Text

Submittal of 2011 Annual Radiological Environmental Operating Report
	ML12123A022
Person / Time
Site:	Seabrook
Issue date:	04/26/2012
From:	O'Keefe M; NextEra Energy Seabrook
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	SBK-L-12096
	Download: ML12123A022 (258)
	v • d • e

NEXTera m ENERGY, f SEABROOK April 26, 2012 Docket No. 50-443 SBK-L-12096 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-0001 Seabrook Station 2011 Annual Radiological Environmental Operating Report Pursuant to the requirements of 10 CFR 50.36a(a)(2) and Seabrook Station Technical Specification 6.8.1.3, NextEra Energy Seabrook, LLC submits the 2011 Annual Radiological Environmental Operating Report. The report summarizes the implementation of the NextEra Energy Seabrook, LLC Radiological Environmental Monitoring Program (REMP). Attachment 1 to the report is the complete data set for the REMP samples.

A copy of this report is also being provided to the Commonwealth of Massachusetts, Department of Public Health; and the State of New Hampshire, Bureau of Radiological Health.

Should you require further information regarding this matter, please contact David Robinson, Chemistry Department Manager, at (603) 773-7496.

Sincerely, NextEra Energy Seabrook, LLC Michael O'Kneefe Licensing Manager toe~

NextEra Energy Seabrook, LLC, P.O. Box 300, Lafayette Road, Seabrook, NH 03874

U. S. Nuclear Regulatory Commission SBK-L- 12096/ Page 2 cc: with enclosure NRC Region I Administrator J. G. Lamb, NRC Project Manager, Project Directorate 1-2 W. J. Raymond, NRC Senior Resident Inspector NH DHHS Office of Community & Public Health Bureau of Radiological Health 29 Hazen Drive Concord, NH 03301-6527 Massachusetts Department of Public Health Radiation Control Program Schrafft Center, Suite 1M2A 529 Main Street Charlestown, MA 02129

NEXTera ENERyne 2011 Annual Radiological Environmental Operating Report April 2012

SEABROOK STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT For the Period January - December 2011 Docket No. 50-443 Prepared By:

NextEra Energy Seabrook, LLC Chemistry Department Seabrook Station And AREVA Nuclear & Radiation Engineering Marlborough, Massachusetts 01752 Prepared By: Date:

Mark Strum - AREVA Reviewed By: 4~ ) ~Date; Peter Harvey, NextEra Energy Seabrook, LLC Approved By:seA a,-Z (: Date: -2'JTZ3 12,0~

David Robinson, NextEra Energy Seabrook, LLC

-I-

SEABROOK STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT For the Period January - December 2011 April 2012 Docket No. 50-443 Prepared By:

NextEra Energy Seabrook, LLC Chemistry Departments Seabrook Station And AREVA NP Nuclear & Radiation Engineering Marlborough, Massachusetts 01752 ii

TABLE OF CONTENTS EX ECU TIVE SU MM A RY ........................................................................................................................................................... IV LIST O F TABLES ...................................................................................................................................................................... V II LIST OF FIGURES .................................................................................................................................................................... V III 1.0 IN TRO DU CTION ................................................................................................................................................................ 1 2.0 PLANT OPERATIONS ENVIRONMENTAL MONITORING PROGRAM ................................................................. 2 3.0

SUMMARY

OF PLANT OPERATIONS RADIOLOGICAL ENVIRONMENTAL MONITORING DATA ............. 13 3.1 AIR PARTICULATE ........................................................................................................................................................ 14 3.2 CHARCOAL FILTERS ..................................................................................................................................................... 23 3.3 M ILK ............................................................................................................................................................................ 26 3.4 SURFACE W ATER .......................................................................................................................................................... 32 3.5 G ROUND WATER .......................................................................................................................................................... 36 3.6 SEDIM ENT .................................................................................................................................................................... 42 3.7 FISH ............................................................................................................................................................................. 46 3.8 LOBSTERS .................................................................................... ............................................................................... 50 3.9 SHELLFISH .................................................................................................................................................................... 54 3.10 IRISH M OSS .................................................................................................................................................................. 59 3.11 FOOD CROP .................................................................................................................................................................. 63 3.12 V EGETATION ................................................................................................................................................................ 66 3.13 D IRECT RADIATION ...................................................................................................................................................... 70 3.14 FUKUSHIM A D AIICHI EVENT: LOCAL O BSERVATIONS ............................................................................................ .. 92 4.0 D RY FUEL STORA G E REM P & DATA SU M M A RY .................................................................................................. 100 4.1 D IRECT RADIATION FROM D FS .................................................................................................................................. 100 5.0 PRO G RAM D EV IATION S AN D REPO RTIN G ............................................................................................................ 110 5.1 SAM PLING PROGRAM D EVIATIONS ............................................................................................................................. 110 5.2 COM PARISON O F A CHIEVED LLDS WITH REQUIREM ENTS ......................................................................................... 111 5.3 COM PARISON OF RESULTS A GAINST REPORTING LEVELS ........................................................................................... 112 6.0 QU A LITY A SSU RA N CE PROG RAM ........................................................................................................................... 115 6.1 G EL LABORATORIES Q A ........................................................................................................................................... 115 6.2 EN V IRON M EN TA L TLD Q UA LITY A SSU RAN CE ........................................................................ 129 7.0 LAND U SE CEN SU S ...................................................................................................................................................... 133 A TTA CH MEN T 1: SAM PLE AN A LY SIS DA TA LIST FO R 2011 ........................................................................................ 135 iii

Executive Summary Both the plant operations and Dry Fuel Storage Radiological Environmental Monitoring Programs (REMP) for Seabrook Station' operated successfully for the period of January through December 2011. This report describes the REMP and its implementation as required by Technical Specifications and defined in the Offsite Dose Calculation Manual (ODCM). It also contains analytical results, data evaluation, dose assessment, and data trends for each environmental sample medium. Also included are the results of the Land Use Census, historical data, and the environmental laboratory performance in the Quality Assurance Intercomparison Program required by the ODCM.

Radioactivity levels in the vicinity of Seabrook Station from January 1 through December 31, 2011 in air, water, sediment, milk, fish, food crops, and vegetation, as well as direct radiation measurements have been analyzed, evaluated, and summarized. The results of the REMP are intended to supplement the results of the radiological effluent monitoring by verifying that the measurable concentration of radioactive materials and levels of radiation are not higher than expected on the basis of the effluent measurement and modeling of the environmental exposure pathways.

Radiation and radioactivity in the environment is monitored within a 10-mile radius of the site. Two types of samples are taken. The first type, control samples, is collected from areas that are beyond measurable influence of Seabrook Station. These samples are used as reference data. Normal background radiation levels, or radiation present due to causes other than Seabrook Station, can thus be compared to the environment surrounding the nuclear power station. Indicator samples are the second sample type obtained.

These samples show how much radiation or radioactivity is contributed to the environment by the site.

Indicator samples are taken from areas close to the station where any plant contribution will be at the highest concentration. The ODCM minimum required plant operations REMP (broad leaf vegetation substituted for lack of sufficient milk locations) includes the collection of 560 samples per year, with a total of 2400 individual measurement analyses. In 2011, the total number of collected samples (both required and non-required) equaled 854 taken from 97 locations around Seabrook Station. These included aquatic, atmospheric, and terrestrial environments. An estimated 5431 individual measurement analyses were performed on these samples. The plant operations radiological environmental monitoring program is outlined in Table 2.0-1.

Radiation environmental monitoring associated with Dry Fuel Storage (DFS) included 24 direct radiation measurements using environmental TLDs in 2011. The DFS environmental monitoring program is shown on Table 4.0-1.

Prior to station operation, samples were collected and analyzed to determine the amount of radioactivity present in the area. The resulting values are used as a "pre-operational baseline." Current analysis results from the indicator samples are compared to both current control sample values and the pre-operational baseline to determine if changes in radioactivity levels are attributable to station operations.

A report is required to be submitted to the Nuclear Regulatory Commission when the level of radioactivity as a result of plant operations in an environmental sampling medium at a specified location exceeds the limits specified in the ODCM when averaged over any calendar quarter. Also, when more than one of the radionuclides is detected in the sampling medium, this report shall be submitted if:

Concentration (1) + Concentration (2) + ... > 1.0 Limit Level (1) Limit Level (2)

Based on the analytical results of environmental samples during 2011, Seabrook Station reporting levels were not exceeded.

All off-site radioactivity detected was attributable to either naturally occurring radionuclides, previous nuclear weapons tests, the Fukushima Daiichi nuclear accident in Japan on March 11, 2011, or other man-made sources.

In 2011, the maximum whole body dose to the hypothetically exposed individual due to Seabrook Station operations was estimated to be 0.078 mrem. This whole body dose is the sum of all the exposure pathways for liquid and gaseous effluents, plus the direct whole body dose from station sources. This total represents approximately 0.31% of the whole body dose limits for a member of the public as set forth in 40CFR190.

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The average effective dose per individual in the U.S. population from ubiquitous or background radiation sources is about 3.11 mSv/yr (311 mrem/yr), with another 3.00 mSv/yr (300 mrem/yr) resulting from medical procedures and imaging (NCRP Report No. 160, "Ionizing Radiation Exposure of the Population of the United States" (2009)). The estimate for natural background includes radon gas which has always been present but has not always been included in previous estimates. In some regions of the country, the amount of natural radiation is significantly higher. Residents of Colorado, for example, receive an additional 60 mrem/yr due to the increase in cosmic and terrestrial radiation levels. In fact, for every 100 feet above sea level, a person will receive an additional 1 mrem/yr from cosmic radiation. In several regions of the world, naturally high concentrations of uranium and radium deposits result in doses of several thousand mrem/yr to their residents (CRC Handbook. "Radioecology: Nuclear Energy and the Environment", F. Ward Whicker and Vincent Schultz, Volume 1,1982).

Analytical results are divided into four ODCM required categories based on exposure pathways: Airborne, direct radiation, ingestion, and waterborne. Each of these pathways is described below:

The airborne exposure pathway includes airborne iodine and airborne particulate. The 2011 results reflected both detectable low levels of airborne 1-131, Cs-1 34 and Cs-1 37 in the March -April time period, coincident with a notable spike (maximum of 3.7 times normal) in airborne gross beta activity.

The presence of fission products in airborne environmental sample (both indicator and control stations) for short portions of the year is attributed to atmospheric fallout related to the Fukushima Daiichi nuclear accident in Japan on March 11, 2011. After the March - April time frame, airborne levels of gross beta activity returned to pre-Fukushima levels with no detectable levels of fission products found in air samples for the remainder of the year.

" The direct exposure pathway measures environmental radiation exposures by use of thermoluminescent dosimeters (TLDs). TLD results have indicated a trend that compares with previous years which reflect the natural variability of background radiation from one location to another. The exposure rate response at some individual monitoring stations has exhibited step changes at some point in the past that appear to be related to changes in local conditions in the area of the dosimeter measurement. These step observations have been noted at indicator locations at various distances from the plant, as well as at control locations, leading to the conclusion that the changes in local TLD responses are not related to Seabrook operations. As a result, no significant radiation contribution from Seabrook Station sources was identified via TLD environmental measurements off-site during the course of 2011 from either plant operations or from the spent fuel in the Dry Fuel Storage Facility.

The ingestion exposure pathway includes milk, fish, food products and leafy vegetation samples. The gamma spectroscopy counting indicated the most prominent positive results were for potassium-40 (K-40) at average environmental levels. Other naturally occurring radionuclides were also periodically detected. However, the Fukushima Daiichi nuclear accident did result in detectable fallout of fission related radionuclides in leafy vegetation, and possibly milk. Neither fish nor terrestrial food products (strawberries and tomatoes) had any detectable fission product related radioactivity. Observed levels of Cs-1 37 in milk can be attribute to past weapons fall out based on similar detectable levels with those observed prior to the Fukushima Daiichi event, but some contribution from the nuclear accident can not be totally ruled out. Broad leafy vegetation samples were also found with detectable Cs-1 37 and Cs-1 34 which was attributed to the Fukushima Daiichi accident. No radionuclides related to plant effluents were detected in any of these sample media during 2011.

" The waterborne exposure pathway includes surface (ocean) water, drinking water supply, shallow well water, sea algae (Irish Moss) and sediment. Water samples were analyzed for tritium, gross-beta and gamma-emitting radionuclides. Irish Moss was analyzed for gamma-emitting radionuclides. Tritium was not identified in the water samples analyzed. For groundwater, the gross beta activity seen at all locations is similar to what was seen in the pre-operational program and is consistent with results from previous years of commercial operations. Gamma analysis of samples indicated no plant-related gamma-emitting radionuclides above detection limits.

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The results of the 2011 REMP continues to clearly demonstrate that there is no significant short term or chronic long-term radiological impact on the environment in the vicinity of Seabrook Station from plant operations and that there is no detectable impact to members of the public associated with the DFS facility.

The REMP monitoring did detect local area fall-out of fission products related to the Japanese nuclear accident in March, 2011, thereby demonstrating the sensitivity and capability of the REMP to detect low level radiological changes in the environment and the likely source. The REMP confirmed that plant effluents in 2011, did not contribute measurable radiation exposure to the general public. This finding is consistent with previous year's monitoring conclusions. As a result, no increasing or changing trends in plant related radiological impacts on the environment are found.

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LIST OF TABLES Number Title Paqe 2.0-1 Plant Operations Radiological Environmental Monitoring Program .................. 3 2.0-2 Plant Operations Radiological Environmental Monitoring Locations ................................ 4 3.1-1 REMP Summary (Medium: Air Particulates) ........................................................ 21 3.2-1 REMP Summary (Medium: Charcoal Cartridge) ................................................ 24 3.3-1 REMP Summary (Medium: Milk) ..................................................................... .. 30 3.4-1 REMP Summary (Medium: Sea Water) ............................................................. 33 3.5-1 REMP Summary (Medium: Ground Water) .......................................................... 39 3.6-1 REMP Summary (Medium: Sediment) .............................................................. 43 3.7-1 REMP Summary (Medium: Fish) .................................................................. 47 3.8-1 REMP Summary (Medium: American Lobster) .................................................. 51 3.9-1 REMP Summary (Medium: Mussel Body) ................................................... .... 55 3.9-2 REMP Summary (Medium: Mussel Shell) ........................................................... 58 3.10-1 REMP Summary (Medium: Irish Moss) .............. ! ............................................ 60 3.11-1 REMP Summary (Medium: Food Crops) ........................................................... 64 3.12-1 REMP Summary (Medium: Vegetation) ............................................................. 67 3.13-1 Environmental TLD Measurements ................................................................................ 71 3.13-2 Pre-Operational Environmental TLD Measurements ............................................ 73 3.14-1 Broad leaf Vegetation at TG-10 for Cs-1 37 ........................................................ 93 3.14-2 Selected Milk Samples in 2011 ................................................. . . ............. 94 3.14-3 Selected AP/CF-09 Georgetown Light (Control) Analyses in 2011 ........................... 96 3.14-4 Selected AP Cs-1 37 Analyses in 2011 .............................................................. 96 3.14-5 Selected Air Particulate Composite Filters for 2 nd Quarter 2011 ............................... 97 4.0-1 Dry Fuel Storage (DFS) TLD Monitoring Locations ................................................. 102 4.1-1 DFS Environmental TLD Measurements (2011) ..................................................... 103 5.2-1 Detection Capabilities for Environmental Sample Analysis .............................................. 113 5.3-1 Reporting Levels for Radioactivity Concentrations in Environmental Samples ................ 114 6.1-1 2011 Radiological Intra-Laboratory Data Summary: Bias and Precision by Matrix ........... 120 6.1-2 2011 Eckert & Ziegler Analytics Performance Evaluation Results Summary .................. 126 6.1-3 2011 REMP Intra-Laboratory Data Summary: Bias & Precision by Matrix ............... .. 128 6.2-1 Percentage of Individual Dosimeters That Passed EDC Internal Criteria ..................... 130 6.2-2 Mean Dosimeter Analyses (N=6) ........................................................................ 131 6.2-3 Summary of Independent Dosimeter Blind Spike Testing ......................................... 131 6.2-4 Summary of Independent Blind Duplicate Dosimeter Testing .................................... 132 7.0-1 2011 Land Use Census Results ........................................................................ 134 vii

I I

U LIST OF FIGURES Number Title Page Figure 2.1 Radiological Environmental Monitoring Locations within 4 Kilometers of Seabrook Station ..................... 7 I Figure 2.2 Radiological Environmental Monitoring Figure 2.3 Locations Between 4 & 12 Kilometers of Seabrook Station ........................... 8 Radiological Environmental Monitoring I

Locations Outside 12 Kilometers of Seabrook Station ................................ 9 Figure 2.4 Direct Radiation Monitoring Locations Within 4 Kilometers of Seabrook Station .......................................................... 10 U

Figure 2.5 Figure 2.6 Direct Radiation Monitoring Locations Between 4 & 12 Kilometers of Seabrook Station ...........................................................

Direction Radiation Monitoring Locations Outside 11 I 12 Kilometers of Seabrook Station ......................................................... 12 Figure 3.1 Gross-Beta Measurements of Air Particulate Filters .................................. 16 I Figure 3.1.1 Gross-Beta Measurements of Air Particulate Filters Figure 3.1.2 Q uarterly Averages ...........................................................................

Gross-Beta Measurements of Air Particulate Filters 17 U

Q uarterly Averages ........................................................................... 18 Figure 3.1.3 Gross-Beta Measurements of Air Particulate Filters Q uarterly A verages ............................................................................ 19 Figure 3.1.4 Gross-Beta on Air Particulate Filters Quarterly Averages .......................... 20 Figure 3.2 1-131 Measurements of Air Charcoal Cartridges ..................................... 25 Figure 3.3 C esium -137 in Milk ........................................................................... 27 Figure 3.3.1 Figure 3.3.2 Cesium-1 37 in Milk Annual Average Concentrations ................................

Cesium-1 37 in Milk Annual Average Concentrations ................................. 29 28 I

Figure 3.5 Figure 3.5.1 Gross-Beta Measurements of Ground Water ..........................................

Gross-Beta Measurements of Ground Water 37 I

Sem i-Annual Averages ..................................................................... 38 Figure 3.6 Figure 3.6.1 Environmental Radiation Measurements (Using TLDs) ................................ 74 Environmental Radiation Measurements (Using TLDs) .............................. 75 I

Figure 3.7 Figure 3.7.1 Environmental Radiation Measurements (Using TLDs) .............................. 76 Environmental Radiation Measurements (Using TLDs) .............................. 77 1

Figure 3.8 Environmental Radiation Measurements (Using TLDs) ................. 78 Figure 3.8.1 Environmental Radiation Measurements (Using TLDs) ............................... 79 I Figure 3.9 Environmental Radiation Measurements (Using TLDs) .............................. 80 Figure 3.9.1 Figure 3.10 Environmental Radiation Measurements (Using TLDs) .............................. 81 Environmental Radiation Measurements (Using TLDs) ..................... 82 I

Figure 3.10.1 Environmental Radiation Measurements (Using TLDs) .............................. 83 I

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LIST OF FIGURES (Continued)

Figure 3.11 Environmental Radiation Measurements (Using TLDs) ......................... 84 Figure 3.11.1 Environmental Radiation Measurements (Using TLDs) .............. 85 Figure 3.12 Environmental Radiation Measurements (Using TLDs) ......................... 86 Figure 3.12.1 Environmental Radiation Measurements (Using TLDs) ......................... 87 Figure 3.13 Environmental Radiation Measurements (Using TLDs) ......................... 88 Figure 3.13.1 Environmental Radiation Measurements (Using TLDs) .............. 89 Figure 3.14 Environmental Radiation Measurements (Using TLDs) ......................... 90 Figure 3.14.1 Environmental Radiation Measurements (Using TLDs) ......................... 91 Locations .....................

Figure 4.0.1 Dry Fuel Storage TLD Environmental Monitoring 101 Figure 4.1 DFS Control Radiation Measurements (Using TLDs) .............................. 104 Figure 4.2 DFS Environmental Radiation Measurements (Using TLDs) ................. 105 Figure 4.3 DFS Environmental Radiation Measurements (Using TLDs) .................... 106 Figure 4.4 DFS Environmental Radiation Measurements (Using TLDs) ................. 107 Figure 4.5 DFSEnvironmental Radiation Measurements (Using TLDs) ................. 108 Figure 4.6 DFS Environmental Radiation Measurements (Using TLDs) ................. 109 ix

ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT 1.0 Introduction NextEra Energy Seabrook, LLC's Radiological Environmental Monitoring Program (REMP) consists of two interconnected sample collection and measurement schedules that look for environmental influences from: (1) plant operations which release to the environment radioactive materials in liquid and gaseous effluents, and direct radiation from plant facilities inside the power block Protected Area, and (2) direct radiation from used fuel placed in the Dry Fuel Storage (DFS) facility located in the West Southwest sector approximately 0.38 miles from the Containment Building. Several monitoring locations provide data that are shared or used in the assessment of both plant and DFS operations The plant operations REMP at Seabrook Station has been designed and carried out to achieve the following specific objectives:

To provide an indication of the appearance or accumulation of any radioactive material in the environment caused by the operation of the nuclear power station.

" To provide assurance to regulatory agencies and the public that the station's environmental impact is known and within anticipated limits.

" To verify the adequacy and proper functioning of station effluent controls and monitoring systems.

" To provide standby monitoring capability for rapid assessment of risk to the general public in the event of unanticipated or accidental releases of radioactive material.

In July 2008, the plant operations REMP was supplemented with the DFS environmental monitoring for direct radiation when used nuclear fuel assemblies were for the first time transferred to the on-site DFS facility located WSW of the power block.

NextEra Energy Seabrook, LLC staff collected the terrestrial samples. Normandeau Associates, Inc.

collected the marine and sediment samples. After initial sample preparation for shipment, the samples were sent to GEL Laboratories, Inc. of Charleston, SC for analysis. The Environmental Dosimetry Company located in Sterling, MA processed the environmental TLDs for the entire year.

This report is a summary of the findings of the REMP for 2011. It is being provided in compliance with Part A of Seabrook Station's ODCM and Technical Specification 6.8.1.3.

2.0 Plant Operations Environmental Monitoring Program Table 2.0-1 outlines the plant operations monitoring program as specified in the Seabrook Station ODCM, Part B, Section 4. Table 2.0-2 lists the operational sampling stations and their specific locations (distances are measured from the center of the Unit 1 Containment Building). The sampling locations are shown on maps in Figures 2.1 through 2.6. The sampling and analysis program as described above fulfills the minimum requirements for environmental sample collection and analysis as contained in ODCM Table A.9.1-1, and includes additional sampling of various pathways and locations beyond the minimum requirements.

Below are listed the two-letter media codes and what they represent:

AP Air Particulate CF Charcoal Filter TM Milk WG Ground Water WS Surface (Sea) Water SE Sediment FH Fin fish HA Lobsters MU Mussels (Shellfish.- edible portion only)

MS Mussels (Shellfish - shell portion only)

TL Direct Radiation (TLD)

AL Irish Moss (algae)

TF Food Crop TG Vegetation (broad-leaf)

Table 2.0-1 Plant Operations Radiological Environmental Monitoring Program Media Sampling Frequency Required Analyses Air Particulate (AP) -Bi-Weekly Gross Beta

-Quarterly Composite Gamma spectroscopy Charcoal Filter (CF) -Bi-Weekly 1I-13 1 Milk (TM) -Monthly (Semimonthly Gamma spectroscopy when animals 1-131 are on pasture)

Surface (Sea) Water (WS) -Monthly Gamma spectroscopy

-Quarterly Composite H-3 (composite)

Sediment (SE) -Semiannually Gamma spectroscopy Fish & Invertebrates -Quarterly or Gamma spectroscopy (FH, HA, MU) -Semiannually Direct Radiation (TL) -Quarterly Integrated gamma exposure Irish Moss (AL) -Semiannually Gamma spectroscopy Ground Water (WG) -Quarterly Gamma spectroscopy Gross Beta H-3 Food Crops (TF) -Monthly/Growing Season Gamma spectroscopy Vegetation (TG) -Monthly/Growing Season Gamma spectroscopy 1-131

Note that broad leaf vegetation is substituted for milk due to insufficient number of required milk sampling locations in the site area.

I Table 2.0-2 I Plant Operations Radiological Environmental Monitoring Locations(a)(b) 2011 Distance I

From Direction Station Code (Media - Sta. No.)

Station DescriDtion Zone Plant (km)

From Plant U PSNH Barge Landing Area 2.6 ESE AP/CF-01+

AP/CF-02+

AP/CF-03+

AP/CF-04+

Hampton Marina (Harbor Rd)

Southwest Boundary West Boundary 2.5 1.0 1.2 E

SW W

I AP/CF-05 AP/CF-07+

AP/CF-08 Winnacunnet High School PSNH Substation E&H Substation 4.0 5.7 3.4 NNE NNW SSE U

AP/CF-09+ Georgetown Electric Light Co. 21.4 SSW TM-15 TM-24 Hampton Falls, NH North Hampton, NH 6.9 8.1 NW NNE I

WG-01 WG-13 Seabrook Town Wells Seabrook Station Well No. 13 5.6 1.0 W

N 3

WG-14 Brimmer's Lane 1.3 NNW WS-01+

WS-51 +

Hampton-Discharge Area Ipswich Bay 5.3 16.9 E

SSE U

WS-02 SE-02 Seabrook Marsh Hampton-Discharge Area 0.1 5.3 SSE E

I SE-07 Hampton Beach 3.1 E SE-08+

SE-52 SE-57 Seabrook Beach Ipswich Bay Plum Island Beach 3.2 16.9 15.9 ESE SSE SSE I

FH-03+

FH-53+

Hampton-Discharge Area Ipswich Bay 4.5 16.4 ESE SSE I

HA-04+

HA-54+

Hampton-Discharge Area Ipswich Bay 5.5 17.2 E

SSE I MU-06+ Hampton-Discharge Area 5.2 E MU-09 MU-56+

MU-59 Hampton Harbor Ipswich Bay Plum Island 2.6 17.4 15.8 E

SSE SSE I

MS-06 MS-56 Hampton-Discharge Area Ipswich Bay 5.2 17.4 E

SSE U

AL-05 AL-55 Hampton-Discharge Area Ipswich Bay 5.2 17.4 E

SSE I TF-02 TF-03 TF-06 Hampton Falls, NH Salisbury, MA Ipswich, MA I

1 2

5.0 5.1 26.0 WNW SW S

U 1

I

Table 2.0-2 (Cont'd)

Plant Operations Radiological Environmental Monitoring Locations(a)(b) 2011 Distance From Direction Station Code Station Plant From (Media - Sta. No.) Description Zone (km) Plant TG-08+ North Access Rd, Site Boundary 1 1.05 W TG-09+ General Office Bid. Site Boundary 1 0.97 SW TG-10+ Georgetown Electric Light Co. 2 21.4 SSW TL-01+ Brimmer's Lane, Hampton Falls 1 0.97 N TL-02+ Landing Road, Hampton 3.0 NNE TL-03+ Glade Path, Hampton Beach 1 2.9 NE TL-04+ Island Path, Hampton Beach 1 2.3 ENE TL-05+ Harbor Road, Hampton Beach 1 2.5 E TL-06+ PSNH Barge Landing Area 1 2.7 ESE TL-07+ Cross Road, Seabrook Beach 1 2.6 SE TL-08+ Farm Lane, Seabrook 1.3 SSE TL-09+ Farm Lane, Seabrook 1.3 S TL-10+ Site Boundary Fence 1.2 SSW TL-11 + Site Boundary Fence 1.0 SW TL-12+ Site Boundary Fence 1 1.2 WSW TL-13+ Inside Site Boundary 1.2 W TL-14+ Trailer Park, Seabrook 1.3 WNW TL-15+ Brimmer's Lane, 1.4 NW Hampton Falls TL-16+ Brimmer's Lane 1.2 NNW Hampton Falls TL-17+ South Road, North Hampton 0 7.8 N TL-18+ Mill Road, North Hampton 0 7.6 NNE TL-19+ Appledore Avenue, 0 7.7 NE North Hampton TL-20+ Ashworth Avenue, 0 3.2 ENE Hampton Beach TL-21+ Route 1A, Seabrook Beach 0 3.7 SE TL-22+ Cable Avenue, Salisbury 0 7.6 SSE Beach TL-23+ Ferry Road, Salisbury 0 8.1 S TL-24+ Ferry Lots Lane, 0 7.2 SSW Salisbury TL-25+ Elm Street, Amesbury 0 7.6 SW TL-26+ Route 107A, Amesbury 0 8.1 WSW TL-27+ Highland St. S. Hampton 0 7.5 W TL-28+ Rte. 150, Kensington 0 7.5 WNW TL-29+ Frying Pan Ln., Hampton Falls 0 7.2 NW TL-30+ Route 27, Hampton 0 7.6 NNW Table 2.0-2 (Cont'd)

Plant Operations Radiological Environmental Monitoring Locations(a)(b) 2011 Distance From Direction Station Code Station Plant From (Media - Sta. No.) Description Zone (km) Plant TL-31+ Alumni Drive, Hampton S 3.8 NNE TL-32+ Seabrook Elementary School S 2.0 S TL-33+ Dock Area, Newburyport S 9.8 S TL-34+ Bow Street, Exeter S 12.0 NW TL-35+ Lincoln Ackerman School S 2.3 NNW TL-36+ Route 97, Georgetown 2 22.6 SSW TL-37+ Post Office Plaistow, NH 2 21.5 WSW TL-38+ Emerson St. Hampstead, NH 2 27.7 W TL-39+ Fremont, NH 2 27.0 WNW TL-40+ Newmarket, NH 2 21.6 NNW TL-41 Portsmouth, NH 2 21.0 NNE TL-42 Ipswich, MA 2 22.8 SSE TL-43 Rocks Road Landing S 0.3 ENE TL-44 Education (Science & Nature) Center S 0.6 SW TL-45 Hampton Fire Station S 4.4 NE TL-46 Seabrook Beach (near Police Station) S 2.8 ESE TL-47 Hampton Falls, NH S 4.1 WNW Zone indices are: 1 = Indicator Stations; 2 = Control Stations; 0 = Outer Ring TLD; I= Inner Ring TLD; S = Special Interest TLD

+ = Sample Locations required by the Off-Site Dose Calculation Manual (ODCM)

(a) Dry Fuel Storage (DFS) locations are listed on Table 4.0-1.

(b) Table reflects those locations included in the 2011 sample collection program.

m mm mm m m m mm M -- --M m mm M -

m co1 PD PqtLV 2.1 REMP Locations WMiun 4 Kloates CD a-LEGEN m

CF - ChwooeJ FIlle

MU - kMusel SE - SsdlrMt 0

-.1 *TG - Vstalon 0

W-Ssm s W&l 0

=3 x CD CD 0ft I I CD Miles CY 0

0 0 .5 1

-- . . . - C I 0

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LEG.EN 0e.

(0 W) m A AP - ArPw*%*om OF - Ohacoe FINW 0D

+AL =Aigm :3 FN4 - Fi~h MU - Mousk 0)

SE - Ssdkent WS -m View 0n MA Leobwr I mTM -Mtdl 0 V TP - Food Pladuft e- Wel Wat CD m

A 3

Miles 0) 0 1 2

-0 77, m mm-mm im=m MIm m m m m m m

21 Figur 2.3 FREMP Localo" CXAmWIe 12 Klomars C LEGEND Saffom~ Location AP -Air Parfikutat m OF - CtwcoaJ FOWe SAL -A Mp FMH.Fish_

SE - SodbrA 0 WS See Mter Cn -

HA Latia 0) -'

rM:u r-0 7 TF -Food Pfaduct R 0

3

TG -vegettfion0 57 CD Mil~es@

0 5 10 0*

Figur 2.4 Dire RIndk*M MOOriDa LOOrs mWUA 4 ItWuAsM LEGEND X TLDs 0

3 0

0~

N 0 0

I Miles 0 .5 1 I, , , ,, ,,, III I nl m m m m m m m m m m m mm m m m m M mm

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3.0 Summary of Plant Operations Radiological Environmental Monitoring Data The following pages. summarize the analytical results of the plant operations environmental samples collected in 2011. Each environmental media category is presented as a separate subsection. A table that summarizes the data follows a discussion of the sampling requirements and results for each media type. Listed at the top of each table are the units of measurement for each medium. The left-hand column contains the radionuclide which is being reported, total number of analyses of that radionuclide, and the number of measurements that exceed the required reporting level as documented in Table A.9.1-3 of the ODCM. The latter are classified as "non-routine" measurements. The next column lists the Lower Limit of Detection (LLD) for those radionuclides that have detection capability requirements specified in the ODCM.

Those sampling stations which are adjacent to the plant and which could conceivably be affected by the operation of Seabrook Station are called "Indicator" or "Zone 1" stations. Distant stations, which are beyond potential plant influences, are called "Control" or "Zone 2" stations.

A set of statistical parameters is calculated for each radionuclide. This set of statistical parameters includes separate analyses for (1) the indicator stations, (2) the station having the highest annual mean concentration for that radionuclide, (3) and control stations. For each of these three groups of data, these parameters are as follows:

The mean value of all concentrations.

" The range of values.

The number of positive measurements (a concentration which is greater than the MDC for the measurement) divided by the total number of measurements.

Each single radioactivity measurement in media datum in this report is based on a single measurement and is reported as a concentration plus or minus a one standard deviation uncertainty. The quoted uncertainty term represents only the random uncertainty associated with the radioactive decay process (counting statistics), and not the propagation of all possible uncertainties in the analytical procedure. contains the data for the samples collected in 2011. The results are organized by sample type, within each sample type the data are alphabetical by nuclide, and within each radionuclide listing the data are chronologically arranged by end date (date of sample collection).

The radionuclide Value concentrations have been corrected for radioactive decay. For composite samples, such as air particulates and airborne iodine, the GEL laboratory uses the mid-point of the collection period as the reference for decay correction until time of analysis.

i 3.1 Air Particulate Air monitoring stations were established at a total of eight locations, six locations required by the ODCM with two additional sites included to supplement the program. Seven of the locations are indicators; while 3

the remaining one is a control station located more than 21 km away from the plant.

Airborne particulate (AP) is collected by passing the air through a glass-fiber filter. In 2011, these filters I were typically collected bi-weekly and held for a period (typically 100 hours0.00116 days 0.0278 hours 1.653439e-4 weeks 3.805e-5 months or more) before being analyzed for gross-beta activity (indicated as BETA in tables) to allow for the decay of radon and thoron daughter products. Continuous automated and real-time remote monitoring of vital air sampling system parameters is performed with telemetry that detects power outages, pump failures, filter degradation, tubing failures and excessive filter loading. The telemetry communicates by cellular transmission to a web server that communicates to a shift technician's pager when set-point thresholds are reached, providing 24/7 alert notification. This capability provides for timely identification of problems and corrective actions that reduceI the potential loss of air sampling. If periods of high dust loading during the collection period caused a higher than normal differential pressure drop across the collection filters, the collection period may be reduced to weekly cycles to reduce the dust loading. In January, 2011, location AP/CF-03 (SW 1.0 km from Containment) was relocated a short distance latterly across the sector to move it away from quarry operations which was a source of excessive dust loading. The new location remains in the Southwest U

sector at the same approximate distance from the Containment Building as the original location; therefore, no change to the ODCM location description was required. There were no recorded collection cycle reductions due to dust loading in 2011. For the year, 217 particulate filters were collected and analyzed for 1

gross beta activity.

The 2011 gross beta activity analyses for the indicator locations were found to be statistically equivalent to that seen at the control station. In the late March to early April time period, a spike in gross beta activity I

was observed (see Figure 3.1) at all air sampling stations. The relative increase in the spike was as much as 3.7 times higher than from the weeks prior. The timing of the observed gross beta spike followed closely after the March 11, 2011 nuclear accident at the Fukushima Daiichi reactor complex in Japan. In I

response, change-out of air sampling filters was performed on a weekly cycle for two weeks to better define the time frame occurrence of changes in airborne activity. A gamma isotopic analysis of one of the weekly filters indicated the presence of both Cs-134 and Cs-137. The presences of Cesium in environmental media which historically has not exhibited detectable levels of these fission products I

prompted a detailed evaluation as to the likely source. Section 3.14 describes the assessment of Cs-134 and Cs-1 37 in airborne particulates, as well as other fission product related radionuclides detect in otherI media during the same time frame of 2011. The conclusion of the assessment was that fallout from the March 11, 2011 Fukushima Daiichi accident in Japan lead to detectable levels of Cs-1 37 and Cs-1 34 being detected in air sampling in the northeast United States in the late March - April time period.

Gamma isotopic analyses of particulate filters are summarized on Table 3.1-1. Cesium-1 34 was detected in only 2 of the 34 analyses performed, while Cs-137 was detected in 8 of the 34 analyses in 2011. The only other radionuclide detected was natural occurring Be-7 which indicated positive in all air particulate samples. Be-7 is of cosmogenic origin, and its presence is consistent with previous years in both the pre-and operational periods.

Near the end of 2010, analysis of environmental samples was changed from the AREVA Environmental Laboratory to GEL Laboratory after the AREVA lab discontinued operations. In comparing long term 3

trends in gross beta activity, the results for 2011 appear to reflect a step increase at the time of the transition between labs. After subtracting the Fukushima Daiichi related spike data, the relative increase between the historical gross-beta response based on AREVA lab data compared to the 2011 GEL data l suggest an average increase of about 1.6 times. However, it is also noted that in 2011 all filter samples from all stations (including controls) showed similar trends lines (see Figure 3.1) over the course of the year. Sampling stations in Figures 3.1.1, 3.1.2, and 3.1.3 illustrate the step increase. The step increase at the beginning of 2011 is also indicated in Figure 3.2 which compares the quarterly average gross beta I

response of all indicator air sampling stations to the control location over the last 17 years. The reason for the step increase is related to the change in the gross beta counting equipment configurations and reference calibration standards used by the AREVA lab and GEL. Both labs use(d) gas proportional counting of the filter element. However, AREVA applied a Cs-1 37 calibration source while the GEL lab uses a Tc-99 calibration source. In the case of the AREVA data record, the Cs-1 37 detection efficiency (typically 34%) was applied to the "gross" counts to determine the apparent activity. This inherently presumes that the radioactivity in a field sample is all Cs-137. In the case of the GEL data record, the Tc-99 efficiency (20.6%), is applied to the same "gross" counts as if all the radioactivity in this case is Tc-99.

The end result is two different gross beta radioactivity determinations for the same level of environmental activity. In application, this is not an adverse condition in that the gross beta counting is used as a qualitative indicator of changes in environmental conditions, not as a quantitative measure of the actual radioactivity. Since the comparison of the response curves for each monitoring station, including the control station, are similar over time, the curves indicate that there is no detectable influence from a single nearby point source such as Seabrook Station.

The overall fluctuations in gross beta activity in 2011 for all stations seen throughout the year, with the exception of the March - April spike associated with the Fukushima Daiichi fallout, can be attributed to changes in the environmental conditions unrelated to plant operations. Natural environmental processes such as wind direction, precipitation, snow cover, and soil temperature and moisture affect concentrations of naturally occurring radionuclides in the atmosphere directly above land.

The air particulate sampling program demonstrated no off-site dose to the public or impact to the environment from this pathway as the result of plant operations. This is consistent with previous years and the pre-operational program. The REMP Summary Table 3.1-1 lists the range of analysis results by radionuclide for Indicator and Control Stations for the air particulate environmental media. Attachment 1 to this report lists the individual analysis results for each measurement of air particulates under the Sample Type code AP.

Air particulate sample collection and analysis deviations from the ODCM required program are described in Section 5.

I U

FIGURE 3.1 GROSS-BETA MEASUREMENTS OF AIR PARTICULATE FILTERS SEABROOK STATION 3

0.12 0.12 1 0.11 0.11 0.10 Fukushima-Daichii 2011

~March Event 01 I

0.09 0.09 3 0.08 0.08 a) 0.07- 0.07 E1 o 0.06-- 0.06 0.05- 0.05 0.04- 0.04 0.03- 0.03 0.02 0.02 0.01 0.01 3 0.00 January February March April May June July August September October November December 0.00 3

2011

-U-AP-01 Barge Landing Area

-4*--AP-02 Hampton Marina 3

--a AP-03 SW Boundary

- AP-04 W Boundary 6

-X-AP-05 Winnacunnet High School AP-09 Georgetown (Control) 3

-N-AP-07 PSNH Substation, Hampton 0 AP-08 Exeter &Hampton Electric Co. 3 A*I

-u mnm - I- m - m -n - -u -

FIGURE 3.1.1 GROSS-BETA MEASUREMENTS OF AIR PARTICULATE FILTERS QUARTERLY AVERAGES SEABROOK STATION 0.16 0.14 Chemobyl May, 1986 0.12 0.1 E

0 0.08 0 Fukushima-5% Criticality Daichii Event 0.06 June, 1989 S~ull Power /

March 2011 0.04 -My 90I 0.02 0 1 12 9 16 9 20 0 2 2 2 2 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

- AP-01 Barge Landing Area AP-02 Hampton Marina

-&- AP-03 SW Boundary

-X---AP-06/09 Georgetown Substation (Control)

FIGURE 3.1.2 GROSS-BETA MEASUREMENTS OF AIR PARTICULATE FILTERS QUARTERLY AVERAGES SEABROOK STATION 0.16-0.14 C

0.12-0.1 E

0.08 0.06 0.04 0.02 0-1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

-- AP-04 W Boundary

--S- AP-05 Winnacunnet High School

-A--AP-06/09 Georgetown Substation (Control) m- m m m m- m =- m =-

-- n m m m mi - m n - m -

FIGURE 3.1.3 GROSS-BETA MEASUREMENTS OF AIR PARTICULATE FILTERS QUARTERLY AVERAGES SEABROOK STATION 0.16 0.14 0.12 0.1 E

5 0.08 0.06 0.04 0.02 0 190 1986 1988 19ý90 19'92 19ý94 1996 1998 2000 2002 2004 2006 2008 2010 2012

AP-06/09 Georgetown Substation (Control)

AP-07 PSNH Substation, Hampton AP-08 Exeter & Hampton Electric Co.

I U

FIGURE 3.1.4 I GROSS-BETA ON AIR PARTICULATE FILTERS QUARTERLY AVERAGES SEABROOK STATION I

0.08 0.08 I

0.06 0.06 U I

E L) 0.04 0.04 U

I 0.02 0.02 I

0 4-1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

- Indicators

- Control Table 3.1-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Air Particulates (AP) UNITS: pCilcubic meter Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

BETA (217) 0.01 3.2E -2 02 3.3E -2 3.2E -2 (0) ( 1.1 - 10.8)E -2 ( 1.2 - 10.8)E -2 ( 1.3 - 6.9)E -2 (189/ 189) (27/ 27) (28/ 28)

Be-7 (34) 1.5E -1 04 3.8E -1 1.0E -1 (0) 8.0 - 116.0)E -2 ( 1.1 - 11.6)E -1 9.6 - 10.8)E -2 (30/ 30) (4/ 4) (4/ 4)

Cr-51 (34) -1.2E -2 08 4.6E -4 -2.7E -3 (0) -1.2 - 0.4)E -1 ( -1.6 - 1.8)E -2 -9.3 - 5.8)E -3 (0/ 30) (0/ 4) (0/ 4)

Mn-54 (34) -1.3E -4 07 1.5E -4 2.5E -5 (0) -2.1 - 0.7)E -3 -2.6 - 6.7)E -4 -1.2 - 1.0)E -4 (0/ 30) (0/ 4) (0/ 4)

Co-57 (34) 8.6E -5 02 3.4E -4 3.5E -5 (0) -8.0 - 160.0)E -5 -4.0 - 160.0)E -5 -1.0 - 1.4)E -4 (0/ 30) (0/ 5) (0/ 4)

Co-58 (34) -4.1E -4 03 2.3E -4 -1.7E -4 (0) -5.9 - 0.9)E -3 -1.1 - 8.9)E -4 -6.9 - 1.6)E -4 (0/ 30) (0/ 4) (0/ 4)

Fe-59 (34) 1.9E -4 07 1.4E -3 -5.5E -4 (0) -2.7 - 4.1)E -3 -6.0 - 407.0)E -5 -9.0 - -1.4)E -4 (0/ 30) (0/ 4) (0/ 4)

Co-60 (34) 0.OE 0 04 3.9E -4 -6.5E -5 (0) -2.0 - 1.7)E -3 -1.3 - 17.3)E -4 -2.0 - 0.0)E -4 (0/ 30) (0/ 4) (0/ 4)

Zn-65 (34) -1.4E -4 02 2.3E -4 -2.5E -4 (0) -5.2 - 0.8)E -3 -2.2 - 6.7)E -4 -3.9 - -1.5)E -4 (0/ 30) (0/ 5) (0/ 4)

Se-75 (34) 8.9E -5 04 6.OE -4 8.0E -5 (0) -1.1 - 2.2)E -3 -1.1 - 18.6)E -4 -1.8 - 3.5)E -4 (0/ 30) (0/ 4) (0/ 4)

Nb-95 (34) -2.OE -4 03 2.2E -4 7.OE -5 (0) ( -5.1 - 1.0)E -3 -4.0 - 9.9)E -4 -9.0 - 19.0)E -5 (0/ 30) (0/ 4) (0/ 4)

Zr-95 (34) -4.6E -4 01 3.1E -4 -1.9E -4 (0) ( -1.7 - 0.2)E -2 -4.4 - 15.7)E -4 -5.9 - 2.3)E -4 (0/ 30) (0/ 4) (0/ 4)

Ru-103 (34) -1.4E -4 07 3.9E -4 -9.8E -5 (0) ( -2.2 - 1.7)E -3 -4.2 - 15.6)E -4 -9.7 - 11.0)E -4 (0/ 30) (0/ 4) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

U Table 3.1-1 (Continued)

Radiological Environmental Monitoring Program Summary I

Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Air Particulates (AP)

I UNITS: pCi/cubic meter Indicator Stations Station With Highest Mean Control Stations U Radionuclides Mean Station Mean Mean (No. Analyses)

(Non-Routine*)

Required LLD Range (No. Detected**)

Range (No. Detected**)

Range (No. Detected**) I Ru-106 (34) -3.9E -4 03 1. 4E -3 2.9E -4 Ag-108m (0)

(34)

-1.4 - 0.3)E -2

-1.3E -4 (0/ 30) 03 1.7 - 28.1)E -4 5.3E -5 (0/ 4)

( -1.3 - 1.5)E -3

-3.OE -5 (0/ 4) I (0) -2.8 - 0.2)E -3 -4.0 I

- 22.0)E -5 ( -8.0 - 1.0)E -5 (0/ 30) (0/ 4) (0/ 4)

Ag-l0mr (34) 1.4E -4 04 7.1E -4 -2.5E -5 (0) -4.2 - 31.4)E -4 -3.2 - 31.4)E -4 ( -2.0 - 1.2)E -4 Sb-124 (34)

(0)

-1.OE -3

-2.9 -

(0/ 30) 0.3)E -2 09 8.OE -4

-1.3 (0/

- 2.6)E 4)

-3 8.0E -4

-1.3 -

(0/ 4) 2.6)E -3 I

(0/ 30) (0/ 4) (0/ 4)

Sb-125 (34)

(0)

-6.8E

-3.5 -

-5 5.2)E -3 (0/ 30) 02 8.OE -4

-7.1 - 52.4)E (0/ 5)

-4 0.OE 0

-5.5 - 4.9)E -4 (0/ 4)

I 1-131 (34)

(0) 2.OE -1

-2.1 - 8.5)E 0 (0/ 30) 04 2.2E 0

-1.1 - 85.4)E -1 (0/ 4)

-4.3E -1

-1.4 - 0.3)E 0 (0/ 4)

I Cs-134 (34) 0.05 1.OE -3 02 2.7E -3 5.7E -4 Cs-137 (0)

(34) 0.06

-2.3 - 119.0)E -4 1.6E -3 (2/ 30) 04

-1.2 - 119.0)E -4 3.6E -3 (1/ 5)

-9.0 -

3.5E -4 196.0)E -5 (0/ 4) I (0)

U

-3.2 - 156.0)E -4 -3.0 - 1430.0)E -5 2.0 - 123.0)E -5 (7/ 30) (1/ 4) (1/ 4)

Ba-140 (34) 5.0E -2 04 3.4E -1 2.3E -2 (0) -4.5 - 135.0)E -2 -1.1 - 135.0)E -2 ( 1.3 - 3.7)E -2 La-140 (34)

(0) 5.OE -2

-4.5 (0/ 30)

- 135.0)E -2 04 3.4E -1 (0/ 4)

-1.1 - 135.0)E -2 (

2.3E -2 1.3 (0/ 4)

- 3.7)E -2 I

(0/ 30) (0/ 4) (0/ 4)

Ce-141 (34)

(0) 9.4E -4

-2.9 - 22.2)E -3 (0/ 30) 04 4.6E -3

-1.7 - 22.2)E -3 (0/ 4) 5.2E -4

-6.6 - 23.3)E -4 (0/ 4)

I Ce-144 (34)

(0) 6.7E -4

-1.3 - 11.4)E -3 (0/ 30) 04 2.7E -3

-7.1 - 114.0)E -4 (0/ 4) 4.8E -4

-4.5 - 14.6)E -4 (0/ 4)

I Ac-228 (34) -4.5E -4 03 8.3E -4 7.0E -4 Th-228 (0)

(34)

-1.1 - 0.2)E -2 3.4E -4 (0/ 30) 02

-3.0 -

6.1E -4 177.0)E -5 (0/ 4)

-2.5 - 15.0)E 2.5E -4 (0/ 4)

-4 I

(0) -1.0 - 24.2)E -4 I

-3.4 - 24.2)E -4 ( 0.0 - 5.0)E -4 (0/ 30) (0/ 5) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I 3.2 Charcoal Filters Charcoal filter (CF) cartridges are in series behind the air particulate glass-fiber filters at each of the air sampling locations. Monitoring stations were established at a total of eight locations. Seven of these are indicators and one is a control. Charcoal filters from the air sampling stations were collected and analyzed for 1-131 activity to a lower limit of detection (LLD) of 0.07 pCi/m 3 or lower.

During 2011, a total of 217 charcoal cartridges from eight locations were analyzed. As described for the air particulate samplers (see Section 3.1), the collection cycles for the charcoal filters were typically biweekly during 2011, though individual stations were run for weekly cycles during parts of March and April when higher than normal gross beta in air was detected following the Fukushima Daiichi accident in Japan. Other conditions, such as observed high differential pressure across the associated particulate filter (none detected in 2011) which might be indicative of excessive dust loading, could prompt switching to a temporary weekly cycle (see Section 3.1).

In 2011, a total of 21 sample analyses indicated detectable levels for 1-131 that was statistically significant (positive). Positive 1-131 was detected in charcoal filters for sampling periods ending March 30 (weekly cycle) at 6 of the 8 air sampling locations, and for the weekly period ending April 6 at all 8 sampling stations. Iodine-1 31 was also detected in 7 of 8 locations for the two week cycle period ending April 20. Positive 1-131 was detected at the control sampling location CF-09 as well as all the indicating station indicating the observed activity was regional in nature and not from Seabrook Station. Figure 3.2 shows the 1-131 measurement responses in 2011 for all air sampling stations. Section 3.14 provides a detailed review of positive measurements of 1-131 in air as well as other fission product related radioactivity detected in other environmental media during this same time period. The combined assessment of detected radioactivity concludes that the source is fallout from the Fukushima Daiicha accident which began in Japan on March 11, 2011 following the earthquake and tsunami.

From initial criticality in June 1989 to the Fukushima Daiichi accident in March 2011, the Seabrook REMP program had not detected radio-iodine at any offsite air sample locations. The pre-operational data for 1-131 are consistent with present data with the exception of the March - April Fukushima Daiichi spikes. Therefore, no increasing or decreasing trends related to Seabrook Station operations were observed. The potential organ doses from iodine in gaseous effluents if assumed to be released at the MDA are well below the 10CFR50, Appendix I dose criteria.

The REMP Summary Table 3.2-1 list the range of analysis results for iodine (1-131) at both Indicator and Control Stations. Attachment 1 to this report lists the individual analysis results for each air sample measurement under the Sample Type code CF.

Charcoal filter sample collection and analysis deviations from the ODCM required program are described in Section 5.

I Table 3.2-1 Radiological Environmental Monitoring Program Summary U

Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011) I MEDIUM: Charcoal Cartridge (CF) UNITS: pCi/cubic meter I

Indicator Stations Station With Highest Mean Control Stations Radionuclides (No. Analyses) Required Mean Range Station Mean Range Mean Range I

(Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

1-131 (217)

(0) 0.07 7.1E -3

-1.4 - 12.9)E -2 02 9.5E -3

-6.6 - 129.0)E -3 6.8E -3

-9.8 - 107.0)E -3 I

(19/ 189) (3/ 27) (2/ 28) U Ii 1

I I

U

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

I

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I I

I FIGURE 3.2 1-131 MEASUREMENTS OF AIR CHARCOAL CARTRIDGES 0.15 0.15 0.13 0.13 Positive 1-131 in Air Fukushima 0.11 Daichl Event 0.11 March 2011 0.09 0.09 E 0.07 0.07 E

0.05 0.05 CL 0.03 0.03

< MDC 0.01 0.01

-0.01 -0.01

-0.03 - -.....

0.03 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011

-.-- CF-01 BARGE LANDING

-a- CF-02 NORMANDEAU

-*- CF-04 PLATE YARD

- CF-05 WINNICUNET HS

- CF-07 TIMBER SWAMP

-s-CF-08 S. MAIN ST.

CF-09 GEORGETOWN CF-03 ROCK PILE 3.3 Milk 3 Milk samples (TM) were collected semi-monthly during the pasture season and monthly at other times. Samples are analyzed for low level 1-131 and gamma-emitting radionuclides.

The ODCM (Table A.9.1-1) requires that milk samples be collected from three locations within 5 km of the plant having the highest dose potential. If there are none, then one sample from milking animals in each of three areas between 5 to 8 km distances where the doses are calculated to be greater than 1 mrem/yr. Due to the limited inventory of milk animals in the site area, as reconfirmed by the 2011 Land Use Census, the number of available sample locations required by the ODCM sampling program could not be met (insufficient numbers of milk animals within 5 km, and only one milk location between 5 and 8 km). The Land Use Census (See Section 7.0) identified one new milk (goat) location within 5 km, but had insufficient availability of milk supply to allow its inclusion into the REMP. The ODCM allows for broad leaf vegetation samples to be collected if milk sampling is not performed in accordance to the REMP requirements. As a result, two site boundary and one control vegetation collection locations are sampled to compensate for the limited milk (see Section 3.12).

I The Land Use Census also identified a milk (goat) location situated 8.1 km, NNE, just beyond the ODCM required 8.0 km maximum distance for indicator milk sampling sites. This location (designated TM-24) also has limited number of milking animals and has indicated that it could not provide a reliable source of milk throughout the year. Eight samples were collected over 5 months in 2011 while milk supplies were available. Due to the distance and limited availability of milk, TM-24 does not qualify as an ODCM defined indicator sampling site.

A total of 27 milk samples were collected during the year from available locations. Each sample was analyzed for gamma emitting radionuclides. In addition, all samples were evaluated for low levels of 1-131 through an iodine extraction process. The gamma analyses on samples indicated that naturally occurring potassium-40 was detectable in all milk samples in 2011. Also detected in 21 milk samples was Cs-1 37 at an average concentration of 6.86 pCi/kg (positive measurements only) which falls in the range of past and pre-operational measurements. Location TM-15 was observed with the highest single Cs-137 analysis result in 2011 of 13.0 pCi/kg (down from 2010 peak of 19.4 pCi/kg). The source of positive Cs-1 37 in other media was attributed to I

fallout from the Fukushima Daiicha accident which began in Japan on March 11, 2011 following the earthquake and tsunami. Though the Fukushima Daiichi event may well have contributed to the Cs-137 levels observed in milk in 2011, Cesium has historically been detected at similar levels in milk before the nuclear accident in Japan.

Residual Cs-1 37 from past weapons testing fallout has been the major contributor attributed to the current U

observed values in milk. There was no detectable Cs-1 37 reported in plant gaseous effluents during 2011, or recent past which supports the finding that Seabrook Station is not the source. Figures 3.3, 3.3.1 and 3.3.2 illustrate the analysis results (without regard to whether individual analysis indicated detectable or statistically not distinguishable concentrations) for Cs-1 37 in milk over the current year (2011) and previous years.

Potassium-40 was detected in all indicator and control location samples. Potassium-40 is a naturally occurring nuclide detected in many environmental sample media. lodine-131 was not positively identified at any location for I

the year. This is consistent with previous years for both the pre-operational and operational phases of the program. The samples met the Lower Limit of Detection (LLD) requirements (1 pCi/kg) for 1-131 in milk. No increasing or decreasing trends in the radioactivity content of milk were observed. The postulated maximum organ dose associated with Cs-1 37 in milk was conservatively estimated in Section 3.14.

The REMP Summary Table 3.3-1 lists the range of analysis results by radionuclide for Indicator and Control Stations for the milk. Attachment 1 to this report lists the individual analysis results for each measurement of 3

milk under the Sample Type code TM. Section 5 identifies any deviations in the sample measurement program, such as missed lower limits of detection (LLD) requirements. 3 FIGURE 3.3 CESIUM-137 IN MILK SEABROOK STATION 30 30 25- -25 20- 20 15- 15 03

0) 10- 10 0.

5. -5 0- -0

< MDC

-5 Cs-137 < MDC

--5

-10 -- 10 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 TM-24 Goat Herd, N. Hampton, NH

-*TM-15 Goat Herd, Hampton Falls NH FIGURE 3.3.1 CESIUM-137 IN MILK ANNUAL AVERAGE CONCENTRATIONS 30 30 25 25 20 20 CL 15 15 0.

10 10 5 5 0~j ~ IjW 0 II

-- D-TM-04 Dairy Farm, Salisbury MA

TM-08 (prior to 1995 TM-10) Dairy Farm, Hampton Falls NH

--O-TM-09 Dairy Farm, Hampton NH A TM-15 Goat Herd, Hampton Falls NH FIGURE 3.3.2 CESIUM-137 IN MILK ANNUAL AVERAGE CONCENTRATIONS 30 30 25 25 20 20 15 15 (0.

10 10 5 5 0 0 1P& N lpý

--- TM-16 Goat Herd, Kensington NH

TM-21 Dairy Farm, N. Andover MA (Control)

-*-TM-23 Sunshine Dairy Farm, Newbury, MA W*TM-24 Goat Herd, N. Hampton NH

-O--TM-20 Dairy Farm, Rowley MA (Control)

Table 3.3-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Milk (TM) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Be-7 (27) -2.OE 0 15 -1. 7E 0 NO DATA (0) ( -1.4 - 1.4)E 1 ( -1.4 - 1.4)E 1 (0/ 27) (0/ 19)

K-40 (27) 1.8E 3 24 1.9E 3 NO DATA (0) ( 1.5 - 2.2)E 3 ( 1.7 - 2.2)E 3 (27/ 27) (8/ 8)

Cr-51 (27) -1.5E 0 24 -1.2E 0 NO DATA (0) ( -1.2 - 0.8)E 1 ( -1.2 - 0.6)E 1 (0/ 27) (0/ 8)

Mn-54 (27) -4.OE -1 15 -2.5E -1 NO DATA (0) ( -2.0 - 1.0)E 0 ( -2.0 - 1.0)E 0 (0/ 27) (0/ 19)

Co-57 (27) -4.5E -2 24 1.8E -1 NO DATA (0) ( -1.6 - 1.9)E 0 ( -1.0 - 1.9)E 0 (0/ 27) (0/ 8)

Co-58 (27) -1.OE -2 24 1.4E -1 NO DATA (0) ( -1.5 - 2.7)E 0 ( -1.2 - 2.7)E 0 (0/ 27) (0/ 8)

Fe-59 (27) 8.9E -1 15 1.OE 0 NO DATA (0) ( -1.9 - 6.7)E 0 ( -1.9 - 6.7)E 0 (0/ 27) (0/ 19)

Co-60 (27) 2.7E -2 15 6.8E -2 NO DATA (0) ( -1.4 - 1.4)E 0 -1.4 - 1.4)E 0 (0/ 27) (0/ 19)

Zn-65 (27) -1.4E 0 24 -1.33E 0 NO DATA (0) ( -5.0 - 1.9)E 0 -3.0 - 1.9)E 0 (0/ 27) (0/ 8)

Se-75 (27) 1.6E -1 24 2.3E -1 NO DATA (0) 1 -1.7 - 2.0)E 0 -9.2 - 9.2)E -1 (0/ 27) (0/ 8)

Nb-95 (27) 6.OE -1 24 6.OE -1 NO DATA (0) ( -5.2 - 24.9)E -1 -4.2 - 15.1)E -1 (0/ 27) (0/ 8)

Zr-95 (27) -3.3E -1 24 -2.3E -1 NO DATA (0) ( -3.4 - 3.0)E 0 -1.9 - 0.9)E 0 (0/ 27) (0/ 8)

Ru-103 (27) -7.2E -1 15 -6.8E -1 NO DATA (0) ( -2.2 - 1.2)E 0 -2.2 - 0.8)E 0 (0/ 27) (0/ 19)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

Table 3.3-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Milk (TM) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected*) (No. Detected**) (No. Detected-)

Ru-106 (27) 8.4E -1 24 3.7E 0 NO DATA (0) -9.8 - 13.7)E 0 ( -8.6 - 13.7)E 0 (0/ 27) (0/ 8)

Ag-108m (27) -3.8E -1 15 -2.8E -1 NO DATA (0) -2.5 - 0.8)E 0 ( -1.6 - 0.8)E 0 (0/ 27) (0/ 19)

Ag-ll0m (27) -1.1E -1 15 5.2E -1 NO DATA (0) -1.0 - 0.5)E 1 -1.2 - 4.7)E 0 (0/ 27) (0/ 19)

Sb-124 (27) -9.8E -2 15 7.7E -3 NO DATA (0) -2.8 - 2.5)E 0 -2.8 - 2.5)E 0 (0/ 27) (0/ 19)

Sb-125 (27) -2.OE -1 24 5.0E -1 NO DATA (0) -3.8 - 3.3)E 0 -1.7 - 3.3)E 0 (0/ 27) (0/ 8) 1-131 (27) 1 7.9E -2 15 1.2E -1 NO DATA (0) -4.6 - 8.3)E -1 -2.9 - 8.3)E -1 (0/ 27) (0/ 19)

Cs-134 (27) 15 1.4E -1 24 5.9E -1 NO DATA (0) -1.8 - 2.1)E 0 ( -9.1 - 20.5)E -1 (0/ 27) (0/ 8)

Cs-137 (27) 18 5.7E 0 15 7.3E 0 NO DATA (0) -1.7- 13.0)E 0 ( 3.2 - 13.0)E 0 (21/ 27) (18/ 19)

Ba-140 (27) 15 -3.1E -1 24 4.7E -2 NO DATA (0) -2.5 - 1.5)E 0 ( -1.5 - 1.5)E 0 (0/ 27) (0/ 8)

La-140 (27) -3.1E -1 24 4.7E -2 NO DATA (0) ( -2.5 - 1.5)E 0 ( -1.5 - 1.5)E 0 (0/ 27) (0/ 8)

Ce-141 (27) -1.1E 0 24 -2.1E -2 NO DATA (0) ( -8.7 - 2.6)E 0 ( -4.6 - 2.6)E 0 (0/ 27) (0/ 8)

Ce-144 (27) 1.3E -1 15 8.7E -1 NO DATA (0) ( -9.3 - 13.9)E 0 ( -8.7 - 13.9)E 0 (0/ 27) (0/ 19)

Ac-228 (26) 8.9E -2 24 2.8E 0 NO DATA (0) ( -7.7 - 7.0)E 0 ( -1.1 - 6.7)E 0 (0/ 26) (0/ 8)

Th-228 (27) 9.5E -1 15 1.2E 0 NO DATA (0) ( -3.5 - 8.0)E 0 ( -3.5 - 8.0)E 0 (0/ 27) (0/ 19)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

3.4 Surface Water Surface water (seawater - WS) grab samples are required at two locations (control and indicator) monthly. The indicator (WS-01) is over the vicinity of the plant's submerged discharge structure. The control location (WS-

51) is situated in Ipswich Bay, MA, approximately 16.9 km from the plant. A gamma analysis is performed on each sample. Atritium analysis is performed on the quarterly composite of samples from each ODCM required location. Additional samples were collected from the Seabrook Marsh (WS-02) which borders the immediate plant property. The marsh samples are intended to provide indication of any ground water movement across the site area that might carry contamination into the surface waters of the marsh. Each of these samples is I

analyzed for both gamma emitters and tritium.

For 2011, a total of 28 gamma analyses were performed on surface water samples. The only radionuclide detected in 2011 was naturally occurring K-40. No plant-related nuclides were detected. The present data for I

gamma emitters in seawater is consistent with that of the pre-operational program and previous years of operations. Therefore, no increasing or decreasing trends were observed. I Quarterly composites for the required off-shore locations (Stations WS-01 and WS-51) were analyzed for tritium. A total of 8 off-shore samples (composites) were analyzed in 2011, plus two additional samples from the non-ODCM required location (WS-02) situated approximately 600 feet SSE from the Containment Building in Seabrook Marsh. The quarterly composites and WS-02 samples showed no indication of tritium. All I

samples met the required minimum LLD (3000 pCi/kg) for tritium in seawater. These results are consistent with pre-operational tritium data. The achieved Minimum Detectable Concentration (MDC) for the quarterly off-shore I 427 pCi/kg.samples averaged 476 pCi/kg, while the marsh area samples from WS-02 had an average MDC of composite The calculated dose as the result of plant effluents is not evaluated due to the fact that no plant-related I radionuclides were or have been detected inthe past. Therefore, no increasing or decreasing trends in dose were observed. This sampling program demonstrates that there is no impact to the public or environment, through this pathway, from plant operations.

The REMP Summary Table 3.4-1 lists the range of analysis results by radionuclide for Indicator and Control Stations for the sea water environmental media. Attachment 1 to this report lists the individual analysis results for each measurement of sea water under the Sample Type code WS.

Any sample collection and analysis deviations from the ODCM required program, or reportable concentrations that may have occurred during the year are described in Section 5.

Table 3.4-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Sea Water (WS) UNITS: pCi/kq Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

3000 H-3 (10) 3000 2.3E 1 2.OE 2 2.OE 2 (0) -1.1 - 2.7)E 2 0.0 - 3.1)E 2 0.0 - 3.1)E 2 (0/ 6) (0/ 4) (0/ 4)

Be-7 (28) 9.5E -1 3.7E 0 -9.OE -1 (0) -5.6 - 7.1)E 0 3.9 - 70.8)E -1 -8.6 - 12.2)E 0 (0/ 15) (0/ 2) (0/ 13)

K-40 (28) 3.OE 2 3.2E 2 3.OE 2 (0) 1.5 - 3.6)E 2 2.6 - 3.6)E 2 1.9 - 3.5)E 2 (15/ 15) (13/ 13) (13/ 13)

Cr-51 (28) 5. 1E -1 2.3E 0 2.3E 0 (0) -1.0 - 1.3)E 1 -6.2 - 16.2)E 0 -6.2 - 16.2)E 0 (0/ 15) (0/ 13) (0/ 13)

Mn-54 (28) 15 -2.6E -1 -1.1E -2 -i.IE -2 (0) -1.1 - 0.9)E 0 -1.4 - 1.0)E 0 -1.4 - 1.0)E 0 (0/ 15) (0/ 13) (0/ 13)

Co-57 (28) -1.5E -1 -4.8E -2 -3.0E -1 (0) -1.2 - 1.2)E 0 -5.6 - -4.1)E -2 -1.1 - 0.5)E 0 (0/ 15) (0/ 2) (0/ 13)

Co-58 (28) 15 -4.5E -1 -1.9E -1 -2.2E -1 (0) -4.1 - 0.7)E 0 -2.4 - -1.4)E -1 -2.3 - 0.9)E 0 (0/ 15) (0/ 2) (0/ 13)

Fe-59 (28) 30 3.5E -1 1.5E 0 1.7E -1 (0) -1.5 - 3.1)E 0 -3.5 - 3070.0)E -3 -2.3 - 5.5)E 0 (0/ 15) (0/ 2) (0/ 13)

Co-60 (28) 15 2.6E -1 5.2E -1 5.6E -2 (0) -9.9 - 11.8)E -1 2.0 - 8.5)E -1 -1.3 - 0.8)E 0 (0/ 15) (0/ 2) (0/ 13)

Zn-65 (28) 30 -7.1E -1 -5.9E -1 -2.1E 0 (0) -3.2 - 1.8)E 0 -3.2 - 1.8)E 0 -6.9 - 1.4)E 0 (0/ 15) (0/ 13) (0/ 13)

Se-75 (28) -2.OE -2 1.OE -1 1.5E -2 (0) -1.4 - 1.9)E 0 -1.4 - 1.9)E 0 -1.7 - 1.2)E 0 (0/ 15) (0/ 13) (0/ 13)

Nb-95 (28) 2.8E -1 4.7E -1 4.7E -1 (0) -7.1 - 10.6)E -1 -1.2 - 1.2)E 0 -1.2 - 1.2)E 0 (0/ 15) (0/ 13) (0/ 13)

Zr-95 (28) 15 2.5E -1 51 6.4E -1 6.4E -1 (0) -1.5 - 2.6)E 0 -1.5 - 4.8)E 0 -1.5 - 4.8)E 0 (0/ 15) (0/ 13) (0/ 13)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I Table 3.4-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH N

(January - December 2011)

MEDIUM: Sea Water (WS)

Indicator Stations UNITS: pCi/kg Station With Highest Mean Control Stations I

Radionuclides (No. Analyses)

(Non-Routine*)

Required LLD Mean Range (No. Detected**)

Station Mean Range (No. Detected**)

Mean Range (No. Detected**)

I Ru-103 (28)

(0)

-9.7E -1

-2.1 - 0.4)E 0 02 -5.0E -1

-1.4 - 0.4)E 0

-6.7E -1

-3.0 - 1.3)E 0 I

(0/ 15) (0/ 2) (0/ 13)

Ru-106 (28)

(0)

-3.OE -1

-1.2 - 0.8)E 1 51 1.2E 0

-1.1 - 1.2)E 1 1.2E 0

-1.1 - 1.2)E 1 I

(0/ 15) (0/ 13) (0/ 13)

Ag-108m (28)

(0)

-7.8E -2

-1.1 - 0.7)E 0 (0/ 15) 51 -1.7E -2

-8.3 - 6.9)E -1 (0/ 13)

-1.7E -2

-8.3 - 6.9)E -1 (0/ 13)

I I

Ag-ll0m (28) -1.1E 0 51 -5.2E -1 -5.2E -1 (0) -8.3 - 0.5)E 0 -1.8 - 0.4)E 0 -1.8 - 0.4)E 0 (0/ 15) (0/ 13) (0/ 13)

Sb-124 (28) 3.6E -1 01 4.1E -1 -9.4E -2 Sb-125 (0)

(28)

-1.7 - 3.2)E 0

-3.5E -1 (0/ 15) 01

-1.7 - 3.2)E 0

-2.6E -1 (0/ 13)

-1.5 - 2.9)E 0

-8.6E -1 (0/ 13) I (0) -2.3 - 3.1)E 0 -2.3 - 3.1)E 0 -3.4 - 3.6)E 0 1-131 (28)

(0) 15 5.1E -1 (0/ 15)

-5.7 - 3.2)E 0 01 6.9E -1 (0/ 13)

-5.7 - 3.2)E 0 4.8E -1 (0/ 13)

-3.9 - 6.5)E 0 I

(0/ 15) (0/ 13)

I (0/ 13)

Cs-134 (28) 15 -1.1E -1 51 3.2E -1 3.2E -1 (0) -1.4 - 1.1)E 0 -9.0 - 11.3)E -1 -9.0 - 11.3)E -1 (0/ 15) (0/ 13) (0/ 13)

Cs-137 (28)

(0) 18 2.7E -1

-2.7 - 1.8)E 0 (0/ 15) 01 3.OE -1

-2.7 - 1.8)E 0 (0/ 13) 1.7E -1

-9.0 - 23.6)E -1 (0/ 13)

I I

Ba-140 (28) 15 -1.7E -1 02 1.4E -1 -2.OE -1 (0) -2.3 - 2.0)E 0 -9.9 - 12.8)E -1 -1.9 - 1.1)E 0 (0/ 15) (0/ 2) (0/ 13)

La-140 (28) -1.7E -1 02 1.4E -1 -2.OE -1 Ce-141 (0)

(28)

( -2.3 - 2.0)E 0 9.3E -1 (0/ 15) 01

-9.9 - 12.8)E -1 1.2E 0 (0/ 2)

-1.9 - 1.1)E 0

-3.2E -1 (0/ 13) I (0) ( -1.7 - 4.6)E 0 -9.7 - 45.8)E -1 -6.1 - 5.0)E 0 Ce-144 (28)

(0) 1.7E 0 (0/ 15)

( -9.3 - 7.9)E 0 02 2.OE 0 (0/ 13)

-3.7 - 43.8)E -1

-2.1E 0 (0/ 13)

-9.7 - 3.6)E 0 I

(0/ 15) (0/ 2) (0/ 13)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses Table 3.4-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Sea Water (WS) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Pb-212 (28) 8.3E -1 02 2.8E 0 3.3E -1 (0) -2.8 - 3.9)E 0 ( 2.4 - 3.2)E 0 -3.7 - 5.7)E 0 (0/ 15) (0/ 2) (0/ 13)

Bi-214 (28) 2.1E 0 02 2.5E 0 2.5E 0 (0) -2.2 - 10.7)E 0 2.0 - 3.1)E 0 -3.8 - 10.5)E 0 (0/ 15) (0/ 2) (0/ 13)

Pb-214 (28) 1.2E -1 02 2.3E 0 1.9E 0 (0) -5.0 - 4.9)E 0 ( 2.0 - 2.6)E 0 -2.1 - 9.3)E 0 (0/ 15) (0/ 2) (0/ 13)

Ac-228 (28) 5.3E -4 02 7.2E 0 7.7E -1 (0) -6.6 - 9.0)E 0 ( 5.4 - 9.0)E 0 -7.9 - 7.0)E 0 (0/ 15) (0/ 2) (0/ 13)

Th-228 (28) 8.3E -1 02 2.8E 0 3.3E -1 (0) -2.8 - 3.9)E 0 2.4 - 3.2)E 0 -3.7 - 5.7)E 0 (0/ 15) (0/ 2) (0/ 13)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

3.5 Ground Water There is no requirement in the ODCM to collect ground water (WG) samples. For the year, quarterly ground water samples were collected when available from three locations. These samples were collected from the town water line (WG-01) supplied to the Site (by the Town of Seabrook), from an inactive well (WG-13) located approximately 1 km north of the plant, and from a private well 1.3 km NNW (WG-14). For 2011, a total of 12 samples were collected. All samples were analyzed for gross-beta activity, gamma-emitters and tritium.

Gross beta activity was detected in five of the twelve samples due to naturally occurring radium and its daughter products. The gross beta activity seen at all three locations is consistent with results from previous years of commercial operations. Figures 3.5 and 3.5.1 indicate the current year (2011) and the long-term measurement history for gross beta in well waters. No tritium or plant-related gamma emitters were detected in any of the ground water samples collected during the year. Table 3.5-1 identifies the results of the search for radionuclides of which two natural occurring were detected. The natural occurring radionuclides include K-40 (1 sample out of 12) and Pb-214 (6 samples out of 12) which is part of the Uranium-238 decay chain. No plant-related radionuclides were detected in any sample.

The dose potential to the public from drinking ground water is not evaluated due to the fact that plant-related radionuclides have not been detected. Therefore, no increasing or decreasing trends were observed. There is no impact to the public, through this pathway, from plant operations.

m The REMP Summary Table 3.5-1 list the range of analysis results by radionuclide for all ground water environmental samples. Attachment 1 to this report lists the individual analysis results for each measurement of ground water under the Sample Type code WG.

Any sample collection and analysis deviations from the ODCM required program, or reportable concentrations that may have occurred during the year are described in Section 5.

I FIGURE 3.5 GROSS-BETA MEASUREMENTS OF GROUND WATER SEABROOK STATION 19 17 15 13 11 CL 9 7

5 3

-1 Jan Feb Mar Apr May May Jun Jul Aug Sep Sep Oct Nov Dec Jan 2011

--D-WG-01 Seabrook Town Wells

-- K-WG-13 Seabrook Station Well No. 13 A--WG-14 Brimmer's Lane FIGURE 3.5.1 GROSS-BETA MEASUREMENTS OF GROUND WATER SEMI-ANNUAL AVERAGES SEABROOK STATION 20 20 15 15 0)

.90 10 5 5 0 1 . . . . . . . . . I. . I. . I Id 0 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

-X-WG-01 Seabrook Town Wells A--WG-14 Brimmer's Lane

-- D--WG-13 Seabrook Station Well No. 13 I

I I

I

Table 3.5-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Ground Water (WG) UNITS: pCi/k~q Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Re*quired Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

BETA (12) 4 4.1E 0 01 6.OE 0. NO DATA (0) -4.9 - 96.8)E -1 ( 2.2 - 9.7)E 0 (5/ 12) (2/ 4)

H-3 (12) 33000 3.3E 1 13 1.7E 2 NO DATA (0) -2.3 - 2.9)E 2 ( 2.4 - 28.5)E 1 (0/ 12) (0/ 4)

Be-7 (12) -5.2E 0 01 -9.5E -1 NO DATA (0) -1.7 - 0.4)E 1 -4.3 - 4.0)E 0 (0/ 12) (0/ 4)

K-40 (12) 3.3E 0 13 9.6E 0 NO DATA (0) ( -3.3 - 39.0)E 0 -2.4 - 39.0)E 0 (1/ 12) (1/ 4)

Cr-51 (12) 2.5E 0 14 3.1E 0 NO DATA (0) ( -7.3 - 14.6)E 0 -4.4 - 14.6)E 0 (0/ 12) (0/ 4)

Mn-54 (12) 15 -3.2E -1 14 -9.9E -3 NO DATA (0) ( -9.7 - 7.5)E -1 -9.7 - 7.5)E -1 (0/ 12) (0/ 4)

Co-57 (12) 1.4E -1 01 4.6E -1 NO DATA (0) ( -1.8 - 1.3)E 0 -3.5 - 12.6)E -1 (0/ 12) (0/ 4)

Co-58 (12) 15 -3.8E -1 13 -1.1E -1 NO DATA (0) ( -2.3 - 0.7)E 0 -6.0 - 2.6)E -1 (0/ 12) (0/ 4)

Fe-59 (12) 30 3.8E -1 14 6.7E -1 NO DATA (0) ( -1.7 - 1.8)E 0 -9.5 - 17.2)E -1 (0/ 12) (0/ 4)

Co-60 (12) 15 2.3E -1 01 8.7E -1 NO DATA (0) ( -1.0 - 1.9)E 0 ( 8.2 - 185.0)E -2 (0/ 12) (0/ 4)

Zn-65 (12) 30 -9.3E -1 14 -3.1E -1 NO DATA (0) ( -2.9 - 0.9)E 0 -2.8 - 0.9)E 0 (0/ 12) (0/ 4)

Se-75 (12) 2.7E -3 14 5.6E -1 NO DATA (0) -1.2 - 1.1)E 0 ( 7.6 - 113.0)E -2 (0/ 12) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

Table 3.5-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Ground Water (WG) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected-) (No. Detected-) (No. Detected**)

Nb-95 (12) 7.6E -1 2.6E 0 NO DATA (0) -2.1 - 7.7)E 0 -2.5 - 76.5)E -1 (0/ 12) (0/ 4)

Zr-95 (12) 15 -7.9E -1 -4.4E -1 NO DATA (0) -3.2 - 1.2)E 0 -2.1 - 0.8)E 0 (0/ 12) (0/ 4)

Ru-103 (12) -1.7E -1 2.8E -1 NO DATA (0) -2.1 - 1.7)E 0 -5.1 - 16.8)E -1 (0/ 12) (0/ 4)

Ru-106 (12) -1.3E 0 -4.5E -1 NO DATA (0) -8.7 - 5.2)E 0 -5.7 - 5.2)E 0 (0/ 12) (0/ 4)

Ag-108m (12) -4.OE -2 4.1E -1 NO DATA (0) -1.2 - 1.1)E 0 2.5 - 108.0)E -2 (0/ 12) (0/ 4)

Ag-ll0m (12) -1.OE 0 -5.2E -1 NO DATA (0) -6.9 - 0.4)E 0 -6.6 - -2.4)E -1 (0/ 12) (0/ 4)

Sb-124 (12) 5.8E -1 2.1E 0 NO DATA (0) -2.5 - 4.0)E 0 9.7 - 40.3)E -1 (0/ 12) (0/ 4)

Sb-125 (12) 6.2E -1 1.0E 0 NO DATA (0) -1.9 - 4.1)E 0 -2.4 - 253.0)E -2 (0/ 12) (0/ 4) 1-131 (12) 15 1.1E 0 1.5E 0 NO DATA (0) -1.5 - 4.4)E 0 -1.9 - 44.4)E -1 (0/ 12) (0/ 4)

Cs-134 (12) 15 5.8E -1 8.2E -1 NO DATA (0) -5.3 - 16.7)E -1 6.5 - 12.3)E -1 (0/ 12) (0/ 4)

Cs-137 (12) 18 -4.6E -1 5.1IE -1 NO DATA (0) -4.8 - 1.8)E 0 -1.7 - 18.2)E -1 (0/ 12) (0/ 4)

Ba-140 (12) 15 4.9E -1 13 1.2E 0 NO DATA (0) -1.9 - 2.1)E 0 1.4 - 20.8)E -1 (0/ 12) (0/ 4)

La-140 (12) 4.9E -1 13 1.2E 0 NO DATA (0) -1.9 - 2.1)E 0 1.4 - 20.8)E -1 (0/ 12) (0/ 4)

Ce-141 (12) -4.OE -1 13 4.1E -1 NO DATA (0) -4.2 - 5.0)E 0 -4.2 - 5.0)E 0 (0/ 12) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. >3 standard deviations with no uncertain identification) is shown in parentheses.

Table 3.5-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Ground Water (WG) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Ce-144 (12) -2.6E -1 01 2.4E 0 NO DATA (0) ( -1.0 - 0.5)E 1 -1.6 - 54.5)E -1 (0/ 12) (0/ 4)

Pb-212 (12) 7.2E -1 01 1.3E 0 NO DATA (0) ( -2.1 - 3.2)E 0 -4.8 - 31.6)E -1 (0/ 12) (0/ 4)

Bi-214 (12) 3.6E 1 14 8.6E 1 NO DATA (0) ( 2.1 - 2170.0)E 1 ( 2.2 - 21.7)E 1 (0/ 12) (0/ 4)

Pb-214 (12) 3.9E 1 14 9.4E 1 NO DATA (0) ( 1.3 - 245.0)E 0 2.1 - 24.5)E 1 (6/ 12) (4/ 4)

Ac-228 (12) -2.2E -1 14 3.6E 0 NO DATA (0) -7.8 - 5.7)E 0 1.7 - 5.7)E 0 (0/ 12) (0/ 4)

Th-228 (12) 7.2E -1 01 1.3E 0 NO DATA (0) -2.1 - 3.2)E 0 -4.8 - 31.6)E -1 (0/ 12) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

3.6 Sediment 3 Semiannual sediment sampling is required at one indicator location, although a total of five locations, three indicators and two controls, are collected. The indicator stations are comprised of two sets of beach sediment cores from Hampton Beach (SE-07) and Seabrook Beach (SE-08), plus one sub-tidal sediment I

core taken from near the discharge structure (SE-02). The control locations, both Plum Island Beach (SE-

57) and sub-tidal (SE-52), are located with Ipswich Bay. A total of 10 samples were collected for the year from all locations. All cores were analyzed as single or whole samples without segmenting. A gamma analysis was performed on each core.

Table 3.6-1 identifies the results of the search for radionuclides of which several natural occurring were detected. The natural occurring radionuclides include K-40 and nuclides of the Uranium-238 decay chain (Th-230, Ra-226, Pb-214 and Bi-214) and the Thorium-230 decay chain (Ac-228, Th-228, Pb-212, and TI-I 208). No plant-related radionuclides were detected in any segment. No increasing or decreasing trends were observed. This is consistent with the pre-operational program and with previous years of plant operations. There is no plant related dose to the public or impact to the environment from any pathways I

associated with this media.

The REMP Summary Table 3.6-1 list the range of analysis results by radionuclide for Indicator and Control Stations for the sediment environmental media. Attachment 1 to this report lists the individual analysis I

results for each segment measurement of sediment under the Sample Type code SE. n Any sample collection and analysis deviations from the ODCM required program, or reportable concentrations that may have occurred during the year are described in Section 5.

I Table 3.6-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Sediment (SE) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Be-7 (10) 7.2E 0 02 9.6E 1 -8.0OE -1 (0) ( -1.2 - 1.4)E 2 ( 5.0 - 14.3)E 1 -1.5 - 1.3)E 2 (0/ 6) (0/ 2) (0/ 4)

K-40 (10) 1.7E 4 08 2.1E 4 1.5E 4 (0) ( 1.4 - 2.3)E 4 ( 1.9 - 2.3)E 4 ( 1.3 - 1.9)E 4 (6/ 6) (2/ 2) (4/ 4)

Cr-51 (10) 3.8E 1 52 1.1E 2 1.0E 2 (0) ( -2.2 - 3.0)E 2 ( 6.3 - 15.2)E 1 2.2 - 17.7)E 1 (0/ 6) (0/ 2) (0/ 4)

Mn-54 (10) 2.3E 0 57 5.6E 0 -7.0E 0 (0) ( -2.9 - 3.2)E 1 -1.7 - 113.0)E -1 -4.3 - 1.1)E 1 (0/ 6) (0/ 2) (0/ 4)

Co-57 (10) 8.4E -1 07 9.4E 0 -6.8E 0 (0) ( -1.5 - 1.7)E 1 1.3 - 17.4)E 0 -1.4 - 0.5)E 1 (0/ 6) (0/ 2) (0/ 4)

Co-58 (10) -1.4E 1 57 -2.1IE 0 -1.4E 1 (0) -3.3 - 1.4)E 1 -4.7 - 0.5)E 0 -4.1 - 0.1)E 1 (0/ 6) (0/ 2) (0/ 4)

Fe-59 (10) 1.2E 0 08 5.6E 1 2.0E 1 (0) -8.8 - 5.6)E 1 5.6 - 5.6)E 1 -2.2 - 10.2)E 1 (0/ 6) (0/ 2) (0/ 4)

Co-60 (10) 6.8E 0 07 1.4E 1 -1.1E 1 (0) -2.0 - 2.0)E 1 7.6 - 20.2)E 0 -1.7 - 0.1)E 1 (0/ 6) (0/ 2) (0/ 4)

Zn-65 (10) -2.6E 1 52 1.4E 1 1.55E -1 (0) -1.3 - 0.1)E 2 -3.3 - 6.0)E 1 -4.6 - 6.0)E 1 (0/ 6) (0/ 2) (0/ 4)

Se-75 (10) 2.3E 0 57 1.2E 1 -1.5E 0 (0) -1.9 - 3.4)E 1 ( 4.6 - 19.9)E 0 -3.7 - 2.0)E 1 (0/ 6) (0/ 2) (0/ 4)

Nb-95 (10) 1.1E 1 02 2.2E 1 -6.2E 0 (0) -3.9 - 4.5)E 1 -1.5 - 45.1)E 0 -2.9 - 2.4)E 1 (0/ 6) (0/ 2) (0/ 4)

Zr-95 (10) -1.3E 1 02 3.4E 1 -4.5E 0 (0) -8.3 - 8.8)E 1 -2.0 - 8.8)E 1 -2.4 - 3.2)E 1 (0/ 6) (0/ 2) (0/ 4)

Ru-103 (10) -5.5E 0 07 1.5E 1 -1.5E -1 (0) -5.1 - 2.3)E 1 1.3 - 1.7)E 1 ( -2.5 - 3.1)E 1 (0/ 6) (0/ 2) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I Table 3.6-1 (Continued)

Radiological Environmental Monitoring Program Summary I

Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Sediment (SE) UNITS: pCi/ka I

Radionuclides Indicator Stations Mean Station Station With Highest Mean Mean Control Stations Mean I

(No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

I I

Ru-106 (10) 1.7E 0 07 4.3E 1 -1.3E 2 (0) -1.1 - 1.3)E 2 -3.9 - 12.5)E 1 -2.3 - -0.4)E 2 (0/ 6) (0/ 2) (0/ 4)

Ag-108m (10) -5.4E 0 52 2.OE -1 -4.9E 0 Ag-110m (0)

(10)

-1.2 - 0.3)E 1 2.7E 0 (0/ 6) 08

-1.6 - 1.6)E 1 1.8E 1 (0/ 2)

-2.4 - 1.6)E 1

-3.4E 0 (0/ 4)

I (0) -1.3 - 3.2)E 1 ( 3.5 - 32.1)E 0 -1.3 - 0.5)E 1 Sb-124 (10)

(0)

-7.3E 0 (0/ 6)

-1.1 - 0.7)E 2 52 2.5E 1 (0/ 2)

-9.4 - 60.2)E 0 1.1E 1 (0/ 4)

-9.4 - 60.2)E 0 I

(0/ 6) (0/ 2)

I (0/ 4)

Sb-125 (10) -1.4E 0 57 3.1E 1 6.9E 0 (0) -3.2 - 3.4)E 1 8.7 - 53.8)E 0 -8.4 - 5.4)E 1 (0/ 6) (0/ 2) (0/ 4) 1-131 (10)

(0) 4.4AE 1

-2.1 - 3.2)E 2 (0/ 6) 07 2.OE 2 7.8 - 32.0)E 1 (0/ 2) 5.2E 1

-1.3 - 2.6)E 2 (0/ 4)

I Cs-134 I

(10) 150 1.9E 1 52 3.7E 1 3.OE 1 (0) ( 0.0 - 5.0)E 1 0.0 - 7.3)E 1 0.0 - 7.3)E 1 (0/ 6) (0/ 2) (0/ 4)

Cs-137 (10) 180 -1.1E 1 57 -7.7E 0 -1.7E 1 Ba-140 (0)

(10)

( -3.7 - 1.0)E 1

-7.6E 1 (0/ 6) 52

-2.7 - 1.1)E 1 2.7E 1 (0/ 2)

-3.3 - 1.1)E 1 1.2E 1 (0/ 4) I (0) ( -2.3 - 0.3)E 2 -6.7 - 12.1)E 1 -6.7 - 12.1)E 1 La-140 (10)

(0)

-7.6E 1 (0/ 6)

( -2.3 - 0.3)E 2 52 2.7E 1 (0/ 2)

-6.7 - 12.1)E 1 1.2E 1

-6.7 (0/ 4)

- 12.1)E 1 I

(0/ 6)

I (0/ 2) (0/ 4)

Ce-141 (10) 1.OE 1 02 3.4E 1 8.9E 0 (0) ( -1.9 - 4.0)E 1 2.7 - 4.0)E 1 -2.8 - 20.0)E 0 (0/ 6) (0/ 2) (0/ 4)

Ce-144 (10)

(0)

-6.9E 0

( -1.1 - 1.3)E 2 (0/ 6) 57 1.6E 1

-5.1 - 37.7)E 0 (0/ 2)

-3.7E 1

-1.1 - 0.4)E 2 (0/ 4)

I I

Tl-208 (10) 2.8E 2 52 6.2E 2 4.OE 2 (0) ( 1.2 - 6.6)E 2 5.1 - 7.2)E 2 1.6 - 7.2)E 2 (6/ 6) (2/ 2) (4/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses Table 3.6-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Sediment (SE) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected*)

Pb-212 (10) 1.OE 3 02 2.2E 3 1.3E 3 (0) 3.2 - 27.0)E 2 1.7 - 2.7)E 3 ( 3.7 - 24.3)E 2 (6/ 6) (2/ 2) (4/ 4)

Bi-214 (10) 6.5E 2 52 1.3E 3 9.1E 2 (0) 2.8 - 15.5)E 2 1.1 - 1.6)E 3 ( 4.6 - 15.5)E 2 (4/ 6) (2/ 2) (4/ 4)

Pb-214 (10) 7.1E 2 52 1.5E 3 9.9E 2 (0) 3.1 - 17.9)E 2 1.3 - 1.7)E 3 ( 4.5 - 17.1)E 2 (6/ 6) (2/ 2) (4/ 4)

Ra-226 (10) 6.5E 2 52 1.3E 3 9.1E 2 (0) 2.8 - 15.5)E 2 1.1 - 1.6)E 3 ( 4.6 - 15.5)E 2 (4/ 6) (2/ 2) (4/ 4)

Ac-228 (10) 8.8E 2 52 2.OE 3 1.2E 3 (0) 2.9 - 22.5)E 2 1.4 - 2.6)E 3 ( 3.7 - 25.7)E 2 (5/ 6) (2/ 2) (4/ 4)

Th-228 (10) 1.OE 3 02 2.2E 3 1.3E 3 (0) 3.2 - 27.0)E 2 1.7 - 2.7)E 3 ( 3.7 - 24.3)E 2 (6/ 6) (2/ 2) (4/ 4)

Th-230 (10) 6.5E 2 52 1.3E 3 9.1E 2 (0) 2.8 - 15.5)E 2 1.1 - 1.6)E 3 ( 4.6 - 15.5)E 2 (4/ 6) (2/ 2) (4/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

3.7 Fish m Semiannual fish (FH) and invertebrate samples are required from two locations. The Program calls for samples to be collected semiannually. Quarterly collections are attempted to cover the sampling requirements. This section presents the results for fish sampling only. Invertebrate results may be found in Sections 3.8 and 3.9, entitled Lobsters and Shellfish, respectively.

During the year, a total of 10-fish samples were collected. The fish species available from Station FH-03 (indicator station) and Station FH-53 (control station) were dominated by Winter Flounder which are bottom dwelling species. One sample of Cunner fish was also collected from Station FH-03, as well as one sample of Longhorn Sculpin.

A gamma analysis was performed on the edible portion of each sample collected. In2011, the only radionuclides detected were natural occurring K-40 (all samples) and Pb-214 (1 sample out of 10), a member of the natural Uranium-238 decay chain. Table 3.7-1 summarizes the results for radionuclides in fish. Similar to past years, no plant-related radionuclides were detected in any samples. As a result, no increasing or decreasing trends were observed. Subsequently, there is no dose to the public or impact to the environment through this pathway due to plant operations. This is consistent with previous years ofI plant operations, as well as the pre-operational program.

Inaddition to the required program for fish as defined in the ODCM, the Station attempted to collect a local fish species (cunner fish) that resides in the upper regions of the water column using an alternate collection method from that used for the more prevalent bottom species. For 2011, one cunner sample was collected from the area of the plant's Hampton Bay discharge (FH-03) with the results listed in as laboratory number 286778001, 09/26/2011. No plant radionuclides were detected in the cunner fish sample, with only natural occurring K-40 being found.

I The result for the single sample represented by Longhorn Sculpin can be found in Attachment 1 as laboratory number 285107003, on 08/30/2011. Only natural occurring K-40 was detected in the sample. I The REMP Summary Table 3.7-1 also lists the range of analysis results by radionuclide for Indicator and Control Stations for all fish environmental media. Attachment 1 to this report lists the individual analysis results for each measurement of fish under the Sample Type code FH.

I Any sample collection and analysis deviations from the ODCM required program, or reportable concentrations that may have occurred during the year are described in Section 5.

Table 3.7-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Fish (FH) UNITS: pCi/kq Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Be-7 (10) -1. OE 0 3.4E 0 3.4E 0 (0) ( -3.3 - 3.7)E 1 -2.5 - 16.2)E 0 -2.5 - 16.2)E 0 (0/ 6) (0/ 4) (0/ 4)

K-40 (10) 3.4E 3 3.4E 3 3.4E 3 (0) ( 2.7 - 4.3)E 3 ( 3.0 - 3.7)E 3 ( 3.0 - 3.7)E 3 (6/ 6) (4/ 4) (4/ 4)

Cr-51 (10) -6.7E 0 1.8E 1 1.8E 1 (0) ( -5.7 - 4.6)E 1 -4.1 - 61.6)E 0 -4.1 - 61.6)E 0 (0/ 6) (0/ 4) (0/ 4)

Mn-54 (10) 130 4.9E -1 4.9E -1 -1.6E 0 (0) -1.5 - 5.6)E 0 -1.5 - 5.6)E 0 -4.5 - 1.5)E 0 (0/ 6) (0/ 6) (0/ 4)

Co-57 (10) 2.6E -1 7.1E -1 7.1E -1 (0) -2.0 - 4.6)E 0 -2.1 - 14.7)E -1 -2.1 - 14.7)E -1 (0/ 6) (0/ 4) (0/ 4)

Co-58 (10) 130 9.8E -1 9.8E -1 9.1E -1 (0) -4.3 - 6.7)E 0 -4.3 - 6.7)E 0 - -1.6 - 4.4)E 0 (0/ 6) (0/ 6) (0/ 4)

Fe-59 (10) 260 4.6E 0 4.6E 0 -9.7E 0 (0) -1.4 - 9.2)E 0 -1.4 - 9.2)E 0 -2.6 - -0.1)E 1 (0/ 6) (0/ 6) (0/ 4)

Co-60 (10) 130 -2.8E 0 1.OE 0 1.OE 0 (0) -1.7 - 0.2)E 1 ( -5.4 - 28.7)E -1 -5.4 - 28.7)E -1 (0/ 6) (0/ 4) (0/ 4)

Zn-65 (10) 260 6.9E -1 6.9E -1 -1.1E 1 (0) -3.5 - 5.3)E 0 ( -3.5 - 5.3)E 0 -1.5 - -0.5)E 1 (0/ 6) (0/ 6) (0/ 4)

Se-75 (10) -2.7E 0 -2.6E 0 -2.6E 0 (0) -1.6 - 0.4)E 1 -5.4 - -1.1)E 0 -5.4 - -1.1)E 0 (0/ 6) (0/ 4) (0/ 4)

Nb-95 (10) -1.3E 0 53 -3.OE -1 -3.OE -1 (0) ( -1.5 - 0.6)E 1 -2.9 - 2.3)E 0 -2.9 - 2.3)E 0 (0/ 6) (0/ 4) (0/ 4)

Zr-95 (10) -6.4E -1 53 4.OE 0 4.OE 0 (0) ( -8.6 - 4.7)E 0 -4.6 - 10.4)E 0 -4.6 - 10.4)E 0 (0/ 6) (0/ 4) (0/ 4)

Ru-103 (10) 2.5E 0 03 2.5E 0 -2.9E -1 (0) ( -1.3 - 16.2)E 0 -1.3 - 16.2)E 0 ( -5.6 - 4.5)E 0 (0/ 6) (0/ 6) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I Table 3.7-1 (Continued)

Radiological Environmental Monitoring Program Summary I

Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Fish (FH) UNITS: pCi/kq I

Radionuclides Indicator Stations Mean Station Station With Highest Mean Mean Control Stations Mean I

(No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

I Ru-106 (10)

(0)

-1.1E 1

-1.0 - 0.4)E 2 (0/ 6) 53 1.1E 1

-1.6 - 3.3)E 1 (0/ 4) 1.1E 1

-1.6 - 3.3)E 1 (0/ 4)

I Ag-108m (10) 1.OE -1 03 1.0E -1 -7.2E -2 Ag-ll0m (0)

(10)

-1.4 - 1.9)E 0

-3.5E -1 (0/ 6) 03

-1.4 - 1.9)E 0

-3.5E -1 (0/ 6)

-6.9 - 8.3)E -1

-2.5E 0 (0/ 4) I (0) -6.4 - 6.7)E 0 -6.4 - 6.7)E 0 -4.7 - 0.8)E 0 Sb-124 (10) 4.3E 0 (0/ 6) 03 4.3E 0 (0/ 6) 1.4E 0 (0/ 4)

I (0) -6.0 - 17.8)E 0 -6.0 - 17.8)E 0 -6.4 - 11.2)E 0 Sb-125 (10)

(0)

-3.OE 0 (0/ 6)

-1.0 - 0.1)E 1 53 4.8E -1 (0/ 6)

-5.7 - 3.6)E 0 4.8E -1 (0/ 4)

-5.7 - 3.6)E 0 I

(0/ 6) (0/ 4) (0/ 4) 1-131 (10)

(0)

-4.6E 0

-2.3 - 0.6)E 1 (0/ 6) 53 3.1E 0

-2.2 - 6.7)E 0 (0/ 4) 3.1E 0

-2.2 - 6.7)E 0 (0/ 4)

I Cs-134 (10)

(0) 130 1.5E 0

-6.4 - 12.3)E 0 (0/ 6) 03 1.5E 0

-6.4 - 12.3)E 0 (0/ 6)

-9.OE -1

-2.8 - 1.0)E 0 (0/ 4)

I Cs-137 (10) 150 1. 4E 0 03 1.4E 0 3.7E -1 Ba-140 (0)

(10)

-4.6 - 8.4)E 0 2.9E 0 (0/ 6) 03

-4.6 - 8.4)E 0 2.9E 0 (0/ 6)

( -2.5 - 2.0)E 0

-1.1E 0 (0/ 4) I (0) -4.8 - 8.4)E 0 -4.8 - 8.4)E 0 ( -1.1 - 1.7)E 1 La-140 (10) 2.9E 0 (0/ 6) 03 2.9E 0 (0/ 6)

-1.1E 0 (0/ 4)

I (0) ( -4.8 - 8.4)E 0 ( -4.8 - 8.4)E 0 ( -1.1 - 1.7)E 1 Ce-141 (10)

(0) 2.9E 0 (0/ 6)

( -1.7 - 2.0)E 1 53

(

5.OE 0 (0/ 6) 1.1 - 12.6)E 0 (

5.OE 0 (0/ 4) 1.1 - 12.6)E 0 I

(0/ 6) (0/ 4) (0/ 4)

Ce-144 (10)

(0)

-2.OE 0

-2.3 - 1.1)E 1 (0/ 6) 03 -2.OE 0

-2.3 - 1.1)E 1 (0/ 6)

-3.8E 0

( -1.6 - 0.5)E 1 (0/ 4)

I Tl-208 (10)

(0)

-9.2E

( -4.8 -

-1 4.7)E 0 (0/ 6) 53 1.8E 0 7.9 - 28.2)E -1 (0/ 4)

(

1.8E 0 7.9 - 28.2)E -1 (0/ 4)

I

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses. I Table 3.7-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Fish (FH) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Pb-212 (10) 3.2E 0 03 3.2E 0 2.3E -1 (0) ( -1.6 - 10.6)E 0 ( -1.6 - 10.6)E 0 ( -6.6 - 4.6)E 0 (0/ 6) (0/ 6) (0/ 4)

Bi-214 (10) 1.9E 0 53 1.2E 1 1.2E 1 (0) ( -1.2 - 1.5)E 1 ( -1.8 - 2.9)E 1 ( -1.8 - 2.9)E 1 (0/ 6) (0/ 4) (0/ 4)

Pb-214 (10) 3.0E 0 03 3.OE 0 2.6E 0 (0) ( -1.9 - 2.3)E 1 ( -1.9 - 2.3)E 1 ( -1.4 - 1.5)E 1 (0/ 6) (0/ 6) (1/ 4)

Ra-226 (10) 1.9E 0 53 1.2E 1 1.2E 1 (0) ( -1.2 - 1.5)E 1 ( -1.8 - 2.9)E 1 ( -1.8 - 2.9)E 1 (0/ 6) (0/ 4) (0/ 4)

Ac-228 (10) -6.5E -1 53 4.4E 0 4.4E 0 (0) -8.3 - 17.5)E 0 ( -1.3 - 3.0)E 1 ( -1.3 - 3.0)E 1 (0/ 6) (0/ 4) (0/ 4)

Th-228 (10) 3.2E 0 03 3.2E 0 2.3E -1 (0) -1.6 - 10.6)E 0 ( -1.6 - 10.6)E 0 ( -6.6 - 4.6)E 0 (0/ 6) (0/ 6) (0/ 4)

Th-230 (10) 1.9E 0 53 1.2E 1 1.2E 1 (0) -1.2 - 1.5)E 1 ( -1.8 - 2.9)E 1 ( -1.8 - 2.9)E 1 (0/ 6) (0/ 4) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

3.8 Lobsters Semiannual fish and invertebrate samples were required from two locations. This section provides the results I for one type of invertebrate - Homarus americanus (American lobsters) which is an important commercial food species from local waters. Samples were collected from two locations semiannually. Lobsters (HA) were collected from an indicator location near the discharge (HA-04) and from a control location (HA-54) within Ipswich Bay. A total of four samples were collected for the year. Fish and shellfish results may be found in Sections 3.7 and 3.9, respectively.

A gamma analysis was performed on each sample. The only radionuclide detected in lobster samples in 2011 was naturally occurring K-40 (all samples). Similar to past years, no plant-related radionuclides were detected in any sample. Therefore, no increasing or decreasing trends were observed. Consequently, there is no dose to the public or impact to the environment from this pathway due to plant operations. This is consistent with previous years as well as the pre-operational program.

The REMP Summary Table 3.8-1 also lists the range of analysis results by radionuclide for Indicator and Control Stations for all lobster samples. Attachment 1 to this report lists the individual analysis results for each measurement of lobsters under the Sample Type code HA.

Any sample collection and analysis deviations from the ODCM required program, or reportable concentrations that may have occurred during the year are described in Section 5.

I I

1 i

I I

i I

I

Table 3.8-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: American Lobster (HA) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected-) (No. Detected*-) (No. Detected**)

Be-7 (4) -1.4E 0 54 7.OE 0 7.OE 0 (0) -1.4 - 1.1)E 1 1.1 - 12.9)E 0 ( 1.1 - 12.9)E 0 (0/ 2) (0/ 2) (0/ 2)

K-40 (4) 2.2E 3 04 2.2E 3 2.1E 3 (0) ( 2.0 - 2.3)E 3 2.0 - 2.3)E 3 ( 1.8 - 2.3)E 3 (2/ 2) (2/ 2) (2/ 2)

Cr-51 (4) 1.4E 1 54 2.2E 1 2.2E 1 (0) -1.7 - 4.5)E 1 -2.9 - 7.4)E 1 -2.9 - 7.4)E 1 (0/ 2) (0/ 2) (0/ 2)

Mn-54 (4) 130 2.OE 0 04 2.OE 0 6.3E -1 (0) -2.3 - 405.0)E -2 -2.3 - 405.0)E -2 -1.2 - 2.4)E 0 (0/ 2) (0/ 2) (0/ 2)

Co-57 (4) 8.7E -1 54 1.1E 0 1.1E 0 (0) -5.3 - 22.8)E -1 -6.7 - 28.1)E -1 -6.7 - 28.1)E -1 (0/ 2) (0/ 2) (0/ 2)

Co-58 (4) 130 -5.4E 0 54 -1.1E 0 -1.1E 0 (0) -1.1 - 0.0)E 1 -1.5 - -0.8)E 0 -1.5 - -0.8)E 0 (0/ 2) (0/ 2) (0/ 2)

Fe-59 (4) 260 -7.7E 0 54 3.5E 0 3.5E 0 (0) -1.4 - -0.2)E 1 ( 2.2 - 4.7)E 0 2.2 - 4.7)E 0 (0/ 2) (0/ 2) (0/ 2)

Co-60 (4) 130 -2.6E 0 54 -2.0E 0 -2.0E 0 (0) -2.6 - -2.6)E 0 ( -3.6 - -0.4)E 0 -3.6 - -0.4)E 0 (0/ 2) (0/ 2) (0/ 2)

Zn-65 (4) 260 -3.2E 0 54 -1.1E 0 -1.1E 0 (0) -3.8 - -2.5)E 0 ( -8.7 - 6.6)E 0 -8.7 - 6.6)E 0 (0/ 2) (0/ 2) (0/ 2)

Se-75 (4) 6.OE -1 04 6.OE -1 -1.8E 0 (0) -3.3 - 4.5)E 0 ( -3.3 - 4.5)E 0 -2.1 - -1.4)E 0 (0/ 2) (0/ 2) (0/ 2)

Nb-95 (4) 7.OE 0 04 7.OE 0 9.1IE -1 (0) -1.3 - 15.2)E 0 ( -1.3 - 15.2)E 0 -3.6 - 5.4)E 0 (0/ 2) (0/ 2) (0/ 2)

Zr-95 (4) -4.8E 0 54 3.8E 0 3.8E 0 (0) -9.1 - -0.4)E 0 ( 1.5 - 6.1)E 0 ( 1.5 - 6.1)E 0 (0/ 2) (0/ 2) (0/ 2)

Ru-103 (4) -4.3E 0 54 1.7E -1 1.7E -1 (0) -5.9 - -2.6)E 0 ( -1.4 - 1.7)E 0 -1.4 - 1.7)E 0 (0/ 2) (0/ 2) (0/ 2)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I Table 3.8-1 (Continued)

Radiological Environmental Monitoring Program Summary I

Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: American Lobster (HA) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations U Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

I Ru-106 (4)

(0) 5.OE -3

-9.0 - 9.0)E 0 (0/ 2) 04 5.OE -3

( -9.0 - 9.0)E 0 (0/ 2)

-8.5E -1

( -1.6 - 1.4)E 1 (0/ 2)

I Ag-108m (4) 1.4E 0 04 1.4E 0 -9.1E -1 Ag-ll0m (0)

(4)

( 6.6 - 21.5)E -1

-2.6E 0 (0/ 2) 04

( 6.6 -

-2.6E 0 21.5)E -1 (0/ 2)

( -2.1 - 0.3)E 0

-1.9E 1 (0/ 2) I (0) -4.8 - -0.5)E 0 ( -4.8 I

- -0.5)E 0 -3.6 - -0.1)E 1 (0/ 2) (0/ 2) (0/ 2)

Sb-124 (4) -4.5E 0 54 -2.1E 0 -2.1E 0 (0) -6.5 - -2.5)E 0 ( -1.0 - 0.6)E 1 -1.0 - 0.6)E 1 Sb-125 (4)

(0)

-4.2E 0

-6.4 (0/

- -2.1)E 2) 0 54 6.8E 0

( -3.8 -

(0/ 2) 17.3)E 0 6.8E 0

-3.8 (0/ 2)

- 17.3)E 0 I

(0/ 2) (0/ 2) (0/ 2) 1-131 (4)

(0) 1.5E 0

-1.1 - 30.4)E -1 (0/ 2) 04 1.5E 0

( -1.1 - 30.4)E -1 (0/ 2)

-7.6E 0

-1.4 - -0.1)E 1 (0/ 2)

I Cs-134 (4)

(0) 130 2.7E -1

-1.7 - 2.2)E 0 (0/ 2) 04 2.7E -1

( -1.7 - 2.2)E 0 (0/ 2)

-2.2E 0

-3.6 - -0.7)E 0 (0/ 2)

I Cs-137 (4) 150 8.7E -1 04 8.7E -1 -8.7E -1 Ba-140 (0)

(4)

-9.9

-2.8E 1

- 27.2)E -1 (0/ 2) 54

-9.9

-1.4E 1

- 27.2)E -1 (0/ 2)

-1.7 - 0.0)E 0

-1.4E 1 (0/ 2) I (0)

I

-3.0 - -2.6)E 1 -2.6 - -0.2)E 1 -2.6 - -0.2)E 1 (0/ 2) (0/ 2) (0/ 2)

La-140 (4) -2.8E 1 54 -1.4E 1 -1.4E 1 (0) -3.0 - -2.6)E 1 -2.6 - -0.2)E 1 -2.6 - -0.2)E 1 Ce-141 (4)

(0)

-1.1E 1

-1.9 -

(0/

-0.3)E 2) 1 54 -8.2E 0

-1.5 -

(0/ 2)

-0.2)E 1

-8.2E 0

-1.5 -

(0/ 2)

-0.2)E 1 I

(0/ 2) (0/ 2) (0/ 2)

Ce-144 (4)

(0)

-4.3E 0

-5.5 - -3.2)E 0 (0/ 2) 54 3.7E 0

-2.6 - 10.1)E 0 (0/ 2) 3.7E 0

-2.6 - 10.1)E 0 (0/ 2)

I Tl-208 (4)

(0)

-1.9E 0

-4.5 - 0.7)E 0 (0/ 2) 54 -6.4E

-4.5

-1

- 3.2)E 0 (0/ 2)

-6.4E -1

-4.5 - 3.2)E 0 (0/ 2)

I

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

U I

Table 3.8-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: American Lobster (HA) UNITS: pCi/kq Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Pb-212 (4) -2.7E 0 54 1.6E 0 1.6E 0 (0) -1.0 - 0.5)E 1 -6.8 - 10.0)E 0 ( -6.8 - 10.0)E 0 (0/ 2) (0/ 2) (0/ 2)

Bi-214 (4) -7.8E 0 54 1.3E 0 1.3E 0 (0) -1.4 - -0.2)E 1 -8.8 - 11.5)E 0 ( -8.8 - 11.5)E 0 (0/ 2) (0/ 2) (0/ 2)

Pb-214 (4) -3.OE -2 04 -3.OE -2 -1.5E 1 (0) -8.1 - 8.1)E 0 -8.1 - 8.1)E 0 ( -2.7 - -0.3)E 1 (0/ 2) (0/ 2) (0/ 2)

Ra-226 (4) -7.8E 0 54 1.3E 0 1.3E 0 (0) -1.4 - -0.2)E 1 -8.8 - 11.5)E 0 ( -8.8 - 11.5)E 0 (0/ 2) (0/ 2) (0/ 2)

Ac-228 (4) 2.2E 0 04 2.2E 0 -2.2E 1 (0) -6.9 - 11.2)E 0 -6.9 - 11.2)E 0 -3.0 - -1.4)E 1 (0/ 2) (0/ 2) (0/ 2)

Th-228 (4) -2.7E 0 54 1.6E 0 1.6E 0 (0) -1.0 - 0.5)E 1 -6.8 - 10.0)E 0 -6.8 - 10.0)E 0 (0/ 2) (0/ 2) (0/ 2)

Th-230 (4) -7.8E 0 54 1.3E 0 1.3E 0 (0) -1.4 - -0.2)E 1 -8.8 - 11.5)E 0 ( -8.8 - 11.5)E 0 (0/ 2) (0/ 2) (0/ 2)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I 3.9 Shellfish Semiannual fish and invertebrate samples are required by the ODCM from two locations. This section i provides the results for shellfish (MU) samples only. In 2011, four locations (two indicators and two controls) were included in the sample collections. Fish and lobster results may be found in the Sections 3.7 and 3.8, entitled Fish and Lobsters, respectively. I During the year there were two species of mussels (MU) harvested for analysis. Modiolus (horse mussels) were collected, by divers, from near the discharge outfall (indicator station MU-06) and from Ipswich Bay (control MU-56). Mytilus (blue mussels) were collected from the intertidal areas of Seabrook Harbor (indicator MU-09) and between Plum Island and Ipswich, MA (control MU-59). A total of eight samples were collected in 2011 and analyzed for radioactivity in the edible portion or meat of the shellfish.

Additional analyses were conducted on the June and November shellfish collections from both indicator (MS-

06) and control (MS-56) locations where mussel shells (MS) were also analyzed for Strontium 89 and 90 (four samples) to see if there was any indication of strontium uptake into the shell. For 2011, no Sr-89/90 was detected in any sample. These analyses are not required by the REMP as defined in the ODCM.

The only radionuclides detected in shellfish samples in 2011 were naturally occurring K-40 (8 out of 8 edible portion samples) and Be-7 in one sample from a control station. Similar to past years, no plant-related gamma emitting radionuclides or Strontium were detected in any sample. Therefore, no increasing or decreasing I

trends were observed. Consequently, there is no dose to the public or impact to the environment from this pathway due to plant operations. This is consistent with the pre-operational program and with previous years of plant operations.

The REMP Summary Table 3.9-1 (mussel bodies) and Table 3.9-2 (mussel shells) list the range of analysis results by radionuclide for Indicator and Control Stations for all shellfish samples. Attachment 1 to this report lists the individual analysis results for each measurement of shellfish under the Sample Type code MU for the I

edible portions and MS for shells only.

Any sample collection and analysis deviations from the ODCM required program, or reportable concentrations I that may have occurred during the year, are described in Section 5.

I Table 3.9-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Mussel Body (MU) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected*) (No. Detected-) (No. Detected*)

Be-7 (8) 6.6E -1 59 9.7E 1 7.8E 1 (0) ( -2.2 - 3.2)E 1 ( 9.1 - 10.4)E 1 ( 3.4 - 10.4)E 1 (0/ 4) (0/ 2) (1/ 4)

K-40 (8) 1.1E 3 59 1.7E 3 1.5E 3 (0) ( 1.1 - 1.3)E 3 ( 1.6 - 1.8)E 3 ( 1.3 - 1.8)E 3 (4/ 4) (2/ 2) (4/ 4)

Cr-51 (8) 1.OE 1 06 1.8E 1 -2.3E 1 (0) ( -2.1 - 3.5)E 1 ( 2.4 - 351.0)E -1 ( -6.3 - 1.6)E 1 (0/ 4) (0/ 2) (0/ 4)

Mn-54 (8) 130 9.OE -1 59 4.6E 0 2.2E 0 (0) ( -1.9 - 3.7)E 0 ( 3.4 - 5.8)E 0 ( -8.8 - 57.6)E -1 (0/ 4) (0/ 2) (0/ 4)

Co-57 (8) -1.4E 0 09 1.OE 0 -2.1E 0 (0) ( -6.2 - 2.7)E 0 ( -6.7 - 27.0)E -1 -6.1 - 0.1)E 0 (0/ 4) (0/ 2) (0/ 4)

Co-58 (8) 130 1.9E 0 09 4.3E 0 8.3E -1 (0) ( -1.8 - 5.5)E 0 ( 3.0 - 5.5)E 0 -2.5 - 3.0)E 0 (0/ 4) (0/ 2) (0/ 4)

Fe-59 (8) 260 7.4E 0 09 1.5E 1 -7.4E -1 (0) ( -1.8 - 15.9)E 0 ( 1.3 - 1.6)E 1 -3.7 - 2.0)E 0 (0/ 4) (0/ 2) (0/ 4)

Co-60 (8) 130 5.5E -1 56 2.2E 0 2.1E 0 (0) ( -1.6 - 1.9)E 0 ( 4.9 - 40.0)E -1 -1.8 - 5.5)E 0 (0/ 4) (0/ 2) (0/ 4)

Zn-65 (8) 260 -6.1E 0 56 2.4E 0 -4.4E 0 (0) -1.3 - -0.1)E 1 (-3.2 - 7.9)E 0 -1.6 - 0.8)E 1 (0/ 4) (0/ 2) (0/ 4)

Se-75 (8) -3.5E 0 56 2.7E -1 1.2E -1 (0) -7.0 - -0.1)E 0 ( -8.0 - 13.4)E -1 -4.1 - 4.0)E 0 (0/ 4) (0/ 2) (0/ 4)

Nb-95 (8) 1.6E 0 06 4.8E 0 3.3E 0 (0) -6.8 - 7.6)E 0 ( 2.1 - 7.6)E 0 ( 8.1 - 71.0)E -1 (0/ 4) (0/ 2) (0/ 4)

Zr-95 (8) 6.4E 0 09 1.2E 1 2.6E 0 (0) ( 1.3 - 16.0)E 0 ( 7.1 - 16.0)E 0 -2.0 - 7.5)E 0 (0/ 4) (0/ 2) (0/ 4)

Ru-103 (8) -4.OE 0 59 4.5E 0 3.1E 0 (0) -1.4 - 0.2)E 1 ( -1.8 - 10.8)E 0 ( -1.8 - 10.8)E 0 (0/ 4) (0/ 2) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I Table 3.9-1 (Continued)

Radiological Environmental Monitoring Program Summary I

Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011) I MEDIUM: Mussel Body (MU) UNITS: pCi/kq Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

I Ru-106 (8)

(0)

-7.5E 0

-3.2 - 1.3)E 1 (0/ 4) 56

(

9.9E 0 9.9 - 188.0)E -1 (0/ 2) 5.5E 0

-1.7 - 2.0)E 1 (0/ 4)

I Ag-108m (8)

(0) 2.4E 0

-1.2 - 9.2)E 0 (0/ 4) 09 4.OE 0

-1.2 - 9.2)E 0 (0/ 2)

-1.2E 0

-2.9 - 0.9)E 0 (0/ 4)

I Ag-110m (8) -3.2E 0 06 1.7E -1 -i.oE 0 Sb-124 (0) -8.7

-2.3E 0

- 0.5)E 0 (0/ 4)

-2.0 - 5.5)E -1 (0/ 2)

-3.2 - 2.0)E 0 (0/ 4) I (8) 56 1.7E 0 -5.1E 0 Sb-125 (0)

(8)

-2.6 - 2.0)E 1 2.3E 0 (0/ 4) 09

-8.2 -

7.1E 0 41.3)E -1 (0/ 2)

-1.3 - 0.4)E 1 1.2E 0 (0/ 4) i (0) -6.2 - 9.1)E 0 5.2 - 9.1)E 0 -1.2 - 2.7)E 0 1-131 (8)

(0)

-2.OE

-6.8 1

(0/

- 0.1)E 1 4) 59

(

2.2E 1 (0/

6.8 - 37.4)E 0 2) 1.4E 1 (0/

-2.9 - 37.4)E 0 4)

I (0/ 4) (0/ 2) (0/ 4)

Cs-134 (8)

(0) 130 -1.OE -1

-3.1 - 1.9)E 0 (0/ 4) 56 3.3E 0 2.7 - 3.9)E 0 (0/ 2) 9.1E -1

-3.0 - 3.9)E 0 (0/ 4)

I Cs-137 (8)

(0) 150 2.6E -1

-7.8 - 5.2)E 0 (0/ 4) 06

(

4.1E 0 3.1 - 5.2)E 0 (0/ 2)

-1.9E 0

-1.2 - 0.5)E 1 (0/ 4)

I Ba-140 (8) -5.4E 0 56 I

3.2E 0 -5.0E 0 (0) -2.2 - 0.5)E 1 1.2 - 5.1)E 0 -1.7 - 0.5)E 1 (0/ 4) (0/ 2) (0/ 4)

Ba-140 (8) -5.4E 0 56 3.2E 0 -5.OE 0 Ce-141 (0)

(8)

( -2.2

-5.OE 0

- 0.5)E 1 (0/ 4) 56

( 1.2 - 5.1)E 0 7.6E -1 (0/ 2)

-1.7

-8.9E 0

- 0.5)E 1 (0/ 4)

I (0) ( -9.1 - 1.8)E 0 5.7 - 9.6)E -1 -4.5 - 0.8)E 1 Ce-144 (8)

(0)

-3.3E 0

( -2.1 (0/

- 1.5)E 1 4) 06 8.3E 0 (0/ 2) 1.8 - 14.8)E 0

-1.7E 0 (0/

-1.5 - 1.5)E 1 4)

I (0/ 4) (0/ 2) (0/ 4)

I T1-208 (8) 5.OE -1 59 1.2E 1 7.8E 0 (0) ( -4.0 - 3.2)E 0 6.5 - 18.0)E 0 1.3 - 18.0)E 0 (0/ 4) (0/. 2) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

I

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I Table 3.9-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Mussel Body (MU) UNITS: pCi/kq Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected*) (No. Detected**) (No. Detected**)

Pb-212 (8) 9.8E -1 59 1.8E 1 1.4E 1 (0) ( -4.9 - 5.9)E 0 ( 1.6 - 35.4)E 0 ( 1.6 - 35.4)E 0 (0/ 4) (0/ 2) (0/ 4)

Bi-214 (8) 6.2E -1 59 2.2E 1 1.8E 1 (0) ( -1.0 - 1.2)E 1 ( 6.1 - 37.7)E 0 6.1 - 37.7)E 0 (0/ 4) (0/ 2) (0/ 4)

Pb-214 (8) 7.9E 0 59 1.0E 1 8.1E 0 (0) ( 3.2 - 11.8)E 0 ( 8.1 - 12.5)E 0 2.7 - 12.5)E 0 (0/ 4) (0/ 2) (0/ 4)

Ra-226 (8) 6.2E -1 59 2.2E 1 1.8E 1 (0) ( -1.0 - 1.2)E 1 ( 6.1 - 37.7)E 0 6.1 - 37.7)E 0 (0/ 4) (0/ 2) (0/ 4)

Ac-228 (8) -5.2E 0 59 2.3E 1 1.9E 1 (0) ( -3.8 - 0.6)E 1 ( 1.9 - 2.8)E 1 1.5 - 2.8)E 1 (0/ 4) (0/ 2) (0/ 4)

Th-228 (8) 9.8E -1 59 1.8E 1 1.4E 1 (0) ( -4.9 - 5.9)E 0 ( 1.6 - 35.4)E 0 ( 1.6 - 35.4)E 0 (0/ 4) (0/ 2) (0/ 4) 6.2E -1 1.8E 1 Th-230 (8) 59 2.2E 1 (0) ( -1.0 - 1.2)E 1 ( 6.1 - 37.7)E 0 6.1 - 37.7)E 0 (0/ 4) (0/ 2) (0/ 4)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I Table 3.9-2 I

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

I MEDIUM: Mussel Shell (MS) UNITS: pCi/kq Indicator Stations Station With Highest Mean Control Stations I Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

I Sr-89 (4) -5.4E 1 06 -5.4E 1 -8.6E 1 Sr-90 (0)

(4)

( -1.9

-2.1E 1

- 0.8)E 2 (0/ 2) 56

-1.9 - 0.8)E 2 5.7E 1 (0/ 2)

-9.6 - -7.5)E 1 5.7E 1 (0/ 2) I I

(0) -5.5 - 1.3)E 1 ( 1.0 - 113.0)E 0 ( 1.0 - 113.0)E 0 (0/ 2) (0/ 2) (0/ 2)

I I

I Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

I

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I I

I 3.10 Irish Moss There is no REMP technical requirement defined in the ODCM to collect Irish Moss (algae) samples. As a supplement to the required REMP, semiannual Chondrus (Irish Moss) samples were collected from an indicator area near plant discharge (AL-05) and a control location (AL-55) within lpswich Bay. If plant-related radionuclides were re-concentrating in the aquatic environment, an early indication of this may be shown in this type of environmental species. Four routine samples (two indicators and two controls) were collected for the year.

A gamma analysis was performed on each sample. Naturally occurring K-40 was detected in all samples for both indicator and control stations. Other natural occurring radionuclides detected include Be-7 (3 out of 4 samples) and Th-228 (1 out of 4 samples). Similar to past years, no plant-related radionuclides were detected in any sample from either the indicator or control stations. Therefore, no plant-related increasing or decreasing trends were observed. Subsequently, there is no dose or impact to the environment through this pathway due to plant operations. This is consistent with the pre-operational program and with previous years of' plant operations.

The REMP Summary Table 3.10-1 list the range of analysis results by radionuclide for Indicator and Control Stations for all Irish Moss (or seaweed) samples. Attachment 1 lists the individual analysis results for each measurement of Irish Moss under the Sample Type code AL.

Any sample collection and analysis deviations from the ODCM defined program, or reportable concentrations that may have occurred during the year, are described in Section 5.

I Table 3.10-1 Radiological Environmental Monitoring Program Summary I

Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Irish Moss (AL) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected-) (No. Detected**)

I Be-7 (4)

(0) (

1.9E 2 1.7 - 2.1)E 2 (1/ 2) 55

(

3.66E 2 2.5 - 4.8)E 2 (2/ 2)

(

3.66E 2 2.5 - 4.8)E 2 (2/ 2)

I K-40 (4) 7.8E 3 05 7.8E 3 6.2E 3 Cr-51 (0)

(4)

( 5.9 - 9.8)E 3

-5.6E 0 (2/ 2) 55

( 5.9 - 9.8)E 3 4.1E 0 (2/ 2)

( 5.2 - 7.2)E 3 4.1E 0 (2/ 2) I (0) -1.6 - 0.5)E 1 -4.6 - 12.8)E 0 -4.6 - 12.8)E 0 Mn-54 (4)

(0) 130 -1.2E 0 (0/ 2)

-3.2 - 0.7)E 0 05 -1.2E 0 (0/ 2)

-3.2 - 0.7)E 0

-1.8E 0 (0/ 2)

-4.5 - 0.9)E 0 I

I (0/ 2) (0/ 2) (0/ 2)

Co-57 (4) -1.4E 0 55 1.5E 0 1.5E 0 (0) -2.1 - -0.7)E 0 ( 6.6 - 24.1)E -1 6.6 - 24.1)E -1 (0/ 2) (0/ 2) (0/ 2)

Co-58 (4)

(0) 130 1.99E 0

-1.3 - 5.2)E 0 (0/ 2) 05 1.9E 0

-1.3 - 5.2)E 0 (0/ 2)

-1.2E 0

-2.3 - -0.1)E 0 (0/ 2)

I Fe-59 (4)

(0) 260 -1.3E 0

-1.8 - -0.8)E 0 (0/ 2) 55 9.7E 0 6.0 - 13.3)E 0 (0/ 2) 9.7E 0 6.0 - 13.3)E 0 (0/ 2)

I Co-60 (4) 130 -1.5E 0 05 -1.5E 0 -5.4E 0 Zn-65 (0)

(4) 260

-4.0 - 1.1)E 0

-1.7E 1 (0/ 2) 55

-4.0 - 1.1)E 0 1.2E 0 (0/ 2)

-1.1 - 0.0)E 1 1.2E 0 (0/ 2) I (0) -2.9 - -0.5)E 1 -1.4 - 1.6)E 1 -1.4 - 1.6)E 1 Se-75 (4)

(0) (

9.4E 0 (0/ 2) 1.0 - 17.7)E 0 05 9.4E 0 (0/ 2) 1.0 - 17.7)E 0 7.4E -1 (0/ 2)

-1.2 - 2.7)E 0 I

I (0/ 2) (0/ 2) (0/ 2)

Nb-95 (4) 7.1E 0 05 7.1E 0 -4.OE -1 (0) ( 4.6 - 9.6)E 0 4.6 - 9.6)E 0 -8.7 - 7.9)E 0 (0/ 2) (0/ 2) (0/ 2)

Zr-95 (4)

(0) (

7.0E 0 5.7 - 135.0)E -1 (0/ 2) 05 7.OE 0 5.7 - 135.0)E (0/ 2)

-1 6.4E 0 6.1 - 6.6)E 0 (0/ 2)

I Ru-103 (4)

(0) 3.4E 0

-2.2 - 70.0)E -1 (0/ 2) 05 3.4E 0

-2.2 - 70.0)E -1 (0/ 2)

-4.1IE 0

-5.5 - -2.7)E 0 (0/ 2)

I

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

I

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I Table 3.10-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Irish Moss (AL) UNITS: pCi/ka Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected*) (No. Detected-) (No. Detected**)

Ru-106 (4) 1.4E 1 05 1.4E 1 -1.4E 1 (0) 5.1 - 22.7)E 0 5.1 - 22.7)E 0 -4.5 - 1.8)E 1 (0/ 2) (0/ 2) (0/ 2)

Ag-108m (4) -3.6Z 0 05 -3.6E 0 -4.5E 0 (0) -5.1 - -2.0)E 0 -5.1 - -2.0)E 0 -8.2 - -0.7)E 0 (0/ 2) (0/ 2) (0/ 2)

Ag-110m (4) 8.5E -1 05 8.5E -1 -5.2E -1 (0) -3.8 - 5.5)E 0 -3.8 - 5.5)E 0 -1.5 - 0.4)E 0 (0/ 2) (0/ 2) (0/ 2)

Sb-124 (4) -1.3E 1 55 -2.5E 0 -2.5E 0 (0) -2.4 - -0.2)E 1 -3.7 - -1.3)E 0 -3.7 - -1.3)E 0 (0/ 2) (0/ 2) (0/ 2)

Sb-125 (4) -1.0Z 0 05 -1.0E 0 -8.2E 0 (0) -6.5 - 4.6)E 0 -6.5 - 4.6)E 0 -1.6 - -0.1)E 1 (0/ 2) (0/ 2) (0/ 2) 1-131 (4) 2.8E 1 05 2.8Z 1 2.7K 1 (0) 1.2 - 4.4)E 1 1.2 - 4.4)E 1 1.2 - 4.1)E 1 (0/ 2) (0/ 2) (0/ 2)

Cs-134 (4) 130 1.OE -2 55 2.6E 0 2.6E 0 (0) -3.8 - 3.8)E 0 -2.9 - 8.0)E 0 -2.9 - 8.0)E 0 (0/ 2) (0/ 2) (0/ 2)

Cs-137 (4) 150 9.8E 0 05 9.8K 0 -2.7E 0 (0) 3.2 - 16.4)E 0 3.2 - 16.4)E 0 -9.0 - 3.6)E 0 (0/ 2) (0/ 2) (0/ 2)

Ba-140 (4) 1.8E 1 05 1.8E 1 -4.9K -1 (0) 1.4 - 35.1)E 0 1.4 - 35.1)E 0 -5.4 - 4.4)E 0 (0/ 2) (0/ 2) (0/ 2)

La-140 (4) 1.8E 1 05 1.8E 1 -4.9E -1 (0) 1.4 - 35.1)E 0 1.4 - 35.1)E 0 -5.4 - 4.4)E 0 (0/ 2) (0/ 2) (0/ 2)

Ce-141 (4) 6.2E 0 05 6.2E 0 3.1E 0 (0) 4.2 - 8.2)E 0 4.2 - 8.2)E 0 2.8 - 3.4)E 0 (0/ 2) (0/ 2) (0/ 2)

Ce-144 (4) 4.3E 0 55 6.7E 0 6.7E 0 (0) -1.7 - 2.5)E 1 -1.9 - 3.3)E 1 -1.9 - 3.3)E 1 (0/ 2) (0/ 2) (0/ 2)

Tl-208 (2) 1.1E -1 55 6.5E 0 6.5E 0 (0)

(0/ 1) (0/ 1) (0/ 1)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

Table 3.10-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Irish Moss (AL) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Pb-212 (2) 2.1E 1 55 2.2E 1 2.2E 1 (0)

(0/ 1) (0/ 1) (0/ 1)

Bi-214 (2) -7.1E 0 55 3.5E -2 3.5E -2 (0)

(0/ 1) (0/ 1) (0/ 1)

Pb-214 (2) -1.8E 1 55 -4.5E 0 -4.5E 0 (0)

(0/ 1) (0/ 1) (0/ 1)

Ra-226 (2) -7. 1E 0 55 3.5E -2 3.5E -2 (0)

(0/ 1) (0/ 1) (0/ 1)

Ac-228 (4) 2.2E 1 55 2.6E 1 2. 6E 1 (0) ( 2.1 - 2.4)E 1 ( 1.8 - 3.3)E 1 1.8 - 3.3)E 1 (0/ 2) (0/ 2) (0/ 2)

Th-228 (4) 1.7E 1 55 2.6E 1 2. 6E 1

( (

(0) 1.3 - 2.1)E 1 2.2 - 3.0)E 1 2.2 - 3.0)E 1 (0/ 2) (1/ 2) (1/ 2)

Th-230 (2) -7. 1E 0 55 3.5E -2 3.5E -2 (0)

(0/ 1) (0/ 1) (0/ 1)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

3.11 Food Crop There is no requirement for food crop or vegetation samples as long as the required milk locations are available. As noted in Section 3.3, milk sampling at the minimum required number of locations in 2011 was not possible due to the limited inventory of milk animal sites in the plant vicinity. To compensate for this, vegetation samples were collected as part of the REMP. Section 3.12 describes the alternate broad leafy vegetation (TG) collections.

In addition to the broad leafy vegetation sampling, nine food crop (TF) samples were collected from three locations listed on Table 2.0-2 (two indicator stations, TF-02 and TF-03, and one control station, TF-06) during the growing season months (June, July and August). These included strawberries in June (Lab numbers 280312001, 2, & 3 ), tomatoes in July (Lab numbers 283014001, 2, &3) and a second set of tomatoes in August (Lab numbers 284902001, 2, &3).

A gamma analysis was performed on each sample. Naturally occurring K-40 was detected in all samples for both indicator and control stations. The only other natural occurring radionuclide detected was Be-7 (3 out of 9 samples). Similar to past years, no plant-related radionuclides were detected in any samples. Therefore, no increasing or decreasing trends are identified. Subsequently, there is no dose to the public or impact on the environment through this pathway due to plant operations. This is consistent with the pre-operational program and with previous years of plant operations.

The following REMP Summary (Table 3.11-1) lists the range of analysis results by radionuclide for indicator and control stations for the Food Crop environmental media. Attachment 1 to this report lists the individual analysis results for each measurement of Food Crops under the Sample Type code TF.

Any sample collection and analysis deviations from the ODCM defined program, or reportable concentrations that may have occurred during the year, are described in Section 5.

I Table 3.11-1 Radiological Environmental Monitoring Program Summary I

Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Food Crop (TF) UNITS: pCi/kg Indicator Stations Station With Highest Mean Control Stations I Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected-)

Be-7 (9)

(0) (

2.5E 1

-1.5 - 8.5)E 1 03 2.9E 1

-1.0 - 8.5)E 1 2.7E 1

-6.0 - 70.3)E 0 I

K-40 (9)

(0) (

1.9E 3 (2/

1.3 - 2.6)E 3 6) 02

(

2.OE 3 (1/

1.3 - 2.6)E 3 3)

(

1.6E 3 (1/ 3) 9.7 - 23.3)E 2 I

(6/ 6) (3/ 3) (3/ 3)

Cr-51 (9)

(0)

-6.8E 0

( -2.8 - 0.4)E 1 06 -2.6E 0

-1.8 - 0.7)E 1

-2.6E 0

-1.8 - 0.7)E 1 I

(0/ 6) (0/ 3) (0/ 3)

Mn-54 (9)

(0)

-3.7E -1

( -1.3 - 0.3)E 0 (0/ 6) 06 -1.8E -1

-1.7 - 1.4)E 0 (0/ 3)

-1.8E -1

-1.7 - 1.4)E 0 (0/ 3)

I I

Co-57 (9) -5.5E -1 06 3.5E -1 3.5E -1 (0) (-1.6 - 0.4)E 0 6.1 - 719.0)E -3 6.1 - 719.0)E -3 (0/ 6) (0/ 3) (0/ 3)

Co-58 (9) -7.3E -1 06 8.6E -1 8.6E -1 Fe-59 (0)

(9)

( -3.5 - 2.7)E 0

-4.OE -1 (0/ 6) 02

-2.9 - 20.8)E -1 5.6E -1 (0/ 3)

-2.9 - 20.8)E -1

-9.3E -1 (0/ 3) i (0) ( -5.2 - 4.5)E 0 -5.2 - 4.5)E 0 -2.5 - 0.3)E 0 Co-60 (9)

(0) 4.OE -1 (0/ 6)

( -3.1 - 2.3)E 0 02 1.OE 0

-1.5 (0/

- 2.3)E 0 3) 2.8E -1

-3.8 (0/

- 8.6)E -1 3)

I (0/ 6) (0/ 3) (0/ 3)

Zn-65 (9)

(0)

-3.6E 0

( -6.5 - 0.6)E 0 06 -1.9E 0

-6.3 - 1.2)E 0

-1.9E 0

-6.3 - 1.2)E 0 I

(0/ 6) (0/ 3) (0/ 3)

Se-75 (9)

(0)

-9.8E -1

( -2.2 - 0.7)E 0 (0/ 6) 06 4.1E -1

-8.5 - 13.8)E (0/ 3)

-1 4.1E -1

-8.5 - 13.8)E -1 (0/ 3)

I Nb-95 (9)

(0) 9.1E -1

( -7.9 - 30.9)E -1 (0/ 6) 06 1.4E 0 2.2 - 31.4)E -1 (0/ 3) 1.4E 0 2.2 - 31.4)E -1 (0/ 3) I Zr-95 (9) 3.5E -1 02 9.8E -1 5.2E -1 Ru-103 (0)

(9)

( -2.4 - 3.0)E 0

-8.9E -1 (0/ 6) 02 3.8

-8.OE

- 161.0)E

-1 (0/ 3)

-2 -1.4

-9.OE

- 2.1)E 0

-1 (0/ 3) I (0) ( -1.8 - 0.8)E 0 ( -1.8 - 0.8)E 0 -9.8 - -7.8)E -1 (0/ 6) (0/ 3) (0/ 3)

I

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

Table 3.11-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Food Crop (TF) UNITS: pCilkq Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Ru-106 (9) -2.5E 0 03 5.4E 0 -3.5E 0 (0) -1.9 - 1.5)E 1 ( -1.0 - 15.3)E 0 ( -9.6 -. 5..2)E 0 (0/ 6) (0/ 3) (0/ 3)

Ag-108m (9) -1.1E 0 03 -8.8E -1 -1.1E 0 (0) -5.0 - 0.9)E 0 ( -2.8 - 0.6)E 0 ( '-1.9 - -0.3)E 0 (0/ 6) (0/ 3) (0/ 3)

Ag-110m (9) -3.3E 0 06 9.7E -2 9.7E -2 (0) -1.6 - 0.2)E 1 ( -4.0 - 20.0)E -2 ( -4.0 - 20.0)E -2 (0/ 6) (0/ 3) (0/ 3)

Sb-124 (9) -7.9E -1 02 2.2E -1 6.9E -2 (0) -7.6 - 12.7)E 0 -7.6 - 12.7)E 0 ( -2.8 - 2.5)E 0 (0/ 6) (0/ 3) (0/ 3)

Sb-125 (9) 2.1E -1 02 2.OE 0 2.8E -1 (0) -4.0 - 8.6)E 0 -1.4 - 8.6)E 0 ( -1.2 - 1.2)E 0 (0/ 6) (0/ 3) (0/ 3) 1-131 (9) 60 -9.3E -2 02 4.4E -1 -2.1E -1 (0) -2.7 - 2.3)E 0 -2.0 - 2.3)E 0 -2.3 - 1.1)E 0 (0/ 6) (0/ 3) (0/ 3)

Cs-134 (9) 60 -1.1E 0 03 8.9E -1 -2.1E 0 (0) -8.3 - 3.4)E 0 -7.8 - 33.8)E -1 -4.0 - -0.6)E 0 (0/ 6) (0/ 3) (0/ 3)

Cs-137 (9) 80 1.3E 0 02 2.3E 0 2.3E -1 (0) -1.0 - 6.0)E 0 2.4 - 59.9)E -1 -3.5 - 9.8)E -1 (0/ 6) (0/ 3) (0/ 3)

Ba-140 (9) -7.6E -1 02 -5.7E -1 -5.8E -1 (0) -3.3 - 2.0)E 0 -3.3 - 2.0)E 0 -3.2 - 1.6)E 0 (0/ 6) (0/ 3) (0/ 3)

La-140 (9) -7.6E -1 02 -5.7E -1 -5.8E -1 (0) -3.3 - 2.0)E 0 -3.3 - 2.0)E 0 -3.2 - 1.6)E 0 (0/ 6) (0/ 3) (0/ 3)

Ce-141 (9) -2.4E 0 06 6.6E -1 6.6E -1 (0) -9.8 - 4.2)E 0 -2.6 - 3.2)E 0 -2.6 - 3.2)E 0 (0/ 6) (0/ 3) (0/ 3)

Ce-144 (9) -1.3E 0 03 3.8E 0 3.OE -1 (0) -1.7 - 1.2)E 1 -5.9 - 11.5)E 0 -5.8 - 6.1)E 0 (0/ 6) (0/ 3) (0/ 3)

Ac-228 (9) 2.5E 0 03 6.2E 0 -7.3E 0 (0) -1.1 - 1.0)E 1 ( 1.7 - 10.4)E 0 ( -1.4 - 0.0)E 1 (0/ 6) (0/ 3) (0/ 3) 1.2E 0 Th-228 (9) 1.6E -1 06 1.2E 0 (0) -6.7 - 7.4)E 0 ( 1.3 - 34.2)E -1 ( 1.3 - 34.2)E -1 (0/ 6) (0/ 3) (0/ 3)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

3.12 Vegetation m In lieu of milk sampling, the ODCM, Table A.9.1-1, requires broad leafy vegetation (TG) samples grown in the nearest of two different offsite locations with the highest D/Q, and one control location 15-30 km distant in the least prevalent wind direction, be collected when available (growing season). Offsite I

locations are defined in the UFSAR, as the land beyond a 3000-foot radius of the two Containment Building centerlines. The analysis of garden locations in the Land Use Census provides a ranking of potential sampling sites for use in determining sampling locations in the general population. Since sampling of three different types of broad leaf garden vegetables at high D/Q locations is not feasible due to uncertain availability, other types of broad leafy vegetation were utilized.

Two locations at the site boundary with a maximum D/Q (higher values than determined in the 2011 Land Use Census garden listing) were selected over ranked D/Q gardens in the general population. These two Indicator locations (TG-08 and TG-09) are on site property in areas with available sample media. Athird far field control location (TG-10) was selected in Georgetown, MA. Sampling tree leaves as broad leaf vegetation at the selected locations provides increased reliability for sample availability. For 2011, a total I

of 20 monthly (growing season) broad leaf vegetation samples were collected and analyzed by gamma spectroscopy.

A gamma analysis was performed on each sample. Naturally occurring K-40 and Be-7 were detected in all samples for both indicator and control stations. The only other natural occurring radionuclides detected were Ac-228 and Th-228 (2 out of 20 samples). Dissimilar to past years, fission product related Cs-1 37 was detected positive in 6 of the 20 samples (all from control location TG-1 0). The presence of Cs-1 37 in I

this media prompted a detailed evaluation as to the likely source. Section 3.14 describes the assessment of Cs-1 37 in broad leaf vegetation, as well as other fission product related radionuclides detected in other media during the same time frame of 2011. The conclusion of the assessment was that fallout from the March 11, 2011 Fukushima Daiichi accident in Japan lead to detectable levels of Cs-137 being deposited on the surface of leafy vegetation in the northeast United States. Utilizing the results of broad leaf vegetation sampling for broad leaf food products, itis concluded that there was no dose impact to the public or on the environment through this food ingestion pathway from Seabrook plant operations.

I The following REMP Summary (Table 3.12-1) lists the range of analysis results by radionuclide for indicator and control stations for the broad leaf vegetation environmental media. Attachment 1 to this report lists the individual analysis results for each measurement of broad leaf vegetation under the Sample Type code TG.

Any sample collection and analysis deviations from the ODCM required program, or reportable concentrations that may have occurred during the year, are described in Section 5.

I Table 3.12-1 Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Vegetation (TG) UNITS: pCi/kCq Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Be-7 (20) 1.5E 3 10 1.7E 3 1.7E 3 (0) 8.5 - 39.7)E 2 5.9 - 31.7)E 2 ( 5.9 - 31.7)E 2 (12/ 12) (8/ 8) (8/ 8)

K-40 (20) 3.5E 3 3.5E 3 3.1E 3 (0) 3.0 - 4.1)E 3 3.0 - 4.1)E 3 ( 2.4 - 3.7)E 3 (12/ 12) (6/ 6) (8/ 8)

Cr-51 (20) 9.6E 0 4.5E 1 4.5E 1 (0) -4.0 -. 5.4)E 1 -3.1 - 23.8)E 1 -3.1 - 23.8)E 1 (0/ 12) (0/ 8) (0/ 8)

Mn-54 (20) 1.3E 0 1.5E 0 2.8E -1 (0) -4.7 - 8.5)E 0 -2.2 - 4.4)E 0 -4.1 - 11.3)E 0 (0/ 12) (0/ 6) (0/ 8)

Co-57 (20) 2.1E -1 4.9E -1 2.2E -1 (0) -4.2 - 3.5)E 0 -2.6 - 2.2)E 0 -3.9 - 3.9)E 0 (0/ 12) (0/ 6) (0/ 8)

Co-58 (20) -1.2E 0 9.9E -1 9.9E -1 (0) -8.0 - 2.0)E 0 -7.4 - 5.4)E 0 -7.4 - 5.4)E 0 (0/ 12) (0/ 8) (0/ 8)

Fe-59 (20) -3.3E 0 4.4E 0 4.4E 0 (0) -1.5 - 0.8)E 1 -6.8 - 17.3)E 0 -6.8 - 17.3)E 0 (0/ 12) (0/ 8) (0/ 8)

Co-60 (20) -6.OE -1 1.OE 0 -4.3E -1 (0) -1.5 - 0.5)E 1 -6.0 - 3.8)E 0 -6.4 - 4.3)E 0 (0/ 12) (0/ 6) (0/ 8)

Zn-65 (20) -4.2E 0 -2.2E 0 -3.6E 0 (0) -1.9 - 1.6)E 1 -1.9 - 1.1)E 1 -2.1 - 0.4)E 1 (0/ 12) (0/ 6) (0/ 8)

Se-75 (20) -7.OE -1 -6.4E -1 -6.6E -1 (0) ( -5.9 - 2.3)E 0 -3.5 - 1.8)E 0 ( -6.6 - 4.8)E 0 (0/ 12) (0/ 6) (0/ 8)

Nb-95 (20) 7.4E -1 1.OE 0- -1.1E 0 (0) ( -8.5 - 5.5)E 0 -8.5 - 4.9)E 0 ( -7.9 - 7.3)E 0 (0/ 12) (0/ 6) (0/ 8)

Zr-95 (20) 4.8E -1 9.3E -1 9.3E -1 (0) ( -6.1 - 6.0)E 0 -1.4 - 1.1)E 1 -1.4 - 1.1)E 1 (0/ 12) (0/ 8) (0/ 8)

Ru-103 (20) -1.9E 0 5.5E -1 5.5E -1 (0) -8.4 - 1.7)E 0 -7.2 - 12.7)E 0 -7.2 - 12.7)E 0 (0/ 12) (0/ 8) (0/ 8)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

I Table 3.12-1 (Continued)

Radiological Environmental Monitoring Program Summary I

Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Vegetation (TG) UNITS: pCi/kq Indicator Stations Station With Highest Mean Control Stations I Radionuclides Mean Station Mean Mean (No. Analyses)

(Non-Routine*)

Required LLD Range (No. Detected**)

Range (No. Detected**)

I Ru-106 (20)

(0)

-6.7E 0

-4.8 - 5.8)E 1 10 9.2E 0

-4.7 - 5.8)E 1 9.2E 0

( -4.7 - 5.8)E 1 I

(0/ (0/

I (0/ 12) 8) 8)

Ag-108m (20) -1.3E 0 10 3.7E -1 3.7E -1 (0) -5.7 - 1.6)E 0 -4.2 - 6.0)E 0 ( -4.2 - 6.0)E 0 (0/ 12) (0/ 8) (0/ 8)

Ag-ll0m (20)

(0)

-2.8E 0

-1.4 - 0.3)E 1 (0/ 12) 10 -5.2E -1

-1.4 - 0.4)E 1 (0/ 8)

-5.2E -1

( -1.4 - 0.4)E 1 (0/ 8)

I Sb-124 (20)

(0)

-2.OE 0

-1.0 - 1.2)E 1 (0/ 12) 10 6.2E 0

-8.1 - 24.4)E 0 (0/ 8) 6.2E 0

-8.1 - 24.4)E 0 (0/ 8)

I Sb-125 (20) 4.0E 0 09 4.1E 0 -9.0E -1 1-131 (0)

(20) 60

-1.2 - 2.0)E 1

-1.1E 0 (0/ 12) 10

-3.4 - 12.7)E 0 7.6E 2 (0/ 6)

-7.8 - 12.9)E 0 7.6E 2 (0/ 8) I (0) -4.9 - 1.6)E 1 -6.9 - 68.2)E 2 -6.9 - 68.2)E 2 Cs-134 (20)

(0) 60 5.4E 0 (0/ 12)

-2.3 - 16.2)E 0 09 5.4E 0 (0/ 8)

-7.7 - 162.0)E -1 3.OE 0 (0/

-6.1 - 7.4)E 0 8)

I (0/ 6)

I (0/ 12) (0/ 8)

Cs-137 (20) 80 1.9E 0 10 3.6E 1 3.6E 1 (0) -6.0 - 12.1)E 0 ( 5.6 - 99.3)E 0 ( 5.6 - 99.3)E 0 (0/ 12) (6/ 8) (6/ 8)

Ba-140 (20)

(0)

-3.OE 0

-3.2 - 1.0)E 1 (0/ 12) 10 3.4E 1

-4.2 - 35.0)E 1 (0/ 8) 3.4E 1

-4.2 - 35.0)E 1 (0/ 8)

I La-140 (20)

(0)

-3.OE 0

-3.2 - 1.0)E 1 (0/ 12) 10 3.4E 1

-4.2 - 35.0)E 1 (0/ 8) 3.4E 1

-4.2 - 35.0)E 1 (0/ 8)

I Ce-141 (20) 2.OE 0 10 1.1E 1 1.1E 1 Ce-144 (0)

(20)

-7.9

-2.OE 0

- 17.8)E 0 (0/ 12) 08

-2.3 - 40.7)E 0 1.9E 0 (0/ 8)

-2.3 - 40.7)E 0

-7.5E -1 (0/ 8) I (0) -3.2 - 5.8)E 1 -3.2 - 5.8)E 1 -3.0 - 6.5)E 1 (0/ 12) (0/ 6) (0/ 8)

I

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

Table 3.12-1 (Continued)

Radiological Environmental Monitoring Program Summary Seabrook Nuclear Power Station, Seabrook, NH (January - December 2011)

MEDIUM: Vegetation (TG) UNITS: pCi/kg wet Indicator Stations Station With Highest Mean Control Stations Radionuclides Mean Station Mean Mean (No. Analyses) Required Range Range Range (Non-Routine*) LLD (No. Detected**) (No. Detected**) (No. Detected**)

Ac-228 (20) 3.3E 1 09 3.9E 1 2.9E 1 (0) 5.5 - 72.2)E 0 ( 5.5 - 72.2)E 0 -1.4 - 8.8)E 1 (1/ 12) (U/ 6) (0/ 8)

Th-228 (20) 7.7E 0 09 1.2E 1 1.1E 1 (0) -1.1 - 4.1)E 1 ( -7.4 - 40.7)E 0 ( -1.6 - 42.4)E 0 (2/ 12) (1/ 6) (0/ 8)

Non-Routine refers to those radionuclides that exceeded the Reporting Levels in ODCM Table A.9.1-3.

- The fraction of detectable measurements (i.e. > MDC with no uncertain identification) is shown in parentheses.

769-

3.13 Direct Radiation I Direct gamma radiation exposure was measured with thermoluminescent dosimeters (TLDs). Two TLD badges are placed at each of the monitoring stations. Each TLD badge has three CaSO 4:Tm elements. A location result is an average of six independent readings per quarter. A total of forty-seven stations are I

located offsite, forty of which are required by the ODCM. The badges were collected and read out on a quarterly schedule.

The exposure rates were normalized to a 91-day quarter. A summary of the 2011 data for the plant operational REMP is shown in Table 3.13-1. Figures 3.6 through 3.14 provide a comparison of quarterly TLD location responses in2011 which exhibit the natural variation in exposure rates quarter to quarter.

Figures 3.6.1 through 3.14.1 provide a long term trend line for each of the environmental TLD locations.

The exposure rate response at individual monitoring stations have on occasions exhibited step changes at some point in the past that are likely related to changes in local conditions in the area of the dosimeter measurement. As an example, TL-69 was moved in August, 2010, several hundred feet from its original placement to support construction of a new firing range near the site boundary. Since then (4th quarter of I

2010 through the 4 th quarter of 2011) the average quarterly TLD response has been observed to be 14.8 mR. From 1st quarter 2009 through the 2nd quarter of 2010 prior to the relocation of the dosimeter, the average quarterly response was 18.1 mR. The movement of location TL-69 saw a step decrease inthe observed exposure rate of approximately 18.6%, or about 3.4 mR/quarter. No other step changes at other near area monitoring locations were noted during this time indicating that plant operations were not the cause, but that the ambient background level at the new location is inherently lower than the original site.

Overall, the REMP direct radiation program showed no statistically significant indication of increased direct radiation above the variable background measured exposure rate in unrestricted areas. This is demonstrated by the fact that indicator location results (as a group) are statistically the same as control locations. The 2011 annual mean of all indicator locations was 16.4 mR/91-day quarter while the mean of all control locations was 18.0 mR/91-day quarter. This indicates that collectively there is no statistical difference in the annual direct dose as a function of distance from the plant. All observed differences of the 2011 individual location TLD measurements when compared with pre-operational TLD measurements I

(see Table 3.13-2 for pre-operational history) reflect expected random variability. No direct radiation dose beyond the site boundary was attributed to station operation during 2011.

The direct radiation-monitoring program demonstrated that no increasing or decreasing trends were detected. Therefore, there was no offsite dose to the public or impact to the environment from the operation of the plant.

Any TLD collection and analysis deviations from the ODCM required program that may have occurred during the year are described in Section 5.

TABLE 3.13-1 Environmental TLD Measurements Net Exposure in mR/Standard Quarter (91 days) 2011 Qtr Ave Sta. 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Over Yr No. Description Exp. S.D. S.D. Exp S.D. Exp. S.D. Exp.

TL-01 Brimmer's Lane 15.8 + 0.9 20.4 + 0.9 18.1 + 0.8 19.4 + 1.0 18.4 TL-02 Landing Road 12.7 + 0.7 15.2 + 0.7 13.4 + 0.7 15.0 + 0.7 14.1 TL-03 Glade Path 14.6 + 1.0 15.6 + 0.7 # + # 15.6 + 0.8 15.3 TL-04 Island Path 14.3 + 0.7 16.8 + 0.8 15.4 + 0.8 17.0 + 1.0 15.9 TL-05 Harbor Road 13.6 + 0.7 15.3 + 0.6 14.1 + 0.7 15.2 + 0.6 14.6 TL-06 Barge Landing 13.0 + 0.7 18.8* + 1.4 14.9 + 0.8 15.3 + 0.6 15.5 TL-07 Cross Road 12.0 + 0.7 13.1 + 0.8 12.0 + 0.8 13.1 + 0.8 12.6 TL-08 Farm Lane 13.5 + 0.7 18.5* + 2.2 15.3 + 0.9 17.3 + 0.7 16.2 TL-09 Farm Lane 14.0 + 0.8 17.4 + 1.1 15.7 + 0.8 17.4 + 0.9 16.1 TL-10 Site Boundary 14.3 + 0.8 20.3 + 0.9 17.0 + 1.0 20.4+ + 1.3 18.0 TL-11 Site Boundary 16.9 + 1.5 19.9 + 1.1 16.9 + 0.8 17.8 + 0.9 17.9 TL-12 Site Boundary 13.8 + 0.7 19.9 + 0.9 17.7 + 0.8 19.6 + 1.0 17.8 TL-13 Inside Site Boundary 17.6 + 0.8 21.8 + 1.2 19.3 + 1.0 19.2 + 0.9 19.5 TL-14 Trailer Park 14.2 + 0.9 17.3 + 0.8 15.6 + 0.8 16.9 + 0.8 16.0 TL-15 Brimmer's Lane 15.7 + 0.9 20.2 + 0.8 18.5 + 1.2 19.2 + 1.1 18.4 TL-16 Brimmer's Lane 14.5 + 0.7 17.6 + 0.9 15.7 + 0.8 17.1 + 0.8 16.2 TL-17 South Road 14.7 + 0.9 17.4 + 0.9 17.3 + 0.9 17.6 + 0.8 16.8 TL-18 Mill Road 13.1 + 0.7 16.8 + 0.7 16.1 + 0.9 16.9 + 1.5 15.7 TL-19 Appledore Avenue 14.1 + 0.8 16.3 + 0.6 15.3 + 0.7 16.3 + 0.6 15.5 TL-20 Ashworth Avenue 14.8 + 0.9 18.6 + 1.0 16.3 + 0.7 18.1 + 1.0 17.0 TL-21 Route 1A 15.0 + 0.8 17.9 + 0.7 17.8 + 0.9 18.7 + 0.8 17.4 TL-22 Cable Avenue 13.1 + 0.9 16.7 + 0.8 16.6 + 0.9 17.9 + 0.8 16.1 TL-23 Ferry Road 13.8 + 0.8 16.7 + 0.7 14.7 + 0.8 17.4 + 0.8 15.7 TL-24 Ferry Lots Lane 12.9 + 0.7 15.6 + 0.7 14.4 + 0.7 16.6 + 0.6 14.9 TL-25 Elm Street 12.3 + 0.7 15.9 + 0.8 14.5 + 0.7 16.9 + 0.8 14.9 TL-26 Route 107A 12.6 + 0.6 15.9 + 1.0 15.0 + 0.9 18.0 + 0.7 15.4 TL-27 Highland Street 14.4 + 0.9 16.5 + 0.8 16.0 + 1.2 18.2 + 0.8 16.3 TL-28 Route 150 13.3 + 0.7 17.0 + 0.8 16.0 + 0.8 19.1 + 0.8 16.4 TL-29 Frying Pan Lane 13.1 + 0.7 16.3 + 0.8 14.6 + 0.8 17.7 + 1.2 15.4 TL-30 Route 27 12.1 + 0.7 16.3 + 0.8 17.1 + 0.8 17.2 + 0.9 15.7 TL-31 Alumni Drive 11.4 + 0.9 15.2 + 0.7 14.1 + 0.7 16.4 + 0.8 14.3 TL-32 SB Elementary School 16.2 + 1.4 18.9 + 0.8 17.7 + 1.4 19.7 + 1.0 18.1 TL-33 Dock Area 16.6 + 1.6 23.1 + 1.4 21.1 + 1.1 24.9 + 1.4 21.4 TL-34 Bow Street 16.5 + 1.0 20.2 + 0.8 22.5 + 2.5 21.3 + 1.3 20.1 TL-35 Lincoln Ack. School 15.4 + 1.9 19.4 + 0.8 18.8 + 0.9 20.5 + 1.1 18.5 TL-36 Route 97 (Control) 14.4 + 0.8 20.2* + 1.7 15.3 + 1.5 16.3 + 0.6 16.6 TL-37 Plaistow,NH (Control) 14.4 + 0.8 19.2 + 1.2 18.5 + 1.1 20.2 + 0.9 18.1 TL-38 Hampstead,NH (Control) 19.5 + 1.1 21.7 + 1.4 19.2 + 0.9 21.7 + 1.7 20.5 TL-39 Fremont,NH (Control) 18.4 + 1.1 22.8 + 1.0 20.9 + 0.9 24.3 + 0.9 21.6 TL-40 Newmarket,NH (Control) 13.9 + 0.8 18.2 + 1.0 17.9 + 1.1 19.6 + 1.1 17.4 TABLE 3.13-1 (Continued)

IB Environmental TLD Measurements Net Exposure in mR/Standard Quarter (91 days) 2011 Qtr Ave Sta. 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Over Yr No. Description Exp. S.D. Exp. S.D. S.D. Exp. S.D. Exp.

TL-41 Portsmouth,NH (Control) 14.9 + 0.9 21.0* + 3.9 17.3 + 1.1 18.0 + 0.6 17.8 TL-42 Ipswich,MA (Control) 12.7 + 0.8 # + # 14.0 + 0.8 14.8 + 0.6 13.8 TL-43 Rocks Road Landing 11.5 + 0.7 13.5 + 0.8 14.1 + 0.8 15.4 + 0.8 13.6 TL-44 SB Education Center 12.7 + 0.8 15.5 + 0.7 14.9 + 1.1 16.4 + 0.7 14.9 TL-45 Hampton Fire Station 15.3 + 0.9 17.4 + 0.8 17.1 + 0.9 18.5 + 0.8 17.1 TL-46 SB Police Station 14.4 + 0.9 16.5 + 0.6 17.0 + 0.8 18.3 + 1.0 16.6 TL-47 Route 84 13.2 + 0.8 15.6 + 1.0 16.2 + 1.0 16.7 + 1.0 15.4 Mean of Indicators 14.1 17.4 16.3 17.8 16.4 Mean of Controls 15.5 20.5 17.6 19.3 18.0

TLD was missing at quarterly change-out.

"* Dosimeters were observed to be wet at time of analysis.

+ Includes extrapolation of response to cover early removal of TLD in December.

Table 3.13-2 Pre-Operational Environmental TLD Measurements Net Exposure in mR/Standard Quarter (91 days)

Qtr Ave ist 2nd 3rd 4th Over Yr Quarter Quarter Quarter Quarter Ex.Exp. Exp. Exp. Exp.

1982 Mean of Indicators -- 17.1 18.1 17.5 17.6 Mean of Controls -- 16.9 18.1 17.9 16.8 1983 Mean of Indicators 16.7 17.1 18.8 17.9 17.6 Mean of Controls 16.9 17.5 18.7 18.4 17.9 1984 Mean of Indicators 16.1 17.1 16.9 17.5 17.0 Mean of Controls 17.6 17.4 15.8 18.7 17.4 1985 Mean of Indicators 16.9 18.0 18.9 16.1 17.4 Mean of Controls 16.8 17.7 18.9 16.1 17.4 1986 Mean of Indicators 14.0 15.5 15.3 15.0 15.0 Mean of Controls 13.9 18.0 16.8 15.1 16.0 1987 Mean of Indicators 12.7 14.8 15.0 14.4 14.2 Mean of Controls 13.0 14.8 15.3 15.0 14.6 1988 Mean of Indicators 13.5 14.1 14.7 14.9 14.3 Mean of Controls 13.3 14.4 18.1 14.6 15.1 1989 Mean of Indicators 14.4 14.3 .... 14.4 Mean of Controls 14.0 14.4 .... 14.2 All Pre-Operational Mean of Indicators 14.9 16.0 16.8 16.2 15.9 Mean of Controls 15.1 16.4 17.4 16.5 16.2 FIGURE 3.6 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 40 40 30 30 220 20 E

10 10 0 -0 Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 2011

-B-TL-01 Brimmer's Lane

--- TL-02 Landing Road A TL-03 Glade Path

-X-TL-04 Island Path a TL-05 Harbor Road FIGURE 3.6.1 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 30 30 20 20 CL CE E

10 10 04- I I I I I I . 0 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

--- TL-01 Brimmer's Lane

--* TL-02 Landing Road

--*-TL-03 Glade Path

--- TL-04 Island Path

-X- TL-05 Harbor Road FIGURE 3.7 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 40 40 30 30 M

20 20 E

10 10 0 0 Qtr-1 Qtr-2 Qtr-3 Qtr-4 2011

-e- TL-06 Barge Landing

--- TL-07 Cross Road

-A-TL-08 Farm Lane

-+ TL-09 Farm Lane X--TL-10 Site Boundary

-mm*nm -m -u mm n-m m-- -- - -

FIGURE 3.7.1 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 30 30 20 20

'I) w E

10 10 0 4- I988I I I 2000 I . I 2 I 1 0 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

-*- TL-06 Barge Landing

TL-07 Cross Road

-- TL-08 Farm Lane

-4*-TL-09 Farm Lane

-X-TL-10 Site Boundary FIGURE 3.8 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION I 40 40 I

I 30 I

30 0 ....

.20 20 EI 10 10 0 -0 Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 2011

-*-TL-1 I Site Boundary

-- TL-12 Site Boundary S--TL-13 Inside Site Boundary s TL-14 Trailer Park

-X-TL-15 Brimmer's Lane mm - m - mm - - n mm m m m -m FIGURE 3.8.1 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 30 30 20 20 U)

(U

'I) 0.

E 10 10 0 4- I I II I I I I I I 1 0 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

-- 3 TL-1 1 Site Boundary 9-TL-12 Site Boundary A TL-1 3 Inside Site Boundary

-- TL-14 Trailer Park

)K TL-1 5 Brimmer's Lane FIGURE 3.9 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 3 40 40 30 30 1 0 0 10 10 Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 20112 E3B-TL-16 Brimmer's Lane

TL-17 South RoadI

-- -TL-18 Mill RoadI

-X-TL-19 Appledlore Avenue

+TL-20 Ashworth AvenueI

- - m m m = m - m- m - m m FIGURE 3.9.1 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 30 30 20 20 0)

E 10 10 04- I I I I I I996 I 2 I I 10 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

-- 3 TL-16 Brimmer's Lane 0 TL-17 South Road A-- TL-18 Mill Road

- TL-1 9 Appledore Avenue X TL-20 Ashworth Avenue I

I i

FIGURE 3.10 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION I

I 40 40 I

30 30 20- 20 EI 10 10 i

0 0 Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 2011

-a-TL-21 Route 1A 3

-OTL-22 Cable Avenue

-A-TL-23 Ferry Road 3 TL-24 Ferry Lots Lane

-X- TL-25 Elm Street I

FIGURE 3.10.1 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 30 30 20 20 M

E 10 10 0 I I I I I I I I 1 I I 0 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

-- l- TL-21 Route 1A

- TL-22 Cable Avenue

-&-- TL-23 Ferry Road TL-24 Ferry Lots Lane

-X- TL-25 Elm Street FIGURE 3.11 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs) 40 SEABROOK STATION 40 30 30 20 20 EI 10 10 0 01 Qtr. I Qtr. 2 Qtr. 3 Qtr. 4 2011

-E-TL-26 Route 107A 3 0 TL-27 Highland Street a TL-28 Route 150

-.- TL-29 Frying Pan Lane II

-X TL-30 Route 27 I

I 3

- m mm mmm - m m m - m mii FIGURE 3.11.1 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 30 30 20 20 4) ca h-E 10 10 0 4- I I 1 1 0 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

-- 3 TL-26 Route 107A

- TL-27 Highland Street A TL-28 Route 150

--- TL-29 Frying Pan Lane

-X--TL-30 Route 27 FIGURE 3.12 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 40 40 30 30 a20 20 E

10 10 0 0 Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 2011

-B-TL-31 Alumni Drive

-G TL-32 SB Elementarty School

TL-33 Dock Area TL-34 Bow Street

-- -TL-35 Lincoln Ackerman School FIGURE 3.12.1 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 30 30 20 20 E

10 10 0 [- 8 I I I I I I 20 0 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

-- 1TL-31 Alumni Drive TL-32 SB Elementary School b TL-33 Dock Area

--- TL-34 Bow Street

-X--TL-35 Lincoln Ackerman School I

I I

FIGURE 3.13 I ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 40 40 3 I

30 30 3 020 t 20 I

10 10 I

i 0 0 Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 2011

-- 3 TL-36 Route 97 (Control) 3

- TL-37 Plaistow, NH (Control)

-*-TL-38 Hampstead NH (Control) 3

-- f TL-39 Fremont, NH (Control)

-X-TL-40 Newmarket, NH (Control) 3 i

3

FIGURE 3.13.1 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 30 30 20 20 U) t w

a Ii) 0.

E 10 10 0 - i10 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

- TL-36 Route 97 (Control) 0 TL-37 Plaistow, NH (Control) a TL-38 Hampstead NH (Control)

-- 0 TL-39 Fremont, NH (Control)

-X- TL-40 Newmarket, NH (Control)

I FIGURE 3.14 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 3

40 40 U I

30 30

~20 20 10 10 I

0 . -0I Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 2011 3

--- TL-41 Portsmouth, NH (Control)

eTL-42 Ipswich, MA (Control)

TL-43 Rocks Road Landing 3

--- TL-44 SB Education Center

-*-.TL-45 Hampton Fire Station

-eTL-46 SB Beach Police Station

--- TL-47 Hampton Falls, Route 84 3 m m m m--- mm mmm -m - m m m m m-- m FIGURE 3.14.1 ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 30 30 20 20 a

c5 0.

E 10 10 0 4- I I i I I I I L 0 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012

-E-TL-41 Portsmouth, NH (Control) 0 TL-42 Ipswich, MA (Control)

A TL-43 Rocks Road Landing

- TL-44 SB Education Center

-X- TL-45 Hampton Fire Station

-- TL-46 SB Beach Police Station

-+--TL-47 Hampton Falls, Route 84 3.14 Fukushima Daiichi Event: Local Observations i 3.14.1 Overview As part of the implementation of the REMP, plant operators need to assess what is the likely source of any potential plant related positive measurement of radioactive material found in environmental media.

A review of Seabrook Station REMP broad leaf vegetation (a mixture of oak, maple and birch leaves) analysis results for samples taken during the spring and summer of 2011 indicated the presence of low i

levels of Cs-1 37. Since Cs-1 37 is generated both in nuclear weapons testing and power plant operations, the source of environmental levels of detected Cs-137 needs to be delineated. Cesium-137 in broad leaf vegetation has not been detected in the past at Seabrook. Subsequently, it is very unlikely that the source can be attributed to past weapons testing. Similarly, some milk and air monitoring samples in 2011 also indicated the presence of fission product radioactivity (Cs-134, Cs-137 and 1-131). A collective evaluation of the positive REMP measurements was performed to determine the source of the observed radioactivity.

3.14.2 Assessment 3.14.2.1 Broad Leaf Vegetation The Seabrook REMP requires that broad leaf vegetation be sampled from three locations monthly during the growing season since the local site environs has insufficient milk animal locations necessary to provide a reliable indicator of plant related radionuclides that might be present in the environment. Table 3.14-1 shows that Cs-137 was detected in a vegetation sample collected at location TG-10 (a control location) in the third week of May 2011. The detected level was well below the reporting level for Cs-1 37, but above the lower limit of detection (LLD) value for Cs-137 in this media. No positive indication of Cs-137 was noted in the two broad leaf vegetation indicator locations TG-08 and TG-09. A re-analysis of the May sample from TG-1 0 confirmed the presence of detectable Cs-1 37. 3 Subsequent samples from TG-10 in June and July also indicated positive Cs-1 37, but at considerably lower levels as seen on Table 3.14-1. The apparent average concentration of Cs-137 for June and July had dropped to about 17.3 pCi/kg from the May average value of 68.6 pCi/kg, suggesting that the retention (r) of Cs-1 37 on the leafy vegetation was about 25% (r = 0.25) of the initial observed value.

Regulatory Guide 1.109 describes a vegetation uptake model that accounts for both atmospheric deposition on the outer surface of foliage and a root uptake component for the bio-transfer from radioactivity deposited in soil with uptake into the roots of the plant. The direct foliage deposition component has associated with ita retention factor (r)that represents the fraction of deposited material I

retained on leafy vegetation as a result of weathering effects that wash off much of the surface contamination over time. The regulatory guide quotes an r value of 0.2 (RG 1.109, Table E-1 5). This is very close to the observed difference in Cs-1 37 contamination between the first occurrence in May and the subsequent samples from TG-10 in June and July. This retention suggests a source of contamination I

due to atmospheric deposition over a relatively short time frame on the outer surface of the foliage as opposed to a root uptake into the plant, which would not be reduced by wash off from weathering affects.

Table 3.14-1 also indicates the result of sample analyses from 2009 and 2010 for comparison. With the exception of the May 2011 sample which indicated Cs-1 37 at a concentration of 99.3 pCi/kg, all other positive indications of Cs-1 37 were at detection levels lower than the standard analysis sensitivity n achieved in previous years. The required lower limit of detection (LLD) for Cs-137 invegetation is set at 80 pCi/kg. The environmental lab analyses prior to 2011 set their analysis criteria to aim for a sensitivity of about half of the required LLD. Table 3.14-1 indicates that the achieved average MDC for Cs-137 in 2009 and 2010 was 45.1 pCi/kg. At this level, positive indication of Cs-1 37 would only have been seen in one U

May sample in 2011. The current sensitivity for lab analyses has lowered the Cs-1 37 detection level to an average MDC of 8.4 pCi/kg, or approximately 5 times lower than in past years. This improvement in counting sensitivity has contributed to the number of positive Cs-137 measurements in 2011.

Table 3.14-1 Broad Leaf Vegetation at TG-10 for Cs-I 37 Lab Analysis # Collection date Cs-137 pCi/kg MDC pCi/kg 265446003 10/19/2010 6.98 10.5 278773003 5/21/2011 99.3 7.15 284947001* 5/21/2011 37.9 3.88 280316003 6/14/2011 10.4 6.85 283183001** 6/14/2011 14.1 11.7 283013003 7/26/2011 27.3 10.5 Average of 37.8 8.02 Detectables L16530-03 5/18/2010 26 44 L16645-03 6/15/2010 9 50 L16726-03 7/27/2010 -5 57 L16754-03 8/24/2010 38 46 L16776-03 9/21/2010 36 47 L15225-03 5/21/2009 11.9 33 L15499-03 7/31/2009 16 36 L15581-03 8/25/2009 31 50 Li 5698-03 9/22/2009 2 47 L15817-03 10/23/2009 38 41 Average 20 45

re-analysis of sample # 278773003

- re-analysis of sample # 280316003 3.14.2.2 Milk (goat)

Milk sampling locations are limited in the Seabrook site environs, making this unsuitable for routine REMP sampling in conformance with NRC guidance in NUREG-1301, Table 3.12-1. However, milk sampling is performed from available locations each month as an indicator media associated with the airborne - food product exposure pathway.

Table 3.14-2 provides a listing of milk sample analysis results for 2011. Positive indications of Cs-1 37 over the first half of the year indicate cesium levels comparable to past year trends. For TM-15, the average Cs-1 37 concentration at 7.29 pCi/kg is up from the 2010 average value of 4.7 pCi/kg, but still well within the data variability as seen by a 2 sigma variance of 5.94 pCi/kg. Past trends of Cs-1 37 in milk have been associated with weapons fallout which has exhibited decay in environmental levels of roughly a factor of 2 over that last 25 years. Uptake of this source of Cs-1 37 is primarily by root uptake, but can be affected by soil re-suspension and direct foliar deposition.

I Table 3.14-2 Selected Milk Samples in 2011 I Location TM-1 5 (goats) Location TM-24 (goats) I Lab #

Collection Date Cs-1 37 pCi/kg MDC pCi/kg Collection Date Cs-137 pCi/kg MDC pCi/kg i

270291 1/11/2011 10.5 2.66 NA 272194 273802 275584 2/9/2011 3/9/2011 4/6/2011 7.49 7.77 6.99 2.23 2.19 2.03 NA NA NA I

276543 277468 278644 4/20/2011 5/3/2011 5/18/2011 5.66 6.53 3.52 3.16 2.33 1.61 4/20/2011 5/3/2011 5/18/2011 2.95 2.52

-1.68 2.76 1.86 3.35 I

279336 280311' 282329 6/1/2011 6/15/2011 7/13/2011 3.33 8.84 5.15 2.72 2.33 1.95 6/1/2011 6/15/2011 7/13/2011 1.83 1.82 1.04 2.75 2.04 2.23 I

283016 7/27/2011 3.70 2.41 7/27/2011 2.45 3.02 284041 284904 8/10/2011 8/24/2011 8.24 3.22 2.84 3.63 8/11/2011 3.29 NA 2.96 I 285767 9/6/2011 4.63 2.46 NA 286081 286563 9/14/2011 9/21/2011 9.93 13.0 2.53 3.01 NA NA I

288567 10/19/2011 12.4 3.06 NA 290709 292314 11/16/2011 12/14/2011 8.38 9.25 1.60 2.13 NA NA I Average 7.29 pCi/kg Average = 1.78 pCi/kg 2010 Ave. = 4.7 pCi/kg 2010 Ave. -0.85 pCi/kg I

The actual contribution to milk concentration levels from any short term atmospheric deposition in the local area depends on the feeding practices (fresh feed versus local stored feed from production periods prior I

to any atmospheric release) of the milk animals and is not pronounced in the current data set. The 2010 Seabrook Station Land Use Census reported that at milk sample location TM-15, goats were allowed to graze for fresh feed during the growing season, but the addition of stored feed varied and the source of i the feed is unknown. Table 3.14-2 also indicates that the Cs-1 37 concentration at TM-15 averaged a seasonal high value of 8.6 pCi/kg for the first three winter samples in 2011 before the pasture grazing season began in May. This is compared to the grazing season value of 5.2 pCi/kg, suggesting that stored feed may have a significant contribution to the overall cesium levels in milk. The monthly trend of Cs-137 concentration measurements does not exhibit any observable spike in Cs-1 37 following the Fukushima I Daiichi accident (See Figure 3.3).

I 3.14.2.3 Other Vegetable Media In addition to broad leaf vegetation (tree leaves) sampled under the Seabrook REMP, periodic samples of I

vegetables (edible produce) are collected during the growing season. These represent similar exposure pathways for uptake of any airborne contaminates. For 2011, three sets of sample analyses have been analyzed, including three locations sampled for strawberries in June, and three locations sampled for tomatoes in July and August. None of these food products indicated any detectable Cs-134, Cs-137, or I

any other plant related radionuclide. Only naturally occurring K-40 and Be-7 were detected in samples.

I

If the source of Cs-1 37 on tree leaves is associated with regional fallout patterns in April from the Fukushima Daiichi event, the timing of such fallout may have occurred prior to the full development of the produce (strawberries and tomatoes) taken from the fields in June, July and August, thereby limiting the potential for observable concentrations in food products resulting from aerial deposition. Tree leaves develop earlier in the growing season than most edible plants and remain exposed to airborne deposition until the loss of fall foliage, thereby providing a longer opportunity to pick up airborne contaminates.

3.14.2.4 Air Particulate / Air Radioiodine Air particulate measurements taken by REMP air samplers in late March and in April, 2011 provided positive indication of increased gross beta particulate activity above normal levels, typically by a factor of about 2, but with an increase of almost 4 times above normal observed values as seen at AP-02 in early April [sample # 275574003]. There were also several cases of positive 1-131 in air measurements for the first time in REMP air sampling history at Seabrook Station. Table 3.14-3 provides a chronological listing of control air samples from station AP/CF-09 in Georgetown as an illustration of the time frame when airborne activity was being detected in the coastal environment. Subsequent composite gamma isotopic measurement of air particulate filters also provided positive indication of Cs-1 37 in the second quarter of the year (see Table 3.14-5). As a special analysis case, two REMP indicator AP individual filters were also subjected to gamma isotopic analysis and confirmed that in the time frame from late March to early April, positive levels of Cs-1 37 (and Cs-1 34) were being detected in air samples in the northeast costal region (see Table 3.14-4).

The positive indications of 1-131 in air in the second quarter also have been reported by other nuclear utility REMP monitoring programs to Nuclear Energy Institute (NEI). The source of the 1-131 (and corresponding high gross beta particulate activity and airborne Cs-1 37) are attributable to nation-wide fallout patterns related to the Fukushima Daiichi event in Japan on March 11, 2011 and the subsequent release of fission products to the atmosphere.

I I

Table 3.14-3 Selected AP/CF-09 Georgetown Light (Control) Analyses in 2011 3 Sample Date Gross B 1-131 Lab #

Duration (collection) pCi/m 3 pCi/m 3 I 2 wk 1/11/2011 3.93E-02 6.26E-03 270289 2 wk 1/26/2011 2.48E-02 1.06E-03 271270 2 wk 2/9/2011 3.76E-02 3.31 E-03 272216 I

2 wk 2/23/2011 3.23E-02 2 wk 3/9/2011 2.84E-02

-1.23E-03

-1.40E-03 272943 273849 I 2 wk 3/23/2011 2.46E-02 2.47E-02 274665 1 wk 3/30/2011 5.52E-02 2.68E-02 274937 1 wk 4/6/2011 6.87E-02 1.07E-01* 275574 2 wk 2 wk 4/20/2011 5/3/2011 4.12E-02 2.04E-02 2.57E-02*

7.50E-03 276545 277483 I 2 wk 5/18/2011 1.34E-02 -3.64E-03 278643 2 wk 2 wk 6/1/2011 6/15/2011 3.24E-02 1.93E-02

-3.35E-04

-1.65E-03 279338 280318 I

2 wk 2 wk 6/29/2011 7/13/2011 1.76E-02 2.79E-02

-3.54E-03 2.45E-03 281129 282335 I

2 wk 7/27/2011 3.32E-02 1.19E-03 283010

1-131 detected as positive. !

Table 3.14-4 I

Selected AP Cs-137 Analyses in 2011 Location Period Cs-1 37 3

pCi/m Lab # Note AP-09 1st Qtr 1.28E-04 277523 Composite AP-02 4/6/2011 1.56E-02 277843 Single filter AP-05 4/6/2011 1.19E-02 277843 Single filter AP-09 2nd Qtr 1.23E-03 284171 Composite Table 3.14-5 Selected Air Particulate Composite Filters for 2nd Quarter 2011 Location Cs-1 37 pCi/m 3 MDC pCi/m 3 Cs-1 34 pCi/m 3 MDC pCi/m 3 AP-01 9.44E-04 3.85E-04 9.50E-04 3.44E-04 AP-02 1.22E-03 4.99E-04 1.38E-03 1.02E-03 AP-03 1.61 E-03 8.33E-04 9.09E-04 1.45E-03 AP-04 1.43E-02 7.42E-03 5.14E-03 1.03E-02 AP-05 1.30E-03 6.34E-04 7.33E-04 1.11 E-03 AP-07 7.16E-04 1.05E-03 6.26E-04 1.58E-03 AP-08 1.09E-03 4.51E-04 6.86E-04 1.11E-03 AP-09 1.23E-03 5.14E-04 1.96E-03 1.31E-03 Average 2.80E-03 1.47E-03 1.55E-03 2.28E-03 MDC Required 6.00E-02 MDC Required 5.OOE-02 3.14.3 Dose Significance Cesium in Broad Leaf Vegetation The potential ingestion dose pathway for consuming broad leaf vegetation can be estimated by assuming that the average positive Cs-1 37 concentration from the Fukushima release detected in tree leaves at TG-10 in 2011 through end of July was consumed over a year by a critical age group (child). From Regulatory Guide 1.109, the maximum individual consumption rate of broad leaf vegetable by a child amounts to 26 kg/yr (RG 1.109 Table E-5). The critical organ for Cesium intake for a child is seen as the liver, with a dose commitment conversion factor of 3.13E-04 mrem/pCi ingested (RG 1.19 Table E-12). As a result, the potential dose from the Fukushima release is calculated as:

37.8 pCi/kg

26 kg/yr

3.13E-04 mrem/pCi ingested = 0.308 mrem/yr (child liver)

The ALARA design objectives of 10CFR50, Appendix I, provide a guideline value of 15 mrem/yr to any organ of an individual from all airborne pathways for effluent sources related to the power plant. The dose potential associated with broad leaf vegetation represents only about 2% of the ALARA objective without regard to the actual source of Cesium. Seabrook reports that no Cs-1 37 has been detected in any atmospheric discharges from the station in 2011 prior to or during the period of observed Cs-1 37 in vegetation.

Cesium in Milk In a similar fashion, the dose potential from the ingestion of milk, assuming the detected concentration averages can be applied to the maximum individual, can be estimated. For Cs-1 37 in milk, Table 3.14-2 shows the average concentration to be 7.29 pCi/kg (location TM-15). The annual consumption rate for the critical age group drinking milk (infants) is taken from RG 1.109, Table E-5, as 330 liters/year. It is assumed that the milk has a slightly higher density than water at 1.04 kg/liter. The resulting dose impact to the liver of an infant is:

7.29 pCi/kg

330 liter/yr

1.04 kg/liter

6.11E-04 mrem/pCi ingested = 1.53E+00 mrem/yr.

The dose potential associated with milk ingestion represents about 10% of the ALARA objective without regard to the actual source of Cesium. As noted above, Seabrook reports that no Cs-137 has been detected in any atmospheric discharges from the station in 2011 prior to or during the period of observed Cs-137 in vegetation. U Cesium in Air 3 For the inhalation of Cs-1 37, the average air concentration of 1.43E-02 pCi/i 3, noted for the second quarter of 2011 at air sampling location with the highest recorded value (AP-04 as shown on Table 3.14-5), is combined with an inhalation rate of 8000 m3/year (RG 1.109, Table E-5 for a teen) and a dose conversion factor for the liver of a teen as critical organ of 1.06E-04 mrem/pCi inhaled (RG 1.109, Table E-8). The resulting dose impact to the liver of a teenager from the Fukushima release, conservatively assuming the measured air concentration persisted for a full year, is: 3 1.43E-02 pCi/m 3

8000 m3/yr

1.06E-04 mrem/pCi inhaled = 1.21 E-02 mrem/yr.

Similarly for the inhalation of Cs-1 34, with a potential air concentration of 5.14E-03 pCi/m 3 at the same location as noted above for Cs-1 37 (AP-04 as seen on Table 3.14-5) is combined with an inhalation rate of 8000 m3/year and a dose conversion factor for the liver of a teen as critical organ/age group of 1.41 E-04 mrem/pCi inhaled (RG 1.109, Table E-8). The resulting dose impact to the liver of a teenager from the Fukushima release, assuming the measured air concentration persisted for a full year, is:

5.14E-02 pCi/m 3

8000 m3/yr

1.41 E-04 mrem/pCi inhaled = 5.80E-02 mrem/yr.

The dose potential associated with the inhalation of Cs-1 37 and Cs-1 34 represents only about 0.08%, and 0.39%, respectively, of the ALARA objective. As noted above, the Seabrook reports that no Cs-1 37 or Cs-U 134 has been detected in any atmospheric discharges from the station in 2011 prior to or during the period of observed Cs-1 37 in vegetation.

Iodine in Air In addition to Cesium in air particulates, charcoal filters associated with the air particulate monitoring I stations also detected the presence of 1-131 in at least two samples from location CF-09 in April, 2011.

For the inhalation of 1-131, the critical organ / age group are the thyroid and child. If the average air concentration of 6.64E-02 pCi/m 3 for the two positive samples in April of 2011 at location AP-09 (see Table 3.14-3), is combined with an inhalation rate of 3700 m3/year (RG 1.109, Table E-5 for a child) and a dose conversion factor for the thyroid of a child as critical organ of 4.39E-03 mrem/pCi inhaled (RG 1.109, Table E-8), then the resulting dose impact to the thyroid of a child from the Fukushima release, using a conservative exposure period of 2 months (0.167 fraction of a year), is:

6.64E-02 pCi/m 3

3700 mn 3

/yr

4.39E-03 mrem/pCi inhaled

0.167 = 1.80E-01 mrem/yr (child thyroid)

This is equivalent to only 1.2% of the ALARA objective.

3.14.4 Conclusions on Observed Cesium and Iodine in Environmental Media 3 Indications for the source of Cs-1 37 and Cs-134 detected in broad leaf vegetation for the first time in April 2011 are due to the atmospheric deposition of fallout from the Japanese Fukushima Daiichi event of March 11, 2011, which is reported to have released substantial quantities of fission products to the atmosphere. This conclusion is supported by the following observations:

I

" The Cs-1 37 activity in broad leaf vegetation was limited to the control location, but not detected at the much closer Seabrook site boundary indicator locations.

3

" The fall-off of detected Cs-137 concentrations (the apparent weather retention factor r = 0.25) in tree leaves taken at TG-1 0 over the three month period after first detection shows that I atmospheric deposition on the foliage surface (not long term root uptake) is the pathway of uptake, as opposed to chronic buildup from prolonged low level releases. 3

" Seabrook effluent (gas) release pathway monitoring analyses have not detected any Cs-1 37 or Cs-1 34 in Seabrook Station atmospheric releases in 2011, either before or after the Fukushima Daiichi event.

The REMP air particulate monitoring program did report an increase in the gross beta activity at most of the monitoring locations, including control location AP-09, in late March and April following the Fukushima Daiichi event. This is consistent with the anticipated movement of airborne activity moving across the United States from releases at the Japanese plants damaged by the earthquake and tsunami. The follow-up analyses for Cs-134 and Cs-137 on air particulate filters indicated that the presence of Cesium in air was the likely contributor to the detected increase in gross beta activity and provided a source for atmospheric deposition in the local environment.

" REMP airborne measurements of 1-131 at both indicator and control locations in the same time frame as increased gross beta measurements, supports the premise of fallout associated with the Fukushima Daiichi event.

Positive levels of Cs-1 37 were detected in 21 milk samples taken in 2011. However, the relative concentration of Cs-137 detected is comparable with previous measurements of Cesium in milk taken in past years prior to the Fukushima Daiichi event. Fall-out from the Japanese nuclear accident may have contributed to the detectable levels of Cs-1 37 in 2011, but past weapons fall-out remains the mostly likely significant source.

" The estimated dose impacts from the detected radioactivity fisson products detected in various environmental media are all less than the ALARA dose objective assigned to Seabrook Station.if the source of the radioactivity was from local plant operations.

U 4.0 Dry Fuel Storage REMP & Data Summary The Dry Fuel Storage (DFS) radiological environmental monitoring program required by ODCM Control i C.9.4.1 provides representative measurements of direct (including scattered) radiation exposure at those locations that have the highest potential for dose to members of the public resulting from dry fuel storage operations. The design of the storage facility is such that there are no liquid or gaseous effluents released to the environment from DFS and, therefore, no associated exposure pathways for liquids and gases i

requiring the collection and analysis of such sample media. As a result, only direct (including scattered) radiation from the DFS modules need to be monitored for integrated exposures in areas where doses to members of the public need to be limited.

At locations near the DFS where members of the public might be present (off-site areas near the site boundary and on-site special use locations, i.e., the Science and Nature Center, and Fitness Center),

TLDs were placed at least 1 year (4 quarterly measurements) prior to used fuel being placed into storage.

I The DFS received its first load of fuel for storage on July 28, 2008. A total of 6 fuel canisters were placed in the NUHOMS© Horizontal Storage Modules (HSM) on the DFS pad during 2008 with the last one being loaded on September 4, 2008. On September 5, 2008, the final storage configuration for the remainder of the year, including the placement of jersey barriers in front of the HSM bottom vents for additional scatter U

shielding, was achieved. No fuel transfers into or out of the DFS were made in 2009, 2010 or 2011.

The DFS radiological environmental monitoring stations are listed in Table 4.0-1. The measurement locations with respect to the Seabrook site area are shown on Figure 4.0.1.

4.1 Direct Radiation from DFS I As with the plant operations TLD program described in Section 3.13, the DFS TLD exposure rates were normalized to a 91-day quarter. A summary of the 2011 data for the DFS REMP is shown in Table 4.1-1.

Figures 4.1, 4.2 and 4.3 show the quarterly 2011 TLD trend lines for the control and indicator monitoring locations. Figures 4.4, 4.5 and 4.6 provide a comparison of long term trend lines (12 years) for the same control locations, site boundary and special use sites. As note in Section 3.13, TL-69 was moved in August, 2010, several hundred feet from its original placement to support construction of a new firing I

range near the site boundary. Since then (4 th quarter of 2010 through the 4 th quarter of 2011) the average quarterly TLD response has been observed to be 14.8 mR. From 1st quarter 2009 through the 2nd quarter of 2010 prior to the relocation of the dosimeter, the average quarterly response was 18.1 mR. The movement of location TL-69 saw a step decrease in the observed exposure rate of approximately 18.6%,

or about 3.4 mR/quarter. No other step changes at other near area monitoring locations were noted during this time indicating that plant operations were not the cause, but that the ambient background level at the new location is inherently lower than the original site.

Overall, the direct radiation program showed no statistically significant indication of increased direct radiation above the variable background measured exposure rate in unrestricted areas. This is illustrated by the comparison of indicator location results with control locations which showed no significant I

difference (of greater than 20%). The 2011 annual mean of all indicator locations for the DFS was 17.3 mR/91-day quarter with the mean of all control locations also calculated as 18.0 mR/91-day quarter.

There was no statistical difference detected in the annual exposure rates in areas were members of the public could occupy (site boundary and inside special use locations) and the control locations. The on-site I

environmental area TLD location which exhibited the highest single annual TLD response (TL-67, a low occupancy outside transit area next to the parking lot associated with the Fitness Center), indicated an apparent 16.9% increase in exposure rate above the average background when the four quarters of pre-operational TLD data are compared to the 2011 quarterly average TLD data at this location.

The DFS radiation monitoring program in 2011 demonstrated that there was no offsite dose to the members of the public or detectable on-site exposures where members of the public are permitted i

(Science and Nature Center and Fitness Center) from the operations of the DFS.

Any sample collection and analysis deviations from the ODCM required program, or reportable concentrations that may have occurred during the year are described in Section 5.

-100- I

Figure 4.0.1 Dry Fuel Storage TLD Environmental Monitoring Locations I

-101-

Table 4.0-1 Dry Fuel Storage (DFS) TLD Monitoring Locations Site Designation Code TLD Sample Location Description DDFS Distance From Pad Direction From DFS Pad 3

(km)

TL-44 On-site, outside Science & Nature Center (1) 0.21 ESE SB-36 On-site, inside Science & Nature Center 0.24 SE TL-67 SB-35 On-site, outside near Fitness Center parking On-site, inside Fitness Center (1) 0.05 0.08 S

S I

TL-68 Nearby site boundary (firing range) to DFS 0.45 W TL-69 TL-10 Nearby site boundary (Rocks Rd) to DFS Site Boundary Fence (2) 0.47 0.81 W

S I

TL-1 1 Site Boundary Fence (2) 0.52 SSW TL-12 Site Boundary fence (2) 0.53 WSW TL-13 Inside Site Boundary (2) 0.61 TL-14 TL-36 Trailer Park, Seabrook (2)

Rt 97, Georgetown (Control) (2) 0.94 22 WNW NW SSW 3

TL-37 Plaistow, NH (Control) (2) 21 WSW TL-38 Hampstead, NH (Control) (2) 27 W I TL-39 Fremont, NH (Control) (2) 27 WNW TL-40 Newmarket, NH (Control) (2) 22 NNW TL-41 TL-42 Portsmouth, NH (Control)

Ipswich, MA (Control) (1)(2)

(1)(2) 22 22 NNE SSE I

(1) This location is not part of the required DFS radiological monitoring program as defined in Table A.9.4-1 of the I Seabrook ODCM.

(2) Shared environmental monitoring locations for both Seabrook Station REMP and DFS monitoring.

-102-

TABLE 4.1-1 DFS Environmental TLD Measurements Net Exposures in mR/Standard Quarter (91 days) 2011 Qtr Av.

lst Quarter 2nd Quarter 3rd Quarter 4th Quarter Over Yr No. Description S.D. Exp S.D. E S.D. Exp . S.D- Exp.

TL-44 Outside Science & Nature C. (1) 12. 7 0.8 15.5 0.7 14. 9 1.1 16.4 0.7 14.9 SB-36 Inside Science & Nature C. 15.2 0.7 16.2 1.1 13. 9 0.5 16.0 0.6 15.3 TL-67 Outside Fitness Center (1) 18.4 1.1 23.9 0.8 22.0 0.9 23.9 1.0 22.1 SB-35 Inside Fitness Center 15.5 0.7 17.2 1.1 15.6 0.7 16.9 0.7 16.3 TL-68 Nearby Site Boundary to DFS 16.7 1.8 19.0 0.8 19.8 1.2 20.6 1.2 19.0 TL-69 Nearby Site Boundary to DFS 13.0 0.9 14.3 0.7 14.5 0.8 15.7 0.7 14.4 TL-10 Site Boundary Fence (2) 14.3 0.8 20.3 0.9 17.0 1.0 20.4+ 1.3 18.0 TL-11 Site Boundary Fence (2) 16.9 1.5 19.9 1.1 16.9 0.8 17.8 0.9 17. 9 TL-12 Site Boundary Fence (2) 13.8 0.7 19.9 0.9 17.7 0.8 19.6 1.0 17.8 TL-13 Inside Site Boundary (2) 17.6 0.8 21.8 1.2 19.3 1.0 19.2 0.9 19.5 TL-14 Trailer Park Seabrook (2) 14.2 0.9 17.3 0.8 15. 6 0.8 16.9 0.8 16.0 TL-36 Rt 97, Georgetown (control) (2) 14.4 0.8 20.2* 1.7 15.3 1.5 16.3 0.6 16.6 TL-37 Plaistow,NH (Control) (2) 14.4 0.8 19.2 1.2 18.5 1.1 20.2 0.9 18.1 TL-38 Hampstead,NH (Control) (2) 19.5 1.1 21.7 1.4 19.2 0.9 21.7 1.7 20.5 TL-39 Fremont,NH (Control) (2) 18.4 1.1 22.8 1.0 20.9 0.9 24.3 0.9 21.6 TL-40 Newmarket,NH (Control) (2) 13. 9 0.8 18.2 1.0 17.9 1.1 19.6 1.1 17.4 TL-41 Portsmouth,NH(Control) (1)(2) 14.9 0.9 21.0* 3.9 17.3 1.1 18.0 0.6 17.8 TL-42 Ipswich,MA (Control) (1)(2) 12. 7 0.8 14.0 0.8 14.8 0.6 13.8 Mean of Indicators 15.4 19.3 17.2 18.8 17.4 Mean of Controls 15.5 20.5 17.6 19.3 18.0 TLD was missing at quarterly change-out.

+ Includes extrapolation of response to cover early removal of TLD in December.

Dosimeters were observed to be wet at time of analysis.

-103-

FIGURE 4.1 DFS CONTROL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 40 40 1 I

30 30 I

=2 20 a--

E A 10 10 o I 0 0I Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 2011

-B-TL-41 Portsmouth, NH (Control)

--e--TL-42 Ipswich, MA (Control) a TL-36 Route 97 (Control)

--- TL-37 Plaistow, NH (Control)

-X-TL-38 Hampstead NH (Control)

--- TL-39 Fremont, NH (Control)

-Control Average 7 stations I

TL-40 Newmarket, NH (Control)

-104-

FIGURE 4.2 DFS ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 40 40 30 30

' 20 - 20 E

10 10 0 0 Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 2011

TL-10 Site Boundary Fence

.& TL-12 Site Boundary Fence

TL-13 Inside Site Boundary

--- TL-14 Trailer Park

- - Control Average 7 stations

-- TL-11 Site Boundary Fence

-105-

FIGURE 4.3 I DFS ENVIRONMENTAL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION I

40 40 5 I

30 30

I 0 20 20 10 10I I 0 0 I

Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 2011

- TL-44 Outside Science & Nature Center

SB-36 Inside Science & Nature Center e- SB-35 Inside Fitness Center

-)f-- TL-68 Near Site Boundary to DFS

- TL-69 Near Site Boundary to DFS I

- - Control Average 7 stations

-&-TL-67 Outside Fitness Center I

-106-

FIGURE 4.4 DFS CONTROL RADIATION MEASUREMENTS (USING TLDs)

SEABROOK STATION 30 30 First DFS loading 20 20 0

E 10 10 0 i0 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 years

TL-41 Portsmouth, NH (Control)

TL-42 Ipswich, MA (Control)

A TL-36 Route 97 (Control)

-- TL-37 Plaistow, NH (Control) x TL-38 Hampstead NH (Control)

TL-39 Fremont, NH (Control)

Control Average 7 stations

TL-40 Newmarket, NH (Control)

-107-

I FIGURE 4.5 3 DFS RADIATION MEASUREMENTS TRENDS (USING TLDs)

SEABROOK STATION 30 30 First E3FS loading I

20- 20 E

CL -I 10 10 I

U 0 0 1 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 years 3

-- TL-10 Site Boundary Fence

-a---TL-11 Site Boundary Fence A TL-12 Site Boundary Fence

-o---TL-13 Inside Site Boundary

--- TL-14 Trailer Park

-- TL-39 Fremont, NH (Control)

-. -.--- Control Average 7 stations

i TL-40 Newmarket, NH (Control) I

-108-

FIGURE 4.6 DFS RADIATION MEASUREMENTS TRENDS (USING TLDs)

SEABROOK STATION 30- 30 First DFS loading 20I. .:* 0 20 200 Ei 10 10 0 0 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 years

-*--- TL-44 Outside Science & Nature Center

SB-36 Inside Science & Nature Center a TL-67 Outside Fitness Center s- SB-35 Inside Fitness Center x TL-68 Near Site Boundary to DFS

-- TL-69 Near Site Boundary to DFS

-- ---- Control Average 7 stations

- -K- -- TL-40 Newmarket, NH (Control)

TL-39 Fremont, NH (Control)

-109-

I 5.0 Program Deviations and Reporting U 5.1 Sampling Program Deviations i Table A.9.1-1 of the Offsite Dose Calculation Manual (ODCM) allows for deviations in the REMP sampling schedule "if specimens are unobtainable due to circumstances such as hazardous conditions, seasonal unavailability and malfunction of automatic sampling equipment." All deviations from the sampling schedule shall be documented each year in the Radiological Environmental Operating Report. The I

deviations for 2011 are as follows:

On 08/24/2011, a loss of power to air sampling station AP/CF-09 (duration approximately 2.92 hours0.00106 days 0.0256 hours 1.521164e-4 weeks 3.5006e-5 months ) was recorded due to a local power outage not related to the air sampling equipment. The 1

unit was returned to service when local power was restored. The out of service time did not impact the ability to collect sufficient sample volume over the collection cycle for analysis. I

During the change out of the 2 nd quarter, 2011 environmental TLDs (July, 2011) the TLD device at TL-42 located in Ipswich, MA (Control) was missing at the time of collection.

" On 08/28/2011, a loss of power to air sampling station AP/CF-04 (duration approximately 22.48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months ) was recorded due to a local power outage caused by a tropical storm and a subsequent blown fuse in the pump. The unit was returned to service when local power was restored and the fuse replaced.

I volume over theThe out of service collection cycle fortime did not impact the ability to collect sufficient sample analysis.

On 09/30/2011, a loss of power to air sampling station AP/CF-05 was recorded due to a power I outage not related to the air sampling equipment. The unit was returned to service when power was restored approximately 7 minutes later. The out of service time did not impact the ability to collect sufficient sample volume over the collection cycle for analysis.

On 10/02/2011, a loss of power to air sampling station AP/CF-04 was recorded due to a blown fuse in the pump. The unit was returned to service when the fuse was replaced approximately 46.60 hours6.944444e-4 days 0.0167 hours 9.920635e-5 weeks 2.283e-5 months later. The out of service time did not impact the ability to collect sufficient sample volume over the collection cycle for analysis.

I

" During the change out of the 3 rd quarter, 2011 environmental TLDs (October, 8, 2011) the TLD device at TL-03 (Glade Path, Hampton Beach) was missing at the time of collection.

3

On 10/13/2011, a loss of power to air sampling station AP/CF-02 was recorded due to a power outage not related to the air sampling equipment. The unit was returned to service when local power was restored approximately 46.6 minutes later. The out of service time did not impact the ability to collect sufficient sample volume over the collection cycle for analysis. 3 On 10/29/2011, a loss of power to several air sampling stations (listed below) was recorded due to local area power outages related to a snow storm.

Location Date/Time power Date/Time power Duration of loss I AP/CF-04 lost 10/29/11 19:56 restored 11/01/11 09:17 61.4 hrs. I AP/CF-05 10/29/11 20:39 10/29/11 21:17 38 min.

AP/CF-09 10/29/11 21:04 10/30/11 04:17 7.22 hrs I

On 11/29/2011, environmental TLD TL-10 located near the site boundary in the SSW sector was removed from the location due to excavation in the area and the removal of the utility pole the TLD was attached to. A new location several hundred feet away (also near the SSW site

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boundary) was installed in January 2012 for the relocation of TL-10. Approximately 1 month from the quarterly field integration time was not included in the standard dosimeter exposure period.

On 12/21/2011, a loss of power to air sampling station AP/CF-09 was recorded due to a power outage not related to the air sampling equipment. The unit was returned to service when power was restored approximately 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , 59 minutes later. The out of service time did not impact the ability to collect sufficient sample volume over the collection cycle for analysis.

5.2 Comparison Of Achieved LLDs With Requirements Table A.9.1-2 of the ODCM indicates the required Lower Limits of Detection (LLDs) for environmental sample analyses. (This table is duplicated in Table 5.2-1 of this report.) Occasionally an LLD for short lived radionuclides is not achieved due to low sample volume or delays between sample collection and time of analysis. In such cases, ODCM Table A.9.1-2 requires a discussion of the event in the annual Radiological Environmental Operating Report..

For each analysis having an LLD requirement in ODCM Table A.9.1-2, the a posteriori(after the fact)

Minimum Detectable Concentration (MDC) calculated for that analysis was compared with the required LLD. During 2011, 1333 analyses had an LLD requirement listed in Table 5.2-1, and in all but five cases the LLD requirements were met. The LLDs not achieved were:

Sample TypeSamleTyp

&Required

& Date Radionuclide ReqiregL LLD Achieved Acieved MDC Sample Reference Location (pCi/kg) (pCi/kg)

TG-08 09/20/2011 1-131 60 92.3 (LSN# 286562001)

TG-09 09/20/2011 1-131 60 114 (LSN# 286562002)

TG-10 06/14/2011 1-131 60 1460 (LSN# 283183001)

TG-10 09/20/2011 1-131 60 105 (LSN# 286562003)

WS-01 06/20/2011 1-131 15 16.2 (LSN# 281629001)

The cause of the missed LLDs is attributed to delays between sample collection and laboratory analysis.

Gel Labs has addressed this deficiency by changing their internal procedures to assign a high process priority for samples requiring analysis for short lived radionuclides.

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5.3 Comparison of Results Against Reporting Levels Seabrook Station ODCM Section 10.1 requires the notification of the NRC by special report within 30 days of receipt from the environmental laboratory whenever a Reporting Level in Table 5.3-1 is exceeded.

3 Reporting Levels are the environmental concentrations that relate to the ALARA design dose objectives of 10 CFR 50, Appendix I. It should be noted that environmental concentrations are averaged over calendar quarters for the purposes of this comparison, and that Reporting Levels apply only to measured levels of radioactivity due to plant effluents. During 2011, no Reporting Levels were exceeded.

I I

U I

I I

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- m - m-n -m- - - m m - mm-m m n - -

Table 5.2-1 DETECTION CAPABILITIES FOR ENVIRONMENTAL SAMPLE ANALYSISa Lower Limit of Detection (LLD)

Fish and Water Airborne Particulate or Invertebrates Milk Food Products Sediment Analysis (pCi/kg) Gas (pCi/m 3) (pCi/kg, wet) (pCi/kg) (pCi/kg, wet) (pCi/kg, dry)

Gross Beta 4 0.01 H-3 3,000 Mn-54 15 130 Fe-59 30 260 Co-58, 60 15 130 Zn-65 30 260 Zr-Nb-95 15c 1-131 15 0.07 1 60b Cs-1 34 15 0.05 130 15 60 150 18 0.06 150 18 80 180 Cs-1 37 Ba-La-1 40 15c 15

a. Reference Seabrook Station ODCM, Table A.9.1-2 for clarifications.

b. Broad leaf vegetation only.

c. Parent only.

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Table 5.3-1 REPORTING LEVELS FOR RADIOACTIVITY CONCENTRATIONS IN ENVIRONMENTAL SAMPLESa Analysis Water Airborne Particulate or Gas Fish and Milk Food Products (pCi/kg) (pCi/m 3) Invertebrates (pCi/kg) (pCi/kg, wet)

(pCi/kg, wet)

H-3 30,000 Mn-54 1,000 30,000 Fe-59 400 10,000 Co-58 1,000 30,000 Co-60 300 10,000 Zn-65 300 20,000 Zr-Nb-95 400 1-131 100 0.9 3 1,00b Cs-1 34 30 10 1,000 60 1,000 Cs-1 37 50 20 2,000 70 2,000 Ba-La-140 200 300

a. Reference Seabrook Station ODCM Table A.9.1-3 for clarifications.

b. Broad leaf vegetation only.

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6.0 QUALITY ASSURANCE PROGRAM 6.1 GEL Laboratories QA GEL's primary goals are to ensure that all measurement data generated are scientifically and legally defensible, of known and acceptable quality per the data quality objectives (DQOs), and thoroughly documented to provide sound support for environmental decisions. In addition, GEL continues to ensure compliance with all contractual requirements, environmental standards, and regulations established by local, state and federal authorities.

GEL administers the QA program in accordance with the Quality Assurance Plan, GL-QS-B-001. The Quality Systems include all quality assurance (QA) policies and quality control (QC) procedures necessary to plan, implement, and assess the work that GEL performs. GEL's QA Program establishes a quality management system (QMS) that governs all of the activities of the organization.

This report entails the quality assurance program for the proficiency testing and environmental monitoring aspects of GEL for 2011.

Quality Assurance Programs for Inter-laboratory, Intra-laboratory and Third Party Cross-Check In addition to internal and client audits, GEL laboratory participates in annual performance evaluation studies conducted by independent providers. GEL routinely participate in the following types of performance audits:

Proficiency testing and other inter-laboratory comparisons

Performance requirements necessary to retain Certifications

Evaluation of recoveries of certified reference and in-house secondary reference materials using statistical process control data.

Evaluation of relative percent difference between measurements through SPC data.

GEL also participate in a number of proficiency testing programs for federal and state agencies and as required by contracts. It is GEL's policy that no proficiency evaluation samples be analyzed in any special manner. GEL's annual performance evaluation participation generally includes a combination of studies that support the following:

" US Environmental Protection Agency Discharge Monitoring Report, Quality Assurance Program (DMR-QA). Annual national program sponsored by EPA for laboratories engaged in the analysis of samples associated with the NPDES monitoring program. Participation is mandatory for all holders of NPDES permits. The permit holder must analyze for all of the parameters listed on the discharge permit. Parameters include general chemistry, metals, BOD/COD, oil and grease, ammonia, nitrates, etc.

Department of Energy Mixed Analyte Performance Evaluation Program (MAPEP). A semiannual program developed by DOE in support of DOE contractors performing waste analyses. Participation is required for all laboratories that perform environmental analytical measurements in support of environmental management activities. This program includes radioactive isotopes in water, soil, vegetation and air filters.

ERA's MRAD-Multimedia Radiochemistry Proficiency test program. This program is for labs seeking certification for radionuclides in wastewater and solid waste. The program is conducted in strict compliance with USEPA National Standards for Water Proficiency study.

ERA's InterLaB RadCheM Proficiency Testing Program for radiological analyses. This program completes the process of replacing the USEPA EMSL-LV Nuclear Radiation Assessment Division program discontinued in 1998. Laboratories seeking certification for radionuclide analysis in drinking

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water also use the study. This program is conducted in strict compliance with the USEPA National Standards for Water Proficiency Testing Studies. This program encompasses Uranium by EPA method 200.8 (for drinking water certification in Florida/Primary NELAP), gamma emitters, Gross Alpha/Beta, Iodine-131, naturally occurring radioactive isotopes, Strontium-89/90, and Tritium.

" ERA's Water Pollution (WP) biannual program for waste methodologies includes parameters for both organic and inorganic analytes.

" ERA's Water Supply (WS) biannual program for drinking water methodologies includes parameters I for organic and inorganic analytes.

Environmental Cross-Check Program administered by Eckert & Ziegler Analytics, Inc. This program i encompasses radionuclides in water, soil, milk, naturally occurring radioactive isotopes in soil and air filters.

GEL procures single-blind performance evaluation samples from Eckert &Ziegler Analytics to verify the analysis of sample matrices processed at GEL. Samples are received on a quarterly basis. GEL's Third-I Party Cross-Check Program provides environmental matrices encountered in a typical nuclear utility REMP.

The Third-Party Cross-Check Program is intended to meet or exceed the inter-laboratory comparison program requirements discussed in NRC Regulatory Guide 4.15, revision 1. Once performance evaluation U

samples have been prepared in accordance with the instructions provided by the TP provider, samples are managed and analyzed in the same manner as environmental samples from GEL's clients.

Quality Assurance Program for Internal and External Audits During each annual reporting period, at least one internal assessment is conducted in accordance with the pre-established schedule from Standard Operating Procedure for the Conduct of Quality Audits, GL-QS-E001. The annual internal audit plan is reviewed for adequacy and includes the scheduled frequency and scope of quality control actions necessary to GEL's QA program. Internal audits are conducted at least annually in accordance with a schedule approved by the Quality Systems Director. Supplier audits are contingent upon the categorization of the supplier, and may or may not be conducted prior to the use of a supplier or subcontractor. Type I suppliers and subcontractors, regardless of how they were initially qualified, are re-evaluated at least once every three years.

In addition, prospective customers audit GEL during pre-contract audits. GEL hosts several external audits each year for both GEL clients and other programs. These programs include environmental monitoring, waste characterization, and radiobioassay. The following list of programs may audit GEL at least annually or up to every three years depending on the program.

" NELAC, National Environmental Laboratory Accreditation Program

DOECAP, U.S. Department of Energy Consolidated Audit Program

DOELAP, U.S. Department of Energy Laboratory Accreditation Program

" DOE QSAS, U.S. Department of Energy, Quality Systems for Analytical Services

ISO/IEC 17025

" A2LA, American Association for Laboratory Accreditation

DOD ELAP, US Department of Defense Environmental Accreditation Program NUPIC, Nuclear Procurement Issues Committee South Carolina Department of Heath and Environmental Control (SC DHEC)

I The annual radiochemistry laboratory internal audit (11 -RAD-001) was conducted in March 2011. Two (2) findings, three (3) observations, and four (4) recommendations resulted from this assessment. In April 2011, each finding was closed and appropriate laboratory staff addressed each observation and recommendation.

I The Nuclear Procurement Issues Committee (NUPIC) audit was conducted on November 14, 2011 through November 18, 2011. This NUPIC QA audit was performed for the activities and/or documentation/records associated with GEL Laboratories supplying general chemistry, radiochemistry and bioassay analytical

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services. This audit found that the GEL Laboratories quality system is well documented and/or implemented, and is acceptable.

With the exception of the six (6) audit findings, all of the requirements of GEL Laboratories Quality Assurance Plan audited were found to be satisfactorily implemented, and therefore, "Continued approval of GEL Laboratories as an Appendix B supplier of general chemistry, radiochemistry and bioassay analytical services is recommended."

All responses to the six findings have been adequately addressed. by GEL. The Audit Report # 22837-A for Supplier Number 5644 has been posted on the NUPIC website.

Performance Evaluation Acceptance Criteria for Environmental Sample Analysis For intra-laboratory or third party quality control programs that do not have a specific acceptance criteria (i.e.

the Eckert-Ziegler Analytics Environmental Cross-check Program), results will be evaluated in accordance with GEL's internal acceptance criteria.

Performance Evaluation Samples Performance Evaluation (PE) results and internal quality control sample results are evaluated in accordance with GEL acceptance criteria. The first criterion concerns bias, which is defined as the deviation of any one result from the known value. The second criterion concerns precision, which deals with the ability of the measurement to be replicated by comparison of an individual result with the mean of all results for a given sample set.

GEL also evaluates its analytical performance on a regular basis through statistical process control (SPC) acceptance criteria. Where feasible, this criterion is applied to both measures of precision and accuracy and is specific to sample matrix. GEL establishes environmental process control limits at least annually.

For Radiochemistry analysis, quality control evaluation is based on static limits rather than those that are statistically derived. Current process control limits are maintained in GEL's AlphaLIMS. GEL also measures precision with matrix duplicates and/or matrix spike duplicates. The upper and lower control limits (UCL and LCL, respectively) for precision are plus or minus three times the standard deviation from the mean of a series of relative percent differences. The static precision criteria for radiochemical analyses are 0 - 20%, for activity levels exceeding the contract required detection limit (CRDL).

Quality Control Pro-gram for Environmental Sample Analysis GEL's internal QA Program is designed to include QC functions such as instrumentation calibration checks (to insure proper instrument response), blank samples, instrumentation backgrounds, duplicates, as well as overall staff qualification analyses and statistical process controls. Both quality control and qualification analyses samples are used to be as similar as the matrix type of those samples submitted for analysis by the various laboratory clients. These performance test samples (or performance evaluation samples) are either actual samples submitted in duplicate in order to evaluate the precision of laboratory measurements, or fortified blank samples, which have been given a known quantity of a radioisotope that is in the interest to GEL's clients.

Accuracy (or Bias) is measured through laboratory control samples and/or matrix spikes, as well as surrogates and internal standards. The UCLs and LCLs for accuracy are plus or minus three times the standard deviation from the mean of a series of recoveries. The static limit for radiochemical analyses is 75 -

125%. Specific instructions for out-of-control situations are provided in the applicable analytical SOP.

GEL's Laboratory Control Standard (LCS) is an aliquot of reagent water or other blank matrix to which known quantities of the method analytes are added in the laboratory. The LCS is analyzed exactly like a sample, and its purpose is to determine whether the methodology is in control, and whether the laboratory is capable of making accurate and precise measurements. Some methods may refer to these samples as Laboratory

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Fortified Blanks (LFB). The requirement for recovery is between 75 and 125% for radiological analyses excluding drinking water matrix.

Bias (%) = (observed concentration)

100 %

(known concentration) I Precision is a data quality indicator of the agreement between measurements of the same property, obtained under similar conditions, and how well they conform to themselves. Precision is usually expressed as standard deviation, variance or range in either absolute or relative (percentage) terms.

GEL's laboratory duplicate (DUP or LCSD) is an aliquot of a sample taken from the same container and processed in the same manner under identical laboratory conditions. The aliquot is analyzed independently from the parent sample and the results are compared to measure precision and accuracy.

I If a sample duplicate is analyzed, it will be reported as Relative Percent Difference (RPD). The RPD must be 20 percent or less, if both samples are greater than 5 times the MDC. If both results are less than 5 times MDC, then the RPD must be equal to or less than 100%. If one result is above the MDC and the other is below the MDC, then the RPD can be calculated using the MDC for the result of the one below the MDC. The RPD must be 100% or less. In the situation where both results are above the MDC but one result is greater than 5 times the MDC and the other is less than 5 times the MDC, the RPD must be less than or equal to I

20%. If both results are below MDC, then the limits on % RPD are not applicable.

Difference (%) = (high duplicate result - low duplicate result)

100 % i (average of results)

Summary of Data Results During 2011, forty-three radioisotopes associated with seven matrix types were analyzed under GEL's Performance Evaluation program in participation with ERA, MAPEP, and Eckert & Ziegler Analytics. Matrix types were representative of client analyses performed during 2011. The list below contains the type of matrix evaluated by GEL.

" Air Filter

Cartridge

" Water

Milk

Soil

" Liquid

Vegetation A summary of GEL's quality control for radiological analyses by isotopic analysis and matrix are represented in Table 6.1-1. Each LCS and DUP represents a batch of samples for each isotopic analysis. This summary contains the number of reportable quality control results for GEL clients.

Summary of Participation in the Eckert & Ziegler Analytics Environmental Cross-Check Program During 2011, Eckert & Ziegler Analytics provided samples for 89 individual environmental analyses. The I accuracy of each result reported to Eckert & Ziegler Analytics, Inc. is measured by the ratio of GEL's result to the known value. Of the 89 analyses, 98% (87 out of 89) of all results fell within GEL's acceptance criteria.

Two analytical failures occurred with the analysis of Chromium-51 in water and Strontium-90 in milk and were addressed in the GEL Corrective Action program. The results are summarized in Table 6.1-2.

I

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Quality Control Program for REMP Analyses GEL's internal (intra-laboratory) quality control program evaluated 2314 individual analyses for bias and 2520 analyses for precision for standard REMP matrix and radionuclides. Of the internal quality control analyses evaluated for bias, all (100%) met laboratory acceptance criteria. In addition, all (100%) REMP related internal quality control analyses evaluated for precision were found to be acceptable. The results are summarized in Table 6.1-3.

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I TABLE 6.1-1 2011 RADIOLOGICAL INTRA-LABORATORY DATA

SUMMARY

BIAS AND PRECISION BY I

MATRIX LaboratoryControl Sample." DuplicatelLCs: Duplicate I

MATRIX (LCS) Bias Criteria (. 25%)j- Precision:Criteriia (Note 1)

-AND WANALYSISg WITHIN RITERIA OUTSIDE CRITERIA

'WITHIN CRITERiAA OUTSIDE CRITERIA I MILK~~?

Gamma Gamma Gamma Spec Spec Liquid with Ba, La Spec Liquid with Iodine 7

83 10 0

0 0

7 125 10 0

0 0

I Gamma Gamma Iodine-129 Iodine-131 KPA Total Uranium 2

40 0

0 0

0 2

125 2

0 0

0 I

Gas Flow Sr 2nd Count Gas Flow Strontium-90 Gas Flow Total Strontium 44 6

26 0

0 0

41 26 6

0 0

0 I

Gross Alpha/Beta ICP-MS Uranium-235,236,238

,SOID (Includ s~Misc. Soid,1$Oil, or Sludge) >

1 1

0 0

1 1

0 0

I

-Alpha Spec Alpha Spec

-Alpha Spec Uranium Polonium Thorium 661 27 488 0

0 0

637 47 499 0

0 0

I Alpha Spec Alpha Spec Neptunium Plutonium Alpha Spec Polonium 277 705 8

0 0

0 289 823 8

0 0

0 I

-Alpha Spec Radium-226 1 0 3 0 Alpha Spec Am-241, Curium

-Alpha Spec Am-243 551 61 0

0 569 65 0

0 I

Gamma Iodine-129 200 0 198 0 Gamma Nickel-59 Gamma Radium-228 154 2

0 0

155 2

0 0

I Gamma Radium-226 154 0 82 0 Gamma Spec Gamma Spec Solid (pCi/Sample) 1132 16 0

0 1121 31 0

0 I

Gamma Spec Solid with Ba, La 8 0 8 0 Gamma Spec Solid with Iodine Gamma Spec Solid with Ra-226, Ra-228 2

3 0

0 2

3 0

0 I

LSC Nickel-63 251 0 253 0 LSC Plutonium LSC Promethium-147 190 21 0

0 196 21 0

0 I

LSC Rapid Strontium 89 and 90 101 0 104 0 LSC Selenium-79 LSC Calcium-45 7

1 0

0 7

1 0

0 I

LSC Iron-55 171 0 175 0 LSC Chlorine-36 LSC Tritium 2

426 0

0 2

430 0

0 I

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TABLE 6.1-1 Continued Laboratory Control Sample DuplicatefLCS Duplicate MATRIX (LCS) Bias Criteria (+/- 25%) Precision Criteria (Note 1)

ANDp WITHIN OUTSIDE WITHIN OUTSIDE ANALYSIS CRITERIA CRITERIA CRITERIA CRITERIA LSC Organically Bound Tritium 20 0 25 0 LSC Carbon-14 237 0 243 0 LSC Technetium-99 316 0 339 0 LSC Total Activity 23 0 22 0 LSC Total Activity Screen 19 0 19 0 Lucas Cell Radium-226 37 0 38 0 Lucas Cell Radium-226 HASL 300 Ra-04 4 0 3 0 KPA Total Uranium 8 0 12 0 ICP-MS Uranium-233, 234 95 0 101 0 ICP-MS Technetium-99 228 0 234 0 ICP-MS Uranium-233, 234 93 0 90 0 ICP-MS Uranium-235, 236, 238 152 0 137 0 ICP-MS Uranium-234, 235, 236, 238 99 0 93 0 Gas Flow Sr 2nd Count 25 0 26 0 Gas Flow Strontium-90 380 0 385 0 Gas Flow Total Strontium 45 0 46 0 Gas Flow Total Radium 3 0 3 0 Gas Flow Radium-228 2 0 2 0 Gas Flow Radium-228 21 0 20 0 Gas Flow Lead-210 36 0 37 0 Gross Alpha/Beta 493 0 478 0 Gross Aliha/Beta iAmericium Calibration 1 0 1 0 Alpha Spec Uranium 106 0 132 0 Alpha Spec Polonium 1 0 10 0 Alpha Spec Thorium 54 0 87 0 Alphaspec Np (Filter/Liter) 25 0 37 0 Alphaspec Pu (Filter/Liter) 24 0 32 0 Alpha Spec Plutonium 173 0 206 0 Alpha Spec Neptunium 72 0 83 0 Alpha Spec Polonium (Filter/Liter) 0 0 8 0 Alpha Spec Am-241, Curium 118 0 144 0 Alphaspec Am-241, Curium (Filter/Liter) 35 0 49 0 Alpha Spec Am-243 8 0 9 0 Gamma Spec Filter Direct Count 2 0 2 0 Gamma Spec 369 0 393 0 Gamma Nickel-59 93 0 106 0 Gamma Iodine-131 9 0 9 0 Gamma Iodine-125 12 0 0 0 Gamma Iodine-129 123 0 131 0 LSC Total Activity 3 0 4 0 LSC Plutonium 93 0 115 0 LSC Iron-55 99 0 108 0 LSC Nickel-63 104 0 126 0

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I TABLE 6.1-1 Continued Laboratory Control Sample Duplicate/LCS9 Dupiicate:,

I MATRIX AND

-ANALYSIS

-WITHIN (LCS) Bias -Criteria (+/- 25%)

CRITERIA OUTSIDE CRITERIA Precision Criteria (Note 1)

WITHIN CRITERIA OUTSIDE CRITERIA I

LSC LSC LSC Selenium-79 Promethium-147 Rapid Strontium 89 and 90 0

3 100 0

0 0

1 5

125 0

0 0

I LSC LSC LSC Iron-55 Nickel-63 Plutonium (Filter/Liter) 29 26 29 0

0 0

37 31 34 0

0 0

I LSC Technetium-99 83 0 123 0 LSC LSC Tritium Carbon-14 185 140 0

0 261 163 0

0.

I KPA Total Uranium 7 0 10 0 Gas Flow Sr 2nd Count Gas Flow Strontium-90 87 51 0

0 96 74 0

0 I

Gas Flow Total Radium 1 0 1 0 Gas Flow Total Strontium Gas Flow Pb-210 4

22 0

0 25 38 0

0 I

Gas Flow Ra-228 25 0 30 0 Gross Alpha/Beta Direct Count-Gross Alpha/Beta 614 130 0

0 637 5

0 0

I Lucas Cell Ra-226 31 0 43 0 ICP-MS Uranium-234, 235, 236, 238 LIQUID (Includes Misc. Liquid) 0 0 3 0

I Alpha Spec Uranium 552 0 714 0 Alpha Spec Polonium Alpha Spec Am-243 5

10 0

0 5

17 0

0 I

Alpha Spec Thorium 223 0 335 0 Alpha Spec Plutonium Alpha Spec Neptunium 362 105 0

0 560 159 0

0 I Alpha Spec Am-241, Curium 300 0 444 0 Electrolytic Tritium Gamma Spec 19 794 0

0 25 780 0

0 I Gamma Nickel-59 39 0 49 0 Gamma Iodine-129 Gamma Iodine-131 Gamma Radium-228 71 33 0

0 0

0 136 103 1

0 0

0 I

Gamma Spec Liquid with Ba, La Gamma Spec Liquid with Iodine KPA Total Uranium 104 133 87 0

0 0

140 129 170 0

0 0

I ICP-MS Technetium-99 ICP-MS Uranium-238 LSC Total Activity 30 0

12 0

0 0

49 16 21 0

0 0

I LSC Tritium LSC Carbon-14 LSC Technetium-99 1129 203 275 0

0 0

1199 237 321 0

0 0

I LSC Iron-55 180 0 232 0 I

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TABLE 6.1-1 Continued Laboratory Control Sample Dupi~cate>ILCS Duiplicate MATRIX (LCS) Bias Criteria (+/- 25%) Precision Criteria (Note 1)

AND WITHIN OUTSIDE WITHIN OUTSIDE ANALYSIS CRITERIA CRITERIA CRITERIA CRITERIA LSC Nickel-63 209 0 242 0 LSC Plutonium 77 0 108 0 LSC Radon-222 24 0 25 0 LSC Promethium-147 5 0 18 0 LSC Rapid Strontium 89 and 90 13 0 13 0 LSC Sulfur-35 9 0 9 0 LSC Phosphorus-32 9 0 9 0 LSC Calcium-45 2 0 2 0 Chlorine-36 5 0 9 0 Lucas Cell Radium-226 379 0 416 0 Gas Flow Lead-21 0 92 0 98 0 Gas Flow Radium-228 311 0 350 0 Gas Flow Sr 2nd Count 226 0 246 0 Gas Flow Strontium-90 473 0 556 0 Gas Flow Strontium 89 & 90 7 0 4 0 Gas Flow Total Radium 50 0 75 0 Gas Flow Total Strontium 135 0 130 0 Gas Flow Total Alpha Radium 6 0 5 0 Gross Alpha/Beta 1242 0 1338 0 Gross Alpha Co-precipitation 11 0 15 0 Gross Alpha Beta (Americium Calibration) 17 0 17 0 ICP-MS Uranium-233, 234 19 0 33 0 ICP-MVS Uranium-235, 236, 238 26 0 40 0 ICP-MS Uranium-234, 235, 236, 238 2 0 33 0 Alpha Spec Uranium 5 0 5 0 Alpha Spec Thorium 3 0 3 0 Alpha Spec Plutonium 5 0 5 0 Alpha Spec Neptuniumn 2 0 2 0 Alpha Spec Plutonium 2 0 2 0 Alpha Spec Am-241, Curium 7 0 7 0 Gamma Nickel-59 2 0 2 0 Gamma Spec 66 0 67 0 Gamma Iodine-I 29 2 0 2 0 Gamma Spec Solid with Ba, La 7 0 7 0 Gamma Spec Solid with Iodine 17 0 19 0 LSC Nickel-63 9 0 9 0 LSC Plutonium 2 0 2 0 LSC lron-55 7 0 7 0 LSC Carbon-14 2 0 2 0 LSC Technetium-99 3 0 3 0 LSC Tritium 1 0 1 0 LSC Organically Bound Tritium 1 0 1 0 Lucas Cell Radium-226 1 0 1 0

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I TABLE 6.1-1 Continued MATRIX ~ LaboratoryControl Sanmple XLCS) Bias Criteria (+/- 25%)

DDuplicateiLCS Duplicate".

Precision Criteria (Note 1) :

I AND ~§~

ANALYSISCRITERIA Gas Flow Sr 2nd Count WITHIN 19 OUTSIDE CRITERIA 0

WITHIN

'CRITERIA 19 OUTSIDE CRITERIA 0

I Gas Flow Strontium-90 Gas Flow Total Strontium Gas Flow Lead-210 17 12 2

0 0

0 17 12 2

0 0

0 I

Gross Alpha/Beta Alpha Spec Uranium 20 26 0 20 17 0 I

Alpha Spec Thorium 6 0 6 0 Alpha Spec Plutonium Alpha Spec Am-241 (pCi/Sample) 18 10 0

0 11 3

0 0

I I

Alpha Spec Am-241, Curium 6 0 4 0 Gamma Spec 16 0 15 0 Gamma Spec Solid with Iodine 83 0 82 0 Gamma Spec Solid (pCi/Sample)

LSC Plutonium LSC Carbon-14 4

1 3

0 0

0 2

1 3

0 0

0 I

I LSC Tritium 4 0 4 0 Gas Flow Sr 2nd Count 9 0 9 0 Gas Flow Strontium-90 18 0 11 0 Gas Flow Total Strontium 5 0 5 0 Gross Alpha/Beta Alpha Spec Uranium 8

2 0

0 8

2 0

0 I

Alpha Spec Plutonium Alpha Spec Am-241, Curium 2

2 0

0 2

2 0

0 I

Gamma Iodine-131 420 0 421 0 Gamma Iodine-129 Gamma Spec 2

5 0

0 2

5 0

0 I

Gamma Spec Gamma Iodine-129 16 2

0 0

16 6

0 0

I Gamma Iodine-131 27 0 40 0 Gamma Spec Liquid with Ba, La Gamma Spec Liquid with Iodine LSC Tritium by EPA 906.0 74 64 4

0 0

0 73 4

74 0

0 0

I LSC Iron-55 LSC Nickel-63 LSC Radon-222 11 12 60 0

0 0

11 14 63 0

0 0

I LSC Calcium-45 LSC Phosphorus-32 KPA Total Uranium 3

2 18 0

0 0

-3 2

36 0

0 0

I Lucas Cell Radium-226 Gas Flow Radium-228 Gas Flow Sr 2nd Count 140 127 11 0

0 0

137 103 13 0

0 0

I I

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TABLE 6.1-1 Continued Labortory-CnrlSiple DuplicateilLCS Duplicate MATRIX /LS B/ias Citeia (+/- 25%) I' Precisi on C ritria' te4l)

>~q < ~AND) WITHIN OUTSIDE U WITHIN OUTSIDE

,A ýAALYSI S CRITERIA CRITERIA ~'CRITERIA -CRITERIA Gas Flow Strontium-90 21 0 21 0 Gas Flow Strontium 89 & 90 15 0 15 0 Gas Flow Total Alpha Radium 4 0 4 0 Gas Flow Total Strontium 7 0 12 0 Gross Alpha/Beta 284 0 224 0 Gross Alpha Co-precipitation 98 0 80 0 Alpha/Beta (Americium Calibration) 9 0 9 0 Gross Alpha 48 Hr Rapid 7 0 7 0 TOTAL: 20958 0 23066 0 Note 1: The RPD must be 20 percent or less, if both samples are greater than 5 times the MDC. If both results are less than 5 times MDC, then the RPD must be equal to or less than 100%. If one result is above the MDC and the other is below the MDC, then the RPD can be calculated using the MDC for the result of the one below the MDC. The RPD must be 100% or less. In the situation where both results are above the MDC but one result is greater than 5 times the MDC and the other is less than 5 times the MDC, the RPD must be less than or equal to 20%. If both results are below MDC, then the limits on % RPD are not applicable. .

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I Table 6.1-2:

I 2011 ECKERT & ZIEGLER ANALYTICS PERFORMANCE EVALUATION RESULTS

SUMMARY

Quarter / Analysis Sample Sample Analyte I GEL Known Acceptance I Year Date Number Media Unit Nuclide Value, value Range/ Ratio Evaluation 1st / 2011 1st / 2011 1st / 2011 01/11/11 01/11/11 01/11/11 E7465-278 E7466-278 E7466-278 Cartridge Milk Milk pCi pCi/L pCi/L Iodine-1 31 Strontium-89 Strontium-90 1.03E+02 9.23E+01 1.27E+01 9.47E+01 9.74E+01 1.58E+01 1.09 0.95 0.80 Acceptable Acceptable Acceptable I

I st / 2011 Ist / 2011 1st / 2011 01/11/11 01/11/11 01/11/11 E7467-278 E7467-278 E7467-278 Milk Milk Milk pCi/L pCi/L pCi/L Iodine-131 Chromium-51 Cesium-134 1.OOE+02 3.27E+02 1.19E+02 9.69E+01 2.98E+02 1.30E+02 1.03 1.10 0.91 Acceptable Acceptable Acceptable I

1st / 2011 lst/2011 1st / 2011 01/11/1 1 01/11/11 01/11/11 E7467-278 E7467-278 E7467-278 Milk Milk Milk pCi/L pCi/L pCi/L Cesium-137 Cobalt-58 Manganese-54 2.20E+02 1.18E+02 2.78E+02 2.05E+02 1.13E+02 2.66E+02 1.07 1.04 1.04 Acceptable Acceptable Acceptable U

1st / 2011 I st / 2011 1 st / 2011 01/11/11 01/11/11 01/11/11 E7467-278 E7467-278 E7467-278 Milk Milk Milk pCi/L pCi/L pCi/L Iron-59 Zinc-65 Cobalt-60 1.94E+02 2.88E+02 1.76E+02 1.75E+02 2.61E+02 1.72E+02 1.11 1.10 1.03 Acceptable Acceptable Acceptable I

1st / 2011 lst/2011 1st / 2011 01/11/11 01/11/11 01/11/11 E7468-278 E7468-278 E7468-278 Water Water Water pCi/L pCi/L pCi/L Iodine-131 Chromium-51 Cesium-134 9.73E+01 2.16E+02 8.52E+01 9.40E+01 1.96E+02 8.56E+01 1.04 1.10 0.99.

Acceptable Acceptable Acceptable I

1st / 2011 1st / 2011 1st / 2011 01/11/11 01/11/11 01/11/11 E7468-278 E7468-278 E7468-278 Water Water Water pCi/L pCi/L pCi/L Cesium-137 Cobalt-58 Manganese-54 1.47E+02 7.71E+01 1.88E+02 1.35E+02 7.44E+01 1.75E+02 1.09 1.04 1.08 Acceptable Acceptable Acceptable I

pCi/L I

1st / 2011 01/11/11 E7468-278 Water Iron-59 1.26E+02 1.15E+02 1.10 Acceptable 1st / 2011 01/11/11 E7468-278 Water pCi/L Zinc-65 1.90E+02 1.72E+02 1.11f Acceptable 1st / 2011 01/11/11 E7468-278 Water pCi/L Cobalt-60 1.14E+02 1.13E+02 1.01 Acceptable U

2nd / 2011 07/25/11 E7859-278 Cartridge oCi Iodine-131 8.17E+01 8.65E+01 0.95 Acceptable 2nd / 2011 07/25/11 E7860-278 Milk pCi/L Strontium-89 9.68E+01 1.03E+02 0.94 Acceptable 2nd / 2011 07/25/11 E7860-278 Milk pCi/L Strontium-90 1.58E+01 1.56E+01 1.01 Acceptable pCi/L I

2nd / 2011 07/25/11 E7861-278 Milk Iodine-131 9.OOE+01 1.03E+02 0.87 Acceptable 2nd / 2011 07/25/11 E7861-278 Milk pCi/L Cerium-141 8.36E+01 7.99E+01 1.05 Acceptable 2nd / 2011 07/25/11 E7861-278 Milk pCi/L Chromium-51 2.39E+02 2.06E+02 1.16 Acceptable 2nd / 2011 07/25/11 E7861-278 Milk pCi/L Cesium-134 1.71 E+02 1.90E+02 0.90 Acceptable 2nd / 2011 07/25/11 E7861-278 Milk pCi/L Cesium-137 1.43E+02 1.38E+02 1.04 Acceptable 2nd / 2011 07/25/11 E7861-278 Milk pCi/L Cobalt-58 .1.50E+02 1.52E+02 0.99 Acceptable 2nd / 2011 07/25/11 E7861-278 Milk pCi/L Manganese-54 1.32E+02 1.38E+02 0.96 Acceptable 2nd / 2011 2nd / 2011 07/25/11 07/25/11 E7861-278 E7861-278 Milk Milk pCi/L pCi/L Iron-59 Zinc-65 1.43E+02 2.76E+02 1.23E+02 2.61 E+02 1.16 1.06 Acceptable Acceptable I

2nd / 2011 07/25/11 E7861-278 Milk pCi/L Cobalt-60 1.92E+02 1.95E+02 0.99 Acceptable 2nd / 2011 2nd / 2011 07/25/11 07/25/11 E7862-278 E7862-278 Water Water pCi/L pCi/L Zinc-65 Cobalt-60 3.47E+02 2.38E+02 3.05E+02 2.28E+02 1.14 1.05 Acceptable Acceptable I

2nd / 2011 07/25/11 E7862-278 Water pCi/L Iodine-131 1.20E+02 1.01 E+02 1.19 Acceptable 2nd / 2011 2nd / 2011 07/25/11 07/25/11 E7862-278 E7862-278 Water Water pCi/L pCi/L Cerium-141 Chromium-51 9.30E+-01 3.36E+02 9.35E+01 2.41 E+02 0.99 1.39 Acceptable Not Acceptable I

1 2nd / 2011 07/25/11 E7862-278 Water pCi/L Cesium-1 34 2.02E+02 2.22E+02 0.91 Acceptable 2nd / 2011 07/25/11 E7862-278 Water pCi/L Cesium-1 37 1.73E+02 1.61 E+02 1.07 Acceptable 2nd / 2011 07/25/11 E7862-278 Water pCi/L Manganese-54 1.66E+02 1.61 E+02 1.03 Acceptable I

2nd / 2011 07/25/11 E7862-278 Water pCi/L Iron-59 1.57E+02 1.44E+02 1.09 Acceptable

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TABLE 6.1-2 Continued Quarter I Analysis Sample Sample Analyte I GEL Known Acceptance Year Date Number Media Unit Nuclide Value value Rangel Ratio Evaluation 3rd / 2011 10/19/11 E8095-278 Cartridge pCi Iodine-131 7.69E+01 8.02E+01 0.96 Acceptable 3rd / 2011 10/19/11 E8096-278 Milk pCi/L Strontium-89 9.51E+01 9.08E+01 1.05 Acceptable Not 3rd / 2011 10/19/11 E8096-278 Milk pCi/L Strontium-90 8.49E+00 1.47E+01 0.58 Acceptable 3rd / 2011 10/19/11 E8097-278 Milk pCi/L Iodine-131 8.59E+01 8.92E+01 0.96 Acceptable 3rd / 2011 10/19/11 E8097-278 Milk pCi/L Cerium-141 6.59E+01 6.67E+01 0.99 Acceptable 3rd / 2011 10/19/11 E8097-278 Milk pCi/L Chromium-51 2.18E+02 2.26E+02 0.96 Acceptable 3rd / 2011 10/19/11 E8097-278 Milk pCi/L Cesium-134 1.20E+02 1.28E+02 0.94 Acceptable 3rd / 2011 10/19/11 E8097-278 Milk pCi/L Cesium-137 1.23E+02 1.14E+02 1.08 Acceptable 3rd / 2011 10/19/11 E8097-278 Milk pCi/L Cobalt-58 9.08E+01 9.75E+01 0.93 Acceptable 3rd / 2011 10/19/11 E8097-278 Milk pCi/L Manganese-54 1.57E+02 1.51E+02 1.04 Acceptable 3rd / 2011 10/19/11 E8097-278 Milk pCi/L Iron-59 5.30E+01 5.48E+01 0.97 Acceptable 3rd / 2011 10/19/11 E8097-278 Milk pCi/L Zinc-65 1.88E+02 1.80E+02 1.04 Acceptable 3rd / 2011 10/19/11 E8097-278 Milk pCi/L Cobalt-60 1.51 E+02 1.57E+02 0.96 Acceptable 3rd / 2011 10/19/11 E8098-278 Water pCi/L Iodine-131 7.23E+01 8.01E+01 0.9 Acceptable 3rd / 2011 10/19/11 E8098-278 Water pCi/L Cerium-141 9.06E+01 9.15E+01 0.99 Acceptable 3rd / 2011 10/19/11 E8098-278 Water pCi/L Chromium-51 3.19E+02 3.10E+02 1.03 Acceptable 3rd / 2011 10/19/11 E8098-278 Water pCi/L Cesium-134 1.57E+02 1.76E+02 0.89 Acceptable 3rd / 2011 10/19111 E8098-278 Water pCi/L Cesium-1 37 1.60E+02 1.56E+02 1.03 Acceptable 3rd / 2011 10/19/11 E8098-278 Water pCi/L Cobalt-58 1.34E+02 1.34E+02 1.00 Acceptable 3rd / 2011 10/19/11 E8098-278 Water pCi/L Manganese-54 2.19E+02 2.07E+02 1.06 Acceptable 3rd / 2011 10/19/11 E8098-278 Water pCi/L Iron-59 9.04E+01 7.52E+01 1.20 Acceptable 3rd / 2011 10/19/11 E8098-278 Water pCi/L Zinc-65 2.74E+02 2.47E+02 1.11 Acceptable 3rd / 2011 10/19/11 E8098-278 Water pCi/L Cobalt-60 2.25E+02 2.15E+02 1.04 Acceptable 4th / 2011 01/12/12 E8197-278 Cartridge pCi Iodine-131 9.52E+01 9.82E+01 1.07 Acceptable 4th / 2011 01/12/12 E8198-278 Milk pCi/L Strontium-89 8.78E+01 8.96E+01 0.98 Acceptable 4th / 2011 01/12/12 E8198-278 Milk pCi/L Strontium-90 1.51 E+01 1.48E+01 1,02 Acceptable 4th / 2011 01/12/12 E8199-278 Milk pCi/L Iodine-131 9.36E+01 9.02E+01 1.04 Acceptable 4th / 2011 01/12/12 E8199-278 Milk pCi/L Chromium-51 5.53E+02 5.66E+02 0.98 Acceptable 4th / 2011 01/12/12 E8199-278 Milk pCi/L Cesium-134 1.59E+02 1.71 E+02 0.93 Acceptable 4th / 2011 01/12/12 E8199-278 Milk pCi/L Cesium-137 2.27E+02 2.10E+02 1.08 Acceptable 4th / 2011 01/12/12 E8199-278 Milk pCi/L Cobalt-58 2.18E+02 2.21E+02 0.99 Acceptable 4th /2011 01/12/12 E8199-278 Milk pCi/L Manganese-54 2.52E+02 2.41E+02 1.05 Acceptable 4th / 2011 01/12/12 E8199-278 Milk pCi/L Iron-59 1.90E+02 1.83E+02 1.04 Acceptable 4th / 2011 01/12/12 E8199-278 Milk pCi/L Zinc-65 3.19E+02 2.91E+02 1.09 Acceptable 4th / 2011 01/12/12 E8199-278 Milk pCi/L Cobalt-60 2.82E+02 2.70E+02 1.04 Acceptable 4th / 2011 01/12/12 E8200-278 Water pCi/L Iodine-131 8.44E+01 8.87E+01 0.95 Acceptable 4th / 2011 01/12/12 E8200-278 Water pCi/L Chromium-51 5.32E+02 5.66E+02 0.94 Acceptable 4th / 2011 01/12/12 E8200-278 Water pCi/L Cesium-134 1.56E+02 1.71 E+02 0.91 Acceptable 4th /2011 01/12/12 E8200-278 Water pCi/L Cesium-137 2.06E+02 210OE+02 0.98 Acceptable 4th / 2011 01/12/12 E8200-278 Water pCi/L Cobalt-58 2.02E+02 2.21 E+02 0.92 Acceptable 4th / 2011 01/12/12 E8200-278 Water pCi/L Manganese-54 2.50E+02 2.41 E+02 1.04 Acceptable 4th / 2011 01/12/12 E8200-278 Water pCi/L Iron-59 1.81 E+02 1.83E+02 0.99 Acceptable 4th / 2011 01/12/12 E8200-278 Water pCi/L Zinc-65 2.95E+02 2.91 E+02 1.01 Acceptable 4th / 2011 01/12/12 E8200-278 Water pCi/L Cobalt-60 2.58E+02 2.70E+02 0.96 Acceptable

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I TABLE 6.1-3 2011 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (REMP) I INTRA-LABORATORY DATA

SUMMARY

BIAS AND PRECISION BY MATRIX

~MATRIX

~j~L:;aboratory Control Sample (LCS) Bias Criteria (+/- 25%)

DuplhcatefLCS Duplicate Precision Criteria (Note 1)

I MILK AND SANALYSIS WITHIN, CRITERIA OUTSIDE CRITERIA WITHIN CRITERIA OUTSIDE CRITERIA I Gamma Iodine-131 Gamma Spec Liquid with Ba, La Gas Flow Sr 2nd Count 40 83 38 0

0 0

125 125 38 0

0 0

1 I

Gas Flow Total Strontium 26 0 26 0 Gamma Spec 24 0 24 0 Gamma Spec Solid with Ba, La 8 0 8 0 Gamma Spec Solid with Iodine LSC Iron-55 2

4 0

0 2

4 0

0 I

LSC Nickel-63 4 0 4 0 Gas Flow Sr 2nd count Gas Flow Total Strontium 8

7 0

0 8

7 0

0 I

Alpha Spec Am-241, Curium Gamma Spec 9

72 0

0 9

72 0

0 I

Gamma Iodine-131 5 0 5 0 Gas Flow Sr 2nd Count Gas Flow Strontium-90 6

7 0

0 7

7 0

0 I

Gas Flow Total Strontium 3 0 13 0 Direct Count-Gross Alpha/Beta Gross Alpha/Beta 5

448 1 0

0 1458 5

10 0

U Alpha Spec Uranium Alpha Spec Plutonium Alpha Spec Am-241, Curium 3

3 0

0 3

3 0

0 I 5 0 5 0 Gamma Spec Gamma Spec Liquid with Ba, La Gamma Spec Liquid with Iodine 32 100 51 0

0 0

32 136 52 0

0 0

I Gamma Iodine-131 LSC Tritium LSC Iron-55 22 231 25 0

0 0

36 227 26 0

0 0

I LSC Nickel-63 Gas Flow Sr 2nd count Gas Flow Total Strontium 25 26 63 0

0 0

24 25 58 0

0 0

I Gross Alpha/Beta Gamma Spec 86 37 0

0 75 38 0

0 I

Gamma Spec Solid with Ba, La Gamma Spec Solid with Iodine LSC Nickel-63 7

17 7

0 0

0 7

19 7

0 0

0 I

I

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TABLE 6.1-3 Continued Laboratory Control Sample DuplicatelLCS Duplicate MATRIX (LCS) Bias Criteria (+/- 25%) Precision Criteria (Note 1)

AND WITHIN OUTSIDE WITHIN OUTSIDE ANALYSIS CRITERIA CRITERIA CRITERIA CRITERIA Gas Flow Sr 2nd count 19 0 19 0 Gas Flow Total Strontium 12 0 12 0 Gamma Spec 3 0 3 0 Gamma Spec Solid with Iodine 83 0 82 0 Gas Flow Sr 2nd count 9 0 9 0 Gas Flow Total Strontium 4 0 4 0 Gamma Iodine-131 420 421 0 Gamma Iodine-131 27 0 40 0 Gamma Spec Liquid with Ba, La 73 0 72 0 LSC Tritium 28 0 28 0 LSC Iron-55 11 0 11 0 LSC Nickel 63 10 0 12 0 Gas Flow Sr 2nd count 11 0 13 0 Gas Flow Total Strontium 7 0 12 0 Gross Alpha/Beta 58 0 62 0 TOTAL: 2314 0 2520 0 Note 1: The RPD must be 20 percent or less, ifboth samples are greater than 5 times the MDC. If both results are less than 5 times MDC, then the RPD must be equal to or less than 100%. If one result is above the MDC and the other is below the MDC, then the RPD can be calculated using the MDC for the result of the one below the MDC. The RPD must be 100% or less. In the situation where both results are above the MDC but one result is greater than 5 times the MDC and the other is less than 5 times the MDC, the RPD must be less than or equal to 20%. If both results are below MDC, then the limits on % RPD are not applicable.

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6.2 Environmental TLD QA Environmental dosimetry services for the reporting period of January - December, 2011 were provided through Stanford Dosimetry, with TLD processing by the Environmetal Dosimetry Company (EDC), Sterling, Massachusetts. The TLD systems at the Environmental Dosimetry Company (EDC) are calibrated and operated to ensure consistent and accurate evaluation of TLDs. The quality of the dosimetric results reported to EDC clients is ensured by in-house performance testing and independent performance testing by EDC clients.

The purpose of the dosimetry quality assurance program is to provide performance documentation of the routine processing of EDC dosimeters. Performance testing provides a statistical measure of the bias and precision of dosimetry processing against a reliable standard, which in turn points out any trends or performance changes. Dosimetry quality control tests are performed on EDC Panasonic 814 Environmental dosimeters. These tests include: (1) the in-house testing program conducted by the EDC QA Officer and (2) independent test perform by EDC clients. In-house test are performed using six pairs of 814 dosimeters, a pair is reported as an individual result and six pairs are reported as the mean result.

Excluded from this report are instrumentation checks. Although instrumentation checks represent an important aspect of the quality assurance program, they are not included as process checks in this report.

Instrumentation checks represent between 5-10% of the TLDs processed.

Table 6.2-1 provides a summary of individual dosimeter results evaluated against the EDC internal acceptance criteria for high-energy photons (Cs-1 37) only. The internal acceptance (tolerance) criteria for the Panasonic Environmental dosimeters are: +/- 15% for bias and +/- 12.8% for precision. During this period, 100%

(72/72) of the individual dosimeters, evaluated against these criteria met the tolerance limits for accuracy and 100% (72/72) met the criterion for precision.

Table 6.2-2 provides the Bias + Standard deviation results for each group (N=6) of dosimeters evaluated against the internal tolerance criteria. Overall, 100% (12/12) of the dosimeter sets evaluated against the internal tolerance performance criteria met these criteria.

Table 6.2-3 presents the independent blind spike results for irradiated dosimeters provided by client utilities during this annual period. All results passed the performance acceptance criterion.

Table 6.2-4 presents the independent blind duplicate results for dosimeters co-located with field dosimeters provided by the client utility (Seabrook Station) during the annual period. All results passed the performance criteria of agreement to within 20% (within 3-sigma) of the field dosimeter.

TABLE 6.2-1 PERCENTAGE OF INDIVIDUAL DOSIMETERS THAT PASSED EDC INTERNAL CRITERIA JANUARY- DECEMBER 2011(1)' (2)

Dosi*ete* Type Number % Passed Bias Criteria % Passed Precision Criteria Tested Panasonic Environmental 72 100 100

(')This table summarizes results of tests conducted by EDC. I (2)Environmental dosimeter results are free in air.

I

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TABLE 6.2-2 MEAN DOSIMETER ANALYSES (N=6)

JANUARY - DECEMBER 2011(1)'(2) 04/22/2011 3.0 1.9 Pass 05/02/2011 8.0 1.4 Pass 05/18/2011 0.2 1.4 Pass 07/21/2011 6.2 0.6 Pass 08/05/2011 5.4 0.6 Pass 08/16/2011 7.0 1.1 Pass 10/14/2011 -1.6 1.7 Pass 11/07/2011 0.4 0.8 Pass 01/19/2012 -1.0 1.3 Pass 01/22/2012 -3.1 1.8 Pass 01/29/2012 4.9 1.2 Pass 02/09/2012 -1.6 1.5 Pass (1)This table summarizes results of tests conducted by EDC for TLDs issued in 2011.

(2) Environmental dosimeter results are free in air.

TABLE 6.2-3

SUMMARY

OF INDEPENDENT BLIND SPIKE DOSIMETER TESTING JANUARY - DECEMBER 2011(1), (2) 1 st Qtr.2011 Millstone -1.3 1.0 Pass 2n Qtr.2011 Millstone -5.0 1.3 Pass 2n Qtr.2011 Seabrook 2.0 1.8 Pass 3' Qtr. 2011 Millstone -2.1 2.9 Pass 43 Qtr.2011 Millstone 7.8 2.8 Pass 41h Qtr.2011 Seabrook 1.7 2.0 Pass (1)Performance criteria is +/- 30%.

(2) Blind spike irradiations using Cs-1 37

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U TABLE 6.2-4

SUMMARY

OF INDEPENDENT BLIND DUPLICATE DOSIMETER TESTING U

JANUARY- DECEMBER 2011(1)

I 1st Qtr.2011 Seabrook 6 -1.8 3.9 100 U 2nd Qtr.2011 Seabrook 6 2.7 1.6 100 3rd Qtr.2011 Seabrook 12 -2.5 5.8 100 4 "hQtr.2011 Seabrook 6 1.9 5.2 100 (1)Performance criteria is Bias % within + 20% for each test dosimeter.

I I

U I

I I

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7.0 Land Use Census The Offsite Dose Calculation Manual (ODCM Control 9.2.1) requires that a Land Use Census be conducted annually to identify the location of the nearest residence, milk animal and nearest garden of greater than 50 square meters producing broad leaf vegetation in each of the 16 meteorological sectors within five miles of the plant. The 2011 census was completed in accordance with the requirements of the ODCM. In 2011, a global positioning system was used to determine locations in the off-site environs with respect to the center of the site (Unit 1 Containment).

The nearest resident, garden and milk animal locations identified in the 2011 Land Use Census and their distances are shown in Table 7.0-1. There were no changes in the identification of nearest residents from last year's census. There were two sectors which had a new nearest garden location different from last year's land use census ( W, NNW). There was one new milk location identified within the required 8 km radius that was different from those reported in the 2010 land use census, while two previously identified locations were not identified in the 2011 land use census.

The results of this year's census also showed that the sampling locations used in the REMP continue to have the highest calculated dose commitments of available locations. In 2011, broad leaf vegetation continued as part of the sample collection and analysis program due to the absence of sufficient milk producing locations to provide REMP samples. Sampling locations for broad leaf vegetation are at the site boundary near points of highest predicted D/Q. This option continues, as opposed to public owned vegetable gardens located by the land use census, in order to ensure adequate availability of samples for REMP analysis from locations with the highest potential for detecting plant effluents.

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Table 7.0-1 I

2011 Land Use Census Results (Within 5 Miles)

I i

N 2.73 3.97 I NNE 3.09 3.09 8.1D NE 2.92 4.20 ENE 2.31 --- I E 2.56 ---

ESE SE 2.43 2.36 4.18 i

SSE 1.65 ---

S SSW 1.21 1.12 1.25 1.22 i SW 1.13 1.72 4.528 WSW W

1.87 1.32 2.27 2.18 a I WNW 1.11 1.52 NW NNW 1.22 1.04 1.18 1.96 a 6.93 I

a New locations in 2011.

bMilk location located just beyond the 8 km maximum inventory distance limit of ODCM Table I

A.9.1-1.

I

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Attachment 1: Sample Analysis Data List for 2011 FLAGS A blank Flag field indicates that the measured activity is considered positive as it is greater than the MDC and has no other qualifiers noted.

U: Target isotope was analyzed for but not detected above the MDC and LLD.

UI: Uncertain identification for gamma spectroscopy.

X: Lab-specific qualifier:

(1) False positive due the presence of radon gas in the water.

M: Reported result is less than the LLD and greater than the MDC.

DL: Measured MDC is greater than the LLD.

DL*: Near miss of MDC being within round-off difference of being greater than the LLD.

-135-

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

AL 05 279319001 6/1/2011 Ac-228 2.37E+01 2.48E+0 I 8.33E+01 AL 05 279319001 6/1/2011 Ag-108m -5.1 IE+00 4.11E+00 1.18E+01 AL 05 279319001 6/1/2011 Ag-110m 5.53E+00 5.24E+00 1.60E+01 AL 05 279319001 6/1/2011 Ba-140 3.5 1E+01 2.47E+01 8.70E+0 1 AL 05 279319001 6/1/2011 Be-7 1.65E+02 7.25E+01 2.21 E+02 AL 05 279319001 6/1/2011 Bi-214 -7.08E+00 1.17E+01 3.46E+01 AL 05 279319001 6/1/2011 Ce-141 8.2 1E+00 1.00E+01 3.26E+01 AL 05 279319001 6/1/2011 Ce-144 2.5 1E+01 2.50E+01 8.11E+01 AL 05 279319001 6/1/2011 Co-57 -2.11E+00 3.32E+00 1.04E+01 AL 05 279319001 6/1/2011 Co-58 5.15E+00 6.09E+00 2.06E+01 AL 05 279319001 6/1/2011 Co-60 -3.97E+00 6.46E+00 2.OOE+01 AL 05 279319001 6/1/2011 Cr-51 -1.59E+01 6.72E+01 2.19E+02 AL 05. 279319001 6/1/2011 Cs-134 3.79E+00 6.56E+00 2.20E+01 AL 05 279319001 6/1/2011 Cs-137 1.64E+01 7.05E+00 1.66E+01 AL 05 279319001 6/1/2011 Fe-59 -7.65E-01 1.70E+01 5.68E+01 AL 05 279319001 6/1/2011 1-131 4.38E+01 4. 1OE+01 1.37E+02 AL 05 279319001 6/1/2011 K-40 9.80E+03 5.44E+02 1.43E+02 AL 05 279319001 6/1/2011 La-140 3.5 1E+01 2.46E+01 8.70E+0 I AL 05 279319001 6/1/2011 Mn-54 -3.22E+00 5.02E+00 1.55E+01 AL 05 279319001 6/1/2011 Nb-95 4.62E+00 6.52E+00 2.20E+01 AL 05 279319001 6/1/2011 Pb-212 2.I1E+01 1.07E+01 3.09E+01 AL 05 279319001 6/1/2011 Pb-214 -1.83E+01 1.23E+01 3.46E+01 AL 05 279319001 6/1/2011 Ra-226 -7.08E+00 1.17E+01 3.46E+01 AL 05 279319001 6/1/2011 Ru-103 7.OOE+00 6.43E+00 2.13E+01 AL 05 279319001 6/1/2011 Ru-106 2.27E+01 4.24E+01 1.45E+02 AL 05 279319001 6/1/2011 Sb-124 -2.35E+01 1.18E+01 2.11E+01 AL 05 279319001 6/1/2011 Sb-125 4.55E+00 1.20E+01 3.93E+01 AL 05 279319001 6/1/2011 Se-75 1.77E+01 7.52E+00 2.3 1E+01 AL 05 279319001 6/1/2011 Th-228 2.I1E+01 1.07E+01 3.09E+01 AL 05 279319001 6/1/2011 Th-230 -7.08E+00 1.17E+01 3.46E+01 AL 05 279319001 6/1/2011 TI-208 1.13E-01 5.03E+00 1.69E+01 AL 05 279319001 6/1/2011 Zn-65 -2.93E+01 1.71E+01 4.72E+01 AL 05 279319001 6/1/2011 Zr-95 1.35E+01 1.24E+01 4.18E+01 AL 05 290638001 11/16/2011 Ac-228 2.12E+01 1.49E+01 -4.22E+01 AL 05 290638001 11/16/2011 Ag-108m -2.OOE+00 2.27E+00 7.25E+00 AL 05 290638001 11/16/2011 Ag-110m -3.84E+00 2.75E+00 8.11 E+00 AL 05 290638001 11/16/2011 Ba-140 1.39E+00 3.92E+00 1.29E+01 AL 05 290638001 11/16/2011 Be-7 2.13E+02 3.3 1E+01 7.20E+01 AL 05 290638001 11/16/2011 Ce-141 4.22E+00 4.4 1E+00 1.43E+01 AL 05 290638001 11/16/2011 Ce-144 -1.65E+01 1.62E+01 5.09E+01 AL 05 290638001 11/16/2011 Co-57 -6.83E-01 2.03E+00 6.67E+00 AL 05 290638001 11/16/2011 Co-58 -1.28E+00 2.64E+00 8.30E+00 AL 05 290638001 11/16/2011 Co-60 1.05E+00 3.99E+00 1.05E+01 AL 05 290638001 11/16/2011 Cr-51 4.66E+00 2.30E+01 7.80E+01 AL 05 290638001 11/16/2011 Cs-134 -3.77E+00 3.44E+00 1.03E+01 AL 05 290638001 11/16/2011 Cs-137 3.24E+00 3.03E+00 9.86E+00 AL 05 290638001 11/16/2011 Fe-59 -1.78E+00 5.94E+00 1.95E+01 AL 05 290638001 11/16/2011 1-131 1.17E+01 5.44E+00 1.65E+01 AL 05 290638001 11/16/2011 K-40 5.85E+03 3.27E+02 7.94E+01 AL 05 290638001 11/16/2011 La-140 1.39E+00 3.92E+00 1.29E+01 AL 05 290638001 11/16/2011 Mn-54 7.33E-01 2.59E+00 8.4 1E+00 136

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

AL AL AL 290638001 290638001 290638001 11/16/2011 11/16/2011 11/16/2011 Nb-95 Ru-103 Ru-106 9.57E+00

-2.17E-01 5.I1E+00 3.62E+00 2.56E+00 2.42E+01 1.01E+01 8.45E+00 7.95E+01 U

U U

I

-1.57E+00 5.20E+00 1.64E+01 U AL 290638001 11/16/2011 Sb-124 AL AL 290638001 290638001 11/16/2011 11/16/2011 11/16/2011 Sb-125 Se-75

-6.54E+00 1.01E+00 1.30E+01 7.06E+00 3.34E+00 9.48E+00 2.25E+01 1.08E+01 1.86E+01 U

U U

I AL 290638001 Th-228 AL AL AL 290638001 290638001 279319002 11/16/2011 11/16/2011 6/1/2011 Zn-65 Zr-95 Ac-228

-5.28E+00 5.66E-0 1 1.83E+01 7.05E+00 4.63E+00 2.03E+01 2.25E+01 1.51E+01 6.78E+01 U

U U

I U

AL AL AL 279319002 279319002 279319002 6/1/2011 6/1/2011 6/1/2011 Ag-108m Ag-1 10m Ba-140

-7.34E-01

-1.46E+00

-5.35E+00 3.30E+00 3.92E+00 2.OOE+01 1.07E+01 1.29E+01 6.34E+01 U

U I

279319002 6/1/2011 Be-7 2.46E+02 1.04E+02 1.52E+02 I

AL 6/1/2011 3.54E-02 1.03E+01 3.21 E+01 U AL 279319002 Bi-214 2.76E+00 1.13E+01 3.51E+01 U AL 279319002 6/1/2011 Ce-141 6/1/2011 -1.93E+01 2.49E+01 7.76E+01 U AL 279319002 Ce-144 AL AL AL 279319002 279319002 279319002 6/1/2011 6/1/2011 6/1/2011 Co-57 Co-58 Co-60 2.41E+00

-6.54E-02

-1.08E+01 3.36E+00 5.28E+00 5.97E+00 1.11 E+01 1.75E+01 1.57E+01 U

U U

I U

AL AL AL 279319002 279319002 279319002 6/1/2011 6/1/2011 6/1/2011 Cr-51 Cs-134 Cs-137

-4.63E+00

-2.89E+00 3.57E+00 5.75E+01 4.65E+00 3.96E+00 1.91E+02 1.46E+01 1.38E+01 U

U U

U AL 279319002 6/1/2011 Fe-59 1.33E+01 1.48E+01 4.99E+01 AL AL 279319002 279319002 6/1/2011 6/1/2011 1-131 K-40 4.14E+01 7.18E+03 4.83E+01 4.30E+02 2.OOE+01 1.63E+02 1.75E+02 6.34E+01 U

I AL 279319002 6/1/2011 La-140 -5.35E+00 AL AL AL 279319002 279319002 279319002 6/1/2011 6/1/2011 6/1/2011 Mn-54 Nb-95 Pb-212

-4.54E+00

,-8.67E+00 2.15E+01 3.95E+00 5.93E+00 1.21E+01 1.14E+01 1.55E+01 2.78E+01 U

AL AL AL 279319002 279319002 279319002 6/1/2011 6/1/2011 6/1/2011 Pb-214 Ra-226 Ru-103

-4.52E+00 3.54E-02

-5.46E+00 9.80E+00 1.03E+01 5.73E+00 3.1OE+01 3.21E+01 1.70E+01 I

AL 279319002 6/1/2011 Ru-106 -4.53E+01 3.89E+01 1.18E+02 AL AL 279319002 279319002 279319002 6/1/2011 6/1/2011 6/1/2011 Sb-124 Sb-125 Se-75

-3.65E+00

-7.44E-0 I

-1.21E+00 1.14E+01 1.07E+01 5.65E+00 3.57E+01 3.48E+01 1.89E+01 U

AL AL AL AL 279319002 279319002 279319002 6/1/2011 6/1/2011 6/1/2011 Th-228 Th-230 TI-208 2.15E+01 3.54E-02 6.5 1E+00 1.21E+01 1.03E+01 6.65E+00 2.78E+01 3.21 E+01 1.28E+01 I

I AL 279319002 6/1/2011 Zn-65 1.61E+01 1.35E+01 4.52E+01 AL 279319002 6/1/2011 Zr-95 6.60E+00 9.50E+00 3.26E+01 AL 290638002 11/16/2011 Ac-228 3.34E+01 1.98E+01 5.66E+01 AL 290638002 11/16/2011 Ag-108m -8.17E+00 3.23E+00 7.40E+00 AL AL 290638002 290638002 11/16/2011 11/16/2011 11/16/2011 Ag-110m Ba-140 4.28E-01 4.38E+00 4.82E+02 2.99E+00 5.OOE+00 5.33E+01 1.00E+01 1.71E+01 8.64E+01 I

AL 290638002 Be-7 AL AL AL 290638002 290638002 290638002 11/16/2011 11/16/2011 11/16/2011 Ce-141 Ce-144 Co-57 3.39E+00 3.26E+01 6.58E-01 4.56E+00 1.69E+01 2.16E+00 i.35E+01 5.02E+01 6.32E+00 U

U U

I U

I AL 290638002 11/16/2011 Co-58 -2.34E+00 3.34E+00 1.04E+01 137 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

AL 55 290638002 11/16/2011 Co-60 9.98E-02 4.04E+00 1.33E+01 U AL 55 290638002 11/16/2011 Cr-51 1.28E+01 2.58E+01 8.56E+01 U AL 55 290638002 11/16/2011 Cs-134 8.04E+00 4.82E+00 1.56E+01 U AL 55 290638002 11/16/2011 Cs-137 -9.01E+00 4.72E+00 1.1OE+01 U AL 55 290638002 11/16/2011 Fe-59 6.OOE+00 8.87E+00 3.01E+01 U AL 55 290638002 11/16/2011 1-131 1.22E+01 6.41E+00 1.79E+01 U AL 55 290638002 11/16/2011 K-40 5.15E+03 2.75E+02 1.08E+02 AL 55 290638002 11/16/2011 La-140 4.38E+00 4.99E+00 1.71E+01 U AL 55 290638002 11/16/2011 Mn-54 8.51E-01 3.38E+00 1.12E+01 U AL 55 290638002 11/16/2011 Nb-95 7.88E+00 4.08E+00 1.30E+01 U AL 55 290638002 11/16/2011 Ru-103 -2.65E+00 3.14E+00 9.52E+00 U AL 55 290638002 11/16/2011 Ru-106 1.79E+01 2.82E+01 9.54E+01 U AL 55 290638002 11/16/2011 Sb-124 -1.28E+00 7.91E+00 2.52E+01 U AL 55 290638002 11/16/2011 Sb-125 -1.56E+01 9.30E+00 2.60E+01 U AL 55. 290638002 11/16/2011 Se-75 2.68E+00 3.42E+00 1.14E+01 U AL 55 290638002 11/16/2011 Th-228 2.99E+01 8.98E+00 1.52E+01 AL 55 290638002 11/16/2011 Zn-65 -1.37E+01 9.51E+00 2.81E+01 U AL 55 290638002 11/16/2011 Zr-95 6.11E+00 6.04E+00 2.02E+01 U 138

I SAMPLE TYPE STATION Seabrook REMP Summary of 2011 Data LSN END DATE NUCLIDE CONC (pCi/m3)

STD.DEV.

(pCi/m3)

MDC (pCi/m3)

FLAGS 3 AP AP 270289001 271270001 1/11/2011 1/26/2011 BETA BETA 3.50E-02 2.30E-02 1.41E-03 1.06E-03 8.02E-04 6.63E-04 I

AP 272216001 2/9/2011 BETA 3.62E-02 1.39E-03 8.04E-04 AP AP 272943001 273849001 2/23/2011 3/9/2011 BETA BETA 3.26E-02 2.79E-02 1.33E-03 1.21E-03 8.68E-04 7.77E-04

,I AP 274665001 3/23/2011 BETA 2.13E-02 1.07E-03 7.49E-04 AP AP 274937001 277523001 277523001 3/30/2011 3/30/2011 3/30/2011 BETA Ac-228 4.27E-02 3.71E-04 1.18E-05 2.12E-03 5.40E-04 7.74E-05 1.55E-03 1.81E-03 2.56E-04 U

U I

AP Ag-108m AP AP AP 277523001 277523001 277523001 3/30/2011 3/30/2011 3/30/2011 Ag-110m Ba-140 Be-7

-1.40E-04

-1.46E-02 1.02E-01 1.34E-04 2.20E-02 8.23E-03 4.08E-04 6.54E-02 1.07E-02 U

U I 3/30/2011 1.55E-04 7.92E-04 2.59E-03 U AP 277523001 I

Ce-141 AP 277523001 3/30/2011 Ce-144 -1.43E-04 6.04E-04 1.95E-03 U AP 277523001 3/30/2011 Co-57 6.75E-05 7.78E-05 2.58E-04 U AP 277523001 3/30/2011 Co-58 -3.05E-04 2.64E-04 7.61E-04 U AP AP AP 277523001 277523001 277523001 3/30/2011 3/30/2011 3/30/2011 Co-60 Cr-51 Cs-134 1.20E-04

-1.43E-03 5.59E-05 1.12E-04 7.72E-03 1.20E-04 4.06E-04 2.56E-02 4.14E-04 U

U U

I U

AP AP AP 277523001 277523001 277523001 3/30/2011 3/30/2011 3/30/2011 Cs-137 Fe-59 1-131 1.09E-04

-1.31E-03 2.72E-01 1.20E-04 1.02E-03 2.99E-01 4.17E-04 2.73E-03 0.OOE+00 U

UI I

AP 277523001 3/30/2011 La-140 -1.46E-02 2.20E-02 6.54E-02 U AP AP 277523001 277523001 3/30/2011 3/30/2011 Mn-54 Nb-95 2.75E-04 8.82E-05 1.55E-04 2.55E-04 5.27E-04 8.69E-04 U

U U

I AP 277523001 3/30/2011 Ru-103 -6.20E-04 4.42E-04 1.19E-03 AP AP AP 277523001 277523001 277523001 3/30/2011 3/30/2011 3/30/2011 Ru-106 Sb-124 Sb-125

-4.1 OE-04

-1.60E-03

-9.75E-05 1.05E-03 9.88E-04 2.97E-04 3.44E-03 2.33E-03 9.53E-04 U

U U

I U

AP AP AP 277523001 277523001 277523001 3/30/2011 3/30/2011 3/30/2011 Se-75 Th-228 Zn-65 7.16E-05 4.89E-04 4.01E-04 1.77E-04 2.60E-04 3.86E-04 6.07E-04 5.96E-04 1.31E-03 U

U i

AP 277523001 3/30/2011 Zr-95 -4.45E-04 4.68E-04 1.40E-03 U AP AP 275574001 276545001 4/6/2011 4/20/2011 BETA BETA 5.74E-02 3.97E-02 2.52E-03 1.47E-03 1.45E-03 5.28E-04 I

AP 277483001 5/3/2011 BETA 2.11E-02 1.13E-03 7.39E-04 AP AP AP 278643001 279338001 280318001 5/18/2011 6/1/2011 6/15/2011 BETA BETA BETA 1.19E-02 1.86E-02 1.83E-02 8.02E-04 9.98E-04 9.2 1E-04 7.37E-04 7.81 E-04 6.76E-04 U

AP AP AP 281129001 284171001 284171001 6/29/2011 6/29/2011 6/29/2011 BETA Ac-228 Ag-108m 1.61E-02 4.22E-04 1.08E-04 8.59E-04 4.72E-04 9.79E-05 6.16E-04 1.69E-03 3.37E-04 U

U I

AP 284171001 6/29/2011 Ag-I 10m -4.08E-06 1.61E-04 4.69E-04 U AP AP 284171001 284171001 6/29/2011 6/29/2011 Ba-140 Be-7

-2.5 1E-02 9.20E-02 4.96E-02 1.00E-02 0.OOE+00 1.21 E-02 U

U I

AP 284171001 6/29/2011 Ce-141 1.14E-03 1.23E-03 4.22E-03 AP AP AP 284171001 284171001 284171001 6/29/2011 6/29/2011 6/29/2011 Ce-144 Co-57 Co-58 6.13E-04

-4.44E-05 3.94E-04 6.66E-04 7.74E-05 3.03E-04 2.30E-03 2.52E-04 1.11 E-03 U

U U

I U

AP AP 284171001 284171001 6/29/2011 6/29/2011 Co-60 Cr-51 2.12E-04 1.41 E-03 1.78E-04 1.26E-02 6.4 1E-04 4.14E-02 U I

139 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 01 284171001 6/29/2011 Cs-134 9.50E-04 2.67E-04 3.44E-04 AP 01 284171001 6/29/2011 Cs-137 9.44E-04 2.33E-04 3.85E-04 AP 01 284171001 6/29/2011 Fe-59 5.82E-04 1.17E-03 4.06E-03 AP 01 284171001 6/29/2011 1-131 7.47E-01 7.23E-01 0.OOE+00 AP 01 284171001 6/29/2011 La-140 -2.5 1E-02 4.96E-02 0.OOE+00 AP 01 284171001 6/29/2011 Mn-54 2.09E-04 1.61E-04 5.83E-04 AP 01 284171001 6/29/2011 Nb-95 3.37E-04 3.54E-04 1.26E-03 AP 01 284171001 6/29/2011 Ru-103 -6.41 E-04 7.78E-04 2.27E-03 AP 01 284171001 6/29/2011 Ru-106 -2.61 E-03 1.59E-03 4.16E-03 AP 01 284171001 6/29/2011 Sb-124 -6.98E-04 1.06E-03 3.03E-03 AP 01 284171001 6/29/2011 Sb-125 -1.75E-04 3.12E-04 9.49E-04 AP 01 284171001 6/29/2011 Se-75 -1.91E-04 2.75E-04 8.62E-04 AP 01 284171001 6/29/2011 Th-228 4.34E-05 1.87E-04 6.46E-04 AP 01 284171001 6/29/2011 Zn-65 -6.31 E-04 3.57E-04 6.50E-04 AP 01 284171001 6/29/2011 Zr-95 1.57E-03 7.15E-04 2.55E-03 AP 01 282335001 7/13/2011 BETA 2.99E-02 1.18E-03 7.OOE-04 AP 01 283010001 7/27/2011 BETA 3.69E-02 1.50E-03 9.17E-04 AP 01 284042001 8/10/2011 BETA 2.75E-02 1.30E-03 9.24E-04 AP 01 284899001 8/24/2011 BETA 2.64E-02 1.27E-03 8.44E-04 AP 01 285758001 9/7/2011 BETA 3.34E-02 1.39E-03 6.83E-04 AP 01 286566001 9/21/2011 BETA 2.79E-02 1.32E-03 7.37E-04 AP 01 290255001 9/21/2011 Ac-228 5.33E-04 1.24E-03 4.41 E-03 AP 01 290255001 9/21/2011 Ag-108m -2.97E-04 2.02E-04 5.29E-04 AP 01 290255001 9/21/2011 Ag-110m 4.37E-05 2.91E-04 9.86E-04 AP 01 290255001 9/21/2011 Ba-140 -1.51E-02 1.25E-01 0.OOE+00 AP 01 290255001 9/21/2011 Be-7 1.41E-01 1.90E-02 2.64E-02 AP 01 290255001 9/21/2011 Ce-141 3.67E-04 2.07E-03 6.77E-03 AP 01 290255001 9/21/2011 Ce-144 1.82E-03 1.1OE-03 3.62E-03 AP 01 290255001 9/21/2011 Co-57 9.91 E-06 1.19E-04 3.93E-04 AP 01 290255001 9/21/2011 Co-58 -1.40E-03 7.87E-04 1.77E-03 AP 01 290255001 9/21/2011 Co-60 -3.06E-04 3.17E-04 8.84E-04 AP 01 290255001 9/21/2011 Cr-51 -1.44E-02 2.35E-02 7.41E-02 AP 01 290255001 9/21/2011 Cs-134 1.13E-04 3.09E-04 1.06E-03 AP 01 290255001 9/21/2011 Cs-137 -1.02E-04 2.36E-04 7.5 1E-04 AP 01 290255001 9/21/2011 Fe-59 -1.42E-03 2.46E-03 7.53E-03 AP 01 290255001 9/21/2011 1-131 -2.13E+00 2.82E+00 0.OOE+00 AP 01 290255001 9/21/2011 La-140 -1.51E-02 1.25E-01 0.OOE+00 AP 01 290255001 9/21/2011 Mn-54 -3.13E-05 2.35E-04 7.57E-04 AP 01 290255001 9/21/2011 Nb-95 -2.67E-04 6.59E-04 2.06E-03 AP 01 290255001 9/21/2011 Ru-103 -7.94E-04 1.55E-03 4.72E-03 AP 01 290255001 9/21/2011 Ru-106 -2.55E-04 2.27E-03 7.52E-03 AP 01 290255001 9/21/2011 Sb-124 6.77E-04 1.82E-03 6.37E-03 AP 01 290255001 9/21/2011 Sb-125 -6.91E-05 5.40E-04 1.74E-03 AP 01 290255001 9/21/2011 Se-75 -9.35E-04 5.07E-04 1.34E-03 AP 01 290255001 9/21/2011 Th-228 3.58E-04 3.72E-04 1.35E-03 AP 01 290255001 9/21/2011 Zn-65 5.37E-04 8.44E-04 2.99E-03 AP 01 290255001 9/21/2011 Zr-95 2.60E-05 1.38E-03 4.57E-03 AP 01 287586001 10/5/2011 BETA 2.37E-02 1.26E-03 6.42E-04 AP 01 288558001 10/19/2011 BETA 3.30E-02 1.48E-03 5.68E-04 AP 01 289564001 11/2/2011 BETA 2.06E-02 1.18E-03 9.56E-04 AP 01 290711001 11/16/2011 BETA 4. 1OE-02 1.68E-03 9.63E-04 140

Seabrook REMP Summary of 2011 Data SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/m3)

STD.DEV.

(pCi/m3)

MDC (pCi/m3)

FLAGS I

AP 01 291292001 11/30/2011 BETA 3.57E-02 1.60E-03 6.66E-04 AP 01 292257001 12/14/2011 BETA 3.69E-02 1.63E-03 7.20E-04 AP 01 293075001 12/28/2011 BETA 3.43E-02 1.58E-03 7.27E-04 AP 01 295624001 12/28/2011 Ac-228 -4.14E-04 4.11E-04 1.22E-03 U AP 01 295624001 12/28/2011 Ag-108m 8.17E-05 7.23E-05 2.47E-04 U AP 01 295624001 12/28/2011 Ag-110m 1.97E-04 1.17E-04 4.15E-04 U AP 01 295624001 12/28/2011 Ba-140 1.18E-03 2.66E-02 8.70E-02 U AP AP AP 01 01 01 295624001 295624001 295624001 12/28/2011 12/28/2011 12/28/2011 Be-7 Ce-141 Ce-144 9.79E-02 5.71E-04

-5.38E-06 8.52E-03 6.25E-04 4.20E-04 7.26E-03 2.04E-03 1.35E-03 U

U I

AP AP AP 01 01 01 295624001 295624001 295624001 12/28/2011 12/28/2011 12/28/2011 Co-57 Co-58 Co-60

-5.29E-05 1.36E-04 2.02E-04 5.93E-05 2.45E-04 1.35E-04 1.79E-04 8.38E-04 4.98E-04 U

U U

I AP 01 295624001 12/28/2011 Cr-51 -4.98E-03 6.57E-03 2.03E-02 U AP 01 295624001 12/28/2011 Cs-134 -4.41E-06 1.14E-04 3.72E-04 U AP 01 295624001 12/28/2011 Cs-137 -1.07E-04 1.06E-04 3.2OE-04 U AP 01 295624001 12/28/2011 Fe-59 1.39E-04 8.32E-04 2.84E-03 U AP 01 295624001 12/28/2011 1-131 -8.83E-02 2.17E-01 0.OOE+00 U AP 01 295624001 12/28/2011 La-140 1.18E-03 2.66E-02 8.70E-02 U AP 01 295624001 12/28/2011 Mn-54 -1.71E-04 1.06E-04 2.37E-04 U AP 01 295624001 12/28/2011 Nb-95 2.50E-04 2.65E-04 9.25E-04 U AP 01 295624001 12/28/2011 Ru-103 2.05E-04 3.90E-04 1.30E-03 UI AP 01 295624001 12/28/2011 Ru-106 2.75E-04 8.42E-04 2.89E-03 U AP 01 295624001 12/28/2011 Sb-124 -2.87E-04 4.59E-04 1.16E-03 U AP 01 295624001 12/28/2011 Sb-125 -5.52E-04 2.93E-04 7.14E-04 U AP 01 295624001 12/28/2011 Se-75 1.24E-04 1.60E-04 5.46E-04 U AP 01 295624001 12/28/2011 Th-228 1.73E-04 2.55E-04 5.46E-04 U AP 01 295624001 12/28/2011 Zn-65 -2.42E-04 2.58E-04 7.30E-04 U AP 01 295624001 12/28/2011 Zr-95 8.69E-05 3.70E-04 1.25E-03 Ui AP 02 270289002 1/11/2011 BETA 4.13E-02 1.55E-03 6.72E-04 AP 02 271270002 1/26/2011 BETA 2.46E-02 1.11E-03 5.35E-04 AP 02 272216002 2/9/2011 BETA 3.84E-02 1.44E-03 6.01E-04 AP 02 272943002 2/23/2011 BETA 3.54E-02 1.41E-03 9.OOE-04 AP 02 273849002 3/9/2011 BETA 3.09E-02 1.29E-03 6.19E-04 AP 02 274665002 3/23/2011 BETA 2.39E-02 1.14E-03 7.02E-04 AP 02 274937002 3/30/2011 BETA 4.54E-02 2.25E-03 1.41E-03 AP 02 277523002 3/30/2011 Ac-228 -8.89E-06 4.43E-04 1.48E-03 U AP 02 277523002 3/30/2011 Ag-108m 1.51E-04 8.53E-05 2.82E-04 U AP 02 277523002 3/30/2011 Ag-110m -2.36E-04 1.31E-04 3.26E-04 U AP 02 277523002 3/30/2011 Ba-140 -3.79E-03 2.01E-02 6.39E-02 U AP 02 277523002 3/30/2011 Be-7 9.68E-02 8.16E-03 7.65E-03 AP 02 277523002 3/30/2011 Ce-141 8.72E-04 7.OOE-04 2.27E-03 U AP 02 277523002 3/30/2011 Ce-144 3.02E-04 5.17E-04 1.69E-03 U AP 02 277523002 3/30/2011 Co-57 -9.70E-06 6.54E-05 2.1OE-04 U AP 02 277523002 3/30/2011 Co-58 -4.11E-05 2.18E-04 7.22E-04 U AP 02 277523002 3/30/2011 Co-60 -1.14E-05 1.20E-04 3.90E-04 U AP 02 277523002 3/30/2011 Cr-51 -2.03E-03 7.21E-03 2.37E-02 U AP 02 277523002 3/30/2011 Cs-134 2.18E-04 1.31E-04 4.56E-04 U AP AP 02 02 277523002 277523002 3/30/2011 3/30/2011 Cs-137 Fe-59 1.82E-04

-1.34E-04 1.13E-04 8.1OE-04 3.78E-04 2.64E-03 U

U I

AP 02 277523002 3/30/2011 1-131 -5.27E-03 2.46E-01 0.OOE+00 U 141 1

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 02 277523002 3/30/2011 La-140 -3.79E-03 2.01E-02 6.39E-02 AP 02 277523002 3/30/2011 Mn-54 -3.66E-04 1.39E-04 2.54E-04 AP 02 277523002 3/30/2011 Nb-95 3.40E-04 2.61E-04 8.84E-04 AP 02 277523002 3/30/2011 Ru-103 -1.46E-04 3.65E-04 1.16E-03 AP 02 277523002 3/30/2011 Ru-106 7.36E-04 I.O1E-03 3.40E-03 AP 02 277523002 3/30/2011 Sb-124 1.92E-03 8.69E-04 3.1OE-03 AP 02 277523002 3/30/2011 Sb-125 -5.85E-05 2.39E-04 7.76E-04 AP 02 277523002 3/30/2011 Se-75 -I.23E-04 1.73E-04 5.56E-04 AP 02 277523002 3/30/2011 Th-228 6.12E-04 3.1 OE-04 5.50E-04 AP 02 277523002 3/30/2011 Zn-65 -2.22E-04 2.95E-04 8.97E-04 AP ,02 277523002 3/30/2011 Zr-95 -2.03E-04 4.48E-04 1.38E-03 AP 02 277843001 4/6/2011 Ac-228 -3.14E-03 4.80E-03 1.51E-02 AP 02 277843001 4/6/2011 Ag-108m -7.39E-04 8.39E-04 2.57E-03 AP 02 277843001 4/6/2011 Ag-i 10m 7.54E-04 1.20E-03 3.53E-03 AP 02 277843001 4/6/2011 Ba-140 1.23E-02 1.40E-02 4.97E-02 AP 02 277843001 4/6/2011 Be-7 1.07E-01 2.57E-02 4.30E-02 AP 02 277843001 4/6/2011 Ce-141 4.64E-03 2.72E-03 8.64E-03 AP 02 277843001 4/6/2011 Ce-144 -7.93E-04 4.70E-03 1.51E-02 AP 02 277843001 4/6/2011 Co-57 1.60E-03 6.98E-04 2.11E-03 AP 02 277843001 4/6/2011 Co-58 -1.67E-03 1.48E-03 4.34E-03 AP 02 277843001 4/6/2011 Co-60 -1.98E-03 1.57E-03 4.3 1E-03 AP 02 277843001 4/6/2011 Cr-51 3.75E-02 2.26E-02 7.44E-02 AP 02 277843001 4/6/2011 Cs-134 1.19E-02 2.67E-03 5.01E-03 AP 02 277843001 4/6/2011 Cs-137 1.56E-02 2.15E-03 3.5 1E-03 AP 02 277843001 4/6/2011 Fe-59 -1.49E-03 3.97E-03 1.27E-02 AP 02 277843001 4/6/2011 1-131 4.16E-02 3.98E-02 1.35E-01 AP 02 277843001 4/6/2011 La- 140 1.23E-02 1.40E-02 4.97E-02 AP 02 277843001 4/6/2011 Mn-54 -2.07E-04 1.11E-03 3.68E-03 AP 02 277843001 4/6/2011 Nb-95 -1.42E-03 1.48E-03 4.20E-03 AP 02 277843001 4/6/2011 Ru-103 -2.18E-03 1.90E-03 5.53E-03 AP 02 277843001 4/6/2011 Ru-106 -1.35E-02 1.07E-02 3.03E-02 AP 02 277843001 4/6/2011 Sb-124 -8.13E-03 5.88E-03 1.49E-02 AP 02 277843001 4/6/2011 Sb-125 5.24E-03 3.02E-03 9.91E-03 AP 02 277843001 4/6/2011 Se-75 2.24E-03 1.35E-03 4.47E-03 AP 02 277843001 4/6/2011 Th-228 2.42E-03 1.64E-03 4.94E-03 AP 02 277843001 4/6/2011 Zn-65 5.13E-04 3.46E-03 1.16E-02 AP 02 277843001 4/6/2011 Zr-95 2.08E-03 3.OOE-03 1.00E-02 AP 02 275574002 4/6/2011 BETA 1.08E-01 3.52E-03 1.67E-03 AP 02 276545002 4/20/2011 BETA 4.60E-02 1.64E-03 8.93E-04 AP 02 277483002 5/3/2011 BETA 2.10E-02 1.16E-03 8.74E-04 AP 02 278643002 5/18/2011 BETA 1.22E-02 8.11E-04 6.68E-04 AP 02 279338002 6/1/2011 BETA 2.04E-02 9.98E-04 7.2 1E-04 AP 02 280318002 6/15/2011 BETA 2.02E-02 9.70E-04 5.90E-04 AP 02 281129002 6/29/2011 BETA i.53E-02 8.49E-04 5.88E-04 AP 02 284171002 6/29/2011 Ac-228 -2.61E-04 7.12E-04 2.42E-03 AP 02 284171002 6/29/2011 Ag-108m -3.74E-05 1.1 8E-04 3.73E-04 AP 02 284171002 6/29/2011 Ag-I 1Om 3.05E-04 2.17E-04 6.5 1E-04 AP 02 284171002 6/29/2011 Ba-140 -1.11E-02 5.69E-02 0.OOE+00 AP 02 284171002 6/29/2011 Be-7 1.0LE-01 1.1OE-02 1.42E-02 AP 02 284171002 6/29/2011 Ce-141 1.37E-03 1.63E-03 5.43E-03 AP 02 284171002 6/29/2011 Ce-144 1.04E-03 9.27E-04 3.14E-03 142

Seabrook REMP Summary of 2011 Data 3 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 02 284171002 6/29/2011 Co-57 -4.90E-05 1.15E-04 3.55E-04 U m AP 02 284171002 6/29/2011 Co-58 4.99E-06 4.37E-04 1.45E-03 U AP 02 284171002 6/29/2011 Co-60 -3.62E-04 2.26E-04 6.78E-04 U AP 02 284171002 6/29/2011 Cr-51 -1.33E-02 1.53E-02 4.78E-02 U AP 02 284171002 6/29/2011 Cs-134 1.38E-03 4.37E-04 1.02E-03 UI AP AP AP 02 02 02 284171002 284171002 284171002 6/29/2011 6/29/2011 6/29/2011 Cs-137 Fe-59 1-131 1.22E-03

-3.10E-04

-2.29E-01 2.53E-04 1.43E-03 1.09E+00 4.99E-04 4.67E-03 0.OOE+00 M

U U

3 AP 02 284171002 6/29/2011 La-140 -1.11E-02 5.69E-02 0.OOE+00 U AP 02 284171002 6/29/2011 Mn-54 -4.73E-05 2.11E-04 6.87E-04 U AP 02 284171002 6/29/2011 Nb-95 5.23E-05 4.10E-04 1.38E-03 U AP 02 284171002 6/29/2011 Ru-103 5.35E-04 8.15E-04 2.78E-03 U AP 02 284171002 6/29/2011 Ru-106 -1.24E-03 1.79E-03 5.57E-03 U AP 02 284171002 6/29/201'1 Sb-124 1.23E-03 1.14E-03 4.07E-03 U AP 02 284171002 6/29/2011 Sb-125 -4.77E-04 4.27E-04 1.25E-03 U AP AP AP 02 02 02 284171002 284171002 284171002 6/29/2011 6/29/2011 6/29/2011 Se-75 Th-228 Zn-65

-5.47E-04 1.07E-04 6.77E-04 3.40E-04 2.75E-04 4.86E-04 9.22E-04 8.87E-04 1.69E-03 U

U U

3 AP 02 284171002 6/29/2011 Zr-95 -7.74E-04 7.85E-04 2.37E-03 U AP 02 282335002 7/13/2011 BETA 2.88E-02 1.17E-03 6.01E-04 AP 02 283010002 7/27/2011 BETA 3.59E-02 1.51E-03 9.54E-04 AP 02 284042002 8/10/2011 BETA 2.53E-02 1.28E-03 9.63E-04 AP 02 284899002 8/24/2011 BETA 3.54E-02 1.50E-03 8.84E-04 AP 02 285758002 9/7/2011 BETA 2.91E-02 1.33E-03 7.16E-04I AP 02 286566002 9/21/2011 BETA 2.88E-02 1.35E-03 7.41E-04 AP AP AP 02 02 02 290255002 290255002 290255002 9/21/2011 9/21/2011 9/21/2011 Ac-228 Ag-108m Ag-ll0m

-8.44E-04

-1.83E-04 1.90E-04 1.17E-03 2.07E-04 3.1OE-04 3.81E-03 6.43E-04 1.04E-03 U

U U

3 AP 02 290255002 9/21/2011 Ba-140 7.46E-02 1.16E-01 0.OOE+00 UI AP 02 290255002 9/21/2011 Be-7 1.42E-01 1.67E-02 2.65E-02 AP 02 290255002 9/21/2011 Ce-141 3.47E-03 2.42E-03 8.09E-03 U AP 02 290255002 9/21/2011 Ce-144 1.38E-03 1.19E-03 4.02E-03 U AP 02 290255002 9/21/2011 Co-57 i.19E-04 1.40E-04 4.53E-04 U AP 02 290255002 9/21/2011 Co-58 -1.99E-04 7.44E-04 2.43E-03 U AP 02 290255002 9/21/2011 Co-60 3.32E-04 3.29E-04 1.16E-03 U AP AP AP 02 02 02 290255002 290255002 290255002 9/21/2011 9/21/2011 9/21/2011 Cr-51 Cs-134 Cs-137

-6.72E-02 8.43E-05

-3.26E-04 3.05E-02 3.29E-04 2.97E-04 7.20E-02 1.12E-03 8.56E-04 U

U U

3 AP 02 290255002 9/21/2011 Fe-59 3.92E-03 2.69E-03 9.40E-03 U AP 02 290255002 9/21/2011 1-131 -6.96E-01 3.08E+00 0.OOE+00 U AP 02 290255002 9/21/2011 La-140 7.46E-02 1.16E-01 0.OOE+00 UI AP 02 290255002 9/21/2011 Mn-54 5.80E-04 3.72E-04 1.27E-03 U AP 02 290255002 9/21/2011 Nb-95 -3.39E-04 6.55E-04 2.08E-03 U AP AP 02 02 290255002 290255002 9/21/2011 9/21/2011 Ru-103 Ru-106 1.55E-03 1.44E-03 1.43E-03 2.67E-03 4.88E-03 8.93E-03 U

U I

AP 02 290255002 9/21/2011 Sb-124 3.02E-04 2.11E-03 6.96E-03 U AP 02 290255002 9/21/2011 Sb-125 -7.17E-04 6.73E-04 2.05E-03 U AP 02 290255002 9/21/2011 Se-75 -4.01E-04 4.67E-04 1.43E-03 U AP 02 290255002 9/21/2011 Th-228 -1.04E-04 3.76E-04 1.24E-03 U AP AP 02 02 290255002 290255002 9/21/2011 9/21/2011 Zn-65 Zr-95 8.88E-05 6.20E-04 7.40E-04 1.37E-03 2.43E-03 4.71E-03 U

U I

143

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 02 287586002 10/5/2011 BETA 2.68E-02 1.36E-03 6.57E-04 AP 02 288558002 10/19/2011 BETA 3.77E-02 1.64E-03 6.04E-04 AP 02 289564002 11/2/2011 BETA 1.97E-02 1.21E-03 1.05E-03 AP 02 290711002 11/16/2011 BETA 3.87E-02 1.70E-03 1.05E-03 AP 02 291292002 11/30/2011 BETA 3.89E-02 1.76E-03 7.38E-04 AP 02 292257002 12/14/2011 BETA 3.19E-02 1.59E-03 8.OOE-04 AP 02 293075002 12/28/2011 BETA 3.43E-02 1.66E-03 8.09E-04 AP 02 295624002 12/28/2011 Ac-228 3.50E-04 4.65E-04 1.64E-03 U AP 02 295624002 12/28/2011 Ag-108m 2.94E-05 8.52E-05 2.88E-04 U AP 02 295624002 12/28/2011 Ag-ilOm 4.91E-05 1.24E-04 4.20E-04 U AP 02 295624002 12/28/2011 Ba-140 -1.21E-02 2.18E-02 6.91E-02 U AP 02 295624002 12/28/2011 Be-7 1.17E-01 8.77E-03 7.02E-03 AP 02 295624002 12/28/2011 Ce-141 3.16E-04 8.18E-04 2.77E-03 U AP 02 295624002 12/28/2011 Ce-144 -4.45E-04 5.94E-04 1.95E-03 U AP 02 295624002 12/28/2011 Co-57 3.12E-05 8.07E-05 2.59E-04 U AP 02 295624002 12/28/2011 Co-58 -3.77E-04 2.90E-04 8.45E-04 U AP 02 295624002 12/28/2011 Co-60 -1.04E-05 1.15E-04 3.76E-04 U AP 02 295624002 12/28/2011 Cr-51 -1.13E-02 8.1 OE-03 2.42E-02 U AP 02 295624002 12/28/2011 Cs-134 -1.25E-04 1.50E-04 4.61E-04 U AP 02 295624002 12/28/2011 Cs-137 -1.03E-05 1.03E-04 3.44E-04 U AP 02 295624002 12/28/2011 Fe-59 1.38E-04 7.71 E-04 2.55E-03 U AP 02 295624002 12/28/2011 1-131 2.20E-01 2.70E-01 0.OOE+00 U' AP 02 295624002 12/28/2011 La-140 -1.21E-02 2.18E-02 6.91E-02 U AP 02 295624002 12/28/2011 Mn-54 -7.51E-05 1.25E-04 3.92E-04 U AP 02 295624002 12/28/2011 Nb-95 -1.50E-04 2.62E-04 8.29E-04 U AP 02 295624002 12/28/2011 Ru-103 -1.09E-04 4.34E-04 1.42E-03 U AP 02 295624002 12/28/2011 Ru-106 3.11E-04 i .20E-03 3.92E-03 U AP 02 295624002 12/28/2011 Sb-124 3.33E-04 7.55E-04 2.56E-03 U AP 02 295624002 12/28/2011 Sb-125 9.82E-06 2.66E-04 8.97E-04 U AP 02 295624002 12/28/2011 Se-75 -3.93E-05 1.90E-04 6.34E-04 U AP 02 295624002 12/28/2011 Th-228 6.14E-06 1.92E-04 6.23E-04 U AP 02 295624002 12/28/2011 Zn-65 1.O1E-04 3.14E-04 1.04E-03 U AP 02 295624002 12/28/2011 Zr-95 -3.82E-04 4.93E-04 1.54E-03 U AP 03 270289003 1/11/2011 BETA 3.53E-02 1.44E-03 8.38E-04 AP 03 271270003 1/26/2011 BETA 2.5 1E-02 1.08E-03 5.26E-04 AP 03 272216003 2/9/2011 BETA 4.07E-02 1.45E-03 8.06E-04 AP 03 272943003 2/23/2011 BETA 3.32E-02 1.34E-03 7.29E-04 AP 03 273849003 3/9/2011 BETA 3.04E-02 1.25E-03 7.87E-04 AP 03 274665003 3/23/2011 BETA 2.32E-02 1.11 E-03 7.78E-04 AP 03 274937003 3/30/2011 BETA 4.90E-02 2.26E-03 1.06E-03 AP 03 277523003 3/30/2011 Ac-228 1.41E-03 7.07E-04 1.97E-03 U AP 03 277523003 3/30/2011 Ag-108m -1.05E-05 8.83E-05 2.90E-04 U AP 03 277523003 3/30/2011 Ag-110m -4.21E-04 1.83E-04 3.89E-04 U AP 03 277523003 3/30/2011 Ba-140 -1.63E-02 2.1OE-02 6.06E-02 U AP 03 277523003 3/30/2011 Be-7 1.06E-01 8.3 1E-03 8. 1OE-03 AP 03 277523003 3/30/2011 Ce-141 -1.16E-04 8.17E-04 2.66E-03 U AP 03 277523003 3/30/2011 Ce-144 2.77E-04 5.84E-04 1.94E-03 U AP 03 277523003 3/30/2011 Co-57 -8.88E-05 7.84E-05 2.37E-04 U AP 03 277523003 3/30/2011 Co-58 -1.12E-04 2.43E-04 7.76E-04 U AP 03 277523003 3/30/2011 Co-60 1.54E-04 1.19E-04 4.4 1E-04 U AP 03 277523003 3/30/2011 Cr-51 -6.01E-03 7.57E-03 2.40E-02 U 144

U Seabrook REMP Summary of 2011 Data I SAMPLE END CONC STD.DEV. MDC FLAGS TYPE AP STATION LSN 277523003 DATE 3/30/2011 NUCLIDE Cs-134 (pCi/m3) 2.OOE-04 (pCi/m3) 1.49E-04 (pCi/m3) 5.23E-04 U 3

AP 277523003 3/30/2011 Cs-137 1.12E-04 1.54E-04 4.96E-04 U AP 277523003 3/30/2011 Fe-59 3.93E-04 9.29E-04 3.15E-03 U i AP 277523003 3/30/2011 1-131 -3.44E-01 3.05E-01 0.OOE+00 U AP 277523003 3/30/2011 La-140 -1.63E-02 2.10E-02 6.06E-02 U AP AP 277523003 277523003 3/30/2011 3/30/2011 Mn-54 Nb-95

-8.21E-05 2.04E-04 1.33E-04 3.17E-04 4.17E-04 1.1OE-03 U

U U

AP 277523003 3/30/2011 Ru-103 -6.55E-06 4.82E-04 1.58E-03 U AP AP AP 277523003 277523003 277523003 3/30/2011 3/30/2011 3/30/2011 Ru-106 Sb-124 Sb-125 1.72E-03 3.02E-04

-2.15E-04 1.30E-03 8.04E-04 2.92E-04 4.36E-03 2.78E-03 9.07E-04 U

U U

I AP AP AP 277523003 277523003 277523003 3/30/2011 3/30/2011 3/30/2011 Se-75 Th-228 Zn-65 3.37E-04 5.02E-04

-6.80E-05 2.07E-04 2.52E-04 3.59E-04 7.OOE-04 5.22E-04 9.80E-04 U

U U

I AP 277523003 3/30/2011 Zr-95 -2.86E-04 4.84E-04 1.53E-03 U AP AP 275574003 276545003 4/6/2011 4/20/2011 BETA BETA 7.80E-02 4.46E-02 2.96E-03 1.55E-03 1.32E-03 6.85E-04 I

AP 277483003 5/3/2011 BETA 2.01E-02 1.09E-03 7.70E-04 AP AP AP 278643003 279338003 280318003 5/18/2011 6/1/2011 6/15/2011 BETA BETA BETA 1.24E-02 2.2 1E-02 2.02E-02 7.48E-04 9.53E-04 9.65E-04 6.1OE-04 6.54E-04 7.08E-04 I

AP AP AP 281129003 284171003 284171003 6/29/2011 6/29/2011 6/29/2011 BETA Ac-228 Ag-108m 1.63E-02 1.77E-03 2.22E-04 8.75E-04 1.06E-03 1.87E-04 6.84E-04 3.22E-03 6.37E-04 U

U I

AP 284171003 6/29/2011 Ag-110m 2.23E-05 3.13E-04 8.80E-04 U AP AP 284171003 284171003 6/29/2011 6/29/2011 Ba-140 Be-7

-4.52E-02 1.15E-01 6.88E-02 1.22E-02 0.OOE+00 2.01E-02 U

I AP 284171003 6/29/2011 Ce-141 2.05E-03 1.85E-03 6.26E-03 U AP AP AP 284171003 284171003 284171003 6/29/2011 6/29/2011 6/29/2011 Ce-144 Co-57 Co-58 1.93E-03

-8.17E-05 8.95E-04 1.09E-03 1.26E-04 5.89E-04 3.54E-03 3.83E-04 2.05E-03 U

U U

U AP AP AP 284171003 284171003 284171003 6/29/2011 6/29/2011 6/29/2011 Co-60 Cr-51 Cs-134

-6.88E-05

-1.32E-02 9.09E-04 3.13E-04 2.04E-02 4.42E-04 1.02E-03 6.30E-02 1.45E-03 U

U U

I AP 284171003 6/29/2011 Cs-137 1.61E-03 3.47E-04 8.33E-04 UI AP AP 284171003 284171003 6/29/2011 6/29/2011 Fe-59 1-131

-2.OOE-03 9.53E-01 2.48E-03 1.14E+00 7.35E-03 0.OOE+00 U

UI i

AP 284171003 6/29/2011 La-140 -4.52E-02 6.88E-02 0.OOE+00 U AP AP AP 284171003 284171003 284171003 6/29/2011 6/29/2011 6/29/2011 Mn-54 Nb-95 Ru-103 5.12E-04

-4.02E-04 1.71E-03 3.3 1E-04 6.94E-04 1.28E-03 1.13E-03 2.18E-03 4.30E-03 U

U U

I AP AP AP 284171003 284171003 284171003 6/29/2011 6/29/2011 6/29/2011 Ru-106 Sb-124 Sb-125 2.8 1E-03

-3.15E-03

-1.07E-03 2.86E-03 1.94E-03 6.38E-04 9.56E-03 4.29E-03 1.77E-03 U

U U

I AP 284171003 6/29/2011 Se-75 6.16E-04 4.16E-04 1.36E-03 U AP 284171003 6/29/2011 Th-228 2.05E-04 3.3 1E-04 1.13E-03 U AP AP 284171003 284171003 6/29/2011 6/29/2011 Zn-65 Zr-95

-1. 19E-03

-2.69E-04 7.77E-04 1.23E-03 2.OOE-03 4.06E-03 U U

I AP AP AP 282335003 283010003 284042003 7/13/2011 7/27/2011 8/10/2011 BETA BETA BETA 3.04E-02 1.73E-02 2.70E-02 1.21 E-03 1.04E-03 1.31E-03 6.85E-04 9.29E-04 9.5 1E-04 I

I 145

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 03 284899003 8/24/2011 BETA 2.13E-02 1.15E-03 8.59E-04 AP 03 285758003 9/7/2011 BETA 3.02E-02 1.34E-03 6.98E-04 AP 03 286566003 9/21/2011 BETA 1.48E-02 9.8 1E-04 7.42E-04 AP 03 290255003 9/21/2011 Ac-228 1.53E-04 6.05E-04 2. 17E-03 U AP 03 290255003 9/21/2011 Ag-108m 4.82E-05 1.09E-04 3.63E-04 U AP 03 290255003 9/21/2011 Ag-110m -7.25E-05 1.87E-04 5.92E-04 U AP 03 290255003 9/21/2011 Ba-140 4.02E-02 3.43E-02 0.OOE+00 UI AP 03 290255003 9/21/2011 Be-7 1.O1E-01 1.32E-02 1.52E-02 AP 03 290255003 9/21/2011 Ce-141 2.09E-03 1.56E-03 4.90E-03 U AP 03 290255003 9/21/2011 Ce-144 2.02E-04 6.52E-04 2.24E-03 U AP 03 290255003 9/21/2011 Co-57 -2.45E-05 9.54E-05 3.1 9E-04 U AP 03 290255003 9/21/2011 Co-58 2.16E-04 3.39E-04 1.19E-03 U AP 03 290255003 9/21/2011 Co-60 -1.02E-04 1.72E-04 5.06E-04 U AP 03 290255003 9/21/2011 Cr-51 -4.44E-03 1.39E-02 4.38E-02 U AP 03 290255003 9/21/2011 Cs-134 -6.44E-06 2.22E-04 7.20E-04 U AP 03 290255003 9/21/2011 Cs-137 -3.29E-05 1.57E-04 5.06E-04 U AP 03 290255003 9/21/2011 Fe-59 5.17E-04 1.25E-03 4.4 1E-03 U AP 03 290255003 9/21/2011 1-131 - 1.18E+00 1.95E+00 0.OOE+00 U AP 03 290255003 9/21/2011 La-140 4.02E-02 3.42E-02 0.OOE+00 UI AP 03 290255003 9/21/2011 Mn-54 -1.53E-04 2.06E-04 6.04E-04 U AP 03 290255003 9/21/2011 Nb-95 9.94E-04 5.13E-04 1.84E-03 U AP 03 290255003 9/21/2011 Ru-103 -3.17E-04 7.18E-04 2.29E-03 U AP 03 290255003 9/21/2011 Ru-106 9.36E-04 1.31E-03 4.63E-03 U AP 03 290255003 9/21/2011 Sb-124 -3.86E-05 7.14E-04 2.26E-03 U AP 03 290255003 9/21/2011 Sb-125 -1.64E-05 3.36E-04 1.07E-03 U AP 03 290255003 9/21/2011 Se-75 -1.82E-04 2.99E-04 9.34E-04 U AP 03 290255003 9/21/2011 Th-228 2.69E-04 2.33E-04 8.28E-04 U AP 03 290255003 9/21/2011 Zn-65 2.76E-04 4.89E-04 1.71E-03 U AP 03 290255003 9/21/2011 Zr-95 3.03E-04 6.76E-04 2.33E-03 U AP 03 287586003 10/5/2011 BETA 2.47E-02 1.29E-03 6.38E-04 AP 03 288558003 10/19/2011 BETA 4.09E-02 1.69E-03 5.88E-04 AP 03 289564003 11/2/2011 BETA 1.77E-02 1.13E-03 1.O1E-03 AP 03 290711003 11/16/2011 BETA 4.07E-02 1.71E-03 1.OIE-03 AP 03 291292003 11/30/2011 BETA 4.16E-02 1.79E-03 7.09E-04 AP 03 292257003 12/14/2011 BETA 3.41E-02 1.60E-03 7.60E-04 AP 03 293075003 12/28/2011 BETA 3.57E-02 1.66E-03 7.73E-04 AP 03 295624003 12/28/2011 Ac-228 -3.14E-05 3.92E-04 1.27E-03 U AP 03 295624003 12/28/2011 Ag-108m -4.13E-05 7.41E-05 2.33E-04 U AP 03 295624003 12/28/2011 Ag-il0m 4.79E-05 9.95E-05 3.43EL04 U AP 03 295624003 12/28/2011 Ba-140 -3.26E-02 1.89E-02 4.41E-02 U AP 03 295624003 12/28/2011 Be-7 1.1OE-01 8.47E-03 7.1OE-03 AP 03 295624003 12/28/2011 Ce-141 -3.OOE-04 6.85E-04 2.02E-03 U AP 03 295624003 12/28/2011 Ce-144 -1.27E-04 4.55E-04 1.44E-03 U AP 03 295624003 12/28/2011 Co-57 1.43E-05 5.53E-05 1.80E-04 U AP 03 295624003 12/28/2011 Co-58 -6.93E-05 1.63E-04 5.19E-04 U AP 03 295624003 12/28/2011 Co-60 -2.41E-05 9.90E-05 3.24E-04 U AP 03 295624003 12/28/2011 Cr-51 -3.92E-03 5.54E-03 1.75E-02 U AP 03 295624003 12/28/2011 Cs-134 1.18E-04 1.17E-04 4.07E-04 U AP 03 295624003 12/28/2011 Cs-137 4.95E-06 7.83E-05 2.65E-04 U AP 03 295624003 12/28/2011 Fe-59 -1.17E-03 7.52E-04 1.86E-03 U AP 03 295624003 12/28/2011 1-131 -2.42E-01 2.36E-01 0.OOE+00 U 146

I SAMPLE TYPE STATION Seabrook REMP Summary of 2011 Data LSN END DATE NUCLIDE CONC (pCi/m3)

STD.DEV.

(pCi/m3)

MDC (pCi/m3)

FLAGS 1 AP AP 03 03 295624003 295624003 12/28/2011 12/28/2011 La-140 Mn-54

-3.26E-02

-1.46E-04 1.89E-02 9.55E-05 4.41E-02 2.50E-04 U

U I

AP 03 295624003 12/28/2011 Nb-95 9.59E-05 2.03E-04 6.98E-04 U AP AP 03 03 295624003 295624003 12/28/2011 12/28/2011 Ru-i103 Ru-106

-4.98E-04 1.72E-04 3.76E-04 9.53E-04 1.04E-03 3.08E-03 U

U I

AP 03 295624003 12/28/2011 Sb- 124 5.39E-04 4.30E-04 1.65E-03 U AP AP AP 03 03 03 295624003 295624003 295624003 12/28/2011 12/28/2011 12/28/2011 Sb-125 Se-75 Th-228

-4.20E-04 6.24E-06 1.90E-04 2.40E-04 1.45E-04 1.49E-04 6.30E-04 4.87E-04 4.49E-04 U

U U

I AP AP AP 03 03 04 295624003 295624003 270289004 12/28/2011 12/28/2011 1/11/2011 Zn-65 Zr-95 BETA

-5.56E-04 2.87E-04 3.95E-02 2.67E-04 3.97E-04 1.52E-03 5.27E-04 1.37E-03 6.74E-04 U

U I AP 04 271270004 1/26/2011 BETA 2.44E-02 1.12E-03 6.22E-04 AP AP 04 04 272216004 272943004 2/9/2011 2/23/2011 BETA BETA 3.83E-02 3.20E-02 1.4,7E-03 1.33E-03 7.41E-04 8.15E-04 I

AP 04 273849004 3/9/2011 BETA 3.12E-02 1.33E-03 6.99E-04 AP AP AP 04 04 04 274665004 274937004 277523004 3/23/2011 3/30/2011 3/30/2011 BETA BETA Ac-228 2.37E-02 4.53E-02 6.09E-05 1.15E-03 2.25E-03 4.06E-04 7.04E-04 9.63E-04 1.35E-03 U 1

6.45E-05 2.07E-04 U AP AP AP 04 04 04 277523004 277523004 277523004 3/30/2011 3/30/2011 3/30/2011 Ag-108m Ag-110m Ba-140

-6.14E-06

-6.02E-05 1.93E-03 1.11E-04 2.01E-02 3.55E-04 6.76E-02 U

U I

AP 04 277523004 3/30/2011 Be-7 1.09E-01 8.35E-03 6.73E-03 AP AP 04 04 277523004 277523004 3/30/2011 3/30/2011 Ce-141 Ce-144

-9.09E-04

-2.43E-04 6.85E-04 4.25E-04 2.08E-03 1.39E-03 U

U I AP 04 277523004 3/30/2011 Co-57 2.72E-05 5.60E-05 1.92E-04 U AP AP AP 04 04 04 277523004 277523004 277523004 3/30/2011 3/30/2011 3/30/2011 Co-58 Co-60 Cr-51 1.60E-04

-8.47E-05

-6.46E-03 2.03E-04 1.17E-04 6.12E-03 7.05E-04 3.39E-04 1.82E-02 U

U U

I

-2.09E-04 1.21E-04 3.01E-04 U AP AP AP 04 04 04 277523004 277523004 277523004 3/30/2011 3/30/2011 3/30/2011 Cs-134 Cs-137 Fe-59 8.31E-05

-7.87E-05 9.80E-05 6.72E-04 3.40E-04 2.16E-03 U

U I

AP 04 277523004 3/30/2011 1-131 7.78E-02 2.39E-01 0.OOE+00 UI AP AP 04 04 277523004 277523004 3/30/2011 3/30/2011 La- 140 Mn-54 1.93E-03

-1.25E-04

-1.48E-04 2.01E-02 1.17E-04 2.50E-04 6.76E-02 3.41E-04 7.86E-04 U

U U

I AP 04 277523004 3/30/2011 Nb-95 AP AP AP 04 04 04 277523004 277523004 277523004 3/30/2011 3/30/2011 3/30/2011 Ru-103 Ru-106 Sb-124 7.22E-05

-3.77E-04 1.07E-03 4.13E-04 9.29E-04 7.39E-04 1.34E-03 3.03E-03 2.70E-03 U

U U

I 277523004 3/30/2011 1.58E-04 2.13E-04 7.13E-04 U AP 04 I

Sb-125 AP 04 277523004 3/30/2011 Se-75 3.59E-04 1.91E-04 6.16E-04 U AP 04 277523004 3/30/2011 Th-228 6.8 1E-04 2.68E-04 5.42E-04 UI AP 04 277523004 3/30/2011 Zn-65 -1.73E-04 2.85E-04 8.65E-04 U AP AP 04 04 277523004 275574004 3/30/2011 4/6/2011 Zr-95 BETA 8.58E-05 7.9 1E-02 4.17E-04 3.04E-03 1.41E-03 1.22E-03 U

I AP 04 276545004 4/20/2011 BETA 4.39E-02 1.59E-03 8.66E-04 AP AP AP 04 04 04 277483004 278643004 279338004 5/3/2011 5/18/2011 6/1/2011 BETA BETA BETA 2.12E-02 1.36E-02 2.29E-02 1.16E-03 8.79E-04 1.12E-03 9.08E-04 7.07E-04 5.37E-04 I

1.73E-02 9.04E-04 6.88E-04 AP AP 04 04 280318004 281129004 6/15/2011 6/29/2011 BETA BETA 1.83E-02 9.44E-04 6.61E-04 I 147 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 04 284171004 6/29/2011 Ac-228 -2.95E-03 7.43E-03 2.5 1E-02 U 284171004 6/29/2011 -2.82E-03 1.72E-03 4.58E-03 U AP 04 Ag-108m AP 04 284171004 6/29/2011 Ag-i 10m 3.14E-03 2.61E-03 8.19E-03 U 04 284171004 6/29/2011 Ba-140 1.35E+00 6.94E-01 0.OOE+00 UI AP AP 04 284171004 6/29/2011 Be-7 1.16E+00 1.48E-01 2.OOE-01 04 284171004 6/29/2011 Ce-141 2.22E-02 1.99E-02 6.62E-02 U AP 04 284171004 6/29/2011 Ce-144 1.14E-02 1.00E-02 3.37E-02 U AP AP '04 284171004 6/29/2011 Co-57 8.29E-04 1.31E-03 4.41E-03 U 04 284171004 6/29/2011 Co-58 -5.85E-03 4.59E-03 1.24E-02 U AP 04 284171004 6/29/2011 Co-60 1.73E-03 2.33E-03 8.24E-03 U AP AP 04 284171004 6/29/2011 Cr-51 -1.24E-01 1.75E-01 5.55E-01 U AP 04 284171004 6/29/2011 Cs-134 5.14E-03 2.92E-03 1.03E-02 U AP 04 284171004 6/29/2011 Cs-137 1.43E-02 2.71 E-03 7.42E-03 M AP 04 284171004 6/29/2011 Fe-59 -2.65E-03 1.75E-02 5.64E-02 U AP 04 284171004 6/29/2011 1-131 8.54E+00 1.30E+01 0.OOE+00 UI 04 284171004 6/29/2011 La-140 1.35E+00 6.9 1E-01 0.OOE+00 UI AP AP 04 284171004 6/29/2011 Mn-54 -2.08E-03 1.89E-03 5.22E-03 U 04 284171004 6/29/2011 Nb-95 -5.06E-03 6.05E-03 1.74E-02 U AP 04 284171004 6/29/2011 Ru-103 -5.36E-04 8.84E-03 2.90E-02 U AP AP 04 284171004 6/29/2011 Ru-106 -8.24E-04 1.91E-02 6.18E-02 U 04 284171004 6/29/2011 Sb-124 -2.87E-02 1.84E-02 4.12E-02 U AP 04 284171004 6/29/2011 Sb-125 -3.48E-03 4.98E-03 1.55E-02 U AP 04 284171004 6/29/2011 Se-75 i.86E-03 3.66E-03 1.20E-02 U AP AP 04 284171004 6/29/2011 Th-228 3.07E-04 5.17E-03 1.21E-02 U AP 04 284171004 6/29/2011 Zn-65 7.69E-04 6.06E-03 2.02E-02 U AP 04 284171004 6/29/2011 Zr-95 -1.73E-02 1.08E-02 2.57E-02 U AP 04 282335004 7/13/2011 BETA 3. 12E-02 1.23E-03 8.94E-04 AP 04 283010004 7/27/2011 BETA 3.44E-02 1.44E-03 9.11E-04 AP 04 284042004 8/10/2011 BETA 2.5 1E-02 1.25E-03 9.32E-04 AP 04 284899004 8/24/2011 BETA 3.19E-02 1.39E-03 8.46E-04 AP 04 285758004 9/7/2011 BETA 3.68E-02 1.5 1E-03 7.29E-04 AP 04 286566004 9/21/2011 BETA 2.98E-02 1.39E-03 7.59E-04 AP 04 290255004 9/21/2011 Ac-228 1.64E-03 7. 1OE-04 2.45E-03 U AP 04 290255004 9/21/2011 Ag-108m 8.91E-05 1.49E-04 5.06E-04 U 04 290255004 9/21/2011 Ag-110m -3.25E-04 1.97E-04 4.84E-04 U AP AP 04 290255004 9/21/2011 Ba-140 3.47E-03 8.8 1E-02 0.OOE+00 UI AP 04 290255004 9/21/2011 Be-7 1.39E-01 1.29E-02 1.52E-02 04 290255004 9/21/2011 Ce-141 -1.67E-03 1.93E-03 5.95E-03 U AP AP 04 290255004 9/21/2011 Ce-144 1.73E-04 7.98E-04 2.62E-03 U AP 04 290255004 9/21/2011 Co-57 1.40E-04 1.17E-04 3.87E-04 U 04 290255004 9/21/2011 Co-58 -8.58E-04 5.14E-04 1.25E-03 U AP AP 04 290255004 9/21/2011 Co-60 -1.32E-04 2. 1OE-04 6.39E-04 U AP 04 290255004 9/21/2011 Cr-51 3.13E-03 1.73E-02 5.83E-02 U AP 04 290255004 9/21/2011 Cs-134 -1.81E-04 2.16E-04 6.32E-04 U 04 290255004 9/21/2011 -3.77E-05 1.21E-04 3.82E-04 U AP Cs-137 AP 04 290255004 9/21/2011 Fe-59 -5.46E-04 1.27E-03 3.78E-03 U AP 04 290255004 9/21/2011 1-131 -1.10E-01 1.82E+00 0.OOE+00 U AP 04 290255004 9/21/2011 La-140 3.47E-03 8.8 1E-02 0.OOE+00 UI AP 04 290255004 9/21/2011 Mn-54 2.73E-04 2.13E-04 7.46E-04 U AP 04 290255004 9/21/2011 Nb-95 7.08E-04 4.90E-04 1.75E-03 U AP 04 290255004 9/21/2011 Ru-103 -1.36E-03 7.78E-04 1.85E-03 U 148

Seabrook REMP Summary of 2011 Data U

SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 04 290255004 9/21/2011 Ru-106 7.85E-04 1.48E-03 5.08E-03 U AP 04 290255004 9/21/2011 Sb-124 .9.33E-04 1.30E-03 4.76E-03 U AP 04 290255004 9/21/2011 Sb-125 -1.45E-04 4.65E-04 1.51E-03 U AP 04 290255004 9/21/2011 Se-75 -1.17E-04 3.41E-04 1.12E-03 U AP 04 290255004 9/21/2011 Th-228 6.50E-04 2.94E-04 9.24E-04 U AP 04 290255004 9/21/2011 Zn-65 2.68E-04 5.32E-04 1.81E-03 U AP 04 290255004 9/21/2011 Zr-95 9.65E-05 6.41E-04 2.14E-03 U AP AP AP 04 04 04 287586004 288558004 289564004 10/5/2011 10/19/2011 11/2/2011 BETA BETA BETA 2.99E-02 3.87E-02 1.86E-02 1.56E-03 1.64E-03 1.28E-03 7.76E-04 5.84E-04 1.22E-03 I

AP 04 290711004 11/16/2011 BETA 4.12E-02 1.72E-03 1.00E-03 AP 04 291292004 11/30/2011 BETA 3.55E-02 1.64E-03 7.02E-04 AP 04 292257004 12/14/2011 BETA 3.63E-02 1.65E-03 7.58E-04 AP 04 293075004 12/28/2011 BETA 3.41E-02 1.61E-03 7.63E-04 AP 04 295624004 12/28/2011 Ac-228 -4.70E-04 4.69E-04 1.47E-03 U AP 04 295624004 12/28/2011 Ag-108m -1.12E-05 7.57E-05 2.49E-04 U AP 04 295624004 12/28/2011 Ag-110m 6.73E-05 1.25E-04 4.18E-04 U AP 04 295624004 12/28/2011 Ba-140 -1.07E-02 2.1IE-02 6.58E-02 U AP 04 295624004 12/28/2011 Be-7 1.24E-01 8.93E-03 7.03E-03 AP 04 295624004 12/28/2011 Ce-141 -1.17E-03 8.34E-04 2.44E-03 U AP 04 295624004 12/28/2011 Ce-144 -7.15E-04 5.78E-04 1.72E-03 U AP 04 295624004 12/28/2011 Co-57 -8.29E-06 6.68E-05 2.19E-04 U AP 04 295624004 12/28/2011 Co-58 -4.28E-04 2.64E-04 7.03E-04 U AP AP AP 04 04 04 295624004 295624004 295624004 12/28/2011 12/28/2011 12/28/2011 Co-60 Cr-51 Cs-134 5.34E-05

-3.86E-03 3.92E-05 1.09E-04 7.06E-03 1.33E-04 3.73E-04 2.30E-02 4.56E-04 U

U U

3 AP 04 295624004 12/28/2011 Cs-137 1.97E-05 1.12E-04 3.66E-04 U AP 04 295624004 12/28/2011 Fe-59 -1.61E-04 8.11E-04 2.62E-03 U AP 04 295624004 12/28/2011 1-131 1.1OE-01 2.54E-01 0.OOE+00 UL AP 04 295624004 12/28/2011 La-140 -1.07E-02 2.11E-02 6.58E-02 U AP 04 295624004 12/28/2011 Mn-54 -6.3 1E-05 1.36E-04 4.39E-04 U AP 04 295624004 12/28/2011 Nb-95 7.79E-04 3.61E-04 1.16E-03 U AP 04 295624004 12/28/2011 Ru-103 -8.75E-07 4.43E-04 1.46E-03 U AP 04 295624004 12/28/2011 Ru-106 9.50E-04 1.07E-03 3.62E-03 U AP 04 295624004 12/28/2011 Sb-124 4.28E-04 6.65E-04 2.38E-03 U AP 04 295624004 12/28/2011 Sb-125 2.27E-06 2.29E-04 7.59E-04 U AP 04 295624004 12/28/2011 Se-75 2.86E-04 2.20E-04 7.09E-04 U AP 04 295624004 12/28/2011 Th-228 2.11E-06 2.14E-04 6.53E-04 U AP 04 295624004 12/28/2011 Zn-65 -1.99E-04 3.03E-04 9.23E-04 U AP 04 295624004 12/28/2011 Zr-95 1.93E-04 4.53E-04 1.5 1E-03 U AP 05 270289005 1/11/2011 BETA 3.85E-02 1.48E-03 5.47E-04 AP 05 271270005 1/26/2011 BETA 2.50E-02 1.I1E-03 5.48E-04 AP 05 272216005 2/9/2011 BETA 3.67E-02 1.42E-03 8.60E-04 AP AP AP 05 05 05 272943005 273849005 274665005 2/23/2011 3/9/2011 3/23/2011 BETA BETA BETA 3.42E-02 3.06E-02 2.36E-02 1.35E-03 1.32E-03 1.14E-03 6.12E-04 9.17E-04 5.69E-04 3

AP 05 274937005 3/30/2011 BETA 4.34E-02 2.25E-03 1.82E-03 AP 05 277523005 3/30/2011 Ac-228 -4.19E-04 4.07E-04 1.21E-03 U AP 05 277523005 3/30/2011 Ag-108m -1.26E-04 7.68E-05 2.1OE-04 U AP AP 05 05 277523005 277523005 3/30/2011 3/30/2011 Ag-l10m Ba-140

-8.65E-05 1.39E-02 1.13E-04 2.24E-02 3.37E-04 7.81E-02 U

U 3 149

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 05 277523005 3/30/2011 Be-7 1.03E-01 8.13E-03 7.49E-03 AP 05 277523005 3/30/2011 Ce-141 6.48E-04 6.68E-04 2.25E-03 AP 05 277523005 3/30/2011 Ce-144 2.80E-04 4.63E-04 1.57E-03 AP 05 277523005 3/30/2011 Co-57 -7.11E-05 5.79E-05 1.76E-04 AP 05 277523005 3/30/2011 Co-58 -4.98E-04 2.82E-04 6.24E-04 AP 05 277523005 3/30/2011 Co-60 2.35E-04 1.26E-04 4.46E-04 AP 05 277523005 3/30/2011 Cr-51 2.95E-03 6.16E-03 2.13E-02 AP 05 277523005 3/30/2011 Cs-134 1.04E-04 1.1 8E-04 4.14E-04 AP 05 277523005 3/30/2011 Cs-137 6.30E-05 9.62E-05 3.22E-04 AP 05 277523005 3/30/2011 Fe-59 2.06E-04 7.06E-04 2.38E-03 AP 05 277523005 3/30/2011 1-131 2.18E-01 2.42E-01 0.OOE+00 AP 05 277523005 3/30/2011 La-140 1.39E-02 2.24E-02 7.81E-02 AP 05 277523005 3/30/2011 Mn-54 1.42E-05 1.16E-04 3.91E-04 AP 05 277523005 3/30/2011 Nb-95 -1.06E-04 2.33E-04 7.55E-04 AP 05 277523005 3/30/2011 Ru-103 -2.06E-04 3.55E-04 1.11E-03 AP 05 277523005 3/30/2011 Ru-106 -3.OOE-04 9.77E-04 3.09E-03 AP 05 277523005 3/30/2011 Sb-124 -2. 19E-04 5.32E-04 1.62E-03 AP 05 277523005 3/30/2011 Sb-125 -1.77E-04 2.28E-04 7.11E-04 AP 05 277523005 3/30/2011 Se-75 6.50E-05 1.61E-04 5.25E-04 AP 05 277523005 3/30/2011 Th-228 6.9 1E-05 1.68E-04 5.75E-04 AP 05 277523005 3/30/2011 Zn-65 4.OOE-04 2.58E-04 8.64E-04 AP 05 277523005 3/30/2011 Zr-95 4.81E-04 4.23E-04 1.49E-03 AP 05 277843002 4/6/2011 Ac-228 -1.07E-02 6.99E-03 2.04E-02 AP 05 277843002 4/6/2011 Ag-108m -5.60E-04 1.01E-03 3.17E-03 AP 05 277843002 4/6/2011 Ag-I 10m 6.13E-04 1.65E-03 4.67E-03 AP 05 277843002 4/6/2011 Ba-140 -1.20E-04 1.89E-02 6.21 E-02 AP 05 277843002 4/6/2011 Be-7 1.66E-01 3. 1OE-02 4.70E-02 AP 05 277843002 4/6/2011 Ce-141 8.94E-04 3.61E-03 1.22E-02 AP 05 277843002 4/6/2011 Ce-144 -1.33E-03 6.62E-03 2.23E-02 AP 05 277843002 4/6/2011 Co-57 7.13E-05 8.17E-04 2.60E-03 AP 05 277843002 4/6/2011 Co-58 -2.35E-03 2.OOE-03 5.97E-03 AP 05 277843002 4/6/2011 Co-60 2.20E-04 1.63E-03 5.36E-03 AP 05 277843002 4/6/2011 Cr-51 -5.56E-02 2.65E-02 7.01E-02 AP 05 277843002 4/6/2011 Cs-134 7.95E-03 2.8 1E-03 7.70E-03 AP 05 277843002 4/6/2011 Cs-137 1.19E-02 2.64E-03 4.18E-03 AP 05 277843002 4/6/2011 Fe-59 6.11E-04 4.88E-03 1.63E-02 AP 05 277843002 4/6/2011 1-131 7.67E-02 5.25E-02 1.70E-01 AP 05 277843002 4/6/2011 La-140 -1.20E-04 1.89E-02 6.2 1E-02 AP 05 277843002 4/6/2011 Mn-54 -2.02E-03 1.49E-03 4.32E-03 AP 05 277843002 4/6/2011 Nb-95 -1.27E-03 1.84E-03 5.85E-03 AP 05 277843002 4/6/2011 Ru-103 -1.73E-03 2.09E-03 6.59E-03 AP 05 277843002 4/6/2011 Ru-106 -2.73E-04 1.21E-02 3.97E-02 AP 05 277843002 4/6/2011 Sb-124 2.92E-03 4.97E-03 1.69E-02 AP 05 277843002 4/6/2011 Sb-125 1.67E-03 3.18E-03 1.04E-02 AP 05 277843002 4/6/2011 Se-75 -1.08E-03 1.78E-03 5.50E-03 AP 05 277843002 4/6/2011 Th-228 1.63E-03 2.53E-03 6.8 1E-03 AP 05 277843002 4/6/2011 Zn-65 -5.23E-03 3.79E-03 1.1 OE-02 AP 05 277843002 4/6/2011 Zr-95 -2.80E-03 3.49E-03 1.1OE-02 AP 05 275574005 4/6/2011 BETA 8.76E-02 3.22E-03 1.04E-03 AP 05 276545005 4/20/2011 BETA 4.99E-02 1.74E-03 8.18E-04 AP 05 277483005 5/3/2011 BETA 2.40E-02 1.25E-03 7.90E-04 150

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP AP 05 05 278643005 279338005 5/18/2011 6/1/2011 BETA BETA 1.55E-02 2.53E-02 9.31E-04 1.28E-03 5.12E-04 9.78E-04 l

AP 05 280318005 6/15/2011 BETA 1.61E-02 8.94E-04 5.62E-04 AP 05 281129005 6/29/2011 BETA 1.63E-02 8.94E-04 6.60E-04 AP 05 284171005 6/29/2011 Ac-228 9.66E-04 7.42E-04 2.79E-03 U AP 05 284171005 6/29/2011 Ag-108m 3.84E-05 9.61E-05 3.26E-04 U AP 05 284171005 6/29/2011 Ag-110m 3.74E-04 2.36E-04 7.69E-04 U AP 05 284171005 6/29/2011 Ba-140 6.56E-02 7.88E-02 0.OOE+00 UI AP 05 284171005 6/29/2011 Be-7 8.OOE-02 1.16E-02 1.33E-02 AP 05 284171005 6/29/2011 Ce-141 3.75E-04 1.38E-03 4.56E-03 U AP 05 284171005 6/29/2011 Ce-144 -6.90E-04 8.35E-04 2.54E-03 U AP AP 05 05 284171005 284171005 6/29/2011 6/29/2011 Co-57 Co-58 1.47E-05 1.81E-04 1.08E-04 3.93E-04 3.57E-04 1.36E-03 U

U I

AP 05 284171005 6/29/2011 Co-60 1.52E-04 2.19E-04 7.78E-04 U AP 05 284171005 6/29/2011 Cr-51 -5.05E-02 1.90E-02 3.75E-02 U AP 05 284171005 6/29/2011 Cs-134 7.33E-04 4.24E-04 1.11E-03 U AP 05 284171005 6/29/2011 Cs-137 1.30E-03 3.95E-04 6.34E-04 M AP 05 284171005 6/29/2011 Fe-59 -9.60E-04 1.58E-03 5.06E-03 U AP 05 284171005 6/29/2011 1-131 -1.78E-01 1.09E+00 0.OOE+00 U AP 05 284171005 6/29/2011 La-140 6.56E-02 7.87E-02 0.00E+00 UI AP 05 284171005 6/29/2011 Mn-54 -2.27E-04, 2.20E-04 6.22E-04 U AP 05 284171005 6/29/2011 Nb-95 8.69E-05 4.65E-04 1.64E-03 U AP 05 284171005 6/29/2011 Ru-103 -4.65E-04 9.81E-04 3.03E-03 U AP AP AP 05 05 05 284171005 284171005 284171005 6/29/2011 6/29/2011 6/29/2011 Ru-106 Sb-124 Sb-125

-1.84E-03 6.39E-04

-8.13E-05 1.86E-03 1.67E-03 3.66E-04 5.56E-03 5.67E-03 1.17E-03 U

U U

3 AP 05 284171005 6/29/2011 Se-75 5.79E-05 3.18E-04 1.08E-03 U AP 05 284171005 6/29/2011 Th-228 2.62E-04 4.58E-04 9.85E-04 U AP 05 284171005 6/29/2011 Zn-65 -8.06E-04 5.34E-04 1.33E-03 U AP 05 284171005 6/29/2011 Zr-95 1.26E-03 6.97E-04 2.59E-03 U AP 05 282335005 7/13/2011 BETA 2.94E-02 1.22E-03 5.89E-04 AP 05 283010005 7/27/2011 BETA 3.52E-02 1.52E-03 9.84E-04 AP 05 284042005 8/10/2011 BETA 2.82E-02 1.36E-03 9.82E-04 AP AP AP 05 05 05 284899005 285758005 286566005 8/24/2011 9/7/2011 9/21/2011 BETA BETA BETA 2.75E-02 3.51E-02 2.91E-02 1.34E-03 1.48E-03 1.34E-03 9.03E-04 7.33E-04 7.29E-04 3

AP 05 290255005 9/21/2011 Ac-228 -6.30E-04 5.70E-04 1.85E-03 U AP AP AP 05 05 05 290255005 290255005 290255005 9/21/2011 9/21/2011 9/21/2011 Ag-108m Ag-lr0m Ba-140 8.93E-05 1.13E-04 2.43E-02 1.03E-04 1.70E-04 6.30E-02 3.57E-04 6.OOE-04 0.OOE+00 U

U UI I

AP 05 290255005 9/21/2011 Be-7 1.45E-01 1.32E-02 1.15E-02 AP 05 290255005 9/21/2011 Ce-141 -2.57E-03 1.41E-03 3.57E-03 U AP 05 290255005 9/21/2011 Ce-144 2.92E-04 7.OOE-04 2.34E-03 U AP AP AP 05 05 05 290255005 290255005 290255005 9/21/2011 9/21/2011 9/21/2011 Co-57 Co-58 Co-60 1.06E-06

-1.66E-04

-7.93E-05 8.91E-05 2.57E-04 1.30E-04 2.93E-04 7.52E-04 3.82E-04 U

U U

3 AP 05 290255005 9/21/2011 Cr-51 -1.17E-02 1.54E-02 4.80E-02 U AP 05 290255005 9/21/2011 Cs-134 -4.13E-05 1.57E-04 5.05E-04 U AP 05 290255005 9/21/2011 Cs-137 -2.53E-04 1.45E-04 3.97E-04 U AP 05 290255005 9/21/2011 Fe-59 1.99E-03 1.39E-03 5.09E-03 U AP 05 290255005 9/21/2011 1-131 7.82E-01 1.68E+00 0.OOE+00 UL 151

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 05 290255005 9/21/2011 La-140 2.43E-02 6.30E-02 0.OOE+00 AP 05 290255005 9/21/2011 Mn-54 1.80E-04 1.63E-04 5.85E-04 AP 05 290255005 9/21/2011 Nb-95 7.51E-04 4.28E-04 1.55E-03 AP 05 290255005 9/21/2011 Ru-103 7.08E-04 7.90E-04 2.72E-03 AP 05 290255005 9/21/2011 Ru-106 1.76E-03 1.53E-03 5.27E-03 AP 05 290255005 9/21/2011 Sb-124 -9.66E-04 1.23E-03 3.35E-03 AP 05 290255005 9/21/2011 Sb-125 2.66E-04 3.58E-04 1.23E-03 AP 05 290255005 9/21/2011 Se-75 2.38E-04 2.54E-04 8.89E-04 AP 05 290255005 9/21/20 11 Th-228 3.57E-04 2.36E-04 7.89E-04 AP 05 290255005 9/21/2011 Zn-65 -3.65E-04 3.97E-04 1.07E-03 AP 05 290255005 9/21/2011 Zr-95 5.03E-04 6.84E-04 2.44E-03 AP 05 287586005 10/5/2011 BETA 2.24E-02 1.21E-03 6.26E-04 AP 05 288558005 10/19/2011 BETA 3.86E-02 1.59E-03 5.55E-04 AP 05 289564005 11/2/2011 BETA 1.95E-02 1.14E-03 9.35E-04 AP 05 290711005 11/16/2011 BETA 4.12E-02 1.66E-03 9.39E-04 AP 05 291292005 11/30/2011 BETA 4.15E-02 1.72E-03 6.56E-04 AP 05 292257005 12/14/2011 BETA 3.42E-02 1.55E-03 7.04E-04 AP 05 293075005 12/28/2011 BETA 3.64E-02 1.60E-03 7.06E-04 AP 05 295624005 12/28/2011 Ac-228 3.43E-04 6.77E-04 2.20E-03 AP 05 295624005 12/28/2011 Ag-108m 3.06E-05 1.14E-04 3.84E-04 AP 05 295624005 12/28/2011 Ag-110m -4.04E-04 2.12E-04 5.46E-04 AP 05 295624005 12/28/2011 Ba-140 1.05E-03 2.85E-02 9.34E-02 AP 05 295624005 12/28/2011 Be-7 i.25E-01 1.02E-02 1.19E-02 AP 05 295624005 12/28/2011 Ce-141 -2.9 1E-03 1.25E-03 3.1OE-03 AP 05 295624005 12/28/2011 Ce-144 9.03E-04 6.83E-04 2.27E-03 AP 05 295624005 12/28/2011 Co-57 8.39E-07 8.80E-05 2.80E-04 AP 05 295624005 12/28/2011 Co-58 -6.14E-05 4.08E-04 1.35E-03 AP 05 295624005 12/28/2011 Co-60 -2.24E-04 1.80E-04 5.13E-04 AP 05 295624005 12/28/2011 Cr-51 4.76E-03 1.05E-02 3.4 1E-02 AP 05 295624005 12/28/2011 Cs-134 -2.05E-04 2.01E-04 6.15E-04 AP 05 295624005 12/28/2011 Cs-137 8.63E-05 1.66E-04 5.46E-04 AP 05 295624005 12/28/2011 Fe-59 3.44E-03 1.57E-03 5.01E-03 AP 05 295624005 12/28/2011 1-131 4.91E-01 3.67E-01 0.OOE+00 AP 05 295624005 12/28/2011 La-140 1.05E-03 2.85E-02 9.34E-02 AP 05 295624005 12/28/2011 Mn-54 -4.44E-04 2.28E-04 6.01E-04 AP 05 295624005 12/28/2011 Nb-95 -2.37E-05 3.91E-04 1.30E-03 AP 05 295624005 12/28/2011 Ru-i103 -7.53E-04 6.48E-04 1.95E-03 AP 05 295624005 12/28/2011 Ru-106 -1.66E-04 1.59E-03 5.13E-03 AP 05 295624005 12/28/2011 Sb-124 4.90E-04 9.23E-04 3.14E-03 AP 05 295624005 12/28/2011 Sb-125 4.88E-04 4.05E-04 1.36E-03 AP 05 295624005 12/28/2011 Se-75 -2.42E-05 2.57E-04 8.37E-04 AP 05 295624005 12/28/2011 Th-228 3.54E-04 3.04E-04 7.66E-04 AP 05 295624005 12/28/2011 Zn-65 7.OOE-04 5.14E-04 1.71E-03 AP 05 295624005 12/28/2011 Zr-95 9.39E-04 6.91E-04 2.35E-03 AP 07 270289006 1/11/2011 BETA 4.17E-02 1.57E-03 7.01E-04 AP 07 271270006 1/26/2011 BETA 2.60E-02 1.14E-03 5.91E-04 AP 07 272216006 2/9/2011 BETA 3.89E-02 1.48E-03 7.68E-04 AP 07 272943006 2/23/2011 BETA 3.40E-02 1.35E-03 8.13E-04 AP 07 273849006 3/9/2011 BETA 3.30E-02 1.36E-03 8.95E-04 AP 07 274665006 3/23/2011 BETA 2.36E-02 1.17E-03 9.08E-04 AP 07 274937006 3/30/2011 BETA 4.42E-02 2.22E-03 1.54E-03 152

Seabrook REMP Summary of 2011 Data U

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/m3)

STD.DEV.

(pCi/m3)

MDC (pCi/m3)

FLAGS 5 AP 07 277523006 3/30/2011 Ac-228 -1.18E-04 5.64E-04 1.85E-03 U AP 07 277523006 3/30/2011 Ag-108m -9.50E-05 8.64E-05 2.54E-04 U AP 07 277523006 3/30/2011 Ag-110m 2.15E-05 1.23E-04 4.17E-04 U AP 07 277523006 3/30/2011 Ba-140 1.44E-02 1.78E-02 6.36E-02 U AP 07 277523006 3/30/2011 Be-7 1.12E-01 8.86E-03 8.OOE-03 AP 07 277523006 3/30/2011 Ce-141 -1.25E-03 9.27E-04 2.62E-03 U AP 07 277523006 3/30/2011 Ce-144 5.52E-04 5.06E-04 1.67E-03 U AP 07 277523006 3/30/2011 Co-57 -2.72E-05 6.32E-05 2.03E-04 U AP 07 277523006 3/30/2011 Co-58 1.15E-04 2.34E-04 7.95E-04 U AP 07 277523006 3/30/2011 Co-60 -7.34E-05 1.36E-04 4.21E-04 U AP 07 277523006 3/30/2011 Cr-51 -1.07E-02 7.60E-03 2.22E-02 U AP 07 277523006 3/30/2011 Cs-134 7.19E-05 1.30E-04 4.43E-04 U AP 07 277523006 3/30/2011 Cs-137 -1.86E-04 1.20E-04 3.33E-04 U AP 07 277523006 3/30/2011 Fe-59 1.16E-03 8.04E-04 2.90E-03 U AP 07 277523006 3/30/2011 1-131 -1.lIE-01 2.81E-01 0.OOE+00 U AP 07 277523006 3/30/2011 La-140 1.44E-02 1.78E-02 6.36E-02 U AP 07 277523006 3/30/2011 Mn-54 3.18E-05 1.20E-04 4.OOE-04 U AP 07 277523006 3/30/2011 Nb-95 2.08E-04 2.68E-04 9.22E-04 U AP 07 277523006 3/30/2011 Ru-103 3.18E-04 4.44E-04 1.48E-03 U AP 07 277523006 3/30/2011 Ru-106 9.56E-04 1.05E-03 3.64E-03 U AP 07 277523006 3/30/2011 Sb-124 -7.02E-04 8.62E-04 2.44E-03 U AP 07 277523006 3/30/2011 Sb-125 -2.71E-04 2.61E-04 7.70E-04 U AP 07 277523006 3/30/2011 Se-75 -1.86E-04 1.75E-04 5.43E-04 U AP 07 277523006 3/30/2011 Th-228 -8.59E-05 1.70E-04 5.36E-04 U AP 07 277523006 3/30/2011 Zn-65 3.19E-04 3.64E-04 1.27E-03 U AP 07 277523006 3/30/2011 Zr-95 4.29E-04 5.12E-04 1.76E-03 U AP 07 275574006 4/6/2011 BETA 7.17E-02 2.91E-03 1.92E-03 AP 07 276545006 4/20/2011 BETA 4.29E-02 1.54E-03 7.04E-04 AP 07 277483006 5/3/2011 BETA 2.12E-02 1.14E-03 6.38E-04 AP 07 278643006 5/18/2011 BETA 1.33E-02 8.42E-04 5.32E-04 AP 07 279338006 6/1/2011 BETA 2.34E-02 1.14E-03 7.46E-04 AP 07 .280318006 6/15/2011 BETA 1.85E-02 9.50E-04 8.24E-04 AP 07 281129006 6/29/2011 BETA 1.81E-02 9.12E-04 5.75E-04 AP AP AP 07 07 07 284171006 284171006 284171006 6/29/2011 6/29/2011 6/29/2011 Ac-228 Ag-108m Ag-110m

-2.74E-03 3.06E-05

-2.93E-04 1.14E-03 1.90E-04 4.50E-04 1.97E-03 6.28E-04 1.20E-03 U

U U

3 AP 07 284171006 6/29/2011 Ba-140 8.77E-03 8.19E-02 0.OOE+00 UI AP 07 284171006 6/29/2011 Be-7 1.13E-01 1.81E-02 2.30E-02 AP 07 284171006 6/29/2011 Ce-141 -2.77E-03 2.17E-03 6.23E-03 U AP 07 284171006 6/29/2011 Ce-144 2.62E-03 1.33E-03 4.19E-03 U AP 07 284171006 6/29/2011 Co-57 3.61E-05 1.38E-04 4.58E-04 U AP 07 284171006 6/29/2011 Co-58 3.OOE-04 7.41E-04 2.53E-03 U AP 07 284171006 6/29/2011 Co-60 -7.67E-05 3.89E-04 1.26E-03 U AP 07 284171006 6/29/2011 Cr-51 3.24E-03 2.12E-02 7.11E-02 U AP 07 284171006 6/29/2011 Cs-134 6.26E-04 4.54E-04 1.58E-03 U AP 07 284171006 6/29/2011 Cs-137 7.16E-04 5.84E-04 1.05E-03 U AP 07 284171006 6/29/2011 Fe-59 4.07E-03 2.57E-03 9.56E-03 U AP 07 284171006 6/29/2011 1-131 -1.75E+00 1.85E+00 0.OOE+00 U AP 07 284171006 6/29/2011 La-140 8.77E-03 8.19E-02 0.OOE+00 UI AP 07 284171006 6/29/2011 Mn-54 6.70E-04 3.84E-04 1.35E-03 U AP 07 284171006 6/29/2011 Nb-95 -1.03E-03 8.23E-04 2.23E-03 U 153 3

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 07 284171006 6/29/2011 Ru-103 1.56E-03 1.35E-03 4.65E-03 AP 07 284171006 6/29/2011 Ru-106 -4.53E-03 2.90E-03 7.63E-03 AP 07 284171006 6/29/2011 Sb-124 -1.41E-03 1.71E-03 4.98E-03 AP 07 284171006 6/29/2011 Sb-125 -9.97E-04 7.48E-04 2.06E-03 AP 07 284171006 6/29/2011 Se-75 2.06E-04 4.06E-04 1.40E-03 AP 07 284171006 6/29/2011 Th-228 4.18E-05 3.78E-04 1.32E-03 AP 07 284171006 6/29/2011 Zn-65 4.23E-04 1.05E-03 3.64E-03 AP 07 284171006 6/29/2011 Zr-95 -1.38E-03 1.34E-03 3.76E-03 AP 07 282335006 7/13/2011 BETA 3.07E-02 1.23E-03 8.09E-04 AP 07 283010006 7/27/2011 BETA 3.26E-02 1.42E-03 9.25E-04 AP 07 284042006 8/10/2011 BETA 2.76E-02 1.31E-03 9.34E-04 AP 07 284899006 8/24/2011 BETA 2.57E-02 1.25E-03 8.48E-04 AP 07 285758006 9/7/2011 BETA 3.06E-02 1.35E-03 6.99E-04 AP 07 286566006 9/21/2011 BETA 2.84E-02 1.33E-03 7.3 1E-04 AP 07 290255006 9/21/2011 Ac-228 1.79E-04 4.44E-04 1.50E-03 AP 07 290255006 9/21/2011 Ag-108m -1.24E-06 8.73E-05 2.93E-04 AP 07 290255006 9/21/2011 Ag-i 10m 1.78E-04 1.64E-04 5.73E-04 AP 07 290255006 9/21/2011 Ba-140 -2.64E-02 5.21E-02 0.OOE+00 AP 07 290255006 9/21/2011 Be-7 1.11 E-01 1.16E-02 1.1 8E-02 AP 07 290255006 9/21/2011 Ce-141 -1.69E-03 1.37E-03 4.08E-03 AP 07 290255006 9/21/2011 Ce-144 -8.42E-05 5.92E-04 1.97E-03 AP 07 290255006 9/21/2011 Co-57 -5.11 E-05 7.69E-05 2.46E-04 AP 07 290255006 9/21/2011 Co-58 8.72E-05 2.67E-04 9.06E-04 AP 07 290255006 9/21/2011 Co-60 -1.82E-04 1.49E-04 3.63E-04 AP 07 290255006 9/21/2011 Cr-51 -1.32E-03 1.38E-02 4.44E-02 AP 07 290255006 9/21/2011 Cs-134 -9.64E-05 1.77E-04 5.35E-04 AP 07 290255006 9/21/2011 Cs-137 9.84E-05 1.1 8E-04 4.14E-04 AP 07 290255006 9/21/2011 Fe-59 4.04E-04 9.29E-04 3.32E-03 AP 07 290255006 9/21/2011 1-131 9.08E-02 1.41E+00 0.OOE+00 AP 07 290255006 9/21/2011 La-140 -2.64E-02 5.2 1E-02 0.OOE+00 AP 07 290255006 9/21/2011 Mn-54 -2.66E-04 1.60E-04 3.53E-04 AP 07 290255006 9/21/2011 Nb-95 -1.69E-04 3.94E-04 1.22E-03 AP 07 290255006 9/21/2011 Ru-103 -4.26E-04 5.83E-04 1.77E-03 AP 07 290255006 9/21/2011 Ru-106 6.24E-04 1.34E-03 4.56E-03 AP 07 290255006 9/21/2011 Sb-124 -1.57E-04 1.31E-03 4.16E-03 AP 07 290255006 9/21/2011 Sb-125 -3.46E-04 3.14E-04 9.11E-04 AP 07 290255006 9/21/2011 Se-75 1.54E-04 2.14E-04 7.24E-04 AP 07 290255006 9/21/2011 Th-228 6.66E-05 2.08E-04 7.03E-04 AP 07 290255006 9/21/2011 Zn-65 1.18E-04 3.20E-04 1.12E-03 AP 07 290255006 9/21/2011 Zr-95 -4.85E-04 7.3 1E-04 2.18E-03 AP 07 287586006 10/5/2011 BETA 2.14E-02 1.21E-03 6.47E-04 AP 07 288558006 10/19/2011 BETA 2.91 E-02 1.27E-03 4.74E-04 AP 07 289564006 11/2/2011 BETA 2.05E-02 1.29E-03 1.14E-03 AP 07 290711006 11/16/2011 BETA 3.74E-02 1.65E-03 1.02E-03 AP 07 291292006 11/30/2011 BETA 3.90E-02 1.73E-03 7.12E-04 AP 07 292257006 12/14/2011 BETA 3.45E-02 1.62E-03 7.64E-04 AP 07 293075006 12/28/2011 BETA 3.43E-02 1.62E-03 7.70E-04 AP 07 295624006 12/28/2011 Ac-228 -7.62E-05 3.66E-04 1.07E-03 AP 07 295624006 12/28/2011 Ag-108m -8.01 E-06 5.O0E-05 1.67E-04 AP 07 295624006 12/28/2011 Ag-110m 1.96E-04 9.11 E-05 3.08E-04 AP 07 295624006 12/28/2011 Ba-140 -1.16E-02 1.27E-02 3.35E-02 154

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/m3)

STD.DEV.

(pCi/m3)

MDC (pCi/m3)

FLAGS I AP AP 295624006 295624006 12/28/2011 12/28/2011 Be-7 Ce-141 1.09E-01 4.90E-04 8.14E-03 5.17E-04 5.29E-03 1.75E-03 U a

AP 295624006 12/28/2011 Ce-144 1.67E-04 3.96E-04 1.34E-03 U AP AP 295624006 295624006 12/28/2011 12/28/2011 Co-57 Co-58 1.12E-04

-6.57E-05

-6.43E-05 5.62E-05 1.67E-04 1.80E-04 5.19E-04 U

U I

AP 295624006 12/28/2011 Co-60 8.80E-05 2.58E-04 U AP AP AP 295624006 295624006 295624006 12/28/2011 12/28/2011 12/28/2011 Cr-51 Cs-134 Cs-137 1.19E-03

-2.38E-04

-3.22E-05 5.35E-03 1.22E-04 7.64E-05 1.75E-02 2.83E-04 2.42E-04 U

U U

I AP AP AP 295624006 295624006 295624006 12/28/2011 12/28/2011 12/28/2011 Fe-59 1-131 La- 140

-6.67E-05 1.26E-01

-1. 16E-02 5.36E-04 1.90E-01 1.27E-02 1.76E-03 0.OOE+00 3.35E-02 U

UI U

U AP 295624006 12/28/2011 Mn-54 1.61E-04 1.01E-04 3.44E-04 U AP AP 295624006 295624006 12/28/2011 12/28/2011 Nb-95 Ru-103 2.29E-04 9.73E-05 1.87E-04 2.89E-04 6.46E-04 9.83E-04 U

U I

AP 295624006 12/28/2011 Ru-106 2.01E-03 8.94E-04 2.94E-03 U AP AP AP 295624006 295624006 295624006 12/28/2011 12/28/2011 12/28/2011 Sb- 124 Sb-125 Se-75 8.85E-04 3.21E-04

-3.49E-05 5.30E-04 1.90E-04 1.37E-04 2.OOE-03 6.49E-04 4.39E-04 U

U U

I I

AP 295624006 12/28/2011 Th-228 2.21E-04 1.84E-04 4.59E-04 U AP 295624006 12/28/2011 Zn-65 4.22E-05 1.85E-04 6.29E-04 U AP 295624006 12/28/2011 Zr-95 5.87E-04 3.46E-04 1.20E-03 U AP 270289007 1/11/2011 BETA 4.05E-02 1.54E-03 6.26E-04 AP AP 271270007 272216007 1/26/2011 2/9/2011 BETA BETA 2.64E-02 3.70E-02 1.15E-03 1.42E-03 6.03E-04 8.18E-04 I AP 272943007 2/23/2011 BETA 3.30E-02 1.33E-03 6.58E-04 AP AP AP 273849007 274665007 274937007 3/9/2011 3/23/2011 3/30/2011 BETA BETA BETA 3.08E-02 2.3 1E-02 4.78E-02 1.30E-03 1.14E-03 2.24E-03 7.46E-04 7.72E-04 1.48E-03 I

8.78E-04 4.44E-04 1.51E-03 U AP AP AP 277523007 277523007 277523007 3/30/2011 3/30/2011 3/30/2011 Ac-228 Ag-108m Ag-I 10m

-1.01E-04

-2.85E-04 7.63E-05 1.36E-04 2.20E-04 3.14E-04 U

U I

AP 277523007 3/30/2011 Ba-140 -2.66E-03 2.11E-02 6.75E-02 U AP AP 277523007 277523007 3/30/2011 3/30/2011 Be-7 Ce-141 1.04E-01 1.54E-03 8.88E-03 7.48E-04 7.15E-03 2.31E-03 U U

I AP 277523007 3/30/2011 Ce-144 -1.35E-04 4.98E-04 1.59E-03 AP AP AP 277523007 277523007 277523007 3/30/2011 3/30/2011 3/30/2011 Co-57 Co-58 Co-60

-5.19E-05

-2.8 1E-04 9.87E-05 6.53E-05 2.08E-04 1.20E-04 2.01E-04 5.82E-04 4.19E-04 U

U U

I AP 277523007 3/30/2011 1.80E-02 7.29E-03 2.25E-02 U I

Cr-51 AP 277523007 3/30/2011 Cs-134 6.3 1E-05 1.19E-04 4.14E-04 U AP 277523007 3/30/2011 Cs-137 1.45E-04 1.12E-04 3.76E-04 U AP 277523007 3/30/2011 Fe-59 -2.54E-05 7.74E-04 2.56E-03 U AP AP 277523007 277523007 3/30/2011 3/30/2011 1-131 La-140

-8.36E-02

-2.66E-03 2.49E-01 2.11E-02 0.OOE+00 6.75E-02 U

U I AP 277523007 3/30/2011 Mn-54 2.66E-05 1.04E-04 3.56E-04 U AP AP AP 277523007 277523007 277523007 3/30/2011 3/30/2011 3/30/2011 Nb-95 Ru-103 Ru-106

-1.28E-04

-2.18E-04 5.42E-06 2.80E-04 3.47E-04 9.93E-04 8.66E-04 1.07E-03 3.23E-03 U

U U

I 277523007 -4.3 1E-04 6.34E-04 1.81E-03 U AP AP 277523007 3/30/2011 3/30/2011 Sb-124 Sb-125 -6.53E-04 3.06E-04 7.64E-04 U I 155 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 08 277523007 3/30/2011 Se-75 -1.98E-04 1.81E-04 5.63E-04 U AP 08 277523007 3/30/2011 Th-228 4.79E-04 3.OOE-04 5.44E-04 U AP 08 277523007 3/30/2011 Zn-65 -2.67E-04 2.68E-04 7.76E-04 U AP 08 277523007 3/30/2011 Zr-95 2.13E-04 4.34E-04 1.45E-03 U AP 08 275574007 4/6/2011 BETA 7.37E-02 2.90E-03 1.60E-03 AP 08 276545007 4/20/2011 BETA 5.03E-02 1.67E-03 8.28E-04 AP 08 277483007 5/3/2011 BETA 2.43E-02 1.23E-03 9.41E-04 AP 08 278643007 5/18/2011 BETA 1.12E-02 7.30E-04 6.98E-04 AP 08 279338007 6/1/2011 BETA 2.11E-02 8.88E-04 5.50E-04 AP 08 280318007 6/15/2011 BETA 1.93E-02 9.60E-04 6.55E-04 AP 08 281129007 6/29/2011 BETA 1.68E-02 8.95E-04 5.18E-04 AP 08 284171007 6/29/2011 Ac-228 -8.99E-04 6.88E-04 1.78E-03 U AP 08 284171007 6/29/2011 Ag-108m 9.65E-05 1.29E-04 4.32E-04 U AP 08 284171007 6/29/2011 Ag-110m 1.11 E-04 1.95E-04 5.98E-04 U AP 08 284171007 6/29/2011 Ba-140 1.31E-02 2.64E-02 0.OOE+00 UI AP 08 284171007 6/29/2011 Be-7 1.06E-01 1.13E-02 1.54E-02 AP 08 284171007 6/29/2011 Ce-141 1.1 7E-03 1.36E-03 4.5 1E-03 U AP 08 284171007 6/29/2011 Ce-144 3.49E-04 7.28E-04 2.42E-03 U AP 08 284171007 6/29/2011 Co-57 -7.80E-05 9.06E-05 2.75E-04 U AP 08 284171007 6/29/2011 Co-58 -4.72E-04 3.76E-04 9.71E-04 U AP 08 284171007 6/29/2011 Co-60 -1.69E-05 2.01E-04 6.73E-04 U AP 08 284171007 6/29/2011 Cr-51 -1.62E-02 1.27E-02 3.63E-02 U AP 08 284171007 6/29/2011 Cs-134 6.86E-04 3.32E-04 1.11E-03 U AP 08 284171007 6/29/2011 Cs-137 1.09E-03 2.23E-04 4.5 1E-04 M AP 08 284171007 6/29/2011 Fe-59 7.12E-04 1.56E-03 5.4 1E-03 U AP 08 284171007 6/29/2011 1-131 1.01E+00 7.28E-01 0.OOE+00 UI AP 08 284171007 6/29/2011 La-140 1.31E-02 2.63E-02 0.OOE+00 UI AP 08 284171007 6/29/2011 Mn-54 -9.48E-05 1.49E-04 4.33E-04 U AP 08 284171007 6/29/2011 Nb-95 -8.50E-04 4.84E-04 1.19E-03 U AP 08 284171007 6/29/2011 Ru-103 8.66E-04 6.56E-04 2.35E-03 U AP 08 284171007 6/29/2011 Ru-106 -7.39E-04 1.59E-03 5.04E-03 U AP 08 284171007 6/29/2011 Sb-124 1.69E-03 1.36E-03 5.09E-03 U AP 08 284171007 6/29/2011 Sb-125 -8.04E-05 4.07E-04 1.29E-03 U AP 08 284171007 6/29/2011 Se-75 -3.53E-05 2.70E-04 8.95E-04 U AP 08 284171007 6/29/2011 Th-228 -3.40E-04 2.45E-04 7.39E-04 U AP 08 284171007 6/29/2011 Zn-65 -4.42E-05 5.20E-04 1.71E-03 U AP 08 284171007 6/29/2011 Zr-95 1.09E-03 7.54E-04 2.68E-03 U AP 08 282335007 7/13/2011 BETA 3.14E-02 1.26E-03 6.76E-04 AP 08 283010007 7/27/2011 BETA 3.44E-02 1.48E-03 9.57E-04 AP 08 284042007 8/10/2011 BETA 2.58E-02 1.28E-03 9.49E-04 AP 08 284899007 8/24/2011 BETA 3.07E-02 1.39E-03 8.72E-04 AP 08 285758007 9/7/2011 BETA 3.16E-02 1.38E-03 7.06E-04 AP 08 286566007 9/21/2011 BETA 2.41E-02 1.22E-03 7.26E-04 AP 08 290255007 9/21/2011 Ac-228 2.08E-04 5.60E-04 1.98E-03 U AP 08 290255007 9/21/2011 Ag-108m 5.22E-05 9.46E-05 3.23E-04 U AP 08 290255007 9/21/2011 Ag-i 10m 2.68E-05 1.56E-04 5.27E-04 U AP 08 290255007 9/21/2011 Ba-140 6.87E-02 8.18E-02 0.OOE+00 UI AP 08 290255007 9/21/2011 Be-7 1.42E-01 1.21E-02 1.20E-02 AP 08 290255007 9/21/2011 Ce-141 -1.66E-03 1.65E-03 4.83E-03 U AP 08 290255007 9/21/2011 Ce-144 9.8 1E-04 7.28E-04 2.40E-03 U AP 08 290255007 9/21/2011 Co-57 1.92E-04 1.09E-04 3.54E-04 U 156

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP AP AP 08 08 08 290255007 290255007 290255007 9/21/2011 9/21/2011 9/21/2011 Co-58 Co-60 Cr-51 2.76E-04 4.61E-05

-4.30E-03 3.68E-04 1.51E-04 1.40E-02 1.26E-03 5.03E-04 4.42E-02 U

U U

I AP 08 290255007 9/21/2011 Cs-134 8.63E-05 1.58E-04 5.41E-04 U AP 08 290255007 9/21/2011 Cs-137 -8.42E-05 1.36E-04 4.29E-04 U AP 08 290255007 9/21/2011 Fe-59 -9.76E-04 1.58E-03 4.89E-03 U AP 08 290255007 9/21/2011 1-131 -9.34E-01 1.56E+00 0.OOE+00 U AP AP AP 08 08 08 290255007 290255007 290255007 9/21/2011 9/21/2011 9/21/2011 La-140 Mn-54 Nb-95 6.87E-02

-1.91E-04 6.09E-04 8.17E-02 1.46E-04 4.07E-04 0.OOE+00 3.85E-04 1.39E-03 UI U

U I

AP 08 290255007 9/21/2011 Ru-103 -5.07E-04 7.03E-04 2.14E-03 U AP 08 290255007 9/21/2011 Ru-106 -6.17E-04 1.55E-03 5.05E-03 U AP 08 290255007 9/21/2011 Sb-124 1.64E-03 1.26E-03 4.58E-03 U AP AP AP 08 08 08 290255007 290255007 290255007 9/21/2011 9/21/2011 9/21/2011 Sb-125 Se-75 Th-228

-1.38E-05

-4.93E-05 1.86E-04 3.19E-04 2.83E-04 2.35E-04 1.06E-03 9.19E-04 7.94E-04 U

U U

3 AP 08 290255007 9/21/2011 Zn-65 1.95E-04 4.23E-04 1.45E-03 U AP AP AP 08 08 08 290255007 287586007 288558007 9/21/2011 10/5/2011 10/19/2011 Zr-95 BETA BETA

-6.15E-05 2.45E-02 3.57E-02 6.10E-04 1.28E-03 1.53E-03 1.99E-03 6.33E-04 5.57E-04 U

I AP AP AP 08 08 08 289564007 290711007 291292007 11/2/2011 11/16/2011 11/30/2011 BETA BETA BETA 1.89E-02 4.03E-02 4.23E-02 1.12E-03 1.64E-03 1.74E-03 9.35E-04 9.39E-04 6.54E-04 I

AP AP AP 08 08 08 292257007 293075007 295624007 12/14/2011 12/28/2011 12/28/2011 BETA BETA Ac-228 3.21E-02 3.30E-02 9.07E-04 1.50E-03 1.53E-03 4.88E-04 7.06E-04 7.14E-04 1.65E-03 U 3

AP 08 295624007 12/28/2011 Ag-108m -2.53E-05 7.56E-05 2.50E-04 U AP 08 295624007 12/28/2011 Ag-ll0m 1.O0E-04 1.23E-04 4.16E-04 U AP 08 295624007 12/28/2011 Ba-140 2.20E-02 2.26E-02 7.95E-02 U AP 08 295624007 12/28/2011 Be-7 1.07E-01 8.67E-03 8.11 E-03 AP 08 295624007 12/28/2011 Ce-141 1.OIE-03 7.60E-04 2.43E-03 U AP 08 295624007 12/28/2011 Ce-144 -5.22E-04 5.59E-04 1.68E-03 U AP 08 295624007 12/28/2011 Co-57 -4.17E-05 6.93E-05 2.15E-04 U AP 08 295624007 12/28/2011 Co-58 6.79E-05 1.90E-04 6.57E-04 U AP 08 295624007 12/28/2011 Co-60 4.19E-05 1.11E-04 3.85E-04 U AP 08 295624007 12/28/2011 Cr-51 4.35E-03 5.89E-03 1.97E-02 U AP 08 295624007 12/28/2011 Cs-134 3.32E-05 1.08E-04 3.58E-04 U AP AP AP 08 08 08 295624007 295624007 295624007 12/28/2011 12/28/2011 12/28/2011 Cs-137 Fe-59 1-131 5.11 E-05 5.77E-04 1.77E-01 1.03E-04 7.78E-04 2.55E-01 3.45E-04 2.69E-03 0.OOE+00 U

U UI I

AP 08 295624007 12/28/2011 La-140 2.20E-02 2.26E-02 7.95E-02 U AP 08 295624007 12/28/2011 Mn-54 6.79E-05 1.16E-04 4.02E-04 U AP 08 295624007 12/28/2011 Nb-95 -2.12E-04 2.70E-04 8.05E-04 U AP 08 295624007 12/28/2011 Ru-103 -2.07E-04 3.88E-04 1.24E-03 U AP 08 295624007 12/28/2011 Ru-106 3.52E-04 9.04E-04 3.04E-03 U AP 08 295624007 12/28/2011 Sb-124 -7.OOE-04 6.22E-04 1.60E-03 U AP 08 295624007 12/28/2011 Sb-125 -1.34E-04 2.55E-04 8.33E-04 U AP 08 295624007 12/28/2011 Se-75 1.98E-04 1.88E-04 6.30E-04 U AP AP 08 08 295624007 295624007 12/28/2011 12/28/2011 Th-228 Zn-65 1.21E-04

-4.35E-05 1.59E-04 2.99E-04 4.76E-04 9.68E-04 U

U I

AP 08 295624007 12/28/2011 Zr-95 -1.55E-04 4.01E-04 1.25E-03 U i 157

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 09 270289008 1/11/2011 BETA 3.93E-02 1.51E-03 6.89E-04 AP 09 271270008 1/26/2011 BETA 2.48E-02 1.11 E-03 5.61E-04 AP 09 272216008 2/9/2011 BETA 3.76E-02 1.40E-03 5.78E-04 AP 09 272943008 2/23/2011 BETA 3.23E-02 1.30E-03 7.67E-04 AP 09 273849008 3/9/2011 BETA 2.84E-02 1.22E-03 7.74E-04 AP 09 274665008 3/23/2011 BETA 2.46E-02 1.16E-03 8.66E-04 AP 09 274937008 3/30/2011 BETA 5.52E-02 2.40E-03 1.54E-03 AP 09 277523008 3/30/2011 Ac-228 1.50E-03 6.94E-04 1.71E-03 U AP 09 277523008 3/30/2011 Ag-108m -5.46E-05 7.56E-05 2.40E-04 U AP 09 277523008 3/30/2011 Ag-110m -2.01E-04 1.20E-04 3.32E-04 U AP 09 277523008 3/30/2011 Ba-140 1.65E-02 1.63E-02 5.76E-02 U AP 09 277523008 3/30/2011 Be-7 1.08E-01 7.86E-03 6.70E-03 AP 09 277523008 3/30/2011 Ce-141 -2.98E-04 7.44E-04 2.33E-03 U AP 09 277523008 3/30/2011 Ce-144 7.20E-04 5.60E-04 1.80E-03 U AP 09 277523008 3/30/2011 Co-57 4.07E-05 6.86E-05 2.25E-04 U AP 09 277523008 3/30/2011 Co-58 -9.3 1E-05 2.14E-04 6.78E-04 U AP 09 277523008 3/30/2011 Co-60 -4.38E-05 1.1 8E-04 3.71E-04 U AP 09 277523008 3/30/2011 Cr-51 -2.43E-03 6.75E-03 2.14E-02 U AP 09 277523008 3/30/2011 Cs-134 3.49E-04 1.60E-04 5.05E-04 U AP 09 277523008 3/30/2011 Cs-137 1.28E-04 1.09E-04 3.69E-04 U AP 09 277523008 3/30/2011 Fe-59 -7.65E-04 7.68E-04 2.29E-03 U AP 09 277523008 3/30/2011 1-131 2.84E-01 2.69E-01 0.OOE+00 U' AP 09 277523008 3/30/2011 La-140 1.65E-02 1.63E-02 5.76E-02 U AP 09 277523008 3/30/2011 Mn-54 6.73E-05 1.29E-04 4.29E-04 U AP 09 277523008 3/30/2011 Nb-95 1.84E-04 2.58E-04 8.69E-04 U AP 09 277523008 3/30/2011 Ru-103 -4.77E-04 4.15E-04 1.23E-03 U AP 09 277523008 3/30/2011 Ru-106 2.3 1E-05 9.2 1E-04 3.1OE-03 U AP 09 277523008 3/30/2011 Sb-124 2.62E-03 9.28E-04 2.96E-03 U AP 09 277523008 3/30/2011 Sb-125 -5.55E-04 2.69E-04 6.97E-04 U AP 09 277523008 3/30/2011 Se-75 1.13E-04 1.55E-04 5.17E-04 U AP 09 277523008 3/30/2011 Th-228 2.88E-04 2.44E-04 5.74E-04 U AP 09 277523008 3/30/2011 Zn-65 -3.91E-04 3.02E-04 8.67E-04 U AP 09 277523008 3/30/2011 Zr-95 3.49E-05 4.11E-04 1.36E-03 U AP 09 275574008 4/6/2011 BETA 6.87E-02 2.72E-03 1.31E-03 AP 09 276545008 4/20/2011 BETA 4.12E-02 1.5 1E-03 6.77E-04 AP 09 277483008 5/3/2011 BETA 2.04E-02 1.12E-03 8.39E-04 AP 09 278643008 5/18/2011 BETA 1.34E-02 8.93E-04 8.20E-04 AP 09 279338008 6/1/2011 BETA 3.24E-02 1.37E-03 7.29E-04 AP 09 280318008 6/15/2011 BETA 1.93E-02 9.33E-04 6.60E-04 AP 09 281129008 6/29/2011 BETA 1.76E-02 9.14E-04 6.5 1E-04 AP 09 284171008 6/29/2011 Ac-228 5.5 1E-04 7.38E-04 2.64E-03 U AP 09 284171008 6/29/2011 Ag-108m -8.21E-05 1.22E-04 3.72E-04 U AP 09 284171008 6/29/2011 Ag-I 10m 4.16E-05 1.81E-04 5.48E-04 U AP 09 284171008 6/29/2011 Ba-140 3.69E-02 6.70E-02 0.OOE+00 UI AP 09 284171008 6/29/2011 Be-7 9.58E-02 1.32E-02 1.55E-02 AP 09 284171008 6/29/2011 Ce-I141 -6.61 E-04 1.45E-03 4.47E-03 U AP 09 284171008 6/29/2011 Ce-144 1.46E-03 9.39E-04 3.09E-03 U AP 09 284171008 6/29/2011 Co-57 -1.09E-04 1.16E-04 3.53E-04 U AP 09 284171008 6/29/2011 Co-58 -6.99E-04 4.04E-04 9. 1OE-04 U AP 09 284171008 6/29/2011 Co-60 -2.04E-04 1.58E-04 3.63E-04 U AP 09 284171008 6/29/2011 Cr-51 -4.91 E-03 1.43E-02 4.65E-02 U 158

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 09 284171008 6/29/2011 Cs-134 1.96E-03 5.79E-04 1.31E-03 UI I AP 09 284171008 6/29/2011 Cs-137 1.23E-03 2.27E-04 5.14E-04 M AP 09 284171008 6/29/2011 Fe-59 -9.04E-04 1.04E-03 2.60E-03 U AP 09 284171008 6/29/2011 1-131 -7.94E-01 9.62E-01 0.00E+00 U AP 09 284171008 6/29/2011 La-140 3.69E-02 6.70E-02 0.OOE+00 UI AP 09 284171008 6/29/2011 Mn-54 -1.22E-04 1.61E-04 4.68E-04 U AP 09 284171008 6/29/2011 Nb-95 -9.32E-05 3.94E-04 1.27E-03 U AP 09 284171008 6/29/2011 Ru-103 -9.79E-04 7.75E-04 2.06E-03 U AP 09 284171008 6/29/2011 Ru-106 1.54E-03 1.52E-03 5.43E-03 U AP 09 284171008 6/29/2011 Sb-124 1.47E-03 1.43E-03 5.29E-03 U AP 09 284171008 6/29/2011 Sb-125 4.95E-04 4.32E-04 1.49E-03 U AP 09 284171008 6/29/2011 Se-75 -1.83E-04 3.OOE-04 9.69E-04 U AP 09 284171008 6/29/2011 Th-228 -5.03E-06 2.34E-04 7.90E-04 U AP 09 284171008 6/29/2011 Zn-65 -2.38E-04 4.74E-04 1.41E-03 U AP 09 284171008 6/29/2011 Zr-95 -5.94E-04 7.12E-04 2.09E-03 U AP 09 282335008 7/13/2011 BETA 2.79E-02 1.14E-03 6.96E-04 AP 09 283010008 7/27/2011 BETA 3.32E-02 1.42E-03 9.12E-04 AP 09 284042008 8/10/2011 BETA 2.51E-02 1.23E-03 9.04E-04 AP 09 284899008 8/24/2011 BETA 2.99E-02 1.35E-03 8.38E-04 AP 09 285758008 9/7/2011 BETA 3.05E-02 1.32E-03 6.73E-04 AP 09 285900001 9/13/2011 BETA 2.30E-02 1.79E-03 1.56E-03 AP 09 286566008 9/21/2011 BETA 3.55E-02 2.03E-03 1.34E-03 AP 09 290255008 9/21/2011 Ac-228 -2.52E-04 5.26E-04 1.58E-03 U AP 09 290255008 9/21/2011 Ag-108m 1.45E-05 1.18E-04 3.85E-04 UI AP 09 290255008 9/21/2011 Ag-108m 1.28E-04 1.75E-04 6.1OE-04 U AP 09 290255008 9/21/2011 Ba-140 2.47E-02 8.12E-02 0.OOE+00 UI AP 09 290255008 9/21/2011 Be-7 9.88E-02 1.39E-02 1.38E-02 AP 09 290255008 9/21/2011 Ce-141 2.33E-03 1.71E-03 5.64E-03 U AP 09 290255008 9/21/2011 Ce-144 -4.55E-04 7.57E-04 2.45E-03 U AP 09 290255008 9/21/2011 Co-57 1.43E-04 1.02E-04 3.49E-04 U AP 09 290255008 9/21/2011 Co-58 -6.26E-05 3.43E-04 1.1 IE-03 U AP 09 290255008 9/21/2011 Co-60 9.82E-06 1.38E-04 4.64E-04 U AP 09 290255008 9/21/2011 Cr-51 -9.29E-03 1.66E-02 5.19E-02 U AP 09 290255008 9/21/2011 Cs-134 8.67E-05 1.98E-04 6.77E-04 U AP 09 290255008 9/21/2011 Cs-137 2.32E-05 1.43E-04 4.84E-04 U AP 09 290255008 9/21/2011 Fe-59 -1.42E-04 1.37E-03 4.38E-03 U AP 09 290255008 9/21/2011 1-131 -1.36E+00 1.92E+00 0.OOE+00 U AP 09 290255008 9/21/2011 La-140 2.47E-02 8.12E-02 0.OOE+00 UI AP 09 290255008 9/21/2011 Mn-54 1.08E-04 1.69E-04 5.85E-04 U AP 09 290255008 9/21/2011 Nb-95 3.37E-06 3.86E-04 1.28E-03 U AP 09 290255008 9/21/2011 Ru-103 1.IOE-03 8.60E-04 2.93E-03 U AP 09 290255008 9/21/2011 Ru-106 9.20E-04 1.56E-03 5.41E-03 U AP 09 290255008 9/21/2011 Sb-124 4.55E-04 7.26E-04 2.76E-03 U AP 09 290255008 9/21/2011 Sb-125 8.43E-05 3.92E-04 1.29E-03 U AP 09 290255008 9/21/2011 Se-75 3.57E-04 2.71E-04 9.21E-04 U AP 09 290255008 9/21/2011 Th-228 5.OOE-04 2.81E-04 8.76E-04 U AP 09 290255008 9/21/2011 Zn-65 -2.48E-04 4.09E-04 1.21E-03 U AP 09 290255008 9/21/2011 Zr-95 -4.21E-04 6.60E-04 2.OOE-03 U AP 09 287586008 10/5/2011 BETA 2.56E-02 1.33E-03 6.52E-04 AP 09 288558008 10/19/2011 BETA 3.98E-02 1.66E-03 5.87E-04 AP 09 289564008 11/2/2011 BETA 2.05E-02 1.22E-03 1.02E-03 159

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

AP 09 290711008 11/16/2011 BETA 4.40E-02 1.78E-03 1.01E-03 AP 09 291292008 11/30/2011 BETA 4.03E-02 1.75E-03 7.04E-04 AP 09 292257008 12/14/2011 BETA 3.40E-02 1.60E-03 7.59E-04 AP 09 293075008 12/28/2011 BETA 3.50E-02 1.63E-03 7.61E-04 AP 09 295624008 12/28/2011 Ac-228 9.98E-04 5.68E-04 1.87E-03 U AP 09 295624008 12/28/2011 Ag-108m -6.61E-06 9.34E-05 3.06E-04 U AP 09 295624008 12/28/2011 Ag-i 10m -6.01E-05 1.36E-04 4.29E-04 U AP 09 295624008 12/28/2011 Ba-140 1.30E-02 2. 1OE-02 7.23E-02 U AP 09 295624008 12/28/2011 Be-7 1.07E-01 8.87E-03 8.83E-03 AP 09 295624008 12/28/2011 Ce-141 7.02E-04 8.84E-04 2.97E-03 U AP 09 295624008 12/28/2011 Ce-144 1.81E-04 6.55E-04 2.20E-03 U AP 09 295624008 12/28/2011 Co-57 6.83E-05 8.87E-05 2.98E-04 U AP 09 295624008 12/28/2011 Co-58 1.66E-04 2.55E-04 8.52E-04 U AP 09 295624008 12/28/2011 Co-60 -2.53E-05 1.11 E-04 3.59E-04 U AP 09 295624008 12/28/2011 Cr-51 5.84E-03 8.67E-03 2.90E-02 U AP 09 295624008 12/28/2011 Cs-134 -9.60E-05 1.62E-04 5.04E-04 U AP 09 295624008 12/28/2011 Cs-"137 2.5 1E-05 1.20E-04 3.94E-04 U AP 09 295624008 12/28/2011 Fe-59 -4.05E-04 8.95E-04 2.85E-03 U AP 09 295624008 12/28/2011 1-131 1.52E-01 3.07E-01 0.OOE+00 UI AP 09 295624008 12/28/2011 La- 140 1.30E-02 2.1OE-02 7.23E-02 U AP 09 295624008 12/28/2011 Mn-54 6.52E-05 1.38E-04 4.71E-04 U AP 09 295624008 12/28/2011 Nb-95 1.93E-04 2.83E-04 9.48E-04 U AP 09 295624008 12/28/2011 Ru-103 -5.38E-05 5.7 1E-04 1.86E-03 U AP 09 295624008 12/28/2011 Ru-106 -1.31E-03 1.36E-03 4.12E-03 U AP 09 295624008 12/28/2011 Sb-124 -1.33E-03 8.25E-04 1.98E-03 U AP 09 295624008 12/28/2011 Sb-125 4.48E-07 3.08E-04 1.01E-03 U AP 09 295624008 12/28/2011 Se-75 4.57E-05 2.25E-04 7.50E-04 U AP 09 295624008 12/28/2011 Th-228 2.12E-04 2.15E-04 6.98E-04 U AP 09 295624008 12/28/2011 Zn-65 -1.57E-04 3.16E-04 1.OOE-03 U AP 09 295624008 12/28/2011 Zr-95 2.36E-04 5.19E-04 1.72E-03 U 160

Seabrook REMP Summary of 2011 Data I

SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

CF 01 270289009 1/11/2011 1-131 -3.69E-03 4.03E-03 1.13E-02 U CF 01 271270009 1/26/2011 1-131 -3.52E-03 2.21E-03 5.51E-03 U CF 01 272216009 2/9/2011 1-131 -6.33E-03 5.38E-03 1.42E-02 U CF 01 272943009 2/23/2011 1-131 -5.51E-03 3.70E-03 1.O1E-02 U CF 01 273849009 3/9/2011 1-131 -4.68E-03 2.87E-03 6.47E-03 U CF 01 274665009 3/23/2011 1-131 2.29E-02 6.88E-03 9.1OE-03 UI CF 01 274937009 3/30/2011 1-131 6.12E-02 1.82E-02 3.26E-02 M CF 01 275574009 4/6/2011 1-131 9.64E-02 1.50E-02 1.76E-02 CF 01 276545009 4/20/2011 1-131 2.75E-02 5.85E-03 1.06E-02 M CF 01 277483009 5/3/2011 1-131 -1.37E-02 1.06E-02 2.99E-02 U CF 01 278643009 5/18/2011 1-131 5.92E-03 3.73E-03 1.50E-02 U CF 01 279338009 6/1/2011 1-131 8.47E-03 5.81E-03 2.13E-02 U CF 01 280318009 6/15/2011 1-131 8.03E-04 2.17E-03 7.54E-03 U CF 01 281129009 6/29/2011 1-131 1.83E-03 6.66E-03 2.29E-02 U CF 01 282335009 7/13/2011 1-131 2.OOE-03 4.42E-03 1.53E-02 U CF 01 283010009 7/27/2011 1-131 2.15E-03 3.84E-03 1.35E-02 U CF 01 284042009 8/10/2011 1-131 2.62E-04 2.41E-03 8.03E-03 U CF 01 284899009 8/24/2011 1-131 1.24E-03 2.67E-03 8.91E-03 U CF 01 285758009 9/7/2011 1-131 3.73E-03 4.60E-03 1.62E-02 U CF 01 286566009 9/21/2011 1-131 6.61E-03 2.89E-03 9.73E-03 U CF 01 287586009 10/5/2011 1-131 -1.67E-03 2.91E-03 9.08E-03 U CF 01 288558009 10/19/2011 1-131 1.18E-03 2.65E-03 9.1OE-03 U CF 01 289564009 11/2/2011 1-131 4.31E-03 4.50E-03 1.57E-02 U CF 01 290711009 11/16/2011 1-131 2.37E-03 5.01E-03 1.72E-02 U CF 01 291292009 11/30/2011 1-131 -7.12E-04 1.87E-03 5.90E-03 U CF 01 292257009 12/14/2011 1-131 -2.01E-03 5.78E-03 1.81E-02 U CF 01 293075009 12/28/2011 1-131 1.02E-03 3.88E-03 1.29E-02 U CF 02 270289010 1/11/2011 1-131 1.58E-03 2.74E-03 9.96E-03 U CF 02 271270010 1/26/2011 1-131 -4.70E-03 3.03E-03 8.54E-03 U CF 02 272216010 2/9/2011 1-131 4.65E-05 5.22E-03 1.71E-02 U CF 02 272943010 2/23/2011 1-131 -1.49E-03 2.67E-03 8.33E-03 U CF 02 273849010 3/9/2011 1-131 -1.15E-03 2.51E-03 7.81E-03 U CF 02 274665010 3/23/2011 1-131 1.56E-02 4.74E-03 1.61E-02 U CF 02 274937010 3/30/2011 1-131 6.38E-02 1.05E-02 1.66E-02 M CF 02 275574010 4/6/2011 1-131 1.29E-01 1.57E-02 1.38E-02 CF 02 276545010 4/20/2011 1-131 4.17E-02 6.70E-03 9.62E-03 M CF 02 277483010 5/3/2011 1-131 4.63E-03 9.84E-03 3.35E-02 U CF 02 278643010 5/18/2011 1-131 -6.62E-03 7.85E-03 2.36E-02 U CF 02 279338010 6/1/2011 1-131 3.48E-03 4.84E-03 1.70E-02 U CF 02 280318010 6/15/2011 1-131 -1.44E-03 2.09E-03 6.33E-03 U CF CF CF 02 02 02 281129010 282335010 283010010 6/29/2011 7/13/2011 7/27/2011 1-131 1-131 1-131

-3.56E-03

-3.87E-03 2.04E-03 7.70E-03 3.87E-03 4.48E-03 2.35E-02 1.03E-02 1.55E-02 U

U U

I CF 02 284042010 8/10/2011 1-131 -2.56E-03 2.59E-03 7.76E-03 U CF 02 284899010 8/24/2011 1-131 5.59E-03 4.39E-03 1.50E-02 U CF 02 285758010 9/7/2011 1-131 4.07E-03 3.56E-03 1.25E-02 U CF 02 286566010 9/21/2011 1-131 5.45E-03 4.63E-03 1.59E-02 U CF 02 287586010 10/5/2011 1-131 7.97E-03 5.74E-03 2.01E-02 U CF 02 288558010 10/19/2011 1-131 -9.59E-04 3.95E-03 1.26E-02 U CF 02 289564010 11/2/2011 1-131 2.49E-04 2.49E-03 8.41E-03 U CF 02 290711010 11/16/2011 1-131 9.22E-05 4.94E-03 1.62E-02 U 161

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

CF 02 291292010 11/30/2011 1-131 -1.93E-03 3.60E-03 1.13E-02 U CF 02 292257010 12/14/2011 1-131 2.1OE-03 5.60E-03 1.96E-02 U CF 02 293075010 12/28/2011 1-131 -2.49E-03 4.96E-03 1.53E-02 U CF 03 270289011 1/11/2011 1-131 8.09E-03 4.30E-03 1.71E-02 U CF 03 271270011 1/26/2011 1-131 -5.88E-03 2.17E-02 6.94E-02 U CF 03 272216011 2/9/2011 1-131 -1.33E-03 6.09E-03 1.95E-02 U CF 03 272943011 2/23/2011 1-131 2.15E-03 3.23E-03 1.13E-02 U CF 03 273849011 3/9/2011 1-131 -2.36E-03 3.04E-03 8.86E-03 U CF 03 274665011 3/23/2011 1-131 1.83E-02 7.37E-03 2.58E-02 U CF 03 274937011 3/30/2011 1-131 3.87E-02 1.04E-02 2.91E-02 UI CF 03 275574011 4/6/2011 1-131 1.O1E-01 1.35E-02 9.64E-03 CF 03 276545011 4/20/2011 1-131 1.41E-02 9.42E-03 1.48E-02 U CF 03 277483011 5/3/2011 1-131 -9.73E-03 7.81E-03 2.24E-02 U CF 03 278643011 5/18/2011 1-131 -9.96E-04 4.24E-03 1.36E-02 U CF 03 279338011 6/1/2011 1-131 7.84E-03 4.44E-03 1.76E-02 U CF 03 280318011 6/15/2011 1-131 4.69E-04 2.19E-03 7.48E-03 U CF 03 281129011 6/29/2011 1-131 9.01E-03 8.12E-03 2.96E-02 U CF 03 282335011 7/13/2011 1-131 -4.34E-04 4.81E-03 1.61E-02 U CF 03 283010011 7/27/2011 1-131 -3.53E-03 4.05E-03 1.13E-02 U CF 03 284042011 8/10/2011 1-131 -2.14E-03 2.85E-03 8.66E-03 U CF 03 284899011 8/24/2011 1-131 -5.43E-03 3.1OE-03 8.OOE-03 U CF 03 285758011 9/7/2011 1-131 -8.66E-03 4.07E-03 6.66E-03 U CF 03 286566011 9/21/2011 1-131 2.35E-03 2.60E-03 8.91E-03 U CF 03 287586011 10/5/2011 1-131 2.35E-03 2.84E-03 9.89E-03 U CF 03 288558011 10/19/2011 1-131 3.61E-03 3.40E-03 1.18E-02 U CF 03 289564011 11/2/2011 1-131 -3.25E-03 4.55E-03 1.36E-02 U CF 03 290711011 11/16/2011 1-131 3.49E-03 5.68E-03 1.97E-02 U CF 03 291292011 11/30/2011 1-131 1.40E-03 2.01E-03 6.96E-03 U CF 03 292257011 12/14/2011 1-131 1.90E-03 7.38E-03 2.53E-02 U CF 03 293075011 12/28/2011 1-131 -6.08E-03 4.97E-03 1.34E-02 U CF 04 270289012 1/11/2011 1-131 -3.24E-03 4.03E-03 1.15E-02 U CF 04 271270012 1/26/2011 1-131 5.49E-03 2.76E-03 1.07E-02 U CF 04 272216012 2/9/2011 1-131 2.13E-03 4.07E-03 1.47E-02 U CF 04 272943012 2/23/2011 1-131 -2.64E-03 2.87E-03 8.03E-03 U CF 04 273849012 3/9/2011 1-131 -4.83E-04 3.06E-03 1.02E-02 U CF 04 274665012 3/23/2011 1-131 1.54E-02 7.07E-03 2.52E-02 U CF 04 274937012 3/30/2011 1-131 3.88E-02 1.1OE-02 2.07E-02 M CF 04 275574012 4/6/2011 1-131 8.47E-02 1.58E-02 2.14E-02 CF 04 276545012 4/20/2011 1-131 2.50E-02 4.15E-03 9.14E-03 M CF 04 277483012 5/3/2011 1-131 9.74E-03 8.71E-03 2.97E-02 U CF 04 278643012 5/18/2011 1-131 -1.34E-02 9.51E-03 2.19E-02 U CF 04 279338012 6/1/2011 1-131 4.95E-03 5.47E-03 2.05E-02 U CF 04 280318012 6/15/2011 1-131 -1.89E-03 2.57E-03 7.86E-03 U CF .04 281129012 6/29/2011 1-131 -1.95E-03 4.72E-03 1.41E-02 U CF 04 282335012 7/13/2011 1-131 8.27E-04 5.36E-03 1.83E-02 U CF 04 283010012 7/27/2011 1-131 -2.63E-03 4.01E-03 1.22E-02 U CF 04 284042012 8/10/2011 1-131 3.42E-03 4.15E-03 1.43E-02 U CF 04 284899012 8/24/2011 1-131 2.06E-03 2.55E-03 8.96E-03 U CF 04 285758012 9/7/2011 1-131 -2.20E-03 5.10E-03 1.58E-02 U CF 04 286566012 9/21/2011 1-131 2.65E-04 4.15E-03 1.41E-02 U CF 04 287586012 10/5/2011 1-131 -3.03E-03 5.07E-03 1.62E-02 U 162

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/m3)

STD.DEV.

(pCi/m3)

MDC (pCi/m3)

FLAGS I CF CF 04 04 288558012 289564012 10/19/2011 11/2/2011 1-131 1-131 2.16E-03 5.12E-03 2.83E-03 3.64E-03 9.78E-03 1.29E-02 U

U I

CF 04 290711012 11/16/2011 1-131 2.OOE-03 7.52E-03 2.58E-02 U CF CF 04 04 291292012 292257012 11/30/2011 12/14/2011 1-131 1-131 2.42E-04 4.78E-03 2.5 1E-03 4.29E-03 8.26E-03 1.59E-02 U

U I

CF 04 293075012 12/28/2011 1-131 -4.18E-04 7.37E-03 2.42E-02 U CF CF CF 05 05 05 270289013 271270013 272216013 1/11/2011 1/26/2011 2/9/2011 1-131 1-131 1-131 7.30E-03

-9.40E-04 1.27E-03 4.OOE-03 2.20E-03 4.35E-03 1.53E-02 6.79E-03 1.49E-02 U

U U

I CF CF CF 05 05 05 272943013 273849013 274665013 2/23/2011 3/9/2011 3/23/2011 1-131 1-131 1-131 4.61E-03

-4.69E-03 7.85E-03 2.88E-03 3.OOE-03 9.29E-03 1.05E-02

7. 1OE-03 3.2 1E-02 U

U U

I CF 05 274937013 3/30/2011 1-131 3.OOE-02 9.08E-03 1.35E-02 M CF CF 05 05 275574013 276545013 4/6/2011 4/20/2011 1-131 1-131 9.19E-02 2.69E-02 1.46E-02 4.42E-03 2.44E-02 7.32E-03 M I

CF 05 277483013 5/3/2011 1-131 3.39E-03 8.88E-03 3.03E-02 U CF CF CF 05 05 05 278643013 279338013 280318013 5/18/2011 6/1/2011 6/15/2011 1-131 1-131 1-131 5.34E-04

-1.07E-03 3.74E-03 3.58E-03 1.02E-02 2.33E-03 1.25E-02 3.41E-02 8.05E-03 U

U U

I 1.39E-02 U CF CF CF 05 05 05 281129013 282335013 283010013 6/29/2011 7/13/2011 7/27/2011 1-131 1-131 1-131

-1.01E-02

-2.18E-03 3.6 1E-03 6.67E-03 3.66E-03 3.i1E-03 9.54E-03 1.18E-02 U

U I

CF 05 284042013 8/10/2011 1-131 -1. 1OE-03 2.19E-03 7.01E-03 U CF CF 05 05 284899013 285758013 8/24/2011 9/7/2011 1-131 1-131

-9.21E-05

-1.91E-03 2.65E-03 4.21 E-03 8.70E-03 1.30E-02 I CF 05 286566013 9/21/2011 1-131 3.83E-04 2.14E-03 7.15E-03 CF CF CF 05 05 05 287586013 288558013 289564013 10/5/2011 10/19/2011 11/2/2011 1-131 1-131 1-131

-4.57E-03

-2.16E-03 5.02E-03 2.89E-03 2.32E-03 3.98E-03 7.42E-03 6.99E-03 1.40E-02 I

1.61E-02 CF CF CF 05 05 05 290711013 291292013 292257013 11/16/2011 11/30/2011 12/14/2011 1-131 1-131 1-131

-1.70E-03 1.36E-03

-5.44E-04 4.93E-03 1.88E-03 4.49E-03 6.42E-03 1.48E-02 I

CF 05 293075013 12/28/2011 1-131 3.13E-03 3.89E-03 1.36E-02 CF CF 07 07 270289014 271270014 1/11/2011 1/26/2011 1-131 1-131

-4.44E-03 7.9 1E-03 5.20E-03 2.72E-03 1.48E-02 1.06E-02 I CF 07 272216014 2/9/2011 1-131 4.4 1E-03 4.20E-03 1.58E-02 CF CF CF 07 07 07 272943014 273849014 274665014 2/23/2011 3/9/2011 3/23/2011 1-131 1-131 1-131

-1.37E-03

-1.35E-03 1.21E-02 3.86E-03

3. 1OE-03 7.7 1E-03 1.24E-02 9.69E-03 1.82E-02 I

3.93E-02 1.01E-02 1.87E-02 CF CF CF 07 07 07 274937014 275574014 276545014 3/30/2011 4/6/2011 4/20/2011 1-131 1-131 1-131 6.13E-02 2.05E-02 1.11E-02 8.43E-03 1.36E-02 1.45E-02 I

CF 07 277483014 5/3/2011 1-131 3.08E-03 5.50E-03 1.88E-02 CF CF 07 07 278643014 279338014 5/18/2011 6/1/2011 1-131 1-131 8.55E-03

-1.14E-03 8.5 1E-03 4.54E-03 3.06E-02 1.45E-02 I CF 07 280318014 6/15/2011 1-131 -4.11E-03 2.19E-03 5.53E-03 CF CF CF 07 07 07 281129014 282335014 283010014 6/29/2011 7/13/2011 7/27/2011 1-131 1-131 1-131

-2.48E-04 3.10E-03

-2.33E-03 5.92E-03 4.27E-03 3.60E-03 1.96E-02 1.52E-02 1.00E-02 I

2.44E-03 8.04E-03 CF CF 07 07 284042014 284899014 8/10/2011 8/24/2011 1-131 1-131

-4.86E-04 6.63E-04 4.17E-03 1.39E-02 I 163 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

CF 07 285758014 9/7/2011 1-131 6.93E-03 4.61E-03 1.65E-02 U CF 07 286566014 9/21/2011 1-131 -1. 12E-03 3.05E-03 9.99E-03 u CF 07 287586014 10/5/2011 1-131 2.09E-03 3.23E-03 1.15E-02 u CF 07 288558014 10/19/2011 1-131 8.87E-04 2. 1OE-03 7.11E-03 U CF 07 289564014 11/2/2011 1-131 2.04E-03 2.7 1E-03 9.37E-03 U CF 07 290711014 11/16/2011 1-131 7.43E-03 6.67E-03 2.39E-02 u CF 07 291292014 11/30/2011 1-131 9.22E-04 2.63E-03 8.62E-03 U CF 07 292257014 12/14/2011 1-131 -9.20E-03 5.22E-03 1.12E-02 U CF 07 293075014 12/28/2011 1-131 -5.80E-03 4.88E-03 1.30E-02 u CF 08 270289015 1/11/2011 1-131 9.06E-04 3.30E-03 1.14E-02 u CF 08 271270015 1/26/2011 1-131 -1.1 1E-03 2.6 1E-03 8.52E-03 u CF 08 272216015 2/9/2011 1-131 3.20E-03 3.72E-03 1.41E-02 u CF 08 272943015 2/23/2011 1-131 3.42E-04 3.19E-03 1.08E-02 u CF 08 273849015 3/9/2011 1-131 1.25E-03 3.67E-03 1.23E-02 U CF 08 274665015 3/23/2011 1-131 2.39E-02 5.88E-03 1.43E-02 UI CF 08 274937015 3/30/2011 1-131 4.24E-02 9.53E-03 2.33E-02 M CF 08 275574015 4/6/2011 1-131 1.12E-01 1.65E-02 9.68E-03 CF 08 276545015 4/20/2011 1-131 2.70E-02 5.85E-03 1.13E-02 M CF 08 277483015 5/3/2011 1-131 8.91E-03 5.67E-03 1.92E-02 U CF 08 278643015 5/18/2011 1-131 -3.71E-03 5.11E-03 1.54E-02 U CF 08 279338015 6/1/2011 1-131 -2.77E-03 2.34E-03 4.24E-03 U CF 08 280318015 6/15/2011 1-131 2.45E-03 3.59E-03 1.23E-02 U CF 08 281129015 6/29/2011 1-131 6.35E-03 5.83E-03 2.19E-02 U CF 08 282335015 7/13/2011 1-131 1.76E-03 3.93E-03 1.40E-02 U CF 08 283010015 7/27/2011 1-131 1.15E-03 3.48E-03 1.20E-02 U CF 08 284042015 8/10/2011 1-131 -6.60E-03 2.94E-03 6.35E-03 U CF 08 284899015 8/24/2011 1-131 1.09E-02 5.08E-03 1.64E-02 U CF 08 285758015 9/7/2011 1-131 3.45E-03 3.02E-03 1.08E-02 U CF 08 286566015 9/21/2011 1-131 -1.29E-03 2.96E-03 9.33E-03 U CF 08 287586015 10/5/2011 1-131 1.44E-03 3.I1E-03 1.09E-02 U CF 08 .288558015 10/19/20 11 1-131 2.68E-03 2.71E-03 9.88E-03 U CF 08 289564015 11/2/2011 1-131 -4.33E-03 2.58E-03 5.90E-03 U CF 08 290711015 11/16/2011 1-131 -3.79E-03 3.95E-03 1.18E-02 U CF 08 291292015 11/30/2011 1-131 4.65E-04 1.96E-03 6.77E-03 U CF 08 292257015 12/14/2011 1-131 2.54E-03 4.02E-03 1.39E-02 U CF 08 293075015 12/28/2011 1-131 5.49E-03 6.38E-03 2.24E-02 U CF 09 270289016 1/11/2011 1-131 6.26E-03 4.16E-03 1.71E-02 U CF 09 271270016 1/26/2011 1-131 1.06E-03 3.70E-03 1.23E-02 U CF 09 272216016 2/9/2011 1-131 3.3 1E-03 4.73E-03 1.69E-02 U CF 09 272943016 2/23/2011 1-131 -1.23E-03 3.56E-03 1.11E-02 U CF 09 273849016 3/9/2011 1-131 -1.40E-03 3.17E-03 1.02E-02 U CF 09 274665016 3/23/2011 1-131 2.47E-02 6.88E-03 1.13E-02 UI CF 09 274937016 3/30/2011 1-131 2.68E-02 8.73E-03 1.52E-02 UI CF 09 275574016 4/6/2011 1-131 1.07E-01 1.39E-02 1.36E-02 CF 09 276545016 4/20/2011 1-131 2.57E-02 6.5 1E-03 9.03E-03 M CF 09 277483016 5/3/2011 1-131 7.50E-03 5.39E-03 1.85E-02 U CF 09 278643016 5/18/2011 1-131 -3.64E-03 8.99E-03 2.76E-02 U CF 09 279338016 6/1/2011 1-131 -3.35E-04 4.37E-03 1.46E-02 U CF 09 280318016 6/15/2011 1-131 -1.65E-03 1.95E-03 6.OOE-03 U CF 09 281129016 6/29/2011 1-131 -3.54E-03 5.25E-03 1.49E-02 U CF 09 282335016 7/13/2011 1-131 2.45E-03 5.39E-03 1.90E-02 U 164

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/m3)

STD.DEV.

(pCi/m3)

MDC (pCi/m3)

FLAGS I CF CF 09 09 283010016 284042016 7/27/2011 8/10/2011 1-131 1-131 1.19E-03 1.82E-03 3.35E-03 2.68E-03 1.16E-02 9.04E-03 U

U I

CF 09 284899016 8/24/2011 1-131 1.75E-03 3.07E-03 1.06E-02 U CF CF 09 09 285758016 285900002 9/7/2011 9/13/2011 1-131 1-131

-1.92E-03

-2.72E-04 3.67E-03 7.33E-03 1.15E-02 2.47E-02 U

U I

CF 09 286566016 9/21/2011 1-131 -9.78E-03 5.07E-03 1.19E-02 U CF CF CF 09 09 09 287586016 288558016 289564016 10/5/2011 10/19/2011 11/2/2011 1-131 1-131 1-131

-2.78E-03

-1.03E-03 5.3 1E-03 2.23E-03 2.53E-03 3.13E-03 6.28E-03 8.OOE-03 1.12E-02 U

U U

I CF CF CF 09 09 09 290711016 291292016 292257016 11/16/2011 11/30/2011 12/14/2011 1-131 1-131 1-131

-6.45E-03 3.87E-03 8.66E-03 5.12E-03 2.53E-03 5.50E-03 1.37E-02 8.89E-03 1.92E-02 U

U U

I CF 09 293075016 12/28/2011 1-131 -1.73E-03 3.58E-03 1.15E-02 U I

I I

U I

I I

I 165 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

FH 03 286778001 9/26/2011 Ac-228 -5.77E+00 3.24E+01 9.99E+01 FH 03 286778001 9/26/2011 Ag-108m -1.42E+00 6.22E+00 1.95E+01 FH 03 286778001 9/26/2011 Ag-i 10m 2.30E+00 7.27E+00 2.45E+01 FH 03 286778001 9/26/2011 Ba-140 -4.82E+00 1.22E+01 3.69E+01 FH 03 286778001 9/26/2011 Be-7 -3.26E+01 6. 1OE+01 1.97E+02 FH 03 286778001 9/26/2011 Bi-214 1.51E+00 1.73E+01 5.84E+01 FH 03 286778001 9/26/2011 Ce-141 1.99E+01 1.23E+01 4.09E+01 FH 03 286778001 9/26/2011 Ce-144 -2.28E+01 4.14E+01 1.36E+02 FH 03 286778001 9/26/2011 Co-57 6.48E-0 1 4.65E+00 1.59E+01 FH 03 286778001 9/26/2011 Co-58 6.68E+00 8.63E+00 2.92E+01 FH 03 286778001 9/26/2011 Co-60 -1.71E+01 7.65E+00 1.17E+01 FH 03 286778001 9/26/2011 Cr-51 -5.69E+01 6.93E+01 2.11E+02 FH 03 286778001 9/26/2011 Cs-134 1.23E+01 9.50E+00 3.26E+01 FH 03 286778001 9/26/2011 Cs-137 -3.26E+00 7.17E+00 2.27E+01 FH 03 286778001 9/26/2011 Fe-59 9.OOE+00 1.52E+01 5.30E+01 FH 03 286778001 9/26/2011 1-131 -1. 14E+01 1.61E+01 4.90E+01 FH 03 286778001 9/26/2011 K-40 2.74E+03 2.8 1E+02 2.17E+02 FH 03 286778001 9/26/2011 La- 140 -4.82E+00 1.22E+01 3.69E+01 FH 03 286778001 9/26/2011 Mn-54 5.57E+00 7.94E+00 2.68E+01 FH 03 286778001 9/26/2011 Nb-95 -1.54E+01 9.74E+00 2.5 1E+01 FH 03 286778001 9/26/2011 Pb-212 -4.13E-01 1.39E+01 4.85E+01 FH 03 286778001 9/26/2011 Pb-214 2.27E+01 1.91E+01 6.02E+01 FH 03 286778001 9/26/2011 Ra-226 1.51E+00 1.73E+01 5.84E+01 FH 03 286778001 9/26/2011 Ru-103 1.62E+01 9.12E+00 3.06E+01 FH 03 286778001 9/26/2011 Ru-106 -2.42E+01 7.56E+01 2.45E+02 FH 03 286778001 9/26/2011 Sb-124 1.21E+01 1.93E+01 6.67E+01 FH 03 286778001 9/26/2011 Sb-125 -1.04E+01 2.04E+01 6.07E+01 FH 03 286778001 9/26/2011 Se-75 -1.55E+01 9.52E+00 2.62E+01 FH 03 286778001 9/26/2011 Th-228 -4.13E-01 1.39E+01 4.85E+01 FH 03 286778001 9/26/2011 Th-230 1.51E+00 1.73E+01 5.84E+01 FH 03 286778001 9/26/2011 TI-208 -3.08E+00 9.20E+00 3.02E+01 FH 03 286778001 9/26/2011 Zn-65 3.54E+00 1.67E+01 5.64E+01 FH 03 286778001 9/26/2011 Zr-95 2.04E+00 1.28E+01 4.26E+01 FH 03 285107003 8/30/2011 Ac-228 1.92E+00 1.80E+01 2.54E+01 FH 03 285107003 8/30/2011 Ag-108m -2.70E-02 2.65E+00 4.35E+00 FH 03 285107003 8/30/2011 Ag-110m -1.50E+00 3.33E+00 5.36E+00 FH 03 285107003 8/30/2011 Ba-140 2.2 1E+00 1.11 E+01 1.92E+01 FH 03 285107003 8/30/2011 Be-7 4.50E+00 3.27E+01 5.38E+01 FH 03 285107003 8/30/2011 Bi-214 1.75E+00 1.43E+01 1.23E+01 FH 03 285107003 8/30/2011 Ce- 141 -6.72E-0 1 6.80E+00 1.1 1E+01 FH 03 285107003 8/30/2011 Ce-144 -1.00E+01 1.91E+01 2.98E+01 FH 03 285107003 8/30/2011 Co-57 -2.01E+00 2.49E+00 3.69E+00 FH 03 285107003 8/30/2011 Co-58 1.42E+00 3.92E+00 6.59E+00 FH 03 285107003 8/30/2011 Co-60 -7.45E-01 4.13E+00 6.77E+00 FH 03 285107003 8/30/2011 Cr-51 1.24E+01 4.32E+01 7.27E+01 FH 03 285107003 8/30/2011 Cs-134 -2.01E+00 4.27E+00 6.7 1E+00 FH 03 285107003 8/30/2011 Cs-137 6.1OE+00 4.44E+00 6.38E+00 FH 03 285107003 8/30/2011 Fe-59 3.65E+00 1.11 E+01 1.89E+01 FH 03 285107003 8/30/2011 1-131 6.32E+00 2.2 1E+01 3.70E+01 FH 03 285107003 8/30/2011 K-40 4.33E+03 4.54E+02 5.02E+01 FH 03 285107003 8/30/2011 La-140 2.2 1E+00 1.11 E+01 1.92E+01 166

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I FH FH 285107003 285107003 8/30/2011 8/30/2011 Mn-54 Nb-95 9.33E-01

-9.52E-01 3.40E+00 4.OOE+00 5.70E+00 6.53E+00 I

FH 285107003 8/30/2011 Pb-212 4.11E+00 1.06E+01 1.00E+01 FH FH 285107003 285107003 8/30/2011 8/30/2011 Pb-214 Ra-226

-2.41E+00 1.75E+00 8.34E+00 1.43E+01 1.15E+01 1.23E+01 I

FH 285107003 8/30/2011 Ru-103 -1.29E+00 4.2 1E+00 7.07E+00 FH FH FH 285107003 285107003 285107003 8/30/2011 8/30/2011 8/30/2011 Ru-106 Sb-124 Sb-125 4.75E+00

-1.83E+00 7.81 E-0 1 2.79E+01 7.54E+00 8.42E+00 4.77E+01 1.23E+01 1.39E+01 I

FH FH FH 285107003 285107003 285107003 8/30/2011 8/30/2011 8/30/2011 Se-75 Th-228 Th-230 4.35E+00 4.11E+00 1.75E+00 4.80E+00 1.06E+01 1.43E+01 7.67E+00 1.00E+01 1.23E+01 I

FH 285107003 8/30/2011 TI-208 -3.47E+00 4.65E+00 5.53E+00 FH FH 285107003 285107003 8/30/2011 8/30/2011 Zn-65 Zr-95 1.82E+00

-3.98E+00 9.13E+00 7.26E+00 1.56E+01 1.13E+01 I

FH 273217001 2/23/2011 Ac-228 -8.26E+00 1.98E+01 5.37E+01 FH FH FH 273217001 273217001 273217001 2/23/2011 2/23/2011 2/23/2011 Ag-108m Ag-110m Ba-140

-3.47E-01 6.65E+00

7. 1OE+00 2.99E+00 3.74E+00 1.54E+01 9.5 1E+00 1.20E+01 5.16E+01 I

FH 273217001 2/23/2011 1.78E+01 3.79E+01 1.29E+02 I

Be-7 FH 273217001 2/23/2011 Bi-214 -1. 19E+01 1.08E+01 2.66E+01 FH 273217001 2/23/2011 Ce-141 1.50E+01 7.72E+00 2.39E+01 FH 273217001 2/23/2011 Ce-144 -1.91E+00 1.69E+01 5.68E+01 FH FH 273217001 273217001 2/23/2011 2/23/2011 Co-57 Co-58

-4.81E-01 2.53E+00 2.1OE+00 4.33E+00 7.07E+00 1.43E+01 U FH 273217001 2/23/2011 Co-60 - 1.16E+00 4.15E+00 1.35E+01 FH FH FH 273217001 273217001 273217001 2/23/2011 2/23/2011 2/23/2011 Cr-51 Cs-134 Cs-137

-4.38E+01 6.88E+00

-4.58E+00 4.93E+01 4.64E+00 3.80E+00 1.53E+02 1.51E+01 1.15E+01 I

FH 273217001 2/23/2011 -1.37E+00 1.04E+01 3.46E+01 I

Fe-59 FH 273217001 2/23/2011 1-131 -2.25E+01 3.1OE+01 9.68E+01 FH 273217001 2/23/2011 K-40 2.75E+03 1.8]E+02 1.21E+02 FH 273217001 2/23/2011 La-140 7. 1OE+00 1.54E+01 5.16E+01 U FH FH 273217001 273217001 2/23/2011 2/23/2011 Mn-54 Nb-95

-1.54E+00 6.27E+00 1.06E+01 3.89E+00 4.64E+00 1.25E+01 1.52E+01 2.08E+01 U

U U

I FH 273217001 2/23/2011 Pb-212 8.95E+00 FH FH FH 273217001 273217001 273217001 2/23/2011 2/23/2011 2/23/2011 Pb-214 Ra-226 Ru-103

-1.87E+01

-1. 19E+01

-9.15E-01 1.40E+01 1.08E+01 4.84E+00 2.54E+01 2.66E+0 1 1.62E+01 U

U U

I FH 273217001 2/23/2011 Ru-106 -9.95E+01 4.07E+01 1.00E+02 U FH FH 273217001 273217001 2/23/2011 2/23/2011 Sb-124 Sb-125 1.78E+01 8.33E-01 1.04E+01 9.41 E+00 3.52E+01 3.02E+01 U

U I

FH 273217001 2/23/2011 Se-75 -1.27E-01 4.53E+00 1.48E+01 U FH FH 273217001 273217001 2/23/2011 2/23/2011 Th-228 Th-230 1.06E+01

-1. 19E+01 8.95E+00 1.07E+01 2.08E+01 2.66E+01 U

U I FH 273217001 2/23/2011 TI-208 -4.77E+00 6.01E+00 1.28E+01 U FH FH FH 273217001 273217001 279317001 2/23/2011 2/23/2011 5/25/2011 Zn-65 Zr-95 Ac-228

-2.91E+00 4.65E+00 1.75E+01 8.98E+00 7.72E+00 1.40E+01 2.96E+01 2.57E+01 4.68E+01 U

U U

I FH 279317001 5/25/2011 1.87E+00 2.17E+00 7.32E+00 U I

Ag-108m FH 279317001 5/25/2011 Ag-i 10m -6.36E+00 3.30E+00 8.66E+00 U 167 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

FH 03 279317001 5/25/2011 Ba-140 8.35E+00 1.64E+01 5.72E+01 FH 03 279317001 5/25/2011 Be-7 3.65E+01 3.37E+01 1.13E+02 FH 03 279317001 5/25/2011 Bi-214 1.50E+01 7.70E+00 2.36E+01 FH 03 279317001 5/25/2011 Ce-141 -1.71E+01 9.18E+00 2.34E+01 FH 03 279317001 5/25/2011 Ce-144 8.28E+00 1.81E+01 5.96E+01 FH 03 279317001 5/25/2011 Co-57 4.58E+00 2.43E+00 7.65E+00 FH 03 279317001 5/25/2011 Co-58 -4.30E+00 4.06E+00 1.21E+01 FH 03 279317001 5/25/2011 Co-60 2.01E+00 3.08E+00 1.07E+01 FH 03 279317001 5/25/2011 Cr-51 4.59E+01 4.66E+01 1.58E+02 FH 03 279317001 5/25/2011 Cs-134 -6.37E+00 3.66E+00 9.50E+00 FH 03 279317001 5/25/2011 Cs-137 8.39E+00 3.66E+00 1.18E+01 FH 03 279317001 5/25/2011 Fe-59 9.17E+00 1.10E+01 3.69E+01 FH 03 279317001 5/25/2011 1-131 -1.74E+00 4.45E+01 1.47E+02 FH 03 279317001 5/25/2011 K-40 3.43E+03 2.26E+02 8.44E+01 FH 03 279317001 5/25/2011 La-140 8.35E+00 1.64E+01 5.72E+01 FH 03 279317001 5/25/2011 Mn-54 -1. 14E+00 3.09E+00 9.93E+00 FH 03 279317001 5/25/2011 Nb-95 -2.09E+00 4.28E+00 1.30E+01 FH 03 279317001 5/25/2011 Pb-212 5.52E+00 5.01E+00 1.66E+01 FH 03 279317001 5/25/2011 Pb-214 1.1 OE+0 1 6.71E+00 2.15E+01 FH 03 279317001 5/25/2011 Ra-226 1.50E+01 7.70E+00 2.36E+01 FH 03 279317001 5/25/2011 Ru-103 1.84E+00 4.61E+00 1.53E+01 FH 03 279317001 5/25/2011 Ru-106 4.14E+01 2.80E+01 9.60E+0 1 FH 03 279317001 5/25/2011 Sb-124 3.58E-01 7.55E+00 2.49E+0 I FH 03 279317001 5/25/2011 Sb-125 -3.74E+00 6.84E+00 2.16E+01 FH 03 279317001 5/25/2011 Se-75 -2.15E+00 3.94E+00 1.29E+01 FH 03 279317001 5/25/2011 Th-228 5.52E+00 5.01E+00 1.66E+01 FH 03 279317001 5/25/2011 Th-230 1.50E+01 7.69E+00 2.36E+01 FH 03 279317001 5/25/2011 TI-208 4.67E+00 3.06E+00 1.01E+01 FH 03 279317001 5/25/2011 Zn-65 5.3 1E+00 8.97E+00 2.98E+01 FH 03 279317001 5/25/2011 Zr-95 -8.62E+00 7.02E+00 2.05E+01 FH 03 285107001 8/30/2011 Ac-228 -2.98E+00 7.45E+00 1.96E+01 FH 03 285107001 8/30/2011 Ag-108m 4.27E-01 1.18E+00 3.84E+00 FH 03 285107001 8/30/2011 Ag-110m 4.87E-01 1.35E+00 4.48E+00 FH 03 285107001 8/30/2011 Ba-140 1.33E+00 4.39E+00 1.49E+01 FH 03 285107001 8/30/2011 Be-7 -2.03E+01 1.42E+01 4.08E+0 1 FH 03 285107001 8/30/2011 Bi-214 -1.85E+00 4.14E+00 1.05E+01 FH 03 285107001 8/30/2011 Ce-141 -3.23E+00 2.9 1E+00 8.80E+00 FH 03 285107001 8/30/2011 Ce-144 1.05E+01 8.40E+00 2.63E+01 FH 03 285107001 8/30/2011 Co-57 -2.49E-01 9.68E-0 I 3.11E+00 FH 03 285107001 8/30/2011 Co-58 1.63E+00 1.74E+00 5.7 1E+00 FH 03 285107001 8/30/2011 Co-60 -1.15E+00 1.74E+00 5.46E+00 FH 03 285107001 8/30/2011 Cr-51 -1.07E+01 1.75E+01 5.62E+01 FH 03 285107001 8/30/2011 Cs-134 5.19E-01 1.64E+00 5.39E+00 FH 03 285107001 8/30/2011 Cs-137 -1.66E+00 1.52E+00 4.69E+00 FH 03 285107001 8/30/2011 Fe-59 1.84E+00 4.5 1E+00 1.51E+01 FH 03 285107001 8/30/2011 1-131 -1.57E+00 8.74E+00 2.84E+01 FH 03 285107001 8/30/2011 K-40 3.3 1E+03 1.78E+02 3.90E+0I FH 03 285107001 8/30/2011 La-140 1.33E+00 4.39E+00 1.49E+01 FH 03 285107001 8/30/2011 Mn-54 -5.57E-01 1.53E+00 4.89E+00 FH 03 285107001 8/30/2011 Nb-95 4.36E-01 1.64E+00 5.42E+00 FH 03 285107001 8/30/2011 Pb-212 -1.55E+00 3.11E+00 8.30E+00 168

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I FH FH 03 03 285107001 285107001 8/30/2011 8/30/2011 Pb-214 Ra-226 5.37E+00

-1.85E+00 4.73E+00 4.14E+00 1.11E+0 1 1.05E+01 I

FH 03 285107001 8/30/2011 Ru-103 2.48E-01 1.69E+00 5.74E+00 FH FH 03 03 285107001 285107001 8/30/2011 8/30/2011 Ru-106 Sb-124

-3.89E+00

-5.96E+00 1.22E+01 3.52E+00 4.01E+01 9.32E+00 I

FH 03 285107001 8/30/2011 Sb-125 -4.90E+00 3.73E+00 1.1OE+01 FH FH FH 03 03 03 285107001 285107001 285107001 8/30/2011 8/30/2011 8/30/2011 Se-75 Th-228 Th-230

-2.43E+00

-1.55E+00

-1.85E+00 2.03E+00 3.11E+00 4.14E+00 6.32E+00 8.30E+00 1.05E+01 I

FH FH FH 03 03 03 285107001 285107001 285107001 8/30/2011 8/30/2011 8/30/2011 TI-208 Zn-65 Zr-95 9.94E-01

-3.46E+00

-2.13E+00 2.34E+00 3.92E+00 2.86E+00 4.55E+00 1.24E+01 8.96E+00 I

FH 03 290636001 11/15/2011 Ac-228 -6.30E+00 7.02E+00 1.76E+01 FH FH 03 03 290636001 290636001 11/15/2011 11/15/2011 Ag- 108m Ag-1 I10m 1.12E-01

-3.69E+00 1.11 E+00 1.83E+00 3.7 1E+00 3.99E+00 I

FH 03 290636001 11/15/2011 Ba-140 3.30E+00 3.97E+00 1.32E+01 FH FH FH 03 03 03 290636001 290636001 290636001 11/15/2011 11/15/2011 11/15/2011 Be-7 Bi-214 Ce-141

-1.20E+01 6.59E+00 3.7 1E+00 1.29E+01 4.07E+00 3.75E+00 4.1OE+01 7.80E+00 9.8 1E+00 I

8.29E+00 2.74E+01 FH FH FH 03 03 03 290636001 290636001 290636001 11/15/2011 11/15/2011 11/15/2011 Ce-144 Co-57 Co-58 3.73E+00

-9.34E-01

-2.06E+00 1.12E+00 1.59E+00 3.58E+00 4.67E+00 I

FH 03 290636001 11/15/2011 Co-60 1.24E+00 1.55E+00 5.15E+00 FH FH 03 03 290636001 290636001 11/15/2011 11/15/2011 Cr-51 Cs-134 1.31E+01

-2.3 1E+00 1.66E+01 1.77E+00 5.58E+01 5.22E+00 I FH 03 290636001 11/15/2011 Cs-137 3.28E+00 1.58E+00 4.77E+00 FH FH FH 03 03 03 290636001 290636001 290636001 11/15/2011 11/15/2011 11/15/2011 Fe-59 1-131 K-40 5.09E+00 3.15E+00 3.73E+03 4.07E+00 7.12E+00 2.03E+02 1.34E+01 2.40E+0 I 4.OOE+01 I

3.30E+00 3.97E+00 1.32E+01 U FH FH FH 03 03 03 290636001 290636001 290636001 11/15/2011 11/15/2011 11/15/2011 La-140 Mn-54 Nb-95

-3.33E-01 4.18E+00 1.31E+00 1.87E+00 4.19E+00 5.53E+00 U

U I

FH 03 290636001 11/15/2011 Pb-212 6.75E-01 3.72E+00 8.7 1E+00 U FH FH 03 03 290636001 290636001 11/15/2011 11/15/2011 Pb-214 Ra-226

-2.33E-01 6.59E+00 3.46E+00 4.07E+00 9.52E+00 7.80E+00 U

U U

I FH 03 290636001 11/15/2011 Ru-103 - 1.16E+00 1.68E+00 5.39E+00 FH FH FH 03 03 03 290636001 290636001 290636001 11/15/2011 11/15/2011 11/15/2011 Ru-106 Sb-124 Sb-125 1.33E+01 3.13E+00

-5.1 IE-01 1.23E+01 2.93E+00 4.15E+00 4.02E+01 9.8 1E+00 1.11E+01 U

U U

i

-1.56E-01 1.82E+00 5.84E+00 U FH FH FH 03 03 03 290636001 290636001 290636001 11/15/2011 11/15/2011 11/15/2011 Se-75 Th-228 Th-230 6.75E-01 6.59E+00 3.72E+00 4.06E+00 8.71E+00 7.80E+00 U

U I

FH 03 290636001 11/15/2011 TI-208 1.46E-01 2.39E+00 4.15E+00 U FH FH 03 03 290636001 290636001 11/15/2011 11/15/2011 Zn-65 Zr-95

-1.31E-01 4.22E+00 3.56E+00 2.80E+00 1.18E+01 8.90E+00 U

U U

I FH 53 273217002 2/24/2011 Ac-228 2.97E+01 1.76E+01 5.73E+01 FH FH FH 53 53 53 273217002 273217002 273217002 2/24/2011 2/24/2011 2/24/2011 Ag-108m Ag-110m Ba-140 8.30E-01

-1.54E+00

-1.10E+01 2.45E+00 3.52E+00 2.06E+0I 8.20E+00 1.1OE+01 6.46E+01 U

U U

I 2.46E+00 3.33E+01 1.1OE+02 U FH FH 53 53 273217002 273217002 2/24/2011 2/24/2011 Be-7 Bi-214 2.9 1E+0 1 1.37E+01 2.73E+01 UI I

169 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

FH 53 273217002 2/24/2011 Ce-141 1.26E+01 5.42E+00 1.61E+01 FH 53 273217002 2/24/2011 Ce-144 -5.78E+00 1.14E+01 3.75E+01 FH 53 273217002 2/24/2011 Co-57 1.47E+00 1.42E+00 4.76E+00 FH 53 273217002 2/24/2011 Co-58 -4.57E-04 4.41 E+00 1.47E+01 FH 53 273217002 2/24/2011 Co-60 2.87E+00 4.63E+00 1.58E+01 FH 53 273217002 2/24/2011 Cr-51 3.87E+00 3.94E+01 1.34E+02 FH 53 273217002 2/24/2011 Cs-134 -2.77E+00 4.40E+00 1.41E+01 FH 53 273217002 2/24/2011 Cs-137 -2.53E+00 3.65E+00 1.12E+01 FH 53 273217002 2/24/2011 Fe-59 -2.55E+01 1.35E+01 3.49E+0I FH 53 273217002 2/24/2011 1-131 2.98E+00 2.48E+01 8.36E+01 FH 53 273217002 2/24/2011 K-40 2.98E+03 1.89E+02 1.26E+02 FH 53 273217002 2/24/2011 La-140 -I.10E+01 2.06E+01 6.46E+01 FH 53 273217002 2/24/2011 Mn-54 -4.51 E+00 3.50E+00 1.03E+01 FH 53 273217002 2/24/2011 Nb-95 -1.74E+00 3.99E+00 1.30E+01 FH 53 273217002 2/24/2011 Pb-212 1.15E+00 6.42E+00 1.50E+01 FH 53 273217002 2/24/2011 Pb-214 -1.37E+01 8.91 E+00 2.19E+01 FH 53 273217002 2/24/2011 Ra-226 2.91 E+01 1.37E+01 2.73E+01 FH 53 273217002 2/24/2011 Ru-103 -1.97E+00 4.74E+00 1.52E+01 FH 53 273217002 2/24/2011 Ru-106 6.87E+00 3.37E+01 1.IOE+02 FH 53 273217002 2/24/2011 Sb-124 -6.42E+00 1.26E+01 3.90E+01 FH 53 273217002 2/24/2011 Sb-125 2.82E+00 7.54E+00 2.53E+01 FH 53 273217002 2/24/2011 Se-75 -2.36E+00 3.79E+00 1.18E+01 FH 53 273217002 2/24/2011 Th-228 1.15E+00 6.42E+00 1.50E+01 FH 53 273217002 2/24/2011 Th-230 2.91E+01 1.36E+01 2.73E+01 FH 53 273217002 2/24/2011 TI-208 2.82E+00 3.44E+00 1.13E+01 FH 53 273217002 2/24/2011 Zn-65 -5.27E+00 1.05E+01 3.28E+01 FH 53 273217002 2/24/2011 Zr-95 9.45E+00 7.93E+00 2.69E+01 FH 53 279317002 6/1/2011 Ac-228 2.40E+00 I.69E+01 5.65E+01 FH 53 279317002 6/1/2011 Ag-108m 1.58E-01 2.75E+00 9.14E+00 FH 53 279317002 6/1/2011 Ag-110m -4.73E+00 4.02E+00 1.19E+01 FH 53 279317002 6/1/2011 Ba-140 1.65E+01 1.19E+01 4.48E+01 FH 53 279317002 6/1/2011 Be-7 1.62E+01 3.84E+01 1.29E+02 FH 53 279317002 6/1/2011 Bi-214 -1.84E+01 9.41E+00 2.40E+01 FH 53 279317002 6/1/2011 Ce-141 3.14E+00 9.20E+00 3.01E+01 FH 53 279317002 6/1/2011 Ce-144 -1.64E+01 2.33E+01 7.33E+01 FH 53 279317002 6/1/2011 Co-57 -2.13E-01 2.91E+00 9.47E+00 FH 53 279317002 6/1/2011 Co-58 9.14E-01 4.73E+00 1.56E+01 FH 53 279317002 6/1/2011 Co-60 1.74E+00 4.39E+00 1.50E+01 FH 53 279317002 6/1/2011 Cr-51 6.16E+01 5.30E+01 1.78E+02 FH 53 279317002 6/1/2011 Cs-134 -2.53E+00 4.62E+00 1.45E+01 FH 53 279317002 6/1/2011 Cs-137 2.02E+00 3.96E+00 1.33E+01 FH 53 279317002 6/1/2011 Fe-59 -2.80E+00 1.11 E+0 1 3.5 1E+01 FH 53 279317002 6/1/2011 1-131 4.7 1E+00 3.33E+01 1.11 E+02 FH 53 279317002 6/1/2011 K-40 3.55E+03 2.35E+02 8.08E+01 FH 53 279317002 6/1/2011 La-140 1.65E+01 1.19E+01 4.48E+01 FH 53 279317002 6/1/2011 Mn-54 1.52E+00 3.73E+00 1.24E+01 FH 53 279317002 6/1/2011 Nb-95 -2.90E+00 4.90E+00 1.54E+01 FH 53 279317002 6/1/2011 Pb-212 1.77E+00 6.55E+00 2.18E+01 FH 53 279317002 6/1/2011 Pb-214 2.52E+00 8.40E+00 2.79E+01 FH 53 279317002 6/1/2011 Ra-226, -1.84E+01 9.41 E+00 2.40E+01 FH 53 279317002 6/1/2011 Ru-103 4.50E+00 4.99E+00 1.69E+01 170

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I FH FH 279317002 279317002 6/1/2011 6/1/2011 Ru-106 Sb-124

-1.64E+01 6.96E+00 3.19E+01 9.80E+00 1.01E+02 3.45E+01 I

FH 279317002 6/1/2011 Sb-125 -5.73E+00 8.44E+00 2.67E+01 FH FH 279317002 279317002 6/1/2011 6/1/2011 Se-75 Th-228

-1.13E+00 1.77E+00 5.07E+00 6.55E+00 1.68E+01 2.18E+01 I

FH 279317002 6/1/2011 Th-230 -1.84E+01 9.40E+00 2.40E+01 FH FH FH 279317002 279317002 279317002 6/1/2011 6/1/2011 6/1/2011 TI-208 Zn-65 Zr-95 2.38E+00

-1.40E+01 1.04E+01 3.44E+00 1.09E+01 8.93E+00 1.16E+01 3.07E+01 3.OOE+01 I

FH FH FH 285107002 285107002 285107002 8/24/2011 8/24/2011 8/24/2011 Ac-228 Ag-108m Ag-I 10m

-1.25E+01

-6.89E-01

-4.66E+00 1.07E+01 1.30E+00 2.18E+00 2.90E+01 4.19E+00 5.51E+00 I

FH 285107002 8/24/2011 Ba-140 -5.31 E+00 5.45E+00 1.61E+01 FH FH 285107002 285107002 8/24/2011 8/24/2011 Be-7 Bi-214

-2.46E+00 2.25E+01 1.75E+01 9.09E+00 5.72E+01 1.63E+01 I

FH 285107002 8/24/2011 Ce-141 2.94E+00 2.56E+00 8.34E+00 FH FH FH 285107002 285107002 285107002 8/24/2011 8/24/2011 8/24/2011 Ce-144 Co-57 Co-58 2.37E+00 4.95E-01 4.37E+00 6.94E+00 9.OOE-01 2.29E+00 2.3 1E+01 3.01E+00 7.34E+00 I

2.2 1E+00 7.29E+00 FH FH FH 285107002 285107002 285107002 8/24/2011 8/24/2011 8/24/2011 Co-60 Cr-51 Cs-134

-5.41E-01 1.02E+01 1.04E+00 1.79E+01 2.29E+00 6.08E+01 7.72E+00 I

FH 285107002 8/24/2011 Cs-137 -3.03E-02 2.5 1E+00 6.57E+00 FH FH 285107002 285107002 8/24/2011 8/24/2011 Fe-59 1-131

-9.30E+00

-2.19E+00 6.3 1E+00 8.76E+00 1.81E+01 2.9 1E+01 5.72E+01 I

FH 285107002 8/24/2011 K-40 3.42E+03 1.70E+02 FH FH FH 285107002 285107002 285107002 8/24/2011 8/24/2011 8/24/2011 La-140 Mn-54 Nb-95

-5.3 1E+00

-9.65E-01 1.11 E+00 5.45E+00 1.90E+00 2.05E+00 1.61E+01 6.16E+00 6.94E+00 U

U U

I 3.48E+00 8.54E+00 U FH FH FH 285107002 285107002 285107002 8/24/2011 8/24/2011 8/24/2011 Pb-212 Pb-214 Ra-226

-6.57E+00 1.48E+01 2.25E+01 5.46E+00 9.09E+00 1.03E+01 1.63E+01 UI I

FH 285107002 8/24/2011 Ru-103 1.88E+00 2.23E+00 7.33E+00 U FH 285107002 8/24/2011 Ru-106 2.12E+01 1.72E+01 5.52E+01 U FH FH 285107002 285107002 8/24/2011 8/24/2011 Sb-124 Sb-125 1.12E+01 3.58E+00 4.84E+00 4.09E+00 1.60E+01 1.36E+01 U

U !

FH FH FH 285107002 285107002 285107002 8/24/2011 8/24/2011 8/24/2011 Se-75 Th-228 Th-230

-5.36E+00

-6.57E+00 2.25E+01 2.78E+00 3.48E+00 9.07E+00 5.79E+00 8.54E+00 1.63E+01 U

U UI I

8/24/2011 1.03E+00 2.70E+00 5.84E+00 U 285107002 I

FH T1-208 FH 285107002 8/24/2011 Zn-65 -1.52E+01 6.57E+00 1.62E+01 U FH 285107002 8/24/2011 Zr-95 -4.59E+00 3.85E+00 1.18E+01 U FH 290636002 11/16/2011 Ac-228 -2.OOE+00 8.45E+00 2.29E+01 U FH FH 290636002 290636002 11/16/2011 11/16/2011 Ag-108m Ag-110m

-5.86E-01 8.21E-01 1.32E+00 i.56E+00 4.3 1E+00 5.16E+00 U

U I FH 290636002 11/16/2011 Ba-140 -4.60E+00 4.50E+00 1.36E+01 U FH FH FH 290636002 290636002 290636002 11/16/2011 11/16/2011 11/16/2011 Be-7 Bi-214 Ce-141

-2.41 E+00 1.31E+01 1.14E+00 1.51E+01 4.4 1E+00 3.34E+00 4.99E+01 1.14E+01 1.09E+01 U

UI U

I 4.59E+00 9.64E+00 3.14E+01 U FH FH 290636002 290636002 11/16/2011 11/16/2011 Ce-144 Co-57 1.08E+00 1.30E+00 4.20E+00 U I

171 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

FH 53 290636002 11/16/2011 Co-58 -1.64E+00 1.86E+00 5.78E+00 U FH 53 290636002 11/16/2011 Co-60 -7.58E-02 1.83E+00 6. 1OE+00 U FH 53 290636002 11/16/2011 Cr-51 -4.13E+00 1.79E+01 5.95E+01 U FH 53 290636002 11/16/2011 Cs-134 6.41E-01 1.94E+00 6.38E+00 U FH 53 290636002 11/16/2011 Cs-137 2.04E+00 1.72E+00 5.6 1E+00 U FH 53 290636002 11/16/2011 Fe-59 -1.I1E+00 5.19E+00 1.67E+01 U FH 53 290636002 11/16/2011 1-131 6.74E+00 7.94E+00 2.64E+01 U FH 53 290636002 11/16/2011 K-40 3.66E+03 1.94E+02 4.5 1E+01 FH 53 290636002 11/16/2011 La-140 -4.60E+00 4.50E+00 1.36E+01 U FH 53 290636002 11/16/2011 Mn-54 -2.53E+00 1.78E+00 5.25E+00 U FH 53 290636002 11/16/2011 Nb-95 2.32E+00 1.86E+00 6.06E+00 U FH 53 290636002 11/16/2011 Pb-212 4.55E+00 5.59E+00 9.48E+00 U FH 53 290636002 11/16/2011 Pb-214 6.66E+00 4.39E+00 1.18E+01 U FH 53 290636002 11/16/2011 Ra-226 1.31E+01 4.41E+00 1.14E+01 UI FH 53 290636002 11/16/2011 Ru-103 -5.55E+00 2.33E+00 5.86E+00 U FH 53 290636002 11/16/2011 Ru-106 3.30E+01 1.55E+01 4.70E+01 U FH 53 290636002 11/16/2011 Sb-124 -6.18E+00 4.08E+00 1.14E+01 U FH 53 290636002 11/16/2011 Sb-125 1.26E+00 4.09E+00 1.36E+01 U FH 53 290636002 11/16/2011 Se-75 -1.63E+00 2.15E+00 6.98E+00 U FH 53 290636002 11/16/2011 Th-228 4.55E+00 5.59E+00 9.48E+00 U FH 53 290636002 11/16/2011 Th-230 1.31E+01 4.39E+00 1.14E+01 UI FH 53 290636002 11/16/2011 TI-208 7.86E-01 1.95E+00 5.5 1E+00 U FH 53 290636002 11/16/2011 Zn-65 -1.13E+01 5.57E+00 1.41E+01 U FH 53 290636002 11/16/2011 Zr-95 5.93E-01 3.36E+00 1.11 E+01 U HA 04 279318001 5/26/2011 Ac-228 -6.90E+00 1.42E+01 4.47E+01 U HA 04 279318001 5/26/2011 Ag-108m 6.61E-01 2.39E+00 7.83E+00 U HA 04 279318001 5/26/2011 Ag-il0m -4.77E+00 3.04E+00 8.28E+00 U HA 04 279318001 5/26/2011 Ba-140 -2.61E+01 2.26E+01 6.03E+01 U HA 04 279318001 5/26/2011 Be-7 1.11E+01 2.88E+01 9.47E+01 U HA 04 279318001 5/26/2011 Bi-214 -1.38E+01 8.16E+00 2.07E+01 U HA 04 279318001 5/26/2011 Ce-141 -2.65E+00 7.36E+00 2.32E+01 U HA 04 279318001 5/26/2011 Ce-144 -5.48E+00 1.59E+01 5.02E+01 U HA 04 279318001 5/26/2011 Co-57 2.28E+00 2. 1OE+00 6.86E+00 U HA 04 279318001 5/26/2011 Co-58 3.47E-01 4.23E+00 1.39E+01 U HA 04 279318001 5/26/2011 Co-60 -2.55E+00 3.26E+00 9.67E+00 U HA 04 279318001 5/26/2011 Cr-51 4.48E+01 4.54E+01 1.53E+02 U HA 04 279318001 5/26/2011 Cs-134 2.20E+00 3.62E+00 1.23E+01 U HA 04 279318001 5/26/2011 Cs-137 -9.88E-01 3.26E+00 1.07E+01 U HA 04 279318001 5/26/2011 Fe-59 -1.38E+01 1.05E+01 2.97E+01 U HA 04 279318001 5/26/2011 1-131 -1.05E-01 4.20E+01 1.37E+02 U HA 04 279318001 5/26/2011 K-40 2.32E+03 1.66E+02 5.48E+01 HA 04 279318001 5/26/2011 La-140 -2.6 1E+01 2.26E+01 6.03E+01 U HA 04 279318001 5/26/2011 Mn-54 -2.28E-02 3.1 OE+00 1.01E+01 U HA 04 279318001 5/26/2011 Nb-95 1.52E+01 5.67E+00 1.73E+01 U HA 04 279318001 5/26/2011 Pb-212 -1.00E+01 5.70E+00 1.60E+01 U HA 04 279318001 5/26/2011 Pb-214 -8.13E+00 6.88E+00 1.99E+01 U HA 04 279318001 5/26/2011 Ra-226 -1.38E+01 8.16E+00 2.07E+01 U HA 04 279318001 5/26/2011 Ru-103 -5.92E+00 4.75E+00 1.32E+01 U HA 04 279318001 5/26/2011 Ru-106 -8.97E+00 2.64E+0 1 8.59E+01 U HA 04 279318001 5/26/2011 Sb-124 -6.5 1E+00 7.29E+00 2.04E+01 U HA 04 279318001 5/26/2011 Sb-125 -6.36E+00 7.39E+00 2.2 1E+01 U 172

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I HA HA 04 04 279318001 279318001 5/26/2011 5/26/2011 Se-75 Th-228 4.50E+00

-1.00E+01 4.OOE+00 5.70E+00 1.35E+01 1.60E+01 U

U

,I HA 279318001 5/26/2011 Th-230 -1.38E+01 8.16E+00 2.07E+01 U 04 HA HA 04 04 279318001 279318001 5/26/2011 5/26/2011 TI-208 Zn-65 6,76E-01

-2.50E+00 3.01E+00 7.36E+00 1.02E+01 2.39E+01 U U

U I

HA 04 279318001 5/26/2011 Zr-95 -9.12E+00 7.2 1E+00 2.03E+01 HA HA HA 04 04 04 290633001 290633001 290633001 11/15/2011 11/15/2011 11/15/2011 Ac-228 Ag-108m Ag-110m 1.12E+01 2.15E+00

-5.04E-01 1.56E+01 2.32E+00 2.80E+00 4.15E+01 7.76E+00 8.96E+00 U

U U

I U

HA HA HA 04 04 04 290633001 290633001 290633001 11/15/2011 11/15/2011 11/15/2011 Ba-140 Be-7 Bi-214

-2.95E+01

-1.39E+01

-1.86E+00 1.62E+01 2.72E+01 7.72E+00 3.04E+01 8.80E+01 2.14E+01 U

U I

HA 290633001 11/15/2011 -1.89E+01 6.85E+00 1.61E+01 U 04 Ce-141 HA HA 04 04 290633001 290633001 11/15/2011 11/15/2011 Ce-144 Co-57

-3.18E+00

-5.32E-01 1.43E+01 1.84E+00 4.74E+01

6. 13E+00 U

U U

I HA 04 290633001 11/15/2011 Co-58 -1.11E+01 5.4 1E+00 8.38E+00 HA HA HA 04 04 04 290633001 290633001 290633.001 11/15/2011 11/15/2011 11/15/2011 Co-60 Cr-51 Cs-134

-2.6 1E+00

-1.69E+01

-1.67E+00 2.92E+00 3.30E+01 5.3 1E+00 8.64E+00 1.1 OE+02 1.10E+01 U

U U

I 2.72E+00 3.06E+00 9.97E+00 U HA HA HA 04 04 04 290633001 290633001 290633001 11/15/2011 11/15/2011 11/15/2011 Cs-137 Fe-59 1-131

-1.59E+00 3.04E+00 7.39E+00 1.56E+01 2.39E+01 5.28E+01 U

U I

HA 04 290633001 11/15/2011 K-40 2.03E+03 1.48E+02 8.8 1E+01 HA HA 04 04 290633001 290633001 11/15/2011 11/15/2011 La-140 Mn-54

-2.95E+01 4.05E+00

-1.27E+00 1.61E+01 3.01E+00 3.04E+01 1.01E+01 1.07E+01 I

HA 04 290633001 11/15/2011 Nb-95 3.23E+00 HA HA HA 04 04 04 290633001 290633001 290633001 11/1512011 11/15/2011 11/15/2011 Pb-212 Pb-214 Ra-226 4.5 1E+00 8.07E+00

-1.86E+00 8.08E+00 1.03E+01 7.72E+00 1.80E+01 2.19E+01 2.14E+01 I

11/15/2011 -2.64E+00 3.38E+00 1.07E+01 HA 04 290633001 I

Ru-103 HA 04 290633001 11/15/2011 Ru-106 8.98E+00 2.47E+01 8.1OE+01 HA 04 290633001 11/15/2011 Sb-124 -2.53E+00 6.52E+00 2.08E+01 HA 04 290633001 11/15/2011 Sb-125 -2.12E+00 6.65E+00 2.19E+01 HA HA 04 04 290633001 290633001

.11/15/2011 11/15/2011 Se-75 Th-228

-3.3 1E+00 4.5 1E+00

-1.86E+00 3.80E+00 8.08E+00 7.72E+00 1.17E+01 1.80E+01 2.14E+01 I

HA 04 290633001 11/15/2011 Th-230 HA HA HA 04 04 04 290633001 290633001 290633001 11/15/2011 11/15/2011 11/15/2011 TI-208 Zn-65 Zr-95

-4.49E+00

-3.82E+00

-4.06E-01 4.59E+00 7.11E+00 5.72E+00 1.12E+01 2.25E+01 1.93E+01 I

HA 54 279318002 5/25/2011 Ac-228 -2.96E+0 1 2.01E+01 4.63 E+01 HA HA 54 54 279318002 279318002 5/25/2011 5/25/2011 Ag-108m Ag-110m 2.71E-01

-1.29E+00 2.55E+00 3.09E+00 8.19E+00 1.00E+01 I

HA 54 279318002 5/25/2011 Ba-140 -2.64E+01 2.36E+01 6.92E+01 HA HA 54 54 279318002 279318002 5/25/2011 5/25/2011 Be-7 Bi-214 1.14E+00 1.15E+01 3.65E+01 1.20E+01 1.23E+02 2.41E+01 2.40E+0 1 I

HA 54 279318002 5/25/2011 Ce-141 -1.47E+01 1.04E+01 HA HA HA 54 54 54 279318002 279318002 279318002 5/25/2011 5/25/2011 5/25/2011 Ce-144 Co-57 Co-58 1.01E+01 2.8 1E+00

-1.51E+00 1.56E+01 2.OOE+00 3.96E+00 5.22E+01 6.5 1E+00 1.27E+01 I

HA 5/25/2011 -3.56E+00 3.41E+00 1.04E+01 HA 54 54 279318002 279318002 5/25/2011 Co-60 Cr-51 7.42E+0 1 5.23E+01 1.66E+02 I

173 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

HA 279318002 5/25/2011 Cs-134 -3.61E+00 3.86E+00 1.19E+01 HA 279318002 5/25/2011 Cs-137 -4.33E-02 3.14E+00 1.04E+01 HA 279318002 5/25/2011 Fe-59 4.74E+00 9.17E+00 3.12E+01 HA 279318002 5/25/2011 1-131 -1.44E+01 5.25E+01 1.68E+02 HA 279318002 5/25/2011 K-40 1.84E+03 1.35E+02 9.50E+01 HA 279318002 5/25/2011 La- 140 -2.64E+01 2.35E+01 6.92E+01 HA 279318002 5/25/2011 Mn-54 2.41 E+00 3.48E+00 1.15E+01 HA 279318002 5/25/2011 Nb-95 -3.55E+00 4.30E+00 1.34E+01 HA 279318002 5/25/2011 Pb-212 9.96E+00 9.73E+00 1.75E+01 HA 279318002 5/25/2011 Pb-214 -2.65E+01 1.20E+01 2.15E+01 HA 279318002 5/25/2011 Ra-226 1.15E+01 1.20E+01 2.4 1E+01 HA 279318002 5/25/2011 Ru-103 1.70E+00 4.70E+00 1.59E+01 HA' 279318002 5/25/2011 Ru-106 1.39E+01 2.89E+01 9.67E+01 HA 279318002 5/25/2011 Sb-124 5.99E+00 1.05E+01 3.49E+01 HA 279318002 5/25/2011 Sb-125 1.73E+01 8.83E+00 2.67E+01 HA 279318002 5/25/2011 Se-75 -2.06E+00 3.98E+00 1.28E+01 HA 279318002 5/25/2011 Th-228 9.96E+00 9.73E+00 1.75E+01 HA 279318002 5/25/2011 Th-230 1.15E+01 1.20E+01 2.4 1E+01 HA 279318002 5/25/2011 TI-208 3.21E+00 4.43E+00 1.14E+01 HA 279318002 5/25/2011 Zn-65 -8.68E+00 7.84E+00 2.43E+01 HA 279318002 5/25/2011 Zr-95 1.52E+00 7.57E+00 2.50E+01 HA 290633002 11/16/2011 Ac-228 -1.37E+01 2.27E+01 4.61E+01 HA 290633002 11/16/2011 Ag-108m -2. 1OE+00 2.52E+00 8.01E+00 HA 290633002 11/16/2011 Ag-i10m -3.61E+01 9.28E+00 9.47E+00 HA 290633002 11/16/2011 Ba-140 -2.45E+00 1.02E+01 3.28E+01 HA 290633002 11/16/2011 Be-7 1.29E+01 2.98E+01 9.88E+01 HA 290633002 11/16/2011 Bi-214 -8.81 E+00 9.28E+00 2.26E+01 HA 290633002 11/16/20 11 Ce- 141 -1.69E+00 4.58E+00 1.51E+01 HA 290633002 11/16/2011 Ce-144 -2.62E+00 1.22E+01 4.06E+01 HA 290633002 11/16/2011 Co-57 -6.72E-01 1.56E+00 5.2 1E+00 HA 290633002 11/16/201 1 Co-58 -7.64E-01 3.76E+00 1.24E+01 HA 290633002 11/16/20 11 Co-60 -4.18E-01 3.66E+00 1.21E+01 HA 290633002 11/16/20 11 Cr-51 -2.94E+0 1 3.42E+01 1.11 E+02 HA 290633002 11/16/2011 Cs-134 -7.01E-01 3.86E+00 1.27E+01 HA 290633002 11/16/2011 Cs-137 -1.69E+00 5.99E+00 1.76E+01 HA 290633002 11/16/2011 Fe-59 2.20E+00 9.07E+00 2.95E+01 HA 290633002 11/16/2011 1-131 -8.18E-01 1.37E+01 4.6 1E+01 HA 290633002 11/16/2011 K-40 2.27E+03 1.5 1E+02 9.30E+01 HA 290633002 11/16/2011 La-140 -2.45E+00 1.02E+01 3.28E+01 HA 290633002 11/16/2011 Mn-54 - 1.16E+00 2.96E+00 9.62E+00 HA 290633002 11/16/2011 Nb-95 5.37E+00 3.65E+00 1.21E+01 HA 290633002 11/16/2011 Pb-212 -6.76E+00 6.16E+00 1.61E+01 HA 290633002 11/16/2011 Pb-214 -2.64E+00 9.47E+00 2.17E+01 HA 290633002 11/16/2011 Ra-226 -8.81E+00 9.28E+00 2.26E+01 HA 290633002 11/16/2011 Ru-103 -1.36E+00 4.86E+00 1.25E+01 HA 290633002 11/16/2011 Ru-106 -1.56E+01 2.80E+01 8.72E+01 HA 290633002 11/16/2011 Sb-124 -1.01E+01 8.49E+00 2.40E+01 HA 290633002 11/16/2011 Sb-125 -3.77E+00 7.42E+00 2.4 1E+01 HA 290633002 11/16/2011 Se-75 - 1.44E+00 3.65E+00 1.15E+01 HA 290633002 11/16/2011 Th-228 -6.76E+00 6.16E+00 1.61E+01 HA 290633002 11/16/2011 Th-230 -8.81E+00 9.28E+00 2.26E+01 174

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

HA HA HA 54 54 54 290633002 290633002 290633002 11/16/2011 11/16/2011 11/16/2011 TI-208 Zn-65 Zr-95

-4.48E+00 6.55E+00 6.14E+00 4.28E+00 7.27E+00 6.75E+00 1.05E+01 2.39E+01 2.27E+01 U

U U

I I

U I

I I

175 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

MS 06 279332004 6/1/2011 Sr-89 -1.93E+02 1.04E+02 2.87E+02 U 06 279332004 6/1/2011 Sr-90 -5.51E+01 6.94E+01 2.44E+02 U MS MS 06 290634004 11/16/2011 Sr-89 8.47E+01 7.82E+01 1.36E+02 U MS 06 290634004 11/16/2011 Sr-90 1.32E+01 5.19E+01 1.68E+02 U MS 56 279332005 6/1/2011 Sr-89 -7.52E+01 1.27E+02 2.65E+02 U MS 56 279332005 6/1/2011 Sr-90 1.13E+02 8.71 E+01 2.74E+02 U MS 56 290634005 11/16/2011 Sr-89 -9.60E+0 I 6.73E+01 1.78E+02 U MS 56 290634005 11/16/2011 Sr-90 1.02E+00 4.17E+01 1.37E+02 U 176

Seabrook REMP Summary of 2011 Data U

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

MU MU MU 06 06 06 279332001 279332001 279332001 6/1/2011 6/1/2011 6/1/2011 Ac-228 Ag-108m Ag-il0m 5.48E+00 1.44E+00 5.47E-01 1.45E+01 2.99E+00 3.23E+00 4.86E+01 9.94E+00 1.09E+01 U

U U

I MU MU MU 06 06 06 279332001 279332001 279332001 6/1/2011 6/1/2011 6/1/2011 Ba-140 Be-7 Bi-214 4.50E+00 7.55E+00 5.59E+00 1.71E+01 3.81 E+0 I 8.04E+00 5.78E+01 1.24E+02 2.86E+01 U

U U

I MU 06 279332001 6/1/2011 Ce-141 -4.95E+00 7.80E+00 2.33E+01 U MU MU MU 06 06 06 279332001 279332001 279332001 6/1/2011 6/1/2011 6/1/2011 Ce-144 Co-57 Co-58 1.48E+01

-6.17E+00 8.44E-01 1.86E+01 2.90E+00 4.86E+00 6.07E+01 6.93E+00 1.62E+01 U

U U

I MU MU MU 06 06 06 279332001 279332001 279332001 6/1/2011 6/1/2011 6/1/2011 Co-60 Cr-51 Cs-134 7.36E-01 3.5 1E+01 4.47E-01 4.OOE+00 4.58E+01 4.12E+00 1.35E+01 1.56E+02 1.37E+01 U

U U

I 1.25E+01 U U

MU 06 279332001 6/1/2011 Cs-137 5.17E+00 3.53E+00 MU 06 279332001 6/1/2011 Fe-59 -1.76E+00 1.16E+01 3.84E+01 U MU 06 279332001 6/1/2011 1-131 -6.84E+01 3.90E+01 9.87E+01 U MU 06 279332001 6/1/2011 K-40 1.05E+03 1.35E+02 1.3 1E+02 MU MU MU 06 06 06 279332001 279332001

.279332001 6/1/2011 6/1/2011 6/1/2011 La-140 Mn-54 Nb-95 4.50E+00 2.97E+00 7.59E+00 1.71E+01 4.32E+00 3.89E+00 5.78E+01 1.47E+01 1.41E+01 I

MU MU MU 06 06 06 279332001 279332001 279332001 6/1/2011 6/1/2011 6/1/2011 Pb-212 Pb-214 Ra-226

-4.90E+00 9.69E+00 5.59E+00 6.14E+00 8.45E+00 8.04E+00 1.96E+01 2.33E+01 2.86E+01 I

5.85E+00 1.14E+01 S

MU 06 279332001 6/1/2011 Ru-103 -1.35E+01 MU 06 279332001 6/1/2011 Ru-106 -3.50E+00 3.01E+01 9.95E+01 MU 06 279332001 6/1/2011 Sb-124 -7.44E+00 1.11 E+0 1 3.09E+01 MU 06 279332001 6/1/2011 Sb-125 -6.18E+00 9.39E+00 2.85E+01 MU MU MU 06 06 06 279332001 279332001 279332001 6/1/2011 6/1/2011 6/1/2011 Se-75 Th-228 Th-230

-6.98E+00

-4.90E+00 5.59E+00 4.95E+00 6.14E+00 8.04E+00 1.37E+01 i.96E+01 2.86E+01 I

MU MU MU 06 06 06 279332001 279332001 279332001 6/1/2011 6/1/2011 6/1/2011 TI-208 Zn-65 Zr-95 6.99E-01

-1.26E+01 1.43E+00 4.07E+00 9.72E+00 8.44E+00 1.43E+01 2.67E+01 2.82E+01 I

I MU 06 290634001 11/16/2011 Ac-228 6.38E+00 7.48E+00 1.51E+01 MU 06 290634001 11/16/2011 Ag-108m 6.25E-03 1.06E+00 3.49E+00 MU 06 290634001 11/16/2011 Ag-i 10m -2.02E-01 1.26E+00 3.68E+00 MU 06 290634001 11/16/2011 Ba-140 -6.49E+00 3.97E+00 1.06E+01 MU MU 06 06 290634001 290634001 11/16/2011 11/16/2011 Be-7 Bi-214 3.15E+01

-5.12E+00 1.46E+01 4.44E+00 4.42E+01 1.02E+01 /1 a

MU 06 290634001 11/16/2011 Ce-141 -7.82E+00 3.54E+00 7.96E+00 MU 06 290634001 11/16/2011 Ce-144 1.80E+00 6.95E+00 2.28E+01 MU 06 290634001 11/16/2011 Co-57 -1.35E+00 1.17E+00 2.9 1E+00 MU 06 290634001 11/16/2011 Co-58 -1.80E+00 1.38E+00 4.13E+00 I

MU 06 290634001 11/16/2011 Co-60 1.85E+00 1.49E+00 5.03E+00 MU 06 290634001 11/16/2011 Cr-51 2.41E-01 1.48E+01 4.98E+01 MU 06 290634001 11/16/2011 Cs-134 3.02E-01 1.43E+00 4.8 1E+00 MU 06 290634001 11/16/2011 Cs-137 3.08E+00 2.18E+00 3.96E+00 MU MU MU 06 06 06 290634001 290634001 290634001 11/16/2011 11/16/2011 11/16/2011 Fe-59 1-131 K-40 2.27E+00 6.91E-01 1.08E+03 3.38E+00 6.35E+00 6.69E+01 1.12E+01 2.12E+01 4.06E+01 I

MU 06 290634001 11/16/2011 La-140 -6.49E+00 3.96E+00 1.06E+01 U A

177 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

MU 290634001 11/16/2011 Mn-54 -1.86E+00 1.34E+00 3.97E+00 MU 290634001 11/16/2011 Nb-95 2.06E+00 1.39E+00 4.62E+00 MU 290634001 11/16/2011 Pb-212 1.48E+00 3.33E+00 8.OOE+00 MU 290634001 11/16/2011 Pb-214 3.15E+00 3.33E+00 9.48E+00 MU 290634001 11/16/2011 Ra-226 -5.12E+00 4.44E+00 1.02E+01 MU 290634001 11/16/2011 Ru-103 -9.24E-0 I 1.55E+00 4.91 E+00 MU 290634001 11/16/2011 Ru-106 -7.75E+00 1.21E+01 3.76E+01 MU 290634001 11/16/2011 Sb-124 4.14E+00 3.02E+00 1.04E+01 MU 290634001 11/16/2011 Sb-125 1.27E+00 3.17E+00 1.05E+01 MU 290634001 11/16/2011 Se-75 -1.12E-01 1.57E+00 5.30E+00 MU 290634001 11/16/2011 Th-228 1.48E+00 3.33E+00 8.OOE+00 MU 290634001 11/16/2011 Th-230 -5.12E+00 4.44E+00 1.02E+01 MU 290634001 1!/16/20i 1 TI-208 2.08E+00 2.72E+00 3.96E+00 MU 290634001 11/16/2011 Zn-65 -1.85E+00 2.80E+00 8.68E+00 MU 290634001 11/16/2011 Zr-95 1.29E+00 2.38E+00 8.07E+00 MU 279331001 5/24/2011 Ac-228 5.89E+00 1.24E+01 3.81E+01 MU 279331001 5/24/2011 Ag-108m - 1.19E+00 1.95E+00 5.99E+00 MU 279331001 5/24/2011 Ag-110m -4.43E+00 2.5 1E+00 6.57E+00 MU 279331001 5/24/2011 Ba-140 2.11E+00 2.01E+01 6.75E+01 MU 279331001 5/24/2011 Be-7 -1.48E+01 2.91E+01 9.01E+01 MU 279331001 5/24/2011 Bi-214 1.24E+01 9.57E+00 1.99E+01 MU 279331001 5/24/2011 Ce-141 -9. 1OE+00 6.99E+00 2.09E+01 MU 279331001 5/24/2011 Ce-144 -2.06E+0 I 1.35E+01 3.98E+01 MU 279331001 5/24/2011 Co-57 -6.70E-01 1.78E+00 5.93E+00 MU 279331001 5/24/2011 Co-58 5.54E+00 3.1 OE+00 1.07E+01 MU 279331001 5/24/2011 Co-60 1.17E+00 2.52E+00 8.48E+00 MU 279331001 5/24/2011 Cr-51 -2.08E+0 1 3.98E+01 1.26E+02 MU 279331001 5/24/2011 Cs-134 1.91E+00 2.87E+00 9.88E+00 MU 279331001 5/24/2011 Cs-137 5.95E-01 2.25E+00 7.66E+00 MU 279331001 5/24/2011 Fe-59 1.59E+01 9.02E+00 3.09E+01 MU 279331001 5/24/2011 1-131 -1.15E+00 4.12E+01 1.34E+02 MU 279331001 5/24/2011 K-40 1.27E+03 1.05E+02 4.06E+01 MU 279331001 5/24/2011 La-140 2.11 E+00 2.01E+01 6.75E+01 MU 279331001 5/24/2011 Mn-54 3.66E+00 2.79E+00 9.59E+00 MU 279331001 5/24/2011 Nb-95 3.5 1E+00 3.00E+00 1.05E+01 MU 279331001 5/24/2011 Pb-212 1.45E+00 6.14E+00 1.54E+01 MU 279331001 5/24/2011 Pb-214 1.18E+01 6.48E+00 2.04E+01 MU 279331001 5/24/2011 Ra-226 1.24E+01 9.57E+00 1.99E+01 MU 279331001 5/24/2011 Ru-103 2.08E+00 3.41 E+00 1.13E+01 MU 279331001 5/24/2011 Ru-106 1.33E+01 1.98E+01 6.86E+0 I MU 279331001 5/24/2011 Sb-124 1.98E+01 8.61E+00 3.15E+01 MU 279331001 5/24/2011 Sb-125 5.17E+00 6.45E+00 2.15E+01 MU 279331001 5/24/2011 Se-75 -1.90E+00 3.66E+00 1.17E+01 MU 279331001 5/24/2011 Th-228 1.45E+00 6.14E+00 1.54E+01 MU 279331001 5/24/2011 Th-230 1.24E+01 9.57E+00 1.99E+01 MU 279331001 5/24/2011 TI-208 3.19E+00 2.90E+00 9.86E+00 MU 279331001 5/24/2011 Zn-65 -8.87E+00 7.37E+00 2.08E+01 MU 279331001 5/24/2011 Zr-95 7.07E+00 5.90E+00 2.05E+01 MU 290632001 11/15/2011 Ac-228 -3.84E+01 2.36E+01 5.18E+01 MU 290632001 11/15/2011 Ag-108m 9.23E+00 3.95E+00 1.16E+01 MU 290632001 11/15/2011 Ag-ll0m -8.69E+00 4.44E+00 1.21E+01 178

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

MU MU MU 09 09 09 290632001 290632001 290632001 11/15/2011 11/15/2011 11/15/2011 Ba-140 Be-7 Bi-214

-2.17E+01

-2.16E+01

-1.04E+01 1.46E+01 4.11E+01 1.15E+01 3.92E+01 1.29E+02 2.93E+01 U

U U

I 1.81E+00 7.32E+00 2.36E+01 U U

MU 09 290632001 11/15/2011 Ce-141 MU -9.38E+00 2.03E+01 6.43E+01 U 09 290632001 11/15/2011 Ce-144 11/15/2011 2.70E+00 2.62E+00 8.44E+00 U MU 09 290632001 Co-57 MU 290632001 11/15/2011 3.01E+00 4.50E+00 1.49E+01 U 09 Co-58 MU MU MU 09 09 09 290632001 290632001 290632001 11/15/2011 11/15/2011 11/15/2011 Co-60 Cr-51 Cs-134

-1.56E+00 2.69E+01

-3.07E+00 4.12E+00 4.89E+01 4.7 1E+00 1.32E+01 1.62E+02 1.48E+01 U U

U I I

MU 290632001 -7.80E+00 6.42E+00 1.55E+01 U 09 11/15/2011 Cs-137 MU 11/15/2011 1.33E+01 1.04E+01 3.5 1E+01 U 09 290632001 Fe-59 MU 11/15/2011 1-131 -1.01E+01 2.91 E+0 1 7.36E+01 U 09 290632001 MU 290632001 11/15/2011 K-40 1.14E+03 1.24E+02 1.37E+02 I

09 MU 09 290632001 11/15/2011 La-140 -2.17E+01 1.46E+01 3.92E+01 MU 09 290632001 11/15/2011 Mn-54 -1.18E+00 4.17E+00 1.34E+01 MU 0.9 290632001 11/15/2011 Nb-95 -6.77E+00 5.04E+00 1.49E+01 MU MU MU 09 09 09 290632001 290632001 290632001 11/15/2011 11/15/2011 11/15/2011 Pb-212 Pb-214 Ra-226 5.90E+00 6.79E+00

-1.04E+01 1.05E+01 1.13E+01 1.15E+01 2.03E+01 3.OOE+01 2.93E+01 I

MU MU MU 09 09 09 290632001 290632001 290632001 11/15/2011 11/15/2011 11/15/2011 Ru-103 Ru-106 Sb-124

-3.65E+00

-3.21E+01

-2.56E+01 5.13E+00 3.78E+01 2.26E+01 1.58E+01 1.20E+02 3.43E+01 I

MU 09 290632001 11/15/2011 Sb-125 9. 1OE+00 1.01E+01 3.28E+01 MU 09 290632001 11/15/2011 Se-75 -5.01E+00 4.88E+00 1.54E+01 MU 09 290632001 11/15/2011 Th-228 5.90E+00 1.05E+01 2.03E+01 MU 09 290632001 11/15/2011 Th-230 -1.04E+01 1.15E+0I 2.93E+01 MU 09 290632001 11/15/2011 TI-208 -3.98E+00 5.62E+00 1.53E+01 MU 09 290632001 11/15/2011 Zn-65 -1.03E+00 9.20E+00 3.05E+01 MU 09 290632001 11/15/2011 Zr-95 1.60E+01 8.98E+00 2.88E+01 MU MU MU 56 56 56 279332002 279332002 279332002 6/1/2011 6/1/2011 6/1/2011 Ac-228 Ag-108m Ag-i 10m 1.46E+01

-2.92E+00

-3.24E+00 1.12E+01 1.94E+00 2.66E+00 3.77E+01 5.54E+00 7.72E+00 I

MU 56 279332002 6/1/2011 Ba-140 5.09E+00 1.24E+01 4.22E+01 MU MU MU 56 56 56 279332002 279332002 279332002 6/1/2011 6/1/2011 6/1/2011 Be-7 Bi-214 Ce-141 3.42E+01 1.59E+01 5.65E-01 2.84E+01 8.63E+00 4.96E+00 9.67E+01 2.04E+01 1.65E+01 I

MU MU 56 56 279332002 279332002 6/1/2011 6/1/2011 Ce-144 Co-57 1.49E+01 9.57E-02 1.43E+01 1.68E+00 4.77E+01 5.61E+00 I a

MU 56 279332002 6/1/2011 Co-58 -2.46E+00 2.73E+00 8.OOE+00 MU 56 279332002 6/1/2011 Co-60 4.OOE+00 2.77E+00 9.87E+00 MU 56 279332002 6/1/2011 Cr-51 -2.87E+0 1 3.22E+01 9.59E+01 MU 56 279332002 6/1/2011 Cs-134 3.85E+00 3.39E+00 1.15E+01 MU 56 279332002 6/1/2011 Cs-137 4.62E+00 2.70E+00 9.12E+00 MU MU MU 56 56 279332002 279332002 6/1/2011 6/1/2011 Fe-59 1-131

-3.74E+00 1.41E+01 1.50E+03 7.56E+00 2.30E+01 1.18E+02 2.43E+01 7.53E+01 5.50E+01 I

56 279332002 6/1/2011 K-40 MU MU MU 56 56 56 279332002 279332002 279332002 6/1/2011 6/1/2011 6/1/2011 La-140 Mn-54 Nb-95 5.09E+00 3.62E-01 8.10E-01 1.24E+01 2.36E+00 3.22E+00 4.22E+01 7.78E+00 1.07E+01 U

U U

U MU U 56 279332002 6/1/2011 Pb-212 7.91E+00 8.15E+00 1.63E+01 I

179 1

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

MU 56 279332002 6/1/2011 Pb-214 9.OOE+00 5.89E+00 1.87E+01 U MU 56 279332002 6/1/2011 Ra-226 1.59E+01 8.63E+00 2.04E+01 U MU 56 279332002 6/1/2011 Ru-103 2.33E+00 3.50E+00 1.20E+01 U MU 56 279332002 6/1/2011 Ru-106 9.87E-01 1.95E+01 6.47E+01 U MU 56 279332002 6/1/2011 Sb-124 -8.21E-01 8.58E+00 2.7 1E+01 U MU 56 279332002 6/1/2011 Sb-125 1.12E+00 6.02E+00 2.04E+0 1 U MU 56 279332002 6/1/2011 Se-75 1.34E+00 3.11 E+00 1.02E+01 U MU 56 279332002 6/1/2011 Th-228 7.9 1E+00 8.15E+00 1.63E+01 U MU 56 279332002 6/1/2011 Th-230 1.59E+01 8.62E+00 2.04E+0 1 U MU 56 279332002 6/1/2011 TI-208 5.40E+00 2.98E+00 9.60E+00 U MU 56 279332002 6/1/2011 Zn-65 7.88E+00 7.5 1E+00 2.60E+0 I U MU 56 279332002 6/1/2011 Zr-95 2.66E+00 5.14E+00 1.74E+01 U MU 56 290634002 11/16/2011 Ac-228 1.47E+01 1.03E+01 2.34E+01 U MU 56 290634002 11/16/2011 Ag-108m -2.01E-01 1.20E+00 3.90E+00 U MU 56 290634002 11/16/2011 Ag-110m -4.88E-01 2.08E+00 5.19E+00 U MU 56 290634002 11/16/2011 Ba-140 1.21E+00 4.20E+00 1.41E+01 U MU 56 290634002 11/16/2011 Be-7 8.25E+01 2.45E+01 4.37E+01 MU 56 290634002 11/16/2011 Bi-214 1.05E+01 5.40E+00 9.80E+00 UI MU 56 290634002 11/16/2011 Ce-141 9.61E-01 3.73E+00 9.72E+00 U MU 56 290634002 11/16/2011 Ce-144 -3.18E+00 8.44E+00 2.69E+01 U MU 56 290634002 11/16/2011 Co-57 -3.48E-01 1.13E+00 3.62E+00 U MU 56 290634002 11/16/2011 Co-58 2.97E+00 1.78E+00 5.79E+00 U MU 56 290634002 11/16/2011 Co-60 4.89E-01 2.36E+00 5.88E+00 U MU 56 290634002 11/16/2011 Cr-51 -1.51E+01 1.79E+01 5.71 E+0 I U MU 56 290634002 11/16/2011 Cs-134 2.68E+00 1.86E+00 6.12E+00 U MU 56 290634002 11/16/2011 Cs-137 -4.39E+00 2.48E+00 5.61E+00 U MU 56 290634002 11/16/2011 Fe-59 -2.92E+00 3.99E+00 1.24E+01 U MU 56 290634002 11/16/2011 1-131 -2.90E+00 7.85E+00 2.56E+01 U MU 56 290634002 11/16/2011 K-40 1.31E+03 7.80E+01 4.45E+01 MU 56 290634002 11/16/2011 La-140 1.21E+00 4.20E+00 1.41E+01 U MU 56 290634002 11/16/2011 Mn-54 -8.84E-01 1.47E+00 4.71E+00 U MU 56 290634002 11/16/2011 Nb-95 3.22E+00 1.93E+00 6.24E+00 U MU 56 290634002 11/16/2011 Pb-212 1.04E+01 5.22E+00 9.62E+00 UI MU 56 290634002 11/16/2011 Pb-214 2.70E+00 5.36E+00 1.16E+01 U MU 56 290634002 11/16/2011 Ra-226 1.05E+01 5.40E+00 9.80E+00 UI MU 56 290634002 11/16/2011 Ru-103 8.89E-01 1.85E+00 6.05E+00 U MU 56 290634002 11/16/2011 Ru-106 1.88E+01 1.38E+01 4.38E+01 U MU 56 290634002 11/16/2011 Sb-124 4.13E+00 3.61E+06 1.24E+01 U MU 56 290634002 11/16/2011 Sb-125 2.66E+00 3.75E+00 1.24E+01 U MU 56 290634002 11/16/2011 Se-75 -7.98E-01 1.86E+00 6.16E+00 U MU 56 290634002 11/16/2011 Th-228 1.04E+01 5.22E+00 9.62E+00 UI MU 56 290634002 11/16/2011 Th-230 1.05E+01 5.39E+00 9.80E+00 UI MU 56 290634002 11/16/20 11 TI-208 1.34E+00 2.69E+00 4.45E+00 U MU 56 290634002 11/16/2011 Zn-65 -3.17E+00 3.61E+00 1.10E+01 U MU 56 290634002 11/16/2011 Zr-95 -2.04E+00 3.12E+00 1.01E+01 U MU 59 279331002 5/24/2011 Ac-228 1.87E+01 1.44E+01 4.49E+01 U MU 59 279331002 5/24/2011 Ag-108m 9.27E-01 2.14E+00 7.13E+00 U MU 59 279331002 5/24/2011 Ag-i 10m 2.01E+00 2.84E+00 9.8 1E+00 U MU 59 279331002 5/24/2011 Ba-140 -1.66E+01 2.15E+01 6.07E+01 U MU 59 279331002 5/24/2011 Be-7 1.04E+02 4.53E+01 1.42E+02 U MU 59 279331002 5/24/2011 Bi-214 6.07E+00 7.39E+00 2.46E+0 I U 180

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

MU MU MU 59 59 59 279331002 279331002 279331002 5/24/2011 5/24/2011 5/24/2011 Ce-141 Ce-144 Co-57 7.90E+00

-3.42E+00

-6.07E+00 8.07E+00 1.68E+01 2.53E+00 2.66E+01 5.23E+01 6.04E+00 U

U U

I U

MU 59 279331002 5/24/2011 Co-58 9.46E-0 1 3.84E+00 1.29E+01 U MU 59 279331002 5/24/2011 Co-60 -1.80E+00 3.17E+00 9.78E+00 U MU 59 279331002 5/24/2011 Cr-51 -6.25E+01 4.96E+01 1.47E+02 U MU 59 279331002 5/24/2011 Cs-134 -2.99E+00 3.36E+00 1.00E+01 U MU MU MU 59 59 59 279331002 279331002 279331002 5/24/2011 5/24/2011 5/24/2011 Cs-137 Fe-59 1-131

-1.21E+01 1.97E+00 3.74E+01 4.57E+00 1.13E+01 6.45E+01 9.58E+00 3.82E+01 2.17E+02 U

U U

I MU MU MU 59 59 59 279331002 279331002 279331002 5/24/2011 5/24/2011 5/24/2011 K-40 La-140 Mn-54 1.75E+03

-1.66E+01 5.76E+00 1.33E+02 2.15E+01 3.37E+00 7.27E+01 6.07E+01 1.14E+01 I

MU 59 279331002 5/24/2011 Nb-95 2.25E+00 4.26E+00 1.45E+01 MU MU MU 59 59 59 279331002 279331002 279331002 5/24/2011 5/24/2011 5/24/2011 Pb-212 Pb-214 Ra-226 1.56E+00 1.25E+01 6.07E+00 6.52E+00 7.82E+00 7.39E+00 1.72E+01 2.5 1E+01 2.46E+01 U

MU MU MU, 59 59 59 279331002 279331002 279331002 5/24/2011 5/24/2011 5/24/2011 Ru-103 Ru-106 Sb-124

-1.77E+00

-1.74E+01

-1.34E+01 4.40E+00 2.35E+01 8.91 E+00 1.37E+01 7.35E+01 1.92E+01 I

MU MU MU 59 59 59 279331002 279331002 279331002 5/24/2011 5/24/2011 5/24/2011 Sb-125 Se-75 Th-228

-1.21E+00 4.02E+00 1.56E+00 7.33E+00 4.04E+00 6.52E+00 2.37E+01 1.38E+01 1.72E+01 I

MU 59 279331002 5/24/2011 Th-230 6.07E+00 7.39E+00 2.46E+0 1 MU 59 279331002 5/24/2011 TI-208 6.48E+00 3.73E+00 1.23E+01 MU 59 279331002 5/24/2011 Zn-65 -1.63E+01 8.35E+00 2.05E+01 MU 59 279331002 5/24/2011 Zr-95 7.49E+00 7.67E+00 2.64E+01 MU 59 290632002 11/15/2011 Ac-228 2.77E+01 2.29E+01 6.76E+0 I MU 59 290632002 11/15/2011 Ag-108m -2.57E+00 3.83E+00 1.18E+01 MU 59 290632002 11/15/2011 Ag-i 10m -2.40E+00 4.34E+00 1.38E+01 MU 59 290632002 11/15/2011 Ba-140 -9.76E+00 1.77E+01 4.74E+01 MU 59 290632002 11/15/2011 Be-7 9.09E+01 5.14E+01 1.66E+02 MU 59 290632002 11/15/2011 Bi-214 3.77E+01 2.09E+01 3.69E+01 MU 59 290632002 11/15/2011 Ce-141 -4.49E+01 1.61E+01 2.86E+01 MU 59 290632002 11/15/2011 Ce-144 -1.52E+01 2.61E+01 8.11 E+01 MU 59 290632002 11/15/2011 Co-57 -1.96E+00 3.44E+00 1.08E+01 MU 59 290632002 11/15/2011 Co-58 1.85E+00 4.86E+00 1.59E+01 MU 59 290632002 11/15/2011 Co-60 5.54E+00 4.62E+00 1.55E+01 MU 59 290632002 11/15/2011 Cr-51 1.56E+01 6.15E+01 2.02E+02 MU 59 290632002 11/15/2011 Cs-134 8.43E-02 5.32E+00 1.72E+01 MU 59 290632002 11/15/2011 Cs-137 4.25E+00 4.60E+00 1.53E+01 MU 59 290632002 11/15/2011 Fe-59 1.72E+00 1.09E+01 3.63E+01 MU 59 290632002 11/15/2011 1-131 6.84E+00 2.67E+01 8.7 1E+01 MU 59 290632002 11/15/2011 K-40 1.57E+03 1.60E+02 1.42E+02 MU MU 59 59 290632002 290632002 11/15/2011 11/15/2011 La- 140 Mn-54

-9.76E+00 3.4 1E+00 1.77E+01 4.79E+00 5.67E+00 4.74E+0 I 1.57E+01 1.85E+01 U

U U

I MU 59 290632002 11/15/2011 Nb-95 7. 1OE+00 MU MU MU 59 59 59 290632002 290632002 290632002 11/15/2011 11/15/2011 11/15/2011 Pb-212 Pb-214 Ra-226 3.54E+01 8.12E+00 3.77E+01 2.06E+01 1.82E+01 2.09E+01 3.99E+01 3.73E+01 3.69E+01 U

U UI I

MU 59 290632002 11/15/2011 Ru-103 1.08E+01 6.27E+00 2.02E+01 U I

181 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

MU 59 290632002 11/15/2011 Ru-106 1.98E+01 4.12E+01 1.38E+02 U MU 59 290632002 11/15/2011 Sb-124 -1.05E+01 1.29E+01 3.96E+01 U MU 59 290632002 11/15/2011 Sb-125 2.37E+00 1.18E+01 3.82E+01 U MU 59 290632002 11/15/2011 Se-75 -4.09E+00 6.14E+00 1.97E+01 U MU 59 290632002 11/15/2011 Th-228 3.54E+01 2.06E+01 3.99E+01 U MU 59 290632002 11/15/2011 Th-230 3.77E+01 2.09E+01 3.69E+01 UI MU 59 290632002 11/15/2011 TI-208 1.80E+01 1.02E+01 1.33E+01 U1 MU 59 290632002 11/15/2011 Zn-65 -5.98E+00 1.02E+01 3.25E+01 U MU 59 290632002 11/15/2011 Zr-95 2.48E+00 9.38E+00 3.08E+01 U 182

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

SE 279326001 6/1/2011 Ac-228 1.53E+03 1.69E+02 1.74E+02 SE 279326001 6/1/2011 Ag-108m -7.61E-02 1.08E+01 3.76E+01 U SE 279326001 6/1/2011 Ag-110m -1.28E+01 1.37E+01 4.54E+01 U SE 279326001 6/1/2011 Ba-140 3.18E+01 7.11E+01 2.1OE+02 U SE 279326001 6/1/2011 Be-7 1.43E+02 1.35E+02 4.70E+02 U SE 279326001 6/1/2011 Bi-214 9.73E+02 8.08E+01 7.91E+01 SE 279326001 6/1/2011 Ce-141 2.73E+01 3.01E+01 1.08E+02 U SE SE SE 279326001 279326001 279326001 6/1/2011 6/1/2011 6/1/2011 Ce-144 Co-57 Co-58

-7.82E+0 1 1.38E+01

-2.87E+01 8.OOE+01 9.79E+00 1.71E+01 2.74E+02 3.50E+01 4.90E+01 U

U U

I SE SE SE SE 279326001 279326001 279326001 279326001 6/1/2011 6/1/2011 6/1/2011 6/1/2011 Co-60 Cr-51 Cs-134 Cs-137

-1.97E+01 2.56E+01 0.OOE+00 1.05E+00 1.47E+01 1.85E+02 3.30E+01 1.47E+01 4.29E+0 1 6.67E+02 7.50E+01 5.15E+01 U

U U

U I

SE SE SE 279326001 279326001 279326001 6/1/2011 6/1/2011 6/1/2011 Fe-59 1-131 K-40

-7.23E+01

-1.81E+01 1.37E+04 4.25E+01 1.09E+02 8.84E+02 1.22E+02 3.83E+02 4.22E+02 U

U U SE SE SE 279326001 279326001 279326001 6/1/2011 6/1/2011 6/1/2011 La-140 Mn-54 Nb-95 3.18E+01 3.23E+01

-1.53E+00 7.11E+01 1.81E+01 2.12E+01

2. 1OE+02 5.42E+01 6.3 1E+01 U

U U

I SE SE SE SE 279326001 279326001 279326001 279326001 6/1/2011 6/1/2011 6/1/2011 6/1/2011 Pb-212 Pb-214 Ra-226 Ru-103 1.73E+03 1.07E+03 9.73E+02

-8.69E+00 1.03E+02 1.01E+02 8.08E+0 1 1.85E+01 7.60E+01 9.56E+01 7.91 E+0 1 6.19E+01 U N

SE 279326001 6/1/2011 Ru-106 -1.13E+02 1.05E+02 3.43E+02 U SE 279326001 6/1/2011 Sb-124 6.58E+01 3.79E+01 1.32E+02 U SE 279326001 6/1/2011 Sb-125 2.06E+00 3.43E+01 1.20E+02 U SE 279326001 6/1/2011 Se-75 5.47E+00 1.70E+01 6.06E+01 U SE 279326001 6/1/2011 Th-228 1.73E+03 1.03E+02 7.60E+0 1 SE 279326001 6/1/2011 Th-230 9.73E+02 7.66E+01 7.91 E+0 1 SE SE SE 279326001 279326001 279326001 6/1/2011 6/1/2011 6/1/2011 TI-208 Zn-65 Zr-95 4.68E+02

-6.81 E+00

-2.02E+01 3.63E+01 3.56E+01 3.30E+01 4.22E+01 1.04E+02 1.1OE+02 U

U U

SE 290630001 11/16/2011 2.25E+03 2.09E+02 2.42E+02 I

Ac-228 SE 290630001 11/16/2011 Ag-108m -8.48E+00 1.50E+01 5.09E+01 U SE 290630001 11/16/2011 Ag-110m 1.01E+00 1.77E+01 6.16E+01 U SE 290630001 11/16/2011 Ba-140 -1.02E+02 1.1 7E+02 2.93E+02 U SE SE SE 290630001 290630001 290630001 11/16/2011 11/16/2011 11/16/2011 Be-7 Bi-214 Ce-141 4.96E+0 1 1.55E+03 3.98E+01 1.84E+02 1.12E+02 4.92E+01 6.44E+02 1.29E+02 1.72E+02 U

U I

SE SE SE 290630001 290630001 290630001 11/16/2011 11/16/2011 11/16/2011 Ce-144 Co-57 Co-58 4.97E+01

-1.39E+01

-3.33E+01 1.21E+02 1.46E+01 2.24E+01 4.07E+02 4.94E+01 6.55E+01 U

U U

I SE 290630001 11/16/2011 7.60E+00 1.82E+01 6.12E+01 U I

Co-60 SE 290630001 11/16/2011 Cr-51 -4.50E+01 2.74E+02 9.37E+02 U SE 290630001 11/16/2011 Cs-134 4.97E+01 2.8 1E+01 9.30E+01 U SE 290630001 11/16/2011 Cs-137 -1.85E+01 2.03E+01 6.65E+01 U SE SE SE 290630001 290630001 290630001 11/16/2011 11/16/2011 11/16/2011 Fe-59 1-131 K-40 2.53E+01

-1.07E+02 1.39E+04 5.12E+01 1.78E+02 9.27E+02 I.53E+02 6.17E+02 5.08E+02 U

U I SE 290630001 11/16/2011 La-140 - 1.02E+02 1.17E+02 2.93E+02 U

'N 183 11

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

SE 02 290630001 11/16/2011 Mn-54 -2.87E+01 2.15E+01 6.49E+01 SE 02 290630001 11/16/2011 Nb-95 4.5 1E+01 2.95E+01 9.92E+01 SE 02 290630001 11/16/2011 Pb-212 2.70E+03 1.54E+02 1.1 OE+02 SE 02 290630001 11/16/2011 Pb-214 1.79E+03 1.37E+02 1.23E+02 SE 02 290630001 11/16/2011 Ra-226 1.55E+03 1.12E+02 1.29E+02 SE 02 290630001 11/16/2011 Ru-103 -2.56E+01 2.5 1E+0I 8.04E+01 SE 02 290630001 11/16/2011 Ru-106 -4.61E+01 1.50E+02 5.17E+02 SE 02 290630001 11/16/2011 Sb-124 -4.95E+01 4.28E+01 1.19E+02 SE 02 290630001 11/16/2011 Sb-125 -1.16E+01 4.55E+01 1.58E+02 SE 02 290630001 11/16/2011 Se-75 -1.68E+01 2.52E+01 8.24E+01 SE 02 290630001 11/16/2011 Th-228 2.70E+03 1.54E+02 1.10E+02 SE 02 290630001 11/16/2011 Th-230 1.55E+03 1.05E+02 1.29E+02 SE 02 290630001 11/16/2011 TI-208 6.62E+02 5.41E+01 6.13E+01 SE 02 290630001 11/16/2011 Zn-65 1.19E+01 4.79E+01 1.40E+02 SE 02 290630001 11/16/2011 Zr-95 8.8 1E+01 4.73E+01 1.57E+02 SE 07 279329001 5/24/2011 Ac-228 3.41E+02 8.99E+01 1.61E+02 SE 07 279329001 5/24/2011 Ag-108m -8.40E+00 9.61E+00 3.01E+01 SE 07 279329001 5/24/2011 Ag-i 10m -2.62E-01 1.27E+01 4.36E+01 SE 07 279329001 5/24/2011 Ba-140 -5.05E+01 7.12E+01 2.07E+02 SE 07 279329001 5/24/2011 Be-7 - 1.16E+02 1.48E+02 4.94E+02 SE 07 279329001 5/24/2011 Bi-214 2.80E+02 6.13E+01 8.82E+01 SE 07 279329001 5/24/2011 Ce- 141 -1.43E+01 2.92E+01 1.01E+02 SE 07 279329001 5/24/2011 Ce-144 -1.06E+02 6.62E+01 2.13E+02 SE 07 279329001 5/24/2011 Co-57 1.33E+00 7.24E+00 2.68E+01 SE 07 279329001 5/24/2011 Co-58 1.37E+01 1.83E+01 6.33E+01 SE 07 279329001 5/24/2011 Co-60 2.02E+01 1.55E+01 5.42E+01 SE 07 279329001 5/24/2011 Cr-51 1.45E+02 2.03E+02 7.09E+02 SE 07 279329001 5/24/2011 Cs-134 1.03E+01 1.58E+01 5.46E+01 SE 07 279329001 5/24/2011 Cs-137 -1.62E+01 1.37E+01 4.21 E+01 SE 07 279329001 5/24/2011 Fe-59 3.01E+01 4.65E+01 1.63E+02 SE 07 279329001 5/24/2011 1-131 7.79E+01 2.36E+02 8.13E+02 SE 07 279329001 5/24/2011 K-40 1.59E+04 9.26E+02 2.52E+02 SE 07 279329001 5/24/2011 La- 140 -5.05E+01 7.11E+01 2.07E+02 SE 07 279329001 5/24/2011 Mn-54 -5.OOE+00 1.34E+01 4.39E+01 SE 07 279329001 5/24/2011 Nb-95 -1.36E+01 1.96E+01 6.29E+01 SE 07 279329001 5/24/2011 Pb-212. 5.3 1E+02 6.13E+01 5.8 1E+01 SE 07 279329001 5/24/2011 Pb-214 3.07E+02 5.5 1E+01 8.11E+01 SE 07 279329001 5/24/2011 Ra-226 2.80E+02 6.13E+01 8.82E+01 SE 07 279329001 5/24/2011 Ru-103 1.31E+01 2.06E+01 7.35E+01 SE 07 279329001 5/24/2011 Ru-106 -3.86E+01 1.22E+02 4.14E+02 SE 07 279329001 5/24/2011 Sb-124 6.2 1E+00 2.84E+01 9.58E+01 SE 07 279329001 5/24/2011 Sb-125 2.70E+01 3.37E+01 1.15E+02 SE 07 279329001 5/24/2011 Se-75 2.61E+01 1.74E+01 5.99E+01 SE 07 279329001 5/24/2011 Th-228 5.3 1E+02 6.13E+01 5.81E+01 SE 07 279329001 5/24/2011 Th-230 2.80E+02 6.09E+0 1 8.82E+01 SE 07 279329001 5/24/2011 TI-208 1.65E+02 2.86E+01 4.02E+01 SE 07 279329001 5/24/2011 Zn-65 -3.32E+00 3.84E+01 1.12E+02 SE 07 279329001 5/24/2011 Zr-95 -8.29E+01 3.91E+01 9.86E+01 SE 07 290631001 11/15/2011 Ac-228 4.26E+02 1.02E+02 1.89E+02 SE 07 290631001 11/15/2011 Ag-108m -1.19E+0I 1.31E+01 4.17E+01 SE 07 290631001 11/15/2011 Ag-110m -7.29E+00 1.40E+01 4.55E+01 184

Seabrook REMP Summary of 2011 Data I

SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

SE 07 290631001 11/15/2011 Ba-140 -8.22E+01 8.73E+01 2.60E+02 SE SE SE 07 07 07 290631001 290631001 290631001 11/15/2011 11/15/2011 11/15/2011 Be-7 Bi-214 Ce-141

-1.32E+01 4.53E+02 1.40E+01 1.51E+02 6.83E+01 3.39E+01 5.26E+02 8.73E+01 1.24E+02 I

SE 07 290631001 11/15/2011 Ce-144 1.32E+02 8.89E+01 3.18E+02 SE 07 290631001 11/15/2011 Co-57 1.74E+01 1.14E+01 3.87E+01 SE SE SE 07 07 07 290631001 290631001 290631001 11/15/2011 11/15/2011 11/15/2011 Co-58 Co-60 Cr-51

-2.42E+01 7.55E+00 1.42E+01 1.85E+01 1.54E+01 2.17E+02 5.53E+01 5.24E+01 7.66E+02 I

SE 07 290631001 11/15/2011 Cs-134 1.27E+01 1.89E+01 6.58E+01 SE 07 290631001 11/15/2011 Cs-137 -5.18E+00 1.46E+01 4.81 E+01 SE 07 290631001 11/15/2011 Fe-59 -8.80E+01 5.85E+01 1.71E+02 SE 07 290631001 11/15/2011 1-131 3.20E+02 1.77E+02 6.03E+02 SE 07 290631001 11/15/2011 K-40 1.64E+04 1.01E+03 5.06E+02 SE SE SE 07 07 07 290631001 290631001 290631001 11/15/2011 11/15/2011 11/15/2011 La- 140 Mn-54 Nb-95

-8.22E+01 1.32E+01 3.32E+01 8.72E+01 1.45E+01 2.25E+01 2.60E+02 5.05E+01 7.75E+01 SE 07 290631001 11/15/2011 Pb-212 4.1OE+02 4.94E+01 7.99E+01 SE 07 290631001 11/15/2011 Pb-214 3.25E+02 7.81 E+0 1 9.08E+01 SE 07 290631001 11/15/2011 Ra-226 4.53E+02 6.83E+01 8.73E+01 SE 07 290631001 11/15/2011 Ru-103 1.68E+01 1.98E+01 7.02E+01 SE 07 290631001 11/15/2011 Ru-106 i .25E+02 1.45E+02 5.OOE+02 SE 07 290631001 11/15/2011 Sb-124 -1.06E+02 4.62E+01 8.60E+01 SE 07 290631001 11/15/2011 Sb-125 -3.2 1E+01 4.25E+01 1.38E+02 SE SE SE 07 07 07 290631001 290631001 290631001 11/15/2011 11/15/2011 11/15/2011 Se-75 Th-228 Th-230

-1.54E+01

4. 1OE+02 4.53E+02 2.22E+01 4.94E+01 6.72E+01 7.27E+01 7.99E+01 8.73E+01 I

SE SE SE 07 07 07 290631001 290631001 290631001 11/15/2011 11/15/2011 11/15/2011 TI-208 Zn-65 Zr-95 1.20E+02 5.53E+00

-2.55E+01 2.48E+01 4.88E+01 3.36E+01 5.02E+01 1.41E+02 1.09E+02 U

U U

N SE 08 279329002 5/24/2011 Ac-228 4.44E+02 1.25E+02 2.08E+02 SE 08 279329002 5/24/2011 Ag-108m -6.72E+00 1.12E+01 3.67E+01 U SE 08 279329002 5/24/2011 Ag-I 10m 3.54E+00 1.47E+01 5.13E+0 1 U SE 08 279329002 5/24/2011 Ba-140 -2.25E+02 1.21E+02 2.53E+02 U SE SE SE 08 08 08 279329002 279329002 279329002 5/24/2011 5/24/2011 5/24/2011 Be-7 Bi-214 Ce-141

-6.44E+01 2.83E+02

-1.87E+01 1.56E+02 8.89E+01 3.2 1E+01 5.11 E+02 1.69E+02 1.07E+02 U

UI U

3 SE 08 279329002 5/24/2011 Ce-144 1.35E+01 6.46E+01 2.28E+02 U SE 08 279329002 5/24/2011 Co-57 -1.54E+01 9.60E+00 2.93E+01 U SE 08 279329002 5/24/2011 Co-58 -2.OOE+01 2.09E+01 6.46E+01 U SE 08 279329002 5/24/2011 Co-60 1.63E+01 1.80E+01 6.32E+01 U SE 08 279329002 5/24/2011 Cr-51 3.03E+02 2.20E+02 7.77E+02 U SE 08 279329002 5/24/2011 Cs-134 3.87E+01 2.1OE+01 7.22E+01 U SE 08 279329002 5/24/2011 Cs-137 9.54E+00 1.57E+01 5.53E+01 U SE SE 08 08 279329002 279329002 5/24/2011 5/24/2011 Fe-59 1-131 5.63E+01

-2.14E+02 6.12E+01 2.70E+02 2.16E+02 8.72E+02 U

U U SE SE SE 08 08 08 279329002 279329002 279329002 5/24/2011 5/24/2011 5/24/2011 K-40 La-140 Mn-54 2.28E+04

-2.25E+02 7.5 1E+00 1.35E+03 1.21E+02 1.75E+01 3.61E+02 2.53E+02 6.01E+01 U

U I

SE SE 08 08 279329002 279329002 5/24/2011 5/24/2011 Nb-95 Pb-212

-3.85E+01 3.56E+02 2.3 1E+01 4.59E+01 6.44E+0 1 8.18E+01 U

a 185 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

SE 08 279329002 5/24/2011 Pb-214 3.98E+02 6.34E+01 7.99E+0 1 SE 08 279329002 5/24/2011 Ra-226 2.83E+02 8.89E+01 1.69E+02 UI SE 08 279329002 5/24/2011 Ru-103 -5.13E+01 2.43E+01 5.88E+01 U SE 08 279329002 5/24/2011 Ru-106 8.8 1E+01 1.32E+02 4.72E+02 U SE 08 279329002 5/24/2011 Sb- 124 6.72E+00 3.42E+01 1.1 5E+02 U SE 08 279329002 5/24/2011 Sb-125 -2.81 E+01 3.43E+01 1.1OE+02 U SE 08 279329002 5/24/2011 Se-75 -1.89E+01 1.73E+01 5.56E+01 U SE 08 279329002 5/24/2011 Th-228 3.56E+02 4.59E+01 8.18E+01 SE 08 279329002 5/24/2011 Th-230 2.83E+02 8.85E+01 1.69E+02 UI SE 08 279329002 5/24/2011 TI-208 1.68E+02 2.89E+01 4.17E+01 SE 08 279329002 5/24/2011 Zn-65 -1.26E+02 5.77E+01 1.47E+02 U SE 08 279329002 5/24/2011 Zr-95 -8.82E+00 4.OOE+01 1.35E+02 U SE 08 290631002 11/15/2011 Ac-228 2.93E+02 1.24E+02 3.53E+02 U SE 08 290631002 11/15/2011 Ag-108m 2.91E+00 1.25E+01 4.39E+01 U SE 08 290631002 11/15/2011 Ag- l10m 3.2 1E+01 1.60E+01 5.78E+01 U SE 08 290631002 11/15/2011 Ba-140 -3.OOE+01 4.78E+01 1.22E+02 U SE 08 290631002 11/15/2011 Be-7 4.42E+0 I 1.62E+02 5.65E+02 U SE 08 290631002 11/15/2011 Bi-214 3.40E+02 1.05E+02 2.16E+02 UI SE 08 290631002 11/15/2011 Ce-141 1.44E+01 3.47E+01 1.27E+02 U SE 08 290631002 11/15/2011 Ce-144 -5.25E+01 7.64E+01 2.65E+02 U SE 08 290631002 11/15/2011 Co-57 1.81E+00 9.19E+00 3.40E+01 U SE 08 290631002 11/15/2011 Co-58 6.79E+00 2.15E+01 7.46E+01 U SE 08 290631002 11/15/2011 Co-60 8.87E+00 2.32E+01 7.96E+01 U SE 08 290631002 11/15/2011 Cr-51 -2.17E+02 2.43E+02 8. 1OE+02 U SE 08 290631002 11/15/2011 Cs-134 1.97E-01 2.08E+01 7.09E+01 U SE 08 290631002 11/15/2011 Cs-137 -3.68E+01 1.66E+01 3.65E+01 U SE 08 290631002 11/15/2011 Fe-59 5.55E+01 5.63E+01 2.02E+02 U SE 08 290631002 11/15/2011 1-131 2.04E+02 1.66E+02 6.06E+02 U SE 08 290631002 11/15/2011 K-40 1.91E+04 1.20E+03 4.59E+02 SE 08 290631002 11/15/2011 La-140 -3.OOE+01 4.78E+01 1.22E+02 U SE 08 290631002 11/15/2011 Mn-54 -5.70E+00 1.71E+01 5.61 E+0 1 U SE 08 290631002 11/15/2011 Nb-95 4.14E+01 2.39E+01 8.50E+01 U SE 08 290631002 11/15/2011 Pb-212 3.19E+02 5.65E+01 1.09E+02 SE 08 290631002 11/15/2011 Pb-214 3.49E+02 7.16E+01 9.48E+01 SE 08 290631002 11/15/2011 Ra-226 3.40E+02 1.05E+02 2.16E+02 U1 SE 08 290631002 11/15/2011 Ru-103 2.25E+01 2.4 1E+01 8.53E+01 U SE 08 290631002 11/15/2011 Ru-106 -5.49E+00 1.39E+02 4.86E+02 U SE 08 290631002 11/15/2011 Sb-124 3.3 1E+01 4.70E+0 1 1.72E+02 U SE 08 290631002 11/15/2011 Sb-125 3.42E+01 4.07E+01 1.46E+02 U SE 08 290631002 11/15/2011 Se-75 3.36E+01 2.03E+01 7.09E+01 U SE 08 290631002 11/15/2011 Th-228 3.19E+02 5.65E+01 1.09E+02 SE 08 290631002 11/15/2011 Th-230 3.40E+02 1.05E+02 2.16E+02 UI SE 08 290631002 11/15/2011 TI-208 1.25E+02 2.77E+01 5.3 1E+01 SE 08 290631002 11/15/2011 Zn-65 -3.49E+0 I 5.13E+01 1.64E+02 U SE 08 290631002 11/15/2011 Zr-95 -3.07E+01 3.43E+01 1.05E+02 U SE 52 279326002 6/1/2011 Ac-228 2.57E+03 2.38E+02 2.18E+02 SE 52 279326002 6/1/2011 Ag-108m -1.56E+01 1.46E+01 4.53E+01 U SE 52 279326002 6/1/2011 Ag-ll10m 6.27E-01 1.81E+01 6.19E+01 U U-3 SE 52 279326002 6/1/2011 Ba-140 1.21E+02 7.67E+01 2.47E+02 U SE 52 279326002 6/1/2011 Be-7 2.83E+01 1.80E+02 6.35E+02 U SE 52 279326002 6/1/2011 Bi-214 1.55E+03 1.23E+02 1.1OE+02 186

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS U

SE 279326002 6/1/2011 Ce-141 2.26E-01 3.84E+01 1.37E+02 U SE 279326002 6/1/2011 Ce-144 -6.92E+01 1.05E+02 3.26E+02 U SE 279326002 6/1/2011 Co-57 5.20E+00 1.13E+01 4.13E+01 U SE 279326002 6/1/2011 Co-58 -4.06E+0 I 2.29E+01 6.27E+01 U SE 279326002 6/1/2011 Co-60 -1.59E+01 1.73E+01 5.30E+01 U SE 279326002 6/1/2011 Cr-51 1.52E+02 2.41E+02 8.29E+02 U U

I SE 279326002 6/1/2011 Cs-134 0.OOE+00 5.8 1E+01 1.00E+02 SE 279326002 6/1/2011 Cs-137 -3.27E+01 2.11 E+01 6.28E+01 U SE 279326002 6/1/2011 Fe-59 -4.15E+00 5.26E+01 1.79E+02 U SE 279326002 6/1/2011 1-131 1.85E+02 1.64E+02 5.55E+02 U SE 279326002 6/1/2011 K-40 1.43E+04 9.37E+02 5.50E+02 SE 279326002 6/1/2011 La-140 1.21E+02 7.66E+01 2.47E+02 U SE 279326002 6/1/2011 Mn-54 3.70E+00 2.05E+01 6.90E+0 I U SE 279326002 6/1/2011 Nb-95 2.44E+0 1 2.91E+01 8.68E+01 U SE 279326002 6/1/2011 Pb-212 2.43E+03 1.61E+02 9.17E+01 SE 279326002 6/1/2011 Pb-214 1.71E+03 1.28E+02 1.20E+02 SE 279326002 6/1/2011 Ra-226 1.55E+03 1.23E+02 1.1OE+02 SE 279326002 6/1/2011 Ru-103 -2.20E+01 2.28E+01 7.48E+01 U SE 279326002 6/1/2011 Ru-106 -2.32E+02 1.65E+02 5.04E+02 U SE 279326002 6/1/2011 Sb-124 6.02E+01 4.20E+01 1.49E+02 U SE 279326002 6/1/2011 Sb-125 -8.44E+01 4.8 1E+01 1.36E+02 U SE 279326002 6/1/2011 Se-75 -3.7 1E+01 2.78E+01 7.63E+01 U SE 279326002 6/1/2011 Th-228 2.43E+03 1.61E+02 9.17E+01 SE 279326002 6/1/2011 Th-230 1.55E+03 1.16E+02 1.1OE+02 SE 279326002 6/1/2011 TI-208 7.23E+02 5.58E+01 6.04E+01 SE 279326002 6/1/2011 Zn-65 -3.28E+01 5.13E+01 1.42E+02 U SE 279326002 6/1/2011 Zr-95 -2.19E+01 3.91 E+0 1 1.27E+02 U SE 290630002 11/16/2011 Ac-228 1.44E+03 1.96E+02 2.06E+02 SE 290630002 11/16/2011 Ag-108m 1.60E+01 1.43E+01 4.95E+01 U SE 290630002 11/16/2011 Ag-I 10m 4.80E+00 1.53E+01 5.38E+01 U 2.52E+02 U I

SE 290630002 11/16/2011 Ba-140 -6.65E+01 8.44E+0 1 SE 290630002 11/16/2011 Be-7 -2.05E+01 1.91 E+02 6.38E+02 U SE 290630002 11/16/2011 Bi-214 1.13E+03 1.07E+02 1.12E+02 SE 290630002 11/16/2011 Ce- 141 -2.78E+00 4.34E+01 1.57E+02 U SE SE SE 290630002 290630002 290630002 11/16/2011 11/16/2011 11/16/2011 Ce- 144 Co-57 Co-58

-1.1OE+02

-1.43E+01

-1.26E+01 1.07E+02 1.35E+01 2.20E+01 3.66E+02 4.64E+01 7.14E+01 U

U U

I SE SE SE 290630002 290630002 290630002 11/16/2011 11/16/2011 11/16/2011 Co-60 Cr-51 Cs-134

-1.28E+01 6.30E+01 7.3 1E+01 2.03E+01 2.48E+02 3.09E+01 6.16E+01 8.66E+02 9.98E+01 U

U U

I SE 290630002 11/16/2011 Cs-137 -2.05E+01 1.78E+01 5.49E+01 U SE 290630002 11/16/2011 Fe-59 -2.23E+01 4.75E+01 1.50E+02 U SE 290630002 11/16/2011 1-131 -1.03E+02 1.84E+02 6.07E+02 U SE 290630002 11/16/2011 K-40 1.30E+04 9.01E+02 4.74E+02 SE SE SE 290630002 290630002 290630002 11/16/2011 11/16/2011 11/16/2011 La-140 Mn-54 Nb-95

-6.65E+01

-4.28E+01

-2.14E+01 8.44E+0 I 2.18E+01 2.9 1E+01 2.52E+02 5.64E+01 8.05E+01 U

U U

I SE 290630002 11/16/2011 Pb-212 1.67E+03 1.09E+02 1.03E+02 SE 290630002 11/16/2011 Pb-214 1.32E+03 1.14E+02 1.21E+02 SE 290630002 11/16/2011 Ra-226 1.13E+03 1.07E+02 1.12E+02 SE 290630002 11/16/2011 Ru-103 1.55E+01 2.43E+01 8.34E+01 U 187

'I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

SE 52 290630002 11/16/2011 Ru-106 -1.93E+02 1.68E+02 5.28E+02 SE 52 290630002 11/16/2011 Sb-124 -9.38E+00 4.13E+01 1.33E+02 SE 52 290630002 11/16/2011 Sb-125 4.95E+01 4.61E+01 1.60E+02 SE 52 290630002 11/16/2011 Se-75 6.80E+00 2.70E+01 8.39E+01 SE 52 290630002 11/16/2011 Th-228 1.67E+03 1.09E+02 1.03E+02 SE 52 290630002 11/16/2011 Th-230 1.13E+03 1.03E+02 1.12E+02 SE 52 290630002 11/16/2011 TI-208 5.11E+02 4.59E+01 5.91E+01 SE 52 290630002 11/16/2011 Zn-65 6.OOE+01 5.48E+01 1.67E+02 SE 52 290630002 11/16/2011 Zr-95 -4.14E+00 4.08E+0 1 1.39E+02 SE 57 279329003 5/24/2011 Ac-228 3.71 E+02 9.13E+01 1.57E+02 SE 57 279329003 5/24/2011 Ag-108m 4.OOE+00 9.4 1E+00 3.28E+01 SE 57 279329003 5/24/2011 Ag-I 10m -5.83E+00 1.16E+01 3.90E+01 SE 57 279329003 5/24/2011 Ba-140 -3.31E+01 7.48E+01 2.32E+02 SE 57 279329003 5/24/2011 Be-7 -1.45E+02 1.44E+02 4.5 1E+02 SE 57 279329003 5/24/2011 Bi-214 4.57E+02 5.84E+01 6.73E+01 SE 57 279329003 5/24/2011 Ce-141 2.OOE+01 3.19E+01 1.11 E+02 SE 57 279329003 5/24/2011 Ce-144 3.77E+01 6.43E+01 2.29E+02 SE 57 279329003 5/24/2011 Co-57 -3.68E+00 7.98E+00 2.78E+01 SE 57 279329003 5/24/2011 Co-58 5.12E-01 1.48E+01 5.06E+01 SE 57 279329003 5/24/2011 Co-60 -1.67E+01 1.56E+01 4.71 E+0 1 SE 57 279329003 5/24/2011 Cr-5i 1.77E+02 2.OOE+02 7.12E+02 SE 57 279329003 5/24/2011 Cs-134 2.26E+0 1 1.74E+01 6.01E+01 SE 57 279329003 5/24/2011 Cs-137 -2.67E+01 1.40E+01 4.12E+01 SE 57 279329003 5/24/2011 Fe-59

1.02E+02 5.47E+01 1.80E+02 SE 57 279329003 5/24/2011 1-131 2.55E+02 2.29E+02 8.06E+02 SE 57 279329003 5/24/2011 K-40 1.87E+04 1.09E+03 2.84E+02 SE 57 279329003 5/24/2011 La-140 -3.3 1E+01 7.48E+01 2.32E+02 SE 57 279329003 5/24/2011 Mn-54 -1.65E-01 1.25E+01 4.25E+01 SE 57 279329003 5/24/2011 Nb-95 1.49E+00 1.62E+01 5.56E+01 SE 57 279329003 5/24/2011 Pb-212 5.47E+02 5.30E+01 6.95E+01 SE 57 279329003 5/24/2011 Pb-214 4.46E+02 5.86E+01 7.42E+01 SE 57 279329003 5/24/2011 Ra-226 4.57E+02 5.84E+01 6.73E+01 SE 57 279329003 5/24/2011 Ru-103 -2.46E+0 I 2.06E+01 6.26E+01 SE 57 279329003 5/24/2011 Ru-106 -3.88E+01 9.44E+01 3.22E+02 SE 57 279329003 5/24/2011 Sb-124 -2.30E+00 2.67E+01 8.63E+01 SE 57 279329003 5/24/2011 Sb-125 8.74E+00 2.87E+01 9.97E+01 SE 57 279329003 5/24/2011 Se-75 1.99E+01 1.49E+01 5.33E+01 SE 57 279329003 5/24/2011 Th-228 5.47E+02 5.30E+01 6.95E+01 SE 57 279329003 5/24/2011 Th-230 4.57E+02 5.72E+01 6.73E+01 SE 57 279329003 5/24/2011 TI-208 2.13E+02 2.65E+01 3.71 E+01 SE 57 279329003 5/24/2011 Zn-65 -4.60E+0 1 4.13E+01 1.01E+02 SE 57 279329003 5/24/2011 Zr-95 3.15E+01 3.19E+01 1.12E+02 SE 57 290631003 11/15/2011 Ac-228 4.41E+02 9.82E+01 2.08E+02 SE 57 290631003 11/15/2011 Ag-108m -2.40E+0 1 1.33E+01 3.65E+01 SE 57 290631003 11/15/2011 Ag-110m -1.33E+01 1.38E+01 4.38E+01 SE 57 290631003 11/15/2011 Ba-140 2.58E+01 8.63E+01 2.97E+02 SE 57 290631003 11/15/2011 Be-7 1.34E+02 1.40E+02 4.96E+02 SE 57 290631003 11/1512011 Bi-214 4.92E+02 6.65E+01 1.03E+02 SE 57 290631003 11/15/2011 Ce-141 1.81E+01 3.23E+01 1.14E+02 SE 57 290631003 11/15/2011 Ce- 144 -5.13E+00 7.59E+01 2.66E+02 SE 57 290631003 11/15/2011 Co-57 -1.43E+01 1.08E+01 3.41E+01 188

Seabrook REMP Summary of 2011 Data SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

SE 290631003 11/15/2011 Co-58 -4.71 E+00 1.90E+01 6.40E+01 U SE 290631003 11/15/2011 Co-60 1.36E+00 1.93E+01 6.62E+01 U SE 290631003 11/15/2011 Cr-51 2.18E+01 2.04E+02 7.25E+02 U SE 290631003 11/15/2011 Cs-134 2.28E+01 1.84E+01 6.57E+01 U SE 290631003 11/15/2011 Cs-137 1.13E+01 1.42E+01 5.20E+01 U SE 290631003 11/15/2011 Fe-59 4.47E+00 5.27E+01 1.76E+02 U SE 290631003 11/15/2011 1-131 -1.28E+02 1.54E+02 4.99E+02 U SE SE SE 290631003 290631003 290631003 11/15/2011 11/15/2011 11/15/2011 K-40 La-140 Mn-54 1.57E+04 2.58E+01 1.13E+01 1.02E+03 8.63 E+01 1.47E+01 4.69E+02 2.97E+02 5.22E+01 U

U I

SE SE SE 290631003 290631003 290631003 11/15/2011 11/15/2011 11/15/2011 Nb-95 Pb-212 Pb-214

-2.94E+0 1 3.73E+02 4.72E+02 2.21 E+0 1 5.65E+01 6.45E+01 5.32E+01 9.24E+01 9.5 1E+01 U

I SE 290631003 11/15/2011 Ra-226 4.92E+02 6.65E+01 1.03E+02 SE 290631003 11/15/2011 Ru-103 3.05E+01 2.04E+01 7.17E+01 U SE 290631003 11/15/2011 Ru-106 -7.60E+01 1.27E+02 3.98E+02 U SE 290631003 11/15/2011 Sb-124 -3.35E+00 3.40E+01 1.11E+02 U SE 290631003 11/15/2011 Sb-125 5.38E+01 3.54E+01 1.26E+02 U SE 290631003 11/15/2011 Se-75 4.55E+00 1.72E+01 6.22E+01 U SE 290631003 11/15/2011 Th-228 3.73E+02 5.65E+01 9.24E+01 SE 290631003 11/15/2011 Th-230 4.92E+02 6.53E+01 1.03E+02 SE 290631003 11/15/2011 TI-208 1.59E+02 2.86E+01 4.72E+0 1 SE 290631003 11/15/2011 Zn-65 1.94E+01 4.07E+01 1.23E+02 U SE 290631003 11/15/2011 Zr-95 -2.35E+01 2.85E+01 8.99E+01 U I

a 3

189 i

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kgz)

TF 02 280312001 6/14/2011 Ac-228 6.66E+00 8.44E+00 2.04E+0 1 TF 02 280312001 6/14/2011 Ag-108m 1.33E-01 1.1OE+00 3.66E+00 TF 02 280312001 6/14/2011 Ag-110m -1.34E+00 1.36E+00 4.24E+00 TF 02 280312001 6/14/2011 Ba-140 -4.37E-01 2.46E+00 8.08E+00 TF 02 280312001 6/14/2011 Be-7 6.8 1E+01 1.73E+01 3.90E+01 TF 02 280312001 6/14/2011 Ce-141 -4.23E+00 3.83E+00 7.6 1E+00 TF 02 280312001 6/14/2011 Ce-144 -5.17E+00 8.33E+00 2.66E+01 TF 02 280312001 6/14/2011 Co-57 -3.46E-01 1.07E+00 3.45E+00 TF 02 280312001 6/14/2011 Co-58 2.74E+00 1.5 1E+00 4.73E+00 TF 02 280312001 6/14/2011 Co-60 2.26E+00 1.49E+00 4.94E+00 TF 02 280312001 6/14/2011 Cr-51 -5.14E+00 1.31E+01 4.34E+01 TF 02 280312001 6/14/2011 Cs-134 1.28E+00 1.73E+00 5.68E+00 TF 02 280312001 6/14/2011 Cs-137 5.35E-01 1.43E+00 4.74E+00 TF 02 280312001 6/14/2011 Fe-59 2.35E+00 3.14E+00 1.03E+01 TF 02 280312001 6/14/2011 1-131 2.27E+00 3.14E+00 1.05E+01 TF 02 280312001 6/14/2011 K-40 1.34E+03 7.94E+01 4.2 1E+01 TF 02 280312001 6/14/2011 La-140 -4.37E-01 2.46E+00 8.08E+00 TF 02 280312001 6/14/2011 Mn-54 -6.27E-02 1.31E+00 4.27E+00 TF 02 280312001 6/14/2011 Nb-95 2.40E-01 1.48E+00 4.85E+00 TF 02 280312001 6/14/2011 Ru-103 8.30E-01 1.47E+00 4.87E+00 TF 02 280312001 6/14/2011 Ru-106 1.65E+00 1.20E+01 3.95E+01 TF 02 280312001 6/14/2011 Sb-124 -7.61 E+00 7.26E+00 9.37E+00 TF 02 280312001 6/14/2011 Sb-125 -1.35E+00 3.44E+00 1.13E+01 TF 02 280312001 6/14/2011 Se-75 6.54E-01 1.78E+00 5.95E+00 TF 02 280312001 6/14/2011 Th-228 -6.67E+00 4.73E+00 8.44E+00 TF 02 280312001 6/14/2011 Zn-65 6.1OE-01 3.44E+00 1.12E+01 TF 02 280312001 6/14/2011 Zr-95 1.61E+00 2.62E+00 8.65E+00 TF 02 283014001 7/26/2011 Ac-228 1.86E-01 9.25E+00 1.75E+01 TF 02 283014001 7/26/2011 Ag-108m 9.24E-01 i .05E+00 3.4 1E+00 TF 02 283014001 7/26/2011 Ag-110m -1.53E+00 1.21E+00 3.72E+00 TF 02 283014001 7/26/2011 Ba-140 -3.27E+00 2.29E+00 6.36E+00 TF 02 283014001 7/26/2011 Be-7 1.04E+01 9.89E+00 3.20E+01 TF 02 283014001 7/26/2011 Ce-141 -2.62E+00 2.62E+00 5.86E+00 TF 02 283014001 7/26/2011 Ce-144 2.45E+00 6.23E+00 2.04E+01 TF 02 283014001 7/26/2011 Co-57 -7.90E-01 8.37E-01 2.64E+00 TF 02 283014001 7/26/2011 Co-58 -1.49E+00 1.25E+00 3.79E+00 TF 02 283014001 7/26/2011 Co-60 -1.54E+00 1.39E+00 4.23E+00 TF 02 283014001 7/26/2011 Cr-51 4.11E+00 1.08E+01 3.62E+01 TF 02 283014001 7/26/2011 Cs-134 -2.26E+00 2.1OE+00 4.98E+00 TF 02 283014001 7/26/2011 Cs-137 2.40E-01 1.56E+00 4.28E+00 TF 02 283014001 7/26/2011 Fe-59 4.48E+00 3.13E+00 1.04E+01 TF 02 283014001 7/26/2011 1-131 1.01E+00 2.46E+00 8.18E+00 TF 02 283014001 7/26/2011 K-40 2.60E+03 1.30E+02 3.55E+01 TF 02 283014001 7/26/2011 La-140 -3.27E+00 2.28E+00 6.36E+00 TF 02 283014001 7/26/2011 Mn-54 -1.26E+00 1.24E+00 3.83E+00 TF 02 283014001 7/26/2011 Nb-95 -7.86E-01 1.62E+00 4.3 1E+00 TF 02 283014001 7/26/2011 Ru-103 -1.45E+00 1.30E+00 3.92E+00 TF 02 283014001 7/26/2011 Ru-106 -1.88E+01 1.12E+01 3.30E+01 TF 02 283014001 7/26/2011 Sb-124 -4.43E+00 2.98E+00 8.12E+00 TF 02 283014001 7/26/2011 Sb-125 - 1.14E+00 2.95E+00 9.50E+00 TF 02 283014001 7/26/2011 Se-75 -8.77E-Oi 1.44E+00 4.76E+00 190

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TF 02 283014001 7/26/2011 Th-228 -3.04E+00 2.79E+00 7.07E+00 U TF 02 283014001 7/26/2011 Zn-65 -4.06E+00 3.33E+00 1.03E+01 U TF 02 283014001 7/26/2011 Zr-95 3.77E-02 2.28E+00 7.56E+00 U TF 02 284902001 8/23/2011 Ac-228 -1.06E+01 1.72E+01 4.20E+01 U TF 02 284902001 8/23/2011 Ag-108m -4.98E+00 2.62E+00 7.43E+00 U TF 02 284902001 8/23/2011 Ag-10m 1.84E+00 2.61E+00 8.76E+00 U TF 02 284902001 8/23/2011 Ba-140 1.99E+00 4.85E+00 1.62E+01 U TF 02 284902001 8/23/2011 Be-7 -1.47E+01 2.33E+01 7.45E+01 U TF 02 284902001 8/23/2011 Ce-141 4.18E+00 4.41E+00 1.40E+01 U TF 02 284902001 8/23/2011 Ce-144 -1.67E+01 1.63E+01 4.97E+01 U TF 02 284902001 8/23/2011 Co-57 4.09E-01 2.46E+00 6.67E+00 U TF 02 284902001 8/23/2011 Co-58 -3.49E+00 2.82E+00 8.50E+00 U TF 02 284902001 8/23/2011 Co-60 2.27E+00 2.93E+00 9.63E+00 U TF 02 284902001 8/23/2011 Cr-51 -2.82E+01 2.65E+01 8.08E+01 U TF 02 284902001 8/23/2011 Cs-134 -8.33E+00 3.74E+00 9.60E+00 U TF 02 284902001 8/23/2011 Cs-137 5.99E+00 3.14E+00 9.89E+00 U TF 02 284902001 8/23/2011 Fe-59 -5.15E+00 5.94E+00 1.87E+01 U TF 02 284902001 8/23/2011 1-131 -1.97E+00 5.14E+00 1.71E+01 U TF 02 284902001 8/23/2011 K-40 2.09E+03 1.45E+02 8.42E+01 TF 02 284902001 8/23/2011 La-140 1.99E+00 4.85E+00 1.62E+01 U TF 02 284902001 8/23/2011 Mn-54 -7.60E-02 2.92E+00 9.54E+00 U TF 02 284902001 8/23/2011 Nb-95 3.09E+00 2.92E+00 9.59E+00 U TF 02 284902001 8/23/2011 Ru-103 -1.78E+00 2.83E+00 9.03E+00 U TF 02 284902001 8/23/2011 Ru-106 -1.39E+01 2.40E+01 7.87E+01 U TF 02 284902001 8/23/2011 Sb-124 1.27E+01 7.14E+00 2.31E+01 U TF 02 284902001 8/23/2011 Sb-125 8.55E+00 7.14E+00 2.34E+01 U TF 02 284902001 8/23/2011 Se-75 -2.15E+00 3.47E+00 1.11E+01 U TF 02 284902001 8/23/2011 Th-228 7.44E+00 7.36E+00 1.79E+01 U TF 02 284902001 8/23/2011 Zn-65 -6.47E+00 6.56E+00 2.04E+01 U TF 02 284902001 8/23/2011 Zr-95 1.30E+00 4.97E+00 1.65E+01 U TF 03 280312002 6/14/2011 Ac-228 1.69E+00 6.19E+00 1.52E+01 U TF 03 280312002 6/14/2011 Ag-108m 5.56E-01 7.72E-01 2.60E+00 U TF 03 280312002 6/14/2011 Ag-110m -2.36E+00 1.07E+00 2.73E+00 U TF 03 280312002 6/14/2011 Ba-140 -9.82E-01 1.75E+00 5.62E+00 U TF 03 280312002 6/14/2011 Be-7 8.46E+01 1.45E+01 2.65E+01 TF 03 280312002 6/14/2011 Ce-141 -1.66E+00 1.49E+00 4.71E+00 U TF 03 280312002 6/14/2011 Ce-144 5.86E+00 5.14E+00 1.69E+01 U TF 03 280312002 6/14/2011 Co-57 2.35E-01 6.50E-01 2.20E+00 U TF 03 280312002 6/14/2011 Co-58 -1.35E+00 1.08E+00 3.14E+00 U TF 03 280312002 6/14/2011 Co-60 7.83E-01 1.15E+00 3.80E+00 U TF 03 280312002 6/14/2011 Cr-51 -2.27E+00 8.85E+00 2.80E+01 U TF 03 280312002 6/14/2011 Cs-134 -7.79E-01 1.22E+00 3.43E+00 U TF 03 280312002 6/14/2011 Cs-137 2.45E+00 1.14E+00 3.45E+00 U TF 03 280312002 6/14/2011 Fe-59 -2.29E+00 2.24E+00 6.87E+00 U TF 03 280312002 6/14/2011 1-131 2.11 E+00 2.OOE+00 6.75E+00 U TF 03 280312002 6/14/2011 K-40 1.25E+03 7.17E+01 2.89E+01 TF 03 280312002 6/14/2011 La-140 -9.82E-01 1.75E+00 5.62E+00 U TF 03 280312002 6/14/2011 Mn-54 -5.65E-01 9.20E-01 3.01E+00 U TF 03 280312002 6/14/2011 Nb-95 3.03E+00 1.26E+00 3.65E+00 U TF 03 280312002 6/14/2011 Ru-103 -4.37E-01. 9.94E-01 3.25E+00 U TF 03 280312002 6/14/2011 Ru-106 1.53E+01 9.1OE+00 2.88E+01 U 191

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TF 03 280312002 6/14/2011 Sb-124 -9.85E-01 2.15E+00 6.90E+00 TF 03 280312002 6/14/2011 Sb-125 1.26E+00 2.34E+00 7.90E+00 TF 03 280312002 6/14/2011 Se-75 5.82E-03 1.13E+00 3.66E+00 TF 03 280312002 6/14/2011 Th-228 1.79E+00 2.64E+00 5.73E+00 TF 03 280312002 6/14/2011 Zn-65 -6.44E+00 3.58E+00 7.93E+00 TF 03 280312002 6/14/2011 Zr-95 2.98E+00 1.92E+00 6.08E+00 TF 03 283014002 7/26/2011 Ac-228 6.65E+00 7.77E+00 2.01E+01 TF 03 283014002 7/26/2011 Ag-108m -3.63E-01 9.81 E-0 1 3.2 1E+00 TF 03 283014002 7/26/2011 Ag-110m -1.57E+01 3.98E+00 3.77E+00 TF 03 283014002 7/26/2011 Ba-140 9.68E-01 2.35E+00 7.80E+00 TF 03 283014002 7/26/2011 Be-7 1.16E+0 I 1.1OE+0 I 3.58E+01 TF 03 283014002 7/26/2011 Ce-141 -9.84E+00 3.47E+00 5.27E+00 TF 03 283014002 7/26/2011 Ce-144 -5.90E+00 5.60E+00 1.79E+01 TF 03 283014002 7/26/2011 Co-57 -1.56E+00 9.98E-01 2.29E+00 TF 03 283014002 7/26/2011 Co-58 1.27E+00 1.36E+00 4.55E+00 TF 03 283014002 7/26/2011 Co-60 -3.12E+00 2.34E+00 5.42E+00 TF 03 283014002 7/26/2011 Cr-51 1.48E+00 1.04E+01 3.52E+01 TF 03 283014002 7/26/2011 Cs-134 6.70E-02 1.58E+00 5.26E+00 TF 03 283014002 7/26/2011 Cs-137 -1.01E+00 2.93E+00 7.36E+00 TF 03 283014002 7/26/2011 Fe-59 -1.25E+00 3.2 1E+00 1.02E+01 TF 03 283014002 7/26/2011 1-131 -1.24E+00 2.34E+00 7.69E+00 TF 03 283014002 7/26/2011 K-40 1.64E+03 9.24E+01 4.56E+01 TF 03 283014002 7/26/2011 La-140 9.68E-01 2.35E+00 7.80E+00 TF 03 283014002 7/26/2011 Mn-54 3.33E-01 1.23E+00 4. 1OE+00 TF 03 283014002 7/26/2011 Nb-95 -1.07E-01 1.37E+00 4.56E+00 TF 03 283014002 7/26/2011 Ru-103 -1.41E+00 1.37E+00 4.22E+00 TF 03 283014002 7/26/2011 Ru-106 1.90E+00 1.12E+0I 3.60E+01 TF 03 283014002 7/26/2011 Sb-124 -3.5 1E+00 3.17E+00 9.19E+00 TF 03 283014002 7/26/2011 Sb-125 -2.08E+00 3.08E+00 9.90E+00 TF 03 283014002 7/26/2011 Se-75 - 1.90E+00 1.47E+00 4.37E+00 TF 03 283014002 7/26/2011 Th-228 4.02E+00 3.54E+00 6.72E+00 TF 03 283014002 7/26/2011 Zn-65 -1.24E+00 3.52E+00 1.12E+0I TF 03 283014002 7/26/2011 Zr-95 -1.46E+00 2.35E+00 7.62E+00 TF 03 284902002 8/23/2011 Ac-228 1.04E+01 8.99E+00 2.01E+01 TF 03 284902002 8/23/2011. Ag-108m -2.83E+00 1.34E+00 3.57E+00 TF 03 284902002 8/23/2011 Ag-110m -6.88E-01 1.22E+00 3.99E+00 TF 03 284902002 8/23/2011 Ba-140 -2.83E+00 3.02E+00 8.19E+00 TF 03 284902002 8/23/2011 Be-7 -1.00E+01 1.11 E+01 3.43E+01 TF 03 284902002 8/23/2011 Ce-141 -3.98E-01 3.20E+00 7.48E+00 TF 03 284902002 8/23/2011 Ce-144 1.15E+01 8.33E+00 2.63E+01 TF 03 284902002 8/23/2011 Co-57 -1.24E+00 1.08E+00 3.32E+00 TF 03 284902002 8/23/2011 Co-58 -2.04E+00 1.49E+00 4.44E+00 TF 03 284902002 8/23/2011 Co-60 1.73E+00 1.69E+00 5.70E+00 TF 03 284902002 8/23/2011 Cr-51 -1.05E+01 1.24E+01 3.97E+01 TF 03 284902002 8/23/2011 Cs-134 3.38E+00 1.88E+00 5.42E+00 TF 03 284902002 8/23/2011 Cs-137 -6.47E-01 2.07E+00 4.50E+00 TF 03 284902002 8/23/2011 Fe-59 -5.15E-01 3.32E+00 1.07E+01 TF 03 284902002 8/23/2011 1-131 -2.74E+00 3.1OE+00 8.44E+00 TF 03 284902002 8/23/2011 K-40 2.25E+03 1.29E+02 4.61E+01 TF 03 284902002 8/23/2011 La- 140 -2.83E+00 3.02E+00 8.19E+00 TF 03 284902002 8/23/2011 Mn-54 -5.76E-01 1.36E+00 4.39E+00 192

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TF 03 284902002 8/23/2011 Nb-95 1.07E-03 1.40E+00 4.67E+00 U TF 03 284902002 8/23/2011 Ru-103 -1.07E+00 1.35E+00 4.20E+00 U TF 03 284902002 8/23/2011 Ru-106 -1.02E+00 1.19E+01 3.99E+01 U TF 03 284902002 8/23/2011 Sb-124 -8.96E-01 3.15E+00 1.01E+01 U TF 03 284902002 8/23/2011 Sb-125 -4.OOE+00 3.74E+00 1.15E+01 U TF 03 284902002 8/23/2011 Se-75 -1.63E+00 1.74E+00 5.61E+00 U TF 03 284902002 8/23/2011 Th-228 -2.59E+00 3.02E+00 8.13E+00 U TF 03 284902002 8/23/2011 Zn-65 -3.80E+00 3.50E+00 1.04E+01 U TF 03 284902002 8/23/2011 Zr-95 -2.37E+00 2.44E+00 7.62E+00 U TF 06 280312003 6/14/2011 Ac-228 -4.05E-01 6.59E+00 1.62E+01 U TF 06 280312003 6/14/2011 Ag-108m -1.85E+00 9.65E-01 2.66E+00 U TF 06 280312003 6/14/2011 Ag-110m 1.32E-01 9.79E-01 3.29E+00 U TF 06 280312003 6/14/2011 Ba-140 1.56E+00 2.21E+00 7.33E+00 U TF 06 280312003 6/14/2011 Be-7 7.03E+01 1.37E+01 2.93E+01 TF 06 280312003 6/14/2011 Ce-141 3.21E+00 1.96E+00 5.48E+00 U TF 06 280312003 6/14/2011 Ce-144 -5.79E+00 5.60E+00 1.74E+01 U TF 06 280312003 6/14/2011 Co-57 3.26E-01 7.11E-01 2.34E+00 U TF 06 280312003 6/14/2011 Co-58 -2.91E-01 1.15E+00 3.74E+00 U TF 06 280312003 6/14/2011 Co-60 8.59E-01 1.15E+00 3.85E+00 U TF 06 280312003 6/14/2011 Cr-51 -1.79E+01 1.03E+01 2.99E+01 U TF 06 280312003 6/14/2011 Cs-134 -1.81E+00 1.38E+00 4.13E+00 U TF 06 280312003 6/14/2011 Cs-137 9.79E-01 1.13E+00 3.78E+00 U TF .06 280312003 6/14/2011 Fe-59 -6.16E-01 2.35E+00 7.79E+00 U TF 06 280312003 6/14/2011 1-131 -2.26E+00 2.37E+00 7.45E+00 U TF 06 280312003 6/14/2011 K-40 9.66E+02 5.91E+01 3.56E+01 TF 06 280312003 6/14/2011 La-140 1.56E+00 2.21E+00 7.33E+00 U TF 06 280312003 6/14/2011 Mn-54 1.36E+00 1.15E+00 3.76E+00 U TF 06 280312003 6/14/2011 Nb-95 3.14E+00 1.36E+00 4.09E+00 U TF 06 280312003 6/14/2011 Ru-103 -9.26E-01 1.14E+00 3.52E+00 U TF 06 280312003 6/14/2011 Ru-106 -6.1OE+00 9.49E+00 3.1OE+01 U TF 06 280312003 6/14/2011 Sb-124 4.88E-01 2.57E+00 8.40E+00 U TF 06 280312003 6/14/2011 Sb-125 -1.19E+00 2.65E+00 8.50E+00 U TF 06 280312003 6/14/2011 Se-75 1.38E+00 1.29E+00 4.29E+00 U TF 06 280312003 6/14/2011 Th-228 1.30E-01 2.71E+00 6.22E+00 U TF 06 280312003 6/14/2011 Zn-65 1.23E+00 2.57E+00 8.69E+00 U TF 06 280312003 6/14/2011 Zr-95 2.11E+00 2.07E+00 6.85E+00 U TF 06 283014003 7/26/2011 Ac-228 -7.68E+00 6.22E+00 1.49E+01 U TF 06 283014003 7/26/2011 Ag-108m -3.32E-01 8.30E-01 2.70E+00 U TF 06 283014003 7/26/2011 Ag- l10m -4.OOE-02 8.63E-01 2.77E+00 U TF 06 283014003 7/26/2011 Ba-140 -3.21E+00 3.27E+00 5.48E+00 U TF 06 283014003 7/26/2011 Be-7 -5.96E+00 8.29E+00 2.62E+01 U TF 06 283014003 7/26/2011 Ce-141 -2.62E+00 1.70E+00 4.97E+00 U TF 06 283014003 7/26/2011 Ce-144 6.08E+00 5.59E+00 1.79E+01 U TF 06 283014003 7/26/2011 Co-57 7.19E-01 7.09E-01 2.29E+00 U TF 06 283014003 7/26/2011 Co-58 2.08E+00 1.07E+00 3.44E+00 U TF 06 283014003 7/26/2011 Co-60 -3.79E-01 1.57E+00 3.86E+00 U TF 06 283014003 7/26/2011 Cr-51 3.38E+00 8.88E+00 2.99E+01 U TF 06 283014003 7/26/2011 Cs-134 -3.97E+00 1.75E+00 3.79E+00 U TF 06 283014003 7/26/2011 Cs-137 -3.51E-01 9.74E-01 3.08E+00 U TF 06 283014003 7/26/2011 Fe-59 -2.53E+00 2.39E+00 7.31E+00 U TF 06 283014003 7/26/2011 1-131 5.61E-01 2.02E+00 6.74E+00 U 193

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TF 283014003 7/26/2011 K-40 1.54E+03 8.21E+0I 3.30E+01 TF 283014003 7/26/2011 La-140 -3.2 1E+00 3.27E+00 5.48E+00 TF 283014003 7/26/2011 Mn-54 -1.66E+00 1.06E+00 3.12E+00 TF 283014003 7/26/2011 Nb-95 7.71E-0I 9.82E-01 3.33E+00 TF 283014003 7/26/2011 Ru-103 -7.80E-01 1.03E+00 3.24E+00 TF 283014003 7/26/2011 Ru-106 5.19E+00 8.52E+00 2.78E+01 TF 283014003 7/26/2011 Sb-124 -2.80E+00 2.24E+00 6.55E+00 TF 283014003 7/26/2011 Sb-125 1.19E+00 2.5 1E+00 8.34E+00 TF 283014003 7/26/2011 Se-75 6.83E-01 1.21E+00 4.1OE+00 TF 283014003 7/26/2011 Th-228 3.42E+00 3.02E+00 6.15E+00 TF 283014003 7/26/2011 Zn-65 -4.90E-01 2.4 1E+00 7.84E+00 TF 283014003 7/26/2011 Zr-95 8.09E-01 2.21E+00 6. 1OE+00 TF 284902003 8/23/2011 Ac-228 -1.39E+01 7.48E+00 1.78E+01 TF 284902003 8/23/2011 Ag-108m - 1.17E+00 1.04E+00 3.24E+00 TF 284902003 8/23/2011 Ag-110m 2.OOE-01 1.13E+00 3.66E+00 TF 284902003 8/23/2011 Ba-140 -8.32E-02 2.02E+00 6.67E+00 TF 284902003 8/23/2011 Be-7 1.64E+01 1.38E+01 3.63E+01 TF 284902003 8/23/2011 Ce-141 1.38E+00 1.84E+00 6.12E+00 TF 284902003 8/23/2011 Ce-144 6.18E-01 6.77E+00 2.27E+01 TF 284902003 8/23/2011 Co-57 6.05E-03 8.31E-01 2.79E+00 TF 284902003 8/23/2011 Co-58 7.86E-01 1.24E+00 4.23E+00 TF 284902003 8/23/2011 Co-60 3.74E-01 1.53E+00 4.99E+00 TF 284902003 8/23/2011 Cr-51 6.66E+00 1.04E+01 3.54E+01 TF 284902003 8/23/2011 Cs-134 -6.28E-01 1.54E+00 5.09E+00 TF 284902003 8/23/2011 Cs-137 7.07E-02 1.20E+00 3.90E+00 TF 284902003 8/23/2011 Fe-59 3.49E-01 3.16E+00 1.04E+01 TF 284902003 8/23/2011 1-131 1.06E+00 2.87E+00 8.08E+00 TF 284902003 8/23/2011 K-40 2.33E+03 1.22E+02 4.17E+01 TF 284902003 8/23/2011 La-140 -8.32E-02 2.02E+00 6.67E+00 TF 284902003 8/23/2011 Mn-54 -2.34E-01 1.23E+00 4.08E+00 TF 284902003 8/23/2011 Nb-95 2.20E-01 1.53E+00 4.51E+00 TF 284902003 8/23/2011 Ru-103 -9.79E-01 1.27E+00 4.03E+00 TF 284902003 8/23/2011 Ru-106 -9.57E+00 1.08E+01 3.3 1E+0I TF 284902003 8/23/2011 Sb-124 2.52E+00 2.97E+00 1.01E+01 TF 284902003 8/23/2011 Sb-125 8.44E-01 3.04E+00 1.02E+01 TF 284902003 8/23/2011 Se-75 -8.45E-01 1.52E+00 4.76E+00 TF 284902003 8/23/2011 Th-228 1.83E-01 3.65E+00 7.56E+00 TF 284902003 8/23/2011 Zn-65 -6.29E+00 3.75E+00 1.05E+01 TF 284902003 8/23/2011 Zr-95 -1.37E+00 2.11 E+00 6.87E+00 194

Seabrook REMP Summary of 2011 Data I

SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TG 08 278773001 5/21/2011 Ac-228 1.41E+01 1.30E+01 3.52E+01 U 13 TG 08 278773001 5/21/2011 Ag-108m -2.13E+00 2.03E+00 6.39E+00 U TG 08 278773001 5/21/2011 Ag-110m 5.72E-03 2.11IE+00 6.90E+00 U TG 08 278773001 5/21/2011 Ba-140 1.48E+00 4.63E+00 1.53E+01 U TG 08 278773001 5/21/2011 Be-7 1.05E+03 7.06E+01 6.71E+01 TG 08 278773001 5/21/2011 Ce-141 9.34E+00 5.33E+00 1.46E+01 U TG 08 278773001 5/21/2011 Ce-144 -1.20E+01 1.42E+01 4.51E+01 U TG 08 278773001 5/21/2011 Co-57 -9.55E-01 1.80E+00 5.84E+00 U TG 08 278773001 5/21/2011 Co-58 -1.43E+00 2.48E+00 7.78E+00 U TG 08 278773001 5/21/2011 Co-60 3.19E+00 2.70E+00 8.92E+00 U TG 08 278773001 5/21/2011 Cr-51 3.30E+01 2.46E+01 8.10E+01 U TG 08 278773001 5/21/2011 Cs-134 -5.67E-02 2.80E+00 9.04E+00 U TG 08 278773001 5/21/2011 Cs-137 2.40E+00 2.31E+00 7.56E+00 U TG 08 278773001 5/21/2011 Fe-59 -1.26E+00 5.56E+00 1.83E+01 U TG 08 278773001 5/21/2011 1-131 6.46E+00 7.16E+00 2.39E+01 U TG 08 278773001 5/21/2011 K-40 3.37E+03 2.01E+02 7.70E+01 TG 08 278773001 5/21/2011 La-140 1.48E+00 4.63E+00 1.53E+01 U TG 08 278773001 5/21/2011 Mn-54 1.11E+00 2.42E+00 7.87E+00 U TG 08 278773001 5/21/201 Nb-95 1.67E+00 2.55E+00 8.34E+00 U TG 08 278773001 5/21/2011 Ru-103 1.65E+00 2.61E+00 8.68E+00 U TG 08 278773001 5/21/2011 Ru-106 -2.08E+01 2.13E+01 6.59E+01 U TG 08 278773001 5/21/2011 Sb-124 -2.80E+00 4.97E+00 1.53E+01 U TG 08 278773001 5/21/2011 Sb-125 7.24E-01 6.OOE+00 2.01E+01 U TG 08 278773001 5/21/2011 Se-75 1.40E+00 3.18E+00 1.03E+01 U TG 08 278773001 5/21/2011 Th-228 1.83E+01 7.53E+00 1.32E+01 TG 08 278773001 5/21/2011 Zn-65 -1.24E+01 6.60E+00 1.84E+01 U TG 08 278773001 5/21/2011 Zr-95 5.42E+00 4.61E+00 1.49E+01 U TG 08 280316001 6/14/2011 Ac-228 2.22E+01 1.30E+01 4.19E+01 U TG 08 280316001 6/14/2011 Ag-108m -4.26E-01 2.59E+00 8.51E+00 U TG 08 280316001 6/14/2011 Ag-ll0m -6.76E-02 3.17E+00 1.03E+01 U TG 08 280316001 6/14/2011 Ba-140 -9.17E+00 6.31E+00 1.76E+01 U TG 08 280316001 6/14/2011 Be-7 8.53E+02 6.55E+01 8.58E+01 TG 08 280316001 6/14/2011 Ce-141 2.94E+00 4.97E+00 1.60E+01 U TG 08 280316001 6/14/2011 Ce-144 3.08E+00 1.68E+01 5.43E+01 U TG 08 280316001 6/14/2011 Co-57 3.47E+00 2.36E+00 7.35E+00 U TG 08 280316001 6/14/2011 Co-58 8.48E-01 3.23E+00 1.09E+01 U TG 08 280316001 6/14/2011 Co-60 1.52E+00 3.63E+00 1.21E+01 U TG 08 280316001 6/14/2011 Cr-51 2.25E+01 2.98E+01 9.92E+01 U TG 08 280316001 6/14/201 Cs-134 8.13E+00 4.19E+00 1.33E+01 U TG 08 280316001 6/14/2011 Cs-137 -5.99E+00 4.78E+00 1.12E+01 U TG 08 280316001 6/14/2011 Fe-59 7.99E+00 6.85E+00 2.28E+01 U TG 08 280316001 6/14/2011 1-131 -7.75E+00 6.85E+00 2.14E+01 U TG 08 280316001 6/14/2011 K-40 3.08E+03 1.79E+02 1.02E+02 TG 08 280316001 6/14/2011 La-140 -9.17E+00 6.30E+00 1.76E+01 U

-TG 08 280316001 6/14/2011 Mn-54 -3.05E+00 3.20E+00 1.02E+01 U TG 08 280316001 6/14/2011 Nb-95 3.12E+00 3.18E+00 1.03E+01 U TG 08 280316001 6/14/2011 Ru-103 -8.38E+00 3.88E+00 1.02E+01 U TG 08 280316001 6/14/2011 Ru-106 -1.79E+01 3.04E+01 9.62E+01 U TG 08 280316001 6/14/2011 Sb-124 3.88E+00 8.53E+00 2.81E+01 U TG 08 280316001 6/14/2011 Sb-125 -1.19E+01 8.32E+00 2.50E+01 U TG 08 280316001 6/14/2011 Se-75 2.01E+00 3.77E+00 1.27E+01 U 195

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TG 08 280316001 6/14/2011 Th-228 -1.14E+01 8.89E+00 1.82E+01 TG 08 280316001 6/14/2011 Zn-65 -9.20E+00 7.42E+00 2.25E+01 TG 08 280316001 6/14/2011 Zr-95 4.23E+00 6.23E+00 2.03E+01 TG 08 283013001 7/26/2011 Ac-228 5.81E+01 1.84E+01 3.90E+01 TG 08 283013001 7/26/2011 Ag-108m -1.25E+00 1.97E+00 6.34E+00 TG 08 283013001 7/26/2011 Ag-110m -1.42E+00 2.37E+00 7.50E+00 TG 08 283013001 7/26/2011 Ba-140 -6.82E+00 4.98E+00 1.42E+01 TG 08 283013001 7/26/2011 Be-7 1.15E+03 7.42E+0 I 6.73E+01 TG 08 283013001 7/26/2011 Ce-141 2.57E+00 3.77E+00 1.21E+01 TG 08 283013001 7/26/2011 Ce-144 -1.10E+01 1.35E+01 4.22E+0 i TG 08 283013001 7/26/2011 Co-57 2.41 E+00 1.71E+00 5.36E+00 TG 08 283013001 7/26/2011 Co-58 -3.37E-01 2.3 1E+00 7.74E+00 TG 08 283013001 7/26/2011 Co-60 -6.04E+00 3.97E+00 8.9 1E+00 TG 08 283013001 7/26/2011 Cr-51 -3.55E-01 2.20E+01 7.32E+01 TG 08 283013001 7/26/2011 Cs-134 4.60E+00 2.94E+00 9.64E+00 TG 08 283013001 7/26/2011 Cs-137 4.11E+00 2.75E+00 8.70E+00 TG 08 283013001 7/26/2011 Fe-59 -3.50E+00 5.45E+00 1.75E+01 TG 08 283013001 7/26/2011 1-131 9.78E-01 5.04E+00 1.68E+01 TG 08 283013001 7/26/2011 K-40 2.98E+03 i .60E+02 7.88E+01 TG 08 283013001 7/26/2011 La-140 -6.82E+00 4.98E+00 1.42E+01 TG 08 283013001 7/26/2011 Mn-54 -5.66E-01 2.40E+00 7.98E+00 TG 08 283013001 7/26/2011 Nb-95 2.52E+00 2.67E+00 8.62E+00 TG 08 283013001 7/26/2011 Ru-103 -2.38E+00 2.59E+00 8.09E+00 TG 08 283013001 7/26/2011 Ru-106 -1.39E+01 2.22E+01 7.03E+01 TG 08 283013001 7/26/2011 Sb-124 -5.85E+00 5.74E+00 1.70E+01 TG ;08 283013001 7/26/2011 Sb-125 1.51E+00 5.82E+00 1.93E+01 TG 08 283013001 7/26/2011 Se-75 9.55E-01 2.9 1E+00 9.79E+00 TG 08 283013001 7/26/2011 Th-228 -1.14E-01 6.1OE+00 1.43E+01 TG 08 283013001 7/26/2011 Zn-65 -1.30E+01 6.65E+00 1.83E+01 TG 08 283013001 7/26/2011 Zr-95 1.45E+00 4.48E+00 1.45E+01 TG 08 284898001 8/23/2011 Ac-228 2.30E+01 3.59E+01 5.25E+01 TG 08 284898001 8/23/2011 Ag-108m -5.66E+00 3.79E+00 1.i0E+01 TG 08 284898001 8/23/2011 Ag-110m -3.70E+00 3.97E+00 1.24E+01 TG 08 284898001 8/23/2011 Ba-140 -3.15E+01 1.04E+01 1.75E+01 TG 08 284898001 8/23/2011 Be-7 1.1OE+03 9.84E+01 1.15E+02 TG 08 284898001 8/23/2011 Ce- 141 1.78E+01 7.84E+00 2.04E+01 TG 08 284898001 8/23/2011 Ce-144 5.78E+01 2.62E+01 7.53E+01 TG 08 284898001 8/23/2011 Co-57 -4.88E-01 2.77E+00 9.OOE+00 TG 08 284898001 8/23/2011 Co-58 -5.37E+00 4.66E+00 1.39E+01 TG 08 284898001 8/23/2011 Co-60 3.77E+00 5.95E+00 1.67E+01 TG 08 284898001 8/23/2011 Cr-51 2.61E-01 3.74E+01 1.23E+02 TG 08 284898001 8/23/2011 Cs-134 1.47E+01 6.26E+00 1.86E+01 TG 08 284898001 8/23/2011 Cs-137 1.21E+01 5.25E+00 1.58E+01 TG 08 284898001 8/23/2011 Fe-59 -9.57E+00 1.01E+01 3.13E+01 TG 08 284898001 8/23/2011 1-131 5.64E+00 7.90E+00 2.59E+01 TG 08 284898001 8/23/2011 K-40 3.87E+03 2.3 1E+02 1.31E+02 TG 08 284898001 8/23/2011 La- 140 -3.15E+01 1.03E+01 1.75E+01 TG 08 284898001 8/23/2011 Mn-54 5.95E+00 4.56E+00 1.47E+01 TG 08 284898001 8/23/2011 Nb-95 -8.49E+00 6.85E+00 1.53E+01 TG 08 284898001 8/23/2011 Ru-103 -6.47E+00 4.38E+00 1.33E+01 TG 08 284898001 8/23/2011 Ru-106 -7.19E+00 3.63E+01 1.20E+02 196

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

TG TG TG 284898001 284898001 284898001 8/23/2011 8/23/2011 8/23/2011 Sb- 124 Sb-125 Se-75

-3.47E+00 5.35E+00

-5.85E+00 9.77E+00 1.11E+01 5.06E+00 3.16E+01 3.62E+01 1.59E+01 I

2.41E+01 I

TG 284898001 8/23/2011 Th-228 1.44E+01 1.12E+01 TG 284898001 8/23/2011 Zn-65 -3.67E+00 1.33E+01 3.35E+01 TG 284898001 8/23/2011 Zr-95 -5.16E+00 7.82E+00 2.47E+01 TG 286562001 9/20/2011 Ac-228 2.6 1E+01 2.26E+0 I 4.26E+01 TG TG TG 286562001 286562001 286562001 9/20/2011 9/20/2011 9/20/2011 Ag-108m Ag-110m Ba-140

-2.50E+00 2.95E+00 9.52E+00 2.34E+00 2.96E+00 1.39E+01 7.46E+00 9.70E+00 4.63E+01 I

TG TG TG 286562001 286562001 286562001 9/20/2011 9/20/2011 9/20/2011 Be-7 Ce-141 Ce-144 1.20E+03

-5.69E+00

-3.21E+01 8.39E+01 9.73E+00 1.68E+01 1.0 1E+02 2.02E+01 4.79E+0 1 I

TG 286562001 9/20/2011 Co-57 -4.23E+00 2.89E+00 6.3 1E+00 TG 286562001 9/20/2011 Co-58 1.37E+00 3.59E+00 1.18E+01 TG 286562001 9/20/2011 Co-60 2.60E+00 3.26E+00 1.09E+01 TG 286562001 9/20/2011 Cr-51 -7.73E+00 4.13E+01 1.32E+02 TG 286562001 9/20/2011 Cs-134 -2.32E+00 3.66E+00 1.1 6E+0 1 TG 286562001 9/20/2011 Cs-137 2.02E+00 3.02E+00 9.98E+00 TG 286562001 9/20/2011 Fe-59 -1.49E+01 9.19E+00 2.71E+01

-4.85E+01 3.19E+01 9.23E+01 TG TG 286562001 286562001 9/20/2011 9/20/2011 1-131 K-40 4.11E+03 2.25E+02 9.26E+01 DL 1

TG 286562001 9/20/2011 La-140 9.52E+00 1.39E+01 4.63E+01 TG 286562001 9/20/2011 Mn-54 -4.66E+00 3.22E+00 9.45E+00 TG 286562001 9/20/2011 Nb-95 2.45E+00 3.59E+00 1.18E+01 TG 286562001 9/20/2011 Ru-103 -3.47E+00 3.90E+00 1.25E+01 TG TG TG 286562001 286562001 286562001 9/20/2011 9/20/2011 9/20/2011 Ru-106 Sb-124 Sb-125 1.02E+01 7.87E+00 6.75E+00 2.69E+01 8.05E+00 7.30E+00 8.92E+01 2.69E+01 2.44E+01 1

TG TG TG 286562001 286562001 286562001 9/20/2011 9/20/2011 9/20/2011 Se-75 Th-228 Zn-65

-5.38E+00

-1.01E+01

-1.45E+01 4.08E+00 7.58E+00 7.70E+00 1.23E+01 1.56E+01 2.19E+01 i

TG 286562001 9/20/2011 Zr-95 -4.34E+00 6.46E+00 2.05E+01 TG 288565001 10/18/2011 Ac-228 1.27E+01 3.03E+01 5.85E+01 TG TG TG 288565001 288565001 288565001 10/18/2011 10/18/2011 10/18/2011 Ag-108m Ag-i 10m Ba-140 1.56E+00

-4.79E+00 4.12E+00 3.20E+00 3.38E+00 5.40E+00 1.04E+01 1.01E+01 1.85E+01 I

TG 288565001 10/18/2011 Be-7 2.94E+03 1.58E+02 9.87E+01 TG 288565001 10/18/2011 Ce-141 6.40E+00 5.87E+00 1.85E+01 TG 288565001 10/18/2011 Ce-144 5.47E+00 2.04E+01 6.57E+01 I

TG 288565001 10/18/2011 Co-57 -6.5 1E-01 2.62E+00 8.41 E+00 TG 288565001 10/18/2011 Co-58 -7.95E+00 4.01E+00 1.07E+01 TG 288565001 10/18/2011 Co-60 1.18E+00 3.82E+00 1.26E+01 TG 288565001 10/18/2011 Cr-51 5.40E+01 3.70E+01 1.18E+02 TG TG TG 288565001 288565001 288565001 10/18/2011 10/18/2011 10/18/2011 Cs-134 Cs-137 Fe-59 7.14E+00

-5.51E+00

-1.31E+01 4.5 1E+00 5.07E+00 8.39E+00 1.44E+01 1.21E+01 2.44E+01 I

TG TG TG 288565001 288565001 288565001 10/18/2011 10/18/2011 10/18/2011 1-131 K-40 La-140 7.97E+00 3.72E+03 4.12E+00 6.83E+00 2.26E+02 5.40E+00 2.20E+01 1.28E+02 1.85E+01 U I

I TG 288565001 10/18/2011 Mn-54 8.50E+00 4.07E+00 1.24E+01 U 197 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TG 08 288565001 10/18/2011 Nb-95 14.91E+00 3.84E+00 1.25E+01 TG 08 288565001 10/18/2011 Ru-103 -1.37E+00 3.47E+00 1.16E+01 TG 08 288565001 10/18/2011 Ru-106 -4.77E+0 1 3.16E+01 9.35E+01 TG 08 288565001 10/18/2011 Sb-124 1.23E+01 9.05E+00 3.06E+01 TG 08 288565001 10/18/2011 Sb-125 2.04E+01 1.1OE+01 3.36E+01 TG 08 288565001 10/18/2011 Se-75 2.27E+00 4.78E+00 1.59E+01 TG 08 288565001 10/18/2011 Th-228 1.18E+01 9.16E+00 2.21E+01 TG 08 288565001 10/18/2011 Zn-65 1.58E+01 1.05E+01 3.01E+01 TG 08 288565001 10/18/2011 Zr-95 3.57E+00 6.16E+00 2.04E+0 1 TG 09 278773002 5/21/2011 Ac-228 5.5 1E+00 1.18E+01 2.14E+01 TG 09 278773002 5/21/2011 Ag-108m 3.94E-01 1.27E+00 4.27E+00 TG 09 278773002 5/21/2011 Ag-il0m -1.39E+00 1.66E+00 5.13E+00 TG 09 278773002 5/21/2011 Ba-140 1.19E+00 4.69E+00 1.58E+01 TG 09 278773002 5/21/2011 Be-7 1.04E+03 6.24E+01 4.95E+01 TG 09 278773002 5/21/2011 Ce-141 -4.33E+00 2.99E+00 9.14E+00 TG 09 278773002 5/21/2011 Ce-144 -4.43E+00 8.93E+00 2.96E+01 TG 09 278773002 5/21/2011 Co-57 9.49E-0 1 1.12E+00 3.76E+00 TG 09 278773002 5/21/2011 Co-58 -9.32E-01 1.60E+00 5.24E+00 TG 09 278773002 5/21/2011 Co-60 1.39E-01 2.OOE+00 6.5 1E+00 TG 09 278773002 5/21/2011 Cr-51 1.79E+01 1.81E+01 5.76E+01 TG 09 278773002 5/21/2011 Cs-134 5.56E+00 2.44E+00 7.3 1E+00 TG 09 278773002 5/21/2011 Cs-137 3.12E+00 1.92E+00 6.12E+00 TG 09 278773002 5/21/2011 Fe-59 -1.42E+00 4.80E+00 1.56E+01 TG 09 278773002 5/21/2011 1-131 -2.69E+00 5.90E+00 1.97E+01 TG 09 278773002 5/21/2011 K-40 3.34E+03 1.77E+02 5.09E+01 TG 09 278773002 5/21/2011 La-140 1.19E+00 4.69E+00 1.58E+01 TG 09 278773002 5/21/2011 Mn-54 2.35E+00 1.79E+00 6.01E+00

TG 09 278773002 5/21/2011 Nb-95 4.78E-01 2.02E+00 6.52E+00 TG 09 278773002 5/21/2011 Ru-103 8.49E-01 1.78E+00 5.98E+00 TG 09 278773002 5/21/2011 Ru-106 -8.60E+00 1.41E+01 4.45E+01 TG 09 278773002 5/21/2011 Sb-124 -8.05E+00 4.24E+00 1.05E+01 TG 09 278773002 5/21/2011 Sb-125 1.27E+01 4.84E+00 1.40E+01 TG 09 278773002 5/21/2011 Se-75 1.71E+00 2.11E+00 6.83E+00 TG 09 278773002 5/21/2011 Th-228 -7.43E+00 4.15E+00 9.77E+00 TG 09 278773002 5/21/2011 Zn-65 -4.45E+00 4.44E+00 1.37E+01 TG 09 278773002 5/21/2011 Zr-95 -5. 1OE+00 3.57E+00 1.01E+01 TG 09 280316002 6/14/2011 Ac-228 3.11 E+01 1.82E+01 3.42E+01 TG 09 280316002 6/14/2011 Ag-108m .-2.19E+00 1.90E+00 5.93E+00 TG 09 280316002 6/14/2011 Ag-110m -2.34E+00 2.18E+00 6.57E+00 TG 09 280316002 6/14/2011 Ba-140 -2.93E+00 4.19E+00 1.32E+01 TG 09 280316002 6/14/2011 Be-7 1.05E+03 6.17E+01 6.06E+01 TG 09 280316002 6/14/2011 Ce-141 6.76E+00 3.98E+00 1.14E+01 TG 09 280316002 6/14/2011 Ce-144 4.63E+00 1.20E+01 4.02E+01 TG 09 280316002 6/14/2011 Co-57 1.41E-01 1.55E+00 5.22E+00 TG 09 280316002 6/14/2011 Co-58 -1.68E+00 2.44E+00 7.92E+00 TG 09 280316002 6/14/2011 Co-60 -6.60E-01 2.72E+00 8.66E+00 TG 09 280316002 6/14/2011 Cr-51 8.03E+00 2.13E+01 7.26E+01 TG 09 280316002 6/14/2011 Cs-134 4.19E+00 3.16E+00 9.35E+00 TG 09 280316002 6/14/2011 Cs-137 9.26E-01 2.43E+00 7.89E+00 TG 09 280316002 6/14/2011 Fe-59 -7.04E+00 5.67E+00 1.69E+01 TG 09 280316002 6/14/2011 1-131 5.08E+00 5.06E+00 1.70E+01 198

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS U

TG TG TG 280316002 280316002 280316002 6/14/2011 6/14/2011 6/14/2011 K-40 La-140 Mn-54 3.73E+03

-2.93E+00

-2.20E+00 1.98E+02 4.19E+00 2.41E+00 8.54E+01 1.32E+01 7.68E+00 I

I TG 280316002 6/14/2011 Nb-95 5.52E+00 2.69E+00 8.49E+00 TG 280316002 6/14/2011 Ru-103 1.30E+00 2.35E+00 7.78E+00 TG 280316002 6/14/2011 Ru-106 2.23E+01 2.15E+01 6.98E+01 TG 280316002 6/14/2011 Sb-124 3.12E+00 4.85E+00 1.64E+01 TG TG TG 280316002 280316002 280316002 6/14/2011 6/14/2011 6/14/2011 Sb-125 Se-75 Th-228

-3.32E+00 1.77E+00

-3.81E+00 5.54E+00 2.72E+00 6.06E+00 1.80E+01 8.75E+00 1.48E+01 I

TG TG TG 280316002 280316002 283013002 6/14/2011 6/14/2011 7/26/2011 Zn-65 Zr-95 Ac-228 3.69E+00 2.3 1E+00 5.90E+01 6.53E+00 4.15E+00 2.34E+01 1.88E+01 1.41E+01 2.96E+01 I

TG 283013002 7/26/2011 Ag-108m 1.50E-01 1.96E+00 6.54E+00 TG 283013002 7/26/2011 Ag-i 10m -3.68E+00 2.4 1E+00 6.89E+00 TG 283013002 7/26/2011 Ba-140 -5.48E+00 4.65E+00 1.38E+01 TG 283013002 7/26/2011 Be-7 1.01E+03 6.81E+01 6.68E+01 TG 283013002 7/26/2011 Ce-141 1.41E+00 3.7 1E+00 1.24E+01 TG 283013002 7/26/2011 Ce-144 -1.49E+01 1.33E+01 4.20E+01 TG 283013002 7/26/2011 Co-57 2.22E+00 1.71E+00 5.59E+00 TG TG TG 283013002 283013002 283013002 7/26/2011 7/26/2011 7/26/2011 Co-58 Co-60 Cr-51

-1.01E+00

-1.54E+01

-3.95E+01 2.40E+00 6.45E+00 2.37E+01 7.92E+00 9.50E+00 7.14E+01 I

TG 283013002 7/26/2011 Cs-134 4.39E+00 3.08E+00 1.02E+01 TG 283013002 7/26/2011 Cs-137 2.85E+00 2.7 1E+00 8.77E+00 TG 283013002 7/26/2011 Fe-59 5.5 1E-01 5.8 1E+00 1.91E+01 TG 283013002 7/26/2011 1-131 4.43E+00 5.18E+00 1.74E+01 TG 283013002 7/26/2011 K-40 3.54E+03 1.92E+02 7.06E+01 TG 283013002 7/26/2011 La-140 -5.48E+00 4.64E+00 1.38E+01 TG 283013002 7/26/2011 Mn-54 3.68E+00 2.67E+00 8.8 1E+00 TG TG TG 283013002 283013002 283013002 7/26/2011 7/26/2011 7/26/2011 Nb-95 Ru-103 Ru-106

-1.79E+00

-7.19E-02 5.36E+00 4.23E+00 2.47E+00 2.23E+01 8.89E+00 8.13E+00 7.28E+01 I

TG 283013002 7/26/2011 -1.00E+01 7.33E+00 1.66E+01 I

Sb-124 TG 283013002 7/26/2011 Sb-125 -3.25E+00 6.18E+00 2.02E+01 TG 283013002 7/26/2011 Se-75 -3.54E+00 3.08E+00 9.26E+00 TG 283013002 7/26/2011 Th-228 1.96E+01 7.76E+00 1.27E+01 TG TG TG 283013002 283013002 284898002 7/26/2011 7/26/2011 8/23/2011 Zn-65 Zr-95 Ac-228 2.94E-01 3.44E+00 2.76E+01 8.05E+00 4.63E+00 2.07E+01 2.02E+01 1.57E+01 4.96E+01 U

TG TG TG 284898002 284898002 284898002 8/23/2011 8/23/2011 8/23/2011 Ag-108m Ag-110m Ba-140

-2.95E-01

-1.36E+01

-1.76E+00 2.37E+00 4.36E+00 5.08E+00 7.64E+00 8.43E+00 1.60E+01 I

TG 284898002 8/23/2011 Be-7 9.99E+02 7.2 1E+01 8.24E+01 TG TG TG 284898002 284898002 284898002 8/23/2011 8/23/2011 8/23/2011 Ce-141 Ce-144 Co-57

-3.5 1E+00 4.60E+00

-2.56E+00 5.30E+00 1.51E+01 1.98E+00 1.38E+01 4.88E+01 5.96E+00 U

U U

I TG 284898002 8/23/2011 Co-58 7.53E-01 2.88E+00 9.49E+00 U TG 284898002 8/23/2011 Co-60 7.03E-01 3.OOE+00 9.96E+00 U VI TG 284898002 8/23/2011 Cr-51 2.06E+0 1 2.56E+01 8.46E+01 U I

TG 284898002 8/23/2011 Cs-134 -7.68E-01 3.63E+00 1.18E+01 U 199 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TG 284898002 8/23/2011 Cs-137 6.38E-01 4.35E+00 1.23E+01 U TG 284898002 8/23/2011 Fe-59 -5.73E+00 6.73E+00 2.13E+01 U TG 284898002 8/23/2011 1-131 -4.94E+00 5.71E+00 1.79E+01 U TG 284898002 8/23/2011 K-40 3.9 1E+03 2.14E+02 1.00E+02 TG 284898002 8/23/2011 La- 140 -1.76E+00 5.08E+00 1.60E+01 U TG 284898002 8/23/2011 Mn-54 -1.12E+00 2.90E+00 9.29E+00 U TG 284898002 8/23/2011 Nb-95 4.62E-01 3.04E+00 1.00E+01 U TG 284898002 8/23/2011 Ru- 103 -1.59E+00 3.08E+00 9.61E+00 U TG 284898002 8/23/2011 Ru-106 -1.71E+01 2.59E+01 8.36E+01 U TG 284898002 8/23/2011 Sb-124 -9.99E+00 6.88E+00 1.94E+01 U TG 284898002 8/23/2011 Sb-125 1.13E+01 7.79E+00 2.48E+01 U TG 284898002 8/23/2011 Se-75 -7.24E-01 3.45E+00 1.15E+01 U TG 284898002 8/23/2011 Th-228 4.38E+00 7.02E+00 1.94E+01 U TG 284898002 8/23/2011 Zn-65 -4.42E+00 7.73E+00 2.13E+0 1 U TG 284898002. 8/23/2011 Zr-95 3.48E-02 5.30E+00 1.74E+01 U TG 286562002 9/20/2011 Ac-228 7.22E+01 1.53E+01 3.81 E+0 1 TG 286562002 9/20/2011 Ag-108m -5.94E-01 2.68E+00 8.65E+00 U TG 286562002 9/20/2011 Ag-I 10m 8.09E-01 3.02E+00 1.01E+01 U TG 286562002 9/20/2011 Ba-140 -2.98E+00 1.52E+01 5.OOE+01 U TG 286562002 9/20/2011 Be-7 i .74E+03 1.06E+02 1.12E+02 TG 286562002 9/20/2011 Ce-141 -7.85E+00 1.20E+01 2.61E+01 U TG 286562002 9/20/2011 Ce-144 -2.27E+01 1.91E+01 6.07E+01 U TG 286562002 9/20/2011 Co-57 1.27E+00 2.34E+00 7.89E+00 U TG 286562002 9/20/2011 Co-58 -1.08E-01 3.61E+00 1.19E+01 U TG 286562002 9/20/2011 Co-60 -3.24E+00 3.13E+00 9.78E+00 U TG 286562002 9/20/2011 Cr-51 4.54E+01 4.99E+01 1.62E+02 U TG 286562002 9/20/2011 Cs-134 2.69E+00 3.82E+00 1.27E+01 U TG 286562002 9/20/2011 Cs-137 1.21E+00 3.14E+00 1.05E+01 U TG 286562002 9/20/2011 Fe-59 -1.84E-01 8.80E+00 2.86E+01 U TG 286562002 9/20/2011 1-131 1.58E+01 3.50E+01 1.14E+02 U DL TG 286562002 9/20/2011 K-40 3.05E+03 1.66E+02 9.84E+0 1 TG 286562002 9/20/2011 La-140 -2.98E+00 1.52E+01 5.OOE+01 U TG 286562002 9/20/2011 Mn-54 4.44E+00 3.29E+00 1.06E+01 U TG 286562002 9/20/2011 Nb-95 2.2 1E+00 3.97E+00 1.32E+01 U TG 286562002 9/20/2011 Ru-103 6.28E-01 4.45E+00 1.44E+01 U TG -286562002 9/20/2011 Ru-106 -4.30E+01 3.01E+01 9.17E+01 U TG 286562002 9/20/2011 Sb-124 -4.87E+00 8.70E+00 2.78E+01 U TG 286562002 9/20/2011 Sb-125 -3.40E+00 8.23E+00 2.64E+01 U TG 286562002 9/20/2011 Se-75 1.52E-01 4.52E+00 1.49E+01 U TG 286562002 9/20/2011 Th-228 1.64E+01 1.35E+01 1.79E+01 U TG 286562002 9/20/2011 Zn-65 -1.91E+01 1.16E+01 2.36E+01 U TG 286562002 9/20/2011 Zr-95 6.02E+00 6.82E+00 2.26E+01 U TG 288565002 10/18/2011 Ac-228 4.07E+01 2.86E+01 4.69E+01 U TG 288565002 10/18/2011 Ag-108m -2.49E+00 2.89E+00 9.2 1E+00 U TG 288565002 10/18/2011 Ag-110m -6.62E+00 3.57E+00 9.65E+00 U TG 288565002 10/18/2011 Ba-140 7.9 1E+00 5.86E+00 1.98E+01 U TG 288565002 10/18/2011 Be-7 3.97E+03 2.OOE+02 9.83E+01 TG 288565002 10/18/2011 Ce-141 -1.64E+00 5.34E+00 1.76E+01 U TG 288565002 10/18/2011 Ce-144 -2.OOE+00 1.93E+01 6.44E+0 I U TG 288565002 10/18/2011 Co-57 8.93E-01 2.38E+00 8.02E+00 U TG 288565002 10/18/2011 Co-58 2.OOE+00 3.60E+00 1.22E+01 U 200

Seabrook REMLP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

TG TG TG 09 09 09 288565002 288565002 288565002 10/18/2011 10/18/2011 10/18/2011 Co-60 Cr-51 Cs-134 4.98E+00

-3.88E+01 1.62E+01 4.12E+00 3.26E+01 7.42E+00 1.35E+01 1.04E+02 1.57E+01 U

U UI I

TG 09 288565002 10/18/2011 Cs-137 4.6 1E+00 3.78E+00 1.22E+01 U TG TG 09 09 288565002 288565002 10/18/2011 10/18/2011 Fe-59 1-131 8.25E+00 3.93E+00 3.40E+03 8.08E+00 6.14E+00 2.02E+02 2.67E+01 2.08E+01 1.14E+02 U

U I TG 09 288565002 10/18/2011 K-40 TG TG TG 09 09 09 288565002 288565002 288565002 10/18/2011 10/18/2011 10/18/2011 La- 140 Mn-54 Nb-95 7.9 1E+00 1.62E+00

-4.15E+00 5.85E+00 3.53E+00 6.39E+00 1.98E+01 1.19E+0 I 1.30E+01 U

U U

I TG TG TG 09 09 09 288565002 288565002 288565002 10/18/2011 10/18/2011 10/18/2011 Ru-103 Ru-106 Sb-124

-3.76E+00 5.77E+01

-6.09E+00 3.40E+00 3.34E+01 7.16E+00 1.05E+01 1.05E+02 2.18E+01 U

U U

I 1.06E+01 9.32E+00 3.08E+01 U I

TG 09 28.8565002 10/18/2011 Sb-125 TG 09 288565002 10/18/2011 Se-75 -3.23E+00 4.59E+00 1.43E+01 U TG 09 288565002 10/18/2011 Th-228 4.07E+01 9.3 1E+00 1.86E+01 TG 09 288565002 10/18/2011 Zn-65 1.06E+01 9.61 E+00 2.78E+01 U TG TG TG 09 10 10 288565002 278773003 278773003 10/18/2011 5/21/2011 5/21/2011 Zr-95 Ac-228 Ag-108m

-6.11E+00 1.52E+01 5.07E-01 6.60E+00 1.66E+01 2.01E+00 2.12E+01 3.96E+01 6.72E+00 U

U U

U TG TG TG 10 10 10 278773003 278773003 278773003 5/21/2011 5/21/2011 5/21/2011 Ag-I 10m Ba-140 Be-7

-6.34E-01

-1.31E+01 1.02E+03 2.57E+00 8.35E+00 7.25E+01 7.15E+00 1.84E+01 7.46E+01 U

U 3 5/21/2011 1.2 1E+00 4.OOE+00 1.34E+01 U U

TG 10 278773003 Ce-141 TG 10 278773003 5/21/2011 Ce-144 -2.25E+01 1.41E+01 4.2 1E+01 U TG 10 278773003 5/21/2011 Co-57 1.69E+00 1.70E+00 5.66E+00 U TG 10 278773003 5/21/2011 Co-58 -7.35E+00 4.08E+00 8.74E+00 U TG TG TG 10 10 10 278773003 278773003 278773003 5/21/2011 5/21/2011 5/21/2011 Co-60 Cr-51 Cs-134

-5.20E+00

-3.10E+01 3.94E+00 2.95E+00 2.56E+01 3.OOE+00 7.70E+00 8.11E+01 1.01E+01 U

U U

I TG TG TG 10 10 10 278773003 278773003 278773003 5/21/2011 5/21/2011 5/21/2011 Cs- 137 Fe-59 1-131 9.93E+01 2.08E+00

-2.OOE+00 7.08E+00 6.60E+00 8.56E+00 7.15E+00 2.18E+01 2.87E+01 U

U I

5/21/2011 3.39E+03 1.84E+02 6.98E+01 I

TG 10 278773003 K-40 TG 10 278773003 5/21/2011 La- 140 -1.31E+01 8.33E+00 1.84E+01 U TG 10 278773003 5/21/2011 Mn-54 -1.85E+00 2.5 1E+00 8.09E+00 U TG 10 278773003 5/21/2011 Nb-95 -7.93E+00 4.59E+00 8.65E+00 U TG TG TG 10 10 10 278773003 278773003 278773003 5/21/2011 5/21/2011 5/21/2011 Ru-103 Ru-106 Sb-124

-4.48E+00 8.19E+00 9.11E+00 2.94E+00 2.08E+01 5.34E+00 8.58E+00 6.80E+01 1.84E+01 U

U U

I TG TG TG 10 10 10 278773003 278773003 278773003 5/21/2011 5/21/2011 5/21/2011 Sb-125 Se-75 Th-228

-1.24E+00 5.96E-01 2.78E+00 5.94E+00 3.17E+00 6.18E+00 1.97E+01 1.02E+01 1.61E+01 U

U U

I I

TG 10 278773003 5/21/2011 Zn-65 2.58E+00 6.30E+00 2.08E+01 U TG 10 278773003 5/21/2011 Zr-95 4.78E+00 4.5 1E+00 1.53E+01 U TG 10 284947001 5/21/2011 Ac-228 1.49E+00 6.54E+00 1.88E+01 U TG 10 284947001 5/21/2011 Ag-108m 1.27E-01 1.01E+00 3.33E+00 U TG TG TG 10 10 10 284947001 284947001 284947001 5/21/2011 5/21/2011 5/21/2011 Ag-110m Ba-140 Be-7 3.56E+00 3.50E+02 9.19E+02 1.85E+00 3.17E+02 8.26E+01 5.06E+00 0.OOE+00 1.07E+02 U

UI I TG 10 284947001 5/21/2011 Ce-141 3.01E+01 1.52E+01 4.50E+01 U I

201 I

Seabrook REMIP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TG 284947001 5/21/2011 Ce-144 -1.54E+01 9.35E+00 2.69E+01 TG 284947001 5/21/2011 Co-57 -2.57E+00 1.26E+00 3.46E+00 TG 284947001 5/21/2011 Co-58 -2.92E+00 2.97E+00 9.39E+00 TG 284947001 5/21/2011 Co-60 2.24E+00 1.45E+00 4.76E+00 TG 284947001 5/21/2011 Cr-51 2.38E+02 1.24E+02 3.84E+02 TG 284947001 5/21/2011 Cs-134 1.41E+00 1.68E+00 5.68E+00 TG 284947001 5/21/2011 Cs-137 3.79E+01 3.14E+00 3.88E+00 TG 284947001 5/21/2011 Fe-59 6.75E+00 1.31E+01 4.37E+01 TG 284947001 5/21/2011 1-131 6.82E+03 7.36E+03 0.OOE+00 TG 284947001 5/21/2011 K-40 2.44E+03 1.22E+02 4.15E+01 TG 284947001 5/21/2011 La- 140 3.50E+02 3.17E+02 0.OOE+00 TG 284947001 5/21/2011 Mn-54 -2.88E+00 1.64E+00 4.7 1E+00 TG 284947001 5/21/2011 Nb-95 -4.35E+00 3.80E+00 1.13E+01 TG 284947001 5/21/2011 Ru-103 -6.96E+00 6.43E+00 1.97E+01 TG 284947001 5/21/2011 Ru-106 1.41E+01 1.30E+01 4.2 1E+01 TG 284947001 5/21/2011 Sb-124 3.38E+00 7.89E+00 2.61E+01 TG 284947001 5/21/2011 Sb-125 -1.66E+00 3.34E+00 1.08E+01 TG 284947001 5/21/2011 Se-75 - 1.19E+00 2.52E+00 8.33E+00 TG 284947001 5/21/2011 Th-228 4.95E+00 4.13E+00 7.37E+00 TG 284947001 5/21/2011 Zn-65 3.48E+00 4.19E+00 1.40E+01 TG 284947001 5/21/2011 Zr-95 -1.37E+01 7.06E+00 1.87E+01 TG 280316003 6/14/2011 Ac-228 5.57E+01 2.64E+01 4.63E+01 TG 280316003 6/14/2011 Ag-108m 1.60E+00 1.93E+00 6.42E+00 TG 280316003 6/14/2011 Ag-110m 3.2 1E+00 2.98E+00 8.45E+00 TG 280316003 6/14/2011 Ba-140 3.73E+00 5. 1OE+00 1.72E+01 TG 280316003 6/14/2011 Be-7 6.77E+02 5.4 1E+01 6.94E+01 TG 280316003 6/14/2011 Ce-141 -2.73E+00 2.98E+00 9.48E+00 TG 280316003 6/14/2011 Ce-144 3.98E+00 1.01E+01 3.35E+01 TG 280316003 6/14/2011 Co-57 2.47E+00 1.37E+00 4.29E+00 TG 280316003 6/14/2011 Co-58 -3.78E+00 2.97E+00 9.06E+00 TG 280316003 6/14/2011 Co-60 -9.98E-01 3.06E+00 1.01E+01 TG 280316003 6/14/2011 Cr-51 -1.04E+01 2.08E+01 6.91 E+0 I TG 280316003 6/14/2011 Cs-134 2.26E+00 3.3 1E+00 1.11E+01 TG 280316003 6/14/2011 Cs-137 1.04E+01 3.53E+00 6.85E+00 TG 280316003 6/14/2011 Fe-59 7.11E+00 6.88E+00 2.25E+01 TG 280316003 6/14/2011 1-131 2.91 E+00 5.04E+00 1.70E+01 TG 280316003 6/14/2011 K-40 3.65E+03 1.90E+02 8.71E+01 TG 280316003 6/14/2011 La-140 3.73E+00 5.1OE+00 1.72E+01 TG 280316003 6/14/2011 Mn-54 5.12E+00 2.96E+00 9.53E+00 TG 280316003 6/14/2011 Nb-95 1.82E+00 2.82E+00 9.53E+00 TG 280316003 6/14/2011 Ru-103 -2.66E+00 2.53E+00 7.77E+00 TG 280316003 6/14/2011 Ru-106 -5.07E+00 2.37E+01 7.58E+01 TG 280316003 6/14/2011 Sb-124 4.08E+00 6.39E+00 2.15E+01 TG 280316003 6/14/2011 Sb-125 1.36E+01 6.76E+00 2.09E+01 TG 280316003 6/14/2011 Se-75 -1.22E+00 2.70E+00 8.48E+00 TG 280316003 6/14/2011 Th-228 2.1OE+01 6.70E+00 1.1OE+01 TG 280316003 6/14/2011 Zn-65 -6.53E+00 7.02E+00 2.15E+01 TG 280316003 6/14/2011 Zr-95 2.70E+00 4.82E+00 1.63E+01 TG 283183001 6/14/2011 Ac-228 4.83E+01 2.53E+01 5.70E+01 TG 283183001 6/14/2011 Ag-108m -4.19E+00 3.28E+00 9.69E+00 TG 283183001 6/14/2011 Ag-ll10m -1.76E+00 4.38E+00 1.23E+01 202

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

TG TG TG 10 10 10 283183001 283183001 283183001 6/14/2011 6/14/2011 6/14/2011 Ba-140 Be-7 Ce-141

-4.17E+01 5.88E+02 4.07E+01 8.79E+01 1.09E+02 1.82E+01 2.84E+02 1.7 1E+02 5.2 1E+01 U

U 1

TG 10 283183001 6/14/2011 Ce-144 -1.83E+01 2.23E+01 6.92E+01 U TG 10 283183001 6/14/2011 Co-57 -1.73E+00 2.84E+00 8.97E+00 U TG 10 283183001 6/14/2011 Co-58 5.44E+00 6.03E+00 1.99E+01 U TG 10 283183001 6/14/2011 Co-60 3.35E+00 3.75E+00 1.26E+01 U TG 10 283183001 6/14/2011 Cr-51 1.68E+02 1.18E+02 3.79E+02 U TG 10 283183001 6/14/2011 Cs-134 6.95E+00 4.39E+00 1.42E+01 U TG 10 283183001 6/14/2011 Cs-137 1.41E+01 5.94E+00 1.1 7E+01 M TG TG TG 10 10 10 283183001 283183001 283183001 6/14/2011 6/14/2011 6/14/2011 Fe-59 1-131 K-40 1.72E+00

-6.93E+02 3.30E+03 1.77E+01 4.93E+02 2.15E+02 5.92E+01 1.46E+03 1.31E+02 U

U DL I TG 10 283183001 6/14/2011 La-140 -4.17E+01 8.78E+01 2.84E+02 TG TG 10 10 283183001 283183001 6/14/2011 6/14/2011 Mn-54 Nb-95

-4.08E+00 5.27E+00 1.27E+01 4.33E+00 6.42E+00 8.78E+00 1.32E+01 2.12E+01 2.90E+0 1 I

TG 10 283183001 6/14/2011 Ru-103 TG TG TG 10 10 10 283183001 283183001 283183001 6/14/2011 6/14/2011 6/14/2011 Ru-106 Sb-124 Sb-125 1.20E+01

-2.36E+00

-6.98E+00 3.30E+01 1.56E+01 9.86E+00 1.11 E+02 5.15E+01 3.07E+01 I

TG TG TG 10 10 10 283183001 283183001 283183001 6/14/2011 6/14/2011 6/14/2011 Se-75 Th-228 Zn-65 4.83E+00 1.30E+01 3.91 E+00 6.04E+00 1.06E+01 9.90E+00 2.01E+01 2.3 1E+01 3.32E+01 I

TG 10 283183001 6/14/2011 Zr-95 1.11E+01 1.12E+01 3.7 1E+01 TG 10 283013003 7/26/2011 Ac-228 -1.37E+01 2.24E+01 5.05E+01 TG 10 283013003 7/26/2011 Ag-108m -2.19E+00 2.36E+00 7.44E+00 TG 10 283013003 7/26/2011 Ag-110m 9.5 1E-01 3.44E+00 9.72E+00 TG 10 283013003 7/26/2011 Ba-140 5.25E+00 5.94E+00 2.01E+01 TG 10 283013003 7/26/2011 Be-7 6.66E+02 5.74E+01 8.2 1E+01 TG 10 283013003 7/26/2011 Ce-141 -8.87E-01 3.42E+00 1.13E+01 I

TG 10 283013003 7/26/2011 Ce-144 -1.47E+01 1.24E+01 3.85E+01 TG 10 283013003 7/26/2011 Co-57 2.17E+00 1.57E+00 5.07E+00 TG 10 283013003 7/26/2011 Co-58 1.01E+00 3.14E+00 1.06E+01 TG 10 283013003 7/26/2011 Co-60 4.3 1E+00 3.60E+00 1.22E+01 TG TG 10 10 283013003 283013003 7/26/2011 7/26/2011 Cr-51 Cs-134

-4.47E+00 7.4 1E+00 2.73E+01 2.44E+01 4.18E+00 5.54E+00 8.22E+01 1.35E+01 1.05E+01 I

TG 10 283013003 7/26/2011 Cs-137 TG TG TG 10 10 10 283013003 283013003 283013003 7/26/2011 7/26/2011 7/26/2011 Fe-59 1-131 K-40 8.2 1E+00

-1.89E+00 3.04E+03 7.97E+00 5.87E+00 1.66E+02 2.6 1E+01 1.95E+01 9.45E+01 I

TG TG TG 10 10 10 283013003 283013003 283013003 7/26/2011 7/26/2011 7/26/2011 La-140 Mn-54 Nb-95 5.25E+00 1.02E+00

-2.53E+00 5.94E+00 3.20E+00 3.11E+00 2.01E+01 1.07E+01 9.94E+00 U

U U

I TG 10 283013003 7/26/2011 Ru-103 -3.64E+00 3.02E+00 9.1 OE+00 U TG TG TG 10 10 10 283013003 283013003 283013003 7/26/2011 7/26/2011 7/26/2011 Ru-106 Sb-124 Sb-125

-5.42E-01

-8.1 OE+00 1.29E+01 2.76E+01 7.60E+00 7.90E+00 8.87E+01 2.24E+01 2.52E+01 U

U U

I TG TG TG 10 10 10 283013003 283013003 283013003 7/26/2011 7/26/2011 7/26/2011 Se-75 Th-228 Zn-65

-2.87E+00

-1.59E+00

-7.36E+00 3.3 1E+00 6.50E+00 8.12E+00 1.01E+01 1.85E+01 2.49E+0 1 U

U U

I I

TG 10 283013003 7/26/2011 Zr-95 8.33E+00 6.14E+00 2.04E+01 U 203 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TG 10 284898003 8/23/2011 Ac-228 4.48E+01 2.89E+01 6.30E+01 U TG 10 284898003 8/23/2011 Ag-108m 5.98E+00 3.90E+00 1.23E+01 U TG 10 284898003 8/23/2011 Ag-ll0m 4.09E+00 4.61E+00 1.35E+01 U TG 10 284898003 8/23/2011 Ba-140 1.39E-01 7.86E+00 2.62E+01 U TG 10 284898003 8/23/2011 Be-7 1.87E+03 1.30E+02 1.17E+02 TG 10 284898003 8/23/2011 Ce-141 1.25E+01 7.56E+00 2.30E+01 U TG 10 284898003 8/23/2011 Ce-144 2.56E+01 2.68E+01 8.48E+01 U TG 10 284898003 8/23/2011 Co-57 2.87E+00 3.45E+00 1.10E+01 U TG 10 284898003 8/23/2011 Co-58 4.97E+00 4.70E+00 1.54E+01 U TG 10 284898003 8/23/2011 Co-60 -2.08E+00 4.96E+00 1.57E+01 U TG 10 284898003 8/23/2011 Cr-51 -8.94E-01 4.13E+01 1.35E+02 U TG 10 284898003 8/23/2011 Cs-134 8.93E-01 5.23E+00 1.70E+01 U TG 10 284898003 8/23/2011 Cs-137 4.54E+01 9.60E+00 1.51E+01 M TG 10 284898003 8/23/2011 Fe-59 -6.75E+00 1.05E+01 3.32E+01 U TG 10 284898003 8/23/2011 1-131 -7.85E+00 8.79E+00 2.71E+01 U TG 10 284898003 8/23/2011 K-40 3.15E+03 2.16E+02 1.56E+02 TG 10 284898003 8/23/2011 La-140 1.39E-01 7.86E+00 2.62E+01 U TG 10 284898003 8/23/2011 Mn-54 2.61E-01 4.39E+00 1.42E+01 U TG 10 284898003 8/23/2011 Nb-95 -3.45E+00 4.67E+00 1.45E+01 U TG 10 284898003 8/23/2011 Ru-103 2.39E+00 4.25E+00 1.44E+01 U TG 10 284898003 8/23/2011 Ru-106 5.75E+01 4.1OE+01 1.34E+02 U TG 10 284898003 8/23/2011 Sb-124 -1.34E+00 1.05E+01 3.44E+01 U TG 10 284898003 8/23/2011 Sb-125 5.86E+00 1.13E+01 3.65E+01 U TG 10 284898003 8/23/2011 Se-75 1.83E+00 5.56E+00 1.84E+01 U TG 10 284898003 8/23/2011 Th-228 1.74E+01 1.80E+01 2.29E+01 U TG 10 284898003 8/23/2011 Zn-65 -2.14E+01 1.28E+01 3.12E+01 U TG 10 284898003 8/23/2011 Zr-95 -8.58E+00 8.28E+00 2.50E+01 U TG 10 285892001 9/13/2011 Ac-228 2.34E+01 5.85E+01 9.41E+01 U TG 10 285892001 9/13/2011 Ag-108m 3.50E+00 5.23E+00 1.72E+01 U TG 10 285892001 9/13/2011 Ag-lr0m 6.42E-01 5.89E+00 1.72E+01 U TG 10 285892001 9/13/2011 Ba-140 -2.03E+00 8.94E+00 2.87E+01 U TG 10 285892001 9/13/2011 Be-7 3.17E+03 1.91E+02 1.48E+02 TG 10 285892001 9/13/2011 Ce-141 -2.26E+00 8.45E+00 2.70E+01 U TG 10 285892001 9/13/2011 Ce-144 6.48E+01 3.50E+01 1.06E+02 U TG 10 285892001 9/13/2011 Co-57 -3.93E+00 4.13E+00 1.28E+01 U TG 10 285892001 9/13/2011 Co-58 5.15E+00 5.87E+00 1.96E+01 U TG 10 285892001 9/13/2011 Co-60 1.49E+00 9.02E+00 2.45E+01 U TG 10 285892001 9/13/2011 Cr-51 2.82E+01 5.34E+01 1.78E+02 U TG 10 285892001 9/13/2011 Cs-134 5.34E+00 7.22E+00 2.42E+01 U TG 10 285892001 9/13/2011 Cs-137 2.04E+01 1.34E+01 1.88E+01 UI TG 10 285892001 9/13/2011 Fe-59 1.08E+01 1.29E+01 4.26E+01 U TG 10 285892001 9/13/2011 1-131 3.26E+00 9.28E+00 3.08E+01 U TG 10 285892001 9/13/2011 K-40 3.37E+03 2.49E+02 1.80E+02 TG 10 285892001 9/13/2011 La-140 -2.03E+00 8.94E+00 2.87E+01 U TG 10 285892001 9/13/2011 Mn-54 1.13E+01 6.40E+00 2.06E+01 U TG 10 285892001 9/13/2011 Nb-95 -6.07E+00 5.66E+00 1.73E+01 U TG 10 285892001 9/13/2011 Ru-103 7.19E+00 6.19E+00 1.99E+01 U TG 10 285892001 9/13/2011 Ru-106 1.38E+01 4.80E+01 1.63E+02 U TG 10 285892001 9/13/2011 Sb-124 8.09E+00 1.48E+01 4.95E+01 U TG 10 285892001 9/13/2011 Sb-125 -4.29E+00 1.58E+01 5.09E+01 U TG 10 285892001 9/13/2011 Se-75 -6.16E-02 7.30E+00 2.45E+01 U 204

I Seabrook REMP Summary of 2011 Data SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I TG TG 285892001 285892001 9/13/2011 9/13/2011 Th-228 Zn-65 4.24E+01

-5.OOE+00 2.55E+01 1.50E+01 3.90E+0I 4.73E+01 UI U 1 TG 285892001 9/13/2011 4.5 1E+00 1.04E+01 3.49E+0I U I

Zr-95' TG 286562003 9/20/2011 Ac-228 2.70E+01 3.43E+01 4.86E+0 1 U TG 286562003 9/20/2011 Ag-108m 9.77E-02 2.63E+00 8.70E+00 U TG 286562003 9/20/2011 Ag-110m 2.91E+00 3.67E+00 1.04E+01 U TG TG TG 286562003 286562003 286562003 9/20/2011 9/20/2011 9/20/2011 Ba-140 Be-7 Ce- 141

-1.77E+01 1.89E+03 8.34E+00 1.58E+01 1.24E+02 7.54E+00 4.83E+01 1.07E+02 2.40E+01 U

U I

U TG TG TG 286562003 286562003 286562003 9/20/2011 9/20/2011 9/20/2011 Ce-144 Co-57 Co-58

-2.98E+01 3.92E+00

5. 1OE+00 1.93E+01 2.47E+00 3.91E+00 5.66E+01 7.65E+00 1.27E+01 U

U I

TG 286562003 9/20/2011 Co-60 -1.16E+00 3.50E+00 1.12E+0 I TG 286562003 9/20/2011 Cr-51 -2.76E+0 1 4.65E+01 1.53E+02 U TG 286562003 9/20/2011 Cs-134 -6.06E+00 5.70E+00 1.25E+01 U 286562003 9/20/2011 3.63E+01 6.01E+00 1.04E+01 M TG Cs-137 U

TG TG 286562003 286562003 286562003 9/20/2011 9/20/2011 9/20/2011 Fe-59 1-131

-4.83E+00

-2.9 1E+01 2.45E+03 9.39E+00 3.28E+01 1.60E+02 3.01E+01 1.05E+02 1.02E+02 U DL I!

TG K-40 U

TG TG TG 286562003 286562003 286562003 9/20/2011 9/20/2011 9/20/2011 La-140 Mn-54 Nb-95

-1.77E+01

-6.50E-01 2.92E+00 1.58E+01 3.18E+00 3.99E+00 4.83E+01 1.06E+01 1.35E+01 U

U I

TG 286562003 9/20/2011 Ru-103 -7.15E+00 4.8 1E+00 1.42E+01 U TG 286562003 9/20/2011 Ru-106 1.56E+01 2.94E+0 I 9.55E+01 U TG 286562003 9/20/2011 Sb-124 1.61E+01 9.80E+00 3.25E+01 U TG 286562003 9/20/2011 Sb-125 -7.79E+00 8.36E+00 2.64E+01 U 286562003 9/20/2011 Se-75 -1.83E+00 4.19E+00 1.40E+01 U TG TG 286562003 9/20/2011 Th-228 7.40E+00 9.74E+00 1.70E+01 U TG 286562003 9/20/2011 Zn-65 2.38E+00 7.72E+00 2.55E+01 U TG 286562003 9/20/2011 Zr-95 4.50E+00 6.75E+00 2.29E+01 U TG 288565003 10/18/2011 Ac-228 8.80E+01 4.05E+01 7.3 1E+0I UI TG TG TG 288565003 288565003 288565003 10/18/2011 10/18/2011 10/18/2011 Ag- 108m Ag-il0m Ba-140

-8.76E-01

-1.39E+01

-9.28E+00 3.07E+00 6.12E+00 8.56E+00 1.01E+01 1.21E+01 2.55E+01 U

U U

I TG 288565003 10/18/2011 Be-7 3.15E+03 1.79E+02 1.05E+02 TG 288565003 10/18/2011 Ce-141 8.57E-01 5.14E+00 1.53E+01 U TG TG TG 288565003 288565003 288565003 10/18/2011 10/18/2011 10/18/2011 Ce-144 Co-57 Co-58 4.28E+00

-6.92E-01

-3.50E+00 1.55E+01 2.79E+00 4.45E+00 5.16E+0 I 6.55E+00 1.42E+01 U

U U

I U

TG TG TG 288565003 288565003 288565003 10/18/2011 10/18/2011 10/18/2011 Co-60 Cr-51 Cs-134

-6.40E+00

-8.26E+00 3.92E+00 8.73E+00 3.28E+01 5.01E+00 1.47E+01 1.1OE+02 1.69E+01 U

U 1

TG 288565003 10/18/2011 Cs-137 5.57E+00 4.67E+00 1.49E+01 U TG TG 288565003 288565003 10/18/2011 10/18/2011 Fe-59 1-131 1.73E+01

-4.51 E+00 1.07E+01 8.OOE+00 3.42E+01 2.63E+01 U

U i TG 288565003 10/18/2011 K-40 3.72E+03 2.16E+02 1.40E+02 TG TG TG 288565003 288565003 288565003 10/18/2011 10/18/2011 10/18/2011 La-140 Mn-54 Nb-95

-9.28E+00

-9.12E-01 7.28E+00 8.55E+00 4.OOE+00 4.63E+00 2.55E+01 1.32E+01 1.52E+01 U

U U

i TG 288565003 10/18/2011 Ru-103 4.37E+00 4.16E+00 1.36E+01 U TG 288565003 10/18/2011 Ru-106 -4.68E+0 I 3.62E+01 1.06E+02 U I

205 i

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TG 10 288565003 10/18/2011 Sb-124 2.44E+O1 1.08E+01 3.49E+01 U TG 10 288565003 10/18/2011 Sb-125 -3.96E+00 9.69E+00 3.17E+01 U TG 10 288565003 10/18/2011 Se-75 -6.57E+00 4.67E+00 1.36E+01 U TG 10 288565003 10/18/2011 Th-228 5.18E+00 1.20E+01 1.79E+01 U TG 10 288565003 10/18/2011 Zn-65 -7.77E+00 1.05E+01 3.25E+01 U TG 10 288565003 10/18/2011 Zr-95 -3.50E+00 7.65E+00 2.52E+01 U 206

Seabrook REMP Summary of 2011 Data U

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

TM TM TM' 270291001 270291001 270291001 1/11/2011 1/11/2011 1/11/2011 Ag-108m Ag-i 10m Ba-140

-6.17E-01 9.08E-01

-5.25E-01 6.85E-01 8.35E-01 1.03E+00 2.23E+00 2.45E+00 3.25E+00 U

U U

U I

TM 270291001 1/11/2011 Be-7 -3.54E+00 6.06E+00 1.97E+01 U TM 270291001 1/11/2011 Ce-141 2.11E+00 1.33E+00 4.27E+00 U TM 270291001 1/11/2011 Ce-144 2.46E+00 4.73E+00 i.55E+01 U TM 270291001 1/11/2011 Co-57 -4.58E-01 6.41E-01 2.07E+00 U TM TM TM 270291001 270291001 270291001 1/11/2011 1/11/2011 1/11/2011 Co-58 Co-60 Cr-51

-8.08E-01

- 1.16E+00

-2.76E-01 8.16E-01 8.83E-01 7.02E+00 2.55E+00 2.77E+00 2.35E+01 U

U U

I TM TM TM 270291001 270291001 270291001 1/11/2011 1/11/2011 1/11/2011 Cs-134 Cs-137 Fe-59

-8.86E-02 1.05E+01

-1.45E+00 8.85E-01 1.64E+00 1.79E+00 2.85E+00 2.66E+00 5.81E+00 U

M U

I 6.08E-01 U I

TM 270291001 1/11/2011 1-131 9.77E-02 1.84E-01 TM 270291001 1/11/2011 K-40 1.76E+03 8.56E+01 2.25E+01 TM 270291001 1/11/2011 La-140 -5.25E-01 1.03E+00 3.25E+00 TM 270291001 1/11/2011 Mn-54 -6.30E-01 7.71 E-0 I 2.42E+00 TM TM TM 270291001 270291001 270291001 1/11/2011 1/11/2011 1/11/2011 Nb-95 Ru-103 Ru-106

-3.14E-01

-1.68E+00 1.81E+00 7.74E-01 8.46E-0 I 6.80E+00 2.47E+00 2.64E+00 2.24E+01 I

TM TM TM 270291001 270291001 270291001 1/11/2011 1/11/2011 1/11/2011 Sb-124 Sb-125 Se-75 1.26E+00

-2.73E+00 1.55E-01 i.63E+00 2.01E+00 9.96E-01 5.50E+00 6.45E+00 3.37E+00 I

1.16E-01 2.03E+00 4.95E+00 I

TM 270291001 1/11/2011 Th-228 TM 270291001 1/11/2011 Zn-65 -8.68E-01 1.89E+00 6.22E+00 TM 270291001 1/11/2011 Zr-95 5.72E-01 1.42E+00 4.65E+00 TM 272194001 2/9/2011 Ac-228 6.18E+00 4.80E+00 1.02E+01 TM TM TM 272194001 272194001 272194001 2/9/2011 2/9/2011 2/9/2011 Ag-108m Ag-I 10m Ba-140

-2.53E-01 1.26E+00

-1.25E+00 5.76E-01 7.91E-01 1.45E+00 1.82E+00 2.23E+00 4.42E+00 I

TM TM TM 272194001 272194001 272194001 2/9/2011 2/9/2011 2/9/2011 Be-7 Ce-I141 Ce-144 2.61E+00

-3.63E+00 2.46E-01 5.74E+00 1.54E+00 4.45E+00 1.95E+01 4.19E+00 1.41E+01 I

1.87E+00 I

TM 272194001 2/9/2011 Co-57 8.67E-01 6.13E-01 TM 272194001 2/9/2011 Co-58 4.77E-01 7.39E-01 2.43E+00 TM 272194001 2/9/2011 Co-60 1.60E-02 7.01E-01 2.32E+00 TM 272194001 2/9/2011 Cr-51 -3.02E+00 7.08E+00 2.28E+01 TM TM TM 272194001 272194001 272194001 2/9/2011 2/9/2011 2/9/2011 Cs-134 Cs-137 Fe-59 1.17E+00 7.49E+00 4.34E-01 8.93E-01 1.32E+00 1.72E+00 2.88E+00 2.23E+00 5.77E+00 I

TM TM TM 272194001 272194001 272194001 2/9/2011 2/9/2011 2/9/2011 1-131 K-40 La-140

-1.30E-01 1.77E+03

-1.25E+00 1.67E-01 8.76E+01 1.45E+00 5.45E-01 1.86E+01 4.42E+00 U I

2.11E+00 U I

TM 272194001 2/9/2011 Mn-54 -1.90E-01 6.54E-01 TM 272194001 2/9/2011 Nb-95 6.79E-01 7.19E-01 2.36E+00 U TM 272194001 2/9/2011 Ru-103 -3.86E-01 7.35E-01 2.43E+00 U TM 272194001 2/9/2011 Ru-106 7.06E+00 5.98E+00 1.97E+01 U TM TM TM 272194001 272194001 272194001 2/9/2011 2/9/2011 2/9/2011 Sb-124 Sb-125 Se-75 2.52E+00 1.62E+00

-1.65E+00 1.58E+00 1.78E+00 9.85E-01 5.16E+00 5.71E+00 2.90E+00 U

U U

I TM 272194001 2/9/2011 Th-228 3.58E+00 2.23E+00 4.92E+00 U I

207 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TM 272194001 2/9/2011 Zn-65 - 1.12E+00 1.70E+00 5.53E+00 U TM 272194001 2/9/2011 Zr-95 -9.89E-01 1.31E+00 4.16E+00 U TM 273802001 3/9/2011 Ac-228 -5.25E+00 4.12E+00 1.03E+01 U TM 273802001 3/9/2011 Ag-108m -6.07E-01 5.86E-01 i .84E+00 U TM 273802001 3/9/2011 Ag-110m 3.20E-01 6.96E-01 2.07E+00 U TM 273802001 3/9/2011 Ba-140 3.83E-01 9.18E-01 3.04E+00 U TM 273802001 3/9/2011 Be-7 6.5 1E-02 5.47E+00 1.80E+01 U TM 273802001 3/9/2011 Ce-141 -4.85E+00 1.85E+00 3.26E+00 U TM 273802001 3/9/2011 Ce-144 3.29E-01 3.60E+00 1.21E+01 U TM 273802001 3/9/2011 Co-57 2.71 E-0 1 4.61E-01 1.56E+00 U TM 273802001 3/9/2011 Co-58 -7.04E-01 7.31E-01 2.30E+00 U TM 273802001 3/9/2011 Co-60 3.43E-01 8.21E-01 2.75E+00 U TM 273802001 3/9/2011 Cr-51 -2.92E+00 5.4 1E+00 1.80E+01 U TM 273802001 3/9/2011 Cs-134 2.76E-01 8.80E-01 2.94E+00 U TM 273802001 3/9/2011 Cs-137 7.77E+00 1.78E+00 2.19E+00 M TM 273802001 3/9/2011 Fe-59 4.74E+00 2.08E+00 6.09E+00 U TM 273802001 3/9/2011 1-131 3.68E-01 1.96E-01 5.99E-01 U TM 273802001 3/9/2011 K-40 1.65E+03 8.OOE+01 2.49E+01 TM 273802001 3/9/2011 La-140 3.83E-01 9.18E-01 3.04E+00 U TM 273802001 3/9/2011 Mn-54 -4.43E-01 7.25E-01 2.34E+00 U TM 273802001 3/9/2011 Nb-95 1.35E+00 7.85E-01 2.5 1E+00 U TM 273802001 3/9/2011 Ru-103 -1.15E+00 7.17E-01 2.08E+00 U TM 273802001 3/9/2011 Ru-106 5.23E+00 6.26E+00 2.02E+01 U TM 273802001 3/9/2011 Sb-124 -2.52E+00 1.61E+00 4.39E+00 U TM 273802001 3/9/2011 Sb-125 -6.52E-01 1.70E+00 5.57E+00 U TM 273802001 3/9/2011 Se-75 -1.90E-01 8.35E-01 2.66E+00 U TM 273802001 3/9/2011 Th-228 -1.22E+00 1.63E+00 4.09E+00 U TM 273802001 3/9/2011 Zn-65 6.04E-01 1.87E+00 6.05E+00 U TM 273802001 3/9/2011 Zr-95 4.92E-01 1.20E+00 4.04E+00 U TM 275584001 4/6/2011 Ac-228 -7.51 E+00 4.71E+00 1.02E+01 U TM 275584001 4/6/2011 Ag-108m -3.60E-01 5.95E-01 1.89E+00 U TM 275584001 4/6/2011 Ag-110m -8.44E-01 7.47E-01 2.OOE+00 U TM 275584001 4/6/2011 Ba-140 1.47E-01 1.32E+00 3.73E+00 U TM 275584001 4/6/2011 Be-7 -1.10E+01 6.72E+00 1.92E+01 U TM 275584001 4/6/2011 Ce-141 9.61E-01 1.44E+00 4.15E+00 U TM 275584001 4/6/2011 Ce-144 1.32E-01 4.57E+00 1.48E+01 U TM 275584001 4/6/2011 Co-57 2.95E-02 6.1OE-01 1.98E+00 U TM 275584001 4/6/2011 Co-58 -2.02E-01 7.29E-01 2.38E+00 U TM 275584001 4/6/2011 Co-60 2.01E-01 8.28E-01 2.77E+00 U TM 275584001 4/6/2011 Cr-51 -8.29E+00 7.23E+00 2.26E+01 U TM 275584001 4/6/2011 Cs-134 -1. 10E+00 9.73E-01 3.OOE+00 U TM 275584001 4/6/2011 Cs-137 6.99E+00 1.64E+00 2.03E+00 M TM 275584001 4/6/2011 Fe-59 8.41 E-01 1.77E+00 5.75E+00 U TM 275584001 4/6/2011 1-131 2.80E-01 2.62E-01 8.61E-01 U TM 275584001 4/6/2011 K-40 1.59E+03 8.15E+01 2.39E+01 TM 275584001 4/6/2011 La-140 1.47E-01 1.32E+00 3.73E+00 U TM 275584001 4/6/2011 Mn-54 2. i OE-02 6.93E-01 2.28E+00 U TM 275584001 4/6/2011 Nb-95 6.26E-01 7.50E-01 2.49E+00 U TM 275584001 4/6/2011 Ru-103 -1.34E+00 8.39E-01 2.39E+00 U TM 275584001 4/6/2011 Ru-106 3.87E-01 6.07E+00 2.04E+01 U TM 275584001 4/6/2011 Sb-124 -2.75E+00 1.77E+00 4.86E+00 U 208

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TM 15 275584001 4/6/2011 Sb-125 2.55E+00 1.87E+00 5.98E+00 U TM 15 275584001 4/6/2011 Se-75 -6.14E-01 9.26E-01 3.04E+00 U TM 15 275584001 4/6/2011 Th-228 -5.17E-01 1.98E+00 4.70E+00 U TM 15 275584001 4/6/2011 Zn-65 -2.68E+00 1.93E+00 5.58E+00 U TM 15 275584001 4/6/2011 Zr-95 -2.32E+00 1.34E+00 3.80E+00 U TM 15 276543001 4/20/2011 Ac-228 1.68E+00 6.42E+00 1.44E+01 U TM 15 276543001 4/20/2011 Ag-108m -3.42E-01 8.04E-01 2.55E+00 U TM 15 276543001 4/20/2011 Ag-ll0m 5.46E-01 1.01E+00 2.93E+00 U TM 15 276543001 4/20/2011 Ba-140 -2.33E+00 1.97E+00 5.92E+00 U TM 15 276543001 4/20/2011 Be-7 -5.56E+00 8.47E+00 2.62E+01 U TM 15 276543001 4/20/2011 Ce-141 1.58E-01 1.78E+00 5.70E+00 U TM 15 276543001 4/20/2011 Ce-144 -1.68E-01 6.08E+00 1.96E+01 U TM 15 276543001 4/20/2011 Co-57 1.07E+00 8.02E-01 2.52E+00 U TM 15 276543001 4/20/2011 Co-58 -1.50E+00 1.04E+00 3.OOE+00 U TM 15 276543001 4/20/2011 Co-60 2.67E-01 9.67E-01 3.20E+00 U TM 15 276543001 4/20/2011 Cr-51 7.65E+00 9.72E+00 3.20E+01 U TM 15 276543001 4/20/2011 Cs-134 -3.27E-01 1.15E+00 3.70E+00 U TM 15 276543001 4/20/2011 Cs-137 5.66E+00 1.43E+00 3.16E+00 M TM 15 276543001 4/20/2011 Fe-59 3.78E-01 2.36E+00 7.87E+00 U TM 15 276543001 4/20/2011 1-131 3.94E-01 3.09E-01 9.98E-01 U TM 15 276543001 4/20/2011 K-40 1.63E+03 8.77E+01 2.88E+01 TM 15 276543001 4/20/2011 La-140 -2.33E+00 1.97E+00 5.92E+00 U TM 15 276543001 4/20/2011 Mn-54 -4.25E-01 8.92E-01 2.83E+00 U TM 15 276543001 4/20/2011 Nb-95 -2.95E-01 9.68E-01 3.13E+00 U TM 15 276543001 4/20/2011 Ru-103 6.1OE-01 1.02E+00 3.47E+00 U TM 15 276543001 4/20/2011 Ru-106 3.03E+00 8.1OE+00 2.71E+01 U TM 15 276543001 4/20/2011 Sb-124 3.85E-01 2.05E+00 6.89E+00 U TM 15 276543001 4/20/2011 Sb-125 -2.62E+00 2.44E+00 7.37E+00 U TM 15 276543001 4/20/2011 Se-75 9.59E-01 1.25E+00 4.15E+00 U TM 15 276543001 4/20/2011 Th-228 3.96E-01 2.78E+00 6.21E+00 U TM 15 276543001 4/20/2011 Zn-65 - 1.18E+00 2.22E+00 7.18E+00 U TM 15 276543001 4/20/2011 Zr-95 -1.99E+00 1.80E+00 5.45E+00 U TM 15 277468001 5/3/2011 Ac-228 -5.19E+00 5.15E+00 1.07E+01 U TM 15 277468001 5/3/2011 Ag-108m -3.91E-01 5.38E-01 1.73E+00 U TM 15 277468001 5/3/2011 Ag-110m 2.67E-01 6.89E-01 1.95E+00 U TM 15 277468001 5/3/2011 Ba-140 1.37E-01 8.84E-01 2.93E+00 U TM 15 277468001 5/3/2011 Be-7 4.87E+00 5.36E+00 1.76E+01 U TM 15 277468001 5/3/2011 Ce-141 1.22E+00 8.63E-01 2.74E+00 U TM 15 277468001 5/3/2011 Ce-144 -1.28E+00 3.13E+00 1.03E+01 U TM 15 277468001 5/3/2011 Co-57 1.81E-01 3.98E-01 1.33E+00 U TM 15 277468001 5/3/2011 Co-58 1.12E+00 7.17E-01 2.32E+00 U TM 15 277468001 5/3/2011 Co-60 1.88E-01 7.95E-01 2.68E+00 U TM 15 277468001 5/3/2011 Cr-51 3.1OE+00 4.87E+00 1.64E+01 U TM 15 277468001 5/3/2011 Cs-134 5.49E-02 8.14E-01 2.72E+00 U TM 15 277468001 5/3/2011 Cs-137 6.53E+00 1.33E+00 2.33E+00 M TM 15 277468001 5/3/2011 Fe-59 9.22E-01 1.70E+00 5.55E+00 U TM 15 277468001 5/3/2011 1-131 -1.13E-01 2.61E-01 8.32E-01 U TM 15 277468001 5/3/2011 K-40 1.57E+03 7.61E+01 2.21E+01 TM 15 277468001 5/3/2011 La-140 1.37E-01 8.84E-01 2.93E+00 U TM 15 277468001 5/3/2011 Mn-54 -9.91E-02 6.75E-01 2.24E+00 U TM 15 277468001 5/3/2011 Nb-95 -5.24E-01 6.85E-01 2.22E+00 U 209

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TM 277468001 5/3/2011 Ru-103 -9.17E-01 6.90E-01 2.08E+00 U TM 277468001 5/3/2011 Ru-106 -6.35E-01 5.84E+00 1.88E+01 U TM 277468001 5/3/2011 Sb-124 -2.29E-01 1.48E+00 4.80E+00 U TM 277468001 5/3/2011 Sb-125 7.94E-01 1.57E+00 5.23E+00 U TM 277468001 5/3/2011 Se-75 -1.40E-01 7.47E-01 2.37E+00 U TM 277468001 5/3/2011 Th-228 -3.48E+00 1.76E+00 4.05E+00 U TM 277468001 5/3/2011 Zn-65 4.28E-01 1.82E+00 5.92E+00 U TM 277468001 5/3/2011 Zr-95 5.92E-01 1.1 7E+00 3.96E+00 U TM 278644001 5/18/2011 Ac-228 5.77E+00 4.06E+00 7.25E+00 U TM 278644001 5/18/2011 Ag-108m 5.38E-01 4.54E-01 1.45E+00 U TM 278644001 5/18/2011 Ag-ll0m -2.72E-01 5.12E-01 1.46E+00 U TM 278644001 5/18/2011 Ba-140 -1.25E+00 1.25E+00 3.86E+00 U TM 278644001 5/18/2011 Be-7 -2.89E+00 4.92E+00 1.56E+01 U TM 278644001 5/18/2011 Ce-141 -2.96E+00 1.29E+00 3.36E+00 U TM 278644001 5/18/2011 Ce-144 2.14E+00 3.54E+00 1.08E+01 U TM 278644001 5/18/2011 Co-57 1.85E-01 4.44E-01 1.43E+00 U TM 278644001 5/18/2011 Co-58 -1.77E-01 5.57E-01 1.83E+00 U TM 278644001 5/18/2011 Co-60 -1.43E+00 1.01E+00 2.08E+00 U TM 278644001 5/18/2011 Cr-51 2.82E+00 5.65E+00 1.88E+01 U TM 278644001 5/18/2011 Cs-134 8.36E-01 6.45E-01 2.1OE+00 U TM 278644001 5/18/2011 Cs-137 3.52E+00 1.06E+00 1.61E+00 M TM 278644001 5/18/2011 Fe-59 -5.50E-01 1.49E+00 4.78E+00 U TM 278644001 5/18/2011 1-131 1.01E-01 1.26E-01 4.23E-01 U TM 278644001 5/18/2011 K-40 1.77E+03 8.23E+01 1.50E+01 TM 278644001 5/18/2011 La-140 -1.25E+00 1.25E+00 3.86E+00 U TM 278644001 5/18/2011 Mn-54 -4.53E-01 5.21E-01 1.66E+00 U TM 278644001 5/18/2011 Nb-95 2.50E-01 5.57E-01 1.86E+00 U TM 278644001 5/18/2011 Ru-103 -7.33E-01 6.60E-01 2.02E+00 U TM 278644001 5/18/2011 Ru-106 3.74E+00 4.24E+00 1.43E+01 U TM 278644001 5/18/2011 Sb-124 4.83E-01 1.14E+00 3.82E+00 U TM 278644001 5/18/2011 Sb-125 9.81E-01 1.32E+00 4.29E+00 U TM 278644001 5/18/2011 Se-75 4.99E-01 6.75E-01 2.25E+00 U TM 278644001 5/18/2011 Th-228 1.15 E+00 1.33E+00 3.26E+00 U TM 278644001 5/18/2011 Zn-65 -1.31E+00 1.37E+00 4.23E+00 U TM 278644001 5/18/2011 Zr-95 -3.36E+00 1.51E+00 2.99E+00 U TM 279336001 6/1/2011 Ac-228 -3.53E+00 5.03E+00 1.37E+01 U TM 279336001 6/1/2011 Ag-108m -6.OOE-01 7.89E-0 1 2.45E+00 U TM 279336001 6/1/2011 Ag-lr0m -1.70E-01 9.06E-0 1 2.57E+00 U TM 279336001 6/1/2011 Ba-140 7.52E-01 1.27E+00 4.33E+00 U TM 279336001 6/1/2011 Be-7 -9.24E+00 9.95E+00 2.39E+01 U TM 279336001 6/1/2011 Ce-141 -3.55E-01 1.55E+00 4.95E+00 U TM 279336001 6/1/2011 Ce-144 1.39E+01 6.75E+00 1.96E+01 U TM 279336001 6/1/2011 Co-57 -4. 1OE-01 7.88E-01 2.51E+00 U TM 279336001 6/1/2011 Co-58 1.1 OE+00 1.19E+00 3.06E+00 U TM 279336001 6/1/2011 Co-60 -1.07E+00 1.04E+00 3.15E+00 U TM 279336001 6/1/2011 Cr-51 -5.42E+00 8.3 1E+00 2.66E+01 U TM 279336001 6/1/2011 Cs-134 -1.78E+00 1.43E+00 3.58E+00 U TM 279336001 6/1/2011 Cs-137 3.33E+00 1.28E+00 2.72E+00 M TM 279336001 6/1/2011 Fe-59 2.56E+00 2.26E+00 7.53E+00 U TM 279336001 6/1/2011 1-131 1.68E-02 2.01E-01 6.72E-01 U TM 279336001 6/1/2011 K-40 1.67E+03 8.9 1E+01 3.12E+01 210

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

TM TM TM 279336001 279336001 279336001 6/1/2011 6/1/2011 6/1/2011 La-140 Mn-54 Nb-95 7.52E-01 8.84E-01 5.62E-02 1.26E+00 8.68E-0 I 8.83E-01 4.33E+00 2.84E+00 2.90E+00 I

9.64E-0 1 3.OOE+00 I

TM 279336001 6/1/2011 Ru-103 -1.20E+00 TM 279336001 6/1/2011 Ru-106 -9.84E+00 7.92E+00 2.42E+01 TM 279336001 6/1/2011 Sb-124 -1.13E-01 1.82E+00 6.05E+00 TM 279336001 6/1/2011 Sb-125 1.85E+00 3.04E+00 7.99E+00 TM TM TM 279336001 279336001 279336001 6/1/2011 6/1/2011 6/1/2011 Se-75 Th-228 Zn-65

-1.73E+00 2.80E-01

-7.97E-01 1.22E+00 2.24E+00 2.3 1E+00 3.71 E+00 5.72E+00 7.57E+00 I

TM TM TM 279336001 280311001 280311001 6/1/2011 6/15/2011 6/15/2011 Zr-95 Ac-228 Ag-108m 3.02E+00 7.OOE-01

-9.02E-01 1.71E+00 3.65E+00 6.66E-01 5.43E+00 9.74E+00 2.05E+00 I

4.12E-01 8.45E-01 2.41 E+00 I

TM 280311001 6/15/2011 Ag-110m TM 280311001 6/15/2011 Ba-140 -1.11E+00 1.50E+00 4.60E+00 TM 280311001 6/15/2011 Be-7 9.83E-01 6.85E+00 2.28E+01 TM 280311001 6/15/2011 Ce-141 -3.66E+00 2.25E+00 5.4 1E+00 TM TM TM 280311001 280311001 280311001 6/15/2011 6/15/2011 6/15/2011 Ce-144 Co-57 Co-58

-3.19E+00

-3.86E-01

-3.40E-0 1 5.50E+00 7.25E-01 8.18E-01 1.78E+01 2.37E+00 2.60E+00 I

TM TM TM 280311001 280311001 280311001 6/15/2011 6/15/2011 6/15/2011 Co-60 Cr-51 Cs-134

-6.38E-03

-9.87E+00 1.05E+00 1.03E+00 8.58E+00 8.86E-01 2.73E+00 2.74E+01 2.85E+00 I

6/15/2011 8.84E+00 1.75E+00 2.33E+00 I

TM 280311001 Cs-137 TM 280311001 6/15/2011 Fe-59 -3.19E-02 1.84E+00 6.1OE+00 TM 280311001 6/15/2011 1-131 -2.78E-01 2.97E-01 9.38E-01 TM 280311001 6/15/2011 K-40 1.88E+03 9.38E+01 1.85E+01 TM TM TM 280311001 280311001 280311001 6/15/2011 6/15/2011 6/15/2011 La- 140 Mn-54 Nb-95

-1.11E+00 1.15E-01 1.54E+00 1.50E+00 7.13E-01 8.76E-01 4.60E+00 2.31 E+00 2.72E+00 I

TM TM TM 280311001 280311001 280311001 6/15/2011 6/15/2011 6/15/2011 Ru-103 Ru-106 Sb-124

-1.05E+00 4.94E-01

-1.36E+00 8.84E-01 6.55E+00 1.54E+00 2.73E+00 2.15E+01 4.63E+00 I

6/15/2011 1.39E-01 1.97E+00 6.58E+00 I

TM 280311001 Sb-125 TM 280311001 6/15/2011 Se-75 1.36E+00 1.18E+00 3.73E+00 TM 280311001 6/15/2011 Th-228 6.82E-01 2.64E+00 5.46E+00 TM 280311001 6/15/2011 Zn-65 -3.50E+00 1.99E+00 5.70E+00 TM TM TM 280311001 282329001 282329001 6/15/2011 7/13/2011 7/13/2011 Zr-95 Ac-228 Ag-108m 2.06E+00 2.48E-01 1.21E-01 1.46E+00 3.86E+00 5.51E-01 4.63E+00 8.66E+00 1.79E+00 U

I TM 282329001 7/13/2011 Ag-110m -7.62E-01 6.80E-01 1.82E+00 TM 282329001 7/13/2011 Ba-140 -3.47E-01 8.61E-01 2.79E+00 TM 282329001 7/13/2011 Be-7 4.16E+00 5.69E+00 1.84E+01 282329001 7/13/2011 -2.06E+00 1.60E+00 3.80E+00 I

TM Ce-141 TM 282329001 7/13/2011 Ce-144 -2.75E-01 4.05E+00 1.37E+01 TM 282329001 7/13/2011 Co-57 7.33E-01 5.44E-01 1.78E+00 TM 282329001 7/13/2011 Co-58 5.77E-01 6.44E-01 2.15E+00 TM TM TM 282329001 282329001 282329001 7/13/2011 7/13/2011 7/13/2011 Co-60 Cr-51 Cs-134 1.42E+00 2.61 E+00 1.73E-01 8.22E-01 7.95E+00 7.67E-0 I 2.59E+00 2.02E+01 2.56E+00 I

TM 282329001 7/13/2011 Cs-137 5.15E+00 1.24E+00 1.95E+00 I

211 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TM 282329001 7/13/2011 Fe-59 -4.35E-01 1.55E+00 4.98E+00 U TM 282329001 7/13/2011 1-131 -4.61 E-02 2.83E-01 9.28E-01 U TM 282329001 7/13/2011 K-40 1.81E+03 9.40E+0 1 1.73E+01 TM 282329001 7/13/2011 La-140 -3.47E-01 8.60E-01 2.79E+00 U TM 282329001 7/13/2011 Mn-54 -1.18E+00 6.97E-01 2.OOE+00 U TM 282329001 7/13/2011 Nb-95 1.33E-01 6.64E-01 2.22E+00 U TM 282329001 7/13/2011 Ru-103 -1.78E+00 8.20E-01 2.1OE+00 U TM 282329001 7/13/2011 Ru-106 -5.34E+00 5.70E+00 1.82E+01 U TM 282329001 7/13/2011 Sb-124 1.72E+00 1.25E+00 3.86E+00 U TM 282329001 7/13/2011 Sb-125 7.98E-01 1.66E+00 5.40E+00 U TM 282329001 7/13/2011 Se-75 -1.62E-01 8.28E-01 2.72E+00 U TM 282329001 7/13/2011 Th-228 2.77E+00 2.37E+00 4.20E+00 U TM 282329001 7/13/2011 Zn-65 6.72E-01 1.70E+00 5.58E+00 U TM 282329001 7/13/2011 Zr-95 -2.91E-01 1.20E+00 3.96E+00 U TM 283016001 7/27/2011 Ac-228 -3.77E-01 4.19E+00 1.07E+01 U TM 283016001 7/27/2011 Ag-108m -5.24E-01 6.15E-01 1.92E+00 U TM 283016001 7/27/2011 Ag-110m 2.86E-01 7.62E-01 2.24E+00 U TM 283016001 7/27/2011 Ba-140 -1.30E+00 1.17E+00 3.45E+00 U TM 283016001 7/27/2011 Be-7 -2.96E+00 6.55E+00 2.09E+01 U TM 283016001 7/27/2011 Ce-141 3.73E-01 1.22E+00 3.93E+00 U TM 283016001 7/27/2011 Ce-144 4.86E+00 4.90E+00 1.49E+01 U TM 283016001 7/27/2011 Co-57 -9.58E-02 6.07E-01 1.97E+00 U TM 283016001 7/27/2011 Co-58 -5.42E-01 7.36E-01 2.34E+00 U TM 283016001 7/27/2011 Co-60 -8.43E-02 1.23E+00 3.02E+00 U TM 283016001 7/27/2011 Cr-51 -2.78E+00 6.68E+00 2.19E+01 U TM 283016001 7/27/2011 Cs-134 4.48E-01 8.16E-01 2.72E+00 U TM 283016001 7/27/2011 Cs-137 3.70E+00 1.59E+00 2.41E+00 M TM 283016001 7/27/2011 Fe-59 8.34E-01 1.92E+00 6.21E+00 U TM 283016001 7/27/2011 1-131 2.76E-01 3.02E-01 9.93E-01 U TM 283016001 7/27/2011 K-40 1.77E+03 8.93E+01 1.90E+01 TM 283016001 7/27/2011 La-140 -1.30E+00 1.1 7E+00 3.45E+00 U TM 283016001 7/27/2011 Mn-54 1.12E-01 6.77E-01 2.24E+00 U TM 283016001 7/27/2011 Nb-95 5.57E-02 7.05E-01 2.34E+00 U TM 283016001 7/27/2011 Ru-103 -1.35E+00 7.94E-01 2.22E+00 U TM 283016001 7/27/2011 Ru-106 -1.75E+00 6.05E+00 2.01E+01 U TM 283016001 7/27/2011 Sb-124 1.48E+00 1.58E+00 5.27E+00 U TM 283016001 7/27/2011 Sb-125 -1.26E+00 1.80E+00 5.67E+00 U TM 283016001 7/27/2011 Se-75 2.95E-01 9.26E-01 3.12E+00 U TM 283016001 7/27/2011 Th-228 7.16E-01 2.11E+00 4.53E+00 U TM 283016001 7/27/2011 Zn-65 -5.04E+00 2.25E+00 5.67E+00 U TM 283016001 7/27/2011 Zr-95 -8.50E-01 1.30E+00 4.19E+00 U TM 284041001 8/10/2011 Ac-228 -3.60E+00 4.98E+00 1.24E+01 U TM 284041001 8/10/2011 Ag-108m 5.57E-01 7.63E-01 2.53E+00 U TM 284041001 8/10/2011 Ag-lr0m 3.13E+00 1.22E+00 3.04E+00 UI TM 284041001 8/10/2011 Ba-140 -1.43E+00 1.23E+00 3.67E+00 U TM 284041001 8/10/2011 Be-7 -1.36E+01 8.33E+00 2.45E+01 U TM 284041001 8/10/2011 Ce-141 -2.95E+00 2.23E+00 5.50E+00 U TM 284041001 8/10/2011 Ce-144 -8.66E+00 6.67E+00 2.02E+01 U TM 284041001 8/10/2011 Co-57 3.36E-01 8.33E-01 2.72E+00 U TM 284041001 8/10/2011 Co-58 -8.83E-01 8.93E-01 2.76E+00 U TM 284041001 8/10/2011 Co-60 1.93E-01 9.40E-01 3.15E+00 U 212

Seabrook REMP Summary of 2011 Data I

MDC FLAGS U

SAMPLE END CONC STD.DEV.

TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TM 284041001 8/10/2011 Cr-51 -2.16E+00 8.56E+00 2.84E+01 U TM TM TM 284041001 284041001 284041001 8/10/2011 8/10/2011 8/10/2011 Cs-134 Cs-137 Fe-59

-1.20E+00 8.24E+00 6.66E+00 1.13E+00 2.11E+00 2.66E+00 3.48E+00 2.84E+00 7.56E+00 U

M U

I TM TM TM 284041001 284041001 284041001 8/10/2011 8/10/2011 8/10/2011 1-131 K-40 La-140 8.26E-01 1.73E+03

-1.43E+00 3.58E-01 9.3 1E+01 1.23E+00 1.05E+00 2.38E+01 3.67E+00 U DL*

3 TM 284041001 8/10/2011 Mn-54 1.03E+00 8.88E-01 2.88E+00 TM TM 284041001 284041001 8/10/2011 8/10/2011 Nb-95 Ru-103 2.08E-01 7.80E-01 9.08E-01 9.08E-01 2.99E+00 2.99E+00 I

TM 284041001 8/10/2011 Ru-106 -2.75E+00 7.56E+00 2.46E+01 TM TM TM 284041001 284041001 284041001 8/10/2011 8/10/2011 8/10/2011 Sb-124 Sb-125 Se-75

-3.76E-01 1.35E+00 8.46E-01 1.69E+00 2.32E+00 1.24E+00 5.5 1E+00 7.72E+00 4.15E+00 I

TM TM TM 284041001 284041001 284041001 8/10/2011 8/10/2011 8/10/2011 Th-228 Zn-65 Zr-95 2.81 E+00

-1.17E+00

-1.28E+00 3.40E+00 2.27E+00 1.67E+00 6.19E+00 7.19E+00 5.26E+00 I

TM 284904001 8/24/2011 Ac-228 -7.25E+00 5.09E+00 1.23E+01 TM TM 284904001 284904001 8/24/2011 8/24/2011 Ag-108m Ag-110m 8.06E-01

-9.79E-01 8.08E-01 9.94E-01 2.66E+00 3.11E+00 I TM 284904001 8/24/2011 Ba-140 1.53E+00 1.64E+00 5.52E+00 TM TM TM 284904001 284904001 284904001 8/24/2011 8/24/2011 8/24/2011 Be-7 Ce-141 Ce-144

-1.02E+01

-5.67E+00

-2.76E+00 8.26E+00 2.76E+00 6.48E+00 2.55E+01 6.12E+00 2.09E+0 I I

TM 284904001 8/24/2011 Co-57 -1.64E+00 9.25E-01 2.67E+00 TM TM 284904001 284904001 8/24/2011 8/24/2011 Co-58 Co-60 2.97E-01 1.94E-01 9.17E-01 9.32E-01 3.02E+00 3.13E+00 Il TM 284904001 8/24/2011 Cr-51 -5.74E+00 9.48E+00 3.1OE+01 TM TM 284904001 284904001 8/24/2011 8/24/2011 Cs-134 Cs-137 1.04E+00 3.22E+00 1.14E+00 1.28E+00 3.74E+00 3.63E+00 7.43E+00 I

TM 284904001 8/24/2011 Fe-59 -1.94E+00 2.39E+00 TM 284904001 8/24/2011 1-131 3.13E-01 2.85E-01 9.41 E-0 1 TM 284904001 8/24/2011 K-40 1.74E+03 9.38E+01 2.5 1E+01 TM 284904001 8/24/2011 La-140 1.53E+00 1.64E+00 5.52E+00 2.86E+00 TM TM TM 284904001 284904001 284904001 8/24/2011 8/24/2011 8/24/2011 Mn-54 Nb-95 Ru-103

-1.18E-01 1.88E-01 8.23E-02 8.78E-01 9.32E-01 9.71 E-01 3.06E+00 3.22E+00 I

TM 284904001 8/24/2011 Ru-106 -6.31 E-02 8.03E+00 2.64E+0 I TM 284904001 8/24/2011 Sb-124 -2.53E+00 2.06E+00 6.12E+00 TM 284904001 8/24/2011 Sb-125 -2.29E+00 2.40E+00 7.62E+00 TM 284904001 8/24/2011 Se-75 1.66E-01 1.29E+00 4.33E+00 TM 284904001 8/24/2011 Th-228 2.06E+00 2.39E+00 6.20E+00 TM 284904001 8/24/2011 Zn-65 -1.93E+00 2.34E+00 7.27E+00 TM 284904001 8/24/2011 Zr-95 -9.79E-01 1.67E+00 5.32E+00 TM TM TM 285767001 285767001 285767001 9/6/2011 9/6/2011 9/6/2011 Ac-228 Ag-108m Ag-110m 6.97E+00

-5.47E-02

-1.16E+00 4.19E+00 6.65E-01 8.68E-01 1.07E+01 2.19E+00 2.17E+00 I

TM 285767001 9/6/2011 Ba-140 -3.55E-01 1.36E+00 4.36E+00 TM TM 285767001 285767001 9/6/2011 9/6/2011 Be-7 Ce-141 8.OOE+00

-1.49E-01 6.95E+00 1.86E+00 2.26E+01 4.53E+00 I

TM 285767001 9/6/2011 Ce-144 3.47E-01 5.16E+00 1.61E+01 i

213

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg).

TM 15 285767001 9/6/2011 Co-57 -4.58E-01 6.59E-01 2.09E+00 U TM 15 285767001 9/6/2011 Co-58 -7.53E-01 7.59E-01 2.41E+00 U TM 15 285767001 9/6/2011 Co-60 1.18E+00 1.02E+00 2.97E+00 U TM 15 285767001 9/6/2011 Cr-5I -3.OOE+00 7.40E+00 2.44E+01 U TM 15 285767001 9/6/2011 Cs-134 3.97E-02 8.97E-01 3.02E+00 U TM 15 285767001 9/6/2011 Cs-137 4.63E+00 9.29E-01 2.46E+00 M TM 15 285767001 9/6/2011 Fe-59 -8.78E-01 1.92E+00 6.25E+00 U TM 15 285767001 9/6/2011 1-131 -2.92E-01 3.75E-01 1.23E+00 U DL*

TM 15 285767001 9/6/2011 K-40 1.73E+03 8.73E+01 2.29E+01 TM 15 285767001 9/6/2011 La-140 -3.55E-01 1.36E+00 4.36E+00 TM 15 285767001 9/6/2011 Mn-54 -5.57E-03 7.35E-01 2.47E+00 TM 15 285767001 9/6/2011 Nb-95 9.36E-01 8.04E-01 2.58E+00 TM 15 285767001 9/6/2011 Ru-103 -5.96E-02 7.6 1E-01 2.49E+00 TM 15 285767001 9/6/2011 Ru-106 4.55E+00 6.80E+00 2.22E+01 TM 15 285767001 9/6/2011 Sb-124 1.78E+00 1.71E+00 5.66E+00 TM 15 285767001 9/6/2011 Sb-125 -2.23E+00 2.06E+00 6.43E+00 TM 15 285767001 9/6/2011 Se-75 5.70E-01 9.66E-01 3.24E+00 TM 15 285767001 9/6/2011 Th-228 3.05E-01 1.90E+00 4.93E+00 TM 15 285767001 9/6/2011 Zn-65 -1.35E+00 1.93E+00 6.19E+00 TM 15 285767001 9/6/2011 Zr-95 -1.34E+00 1.48E+00 4.53E+00 TM 15 286081001 9/14/2011 Ac-228 -3.91E+00 4.46E+00 1.13E+01 TM 15 286081001 9/14/2011 Ag-108m 4.88E-01 7.12E-01 2.4 1E+00 TM 15 286081001 9/14/2011 Ag-110m 1.21E+00 9.44E-01 2.69E+00 TM 15 286081001 *9/14/2011 Ba-140 1.42E+00 2.07E+00 6.96E+00 TM 15. 286081001 9/14/2011 Be-7 1.41E+01 8.41 E+00 2.70E+01 TM 15 286081001 9/14/2011 Ce-141 -2.55E+00 2.35E+00 5.94E+00 TM 15 286081001 9/14/2011 Ce-144 4.96E-01 5.88E+00 1.89E+01 TM 15 286081001 9/14/2011 Co-57 -1.1 IE+00 8.12E-01 2.42E+00 TM 15 286081001 9/14/2011 Co-58 1.24E+00 9.59E-01 3.20E+00 TM 15 286081001 9/14/2011 Co-60 9.90E-01 9.96E-01 3.37E+00 TM 15 286081001 9/14/2011 Cr-51 - 1.17E+00 9.63E+00 3.13E+01 TM 15 286081001 9/14/2011 Cs-134 -1.74E+00 1.14E+00 3.24E+00 TM 15 286081001 9/14/2011 Cs-137 9.93E+00 1.60E+00 2.53E+00 TM 15 286081001 9/14/2011 Fe-59 4.13E-01 2.44E+00 8.03E+00 TM 15 286081001 9/14/2011 1-131 8.88E-02 2.44E-01 8.27E-01 TM 15 286081001 9/14/2011 K-40 2.16E+03 1.12E+02 2.45E+01 TM 15 286081001 9/14/2011 La-140 1.42E+00 2.07E+00 6.96E+00 TM 15 286081001 9/14/2011 Mn-54 -1.50E+00 9.07E-01 2.66E+00 TM 15 286081001 9/14/2011 Nb-95 9.81E-01 9.47E-01 3.07E+00 TM 15 286081001 9/14/2011 Ru-I103 -2.24E+00 1.15E+00 3.2 1E+00 TM 15 286081001 9/14/2011 Ru-106 -1.83E+00 7.26E+00 2.36E+01 TM 15 286081001 9/14/2011 Sb- 124 -4.78E-01 1.79E+00 5.75E+00 TM 15 286081001 9/14/2011 Sb-125 -3.81E+00 2.24E+00 6.62E+00 TM 15 286081001 9/14/2011 Se-75 1.1 1E+00 1.18E+00 3.85E+00 TM 15 286081001 9/14/2011 Th-228 -1.41E+00 2.01E+00 5.43E+00 TM 15 286081001 9/14/2011 Zn-65 -2.33E+00 2.32E+00 7.16E+00 TM 15 286081001 9/14/2011 Zr-95 -1.37E+00 1.77E+00 5.49E+00 TM 15 286563001 9/21/2011 Ac-228 4.98E+00 5.36E+00 1.41E+01 TM 15 286563001 9/21/2011 Ag-108m -8.83E-01 8.42E-01 2.57E+00 TM 15 286563001 9/21/2011 Ag-i 10m -2.96E-01 1.00E+00 2.83E+00 TM 15 286563001 9/21/2011 Ba-140 -2.50E+00 2.17E+00 6.53E+00 214:

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I TM TM 286563001 286563001 9/21/2011 9/21/2011 Be-7 Ce-141

-1.10E+01 1.35E+00 8.91E+00 1.87E+00 2.64E+01 6.04E+00 U U i, TM 286563001 9/21/2011 Ce-144 -1.47E+00 5.74E+00 1.85E+01 U TM TM 286563001 286563001 9/21/2011 9/21/2011 Co-57 Co-58

-1.42E+00 7.75E-01 9.88E-01 1.09E+00 2.45E+00 3.56E+00 U

U I

TM 286563001 9/21/2011 Co-60 -6.05E-01 1.08E+00 3.40E+00 U TM TM TM 286563001 286563001 286563001 9/21/2011 9/21/2011 9/21/2011 Cr-51 Cs-134 Cs-137 3.72E+00

-8.19E-02 1.30E+01 9.69E+00 1.11 E+00 1.81E+00 3.22E+01 3.59E+00 3.01E+00 U

U M

I TM TM TM 286563001

,286563001 286563001 9/21/2011 9/21/2011 9/21/2011 Fe-59 1-131 K-40 5.70E+00 8.28E-02 2.20E+03 2.93E+00 1.66E-01 1.04E+02 9.1 IE+00 5.57E-01 2.69E+01 U

U I TM 286563001 9/21/2011 La-140 -2.50E+00 2.17E+00 6.53E+00 U TM TM 286563001 286563001 9/21/2011 9/21/2011 Mn-54 Nb-95

-2.23E-01 2.49E+00 9.27E-01 1.48E+00 2.98E+00 3.68E+00 U

U I

TM 286563001 9/21/2011 Ru-103 -5.07E-01 1.06E+00 3.53E+00 U TM TM TM 286563001 286563001 286563001 9/21/2011 9/21/2011 9/21/2011 Ru-106 Sb-124 Sb-125 5.07E+00 2.93E-01

-1.51E+00 7.65E+00 2.03E+00 2.30E+00 2.56E+01 6.77E+00 7.23E+00 U

U U

I TM TM TM 286563001 286563001 286563001 9/21/2011 9/21/2011 9/21/2011 Se-75 Th-228 Zn-65 1.97E+00 2.07E+00

-4.04E+00 1.26E+00 2.17E+00 2.54E+00 4.05E+00 5.05E+00 7.39E+00 U

U U

I TM 286563001 9/21/2011 Zr-95 1.71E+00 1.89E+00 6.19E+00 U TM TM 288567001 288567001 10/19/2011 10/19/2011 Ac-228 Ag-108m

-7.69E+00

-1.63E+00 5.23E+00 9.31E-01 1.30E+01 2.70E+00 U

U I

TM 288567001 10/19/2011 Ag-i 10m 4.69E+00 1.57E+00 3.60E+00 UI TM TM TM 288567001 288567001 288567001 10/19/2011 10/19/2011 10/19/2011 Ba-140 Be-7 Ce-141

-8.55E-01 3.94E+00

-8.73E+00 1.28E+00 8.22E+00 3.02E+00 4.04E+00 2.74E+01 5.82E+00 U

U U

I TM TM TM 288567001 288567001 288567001 10/19/2011 10/19/2011 10/19/2011 Ce-144 Co-57 Co-58 1.71E+00 6.57E-01

-4.21E-01 6.99E+00 9.20E-01 1.00E+00 2.28E+01 2.98E+00 3.22E+00 U

U U

I TM 288567001 10/19/2011 Co-60 -1.34E-01 1.04E+00 3.46E+00 U TM TM 288567001 288567001 10/19/2011 10/19/2011 Cr-51 Cs-134 1.87E+00 2.26E-01 9.49E+00 1.28E+00 3.18E+01 4.21E+00 U

U I

TM 288567001 10/19/2011 Cs-137 1.24E+01 1.95E+00 3.06E+00 M TM TM TM 288567001 288567001 288567001 10/19/2011 10/19/2011 10/19/2011 Fe-59 1-131 K-40 2.69E+00 1.66E-01 1.76E+03 2.52E+00 2.62E-01 9.74E+01 8.15E+00 8.86E-01 2.81E+01 U

U I TM TM TM 288567001 288567001 288567001 10/19/2011 10/19/2011 10/19/2011 La-140 Mn-54 Nb-95

-8.55E-01 4.58E-01 5.66E-01 1.28E+00 9.38E-01 9.91E-01 4.04E+00 3.09E+00 3.27E+00 U

U U

I TM 288567001 10/19/2011 Ru-103 3.45E-01 9.92E-01 3.30E+00 U TM TM 288567001 288567001 10/19/2011 10/19/2011 Ru-106 Sb-124

-7.50E+00

-6.64E-01 8.87E+00 1.80E+00 2.80E+01 5.8 1E+00 U.

U I

TM 288567001 10/19/2011 Sb-125 -3.95E-01 2.65E+00 8.75E+00 U TM TM TM 288567001 288567001 288567001 10/19/2011 10/19/2011 10/19/2011 Se-75 Th-228 Zn-65

-3.44E-01 1.49E+00

-1.98E+00 1.34E+00 2.56E+00 2.53E+00 4.47E+00 6.76E+00 7.87E+00 U

U U

I TM TM 288567001 290709001 10/19/2011 11/16/2011 Zr-95 Ac-228

-1.74E+00

-3.88E+00 2.13E+00 3.39E+00 5.27E+00 6.67E+00 U

U I 215 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TM 290709001 11/16/2011 Ag-108m -2.02E-01 4.18E-01 1.33E+00 U TM 290709001 11/16/2011 Ag-110m 4.15E-01 5.OOE-01 1.47E+00 U TM 290709001 11/16/2011 Ba-140 5.59E-01 7.20E-01 2.44E+00 U TM 290709001 11/16/2011 Be-7 8.97E-0 1 4.36E+00 1.41E+01 U TM 290709001 11/16/2011 Ce-141 1.07E+00 9.91E-01 2.90E+00 U TM 290709001 11/16/2011 Ce-144 -2.84E+00 4.08E+00 1.03E+01 U TM 290709001 11/16/2011 Co-57 -6.98E-01 4.33E-01 1.33E+00 U TM 290709001 11/16/2011 Co-58 -6.89E-02 5.03E-01 1.66E+00 U TM 290709001 11/16/2011 Co-60 -5.88E-02 6.86E-01 1.91E+00 U TM 290709001 11/16/2011 Cr-51 -3.8 !E+00 4.75E+00 1.51E+01 U TM 290709001 11/16/2011 Cs-134 5.47E-02 5.50E-01 1.83E+00 U TM 290709001 11/16/2011 Cs-137 8.38E+00 8.36E-01 1.60E+00 M TM 290709001 11/16/2011 Fe-59 -1.13E+00 1.22E+00 3.79E+00 U TM 290709001 11/16/2011 1-131 5.54E-02 1.72E-01 5.67E-01 U TM 290709001 11/16/2011 K-40 1.71E+03 7.80E+01 1.39E+01 TM 290709001 11/16/2011 La-140 5.59E-01 7.20E-01 2.44E+00 U TM 290709001 11/16/2011 Mn-54 -6.45E-02 4.57E-01 1.51E+00 U TM 290709001 11/16/2011 Nb-95 6.39E-01 7.79E-01 1.73E+00 U TM 290709001 11/16/2011 Ru-103 6.60E-01 6.11E-01 1.71E+00 U TM 290709001 11/16/2011 Ru-106 3.05E-01 4.13E+00 1.39E+01 U TM 290709001 11/16/2011 Sb-124 8.45E-01 9.57E-01 3.23E+00 U TM 290709001 11/16/2011 Sb-125 -1.60E+00 1.29E+00 3.89E+00 U TM 290709001 11/16/2011 Se-75 -2.01E-01 6.37E-01 2.09E+00 U TM 290709001 11/16/2011 Th-228 3.64E+00 1.97E+00 3.23E+00 UI TM 290709001 11/16/2011 Zn-65 -4.30E-01 1.24E+00 3.98E+00 U TM 290709001 11/16/2011 Zr-95 7.81E-01 8.94E-01 2.97E+00 U TM 292314001 12/14/2011 Ac-228 1.3 1E+00 3.54E+00 8.90E+00 U TM 292314001 12/14/2011 Ag-108m -4.42E-01 5.28E-01 1.71E+00 U TM 292314001 12/14/2011 Ag-110m 8.65E-01 6.66E-01 1.91E+00 U TM 292314001 12/14/2011 Ba-140 -4.89E-01 9.25E-01 2.89E+00 U TM 292314001 12/14/2011 Be-7 - 1.19E+00 5.42E+00 1.80E+01 U TM 292314001 12/14/2011 Ce-141 2.11 E+00 1.29E+00 3.80E+00 U TM 292314001 12/14/2011 Ce-144 1.06E+01 4.75E+00 1.38E+01 U TM 292314001 12/14/2011 Co-57 -2.89E-01 5.20E-01 1.72E+00 U TM 292314001 12/14/2011 Co-58 -6.04E-01 7.13E-01 2.2 1E+00 U TM 292314001 12/14/2011 Co-60 8.53E-01 7.59E-01 2.50E+00 U TM 292314001 12/14/2011 Cr-51 -4.05E+00 6.34E+00 2.OOE+01 U TM 292314001 12/14/2011 Cs-134 1.39E-01 7.64E-01 2.49E+00 U TM 292314001 12/14/2011 Cs-137 9.25E+00 1.45E+00 2.13E+00 M TM 292314001 12/14/2011 Fe-59 -3.91E-02 1.55E+00 5.16E+00 U TM 292314001 12/14/2011 1-131 1.33E-01 1.49E-01 4.98E-01 U TM 292314001 12/14/2011 K-40 1.51E+03 7.11E+01 1.74E+01 TM 292314001 12/14/2011 La-140 -4.89E-01 9.25E-01 2.89E+00 U TM 292314001 12/14/2011 Mn-54 -2.OOE+00 8.17E-01 1.98E+00 U TM 292314001 12/14/2011 Nb-95 1.78E+00 7.5 1E-01 2.20E+00 U TM 292314001 12/14/2011 Ru-103 -1.06E+00 7.20E-01 2.17E+00 U TM 292314001 12/14/2011 Ru-106 -9.OOE+00 5.93E+00 1.75E+01 U TM 292314001 12/14/2011 Sb-124 4.01E-01 1.30E+00 4.26E+00 U TM 292314001 12/14/2011 Sb-125 -3.99E-01 1.61E+00 5.39E+00 U TM 292314001 12/14/2011 Se-75 -3.91E-01 8.29E-01 2.66E+00 U TM 292314001 12/14/2011 Th-228 7.99E+00 3.27E+00 4.22E+00 UI 216

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I TM TM 292314001 292314001 12/14/2011 12/14/2011 Zn-65 Zr-95

-4.96E-01 2.12E-0i 1.59E+00 1.20E+00 5.24E+00 3.92E+00 U

U I

TM 276543002 4/20/2011 Ac-228 4.57E+00 3.50E+00 1.16E+01 U TM TM 276543002 276543002 4/20/2011 4/20/2011 Ag-108m Ag-I 10m

-3.82E-01

-9.57E-02 7.60E-01 8.82E-01 2.46E+00 2.46E+00 U

U I

TM 276543002 4/20/2011 Ba-140 -8.91E-01 1.56E+00 4.84E+00 U TM TM TM 276543002 276543002 276543002 4/20/2011 4/20/2011 4/20/2011 Be-7 Ce-141 Ce-144

- 1.28E+00 1.40E+00

-9.27E+00 7.32E+00 1.63E+00 5.92E+00 2.39E+01 5.2 1E+00 1.72E+01 U

U U

I TM TM TM 276543002 276543002 276543002 4/20/2011 4/20/2011 4/20/2011 Co-57 Co-58 Co-60 1.86E+00

- 1.19E+00

-1.67E-01 8.3 1E-01 9.29E-01 9.32E-01 2.38E+00 2.86E+00 3.04E+00 U

U U

I TM 276543002 4/20/2011 Cr-51 -4.85E+00 8.75E+00 2.86E+01 U TM TM 276543002 276543002 4/20/2011 4/20/2011 Cs-134 Cs-137 2.52E-01 2.95E+00 9.98E-01 1.09E+00 3.38E+00 2.76E+00 U

M I

TM 276543002 4/20/2011 Fe-59 3.53E+00 2.40E+00 7.8 1E+00 U TM TM TM 276543002 276543002 276543002 4/20/2011 4/20/2011 4/20/2011 1-131 K-40 La-140 7.79E-02 1.72E+03

-8.91E-01 2.54E-01 8.77E+01 1.56E+00 8.62E-01 2.39E+01 4.84E+00 U

I TM TM TM 276543002 276543002 276543002 4/20/2011 4/20/2011 4/20/2011 Mn-54 Nb-95 Ru-103 2.67E-01 9.01E-01

-7.07E-01 7.96E-01 8.78E-01 9.56E-01 2.69E+00 2.85E+00 3.03E+00 I

TM 276543002 4/20/2011 Ru-106 -8.56E+00 7.62E+00 2.3 1E+01 TM TM 276543002 276543002 4/20/2011 4/20/2011 Sb-124 Sb-125 4.1OE-01

-1.08E+00 1.84E+00 2.19E+00 6.02E+00 7.08E+00 I

TM 276543002 4/20/2011 Se-75 9.16E-01 1.15E+00 3.84E+00 TM TM TM 276543002 276543002 276543002 4/20/2011 4/20/2011 4/20/2011 Th-228 Zn-65 Zr-95 1.41E+00

-2.96E+00 9.15E-01 2.11 E+00 2.24E+00 1.56E+00 5.35E+00 6.77E+00 5.08E+00 I,

TM TM TM 277468002 277468002 277468002 5/3/2011 5/3/2011 5/3/2011 Ac-228 Ag-108m Ag-I lOm 3.3 1E+00 9.79E-02

-2.24E-01 2.48E+00 4.52E-01 6.23E-01 7.84E+00 1.52E+00 1.75E+00 I

TM 277468002 5/3/2011 Ba-140 1.04E+00 7.76E-01 2.53E+00 TM TM 277468002 277468002 5/3/2011 5/3/2011 Be-7 Ce-141

-8.42E-01 1.19E+00 4.24E+00 9.14E-01 1.41E+01 2.83E+00 I TM 277468002 5/3/2011 Ce-144 3.84E-01 3.46E+00 1.11E+01 TM TM TM 277468002 277468002 277468002 5/3/2011 5/3/2011 5/3/2011 Co-57 Co-58 Co-60 2.72E-01

-7.55E-01 9.10E-01 4.45E-01 5.88E-01 6.55E-01 1.48E+00 1.77E+00 2.13E+00 U

TM TM TM 277468002 277468002 277468002 5/3/2011 5/3/2011 5/3/2011 Cr-51 Cs-134 Cs-137 4.15E+00 6.27E-02 2.52E+00 4.85E+00 6.85E-01 1.21E+00 1.55E+01 2.24E+00 1.86E+00 I

TM 277468002 5/3/2011 Fe-59 1.02E+00 1.29E+00 4.3 1E+00 TM TM 277468002 277468002 5/3/2011 5/3/2011 1-131 K-40 1.86E-01 1.87E+03 2.69E-01 8.55E+01 9.13E-01 1.61E+01 2.53E+00 I

TM 277468002 5/3/2011 La-140 1.04E+00 7.75E-01 U TM TM TM 277468002 277468002 277468002 5/3/2011 5/3/2011 5/3/2011 Mn-54 Nb-95 Ru-103

-9.69E-01

-4.21E-01

-1.38E+00 6.05E-01 5.75E-01 6.19E-01 1.75E+00 1.82E+00 1.66E+00 U

U U

I TM 277468002 5/3/2011 Ru-106 2.06E+00 4.80E+00 1.59E+01 U TM 277468002 5/3/2011 Sb-124 -1.07E+00 1.20E+00 3.70E+00 U I 217 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TM 277468002 5/3/2011 Sb-125 -8.89E-01 1.41E+00 4.63E+00 TM 277468002 5/3/2011 Se-75 5.37E-01 7.15E-01 2.3 1E+00 TM 277468002 5/3/2011 Th-228 -2.54E+00 1.60E+00 3.34E+00 TM 277468002 5/3/2011 Zn-65 -1.37E+00 1.45E+00 4.64E+00 TM 277468002 5/3/2011 Zr-95 -3.38E-01 9.95E-01 3.22E+00 TM 278644002 5/18/2011 Ac-228 4.19E+00 2.75E+00 8.73E+00 TM 278644002 5/18/2011 Ag-108m -1.37E+00 5.76E-01 1.50E+00 TM 278644002 5/18/2011 Ag-110m -1.02E+01 2.49E+00 1.88E+00 TM 278644002 5/18/2011 Ba-140 1.08E+00 1.58E+00 5.24E+00 TM 278644002 5/18/2011 Be-7 -5.94E+00 5.71E+00 1.78E+01 TM 278644002 5/18/2011 Ce-141 2.08E+00 1.95E+00 3.44E+00 TM 278644002 5/18/2011 Ce-144 7.36E-01 3.16E+00 1.06E+01 TM 278644002 5/18/2011 Co-57 1.01E-01 4.06E-01 1.37E+00 TM 278644002 5/18/2011 Co-58 6.49E-01 6.90E-01 2.28E+00 TM 278644002 5/18/2011 Co-60 -6.24E-01 7.05E-01 2.23E+00 TM 278644002 5/18/2011 Cr-51 5.25E+00 6.30E+00 2.12E+01 TM 278644002 5/18/2011 Cs-134 3.28E-01 7.64E-01 2.55E+00 TM 278644002 5/18/2011 Cs-137 -1.68E+00 1.38E+00 3.35E+00 TM 278644002 5/18/2011 Fe-59 1.03E+00 1.85E+00 5.98E+00 TM 278644002 5/18/2011 1-131 3.40E-01 1.75E-01 5.28E-01 TM 278644002 5/18/2011 K-40 1.84E+03 8.55E+01 1.81E+01 TM 278644002 5/18/2011 La- 140 1.08E+00 1.58E+00 5.24E+00 TM 278644002 5/18/2011 Mn-54 -7.lIE-01 6.30E-01 1.96E+00 TM 278644002 5/18/2011 Nb-95 7.50E-01 7.19E-01 2.38E+00 TM 278644002 5/18/2011 Ru-103 -9.82E-01 8.14E-01 2.15E+00 TM 278644002 5/18/2011 Ru-106 8.86E+00 5.85E+00 1.82E+01 TM 278644002 5/18/2011 Sb-124 -9.98E-01 1.43E+00 4.41E+00 TM 278644002 5/18/2011 Sb-125 -4.74E-01 1.44E+00 4.74E+00 TM 278644002 5/18/2011 Se-75 -9.20E-01 7.83E-01 2.37E+00 TM 278644002 5/18/2011 Th-228 1.13E-01 1.64E+00 3.41E+00 TM 278644002 5/18/2011 Zn-65 1.30E+00 1.69E+00 5.45E+00 TM 278644002 5/18/2011 Zr-95 -5.09E-01 1.24E+00 4.08E+00 TM 279336002 6/1/2011 Ac-228 3.63E+00 3.98E+00 1.16E+01 TM 279336002 6/1/2011 Ag-108m -9.57E-02 6.59E-01 2.14E+00 TM 279336002 6/1/2011 Ag-110m 2.03E+00 9.64E-01 2.67E+00 TM 279336002 6/1/2011 Ba-140 -1.48E+00 1.1 3E+00 3.19E+00 TM 279336002 6/1/2011 Be-7 -5.45E-01 6.41E+00 2.07E+01 TM 279336002 6/1/2011 Ce-141 6.74E-01 1.42E+00 4.14E+00 TM 279336002 6/1/2011 Ce-144 - 1.17E+00 4.80E+00 1.56E+01 TM 279336002 6/1/2011 Co-57 -7.76E-01 6.72E-01 2.08E+00 TM 279336002 6/1/2011 Co-58 -1.59E-01 7.95E-01 2.60E+00 TM 279336002 6/1/2011 Co-60 -6.69E-01 9.07E-01 2.86E+00 TM 279336002 6/1/2011 Cr-51 1.90E+00 6.77E+00 2.27E+01 TM 279336002 6/1/2011 Cs-134 1.38E+00 9.83E-01 3.21 E+00 TM 279336002 6/1/2011 Cs-137 1.83E+00 1.22E+00 2.75E+00 TM 279336002 6/1/2011 Fe-59 -3.68E-01 1.79E+00 5.98E+00 TM 279336002 6/1/2011 1-131 -4.55E-01 1.98E-01 5.29E-01 TM 279336002 6/1/2011 K-40 1.84E+03 9.29E+0 1 2.25E+01 TM 279336002 6/1/2011 La-140 -1.48E+00 1.13 E+00 3.19E+00 TM 279336002 6/1/20 11 Mn-54 -5.91E-01 8.18E-01 2.59E+00 TM 279336002 6/1/2011 Nb-95 -8.38E-03 7.75E-01 2.56E+00 218

I SAMPLE TYPE STATION Seabrook REMP Summary of 2011 Data LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I TM TM 24 24 279336002 279336002 6/1/2011 6/1/2011 Ru-103 Ru-106

-1.61E+00 4.56E+00 8.76E-01 6.76E+00 2.39E+00 2.28E+01 I

6/1/2011 -1.34E+00 1.69E+00 5. 1OE+00 I

TM 24 279336002 Sb-124 TM 24 279336002 6/1/2011 Sb-125 3.24E+00 2. 1OE+00 6.67E+00 TM 24 279336002 6/1/2011 Se-75 -1.89E-01 9.62E-01 3.23E+00 TM 24 279336002 6/1/2011 Th-228 1.63E+00 1.93E+00 5.03E+00 TM TM TM 24 24 24 279336002 279336002 280311002 6/1/2011 6/1/2011 6/15/2011 Zn-65 Zr-95 Ac-228 1.86E+00 1.17E-01

-9.2 1E-01 2.14E+00 1.43E+00 3.41E+00 7.2 1E+00 4.75E+00 9.24E+00 I

TM TM TM 24 24 24 280311002 280311002 280311002 6/15/2011 6/15/2011 6/15/2011 Ag-108m Ag-110m Ba-140

-4.75E-01

-5.43E-01

-3.98E-02 5.86E-01 7.26E-01 1.16E+00 1.79E+00 1.94E+00 3.86E+00 U

TM 24 280311002 6/15/2011 Be-7 2.84E+00 5.73E+00 1.89E+01 TM TM 24 24 280311002 280311002 6/15/2011 6/15/2011 Ce-141 Ce-144

-4.58E+00

-2.35E-01 2.09E+00 4.83E+00 4.36E+00 1.49E+01 I

TM 24 280311002 6/15/2011 Co-57 -1.07E-01 5.89E-01 1.91E+00 TM TM TM 24 24 24 280311002 280311002 280311002 6/15/2011 6/15/2011 6/15/2011 Co-58 Co-60 Cr-51

-3.28E-01 1.17E+00 9.35E-01 6.97E-01 7.70E-01 7.26E+00 2.29E+00 2.48E+00 2.44E+01 I

TM TM TM 24 24 24 280311002 280311002 280311002 6/15/2011 6/15/2011 6/15/2011 Cs-134 Cs-137 Fe-59 7.87E-01 1.82E+00 1.04E-02 7.87E-01 1.02E+00 1.83E+00 2.64E+00 2.04E+00 6.OOE+00 3

TM 24 280311002 6/15/2011 1-131 -1.59E-01 2.96E-01 9.75E-01 TM TM 24 24 280311002 280311002 6/15/2011 6/15/2011 K-40 La- 140 1.96E+03

-3.98E-02 9.49E+0 1 1.16E+00 1.80E+01 3.86E+00 I

TM 24 280311002 6/15/2011 Mn-54 -3.91E-01 6.18E-01 2.01E+00 TM TM TM 24 24 24 280311002 280311002 280311002 6/15/2011 6/15/2011 6/15/2011 Nb-95 Ru-103 Ru-106 7.86E-01

-9.23E-01 4.07E+00 6.99E-01 8.05E-01 5.63E+00 2.34E+00 2.46E+00 1.83E+01 I

TM TM TM 24 24 24 280311002 280311002 280311002 6/15/2011 6/15/2011 6/15/2011 Sb-124 Sb-125 Se-75 1.31E+00

-1 .66E+00 1.08E-01 1.33E+00 1.69E+00 8.59E-01 4.56E+00 5.29E+00 2.9 1E+00 I

280311002 6/15/2011 Th-228 2.60E+00 2.29E+00 4.50E+00 U

TM 24 TM 24 280311002 6/15/2011 Zn-65 -1.91E+00 1.68E+00 5.12E+00 TM 24 280311002 6/15/2011 Zr-95 2.11E-03 1.24E+00 4.17E+00 TM 24 282329002 7/13/2011 Ac-228 2.29E+00 3.86E+00 9.91E+00 TM TM TM 24 24 24 282329002 282329002 282329002 7/13/2011 7/13/2011 7/13/2011 Ag-108m Ag-110m Ba-140

-6.20E-01

-7.42E-01 1.24E-01 5.42E-01 7.28E-01 9.46E-01 1.65E+00 1.99E+00 3.15E+00 I

TM TM TM 24 24 24 282329002 282329002 282329002 7/13/2011 7/13/2011 7/13/2011 Be-7 Ce-141 Ce-144

-5.59E+00

-3.16E+00

-1.81E+00 5.59E+00 1.38E+00 4.29E+00 1.72E+01 3.55E+00 1.36E+01 I

7/13/2011 -1.02E+00 7.15E-01 1.80E+00 U

TM 24 282329002 Co-57 TM 24 282329002 7/13/2011 Co-58 8.19E-0I 6.94E-01 2.29E+00 TM 24 282329002 7/13/2011 Co-60 -1.08E+00 9.65E-01 2.74E+00 TM 24 282329002 7/13/2011 Cr-51 6.32E+00 6.36E+00 2.09E+01 TM TM TM 24 24 24 282329002 282329002 282329002 7/13/2011 7/13/2011 7/13/2011 Cs-134 Cs-137 Fe-59 2.05E+00 1.04E+00 4.15E-01 9.45E-01 1.12E+00 1.64E+00 2.88E+00 2.23E+00 5.35E+00 I

TM TM 24 24 282329002 282329002 7/13/2011 7/13/2011 1-131 K-40 4.38E-02 1.92E+03 2.50E-01 9.16E+01 8.43E-01 1.86E+01 I 219 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

TM 24 282329002 7/13/2011 La-140 1.24E-01 9.46E-01 3.15E+00 TM 24 282329002 7/13/2011 Mn-54 -8.52E-01 6.78E-01 2.07E+00 TM 24 282329002 7/13/2011 Nb-95 1.82E-01 6.53E-01 2.19E+00 TM 24 282329002 7/13/2011 Ru-103 -9.86E-01 7.24E-01 2.13E+00 TM 24 282329002 7/13/2011 Ru-106 1.78E-01 5.34E+00 1.80E+01 TM 24 282329002 7/13/2011 Sb-124 - 1.16E+00 1.41E+00 4.35E+00 TM 24 282329002 7/13/2011 Sb-125 2.84E-01 1.60E+00 5.24E+00 TM 24 282329002 7/13/2011 Se-75 -1.15E-01 8.20E-01 2.74E+00 TM 24 282329002 7/13/2011 Th-228 -5.71E-01 1.51E+00 4.11E+00 TM 24 282329002 7/13/2011 Zn-65 -2.21 E+00 1.80E+00 5.39E+00 TM 24 282329002 7/13/2011 Zr-95 -6.42E-02 1.18E+00 3.92E+00 TM 24 283016002 7/27/2011 Ac-228 6.66E+00 4.98E+00 1.24E+01 TM 24 283016002 7/27/2011 Ag-108m 2.99E-01 6.76E-01 2.19E+00 TM 24 283016002 7/27/2011 Ag-110m -2.24E+00 9.30E-01 2.36E+00 TM 24 283016002 7/27/2011 Ba-140 -9.90E-01 1.25E+00 3.94E+00 TM 24 283016002 7/27/2011 Be-7 2.46E+00 6.72E+00 2.16E+01 TM 24 283016002 7/27/2011 Ce-141 -3.29E-01 1.79E+00 4.55E+00 TM 24 283016002 7/27/2011 Ce-144 -6.44E-01 5.03E+00 1.61E+01 TM 24 283016002 7/27/2011 Co-57 1.02E+00 6.88E-01 2.13E+00 TM 24 283016002 7/27/2011 Co-58 2.68E+00 1.01E+00 2.8 1E+00 TM 24 283016002 7/27/2011 Co-60 1.12E+00 8.94E-01 2.93E+00 TM 24 283016002 7/27/2011 Cr-51 -1.21E+01 8.05E+00 2.41E+01 TM 24 283016002 7/27/2011 Cs-134 7.77E-01 9.65E-01 3.16E+00 TM 24 283016002 7/27/2011 Cs-137 2.45E+00 1.03E+00 3.02E+00 TM 24 283016002 7/27/2011 Fe-59 -9.59E-01 1.93E+00 6.27E+00 TM 24 283016002 7/27/2011 1-131 -2.46E-01 2.83E-01 9.09E-01 TM 24 283016002 7/27/2011 K-40 1.94E+03 9.85E+01 2.49E+0 I TM 24 283016002 7/27/2011 La-140 -9.90E-01 1.25E+00 3.94E+00 TM 24 283016002 7/27/2011 Mn-54 -1.53E+00 8.19E-01 2.24E+00 TM 24 283016002 7/27/2011 Nb-95 1.51E+00 8.52E-01 2.67E+00 TM 24 283016002 7/27/2011 Ru-103 -1.04E+00 8.25E-01 2.58E+00 TM 24 283016002 7/27/2011 Ru-106 4.90E+00 6.60E+00 2.20E+0 I TM 24 283016002 7/27/2011 Sb-124 8.70E-02 1.51E+00 5.04E+00 TM 24 283016002 7/27/2011 Sb-125 1.33E+00 2.05E+00 6.64E+00 TM 24 283016002 7/27/2011 Se-75 6.04E-01 1.02E+00 3.41E+00 TM 24 283016002 7/27/2011 Th-228 9.55E-01 2.09E+00 4.91 E+00 TM 24 283016002 7/27/2011 Zn-65 -2.30E+00 2.07E+00 6.42E+00 TM 24 283016002 7/27/2011 Zr-95 -4.70E-02 1.35E+00 4.4 1E+00 TM 24 284041002 8/11/2011 Ac-228 -1.07E+00 4.36E+00 1.28E+01 TM 24 284041002 8/11/2011 Ag-108m -2.47E+00 9.60E-01 2.33E+00 TM 24 284041002 8/11/2011 Ag-i 10m -7.97E-01 1.05E+00 2.80E+00 TM 24 284041002 8/11/2011 Ba-140 1.53E+00 4.23E+00 1.40E+01 TM 24 284041002 8/11/2011 Be-7 -1.30E+01 1.01E+01 3.04E+01 TM 24 284041002 8/11/2011 Ce-141 2.56E+00 2.68E+00 7.92E+00 TM 24 284041002 8/11/2011 Ce-144 - 1.00E+00 6.09E+00 1.96E+01 TM 24 284041002 8/11/2011 Co-57 7.50E-02 7.82E-01 2.54E+00 TM 24 284041002 8/11/2011 Co-58 -5.69E-01 1.09E+00 3.58E+00 TM 24 284041002 8/11/2011 Co-60 -1.24E+00 1.07E+00 3.2 1E+00 TM 24 284041002 8/11/2011 Cr-51 -1. 16E+01 1.39E+01 4.46E+01 TM 24 284041002 8/11/2011 Cs-134 -9.14E-01 1.13E+00 3.64E+00 TM 24 284041002 8/11/2011 Cs-137 3.29E+00 1.17E+00 2.96E+00 220

I SAMPLE TYPE STATION Seabrook REMP Summary of 2011 Data LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS U TM TM 24 24 284041002 284041002 8/11/2011 8/11/2011 Fe-59 1-131

-4.73E-01 1.21E-02 3.03E+00 1.76E-01 9.98E+00 5.79E-01 U

U I

24 284041002 8/11/2011 K-40 2.16E+03 1.09E+02 2.62E+01 TM TM TM 24 24 284041002 284041002 8/11/2011 8/11/2011 La-140 Mn-54 1.53E+00

-1.24E+00 4.23E+00 9.46E-01 1.40E+01 2.90E+00 U

U U

I TM 24 284041002 8/11/2011 Nb-95 1.1OE+00 1.33E+00 3.99E+00 TM TM TM 24 24 24 284041002 284041002 284041002 8/11/2011 8/11/2011 8/11/2011 Ru-103 Ru-106 Sb-124 1.21 E+00 1.37E+01

-3.87E-02 1.36E+00 8.75E+00 2.09E+00 4.45E+00 2.78E+01 6.75E+00 U

U U

I U

TM TM TM 24 24 24 284041002 284041002 284041002 8/11/2011 8/11/2011 8/11/2011 Sb-125 Se-75 Th-228 3.27E+00 8.82E-01

-1.37E+00 2.37E+00 1.33E+00 2.12E+00 7.69E+00 4.45E+00 5.77E+00 U

U I

8/11/2011 -2.75E+00 2.58E+00 8.OOE+00 U TM 24 284041002 Zn-65 TM 24 284041002 8/11/2011 Zr-95 -1.92E+00 2.22E+00 6.80E+00 U I

I I

i 3

I i

I I

I 221 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WG 274738001 3/23/2011 Ac-228 -7.67E-01 2.65E+00 7.39E+00 U WG 274738001 3/23/2011 Ag-108m -8.64E-01 5.20E-01 1.47E+00 U WG 274738001 3/23/2011 Ag-110m -5.03E-61 5.19E-01 1.64E+00 U WG 274738001 3/23/2011 Ba-140 1.31E+00 8.88E-01 3.OOE+00 U WG 274738001 3/23/2011 Be-7 -4.3 1E+00 4.87E+00 1.49E+01 U WG 274738001 3/23/2011 BETA 9.68E+00 1.80E+00 3.39E+00 WG 274738001 3/23/2011 Bi-214 2.75E+01 2.46E+00 3.49E+00 X(1)

WG 274738001 3/23/2011 Ce-141 -3.60E+00 1.69E+00 3.46E+00 U WG 274738001 3/23/2011 Ce-144 -1.64E-01 3.73E+00 1.26E+01 U WG 274738001 3/23/2011 Co-57 -3.50E-01 4.94E-01 1.64E+00 U WG 274738001 3/23/2011 Co-58 -8.99E-01 5.68E-01 1.64E+00 U WG 274738001 3/23/2011 Co-60 1.85E+00 7.34E-01 2.18E+00 U WG 274738001 3/23/2011 Cr-51 6.2 1E+00 5.64E+00 1.83E+01 U WG 274738001 3/23/2011 Cs-134 1.23E+00 6.62E-01 2.13E+00 U WG 274738001 3/23/2011 Cs-137 -1.73E-01 5.45E-01 1.80E+00 U WG 274738001 3/23/2011 Fe-59 -8.74E-01 1.14E+00 3.54E+00 U WG 274738001 3/23/2011 H-3 -1.63E+02 1.47E+02 5.12E+02 U WG 274738001 3/23/2011 1-131 2.36E-01 1.08E+00 3.54E+00 U WG 274738001 3/23/2011 K-40 -1.02E+00 1.02E+01 2.49E+0 I U WG 274738001 3/23/2011 La- 140 1.31E+00 8.86E-01 3.OOE+00 U WG 274738001 3/23/2011 Mn-54 -2.OOE-01 5.36E-01 1.74E+00 U WG 274738001 3/23/2011 Nb-95 1.19E+00 7.12E-01 2.05E+00 U WG 274738001 3/23/2011 Pb-212 -4.78E-01 1.65E+00 3.98E+00 U WG 274738001 3/23/2011 Pb-214 2.15E+01 3.1 OE+00 4.13E+00 X(1)

WG 274738001 3/23/2011 Ru-103 7.98E-01 6.08E-01 1.93E+00 U WG 274738001 3/23/2011 Ru-106 6.OOE-01 4.86E+00 1.64E+01 U WG 274738001 3/23/2011 Sb-124 6.80E-01 1.26E+00 4.27E+00 U WG 274738001 3/23/2011 Sb-125 4.12E+00 1.77E+00 5.18E+00 U WG 274738001 3/23/2011 Se-75 7.25E-01 7.54E-01 2.48E+00 U WG 274738001 3/23/2011 Th-228 -4.78E-01 1.65E+00 3.98E+00 U WG 274738001 3/23/2011 Zn-65 -5.24E-01 1.20E+00 3.26E+00 U WG 274738001 3/23/2011 Zr-95 8.09E-01 9.97E-01 3.35E+00 U WG 281223001 6/29/2011 Ac-228 -2.21 E+00 4.46E+00 7.07E+00 U WG 281223001 6/29/2011 Ag-108m 1.79E-01 4.56E-01 1.50E+00 U WG 281223001 6/29/2011 Ag-110m -6.55E-01 5.44E-01 1.45E+00 U WG 281223001 6/29/2011 Ba-140 - 1.89E+00 1.18E+00 2.98E+00 U WG 281223001 6/29/2011 Be-7 1.88E-01 4.53E+00 1.47E+01 U WG 281223001 6/29/2011 BETA 9.32E+00 1.51 E+00 3.19E+00 WG 281223001 6/29/2011 Bi-214 1.73E+00 2.34E+00 4.47E+00 U WG 281223001 6/29/2011 Ce-141 5.87E-01 1.04E+00 3.32E+00 U WG 281223001 6/29/2011 Ce-144 5.45E+00 3.79E+00 1.17E+0I U WG 281223001 6/29/2011 Co-57 1.26E+00 5.50E-01 1.55E+00 U WG 281223001 6/29/2011 Co-58 7.21E-01 5.3 1E-01 1.74E+00 U WG 281223001 6/29/2011 Co-60 8.17E-02 1.06E+00 2.16E+00 U WG 281223001 6/29/2011 Cr-51 -2.21 E+00 5.29E+00 1.73E+01 U WG 281223001 6/29/2011 Cs-134 7.50E-01 6.05E-01 2.OOE+00 U WG 281223001 6/29/2011 Cs-137 1.82E+00 8.89E-01 1.73E+00 UI WG 281223001 6/29/2011 Fe-59 1.29E+00 1.14E+00 3.71 E+00 U WG 281223001 6/29/2011 H-3 5.75E+01 1.21E+02 3.90E+02 U WG 281223001 6/29/2011 1-131 9.89E-01 1.18E+00 3.87E+00 U WG 281223001 6/29/2011 K-40 -2.56E+00 1.09E+01 2.50E+01 U 222

I SAMPLE TYPE STATION Seabrook REMP Summary of 2011 Data LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS U WG WG 281223001 281223001 6/29/2011 6/29/2011 La-140 Mn-54

-1.89E+00

-9.37E-01 1.18E+00 7.06E-01 2.98E+00 1.57E+00 U

U I

WG 281223001 6/29/2011 5.51E-01 5.03E-01 1.68E+00 U I

Nb-95 WG 281223001 6/29/2011 Pb-212 1.70E+00 1.69E+00 3.52E+00 U WG 281223001 6/29/2011 Pb-214 5.4 1E+00 2.3 1E+00 4.49E+00 UI WG 281223001 6/29/2011 Ru-103 -4.23E-01 5.90E-01 1.85E+00 U WG WG WG 281223001 281223001 281223001 6/29/2011 6/29/2011 6/29/2011 Ru-106 Sb-124 Sb-125

-1.86E+00 1.04E+00

-4.01E-02 4.4 1E+00 1.12E+00 1.34E+00 1.46E+01 3.79E+00 4.36E+00 U

U U

I WG WG WG 281223001 281223001 281223001 6/29/2011 6/29/2011 6/29/2011 Se-75 Th-228 Zn-65

-8.97E-01 1.70E+00

-2.92E+00 7.40E-01 1.69E+00 1.35E+00 2.33E+00 3.52E+00 3.45E+00 U

U U

U WG 281223001 6/29/2011 Zr-95 1.28E-01 8.30E-01 2.78E+00 U WG WG 286300001 286300001 9/15/2011 9/15/2011 Ac-228 Ag-108m 4.72E+00 5.28E-01 1.95E+00 3.80E-01 5.75E+00 1.22E+00 U

U I

WG 286300001 9/15/2011 Ag-I 10m -2.41E-01 3.83E-01 1.20E+00 U WG WG WG 286300001 286300001 286300001 9/15/2011 9/15/2011 9/15/2011 Ba-140 Be-7 BETA 1.42E+00 4.02E+00

2. 18E+00 1.55E+00 4.36E+00

1. 13E+00 5.24E+00 1.43E+01 3.07E+00 U

U U

i WG WG WG 286300001 286300001 286300001 9/15/2011 9/15/2011 9/15/2011 Bi-214 Ce-141 Ce-144 6.4 1E+00

-2.01E-01 1.03E+00 2.02E+00 1.01E+00 2.93E+00 2.60E+00 3.25E+00 9.54E+00 X(1)

U U

I WG 286300001 9/15/2011 Co-57 4.76E-01 3.88E-01 1.23E+00 U WG WG 286300001 286300001 9/15/2011 9/15/2011 Co-58 Co-60 2.08E-01 2.74E-01 4.60E-01 4.07E-01 1.56E+00 1.34E+00 1.75E+01 U

U U

I WG 286300001 9/15/2011 Cr-51 -8.33E-01 5.25E+00 WG WG WG 286300001 286300001 286300001 9/15/2011 9/15/2011 9/15/2011 Cs-134 Cs-137 Fe-59 6.47E-01 4.84E-02

-1.65E+00 5.02E-01 4.03E-01 1.08E+00 1.67E+00 1.30E+00 3.11 E+00 U

U U

I WG WG WG 286300001 286300001 286300001 9/15/2011 9/15/2011 9/15/2011 H-3 1-131 K-40 1.36E+01

-1.47E+00

-3.31 E+00 1.75E+02 2.44E+00 8.40E+00 5.74E+02 7.96E+00 1.82E+01 U

U U

I WG 286300001 9/15/2011 La-140 1.42E+00 1.55E+00 5.24E+00 U WG WG 286300001 286300001 9/15/2011 9/15/2011 Mn-54 Nb-95

-3.08E-01

-2.78E-01 3.97E-01 4.50E-01 1.47E+00 1.28E+00 1.47E+00 2.58E+00 U

U U

U WG 286300001 9/15/2011 Pb-212 8.43E-01 WG WG WG 286300001 286300001 286300001 9/15/2011 9/15/2011 9/15/2011 Pb-214 Ru-103 Ru-106 5.35E+00

-5.89E-01 5.18E+00

2. 19E+00 5.79E-01 3.99E+00 3.04E+00 1.79E+00 1.27E+01 X(1)

U U

I WG WG WG 286300001 286300001 286300001 9/15/2011 9/15/2011 9/15/2011 Sb-124 Sb-125 Se-75

-1.20E+00 6.08E-01

-9.30E-01 1.1 7E+00 1.07E+00 8.85E-01 3.59E+00 3.56E+00 1.99E+00 U

U U

I WG 286300001 9/15/2011 8.43E-01 1.47E+00 2.58E+00 U U

Th-228 WG 286300001 9/15/2011 Zn-65 -3.78E-01 1.02E+00 2.83E+00 U WG 286300001 9/15/2011 Zr-95 -5.95E-01 8.17E-01 2.66E+00 U WG 292542001 12/16/2011 Ac-228 -6.76E+00 4.38E+00 1.04E+01 U WG WG WG 292542001 292542001 292542001 12/16/2011 12/16/2011 12/16/2011 Ag-108m Ag-110m Ba-140

- 1.16E+00

-6.63E-01 8.96E-01 6.91E-01 6.94E-01 1.65E+00 1.92E+00 2.02E+00 5.46E+00 U

U U

I WG WG 292542001 292542001 12/16/2011 12/16/2011 Be-7 BETA

-3.70E+00 2.62E+00

6. 10E+00 1.25E+00 2.OOE+01 3.68E+00 U

U I 223 i

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WG 01 292542001 12/16/2011 Bi-214 7.74E+00 2.7 1E+00 4.05E+00 X(1)

WG 01 292542001 12/16/2011 Ce-141 1.19E+00 1.41E+00 4.7 1E+00 U WG 01 292542001 12/16/2011 Ce-144 3.32E+00 4.68E+00 1.58E+01 U WG 01 292542001 12/16/2011 Co-57 4.69E-01 6.17E-01 2.08E+00 U WG 01 292542001 12/16/2011 Co-58 -7.13E-01 7.30E-01 2.22E+00 U WG 01 292542001 12/16/2011 Co-60 1.28E+00 7.54E-01 2.48E+00 U WG 01 292542001 12/16/20 11 Cr-51 4.53E+00 7.90E+00 2.58E+01 U WG 01 292542001 12/16/2011 Cs-134 6.63E-01 7.86E-01 2.60E+00 U WG 01 292542001 12/16/2011 Cs-137 3.40E-01 6.84E-01 2.28E+00 U WG 01 292542001 12/16/2011 Fe-59 1.81E+00 1.54E+00 5.16E+00 U WG 01 292542001 12/16/2011 H-3 5.78E+01 7.97E+0 I 2.38E+02 U WG 01 292542001 12/16/2011 1-131 1.21E+00 2.17E+00 7.06E+00 U WG 01 292542001 12/16/2011 K-40 7.86E+00 1.25E+01 1.96E+01 U WG 01 292542001 12/16/20 11 La- 140 8.96E-01 1.65E+00 5.46E+00 U WG 01 292542001 12/16/2011 Mn-54 -7.77E-01 6.66E-01 1.98E+00 U WG 01 292542001 12/16/2011 Nb-95 -1.37E+00 1.09E+00 2.44E+00 U WG 01 292542001 12/16/2011 Pb-212 3.16E+00 2.55E+00 5.12E+00 U WG 01 292542001 12/16/2011 Pb-214 7.93E+00 3.63E+00 6.61E+00 UI WG 01 292542001 12/16/2011 Ru-103 2.57E-01 7.67E-01 2.59E+00 U WG 01 292542001 12/16/2011 Ru-106 -5.70E+00 6.11E+00 1.92E+01 U WG 01 292542001 12/16/2011 Sb-124 -2.46E+00 1.85E+00 5.20E+00 U WG 01 292542001 12/16/2011 Sb-125 -6.60E-01 1.92E+00 6.05E+00 U WG 01 292542001 12/16/2011 Se-75 -1.01E+00 9.91 E-0 I 3.09E+00 U WG 01 292542001 12/16/2011 Th-228 3.16E+00 2.55E+00 5.12E+00 U WG 01 292542001 12/16/2011 Zn-65 -1.37E+00 1.66E+00 4.42E+00 U WG 01 292542001 12/16/2011 Zr-95 -2.12E+00 1.69E+00 3.92E+00 U WG 13 274738002 3/23/2011 Ac-228 -2.88E+00 3.99E+00 9.81E+00 U WG 13 274738002 3/23/2011 Ag-108m 1.08E+00 6.69E-01 2.13E+00 U WG 13 274738002 3/23/2011 Ag-I 10m -6.92E+00 1.82E+00 2.2 1E+00 U WG 13 274738002 3/23/2011 Ba-140 2.08E+00 1.44E+00 4.72E+00 U WG 13 274738002 3/23/2011 Be-7 -1.66E+01 6.97E+00 1.74E+01 U WG 13 274738002 3/23/2011 BETA 3.68E+00 1.30E+00 3.44E+00 M WG 13 274738002 3/23/2011 Bi-214 4.15E+01 4.13E+00 4.88E+00 X(l)

WG 13 274738002 3/23/2011 Ce-141 -1.23E+00 1.15E+00 3.67E+00 U WG 13 274738002 3/23/2011 Ce-144 -5.01E+00 4.19E+00 1.33E+01 U WG 13 274738002 3/23/2011 Co-57 6.88E-01 5.15E-01 1.69E+00 U WG 13 274738002 3/23/2011 Co-5 8 1.07E-01 6.82E-01 2.27E+00 U WG 13 274738002 3/23/2011 Co-60 3.28E-01 8.OOE-01 2.69E+00 U WG 13 274738002 3/23/2011 Cr-51 -7.25E+00 6.16E+00 1.96E+01 U WG 13 274738002 3/23/2011 Cs-134 1.67E+00 9.46E-01 3.04E+00 U WG 13 274738002 3/23/2011 Cs-137 -4.80E+00 1.86E+00 3.8 1E+00 U WG 13 274738002 3/23/2011 Fe-59 -1.44E+00 1.48E+00 4.44E+00 U WG 13 274738002 3/23/2011 H-3 2.85E+02 1.75E+02 5.22E+02 U WG 13 274738002 3/23/2011 1-131 2.44E-0 1 1.16E+00 3.92E+00 U WG 13 274738002 3/23/2011 K-40 -2.39E+00 1.17E+01 3.20E+01 U WG 13 274738002 3/23/2011 La-140 2.08E+00 1.44E+00 4.72E+00 U WG 13 274738002 3/23/2011 Mn-54 -6.80E-01 6.85E-01 2.13E+00 U WG 13 274738002 3/23/2011 Nb-95 -3.23E-01 7.60E-01 2.49E+00 U WG 13 274738002 3/23/2011 Pb-212 6.76E-0 1 1.84E+00 4.28E+00 U WG 13 274738002 3/23/2011 Pb-214 4.45E+01 4.04E+00 4.8 1E+00 X(l)

WG 13 274738002 3/23/2011 Ru-103 -2.1 OE+00 8.92E-01 2.22E+00 U 224

Seabrook REMIP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS !

WG WG 274738002 274738002 3/23/2011 3/23/2011 Ru-106 Sb-124 4.35E+00 1.69E+00 6.19E+00 1.69E+00 2.01E+01 5.63E+00 U

U I

274738002 3/23/2011 2.11 E+00 1.91E+00 6.26E+00 U U

WG Sb-125 WG 274738002 3/23/2011 Se-75 -1.22E+00 9.5 1E-01 2.83E+00 U WG 274738002 3/23/2011 Th-228 6.76E-01 1.84E+00 4.28E+00 U WG 274738002 3/23/2011 Zn-65 -3.35E-01 1.72E+00 4.72E+00 U WG WG WG 274738002 281223002 281223002 3/23/2011 6/29/2011 6/29/2011 Zr-95 Ac-228 Ag-108m

-3.23E+00 1.18E+00 2.44E-01 1.42E+00 3.20E+00 5.04E-01 3.64E+00 8.33E+00 1.66E+00 U

U U

I WG WG WG 281223002 281223002 281223002 6/29/2011 6/29/2011 6/29/2011 Ag-110m Ba-140 Be-7 1.33E-01 1.39E-01

-1.42E+01 5.19E-01 1.58E+00 9.37E+00 1.76E+00 5.22E+00 1.79E+01 U

U U

I WG 281223002 6/29/2011 BETA 8.52E+00 1.56E+00 3.70E+00 WG WG 281223002 281223002 6/29/2011 6/29/2011 Bi-214 Ce-141 2.79E-01

-4.16E+00 2.30E+00 2.24E+00 4.68E+00 4.28E+00 U

U I

WG 281223002 6/29/2011 Ce-144 -4.37E+00 4.18E+00 1.30E+01 U WG WG WG 281223002 281223002 281223002 6/29/2011 6/29/2011 6/29/2011 Co-57 Co-58 Co-60

-1.81E+00

-6.01E-01

-8.71E-01 8.75E-01 5.94E-01 6.15E-01 1.82E+00 1.84E+00 1.80E+00 U

U U

I U

WG WG WG 281223002 281223002 281223002 6/29/2011 6/29/2011 6/29/2011 Cr-51 Cs-134 Cs-137 1.32E+00 3.15E-01

-2.33E-01 6.67E+00 6.39E-01 5.47E-01 2.24E+01 2.14E+00 1.8 1E+00 U

U I

WG 281223002 6/29/2011 Fe-59 7.77E-01 1.26E+00 4.14E+00 U WG WG 281223002 281223002 6/29/2011 6/29/2011 H-3 1-131 2.39E+01 2.20E+00 1.16E+02 2.35E+00 3.78E+02 7.74E+00 U

U I

WG 281223002 6/29/2011 K-40 3.90E+01 1.16E+0 1 2.77E+01 Ul WG WG WG 281223002 281223002 281223002 6/29/2011 6/29/2011 6/29/2011 La-140 Mn-54 Nb-95 1.39E-01

-3.31E-01 2.35E-01 i.58E+00 5.57E-01 6.11E-01 5.22E+00 1.79E+00 2.05E+00 U

U U

I U

WG WG WG 281223002 281223002 281223002 6/29/2011 6/29/2011 6/29/2011 Pb-212 Pb-214 Ru-103 5.46E-01 2.55E+00

-7.37E-01 1.96E+00 2.70E+00 7.12E-01 3.90E+00 4.89E+00 2.17E+00 U

U I

WG 281223002 6/29/2011 Ru-106 -6.19E+00 5.06E+00 1.58E+01 U WG WG 281223002 281223002 6/29/2011 6/29/2011 Sb-124 Sb-125 9.69E-0 1

-8.91E-01 1.38E+00 1.55E+00 4.62E+00 4.98E+00 U

U I WG 281223002 6/29/2011 Se-75 8.64E-01 8.13E-01 2.71E+00 U WG WG WG 281223002 281223002 281223002 6/29/2011 6/29/2011 6/29/2011 Th-228 Zn-65 Zr-95 5.46E-01

-2.87E+00

-2.44E-0 I 1.96E+00 1.38E+00 1.02E+00 3.90E+00 3.48E+00 3.38E+00 U

U U

I 7.15E+00 U WG WG WG 286300002 286300002 286300002 9/15/2011 9/15/2011 9/15/2011 Ac-228 Ag-108m Ag-110m

-2.54E+00 2.45E-02

-5.22E-02 3.50E+00 4.25E-01 4.98E-01 1.40E+00 1.61E+00 U

U I

WG 286300002 9/15/2011 Ba-140 1.22E+00 1.68E+00 5.54E+00 U WG WG 286300002 286300002 9/15/2011 9/15/2011 Be-7 BETA

-2.23E+00 2.03E+00 5.29E+00 1.09E+00 1.71E+01 2.92E+00 U

U 3 WG 286300002 9/15/2011 Bi-214 4.5 1E+00 2.57E+00 3.93E+00 UI WG WG WG 286300002 286300002 286300002 9/15/2011 9/15/2011 9/15/2011 Ce-141 Ce-144 Co-57 2.03E+00 4.11E-03

-4.28E-01 1.37E+00 3.69E+00 4.59E-01 3.9 1E+00 1.1OE+01 1.43E+00 U

U U

I 5.54E-01 1.88E+00 U WG WG 286300002 286300002 9/15/2011 9/15/2011 Co-58 Co-60 2.57E-01

-4.64E-01 5.35E-01 1.66E+00 U I 225 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WG 13 286300002 9/15/2011 Cr-51 1.40E+00 6.60E+00 2.20E+01 U 13 286300002 9/15/2011 Cs-134 -4.03E-01 5.89E-01 1.92E+00 U WG 13 286300002 9/15/2011 Cs-137 2.OOE-01 5.15E-01 1.68E+00 U WG WG 13 286300002 9/15/2011 Fe-59 4.3 1E-01 1.31E+00 4.38E+00 U 13 286300002 9/15/2011 H-3 2.06E+02 1.81E+02 5.62E+02 U WG 13 286300002 9/15/2011 1-131 3.11E+00 2.89E+00 9.45E+00 U WG 13 286300002 9/15/2011 K-40 -2.43E+00 8.68E+00 2.33E+01 U WG WG 13 286300002 9/15/2011 La-140 1.22E+00 1.68E+00 5.54E+00 U 13 286300002 9/15/2011 Mn-54 -2.2 1E-02 4.71 E-01 1.58E+00 U WG 13 286300002 9/15/2011 Nb-95 8.32E-01 6.01E-01 1.91 E+00 U WG WG 13 286300002 9/15/2011 Pb-212 4.83E-01 1.53E+00 3.55E+00 U WG 13 286300002 9/15/2011 Pb-214 1.30E+00 2.03E+00 4. 1OE+00 U WG 13 286300002 9/15/2011 Ru- 103 4.90E-01 6.60E-01 2.17E+00 U WG 13 286300002 9/15/2011 Ru-106 -5.42E+00 4.79E+00 1.46E+01 U WG 13 286300002 9/15/2011 Sb-124 1.62E+00 1.44E+00 4.74E+00 U WG 13 286300002 9/15/2011 Sb-125 -1.88E+00 1.38E+00 4.20E+00 U WG 13 286300002 9/15/2011 Se-75 -7.91E-01 7.32E-01 2.34E+00 U WG 13 286300002 9/15/2011 Th-228 4.83E-01 1.53E+00 3.55E+00 U WG 13 286300002 9/15/2011 Zn-65 -3.87E-01 1.07E+00 3.48E+00 U WG 13 286300002 9/15/2011 Zr-95 -1.86E+00 1.14E+00 3.2 1E+00 U WG 13 292542002 12/16/2011 Ac-228 -7.82E+00 4.11 E+00 8.87E+00 U WG 13 292542002 12/16/2011 Ag-108m 2.84E-01 8.20E-01 1.91E+00 U WG 13 292542002 12/16/2011 Ag-110m 4.17E-01 6.37E-01 2. 1OE+00 U WG 13 292542002 12/16/2011 Ba-140 1.42E+00 1.61E+00 5.41E+00 U WG 13 292542002 12/16/2011 Be-7 -4.70E+00 5.95E+00 1.92E+01 U WG 13 292542002 12/16/2011 BETA -4.92E-01 8.95E-01 3.08E+00 U WG 13 292542002 12/16/2011 Bi-214 2.12E-01 2.18E+00 5.19E+00 U WG 13 292542002 12/16/2011 Ce-141 5.OOE+00 1.88E+00 4.73E+00 UI WG 13 292542002 12/16/2011 Ce-144 2.79E+00 4.75E+00 1.52E+01 U WG 13 292542002 12/16/2011 Co-57 8.43E-01 6.41E-01 2.01 E+00 U WG 13 292542002 12/16/2011 Co-58 -2.10E-01 6.50E-01 2.16E+00 U WG 13 292542002 12/16/2011 Co-60 -2.14E-02 6.67E-01 2.23E+00 U WG 13 292542002 12/16/2011 Cr-51 1.42E+01 8.19E+00 2.54E+01 U WG 13 292542002 12/16/2011 Cs-134 -5.27E-01 7.42E-01 2.29E+00 U WG 13 292542002 12/16/2011 Cs-137 -2.36E-01 6.68E-01 2.15E+00 U WG 13 292542002 12/16/2011 Fe-59 1.50E+00 1.56E+00 5.17E+00 U WG 13 292542002 12/16/2011 H-3 1.69E+02 9.19E+01 2.32E+02 U WG 13 292542002 12/16/2011 1-131 4.38E-01 2.08E+00 6.74E+00 U WG 13 292542002 12/16/2011 K-40 4.25E+00 1.38E+01 2.08E+01 U 13 292542002 12/16/2011 La-140 1.42E+00 1.61E+00 5.41E+00 U WG WG 13 292542002 12/16/2011 Mn-54 -5.07E-01 5.89E-01 1.88E+00 U WG 13 292542002 12/16/2011 Nb-95 -2. 1OE+00 1.22E+00 2.41E+00 U WG 13 292542002 12/16/2011 Pb-212 -2.15E-01 1.80E+00 4.47E+00 U WG 13 292542002 12/16/2011 Pb-214 2.98E+00 2.56E+00 5.37E+00 U WG 13 292542002 12/16/2011 Ru-103 -8.56E-01 8.10E-01 2.55E+00 U WG 13 292542002 12/16/2011 Ru-106 2.43E+00 5.56E+00 1.84E+01 U WG 13 292542002 12/16/2011 Sb-124 4.03E+00 2.01E+00 6.46E+00 U WG 13 292542002 12/16/2011 Sb-125 -2.6 1E-02 1.66E+00 5.6 1E+00 U WG 13 292542002 12/16/2011 Se-75 1.04E+00 9.46E-01 3.09E+00 U 13 292542002 12/16/2011 Th-228 -2.15E-01 1.80E+00 4.47E+00 U WG WG 13 292542002 12/16/20 11 Zn-65 - 1.1OE+00 1.34E+00 4.16E+00 U 226

Seabrook REMP Summary of 2011 Data SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I WG WG 13 14 292542002 274738003 12/16/2011 3/23/2011 Zr-95 Ac-228 3.29E-01 5.65E+00 1.26E+00 3.35E+00 4.12E+00 1.07E+01 U

U I

14 274738003 3/23/2011 Ag-108m -3.19E-01 7.50E-01 2.47E+00 U U

WG WG 14 274738003 3/23/2011 Ag-I 10m -5.02E-01 7.69E-01 2.37E+00 U WG 14 274738003 3/23/2011 Ba-140 -6.70E-01, 1.28E+00 4.04E+00 U WG 14 274738003 3/23/2011 Be-7 2.93E+00 7.30E+00 2.43E+01 U WG 14 274738003 3/23/2011 BETA 2.70E+00 1.2 1E+00 3.56E+00 U WG 14 274738003 3/23/2011 Bi-214 2.17E+02 1.19E+01 5.06E+00 X(1)

WG 14 274738003 3/23/2011 Ce-141 1.99E+00 2.OOE+00 5.98E+00 U WG WG WG 14 14 14 274738003 274738003 274738003 3/23/2011 3/23/2011 3/23/2011 Ce-144 Co-57 Co-58

-2.26E+00 1.01E+00

-2.28E+00 6.59E+00 8.84E-01 9.84E-0 1 2.16E+01 2.85E+00 2.47E+00 U

U U

I WG 14 274738003 3/23/2011 Co-60 1.60E+00 8.95E-01 2.84E+00 U WG WG 14 14 274738003 274738003 3/23/2011 3/23/2011 Cr-51 Cs-134

-4.35E+00 1.63E+00 8.40E+00 1.00E+00 2.80E+01 3.12E+00 2.63E+00 U

U U

I WG 14 274738003 3/23/2011 Cs-137 -5.69E-01 9.61E-01 WG WG WG 14 14 14 274738003 274738003 274738003 3/23/2011 3/23/2011 3/23/2011 Fe-59 H-3 1-131 1.72E+00

-2.30E+02 1.14E+00 1.57E+00 1.44E+02 1.55E+00 5.19E+00 5.14E+02 5.20E+00 U

U U

I WG 14 274738003 3/23/2011 K-40 -1.48E+00 1.08E+01 3.28E+01 U WG 14 274738003 3/23/2011 3/23/2011 La-140 -6.70E-01

-9.67E-01 1.28E+00 9.43E-01 4.04E+00 2.44E+00 U

U i

WG 14 274738003 Mn-54 WG 14 274738003 3/23/2011 Nb-95 7.65E+00 2.09E+00 3.57E+00 UI WG 14 274738003 3/23/2011 Pb-212 1.34E+00 2.43E+00 5.35E+00 U WG 14 274738003 3/23/2011 Pb-214 2.45E+02 1.42E+01 6.54E+00 X(1)

WG 14 274738003 3/23/2011 Ru-103 -9.14E-02 8.47E-01 2.80E+00 U WG WG WG 14 14 14 274738003 274738003 274738003 3/23/2011 3/23/2011 3/23/2011 Ru-106 Sb-124 Sb-125

-8.74E+00 5.06E-01 5.03E-01 7.26E+00 1.74E+00 2.35E+00 2.22E+01 5.66E+00 7.85E+00 U

U U

I 1.31E+00 4.20E+00 U WG WG WG 14 14 14 274738003 274738003 274738003 3/23/2011 3/23/2011 3/23/2011 Se-75 Th-228 Zn-65 6.21E-01 1.34E+00 1.07E-02 2.43E+00 1.81E+00 5.35E+00 5.16E+00 U

U I

WG 14 274738003 3/23/2011 Zr-95 -1.69E+00 1.42E+00 4.27E+00 U WG WG 14 14 281223003 281223003 6/29/2011 6/29/2011 Ac-228 Ag-108m 1.74E+00

-4.90E-01 2.71E+00 6.16E-01 8.91E+00 1.97E+00 2.26E+00 U

U U

I WG 14 281223003 6/29/2011 Ag-I 10m 2.36E-01 6.84E-01 WG WG WG 14 14 14 281223003 281223003 281223003 6/29/2011 6/29/2011 6/29/2011 Ba-140 Be-7 BETA 6.38E-01

-1.08E+01 5.48E+00 1.75E+00 7.28E+00 1.35E+00 5.87E+00 2.18E+01 3.63E+00 U

U I 4.59E+00 X(1)

WG WG WG 14 14 14 281223003 281223003 281223003 6/29/2011 6/29/2011 6/29/2011 Bi-214 Ce-141 Ce-144 2.20E+01

-2.95E+00

-1.03E+01 3.46E+00 2.3 1E+00 6.03E+00 5.78E+00 1.74E+01 U

U I

WG 14 281223003 6/29/2011 Co-57 -5.22E-01 7.25E-01 2.3 1E+00 U WG WG 14 14 281223003 281223003 6/29/2011 6/29/2011 Co-58 Co-60 1.75E-01

-1.03E+00 7.42E-01 7.3 1E-01 9.14E+00 2.44E+00 2.16E+00 3.05E+01 U

U U

I WG 14 281223003 6/29/2011 Cr-51 5.70E+00 WG WG WG 14 14 14 281223003 281223003 281223003 6/29/2011 6/29/2011 6/29/2011 Cs-134 Cs-137 Fe-59 7.58E-02 1.43E-01

-9.51E-01 8.48E-01 7.26E-01 1.61E+00 2.78E+00 2.40E+00 5.04E+00 U

U U

I

-7.21E+01 1.13E+02 3.80E+02 U WG WG 14 14 281223003 281223003 6/29/2011 6/29/2011 H-3 1-131 4.44E+00 3.OOE+00 9.64E+00 U I

227

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WG 281223003 6/29/2011 K-40 1.25E+00 1.45E+01 2.93E+01 U WG 281223003 6/29/2011 La-140 6.38E-01 1.75E+00 5.87E+00 U WG 281223003 6/29/2011 Mn-54 7.53E-01 6.78E-01 2.2 i E+00 U WG 281223003 6/29/2011 Nb-95 1.13E+00 8.10E-01 2.61E+00 U WG 281223003 6/29/2011 Pb-212 1.24E-01 2.54E+00 5.21E+00 U WG 281223003 6/29/2011 Pb-214 2.10E+01 6.29E+00 7.84E+00 UI WG 281223003 6/29/2011 Ru-103 1.68E+00 9.35E-01 2.91E+00 U WG 281223003 6/29/2011 Ru-106 -4.67E+00 6.07E+00 1.84E+01 U WG 281223003 6/29/2011 Sb-124 - 1.19E+00 1.60E+00 5.02E+00 U WG 281223003 6/29/2011 Sb-125 -2.38E-02 1.88E+00 6.23E+00 U WG 281223003 6/29/2011 Se-75 4.25E-01 1.07E+00 3.60E+00 U WG 281223003 6/29/2011 Th-228 1.24E-01 2.54E+00 5.21 E+00 U WG 281223003 6/29/2011 Zn-65 -2.78E+00 1.78E+00 5.05E+00 U WG 281223003 6/29/2011 Zr-95 1.24E+00 1.42E+00 4.65E+00 U WG 286300003 9/15/2011 Ac-228 3.52E+00 3.91E+00 8.98E+00 U WG 286300003 9/15/2011 Ag-108m 4.76E-01 5.61E-01 1.82E+00 U WG 286300003 9/15/2011 Ag-ll0m -2.13E+00 7.95E-01 1.83E+00 U WG 286300003 9/15/2011 Ba-140 5.36E-01 1.73E+00 5.66E+00 U WG 286300003 9/15/2011 Be-7 -2.93E+00 5.98E+00 1.88E+01 U WG 286300003 9/15/2011 BETA 2.24E+00 1.11 E+00 2.96E+00 U WG 286300003 9/15/2011 Bi-214 2.76E+01 3.17E+00 4.5 1E+00 X(1)

WG 286300003 9/15/2011 Ce-141 -2.60E+00 1.82E+00 4.29E+00 U WG 286300003 9/15/2011 Ce-144 1.09E+00 4.46E+00 1.44E+01 U WG 286300003 9/15/2011 Co-57 1.45E-01 5.57E-01 1.81E+00 U WG 286300003 9/15/2011 Co-58 -5.82E-01 7.14E-01 2.22E+00 U WG 286300003 9/15/2011 Co-60 -3.22E-01 7.40E-01 2.37E+00 U WG 286300003 9/15/2011 Cr-51 -3.56E+00 9.33E+00 2.37E+01 U WG 286300003 9/15/2011 Cs-134 -4.97E-02 7.75E-01 2.53E+00 U WG 286300003 9/15/2011 Cs-137 -3.03E-01 9.41E-01 2.56E+00 U WG 286300003 9/15/2011 Fe-59 8.22E-01 1.39E+00 4.71E+00 U WG 286300003 9/15/2011 H-3 -1.58E+01 1.73E+02 5.72E+02 U WG 286300003 9/15/2011 1-131 -1.93E-01 2.16E+00 7.07E+00 U WG 286300003 9/15/2011 K-40 2.86E+00 1.38E+01 2.45E+01 U WG 286300003 9/15/2011 La-140 5.36E-01 1.73E+00 5.66E+00 U WG 286300003 9/15/2011 Mn-54 2.33E-01 6.40E-01 2.11E+00 U WG 286300003 9/15/2011 Nb-95 -2.5 1E-01 1.05E+00 2.40E+00 U WG 286300003 9/15/2011 Pb-212 2.53E+00 1.88E+00 3.72E+00 U WG 286300003 9/15/2011 Pb-214 2.60E+01 3.25E+00 4.72E+00 X(1)

WG 286300003 9/15/2011 Ru- 103 -5.06E-01 8.35E-01 2.60E+00 U WG 286300003 9/15/2011 Ru-106 3.11 E+00 5.37E+00 1.81E+01 U WG 286300003 9/15/2011 Sb-124 2.09E+00 1.89E+00 6.43E+00 U WG 286300003 9/15/2011 Sb-125 1.08E+00 1.7 1E+00 5.57E+00 U WG 286300003 9/15/2011 Se-75 1.13E+00 9.56E-01 3.13E+00 U WG 286300003 9/15/2011 Th-228 2.53E+00 1.88E+00 3.72E+00 U WG 286300003 9/15/2011 Zn-65 9.15E-01 1.43E+00 4.22E+00 U WG 286300003 9/15/2011 Zr-95 -1.11E+00 1.19E+00 3.67E+00 U WG 292542003 12/16/2011 Ac-228 3.47E+00 4.96E+00 8.96E+00 U WG 292542003 12/16/2011 Ag-108m -4.65E-01 5.91E-01 1.88E+00 U WG 292542003 12/16/2011 Ag-110m -1.63E+00 7.46E-01 2.02E+00 U WG 292542003 12/16/2011 Ba-140 -1.27E+00 1.66E+00 5.20E+00 U WG 292542003 12/16/2011 Be-7 -1.06E+01 6.65E+00 1.93E+01 U 228

I SAMPLE TYPE STATION Seabrook REMP Summary of 2011 Data LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I WG WG 292542003 292542003 12/16/2011 12/16/2011 BETA Bi-214 1.62E+00 7.88E+01 1.18E+00 5.12E+00 3.44E+00

4. 1OE+00 U

X(1)

I WG 292542003 12/16/2011 Ce-141 -8.89E-01 1.45E+00 4.65E+00 U WG WG 292542003 292542003 12/16/2011 12/16/2011 Ce-144 Co-57 5.34E+00

-1.13E-01 4.78E+00 5.95E-01 1.53E+01 1.95E+00 U

U I

WG 292542003 12/16/2011 Co-58 -7.10E-01 6.41E-01 1.98E+00 U WG WG WG 292542003 292542003 292542003 12/16/2011 12/16/2011 12/16/2011 Co-60 Cr-51 Cs-134 4.77E-02 1.46E+01 9.23E-01 6.49E-01 8.1OE+00 7.43E-01 2.18E+00 2.55E+01 2.47E+00 U

U U

I WG WG WG 292542003 292542003 292542003 12/16/2011 12/16/2011 12/16/2011 Cs-137 Fe-59 H-3

-1.78E+00 1.09E+00 5.90E+01 1.14E+00 1.38E+00 8.14E+01 2.54E+00 4.56E+00 2.43E+02 U

U U

I WG 292542003 12/16/2011 1-131 7.48E-01 2.03E+00 6.77E+00 U WG WG 292542003 292542003 12/16/2011 12/16/2011 K-40 La-140

-2.70E+00

-1.27E+00 8.79E+00 1.66E+00 2.69E+01 5.20E+00 U

U I

WG 292542003 12/16/2011 Mn-54 -5.86E-02 6.37E-01 2.11E+00 U WG WG WG 292542003 292542003 292542003 12/16/2011 12/16/2011 12/16/2011 Nb-95 Pb-212 Pb-214 1.80E+00

-2. 12E+00 8.39E+01 9.2 1E-01 2.OOE+00 5.97E+00 2.59E+00 4.53E+00 4.78E+00 U

U X(1)

I WG WG WG 292542003 292542003 292542003 12/16/2011 12/16/2011 12/16/2011 Ru-103 Ru-106 Sb-124 2.75E-02 1.75E+00

-8.21E-01 7.83E-01 5:81E+00 2.32E+00 2.56E+00 1.88E+01 5.3 1E+00 U

U U

I WG 292542003 12/16/2011 Sb-125 2.53E+00 1.85E+00 5.99E+00 U WG WG 292542003 292542003 12/16/2011 12/16/2011 Se-75 Th-228 7.56E-02

-2. 12E+00 9.25E-01 2.OOE+00 3.14E+00 4.53E+00 U

U I

WG 292542003 12/16/2011 Zn-65 6.2 1E-01 1.67E+00 4.46E+00 U WG 292542003 12/16/2011 Zr-95 - 1.IOE+00 1.20E+00 3.80E+00 U I

I U

I I

I 229 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg) wS 01 271331001 1/25/2011 Ac-228 -6.27E+00 3.64E+00 9.04E+00 wS 01 271331001 1/25/2011 Ag-108m -1.06E+00 6.35E-01 1.85E+00 wS 01 271331001 1/25/2011 Ag-110m 4.57E-01 6.53E-01 2.15E+00 WS 01 271331001 1/25/2011 Ba-140 1.94E+00 1.39E+00 4.55E+00 WS 01 271331001 1/25/2011 Be-7 6.98E+00 6.14E+00 2.01E+01 WS 01 271331001 1/25/2011 Bi-214 0.OOE+00 4.02E+00 5.72E+00 WS 01 271331001 1/25/2011 Ce-141 3.28E+00 1.50E+00 4.06E+00 WS 01 271331001 1/25/2011 Ce-144 -9.28E+00 5.08E+00 1.38E+01 wS 01 271331001 1/25/2011 Co-57 4.75E-01 5.80E-01 1.88E+00 wS 01 271331001 1/25/2011 Co-58 -2.95E-02 6.59E-01 2.12E+00 WS 01 271331001 1/25/2011 Co-60 1.59E-01 6.66E-01 2.2 1E+00 WS 01 271331001 1/25/2011 Cr-51 3.78E+00 6.4 1E+00 2.15E+01 wS 01 271331001 1/25/2011 Cs-134 1.12E+00 8.66E-01 2.79E+00 wS 01 271331001 1/25/2011 Cs-137 -7.84E-01 7.14E-01 2.17E+00 wS 01 271331001 1/25/2011 Fe-59 2.04E+00 1.51 E+00 5.OOE+00 WS 01 271331001 1/25/2011 1-131 5.54E-01 1.30E+00 4.34E+00 wS 01 271331001 1/25/2011 K-40 3.2 1E+02 2.59E+01 2.32E+01 WS 01 271331001 1/25/2011 La-140 1.94E+00 1.39E+00 4.55E+00 WS 01 271331001 1/25/2011 Mn-54 -6.60E-01 6.75E-01 2.04E+00 wS 01 271331001 1/25/2011 Nb-95 1.06E+00 7.01E-01 2.24E+00 wS 01 271331001 1/25/2011 Pb-212 -1.39E+00 1.90E+00 4.5 1E+00 wS 01 271331001 1/25/2011 Pb-214 -6.43E-01 2.09E+00 5.3 1E+00 WS 01 271331001 1/25/2011 Ru-103 -4.50E-01 7.12E-01 2.28E+00 WS 01 271331001 1/25/2011 Ru-106 -1.82E+00 5.88E+00 1.90E+01 wS 01 271331001 1/25/2011 Sb-124 -1.62E-02 1.79E+00 5.80E+00 WS 01 271331001 1/25/2011 Sb-125 -1.26E+00 1.81E+00 5.81E+00 WS 01 271331001 1/25/2011 Se-75 6.76E-01 8.55E-01 2.87E+00 wS 01 271331001 1/25/2011 Th-228 -1.39E+00 1.90E+00 4.5 1E+00 wS 01 271331001 1/25/2011 Zn-65 -3.14E-01 1.5 1E+00 4.96E+00 ws 01 271331001 1/25/2011 Zr-95 -8.12E-02 1.17E+00 3.77E+00 WS 01 273396001 2/23/2011 Ac-228 2.44E+00 5.30E+00 1.12E+01 WS 01 273396001 2/23/2011 Ag-108m 6.63E-01 6.27E-01 2.08E+00 wS 01 273396001 2/23/2011 Ag-i 10m -8.71E-01 7.79E-0 I 2.30E+00 WS 01 273396001 2/23/2011 Ba-140 -7.13E-01 1.70E+00 5.41 E+00 WS 01 273396001 2/23/2011 Be-7 -1.13E+00 6.64E+00 2.17E+01 WS 01 273396001 2/23/2011 Bi-214 3.8 1E+00 2.95E+00 6.41 E+00 WS 01 273396001 2/23/2011 Ce-141 6.46E-0 I 1.13E+00 3.74E+00 WS 01 273396001 2/23/2011 Ce-144 -6.85E-01 3.86E+00 1.28E+01 wS 01 273396001 2/23/2011 Co-57 -1.13E-01 4.84E-01 1.61E+00 wS 01 273396001 2/23/2011 Co-58 -8.OOE-01 8.72E-01 2.74E+00 WS 01 273396001 2/23/2011 Co-60 6.28E-01 8.53E-01 2.91 E+00 WS 01 273396001 2/23/2011 Cr-51 -4.49E+00 7.17E+00 2.37E+01 wS 01 273396001 2/23/2011 Cs-134 - 1.16E+00 9.96E-01 3.06E+00 wS 01 273396001 2/23/2011 Cs-137 1.49E+00 8.65E-01 2.72E+00 WS 01 273396001 2/23/2011 Fe-59 1.64E+00 1.96E+00 6.46E+00 WS 01 273396001 2/23/2011 1-131 1.62E+00 1.86E+00 6.23E+00 wS 01 273396001 2/23/2011 K-40 3.21 E+02 2.83E+01 2.98E+01 WS 01 273396001 2/23/2011 La-140 -7.13E-01 1.70E+00 5.41E+00 WS 01 273396001 2/23/2011 Mn-54 4.74E-01 7.89E-01 2.66E+00 WS 01 273396001 2/23/2011 Nb-95 -2.45E-01 8.02E-01 2.65E+00 WS 01 273396001 2/23/2011 Pb-212 1.82E+00 2.37E+00 5.01E+00 230

I SAMPLE TYPE STATION Seabrook REMP Summary of 2011 Data LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I WS wS 273396001 273396001 2/23/2011 2/23/2011 Pb-214 Ru- 103

-1.16E+00

-1.98E+00 2.34E+00 9.92E-01 5.37E+00 2.66E+00 U

273396001 2/23/2011 Ru-106 -8.96E+00 7.49E+00 2.2 1E+01 wS WS wS 273396001 273396001 2/23/2011 2/23/2011 Sb- 124 Sb-125

-1.74E+00 1.73E+00 2.16E+00 1.88E+00 6.58E+00 6.24E+00 I

wS 273396001 2/23/2011 Se-75 1.79E-01 9.07E-01 2.90E+00 WS WS wS 273396001 273396001 273396001 2/23/2011 2/23/2011 2/23/2011 Th-228 Zn-65 Zr-95 1.82E+00 5.50E-01 1.52E+00 2.37E+00 1.91E+00 1.48E+00 5.01 E+00 6.25E+00 5.OOE+00 I

WS wS wS 274498001 274498001 274498001 3/22/2011 3/22/2011 3/22/2011 Ac-228 Ag-108m Ag-110m 4.18E-01

-4.69E-01

-8.27E+00 3.70E+00 5.32E-01 2.06E+00 9.04E+00 1.69E+00 1.7 iE+00 I

WS 274498001 3/22/2011 Ba-140 -5.52E-01 9.76E-01 3.06E+00 WS wS 274498001 274498001 3/22/2011 3/22/2011 Be-7 Bi-214

-1.07E+00

-2.20E+00 5.03E+00 2.39E+00 1.64E+01 4.99E+00 I

wS 274498001 3/22/2011 Ce-141 4.80E-0 I 9.65E-01 2.90E+00 WS WS WS 274498001 274498001 274498001 3/22/2011 3/22/2011 3/22/2011 Ce-144 Co-57 Co-58 3.13E+00

-3.89E-01

-1.06E+00 3.43E+00 4.30E-01 6.5 1E-01 1.14E+01 1.40E+00 1.88E+00 U

wS WS wS 274498001 274498001 274498001 3/22/2011 3/22/2011 3/22/2011 Co-60 Cr-51 Cs-134 7.OOE-01 2.73E+00 1.63E-01 7.09E-01 5.11 E+00 7.70E-01 2.38E+00 1.74E+01 2.57E+00 I

3/22/2011 -2.74E+00 1.53E+00 3.42E+00 U

wS 274498001 Cs-137 wS 274498001 3/22/2011 Fe-59 -2.57E-01 1.42E+00 4.54E+00 WS 274498001 3/22/2011 1-131 1.81E+00 1.05E+00 3.33E+00 wS 274498001 3/22/2011 K-40 3.19E+02 2.36E+01 1.79E+01 WS wS WS 274498001 274498001 274498001 3/22/2011 3/22/2011 3/22/2011 La-140 Mn-54 Nb-95

-5.52E-01 4.02E-01 4.22E-01 9.76E-01 5.84E-01 6.4 1E-01 3.06E+00 1.95E+00 2.15E+00 U

WS WS wS 274498001 274498001 274498001 3/22/2011 3/22/2011 3/22/2011 Pb-212 Pb-214 Ru-103 4.97E-01

-5.69E-01

-3.83E-01 2.01E+00 1.89E+00 6.27E-01 3.70E+00 4.54E+00 2.OOE+00 I

WS 274498001 3/22/2011 Ru-106 1.08E+00 5.63E+00 1.82E+01 WS wS 274498001 274498001 3/22/2011 3/22/2011 Sb-124 Sb-125

-9.24E-01 1.05E+00 1.61E+00 1.63E+00 5.OOE+00 5.42E+00 2.40E+00 I

WS 274498001 3/22/2011 Se-75 -7.01E-02 7.50E-01 wS WS WS 274498001 274498001 274498001 3/22/2011 3/22/2011 3/22/2011 Th-228 Zn-65 Zr-95 4.97E-01 6.23E-01 3.47E-01 2.01E+00 1.33E+00 1.13E+00 3.70E+00 4.35E+00 3.80E+00 I

WS WS WS 278395001 277210001 277210001 3/22/2011 4/19/2011 4/19/2011 H-3 Ac-228 Ag-108m

-1.01E+02 3.12E+00

-4.63E-01 1.44E+02 2.4 1E+00 5.1OE-01 4.9 !E+02 7.73E+00 1.64E+00 I

wS 277210001 4/19/2011 Ag-110m -1.09E+00 6.18E-01 1.75E+00 WS WS 277210001 277210001 4/19/2011 4/19/2011 Ba-140 Be-7

-1.11E+00

-5.59E+00 1.81E+00 5.63E+00 5.70E+00 1.79E+01 I WS 277210001 4/19/2011 Bi-214 8.23E+00 2.65E+00 4.50E+00 wS WS WS 277210001 277210001 277210001 4/19/2011 4/19/2011 4/19/2011 Ce-141 Ce-144 Co-57 8.03E-01 1.53E+00 1.20E+00 1.30E+00 3.68E+00 5.66E-01 3.99E+00 1.22E+01 1.69E+00 I

2.06E+00 wS wS 277210001 277210001 4/19/2011 4/19/2011 Co-58 Co-60

-6.98E-01

-3.57E-02 6.76E-01 6.27E-01 2.07E+00 I 231 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WS 277210001 4/19/2011 Cr-51 -4.52E-01 7.OOE+00 2.25E+01 WS 277210001 4/19/2011 Cs-134 8.36E-01 7.13E-01 2.32E+00 WS 277210001 4/19/2011 Cs-137 1.78E+00 7.21E-01 2. 1OE+00 WS 277210001 4/19/2011 Fe-59 3.82E-01 1.40E+00 4.73E+00 WS 277210001 4/19/2011 1-131 3.16E+00 2.59E+00 8.18E+00 WS 277210001 4/19/2011 K-40 3.60E+02 2.30E+01 1.95E+01 WS 277210001 4/19/2011 La-140 -1.1IE+00 1.8 IE+00 5.70E+00 WS 277210001 4/19/2011 Mn-54 8.68E-01 5.92E-01 1.90E+00 WS 277210001 4/19/2011 Nb-95 1.03E+00 6.72E-01 2.15E+00 WS 277210001 4/19/2011 Pb-212 -1.80E+00 1.58E+00 3.57E+00 WS 277210001 4/19/2011 Pb-214 3.48E+00 1.53E+00 4.37E+00 WS 277210001 4/19/2011 Ru-103 -7.11 E-01 7.45E-01 2.37E+00 WS 277210001 4/19/2011 Ru-106 3.78E+00 5.36E+00 1.78E+01 WS 277210001 4/19/2011 Sb-124 2.08E+00 1.72E+00 5.68E+00 WS 277210001 4/19/2011 Sb-125 - 1.41E+00 1.58E+00 5.09E+00 WS 277210001 4/19/2011 Se-75 9.58E-01 8.26E-01 2.64E+00 WS 277210001 4/19/2011 Th-228 -1.80E+00 1.58E+00 3.57E+00 WS 277210001 4/19/2011 Zn-65 -9.74E-01 1.35E+00 4.33E+00 WS 277210001 4/19/2011 Zr-95 2.58E+00 1.29E+00 3.96E+00 WS 279560001 5/25/2011 Ac-228 -1.44E+00 3.15E+00 8.04E+00 WS 279560001 5/25/2011 Ag-108m 3.06E-01 4.75E-01 1.60E+00 WS 279560001 5/25/2011 Ag-110m -8.28E-01 5.82E-01 1.69E+00 WS 279560001 5/25/2011 Ba-140 -1.12E+00 1.98E+00 6.37E+00 WS 279560001 5/25/2011 Be-7 -1.09E+00 5.15E+00 1.70E+01 WS 279560001 5/25/2011 Bi-214 2.53E+00 2.07E+00 4.45E+00 WS 279560001 5/25/2011 Ce-141 -9.70E-01 1.27E+00 4.14E+00 WS 279560001 5/25/2011 Ce-144 4.81 E-01 3.49E+00 1.18E+01 WS 279560001 5/25/2011 Co-57 -2.78E-01 4.63E-01 1.54E+00 wS 279560001 5/25/2011 Co-58 -1.03E+00 6.52E-01 1.92E+00 WS 279560001 5/25/2011 Co-60 8.49E-0 I 6.34E-01 2.09E+00 WS 279560001 5/25/2011 Cr-51 2.76E+00 6.96E+00 2.23E+01 WS 279560001 5/25/2011 Cs-134 -1.08E+00 7.81E-01 2.23E+00 WS 279560001 5/25/2011 Cs-137 -2.93E-01 5.68E-01 1.80E+00 WS 279560001 5/25/2011 Fe-59 -1.02E+00 1.49E+00 4.7 1E+00 WS 279560001 5/25/2011 1-131 2. 1OE+00 2.95E+00 1.01E+01 WS 279560001 5/25/2011 K-40 3.06E+02 2.27E+01 1.86E+01 WS 279560001 5/25/2011 La-140 -1.12E+00 1.98E+00 6.37E+00 WS 279560001 5/25/2011 Mn-54 5.17E-02 5.67E-01 1.92E+00 WS 279560001 5/25/2011 Nb-95 8.43E-01 6.63E-01 2.14E+00 WS 279560001 5/25/2011 Pb-212 1.64E+00 1.91E+00 3.93E+00 WS 279560001 5/25/2011 Pb-214 9.91E-01 1.87E+00 4.29E+00 WS 279560001 5/25/2011 Ru-103 -1.07E+00 7.70E-01 2.3 1E+00 WS 279560001 5/25/2011 Ru-106 8.22E+00 5.39E+00 1.73E+01 WS 279560001 5/25/2011 Sb-124 3.20E+00 1.76E+00 5.82E+00 WS 279560001 5/25/2011 Sb-125 -2.26E+00 1.53E+00 4.60E+00 WS 279560001 5/25/2011 Se-75 6.44E-02 7.44E-01 2.41E+00 WS 279560001 5/25/2011 Th-228 1.64E+00 1.91E+00 3.93E+00 WS 279560001 5/25/2011 Zn-65 -1.33E-01 1.36E+00 4.44E+00 WS 279560001 5/25/2011 Zr-95 -1.07E+00 1.28E+00 3.90E+00 WS 281629001 6/20/2011 Ac-228 -2.26E+00 3.68E+00 8.87E+00 WS 281629001 6/20/2011 Ag-108m -5.92E-01 5.83E-01 1.80E+00 232

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I wS wS 281629001 281629001 6/20/2011 6/20/2011 Ag-i 10m Ba-140

-3.47E-02

-2.29E+00 6.18E-01 2.82E+00 2.07E+00 8.73E+00 U

U I

wS 281629001 6/20/2011 Be-7 4.40E+00 6.83E+00 2.24E+01 U WS wS 281629001 281629001 6/20/2011 6/20/2011 Bi-214 Ce-141 3.08E-01 8.91E-01 2.47E+00 2.59E+00 4.97E+00 5.02E+00 U

U I

wS 281629001 6/20/2011 Ce-144 3.46E+00 4.33E+00 1.39E+01 U wS WS wS 281629001 281629001 281629001 6/20/2011 6/20/2011 6/20/2011 Co-57 Co-58 Co-60

-1.17E-01 1.95E-01

-9.92E-01 5.74E-01 9.87E-01 1.06E+00 i .86E+00 2.54E+00 2.15E+00 U

U U

I WS WS wS 281629001 281629001 281629001 6/20/2011 6/20/2011 6/20/2011 Cr-51 Cs-134 Cs-137

-9.97E+00 6.72E-02 8.97E-01 9.29E+00 7.97E-01 6.65E-01 2.92E+01 2.41 E+00 2.21 E+00 U

U U

I wS 281629001 6/20/2011 Fe-59 -1.96E-01 1.66E+00 5.34E+00 U wS wS 281629001 281629001 6/20/2011 6/20/2011 1-131 K-40

-5.74E+00 3.15E+02 5.2 1E+00 2.54E+01 1.62E+01 1.97E+01 U DL I

WS 281629001 6/20/2011 La-140 -2.29E+00 2.82E+00 8.73E+00 WS wS WS 281629001 281629001 281629001 6/20/2011 6/20/2011 6/20/2011 Mn-54 Nb-95 Pb-212

-6.48E-01

-6.15E-01 2.54E+00 6.66E-01 1.20E+00 2.43E+00 2.07E+00 2.57E+00 4.56E+00 I

WS wS WS 281629001 281629001 281629001 6/20/2011 6/20/2011 6/20/2011 Pb-214 Ru-103 Ru-106

-4.97E+00

-3.25E-01 5.76E+00 2.46E+00 9.29E-01 5.43E+00 4.77E+00 2.97E+00 1.83E+01 I

wS 281629001 6/20/2011 Sb- 124 -8.88E-01 1.73E+00 5.45E+00 wS wS 281629001 281629001 6/20/2011 6/20/2011 Sb-125 Se-75

-1.62E+00 1.85E-01 1.8 1E+00 9.09E-0 I 5.65E+00 3.07E+00 U wS 281629001 6/20/2011 Th-228 2.54E+00 2.43E+00 4.56E+00 WS wS WS 281629001 281629001 284691001 6/20/2011 6/20/2011 6/20/2011 Zn-65 Zr-95 H-3

-1. 16E+00

-1.47E+00

-7.36E+01 1.52E+00 1.32E+00 1.24E+02 4.68E+00 4.07E+00 4.18E+02 I

wS WS wS 282639001 282639001 282639001 7/18/2011 7/18/2011 7/18/2011 Ac-228 Ag-108m Ag-110m

-6.59E+00 4.50E-01

-1.24E+00 4.09E+00 5.16E-01 6.19E-01 8.19E+00 1.71E+00 1.67E+00 I

wS 282639001 7/18/2011 Ba-140 -2.45E-01 1.09E+00 3.48E+00 wS WS 282639001 282639001 7/18/2011 7/18/2011 Be-7 Bi-214

-2.82E+00

-2.17E+00 5.29E+00 2.03E+00 1.72E+01 4.56E+00 I

WS 282639001 7/18/2011 Ce-141 -2.69E-01 1.81E+00 4.08E+00 wS WS wS 282639001 282639001 282639001 7/18/2011 7/18/2011 7/18/2011 Ce-144 Co-57 Co-58 5.20E+00

-6.26E-01

-1.09E-01 4.7 1E+00 6.07E-01 6.10E-01 1.47E+01 1.92E+00 i .96E+00 I

2.07E+00 wS wS wS 282639001 282639001 282639001 7/18/2011 7/18/2011 7/18/2011 Co-60 Cr-51 Cs-134 4.29E-01 7.26E+00

-1.29E+00 6.24E-01 6.35E+00 1.06E+00 2.1OE+01 2.20E+00 I

WS 282639001 7/18/2011 Cs-137 5.75E-01 5.94E-01 1.94E+00 WS wS 282639001 282639001 7/18/2011 7/18/2011 Fe-59 1-131

-1.36E+00

-6.39E-01 1.31E+00 1.44E+00 4.07E+00 4.76E+00 I wS 282639001 7/18/2011 K-40 3.27E+02 2.30E+01 1.80E+01 wS wS WS 282639001 282639001 282639001 7/18/2011 7/18/2011 7/18/2011 La-140 Mn-54 Nb-95

-2.45E-01

-1.04E+00 6.76E-01 1.09E+00 6.34E-01 6.20E-01 3.48E+00 1.78E+00 2.OOE+00 I

WS WS 282639001 282639001 7/18/2011 7/18/2011 Pb-212 Pb-214

-1.40E+00 1.42E+00 1.96E+00 2.54E+00 4.51 E+00 4.85E+00 I 233 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WS 282639001 7/18/2011 Ru-103 -1.84E+00 7.74E-01 1.97E+00 U WS 282639001 7/18/2011 Ru-106 6.18E+00 5.45E+00 1.77E+01 U WS 282639001 7/18/2011 Sb-124 6.75E-01 1.23E+00 4.07E+00 U WS 282639001 7/18/2011 Sb-125 -1.04E+00 1.60E+00 5.2 1E+00 U WS 282639001 7/18/2011 Se-75 -1.43E+00 9.29E-01 2.7 1E+00 U WS 282639001 7/18/2011 Th-228 -1.40E+00 1.96E+00 4.5 1E+00 U WS 282639001 7/18/2011 Zn-65 -3.21E+00 1.48E+00 3.90E+00 U WS 282639001 7/18/2011 Zr-95 3.85E-01 1.09E+00 3.56E+00 U WS 284909001 8/24/2011 Ac-228 -9.48E-01 3.77E+00 9.79E+00 U WS 284909001 8/24/2011 Ag-108m 8.37E-02 5.7 1E-01 1.89E+00 U WS 284909001 8/24/2011 Ag-110m -6.75E-01 7.02E-01 2.16E+00 U WS 284909001 8/24/2011 Ba-140 -9.79E-02 1.31E+00 4.23E+00 U WS 284909001 8/24/2011 Be-7 5.41E+00 6.3 1E+00 2.08E+01 U WS 284909001 8/24/2011 Bi-214 1.55E+00 1.89E+00 5.OOE+00 U wS 284909001 8/24/2011 Ce-141 4.58E+00 1.75E+00 4.36E+00 UI WS 284909001 8/24/2011 Ce-144 -2.17E+00 4.67E+00 1.44E+01 U WS 284909001 8/24/2011 Co-57 -2.22E-01 5.97E-01 1.92E+00 U WS 284909001 8/24/2011 Co-58 4.20E-01 6.64E-01 2.25E+00 U WS 284909001 8/24/2011 Co-60 -1.01E-01 7.37E-01 2.40E+00 U WS 284909001 8/24/2011 Cr-51 9.45E+00 7.15E+00 2.33E+01 U WS 284909001 8/24/2011 Cs-134 -4.44E-01 8.OOE-01 2.62E+00 U WS 284909001 8/24/2011 Cs-137 3.58E-01 7.24E-0 I 2.37E+00 U WS 284909001 8/24/2011 Fe-59 1.38E+00 1.66E+00 5.55E+00 U WS 284909001 8/24/2011 1-131 1.76E+00 1.75E+00 5.77E+00 U WS 284909001 8/24/2011 K-40 3.44E+02 2.67E+01 2.33E+01 wS 284909001 8/24/2011 La-140 -9.79E-02 1.31E+00 4.23E+00 U WS 284909001 8/24/2011 Mn-54 -1.11 E+00 7.1OE-01 2.11 E+00 U WS 284909001 8/24/2011 Nb-95 6.95E-01 7.15E-01 2.32E+00 U WS 284909001 8/24/2011 Pb-212 -2.80E+00 2.05E+00 4.54E+00 U WS 284909001 8/24/2011 Pb-214 8.89E-01 2.18E+00 5.30E+00 U WS 284909001 8/24/2011 Ru-103 -3.17E-01 7.65E-01 2.47E+00 U WS 284909001 8/24/2011 Ru-106 -9.66E+00 6.62E+00 1.93E+01 U WS 284909001 8/24/2011 Sb-124 8.1OE-0I 1.88E+00 6.20E+00 U WS 284909001 8/24/2011 Sb-125 -8.25E-01 1.79E+00 5.82E+00 U WS 284909001 8/24/2011 Se-75 9.23E-01 9.22E-01 3.06E+00 U WS 284909001 8/24/2011 Th-228 -2.80E+00 2.05E+00 4.54E+00 U WS 284909001 8/24/2011 Zn-65 -4.03E-01 1.48E+00 4.83E+00 U WS 284909001 8/24/2011 Zr-95 1.01E+00 1.25E+00 4.08E+00 U WS 285891001 9/12/2011 Ac-228 9.78E-01 3.17E+00 8.58E+00 U WS 285891001 9/12/2011 Ag-108m 2.3 1E-02 5.20E-01 1.68E+00 U WS 285891001 9/12/2011 Ag-i I10m -8.86E-01 6.11E-01 1.83E+00 U WS 285891001 9/12/2011 Ba-140 7.54E-01 1.12E+00 3.84E+00 U WS 285891001 9/12/2011 Be-7 -3.37E+00 5.42E+00 1.69E+01 U WS 285891001 9/12/2011 Bi-214 3.12E+00 2.12E+00 4.85E+00 U WS 285891001 9/12/2011 Ce-141 1.77E-01 1.13E+00 3.69E+00 U WS 285891001 9/12/2011 Ce-144 2.95E+00 3.84E+00 1.29E+01 U WS 285891001 9/12/2011 Co-57 7.16E-01 5.41E-01 1.78E+00 U WS 285891001 9/12/2011 Co-58 6.58E-01 6.34E-01 2.12E+00 U wS 285891001 9/12/2011 Co-60 -1.42E-02 5.92E-01 1.90E+00 U WS 285891001 9/12/2011 Cr-51 -3.34E+00 6.25E+00 2.01E+01 U WS 285891001 9/12/2011 Cs-134 1.06E+00 7.32E-01 2.42E+00 U 234

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I WS WS 285891001 285891001 9/12/2011 9/12/2011 Cs-137 Fe-59 5.67E-01 4.70E-01 7.33E-01 1.27E+00 2.15E+00 4.2 1E+00 U

U I

WS 285891001 9/12/2011 1-131 2.08E-01 1.42E+00 4.64E+00 U wS WS 285891001 285891001 9/12/2011 9/12/2011 K-40 La-140 3.02E+02 7.54E-01 2.26E+01 1.12E+00 2.01E+01 3.84E+00 U I

WS 285891001 9/12/2011 Mn-54 2.98E-01 6.12E-01 2.05E+00 U WS WS WS 285891001 285891001 285891001 9/12/2011 9/12/2011 9/12/2011 Nb-95 Pb-212 Pb-214

-1.06E-01 4.14E-01

-1.39E+00 7.92E-01 2.OOE+00 1.89E+00 1.98E+00 4.11E+00 4.85E+00 U

U U

I WS WS WS 285891001 285891001 285891001 9/12/2011 9/12/2011 9/12/2011 Ru-103 Ru-106 Sb-124

-6.33E-01

-4.29E+00

-6.18E-01 6.93E-01 5.05E+00 1.41E+00 2.1OE+00 1.61E+01 4.54E+00 U

U U

I WS 285891001 9/12/2011 Sb-125 1.43E+00 1.69E+00 5.50E+00 U WS WS 285891001 285891001 9/12/2011 9/12/2011 Se-75 Th-228

-9.66E-01 4.14E-01 8.78E-01 2.OOE+00 2.73E+00 4.11 E+00 U

U I

WS 285891001 9/12/2011 Zn-65 -8.30E-02 1.23E+00 3.99E+00 U WS WS WS 285891001 286617001 286617001 9/12/2011 9/21/2011 9/21/2011 Zr-95 Ac-228 Ag-108m 1.31 E+00

- 1.14E+00

-3.18E-01 1.09E+00 3.36E+00 5.43E-01 3.66E+00 9.09E+00 i.75E+00 U

U U

I WS WS WS 286617001 286617001 286617001 9/21/2011 9/21/2011 9/21/2011 Ag-il0m Ba-140 Be-7

-2.34E-01 1.49E-01 2.59E+00 6.05E-01 1.16E+00 5.33E+00 1.91E+00 3.9 1E+00 1.76E+01 U

U U

I WS 286617001 9/21/2011 Bi-214 1.07E+01 2.46E+00 4.04E+00 X(1)

WS WS 286617001 286617001 9/21/2011 9/21/2011 Ce-141 Ce-144

-9.35E-01 7.86E+00 1.18E+00 4.47E+00 3.69E+00 1.36E+01 U

U I wS 286617001 9/21/2011 Co-57 3.63E-02 5.60E-01 1.83E+00 U wS wS WS 286617001 286617001 286617001 9/21/2011 9/21/2011 9/21/2011 Co-58 Co-60 Cr-51i 1.08E-01 5.67E-01.

-7.98E-01 5.67E-01 6.65E-01 6.18E+00 1.91E+00 2.2 1E+00 2.07E+01 U

U U

I wS WS WS 286617001 286617001 286617001 9/21/2011 9/21/2011 9/21/2011 Cs-134 Cs-137 Fe-59

-9.42E-02

-1.17E+00

-1.54E-01 7.69E-01 7.15E-01 1.25E+00 2.57E+00 i .98E+00 4.08E+00 U

U U

I WS 286617001 9/21/2011 1-131 9.97E-01 1.31E+00 4.38E+00 U WS WS 286617001 286617001 9/21/2011 9/21/2011 K-40 La-140 2.62E+02 1.49E-01 2.37E+01 1.16E+00 2.01E+01 3.9 1E+00 U I

WS 286617001 9/21/2011 Mn-54 -2.96E-01 5.88E-01 1.92E+00 U wS WS WS 286617001 286617001 286617001 9/21/2011 9/21/2011 9/21/2011 Nb-95 Pb-212 Pb-214 3.42E-01 3.86E+00 4.9 1E+00 6.60E-01 1.88E+00 2.46E+00 2.24E+00 3.77E+00 4.3 1E+00 U

UI UI I

WS wS WS 286617001 286617001 286617001 9/21/2011 9/21/2011 9/21/2011 Ru-103 Ru-106 Sb-124

-2.08E+00 7.35E-02 1.73E+00 8.35E-01 5.25E+00 1.48E+00 1.97E+00 1.70E+01 5.08E+00 U

U U

I wS 286617001 9/21/2011 Sb-125 -1.42E+00 1.66E+00 5.24E+00 U WS WS 286617001 286617001.

9/21/2011 9/21/2011 Se-75 Th-228

-1.09E-01 3.86E+00 7.98E-01 1.88E+00 2.69E+00 3.77E+00 U

UI I wS 286617001 9/21/2011 Zn-65 4.60E-01 1.40E+00 4.04E+00 U WS wS WS 286617001 290821001 289163001 9/21/2011 9/21/2011 10/25/2011 Zr-95 H-3 Ac-228

-1.02E+00 1.13E+02 1.55E+00 1.1OE+00 1.77E+02 5.29E+00 3.48E+00 5.65E+02 1.15E+01 U

U U

I WS wS 289163001 289163001 10/25/2011 10/25/2011 Ag-108m Ag-110m

-1.68E-01

-3.50E-01 6.94E-01 6.93E-01 2.20E+00 2.23E+00 U

U I 235 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WS 289163001 10/25/2011 Ba-140 2.OOE+00 1.55E+00 5.17E+00 WS 289163001 10/25/2011 Be-7 1.17E+00 6.59E+00 2.23E+01 WS 289163001 10/25/2011 Bi-214 -1.38E+00 2.47E+00 5.73E+00 WS 289163001 10/25/2011 Ce-141 2.54E+00 1.70E+00 4.91 E+00 WS 289163001 10/25/2011 Ce-144 4.87E+00 5.3 1E+00 1.72E+01 WS 289163001 10/25/2011 Co-57 -7.17E-01 6.91 E-0 I 2.24E+00 WS 289163001 10/25/2011 Co-58 -4.09E+00 1.66E+00 2.04E+00 WS 289163001 10/25/2011 Co-60 2.7 1E-02 7.78E-01 2.57E+00 WS 289163001 10/25/2011 Cr-51 -6.32E+00 7.94E+00 2.49E+01 WS 289163001 10/25/2011 Cs-134 2.19E-01 8.95E-01 2.94E+00 WS 289163001 10/25/2011 Cs-137 7.81E-01 7.45E-01 2.48E+00 WS 289163001 10/25/2011 Fe-59 3.47E-01 1.64E+00 5.5 1E+00 WS 289163001 10/25/2011 1-131 -7.62E-01 1.80E+00 5.74E+00 WS 289163001 10/25/2011 K-40 3.29E+02 2.59E+01 2.17E+01 WS 289163001 10/25/2011 La-140 2.OOE+00 1.55E+00 5.17E+00 WS 289163001 10/25/2011 Mn-54 -5.81E-01 7.09E-01 2.18E+00 WS 289163001 10/25/2011 Nb-95 1.81E-01 7.81 E-0 I 2.57E+00 WS 289163001 10/25/2011 Pb-212 2.3 1E+00 2.60E+00 5.63E+00 WS 289163001 10/25/2011 Pb-214 -4.90E+00 2.74E+00 5.90E+00 WS 289163001 10/25/2011 Ru-103 -2.07E+00 9.92E-01 2.69E+00 WS 289163001 10/25/2011 Ru-106 5.15E+00 6.80E+00 2.27E+01 WS 289163001 10/25/2011 Sb-124 -3.62E-01 1.84E+00 5.87E+00 WS 289163001 10/25/2011 Sb-125 3.08E+00 2.12E+00 6.69E+00 WS 289163001 10/25/2011 Se-75 1.86E+00 1.12E+00 3.52E+00 WS 289163001 10/25/2011 Th-228 2.3 1E+00 2.60E+00 5.63E+00 WS 289163001 10/25/2011 Zn-65 1.81E+00 1.79E+00 6.01 E+00 WS 289163001 10/25/2011 Zr-95 -8.56E-01 1.43E+00 4.54E+00 WS 290710001 11/17/2011 Ac-228 1.1 8E+00 3.95E+00 6.38E+00 WS 290710001 11/17/2011 Ag-108m 1.68E-01 5.13E-01 1.66E+00 WS 290710001 11/17/2011 Ag-110m -1.09E+00 5.8 1E-01 1.64E+00 WS 290710001 11/17/2011 Ba-140 1.72E-01 1.36E+00 3.64E+00 WS 290710001 11/17/2011 Be-7 -3.7 1E+00 5.OOE+00 1.55E+01 WS 290710001 11/17/2011 Bi-214 2.87E+00 2.79E+00 4.63E+00 WS 290710001 11/17/2011 Ce-141 1.73E+00 1.25E+00 3.45E+00 WS 290710001 11/17/2011 Ce-144 2.12E+00 3.84E+00 1.23E+01 WS 290710001 11/17/2011 Co-57 -8.88E-01 5.52E-01 1.62E+00 WS 290710001 11/17/2011 Co-58 1.76E-01 5.51E-01 1.81E+00 WS 290710001 11/17/2011 Co-60 -5.31E-01 6.07E-01 1.88E+00 WS 290710001 11/17/2011 Cr-51 1.29E+01 6.34E+00 1.90E+01 WS 290710001 11/17/2011 Cs-134 -5.80E-01 9.5 1E-01 2.19E+00 WS 290710001 11/17/2011 Cs-137 1.25E+00 6.53E-01 2.03E+00 WS 290710001 11/17/2011 Fe-59 4.32E-01 1.15E+00 3.86E+00 WS 290710001 11/17/2011 1-131 1.64E+00 1.20E+00 3.82E+00 WS 290710001 11/17/2011 K-40 3.24E+02 2.30E+01 1.79E+01 WS 290710001 11/17/2011 La-140 1.72E-01 1.36E+00 3.64E+00 WS 290710001 11/17/2011 Mn-54 -3.19E-01 5.27E-01 1.66E+00 WS 290710001 11/17/2011 Nb-95 -2.95E-01 5.47E-01 1.75E+00 WS 290710001 11/17/2011 Pb-212 8.32E-01 1.98E+00 3.47E+00 WS 290710001 11/17/2011 Pb-214 2.97E-01 2.30E+00 4.64E+00 WS 290710001 11/17/2011 Ru-103 -4.86E-01 6.86E-01 1.95E+00 WS 290710001 11/17/2011 Ru- 106 6.73E+00 5.14E+00 1.68E+01 236

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I ws wS 290710001 290710001 11/17/2011 11/17/2011 Sb-124 Sb-125 2.68E+00 1.29E+00 1.53E+00 1.57E+00 4.99E+00 5.05E+00 U

U I

290710001 11/17/2011 Se-75 1.16E-01 7.68E-01 2.56E+00 U wS WS wS 290710001 290710001 11/17/2011 11/17/2011 Th-228 Zn-65 8.32E-01

-3.04E+00 1.98E+00 1.46E+00 3.47E+00 3.94E+00 U

U U

I wS 290710001 11/17/2011 Zr-95 2.65E-01 9.83E-01 3.24E+00 WS wS WS 292310001 292310001 292310001 12/13/2011 12/13/2011 12/13/2011 Ac-228 Ag-108m Ag-il0m

-5.40E+00 4.04E-01

-1.83E-01 4.14E+00 5.64E-01 5.94E-01 9.54E+00 1.82E+00 1.93E+00 U

U U

I U

wS ws ws 292310001 292310001 292310001 12/13/2011 12/13/2011 12/13/2011 Ba-140 Be-7 Bi-214

-1.69E+00 4.97E+00

-1.08E+00 1.32E+00 5.65E+00 2.19E+00 3.9 1E+00 1.90E+01 4.89E+00 U

U I

12/13/2011 3.11 E+00 2.17E+00 3.8 1E+00 U ws 292310001 Ce-141 ws ws 292310001 292310001 12/13/2011 12/13/2011 Ce-144 Co-57 1.60E+00

-1.17E+00 4.59E+00 6.63E-01 1.47E+01 1.87E+00 U

U U

I WS 292310001 12/13/2011 Co-58 -3.14E-02 6.50E-01 2.10E+00 wS wS WS 292310001 292310001 292310001 12/13/2011 12/13/2011 12/13/2011 Co-60 Cr-51 Cs-134 1.18E+00

-8.94E+00 4.22E-02 7.41E-01 7.07E+00 7.92E-01 2.4 1E+00 2.14E+01 2.57E+00 U

U U

I U

WS wS wS 292310001 292310001 292310001 12/13/2011 12/13/2011 12/13/2011 Cs-137 Fe-59 1-131 1.14E+00

-1.54E+00 2.23E+00 7.03E-01 1.43E+00 1.64E+00 2.25E+00 4.40E+00 5.2 1E+00 U

U I

wS 292310001 12/13/2011 K-40 3.33E+02 2.63E+01 1.70E+01 ws ws 292310001 292310001 12/13/2011 12/13/2011 La-140 Mn-54

-1.69E+00

-1.08E+00 1.32E+00 1.02E+00 3.91 E+00 2.05E+00 2.27E+00 I

ws 292310001 12/13/2011 Nb-95 2.39E-01 6.94E-01 wS ws wS 292310001 292310001 292310001 12/13/2011 12/13/2011 12/13/2011 Pb-212 Pb-214 Ru-103 2.30E-01

-1.07E+00

-1.26E+00 2.7 1E+00 2.25E+00 7.60E-01 4.OOE+00 5.29E+00 2.23E+00 I

WS WS wS 292310001 292310001 292310001 12/13/2011 12/13/2011 12/13/2011 Ru-106 Sb-124 Sb-125

-5.19E+00

-1.25E+00

-2.16E+00 5.65E+00 1.72E+00 1.82E+00 1.77E+01 5.40E+00 5.42E+00 I

WS 292310001 12/13/2011 Se-75 -1.05E+00 9.03E-01 2.80E+00 WS WS 292310001 292310001 12/13/2011 12/13/2011 Th-228 Zn-65 2.30E-01

-1.76E+00 2.71E+00 1.45E+00 4.OOE+00 4.36E+00 I ws 292310001 12/13/2011 Zr-95 -1.38E-01 1.20E+00 3.88E+00 WS wS WS 295628001 279560004 279560004 12/13/2011 6/6/2011 6/6/2011 H-3 Ac-228 Ag-108m 2.66E+02 5.4 1E+00

-1.02E-01 1.47E+02 5.30E+00 6.21E-01 4.35E+02 1.20E+01 2.05E+00 I

wS WS WS 279560004 279560004 279560004 6/6/2011 6/6/2011 6/6/2011 Ag-110m Ba-140 Be-7

-1.27E+00 1.28E+00 7.08E+00 7.61E-01 1.63E+00 6.34E+00 2.07E+00 5.48E+00 2.09E+01 i

WS 279560004 6/6/2011 Bi-214 3.1OE+00 2.99E+00 4.87E+00 wS ws 279560004 279560004 6/6/2011 6/6/2011 Ce-141 Ce-144

-1.71E+00 4.38E+00 1.12E+00 3.87E+00 3.36E+00 1.26E+01 1.55E+00 I

ws 279560004 6/6/2011 Co-57 -4.09E-02 4.65E-01 ws wS WS 279560004 279560004 279560004 6/6/2011 6/6/2011 6/6/2011 Co-58 Co-60 Cr-51

-2.42E-01 8.45E-01 2.37E+00 1.08E+00 8.97E-01 6.29E+00 2.76E+00 3.06E+00 2.14E+01 I

3.07E+00 WS WS 279560004 279560004 6/6/2011 6/6/2011 Cs-134 Cs-137

-1.37E+00

-9.01E-01 1.27E+00 1.34E+00 2.81 E+00 I 237 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WS 02 279560004 6/6/2011 Fe-59 3.07E+00 2.08E+00 6.74E+00 U WS 02 279560004 6/6/2011 H-3 4.92E+01 1.20E+02 3.89E+02 U WS 02 279560004 6/6/2011 1-131 4.76E-01 1.34E+00 4.53E+00 U WS 02 279560004 6/6/2011 K-40 1.59E+02 2.32E+01 2.73E+01 WS 02 279560004 6/6/2011 La-140 1.28E+00 1.63E+00 5.48E+00 U WS 02 279560004 6/6/2011 Mn-54 -6.37E-01 7.90E-01 2.50E+00 U WS 02 279560004 6/6/2011 Nb-95 6.80E-01 8.24E-01 2.79E+00 U WS 02 279560004 6/6/2011 Pb-212 3.22E+00 2.36E+00 4.06E+00 U WS 02 279560004 6/6/2011 Pb-214 1.95E+00 2.64E+00 5.68E+00 U WS 02 279560004 6/6/2011 Ru-103 -1.37E+00 8.72E-01 2.51E+00 U WS 02 279560004 6/6/2011 Ru-106 3.46E-01 6.93E+00 2.24E+01 U WS 02 279560004 6/6/2011 Sb-124 9.54E-01 1.90E+00 6.38E+00 U WS 02 279560004 6/6/2011 Sb-125 -1.60E+00 1.93E+00 6.14E+00 U WS 02 279560004 6/6/2011 Se-75 -6.36E-01 1.08E+00 3.01E+00 U WS 02 279560004 6/6/2011 Th-228 3.22E+00 2.36E+00 4.06E+00 U WS 02 279560004 6/6/2011 Zn-65 -4.29E-01 1.85E+00 5.09E+00 U WS 02 279560004 6/6/2011 Zr-95 9.21E-01 1.31E+00 4.45E+00 U WS 02 290710004 11/17/2011 Ac-228 8.96E+00 3.81E+00 5.09E+00 UI WS 02 290710004 11/17/2011 Ag-108m -9.59E-02 3.96E-01 1.32E+00 U WS 02 290710004 11/17/2011 Ag-il0m -5.32E-01 4.55E-01 1.39E+00 U WS 02 290710004 11/17/2011 Ba-140 -9.92E-01 8.04E-6)1 2.34E+00 U WS 02 290710004 11/17/2011 Be-7 3.91E-01 4.07E+00 1.37E+01 U WS 02 290710004 11/17/2011 Bi-214 1.99E+00 1.81E+00 3.78E+00 U WS 02 290710004 11/17/2011 Ce-141 -4.28E-01 9.94E-01 2.75E+00 U WS 02 290710004 11/17/2011 Ce-144 -3.74E-01 3.03E+00 1.01E+01 U WS 02 290710004 11/17/2011 Co-57 -5.55E-02 4.02E-01 1.35E+00 U WS 02 290710004 11/17/2011 Co-58 -1.44E-01 4.47E-01 1.43E+00 U WS 02 290710004 11/17/2011 Co-60 1.96E-01 7.23E-01 1.77E+00 U WS 02 290710004 11/17/2011 Cr-51 7.84E-01 4.69E+00 1.52E+01 U WS 02 290710004 11/17/2011 Cs-134 9.04E-01 5.97E-01 1.90E+00 U WS 02 290710004 11/17/2011 Cs-137 1.06E+00 5.37E-01 1.66E+00 U WS 02 290710004 11/17/2011 Fe-59 -3.52E-03 9.92E-01 3.31E+00 U WS 02 290710004 11/17/2011 H-3 -1.14E+02 1.36E+02 4.65E+02 U WS 02 290710004 11/17/2011 1-131 -1.78E+00 1.55E+00 3.03E+00 U WS 02 290710004 11/17/2011 K-40 1.53E+02 1.40E+01 1.47E+01 WS 02 290710004 11/17/2011 La-140 -9.92E-01 8.03E-01 2.34E+00 U WS 02 290710004 11/17/2011 Mn-54 3.46E-01 4.61E-01 1.50E+00 U WS 02 290710004 11/17/2011 Nb-95 -7.13E-01 7.67E-01 1.56E+00 U WS 02 290710004 11/17/2011 Pb-212 2.42E+00 1.55E+00 2.89E+00 U WS 02 290710004 11/17/2011 Pb-214 2.59E+00 1.91E+00 3.76E+00 U WS 02 290710004 11/17/2011 Ru-103 3.71E-01 4.95E-01 1.65E+00 U WS 02 290710004 11/17/2011 Ru-106 -1.19E+01 6.64E+00 1.33E+01 U WS 02 290710004 11/17/2011 Sb-124 -9.62E-01+ 1.22E+00 3.75E+00 U WS 02 290710004 11/17/2011 Sb-125 -2.94E-01 1.21E+00 4.03E+00 U WS 02 290710004 11/17/2011 Se-75 -9.99E-01 6.74E-01 2.01E+00 U WS 02 290710004 11/17/2011 Th-228 2.42E+00 1.55E+00 2.89E+00 U WS 02 290710004 11/17/2011 Zn-65 -2.65E+00 1.15E+00 2.90E+00 U WS 02 290710004 11/17/2011 Zr-95 3.66E-02 8.25E-01 2.69E+00 U WS 51 271331002 1/25/2011 Ac-228 5.94E+00 2.97E+00 9.08E+00 U WS 51 271331002 1/25/2011 Ag-108m 3.90E-01 5.32E-01 1.79E+00 U WS 51 271331002 1/25/2011 Ag-110m -5.66E-01 6.30E-01 1.97E+00 U 238

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I WS WS 51 51 271331002 271331002 1/25/2011 1/25/2011 Ba-140 Be-7

-1.49E+00

-6.02E+00 1.13E+00 5.38E+00 3.26E+00 1.68E+01 U U U WS 51 271331002 1/25/2011 Bi-214 6.01E+00 2.34E+00 4.99E+00 UI WS WS 51 51 271331002 271331002 1/25/2011 1/25/2011 Ce-141 Ce-144 1.18E-01 3.64E+00 1.12E+00 4.15E+00 3.60E+00 1.37E+01 U

U I

WS 51 271331002 1/25/2011 Co-57 -8.15E-01 5.39E-01 1.63E+00 U WS WS WS 51 51 51 271331002 271331002 271331002 1/25/2011 1/25/2011 1/25/2011 Co-58 Co-60 Cr-51

-5.21E-02 2.93E-01

-6.16E+00 6.62E-01 7.30E-01 6.47E+00 2.15E+00 2.44E+00 1.99E+01 U

U U

U WS WS WS 51 51 51 271331002 271331002 271331002 1/25/2011 1/25/2011 1/25/2011 Cs-134 Cs-137 Fe-59 1.13E+00 3.27E-01 1.58E+00 7.83E-01 6.77E-01 1.40E+00 2.53E+00 2.25E+00 4.72E+00 U

U U

I WS 51 271331002 1/25/2011 1-131 -2.36E+00 1.43E+00 4.04E+00 U WS WS 51 51 271331002 271331002 1/25/2011 1/25/2011 K-40 La- 140 3.47E+02

-1.49E+00 2.37E+01 1.13E+00 1.96E+01 3.26E+00 I

WS 51 271331002 1/25/2011 Mn-54 -1.42E+00 7.29E-01 1.94E+00 WS 51 271331002 1/25/2011 Nb-95 1.17E+00 7.36E-01 2.35E+00 WS 51 271331002 1/25/2011 Pb-212 2.40E+00 1.86E+00 4.07E+00 WS 51 271331002 1/25/2011 Pb-214 5.66E+00 1.98E+00 5.09E+00 WS 51 271331002 1/25/2011 Ru-103 -6.68E-01 6.98E-01 2.2 1E+00 WS 51 271331002 1/25/2011 Ru-106 -2.15E+00 5.64E+00 1.84E+01 WS 51 271331002 1/25/2011 Sb-124 2.87E+00 1.78E+00 5.84E+00 WS 51 271331002 1/25/2011 Sb-125 -1.48E+00 1.64E+00 5.28E+00 WS 51 271331002 1/25/2011 Se-75 -1.66E+00 9.13E-01 2.57E+00 WS 51 271331002 1/25/2011 Th-228 2.40E+00 1.86E+00 4.07E+00 WS 51 271331002 1/25/2011 Zn-65 -1.16E-01 1.44E+00 4.82E+00 WS 51 271331002 1/25/2011 Zr-95 2.16E-01 1.20E+00 3.93E+00 WS 51 273396002 2/24/2011 Ac-228 3.45E+00 4.84E+00 8.5 1E+00 WS 51 273396002 2/24/2011 Ag-108m 6.56E-02 5.17E-01 1.67E+00 WS 51 273396002 2/24/2011 Ag-i 10m -3.50E-01 5.81E-01 1.87E+00 WS 51 273396002 2/24/2011 Ba-140 6.31E-01 1.01E+00 3.45E+00 WS 51 273396002 2/24/2011 Be-7 -4.89E+00 8.55E+00 2.68E+01 WS 51 273396002 2/24/2011 Bi-214 -2.52E+00 2.10E+00 4.30E+00 WS 51 273396002 2/24/2011 Ce-141 5.04E+00 2.92E+00 7.87E+00 WS 51 273396002 2/24/2011 Ce-144 -8.66E+00 4.73E+00 1.33E+01 WS 51 273396002 2/24/2011 Co-57 2.08E-01 5.55E-01 1.80E+00 WS 51 273396002 2/24/2011 Co-58 8.88E-01 8.28E-01 2.70E+00 WS 51 273396002 2/24/2011 Co-60 2.84E-01 6.05E-01 2.01E+00 WS 51 273396002 2/24/2011 Cr-51 -5.59E-01 1.51E+01 4.98E+01 WS 51 273396002 2/24/2011 Cs-134 1.11 E+00 7.53E-01 2.40E+00 WS 51 273396002 2/24/2011 Cs-137 -5.86E-01 5.80E-01 1.81E+00 WS 51 273396002 2/24/2011 Fe-59 -2.18E+00 2.38E+00 7.5 1E+00 WS 51 273396002 2/24/2011 1-131 1.54E+00 1.46E+00 4.75E+00 WS 51 273396002 2/24/2011 K-40 3.45E+02 2.16E+01 1.80E+01 WS 51 273396002 2/24/2011 La-140 6.3 1E-01 1.01E+00 3.45E+00 U WS 51 273396002 2/24/2011 Mn-54 -2.23E-01 6.06E-0 I 1.94E+00 U wS 51 273396002 2/24/2011 Nb-95 1.22E+00 9.39E-01 3.03E+00 U WS WS 51 51 273396002 273396002 2/24/2011 2/24/2011 Pb-212 Pb-214

-3.32E+00

-1 .57E+00 1.94E+00 2.37E+00 4.1OE+00 4.59E+00 3.87E+00 U

U U

I WS WS 51 51 273396002 273396002 2/24/2011 2/24/2011 Ru-103 Ru-106

-2.30E+00

-5.48E+00 1.49E+00 5.50E+00 1.74E+01 U I 239 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WS 51 273396002 2/24/2011 Sb-124 -3.91E-01 2.05E+00 6.75E+00 WS 51 273396002 2/24/2011 Sb-125 -1.11E+00 1.63E+00 5.12E+00 273396002 2/24/2011 Se-75 -5.22E-01 1.02E+00 3.33E+00 wS 51 WS 51 273396002 2/24/2011 Th-228 -3.32E+00 1.94E+00 4.1OE+00 WS 51 273396002 2/24/2011 Zn-65 -4.18E+00 1.74E+00 4.36E+00 wS 51 273396002 2/24/2011 Zr-95 4.76E+00 1.95E+00 5.64E+00 wS 51 274498002 3/22/2011 Ac-228 5.84E+00 2.53E+00 7.40E+00 WS 51 274498002 3/22/2011 Ag-108m 1.78E-01 4.99E-01 1.61E+00 WS 51 274498002 3/22/2011 Ag-il0m -2.47E-01 4.94E-01 1.60E+00 WS 51 274498002 3/22/2011 Ba-140 8.27E-01 8.92E-01 2.94E+00 WS 51 274498002 3/22/2011 Be-7 1.22E+01 5.19E+00 1.55E+01 WS 51 274498002 3/22/2011 Bi-214 -3.82E+00 2.23E+00 4.04E+00 wS 51 274498002 3/22/2011 Ce-141 1.03E-01 9.11E-01 3.09E+00 WS 51 274498002 3/22/2011 Ce-144 2.59E+00 3.80E+00 1.20E+01 WS 51 274498002 3/22/2011 Co-57 -1.84E-02 4.70E-01 1.49E+00 WS 51 274498002 3/22/2011 Co-58 -4.56E-01 5.43E-01 1.69E+00 WS 51 274498002 3/22/2011 Co-60 -6.80E-02 5.57E-01 1.83E+00 WS 51 274498002 3/22/2011 Cr-51 2.82E+00 4.97E+00 1.63E+01 WS 51 274498002 3/22/2011 Cs-134 1.09E+00 6.96E-01 2.22E+00 WS 51 274498002 3/22/2011 Cs-137 -9.73E-02 5.3 1E-01 1.75E+00 WS 51 274498002 3/22/2011 Fe-59 9.93E-01 1.1OE+00 3.70E+00 WS 51 274498002 3/22/2011 1-131 1.60E+00 9.91E-01 3.08E+00 WS 51 274498002 3/22/2011 K-40 2.74E+02 2.06E+0 1 1.68E+01 WS 51 274498002 3/22/2011 La-140 8.27E-01 8.91E-01 2.94E+00 WS 51 274498002 3/22/2011 Mn-54 -2.57E-01 5.29E-01 1.69E+00 wS 51 274498002 3/22/2011 Nb-95 1.19E+00 6.13E-01 1.89E+00 WS 51 274498002 3/22/2011 Pb-212 -2.73E+00 2.14E+00 4.12E+00 WS 51 274498002 3/22/2011 Pb-214 1.17E+00 1.28E+00 4.15E+00 WS 51 274498002 3/22/2011 Ru-103 1.26E+00 6.20E-01 1.91E+00 WS 51 274498002 3/22/2011 Ru-106 5.12E+00 4.98E+00 1.64E+01 WS 51 274498002 3/22/2011 Sb-124 -1.49E+00 1.30E+00 3.8 1E+00 WS 51 274498002 3/22/2011 Sb-125 -1.73E+00 1.51E+00 4.56E+00 WS 51 274498002 3/22/2011 Se-75 2.52E-02 7.21 E-01 2.38E+00 WS 51 274498002 3/22/2011 Th-228 -2.73E+00 2.14E+00 4.12E+00 WS 51 274498002 3/22/2011 Zn-65 -8.47E-01 1.1 7E+00 3.78E+00 WS 51 274498002 3/22/2011 Zr-95 6.72E-01 9.37E-01 3.09E+00 WS 51 278395002 3/22/2011 H-3 2.04E+02 1.59E+02 4.87E+02 wS 51 277210002 4/19/2011 Ac-228 1.81 E+00 4.05E+00 9.8 1E+00 WS 51 277210002 4/19/2011 Ag-108m 2.42E-01 5.94E-01 1.93E+00 WS 51 277210002 4/19/2011 Ag-110m 3.54E-01 6.58E-01 2.19E+00 WS 51 277210002 4/19/2011 Ba-140 -1.08E-01 1.83E+00 6.11E+00 WS 51 277210002 4/19/2011 Be-7 -4.14E+00 6.83E+00 2.13E+01 WS 51 277210002 4/19/2011 Bi-214 2.06E+00 2.66E+00 4.23E+00 WS 51 277210002 4/19/2011 Ce-141 8.12E-01 1.59E+00 4.85E+00 WS 51 277210002 4/19/2011 Ce-144 -1.44E+00 4.61E+00 1.47E+01 WS 51 277210002 4/19/2011 Co-5 7 5.42E-01 6.17E-01 1.98E+00 WS 51 277210002 4/19/2011 Co-58 -2.40E-0 I 6.93E-01 2.22E+00 WS 51 277210002 4/19/2011 Co-60 -5.77E-01 6.74E-01 2.07E+00 WS 51 277210002 4/19/2011 Cr-51 9.82E+00 8.69E+00 2.82E+01 WS 51 277210002 4/19/2011 Cs-134 5.41E-01 7.95E-01 2.62E+00 WS 51 277210002 4/19/2011 Cs-137 -5.54E-01 7.17E-01 2.28E+00 240

Seabrook REMP Summary of 2011 Data I

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I WS WS 277210002 277210002 4/19/2011 4/19/2011 Fe-59 1-131 5.52E+00

-3.92E+00 2.07E+00 2.95E+00 5.97E+00 8.85E+00 U

U I

WS 277210002 4/19/2011 K-40 1.92E+02 1.87E+01 2.17E+01 wS WS 277210002 277210002 4/19/2011 4/19/2011 La-140 Mn-54

-1.08E-01 5.90E-01 1.83E+00 6.54E-01 6.11E+00 2.14E+00 U

U I

WS 277210002 4/19/2011 Nb-95 1.27E-01 7.18E-01 2.36E+00 U WS WS WS 277210002 277210002 277210002 4/19/2011 4/19/2011 4/19/2011 Pb-212 Pb-214 Ru-103

-3.23E+00 1.06E-02

-1.45E+00 2.14E+00 2.75E+00 8.89E-01 4.60E+00 5.49E+00 2.65E+00 U

U U

I WS WS WS 277210002 277210002 277210002 4/19/2011 4/19/2011 4/19/2011 Ru-106 Sb-124 Sb-125

-5.52E-01

-8.42E-01

-2.74E+00 5.63E+00 1.89E+00 1.92E+00 1.87E+01 6.13E+00 5.60E+00 U

U U

I WS 277210002 4/19/2011 Se-75 1.03E+00 9.71E-01 3.19E+00 U WS WS 277210002 277210002 4/19/2011 4/19/2011 Th-228 Zn-65

-3.23E+00

-1.34E+00 2.14E+00 1.47E+00 4.60E+00 4.59E+00 U

U I

WS 277210002 4/19/2011 Zr-95 -1.40E-01 1.27E+00 4.15E+00 U WS WS WS 279560002 279560002 279560002 5/24/2011 5/24/2011 5/24/2011 Ac-228 Ag-108m Ag-110m

-7.93E+00 6.88E-01

-5.25E-01 4.16E+00 5.62E-01 6.14E-01 8.92E+00 1.82E+00 1.96E+00 U

U U

I WS WS WS 279560002 279560002 279560002 5/24/2011 5/24/2011 5/24/2011 Ba-140 Be-7 Bi-214 1.08E+00

-1.23E+00 6.29E+00 2.27E+00 9.65E+00 2.42E+00 7.5 i E+00 2.2 1E+01 4.20E+00 U

U X(1)

I WS 279560002 5/24/2011 Ce-141 -6.09E+00 2.55E+00 4.72E+00 U WS WS 279560002 279560002 5/24/2011 5/24/2011 Ce-144 Co-57

-2.42E+00 1.96E-01 4.22E+00 5.51E-01 1.36E+01 1.82E+00 2.50E+00 U

U U I WS 279560002 5/24/2011 Co-58 3.46E-02 7.59E-01 WS wS WS 279560002 279560002 279560002 5/24/2011 5/24/2011 5/24/2011 Co-60 Cr-51 Cs-134 2.18E-02 1.09E+01 5.07E-01 6.50E-01 8.87E+00 7.92E-01 2.15E+00 2.91E+01 2.64E+00 U

U U

I WS WS WS 279560002 279560002 279560002 5/24/2011 5/24/2011 5/24/2011 Cs-137 Fe-59 1-131

-7.54E-01 1.57E-01 2.44E+00 1.03E+00 1.75E+00 3.87E+00 2.24E+00 5.90E+00 1.29E+01 U

U U

I WS 279560002 5/24/2011 K-40 3.18E+02 2.45E+01 1.91E+01 WS WS 279560002 279560002 5/24/2011 5/24/2011 La-140 Mn-54 1.08E+00 9.94E-01 2.27E+00 6.93E-01 7.5 1E+00 2.25E+00 2.61E+00 U

U U

I WS 279560002 5/24/2011 Nb-95 5.73E-01 7.83E-01 WS WS WS 279560002 279560002 279560002 5/24/2011 5/24/2011 5/24/2011 Pb-212 Pb-214 Ru-103 5.68E+00 2.25E+00 4.91 E-01 2.49E+00 2.73E+00 8.35E-01 4.66E+00 5.27E+00 2.72E+00 U'

U U

I WS WS WS 279560002 279560002 279560002 5/24/2011 5/24/2011 5/24/2011 Ru-106 Sb- 124 Sb-125 2.59E+00

-1.07E+00 7.10E-01 5.53E+00 1.78E+00 1.66E+00 1.87E+01 5.48E+00 5.45E+00 U

U U

I WS 279560002 5/24/2011 Se-75 -1.65E-01 8.78E-01 2.95E+00 U WS WS 279560002 279560002 5/24/2011 5/24/2011 Th-228 TI-208 5.68E+00 5.3 1E+00 2.49E+00 1.1 7E+00 4.66E+00 2.OOE+00 4.65E+00 UI U

I WS 279560002 5/24/2011 Zn-65 -2.94E+00 1.64E+00 WS wS WS 279560002 281629002 281629002 5/24/2011 6/21/2011 6/21/2011 Zr-95 Ac-228 Ag-108m 5.70E-01

-3.11 E-0I

-6.74E-01 1.31E+00 4.07E+00 6.19E-01 4.36E+00 9.76E+00 1.89E+00 U

U U

I 2.03E+00 U WS WS 281629002 281629002 6/21/2011 6/21/2011 Ag-i 10m Ba-140

-1.19E+00 5.73E-01 7.02E-01 2.67E+00 8.95E+00 U I 241

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WS 281629002 6/21/2011 Be-7 -8.59E+00 7.70E+00 2.32E+01 U WS 281629002 6/21/2011 Bi-214 2.03E+00 2.85E+00 3.93E+00 U WS 281629002 6/21/2011 Ce-141 1.55E+00 1.66E+00 5.3 1E+00 U WS 281629002 6/21/2011 Ce-144 -3.48E+00 4.42E+00 1.40E+01 U WS 281629002 6/21/2011 Co-57 -3.55E-01 7.65E-01 1.92E+00 U WS 281629002 6/21/2011 Co-58 -6.49E-01 8.42E-01 2.63E+00 U WS 281629002 6/21/2011 Co-60 8.42E-01 7.26E-0 I 2.38E+00 U WS 281629002 6/21/2011 Cr-51 1.46E+00 8.98E+00 2.97E+01 U WS 281629002 6/21/2011 Cs-134 -4.31 E-01 9.36E-01 2.56E+00 U WS 281629002 6/21/2011 Cs-137 -7.05E-02 1.1 OE+00 2.30E+00 U WS 281629002 6/21/2011 Fe-59 1.01E+00 1.85E+00 6.20E+00 U WS 281629002 6/21/2011 1-131 6.50E+00 4.82E+00 1.54E+01 U DL*

WS 281629002 6/21/2011 K-40 3. 1OE+02 2.57E+01 2.23E+01 WS 281629002 6/21/2011 La-140 5.73E-01 2.67E+00 8.95E+00 WS 281629002 6/21/2011 Mn-54 7.73E-01 6.76E-01 2.19E+00 WS 281629002 6/21/2011 Nb-95 -6.1 8E-01 8.54E-01 2.69E+00 WS 281629002 6/21/2011 Pb-212 3.45E+00 2.23E+00 4.3 1E+00 WS 281629002 6/21/2011 Pb-214 -2.06E+00 2. 1OE+00 4.92E+00 WS 281629002 6/21/2011 Ru-103 -2.96E+00 1.31E+00 2.91E+00 WS 281629002 6/21/2011 Ru-106 3.24E+00 5.93E+00 1.98E+01 WS 281629002 6/21/2011 Sb-124 8.02E-01 1.80E+00 6.06E+00 WS 281629002 6/21/2011 Sb-125 -2.50E+00 1.91E+00 5.7 1E+00 WS 281629002 6/21/2011 Se-75 -4.18E-01 9.16E-01 3.03E+00 WS 281629002 6/21/2011 Th-228 3.45E+00 2.23E+00 4.3 1E+00 WS 281629002 6/21/2011 Zn-65 -6.92E+00 2.30E+00 4.65E+00 WS 281629002 6/21/2011 Zr-95 -4.15E-01 1.45E+00 4.68E+00 WS 284691002 6/21/2011 H-3 0.OOE+00 1.28E+02 4.19E+02 WS 282639002 7/18/2011 Ac-228 -2.54E+00 5.33E+00 1.21E+01 WS 282639002 7/18/2011 Ag- 108m 1.OIE-01 6.62E-01 2.15E+00 WS 282639002 7/18/2011 Ag-110m -1.78E+00 8.55E-01 2.26E+00 WS 282639002 7/18/2011 Ba-140 -1.09E+00 1.49E+00 4.49E+00 WS 282639002 7/18/2011 Be-7 4.86E+00 6.89E+00 2.24E+01 WS 282639002 7/18/2011 Bi-214 1.20E+00 3.28E+00 6.32E+00 WS 282639002 7/18/2011 Ce-141 -2.95E-01 1.30E+00 4.14E+00 WS 282639002 7/18/2011 Ce-144 3.14E+00 4.7 1E+00 1.44E+01 WS 282639002 7/18/2011 Co-57 -1.09E+00 6.53E-01 1.87E+00 WS 282639002 7/18/2011 Co-58 -1.13E+00 8.99E-01 2.66E+00 WS 282639002 7/18/2011 Co-60 3.66E-01 8.12E-01 2.73E+00 WS 282639002 7/18/2011 Cr-51 -2.20E+00 7.67E+00 2.50E+01 WS 282639002 7/18/2011 Cs-134 -3.20E-02 8.92E-01 2.92E+00 WS 282639002 7/18/2011 Cs-137 2.36E+00 9.75E-01 2.94E+00 WS 282639002 7/18/2011 Fe-59 2.65E-01 1.84E+00 6.2 1E+00 WS 282639002 7/18/2011 1-131 -9.36E-01 1.75E+00 5.59E+00 WS 282639002 7/18/2011 K-40 2.87E+02 2.74E+01 2.55E+01 WS 282639002 7/18/2011 La-140 -1.09E+00 1.48E+00 4.49E+00 WS 282639002 7/18/2011 Mn-54 5.35E-01 7.88E-01 2.62E+00 WS 282639002 7/18/2011 Nb-95 9.79E-01 8.24E-01 2.73E+00 WS 282639002 7/18/2011 Pb-212 -9.50E-01 2.11E+00 5. 1OE+00 WS 282639002 7/18/2011 Pb-214 1.24E+00 3.01E+00 6.09E+00 WS 282639002 7/18/2011 Ru-103 -1.63E-01 8.57E-01 2.72E+00 WS 282639002 7/18/2011 Ru-106 -1.12E+01 7.3 1E+00 2.14E+01 242

Seabrook REMP Summary of 2011 Data U

SAMPLE TYPE STATION LSN END DATE NUCLIDE CONC (pCi/kg)

STD.DEV.

(pCi/kg)

MDC (pCi/kg)

FLAGS I

WS WS WS 51 51 51 282639002 282639002 282639002 7/18/2011 7/18/2011 7/18/2011 Sb-124 Sb-125 Se-75 1.34E+00

-1.55E+00 4.47E-01 2.04E+00 2.06E+00 9.18E-01 6.8 1E+00 6.40E+00 3.07E+00 I

7/18/2011 -9.50E-01 2.11E+00 5.1OE+00 I

WS 51 282639002 Th-228 wS 51 282639002 7/18/2011 Zn-65 .-3.77E+00 2. 1OE+00 5.86E+00 WS 51 282639002 7/18/2011 Zr-95 2.91E+00 1.65E+00 5.30E+00 WS 51 284909002 8/24/2011 Ac-228 7.01E+00 5.07E+00 1.24E+01 WS WS WS 51 51 51 284909002 284909002 284909002 8/24/2011 8/24/2011 8/24/2011 Ag-108m Ag-110m Ba-140

-8.25E-01

-2.89E-01

-1.86E+00 6.61E-01 7.86E-01 1.65E+00 2.02E+00 2.48E+00 4.83E+00 I

WS wS WS 51 51 51 284909002 284909002 284909002 8/24/2011 8/24/2011 8/24/2011 Be-7 Bi-214 Ce-141 2.66E+00

-5.19E-02

-8.56E-01 6.47E+00 2.34E+00 1.15E+00 2.14E+01 6.2 1E+00 3.69E+00 I

WS 51 284909002 8/24/2011 Ce-144 -1.39E+00 3.93E+00 1.29E+01 WS wS 51 51 284909002 284909002 8/24/2011 8/24/2011 Co-57 Co-58

-9.16E-01 4.81E-01 2.02E-01 5.27E-01 7.76E-01 8.44E-01 1.55E+00 2.62E+00 2.85E+00 I

wS 51 284909002 8/24/2011 Co-60 wS WS WS 51 51 51 284909002 284909002 284909002 8/24/2011 8/24/2011 8/24/2011 Cr-51 Cs-134 Cs-137 1.62E+01

-9.01E-01 4.23E-01 7.5 1E+00 9.13E-01 8.88E-01 2.32E+01 2.85E+00 2.88E+00 I

WS wS wS 51 51 51 284909002 284909002 284909002 8/24/2011 8/24/2011 8/24/2011 Fe-59 1-131 K-40

-1.59E+00

-1.65E+00 2.78E+02 2.06E+00 1.78E+00 2.75E+01 6.37E+00 5.69E+00 2.38E+01 I

WS 51 284909002 8/24/2011 La-140 -1.86E+00 1.65E+00 4.83E+00 wS 51 284909002 8/24/2011 Mn-54 2.19E-01 8.07E-01 2.70E+00 WS 51 284909002 8/24/2011 Nb-95 4.90E-01 8.04E-0I 2.72E+00 WS 51 284909002 8/24/2011 Pb-212 5.29E-01 2.49E+00 4.87E+00 wS 51 284909002 8/24/2011 Pb-214 -3.57E-01 2.16E+00 5.73E+00 WS 51 284909002 8/24/2011 Ru-103 -1.54E+00 9.17E-01 2.59E+00 WS 51 284909002 8/24/2011 Ru-106 2.04E+00 7.18E+00 2.33E+01 WS 51 284909002 8/24/2011 Sb-124 2.20E-01 1.97E+00 6.5 1E+00 wS 51 284909002 8/24/2011 Sb-125 -1.21E+00 1.87E+00 6.OOE+00 WS 51 284909002 8/24/2011 Se-75 6.5 1E-01 9.14E-01 2.93E+00 wS 51 284909002 8/24/2011 Th-228 5.29E-01 2.49E+00 4.87E+00 WS 51 284909002 8/24/2011 Zn-65 1.05E+00 1.86E+00 6.12E+00 wS 51 284909002 8/24/2011 Zr-95 2.28E+00 1.66E+00 5.50E+00 WS 51. 285891002 9/12/2011 Ac-228 -3.87E+00 4.20E+00 9.3 1E+00 WS 51 285891002 9/12/2011 Ag-108m -4.62E-01 5.70E-01 1.84E+00 WS 51 285891002 9/12/2011 Ag-110m -5.01E-01 6.26E-01 1.96E+00 wS 51 285891002 9/12/2011 Ba-140 -5.75E-01 1.27E+00 4.13E+00 WS 51 285891002 9/12/2011 Be-7 -5.03E+00 5.94E+00 1.90E+01 WS 51 285891002 9/12/2011 Bi-214 1.84E+00 2.95E+00 5.72E+00 ws 51 285891002 9/12/2011 Ce-141 3.59E-01 1.27E+00 4.24E+00 wS 51 285891002 9/12/2011 Ce-144 -2.40E+00 4.40E+00 1.45E+01 WS 51 285891002 9/12/2011 Co-57 3.73E-01 5.81E-0I 1.95E+00 WS 51 285891002 9/12/2011 Co-58 -2.27E+00 1.13E+00 2.16E+00 WS 51 285891002 9/12/2011 Co-60 1.50E-01 6.68E-01 2.20E+00 wS 51 285891002 9/12/2011 Cr-51 -4.59E+00 9.17E+00 2.30E+01 ws 51 285891002 9/12/2011 Cs-134 5.49E-01 8.05E-01 2.63E+00 WS 51 285891002 9/12/2011 Cs-137 6.29E-01 6.80E-01 2.23E+00 I

wS 51 285891002 9/12/2011 Fe-59 3.28E-01 1.43E+00 4.77E+00 243 I

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WS 51 285891002 9/12/2011 1-131 -1.37E+00 1.53E+00 4.96E+00 U WS 51 285891002 9/12/2011 K-40 3.48E+02 2.47E+01 1.97E+01 WS 51 285891002 9/12/2011 La-140 -5.75E-01 1.27E+00 4.13E+00 U WS 51 285891002 9/12/2011 Mn-54 -6.02E-01 6.90E-01 2.22E+00 U WS 51 285891002 9/12/2011 Nb-95 4.05E-01 6.90E-01 2.26E+00 U WS 51 285891002 9/12/2011 Pb-212 4.36E-01 2.23E+00 4.82E+00 U wS 51 285891002 9/12/2011 Pb-214 9.26E+00 3.92E+00 5.23E+00 UI WS 51 285891002 9/12/2011 Ru-103 5.47E-01 7.68E-0 1 2.56E+00 U WS 51 285891002 9/12/2011 Ru-106 1.17E+01 6.79E+00 2.14E+01 U wS 51 285891002 9/12/2011 Sb-124 -4.06E-0 1 1.58E+00 5.17E+00 U WS 51 285891002 9/12/2011 Sb-125 -2.55E+00 1.86E+00 5.71 E+00 U wS 51 285891002 9/12/2011 Se-75 1.19E+00 9.36E-01 2.98E+00 U WS 51 285891002 9/12/2011 Th-228 4.36E-01 2.23E+00 4.82E+00 U WS 51 285891002 9/12/2011 Zn-65 -2.09E+00 1.51E+00 4.45E+00 U WS 51 285891002 9/12/2011 Zr-95 2.21E-01 1.21E+00 3.93E+00 U WS 51 286617002 9/21/2011 Ac-228 1.45E+00 2.99E+00 8.89E+00 U WS 51 286617002 9/21/2011 Ag-108m -9.40E-02 5.57E-01 1.81E+00 U WS 51 286617002 9/21/2011 Ag-110m -6.27E-01 6.OOE-01 1.90E+00 U WS 51 286617002 9/21/2011 Ba-140 -1.34E+00 1.16E+00 3.44E+00 U WS 51 286617002 9/21/2011 Be-7 -5.35E+00 5.60E+00 1.72E+01 U WS 51 286617002 9/21/2011 Bi-214 1.05E+01 3.75E+00 5.80E+00 U' WS 51 286617002 9/21/2011 Ce-141 -9.24E-01 1.63E+00 3.85E+00 U WS 51 286617002 9/21/2011 Ce-144 -3.53E+00 4.43E+00 1.38E+01 U WS 51 286617002 9/21/2011 Co-57 -1.03E+00 6.02E-01 1.72E+00 U WS 51 286617002 9/21/2011 Co-58 1.03E-01 6.11E-01 2.04E+00 U WS 51 286617002 9/21/2011 Co-60 -1.25E+00 9.24E-01 2.15E+00 U WS 51 286617002 9/21/2011 Cr-51 6.96E-01 6.38E+00 2.13E+01 U WS 51 286617002 9/21/2011 Cs-134 7.18E-01 7.27E-01 2.44E+00 U WS 51 286617002 9/21/2011 Cs-137 -9.02E-01 1.17E+00 2.17E+00 U WS 51 286617002 9/21/2011 Fe-59 -8.17E-01 1.25E+00 3.91 E+00 U WS 51 286617002 9/21/2011 1-131 3.79E+00 1.73E+00 5.2 1E+00 U wS 51 286617002 9/21/2011 K-40 3.1 4E+02 2.49E+01 1.73E+01 WS 51 286617002 9/21/2011 La-140 -1.34E+00 1.16E+00 3.44E+00 U WS 51 286617002 9/21/2011 Mn-54 2.40E-01 6.03E-01 2.02E+00 U WS 51 286617002 9/21/2011 Nb-95 -1.87E-01 6.19E-01 2.04E+00 U WS 51 286617002 9/21/2011 Pb-212 3. 1OE+00 2.48E+00 4.86E+00 U WS 51 286617002 9/21/2011 Pb-214 7.22E+00 2.89E+00 5.36E+00 UI WS 51 286617002 9/21/2011 Ru-103 -6.08E-01 7.48E-01 2.32E+00 U WS 51 286617002 9/21/2011 Ru-106 1.1OE+00 5.49E+00 1.77E+01 U WS 51 286617002 9/21/2011 Sb-124 -8.65E-01 1.44E+00 4.52E+00 U WS 51 286617002 9/21/2011 Sb-125 9.90E-01 1.72E+00 5.66E+00 U WS 51 286617002 9/21/2011 Se-75 3.96E-01 8.38E-01 2.82E+00 U WS 51 286617002 9/21/2011 Th-228 3.1OE+00 2.48E+00 4.86E+00 U WS 51 286617002 9/21/2011 Zn-65 -1.01E+00 1.46E+00 4.54E+00 U WS 51 286617002 9/21/2011 Zr-95 3.12E-01 9.78E-01 3.30E+00 U WS 51 290821002 9/21/2011 H-3 3.09E+02 1.88E+02 5.64E+02 U WS 51 289163002 10/26/2011 Ac-228 -2.82E+00 4.62E+00 1.17E+01 U WS 51 289163002 10/26/2011 Ag-108m 3.73E-01 6.73E-01 2.18E+00 U WS 51 289163002 10/26/2011 Ag-il0m -4.09E-01 6.98E-01 2.22E+00 U WS 51 289163002 10/26/2011 Ba-140 -6.53E-01 1.26E+00 4.04E+00 U WS 51 289163002 10/26/2011 Be-7 6.93E-02 6.27E+00 2.11 E+0 I U 244

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WS 51 289163002 10/26/2011 Bi-214 9.17E+00 3.02E+00 5.01E+00 X(I)

WS 51 289163002 10/26/2011 Ce-141 -3.23E+00 2.26E+00 5.01E+00 U WS 51 289163002 10/26/2011 Ce-144 -9.71E+00 6.13E+00 1.74E+01 U WS 51 289163002 10/26/2011 Co-57 -4.33E-01 7.56E-01 2.37E+00 U WS 51 289163002 10/26/2011 Co-58 5.57E-01 7.67E-01 2.52E+00 U WS 51 289163002 10/26/2011 Co-60 4.72E-01 8.37E-01 2.78E+00 U WS 51 289163002 10/26/2011 Cr-51 -I.11E-01 7.55E+00 2.46E+01 U WS 51 289163002 10/26/2011 Cs-134 -3.17E-01 9.18E-01 2.92E+00 U WS 51 289163002 10/26/2011 Cs-137 6.12E-01 7.73E-01 2.57E+00 U WS 51 289163002 10/26/2011 Fe-59 -2.33E+00 1.71E+00 5.OOE+00 U WS 51 289163002 10/26/2011 1-131 -1.77E+00 1.55E+00 4.67E+00 U WS 51 289163002 10/26/2011 K-40 2.95E+02 2.74E+01 2.61E+01 WS 51 289163002 10/26/2011 La-140 -6.53E-01 1.26E+00 4.04E+00 U WS 51 289163002 10/26/2011 Mn-54 -4.29E-01 7.04E-01 2.19E+00 U WS 51 289163002 10/26/2011 Nb-95 9.37E-01 8.03E-01 2.63E+00 U WS 51 289163002 10/26/2011 Pb-212 1.51E+00 2.94E+00 5.11E+00 U WS 51 289163002 10/26/2011 Pb-214 1.03E+00 3.OOE+00 6.79E+00 U WS 51 289163002 10/26/2011 Ru-103 -2.26E-03 7.91E-01 2.65E+00 U WS 51 289163002 10/26/2011 Ru-106 -6.43E-01 6.77E+00 2.23E+01 U WS 51 289163002 10/26/2011 Sb-124 -1.33E+00 1.83E+00 5.70E+00 U WS 51 289163002 10/26/2011 Sb-125 -3.37E+00 2.17E+00 6.11E+00 U WS 51 289163002 10/26/2011 Se-75 -1.22E+00 1.07E+00 3.31E+00 U WS 51 289163002 10/26/2011 Th 228 1.51E+00 2.94E+00 5.11E+00 U WS 51 289163002 10/26/2011 Zn-65 -4.47E+00 2.09E+00 5.31E+00 U WS 51 289163002 10/26/2011 Zr-95 -1.07E+00 1.40E+00 4.33E+00 U WS 51 290710002 11/17/2011 Ac-228 -4.27E+00 3.52E+00 7.89E+00 U WS 51 290710002 11/17/2011 Ag-108m -4.08E-01 5.00E-01 1.54E+00 U WS 51 290710002 11/17/2011 Ag-110m -9.87E-01 5.38E-01 1.51E+00 U WS 51 290710002 11/17/2011 Ba-140 8.18E-01 9.82E-01 3.31E+00 U WS 51 290710002 11/17/2011 Be-7 2.22E+00 4.37E+00 1.47E+01 U WS 51 290710002 11/17/2011 Bi-214 -1.79E+00 2.13E+00 4.20E+00 U WS 51 290710002 11/17/2011 Ce-141 -2.32E+00 1.71E+00 3.45E+00 U WS 51 290710002 11/17/2011 Ce-144 -7.10E-01 3.88E+00 1.23E+01 U WS 51 290710002 11/17/2011 Co-57 -2.59E-01 5.14E-01 1.62E+00 U WS 51 290710002 11/17/2011 Co-58 -4.82E-02 5.58E-01 1.80E+00 U WS 51 290710002 11/17/2011 Co-60 -2.22E-02 5.89E-01 1.91E+00 U WS 51 290710002 11/17/2011 Cr-51 -1.48E+00 5.40E+00 1.75E+01 U WS 51 290710002 11/17/2011 Cs-134 5.25E-01 6.47E-01 2.11E+00 U WS 51 290710002 11/17/2011 Cs-137 5.29E-01 5.43E-01 1.79E+00 U WS 51 290710002 11/17/2011 Fe-59 1.20E+00 1.22E+00 4.04E+00 U WS 51 290710002 11/17/2011 1-131 2.26E+00 1.21E+00 3.66E+00 U WS 51 290710002 11/17/2011 K-40 3.34E+02 2.17E+01 1.61E+01 WS 51 290710002 11/17/2011 La-140 8.18E-01 9.81E-01 3.31E+00 U WS 51 290710002 11/17/2011 Mn-54 -4.40E-01 5.41E-01 1.67E+00 U WS 51 290710002 11/17/2011 Nb-95 1.03E+00 6.34E-01 1.99E+00 U WS 51 290710002 11/17/2011 Pb-212 -3.73E+00 2.51E+00 5.02E+00 U WS 51 290710002 11/17/2011 Pb-214 2.81E+00 2.44E+00 4.33E+00 U WS 51 290710002 11/17/2011 Ru-103 -1.82E-01 5.80E-01 1.93E+00 U WS 51 290710002 11/17/2011 Ru-106 6.19E+00 5.08E+00 1.66E+01 U WS 51 290710002 11/17/2011 Sb-124 2.61E-01 1.29E+00 4.32E+00 U WS 51 290710002 11/17/2011 Sb-125 3.62E+00 1.69E+00 4.95E+00 U 245

Seabrook REMP Summary of 2011 Data SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg)

WS 290710002 11/17/2011 Se-75 4.94E-03 7.32E-01 2.42E+00 WS 290710002 11/17/2011 Th-228 -3.73E+00 2.51E+00 5.02E+00 WS 290710002 11/17/2011 Zn-65 1.41E+00 1.27E+00 4.20E+00 WS 290710002 11/17/2011 Zr-95 -1.48E+00 1.02E+00 2.98E+00 WS 292310002 12/12/2011 Ac-228 6.27E+00 4.20E+00 7.56E+00 WS 292310002 12/12/2011 Ag-108m 2.07E-01 4.75E-01 1.57E+00 WS 292310002 12/12/2011 Ag-110m 4.12E-01 5.41 E-0 I 1.62E+00 WS 292310002 12/12/2011 Ba-140 5.49E-01 1.00E+00 3.37E+00 WS 292310002 12/12/2011 Be-7 1.58E+00 5.07E+00 1.67E+01 WS 292310002 12/12/2011 Bi-214 1.67E+00 2.39E+00 4.16E+00 WS 292310002 12/12/2011 Ce-141 1.56E+00 1.59E+00 3.36E+00 WS 292310002 12/12/2011 Ce-144 -2.82E+00 3.69E+00 1.17E+01 WS 292310002 12/12/2011 Co-57 -3.45E-01 4.80E-01 1.54E+00 WS 292310002 12/12/2011 Co-58 -3.3 1E-02 5.59E-01 1.86E+00 WS 292310002 12/12/2011 Co-60 1.11 E-02 5.61E-01 1.88E+00 WS 292310002 12/12/2011 Cr-51 2.92E+00 5.50E+00 1.85E+01 WS 292310002 12/12/2011 Cs-134 -3.17E-01 6.35E-01 2.07E+00 WS 292310002 12/12/2011 Cs-137 2.39E-01 1.11E+00 1.84E+00 WS 292310002 12/12/2011 Fe-59 -1.96E+00 1.26E+00 3.55E+00 WS 292310002 12/12/2011 1-131 5.87E-02 1.32E+00 4.39E+00 WS 292310002 12/12/2011 K-40 2.56E+02 2.06E+01 1.77E+01 WS 292310002 12/12/2011 La-140 5.49E-01 1.00E+00 3.37E+00 WS 292310002 12/12/2011 Mn-54 -1.26E-01 4.97E-01 1.63E+00 WS 292310002 12/12/2011 Nb-95 -1.16E+00 7.87E-01 1.81E+00 WS 292310002 12/12/2011 Pb-212 1.11E+00 2.11E+00 3.82E+00 WS 292310002 12/12/2011 Pb-214 -1.64E+00 1.91E+00 4.34E+00 WS 292310002 12/12/2011 Ru-103 - 1.19E+00 6.76E-0 I 1.89E+00 WS 292310002 12/12/2011 Ru- 106 3.17E+00 4.90E+00 1.59E+01 WS 292310002 12/12/2011 Sb-124 -3.23E-01 1.24E+00 4.02E+00 WS 292310002 12/12/2011 Sb-125 1.71E+00 1.48E+00 4.83E+00 WS 292310002 12/12/2011 Se-75 4.42E-01 7.06E-0 1 2.39E+00 WS 292310002 12/12/2011 Th-228 1.11E+00 2.11E+00 3.82E+00 WS 292310002 12/12/2011 Zn-65 -2.13E+00 1.64E+00 3.89E+00 WS 292310002 12/12/2011 Zr-95 -5.33E-01 1.03E+00 3.37E+00 WS 295628002 12/12/2011 H-3 2.89E+02 1.47E+02 4.30E+02 FLAGS A blank Flag field indicates that the measured activity is considered positive as it is greater than the MDC and has no other qualifiers noted.

U: Target isotope was analyzed for but not detected above the MDC and LLD.

Uh: Uncertain identification for gamma spectroscopy.

X: Lab-specific qualifier:

(1) False positive due to the presence of radon gas in the water.

M: Reported result is less than the LLD and greater than the MDC.

DL: Measured MDC is greater than the LLD.

DL*: Near miss of MDC being within round-off difference of being greater than the LLD.

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SBK-L-12096, Submittal of 2011 Annual Radiological Environmental Operating Report

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SBK-L-12096, Submittal of 2011 Annual Radiological Environmental Operating Report

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