RA-10-040, Submittal of Revised Annual Radiological Groundwater Protection Program Report for 2009

Submittal of Revised Annual Radiological Groundwater Protection Program Report for 2009

ML102950279
Person / Time
Site:	Oyster Creek
Issue date:	09/24/2010
From:	Massaro M Exelon Nuclear
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NEI 07-07, RA-10-040
Download: ML102950279 (88)

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"1 16 Ii~~Ii ) Rx "S F, eked River, N) ey3 N', Ic (1McO r pee .c N uclear NEI 07-07 RA-10-040 September 24, 2010 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 -0001 Oyster Creek Nuclear Generating Station Renewed Facility Operating License No. DPR-16 NRC Docket No. 50-219

Subject:

Revised Annual Radiological Groundwater Protection Program Report for 2009 Enclosed with this cover letter is a revised copy of the 2009 Annual Radiological Groundwater Protection Program Report that was submitted under cover letter RA-10-003 on April 30, 2010. Revision bars have been used to indicate where changes were made to the April report.If any further information or assistance is needed, please contact Calvin Taylor at 609-971-4031.

Sincerely, Michael J. Ma.saro Vice President

-Oyster Creek Nuclear Generating Station I

Enclosure:

Annual Radiological Groundwater Protection Program Report for 2009 (Revised July 2010)cc: Administrator, USNRC Region I USNRC Senior Project Manager, Oyster Creek USNRC Senior Resident Inspector, Oyster Creek Ed Everett, American Nuclear Insurers File No. 10040 kcD(,/

Docket No: 50-219 OYSTER CREEK GENERATING STATION UNIT 1 Annual Radiological Groundwater Protection Program Report 1 January Through 31 December 2009 Prepared By Teledyne Brown Engineering Environmental Services XJ Nuclear Oyster Creek Generating Station Forked River, NJ 08731 April 2010 Revised July 2010

.Table of Contents I. Sum m ary and Conclusions

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1 II. Introduction

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3 A. Objectives of the RG PP .................................................................................

4 B. Im plem entation of the Objectives

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5 C. Program Description

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5 D. Characteristics of Tritium (H-3) ........................................................................

6 III. Program Description

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7 A. Sam ple Analysis ...............................................................................................

7 B. Data Interpretation.

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7 C. Background Analysis .....................................................................................

8 IV. Results and Discussion

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10 A. Program Exceptions

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10 B. Groundwater Results ...................................................................................

11 C. Surface W ater Results .................................................................................

12 D. Summary of Results -Inter-laboratory Comparison Program .....................

12 E. Leaks, Spills, and Releases .............................

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12 F. Trends ...............................................................................................................

14 G .Investigations

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16 H. Actions Taken ..............................................................................................

16 V. References

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17 Appendices Appendix A Tables Table A-i: Figures Figure A-i: Figure A-2: Figure A-3: Appendix B Tables Table B-1.11: Table B-1.2: Table B-11.1: Table B-11.2: Location Designation Radiological Groundwater Protection Program -Sampling Locations, Oyster Creek Generating Station, 2009 Sampling Locations

-Kirkwood Formation Wells, Oyster Creek Generating Station, 2009 Sampling Locations

-Cohansey Formation Wells, Oyster Creek Generating Station, 2009 Sampling Locations

-Cape May Formation Wells and Surface Water, Oyster Creek Generating Station, 2009 Data Tables Concentrations of Tritium and Strontium in Groundwater Samples Collected in the Vicinity of Oyster Creek Generating Station, 2009.Concentrations of Gamma Emitters in Groundwater Samples Collected in the Vicinity of Oyster Creek Generating Station, 2009.Concentrations of Tritium and Strontium in Surface Water Samples Collected in the Vicinity of Oyster Creek Generating Station, 2009.Concentrations of Gamma Emitters in Surface Water Samples, Collected in the Vicinity of Oyster Creek Generating Station, 2009.ii Summary and Conclusions This report on the Radiological Groundwater Protection Program (RGPP)conducted for the Oyster Creek Generating Station (OCGS) by Exelon Generation Company LLC (Exelon) covers the period 01 January 2009 through 31 December 2009.In 2006, Exelon instituted a comprehensive program to evaluate the impact of station operations on groundwater and surface water in the vicinity of the Oyster Creek Generating Station. This evaluation involved numerous station personnel and contractor support personnel.

This report covers groundwater and surface water samples collected from the environment, both on and off station property in 2009. More than two thousand analyses were performed on more than one thousand samples from 36 locations.

There were three inadvertent releases of contaminated water into the groundwater during 2009.On February 9, 2009, less than 1 gallon of condensation from the B Isocondenser vent leaked onto the ground. The tritium in the condensed water was 21,900 pCi/I (0.0000000829 Ci). The contaminated soil was placed in drums for disposal.

No doses were calculated since the spill was contained and soil disposed.On April 13, 2009, in preparation for work inside the Emergency Service Water (ESW) vault, water was found inside the vault. As part of standard practices for water removal, the water was pumped into drums and sampled for gamma emitters, tritium, and pH. Sample analysis identified tritium levels at 102,000 pCi/I.Investigation determined that the release of tritiated water was caused by leaks in the 8-inch and 10-inch carbon steel Condensate System lines. The root cause investigation determined that the piping leaks developed due to a corrosion mechanism known as anodic dissolution.

Poor application of pipe coating left the buried pipes susceptible to this corrosion.

On August 24, 2009, an eight to ten gallon per minute leak was discovered in the condenser bay. The leak was coming from the turbine building west wall penetration housing the Condensate Transfer CH-5 line, the six-inch Condensate Transfer Main Header. Two through-wall holes of 1/16" and 1/4" were found in the pipe within the wall penetration.

A tritium concentration of 10,800,000 pCi/I was detected.

The root cause investigation determined the cause to be galvanic corrosion.

Gamma-emitting radionuclides attributable to licensed plant operations were not detected in any of the groundwater or surface water samples.In the case of tritium, Exelon specified that its laboratories achieve a lower limit of detection 100 times lower than the drinking water limit specified by the United States Environmental Protection Agency (USEPA) (200 pCi/I versus 20,000 pCi/I).Tritium was detected in groundwater samples. Tritium concentrations varied from < 200 to 4,160,000 pCi/l. The highest concentrations were close to the source of the underground leaks. The flow of the tritium was in the direction of the intake and discharge canals. The flow is not likely to impact offsite groundwater.

No detectable tritium (greater than the LLD) was found in surface water samples collected from onsite and offsite monitoring locations; however, an anomalous indication of tritium at a low concentration level (less than the federal drinking water limit) was present in an onsite sample of surface water collected from the intake structure.

This location was re-sampled and tritium was not detected in the confirmatory sample or in more than 200 previous or subsequent samples from this same location.Strontium-90 was not detected in any groundwater or surface water sample during 2009.In assessing all the data gathered for this report, it was concluded that the operation of the Oyster Creek Generating Station had no adverse radiological impact on the environment beyond the site boundaries.

Introduction The Oyster Creek Nuclear Generating Station consists of a single boiling water reactor (BWR) and turbine generator capable of producing 650 megawatts of electricity.

The Station operates under Nuclear Regulatory Commission (NRC)renewed facility operating license number DPR-1 6. Brackish water from Barnegat Bay is supplied by the circulating water system. The circulating water system is designed to supply a continuous flow of water from Barnegat Bay through the plant to remove the waste heat released by the power cycle in the Main Condenser.

The circulating water system comprised of the intake canal from Barnegat Bay to the plant, the Main Condenser Circulating Water System, the dilution plant, and the discharge canal to Barnegat Bay. The dilution plant portion of the system minimizes the adverse effects of hot discharge water on aquatic life in the discharge canal and Barnegat Bay to meet the conditions of the Oyster Creek New Jersey Pollutant Discharge Elimination system (NJPDES) Permit No. NJ005550.

Approximately 1 million gallons per minute of water are withdrawn from the intake canal for dilution and station use and returned to the discharge canal.The Station is located in the Atlantic Coastal Plain physiographic province.Topography in the region of the Station is a slightly undulating coastal plain having low relief. The land surface gradually rises from sea Level at Barnegat Bay, which is located east of the Station, to approximately 50 feet above mean sea level (AMSL) 2 miles inland. This region of the coastal plain has numerous tidal marshes and is incised by easterly flowing streams and creeks. Elevations at the Station property west of Route 9 range from approximately 0 to 15 feet AMSL immediately adjacent to the intake and discharge canals to slightly more than 30 feet AMSL in the northwest portion of the Station property.

The 132-acre developed portion of the Site located within the "horseshoe" formed by the intake and discharge canals west of Route 9 has an approximate average elevation of 20 feet AMSL. In the immediate vicinity of the intake and discharge canals, the Station property slopes steeply down to the canal. The average elevation of the surface water level in the intake and discharge canals is approximately 1 -foot AMSL. The remaining 637-acre portion of the Station located east of Route 9 is primarily vegetated and undeveloped.

The ground surface is relatively level except for the steep slopes at areas adjacent to the intake and discharge canals.The three shallowest stratigraphic units in the vicinity of the Oyster Creek area in descending order are the Cape May Formation, the Cohansey Formation, and the Kirkwood Formation.

Some of the Station structures are constructed to depths of approximately 50 feet below ground surface (bgs). Excavations were completed from grade, through the fill, Cape May Formation, Upper Clay, and into the Cohansey Formation during construction.

Consequently, the bottoms of some some Station structures are completed within the Cohansey Formation and some structures breach the Upper Clay.The Cape May Formation regionally has an average thickness of 40 feet and at OCGS, the Cape May is described as a light gray to tan, medium- to fine-grained sand, with trace to some silt and occasional coarse sand. It is generally poorly compacted.

The Cape May Formation varies from 0 to 21 feet in thickness based on historical boring logs. The variation principally is due to the varying amount of material excavated and replaced by fill during Station construction.

When present, the thickness of the Cape May generally ranges from 15 to 20 feet thick.The base of the Cape May generally is defined by the presence of a dark clay unit referred to as the Upper Clay unit. The Upper Clay is a stiff to hard, gray, plastic organic clay containing inclusions (also described as lenses or partings) of dense fine sand with trace to some organic silt. The deposits of fine sand.within the Upper Clay layer have high relative densities and occur as lenses or inclusions.

The Cohansey Formation is primarily composed a light-colored, fine- to very coarse-grained quartzose sand with lenses of silt and clay. Although most borings at the Station do not penetrate the entire Cohansey Formation, this formation appears to be approximately 60 to 80 feet thick at OCGS. A clay sequence, referred to at the Station as the "Lower Clay", marks the base of the Cohansey, which generally is present to approximately 90 to 100 feet bgs. The lower clay is a dense gray medium- to fine-grained sand containing trace to some organic silt and layers or inclusions of very stiff to hard gray organic clay. The thickness of the lower clay is estimated to be approximately 10 to 20 feet in the vicinity of OCGS.The Cohansey Formation is underlain by the Kirkwood Formation which consists of several stratigraphic units. The Kirkwood Formation is described as a medium-to fine-grained sand with trace silt. The thickness of this formation beneath the Station is unknown. The south domestic supply well terminates in the Kirkwood at a depth of 310 feet bgs. The Kirkwood thickness in Ocean County ranges from approximately 300 to 400 feet.This report covers those analyses performed by Teledyne Brown Engineering (TBE) and Environmental Inc. (Midwest Labs) on samples collected in 2009.A. Objectives of the RGPP The long-term objectives of the RGPP are as follows: 1. Identify suitable locations to monitor and evaluate potential impacts from station operations before significant radiological impact to the environment and potential drinking water sources.

2. Understand the local hydrogeologic regime in the vicinity of the station and maintain up-to-date knowledge of flow patterns on the surface and shallow subsurface.

3. Perform routine water sampling and radiological analysis of water from selected locations.

4. Report new leaks, spills, or other detections with potential radiological significance to stakeholders in a timely manner.5. Regularly assess analytical results to identify adverse trends.6. Take necessary corrective actions to protect groundwater resources.

B. Implementation of the Objectives The objectives identified have been implemented at the Oyster Creek Generating Station as discussed below: 1. Exelon and its consultant identified monitoring locations as described in the Phase 1 study. Phase 1 studies were conducted by Connestoga Rovers and Associates (CRA) and the results and conclusions were made available to state and federal regulators as well as the public in station specific reports.2. The Oyster Creek Generating Station report describes the local hydrogeologic regime. Periodically, the groundwater flow patterns are updated based on ongoing measurements.

3. The Oyster Creek Generating Station will continue to perform routine sampling and radiological analysis of water from selected locations.

4. The Oyster Creek Generating Station has implemented procedures to identify and report new leaks, spills, or other detections with potential radiological significance in a timely manner.5. The Oyster Creek Generating Station staff and independent consultants, including a hydrogeologist, assess analytical results on an ongoing basis to identify adverse trends.C. Program Description Samples for the OCGS site were collected for Exelon by on-site personnel and Normandeau Associates, Inc. This section describes the general collection methods used to obtain environmental samples for the OCGS RGPP in 2009. Sample locations can be found in Table A-i, Appendix A.1. Sample Collection Samples of water are collected, managed, transported and analyzed in accordance with approved procedures following EPA methods.Both groundwater and surface water are collected.

Sample locations, sample collection frequencies and analytical frequencies are controlled in accordance with approved station procedures.

Contractor and/or station personnel are trained in the collection, preservation management, and shipment of samples, as well as in documentation of sampling events.2. Sample Analysis Analytical laboratories are subject to internal quality assurance programs and industry cross-check programs, as well as nuclear industry audits. Station personnel review and evaluate all analytical data deliverables as data are received.Analytical data results are reviewed by both station personnel and independent consultants, including a hydrogeologist, for adverse trends or changes to hydrogeologic conditions.

D. Characteristics of Tritium (H-3)Tritium (chemical symbol H-3) is a radioactive isotope of hydrogen.

The most common form of tritium is tritium oxide, which is also called "tritiated water." The chemical properties of tritium are essentially those of ordinary hydrogen.Tritiated water behaves the same as ordinary water in both the environment and the body. Tritium can be taken into the body by drinking water, breathing air, eating food, or absorption through the skin. Once tritium enters the body, it disperses quickly and is uniformly distributed throughout the body. Tritium is excreted primarily through urine with a clearance rate characterized by an effective biological half-life of about 14 days. Approximately one month after ingestion, essentially all tritium is cleared.Tritium is produced naturally in the upper atmosphere when cosmic rays strike air molecules.

Tritium is also produced during nuclear weapons explosions, as a by-product in reactors producing electricity, and in special production reactors.

Also, tritium was released into the atmosphere from Chernobyl in 1986. Like normal water, tritiated water is colorless and odorless.

Tritiated water behaves chemically and physically like non-tritiated water in the subsurface, and therefore tritiated water will travel at the same velocity as the average groundwater velocity.Tritium has a half-life of approximately 12.3 years. It decays spontaneously to helium-3 (He-3). This radioactive decay releases a beta particle (18.6 keV low-energy electron).

The radioactive decay of tritium is the source of the health risk from exposure to tritium. Tritium is one of the least dangerous radionuclides because it emits very weak radiation and leaves the body relatively quickly. Since tritium is almost always found as water, it goes directly into soft tissues and organs. The associated dose to these tissues is generally uniform and is dependent on the water content of the specific tissue.Ill. Program Description A. Sample Analysis This section describes the general analytical methodologies used by TBE to analyze the environmental samples for radioactivity for the Oyster Creek Generating Station RGPP in 2009. The sampling frequencies are increased if activity is detected, (see Table A-i, Appendix A for specific frequencies at each sampling point).In order to achieve the stated objectives, the current program includes the following analyses: 1. Biennial concentrations of gamma emitters in groundwater and surface water.2. Biennial concentrations of strontium-90 in groundwater and surface water.3. Semi-annual concentrations of tritium in groundwater and surface water.B. Data Interpretation The radiological data collected prior to Oyster Creek Generating Station becoming operational, as well as background data from publicly available databases, were used as a baseline with which these operational data were compared.

For the purpose of this report, Oyster Creek Generating Station was considered operational at initial criticality.

Several factors were important in the interpretation of the data: 1 .Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) is defined as the smallest concentration of radioactive material in a sample that would yield a net count (above background) that would be detected with only a 5%probability of falsely concluding that a blank observation represents a "real" signal. The LLD is intended as a before the fact estimate of a system (including instrumentation, procedure and sample type)and not as an after the fact criterion for the presence of activity.

All analyses were designed to achieve the required OCGS detection capabilities for environmental sample analysis.The minimum detectable concentration (MDC) is defined above with the exception that the measurement is an after the fact estimate of the presence of activity.2. Laboratory Measurements Uncertainty The estimated uncertainty in measurement of tritium in environmental samples is frequently on the order of 50% of the measurement value.Statistically, the exact value of a measurement is expressed as a range with a stated level of confidence.

The convention is to report results with a 95% level of confidence.

The uncertainty comes from calibration standards, sample volume or weight measurements, sampling uncertainty and other factors. Exelon reports the uncertainty of a measurement created by statistical process (counting error) as well as all sources of error (Total Propagated Uncertainty or TPU). Each result has two values calculated.

Exelon reports the TPU by following the result with plus or minus (+/-) the estimated sample standard deviation, as TPU, that is obtained by propagating all sources of analytical uncertainty in measurements.

Analytical uncertainties are reported at the 95% confidence level in this report for reporting consistency with the AREOR.C. Background Analysis 1. Background Concentrations of Tritium The purpose of the following discussion is to summarize background measurements of tritium in various media performed by others.Additional detail may be found by consulting references.

a. Tritium Production Tritium is created in the environment from naturally occurring processes both cosmic and subterranean, as well as from anthropogenic (i.e., man-made) sources. In the upper atmosphere, "cosmogenic" tritium is produced from the bombardment of stable nuclides and combines with oxygen to form tritiated water, which will then enter the hydrologic cycle.Below ground, "lithogenic" tritium is produced by the bombardment of natural lithium present in crystalline rocks by neutrons produced by the radioactive decay of naturally abundant uranium and thorium. Lithogenic production of tritium is usually negligible compared to other sources due to the limited abundance of lithium in rock. The lithogenic tritium is introduced directly to groundwater.

A major anthropogenic source of tritium and strontium-90 comes from the former atmospheric testing of thermonuclear weapons. Levels of tritium in precipitation increased significantly during the 1950s and peaked in 1963 with the signing of the limited test ban treaty. The Canadian heavy water nuclear power reactors, other commercial power reactors, nuclear research and weapons production continue to influence tritium concentrations in the environment.

Also, tritium was released into the atmosphere from Chernobyl in 1986.b. Precipitation Data Precipitation samples are routinely collected at stations around the world for the analysis of tritium and other radionuclides.

One publicly available database that provides tritium concentrations in precipitation is the USEPA's RadNet database.

RadNet provides tritium precipitation concentration data for samples collected at stations throughout the U.S.from 1978 up to and including 1996. Tritium concentrations in precipitation in New Jersey from 1978 through 1996 have ranged from 600 pCi/I in 1979 to since 0 pCi/I in 1996, with an average of 185 pCi/I. Tritium concentrations in wells may still be above the 200 pCi/I detection limit from the external causes described above. Water from previous years and Water from previous years and decades is naturally captured in groundwater, so some well water sources today are affected by the surface water from the 1960s that was elevated in tritium.c. Surface Water Data Tritium concentrations are routinely measured in surface water bodies, including Oyster Creek and the Delaware River. New Jersey surface water data between 1978 and 1998 averaged 185 pCi/I.The USEPA RadNet surface water data typically has a reported 'Combined Standard Uncertainty' of 2 standard deviations.

This corresponds to a +/- 36 to +/-100 pCi/I confidence bound on each given reported measurement so that the typical surface water background data provided by RadNet may be subject to measurement uncertainty of up to 100 pCi/I.The radio-analytical laboratory counts tritium results to an Exelon specified LLD of 200 pCi/I with a typical uncertainty of +/-100 pCi/l. Therefore, sample results reported by TBE near this LLD can not be distinguished from natural background concentrations in surface water.IV. Results and Discussion A. Program Exceptions

1. Sample Anomalies Sample Type Location Collection Analysis Reason Code Date Groundwater W-53 09/02/09 Tritium The re-analysis result confirms with historical data.Groundwater W-51 12/29/09 Tritium The re-analysis result confirms with the original result.Surface SW-1 6/24/10 Tritium Water Sample location was re-sampled at < LLD.2. Missed Samples Sample Type Location Code Collection Date Analysis Groundwater North Domestic Well* Spring Tritium Groundwater W-2, W-20 Fall Tritium*It is suspected that the sample was collected but mislabeled as South Domestic Well due to two collection dates of 03/11/09 listed for South Domestic Well.3. LLDs Not Met Required LLDs for Surface and Ground Water Isotope H-3 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La- 140 l/liter 3000 15 15 30 15 30 15 30 15 15 18 60 15 Indicated LLDs for shorter lived radionuclides were not met due to a time lag between taking the samples and shipping the samples.Sample results reported as > 10,000 pCi/liter were not quantified, due to required LLD not being met.B. Groundwater Results Samples were collected from on-site locations in accordance with the station radiological groundwater protection program. As reported in CRA's 2006 Hydrogeologic Investigation Report, groundwater flow in the vicinity of the Torus Water Storage Tank and the Condensate Storage Tank is towards the intake and discharge canals.Tritium Samples from 32 locations were analyzed for tritium activity (Table B-1.1, Appendix B). Tritium was detected in 265 of 436 samples.The values ranged from < 200 to 4,160,000 pCi/I.Strontium Strontium-90 was not detected in any location sampled in 2009.(Table B-1.1, Appendix B)

Gamma Emitters No gamma emitting nuclides, other than naturally occurring potassium-40, were detected in any of the samples analyzed during 2009. (Table B-1.2, Appendix B)C. Surface Water Results Samples were collected from on-site locations in accordance with the station radiological groundwater protection program. Analytical results and anomalies are discussed below.Tritium Samples from four locations were analyzed for tritium activity (Table B-11.1, Appendix B). No detectable tritium (greater than the LLD)was found in any surface water samples collected from onsite and offsite monitoring locations, however, an anomalous indication of tritium at a low concentration level (less than the federal drinking water limit) was present in an onsite sample of surface water collected from the intake structure.

This location was re-sampled and tritium was not detected in the confirmatory sample or any other samples from this same location.

The sample was not collected for either the REMP, or the RGPP monitoring programs, and therefore is not included in the tabular results.Strontium Strontium-90 was not detected in any location sampled in 2009.(Table B-11.1, Appendix B)Gamma Emitters No gamma emitting nuclides, other than naturally occurring potassium-40, were detected in any of the samples analyzed.(Table B-11.2, Appendix B)D. Summary of Results -Inter-Laboratory Comparison Program Inter-Laboratory Comparison Program results for TBE and Environmental Inc. (Midwest Labs) are presented in the 2009 Oyster Creek AREOR.E. Leaks, Spills, and Releases C The OCGS records inadvertent releases of radioactive liquids in accordance with 10 CFR 50.75(g).

As part of the hydrogeologic investigation associated with Exelon's fleet wide assessment in 2006, a third party environmental engineering firm was contracted to evaluate historic releases, if any, and determine if a potential pathway to the environment existed. Those releases that were determined to have potentially impacted groundwater were subsequently investigated as part of the fleet wide assessment.

The 2006 hydrogeologic investigation determined that there were no radiological impacts to groundwater at the Oyster Creek Generating Station.There were three abnormal releases during 2009 resulting in an estimated total exposure of < 0.001 mRem to the most limiting member of the public.On February 9, 2009 less than 1 gallon of condensation from the B Isocondenser vent leaked onto the ground. The tritium in the condensed water was 21,900 pCi/I (0.0000000829 Ci). The contaminated soil was placed in drums for disposal.

No doses were calculated since the spill was contained and soil disposed.

The leak was secured.On April 13, 2009, in preparation for work inside the Emergency Service Water (ESW) vault, water was found inside the vault. As part of standard practices for water removal, the water was pumped into drums and sampled for gamma emitters, tritium, and pH. Sample analysis identified tritium levels at 102,000 pCi/I. Investigation determined that the release of tritiated water was caused by leaks in the 8-inch and 10-inch carbon steel Condensate System lines. The root cause investigation determined that the piping leaks developed due to a corrosion mechanism known as anodic dissolution.

Poor application of pipe coating left the buried pipes susceptible to this corrosion.

All leaks were repaired.A total of 6.39 Ci of tritium was calculated to have been released from this leak. This number was arrived at by using the calculated volume released (187,476 gallons), the maximum tritium concentration of the Condensate Storage Tank (CST) from that time period (9,000,000 pCi/I), and the typical value of canal dilution flow from the ODCM of 1,000,000 gpm. The maximum dose calculated from this release was 0.0000293 mRem for both total body and organ dose.On August 24, 2009 an eight to ten gallon per minute leak was discovered in the condenser bay. The leak was coming from the turbine building west wall penetration housing the Condensate Transfer CH-5 line, the six-inch Condensate Transfer Main Header. Two through-wall holes of 1/16" and 1/4" were found in the pipe within the wall penetration.

A tritium concentration of 10,100,000 pCi/I was detected.

The root cause investigation determined the cause to be galvanic corrosion.

The leak was repaired.

A total of 2.04 Ci of tritium was calculated to have been released from this leak to the discharge canal over a 7 day period. This number was arrived at by using the conservatively estimated released volume (50,000 gallons)and the maximum tritium concentration of the CST from that time period (10,800,000 pCi/I), using the canal dilution flow from the ODCM of 1,000,000 gpm. The maximum dose calculated from this release was 0.00000936 mRem for both total body and organ dose.F. Trends The two leaks both occurred on the west side of the turbine building.

The close proximity of the leaks allows the same wells to monitor the tritium plume. An independent hydrogeologist has determined that the flow of the tritium plume is toward the intake and discharge canals, and not into the deeper aquifers.

The flow is not likely to impact offsite groundwater.

The wells closest to the leaks have the highest tritium concentrations.

Monitoring Well MW-1 5K-1A 10,000,0OO 1,000,000 100.000 10,000 ,oooo -100 10 I .: : : 'Min -9,810 pCi/L Max -4,160,000 pCi/L Mean -413,819 pCi/L Monitoring Well W-50'10,000,000 1,000.000

-4 100,000 10,000 0. 1,000 100 10 1 \e I ISO IQ1 19 I0 11 IQ§I 1ý 41 4"e4`I l Min -186,000 pCi/L Max -2,650,000 pCi/L Mean -957,604 pCi/L Monitoring Well W-55 10,000,000 1,000,000 100,000 10,000" 1,000 100 10 1 I I I I I I I I oc~~v o K Min -22,900 pCi/L Max -1,550,000 pCi/L Mean -283,912 pCi/L Monitoring Well W-571-I0,000,000 1,000,000 100,000 10,000 r. 1,000 100 10 I I (I I I I I+ + ,+ N -Min -200,000 pCi/L Max -738,000 pCi/L Mean -380,476 pCi/L G. Investigations Conestoga Rovers and Associates performed an independent assessment of the tritium plume. The results of their assessment can be found in References 2 and 3.1. Actions Taken 1. Compensatory Actions The compensatory actions taken during 2009 were to add 8 additional monitoring wells to better characterize and monitor the tritium plume.2. Installation of Monitoring Wells The following wells were installed in 2009 to better delineate the high levels of tritium found in well MW-1 5K-1 A. Wells W-561 and W-571 were installed to characterize migration of tritium from the Cape May Formation to the Cohansey Formation.

Well Number Formation Well Installation Date W-50 Cape May 04/21/09 W-51 Cape May 04/22/09 W-52 Cape May 04/23/09 W-53 Cape May 04/24/09 W-54 Cape May 04/24/09 W-55 Cape May 05/26/09 W-561 Cohansey 09/14/09 W-571 Cohansey 09/03/09 3. Actions to Recover/Reverse Plumes Oyster Creek Generating Station is currently addressing the tritium in groundwater through the process of Monitored Natural Attenuation.

As a result of this process tritium concentrations continue to decline to less than detectable through decay, dilution and dispersion.

Oyster Creek will continue to evaluate alternative remediation strategies as additional information becomes available or in response to changing conditions.

V. References

1. Conestoga Rovers and Associates, Hydrogeologic Investigation Report, Fleetwide Assessment, Oyster Creek Generating Station, Forked River, New Jersey, Ref. No. 045136(18), September 2006 2. Conestoga Rovers and Associates, Site Investigation Report, Oyster Creek Generating Station, Forked River, New Jersey, Ref. No. 055875 (4), August 2009 3. Conestoga Rovers and Associates, Remedial Investigation Workplan, Oyster Creek Generating Station, Forked River, New Jersey, Ref. No. 055875 (5), October 2009 APPENDIX A LOCATION DESIGNATION

/I , /.N.o.; -. r .., ...v ~ JA --Il/iD I/ t! -':-., : i ,- 'E, " 2000 0 2000 Feat" Kikwood Formation Trhium Sampla Location" Kllwood Fomation Groundwater Elevation Monitoring Location 2009 RGPP Samping and Moniioring Locations Kjrkwood FomUation Wet F AC e ln CG rporaS ion Figure A-1 Oysler Crook Generating Slaion

"" 'i ... ".. , -.-V 2A, W.FigueA2 Oyt.Cee-_

rhigSao t;-2000 0 2000 Feet SCohansey Fom,.ation Tritum ,Sampl Location C obzansey Formation Groundwater Elevation Monitoring LocationRGPP Sampling andl Monitoring Locaiiors Coasey Formation WallI Exelon Corporation Figure A-2 Oyster Crook Generating Siation

+2000 0 2000 Feet" Surface Water and Cape May Formation Tritium Sample Location* Cape May Formation Goundwatar Elevation Monirtring Point.2009 RGPP Sampling and Monitoring Locations Cape May Formation Wall Exelon Corporation Oyster Creak Generating Station Figure A-3 t TABLE A-1: Radiological Groundwater Protection Program -Sampling Locations, Oyster Creek Generating Station, 2009 Collection and Required Sample No. Type Analysis Frequency Analysis S Tritium LW-3 Well B Gamma B Sr-90 S Tritium LW-4 Well B Gamma B Sr-90 M*, S Tritium MW-11-1A Well M*, B Gamma B Sr-90 M*, S Tritium MW-11i-2A Well M*, B Gamma B Sr-90 S Tritium MW-2 Well B Gamma B Sr-90 S Tritium MW-2A Well B Gamma B Sr-90 W*, S Tritium MW-15K-1A Well W-, B Gamma B Sr-90 S Tritium MW-16 Well B Gamma B Sr-90 S Tritium MW-16D Well B Gamma B Sr-90 S Tritium MW-20 Well B Gamma B Sr-90 S Tritium North Domestic Well Well B Gamma B Sr-90 S Tritium South Domestic Well Well B Gamma B Sr-90 S Tritium W-IA Well B Gamma B Sr-90 M*, S Tritium W-3 Well M*, B Gamma B Sr-90 M*, S Tritium W-4 Well M*, B Gamma B Sr-90 A-5 TABLE A-1: Radiological Groundwater Protection Program -Sampling Locations, Oyster Creek Generating Station, 2009 Collection and Required Sample No. Type Analysis Frequency Analysis WellM Tritium W-4K M* Gamma M*, S Tritium W-5 Well M*, B Gamma B Sr-90 M*, S Tritium W-6 Well M*, B Gamma B Sr-90 S Tritium W-7 Well B Gamma B Sr-90 S Tritium W-9 Well B Gamma B Sr-90 S Tritium W-12 Well B Gamma B Sr-90 S Tritium W-13 Well B Gamma B Sr-90 S Tritium W-14 Well B Gamma B Sr-90 S Tritium W-15 Well B Gamma B Sr-90 W-50 Well W* Tritium W* Gamma W-51 Well W* Tritium W* Gamma W-52 Well W* Tritium W* Gamma W-53 Well W* Tritium W* Gamma W-54 Well W* Tritium W* Gamma W-55 Well W* Tritium W* Gamma W-561 Well W* Tritium W* Gamma W-571 Well W* Tritium W* Gamma A-6 TABLE A-1: Radiological Groundwater Protection Program -Sampling Locations, Oyster Creek Generating Station, 2009 Collection and Required Sample No. Type Analysis Frequency Analysis Tritium Surface D*, S Gamma SW-1 Water D*, B Sr-90 B Surface D*, S Tritium SW-2 Water D*, B Gamma B Sr-90 Surface S Tritium SW-3 Water B Gamma B Sr-90 Main Condenser Surface Discharge Water D' Tritium D* Gamma* Frequency after April identification of tritium leak D = Daily W =Weekly M = Monthly S = Semi-annual B = Biennial Note that only sample points that are part of the program are listed in this table.A-7 APPENDIX B.-DATA TABLES TABLE B-1.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE LW-3 LW-3 LW-4 LW-4 MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-iA MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-IA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW- 15K-lA MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-iA MW-15K-1A MW-15K-iA COLLECTION DATE 03/12/09 10/02/09 03/12/09 10/02/09 03/10/09 04/16/09 04/20/09 04/29/09 05/01/09 05/06/09 05/13/09 05/20/09 05/28/09 06/02/09 06/09/09 06/16/09 06/23/09 07/01/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/1 2/09 08/19/09 08/25/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/14/09 09/16/09 09/18/09 09/21/09 09/23/09 09/25/09 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/29/09 11/04/09 11/11/09 H-3 SR-90< 192< 176< 189< 174< 192 2390000 +/- 160000 1290000 +/- 23600 4160000 +/- 339000 3940000 +/- 331000 3170000 +/- 294000 1790000 +/- 171000 837000 +/- 19700 500000 +/- 15400 377000 +/- 13500 62400 +/- 6100 80000 +/- 6760 71100 +/- 6420 47700 +/- 4800 53200 +/- 5780 61500 +/- 6750 67800 +/- 7360 115000 +/- 12000 118000 +/- 12400 26300 +/- 2610 31800 +/- 3210 40000 +/- 4030 46400 +/- 4660 70400 +/- 4040 128000 +/- 13000 90400 +/- 11200 61800 +/- 9630 88100 +/- 11000 108000 +/- 12300 284000 +/- 16800 131000 +/- 13500 123000 +/- 7960 50800 +/- 5130 78500 +/- 9190 43600 +/- 4240 53600 +/- 5690 63900 +/- 8420 55000 +/- 5740 52900 +/- 5670 35000 +/- 4880 51700 +/- 4640 51400 +/- 7640 9810 +/- 5160 14200 +/- 5520< 1.0< 0.8 B-1 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-iA MW-1 5K-1 A MW-15K-1A MW-15K-1A MW-16 MW-16 MW-16D MW-16D MW-il-iA MW-1iI-A MW-II-1A MW-1I-1A MW-1I-iA MW-II-iA MW-1I-1A MW-1I-iA MW-1I-iA MW-11-iA MW-Il-IA MW-1 I-1A MW-11-iA MW-1 I-2A MW- 11-2A MW-1 I-2A MW- 11-2A MW- 11-2A MW- 11-2A MW- 11-2A MW- 11-2A MW- 11-2A MW-1 I-2A MW-2 MW-2 MW-2 MW-20 MW-20 MW-20 MW-2A MW-2A W-50 W-50 W-50 W-50 W-50 W-50 W-50 COLLECTION DATE 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 03/10/09 10/01/09 03/10/09 09/30/09 03/10/09 04/16/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 03/10/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 10/01/09 10/29/09 11/24/09 12/30/09 03/10/09 03/10/09 03/10/09 03/10/09 03/10/09 03/10/09 03/10/09 09/30/09 04/21/09 04/29/09 05/06/09 05/13/09 05/20/09 05/28/09 06/02/09 H-3 SR-90 10600 +/- 5300 13700 +/- 5510 13900 t 5530 43900 +/- 7540 25000 +/- 2550 15100 +/- 1550 62100 +/- 6060< 178< 188< 186< 177< 192< 196< 190< 177 280 +/- 123< 0.9< 0.8< 152< 183< 177< 172< 178< 178< 155< 171< 194.< 192< 199< 166< 159< 168< 174< 183< 160.< 169< 192< 185 EIML QC < 149< 189< 181 EIML QC < 149< 186< 176 2350000 2140000 2650000 2090000 1880000 1420000 1600000< 0.6< 0.7< 0.7+/- 32100+/- 31600+/- 234000+/- 31300+/- 29600+/- 25800+/- 27400 B-2 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 NORTH DOMESTIC WELL SOUTH DOMESTIC WELL SOUTH DOMESTIC WELL SOUTH DOMESTIC WELL COLLECTION DATE 06/09/09 06/16/09 06/23/09 07/01/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/14/09 09/16/09 09/18/09 09/21/09 09/23/09 09/25/09 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 10/02/09 03/11/09 03/11/09 04/17/09 H-3 SR-90 2040000 +/- 30700 1890000 +/- 29700 1700000 +/- 28200 1420000 +/- 25600 1120000 +/- 22900 1180000 +/- 117000 1060000 +/- 106000 998000 +/- 99700 1180000 +/- 117000 443000 +/- 9790 287000 +/- 7930 608000 +/- 11500 621000 +/- 11600 1650000 +/-44800 2070000 +/- 49300 1550000 +/- 42600 1170000 +/- 37200 1030000 +/- 34900 1080000 +/- 32200 839000 +/- 28200 910000 +/- 33600 431000 +/- 14300 539000 +/- 26200 512000 +/- 25300 486000 +/- 24800 499000 +/- 21600 445000 +/- 14400 387000 +/- 13500 322000 +/- 12400 241000 +/- 10800 345000 +/- 18500 186000 +/- 13500 273000 +/- 16100 299000 +/- 17000 264000 +/- 15900 431000 +/- 42400 300000 +/- 17000 328000 +/- 17700 204000 +/- 9970 277000 +/- 11500 220000 +/- 10300 175 193 183 182< 0.8 B-3 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE SOUTH DOMESTIC WELL W-12 W-12 W-12 W-13 W-13 W-14 W-14 W-15 W-15 W-15 W-15 W-IA W-1A W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4K W-4K W-4K W-4K W-4K W-4K COLLECTION DATE 10/02/09 03/10/09 09/30/09 09/30/09 03/10/09 09/30/09 03/11/09 10/01/09 03/11/09 03/11/09 03/11/09 10/01/09 03/10/09 09/30/09 03/10/09 04/17/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 03/10/09 04/17/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 05/27/09 06/30/09 07/29/09 08/27/09 09/30/09 10/01/09 H-3< 175< 182< 185< 188< 177< 188< 186< 184< 183< 174 EIML QC < 149< 191< 190< 177< 191< 187< 196< 177< 164< 157< 187< 175< 177< 171< 154< 170< 187< 191< 193< 181< 167< 157< 184< 176< 179< 170< 156< 170< 177< 164< 161< 179< 177 EIML QC < 154 SR-90< 0.8< 0.6< 0.6< 0.8< 0.7< 0.7< 0.8< 0.6< 0.9 B-4 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-4K W-4K W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 COLLECTION DATE 10/28/09 11/24/09 03/11/09 04/16/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 04/22/09 04/29/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 07/01/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/20/09 08/26/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/16/09 09/18/09 09/23/09 09/25/09 H-3 SR-90 167 172 184 165 193 178 158 161 181 172 177 157 159 168 2300000 +/- 236000 1770000 +/- 28800 2170000 +/- 31800 2530000 +/- 225000 2020000 +/- 30800 2030000 +/- 31100 1780000 +/- 28700 1570000 +/- 27200 1570000 +/- 27200 721000 +/- 18500 767000 +/- 19200 982000 +/- 21700 1620000 +/- 158000 DRY 1830000 +/- 180000 1470000 +/- 144000 456000 +/- 9910 109000 +/- 4960 164000 +/- 6010 129000 +/- 5360 215000 +/- 16900 210000 +/- 16300 195000 +/- 15800 201000 +/- 16000 217000 +/- 16500 272000 +/- 18700 131000 +/- 5660 144000 +/- 6180 676000 +/- 27400 657000 +/- 26600< 0.7< 5.8 B-5 TABLE B-1.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 COLLECTION DATE 09/28/09 10/02/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/25/09 12/02/09 12/09/09 12/16/09 12/23/09 12/29/09 12/29/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 H-3 SR-90 Original Re-analysis 609000 +/- 24700 588000 +/- 23800 708000 +/- 67200 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY 4860 +/- 531 3010 +/- 338< 172 161 +/- 97* 179< 179< 164< 161< 195< 170< 169< 167< 159< 159< 196< 158< 191< 193< 179 372 +/- 116 169 +/- 103< 170< 150< 173< 180< 164< 168< 181< 182 B-6 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 COLLECTION DATE 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 04/24/09 04/29/09 05/01/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 09/02/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 H-3 SR-90< 180< 171< 159< 161< 158< 164< 164< 161 1300 +/- 192 6300 +/- 677 8320 +/- 879 7270 +/- 766 2240 +/- 269 1440 +/- 205 1390 +/- 194 1040 +/- 160 Original Re-analysis

< 163< 197< 159< 159< 163 183 +/- 117 192 +/- 115< 191 174 + 111< 184< 178< 183 93800 +/- 6340< 179 194 +/- 107< 152< 149< 151< 167< 168< 164< 180< 184< 179< 170< 157< 158< 161 B-7 TABLE B-1.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-53 W-53 W-53 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54" W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-55 W-55 W-55 COLLECTION DATE 12/15/09 12/22/09 12/29/09 04/24/09 05/01/09 05/06/09 05/13/09 05/20/09 05/28/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 06/02/09 07/01/09 07/15/09 H-3 SR-90< 164< 164* 163 5230 +/- 2000 455 +/- 130 6990 +/- 744 4150 +/- 458 2400 +/- 288 4720 +/- 515 7830 +/- 820 5820 +/- 629 2580 +/- 304 4920 +/- 535 3350 +/- 375 4180 +/- 462 7840 +/- 827 4770 +/- 518 4070 +/- 452 2650 +/- 315 1010 +/- 268 3300 +/- 374 1870 +/- 237 2430 +/- 296 2610 +/- 315 711 +/- 138 1130 +/- 174 762 +/- 151 1070 +/- 165 1550 +/- 210 545 +/- 128 264 +/- 124 277 +/- 124 2210 +/- 278 1030 +/- 163 3490 +/- 830 9520 +/- 1000 1080 +/- 169 381 +/- 119 776 +/- 140 205 +/- 109 1550000 +/- 26900 128000 +/- 8220 645000 +/- 60800 B-8 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-55 W-55 W-55 W-55 (Bottom of Well)W-55 (Middle of Well)W-55 (Top of Well)W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-561 W-561 W-561 W-561 W-561 W-561 COLLECTION DATE 07/22/09 07/29/09 08/05/09 08/12/09 08/12/09 08/12/09 08/19/09 08/25/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/14/09 09/16/09 09/18/09 09/21/09 09/23/09 09/25/09 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 09/16/09 09/18/09 09/23/09 09/25/09 09/28/09 09/30/09 H-3 837000 +/- 83600 283000 +/- 28800 175000 +/- 18000 61400 +/- 3790 57000 +/- 3660 30000 +/- 2750 207000 +/- 6730 348000 +/- 8690 759000 +/- 12800 744000 +/- 30700 544000 +/- 25700 514000 +/- 24800 603000 +/- 26900 5870001+/- 26600 575000 +/- 26900 146000 +/- 8600 137000 +/- 13700 116000 +/- 7730 236000 +/- 17600 147000 +/- 12200 207000 +/- 16500 327000 +/- 17700 177000 +/- 9360 160000 +/- 8970 150000 +/- 8750 161000 +/- 9010 121000 +/- 11200 74500 +/- 9180 48000 +/- 7790 124000 +/- 11300 82300 +/- 8160 69800 +/- 9030 78000 +/- 9380 45000 +/- 4550 35800 +/- 3620 43800 +/- 5340 22900 +/- 2330 472000 +/- 24400 485000 +/- 15100 611000 +/- 27800 482000 +/- 24700 458000 +/- 20700 493000 +/- 15200 SR-90 B-9 TABLE B-1.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-6 W-6 W-6 W-6 W-6 W-6 W-6 W-6 COLLECTION DATE 10/02/09 10/07/09 10/14/09 10/21/09 10/29/09 11/04/09 11/11/09 11/1 8/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 09/11/09 09/16/09 09/18/09 09/23/09 09/25/09 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/29/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 03/11/09 04/16/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 H-3 SR-90 514000 +/- 15500 508000 +/- 15500 608000 +/- 24000 753000 +/- 26700 955000 +/- 29600 1290000 +/- 121000 1040000 +/- 31100 1010000 +/- 94500 1150000 +/- 108000 1030000 +/- 30700 1080000 +/- 31400 1150000 +/- 22800 962000 +/- 20800 993000 +/- 21100 738000 +/- 29700 408000 +/- 22700 431000 +/- 14200 398000 +/- 22500 372000 +/- 21800 360000 +/- 18600 313000 +/- 12300 380000 +/- 13400 380000 +/- 13500 344000 +/- 18100 307000 +/- 17400 384000 +/- 19000 490000 +/- 43000 326000 +/- 17900 367000 +/- 18600 305000 +/- 17100 444000 +/- 20400 263000 +/- 16000 495000 +/- 15100 285000 +/- 11700 200000 +/- 9940< 191< 187< 191< 178* 152< 158< 176< 178 B-10 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION DATE SITE H-3 SR-90 W-6 W-6 W-6 W-6 W-6 W-7 W-7 W-9 W-9 10/01/09 10/01/09 10/29/09 11/24/09 12/30/09 03/11/09 09/30/09 03/10/09 09/30/09< 189< 188< 172< 159< 167< 187< 181< 186< 186< 0.9< 0.5< 0.7< 0.8 B-11 TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE w LW-3 LW-4 MW-15K-1A MW-15K-iA MW-15K-lA MW-15K-lA MW-15K-1A MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-IA MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-IA MW-15K-1A MW-15K-1A MW- 15K-iA MW-15K-1A MW- 15K-iA MW-15K-1A MW-15K-1A COLLECTION Mn-54 PERIOD 10/02/09 < 4 10/02/09 < 4 04/29/09 < 2 05/01/09 < 2 05/06/09 < 1 05/13/09 < 1 05/20/09 < 2 05/28/09 < 2 06/02/09 < 1 06/09/09 < 2 06/16/09 < 2 06/23/09 < 2 07/01/09 < 2 07/07/09 < 3 07/15/09 < 2 07/22/09 < 2 07/29/09 < 1 08/05/09 < 2 08/12/09 < 1 08/19/09 < 1 08/25/09 < 1 08/28/09 < 2 08/31/09 < 1 09/02/09 < 1 09/04/09 < 1 09/08/09 < 2 09/09/09 < 1 09/11/09 < 1 09/14/09 < 1 09/16/09 < 1 09/1 8/09 < 2 09/21/09 < 1 09/23/09 < 1 09/25/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140<5<4<4<4<2<1<4<3<2<3<3<4<3<5<3<4<1<2<1<1<2<2<2<2<2<3<2<2<2< 2<4<2<2<2<8<9< 15< 12<8<3< 15< 10<6<11<8< 10<9<14<10< 12<4<5<3<4<4<4<3<5<4<8<6<5<6<4< 14<6<5<4<5<5<2<2<1<1<2<2<1<2<1<2<2<3<2<3<1<2<1<1<1<2<1<1<1<1<1<1<1<1<1<2<1<1<8<9<5<4<3<1<5<3<3<4<4<5<5<7<4<4<2<3<2<2<2<3<3<2<2<4<3<2<2<2<3<3<2<2<4<5<5<4<3<1<5<4<2<3<3<4<4<5<4<4<1<2<1<2<2<2<2<2<2<3<2<2<2<2<5<3<2<2<7<9<8<7<5<2<8<6<4<6<5<7<6<9<7<8<3<4<2<3<3<4<3<4<3<5<4<3<3<3<7<5<3<3<7<8< 9890< 27800< 1020< 263>10000>10000>10000< 987< 533< 582< 336< 351< 2380< 1520>10000>10000>1 0000>10000>1 0000>1 0000>1 0000< 474< 379< 547< 425< 2010< 1680< 235< 33100< 244< 664< 125<4<4<2<2<1<1<2<2<1<2<2<2<2<3<2<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<4<4<2<2<1<1<2<2<1<2<2<2<2<3<2<2<1<1<1<1<1<2<2<1<1<1<1<1<1<1<1<1<1<1< 22< 20< 1370< 1060< 281< 95< 826< 452< 275< 323< 210< 258< 169< 209< 532< 403< 58< 65< 42< 49< 32< 39< 28< 171< 140< 224< 180< 388< 348< 123< 2900< 113< 187< 74<7<8< 430< 329< 95< 29< 286< 152< 81< 123< 70< 86< 51< 62<177< 142< 15< 14< 14< 13<10<8<8< 51< 38< 82< 49< 116< 72< 37< 756< 35< 54< 25 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE ,w MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-iA.

MW-15K-iA MW-16 MW-1 6D MW-1 I-1A MW-1 I-1A MW-1 I-1A MW-11-1A MW-11-1A MW-iI-1A MW-11-1A MW-1 I-1A MW-11-1A MW-1 I-1A MW-1 I-2A MW-1 I-2A MW-1 I-2A COLLECTION PERIOD 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/29/09 11/04/09 i 1/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 10/01/09 09/30/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 05/27/09 06/30/09 07/29/09 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140........ i<1<1<1<1<1<1<1<2<1<1<2<1<1<3<4<4<3<4<4<2<1<2<1<1<6<1<4<2<4<2< 1<3<1<3<2<2<1<2<2<3<2<2<2<2<1<2<2<3<4<5<3<2<2<1<2<5<2<2<2<5<2<2<9<4<10<8<8<2<4<6<9<6<5<5<6<4<4<5<7<8< 13<9<4<5<4<4< 12<4<5<4<10<7<5<1<1<1<1<1<1<1<1<1<2<4<4<5<2<2<4<4< 5<2<1<1<1<1< 5<1<1<1< 4< 2< 1<2<2<3<2<3<1<3<2<3<3<3<3<3<2<2<3<7<7<8<4<3<3<2<3< 11<3<3<2<8<3<3<3< 1<4<2<3<1<2<2<3<2<2<2<2<2<2< 2<3<5<5<3<2<2<2<2<6<2<2<2<4<3<2<6<2<5<4<5<2<3<4<6<4<4<4<4<2<3<3<6<8<8<6<3<4<3<4< 10<3<3<3<7<5<4< 73600< 344< 8700< 4910< 3770< 57< 74< 3470< 2640< 1120< 1020< 446< 225< 259< 188< 135<6< 11<22< 304<34>10000< 73< 94< 14< 124< 170< 130< 13< 273< 42<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<3<4<4<2<1<1<1<1<5<1<1<1<3<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<3<5<4<2<1<1<1<1<5<1<1.<1<4<2<1< 3670< 116< 1070< 630< 709< 38< 48< 565< 555< 288< 287< 163< 121< 103< 88< 82<15< 28< 39< 156< 39< 42< 48< 73< 32< 81< 93< 73< 32< 137< 43 1200 35 339 218 191 10 15 193 169 87 88 63 28 29 25 22 5 6 15 56 13 13 16 21 8 28 28 23 10 46 13 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD MW-1 I-2A MW-1 I-2A MW-1 I-2A MW-1 I-2A MW-1 I-2A MW-2A MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 ,' MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 08/26/09 10/01/09 10/29/09 11/24/09 12/30/09 09/30/09 04/29/09 05/06/09 05/13/09 05/20/09 05/28/09 06/02/09 06/09/09 06/16/09 06/23/09 07/01/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09<2<5<1<1<1<4<2<2<2<2<1<2<1<2<1<2<3<2<2<1<2<1<1<2<2<1<1<1<2<2<2 <3<5 <10<2 <5<2 <5<2 <5<5 <10<5 <19<4 <14<4 <14<3 <12<2 <7<3 <9<2 <6<3 <10<2 <7<3 <8<4 <10<4 <14<3 <8<1 <3<2 <5<1 <4<1 <4<2 <5<2 <5<2 <6<2 <6<2 <7<2 <5<3 <9<1 <2 <2 <4 >10000<6 <8 <5 <10 <11<1 <2 <2 <3 <112<1 <3 <2 <3 <141<2 <3 <2 <4 <191<4 <8 <5 <8 <9< 2 < 5 < 5 < 10 >10000<2 <5 <5 <8 <5460<2 <5 < 5 < 7 >10000<2 <4 <4 <7 >10000< 1 <3 <2 <4 >10000< 1 < 3 < 3 <5 >10000<2 <3 <2 <4 >10000<2 <5 <4 <6 <581<1 <3 <3 <4 <392<2 <4 <3 <5 <270<3 <6 <4 <7 <256<2 <5 <5 <8 <2580<1 <3 <3 <6 <1290< 1 <2 < 1 <2 >10000<2 < 4 <3 <5 >10000< 1 < 2 <2 <3 >10000< 1 < 2 <2 <3 >10000<2 <3 <2 <3 >10000< 1 <4 <2 <4 >10000<1 <2 <-2 <4 <1050<1 <2 <2 <4 <542<1 <3 <2 <4 <537<1 <2 <2 <4 <506<2 <4 <3 <6 <643<1<4<1<1<1<4<2<2<2<1<1<1<1<2<1<2<2<2<1<1<1<1<1<1<2<1<1<1<1<2<1<5<1<1<1<5<2<2<2<2<1<1<1<2<1<2<3<2<2<1<2<1<1<2<2<1<1<1<1<2< 36< 30< 71< 82* 100< 26< 2430< 963< 1110< 642* 342* 348<184* 241< 165< 137< 156< 659< 292< 45< 67< 50<44< 42< 41< 241< 201< 175< 192< 237< 15< 10* 22< 19* 26<8* 872< 307< 342* 226* 108< 102< 65< 87< 53< 50< 48* 178< 97<15< 24< 15<14< 14< 11< 77< 57< 57< 50< 73 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE 631 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-6 MW-6 MW-6 MW-6 MW-6 MW-6 MW-6 COLLECTION Mn-54 PERIOD 09/11/09 < 1 09/14/09 < 1 09/16/09 < 2 09/18/09 < 1 09/21/09 < 1 09/23/09 < 1 09/25/09 < 1 09/28/09 < 2 09/30/09 < 1 10/02/09 < 1 10/07/09 < 1 10/14/09 < 1 10/21/09 < 1 10/28/09 < 1 11/04/09 < 1 11/11/09 < 1 11/18/09 < 1 11/24/09 < 1 12/01/09 < 2 12/08/09 < 1 12/15/09 < 1 12/22/09 < 1 12129/09 < 1 05/27/09 < 4 06/30/09 < 2 07/29/09 < 2 08/26/09 < 1 09/30/09 < 1 10/01/09 < 4 10/01/09 < 5 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140<2<2<2<3<2<2<2<4<3<3<2<2<1<2<2<1<3<3<3<2<1<2<1<6<3<2<2<2<4<5<6<7< 13<5<4<3< 13< 10< 10<7<6<3<4<8<3<8<7<8<5<3<4<4< 10<9<5<4<3<7<1<1<2<2<1<1<1<1<1<1<1<1<2<2<1<1<2<2<1<1<1<1<1<4<2<1<2<1<4<2<2<3<3<2<3<2<3<3<3<2<2<1<3<3<2<3<3<3<2<2<2<2< 10<4<3<3<2<7<2<2<3<4<2<2<2<5<4<3<3<3<1<2<3<1<2<3<3<2<1<2<2<6<3<2<2<1<4<3<4<4<7<4<4<3<9<6<6<5<4<2<3<6<3<4<4<5<3<2<3<2< 10<6<4<3<3<8< 1810< 1720< 332< 26500< 168< 150< 134>10000< 11400< 9400< 6360< 3160< 63< 58< 3980< 17< 1330< 1110< 485< 152< 218< 192<77< 27< 320< 46>10000< 86<7<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<5<2<1<1<1<3<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<5<2<2<1<1<4< 387< 352< 160< 2210< 91< 96< 75< 5750< 1380< 1200< 733< 505< 41< 42< 668< 21< 392< 297< 188< 89< 89< 97< 56< 39< 153< 43< 42< 50< 18< 115< 113< 47< 704< 25< 23< 20< 1570< 368< 358< 276< 199<11< 16< 191<4< 86<84< 47< 19< 27< 25<14< 14< 55< 14< 11< 17<7 La-140<6 < 11 < 7 < 10 <5 < 10 < 11<5 <5 <29 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA w SITE COLLECTION Mn-54 PERIOD MW-6 10/29/09 < 2 MW-6 11/24/09 < 1 MW-6 12/30/09 < 1 MW-7 09/30/09 < 5 MW-9 09/30/09 < 4 NORTH DOMESTIC WELL 10/02/09 < 3 SOUTH DOMESTIC WELL 10/02/09 < 5 W-12 09/30/09 < 5 W-12 09/30/09 < 6 W-13 09/30/09 < 4 W-14 10/01/09 < 6 W-15 10/01/09 < 5 W-IA 09/30/09 < 4 W-3 05/27/09 < 3 W-3 06/30/09 < 2 W-3 07/29/09 < 2 W-3 08/26/09 < 1 W-3 09/30/09 < 1 W-3 10/01/09 < 5 W-3 10/29/09 < 1 W-3 11/24/09 < 1 W-3 12/30/09 < 1 W-4 05/27/09 < 5 W-4 06/30/09 < 1 W-4 07/29/09 < 2 W-4 08/26/09 < 1 W-4 09/30/09 < 1 W-4 10/01/09 < 6 W-4 10/29/09 < 1 W-4 11/24/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140<3<2<1<4<4<3<5<5<5<4<6<5<4<3<3<2<2<2<5<2<2<2<5<2<3<1<2<6<2<1<8<4<4< 12<9<6< 10<9<10<9< 13< 10<9<8<8<6<4<4< 11<6<5<4< 11<6<6<4<5< 12<5<3<1<1<1<6<4<4<6<4<6<4<5<5<4<3<2<3<1<1<4<1<1<1<5<1<2<1<2<6<1<1<3<2<2< 12<8<7< 11<11< 12<9< 12< 11<8<5<4<4<3<3<9<3<3<3< 10<3<4<3<3< 12<2<2<3<2<2<4<4<4<6<7<6<5<7<5<4<4<4<2<2<2<6<2<2<2<6<2<2<2<2<7<2<2<5<4<3< 10<8<6<8<9< 10<.8< 10<9<9<8<5<4<3<4< 10<4<3<4<9<4<4<3<4<9<3<2< 1020< 177< 122<9<8<6< 12< 12<12<10< 11<10< 10< 18< 315< 30>10000< 99<14< 795< 159< 158< 24< 233< 28>10000< 108< 14< 659< 127<1<1<1<5<4<3<6<5<6<4<5<5<4<3<2<2<1<1<5<1<1<1<4<1<2<1<1<6<1<1<2<1<1<5<4<4<6<5<7<4<6<5<4<3<2<2<1<1<6<1<1<1<5<1<2<1<1<6<1<1< 311<84< 68< 26< 21< 16< 26< 27< 35< 24< 35< 27< 24< 35< 154< 39< 38< 68< 27< 245<84< 95< 41< 114< 37< 37< 71< 38< 191< 71< 85< 27< 23<8<6<5<11<7< 10<9<9<9<7<8< 53<13<13<19<10< 67< 27< 22<13< 37<14<11< 22<8< 42< 17 La- 140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba- 140 La-140 W-4 W-4K W-4K W-4K W-4K W-4K W-4K W-4K W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 12/30/09 05/27/09 06/30/09 07/29/09 08/27/09 09/30/09 10/28/09 11/24/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 04/22/09 04/29/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 07/01/09 07/07/09 07/15/09<2<3<2<1<1<1<4<1<2<2<2<1<1<5<2<1<1<11<2<2<2<2<2<1<1<2<2<2<3<1<2 <6 <2 <4 <3 <4 < 197<4 <8 <3 <8 <4 <7 <18<3 <8 <2 <4 <3 <6 <316<2 <4 <1 <3 <2 <3 <36<2 <4 < 2 < 3 <2 <3 >10000<1 <3 <1 <2 <1 <2 <73< 6 < 17 < 2 < 6 < 7 < 13 < 6340<2 <3 <1 <2 <2 <3 <85<3 <5 <1 <5 <3 <6 <11<3 <9 <2 <4 <3 <6 <310<2 <5 <2 <3 <2 <4 <28<2 <5 < 1 <3 <2 <3 >10000<2 <4 <1 <2 <2 <3 <81<5 < 12 < 5 < 12 <6 < 10 < 15<3 < 10 <2 <3 <4 <6 <6310< 2 < 6 < 1 <3 <2 <4 < 186<1 <3 <1 <2 <2 <2 <105< 15 < 40 < 9 < 23 < 17 < 30 < 1300< 5 < 18 < 2 <5 <5 <9 >10000<3 < 13 < 1 <3 <4 <7 >10000<3 < 10 <2 <4 <4 <6 <746< 4 < 15 < 2 < 5 < 5 < 8 >10000< 4 < 13 < 2 < 4 <4 < 8 <6500<2 <5 < 1 <2 <2 <3 >10000<2 <6 < 1 <2 <2 <4 >10000<3 <8 <1 <3 <3 <5 <458<2 < 7 <2 <4 <3 <5 <356<3 < 10 <2 <.5 <3 < 6 <279<5 <14 <3 <8 <5 <9 <337< 1 <4 < 1 < 1 <2 <3 >10000<1<3<2<1<1<1<3<1<2<2<2<1<1<5<1<1<1< 10<2<1<2<2<2<1<1<1<1<2<3<1<2<4<2<1<1<1<3<1<2<2<2<1<1<5<1<1<1<11<2<1<2<2<2<1<1<1<1<2<3<1< 109< 31< 156< 37< 38< 47< 1250< 54< 25< 162< 32< 31< 53< 31< 962< 99< 61< 728< 2200< 1270< 257< 839< 1000< 232< 191< 188< 154< 152< 198< 181< 38< 11< 49< 10< 13< 12< 277< 10<8< 54< 10< 15< 20<9< 244< 24< 23< 243< 789< 431< 80< 292< 304< 74< 75< 67< 55< 60< 65< 53 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 w 0, W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 07/29/09 08/05/09 08/12/09 08/20/09 08/26/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/16/09 09/18/09 09/23/09 09/25/09 09/28/09 10/02/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/25/09 12/02/09 12/09/09 12/16/09 12/23/09<1<1<1<1<2<2<1<2<2<2<2<1<3<3<3<3<3<4<2 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY<1<1<1<1<2<2<3<2<3<3<2<2< 18< 21< 16<14< 17< 20< 10<3<3<3<3<6<84<8< 8<9<7<7<8< 142* 148* 122< 103< 118* 125< 67<1<1<1<1<2<2<1<2<2<2<2<1<3<2<2<2<2<2<2<2<2<2<3<3<3<2<3<4<3<4<2<8<8<7<6<8<9<4<1<-2<1<2<2<2<3<3<4<3<3<3< 23< 26< 21< 18< 22< 26< 13<3<3<2<3<4<3<5<4<6<6<5<4< 41<43< 35< 32< 38< 45< 21>10000>10000>10000>10000>10000>10000< 1180< 514< 943< 568< 502< 4060>10000>10000>10000>10000>10000>10000>10000<1<1<1<1<1<1<1<1<2<2<2<1<2<3<2<2<2<4<1<1<1<1<1<2<1<1<1<2<2<2<1<2<2<2<2<2<3<1< 59< 38< 43< 36< 43< 35< 323* 195< 309< 217< 210< 602>10000>10000>10000>10000>10000>10000>10000< 14<9< 14<7< 14< 11< 94< 79< 83< 88* 58< 208>1 0000>1 0000>10000>10000>10000>10000>10000 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140.... ill I]W-51 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52' W-52 co W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 12/29/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09<2<1<2<4<4<2<1<2<1<2<3<1<1<2<3<2<1<2<1<2<1<1<1<1<1<1<1<2<2<1<4 <7<2 <4<3 <8<4 <10<4 <11<3 <11<2 <5<3 <8<2 <7<3 <8<5 <13<2 <4<1 <3<3 <7<3 <8<2 <6<1 <3<2 <4<2 <4<3 <7<2 <6<2 <4<2 <4<1 <5<2 <5<3 <8<2 <6<2 <5<2 <6<2 <5<2 <5 <3<1 <2 <2<2 <4 <3<3 <8 <4<5 <9 <5<2 <4 <4<1 <2 <2<1 <4 <3<1 <3 <3<2 <3 <3<3 <7 <5<2 <2 <2<1 <2 <2<2 <4 <3<2 <5 <4<2 <4 <3<1 <2 <2<1 <3 <2<1 <2 <2<2 <4 <3<1 <3 <3<1 <2 <2<1 <2 <2<1 <2 <2<1 <2 <2<2 <4 <3<2 <3 <2<1 <3 <2<2 <4 <2<1 <2 <2<6<3<5<7<9<6<3<5<5<5<9<3<3<5<6<4<3<3<3<6<4<4<3<3<4<5<4<4<4<3< 248< 26< 662< 26< 24>10000>10000< 517< 406< 270< 322< 67< 45< 40<33>10000>10000>1 0000< 413< 572< 941< 447< 94< 1380< 1120< 714< 177< 83* 56< 137<2<1<1<4<4<2<1<2<1<2<3<1<1<2<2<2<1<1<1<2<1<1<1<1<1<1<1<1<1<1<3<1<1<3<5<2<1<2<1<2<3<1<1<2<3<2<1<2<1<2<1<1<1<1<1<1<1<1<2<1< 138< 28< 226< 45< 49< 385< 148< 199< 166< 134< 200< 58< 34< 46< 47< 53< 33<44< 143< 239< 235< 148< 63< 289< 280< 220< 93< 63< 50< 82< 37<9< 80< 14< 13< 131< 52< 69< 57< 45< 64<13<11<14*13< 15< 12< 12< 38< 82< 78< 44< 19< 86< 77< 57< 32< 20< 15< 25 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-h2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE (P W-52 W-52 W-52 W-52 W-52 W-52 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 COLLECTION PERIOD 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 04/29/09 05/01/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140< 2<2<1<1<1<1<2<2<2<2< 2< 2< 2<1<2<1<2<3<.1<1<2<2<1<1<1<1< 2<1<1<1<2<3<2<2<2<2<4<4<4<3< 2<4<3<2< 2<'2<3<5<2<'2<2<3<2<2<'2<2<2<2<1<1<6<8<6< 6<4<5< 13< 16< 16< 10<5< 12< 11<5<7< 6<8< 13<5<4<5<7<4<4<5<6<'6<5<4<3<1<2<2<2<1<1<2<2<2<2<2<2<2<1<1<1<2<3<1<1<2<'2<1<1<'2<1<1<1<1<1<4<3<3<3<3<3<4<5<5<4<4<4<4<3<3<3<4<6<3<3<5<5<3<2<3<3<4<2< 2<2<3<3<2<2<2<2<4<5<5<4<2<4<4<2<3<2<3<5< 2<2<3<3<2<'2<'2<2<3<2<1<1<4<5<4<4<4<4<7<9<9<7<4<7<7<4<5<4<6<8<4<3<5<5<3<3<4<4<5<3<3<3< 681< 458< 195< 370< 191< 99< 23500< 7470>10000< 838< 19>1 0000>1 0000>10000< 464< 361< 323< 319< 69< 52< 36< 37>10000>10000>1 0000< 542< 530< 714< 373< 217<1<2<1<1<1<1<2<2<2<2<2<2<2<1<1<1<2<3<1<1< 2< 2<1<1<1<1<1<1<1<1<2<2<1<2<1<1<2<2<2< 2<2<2<2<1<1<1<2<3<1<1<2<2<1<1<2<1<1<1<1<1< 269< 181< 107< 163< 105< 74< 1070< 1230< 1600* 282< 28< 552< 409< 173< 188< 147< 153< 192< 48< 43< 39< 46< 44< 46< 46< 186< 200* 185< 123< 89< 51< 50< 33< 38< 29< 18< 363< 359< 565< 91<9* 164* 136< 57< 57* 46< 51< 57* 15< 15* 12< 14* 14< 15* 13* 58* 62< 59< 33* 28 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65. Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-54 S W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 05/01/09 05/06/09 05/13/09 05/20/09 05/28/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09<1<1<1<1<1<2<2<1<1<1<1<1<1<1<2<2<2<2<1<2<2<2<2<3<2<3<2<2<1<1<2 <7<2 <6<2 <5<2 <5<2 <4<2 <6<2 <6<2 <5<2 <6<1 <5<3 <6<2 <6<1 <4<1 <4<4 <13<3 <10<4 <14<4 <11<2 <5<3 <11<4 <11<2 <7<3 <8<5 <13<3 <9<5 <14<3 <9<2 <5<1 <4<1 <3<1 <2 <2<1 <2 <2<1 <2 <2<1 <3 <2<1 <3 <2<2 <3 <3<1 <3 <2<1 <3 <2<1 <3 <2<1 <2 <2<1 <3 <3<1 <3 <2<1 <2 <2<1 <2 <2<2 <5 <4<2 <4 <3<2 <5 <5<2 <4 <4<1 <2 <2<2 <4 <4<2 <5 <4<1 <3 <3<2 <4 <4<3 <7 <5<2 <3 <3<3 <6 <5<2 <4 <4<2 <4 <2<1 <2 <1<1 <2 <1< 4 < 1850< 4 < 1100< 3 < 590<4 < 130<3 <68<3 <61< 4 < 182<3 <134< 3 < 269< 3 < 150< 5 < 316<4 < 191<3 <85<3 < 38< 7 < 4030< 6 < 717< 8 >10000< 7 >10000< 3 >10000< 6 < 1020< 7 < 1420< 5 < 441< 6 < 323< 9 < 366< 6 < 2220< 9 < 1800<6 < 812< 4 >10000< 3 >10000< 2 >10000<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<2<2<1<2<2<1<2<3<1<2<2<2<1<1<1<1<1<1<1<2<2<1<1<1<1<1<1<1<2<2<2<2<1<2<2<1<2<3<2<2<2<2<1<1< 402< 309< 179< 73< 57< 54< 102< 85< 128<84< 163< 99< 56< 32< 870< 256< 871< 513< 206< 319< 446< 168< 162< 205< 506< 570< 282< 69< 52< 34< 137< 75< 65< 21< 17< 20< 31< 28< 30< 23< 42< 28< 19<10< 239< 80< 276< 165< 62< 94< 141< 53< 52< 74< 120< 143< 99< 21< 14< 14 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 rw W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-55 W-55 W-55 W-55 W-55 W-55 W-55 (Bottom of Well)W-55 (Middle of Well)W-55 (Top of Well)W-55 W-55 08/25/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12101/09 12/08/09 12/15/09 12/22/09 12/29/09 06/02/09 07/01/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/12/09 08/12/09 08/19/09 08/25/09<1<1<2<2<1<2<1<1<1<1<2<1<1<1<1<2<1<1<1<2<2<2<3<2<2<1<1<1<1<2<2<2<3<3<1<3<2<2<2<2<2<3<1<2<3<2<2<2<1<3<2<3<4<3<2<1<1<2<1<4<5<8<7<4<8<6<5<6<4<6<8<4<6<7<7<7<4<3< 11<7< 11< 13<9<5<3<3<4<4<1<1<1<2<1<2<1<1<1<1<2<1<1<1<1<1<1<1<1<2<2<2<2<2<2<1<1<1<1<2<3<4<3<2<3<2<2<2<3<4<3<2<2<3<4<3<2<2<4<3<4<5<4<3<2<2<3<2<2<2<3<3<2<3<3<2<2<2<3<2<2<3<3<2<2<2<1<4<3<4<5<4<2<1<1<2<2<3<4<5<5<3<6<4<3<4<4<3<5<3<4<4<5<4<3<2<7<5<6<9<6<4<2<2<3<3>1 0000< 502< 558< 370< 127< 1490< 1810< 860< 660< 157< 108< 1780< 2030< 1040< 518< 679< 353< 145< 65>10000< 259< 2240< 1660< 891>1 0000>10000>10000>10000>10000<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<2<2<2<2<2<1<1<1<1<1<1<1<2<2<1<1<1<1<1<1<2<1<1<2<2<2<2<1<1<2<2<2<2<2<2<1<1<1<1< 38< 174< 204< 163< 74< 339< 367< 208< 208< 93< 82< 400< 344< 274< 191< 220< 141< 73< 41< 421< 128< 577< 489< 304< 55< 50< 48< 50< 41<9< 53< 50< 54< 19< 142< 141< 65< 60< 22< 24< 106< 94< 87< 46< 60< 46< 24< 11< 127< 41< 180< 169< 97< 21< 14< 15< 14< 14< 13<2 <6 < 1 <3 <2 <4 >10000<2 <2 <47 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE IN, W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-561 COLLECTION PERIOD 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/14/09 09/16/09 09/18109 09/21/09 09/23/09 09/25/09 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 09/16/09 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140<2<2<1<1<2<2<1<1<1<1<2<1<1<.2<2<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<2<3<2<2<3<2<2<3<2<2<2<2<2<4<3<2<2<2<1<3<3<1<2<2<2<2<2<2<2<2<5<9<6<5< 10<7<6< 12<7<9<6<5<4< 16< 13<9<8<7<3< 10<9<3<7<5<7<5<5<5<5<6<1<1<1<1<2<2<1<1<1<1<2<1<1<2<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<3<4<2<2<4<4<2<3<4<2<3<2<2<4<3<2<2<3<2<3<3<2<2<3<3<3<2<2<3<3<2<4<2<2<3<3<2<4<3<3<3<2<2<4<3<3<3<3<1<3<3<1<3<2<2<2<2<2<2<2<3<6<4<3<6<5<4<6<5<5<4<4<3<8<7<4<4<5<2<5<5<2<5<4<4<4<3<3<4<4>10000< 1550< 518< 427< 597< 609< 2060< 36700< 328< 22100< 254< 865< 124>10000< 12000< 7360< 4850< 4250< 54< 7960< 4230< 17< 1520< 302< 432< 181< 316< 180< 128< 323<1<2<1<1<1<1<1< 1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<1<1<2<2<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<1<1<2<2<1<1<1<1<1< 41< 403< 195< 163< 244< 219< 377< 2750< 158< 1530< 130< 230< 70< 5530< 1410< 914< 687< 697< 34< 998< 687< 20< 415< 134< 161< 104< 127< 96< 79< 125< 14< 133< 61< 52< 64< 76< 147< 566* 50< 488< 36< 62< 20< 1700< 340* 280* 233< 224<12< 316* 196<6< 119< 39< 56< 31< 35< 34< 25< 48 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE wo W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 COLLECTION Mn-54 PERIOD 09/18/09 < 1 09/23/09 < 1 09/25/09 < 1 09/28/09 < 2 09/30/09 < 1 10/02/09 < 1 10/07/09 < 2 10/14/09 < 1 10/21/09 < 1 10/29/09 < 1 11/04/09 < 2 11/11/09 < 1 11/18/09 < 2 11/24/09 < 1 12/01/09 < 1 12/08/09 < 2 12/15/09 < 1 12/22/09 < 1 12/29/09 < 1 09/11/09 < 1 09/16/09 < 2 09/18/09 < 2 09/23/09 < 1 09/25/09 < 2 09/28/09 < 1 09/30/09 < 1 10/02/09 < 1 10/07/09 < 1 10/14/09 < 1 10/21/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140<3<2<2<5<3<2<3<1<2<3<3<1<3<2<2<2<1<2<2<2<2<4<2<2<4<2<3<3<1<1< 10<5<4< 17< 10<7< 11<2<4<8<9<2<8<6<6<6<3<4<6<8<6< 14<6<5< 14<8< 10< 13<4<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<3<2<2<4<3<2<3<1<2<3<3<2<3<2<2<3<2<2<3<2<3<3<2<3<3<3<3<3< 2<1<3<2<2<4<4<2<4<1<2<3<3<1<3<2<2<2<1<2<2<3<3<5<2<3<5<3<4<4<1<1<6<4<2<8<6<3<6<2<4<5<5<2<5<4<5<4<2<3<4<5<5<7<3<4<7<4<5<6<2<2< 23500< 158< 118>10000< 10700< 6390< 8180< 83< 131< 6890< 4970< 17< 1640< 826< 405< 261< 217* 150<122< 2570< 332< 34900< 168< 198>10000< 9730< 9760< 7910< 123< 52<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<2<1<2<1<1<2<2<1<1< 1920< 89< 69< 6070< 1180< 764< 1090< 45< 75< 926< 801< 21< 415< 258< 151< 119< 86< 73<77< 494< 142< 2940< 80< 120< 5780< 1140< 1130< 1210< 68< 34< 522< 23< 16< 1970< 270< 256< 331< 15< 18< 350< 196<5< 120< 64< 59< 40< 26< 20< 24< 143< 42< 795< 27< 29< 1660< 304< 331< 348< 22< 10 La- 140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 COLLECTION Mn-54 PERIOD 10/29/09 < 1 11/04/09 < 2 11/11/09 < 1 11/18/09 < 1 11/24/09 < 1 12/01/09 < 1 12/08/09 <z 1 12/15/09 < 1 12/22/09 < 1 12/29/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140<1<3<1<2<3<1<2<2<2<1<3< 10<2<5<7<5<5<5<4<3<1<2<1<1<1<1<1<1<1<1<2<3<2<2<3<2<2<2<2<2<1<3<1<2<2<2<2<2<2<1<3<6<2<3<5<3<4<3<3<2< 48< 5500< 17< 1090< 893< 331< 208< 325< 175< 78<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1< 34< 867< 21< 287< 246< 134< 111< 132< 93< 49< 10< 202<6< 71< 83< 48< 29< 42< 26< 14 T 01 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-11.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 MCD 04/16/09 < 190 MCD 04/28/09 < 153 MCD 04/29/09 < 157 MCD 05/05/09 < 198 MCD 05/12/09 < 181 MCD 05/19/09 < 182 MCD 05/26/09 < 175 MCD 06/02/09 < 166 MCD 06/08/09 < 158 MCD 06/13/09 < 181 MCD 06/15/09 < 179 MCD 06/22/09 < 158 MCD 06/26/09 < 181 MCD 06/27/09 < 180 MCD 06/28/09 < 178 MCD 06/29/09 < 181 MCD 06/30/09 < 171 MCD 07/01/09 < 183 MCD 07/02/09 < 185 MCD 07/03/09 < 185 MCD 07/04/09 < 116 MCD 07/05/09 < 117 MCD 07/06/09 < 111 MCD 07/07/09 < 108 MCD 07/08/09 < 118 MCD 07/09/09 < 114 MCD 07/10/09 < 117 MCD 07/11/09 < 167 MCD 07/12/09 < 175 MCD 07/13/09 < 165 MCD 07/14/09 < 166 MCD 07/15/09 < 168 MCD 07/16/09 < 167 MCD 07/17/09 < 176 MCD 07/18/09 < 181 MCD 07/19/09 < 182 MCD 07/20/09 < 179 MCD 07/21/09 < 135 MCD 07/22/09 < 164 MCD 07/23/09 < 162 MCD 07/24/09 < 162 MCD 07/25/09 < 165 MCD 07/26/09 < 125 MCD 07/27/09 < 127 MCD 07/28/09 < 159 MCD 07/29/09 < 169 MCD 07/30/09 < 178 MCD 07/31/09 < 173 MCD 08/01/09 < 194 MCD 08/02/09 < 153 MCD 08/03/09 < 149 B-26 TABLE B-1l.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 MCD 08/04/09 < 183 MCD 08/05/09 < 168 MCD 08/06/09 < 159 MCD 08/07/09 < 160 MCD 08/08/09 < 168 MCD 08/09/09 < 151 MCD 08/10/09 < 162 MCD 08/11/09 < 162 MCD 08/12/09 < 154 MCD 08/13/09 < 154 MCD 08/14/09 < 187 MCD 08/15/09 < 188 MCD 08/16/09 < 185 MCD 08/17/09 < 165 MCD 08/18/09 < 163 MCD 08/19/09 < 167 MCD 08/20/09 < 195 MCD 08/21/09 < 195 MCD 08/22/09 < 182 MCD 08/23/09 < 180 MCD 08/24/09 < 166 MCD 08/25/09 < 176 MCD 08/26/09 < 174 MCD 08/27/09 < 175 MCD 08/28/09 < 178 MCD 08/29/09 < 177 MCD 08/30/09 < 193 MCD 08/31/09 < 177 MCD 09/01/09 < 170 MCD 09/02/09 < 172 MCD 09/03/09 < 164 MCD 09/04/09 < 192 MCD 09/05/09 < 192 MCD 09/06/09 < 190 MCD 09/07/09 < 178 MCD 09/08/09 < 191 MCD 09/09/09 < 174 MCD 09/10/09 < 173 MCD 09/11/09 < 184 MCD 09/12/09 < 170 MCD 09/13/09 < 194 MCD 09/14/09 < 190 MCD 09/15/09 < 196 MCD 09/16/09 < 165 MCD 09/17/09 < 175 MCD 09/18/09 < 163 MCD 09/19/09 < 131 MCD 09/20/09 < 140 MCD 09/21/09 < 130 MCD 09/22/09 < 140 B-27 6 TABLE B-11.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION SITE DATE H-3 SR-90 MCD 09/23/09 < 138 MCD 09/24/09 < 136 MCD 09/25/09 < 130 MCD 09/26/09 < 140 MCD 09/27/09 < 171 MCD 09/28/09 < 172 MCD 09/29/09 < 172 MCD 09/30/09 < 169 MCD 10/01/09 < 150 MCD 10/02/09 < 142 MCD 10/03/09 < 150 MCD 10/04/09 < 143 MCD 10/05/09 < 151 MCD 10/06/09 < 164 MCD 10/07/09 < 171 MCD 10/08/09 < 171 MCD 10/09/09 < 177 MCD 10/10/09 < 183 MCD 10/11/09 < 181 MCD 10/12/09 < 179 MCD 10/13/09 < 173 MCD 10/14/09 < 176 MCD 10/15/09 < 168 MCD 10/16/09 < 173 MCD 10/16/09 < 167 MCD 10/17/09 < 166 MCD 10/17/09 < 165 MCD 10/18/09 < 163 MCD 10/18/09 < 185 MCD 10/19/09 < 166 MCD 10/20/09 < 169 MCD 10/21/09 < 162 MCD 10/22/09 < 169 MCD 10/23/09 < 169 MCD 10/24/09 < 168 MCD 10/25/09 < 178 MCD 10/26/09 < 184 MCD 10/27/09 < 182 MCD 10/28/09 < 162 MCD 10/29/09 < 161 MCD 10/30/09 < 158 MCD 10/31/09 < 181 MCD 11/01/09 < 181 MCD 11/02/09 < 182 MCD 11/03/09 < 160 MCD 11/04/09 < 162 MCD 11/05/09 < 183 B-28 TABLE B-I1.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 MCD 11/06/09 < 182 MCD 11/07/09 < 177 MCD 11/08/09 < 187 MCD 11/09/09 < 180 MCD 11/10/09 < 176 MCD 11/11/09 < 178 MCD 11/12/09 < 172 MCD 11/13/09 < 172 MCD 11/14/09 < 174 MCD 11/15/09 < 167 MCD 11/16/09 < 156 MCD 11/17/09 < 167 MCD 11/18/09 < 160 MCD 11/19/09 < 164 MCD 11/20/09 < 164 MCD 11/21/09 < 169 MCD 11/22/09 < 168 MCD 11/23/09 < 168 MCD 11/24/09 < 164 MCD 11/25/09 < 164 MCD 11/26/09 < 172 MCD 11/27/09 < 193 MCD 11/28/09 < 190 MCD 11/29/09 < 192 MCD 11/30/09 < 161 MCD 12/01/09 < 161 MCD 12/02/09 < 193 MCD 12/03/09 < 187 MCD 12/04/09 < 187 MCD 12/05/09 < 185 MCD 12/06/09 < 164 MCD 12/07/09 < 166 MCD 12/08/09 < 166 MCD 12/09/09 < 158 MCD 12/10/09 < 156 MCD 12/11/09 < 158 MCD 12/12/09 < 161 MCD 12/13/09 < 129 MCD 12/14/09 < 163 MCD 12/15/09 < 162 MCD 12/16/09 < 169 MCD 12/17/09 < 168 MCD 12/18/09 < 177 MCD 12/18/09 < 165 MCD 12/19/09 < 166 B-29 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 MCD 12/20/09 < 164 MCD 12/21/09 < 164 MCD 12/22/09 < 165 MCD 12/23/09 < 165 MCD 12/24/09 < 165 MCD 12/25/09 < 166 MCD 12/26/09 < 169 MCD 12/27/09 < 172 MCD 12/28/09 < 169 MCD 12/29/09 < 176 MCD 12/30/09 < 166 MCD 12/31/09 < 167 Sw-i 04/28/09 < 149 Sw-1 04/29/09 < 156 Sw-i 05/05/09 < 199 Sw-i 05/12/09 < 179 SW-i 05/19/09 < 179 SW-1 05/26/09 < 178 SW-1 06/02/09 < 168 SW-1 06/08/09 < 162 Sw-i 06/15/09 < 158 Sw-i 06/22/09 < 158 SW-i 06/26/09 < 181 Sw-i 06/27/09 < 168 Sw-i 06/28/09 < 181 SW-1 06/29/09 < 178 Sw-i 06/30/09 < 168 Sw-i 07/01/09 < 179 Sw-i 07/02/09 < 178 Sw-i 07/03/09 < 186 SW-i 07/04/09 < 118 SW-i 07/05/09 < 200 Sw-i 07/06/09 < 116 SW-i 07/07/09 < 117 Sw-i 07/08/09 < 110 Sw-i 07/09/09 < 120 Sw-i 07/10/09 < 114 SW-1 07/11/09 < 179 Sw-i 07/12/09 < 180 SW-i 07/13/09 < 169 SW-i 07/14/09 < 161 SW-i 07/15/09 < 163 SW-i 07/16/09 < 166 Sw-i 07/17/09 < 168 Sw-i 07/18/09 < 178 B-30 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 SW-1 07/19/09 < 180 SW-1 07/20/09 < 179 SW-1 07/21/09 < 133 SW-1 07/22/09 < 148 SW-1 07/23/09 < 154 SW-1 07/24/09 < 160 SW-i 07/25/09 < 159 Sw-i 07/26/09 < 169 Sw-i 07/27/09 < 126 SW-1 07/28/09 < 161 SW-1 07/29/09 < 161 SW-1 07/30/09 < 181 SW-1 07/31/09 < 181 SW-1 08/01/09 < 181 SW-1 08/02/09 < 161 SW-1 08/03/09 < 161 Sw-1 08/04/09 < 157 SW-1 08/05/09 < 166 SW-1 08/06/09 < 167 SW-1 08/07/09 < 162 SW-1 08/08/09 < 169 SW-1 08/09/09 < 174 SW-1 08/10/09 < 161 SW-1 08/11/09 < 163 SW-1 08/12/09 < 165 SW-1 08/13/09 < 159 SW-1 08/14/09 < 189 SW-1 08/15/09 < 187 SW-1 08/16/09 < 178 SW-1 08/17/09 < 172 Sw-i 08/18/09 < 163 Sw-i 08/19/09 < 164 Sw-i 08/20/09 < 191 Sw-i 08/21/09 < 192 Sw-i 08/22/09 < 183 Sw-i 08/23/09 < 166 Sw-i 08/24/09 < 167 Sw-i 08/25/09 < 178 Sw-i 08/26/09 < 194 Sw-i 08/27/09 < 183 Sw-i 08/28/09 < 171 Sw-i 08/29/09 < 189 Sw-i 08/30/09 < 192 Sw-i 08/31/09 < 192 Sw-i 09/01/09 < 169 B-31 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 SW-1 09/02/09 < 168 Sw-1 09/03/09 < 169 Sw-i 09/04/09 < 190 Sw-i 09/05/09 < 192 Sw-i 09/06/09 < 182 Sw-i 09/07/09 < 193 Sw-i 09/08/09 < 175 SW-1 09/09/09 < 171 SW-i 09/10/09 < 154 Sw-i 09/11/09 < 178 SW-i 09/12/09 < 160 Sw-i 09/13/09*

< 190 Sw-i 09/14/09 < 185 Sw-i 09/15/09 < 194 Sw-i 09/16/09 < 164 Sw-1 09/17/09 < 166 Sw-i 09/18/09 < 166 Sw-i 09/19/09 < 127 Sw-i 09/20/09 < 183 Sw-i 09/21/09 < 138 Sw-i 09/22/09 < 128 SW-i 09/23/09 < 141 Sw-i 09/24/09 < 136 Sw-i 09/25/09 < 124 SW-i 09/26/09 < 126 SW-i 09/27/09 < 128 SW-1 09/28/09 < 174 Sw-i 09/29/09 < 167 Sw-i 09/30/09 < 168 Sw-i 10/01/09 < 166 Sw-i 10/02/09 < 146 Sw-i 10/03/09 < 142 Sw-i 10/04/09 < 148 Sw-i 10/05/09 < 151 SW-i 10/06/09 < 147 SW-i 10/07/09 < 170 Sw-i 10/08/09 < 172 SW-1 10/09/09 < 168 SW-i 10/10/09 < 169 SW-i 10/11/09 < 181 SW-i 10/12/09 < 180 SW-i 10/13/09 < 177 SW-i 10/14/09 < 171 Sw-i 10/15/09 < 173 Sw-i 10/16/09 < 166 B-32 TABLE B-Il.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE SW-1 Sw-1 sw-1 Sw-1 SW-1 Sw-1 Sw-1 SW-1 SW-1 SW-i SW-1 SW-1 sw-1 SW-i SW-1 Sw-1 SW-1 Sw-1 sw-1 Sw-1 SW-1 SW-1 Sw-1 Sw-1 Sw-1 SW-1 SW-i SW-1 Sw-1 Sw-1 Sw-1 SW-1 Sw-1 Sw-1 Sw-1 sw-1 SW-1 SW-i SW-1 SW-1 Sw-1 Sw-1 sw-1 SW-1 Sw-1 COLLECTION DATE 10/16/09 10/17/09 10/17/09 10/18/09 10/18/09 10/19/09 10/20/09 10/21/09 10/22/09 10/23/09 10/24/09 10/25/09 10/26/09 10/27/09 10/28/09 10/29/09 10/30/09 10/31/09 11/01/09 11/02/09 11/03/09 11/04/09 11/05/09 11/06/09 11/07/09 11/08/09 11/09/09 11/10/09 11/11/09 11/12/09 11/13/09 11/14/09 11/15/09 11/16/09 11/17/09 11/18/09 11/19/09 11/20/09 11/21/09 11/22/09 11/23/09 11/24/09 11/25/09 11/26/09 11/27/09 H-3< 165< 168< 164< 168< 164< 169< 170< 167< 180< 168< 168< 180< 181< 179< 161< 165< 159* 178* 182< 179< 163< 162< 188< 178< 182< 181< 180< 181< 180< 170< 170< 171< 164< 154< 166< 163< 165< 161< 169< 169< 169< 165< 162< 182< 184 SR-90 B-33 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 Sw-i 11/28/09 < 187 Sw-i 11/29/09 < 186 Sw-1 11/30/09 < 165 SW-i 12/01/09 < 159 SW-1 12/02/09 < 188 Sw-i 12/03/09 < 187 Sw-i 12/04/09 < 192 SW-i 12/05/09 < 185 SW-i 12/06/09 < 172 SW-i 12/07/09 < 169 SW-i 12/08/09 < 164 Sw-i 12/09/09 < 193 Sw-i 12/10/09 < 161 Sw-i 12/11/09 < 162 Sw-i 12/12/09 < 159 Sw-i 12/13/09 < 154 Sw-i 12/14/09 < 164 Sw-i 12/15/09 < 160 Sw-i 12/16/09 < 168 Sw-i 12/17/09 < 170 Sw-i 12/18/09 < 177 Sw-i 12/18/09 < 166 Sw-i 12/19/09 < 168 Sw-i 12/20/09 < 163 Sw-i 12/21/09 < 167 Sw-i 12/22/09 < 162 Sw-i 12/23/09 < 162 Sw-i 12/24/09 < 157 Sw-i 12/25/09 < 157 Sw-i 12/26/09 < 157 SW-i 12/27/09 < 173 Sw-i 12/28/09 < 172 SW-i 12/29/09 < 173 SW-i 12/30/09 < 171 Sw-i 12/31/09 < 171 Sw-i 03/11/09 < 181 Sw-i 10/02/09 < 176 < 0.3 SW-2 03/09/09 < 191 SW-2 04/27/09 < 154 SW-2 04/28/09 < 156 SW-2 04/29/09 < 151 SW-2 05/05/09 < 197 SW-2 05/12/09 < 180 SW-2 05/19/09 < 179 SW-2 05/26/09 < 182 B-34 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 SW-2 06/02/09 < 168 SW-2 06/08/09 < 156 SW-2 06/13/09 < 182 SW-2 06/15/09 < 181 SW-2 06/22/09 < 158 SW-2 06/26/09 < 184 SW-2 06/27/09 < 178 SW-2 06/28/09 < 177 SW-2 06/29/09 < 172 SW-2 06/30/09 < 179 SW-2 07/01/09 < 179 SW-2 07/02/09 < 182 SW-2 07/03/09 < 187 SW-2 07/04/09 < 118 SW-2 07/05/09 < 115 SW-2 07/06/09 < 115 SW-2 07/07/09 < 112 SW-2 07/08/09 < 125 SW-2 07/09/09 < 121 SW-2 07/10/09 < 110 SW-2 07/11/09 < 176 SW-2 07/12/09 < 173 SW-2 07/13/09 < 165 SW-2 07/14/09 < 160 SW-2 07/15/09 < 168 SW-2 07/16/09 < 170 SW-2 07/17/09 < 181 SW-2 07/18/09 < 178 SW-2 07/19/09 < 183 SW-2 07/20/09 < 134 SW-2 07/21/09 < 130 SW-2 07/22/09 < 165 SW-2 07/23/09 < 160 SW-2 07/24/09 < 161 SW-2 07/25/09 < 161 SW-2 07/26/09 < 168 SW-2 07/27/09 < 123 SW-2 07/28/09 < 159 SW-2 07/29/09 < 165 SW-2 07/30/09 < 171 SW-2 07/31/09 < 179 SW-2 08/01/09 < 198 SW-2 08/02/09 < 164 SW-2 08/03/09 < 164 SW-2 08/04/09 < 181 B-35 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 SW-2 08/05/09 < 171 SW-2 08/06/09 < 174 SW-2 08/07/09 < 170 SW-2 08/08/09 < 168 SW-2 08/09/09 < 169 SW-2 08/10/09 < 161 SW-2 08/11/09 < 162 SW-2 08/12/09 < 156 SW-2 08/13/09 < 159 SW-2 08/14/09 < 182 SW-2 08/15/09 < 185 SW-2 08/16/09 < 186 SW-2 08/17/09 < 171 SW-2 08/18/09 < 168 SW-2 08/19/09 < 167 SW-2 08/20/09 < 194 SW-2 08/21/09 < 193 SW-2 08/22/09 < 180 SW-2 08/23/09 < 174 SW-2 08/24/09 < 159 SW-2 08/25/09 < 177 SW-2 08/26/09 < 182 SW-2 08/27/09 < 170 SW-2 08/28/09 < 183 SW-2 08/29/09 < 192 SW-2 08/30/09 < 182 SW-2 08/31/09 < 195 SW-2 09/01/09 < 175 SW-2 09/02/09 < 170 SW-2 09/03/09 < 167 SW-2 09/04/09 < 194 SW-2 09/05/09 < 187 SW-2 09/06/09 < 193 SW-2 09/07/09 < 180 SW-2 09/08/09 < 178 SW-2 09/09/09 < 176 SW-2 09/10/09 < 169 SW-2 09/11/09 < 169 SW-2 09/12/09 < 169 SW-2 09/13/09 < 193 SW-2 09/14/09 < 194 SW-2 09/15/09 < 192 SW-2 09/16/09 < 162 SW-2 09/17/09 < 173 SW-2 09/18/09 < 164 B-36 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION DATE 09/19/09 09/20/09 09/21/09 09/22/09 09/23/09 09/24/09 09/25/09 09/26/09 09/27/09 09/28/09 09/29/09 09/29/09 09/29/09 09/29/09 E 09/30/09 10/01/09 10/02/09 10/03/09 10/04/09 10/05/09 10/06/09 10/07/09 10/08/09 10/09/09 10/10/09 10/11/09 10/12/09 10/13/09 10/14/09 10/15/09 10/16/09 10/16/09 10/17/09 10/17/09 10/18/09 10/18/09 10/19/09 10/20/09 10/21/09 10/22/09 10/23/09 10/23/09 10/24/09 10/25/09 10/26/09 10/27/09 H-3< 145< 129< 131< 194< 136< 137< 142< 181< 177< 163< 168< 167< 165 IML QC < 154* 167* 172* 181* 149<144* 147* 145* 171* 168* 178* 180* 179* 176* 171* 172* 172* 169* 163.< 168* 161* 168* 169* 169* 172* 161* 178* 189* 189* 168< 179< 181< 179 SR-90< 0.4< 0.4 B-37 TABLE B-11.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION SITE DATE H-3 SR-90 SW-2 10/28/09 < 162 SW-2 10/29/09 < 165 SW-2 10/30/09 < 154 SW-2 10/31/09 < 177 SW-2 11/01/09 < 182 SW-2 11/02/09 < 183 SW-2 11/03/09 < 167 SW-2 11/04/09 < 161 SW-2 11/05/09 < 190 SW-2 11/06/09 < 186 SW-2 11/07/09 < 181 SW-2 11/08/09 < 182 SW-2 11/09/09 < 178 SW-2 11/10/09 < 181 SW-2 11/11/09 < 179 SW-2 11/12/09 < 174 SW-2 11/13/09 < 173 SW-2 11/14/09 < 169 SW-2 11/15/09 < 164 SW-2 11/16/09 < 157 SW-2 11/17/09 < 169 SW-2 11/18/09 < 162 SW-2 11/19/09 < 165 SW-2 11/20/09 < 162 SW-2 11/21/09 < 169 SW-2 11/22/09 < 170 SW-2 11/23/09 < 168 SW-2 11/24/09 < 163 SW-2 11/25/09 < 163 SW-2 11/26/09 < 190 SW-2 11/27/09 < 187 SW-2 11/28/09 < 192 SW-2 11/29/09 < 188 SW-2 11/30/09 < 158 SW-2 12/01/09 < 161 SW-2 12/02/09 < 186 SW-2 12/03/09 < 191 SW-2 12/04/09 < 183 SW-2 12/05/09 < 186 SW-2 12/06/09 < 162 SW-2 12/07/09 < 161 SW-2 12/08/09 < 164 SW-2 12/09/09 < 187 SW-2 12/10/09 < 158 SW-2 12/11/09 < 158 B-38 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-3 SW-3 COLLECTION DATE 12/12/09 12/13/09 12/14/09 12/15/09 12/16/09 12/17/09 12/18/09 12/18/09 12/19/09 12/20/09 12/21/09 12/22/09 12/23/09 12/24/09 12/25/09 12/26/09 12/27/09 12/28/09 12/29/09 12/30/09 12/31/09 03/10/09 09/29/09 H-3 156 169 171 163 165 168 169 181 169 164 163 161 162 166 166 174 171 171 170 167 167 186 176 SR-90< 0.6 B-39 TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD J MCD 0 MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD 05/05/09 05/12/09 05/19/09 05/26/09 06/02/09 06/08/09 06/15/09 06/22/09 06/26/09 06/27/09 06/28/09 06/29/09 06/30/09 07/01/09 07/02/09 07/03/09 07/04/09 07/05/09 07/06/09 07/07/09 07/08/09 07/09/09 07/10/09 07/11/09 07/12/09 07/13/09 07/14/09 07/15/09 07/16/09 07/17/09 07/18/09 07/19/09 07/20/09 07/21/09<1<1<3<5<5<1<2<2<4<3<2<3<3<3<3<2<2<4<5<5<2<2<2<4<3<3<3<4<3<3<4<5<9< 12< 11<4<5<5<8<6<6<8< 10<7<8<1 <3<1 <3<4 <6<2 <11<5 <13<1 <3<2 <3<2 <4<4 <7-<2 <5<2 <5<3 <6<3 <7<3 <6<3 <6<2<2<4<6<7<2<2<2<4<3<3<3<4<3<4<3<4<6<9<8<3<3<4<6<5<5<6<7<6<6< 31< 37< 23< 18< 10< 26< 17<11<15<34< 25< 31<34< 25<38<1<1<3<5<6<1<1<2<3<2<2<3<3<2<3<1<2<3<5<5<1<2<2<3<3<2<3<3<3<3< 33< 39< 39< 34< 27< 29< 23<19< 29< 39< 36<43< 48< 40< 49<3 <3 <7 <3 <5<3 <5 <29<2 <3 <41<3<2<2<3<3<3<2<2<3<3<3<3<3<2<3<3<2<2<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<8<7<7<9<8<7<6<7<8<7<7<7<8<7<7<7<7<7<2 <5<3 <5<3 <5<3 <6<3 <6<3 <6<2 <5<2 <5<3 <6<3 <6<3 <5<3 <7<3 <6<3 <6<3 <6<3 <5<3 <5<2 <5<3<3<3<4<4<3<3<3<4<3<3<4<4<3<3<3<3<3<5<5<5<6<6<6<5<5<6<5<6<6<6<5<6<5<6<5< 30< 25< 29< 32< 35< 22< 18< 32< 36< 21< 21< 22< 21< 18< 17< 23< 21< 23<2<2<2<3<3<2<2<2<2<2<2<3<3<2<3<2<2<2<2<2<3<3<3<3.< 2<3<3<3<3<3<3<3<3<3<3<2< 42< 36< 37< 45< 47< 35< 29< 42* 52< 33< 33< 37< 39* 30< 31< 35< 34< 34< 11<13<14<12<8<9<7<6<10<13<11< 13< 14<15< 14<15< 11< 11< 15< 12< 15<13<8<14< 15<13<10<11< 11< 10<9< 11< 10< 11 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD COLLECTION Mn-54 PERIOD 07/22/09 < 3 07/23/09 < 3 07/24/09 < 2 07/25/09 < 2 07/26/09 < 2 07/27/09 < 2 07/28/09 < 3 07/29/09 < 3 07/30/09 < 1 07/31/09 < 1 08/01/09 < 1 08/02/09 < 1 08/03/09 < 1 08/04/09 < 1 08/05/09 < 2 08/06/09 < 1 08/07/09 < 1 08/08/09 < 1 08/09/09 < 1 08/10/09 < 2 08/11/09 < 1 08/1 2/09 < 1 08/13/09 < 2 08/14/09 < 2 08/15/09 < 2 08/16/09 < 2 08/17/09 < 2 08/18/09 < 2 08/19/09 < 2 08/20/09 < 2 08/21/09 < 2 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140<4<4<3<3<3<3<2<3<1<1<2<2<2<1<2<2<1<2<2<2<2<2<3<2<2<2<2<2<2<2<4<9<8<6<6<6<6<6<8<3<3<4<4<5<2<5<5<3<4<4<5<4<4<6<5<5<6<5<6<4<6<8<3<3<2<2<2<3<2<4<1<1<1<1<1<1.< 2<1<1<1<1<2<1<1<2<2<2<2<2<2<2<1<2<6<7<5<5<5<5<5<7<2<2<3<2<3<2<4<3<2<3<3<3<3<3<4<4<4<4<4<4<3<3<5<4<4<3<3<3<3<3<4<1<2<1<2<2<1<2<2<1<2<2<2<2<2<3<2<2<3<2<2< 2<3<4<7<6<5<4<5<5<5<6<2<3<3<3<4<2<4<<3<2<3<3<4<3<3<4<4<4<5<4<4<4<4<7< 24< 26< 19<12< 11< 10<9<11>1 0000>1 0000>1 0000< 68< 64< 37< 35< 33< 20< 40<34<35< 26< 31< 35< 45< 47< 52< 43< 46<34< 152< 241<3<3<2<2<2<2<2<3<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<2<2<2<2<1<1<2<3<3<2<2<2<2<3<3<1<1<1<1<1<1<2<1<1<1<2<2<2<1<2<2<2<2<2<2<1<2<2< 39< 40< 29< 22< 22< 21< 19* 25< 38< 55< 52< 50< 50< 28< 39< 37< 22< 41< 38< 35< 31< 32< 47< 48< 46* 52< 46< 46< 38< 99< 137< 13<12<9<7<8<7<5<8< 11<15< 15< 13< 14<8< 14< 11<7<8<10< 11<9<11<13<13< 15< 12< 14< 13< 10< 24< 41 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE ,p ro MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD COLLECTION Mn-54 PERIOD 08/22/09 < 2 08/23/09 < 1 08/24/09 < 1 08/25/09 < 2 08/26/09 < 1 08/27/09 < 1 08/28/09 < 1 08/29/09 < 1 08/30/09 < 2 08/31/09 < 2 09/01/09 < 1 09/02/09 < 1 09/03/09 < 1 09/04/09 < 2 09/05/09 < 2 09/06/09 < 2 09/07/09 < 1 09/08/09 < 1 09/09/09 < 1 09/10/09 < 2 09/11/09 < 2 09/12/09 < 3 09/13/09 < 3 09/14/09 < 3 09/15/09 < 3 09/16/09 < 2 09/17/09 < 1 09/18/09 < 1 09/19/09 < 2 09/20/09 < 1 09/21/09 < 2<3<2<2<3<1<2<1<2<2<2<1<1<1<2<2<2<1<1<1<3<3<3<4<4<3<2<1<2<2<1<2<9<5<5<7<3<4<4<4<7<7<4<3<4<5<5<5<3<3<3<7<7<8<8<8<8<5<4<3<5<3<4<2<1<1<2<1<1<1<1<2<2<1<1<1< 1<2<2<1<1<1<3<2<3<3<3<3<2<1<1<1<1<1<5<3<3<4<2<3<2<2<3<3<2<2<2<3<3<4<2<2<2<5<5<6<6<6<6<4<3<2<3<2<3<3<2<2<3<2<2<1<:2<2<2<2<1<2<2<:2<3<1<1<1<:3<3<3<4<4<4< 2<2<2<2<2<:2<5<3<3<5<3<4<2<3<4<4<3<2<3<4<4<4<2<3<2<5<5<6<6<6<6<4<3<3<3<3<3< 195< 104< 116< 138>10000>10000>10000< 52< 83< 75< 56< 44< 56< 33< 37< 39< 25< 29< 20< 31< 28< 30< 26< 24< 24< 56< 39<38< 37< 26< 31<2<1<1<2<1<1<1<1<1<1<1<1<1<1<2<2<1<1<1<2<2<2<3<3<3<1<1<1<2<1<1<2<1<1<2<1<2<1<1<2<2<1<1<1<1<2<2<1<1<1<2<2<3<3<3<3<1<1<1<2<1< 2< 140< 67< 70< 94< 37< 50< 41< 43< 56< 53<44< 31< 45< 37< 38< 40< 25< 28< 19< 41< 37< 42< 38< 38< 40< 52< 35< 34<44< 27< 34< 42< 19< 22< 34<14< 13< 11< 12< 18< 17< 12< 10<12< 12<11< 13<7<8<6< 13< 11<14<12< 12< 11*13< 12< 10<8<8<9 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE w MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD COLLECTION Mn-54 PERIOD 09/22/09 < 1 09/23/09 < 1 09/24/09 < 1 09/25/09 < 1 09/26/09 < 1 09/27/09 < 1 09/28/09 < 1 09/29/09 < 1 09/30/09 < 1 10/01/09 < 1 10/02/09 < 1 10/03/09 < 1 10/04/09 < 1 10/05/09 < 1 10/06/09 < 1 10/07/09 < 1 10/08/09 < 1 10/09/09 < 1 10/10/09 < 1 10/11/09 < 1 10/12/09 < 1 10/13/09 < 1 10/14/09 < 1 10/15/09 < 1 10/16/09 < 1 10/16/09 < 1 10/17/09 < 1 10/17/09 < 1 10/18/09 < 1 10/18/09 < 1 10/19/09 < 1<1<1<1<1<2<1<1<2<2<1<1<1<1<2<2<2<2<2<1<2<1<2<2<2<1<1<1<2<1<2<1<4<4<3<3<4<3<3<5<5<3<4<4<4<6<5<4<4<5<4<4<3<5<4<4<3<3<3<6<3<7<4<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<1<2<1<1<1<2<1<2<1<1<1<1<1<1<1<2<2<2<2<3<2<2<2<3<2<2<2<2<3<2<2<2<3<2<2<2<4<3<3<2<2<2<3<1<3<2<1<1<1<1<2<1<1<2<2<1<2<1<2<2<2<2<2<2<2<2<1<2<2<2<1<1<1<2<1<2<1<3<3<2<2<3<2<2<3<3<2<3<2<2<4<4<3<3<4<3<3<2<4<3<3<2<2<2<3<2<4<3< 23< 25< 17< 18< 21< 16< 143< 246< 250< 162< 229< 226< 514< 797< 662< 47< 56< 66< 175< 141< 119< 48< 37< 32< 50< 396< 47< 629< 44< 564< 83< 27< 25< 18< 18< 29< 22< 62< 98< 134< 64< 95< 93< 157< 228< 190< 43< 46< 53< 86< 74< 60< 48< 34< 35< 37< 121< 34< 202< 32< 179< 56<9<8<5<6<8<<7< 24< 32< 36< 22< 30< 23< 47< 59< 63< 14< 13<16* 28< 20<18< 15* 12<9< 11< 45< 10< 61< 10< 48< 15 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE ,w MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD COLLECTION Mn-54 PERIOD 10120/09 < 1 10/21/09 < 1 10/22/09 < 1 10/23/09 < 1 10/24/09 < 1 10/25/09 < 1 10/26/09 < 1 10/27/09 < 1 10/28/09 < 1 10/29/09 < 1 10/30/09 < 1 10/31/09 < 1 11/01/09 < 1 11/02/09 < 1 11/03/09 < 1 11/04/09 < 1 11/05/09 < 1 11/06/09 < 1 11/07/09 < 1 11/08/09 < 2 11/09/09 < 1 11/10/09 < 1 11/11/09 < 1 11/12/09 < 2 11/13/09 < 1 11/14/09 < 1 11/15/09 < 1 11/16/09 < 1 11/17/09 < 1 11/18/09 < 1 11/19/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95<1<1<1<1<2<2<2<1<1<1<1<1<1<2<1<1<1<2<1<2<1<1<1<2<1<1<1<1<2<2<1<3<3<3<2<4<5<5<5<4<4<4<4<3<4<4<3<3<3<4<4<3<4<3<4<3<3<3<3<4<5<4<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<2<1<1<1<1<1<1<1<2<2<2<2<2<2<3<2<2<2<2<2<1<2<2<2<2<3<2<3<2<2<2<2<2<2<2<2<2<2<2<2<1<1<1<2<2<2<2<2<2<1<2<1<2<2<1<1<2<2<2<1<1<1<2<2<1<1<1<2<2<2<3<2<2<2<3<3<3<3<3<3<2<3<2<3<3<2<2<2<3<4<2<2<3<3<3<3<2<2<2<3<2< 75< 71< 48< 39< 57< 374< 323< 318< 67< 61< 78< 151< 114< 129< 107< 79< 71< 40< 44< 67< 79< 68< 74< 55< 29< 102< 79< 68< 102< 159< 131<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1< 49< 48< 34< 31< 46< 127< 131< 122< 49< 51< 54< 78< 58< 74< 55< 50< 50< 37< 39< 59< 48< 50< 46< 44< 30< 57< 50<44< 64< 79< 72 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-Ih.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE 41 MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD COLLECTION Mn-54 PERIOD 11/20/09 < 1 11/21/09 < 1 11/22/09 < 1 11/23/09 < 1 11/24/09 < 1 11/25/09 < 1 11/26/09 < 1 11/27/09 < 1 11/28/09 < 1 11/29/09 < 1 11/30/09 < 1 12/01/09 < 1 12/02/09 < 1 12/03/09 < 1 12/04/09 < 1 12/05/09 < 1 12/06/09 < 1 12/07/09 < 1 12/08/09 < 1 12/09/09 < 1 12/10/09 < 1 12/11/09 < 1 12/12/09 < 1 12/13/09 < 1 12/14/09 < 1 12/15/09 < 1 12/16/09 < 1 12/17/09 < 1 12/18/09 < 1 12/18/09 < 3 12/19/09 < 1<2<1<2<2<1<1<2<2<2<2<2<2<2<1<1<1<1<1<1<2<2<2< 1<2<1<1<2<1<2<3<2<5<4<4<4<3<3<5<5<6<6<5<5<4<4<4<3<3<3<2<6<5<5<4<4<4<3<3<4<4<8<4<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<3<1<3<3<2<3<2<2<3<3<3<3<2<2<2<2<2<2<2<2<2<3<3<3<2<2<3<2<2<2<3<7<2<2<2<2<2<1<1<2<2<2<2<2<2.<2<1<2<1<1<1<1<2<2<2<2<2<2<1<2<2<2<4<2<3<3<3<3<2<2<3<3<3<4<3<3<3<2<3<2<2<2<2<4<3<4<3<3<3<2<2<3<3<6<3< 191< 75< 74< 72<35< 40< 186< 160< 290< 369< 993< 877< 137< 138< 55< 53< 13< 15< 12< 161< 141< 111< 109< 175* 133< 94< 135< 98< 129< 18< 114<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<3<1< 87< 57< 56< 55< 32< 39< 88< 85< 130< 137< 259< 245< 71< 72< 39< 38< 17< 18< 16< 94< 80< 69< 64< 85< 70* 50< 73< 66< 78< 32< 67< 26< 17< 14< 20<10< 12* 26* 26< 40< 35< 84< 70< 22< 20<14< 12<6<6<5< 23< 21< 16< 18< 28< 23< 16< 25< 22< 22< 11< 22 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 i 0)MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 12/20/09 12/21/09 12/22/09 12/23/09 12/24/09 12/25109 12/26/09 12/27/09 12/28/09 12/29/09 12/30/09 12/31/09 05/05/09 05/12/09 05/19/09 05/26/09 06/02/09 06/08/09 06/15/09 06/22/09 06/26/09 06/27/09 06/28/09 06/29/09 06/30/09 07/01/09 07/02/09 07/03/09 07/04/09 07/05/09 07/06/09 07/07/09<1<-1<2<1<1<1<1<1<1<1<1<1<1<2<3<4<5<1<1<2<4<3<3<3<2<3<2<3<2<2<2<2<1<1<2<2<2<2<1<2<1<1<2<2<2<2<4<5<5<1<1<2<4<3<3<3<3<3<3<3<3<3<3<3<4<3<6<4<3<4<3<4<3<4<5<4<4<6<9< 11< 12<3<3<4<8<7<9<7<7<7<7<6<7<6<6<6<1<1.< 2<1<1<1<1<1<1<1<2<1<1<2<4<5<5<1<1<2<3<3<3<3<3<3<3<2<3<3<2<3<2<2<4<3<2<2<2<2<2<2<3<2<3<4<7< 11<.12<2<3<4<8<6<7<5<5<6<5<5<5<5<4<6<2<1<3<2<2<2<1<2<1<2<2<2<2<2<4<5<5<1<2<2<4<3<4<3<3<4<3<3<3<3<3<3<3<2<4<4<2<3<2<3<2<3<3<4<3<4<7<8< 10<2<3<4<7<6<7<5<5<6<5<4<6<6<5<5< 132<77< 122<85< 78< 70< 63< 79< 65< 60< 86< 65< 31< 39< 23< 16< 10< 18< 14< 12< 17< 39<34< 28< 21< 30< 21< 22< 25< 29< 27< 23<1<1<2<1<1<1<1<1<1<1<1<1<1<1<3<5<5<1<1<2<3<2<3<2<2<3<2<2<2<2<2<2<1<1<2<1<1<1<1<1<1<1<1<1<1<2<4<5<5<1<1<2<3<3<3<3<2<3<2<3<3<2<2<2< 70< 51< 86< 63< 45< 52< 39< 53< 50< 43< 57< 47< 31< 41< 39< 37< 26< 20< 19< 19< 32< 52< 43< 38< 32< 42< 31< 35< 38< 42< 38< 35< 20< 16< 27< 14< 16< 14< 10< 19< 17< 16< 17< 16< 10< 15< 12< 12<8<6<6<6< 11< 15<14< 15< 11< 14< 12< 11< 13< 13< 12< 13 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs- 134 Cs- 137 Ba-140 La-140 PERIOD SW-1 SW-i SW-1 SW-1 SW-i SW-1 SW-i SW-i SW-i SW-i SW-i SW-1 SW-1 sw-1-4 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-i 07/08/09 07/09/09 07/10/09 07/11/09 07/12/09 07/13/09 07/14/09 07/15/09 07/16/09 07/17/09 07/18/09 07/19/09 07/20/09 07/21/09 07/22/09 07/23/09 07/24/09 07/25/09 07/26/09 07/27/09 07/28/09 07/29/09 07/30/09 07/31/09 08/01/09 08/02/09 08/03/09 08/04/09 08/05/09 08/06/09<3<3<3<2<2<2<2<2<3<4<3<2<2<2<3<3<3<2<2<3<3<4<1<1<1<1<1<1<2<1<3<3<3<3<2<3<2<2<3<5<4<3<2<2<3<3<4<2<2<3<3<4<1<1<1<2<2<1<2<2<7<8<7<7<6<7<5<6<6< 10<9<7<6<5<8<8<8<6<5<7<6<10<4<3<4<5<4<3<5<4<3<3<3<3<2<3<2<2<2<4<4<2<2<2<4<3<3<3<2<3<3<4<1<1<1<1<1<1<2<1<5<6<5<5<5<4<4<5<5<9<7<5<5<4<6<7<7<5<4<6<6<8<2<2<2<3<3<2<4<3<3<4<3<3<3<3<2<3<3<5<4<3<3.<3<4<4<4<2<2<3<3<5<2<1<1<2<2<1<2<2<5<6<5<5<5<5<4<4<5<8<7<5<4<4<6<6<7<5<4<6<5<8<3<2<3<3<3<2<4<3< 31< 26< 20< 31< 29< 21< 17< 22< 17< 27< 20< 20< 19< 16< 24< 25< 26< 11<9< 13<7< 19>10000>10000>10000<77< 65< 39< 38< 29<3 <3 <44<3 <3 <40<2 <3 <34<2 <3 <42<2 <2 <38<2 <2 <32<2 <2 <26<2 <2 <33<2 <2 <27<4 <4 <47<3 <4 <34<2 <2 <30<2 <2 <29<2 <2 <26<2 <3 <40<3 <3 <40<3 <3 <41<2 <2 <20<2 <2 <19<3 <3 <25<2 <3 <19<4 <4 <36<1 <1 <50<1 <1 <43<1 <1 <47<1 <1 <57<1 <2 <49<1 <1 <35<1 <2 <41<1 <1 <30<11< 14< 10< 15< 14<9<9< 10<8< 15< 12< 10<9<8< 14< 14< 13<7<5<8<6< 12< 15< 12< 15< 13< 12<11< 13< 10 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-Ih.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE cO SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 COLLECTION Mn-54 PERIOD 08/07/09 < 1 08/08/09 < 1 08/09/09 < 1 08/10/09 < 2 08/11/09 < 2 08/12/09 < 2 08/13/09 < 2 08/14/09 < 1 08/15/09 < 2 08/16/09 < 2 08/17/09 < 1 08/18/09 < 2 08/19/09 < 1 08/20/09 < 2 08/21/09 < 2 08/22/09 < 2 08/23/09 < 2 08/24/09 < 1 08/25/09 < 2 08/26/09 < 1 08/27/09 < 1 08/28/09 < 1 08/29/09 < 1 08/30/09 < 2 08/31/09 < 1 09/01/09 < 1 09/02/09 < 1 09/03/09 < 1 09/04/09 < 1 09/05/09 < 1 09/06/09 < 2<1<2<2<2<2<2<3<2<2<2<2<2<2<3<3<3<2<2<3<2<2<2<1<2<2<1<1<1<1<2<2<4<5<4<6<6<4<6<4<6<6<5<5<4<7<8<9<7<5<6<5<4<5<3<4<4<2<3<3<3<4<1<2<1<2<2<2<2<1<2<2<1<2<1<2<2<2<2<2<2<1<1<2<1<1<1<1<1<1<1<1<2<3<3<4<4<4<4<3<4<4<3<4<3<4<4<5<3<3<4<3<3<2<2<3<3<1<2<2<3<3<2<2<2<2<2<2<2<2<3<2<2<2<2<3<3<3<2<2<3<2<2<1<1<2<2<1<1<2<2<2<3<3<3<4<4<4<.4<3<4<4<4<4<3<5<5<6<4<4<4<3<3<3<2<3<3<2<2<3<3<3< 24< 32< 28< 36< 37< 29< 37< 40< 50< 50< 36< 40< 31< 166< 181< 189< 145< 119< 136>10000< 66>10000< 48< 69< 51< 32< 40< 47< 29< 32<1<1<1<1<2<2<2<1<2<2<1<2<1<2<2<2<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<2<2<1<2<2<1<2<2<2<2<2<2<1<2<1<1<1<1<1<1<1<1<1<1<2< 27< 37< 29< 43< 39< 32< 44< 39< 51< 51< 38< 40< 37< 101< 105< 122< 91< 77< 90< 58< 54< 39< 39< 59< 47< 29< 32< 38< 31< 32<8< 13<8< 15<13< 13< 13< 13< 14< 13<11<14<9< 29< 35< 31< 27< 25< 24< 14< 16< 13<12< 16< 14<8<8<14<9<9< 13 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140<6 <2 <4 <3 <4 <36<2 <2 <43 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE CD SW-1 SW-1 SW-I SW-1 SW-1 SW-1 SW-1 SW-l SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 COLLECTION Mn-54 PERIOD 09/07/09 < 1 09/08/09 < 1 09/09/09 < 1 09/10/09 < 2 09/11/09 < 3 09/12/09 < 2 09/13/09 < 3 09/14/09 < 3 09/15/09 < 3 09/16/09 < 2 09/17/09 < 2 09/18/09 < 1 09/19/09 < 2 09/20/09 < 1 09/21/09 < 1 09/22/09 < 1 09/23/09 < 1 09/24/09 < 1 09/25/09 < 1 09/26/09 < 1 09/27/09 < 1 09/28/09 < 1 09/29/09 < 1 09/30/09 < 1 10/01/09 < 1 10/02/09 < 5 10/02/09 < 1 10/03/09 < 1 10/04/09 < 1 10/05/09 < 1 10/06/09 < 1<1<1<1<2<3<2<4<4<3<2<2<2<2<2<2<1<2<1<2<2<1<1<1<1<2<5<1<1<2<2<2<3<3<3<5<8<5<9<9<7<5<5<4<5<4<4<3<4<3<4<3<3<5<4<4<5< 10<4<4<6<7<6<1<1<1<2<3<2<4<3<2<1<2<1<2<1<1<1<2<1<1<1<1<1<1<1<1<5<1<1<1<1<1<2<2<2<4<5<4<7<6<5<3<4<3<3<3<4<2<3<3<3<3<2<2<2<2<2<9<2<2<2<3<2<1<1<1<2<3<2<4<4<3<2<2<2<2<2<2<1<2<2<2<2<1<2<2<2<2<5<2<1<2<3<2<2<2<2<4<6<5<7<7<5<4<4<3<3<3<3<2<4<2<3<3<2<3<2<3<3<8<3<3<3<4<4< 25< 22< 21<22< 27< 24< 25< 24< 19< 51< 52< 43< 42<34<35< 18<22< 18< 25< 21< 17< 193< 189< 215<222<9< 195< 185< 634< 946< 689<1<1<1<2<2<2<3<3<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<4<1<1<1<1<1<1<1<1<2<3<2<4<3<3<2<1<1<2<1<2<1<2<1<1<1<1<1<1<1<1<5<1<1<1<1<1< 25< 22< 22< 27< 38< 33< 40< 39< 31< 46< 49< 40<44< 37< 38< 23< 29< 20< 30< 24< 22< 91< 86< 92< 111< 24< 102<77< 179< 274< 202<6<6<7<9< 13<9< 12< 13< 11< 17< 13< 12< 14< 11< 11<7<9<6<8<8<5< 26< 25< 31< 32<8< 29< 22< 57< 78< 67 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE 01 0 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-1 Sw-1 SW-1 SW-1 SW-1 Sw-1 SW-1 sw-1 Sw-1 Sw-1 Sw-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-1 Sw-1 Sw-i Sw-i SW-1 SW-1 SW-1 SW-1 COLLECTION Mn-54 PERIOD 10/07/09 < 1 10/08/09 < 2 10/09/09 < 2 10/10/09 < 1 10/11/09 < 1 10/12/09 < 1 10/13/09 < 1 10/14/09 < 1 10/15/09 < 2 10/16/09 < 1 10/16/09 < 1 10/17/09 < 1 10/17/09 < 1 10/18/09 < 1 10/18/09 < 1 10/19/09 < 1 10/20/09 < 1 10/21/09 < 1 10/22/09 < 1 10/23/09 < 1 10/24/09 < 1 10/25/09 < 1 10/26/09 < 1 10/27/09 < 1 10/28/09 < 1 10/29/09 < 1 10/30/09 < 1 10/31/09 < 1 11/01/09 < 1 11/02/09 < 1 11/03/09 < 1<2<2<2<2<1<1<1<2<2<1<2<1<2<1<2<1<1<1<1<1<2<2<1<1<1<2<2<2<2<1<2<4<6<5<5<3<3<3<4<5<3<4<3<5<3<5<3<5<3<2<3<4<6<4<4<3<4<4<4<5<4<6<1<2<1<1<1<1<1<2<2<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<3<3<3<3<2<2<2<3<3<2<2<2<3<2<3<1<2<2<1<2<3<3<2<2<2<2<3<2<3<2<2<2<2<2<2<1<1<1<2<2<1<2<1<2<1<2<1<2<2<1<1<2<2<2<2<1<2<2<2<2<1<2<3<4<4<3<3<2<3<3<4<2<3<2<4<3<3<2<3<2<2<2<3<4<3<2<3<3<3<3<4<2<3< 58< 62< 62< 190< 129< 105< 32< 44< 44< 53< 435< 56< 574< 58< 462< 57< 90< 60< 38< 38< 51< 406< 249< 233< 62< 63< 67<133< 171< 113< 846<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<1<1<1<1<2<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1< 54< 60< 57< 89< 67< 61< 31< 43< 44< 40< 142< 42< 199< 40< 174< 38< 62< 46< 29< 34< 48< 154< 104< 91< 42< 51< 54< 76< 93< 70< 238< 14< 16< 17< 27< 24<18<9< 16< 14<11< 41<9< 68< 12< 44< 13< 20< 10< 10<9< 14< 39< 32< 32< 11< 16< 16< 19< 28< 18< 69 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE 0.n SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-1 Sw-i SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-i SW-1 SW-1 COLLECTION Mn-54 PERIOD 11/04/09 < 1 11/05/09 < 1 11/06/09 < 1 11/07/09 < 1 11/08/09 < 2 11/09/09 < 1 11/10/09 < 1 11/11/09 < 1 11/12/09 < 1 11/13/09 < 1 11/14/09 < 1 11/15/09 < 1 11/16/09 < 1 11/17/09*

< 1 11/18/09 < 1 11/19/09 < 1 11/20/09 < 1 11/21/09 < 1 11/22/09 < 1 11/23/09 < 1 11/25/09 < 1 11/26/09 < 1 11/27/09 < 1 11/28/09 < 1 11/29/09 < 2 11/30/09 < 1 12/01/09 < 1 12/02/09 < 1 12/03/09 < 1 12/04/09 < 2 12/05/09 < 1<1<1<2<1<2<2<1<1<1<1<1<1<1<1<2<2<1<2<1<1<1<2<2<2<2<2<2<2<2<2<1<4<4<4<3<5<5<3<3<4<3<2<3<3<3<5<5<4<5<4<3<2<5<5<5<6<6<4<5<5<5<4<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<2<2<3<2<3<3<1<2<3<2<2<2<2<2<3<3<2<3<2<2<1<2<3<3<3<2<2<3<2<3<2<2<1<2<1<2<2<1<1<2<2<1<1<1<1<2<2<2<2<2<1<1<2<2<2<2<2<2<2<2<2<2<3<2<3<2<4<4<2<2<3<2<2<2<2<2<3<3<3<3<2<2<2<3<3<4<3<3<3<3<3<4<3< 87< 76< 53<37< 63< 302< 65< 52<38< 31< 31< 79< 75< 81< 174< 163< 129< 83< 67< 47< 30< 187< 196< 157< 283< 965< 860< 113< 122<83< 50<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1< 57* 52< 47< 29* 56* 148< 43* 32< 35< 34< 26< 47<.48< 47< 90< 76< 73< 64< 46< 33< 26< 93< 99< 87< 145< 224< 240< 72< 82< 61< 37<18<14<12<10* 16< 22<11<12<10<8<8<16<14*15< 23< 32< 25< 21< 14<10<8< 27< 28< 24< 46< 79< 46< 24< 29< 21< 12 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE OJ m Ii SW-i SW-1 SW-i SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-i SW-1 Sw-i Sw-i SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 sw-i SW-1 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 12/06/09 < 1 12107/09 < 1 12/08/09 < 1 12/09/09 < 1 12/10/09 < 1 12/11/09 < 1 12/12/09 < 1 12/13/09 < 1 12/14/09 < 1 12/15/09 < 1 12/16/09 < 1 12/17/09 < 1 12/18/09 < 2 12/18/09 < 3 12/19/09 < 1 12/20/09 < 1 12/21/09 < 1 12/22/09 < 2 12/23/09 < 1 12/24/09 < 1 12/25/09 < 1 12/26/09 < 1 12/27/09 < 1 12/28/09 < 1 12/29/09 < 1 12/30/09 < 1 12/31/09 < 1 05/05/09 < 1 05/12/09 < 1 05/19/09 < 4 05/26/09 < 4<1<1<1<1<1<2<2<1<2<2<2<1<2<4<1<1<1<2<2<1<1<1<2<2<1<1<2<1<1<4<4<2<2<3<4<3<6<5<3<5<4<4<5<6<9<4<4<3<5<4<4<3<3<4<4<4<3<4<4<3<10<11<1<1<1<1<1<2<1<1<1<1<1<1<1<4<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<4<4<2<2<2<2<2<3<3<2<2<2<2<2<3<8<2<2<2<3<3<2<2<2<2<3<2<2<3<2<2<8<9<1<1<1<2<2<2<2<1<2<2<2<2<3<4<2<1<1<2<2<1<1<1<2<2<2<1<2<2<1<5<5<2<2<2<3<2<4<3<2<3<3<3<3<4<7<3<3<2<4<4<3<3<2<3<2<3<2<3<3<3<8<7 11 11 12 105 87 132 114 116 160 135 139 125 168 20 123 106 74 90 85 87 70 52 92 73 64 45 79 28 31 32 15<1<1<1<1<1<1<1<1<1<1<1<1<1<3<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<3<4<1<1<1<1<1<1<1<1<1<1<1<1<2<3<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<4<4<15<17<15< 63* 51< 79< 73< 62< 76< 67< 76< 78< 96< 34< 62< 60< 43< 65< 62< 59< 48< 38< 71< 50< 46< 35* 50< 29< 28< 55< 34<4<5<6< 19<15< 18< 23< 19< 21< 19< 21< 22< 29< 12< 22* 14< 15< 18< 18<14<14<11< 19<14<14<6< 16<10<8< 13<13 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 ,?' SW-2 lSW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 06/02/09 06/08/09 06/15/09 06/22/09 06/26/09 06/27/09 06/28/09 06/29/09 06/30/09 07/01/09 07/02/09 07/03/09 07/04/09 07/05/09 07/06/09 07/07/09 07/08/09 07/09/09 07/10/09 07/11/09 07/12/09 07/13/09 07/14/09 07/15/09 07/16/09 07/17/09 07/18/09 07/19/09 07/20/09 07/21/09 07/22/09<6<1<1<2<3<2<3<3<3<2<3<3<3<3<2<2<2<3<3<3<3<2<2<2<3<3<3<2<2<3<3<4 <11<2 <4<2 <4<2 <5<4 <8<3 <6<3 <7<3 <8<4 <8<3 <7<3 <7<3 <7<4 <7<3 <8<2 <6<3 <7<3 <6<3 <5<3 <7<3 <7<3 <8<2 <5<2 <6<3 <7<3 <6<4 <8<3 <6<2 <5<2 <6<4 <10<4 <8<5 <12<.1 < 2<1 <3<2 <4<3 <7<3 <5<2 <5<3 <6<3 <7<2 <5<3 <6<2 <5<3 <5<3 <6<2 <5<3 <5<2 <4<2 <5<3 <6<2 <5<4 <5<3 <4<2 <5<3 <5<3 <5<4 <6<3 <5<2 <4<2 <4<3 <8<3 <6<5<2<2<2<4<3<3<3<4<3<3<3<3<3<3<3<3<3<3<3<3<2<3<3<3<3<3<2<3<4<10<3<3<4<6<5<6<6<6<6<6<5<6<5<5<6<5<5<5<6<5<4<5<5<5<6<6<4<4<8<8< 23< 17<10< 17< 28< 25< 30< 39< 31< 27< 30< 33< 29< 26< 28< 29< 18< 24< 41< 32< 17< 17< 20< 17< 22< 18< 17< 18<33<5<1<1<2<3<2<2<3<3<3<2<2<2<2<2<2<2<2<2<2<3<2<2<2<3<3<3<2<2<3<6<1<2<2<3<2<2<3<3<3<3<2<3<3<2<2<2<3<2<3<3<2<2<3<3<3<3<2<2<3< 23< 26< 23*18< 33< 38< 39< 42< 49< 43< 43< 39< 45< 43< 34< 42< 38< 32< 37< 48< 41< 26* 27* 31* 29< 35* 28< 25< 27* 50<7<7<7<6<9<12<8<14<15<12<14<13* 14* 12*13<11<10<8<8<15<14<9<9<10.<9<13<9<8<9< 15< 14< 4 < 6 < 27 < 3 < 3 < 39 BOLDED VALUES INDICATE THE LLD WAS NOT MET a TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE ,T 01 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 07/23/09 < 3 07/24/09 < 4 07/25/09 < 2 07/26/09 < 2 07/27/09 < 2 07/28/09 < 3 07/29/09 < 4 07/30/09 < 1 07/31/09 < 1 08/01/09 < 1 08/02/09 < 1 08/03/09 < 1 08/04/09 < 1 08/05/09 < 1 08/06/09 < 1 08/07/09 < 2 08/08/09 < 2 08/09/09 < 2 08/10/09 < 2 08/11/09 < 2 08/12/09 < 1 08/13/09 < 2 08/14/09 < 2 08/15/09 < 1 08/16/09 < 2 08/17/09 < 2 08/18/09 < 2 08/19/09 < 2 08/20/09 < 2 08/21/09 < 2 08/22/09 < 2 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95<3<4<3<3<2<3<4<1<2<1<2<2<1<2<2<2<2<2<2<2<2<2<2<2<2<2<2<2<3<2<2<8< 10<6<6<5<6<9<4<5<3<4<4<3<5<5<5< 4<4<5<5<5<6<6<4<5<5<6<6<7<6<8<3<4<3<2<2<3<4<1<1<1<1<1<1<2<1<2<1<1<1<2<2<3<2<1<2<2<2<2<1<2<2<5<8<5<5<4<6<9<2<3<2<3<3<2< 3.<3<3<3<3<3<4<3<4<4<3<3<3<4<4<4<4<4<3<5<3<3<2<3<5<1<2<1<2<2<1<2<2<2<2<2<2<2<2<2<3<2<2<2<2<3<3<3<3<6<7<5<5<4<6<8<2<3<3<3<3<2<3<3<4<3<3<4<3<3<4<4<4<4<4<4<4<5<4<5< 24< 31<12<14<10<9<15>10000>10000>10000< 58< 63< 41< 33< 33<34<34< 31<33<34< 27<34< 56< 41< 40< 42< 42<44< 186< 134< 158<3<4<2<2<2<2<4<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<1<2<2<2<2<2<1<2<3<4<2<3<2<3<4<1<1<1<1<1<1<1<1<2<2<1<1<2<1<2<2<2<2<2<2<2<2<2<2< 37* 48* 21< 25<19<19* 32< 48< 59<44* 50* 52< 34< 33< 35< 37< 35< 30< 38< 37* 31< 39< 54* 38< 41< 43< 46< 44< 112< 85< 109<11<14<6<7<6<6<10<15<14<13<14< 14<10<12<11*12<12<10<15<12<10*13<13*12<9<15<11< 13< 42< 28< 31 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE T 01 oL SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 08/23/09 < 1 08/24/09 < 1 08/25/09 < 2 08/26/09 < 1 08/27/09 < 1 08/28/09 < 1 08/29/09 < 1 08/30/09 < 1 08/31/09 < 1 09/01/09 < 1 09/02/09 < 1 09/03/09 < 1 09/04/09 < 2 09/05/09 < 1 09/06/09 < 2 09/07/09 < 1 09/08/09 < 1 09/09/09 < 1 09/10/09 < 3 09/11/09 < 2 09/12/09 < 2 09/13/09 < 3 09/14/09 < 3 09/15/09 < 3 09/16/09 < 1 09/17/09 < 1 09/18/09 < 1 09/19/09 < 1 09/20/09 < 1 09/21/09 < 1 09/22/09 < 2 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95<2<2<2<2<1<2<1<2<2<1<1<2<2<2<2<2<1<1<3<2<3<4<3<3<2<2<2<2<2<1<2<5<5<6<3<4<5<4<4<4<4<4<3<5<3<5<4<4<4<7<6<6<9<8<7<5<6<5<5<4<4<4<1<1<2<1<1<1<2<1<2<1<1<1<2<1<2<1<1<1<2<2<2<3<3<2<1<2<2<2<2<1<2<3<3<3<2<2<3<3<3<3<2<2<2<3<3<4<2<2<2<5<4<4<7<6<6<3<3<3<3<3<3<3<2<2<2<2<2<2<2<2<2<2<2<2<2<2<2<2<1<1<3<3<3<4<3<3<2<2<2<2<2<2<2<4<4<4<3<2<3<3<3<3<3<3<3<4<3<4<3<2<3<6<4<5<7<6<6<3<3<3<3<3<3<3< 129< 104< 121>1 0000>1 0000>1 0000< 52< 59< 59< 55< 50< 61< 36< 32< 35< 36< 26< 23< 31< 23< 25< 31<22<22< 53< 46< 43<33< 35< 26< 30<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<2<2<2<3<2<3<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<2<1<1<1<2<1<2<1<1<1<3<2<2<4<3<3<1<1<1<1<1<1<2< 88< 68< 77< 47< 39< 51< 43< 53< 42< 44< 39< 48< 37< 34< 38< 37< 26< 23< 42< 31< 33< 48< 35< 36<44< 45< 42< 33< 29< 25< 35< 23< 18< 23< 13< 13<14<16< 13*17<12< 12< 14<13< 10< 14* 12<9<8< 12<11<10< 12< 12<10< 15< 14< 14< 12< 11<8<8 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA T SITE SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 09/23/09 < 1 09/24/09 < 1 09/25/09 < 1 09/26/09 < 1 09/27/09 < 1 09/28/09 < 1 09/29/09 < 3 09/29/09 < 4 09/29/09 < 1 EIML QC 09/29/09 < 2 09/30/09 < 1 10/01/09 < 1 10/02/09 < 1 10/03/09 < 2 10/04/09 < 1 10/05/09 < 1 10/06/09 < 2 10/07/09 < 1 10/08/09 < 1 10/09/09 < 1 10/10/09 < 1 10/11/09 < 1 10/12/09 < 1 10/13/09 < 1 10/14/09 < 2 10/15/09 < 1 10/16/09 < 1 10/16/09 < 1 10/17/09 < 1 10/17/09 < 1 10/18/09 < 1<2<2<1<1<1<1<3<4<2<4<2<2<1<3<2<2<4<1<1<2<1<1<1<1<2<2<1<2<1<3<1<4<5<3<3-< 4<4<7<9<5<6<5<5<3<9<5<6< 12<3<4<4<4<3<3<4<5<4<4<7<2< 11<2<2<2<1<1<1<1<4<5<1<3<1<1<1<2<1<1<2<1<1<1<1<1<1<1<2<1<1<1<0<2<1<3<3<3<2<2<2<6<9<2<5<2<2<2<4<2<2<5<2<2<3<2<2<2<2<4<3<2<3<2<4<2<2<2<1<2<2<2<4<5<2<3<2<2<1<3<2<2<5<2<2<2<1<1<1<2<3<2<1<2<1<.4<1<3<3<3<2<3<2<7<9<3<5< 3<3<3<5<3<4<8<3<3<3<3<2<2<3<5<3<3<4<2<6<2< 24< 21< 20< 23< 19< 163<7< 11< 251<9< 238< 245< 185< 384< 605< 655< 1330< 50< 49< 51< 130< 117< 131< 36< 52<33< 65< 659< 46< 4900< 42<1<1<1<1<1<1<3<5<1<2<1<1<1<1<1<1<2<1<1<1<1<1<1<1<2<1<1<1<1<1<1< 27< 29< 20< 28< 24< 72< 18< 27< 114< 22< 121< 120< 89< 171< 195< 204< 392< 39< 40< 39< 70< 65< 62< 35< 46< 36< 47< 223< 29< 781< 30<8<9<6<6<7< 25<5<9< 35<4< 32< 30< 28< 70< 64< 73< 149< 11< 14< 12< 20< 22< 19<9< 16< 11< 14< 70<9< 243<9 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE T c-n SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 10/18/09 < 1 10/19/09 < 1 10/20/09 < 1 10/21/09 < 1 10/22/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 10/23/09 10/24/09 10/25/09 10/26/09 10/27/09 10/28/09 10/29/09 10/30/09 10/31/09 11/01/09 11/02/09 11/03/09 11/04/09 11/05/09 11/06/09 11/07/09 11/08/09 11/09/09 11/10/09 11/11/09 11/12/09 11/13/09 11/14/09 11/15/09 11/16/09 11/17/09 11/18/09<2<1<1<2<1<1<1<1<2<2<1<2<1<1<2<1<1<1<2<1<1<1<1<1<1<2<2<2<1<1<1<3<5<4<4<4<4<3<4<5<4<7<3<4<4<4<5<3<4<4<5<3<4<3<3<3<2<4<4<4<3<4<5<8<2<2<2<2<2<2<2<2<2<3<2<2<2<2<2<2<2<2<3<2<2<2<2<2<1<3<3<2<2<2<3<2<1<1<2<2<1<1<1<2<2<1<2<2<2<2<1<2<2<2<1<2<1<1<1<1<2<2<2<2<1<2<3<3<3<3<2<3<2<3<3<4<2<3<3<2<3<2<2<3<3<3<3<3<2<2<2<3<3<3<2<3<3< 490< 82< 63< 74< 56< 50< 47< 305< 282< 386< 46< 73< 60< 155< 160< 113< 91< 106< 98< 40< 46< 39< 64< 63< 56< 41< 39< 48< 98< 88< 117<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1 168 58 42 57 43 42 38 113 110 143 33 52 44 86 80 66 56 60 64 36 44 32 45 42 35 39 38 38 56 58 76< 39< 20<12< 16< 14< 11< 12*<34< 25< 51<8< 14< 10< 21< 22<18< 13< 19< 23<9<11< 12<12<13< 13< 10< 11< 13< 15< 16< 16 1-131 Cs-134 Cs-137 Ba-140 La-140< 1 <4 <3 < 5 <322 < 2 <2 < 165 <52 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE ,o SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 11/19/09 < 1 11/20/09 < 1 11/21/09 < 1 11/22/09 < 1 11/23/09 < 1 11/24/09 < 1 11/25/09 < 1 11/26/09 < 1 11/27/09 < 1 11/28/09 < 1 11/29/09 < 1 11/30/09 < 1 12/01/09 < 1 12/02/09 < 1 12/03/09 < 1 12/04/09 < 1 12/05/09 < 1 12/06/09 < 1 12/07/09 < 1 12/08/09 < 1 12/09/09 < 1 12/10/09 < 1 12/11/09 < 1 12/12/09 < 1 12/13/09 < 1 12/14/09 < 1 12/15/09 < 1 12116/09 < 1 12/17/09 < 1 12/18/09 < 2 12/18/09 < 4<2<2<2<1<2<1<1<2<1<2<2<2<2<2<2<1<1<1<1<1<1<2<2<2<2<1<1<1<1<2<5<4<5<4<4<5<3<3<5<4<5<4<6<5<4<4<3<4<3<3<2<4<5<4.< 4<4<4<3<4<4<7<11<1<1<1< 1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<4<2<2<2<2<2<2<2<2<2<3<3<2<2<3<2<2<2<2<2<2<2<3<2<3<2<2<2<2<2<4<9<2<2<2<1<2<1<1<2<2<2<2<2<2<2<2<1<2<1<1<1<2<2<2<2<2<2<1<1<1<3<6<3<4<3<2<3<2<2<3<3<4<3<3<3<3<3<2<3<2<2<1<3<4<3<3< 3<2<3<3<2<5<9< 149< 170< 67< 57< 75< 42< 45< 158< 116< 337< 255< 1070< 824< 141< 179< 49< 78<12<13.< 9< 105< 141< 121< 128< 172< 168< 111< 137< 113< 198< 26<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<4<1<1<1<1<2<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<2<4< 87< 95* 52* 41< 57< 39< 35< 87< 66< 131< 118< 284< 221<77< 88< 38< 52<16<16<13< 63< 82< 77< 78<77< 80< 60< 74< 66< 125* 46< 23< 33<18<11* 20<10<10* 29<18< 46< 37< 79< 57< 22< 23<10<15<5<6<4< 18< 18< 17< 17< 33< 19< 15< 22< 17< 31< 13 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 w OY-SW-3 COLLECTION Mn-54 PERIOD 12/19/09 < 1 12/20/09 < 1 12/21/09 < 1 12/22/09 < 2 12/23/09 < 2 12/24/09 < 1 12/25/09 < 1 12126/09 < 1 12/27/09 < 1 12/28/09 < 1 12/29/09 < 1 12/30/09 < 1 12/31/09 < 1 09/29/09 < 5 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140<2<1<1<2<2<1<1<2<1<1<1<2<2<5<4 <1 <2 <2 <3<3<3<5<7<4<4<4<5<3<3<4<4<10<1<1<2<2<1<1<1<1<1<1<1<1<5<2<2<3<3<2<2<2<3<2<2<3<3<9<1<1<2<2<1<1<1<2<2<1<2<2<5<3<3<3<5<3<2<3<3<3<2<4<3<8< 113 < 1 < 1 < 74< 103 < 1 < 1 < 63< 90 < 1 < 1 < 55< 98 < 1 < 2 < 72< 110 < 2 < 2 < 78< 79 < 1 < 1 < 49< 69 < 1 < 1 < 46< 69 < 1 < 1 < 53<84 <1 <1 <54<77 <1 <1 <55< 50 < 1 < 1 < 37< 83 < 1 < 2 < 60< 69 < 1 < 1 < 52<10 <4 <5 <25< 21< 20< 17< 24< 23< 15< 13< 15< 15< 16< 10< 12< 15<8 BOLDED VALUES INDICATE THE LLD WAS NOT MET

Text

"1 16 Ii~~Ii ) Rx "S F, eked River, N) ey3 N', Ic (1McO r pee .c N uclear NEI 07-07 RA-10-040 September 24, 2010 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 -0001 Oyster Creek Nuclear Generating Station Renewed Facility Operating License No. DPR-16 NRC Docket No. 50-219

Subject:

Revised Annual Radiological Groundwater Protection Program Report for 2009 Enclosed with this cover letter is a revised copy of the 2009 Annual Radiological Groundwater Protection Program Report that was submitted under cover letter RA-10-003 on April 30, 2010. Revision bars have been used to indicate where changes were made to the April report.If any further information or assistance is needed, please contact Calvin Taylor at 609-971-4031.

Sincerely, Michael J. Ma.saro Vice President

-Oyster Creek Nuclear Generating Station I

Enclosure:

Annual Radiological Groundwater Protection Program Report for 2009 (Revised July 2010)cc: Administrator, USNRC Region I USNRC Senior Project Manager, Oyster Creek USNRC Senior Resident Inspector, Oyster Creek Ed Everett, American Nuclear Insurers File No. 10040 kcD(,/

Docket No: 50-219 OYSTER CREEK GENERATING STATION UNIT 1 Annual Radiological Groundwater Protection Program Report 1 January Through 31 December 2009 Prepared By Teledyne Brown Engineering Environmental Services XJ Nuclear Oyster Creek Generating Station Forked River, NJ 08731 April 2010 Revised July 2010

.Table of Contents I. Sum m ary and Conclusions

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1 II. Introduction

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3 A. Objectives of the RG PP .................................................................................

4 B. Im plem entation of the Objectives

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5 C. Program Description

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5 D. Characteristics of Tritium (H-3) ........................................................................

6 III. Program Description

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7 A. Sam ple Analysis ...............................................................................................

7 B. Data Interpretation.

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7 C. Background Analysis .....................................................................................

8 IV. Results and Discussion

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10 A. Program Exceptions

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10 B. Groundwater Results ...................................................................................

11 C. Surface W ater Results .................................................................................

12 D. Summary of Results -Inter-laboratory Comparison Program .....................

12 E. Leaks, Spills, and Releases .............................

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12 F. Trends ...............................................................................................................

14 G .Investigations

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16 H. Actions Taken ..............................................................................................

16 V. References

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17 Appendices Appendix A Tables Table A-i: Figures Figure A-i: Figure A-2: Figure A-3: Appendix B Tables Table B-1.11: Table B-1.2: Table B-11.1: Table B-11.2: Location Designation Radiological Groundwater Protection Program -Sampling Locations, Oyster Creek Generating Station, 2009 Sampling Locations

-Kirkwood Formation Wells, Oyster Creek Generating Station, 2009 Sampling Locations

-Cohansey Formation Wells, Oyster Creek Generating Station, 2009 Sampling Locations

-Cape May Formation Wells and Surface Water, Oyster Creek Generating Station, 2009 Data Tables Concentrations of Tritium and Strontium in Groundwater Samples Collected in the Vicinity of Oyster Creek Generating Station, 2009.Concentrations of Gamma Emitters in Groundwater Samples Collected in the Vicinity of Oyster Creek Generating Station, 2009.Concentrations of Tritium and Strontium in Surface Water Samples Collected in the Vicinity of Oyster Creek Generating Station, 2009.Concentrations of Gamma Emitters in Surface Water Samples, Collected in the Vicinity of Oyster Creek Generating Station, 2009.ii Summary and Conclusions This report on the Radiological Groundwater Protection Program (RGPP)conducted for the Oyster Creek Generating Station (OCGS) by Exelon Generation Company LLC (Exelon) covers the period 01 January 2009 through 31 December 2009.In 2006, Exelon instituted a comprehensive program to evaluate the impact of station operations on groundwater and surface water in the vicinity of the Oyster Creek Generating Station. This evaluation involved numerous station personnel and contractor support personnel.

This report covers groundwater and surface water samples collected from the environment, both on and off station property in 2009. More than two thousand analyses were performed on more than one thousand samples from 36 locations.

There were three inadvertent releases of contaminated water into the groundwater during 2009.On February 9, 2009, less than 1 gallon of condensation from the B Isocondenser vent leaked onto the ground. The tritium in the condensed water was 21,900 pCi/I (0.0000000829 Ci). The contaminated soil was placed in drums for disposal.

No doses were calculated since the spill was contained and soil disposed.On April 13, 2009, in preparation for work inside the Emergency Service Water (ESW) vault, water was found inside the vault. As part of standard practices for water removal, the water was pumped into drums and sampled for gamma emitters, tritium, and pH. Sample analysis identified tritium levels at 102,000 pCi/I.Investigation determined that the release of tritiated water was caused by leaks in the 8-inch and 10-inch carbon steel Condensate System lines. The root cause investigation determined that the piping leaks developed due to a corrosion mechanism known as anodic dissolution.

Poor application of pipe coating left the buried pipes susceptible to this corrosion.

On August 24, 2009, an eight to ten gallon per minute leak was discovered in the condenser bay. The leak was coming from the turbine building west wall penetration housing the Condensate Transfer CH-5 line, the six-inch Condensate Transfer Main Header. Two through-wall holes of 1/16" and 1/4" were found in the pipe within the wall penetration.

A tritium concentration of 10,800,000 pCi/I was detected.

The root cause investigation determined the cause to be galvanic corrosion.

Gamma-emitting radionuclides attributable to licensed plant operations were not detected in any of the groundwater or surface water samples.In the case of tritium, Exelon specified that its laboratories achieve a lower limit of detection 100 times lower than the drinking water limit specified by the United States Environmental Protection Agency (USEPA) (200 pCi/I versus 20,000 pCi/I).Tritium was detected in groundwater samples. Tritium concentrations varied from < 200 to 4,160,000 pCi/l. The highest concentrations were close to the source of the underground leaks. The flow of the tritium was in the direction of the intake and discharge canals. The flow is not likely to impact offsite groundwater.

No detectable tritium (greater than the LLD) was found in surface water samples collected from onsite and offsite monitoring locations; however, an anomalous indication of tritium at a low concentration level (less than the federal drinking water limit) was present in an onsite sample of surface water collected from the intake structure.

This location was re-sampled and tritium was not detected in the confirmatory sample or in more than 200 previous or subsequent samples from this same location.Strontium-90 was not detected in any groundwater or surface water sample during 2009.In assessing all the data gathered for this report, it was concluded that the operation of the Oyster Creek Generating Station had no adverse radiological impact on the environment beyond the site boundaries.

Introduction The Oyster Creek Nuclear Generating Station consists of a single boiling water reactor (BWR) and turbine generator capable of producing 650 megawatts of electricity.

The Station operates under Nuclear Regulatory Commission (NRC)renewed facility operating license number DPR-1 6. Brackish water from Barnegat Bay is supplied by the circulating water system. The circulating water system is designed to supply a continuous flow of water from Barnegat Bay through the plant to remove the waste heat released by the power cycle in the Main Condenser.

The circulating water system comprised of the intake canal from Barnegat Bay to the plant, the Main Condenser Circulating Water System, the dilution plant, and the discharge canal to Barnegat Bay. The dilution plant portion of the system minimizes the adverse effects of hot discharge water on aquatic life in the discharge canal and Barnegat Bay to meet the conditions of the Oyster Creek New Jersey Pollutant Discharge Elimination system (NJPDES) Permit No. NJ005550.

Approximately 1 million gallons per minute of water are withdrawn from the intake canal for dilution and station use and returned to the discharge canal.The Station is located in the Atlantic Coastal Plain physiographic province.Topography in the region of the Station is a slightly undulating coastal plain having low relief. The land surface gradually rises from sea Level at Barnegat Bay, which is located east of the Station, to approximately 50 feet above mean sea level (AMSL) 2 miles inland. This region of the coastal plain has numerous tidal marshes and is incised by easterly flowing streams and creeks. Elevations at the Station property west of Route 9 range from approximately 0 to 15 feet AMSL immediately adjacent to the intake and discharge canals to slightly more than 30 feet AMSL in the northwest portion of the Station property.

The 132-acre developed portion of the Site located within the "horseshoe" formed by the intake and discharge canals west of Route 9 has an approximate average elevation of 20 feet AMSL. In the immediate vicinity of the intake and discharge canals, the Station property slopes steeply down to the canal. The average elevation of the surface water level in the intake and discharge canals is approximately 1 -foot AMSL. The remaining 637-acre portion of the Station located east of Route 9 is primarily vegetated and undeveloped.

The ground surface is relatively level except for the steep slopes at areas adjacent to the intake and discharge canals.The three shallowest stratigraphic units in the vicinity of the Oyster Creek area in descending order are the Cape May Formation, the Cohansey Formation, and the Kirkwood Formation.

Some of the Station structures are constructed to depths of approximately 50 feet below ground surface (bgs). Excavations were completed from grade, through the fill, Cape May Formation, Upper Clay, and into the Cohansey Formation during construction.

Consequently, the bottoms of some some Station structures are completed within the Cohansey Formation and some structures breach the Upper Clay.The Cape May Formation regionally has an average thickness of 40 feet and at OCGS, the Cape May is described as a light gray to tan, medium- to fine-grained sand, with trace to some silt and occasional coarse sand. It is generally poorly compacted.

The Cape May Formation varies from 0 to 21 feet in thickness based on historical boring logs. The variation principally is due to the varying amount of material excavated and replaced by fill during Station construction.

When present, the thickness of the Cape May generally ranges from 15 to 20 feet thick.The base of the Cape May generally is defined by the presence of a dark clay unit referred to as the Upper Clay unit. The Upper Clay is a stiff to hard, gray, plastic organic clay containing inclusions (also described as lenses or partings) of dense fine sand with trace to some organic silt. The deposits of fine sand.within the Upper Clay layer have high relative densities and occur as lenses or inclusions.

The Cohansey Formation is primarily composed a light-colored, fine- to very coarse-grained quartzose sand with lenses of silt and clay. Although most borings at the Station do not penetrate the entire Cohansey Formation, this formation appears to be approximately 60 to 80 feet thick at OCGS. A clay sequence, referred to at the Station as the "Lower Clay", marks the base of the Cohansey, which generally is present to approximately 90 to 100 feet bgs. The lower clay is a dense gray medium- to fine-grained sand containing trace to some organic silt and layers or inclusions of very stiff to hard gray organic clay. The thickness of the lower clay is estimated to be approximately 10 to 20 feet in the vicinity of OCGS.The Cohansey Formation is underlain by the Kirkwood Formation which consists of several stratigraphic units. The Kirkwood Formation is described as a medium-to fine-grained sand with trace silt. The thickness of this formation beneath the Station is unknown. The south domestic supply well terminates in the Kirkwood at a depth of 310 feet bgs. The Kirkwood thickness in Ocean County ranges from approximately 300 to 400 feet.This report covers those analyses performed by Teledyne Brown Engineering (TBE) and Environmental Inc. (Midwest Labs) on samples collected in 2009.A. Objectives of the RGPP The long-term objectives of the RGPP are as follows: 1. Identify suitable locations to monitor and evaluate potential impacts from station operations before significant radiological impact to the environment and potential drinking water sources.

2. Understand the local hydrogeologic regime in the vicinity of the station and maintain up-to-date knowledge of flow patterns on the surface and shallow subsurface.

3. Perform routine water sampling and radiological analysis of water from selected locations.

4. Report new leaks, spills, or other detections with potential radiological significance to stakeholders in a timely manner.5. Regularly assess analytical results to identify adverse trends.6. Take necessary corrective actions to protect groundwater resources.

B. Implementation of the Objectives The objectives identified have been implemented at the Oyster Creek Generating Station as discussed below: 1. Exelon and its consultant identified monitoring locations as described in the Phase 1 study. Phase 1 studies were conducted by Connestoga Rovers and Associates (CRA) and the results and conclusions were made available to state and federal regulators as well as the public in station specific reports.2. The Oyster Creek Generating Station report describes the local hydrogeologic regime. Periodically, the groundwater flow patterns are updated based on ongoing measurements.

3. The Oyster Creek Generating Station will continue to perform routine sampling and radiological analysis of water from selected locations.

4. The Oyster Creek Generating Station has implemented procedures to identify and report new leaks, spills, or other detections with potential radiological significance in a timely manner.5. The Oyster Creek Generating Station staff and independent consultants, including a hydrogeologist, assess analytical results on an ongoing basis to identify adverse trends.C. Program Description Samples for the OCGS site were collected for Exelon by on-site personnel and Normandeau Associates, Inc. This section describes the general collection methods used to obtain environmental samples for the OCGS RGPP in 2009. Sample locations can be found in Table A-i, Appendix A.1. Sample Collection Samples of water are collected, managed, transported and analyzed in accordance with approved procedures following EPA methods.Both groundwater and surface water are collected.

Sample locations, sample collection frequencies and analytical frequencies are controlled in accordance with approved station procedures.

Contractor and/or station personnel are trained in the collection, preservation management, and shipment of samples, as well as in documentation of sampling events.2. Sample Analysis Analytical laboratories are subject to internal quality assurance programs and industry cross-check programs, as well as nuclear industry audits. Station personnel review and evaluate all analytical data deliverables as data are received.Analytical data results are reviewed by both station personnel and independent consultants, including a hydrogeologist, for adverse trends or changes to hydrogeologic conditions.

D. Characteristics of Tritium (H-3)Tritium (chemical symbol H-3) is a radioactive isotope of hydrogen.

The most common form of tritium is tritium oxide, which is also called "tritiated water." The chemical properties of tritium are essentially those of ordinary hydrogen.Tritiated water behaves the same as ordinary water in both the environment and the body. Tritium can be taken into the body by drinking water, breathing air, eating food, or absorption through the skin. Once tritium enters the body, it disperses quickly and is uniformly distributed throughout the body. Tritium is excreted primarily through urine with a clearance rate characterized by an effective biological half-life of about 14 days. Approximately one month after ingestion, essentially all tritium is cleared.Tritium is produced naturally in the upper atmosphere when cosmic rays strike air molecules.

Tritium is also produced during nuclear weapons explosions, as a by-product in reactors producing electricity, and in special production reactors.

Also, tritium was released into the atmosphere from Chernobyl in 1986. Like normal water, tritiated water is colorless and odorless.

Tritiated water behaves chemically and physically like non-tritiated water in the subsurface, and therefore tritiated water will travel at the same velocity as the average groundwater velocity.Tritium has a half-life of approximately 12.3 years. It decays spontaneously to helium-3 (He-3). This radioactive decay releases a beta particle (18.6 keV low-energy electron).

The radioactive decay of tritium is the source of the health risk from exposure to tritium. Tritium is one of the least dangerous radionuclides because it emits very weak radiation and leaves the body relatively quickly. Since tritium is almost always found as water, it goes directly into soft tissues and organs. The associated dose to these tissues is generally uniform and is dependent on the water content of the specific tissue.Ill. Program Description A. Sample Analysis This section describes the general analytical methodologies used by TBE to analyze the environmental samples for radioactivity for the Oyster Creek Generating Station RGPP in 2009. The sampling frequencies are increased if activity is detected, (see Table A-i, Appendix A for specific frequencies at each sampling point).In order to achieve the stated objectives, the current program includes the following analyses: 1. Biennial concentrations of gamma emitters in groundwater and surface water.2. Biennial concentrations of strontium-90 in groundwater and surface water.3. Semi-annual concentrations of tritium in groundwater and surface water.B. Data Interpretation The radiological data collected prior to Oyster Creek Generating Station becoming operational, as well as background data from publicly available databases, were used as a baseline with which these operational data were compared.

For the purpose of this report, Oyster Creek Generating Station was considered operational at initial criticality.

Several factors were important in the interpretation of the data: 1 .Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) is defined as the smallest concentration of radioactive material in a sample that would yield a net count (above background) that would be detected with only a 5%probability of falsely concluding that a blank observation represents a "real" signal. The LLD is intended as a before the fact estimate of a system (including instrumentation, procedure and sample type)and not as an after the fact criterion for the presence of activity.

All analyses were designed to achieve the required OCGS detection capabilities for environmental sample analysis.The minimum detectable concentration (MDC) is defined above with the exception that the measurement is an after the fact estimate of the presence of activity.2. Laboratory Measurements Uncertainty The estimated uncertainty in measurement of tritium in environmental samples is frequently on the order of 50% of the measurement value.Statistically, the exact value of a measurement is expressed as a range with a stated level of confidence.

The convention is to report results with a 95% level of confidence.

The uncertainty comes from calibration standards, sample volume or weight measurements, sampling uncertainty and other factors. Exelon reports the uncertainty of a measurement created by statistical process (counting error) as well as all sources of error (Total Propagated Uncertainty or TPU). Each result has two values calculated.

Exelon reports the TPU by following the result with plus or minus (+/-) the estimated sample standard deviation, as TPU, that is obtained by propagating all sources of analytical uncertainty in measurements.

Analytical uncertainties are reported at the 95% confidence level in this report for reporting consistency with the AREOR.C. Background Analysis 1. Background Concentrations of Tritium The purpose of the following discussion is to summarize background measurements of tritium in various media performed by others.Additional detail may be found by consulting references.

a. Tritium Production Tritium is created in the environment from naturally occurring processes both cosmic and subterranean, as well as from anthropogenic (i.e., man-made) sources. In the upper atmosphere, "cosmogenic" tritium is produced from the bombardment of stable nuclides and combines with oxygen to form tritiated water, which will then enter the hydrologic cycle.Below ground, "lithogenic" tritium is produced by the bombardment of natural lithium present in crystalline rocks by neutrons produced by the radioactive decay of naturally abundant uranium and thorium. Lithogenic production of tritium is usually negligible compared to other sources due to the limited abundance of lithium in rock. The lithogenic tritium is introduced directly to groundwater.

A major anthropogenic source of tritium and strontium-90 comes from the former atmospheric testing of thermonuclear weapons. Levels of tritium in precipitation increased significantly during the 1950s and peaked in 1963 with the signing of the limited test ban treaty. The Canadian heavy water nuclear power reactors, other commercial power reactors, nuclear research and weapons production continue to influence tritium concentrations in the environment.

Also, tritium was released into the atmosphere from Chernobyl in 1986.b. Precipitation Data Precipitation samples are routinely collected at stations around the world for the analysis of tritium and other radionuclides.

One publicly available database that provides tritium concentrations in precipitation is the USEPA's RadNet database.

RadNet provides tritium precipitation concentration data for samples collected at stations throughout the U.S.from 1978 up to and including 1996. Tritium concentrations in precipitation in New Jersey from 1978 through 1996 have ranged from 600 pCi/I in 1979 to since 0 pCi/I in 1996, with an average of 185 pCi/I. Tritium concentrations in wells may still be above the 200 pCi/I detection limit from the external causes described above. Water from previous years and Water from previous years and decades is naturally captured in groundwater, so some well water sources today are affected by the surface water from the 1960s that was elevated in tritium.c. Surface Water Data Tritium concentrations are routinely measured in surface water bodies, including Oyster Creek and the Delaware River. New Jersey surface water data between 1978 and 1998 averaged 185 pCi/I.The USEPA RadNet surface water data typically has a reported 'Combined Standard Uncertainty' of 2 standard deviations.

This corresponds to a +/- 36 to +/-100 pCi/I confidence bound on each given reported measurement so that the typical surface water background data provided by RadNet may be subject to measurement uncertainty of up to 100 pCi/I.The radio-analytical laboratory counts tritium results to an Exelon specified LLD of 200 pCi/I with a typical uncertainty of +/-100 pCi/l. Therefore, sample results reported by TBE near this LLD can not be distinguished from natural background concentrations in surface water.IV. Results and Discussion A. Program Exceptions

1. Sample Anomalies Sample Type Location Collection Analysis Reason Code Date Groundwater W-53 09/02/09 Tritium The re-analysis result confirms with historical data.Groundwater W-51 12/29/09 Tritium The re-analysis result confirms with the original result.Surface SW-1 6/24/10 Tritium Water Sample location was re-sampled at < LLD.2. Missed Samples Sample Type Location Code Collection Date Analysis Groundwater North Domestic Well* Spring Tritium Groundwater W-2, W-20 Fall Tritium*It is suspected that the sample was collected but mislabeled as South Domestic Well due to two collection dates of 03/11/09 listed for South Domestic Well.3. LLDs Not Met Required LLDs for Surface and Ground Water Isotope H-3 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La- 140 l/liter 3000 15 15 30 15 30 15 30 15 15 18 60 15 Indicated LLDs for shorter lived radionuclides were not met due to a time lag between taking the samples and shipping the samples.Sample results reported as > 10,000 pCi/liter were not quantified, due to required LLD not being met.B. Groundwater Results Samples were collected from on-site locations in accordance with the station radiological groundwater protection program. As reported in CRA's 2006 Hydrogeologic Investigation Report, groundwater flow in the vicinity of the Torus Water Storage Tank and the Condensate Storage Tank is towards the intake and discharge canals.Tritium Samples from 32 locations were analyzed for tritium activity (Table B-1.1, Appendix B). Tritium was detected in 265 of 436 samples.The values ranged from < 200 to 4,160,000 pCi/I.Strontium Strontium-90 was not detected in any location sampled in 2009.(Table B-1.1, Appendix B)

Gamma Emitters No gamma emitting nuclides, other than naturally occurring potassium-40, were detected in any of the samples analyzed during 2009. (Table B-1.2, Appendix B)C. Surface Water Results Samples were collected from on-site locations in accordance with the station radiological groundwater protection program. Analytical results and anomalies are discussed below.Tritium Samples from four locations were analyzed for tritium activity (Table B-11.1, Appendix B). No detectable tritium (greater than the LLD)was found in any surface water samples collected from onsite and offsite monitoring locations, however, an anomalous indication of tritium at a low concentration level (less than the federal drinking water limit) was present in an onsite sample of surface water collected from the intake structure.

This location was re-sampled and tritium was not detected in the confirmatory sample or any other samples from this same location.

The sample was not collected for either the REMP, or the RGPP monitoring programs, and therefore is not included in the tabular results.Strontium Strontium-90 was not detected in any location sampled in 2009.(Table B-11.1, Appendix B)Gamma Emitters No gamma emitting nuclides, other than naturally occurring potassium-40, were detected in any of the samples analyzed.(Table B-11.2, Appendix B)D. Summary of Results -Inter-Laboratory Comparison Program Inter-Laboratory Comparison Program results for TBE and Environmental Inc. (Midwest Labs) are presented in the 2009 Oyster Creek AREOR.E. Leaks, Spills, and Releases C The OCGS records inadvertent releases of radioactive liquids in accordance with 10 CFR 50.75(g).

As part of the hydrogeologic investigation associated with Exelon's fleet wide assessment in 2006, a third party environmental engineering firm was contracted to evaluate historic releases, if any, and determine if a potential pathway to the environment existed. Those releases that were determined to have potentially impacted groundwater were subsequently investigated as part of the fleet wide assessment.

The 2006 hydrogeologic investigation determined that there were no radiological impacts to groundwater at the Oyster Creek Generating Station.There were three abnormal releases during 2009 resulting in an estimated total exposure of < 0.001 mRem to the most limiting member of the public.On February 9, 2009 less than 1 gallon of condensation from the B Isocondenser vent leaked onto the ground. The tritium in the condensed water was 21,900 pCi/I (0.0000000829 Ci). The contaminated soil was placed in drums for disposal.

No doses were calculated since the spill was contained and soil disposed.

The leak was secured.On April 13, 2009, in preparation for work inside the Emergency Service Water (ESW) vault, water was found inside the vault. As part of standard practices for water removal, the water was pumped into drums and sampled for gamma emitters, tritium, and pH. Sample analysis identified tritium levels at 102,000 pCi/I. Investigation determined that the release of tritiated water was caused by leaks in the 8-inch and 10-inch carbon steel Condensate System lines. The root cause investigation determined that the piping leaks developed due to a corrosion mechanism known as anodic dissolution.

Poor application of pipe coating left the buried pipes susceptible to this corrosion.

All leaks were repaired.A total of 6.39 Ci of tritium was calculated to have been released from this leak. This number was arrived at by using the calculated volume released (187,476 gallons), the maximum tritium concentration of the Condensate Storage Tank (CST) from that time period (9,000,000 pCi/I), and the typical value of canal dilution flow from the ODCM of 1,000,000 gpm. The maximum dose calculated from this release was 0.0000293 mRem for both total body and organ dose.On August 24, 2009 an eight to ten gallon per minute leak was discovered in the condenser bay. The leak was coming from the turbine building west wall penetration housing the Condensate Transfer CH-5 line, the six-inch Condensate Transfer Main Header. Two through-wall holes of 1/16" and 1/4" were found in the pipe within the wall penetration.

A tritium concentration of 10,100,000 pCi/I was detected.

The root cause investigation determined the cause to be galvanic corrosion.

The leak was repaired.

A total of 2.04 Ci of tritium was calculated to have been released from this leak to the discharge canal over a 7 day period. This number was arrived at by using the conservatively estimated released volume (50,000 gallons)and the maximum tritium concentration of the CST from that time period (10,800,000 pCi/I), using the canal dilution flow from the ODCM of 1,000,000 gpm. The maximum dose calculated from this release was 0.00000936 mRem for both total body and organ dose.F. Trends The two leaks both occurred on the west side of the turbine building.

The close proximity of the leaks allows the same wells to monitor the tritium plume. An independent hydrogeologist has determined that the flow of the tritium plume is toward the intake and discharge canals, and not into the deeper aquifers.

The flow is not likely to impact offsite groundwater.

The wells closest to the leaks have the highest tritium concentrations.

Monitoring Well MW-1 5K-1A 10,000,0OO 1,000,000 100.000 10,000 ,oooo -100 10 I .: : : 'Min -9,810 pCi/L Max -4,160,000 pCi/L Mean -413,819 pCi/L Monitoring Well W-50'10,000,000 1,000.000

-4 100,000 10,000 0. 1,000 100 10 1 \e I ISO IQ1 19 I0 11 IQ§I 1ý 41 4"e4`I l Min -186,000 pCi/L Max -2,650,000 pCi/L Mean -957,604 pCi/L Monitoring Well W-55 10,000,000 1,000,000 100,000 10,000" 1,000 100 10 1 I I I I I I I I oc~~v o K Min -22,900 pCi/L Max -1,550,000 pCi/L Mean -283,912 pCi/L Monitoring Well W-571-I0,000,000 1,000,000 100,000 10,000 r. 1,000 100 10 I I (I I I I I+ + ,+ N -Min -200,000 pCi/L Max -738,000 pCi/L Mean -380,476 pCi/L G. Investigations Conestoga Rovers and Associates performed an independent assessment of the tritium plume. The results of their assessment can be found in References 2 and 3.1. Actions Taken 1. Compensatory Actions The compensatory actions taken during 2009 were to add 8 additional monitoring wells to better characterize and monitor the tritium plume.2. Installation of Monitoring Wells The following wells were installed in 2009 to better delineate the high levels of tritium found in well MW-1 5K-1 A. Wells W-561 and W-571 were installed to characterize migration of tritium from the Cape May Formation to the Cohansey Formation.

Well Number Formation Well Installation Date W-50 Cape May 04/21/09 W-51 Cape May 04/22/09 W-52 Cape May 04/23/09 W-53 Cape May 04/24/09 W-54 Cape May 04/24/09 W-55 Cape May 05/26/09 W-561 Cohansey 09/14/09 W-571 Cohansey 09/03/09 3. Actions to Recover/Reverse Plumes Oyster Creek Generating Station is currently addressing the tritium in groundwater through the process of Monitored Natural Attenuation.

As a result of this process tritium concentrations continue to decline to less than detectable through decay, dilution and dispersion.

Oyster Creek will continue to evaluate alternative remediation strategies as additional information becomes available or in response to changing conditions.

V. References

1. Conestoga Rovers and Associates, Hydrogeologic Investigation Report, Fleetwide Assessment, Oyster Creek Generating Station, Forked River, New Jersey, Ref. No. 045136(18), September 2006 2. Conestoga Rovers and Associates, Site Investigation Report, Oyster Creek Generating Station, Forked River, New Jersey, Ref. No. 055875 (4), August 2009 3. Conestoga Rovers and Associates, Remedial Investigation Workplan, Oyster Creek Generating Station, Forked River, New Jersey, Ref. No. 055875 (5), October 2009 APPENDIX A LOCATION DESIGNATION

/I , /.N.o.; -. r .., ...v ~ JA --Il/iD I/ t! -':-., : i ,- 'E, " 2000 0 2000 Feat" Kikwood Formation Trhium Sampla Location" Kllwood Fomation Groundwater Elevation Monitoring Location 2009 RGPP Samping and Moniioring Locations Kjrkwood FomUation Wet F AC e ln CG rporaS ion Figure A-1 Oysler Crook Generating Slaion

"" 'i ... ".. , -.-V 2A, W.FigueA2 Oyt.Cee-_

rhigSao t;-2000 0 2000 Feet SCohansey Fom,.ation Tritum ,Sampl Location C obzansey Formation Groundwater Elevation Monitoring LocationRGPP Sampling andl Monitoring Locaiiors Coasey Formation WallI Exelon Corporation Figure A-2 Oyster Crook Generating Siation

+2000 0 2000 Feet" Surface Water and Cape May Formation Tritium Sample Location* Cape May Formation Goundwatar Elevation Monirtring Point.2009 RGPP Sampling and Monitoring Locations Cape May Formation Wall Exelon Corporation Oyster Creak Generating Station Figure A-3 t TABLE A-1: Radiological Groundwater Protection Program -Sampling Locations, Oyster Creek Generating Station, 2009 Collection and Required Sample No. Type Analysis Frequency Analysis S Tritium LW-3 Well B Gamma B Sr-90 S Tritium LW-4 Well B Gamma B Sr-90 M*, S Tritium MW-11-1A Well M*, B Gamma B Sr-90 M*, S Tritium MW-11i-2A Well M*, B Gamma B Sr-90 S Tritium MW-2 Well B Gamma B Sr-90 S Tritium MW-2A Well B Gamma B Sr-90 W*, S Tritium MW-15K-1A Well W-, B Gamma B Sr-90 S Tritium MW-16 Well B Gamma B Sr-90 S Tritium MW-16D Well B Gamma B Sr-90 S Tritium MW-20 Well B Gamma B Sr-90 S Tritium North Domestic Well Well B Gamma B Sr-90 S Tritium South Domestic Well Well B Gamma B Sr-90 S Tritium W-IA Well B Gamma B Sr-90 M*, S Tritium W-3 Well M*, B Gamma B Sr-90 M*, S Tritium W-4 Well M*, B Gamma B Sr-90 A-5 TABLE A-1: Radiological Groundwater Protection Program -Sampling Locations, Oyster Creek Generating Station, 2009 Collection and Required Sample No. Type Analysis Frequency Analysis WellM Tritium W-4K M* Gamma M*, S Tritium W-5 Well M*, B Gamma B Sr-90 M*, S Tritium W-6 Well M*, B Gamma B Sr-90 S Tritium W-7 Well B Gamma B Sr-90 S Tritium W-9 Well B Gamma B Sr-90 S Tritium W-12 Well B Gamma B Sr-90 S Tritium W-13 Well B Gamma B Sr-90 S Tritium W-14 Well B Gamma B Sr-90 S Tritium W-15 Well B Gamma B Sr-90 W-50 Well W* Tritium W* Gamma W-51 Well W* Tritium W* Gamma W-52 Well W* Tritium W* Gamma W-53 Well W* Tritium W* Gamma W-54 Well W* Tritium W* Gamma W-55 Well W* Tritium W* Gamma W-561 Well W* Tritium W* Gamma W-571 Well W* Tritium W* Gamma A-6 TABLE A-1: Radiological Groundwater Protection Program -Sampling Locations, Oyster Creek Generating Station, 2009 Collection and Required Sample No. Type Analysis Frequency Analysis Tritium Surface D*, S Gamma SW-1 Water D*, B Sr-90 B Surface D*, S Tritium SW-2 Water D*, B Gamma B Sr-90 Surface S Tritium SW-3 Water B Gamma B Sr-90 Main Condenser Surface Discharge Water D' Tritium D* Gamma* Frequency after April identification of tritium leak D = Daily W =Weekly M = Monthly S = Semi-annual B = Biennial Note that only sample points that are part of the program are listed in this table.A-7 APPENDIX B.-DATA TABLES TABLE B-1.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE LW-3 LW-3 LW-4 LW-4 MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-iA MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-IA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW- 15K-lA MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-iA MW-15K-1A MW-15K-iA COLLECTION DATE 03/12/09 10/02/09 03/12/09 10/02/09 03/10/09 04/16/09 04/20/09 04/29/09 05/01/09 05/06/09 05/13/09 05/20/09 05/28/09 06/02/09 06/09/09 06/16/09 06/23/09 07/01/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/1 2/09 08/19/09 08/25/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/14/09 09/16/09 09/18/09 09/21/09 09/23/09 09/25/09 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/29/09 11/04/09 11/11/09 H-3 SR-90< 192< 176< 189< 174< 192 2390000 +/- 160000 1290000 +/- 23600 4160000 +/- 339000 3940000 +/- 331000 3170000 +/- 294000 1790000 +/- 171000 837000 +/- 19700 500000 +/- 15400 377000 +/- 13500 62400 +/- 6100 80000 +/- 6760 71100 +/- 6420 47700 +/- 4800 53200 +/- 5780 61500 +/- 6750 67800 +/- 7360 115000 +/- 12000 118000 +/- 12400 26300 +/- 2610 31800 +/- 3210 40000 +/- 4030 46400 +/- 4660 70400 +/- 4040 128000 +/- 13000 90400 +/- 11200 61800 +/- 9630 88100 +/- 11000 108000 +/- 12300 284000 +/- 16800 131000 +/- 13500 123000 +/- 7960 50800 +/- 5130 78500 +/- 9190 43600 +/- 4240 53600 +/- 5690 63900 +/- 8420 55000 +/- 5740 52900 +/- 5670 35000 +/- 4880 51700 +/- 4640 51400 +/- 7640 9810 +/- 5160 14200 +/- 5520< 1.0< 0.8 B-1 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-iA MW-1 5K-1 A MW-15K-1A MW-15K-1A MW-16 MW-16 MW-16D MW-16D MW-il-iA MW-1iI-A MW-II-1A MW-1I-1A MW-1I-iA MW-II-iA MW-1I-1A MW-1I-iA MW-1I-iA MW-11-iA MW-Il-IA MW-1 I-1A MW-11-iA MW-1 I-2A MW- 11-2A MW-1 I-2A MW- 11-2A MW- 11-2A MW- 11-2A MW- 11-2A MW- 11-2A MW- 11-2A MW-1 I-2A MW-2 MW-2 MW-2 MW-20 MW-20 MW-20 MW-2A MW-2A W-50 W-50 W-50 W-50 W-50 W-50 W-50 COLLECTION DATE 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 03/10/09 10/01/09 03/10/09 09/30/09 03/10/09 04/16/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 03/10/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 10/01/09 10/29/09 11/24/09 12/30/09 03/10/09 03/10/09 03/10/09 03/10/09 03/10/09 03/10/09 03/10/09 09/30/09 04/21/09 04/29/09 05/06/09 05/13/09 05/20/09 05/28/09 06/02/09 H-3 SR-90 10600 +/- 5300 13700 +/- 5510 13900 t 5530 43900 +/- 7540 25000 +/- 2550 15100 +/- 1550 62100 +/- 6060< 178< 188< 186< 177< 192< 196< 190< 177 280 +/- 123< 0.9< 0.8< 152< 183< 177< 172< 178< 178< 155< 171< 194.< 192< 199< 166< 159< 168< 174< 183< 160.< 169< 192< 185 EIML QC < 149< 189< 181 EIML QC < 149< 186< 176 2350000 2140000 2650000 2090000 1880000 1420000 1600000< 0.6< 0.7< 0.7+/- 32100+/- 31600+/- 234000+/- 31300+/- 29600+/- 25800+/- 27400 B-2 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 W-50 NORTH DOMESTIC WELL SOUTH DOMESTIC WELL SOUTH DOMESTIC WELL SOUTH DOMESTIC WELL COLLECTION DATE 06/09/09 06/16/09 06/23/09 07/01/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/14/09 09/16/09 09/18/09 09/21/09 09/23/09 09/25/09 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 10/02/09 03/11/09 03/11/09 04/17/09 H-3 SR-90 2040000 +/- 30700 1890000 +/- 29700 1700000 +/- 28200 1420000 +/- 25600 1120000 +/- 22900 1180000 +/- 117000 1060000 +/- 106000 998000 +/- 99700 1180000 +/- 117000 443000 +/- 9790 287000 +/- 7930 608000 +/- 11500 621000 +/- 11600 1650000 +/-44800 2070000 +/- 49300 1550000 +/- 42600 1170000 +/- 37200 1030000 +/- 34900 1080000 +/- 32200 839000 +/- 28200 910000 +/- 33600 431000 +/- 14300 539000 +/- 26200 512000 +/- 25300 486000 +/- 24800 499000 +/- 21600 445000 +/- 14400 387000 +/- 13500 322000 +/- 12400 241000 +/- 10800 345000 +/- 18500 186000 +/- 13500 273000 +/- 16100 299000 +/- 17000 264000 +/- 15900 431000 +/- 42400 300000 +/- 17000 328000 +/- 17700 204000 +/- 9970 277000 +/- 11500 220000 +/- 10300 175 193 183 182< 0.8 B-3 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE SOUTH DOMESTIC WELL W-12 W-12 W-12 W-13 W-13 W-14 W-14 W-15 W-15 W-15 W-15 W-IA W-1A W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-3 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4 W-4K W-4K W-4K W-4K W-4K W-4K COLLECTION DATE 10/02/09 03/10/09 09/30/09 09/30/09 03/10/09 09/30/09 03/11/09 10/01/09 03/11/09 03/11/09 03/11/09 10/01/09 03/10/09 09/30/09 03/10/09 04/17/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 03/10/09 04/17/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 05/27/09 06/30/09 07/29/09 08/27/09 09/30/09 10/01/09 H-3< 175< 182< 185< 188< 177< 188< 186< 184< 183< 174 EIML QC < 149< 191< 190< 177< 191< 187< 196< 177< 164< 157< 187< 175< 177< 171< 154< 170< 187< 191< 193< 181< 167< 157< 184< 176< 179< 170< 156< 170< 177< 164< 161< 179< 177 EIML QC < 154 SR-90< 0.8< 0.6< 0.6< 0.8< 0.7< 0.7< 0.8< 0.6< 0.9 B-4 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-4K W-4K W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 COLLECTION DATE 10/28/09 11/24/09 03/11/09 04/16/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 04/22/09 04/29/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 07/01/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/20/09 08/26/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/16/09 09/18/09 09/23/09 09/25/09 H-3 SR-90 167 172 184 165 193 178 158 161 181 172 177 157 159 168 2300000 +/- 236000 1770000 +/- 28800 2170000 +/- 31800 2530000 +/- 225000 2020000 +/- 30800 2030000 +/- 31100 1780000 +/- 28700 1570000 +/- 27200 1570000 +/- 27200 721000 +/- 18500 767000 +/- 19200 982000 +/- 21700 1620000 +/- 158000 DRY 1830000 +/- 180000 1470000 +/- 144000 456000 +/- 9910 109000 +/- 4960 164000 +/- 6010 129000 +/- 5360 215000 +/- 16900 210000 +/- 16300 195000 +/- 15800 201000 +/- 16000 217000 +/- 16500 272000 +/- 18700 131000 +/- 5660 144000 +/- 6180 676000 +/- 27400 657000 +/- 26600< 0.7< 5.8 B-5 TABLE B-1.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 COLLECTION DATE 09/28/09 10/02/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/25/09 12/02/09 12/09/09 12/16/09 12/23/09 12/29/09 12/29/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 H-3 SR-90 Original Re-analysis 609000 +/- 24700 588000 +/- 23800 708000 +/- 67200 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY 4860 +/- 531 3010 +/- 338< 172 161 +/- 97* 179< 179< 164< 161< 195< 170< 169< 167< 159< 159< 196< 158< 191< 193< 179 372 +/- 116 169 +/- 103< 170< 150< 173< 180< 164< 168< 181< 182 B-6 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 COLLECTION DATE 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 04/24/09 04/29/09 05/01/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 09/02/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 H-3 SR-90< 180< 171< 159< 161< 158< 164< 164< 161 1300 +/- 192 6300 +/- 677 8320 +/- 879 7270 +/- 766 2240 +/- 269 1440 +/- 205 1390 +/- 194 1040 +/- 160 Original Re-analysis

< 163< 197< 159< 159< 163 183 +/- 117 192 +/- 115< 191 174 + 111< 184< 178< 183 93800 +/- 6340< 179 194 +/- 107< 152< 149< 151< 167< 168< 164< 180< 184< 179< 170< 157< 158< 161 B-7 TABLE B-1.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-53 W-53 W-53 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54" W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-55 W-55 W-55 COLLECTION DATE 12/15/09 12/22/09 12/29/09 04/24/09 05/01/09 05/06/09 05/13/09 05/20/09 05/28/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 06/02/09 07/01/09 07/15/09 H-3 SR-90< 164< 164* 163 5230 +/- 2000 455 +/- 130 6990 +/- 744 4150 +/- 458 2400 +/- 288 4720 +/- 515 7830 +/- 820 5820 +/- 629 2580 +/- 304 4920 +/- 535 3350 +/- 375 4180 +/- 462 7840 +/- 827 4770 +/- 518 4070 +/- 452 2650 +/- 315 1010 +/- 268 3300 +/- 374 1870 +/- 237 2430 +/- 296 2610 +/- 315 711 +/- 138 1130 +/- 174 762 +/- 151 1070 +/- 165 1550 +/- 210 545 +/- 128 264 +/- 124 277 +/- 124 2210 +/- 278 1030 +/- 163 3490 +/- 830 9520 +/- 1000 1080 +/- 169 381 +/- 119 776 +/- 140 205 +/- 109 1550000 +/- 26900 128000 +/- 8220 645000 +/- 60800 B-8 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-55 W-55 W-55 W-55 (Bottom of Well)W-55 (Middle of Well)W-55 (Top of Well)W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-561 W-561 W-561 W-561 W-561 W-561 COLLECTION DATE 07/22/09 07/29/09 08/05/09 08/12/09 08/12/09 08/12/09 08/19/09 08/25/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/14/09 09/16/09 09/18/09 09/21/09 09/23/09 09/25/09 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 09/16/09 09/18/09 09/23/09 09/25/09 09/28/09 09/30/09 H-3 837000 +/- 83600 283000 +/- 28800 175000 +/- 18000 61400 +/- 3790 57000 +/- 3660 30000 +/- 2750 207000 +/- 6730 348000 +/- 8690 759000 +/- 12800 744000 +/- 30700 544000 +/- 25700 514000 +/- 24800 603000 +/- 26900 5870001+/- 26600 575000 +/- 26900 146000 +/- 8600 137000 +/- 13700 116000 +/- 7730 236000 +/- 17600 147000 +/- 12200 207000 +/- 16500 327000 +/- 17700 177000 +/- 9360 160000 +/- 8970 150000 +/- 8750 161000 +/- 9010 121000 +/- 11200 74500 +/- 9180 48000 +/- 7790 124000 +/- 11300 82300 +/- 8160 69800 +/- 9030 78000 +/- 9380 45000 +/- 4550 35800 +/- 3620 43800 +/- 5340 22900 +/- 2330 472000 +/- 24400 485000 +/- 15100 611000 +/- 27800 482000 +/- 24700 458000 +/- 20700 493000 +/- 15200 SR-90 B-9 TABLE B-1.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-6 W-6 W-6 W-6 W-6 W-6 W-6 W-6 COLLECTION DATE 10/02/09 10/07/09 10/14/09 10/21/09 10/29/09 11/04/09 11/11/09 11/1 8/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 09/11/09 09/16/09 09/18/09 09/23/09 09/25/09 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/29/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 03/11/09 04/16/09 04/20/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 H-3 SR-90 514000 +/- 15500 508000 +/- 15500 608000 +/- 24000 753000 +/- 26700 955000 +/- 29600 1290000 +/- 121000 1040000 +/- 31100 1010000 +/- 94500 1150000 +/- 108000 1030000 +/- 30700 1080000 +/- 31400 1150000 +/- 22800 962000 +/- 20800 993000 +/- 21100 738000 +/- 29700 408000 +/- 22700 431000 +/- 14200 398000 +/- 22500 372000 +/- 21800 360000 +/- 18600 313000 +/- 12300 380000 +/- 13400 380000 +/- 13500 344000 +/- 18100 307000 +/- 17400 384000 +/- 19000 490000 +/- 43000 326000 +/- 17900 367000 +/- 18600 305000 +/- 17100 444000 +/- 20400 263000 +/- 16000 495000 +/- 15100 285000 +/- 11700 200000 +/- 9940< 191< 187< 191< 178* 152< 158< 176< 178 B-10 TABLE B-I.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION DATE SITE H-3 SR-90 W-6 W-6 W-6 W-6 W-6 W-7 W-7 W-9 W-9 10/01/09 10/01/09 10/29/09 11/24/09 12/30/09 03/11/09 09/30/09 03/10/09 09/30/09< 189< 188< 172< 159< 167< 187< 181< 186< 186< 0.9< 0.5< 0.7< 0.8 B-11 TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE w LW-3 LW-4 MW-15K-1A MW-15K-iA MW-15K-lA MW-15K-lA MW-15K-1A MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-IA MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-IA MW-15K-1A MW-15K-1A MW- 15K-iA MW-15K-1A MW- 15K-iA MW-15K-1A MW-15K-1A COLLECTION Mn-54 PERIOD 10/02/09 < 4 10/02/09 < 4 04/29/09 < 2 05/01/09 < 2 05/06/09 < 1 05/13/09 < 1 05/20/09 < 2 05/28/09 < 2 06/02/09 < 1 06/09/09 < 2 06/16/09 < 2 06/23/09 < 2 07/01/09 < 2 07/07/09 < 3 07/15/09 < 2 07/22/09 < 2 07/29/09 < 1 08/05/09 < 2 08/12/09 < 1 08/19/09 < 1 08/25/09 < 1 08/28/09 < 2 08/31/09 < 1 09/02/09 < 1 09/04/09 < 1 09/08/09 < 2 09/09/09 < 1 09/11/09 < 1 09/14/09 < 1 09/16/09 < 1 09/1 8/09 < 2 09/21/09 < 1 09/23/09 < 1 09/25/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140<5<4<4<4<2<1<4<3<2<3<3<4<3<5<3<4<1<2<1<1<2<2<2<2<2<3<2<2<2< 2<4<2<2<2<8<9< 15< 12<8<3< 15< 10<6<11<8< 10<9<14<10< 12<4<5<3<4<4<4<3<5<4<8<6<5<6<4< 14<6<5<4<5<5<2<2<1<1<2<2<1<2<1<2<2<3<2<3<1<2<1<1<1<2<1<1<1<1<1<1<1<1<1<2<1<1<8<9<5<4<3<1<5<3<3<4<4<5<5<7<4<4<2<3<2<2<2<3<3<2<2<4<3<2<2<2<3<3<2<2<4<5<5<4<3<1<5<4<2<3<3<4<4<5<4<4<1<2<1<2<2<2<2<2<2<3<2<2<2<2<5<3<2<2<7<9<8<7<5<2<8<6<4<6<5<7<6<9<7<8<3<4<2<3<3<4<3<4<3<5<4<3<3<3<7<5<3<3<7<8< 9890< 27800< 1020< 263>10000>10000>10000< 987< 533< 582< 336< 351< 2380< 1520>10000>10000>1 0000>10000>1 0000>1 0000>1 0000< 474< 379< 547< 425< 2010< 1680< 235< 33100< 244< 664< 125<4<4<2<2<1<1<2<2<1<2<2<2<2<3<2<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<4<4<2<2<1<1<2<2<1<2<2<2<2<3<2<2<1<1<1<1<1<2<2<1<1<1<1<1<1<1<1<1<1<1< 22< 20< 1370< 1060< 281< 95< 826< 452< 275< 323< 210< 258< 169< 209< 532< 403< 58< 65< 42< 49< 32< 39< 28< 171< 140< 224< 180< 388< 348< 123< 2900< 113< 187< 74<7<8< 430< 329< 95< 29< 286< 152< 81< 123< 70< 86< 51< 62<177< 142< 15< 14< 14< 13<10<8<8< 51< 38< 82< 49< 116< 72< 37< 756< 35< 54< 25 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE ,w MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-iA MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-1A MW-15K-iA.

MW-15K-iA MW-16 MW-1 6D MW-1 I-1A MW-1 I-1A MW-1 I-1A MW-11-1A MW-11-1A MW-iI-1A MW-11-1A MW-1 I-1A MW-11-1A MW-1 I-1A MW-1 I-2A MW-1 I-2A MW-1 I-2A COLLECTION PERIOD 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/29/09 11/04/09 i 1/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 10/01/09 09/30/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 05/27/09 06/30/09 07/29/09 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140........ i<1<1<1<1<1<1<1<2<1<1<2<1<1<3<4<4<3<4<4<2<1<2<1<1<6<1<4<2<4<2< 1<3<1<3<2<2<1<2<2<3<2<2<2<2<1<2<2<3<4<5<3<2<2<1<2<5<2<2<2<5<2<2<9<4<10<8<8<2<4<6<9<6<5<5<6<4<4<5<7<8< 13<9<4<5<4<4< 12<4<5<4<10<7<5<1<1<1<1<1<1<1<1<1<2<4<4<5<2<2<4<4< 5<2<1<1<1<1< 5<1<1<1< 4< 2< 1<2<2<3<2<3<1<3<2<3<3<3<3<3<2<2<3<7<7<8<4<3<3<2<3< 11<3<3<2<8<3<3<3< 1<4<2<3<1<2<2<3<2<2<2<2<2<2< 2<3<5<5<3<2<2<2<2<6<2<2<2<4<3<2<6<2<5<4<5<2<3<4<6<4<4<4<4<2<3<3<6<8<8<6<3<4<3<4< 10<3<3<3<7<5<4< 73600< 344< 8700< 4910< 3770< 57< 74< 3470< 2640< 1120< 1020< 446< 225< 259< 188< 135<6< 11<22< 304<34>10000< 73< 94< 14< 124< 170< 130< 13< 273< 42<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<3<4<4<2<1<1<1<1<5<1<1<1<3<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<3<5<4<2<1<1<1<1<5<1<1.<1<4<2<1< 3670< 116< 1070< 630< 709< 38< 48< 565< 555< 288< 287< 163< 121< 103< 88< 82<15< 28< 39< 156< 39< 42< 48< 73< 32< 81< 93< 73< 32< 137< 43 1200 35 339 218 191 10 15 193 169 87 88 63 28 29 25 22 5 6 15 56 13 13 16 21 8 28 28 23 10 46 13 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD MW-1 I-2A MW-1 I-2A MW-1 I-2A MW-1 I-2A MW-1 I-2A MW-2A MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 ,' MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 08/26/09 10/01/09 10/29/09 11/24/09 12/30/09 09/30/09 04/29/09 05/06/09 05/13/09 05/20/09 05/28/09 06/02/09 06/09/09 06/16/09 06/23/09 07/01/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09<2<5<1<1<1<4<2<2<2<2<1<2<1<2<1<2<3<2<2<1<2<1<1<2<2<1<1<1<2<2<2 <3<5 <10<2 <5<2 <5<2 <5<5 <10<5 <19<4 <14<4 <14<3 <12<2 <7<3 <9<2 <6<3 <10<2 <7<3 <8<4 <10<4 <14<3 <8<1 <3<2 <5<1 <4<1 <4<2 <5<2 <5<2 <6<2 <6<2 <7<2 <5<3 <9<1 <2 <2 <4 >10000<6 <8 <5 <10 <11<1 <2 <2 <3 <112<1 <3 <2 <3 <141<2 <3 <2 <4 <191<4 <8 <5 <8 <9< 2 < 5 < 5 < 10 >10000<2 <5 <5 <8 <5460<2 <5 < 5 < 7 >10000<2 <4 <4 <7 >10000< 1 <3 <2 <4 >10000< 1 < 3 < 3 <5 >10000<2 <3 <2 <4 >10000<2 <5 <4 <6 <581<1 <3 <3 <4 <392<2 <4 <3 <5 <270<3 <6 <4 <7 <256<2 <5 <5 <8 <2580<1 <3 <3 <6 <1290< 1 <2 < 1 <2 >10000<2 < 4 <3 <5 >10000< 1 < 2 <2 <3 >10000< 1 < 2 <2 <3 >10000<2 <3 <2 <3 >10000< 1 <4 <2 <4 >10000<1 <2 <-2 <4 <1050<1 <2 <2 <4 <542<1 <3 <2 <4 <537<1 <2 <2 <4 <506<2 <4 <3 <6 <643<1<4<1<1<1<4<2<2<2<1<1<1<1<2<1<2<2<2<1<1<1<1<1<1<2<1<1<1<1<2<1<5<1<1<1<5<2<2<2<2<1<1<1<2<1<2<3<2<2<1<2<1<1<2<2<1<1<1<1<2< 36< 30< 71< 82* 100< 26< 2430< 963< 1110< 642* 342* 348<184* 241< 165< 137< 156< 659< 292< 45< 67< 50<44< 42< 41< 241< 201< 175< 192< 237< 15< 10* 22< 19* 26<8* 872< 307< 342* 226* 108< 102< 65< 87< 53< 50< 48* 178< 97<15< 24< 15<14< 14< 11< 77< 57< 57< 50< 73 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE 631 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-50 MW-6 MW-6 MW-6 MW-6 MW-6 MW-6 MW-6 COLLECTION Mn-54 PERIOD 09/11/09 < 1 09/14/09 < 1 09/16/09 < 2 09/18/09 < 1 09/21/09 < 1 09/23/09 < 1 09/25/09 < 1 09/28/09 < 2 09/30/09 < 1 10/02/09 < 1 10/07/09 < 1 10/14/09 < 1 10/21/09 < 1 10/28/09 < 1 11/04/09 < 1 11/11/09 < 1 11/18/09 < 1 11/24/09 < 1 12/01/09 < 2 12/08/09 < 1 12/15/09 < 1 12/22/09 < 1 12129/09 < 1 05/27/09 < 4 06/30/09 < 2 07/29/09 < 2 08/26/09 < 1 09/30/09 < 1 10/01/09 < 4 10/01/09 < 5 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140<2<2<2<3<2<2<2<4<3<3<2<2<1<2<2<1<3<3<3<2<1<2<1<6<3<2<2<2<4<5<6<7< 13<5<4<3< 13< 10< 10<7<6<3<4<8<3<8<7<8<5<3<4<4< 10<9<5<4<3<7<1<1<2<2<1<1<1<1<1<1<1<1<2<2<1<1<2<2<1<1<1<1<1<4<2<1<2<1<4<2<2<3<3<2<3<2<3<3<3<2<2<1<3<3<2<3<3<3<2<2<2<2< 10<4<3<3<2<7<2<2<3<4<2<2<2<5<4<3<3<3<1<2<3<1<2<3<3<2<1<2<2<6<3<2<2<1<4<3<4<4<7<4<4<3<9<6<6<5<4<2<3<6<3<4<4<5<3<2<3<2< 10<6<4<3<3<8< 1810< 1720< 332< 26500< 168< 150< 134>10000< 11400< 9400< 6360< 3160< 63< 58< 3980< 17< 1330< 1110< 485< 152< 218< 192<77< 27< 320< 46>10000< 86<7<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<5<2<1<1<1<3<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<5<2<2<1<1<4< 387< 352< 160< 2210< 91< 96< 75< 5750< 1380< 1200< 733< 505< 41< 42< 668< 21< 392< 297< 188< 89< 89< 97< 56< 39< 153< 43< 42< 50< 18< 115< 113< 47< 704< 25< 23< 20< 1570< 368< 358< 276< 199<11< 16< 191<4< 86<84< 47< 19< 27< 25<14< 14< 55< 14< 11< 17<7 La-140<6 < 11 < 7 < 10 <5 < 10 < 11<5 <5 <29 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA w SITE COLLECTION Mn-54 PERIOD MW-6 10/29/09 < 2 MW-6 11/24/09 < 1 MW-6 12/30/09 < 1 MW-7 09/30/09 < 5 MW-9 09/30/09 < 4 NORTH DOMESTIC WELL 10/02/09 < 3 SOUTH DOMESTIC WELL 10/02/09 < 5 W-12 09/30/09 < 5 W-12 09/30/09 < 6 W-13 09/30/09 < 4 W-14 10/01/09 < 6 W-15 10/01/09 < 5 W-IA 09/30/09 < 4 W-3 05/27/09 < 3 W-3 06/30/09 < 2 W-3 07/29/09 < 2 W-3 08/26/09 < 1 W-3 09/30/09 < 1 W-3 10/01/09 < 5 W-3 10/29/09 < 1 W-3 11/24/09 < 1 W-3 12/30/09 < 1 W-4 05/27/09 < 5 W-4 06/30/09 < 1 W-4 07/29/09 < 2 W-4 08/26/09 < 1 W-4 09/30/09 < 1 W-4 10/01/09 < 6 W-4 10/29/09 < 1 W-4 11/24/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140<3<2<1<4<4<3<5<5<5<4<6<5<4<3<3<2<2<2<5<2<2<2<5<2<3<1<2<6<2<1<8<4<4< 12<9<6< 10<9<10<9< 13< 10<9<8<8<6<4<4< 11<6<5<4< 11<6<6<4<5< 12<5<3<1<1<1<6<4<4<6<4<6<4<5<5<4<3<2<3<1<1<4<1<1<1<5<1<2<1<2<6<1<1<3<2<2< 12<8<7< 11<11< 12<9< 12< 11<8<5<4<4<3<3<9<3<3<3< 10<3<4<3<3< 12<2<2<3<2<2<4<4<4<6<7<6<5<7<5<4<4<4<2<2<2<6<2<2<2<6<2<2<2<2<7<2<2<5<4<3< 10<8<6<8<9< 10<.8< 10<9<9<8<5<4<3<4< 10<4<3<4<9<4<4<3<4<9<3<2< 1020< 177< 122<9<8<6< 12< 12<12<10< 11<10< 10< 18< 315< 30>10000< 99<14< 795< 159< 158< 24< 233< 28>10000< 108< 14< 659< 127<1<1<1<5<4<3<6<5<6<4<5<5<4<3<2<2<1<1<5<1<1<1<4<1<2<1<1<6<1<1<2<1<1<5<4<4<6<5<7<4<6<5<4<3<2<2<1<1<6<1<1<1<5<1<2<1<1<6<1<1< 311<84< 68< 26< 21< 16< 26< 27< 35< 24< 35< 27< 24< 35< 154< 39< 38< 68< 27< 245<84< 95< 41< 114< 37< 37< 71< 38< 191< 71< 85< 27< 23<8<6<5<11<7< 10<9<9<9<7<8< 53<13<13<19<10< 67< 27< 22<13< 37<14<11< 22<8< 42< 17 La- 140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba- 140 La-140 W-4 W-4K W-4K W-4K W-4K W-4K W-4K W-4K W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-5 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 12/30/09 05/27/09 06/30/09 07/29/09 08/27/09 09/30/09 10/28/09 11/24/09 05/27/09 06/30/09 07/29/09 08/26/09 09/30/09 10/01/09 10/29/09 11/24/09 12/30/09 04/22/09 04/29/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 07/01/09 07/07/09 07/15/09<2<3<2<1<1<1<4<1<2<2<2<1<1<5<2<1<1<11<2<2<2<2<2<1<1<2<2<2<3<1<2 <6 <2 <4 <3 <4 < 197<4 <8 <3 <8 <4 <7 <18<3 <8 <2 <4 <3 <6 <316<2 <4 <1 <3 <2 <3 <36<2 <4 < 2 < 3 <2 <3 >10000<1 <3 <1 <2 <1 <2 <73< 6 < 17 < 2 < 6 < 7 < 13 < 6340<2 <3 <1 <2 <2 <3 <85<3 <5 <1 <5 <3 <6 <11<3 <9 <2 <4 <3 <6 <310<2 <5 <2 <3 <2 <4 <28<2 <5 < 1 <3 <2 <3 >10000<2 <4 <1 <2 <2 <3 <81<5 < 12 < 5 < 12 <6 < 10 < 15<3 < 10 <2 <3 <4 <6 <6310< 2 < 6 < 1 <3 <2 <4 < 186<1 <3 <1 <2 <2 <2 <105< 15 < 40 < 9 < 23 < 17 < 30 < 1300< 5 < 18 < 2 <5 <5 <9 >10000<3 < 13 < 1 <3 <4 <7 >10000<3 < 10 <2 <4 <4 <6 <746< 4 < 15 < 2 < 5 < 5 < 8 >10000< 4 < 13 < 2 < 4 <4 < 8 <6500<2 <5 < 1 <2 <2 <3 >10000<2 <6 < 1 <2 <2 <4 >10000<3 <8 <1 <3 <3 <5 <458<2 < 7 <2 <4 <3 <5 <356<3 < 10 <2 <.5 <3 < 6 <279<5 <14 <3 <8 <5 <9 <337< 1 <4 < 1 < 1 <2 <3 >10000<1<3<2<1<1<1<3<1<2<2<2<1<1<5<1<1<1< 10<2<1<2<2<2<1<1<1<1<2<3<1<2<4<2<1<1<1<3<1<2<2<2<1<1<5<1<1<1<11<2<1<2<2<2<1<1<1<1<2<3<1< 109< 31< 156< 37< 38< 47< 1250< 54< 25< 162< 32< 31< 53< 31< 962< 99< 61< 728< 2200< 1270< 257< 839< 1000< 232< 191< 188< 154< 152< 198< 181< 38< 11< 49< 10< 13< 12< 277< 10<8< 54< 10< 15< 20<9< 244< 24< 23< 243< 789< 431< 80< 292< 304< 74< 75< 67< 55< 60< 65< 53 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 w 0, W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 W-51 07/29/09 08/05/09 08/12/09 08/20/09 08/26/09 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/16/09 09/18/09 09/23/09 09/25/09 09/28/09 10/02/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/25/09 12/02/09 12/09/09 12/16/09 12/23/09<1<1<1<1<2<2<1<2<2<2<2<1<3<3<3<3<3<4<2 DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY DRY<1<1<1<1<2<2<3<2<3<3<2<2< 18< 21< 16<14< 17< 20< 10<3<3<3<3<6<84<8< 8<9<7<7<8< 142* 148* 122< 103< 118* 125< 67<1<1<1<1<2<2<1<2<2<2<2<1<3<2<2<2<2<2<2<2<2<2<3<3<3<2<3<4<3<4<2<8<8<7<6<8<9<4<1<-2<1<2<2<2<3<3<4<3<3<3< 23< 26< 21< 18< 22< 26< 13<3<3<2<3<4<3<5<4<6<6<5<4< 41<43< 35< 32< 38< 45< 21>10000>10000>10000>10000>10000>10000< 1180< 514< 943< 568< 502< 4060>10000>10000>10000>10000>10000>10000>10000<1<1<1<1<1<1<1<1<2<2<2<1<2<3<2<2<2<4<1<1<1<1<1<2<1<1<1<2<2<2<1<2<2<2<2<2<3<1< 59< 38< 43< 36< 43< 35< 323* 195< 309< 217< 210< 602>10000>10000>10000>10000>10000>10000>10000< 14<9< 14<7< 14< 11< 94< 79< 83< 88* 58< 208>1 0000>1 0000>10000>10000>10000>10000>10000 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140.... ill I]W-51 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52' W-52 co W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 W-52 12/29/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09<2<1<2<4<4<2<1<2<1<2<3<1<1<2<3<2<1<2<1<2<1<1<1<1<1<1<1<2<2<1<4 <7<2 <4<3 <8<4 <10<4 <11<3 <11<2 <5<3 <8<2 <7<3 <8<5 <13<2 <4<1 <3<3 <7<3 <8<2 <6<1 <3<2 <4<2 <4<3 <7<2 <6<2 <4<2 <4<1 <5<2 <5<3 <8<2 <6<2 <5<2 <6<2 <5<2 <5 <3<1 <2 <2<2 <4 <3<3 <8 <4<5 <9 <5<2 <4 <4<1 <2 <2<1 <4 <3<1 <3 <3<2 <3 <3<3 <7 <5<2 <2 <2<1 <2 <2<2 <4 <3<2 <5 <4<2 <4 <3<1 <2 <2<1 <3 <2<1 <2 <2<2 <4 <3<1 <3 <3<1 <2 <2<1 <2 <2<1 <2 <2<1 <2 <2<2 <4 <3<2 <3 <2<1 <3 <2<2 <4 <2<1 <2 <2<6<3<5<7<9<6<3<5<5<5<9<3<3<5<6<4<3<3<3<6<4<4<3<3<4<5<4<4<4<3< 248< 26< 662< 26< 24>10000>10000< 517< 406< 270< 322< 67< 45< 40<33>10000>10000>1 0000< 413< 572< 941< 447< 94< 1380< 1120< 714< 177< 83* 56< 137<2<1<1<4<4<2<1<2<1<2<3<1<1<2<2<2<1<1<1<2<1<1<1<1<1<1<1<1<1<1<3<1<1<3<5<2<1<2<1<2<3<1<1<2<3<2<1<2<1<2<1<1<1<1<1<1<1<1<2<1< 138< 28< 226< 45< 49< 385< 148< 199< 166< 134< 200< 58< 34< 46< 47< 53< 33<44< 143< 239< 235< 148< 63< 289< 280< 220< 93< 63< 50< 82< 37<9< 80< 14< 13< 131< 52< 69< 57< 45< 64<13<11<14*13< 15< 12< 12< 38< 82< 78< 44< 19< 86< 77< 57< 32< 20< 15< 25 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-h2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE (P W-52 W-52 W-52 W-52 W-52 W-52 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 COLLECTION PERIOD 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 04/29/09 05/01/09 05/06/09 05/13/09 05/20/09 05/27/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09 08/25/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140< 2<2<1<1<1<1<2<2<2<2< 2< 2< 2<1<2<1<2<3<.1<1<2<2<1<1<1<1< 2<1<1<1<2<3<2<2<2<2<4<4<4<3< 2<4<3<2< 2<'2<3<5<2<'2<2<3<2<2<'2<2<2<2<1<1<6<8<6< 6<4<5< 13< 16< 16< 10<5< 12< 11<5<7< 6<8< 13<5<4<5<7<4<4<5<6<'6<5<4<3<1<2<2<2<1<1<2<2<2<2<2<2<2<1<1<1<2<3<1<1<2<'2<1<1<'2<1<1<1<1<1<4<3<3<3<3<3<4<5<5<4<4<4<4<3<3<3<4<6<3<3<5<5<3<2<3<3<4<2< 2<2<3<3<2<2<2<2<4<5<5<4<2<4<4<2<3<2<3<5< 2<2<3<3<2<'2<'2<2<3<2<1<1<4<5<4<4<4<4<7<9<9<7<4<7<7<4<5<4<6<8<4<3<5<5<3<3<4<4<5<3<3<3< 681< 458< 195< 370< 191< 99< 23500< 7470>10000< 838< 19>1 0000>1 0000>10000< 464< 361< 323< 319< 69< 52< 36< 37>10000>10000>1 0000< 542< 530< 714< 373< 217<1<2<1<1<1<1<2<2<2<2<2<2<2<1<1<1<2<3<1<1< 2< 2<1<1<1<1<1<1<1<1<2<2<1<2<1<1<2<2<2< 2<2<2<2<1<1<1<2<3<1<1<2<2<1<1<2<1<1<1<1<1< 269< 181< 107< 163< 105< 74< 1070< 1230< 1600* 282< 28< 552< 409< 173< 188< 147< 153< 192< 48< 43< 39< 46< 44< 46< 46< 186< 200* 185< 123< 89< 51< 50< 33< 38< 29< 18< 363< 359< 565< 91<9* 164* 136< 57< 57* 46< 51< 57* 15< 15* 12< 14* 14< 15* 13* 58* 62< 59< 33* 28 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65. Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-53 W-54 S W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 05/01/09 05/06/09 05/13/09 05/20/09 05/28/09 06/02/09 06/09/09 06/16/09 06/23/09 06/30/09 07/07/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/19/09<1<1<1<1<1<2<2<1<1<1<1<1<1<1<2<2<2<2<1<2<2<2<2<3<2<3<2<2<1<1<2 <7<2 <6<2 <5<2 <5<2 <4<2 <6<2 <6<2 <5<2 <6<1 <5<3 <6<2 <6<1 <4<1 <4<4 <13<3 <10<4 <14<4 <11<2 <5<3 <11<4 <11<2 <7<3 <8<5 <13<3 <9<5 <14<3 <9<2 <5<1 <4<1 <3<1 <2 <2<1 <2 <2<1 <2 <2<1 <3 <2<1 <3 <2<2 <3 <3<1 <3 <2<1 <3 <2<1 <3 <2<1 <2 <2<1 <3 <3<1 <3 <2<1 <2 <2<1 <2 <2<2 <5 <4<2 <4 <3<2 <5 <5<2 <4 <4<1 <2 <2<2 <4 <4<2 <5 <4<1 <3 <3<2 <4 <4<3 <7 <5<2 <3 <3<3 <6 <5<2 <4 <4<2 <4 <2<1 <2 <1<1 <2 <1< 4 < 1850< 4 < 1100< 3 < 590<4 < 130<3 <68<3 <61< 4 < 182<3 <134< 3 < 269< 3 < 150< 5 < 316<4 < 191<3 <85<3 < 38< 7 < 4030< 6 < 717< 8 >10000< 7 >10000< 3 >10000< 6 < 1020< 7 < 1420< 5 < 441< 6 < 323< 9 < 366< 6 < 2220< 9 < 1800<6 < 812< 4 >10000< 3 >10000< 2 >10000<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<2<2<1<2<2<1<2<3<1<2<2<2<1<1<1<1<1<1<1<2<2<1<1<1<1<1<1<1<2<2<2<2<1<2<2<1<2<3<2<2<2<2<1<1< 402< 309< 179< 73< 57< 54< 102< 85< 128<84< 163< 99< 56< 32< 870< 256< 871< 513< 206< 319< 446< 168< 162< 205< 506< 570< 282< 69< 52< 34< 137< 75< 65< 21< 17< 20< 31< 28< 30< 23< 42< 28< 19<10< 239< 80< 276< 165< 62< 94< 141< 53< 52< 74< 120< 143< 99< 21< 14< 14 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 rw W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-54 W-55 W-55 W-55 W-55 W-55 W-55 W-55 (Bottom of Well)W-55 (Middle of Well)W-55 (Top of Well)W-55 W-55 08/25/09 09/02/09 09/09/09 09/16/09 09/23/09 09/30/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12101/09 12/08/09 12/15/09 12/22/09 12/29/09 06/02/09 07/01/09 07/15/09 07/22/09 07/29/09 08/05/09 08/12/09 08/12/09 08/12/09 08/19/09 08/25/09<1<1<2<2<1<2<1<1<1<1<2<1<1<1<1<2<1<1<1<2<2<2<3<2<2<1<1<1<1<2<2<2<3<3<1<3<2<2<2<2<2<3<1<2<3<2<2<2<1<3<2<3<4<3<2<1<1<2<1<4<5<8<7<4<8<6<5<6<4<6<8<4<6<7<7<7<4<3< 11<7< 11< 13<9<5<3<3<4<4<1<1<1<2<1<2<1<1<1<1<2<1<1<1<1<1<1<1<1<2<2<2<2<2<2<1<1<1<1<2<3<4<3<2<3<2<2<2<3<4<3<2<2<3<4<3<2<2<4<3<4<5<4<3<2<2<3<2<2<2<3<3<2<3<3<2<2<2<3<2<2<3<3<2<2<2<1<4<3<4<5<4<2<1<1<2<2<3<4<5<5<3<6<4<3<4<4<3<5<3<4<4<5<4<3<2<7<5<6<9<6<4<2<2<3<3>1 0000< 502< 558< 370< 127< 1490< 1810< 860< 660< 157< 108< 1780< 2030< 1040< 518< 679< 353< 145< 65>10000< 259< 2240< 1660< 891>1 0000>10000>10000>10000>10000<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<2<2<2<2<2<1<1<1<1<1<1<1<2<2<1<1<1<1<1<1<2<1<1<2<2<2<2<1<1<2<2<2<2<2<2<1<1<1<1< 38< 174< 204< 163< 74< 339< 367< 208< 208< 93< 82< 400< 344< 274< 191< 220< 141< 73< 41< 421< 128< 577< 489< 304< 55< 50< 48< 50< 41<9< 53< 50< 54< 19< 142< 141< 65< 60< 22< 24< 106< 94< 87< 46< 60< 46< 24< 11< 127< 41< 180< 169< 97< 21< 14< 15< 14< 14< 13<2 <6 < 1 <3 <2 <4 >10000<2 <2 <47 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE IN, W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-55 W-561 COLLECTION PERIOD 08/28/09 08/31/09 09/02/09 09/04/09 09/08/09 09/09/09 09/11/09 09/14/09 09/16/09 09/18109 09/21/09 09/23/09 09/25/09 09/28/09 09/30/09 10/02/09 10/07/09 10/14/09 10/21/09 10/28/09 11/04/09 11/11/09 11/18/09 11/24/09 12/01/09 12/08/09 12/15/09 12/22/09 12/29/09 09/16/09 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140<2<2<1<1<2<2<1<1<1<1<2<1<1<.2<2<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<2<3<2<2<3<2<2<3<2<2<2<2<2<4<3<2<2<2<1<3<3<1<2<2<2<2<2<2<2<2<5<9<6<5< 10<7<6< 12<7<9<6<5<4< 16< 13<9<8<7<3< 10<9<3<7<5<7<5<5<5<5<6<1<1<1<1<2<2<1<1<1<1<2<1<1<2<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<3<4<2<2<4<4<2<3<4<2<3<2<2<4<3<2<2<3<2<3<3<2<2<3<3<3<2<2<3<3<2<4<2<2<3<3<2<4<3<3<3<2<2<4<3<3<3<3<1<3<3<1<3<2<2<2<2<2<2<2<3<6<4<3<6<5<4<6<5<5<4<4<3<8<7<4<4<5<2<5<5<2<5<4<4<4<3<3<4<4>10000< 1550< 518< 427< 597< 609< 2060< 36700< 328< 22100< 254< 865< 124>10000< 12000< 7360< 4850< 4250< 54< 7960< 4230< 17< 1520< 302< 432< 181< 316< 180< 128< 323<1<2<1<1<1<1<1< 1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<1<1<2<2<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<1<1<2<2<1<1<1<1<1< 41< 403< 195< 163< 244< 219< 377< 2750< 158< 1530< 130< 230< 70< 5530< 1410< 914< 687< 697< 34< 998< 687< 20< 415< 134< 161< 104< 127< 96< 79< 125< 14< 133< 61< 52< 64< 76< 147< 566* 50< 488< 36< 62< 20< 1700< 340* 280* 233< 224<12< 316* 196<6< 119< 39< 56< 31< 35< 34< 25< 48 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE wo W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-561 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 COLLECTION Mn-54 PERIOD 09/18/09 < 1 09/23/09 < 1 09/25/09 < 1 09/28/09 < 2 09/30/09 < 1 10/02/09 < 1 10/07/09 < 2 10/14/09 < 1 10/21/09 < 1 10/29/09 < 1 11/04/09 < 2 11/11/09 < 1 11/18/09 < 2 11/24/09 < 1 12/01/09 < 1 12/08/09 < 2 12/15/09 < 1 12/22/09 < 1 12/29/09 < 1 09/11/09 < 1 09/16/09 < 2 09/18/09 < 2 09/23/09 < 1 09/25/09 < 2 09/28/09 < 1 09/30/09 < 1 10/02/09 < 1 10/07/09 < 1 10/14/09 < 1 10/21/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140<3<2<2<5<3<2<3<1<2<3<3<1<3<2<2<2<1<2<2<2<2<4<2<2<4<2<3<3<1<1< 10<5<4< 17< 10<7< 11<2<4<8<9<2<8<6<6<6<3<4<6<8<6< 14<6<5< 14<8< 10< 13<4<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<3<2<2<4<3<2<3<1<2<3<3<2<3<2<2<3<2<2<3<2<3<3<2<3<3<3<3<3< 2<1<3<2<2<4<4<2<4<1<2<3<3<1<3<2<2<2<1<2<2<3<3<5<2<3<5<3<4<4<1<1<6<4<2<8<6<3<6<2<4<5<5<2<5<4<5<4<2<3<4<5<5<7<3<4<7<4<5<6<2<2< 23500< 158< 118>10000< 10700< 6390< 8180< 83< 131< 6890< 4970< 17< 1640< 826< 405< 261< 217* 150<122< 2570< 332< 34900< 168< 198>10000< 9730< 9760< 7910< 123< 52<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<2<1<2<1<1<2<2<1<1< 1920< 89< 69< 6070< 1180< 764< 1090< 45< 75< 926< 801< 21< 415< 258< 151< 119< 86< 73<77< 494< 142< 2940< 80< 120< 5780< 1140< 1130< 1210< 68< 34< 522< 23< 16< 1970< 270< 256< 331< 15< 18< 350< 196<5< 120< 64< 59< 40< 26< 20< 24< 143< 42< 795< 27< 29< 1660< 304< 331< 348< 22< 10 La- 140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 W-571 COLLECTION Mn-54 PERIOD 10/29/09 < 1 11/04/09 < 2 11/11/09 < 1 11/18/09 < 1 11/24/09 < 1 12/01/09 < 1 12/08/09 <z 1 12/15/09 < 1 12/22/09 < 1 12/29/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140<1<3<1<2<3<1<2<2<2<1<3< 10<2<5<7<5<5<5<4<3<1<2<1<1<1<1<1<1<1<1<2<3<2<2<3<2<2<2<2<2<1<3<1<2<2<2<2<2<2<1<3<6<2<3<5<3<4<3<3<2< 48< 5500< 17< 1090< 893< 331< 208< 325< 175< 78<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1< 34< 867< 21< 287< 246< 134< 111< 132< 93< 49< 10< 202<6< 71< 83< 48< 29< 42< 26< 14 T 01 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-11.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 MCD 04/16/09 < 190 MCD 04/28/09 < 153 MCD 04/29/09 < 157 MCD 05/05/09 < 198 MCD 05/12/09 < 181 MCD 05/19/09 < 182 MCD 05/26/09 < 175 MCD 06/02/09 < 166 MCD 06/08/09 < 158 MCD 06/13/09 < 181 MCD 06/15/09 < 179 MCD 06/22/09 < 158 MCD 06/26/09 < 181 MCD 06/27/09 < 180 MCD 06/28/09 < 178 MCD 06/29/09 < 181 MCD 06/30/09 < 171 MCD 07/01/09 < 183 MCD 07/02/09 < 185 MCD 07/03/09 < 185 MCD 07/04/09 < 116 MCD 07/05/09 < 117 MCD 07/06/09 < 111 MCD 07/07/09 < 108 MCD 07/08/09 < 118 MCD 07/09/09 < 114 MCD 07/10/09 < 117 MCD 07/11/09 < 167 MCD 07/12/09 < 175 MCD 07/13/09 < 165 MCD 07/14/09 < 166 MCD 07/15/09 < 168 MCD 07/16/09 < 167 MCD 07/17/09 < 176 MCD 07/18/09 < 181 MCD 07/19/09 < 182 MCD 07/20/09 < 179 MCD 07/21/09 < 135 MCD 07/22/09 < 164 MCD 07/23/09 < 162 MCD 07/24/09 < 162 MCD 07/25/09 < 165 MCD 07/26/09 < 125 MCD 07/27/09 < 127 MCD 07/28/09 < 159 MCD 07/29/09 < 169 MCD 07/30/09 < 178 MCD 07/31/09 < 173 MCD 08/01/09 < 194 MCD 08/02/09 < 153 MCD 08/03/09 < 149 B-26 TABLE B-1l.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 MCD 08/04/09 < 183 MCD 08/05/09 < 168 MCD 08/06/09 < 159 MCD 08/07/09 < 160 MCD 08/08/09 < 168 MCD 08/09/09 < 151 MCD 08/10/09 < 162 MCD 08/11/09 < 162 MCD 08/12/09 < 154 MCD 08/13/09 < 154 MCD 08/14/09 < 187 MCD 08/15/09 < 188 MCD 08/16/09 < 185 MCD 08/17/09 < 165 MCD 08/18/09 < 163 MCD 08/19/09 < 167 MCD 08/20/09 < 195 MCD 08/21/09 < 195 MCD 08/22/09 < 182 MCD 08/23/09 < 180 MCD 08/24/09 < 166 MCD 08/25/09 < 176 MCD 08/26/09 < 174 MCD 08/27/09 < 175 MCD 08/28/09 < 178 MCD 08/29/09 < 177 MCD 08/30/09 < 193 MCD 08/31/09 < 177 MCD 09/01/09 < 170 MCD 09/02/09 < 172 MCD 09/03/09 < 164 MCD 09/04/09 < 192 MCD 09/05/09 < 192 MCD 09/06/09 < 190 MCD 09/07/09 < 178 MCD 09/08/09 < 191 MCD 09/09/09 < 174 MCD 09/10/09 < 173 MCD 09/11/09 < 184 MCD 09/12/09 < 170 MCD 09/13/09 < 194 MCD 09/14/09 < 190 MCD 09/15/09 < 196 MCD 09/16/09 < 165 MCD 09/17/09 < 175 MCD 09/18/09 < 163 MCD 09/19/09 < 131 MCD 09/20/09 < 140 MCD 09/21/09 < 130 MCD 09/22/09 < 140 B-27 6 TABLE B-11.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION SITE DATE H-3 SR-90 MCD 09/23/09 < 138 MCD 09/24/09 < 136 MCD 09/25/09 < 130 MCD 09/26/09 < 140 MCD 09/27/09 < 171 MCD 09/28/09 < 172 MCD 09/29/09 < 172 MCD 09/30/09 < 169 MCD 10/01/09 < 150 MCD 10/02/09 < 142 MCD 10/03/09 < 150 MCD 10/04/09 < 143 MCD 10/05/09 < 151 MCD 10/06/09 < 164 MCD 10/07/09 < 171 MCD 10/08/09 < 171 MCD 10/09/09 < 177 MCD 10/10/09 < 183 MCD 10/11/09 < 181 MCD 10/12/09 < 179 MCD 10/13/09 < 173 MCD 10/14/09 < 176 MCD 10/15/09 < 168 MCD 10/16/09 < 173 MCD 10/16/09 < 167 MCD 10/17/09 < 166 MCD 10/17/09 < 165 MCD 10/18/09 < 163 MCD 10/18/09 < 185 MCD 10/19/09 < 166 MCD 10/20/09 < 169 MCD 10/21/09 < 162 MCD 10/22/09 < 169 MCD 10/23/09 < 169 MCD 10/24/09 < 168 MCD 10/25/09 < 178 MCD 10/26/09 < 184 MCD 10/27/09 < 182 MCD 10/28/09 < 162 MCD 10/29/09 < 161 MCD 10/30/09 < 158 MCD 10/31/09 < 181 MCD 11/01/09 < 181 MCD 11/02/09 < 182 MCD 11/03/09 < 160 MCD 11/04/09 < 162 MCD 11/05/09 < 183 B-28 TABLE B-I1.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 MCD 11/06/09 < 182 MCD 11/07/09 < 177 MCD 11/08/09 < 187 MCD 11/09/09 < 180 MCD 11/10/09 < 176 MCD 11/11/09 < 178 MCD 11/12/09 < 172 MCD 11/13/09 < 172 MCD 11/14/09 < 174 MCD 11/15/09 < 167 MCD 11/16/09 < 156 MCD 11/17/09 < 167 MCD 11/18/09 < 160 MCD 11/19/09 < 164 MCD 11/20/09 < 164 MCD 11/21/09 < 169 MCD 11/22/09 < 168 MCD 11/23/09 < 168 MCD 11/24/09 < 164 MCD 11/25/09 < 164 MCD 11/26/09 < 172 MCD 11/27/09 < 193 MCD 11/28/09 < 190 MCD 11/29/09 < 192 MCD 11/30/09 < 161 MCD 12/01/09 < 161 MCD 12/02/09 < 193 MCD 12/03/09 < 187 MCD 12/04/09 < 187 MCD 12/05/09 < 185 MCD 12/06/09 < 164 MCD 12/07/09 < 166 MCD 12/08/09 < 166 MCD 12/09/09 < 158 MCD 12/10/09 < 156 MCD 12/11/09 < 158 MCD 12/12/09 < 161 MCD 12/13/09 < 129 MCD 12/14/09 < 163 MCD 12/15/09 < 162 MCD 12/16/09 < 169 MCD 12/17/09 < 168 MCD 12/18/09 < 177 MCD 12/18/09 < 165 MCD 12/19/09 < 166 B-29 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 MCD 12/20/09 < 164 MCD 12/21/09 < 164 MCD 12/22/09 < 165 MCD 12/23/09 < 165 MCD 12/24/09 < 165 MCD 12/25/09 < 166 MCD 12/26/09 < 169 MCD 12/27/09 < 172 MCD 12/28/09 < 169 MCD 12/29/09 < 176 MCD 12/30/09 < 166 MCD 12/31/09 < 167 Sw-i 04/28/09 < 149 Sw-1 04/29/09 < 156 Sw-i 05/05/09 < 199 Sw-i 05/12/09 < 179 SW-i 05/19/09 < 179 SW-1 05/26/09 < 178 SW-1 06/02/09 < 168 SW-1 06/08/09 < 162 Sw-i 06/15/09 < 158 Sw-i 06/22/09 < 158 SW-i 06/26/09 < 181 Sw-i 06/27/09 < 168 Sw-i 06/28/09 < 181 SW-1 06/29/09 < 178 Sw-i 06/30/09 < 168 Sw-i 07/01/09 < 179 Sw-i 07/02/09 < 178 Sw-i 07/03/09 < 186 SW-i 07/04/09 < 118 SW-i 07/05/09 < 200 Sw-i 07/06/09 < 116 SW-i 07/07/09 < 117 Sw-i 07/08/09 < 110 Sw-i 07/09/09 < 120 Sw-i 07/10/09 < 114 SW-1 07/11/09 < 179 Sw-i 07/12/09 < 180 SW-i 07/13/09 < 169 SW-i 07/14/09 < 161 SW-i 07/15/09 < 163 SW-i 07/16/09 < 166 Sw-i 07/17/09 < 168 Sw-i 07/18/09 < 178 B-30 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 SW-1 07/19/09 < 180 SW-1 07/20/09 < 179 SW-1 07/21/09 < 133 SW-1 07/22/09 < 148 SW-1 07/23/09 < 154 SW-1 07/24/09 < 160 SW-i 07/25/09 < 159 Sw-i 07/26/09 < 169 Sw-i 07/27/09 < 126 SW-1 07/28/09 < 161 SW-1 07/29/09 < 161 SW-1 07/30/09 < 181 SW-1 07/31/09 < 181 SW-1 08/01/09 < 181 SW-1 08/02/09 < 161 SW-1 08/03/09 < 161 Sw-1 08/04/09 < 157 SW-1 08/05/09 < 166 SW-1 08/06/09 < 167 SW-1 08/07/09 < 162 SW-1 08/08/09 < 169 SW-1 08/09/09 < 174 SW-1 08/10/09 < 161 SW-1 08/11/09 < 163 SW-1 08/12/09 < 165 SW-1 08/13/09 < 159 SW-1 08/14/09 < 189 SW-1 08/15/09 < 187 SW-1 08/16/09 < 178 SW-1 08/17/09 < 172 Sw-i 08/18/09 < 163 Sw-i 08/19/09 < 164 Sw-i 08/20/09 < 191 Sw-i 08/21/09 < 192 Sw-i 08/22/09 < 183 Sw-i 08/23/09 < 166 Sw-i 08/24/09 < 167 Sw-i 08/25/09 < 178 Sw-i 08/26/09 < 194 Sw-i 08/27/09 < 183 Sw-i 08/28/09 < 171 Sw-i 08/29/09 < 189 Sw-i 08/30/09 < 192 Sw-i 08/31/09 < 192 Sw-i 09/01/09 < 169 B-31 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 SW-1 09/02/09 < 168 Sw-1 09/03/09 < 169 Sw-i 09/04/09 < 190 Sw-i 09/05/09 < 192 Sw-i 09/06/09 < 182 Sw-i 09/07/09 < 193 Sw-i 09/08/09 < 175 SW-1 09/09/09 < 171 SW-i 09/10/09 < 154 Sw-i 09/11/09 < 178 SW-i 09/12/09 < 160 Sw-i 09/13/09*

< 190 Sw-i 09/14/09 < 185 Sw-i 09/15/09 < 194 Sw-i 09/16/09 < 164 Sw-1 09/17/09 < 166 Sw-i 09/18/09 < 166 Sw-i 09/19/09 < 127 Sw-i 09/20/09 < 183 Sw-i 09/21/09 < 138 Sw-i 09/22/09 < 128 SW-i 09/23/09 < 141 Sw-i 09/24/09 < 136 Sw-i 09/25/09 < 124 SW-i 09/26/09 < 126 SW-i 09/27/09 < 128 SW-1 09/28/09 < 174 Sw-i 09/29/09 < 167 Sw-i 09/30/09 < 168 Sw-i 10/01/09 < 166 Sw-i 10/02/09 < 146 Sw-i 10/03/09 < 142 Sw-i 10/04/09 < 148 Sw-i 10/05/09 < 151 SW-i 10/06/09 < 147 SW-i 10/07/09 < 170 Sw-i 10/08/09 < 172 SW-1 10/09/09 < 168 SW-i 10/10/09 < 169 SW-i 10/11/09 < 181 SW-i 10/12/09 < 180 SW-i 10/13/09 < 177 SW-i 10/14/09 < 171 Sw-i 10/15/09 < 173 Sw-i 10/16/09 < 166 B-32 TABLE B-Il.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE SW-1 Sw-1 sw-1 Sw-1 SW-1 Sw-1 Sw-1 SW-1 SW-1 SW-i SW-1 SW-1 sw-1 SW-i SW-1 Sw-1 SW-1 Sw-1 sw-1 Sw-1 SW-1 SW-1 Sw-1 Sw-1 Sw-1 SW-1 SW-i SW-1 Sw-1 Sw-1 Sw-1 SW-1 Sw-1 Sw-1 Sw-1 sw-1 SW-1 SW-i SW-1 SW-1 Sw-1 Sw-1 sw-1 SW-1 Sw-1 COLLECTION DATE 10/16/09 10/17/09 10/17/09 10/18/09 10/18/09 10/19/09 10/20/09 10/21/09 10/22/09 10/23/09 10/24/09 10/25/09 10/26/09 10/27/09 10/28/09 10/29/09 10/30/09 10/31/09 11/01/09 11/02/09 11/03/09 11/04/09 11/05/09 11/06/09 11/07/09 11/08/09 11/09/09 11/10/09 11/11/09 11/12/09 11/13/09 11/14/09 11/15/09 11/16/09 11/17/09 11/18/09 11/19/09 11/20/09 11/21/09 11/22/09 11/23/09 11/24/09 11/25/09 11/26/09 11/27/09 H-3< 165< 168< 164< 168< 164< 169< 170< 167< 180< 168< 168< 180< 181< 179< 161< 165< 159* 178* 182< 179< 163< 162< 188< 178< 182< 181< 180< 181< 180< 170< 170< 171< 164< 154< 166< 163< 165< 161< 169< 169< 169< 165< 162< 182< 184 SR-90 B-33 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 Sw-i 11/28/09 < 187 Sw-i 11/29/09 < 186 Sw-1 11/30/09 < 165 SW-i 12/01/09 < 159 SW-1 12/02/09 < 188 Sw-i 12/03/09 < 187 Sw-i 12/04/09 < 192 SW-i 12/05/09 < 185 SW-i 12/06/09 < 172 SW-i 12/07/09 < 169 SW-i 12/08/09 < 164 Sw-i 12/09/09 < 193 Sw-i 12/10/09 < 161 Sw-i 12/11/09 < 162 Sw-i 12/12/09 < 159 Sw-i 12/13/09 < 154 Sw-i 12/14/09 < 164 Sw-i 12/15/09 < 160 Sw-i 12/16/09 < 168 Sw-i 12/17/09 < 170 Sw-i 12/18/09 < 177 Sw-i 12/18/09 < 166 Sw-i 12/19/09 < 168 Sw-i 12/20/09 < 163 Sw-i 12/21/09 < 167 Sw-i 12/22/09 < 162 Sw-i 12/23/09 < 162 Sw-i 12/24/09 < 157 Sw-i 12/25/09 < 157 Sw-i 12/26/09 < 157 SW-i 12/27/09 < 173 Sw-i 12/28/09 < 172 SW-i 12/29/09 < 173 SW-i 12/30/09 < 171 Sw-i 12/31/09 < 171 Sw-i 03/11/09 < 181 Sw-i 10/02/09 < 176 < 0.3 SW-2 03/09/09 < 191 SW-2 04/27/09 < 154 SW-2 04/28/09 < 156 SW-2 04/29/09 < 151 SW-2 05/05/09 < 197 SW-2 05/12/09 < 180 SW-2 05/19/09 < 179 SW-2 05/26/09 < 182 B-34 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 SW-2 06/02/09 < 168 SW-2 06/08/09 < 156 SW-2 06/13/09 < 182 SW-2 06/15/09 < 181 SW-2 06/22/09 < 158 SW-2 06/26/09 < 184 SW-2 06/27/09 < 178 SW-2 06/28/09 < 177 SW-2 06/29/09 < 172 SW-2 06/30/09 < 179 SW-2 07/01/09 < 179 SW-2 07/02/09 < 182 SW-2 07/03/09 < 187 SW-2 07/04/09 < 118 SW-2 07/05/09 < 115 SW-2 07/06/09 < 115 SW-2 07/07/09 < 112 SW-2 07/08/09 < 125 SW-2 07/09/09 < 121 SW-2 07/10/09 < 110 SW-2 07/11/09 < 176 SW-2 07/12/09 < 173 SW-2 07/13/09 < 165 SW-2 07/14/09 < 160 SW-2 07/15/09 < 168 SW-2 07/16/09 < 170 SW-2 07/17/09 < 181 SW-2 07/18/09 < 178 SW-2 07/19/09 < 183 SW-2 07/20/09 < 134 SW-2 07/21/09 < 130 SW-2 07/22/09 < 165 SW-2 07/23/09 < 160 SW-2 07/24/09 < 161 SW-2 07/25/09 < 161 SW-2 07/26/09 < 168 SW-2 07/27/09 < 123 SW-2 07/28/09 < 159 SW-2 07/29/09 < 165 SW-2 07/30/09 < 171 SW-2 07/31/09 < 179 SW-2 08/01/09 < 198 SW-2 08/02/09 < 164 SW-2 08/03/09 < 164 SW-2 08/04/09 < 181 B-35 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA COLLECTION SITE DATE H-3 SR-90 SW-2 08/05/09 < 171 SW-2 08/06/09 < 174 SW-2 08/07/09 < 170 SW-2 08/08/09 < 168 SW-2 08/09/09 < 169 SW-2 08/10/09 < 161 SW-2 08/11/09 < 162 SW-2 08/12/09 < 156 SW-2 08/13/09 < 159 SW-2 08/14/09 < 182 SW-2 08/15/09 < 185 SW-2 08/16/09 < 186 SW-2 08/17/09 < 171 SW-2 08/18/09 < 168 SW-2 08/19/09 < 167 SW-2 08/20/09 < 194 SW-2 08/21/09 < 193 SW-2 08/22/09 < 180 SW-2 08/23/09 < 174 SW-2 08/24/09 < 159 SW-2 08/25/09 < 177 SW-2 08/26/09 < 182 SW-2 08/27/09 < 170 SW-2 08/28/09 < 183 SW-2 08/29/09 < 192 SW-2 08/30/09 < 182 SW-2 08/31/09 < 195 SW-2 09/01/09 < 175 SW-2 09/02/09 < 170 SW-2 09/03/09 < 167 SW-2 09/04/09 < 194 SW-2 09/05/09 < 187 SW-2 09/06/09 < 193 SW-2 09/07/09 < 180 SW-2 09/08/09 < 178 SW-2 09/09/09 < 176 SW-2 09/10/09 < 169 SW-2 09/11/09 < 169 SW-2 09/12/09 < 169 SW-2 09/13/09 < 193 SW-2 09/14/09 < 194 SW-2 09/15/09 < 192 SW-2 09/16/09 < 162 SW-2 09/17/09 < 173 SW-2 09/18/09 < 164 B-36 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION DATE 09/19/09 09/20/09 09/21/09 09/22/09 09/23/09 09/24/09 09/25/09 09/26/09 09/27/09 09/28/09 09/29/09 09/29/09 09/29/09 09/29/09 E 09/30/09 10/01/09 10/02/09 10/03/09 10/04/09 10/05/09 10/06/09 10/07/09 10/08/09 10/09/09 10/10/09 10/11/09 10/12/09 10/13/09 10/14/09 10/15/09 10/16/09 10/16/09 10/17/09 10/17/09 10/18/09 10/18/09 10/19/09 10/20/09 10/21/09 10/22/09 10/23/09 10/23/09 10/24/09 10/25/09 10/26/09 10/27/09 H-3< 145< 129< 131< 194< 136< 137< 142< 181< 177< 163< 168< 167< 165 IML QC < 154* 167* 172* 181* 149<144* 147* 145* 171* 168* 178* 180* 179* 176* 171* 172* 172* 169* 163.< 168* 161* 168* 169* 169* 172* 161* 178* 189* 189* 168< 179< 181< 179 SR-90< 0.4< 0.4 B-37 TABLE B-11.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION SITE DATE H-3 SR-90 SW-2 10/28/09 < 162 SW-2 10/29/09 < 165 SW-2 10/30/09 < 154 SW-2 10/31/09 < 177 SW-2 11/01/09 < 182 SW-2 11/02/09 < 183 SW-2 11/03/09 < 167 SW-2 11/04/09 < 161 SW-2 11/05/09 < 190 SW-2 11/06/09 < 186 SW-2 11/07/09 < 181 SW-2 11/08/09 < 182 SW-2 11/09/09 < 178 SW-2 11/10/09 < 181 SW-2 11/11/09 < 179 SW-2 11/12/09 < 174 SW-2 11/13/09 < 173 SW-2 11/14/09 < 169 SW-2 11/15/09 < 164 SW-2 11/16/09 < 157 SW-2 11/17/09 < 169 SW-2 11/18/09 < 162 SW-2 11/19/09 < 165 SW-2 11/20/09 < 162 SW-2 11/21/09 < 169 SW-2 11/22/09 < 170 SW-2 11/23/09 < 168 SW-2 11/24/09 < 163 SW-2 11/25/09 < 163 SW-2 11/26/09 < 190 SW-2 11/27/09 < 187 SW-2 11/28/09 < 192 SW-2 11/29/09 < 188 SW-2 11/30/09 < 158 SW-2 12/01/09 < 161 SW-2 12/02/09 < 186 SW-2 12/03/09 < 191 SW-2 12/04/09 < 183 SW-2 12/05/09 < 186 SW-2 12/06/09 < 162 SW-2 12/07/09 < 161 SW-2 12/08/09 < 164 SW-2 12/09/09 < 187 SW-2 12/10/09 < 158 SW-2 12/11/09 < 158 B-38 TABLE B-II.1 CONCENTRATIONS OF TRITIUM AND STRONTIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-3 SW-3 COLLECTION DATE 12/12/09 12/13/09 12/14/09 12/15/09 12/16/09 12/17/09 12/18/09 12/18/09 12/19/09 12/20/09 12/21/09 12/22/09 12/23/09 12/24/09 12/25/09 12/26/09 12/27/09 12/28/09 12/29/09 12/30/09 12/31/09 03/10/09 09/29/09 H-3 156 169 171 163 165 168 169 181 169 164 163 161 162 166 166 174 171 171 170 167 167 186 176 SR-90< 0.6 B-39 TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD J MCD 0 MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD 05/05/09 05/12/09 05/19/09 05/26/09 06/02/09 06/08/09 06/15/09 06/22/09 06/26/09 06/27/09 06/28/09 06/29/09 06/30/09 07/01/09 07/02/09 07/03/09 07/04/09 07/05/09 07/06/09 07/07/09 07/08/09 07/09/09 07/10/09 07/11/09 07/12/09 07/13/09 07/14/09 07/15/09 07/16/09 07/17/09 07/18/09 07/19/09 07/20/09 07/21/09<1<1<3<5<5<1<2<2<4<3<2<3<3<3<3<2<2<4<5<5<2<2<2<4<3<3<3<4<3<3<4<5<9< 12< 11<4<5<5<8<6<6<8< 10<7<8<1 <3<1 <3<4 <6<2 <11<5 <13<1 <3<2 <3<2 <4<4 <7-<2 <5<2 <5<3 <6<3 <7<3 <6<3 <6<2<2<4<6<7<2<2<2<4<3<3<3<4<3<4<3<4<6<9<8<3<3<4<6<5<5<6<7<6<6< 31< 37< 23< 18< 10< 26< 17<11<15<34< 25< 31<34< 25<38<1<1<3<5<6<1<1<2<3<2<2<3<3<2<3<1<2<3<5<5<1<2<2<3<3<2<3<3<3<3< 33< 39< 39< 34< 27< 29< 23<19< 29< 39< 36<43< 48< 40< 49<3 <3 <7 <3 <5<3 <5 <29<2 <3 <41<3<2<2<3<3<3<2<2<3<3<3<3<3<2<3<3<2<2<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<8<7<7<9<8<7<6<7<8<7<7<7<8<7<7<7<7<7<2 <5<3 <5<3 <5<3 <6<3 <6<3 <6<2 <5<2 <5<3 <6<3 <6<3 <5<3 <7<3 <6<3 <6<3 <6<3 <5<3 <5<2 <5<3<3<3<4<4<3<3<3<4<3<3<4<4<3<3<3<3<3<5<5<5<6<6<6<5<5<6<5<6<6<6<5<6<5<6<5< 30< 25< 29< 32< 35< 22< 18< 32< 36< 21< 21< 22< 21< 18< 17< 23< 21< 23<2<2<2<3<3<2<2<2<2<2<2<3<3<2<3<2<2<2<2<2<3<3<3<3.< 2<3<3<3<3<3<3<3<3<3<3<2< 42< 36< 37< 45< 47< 35< 29< 42* 52< 33< 33< 37< 39* 30< 31< 35< 34< 34< 11<13<14<12<8<9<7<6<10<13<11< 13< 14<15< 14<15< 11< 11< 15< 12< 15<13<8<14< 15<13<10<11< 11< 10<9< 11< 10< 11 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD COLLECTION Mn-54 PERIOD 07/22/09 < 3 07/23/09 < 3 07/24/09 < 2 07/25/09 < 2 07/26/09 < 2 07/27/09 < 2 07/28/09 < 3 07/29/09 < 3 07/30/09 < 1 07/31/09 < 1 08/01/09 < 1 08/02/09 < 1 08/03/09 < 1 08/04/09 < 1 08/05/09 < 2 08/06/09 < 1 08/07/09 < 1 08/08/09 < 1 08/09/09 < 1 08/10/09 < 2 08/11/09 < 1 08/1 2/09 < 1 08/13/09 < 2 08/14/09 < 2 08/15/09 < 2 08/16/09 < 2 08/17/09 < 2 08/18/09 < 2 08/19/09 < 2 08/20/09 < 2 08/21/09 < 2 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140<4<4<3<3<3<3<2<3<1<1<2<2<2<1<2<2<1<2<2<2<2<2<3<2<2<2<2<2<2<2<4<9<8<6<6<6<6<6<8<3<3<4<4<5<2<5<5<3<4<4<5<4<4<6<5<5<6<5<6<4<6<8<3<3<2<2<2<3<2<4<1<1<1<1<1<1.< 2<1<1<1<1<2<1<1<2<2<2<2<2<2<2<1<2<6<7<5<5<5<5<5<7<2<2<3<2<3<2<4<3<2<3<3<3<3<3<4<4<4<4<4<4<3<3<5<4<4<3<3<3<3<3<4<1<2<1<2<2<1<2<2<1<2<2<2<2<2<3<2<2<3<2<2< 2<3<4<7<6<5<4<5<5<5<6<2<3<3<3<4<2<4<<3<2<3<3<4<3<3<4<4<4<5<4<4<4<4<7< 24< 26< 19<12< 11< 10<9<11>1 0000>1 0000>1 0000< 68< 64< 37< 35< 33< 20< 40<34<35< 26< 31< 35< 45< 47< 52< 43< 46<34< 152< 241<3<3<2<2<2<2<2<3<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<2<2<2<2<1<1<2<3<3<2<2<2<2<3<3<1<1<1<1<1<1<2<1<1<1<2<2<2<1<2<2<2<2<2<2<1<2<2< 39< 40< 29< 22< 22< 21< 19* 25< 38< 55< 52< 50< 50< 28< 39< 37< 22< 41< 38< 35< 31< 32< 47< 48< 46* 52< 46< 46< 38< 99< 137< 13<12<9<7<8<7<5<8< 11<15< 15< 13< 14<8< 14< 11<7<8<10< 11<9<11<13<13< 15< 12< 14< 13< 10< 24< 41 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE ,p ro MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD COLLECTION Mn-54 PERIOD 08/22/09 < 2 08/23/09 < 1 08/24/09 < 1 08/25/09 < 2 08/26/09 < 1 08/27/09 < 1 08/28/09 < 1 08/29/09 < 1 08/30/09 < 2 08/31/09 < 2 09/01/09 < 1 09/02/09 < 1 09/03/09 < 1 09/04/09 < 2 09/05/09 < 2 09/06/09 < 2 09/07/09 < 1 09/08/09 < 1 09/09/09 < 1 09/10/09 < 2 09/11/09 < 2 09/12/09 < 3 09/13/09 < 3 09/14/09 < 3 09/15/09 < 3 09/16/09 < 2 09/17/09 < 1 09/18/09 < 1 09/19/09 < 2 09/20/09 < 1 09/21/09 < 2<3<2<2<3<1<2<1<2<2<2<1<1<1<2<2<2<1<1<1<3<3<3<4<4<3<2<1<2<2<1<2<9<5<5<7<3<4<4<4<7<7<4<3<4<5<5<5<3<3<3<7<7<8<8<8<8<5<4<3<5<3<4<2<1<1<2<1<1<1<1<2<2<1<1<1< 1<2<2<1<1<1<3<2<3<3<3<3<2<1<1<1<1<1<5<3<3<4<2<3<2<2<3<3<2<2<2<3<3<4<2<2<2<5<5<6<6<6<6<4<3<2<3<2<3<3<2<2<3<2<2<1<:2<2<2<2<1<2<2<:2<3<1<1<1<:3<3<3<4<4<4< 2<2<2<2<2<:2<5<3<3<5<3<4<2<3<4<4<3<2<3<4<4<4<2<3<2<5<5<6<6<6<6<4<3<3<3<3<3< 195< 104< 116< 138>10000>10000>10000< 52< 83< 75< 56< 44< 56< 33< 37< 39< 25< 29< 20< 31< 28< 30< 26< 24< 24< 56< 39<38< 37< 26< 31<2<1<1<2<1<1<1<1<1<1<1<1<1<1<2<2<1<1<1<2<2<2<3<3<3<1<1<1<2<1<1<2<1<1<2<1<2<1<1<2<2<1<1<1<1<2<2<1<1<1<2<2<3<3<3<3<1<1<1<2<1< 2< 140< 67< 70< 94< 37< 50< 41< 43< 56< 53<44< 31< 45< 37< 38< 40< 25< 28< 19< 41< 37< 42< 38< 38< 40< 52< 35< 34<44< 27< 34< 42< 19< 22< 34<14< 13< 11< 12< 18< 17< 12< 10<12< 12<11< 13<7<8<6< 13< 11<14<12< 12< 11*13< 12< 10<8<8<9 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE w MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD COLLECTION Mn-54 PERIOD 09/22/09 < 1 09/23/09 < 1 09/24/09 < 1 09/25/09 < 1 09/26/09 < 1 09/27/09 < 1 09/28/09 < 1 09/29/09 < 1 09/30/09 < 1 10/01/09 < 1 10/02/09 < 1 10/03/09 < 1 10/04/09 < 1 10/05/09 < 1 10/06/09 < 1 10/07/09 < 1 10/08/09 < 1 10/09/09 < 1 10/10/09 < 1 10/11/09 < 1 10/12/09 < 1 10/13/09 < 1 10/14/09 < 1 10/15/09 < 1 10/16/09 < 1 10/16/09 < 1 10/17/09 < 1 10/17/09 < 1 10/18/09 < 1 10/18/09 < 1 10/19/09 < 1<1<1<1<1<2<1<1<2<2<1<1<1<1<2<2<2<2<2<1<2<1<2<2<2<1<1<1<2<1<2<1<4<4<3<3<4<3<3<5<5<3<4<4<4<6<5<4<4<5<4<4<3<5<4<4<3<3<3<6<3<7<4<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<1<2<1<1<1<2<1<2<1<1<1<1<1<1<1<2<2<2<2<3<2<2<2<3<2<2<2<2<3<2<2<2<3<2<2<2<4<3<3<2<2<2<3<1<3<2<1<1<1<1<2<1<1<2<2<1<2<1<2<2<2<2<2<2<2<2<1<2<2<2<1<1<1<2<1<2<1<3<3<2<2<3<2<2<3<3<2<3<2<2<4<4<3<3<4<3<3<2<4<3<3<2<2<2<3<2<4<3< 23< 25< 17< 18< 21< 16< 143< 246< 250< 162< 229< 226< 514< 797< 662< 47< 56< 66< 175< 141< 119< 48< 37< 32< 50< 396< 47< 629< 44< 564< 83< 27< 25< 18< 18< 29< 22< 62< 98< 134< 64< 95< 93< 157< 228< 190< 43< 46< 53< 86< 74< 60< 48< 34< 35< 37< 121< 34< 202< 32< 179< 56<9<8<5<6<8<<7< 24< 32< 36< 22< 30< 23< 47< 59< 63< 14< 13<16* 28< 20<18< 15* 12<9< 11< 45< 10< 61< 10< 48< 15 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE ,w MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD COLLECTION Mn-54 PERIOD 10120/09 < 1 10/21/09 < 1 10/22/09 < 1 10/23/09 < 1 10/24/09 < 1 10/25/09 < 1 10/26/09 < 1 10/27/09 < 1 10/28/09 < 1 10/29/09 < 1 10/30/09 < 1 10/31/09 < 1 11/01/09 < 1 11/02/09 < 1 11/03/09 < 1 11/04/09 < 1 11/05/09 < 1 11/06/09 < 1 11/07/09 < 1 11/08/09 < 2 11/09/09 < 1 11/10/09 < 1 11/11/09 < 1 11/12/09 < 2 11/13/09 < 1 11/14/09 < 1 11/15/09 < 1 11/16/09 < 1 11/17/09 < 1 11/18/09 < 1 11/19/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95<1<1<1<1<2<2<2<1<1<1<1<1<1<2<1<1<1<2<1<2<1<1<1<2<1<1<1<1<2<2<1<3<3<3<2<4<5<5<5<4<4<4<4<3<4<4<3<3<3<4<4<3<4<3<4<3<3<3<3<4<5<4<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<2<1<1<1<1<1<1<1<2<2<2<2<2<2<3<2<2<2<2<2<1<2<2<2<2<3<2<3<2<2<2<2<2<2<2<2<2<2<2<2<1<1<1<2<2<2<2<2<2<1<2<1<2<2<1<1<2<2<2<1<1<1<2<2<1<1<1<2<2<2<3<2<2<2<3<3<3<3<3<3<2<3<2<3<3<2<2<2<3<4<2<2<3<3<3<3<2<2<2<3<2< 75< 71< 48< 39< 57< 374< 323< 318< 67< 61< 78< 151< 114< 129< 107< 79< 71< 40< 44< 67< 79< 68< 74< 55< 29< 102< 79< 68< 102< 159< 131<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1< 49< 48< 34< 31< 46< 127< 131< 122< 49< 51< 54< 78< 58< 74< 55< 50< 50< 37< 39< 59< 48< 50< 46< 44< 30< 57< 50<44< 64< 79< 72 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-Ih.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE 41 MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD COLLECTION Mn-54 PERIOD 11/20/09 < 1 11/21/09 < 1 11/22/09 < 1 11/23/09 < 1 11/24/09 < 1 11/25/09 < 1 11/26/09 < 1 11/27/09 < 1 11/28/09 < 1 11/29/09 < 1 11/30/09 < 1 12/01/09 < 1 12/02/09 < 1 12/03/09 < 1 12/04/09 < 1 12/05/09 < 1 12/06/09 < 1 12/07/09 < 1 12/08/09 < 1 12/09/09 < 1 12/10/09 < 1 12/11/09 < 1 12/12/09 < 1 12/13/09 < 1 12/14/09 < 1 12/15/09 < 1 12/16/09 < 1 12/17/09 < 1 12/18/09 < 1 12/18/09 < 3 12/19/09 < 1<2<1<2<2<1<1<2<2<2<2<2<2<2<1<1<1<1<1<1<2<2<2< 1<2<1<1<2<1<2<3<2<5<4<4<4<3<3<5<5<6<6<5<5<4<4<4<3<3<3<2<6<5<5<4<4<4<3<3<4<4<8<4<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<3<1<3<3<2<3<2<2<3<3<3<3<2<2<2<2<2<2<2<2<2<3<3<3<2<2<3<2<2<2<3<7<2<2<2<2<2<1<1<2<2<2<2<2<2.<2<1<2<1<1<1<1<2<2<2<2<2<2<1<2<2<2<4<2<3<3<3<3<2<2<3<3<3<4<3<3<3<2<3<2<2<2<2<4<3<4<3<3<3<2<2<3<3<6<3< 191< 75< 74< 72<35< 40< 186< 160< 290< 369< 993< 877< 137< 138< 55< 53< 13< 15< 12< 161< 141< 111< 109< 175* 133< 94< 135< 98< 129< 18< 114<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<3<1< 87< 57< 56< 55< 32< 39< 88< 85< 130< 137< 259< 245< 71< 72< 39< 38< 17< 18< 16< 94< 80< 69< 64< 85< 70* 50< 73< 66< 78< 32< 67< 26< 17< 14< 20<10< 12* 26* 26< 40< 35< 84< 70< 22< 20<14< 12<6<6<5< 23< 21< 16< 18< 28< 23< 16< 25< 22< 22< 11< 22 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 i 0)MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD MCD SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 12/20/09 12/21/09 12/22/09 12/23/09 12/24/09 12/25109 12/26/09 12/27/09 12/28/09 12/29/09 12/30/09 12/31/09 05/05/09 05/12/09 05/19/09 05/26/09 06/02/09 06/08/09 06/15/09 06/22/09 06/26/09 06/27/09 06/28/09 06/29/09 06/30/09 07/01/09 07/02/09 07/03/09 07/04/09 07/05/09 07/06/09 07/07/09<1<-1<2<1<1<1<1<1<1<1<1<1<1<2<3<4<5<1<1<2<4<3<3<3<2<3<2<3<2<2<2<2<1<1<2<2<2<2<1<2<1<1<2<2<2<2<4<5<5<1<1<2<4<3<3<3<3<3<3<3<3<3<3<3<4<3<6<4<3<4<3<4<3<4<5<4<4<6<9< 11< 12<3<3<4<8<7<9<7<7<7<7<6<7<6<6<6<1<1.< 2<1<1<1<1<1<1<1<2<1<1<2<4<5<5<1<1<2<3<3<3<3<3<3<3<2<3<3<2<3<2<2<4<3<2<2<2<2<2<2<3<2<3<4<7< 11<.12<2<3<4<8<6<7<5<5<6<5<5<5<5<4<6<2<1<3<2<2<2<1<2<1<2<2<2<2<2<4<5<5<1<2<2<4<3<4<3<3<4<3<3<3<3<3<3<3<2<4<4<2<3<2<3<2<3<3<4<3<4<7<8< 10<2<3<4<7<6<7<5<5<6<5<4<6<6<5<5< 132<77< 122<85< 78< 70< 63< 79< 65< 60< 86< 65< 31< 39< 23< 16< 10< 18< 14< 12< 17< 39<34< 28< 21< 30< 21< 22< 25< 29< 27< 23<1<1<2<1<1<1<1<1<1<1<1<1<1<1<3<5<5<1<1<2<3<2<3<2<2<3<2<2<2<2<2<2<1<1<2<1<1<1<1<1<1<1<1<1<1<2<4<5<5<1<1<2<3<3<3<3<2<3<2<3<3<2<2<2< 70< 51< 86< 63< 45< 52< 39< 53< 50< 43< 57< 47< 31< 41< 39< 37< 26< 20< 19< 19< 32< 52< 43< 38< 32< 42< 31< 35< 38< 42< 38< 35< 20< 16< 27< 14< 16< 14< 10< 19< 17< 16< 17< 16< 10< 15< 12< 12<8<6<6<6< 11< 15<14< 15< 11< 14< 12< 11< 13< 13< 12< 13 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs- 134 Cs- 137 Ba-140 La-140 PERIOD SW-1 SW-i SW-1 SW-1 SW-i SW-1 SW-i SW-i SW-i SW-i SW-i SW-1 SW-1 sw-1-4 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-i 07/08/09 07/09/09 07/10/09 07/11/09 07/12/09 07/13/09 07/14/09 07/15/09 07/16/09 07/17/09 07/18/09 07/19/09 07/20/09 07/21/09 07/22/09 07/23/09 07/24/09 07/25/09 07/26/09 07/27/09 07/28/09 07/29/09 07/30/09 07/31/09 08/01/09 08/02/09 08/03/09 08/04/09 08/05/09 08/06/09<3<3<3<2<2<2<2<2<3<4<3<2<2<2<3<3<3<2<2<3<3<4<1<1<1<1<1<1<2<1<3<3<3<3<2<3<2<2<3<5<4<3<2<2<3<3<4<2<2<3<3<4<1<1<1<2<2<1<2<2<7<8<7<7<6<7<5<6<6< 10<9<7<6<5<8<8<8<6<5<7<6<10<4<3<4<5<4<3<5<4<3<3<3<3<2<3<2<2<2<4<4<2<2<2<4<3<3<3<2<3<3<4<1<1<1<1<1<1<2<1<5<6<5<5<5<4<4<5<5<9<7<5<5<4<6<7<7<5<4<6<6<8<2<2<2<3<3<2<4<3<3<4<3<3<3<3<2<3<3<5<4<3<3.<3<4<4<4<2<2<3<3<5<2<1<1<2<2<1<2<2<5<6<5<5<5<5<4<4<5<8<7<5<4<4<6<6<7<5<4<6<5<8<3<2<3<3<3<2<4<3< 31< 26< 20< 31< 29< 21< 17< 22< 17< 27< 20< 20< 19< 16< 24< 25< 26< 11<9< 13<7< 19>10000>10000>10000<77< 65< 39< 38< 29<3 <3 <44<3 <3 <40<2 <3 <34<2 <3 <42<2 <2 <38<2 <2 <32<2 <2 <26<2 <2 <33<2 <2 <27<4 <4 <47<3 <4 <34<2 <2 <30<2 <2 <29<2 <2 <26<2 <3 <40<3 <3 <40<3 <3 <41<2 <2 <20<2 <2 <19<3 <3 <25<2 <3 <19<4 <4 <36<1 <1 <50<1 <1 <43<1 <1 <47<1 <1 <57<1 <2 <49<1 <1 <35<1 <2 <41<1 <1 <30<11< 14< 10< 15< 14<9<9< 10<8< 15< 12< 10<9<8< 14< 14< 13<7<5<8<6< 12< 15< 12< 15< 13< 12<11< 13< 10 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-Ih.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE cO SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 COLLECTION Mn-54 PERIOD 08/07/09 < 1 08/08/09 < 1 08/09/09 < 1 08/10/09 < 2 08/11/09 < 2 08/12/09 < 2 08/13/09 < 2 08/14/09 < 1 08/15/09 < 2 08/16/09 < 2 08/17/09 < 1 08/18/09 < 2 08/19/09 < 1 08/20/09 < 2 08/21/09 < 2 08/22/09 < 2 08/23/09 < 2 08/24/09 < 1 08/25/09 < 2 08/26/09 < 1 08/27/09 < 1 08/28/09 < 1 08/29/09 < 1 08/30/09 < 2 08/31/09 < 1 09/01/09 < 1 09/02/09 < 1 09/03/09 < 1 09/04/09 < 1 09/05/09 < 1 09/06/09 < 2<1<2<2<2<2<2<3<2<2<2<2<2<2<3<3<3<2<2<3<2<2<2<1<2<2<1<1<1<1<2<2<4<5<4<6<6<4<6<4<6<6<5<5<4<7<8<9<7<5<6<5<4<5<3<4<4<2<3<3<3<4<1<2<1<2<2<2<2<1<2<2<1<2<1<2<2<2<2<2<2<1<1<2<1<1<1<1<1<1<1<1<2<3<3<4<4<4<4<3<4<4<3<4<3<4<4<5<3<3<4<3<3<2<2<3<3<1<2<2<3<3<2<2<2<2<2<2<2<2<3<2<2<2<2<3<3<3<2<2<3<2<2<1<1<2<2<1<1<2<2<2<3<3<3<4<4<4<.4<3<4<4<4<4<3<5<5<6<4<4<4<3<3<3<2<3<3<2<2<3<3<3< 24< 32< 28< 36< 37< 29< 37< 40< 50< 50< 36< 40< 31< 166< 181< 189< 145< 119< 136>10000< 66>10000< 48< 69< 51< 32< 40< 47< 29< 32<1<1<1<1<2<2<2<1<2<2<1<2<1<2<2<2<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<2<2<1<2<2<1<2<2<2<2<2<2<1<2<1<1<1<1<1<1<1<1<1<1<2< 27< 37< 29< 43< 39< 32< 44< 39< 51< 51< 38< 40< 37< 101< 105< 122< 91< 77< 90< 58< 54< 39< 39< 59< 47< 29< 32< 38< 31< 32<8< 13<8< 15<13< 13< 13< 13< 14< 13<11<14<9< 29< 35< 31< 27< 25< 24< 14< 16< 13<12< 16< 14<8<8<14<9<9< 13 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140<6 <2 <4 <3 <4 <36<2 <2 <43 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE CD SW-1 SW-1 SW-I SW-1 SW-1 SW-1 SW-1 SW-l SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 COLLECTION Mn-54 PERIOD 09/07/09 < 1 09/08/09 < 1 09/09/09 < 1 09/10/09 < 2 09/11/09 < 3 09/12/09 < 2 09/13/09 < 3 09/14/09 < 3 09/15/09 < 3 09/16/09 < 2 09/17/09 < 2 09/18/09 < 1 09/19/09 < 2 09/20/09 < 1 09/21/09 < 1 09/22/09 < 1 09/23/09 < 1 09/24/09 < 1 09/25/09 < 1 09/26/09 < 1 09/27/09 < 1 09/28/09 < 1 09/29/09 < 1 09/30/09 < 1 10/01/09 < 1 10/02/09 < 5 10/02/09 < 1 10/03/09 < 1 10/04/09 < 1 10/05/09 < 1 10/06/09 < 1<1<1<1<2<3<2<4<4<3<2<2<2<2<2<2<1<2<1<2<2<1<1<1<1<2<5<1<1<2<2<2<3<3<3<5<8<5<9<9<7<5<5<4<5<4<4<3<4<3<4<3<3<5<4<4<5< 10<4<4<6<7<6<1<1<1<2<3<2<4<3<2<1<2<1<2<1<1<1<2<1<1<1<1<1<1<1<1<5<1<1<1<1<1<2<2<2<4<5<4<7<6<5<3<4<3<3<3<4<2<3<3<3<3<2<2<2<2<2<9<2<2<2<3<2<1<1<1<2<3<2<4<4<3<2<2<2<2<2<2<1<2<2<2<2<1<2<2<2<2<5<2<1<2<3<2<2<2<2<4<6<5<7<7<5<4<4<3<3<3<3<2<4<2<3<3<2<3<2<3<3<8<3<3<3<4<4< 25< 22< 21<22< 27< 24< 25< 24< 19< 51< 52< 43< 42<34<35< 18<22< 18< 25< 21< 17< 193< 189< 215<222<9< 195< 185< 634< 946< 689<1<1<1<2<2<2<3<3<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<4<1<1<1<1<1<1<1<1<2<3<2<4<3<3<2<1<1<2<1<2<1<2<1<1<1<1<1<1<1<1<5<1<1<1<1<1< 25< 22< 22< 27< 38< 33< 40< 39< 31< 46< 49< 40<44< 37< 38< 23< 29< 20< 30< 24< 22< 91< 86< 92< 111< 24< 102<77< 179< 274< 202<6<6<7<9< 13<9< 12< 13< 11< 17< 13< 12< 14< 11< 11<7<9<6<8<8<5< 26< 25< 31< 32<8< 29< 22< 57< 78< 67 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE 01 0 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-1 Sw-1 SW-1 SW-1 SW-1 Sw-1 SW-1 sw-1 Sw-1 Sw-1 Sw-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-1 Sw-1 Sw-i Sw-i SW-1 SW-1 SW-1 SW-1 COLLECTION Mn-54 PERIOD 10/07/09 < 1 10/08/09 < 2 10/09/09 < 2 10/10/09 < 1 10/11/09 < 1 10/12/09 < 1 10/13/09 < 1 10/14/09 < 1 10/15/09 < 2 10/16/09 < 1 10/16/09 < 1 10/17/09 < 1 10/17/09 < 1 10/18/09 < 1 10/18/09 < 1 10/19/09 < 1 10/20/09 < 1 10/21/09 < 1 10/22/09 < 1 10/23/09 < 1 10/24/09 < 1 10/25/09 < 1 10/26/09 < 1 10/27/09 < 1 10/28/09 < 1 10/29/09 < 1 10/30/09 < 1 10/31/09 < 1 11/01/09 < 1 11/02/09 < 1 11/03/09 < 1<2<2<2<2<1<1<1<2<2<1<2<1<2<1<2<1<1<1<1<1<2<2<1<1<1<2<2<2<2<1<2<4<6<5<5<3<3<3<4<5<3<4<3<5<3<5<3<5<3<2<3<4<6<4<4<3<4<4<4<5<4<6<1<2<1<1<1<1<1<2<2<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<3<3<3<3<2<2<2<3<3<2<2<2<3<2<3<1<2<2<1<2<3<3<2<2<2<2<3<2<3<2<2<2<2<2<2<1<1<1<2<2<1<2<1<2<1<2<1<2<2<1<1<2<2<2<2<1<2<2<2<2<1<2<3<4<4<3<3<2<3<3<4<2<3<2<4<3<3<2<3<2<2<2<3<4<3<2<3<3<3<3<4<2<3< 58< 62< 62< 190< 129< 105< 32< 44< 44< 53< 435< 56< 574< 58< 462< 57< 90< 60< 38< 38< 51< 406< 249< 233< 62< 63< 67<133< 171< 113< 846<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<1<1<1<1<2<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1< 54< 60< 57< 89< 67< 61< 31< 43< 44< 40< 142< 42< 199< 40< 174< 38< 62< 46< 29< 34< 48< 154< 104< 91< 42< 51< 54< 76< 93< 70< 238< 14< 16< 17< 27< 24<18<9< 16< 14<11< 41<9< 68< 12< 44< 13< 20< 10< 10<9< 14< 39< 32< 32< 11< 16< 16< 19< 28< 18< 69 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE 0.n SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-1 Sw-i SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-i SW-1 SW-1 COLLECTION Mn-54 PERIOD 11/04/09 < 1 11/05/09 < 1 11/06/09 < 1 11/07/09 < 1 11/08/09 < 2 11/09/09 < 1 11/10/09 < 1 11/11/09 < 1 11/12/09 < 1 11/13/09 < 1 11/14/09 < 1 11/15/09 < 1 11/16/09 < 1 11/17/09*

< 1 11/18/09 < 1 11/19/09 < 1 11/20/09 < 1 11/21/09 < 1 11/22/09 < 1 11/23/09 < 1 11/25/09 < 1 11/26/09 < 1 11/27/09 < 1 11/28/09 < 1 11/29/09 < 2 11/30/09 < 1 12/01/09 < 1 12/02/09 < 1 12/03/09 < 1 12/04/09 < 2 12/05/09 < 1<1<1<2<1<2<2<1<1<1<1<1<1<1<1<2<2<1<2<1<1<1<2<2<2<2<2<2<2<2<2<1<4<4<4<3<5<5<3<3<4<3<2<3<3<3<5<5<4<5<4<3<2<5<5<5<6<6<4<5<5<5<4<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<2<2<3<2<3<3<1<2<3<2<2<2<2<2<3<3<2<3<2<2<1<2<3<3<3<2<2<3<2<3<2<2<1<2<1<2<2<1<1<2<2<1<1<1<1<2<2<2<2<2<1<1<2<2<2<2<2<2<2<2<2<2<3<2<3<2<4<4<2<2<3<2<2<2<2<2<3<3<3<3<2<2<2<3<3<4<3<3<3<3<3<4<3< 87< 76< 53<37< 63< 302< 65< 52<38< 31< 31< 79< 75< 81< 174< 163< 129< 83< 67< 47< 30< 187< 196< 157< 283< 965< 860< 113< 122<83< 50<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1< 57* 52< 47< 29* 56* 148< 43* 32< 35< 34< 26< 47<.48< 47< 90< 76< 73< 64< 46< 33< 26< 93< 99< 87< 145< 224< 240< 72< 82< 61< 37<18<14<12<10* 16< 22<11<12<10<8<8<16<14*15< 23< 32< 25< 21< 14<10<8< 27< 28< 24< 46< 79< 46< 24< 29< 21< 12 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE OJ m Ii SW-i SW-1 SW-i SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 Sw-i SW-1 Sw-i Sw-i SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 SW-1 sw-i SW-1 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 12/06/09 < 1 12107/09 < 1 12/08/09 < 1 12/09/09 < 1 12/10/09 < 1 12/11/09 < 1 12/12/09 < 1 12/13/09 < 1 12/14/09 < 1 12/15/09 < 1 12/16/09 < 1 12/17/09 < 1 12/18/09 < 2 12/18/09 < 3 12/19/09 < 1 12/20/09 < 1 12/21/09 < 1 12/22/09 < 2 12/23/09 < 1 12/24/09 < 1 12/25/09 < 1 12/26/09 < 1 12/27/09 < 1 12/28/09 < 1 12/29/09 < 1 12/30/09 < 1 12/31/09 < 1 05/05/09 < 1 05/12/09 < 1 05/19/09 < 4 05/26/09 < 4<1<1<1<1<1<2<2<1<2<2<2<1<2<4<1<1<1<2<2<1<1<1<2<2<1<1<2<1<1<4<4<2<2<3<4<3<6<5<3<5<4<4<5<6<9<4<4<3<5<4<4<3<3<4<4<4<3<4<4<3<10<11<1<1<1<1<1<2<1<1<1<1<1<1<1<4<1<1<1<1<2<1<1<1<1<1<1<1<1<1<1<4<4<2<2<2<2<2<3<3<2<2<2<2<2<3<8<2<2<2<3<3<2<2<2<2<3<2<2<3<2<2<8<9<1<1<1<2<2<2<2<1<2<2<2<2<3<4<2<1<1<2<2<1<1<1<2<2<2<1<2<2<1<5<5<2<2<2<3<2<4<3<2<3<3<3<3<4<7<3<3<2<4<4<3<3<2<3<2<3<2<3<3<3<8<7 11 11 12 105 87 132 114 116 160 135 139 125 168 20 123 106 74 90 85 87 70 52 92 73 64 45 79 28 31 32 15<1<1<1<1<1<1<1<1<1<1<1<1<1<3<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<3<4<1<1<1<1<1<1<1<1<1<1<1<1<2<3<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<4<4<15<17<15< 63* 51< 79< 73< 62< 76< 67< 76< 78< 96< 34< 62< 60< 43< 65< 62< 59< 48< 38< 71< 50< 46< 35* 50< 29< 28< 55< 34<4<5<6< 19<15< 18< 23< 19< 21< 19< 21< 22< 29< 12< 22* 14< 15< 18< 18<14<14<11< 19<14<14<6< 16<10<8< 13<13 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 ,?' SW-2 lSW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 06/02/09 06/08/09 06/15/09 06/22/09 06/26/09 06/27/09 06/28/09 06/29/09 06/30/09 07/01/09 07/02/09 07/03/09 07/04/09 07/05/09 07/06/09 07/07/09 07/08/09 07/09/09 07/10/09 07/11/09 07/12/09 07/13/09 07/14/09 07/15/09 07/16/09 07/17/09 07/18/09 07/19/09 07/20/09 07/21/09 07/22/09<6<1<1<2<3<2<3<3<3<2<3<3<3<3<2<2<2<3<3<3<3<2<2<2<3<3<3<2<2<3<3<4 <11<2 <4<2 <4<2 <5<4 <8<3 <6<3 <7<3 <8<4 <8<3 <7<3 <7<3 <7<4 <7<3 <8<2 <6<3 <7<3 <6<3 <5<3 <7<3 <7<3 <8<2 <5<2 <6<3 <7<3 <6<4 <8<3 <6<2 <5<2 <6<4 <10<4 <8<5 <12<.1 < 2<1 <3<2 <4<3 <7<3 <5<2 <5<3 <6<3 <7<2 <5<3 <6<2 <5<3 <5<3 <6<2 <5<3 <5<2 <4<2 <5<3 <6<2 <5<4 <5<3 <4<2 <5<3 <5<3 <5<4 <6<3 <5<2 <4<2 <4<3 <8<3 <6<5<2<2<2<4<3<3<3<4<3<3<3<3<3<3<3<3<3<3<3<3<2<3<3<3<3<3<2<3<4<10<3<3<4<6<5<6<6<6<6<6<5<6<5<5<6<5<5<5<6<5<4<5<5<5<6<6<4<4<8<8< 23< 17<10< 17< 28< 25< 30< 39< 31< 27< 30< 33< 29< 26< 28< 29< 18< 24< 41< 32< 17< 17< 20< 17< 22< 18< 17< 18<33<5<1<1<2<3<2<2<3<3<3<2<2<2<2<2<2<2<2<2<2<3<2<2<2<3<3<3<2<2<3<6<1<2<2<3<2<2<3<3<3<3<2<3<3<2<2<2<3<2<3<3<2<2<3<3<3<3<2<2<3< 23< 26< 23*18< 33< 38< 39< 42< 49< 43< 43< 39< 45< 43< 34< 42< 38< 32< 37< 48< 41< 26* 27* 31* 29< 35* 28< 25< 27* 50<7<7<7<6<9<12<8<14<15<12<14<13* 14* 12*13<11<10<8<8<15<14<9<9<10.<9<13<9<8<9< 15< 14< 4 < 6 < 27 < 3 < 3 < 39 BOLDED VALUES INDICATE THE LLD WAS NOT MET a TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE ,T 01 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 07/23/09 < 3 07/24/09 < 4 07/25/09 < 2 07/26/09 < 2 07/27/09 < 2 07/28/09 < 3 07/29/09 < 4 07/30/09 < 1 07/31/09 < 1 08/01/09 < 1 08/02/09 < 1 08/03/09 < 1 08/04/09 < 1 08/05/09 < 1 08/06/09 < 1 08/07/09 < 2 08/08/09 < 2 08/09/09 < 2 08/10/09 < 2 08/11/09 < 2 08/12/09 < 1 08/13/09 < 2 08/14/09 < 2 08/15/09 < 1 08/16/09 < 2 08/17/09 < 2 08/18/09 < 2 08/19/09 < 2 08/20/09 < 2 08/21/09 < 2 08/22/09 < 2 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95<3<4<3<3<2<3<4<1<2<1<2<2<1<2<2<2<2<2<2<2<2<2<2<2<2<2<2<2<3<2<2<8< 10<6<6<5<6<9<4<5<3<4<4<3<5<5<5< 4<4<5<5<5<6<6<4<5<5<6<6<7<6<8<3<4<3<2<2<3<4<1<1<1<1<1<1<2<1<2<1<1<1<2<2<3<2<1<2<2<2<2<1<2<2<5<8<5<5<4<6<9<2<3<2<3<3<2< 3.<3<3<3<3<3<4<3<4<4<3<3<3<4<4<4<4<4<3<5<3<3<2<3<5<1<2<1<2<2<1<2<2<2<2<2<2<2<2<2<3<2<2<2<2<3<3<3<3<6<7<5<5<4<6<8<2<3<3<3<3<2<3<3<4<3<3<4<3<3<4<4<4<4<4<4<4<5<4<5< 24< 31<12<14<10<9<15>10000>10000>10000< 58< 63< 41< 33< 33<34<34< 31<33<34< 27<34< 56< 41< 40< 42< 42<44< 186< 134< 158<3<4<2<2<2<2<4<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<2<1<2<2<2<2<2<1<2<3<4<2<3<2<3<4<1<1<1<1<1<1<1<1<2<2<1<1<2<1<2<2<2<2<2<2<2<2<2<2< 37* 48* 21< 25<19<19* 32< 48< 59<44* 50* 52< 34< 33< 35< 37< 35< 30< 38< 37* 31< 39< 54* 38< 41< 43< 46< 44< 112< 85< 109<11<14<6<7<6<6<10<15<14<13<14< 14<10<12<11*12<12<10<15<12<10*13<13*12<9<15<11< 13< 42< 28< 31 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE T 01 oL SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 08/23/09 < 1 08/24/09 < 1 08/25/09 < 2 08/26/09 < 1 08/27/09 < 1 08/28/09 < 1 08/29/09 < 1 08/30/09 < 1 08/31/09 < 1 09/01/09 < 1 09/02/09 < 1 09/03/09 < 1 09/04/09 < 2 09/05/09 < 1 09/06/09 < 2 09/07/09 < 1 09/08/09 < 1 09/09/09 < 1 09/10/09 < 3 09/11/09 < 2 09/12/09 < 2 09/13/09 < 3 09/14/09 < 3 09/15/09 < 3 09/16/09 < 1 09/17/09 < 1 09/18/09 < 1 09/19/09 < 1 09/20/09 < 1 09/21/09 < 1 09/22/09 < 2 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95<2<2<2<2<1<2<1<2<2<1<1<2<2<2<2<2<1<1<3<2<3<4<3<3<2<2<2<2<2<1<2<5<5<6<3<4<5<4<4<4<4<4<3<5<3<5<4<4<4<7<6<6<9<8<7<5<6<5<5<4<4<4<1<1<2<1<1<1<2<1<2<1<1<1<2<1<2<1<1<1<2<2<2<3<3<2<1<2<2<2<2<1<2<3<3<3<2<2<3<3<3<3<2<2<2<3<3<4<2<2<2<5<4<4<7<6<6<3<3<3<3<3<3<3<2<2<2<2<2<2<2<2<2<2<2<2<2<2<2<2<1<1<3<3<3<4<3<3<2<2<2<2<2<2<2<4<4<4<3<2<3<3<3<3<3<3<3<4<3<4<3<2<3<6<4<5<7<6<6<3<3<3<3<3<3<3< 129< 104< 121>1 0000>1 0000>1 0000< 52< 59< 59< 55< 50< 61< 36< 32< 35< 36< 26< 23< 31< 23< 25< 31<22<22< 53< 46< 43<33< 35< 26< 30<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<1<1<1<2<2<2<3<2<3<1<1<1<1<1<1<1<1<1<2<1<1<1<1<1<2<1<1<1<2<1<2<1<1<1<3<2<2<4<3<3<1<1<1<1<1<1<2< 88< 68< 77< 47< 39< 51< 43< 53< 42< 44< 39< 48< 37< 34< 38< 37< 26< 23< 42< 31< 33< 48< 35< 36<44< 45< 42< 33< 29< 25< 35< 23< 18< 23< 13< 13<14<16< 13*17<12< 12< 14<13< 10< 14* 12<9<8< 12<11<10< 12< 12<10< 15< 14< 14< 12< 11<8<8 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET IF REPORTED AS >10,000, RESULT NOT QUANTIFIED TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA T SITE SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 09/23/09 < 1 09/24/09 < 1 09/25/09 < 1 09/26/09 < 1 09/27/09 < 1 09/28/09 < 1 09/29/09 < 3 09/29/09 < 4 09/29/09 < 1 EIML QC 09/29/09 < 2 09/30/09 < 1 10/01/09 < 1 10/02/09 < 1 10/03/09 < 2 10/04/09 < 1 10/05/09 < 1 10/06/09 < 2 10/07/09 < 1 10/08/09 < 1 10/09/09 < 1 10/10/09 < 1 10/11/09 < 1 10/12/09 < 1 10/13/09 < 1 10/14/09 < 2 10/15/09 < 1 10/16/09 < 1 10/16/09 < 1 10/17/09 < 1 10/17/09 < 1 10/18/09 < 1<2<2<1<1<1<1<3<4<2<4<2<2<1<3<2<2<4<1<1<2<1<1<1<1<2<2<1<2<1<3<1<4<5<3<3-< 4<4<7<9<5<6<5<5<3<9<5<6< 12<3<4<4<4<3<3<4<5<4<4<7<2< 11<2<2<2<1<1<1<1<4<5<1<3<1<1<1<2<1<1<2<1<1<1<1<1<1<1<2<1<1<1<0<2<1<3<3<3<2<2<2<6<9<2<5<2<2<2<4<2<2<5<2<2<3<2<2<2<2<4<3<2<3<2<4<2<2<2<1<2<2<2<4<5<2<3<2<2<1<3<2<2<5<2<2<2<1<1<1<2<3<2<1<2<1<.4<1<3<3<3<2<3<2<7<9<3<5< 3<3<3<5<3<4<8<3<3<3<3<2<2<3<5<3<3<4<2<6<2< 24< 21< 20< 23< 19< 163<7< 11< 251<9< 238< 245< 185< 384< 605< 655< 1330< 50< 49< 51< 130< 117< 131< 36< 52<33< 65< 659< 46< 4900< 42<1<1<1<1<1<1<3<5<1<2<1<1<1<1<1<1<2<1<1<1<1<1<1<1<2<1<1<1<1<1<1< 27< 29< 20< 28< 24< 72< 18< 27< 114< 22< 121< 120< 89< 171< 195< 204< 392< 39< 40< 39< 70< 65< 62< 35< 46< 36< 47< 223< 29< 781< 30<8<9<6<6<7< 25<5<9< 35<4< 32< 30< 28< 70< 64< 73< 149< 11< 14< 12< 20< 22< 19<9< 16< 11< 14< 70<9< 243<9 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE T c-n SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 10/18/09 < 1 10/19/09 < 1 10/20/09 < 1 10/21/09 < 1 10/22/09 < 1 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 10/23/09 10/24/09 10/25/09 10/26/09 10/27/09 10/28/09 10/29/09 10/30/09 10/31/09 11/01/09 11/02/09 11/03/09 11/04/09 11/05/09 11/06/09 11/07/09 11/08/09 11/09/09 11/10/09 11/11/09 11/12/09 11/13/09 11/14/09 11/15/09 11/16/09 11/17/09 11/18/09<2<1<1<2<1<1<1<1<2<2<1<2<1<1<2<1<1<1<2<1<1<1<1<1<1<2<2<2<1<1<1<3<5<4<4<4<4<3<4<5<4<7<3<4<4<4<5<3<4<4<5<3<4<3<3<3<2<4<4<4<3<4<5<8<2<2<2<2<2<2<2<2<2<3<2<2<2<2<2<2<2<2<3<2<2<2<2<2<1<3<3<2<2<2<3<2<1<1<2<2<1<1<1<2<2<1<2<2<2<2<1<2<2<2<1<2<1<1<1<1<2<2<2<2<1<2<3<3<3<3<2<3<2<3<3<4<2<3<3<2<3<2<2<3<3<3<3<3<2<2<2<3<3<3<2<3<3< 490< 82< 63< 74< 56< 50< 47< 305< 282< 386< 46< 73< 60< 155< 160< 113< 91< 106< 98< 40< 46< 39< 64< 63< 56< 41< 39< 48< 98< 88< 117<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1 168 58 42 57 43 42 38 113 110 143 33 52 44 86 80 66 56 60 64 36 44 32 45 42 35 39 38 38 56 58 76< 39< 20<12< 16< 14< 11< 12*<34< 25< 51<8< 14< 10< 21< 22<18< 13< 19< 23<9<11< 12<12<13< 13< 10< 11< 13< 15< 16< 16 1-131 Cs-134 Cs-137 Ba-140 La-140< 1 <4 <3 < 5 <322 < 2 <2 < 165 <52 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE ,o SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 COLLECTION Mn-54 PERIOD 11/19/09 < 1 11/20/09 < 1 11/21/09 < 1 11/22/09 < 1 11/23/09 < 1 11/24/09 < 1 11/25/09 < 1 11/26/09 < 1 11/27/09 < 1 11/28/09 < 1 11/29/09 < 1 11/30/09 < 1 12/01/09 < 1 12/02/09 < 1 12/03/09 < 1 12/04/09 < 1 12/05/09 < 1 12/06/09 < 1 12/07/09 < 1 12/08/09 < 1 12/09/09 < 1 12/10/09 < 1 12/11/09 < 1 12/12/09 < 1 12/13/09 < 1 12/14/09 < 1 12/15/09 < 1 12116/09 < 1 12/17/09 < 1 12/18/09 < 2 12/18/09 < 4<2<2<2<1<2<1<1<2<1<2<2<2<2<2<2<1<1<1<1<1<1<2<2<2<2<1<1<1<1<2<5<4<5<4<4<5<3<3<5<4<5<4<6<5<4<4<3<4<3<3<2<4<5<4.< 4<4<4<3<4<4<7<11<1<1<1< 1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<4<2<2<2<2<2<2<2<2<2<3<3<2<2<3<2<2<2<2<2<2<2<3<2<3<2<2<2<2<2<4<9<2<2<2<1<2<1<1<2<2<2<2<2<2<2<2<1<2<1<1<1<2<2<2<2<2<2<1<1<1<3<6<3<4<3<2<3<2<2<3<3<4<3<3<3<3<3<2<3<2<2<1<3<4<3<3< 3<2<3<3<2<5<9< 149< 170< 67< 57< 75< 42< 45< 158< 116< 337< 255< 1070< 824< 141< 179< 49< 78<12<13.< 9< 105< 141< 121< 128< 172< 168< 111< 137< 113< 198< 26<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<1<2<4<1<1<1<1<2<1<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<2<1<1<1<1<1<1<1<2<4< 87< 95* 52* 41< 57< 39< 35< 87< 66< 131< 118< 284< 221<77< 88< 38< 52<16<16<13< 63< 82< 77< 78<77< 80< 60< 74< 66< 125* 46< 23< 33<18<11* 20<10<10* 29<18< 46< 37< 79< 57< 22< 23<10<15<5<6<4< 18< 18< 17< 17< 33< 19< 15< 22< 17< 31< 13 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BOLDED VALUES INDICATE THE LLD WAS NOT MET TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF OYSTER CREEK GENERATING STATION, 2009 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 SW-2 w OY-SW-3 COLLECTION Mn-54 PERIOD 12/19/09 < 1 12/20/09 < 1 12/21/09 < 1 12/22/09 < 2 12/23/09 < 2 12/24/09 < 1 12/25/09 < 1 12126/09 < 1 12/27/09 < 1 12/28/09 < 1 12/29/09 < 1 12/30/09 < 1 12/31/09 < 1 09/29/09 < 5 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140<2<1<1<2<2<1<1<2<1<1<1<2<2<5<4 <1 <2 <2 <3<3<3<5<7<4<4<4<5<3<3<4<4<10<1<1<2<2<1<1<1<1<1<1<1<1<5<2<2<3<3<2<2<2<3<2<2<3<3<9<1<1<2<2<1<1<1<2<2<1<2<2<5<3<3<3<5<3<2<3<3<3<2<4<3<8< 113 < 1 < 1 < 74< 103 < 1 < 1 < 63< 90 < 1 < 1 < 55< 98 < 1 < 2 < 72< 110 < 2 < 2 < 78< 79 < 1 < 1 < 49< 69 < 1 < 1 < 46< 69 < 1 < 1 < 53<84 <1 <1 <54<77 <1 <1 <55< 50 < 1 < 1 < 37< 83 < 1 < 2 < 60< 69 < 1 < 1 < 52<10 <4 <5 <25< 21< 20< 17< 24< 23< 15< 13< 15< 15< 16< 10< 12< 15<8 BOLDED VALUES INDICATE THE LLD WAS NOT MET