ML061250293

Annual Radiological Environmental Operating Report No. 21 for 2005

ML061250293
Person / Time
Site:	Limerick
Issue date:	12/31/2005
From:	Teledyne Brown Engineering
To:	Exelon Nuclear, Office of Nuclear Reactor Regulation
References
Download: ML061250293 (99)

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Docket No: 50 352 50-353 LIMERICK GENERATING STATION UNITS -and 2 Annual Radiological Environmental Operating Report Report No. 21 1 January Through 31 December 2005 Prepared By Teledyne Brown Engineering Environmental Services Exek nSM Nuclear Limerick Generating Station Sanatoga, PA 19464 April 2006

Exelon Nuclear www.exeloncorp.coM Exekb~n. Nuclear Limerick Generating Station P.O. Box 2300 TS 6.9.1.7 Pottstown, PA 19464 April 28, 2006 IJ. S. Nuclear Regulatory Commission Attn: Document Control Desk Nashington, DC 20555 Limerick Generating Station, Units 1 and 2 Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353

Subject:

2005 Annual Radiological Environmental Operating Report Lear Sir:

In accordance with the requirements of Section 6.9.17 of Limerick Generating Station (LGS) Unit 1 and Unit 2 Tech. Specs. and Section 6.1 of the LGS Units 1 and 2 Offsite Dose Calculation Manual (ODCM), this letter submits the 2004 Annual Radiological Environmental Operating Report No. 21. This report provides the 2005 results for the Radiological Environmental Monitoring Program (REMP) as called for in the Offsite Dose Calculation Manual.

In assessing the data collected for the REMP, we have concluded that the operation of LGS, Units 1 and 2 had no adverse impact on the environment. No plant-produced fission or activation products, with the exception of Cs-137, were found in any pathway modeled by the REMP. Cesium-1 37 levels detected in sediment were elevated from those found in previous years and were the result of LGS liquid releases.

If you have any questions, please do not hesitate to contact us.

%sincerely, orf DeGre orio Vice resi ent -LGS E~xelon Generation Company, LLC Attachments: 2004 Annual Radiological Environmental Operating Report No. 21 cc: S. Collins, Administrator, Region I, USNRC S. Hansell, USNRC Senior Resident Inspector, LGS T. Valentine, Senior Project Manager-NRR, USNRC T. Moslak, Inspector, Region I, USNRC

LIMERICK GENERATING STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT DISTRIBUTION LIST R. DeGregorio - GML 5-1 (w/o Attachment)

C. Mudrick -GIMVL 5-1 (w/o Attachment)

W. Harris - SSB 2-3 (w/o Attachment)

R. Kreider - SSB 2-4 (with Attachment)

R. Newmaster - SSB 2-2(with Attachment)

M. Audette-SSB 2-2 (with Attachment)

(,. Smith - SSI 2-2 (with Attachment)

S,. Gamble - SSB 2-4 (w/o Attachment)

J. Toro- SMB 1-2 (with Attachment)

F.O'Neill - Cantara (w/o Attachment)

R. Lopriore - KSA 3N (w/o Attachment)

(,. Lewis - KSA 3N (w/o Attachment)

R. A. Kankus - KSA 3G (w/o Attachment)

I). Helker - KSA 3E (w/o Attachment)

R. Janati-Commonwealth of PA (with Attachment)

D). Ney - PA DEP BRP Inspector - SSB 2-4 (with Attachment)

'. Focht - ANI (with Attachment)

D). Katz - City of Phila. Water Dept (w/Attachment)

Aqua America (w/Attachment)

A. Fabian -Phoenixville Water Works (w/Attachment)

American Water Works. (w/Attachment)

'. Winter - Pottstown Water Authority (w/Attachment)

Table Of Contents

1. Summary and Conclusions .................................................. 1I

11. Introduction ....................................................... 3 A. Objectives of the REMP .......... 3................

B. Implementation of the Objectives................................................... 3 III. Program Description ................................................... 4 A. Sample Collection ................................................... 4 B. Sample Analysis ................................................... 6 C. Data Interpretation ................................................... 6 D. Program Exceptions ................................................... 8 E. Program Changes ................................................... 9 IV. Results and Discussion ........ .. 9 A. Aquatic Environment ................................................... .9

1. Surface Water ................................................... . 9

2. Drinking Water .................................................. . . 10

3. Fish ................................................... 10

4. Sediment .................................................. 11 B. Atmospheric Environment ................................................... . 12

1. Airbome .................................................. 12

a. Air Particulates .................................................. 12

b. Airborne Iodine.............................................................................. 13

2. Terrestrial.................................................................................................. 13

a. Milk ................................................... 13 C. Ambient Gamma Radiation ................................................... 13 D. 10 CFR 20.2002 Permit Storage Area . . ................................................ 14 E. Land Use Survey .................................................. 14 F. Summary of Results - Inter-Laboratory Comparison Program ........................... 15 1/. References .................................................. 17 i

Appendices Appendix A Radiological Environmental Monitoring Report Summary Iabl Table A-1 Radiological Environmental Monitoring Program Annual Summary for the Limerick Generating Station, 2005.

Appendix B Location Designation, Distance & Direction, and Sample Collection &

Analytical Methods TIahbI Table B-1: Location Designation and Identification System for the Limerick Generating Station.

Table B-2: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Limerick Generating Station, 2005.

Table B-3: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Limerick Generating Station, 2005.

Eurms Figure B-1: Environmental Sampling Locations Within One Mile of the Limerick Generating Station, 2005.

Figure B-2: Environmental Sampling Locations Between One and Five Miles from the Limerick Generating Station, 2005.

Figure B-3: Environmental Sampling Locations Greater Than Five Miles from the Limerick Generating Station, 2005.

Appendix C Data Tables and Figures - Primary Laboratory Tables Table C-1.1 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table C-1.2 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table C-11.1 Concentrations of Total Gross Beta in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 2005.

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Table C-11.2 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table C-11.3 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Tabla C-1l1.1 Concentrations of Gamma Emitters in Predator and Bottom Feeder (Fish) Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table C-IV.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table C-V.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table C-V.2 Monthly and Yearly Mean Values of Gross Beta Concentrations (E-3 pCi/cu meter) in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Tabl C-V.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table C-VI.1 Concentrationssof 1-131 in Air Iodine Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table C-VII.1 Concentrations of 1-131 in Milk Samples Collected in the Vicinity of Limerick Generating Station,'2005.

Table C-VII.2 Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table C-VIIi.1 Quarterly TLD Results for Limerick Generating Station, 2005.

Table C-VIII.2 Mean Quarterly TLD Results for the Site Boundary, Middle and Control Locations for Limerick Generating Station, 2005.

Table C-VIII.3 Summary of the Ambient Dosimetry Program for Limerick Generating Station, 2005.. -

Table C-IX.1 Summary of Collection Dates for Samples Collected in the Vicinity of Limerick Generating Station, 2005.

igures, Figure C-I Mean Monthly Total Gross Beta Concentrations in Drinking Water Samples Collected in the Vicinity of LGS, 1982 - 2005.

Figure C-2 Mean Annual Cs-1 37 Concentrations in Fish Samples Collected in the Vicinity of LGS, 1982 - 2005.

Figure C-3 Concentrations of Cs-137 in Sediment Samples Collected in the Vicinity of LGS, 1982 - 2005.

Figure C-4 Mean Monthly Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of LGS, 1982 - 2005.

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Figure C-5 Mean Weekly Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of LGS, 2005.

Figure C-6 Mean Quarterly Ambient Gamma Radiation Levels (TLD) in the Vicinity of LGS, 1985 - 2005.

Appendix D Data Tables and Figures - QC Laboratory Tables Table D-1.1 Concentrations of Insoluble Gross Beta in Drinking Water Samples Collected in the Vicinity Of Limerick Generating Station, 2005.

Table D-1.2 Concentrations of Soluble Gross Beta in Drinking Water Samples Collected in the Vicinity Of Limerick Generating Station, 2005.

Table D-1.3 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table D-11.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table D-11.2 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table D-111.1 Concentrations of 1-131 by Chemical Separation and Gamma Emitters in Milk Samples Collected in the Vicinity of Limerick Generating Station, 2005.

Table D-IV.1 Summary of Collection Dates for Samples Collected in the Vicinity of Limerick Generating Station, 2005.

igureas Figure D-1 Comparison of Monthly Total Gross Beta Concentrations in Drinking Water Samples Split Between ENV and TBE, 2005.

Figure D-2 Comparison of Weekly Gross Beta Concentrations in Air Particulate Samples Collected from LGS Collocated Locations 1 S1 and 11S2, 2005.

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Appendix E Inter-Laboratory Comparison Program labism Table E-1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2005.

Table E-2 ERA Envkonmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2005.

Table E-3 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering, 2005.

Table E4 ERA Statistical Summary Proficiency Testing Program Environmental, Inc., 2005.

Table E-5 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Environmental, Inc., 2005.

v

I. Summary and Conclusions This report on the Radiological Environmental Monitoring Program conducted for the Limerick Generating Station (LGS) by Exelon covers the period 1 January 2005 through 31 December 2005. During that time period, 1,100 analyses were performed on 890 samples. In assessing all the data gathered for this report and comparing these results with preoperational data, it was concluded that the operation of LGS had no adverse radiological impact on the environment.

Surface and drinking water samples were analyzed for concentrations of tritium and gamma emitting nuclides. Drinking water samples were also analyzed for concentrations of gross beta. No fission or activation products were detected.

Gross beta activities detected were consistent with those detected in previous years. No tritium activity was detected.

Fish (predator and bottom feeder) and sediment samples were analyzed for concentrations of gamma emitting nuclides. Iodine-131 was detected in both predator and bottom feeder fish during the Spring season collection. The 1-131 activity was attributable to medical discharges to the River from a sewage treatment plant located below the Limerick discharge. Cesium-137 was detected in one bottom feeder sample. The calculated dose to an adult consuming fish with this concentration of 1-131 and Cs-137 was 1.51 mrem.

Sediment samples collected below the discharge had elevated Cesium-1 37 concentrations that were the result of LGS discharges. lodine-131 was found in the upstream control location and was due to medical releases from upstream waste water treatment plants. No other Plant produced fission or activation products were found in sediment. The calculated dose to a teenagers skin and whole body was 2.97E-3 mrem and 2.54E-3 mrem, respectively. These doses represent 0.015% and 0.042%, respectively of the 10 CFR Part 20, Appendix I dose limits.

Air particulate samples were analyzed for concentrations of gross beta and gamma emitting nuclides. Cosmogenic Be-7 was detected at levels consistent with those detected in previous years. No fission or activation products were detected.

High sensitivity 1-131 analyses were performed on weekly air samples. All results were less than the minimum detectable concentration.

Cow milk samples were analyzed for concentrations of 1-131 and gamma emitting nuclides. All 1-131 results were below the minimum detectable concentration. Concentrations of naturally occurring K-40 were consistent with those detected in previous years. No fission or activation products were found.

Environmental gamma radiation measurements were performed quarterly using thermoluminescent dosimeters. Levels detected were consistent with those observed in previous years.

I

Review of the gamma spectroscopy results from the surface water sampler (24S1) located at the Limerick's intake and downstream of the 10CFR20.2002 permitted storage area indicated no offsite radionuclide transport was evident.

. I 2

II. Introduction The Limerick Generating Station (LGS), consisting of two 3458 MWt boiling water reactors owned and operated by Exelon Corporation, is located adjacent to the Schuylkill River in Montgomery County, Pennsylvania. Unit No. I went critical on 22 December 1984. Unit No. 2 went critical on 11 August 1989. The site is located in Piedmont countryside, transversed by numerous valleys containing small tributaries that feed into the Schuylkill River. On the eastern river bank elevation rises from approximately 110 to 300 feet mean sea level (MSL). On the western river bank elevation rises to approximately 50 feet MSL to the western site boundary.

A Radiological Environmental Monitoring Program (REMP) for LGS was initiated in 1971. Review of the 1971 through 1977 REMP data resulted in the modification of the program to comply with changes in the Environmental Repolt Operating License Stage (EROL) and the Branch Technical Position Paper (Rev.

1, 1979). The preoperational period for most media covers the periods 1 January 1982 through 21 December 1984 and was summarized in a separate report.

This report covers those analyses performed by Teledyne Brown Engineering (TBE), Global Dosimetry, and Environmental Inc. (Midwest Labs) on samples collected during the period 1 January 2005 through 31 December 2005.

On 6 July 1996 a I OCFR20.2002 permit was issued to Limerick for storage of slightly contaminated soils, sediments and sludges obtained from the holding pond, cooling tower and spray pond systems. These materials will decay to background while in storage. Final disposition will be determined at Station decommissioning.

A. Objective of the REMP The objectives of the REMP are to:

1. Provide data on measurable levels of radiation and radioactive materials in the site environs.

2. Evaluate the relationship between quantities of radioactive material released from the plant and resultant radiation doses to individuals from principal pathways of exposure.

B. Implementation of the Objectives The implementation of the objectives is accomplished by:

1. Identifying significant exposure pathways.

2. Establishing baseline radiological data of media within those pathways.

3. Continuously monitoring those media before and during Station operation to assess Station radiological effects (if any) on man and the environment.

Ill. Program Description A. Sample Collection Samples for the LGS REMP were collected for Exelon Nuclear by Normandeau Associates, RMC Environmental Services Division (RMIC).

This section describes the general collection methods used by RMC to obtain environmental samples for the LGS REMP in 2005. Sample locations and descriptions can be found in Tables B-1 and B-2, and Figures B-1 through B-3, Appendix B. The collection procedures used by RMC are listed in Table B-3.

Aquatic Enmimnnmentd The aquatic environment was evaluated by performing radiological analyses on samples of surface water, drinking water, fish, and sediment.

Two gallon water samples were collected monthly from continuous samplers located at two surface water locations (13B1 and 24S1) and four drinking water locations (15F4, 15F7, 16C2, and 28F3). One additional surface water location (10F2) was not sampled during 2005. Control locations were 10F2, 24S1, and 28F3. All samples were collected in new unused plastic bottles, which were rinsed at least twice with source water prior to collection. Fish samples comprising the flesh of two groups, catfish/bullhead (bottom feeder) and sunfish (predator), were collected semiannually at two locations, 16C5 and 29C1 (control). Sediment samples composed of recently deposited substrate were collected at three locations semiannually, 16B2, 16C4 and 33A2 (control).

Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of air particulate, airborne iodine, and milk. Airborne iodine and particulate samples were collected and analyzed weekly at five locations (10S3, 11S1, 13C1, 14S1, and 22G1). The control location was 22G1. Airborne iodine and particulate samples were obtained at each location, using a vacuum pump with charcoal and glass fiber filters attached. The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The filters were replaced weekly and sent to the laboratory for analysis.

Milk samples were collected biweekly at five locations (10F4, 18E1, 119B1, 23F1, and 25C1)'from April through November, and monthly from December through March. Two additional locations (25E1 and 36E1) were sampled quarterly. Locations 36E1 and 23F1 were controls. All samples were collected in new unused two gallon plastic bottles from the bulk tank at each location, preserved with sodium bisulfite, and shipped promptly to the laboratory.

Ambient Gamma Radiation Direct radiation measurements were made using Panasonic 814 calcium sulfate (CaSO4) thermoluminescent dosimeters (TLD). The TLD locations were placed on and around the LGS site as follows:

A site-bundaryLdng consisting of 16 locations (36S2, 3S1, 5S1, 7S1, 10S3, 11S1, 13S2, 14S1, 18S2, 21S2, 23S2, 25S2, 26S3, 29S1, 31S1 and 34S2) near and within the site perimeter representing fence post doses (i.e., at locations where the doses will be potentially greater than maximum annual off-site doses) from LGS release.

An intermediate distance ring consisting of 16 locations (36D1, 2E1, 4E1, 7E1, 10EI,' 1OF3,-13E1 ,'.16F1 , 19D1 .20F1, 24D1,-25D1, 28D2, 29E1, 31 D2, and 34E1) extending to approximately 5 miles from the site designied to'measure possible exposures to close-in population.

The balance of eight locations (5H1, 6C1, 9C1, 13C1, 15D1, 17B1, 20D1I and 31D1) representing control and special interests areas such as population centers, schools, etc.

The specific TLD locations were determined by the following criteria:

1. The presence of relatively dense population;

2. Site meteorological data taking into account distance and elevation for each of the sixteen-22 1/2 degree sectors around the site, where estimated annual dose from LGS, if any, would be most significant;

3. On hills free from local obstructions and within sight of the vents (where practical);

4. And near the closest dwelling to the vents in the prevailing downwind direction.

Two TLDs - each comprised of three CaSO4 thermoluminescent phosphors enclosed in plastic - were placed at each location in a PVC conduit located approximately three feet above ground level. The TLDs were exchanged quarterly and sent to Global for analysis.

I OCFR20 2002 Permit StorageArea

1. The results of the surface water sampling program were used to determine if radioactive nuclide transport from the storage area into the Schuylkill River had occurred.

B. Sample Analysis This section describes the general analytical methodologies used by TBE and Midwest Labs to analyze the environmental samples for radioactivity for the LGS REMP in 2005. The analytical procedures used by the laboratories are listed in Table B-3.

In order to achieve the stated objectives, the current program includes the following analyses:

1. Concentrations of beta emitters in drinking water, and air particulates.

2. Concentrations of gamma emitters in surface and drinking water, air particulates, milk, fish, and sediment.

3. Concentrations of tritium in surface and drinking water.

4. Concentrations of 1-131 in air and milk.

5. Ambient gamma radiation levels at various site environs.

C. Data Interpretation The radiological and direct radiation data collected prior to LGS becoming operational was used as a baseline with which these operational data were compared. For the purpose of this report, LGS was considered operational at initial criticality. In addition, data were compared to previous years' operational data for consistency and trending. Several factors were important in the interpretation of the data:

1. Lower Limit of Detection sndl Minimum Detectable Concentration The lower limit of detection (LLD) was 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 was intended as a before the fact estimate of a system (including instrumentation, procedure and sample type) and not as an after the fact criteria for the presence of activity. All analyses were designed to achieve the required LGS detection limits for environmental sample analysis.

The minimum detectable concentration (MDC) was defined as above with the exception that the measurement is an after the fad.

estimate of the presence of activity.

2. Net Activity Calculation and Reporting of Results Net activity for a sample was calculated by subtracting background activity from the sample activity. Since the REMP measures extremely small changes in radioactivity in the environment, background variations may result in sample activity being lower than the background activity affecting a negative number. An MDC was reported in all cases where positive activity was not-detected.

If no positive activity was detected, then gamma spectroscopy results for each type of sample were grouped as follows:

For surface and drinking water twelve nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Zr-95, Nb-95,1-131, Cs-134, Cs-137, Ba-140, and La-140 were reported.

For fish nine nuclides, K-40, Mn-54, Co-58, Fe-59, Co-60, Zn-65, 1-131, Cs-134, and Cs-137 were reported.

For sediment seven nuclides, Be-7, K-40, Mn-54, Co-58, Co-60, Cs-1 34, and Cs-1 37 were reported.

For air particulate six nuclides, Be-7, Mn-54, Co-58, Co-60, Cs-134, and Cs-137 were reported.

For milk five nuclides, K-40, Cs-1 34, Cs-1 37, Ba-140, and La-1 40 were reported.

Means and standard deviations of the results were calculated. The standard deviations represent the variability of measured results for different samples rather than single analysis uncertainty.

D. Program Exceptions For 2005 the LGS REMP had a sample recovery rate in excess of 99%.

Exceptions are listed below:

1. Drinking Water composite sampler at location 16C2 was out of service from 217/2005 to 4/4/2005 due to frozen pump and cracked pipe, weekly grab samples were taken.

2. Drinking Water composite sampler at location 15F4 was out of service on 11/14/2005 due to equipment malfunction. A partial grab sample was taken.

3. Drinking Water composite sampler at location 15F7 was out of service on 3/7/2005 due to equipment malfunction. A partial grab sample was taken.

4. Surface Water composite sampler at location 10F2 was out of service for the entire 2005, because no water was drawn from the Delaware River for cooling of the station.

5. Surface Water composite sampler at location 13B1 was out of service during the following periods:

1/3/2005 - due to equipment malfunction. A weekly grab sample was taken.

1/24/2005 - 1/31/2005 - due to freezing conditions. Weekly grab samples taken.

3/14/2005 - due to electrical malfunction. A partial grab sample was taken.

4/4/2005 - 4/18/2005 - Low sample volume due to changes in river level. A partial grab sample was taken.

10/17/2005 - Equipment malfunction, weekly grab sample taken

6. Surface Water composite sampler at location 24S1 was out of service during the following periods:

1/24/2005 - 1/31/2005 - River frozen, A weekly grab sample was taken.

8/8/2005 - 10/17/2005 - Equipment malfunction. Weekly grab samples were taken.

7. Air particulate and air iodine samples were not available at location 13C1 from week 38 and week 39, due to electrical problems:

Each program exception was reviewed to understand the causes of the program exception. Sampling and maintenance errors were reviewed with the personnel involved to prevent recurrence. Occasional equipment breakdowns and power outages were unavoidable.

The overall sample recovery rate indicates that the appropriate procedures and equipment are in place to assure reliable program implementation.

E. Program Changes Milk station 25E1 was added to the quarterly sampling on 01/11/05.

Milk station 25CI was added to the QC Laboratory Program beginning with the second quarter 2005.

Drinking water analysis of soluble and insoluble fractions of gross beta was discontinued beginning January 2005 and replaced by total gross beta. The drinking water data for the soluble and insoluble fractions was.

combined to create the total gross beta graph in Appendix C, Figure C-1.

The previous data included summation of the less than values.

IV. Results and Discussion A. Aquatic Environment

1. Surface Water Samples were taken from a continuous sampler at two locations (133B1 and 24S1) on a monthly schedule. Of these locations only 13B1 located downstream, could be affected by Limerick's effluent releases. The following analyses were performed.

Tritium Monthly samples from all locations were composited quarterly and analyzed for tritium activity (Table C-1.1, Appendix C). No tritium activity was detected. The highest MDC calculated was <200 pCi/I.

Gamma SptW Samples from all locations were analyzed for gamma emitting nuclides (Table C-1.2, Appendix C). All nuclides were less than the MDC.

2. Drinking Water Monthly samples were collected from continuous water samplers at four locations (15F4, 15F7, 16C2, and 28F3). Three locations (15F4, 15F7, and 16C2) could be affected by Limerick's effluent releases. The following analyses were performed:

Grmss Raeta Samples from all locations were analyzed for concentrations of total gross beta (Tables C-11.1, Appendix C). The values ranged from

<1.9 to 6.8 pCi/I. Concentrations detected were consistent with those detected in previous years (Figure C-1, Appendix C).

Tritium Monthly samples from all locations were composited quarterly and analyzed for tritium activity (Table C-11.2, Appendix C). No tritium activity was detected. The highest MDC calculated was <200 pCi/l.

Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides (Table C-11.3, Appendix C). All nuclides were less than the MDC.

3. Fish Fish samples comprised of catfish/bullhead (bottom feeder) and sunfish (predator) were collected at two locations (16C5 and 29C1) in the spring and fall season. Location 16C5 could be affected by Limerick's effluent releases. The following analysis was performed:

Gamma Spertrometry The edible portion of fish samples from both locations was analyzed for gamma emitting nuclides (Table C-111.1, Appendix C).

Naturally occurring K-40 was found at all stations and ranged from 2,600 to 4,820 pCi/kg wet and was consistent with levels detected in previous years. Iodine 131 was found in both predator and bottom feeder fish at the location 16C5 during the Spring season collection and was most likely the result of medical waste discharges from the'sewage treatment plant located below the LG S discharge. The values ranged from 22.0 to 36.3 pCi/kg wet. In addition Cs-137 was detected in one sample at a concentration of 15 pCi/kg wet. No other gamma emitting nuclides were found. The dose to an adult consuming fish with this activity was conservatively calculated at .1.51 mrem. Historical levels of Cs-1 37 are shown in Figure C-2, Appendix C.

4. Sediment Aquatic sediment samples were collected at three locations (16B2, 16C4 and 33A2) semiannually. Of these locations two 16B2 and 16C4 located downstream, could be affected by Limerick's effluent releases:. The following analysis was performed:

Gamma Spectrometry Sediment samples from all three locations were analyzed for gamma emitting nuclides (Table C-IV.1, Appendix C). Nuclides detected were naturally occurring Be-7, K-40 and the fission products'l-131 and Cs-137..' f Beryllium-7 was found in one sample at location 16C4 at a concentration of 912 pCi/kg dry. Potassium-40 was found at all stations and ranged from 11,300 to 16,000 pCi/kg dry. The fission product Cs-137 was found at location 16C4 and ranged from 921 to 1130 pCi/kg dry. The elevated Cs-137 activity was due to LGS radioactive effluent releases (Figure C-3, Appendix C). The River flows during the Spring and Summer were extremely low. The dose to a teenager's skin and whole body was conservatively calculated at 2.97E-3 mrem and 2.54E-3 mrem, respectively.

These doses represent 0.015% and 0.042%, respectively of the Appendix I to 10 CFR Part 50 dose limits. Iodine-131 was found at the control location 33A2 at 150 pCi/kg dry and was the result of medical applications. The calculated dose to a teenager's skin and whole body was conservatively calculated at 2.73E-4 mrem and 2.25E-4 mrem, respectively.

-1 1 -

B. Atmospheric Environment Airborne

a. Air Particulates Continuous air particulate samples were collected from five locations on a weekly basis. The five locations were separated into three groups: Group I represents locations within the LGS site boundary (10S3, 11S1, and 14S1),

Group II represents the location at an intermediate distance from the LGS site (13C1), and Group IlIl represents the control location at a remote distance from LGS (22G1). The following analyses were performed:

Grs=BBsa Weekly samples were analyzed for concentrations of beta emitters (Table C-V.1 and C-V.2, Appendix C).

Detectable gross beta activity was observed at all locations.

Comparison 6f results among the three groups aid in determining the effects, if any, resulting from the operation of LGS. The results from the On-Site locations (Group I) ranged from <7 to 32 E-3 pCi/M3 with a mean of 16 E-3 pCi/M 3. The results from the Intermediate Distance location (Group II) ranged from <7 to 30 E-3 pCi/m3 with a mean of 15 E-3 pCi/m . The results from the Distant locations (Group l1l) ranged from 6 to 33 E-3 pCi/M 3 with a mean of 16 E-3 pCi/M3 . Comparison of the 2005 air particulate data with previous years data indicate no effects from the operation of LGS (Figure C-4, Appendix C). In addition a comparison of the weekly mean values for 2005 indicate no notable differences among the three groups (Figure C-5, Appendix C).

GammaS rjmetry Weekly samples were composited quarterly and analyzed for gamma emitting nuclides (Table C-V.3, Appendix C).

Naturally occurring Be-7 due to cosmic ray activity was detected in all samples. These values ranged from 40 to 75 E-3 pCi/m3 . All other nuclides were less than the MDC.

b. Airborne Iodine Continuous air samples were collected from five locations (10S3, 1 SI, 14S1, 13C1, and 22G1) and analyzed weekly for 1-131 (Table C-VIA, Appendix C). All results were less than the MDC.

2. Terrestrial

a. Milk Samples were collected from five locations (10F4, 1BE1, 19B1, 23F1, and 25C1) biweekly April through November and monthly December through March. Samples from two additional locations (36E1 and 25E1) were taken quarterly.

The following analyses were performed:

Milk samples from all locations were analyzed for concentrations of 1-131 (Table C-VII.1, Appendix C). All results were less than the MDC.

- (Garmm Spedtrometry Each milk sample was analyzed for concentrations of gamma emitting nuclides (Table C-VI1.2, Appendix C).

Naturally occurring K-40 activity was found in all samples and ranged from 1,110 to 1,510 pCi/I. All other nuclides were less than the MDC.

C. Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing Panasonic 814 (CaSO4) thermoluminescent dosimeters. Forty TLD locations were established around the site.. Results of TLD measurements are listed in Tables C-VIII.1 to C-VIII.3, Appendix C.

Most TLD measurements were below 10 mR/standard month, with a range of 5.3 to 12.4 mR/standard month. A comparison of the Site Boundary and Intermediate Distance data to the Control Location data, indicate that the ambient gamma radiation levels from the Control Location SH1 were consistently higher. The historical ambient gamma radiation data from Location 5H1 were plotted along with similar data from the Site, Intermediate Distance and Outer Ring Locations (Figure C-6, Appendix C). Location 5H1 has a historical high bias, but tracked with the data from all three groups. This bias is most likely due to radon emanating from the ground.

D. 10 CFR 20.2002 Permit Storage Area The results of the surface water aquatic monitoring program from Location 24S1 were used to determine if radioactivity from the permit storage area had made it to the Schuylkill River. The data obtained from the gamma analysis program did not detect any migration of radioactivity from the permit storage area.

E. Land Use Survey A Land Use Survey conducted in August 2005 around Limerick Generating Station (LGS) was performed by Normandeau Associates, RMC Environmental Services Division for Exelon Nuclear to comply with Bases 3.3.2 of the Limerick's Offsite Dose Calculation Manual. The purpose of the survey was to document the nearest resident, milk producing animal and garden of greater than 500 ft2 in each of the sixteen 22 1/2 degree sectors around the site. Four new gardens are included in the 2005 survey. The gardens are located in sectors SSW, SE, WSW and WNW. The distance and direction of all locations from the LGS reactor buildings were positioned using Global Positioning System (GPS) technology. There were no changes required to the LGS REMP, as a result of this survey. The results of this survey are summarized below.

Distance in Miles from the LGS Reactor Buildings Sector Residence Garden Milk Farm Miles Miles Miles 1N 0.6 1.8 4.7 2 NNE 0.5 0.5 -

3 NE 0.7 1.6 4 ENI 0.6 0.7 5E 0.5 . 0.7 6 ESEE 0.7 1.1 7 SE 1.0 2.8 8 SSE 1.0 1.1 9S 0.8 1.2 4.2 10 SS%V 1.0 1.0 2.0 11 SW 0.6 0.6 12 WS'W 0.7 2.3 2.7 13W 0.7 0.8 2.8 14 WN'W 0.7 0.8 -

15 NW 0.7 1.6 16 NN%V 1.0 1.6 F. Summary of Results - Irnter-laboratory Comparison Program The primary and secondary laboratories analyzed Performance Evaluation (PE) samples oflair'padrticulate, air iodine, milk, soil, vegetation and water matrices for 19 analytes. The PE-samples, supplied by Analytics Inc.,

Environmental Resource'Associates (ERA) and DOE's MAPEP, were evaluated against the following pre-set acceptance criteria:

1. Analytics Evaluation Criteria Analytics' evaluation report provides a ratio of TBE's result and Analytics' known value. Since flag values are not assigned by Analytics, TBE-ES evaluates the reported ratios based on internal QC requirements, which are based on the DOE MAPEP criteria.

2. ERA Evaluation Criteria ERA's evaluation report provides an acceptance range for control and warning limits with associated flag values. ERA's acceptance limits are established per the USEPA, NELAC, state specific PT program requirements or ERA's SOP for the Generation of Performance Acceptance Limits, as applicable. The acceptance limits are either determined by a regression equation specific to each analyte or a fixed percentage limit promulgated under the appropriate regulatory document.

3. DOE Evaluation Criteria MAPEP's evaluation report provides an acceptance range with associated flag values.

The MAPEP defines three levels of performance: Acceptable (flag =

"A"), Acceptable with Warning (flag = "W"), and Not Acceptable (flag = "N"). Performance is considered acceptable when a mean result for the specified analyte is +/- 20% of the reference value.

Performance is acceptable with warning when a mean result falls in the range from +/-20% to +/-30% of the reference value (i.e., 20% <

bias < 30%). If the bias is greater than 30%, the results are deemed not acceptable.

For,the primary laboratory, 18 out of 19 analytes met the specified acceptance criteria. One sample did not meet the specified acceptance criteria for the following reason:

I1. Teledyne Brown Engineering's Analytics' September 2005 air particulate Fe-59 ratio of 1.35 exceeded the upper control limit of 1.30 due to a new technician not counting the air particulate in a petri dish.

For the secondary laboratory, 19 out of 23 analytes met the specified acceptance criteria. Four samples did not meet the specified acceptance criteria for the following reasons:

1. Environmental Inc.'s ERA's November 2005 water Gross Alpha result of 41.1 pCi/L exceeded the upper control limit of 33.4 pCi/L.

This was due to using an Am-241 efficiency instead of a Th-232 efficiency when counting the sample. Using the correct efficiency gave a result of 27.0 pCi/L.

2. Environmental Inc.'s ERA's November 2005 water Ra-228 result of 5.5 pCi/L exceeded he upper control limit of 5.0 pCi/L due to presence of radium daughters. Delay in counting 100 minutes gave a result of 4.01 pci/L.

3. Environmental Inc.'s MAPEP's January 2005 air particulate Sr-90 result of 2.2 exceeded the upper control limit of 1.76 Bq/kg.

Reanalysis result was 1.56 Bq/kg.

4. Environmental Inc.'s MAPEP's July 2005 soil Am-241 result of 48.4 exceeded the lower control limit of 56.77 Bq/kg due to incorrect sample weight being used in the calculation. When recalculated with the correct sample weight, the result was 97.0 Bq/kg.

The Inter-Laboratory Comparison Program provides evidence of 'in control" counting systems and methods, and that the laboratories are producing accurate and reliable data.

V. References

1. Environmental Report Operating'License Stage, Limerick Generating Station, Units 1 and 2, Volumes 1-5 Philadelphia Electric Company.

2. Branch Technical Position Paper, Regulatory Guide 4.8, Revision 1, November 1979. . 7

3. Pre-operational Radiological Environmental Monitoring Program Report, Limerick Generating Station Units I and 2, 1 January 1982 through 21 December 1984, Teledyne Isotopes and Radiation Management Corporation.

I . .o yL Intentionally Left Blank

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2005 Name ne F riIity. IjM1rv iic .'N1FRATING WTATTN nfCIC.T NlIMRv.R ac IA9Blast Location or Facility: MONTGOMERY COUNTY, PA REPORTING PERIOD: 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER H-3 8 2000 176 177 177 24SI CONTROL (PCI/LITER) (0/4) (0/4) (0/8) LIMERICK INTAKE

(<159/<196) (<158/<200) (<158/<200) 0.20 MILES SW GAMMA 24 MN-54 15 5 4 5 13BI INDICATOR 0 (0/12) (0/12) (0/24) VINCENT DAM

(<2/<9) (<3/<7) (<2/<9) 1.75 MILES SE CO-58 15 5 4 5 13BI INDICATOR 0 (0/12) (0/12) (0/24) VINCENT DAM

(<31<7) (<31<6) (<3/<7) 1.75 MILES SE FE-59 30 10 9 10 13BI INDICATOR 0 (0/12) (0/12) (0/24) VINCENT DAM

(<5/<19) (<4/<16) (<5/<19) 1.75 MILES SE CO-60 15 6 5 6 13BI INDICATOR 0 (0/12) (0/12) (0/24) VINCENT DAM (a/<210) (<31<9) (<21<10) 1.75 MILES SE ZN-65 30 10 10 10 13BI INDICATOR 0 ton VINCENT DAM (0/12) (0/12)

(<61<16) (<7/<14) (<6/<16) 1.75 MILES SE NB-95 15 5 4 5 13BI INDICATOR 0 (0/12) (0/12) (0/24) VINCENT DAM

(<3/<8) (<3/<6) (<31<8) 1.75 MILES SE 30 8 8 8 13BI INDICATOR 0 ZR-95 (0/12) (0/12) (0/24) VINCENT DAM

(<5/<12) (<5/<13) (<5/<12) 1.75 MILES SE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2005 Name of Facility: LIMERICK GENERATING STATION DOCKET NUMBER: 50-352 & 50-353 Location of Facility: MONTGOMERY COUNTY, PA REPORTING PERIOD: 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS 1-131 15 5 4 5 13BI INDICATOR 0 (0/12) (0/12) (0/12) VINCENT DAM

(<3/<8) (<31<6) (<3/<8) 1.75 MILES SE OF SITE CS-134 15 5 4 13BI INDICATOR 0 (0/12) (0/12) (0/24), VINCENT DAM

(<3/<8) (<31<6) (<3/<8) 1.75 MILES SE CS-137 18 5 13BI INDICATOR 0 (0/12) (0/12) (0/24) VINCENT DAM

(<3/<8) (<3/<8) (<3/<8) 1.75 MILES SE BA-140 60 23 21 23 13BI INDICATOR (0/12) (0/12) (0/24) VINCENT DAM

(<11/<37) (<131<35) (<11/<37) 1.75 MILES SE LA-140 15 7 7 7 13BI INDICATOR 0 (0112) (0/12) (0/24) VINCENT DAM

(<2/<13) (<41<12) (<2/<13) 1.75 MILES SE DRINKING WATER GR-B 48 4 4.1 4.6 4.6 28F3 CONTROL 0 (PCI/LITER) (32/36) (11/12) (11/12) POTTSTOWN WATER AUTHORITY

(< 1.9/ 6.8) (< 2.3/ 6.5) (< 2.31 6.5) 5.84 MILES WNW 11-3 16 2000 175 175 176 15F7 INDICATOR 0 (0/12) (0/4) (0/8) PHOENIXVILLE WATER WORKS

(<157/<200) (<157,<195) (<1571<200) 6.33 MILES SSE GAMMA 48 MN-54 15 5 5 16C2 INDICATOR 0 (0136) (0/12) (0/24) CITIZENS HOME WATER COMPANY

(<2/<9) (<41<6) (<41<9) 2.66 MILES SSE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-l RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THfE LIMERICK GENERATING STATION, 2005 Novase fif* ^.-'d:y: L.,'I'- CENE- *TINC' STAT1DN U^f~f1 WJTIUV:tU* X enA . i-NM Location of Facility: MONTGOMERY COUNTY, PA REPORTING PERIOD: 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN' MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS CO-58 15 5 5 5 16C2 INDICATOR (0/36) (0/12) (0/24) CITIZENS HOME WATER COMPANY

(<,/<9) ('41'6) (<31<9) 2.66 MILES SSE FE-59 30 10 10 16C2 INDICATOR (0/36) (0/12) (0/24) CITIZENS HOME WATER COMPANY

(<51<18) (<7/<12) (<7/<17) 2.66 MILES SSE CO-60 15 5 5 6 16C2 INDICATOR (0/36) (0/12) (0/24) CITIZENS HOME WATER COMPANY

(<31<9) (<31<7) (<3/<9) 2.66 MILES SSE ZN-65 30 lI 10 I1 15F7 INDICATOR (0/36) (0/12) (0/24) PHOENIXVILLE WATER WORKS

(<41<19) (<7/<12) (<7/<17) 6.33 MILES SSE NB-95 15 5 5 6 16C2 INDICATOR (0/36) (0/12) (0o24) CITIZENS HOME WATER COMPANY

(<31<9) (<41<6) (<41<9) 2.66 MILES SSE ZR-95 30 9 9 9 15F7 INDICATOR (0/36) (0/12) (on04) PHOENIXVILLE WATER WORKS

(<4/<17) (<7/<12) (<5/<12) 6.33 MILES SSE 1-131 15 9 8 9 16C2 INDICATOR (0/36) (0/12) (0/12) CITIZENS HOME WATER COMPANY

(<3/<20) (<5/<15) (<5/<19) 2.66 MILES SSE OF SITE CS-134 15 5 4 5 I SF7 INDICATOR (0/36) (0/12) (0/24) PHOENIXVILLE WATER WORKS

(<2/<9) (<31<6) (<3/<9) 6.33 MILES SSE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAS AND THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-i RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2005 Name of Facility: LIMERICK GENERATING STATION DOCKET NUMBER: 50-352 & 50-353 Location of Facility: MONTGOMERY COUNTY, PA REPORTING PERIOD: 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS CS-137 18 6 S 6 15F7 INDICATOR 0 (0/36) (0/12) (0/24) PHOENIXVILLE WATER WORKS

(<3/<10) (<3/<6) (<4/<8) 6.33 MILES SSE BA-140 60 24 22 25 16C2 INDICATOR 0 (0/36) (0/12) (0/24) CITIZENS HOME WATER COMPANY

(<12/<42) (<9/<33) (<14/<42) 2.66 MILES SSE LA-140 15 8 6 8 16C2 INDICATOR 0 (0/36) (0/12) (0/24) CITIZENS HOME WATER COMPANY

(<21<14) (<21<13) (<51<14) 2.66 MILES SSE BOTTOM FEEDER (FISH) GAMMA 4 (PCI/KG WET) K40 N/A 3050 3900 3900 29CI CONTROL 0 (2/2) (2/2) (4/4) POTTSTOWN VICINITY (3050/3050) (2980/4820) (2980/4820) UPSTREAM OF INTAKE MN-54 130 27 26 27 16C5 INDICATOR 0 (0/2) (0/2) (0/4) VINCENT POOL

(<61<48) (<6<45) (<61<48) DOWNSTREAM OF DISCHARGE CO-58 130 23 28 28 29CI CONTROL 0 (0/2) (0/2) (0/4) POTTSTOWN VICINITY

(<61<41) (<6/<50) (<6/<50) UPSTREAM OF INTAKE FE-59 260 52 72 72 29CI CONTROL 0 (0/2) (0/2) (0/4) POTTSTOWN VICINITY

(<13/<92) (<141<130) (<14/<130) UPSTREAM OF INTAKE CO-60 130 30 29 30 16C5 INDICATOR 0 (0/2) (0/2) (0/4) VINCENT POOL

(<61<54) (<6/<53) (<61<54) DOWNSTREAM OF DISCHARGE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2005 U*IC U-, " U. L.fml..... y:Lt.-tD.sE* T. u....n.....E.. TV'Stf. D: $ 59-35 Location of Facility: MONTGOMERY COUNTY, PA REPORTING PERIOD: 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS ZN-65 260 40 69 69 29CI CONTROL 0 (0/2) (0/2) (0/4) POTTSTOWN VICINITY

(<12J<68) (<14/<124) (<14/<124) UPSTREAM OF INTAKE 1-131 N/A 56 66 66 29CI CONTROL 0 (1/2) (0o2) (0/2) POTTSTOWN VICINITY (361<75) (<141<1 19) (<141<119) UPSTREAM OF INTAKE CS-134 130 21 26 26 29CI CONTROL 0 (012) (012) (0/4) POTTSTOWN VICINITY

(<51<37) (<6/<46) (<61<46) UPSTREAM OF INTAKE CS-137 150 32 31 32 16C5 INDICATOR 0 (1/2) (0/2) (214) VINCENT POOL (15/<49) (<61<56) (15/<49) DOWNSTREAM OF DISCHARGE

v. PREDATOR (FISH) GAMMA 4 (PCI/KG WET) K-40 N/A 3020 3525 3525 29CI CONTROL 0 (2/2) (2/2) (4/4) POTTSTOWN VICINITY (2850/3190) (2600/4450) (2600/4450) UPSTREAM OF INTAKE MN-54 130 19 22 22 29CI CONTROL 0 (0o2) (0/2) (0/4) POTTSTOWN VICINITY

(<4<33) (<51<39) (<51<39) UPSTREAM OF INTAKE CO-58 130 13 24 24 29CI CONTROL 0 (0/2) (0/2) (0/4) POTTSTOWN VICINITY

(<4/<21) (<5/<4) (<5/<44) UPSTREAM OF INTAKE F7-.5Q 260 35 47 47 29CI CONTROL 0 (0/2) (0/2) (0/4) POTTSTOWN VICINITY

(<101<61I) (<10<R3) (<10/<83) UPSTREAM OF INTAKE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2005 Name of Facility: LIMERICK GENERATING STATION DOCKET NUMBER: 50-352 & 50-353 Location of Facility: MONTGOMERY COUNTY, PA REPORTING PERIOD: 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION t# NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS CO-60 130 24 24 24 29CI CONTROL 0 (0o2) (0/2) (0/4) POTTSTOWN VICINITY

(<41<43) (<51<44) (<51<44) UPSTREAM OF INTAKE ZN-65 260 37 41 41 29CI CONTROL 0 (0/2) (0/2) (0/4) POTTSTOWN VICINITY

(<9/<65) (<10/<72) (<10/<72) UPSTREAM OF INTAKE 1-131 NIA 36 40 40 29CI CONTROL 0 (1/2) (0/2) (0/2) POTTSTOWN VICINITY (221<49) (<111<69) (<1 1/<69) UPSTREAM OF INTAKE CS-134 130 16 26 26 29CI CONTROL 0 (0/2) (0o2) (0/4) POTTSTOWN VICINITY

(<41<27) (<5/<47) (<51<47) UPSTREAM OF INTAKE 0!h CS-137 150 18 25 25 29CI CONTROL 0 (0/2) (0/2) (0/4) POTTSTOWN VICINITY

(<5/<31) (<51<46) (<5/<46) UPSTREAM OF INTAKE SEDIMENT GAMMA 6 (PCI/KG DRY) BE-7 N/A *466 426 634 16C4 INDICATOR 0 (1/4) (0/2) (2/4) VINCENT DAM

(<266/912) (<359/<493) (<356/912) 2.18 MILES SSE K-40 N/A 13775 12950 16250 16C4 INDICATOR 0 (4/4) (2/2) (4/4) VINCENT DAM (11300/16500) (12500/13400) (16000/16500) 2.18 MILES SSE MN-54 N/A 51 50 60 16C4 INDICATOR 0 (0/4) (0o2) (0/4) VINCENT DAM

(<33/<79) (<43/<57) (<41/<79) 2.18 MILES SSE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2005 Nm^tF- Vet d. L PMlRCK NER ATIN. STATION DOCKET NUMBER: 50-352 & 50-353 Location or Facility: MONTGOMERY COUNTY, PA REPORTING PERIOD: 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATH WAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS CO-58 N/A 43 47 50 16C4 INDICATOR 0 (0/4) (0/2) (0/4) VINCENT DAM

(<311<61) (<42/<53) (<38/<61) 2.18 MILES SSE CO-60 N/A 55 52 67 16C4 INDICATOR 0 (0/4) (0/2) (0/4) VINCENT DAM

(<31/<94) (<421<63) (<391<94) 2.18 MILES SSE 1-131 N/A 67 102 102 33A2 CONTROL 0 (0/4) (1/2) (1/2) UPSTREAM OF INTAKE

(<491<97) (<73/132) (<73/132) 0.84 MILES NNW OF SITE CS-134 150 56 60 67 16C4 INDICATOR 0 (014) (0/2) (0/4) VINCENT DAM

(<401<68) (<50/<69) (<66/<68) 2.18 MILES SSE

-J CS-137 IS0 537 56 1026 16C4 INDICATOR 0 (3/4) (0/2) (4/4) VINCENT DAM

(<44/1130) (<461<65) (921/1130) 2.18 MILES SSE AIR PARTICULATE GR-B 263 10 16 16 17 10S3 INDICATOR 0 (E-3 PCI/CU.METER) (204/210) (52/53) (53/53) KEEN ROAD

(<7/32) (6/33) (8/31) 0.50 MILES E GAMMA 20 BE-7 N/A 60 62 64 14SI INDICATOR (16/16) (414) (8/8) LONGVIEW ROAD (40/68.9) (48.7n5) (49.1/68.9) 0.63 MILES SSE MN-54 N/A 1.0 0.9 1.2 IISI INDICATOR 0 (0/16) (0/4) (0/8) LUS INKCI(MATiON CFN I OR

(< 0.5/< 1.4) (<0.7/< 1.1) (< 0.91< 1.4) 0.38 MILES ESE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED INPARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2005 Name of Facility: LIMERICK GENERATING STATION DOCKET NUMBER: 50-352 & 50-353 Location of Facility: MONTGOMERY COUNTY, PA REPORTING PERIOD: 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS CO-58 N/A 1.1 1.0 1.3 I ISI INDICATOR 0 (0/16) (0/4) (0/8) LGS INFORMATION CENTER

(<0.7/< 1.7) (< 0.8< 1.2) (< 1.0/< 1.6) 0.38 MILES ESE CO-60 N/A 1.2 0.9 1.2 14SI INDICATOR 0 (0/16) (0/4) (0/8) LONGVIEW ROAD

(< 1.0/< 1.5) (< 0.8/< 1.0) (<1.1/< 1.5) 0.63 MILES SSE CS-134 50 0.9 0.8 1.1 I1SI INDICATOR 0 (0/16) (0/4) (0/8) LGS INFORMATION CENTER

(< 0.4/< 1.3) (< 0.7/< 0.9) (< 0.9/< 1.2) 0.38 MILES ESE CS-137 60 0.9 0.8 1.0 11S INDICATOR 0 (0/16) (0/4) (0/8) LGS INFORMATION CENTER

(< 0.6/< 1.3) (< 0.7/< 0.9) (< 0.9/< 1.2) 0.38 MILES ESE

> AIR IODINE 1-131 263 70 20 15 20 13CI INDICATOR 0 8o (E-3 PCI/CU.METER) (0/210) (0/53) (0/102) KING ROAD

(<4/<40) (<5/<26) (<4/<38) 2.84 MILES SE MILK 1-131 118 1 0.5 0.4 0.6 36EI CONTROL 0 (PCI/LITER) (0/92) (0/26) (0/8)

(< 0.2/< 1.0) (< 0.2< 0.9) (< 0.3/< 0.9) 4.70 MILES N GAMMA 118 K-40 N/A 1302 1308 1341 25CI INDICATOR 0 (92/92) (26/26) (44144)

(1110/1490) (1140/1510) (1150/1490) 2.69 MILES WSW CS-134 15 5 S 6 25EI INDICATOR 0 (0/92) (0/26) (0/8)

(<1/<1 1) (<I/<10) (<4/<B)

THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2005 Nume onf Foilitv! LINMERICK GENERATING STATION DOCKET NUMBER: 50-352 & 50-353 Location of Facility: MONTGOMERY COUNTY, PA REPORTING PERIOD: 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBEROF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS CS-137 18 6. . 6 7 25EI INDICATOR 0 (0/92) (0/26) (0/8)

(<1/<12) (<2/<10) (<51<11) 8A-140 60 22 22 27 25E1 INDICATOR 0 (0/92) (0o26) (0/8)

(<5/<53) (<5/<43) (<141<53)

LA-140 15 6 7 27 25EI INDICATOR (0/92) (0/26) (0/8)

(<1/<13) (<2/<12) (<4/<13)

DIRECT RADIATION TLD-QUARTERLY 160 N/A 7.28 8.6 11.1 13S2 INDICATOR 0 (MILLI-ROENTGEN/STD.MO. (156/156) (4/4) (414) 500 KV SUBSTATION (5.3/12.2) (7.9/9.3) (10.1/12.2) OAI MILES SEOF SITE lb THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND THE POSiIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED INPARENTHESES (F)

Intentionally Left Blank APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHODS

TABLE B-1: Location Designation and Identification System for the Limerick Generating Station xYz General code for identification of locations, where:

xx Angular Sector of Sampling Location. The compass is divided into 36 sectors of 10 degrees each with center at Limerick's Units 1 and 2 off-gas vents. Sector 36 is centered due North, and others are numbered in a clockwise direction.

Radial Zone of Sampling Location (in this report, the radial distance from the Limerick vent for all regional stations).

S : on-site location E : 4-5 miles off-site A : 0-1 mile off-site F : 5-10 miles off-site B: 1-2 miles off-site G: 10-20 miles off-site C : 2-3 miles off-site H : 20-100 miles off-site D : 3-4 miles off-site z - Station's Numerical Designation within sector and zone, using 1, 2, 3 ... in each sector and zone.

B-1

TABLE B-2: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Limerick Generating Station, 2005 Location Location Description Distance & Direction From Site A qitrffrp WatAr 13B1 Vincent Dam (indicator) 1.75 miles SE 24S1 Limerick Intake (control) 0.20 miles SW 10F2 Perkiomen Pumping Station (control) 7.25 miles F R. nrinking (Pntahl^) Watar 151F4 Philadelphia Suburban Water Company (indicator) 8.62 miles SE 15F7 Phoenixville Water Works (indicator) 6.33 miles SSE 16C2 Citizens Home Water Company (indicator) 2.66 miles SSE 28F3 Pottstown Water Authority (control) 5.84 miles WNW C Milk - hl-wPkly / monthly 10F4 6.60 miles ESE 18EI 421 miles S 19B1 1.95 miles SSW 23F1 Control 5.02 miles SW 25C1 2.69 miles WSW D Milk - qgiartPrly 25E1 4.27 miles WSW 36E1 Control 4.70 miles N F Air Partirulatpq I Air Irrlinr 10S3 Keen Road 0.50 miles E 11S1 LGS Information Center 0.38 miles ESE 11S2 LGS Information Center 0.38 miles ESE 13C1 King Road 2.84 miles SE 14S1 Longview Road 0.63 miles SSE 22G1 Manor Substation (control) 17.73 miles SW F kEih 16C5 Vincent Pool (indicator) Downstream of Discharge 29C1 Pottstown Vicinity (control) Upstream of Intake G. SPdimJ!n3 16B2 LInfield Bridge (indicator) 1.35 miles SSE 16C4 Vincent Dam (indicator) 2.18 miles SSE 33A2 Upstream of Intake (control) 0.84 miles NNW B-2

TABLE 13-2: Radiological Environmental Monitoring Program - Sampling Locations. Distance and Direction, Umerick Generating Station, 2005 Location Location Description Distance & Direction From Site H nvironmental Dnsimptry - T lD E.....

SP Rmda 0.60 mies; N 36S2 Evergreen & Sanatoga Road 0.44 miles NNE 3S1 Sanatoga Road 0.45 miles NE 5S1 Possum Hollow Road 0.59 miles ENE 7S1 LGS Training Center 0.50 miles E 10S3 Keen Road 0.38 miles ESE 11S1 IGS Information Center 0.41 miles SE 13S2 500 KV Substation 0.63 miles SSE 14S1 Longview Road 0.26 miles S 18S2 Rail Line along Longview Road 0.19 miles SSW 21S2 Near Intake Building 0.53 miles SW 23S2 Transmission Tower 0.46 miles WSW 25S2 Sector Site Boundary 0.40 miles W 26S3 Met. Tower #2 0.55 miles WNW 29S1 Sector Site Boundary 0.26 miles NW 31SI Sector Site Boundary 0.58 miles NNW 34S2 Met. Tower #1 innrAliatDnJance 36D1 Siren Tower No. 147 3.51 miles N 2E1 Laughing Waters GSC 4.76 miles NNE 4E1 Neiffer Road 4.78 miles NE 7E1 Pheasant Road 4.26 miles ENE 1OE1 Royersford Road 3.94 miles E 10F3 Trappe Substation 5.58 miles ESE 13E1 Vaughn Substation 4.31 miles SE 16F1 Pikeland Substation 5.04 miles SSE 19D1 Snowden Substation 3.49 miles S 20F1 Sheeder Substation 5.24 miles SSW 24D1 Porters Mill Substation 3.97 miles SW 25D1 Hoffecker & Keim Streets 3.99 miles WSW 28D2 W. Cedarville Road 3.83 miles W 29E1 Prince Street 4.95 miles WNW 31D2 Poplar Substation 3.87 miles NW 34E1 Vamell Road 4.59 miles NNW Cnnfmi And A=dal IntaieSI 5H1 Birch Substation (control) 24.76 miles NE 6C1 Pottstown Landing Field 2.14 miles NE 9C1 Reed Road 2.15 miles E 13C1 King Road 2.84 miles SE 15D1 Spring City Substation 3.20 miles SE 17B1 Linfield Substation 1.60 miles S 20D1 Ellis Woods Road 3.06 miles SSW 31D1 Lincoln Substation 3.00 miles WNW B-3

TABLE B-3: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Limerick Generating Station, 2005 Sample Analysis Sampling Method Collection Procedure Number Sample Size Analytical Procedure Number Medium _

Surface Water Gamma Spectroscopy Monthly composite from NAI-ER5 Collection of water samples for 2 gallon TBE, TBE-2007 Gamma emitting radioisotope analysis a continuous water radiological analysis (Limerick Generating compositor. Station) Env. Inc.. GS-01 Determination of gamma emitters by

__ gamma spectroscoov Surface Water Tritium Quarterly composite NAI-ER5 Collection of water samples for 500 ml TBE, TBE-2011 Tritium analysis in drinking water by liquid from a continuous water radiological analysis (Limerick Generating scintillation compositor. Station)

Env. Inc., T-02 Determination of tritlum inwater (direct method)

Drinking Water Gross Beta Monthly composite from NAI-ER5 Collection of water samples for 2 gallon TBE, TBE-2008 Gross Alpha and/or gross beta activity In a continuous water radiological analysis (Limerick Generating various matrices compositor. Station)

Env. Inc.. W(DS)-01 Determination of gross alpha and/or gross beta In water (dissolved solids or total residue)

Env. Inc., W(SS)02 Determination of gross alpha and/or gross beta in water (suspended solids)

Drinking Water Gamma Spectroscopy Monthly composite from NAI-ER5 Collection of water samples for 2 gaflon TBE,TBE-2007 Gamma emitting radioisotope analysis a continuous water radiological analysis (Limerick Generating compositor. Station) Env. Inc., GS-01 Determination of gamma emitters by gamma soectroscooy Drinking Water Tritium Quarterly composite NAI-ER5 Collection of water samples for 500 ml TBE, TBE-2011 Tritium analysis In drinking water by liquid from a continuous water radiological analysis (Limerick Generating scintillation compositor. Station)

Env. Inc., T-02 Determination of tritium in water (direct method)

Fish Gamma Spectroscopy Semi-annual samples NAI-ER6 Colledion of fish samples for 1000 grams (wet) TBE-2007 Gamma emitting radioisotope analysis collected via radiological analysis (Limerick Generating electroshocking or other Station) Env. Inc.. GS-01 Determination of gamma emitters by technigues gamm sdctroscoov Sediment Gamma Spectroscopy Semi-annual grab NAI-ER7 Collection of sediment samples for 500 grams (dry) TBE, TBE-2007 Gamma emitting radioisotope analysis samples radiological analysis (Limerick Generating Station) Env. Inc., GS-01 Determination of gamma emitters by gamma soectroscoov Air Particulates Gross Beta One-week composite of NAI-ER8 Colecdion of air particulate and air 1 filter (approximately TBE,'TBE-2C08 Gross Alpha and/or gross beta activity in continuous air sampling Iodine samples for radiological analysis 280 cubic meters various matrices thrcugh glass fiber filter (Limerick Generating Station) weekly) paper Env. Inc., AP-02 Determination of gross alpha and/or gross beta in air oarticulate filters 1 -4

TABLE B-3: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Limerick Generating Station, 2005 Sample Analysis Sampling Method Collection Procedure Number Sample Size Analytical Procedure Number Medium __ ____.

Air Particulates Gamma Spectroscopy Quarterly composite of TBE, TBE-2023 Compositing of samples each station 13 filters TBE, TBE-2007 Gamma emitting radioisotope analysis (approximately 3600 Env. Inc., AP-03 Procedure for compositing air cubic meters) Env. Inc., GS-01 Determination of gamma emitters by particulate filters for gamma spectroscopic gamma spectroscopy analysis Air Iodine Gamma Spectroscopy One-week composite of NAI-ER8 Collection of air particulate and air continuous air sampling I filter (approximately TBE, TBE-2007 Gamma emitting radioisotope analysis Iodine samples for radiological analysis 280 cubic meters through charcoal filter (Limerick Generating Station) weekly) Env. Inc.. 1-131-02 Determination of 1-131 in charcoal Milk 1-131 91-weekly grab sample canisters by armma spectroscoov (batch method)

NAI-ER10 Collection of milk samples for 2 gallon TBE, TBE-2012 Radlolodine In various matrices when cows are on radiological analysis (Limerick Generating pasture. Monthly an Station) -

other times Env. Inc., 1-131-01 Determination of 1-131 Inmilk by anion Milk Gamma Spectroscopy Bi-weekly grab sample NAI-ER10 Collection of milk samples for exchanoe 2 gallon TBE, TBE-2007 Gamma emitting radioisotope analysis when cows are on radiological analysis (Limerick Generating pasture. Monthly an Station)

_other times Env. Inc., GS-01 Determination of gamma emitters by TLD Thermoluminescence gamma soectroscopy Quarterly TLDs NAI-ER9 Collection of TLD samples for 2 dosimeters Dosimetry comprised or two Global Dosimetry radiological analysis (Limerick Generating Panasonic 814 Station)

(containing 3 each CaSOA elements)

B-5

t t- t i If ,  :

1. t as J -

j x -

, ':  ; , 74222

• A .

A, . . S

<. _w NNE Us s- >

A, I- . ,. >I

/ \ -

' & Xt , '/ \NE ' -

, . ' - /: ...... \

, \.

. j . *. ,,,,

Figure B-1 Environmental Sampling Locations Within One Mile of the Limerick Generating Station, 2005 B-6

Figure B-2 Environmental Sampling Locations Between One and Five Miles from the Limerick Generating Station, 2005 B-7

Figure 8-3 Environmental Sampling Locations Greater than Five Miles from the Umerick Generating Station, 2005 B13-8

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY

TABLE C4.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 10F2 13B1 24S1 PERIOD JAN MAR (1) < 196 < 200 APR-JUN (1) < 164 < 168 JUL-SEP (1) < 183 < 183 OCT-DEC (1) < 159 < 158 MEAN 176 +/- 34 177 +/- 37 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-1

TABLE C-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER i 2 SIGMA STC 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 10F2 JAN (1)

FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN 0

13B1 JAN <9 <7 < 19 < 10 < 16 <8 < 11 < 18 <8 <8 < 37 < 13 FEB <8 <6 < 12 <6 < 14 <6 < 12 <8 <6 <8 < 31 <9 MAR <4 <6 <8 <4 < 10 <5 <7 <6 <4 <5 < 19 <8 APR <4 <5 < 11 <5 < 11 <6 <9 <9 <5 <5 < 23 <7 MAY <2 <3 <5 <2 <6 <3 <5 <4 <3 <3 < 11 <2 JUN <5 <4 <8 <8 <8 <5 < 6 <4 <3 <4 < .1 <4 JUL <5 <5 <9 <7 <8 <6 < 10 <6 <5 <6 < 16 <7 AUG <5 <6 < 13 <6 < 12 <5 <9 <12 <4 <5 < 22 < 11 SEP <3 <4 <6 <3 <7 <4 <5 <9 <3 <4 < 24 <6 OCT <5 < 10 <4 < 10 <5 <15 <5 <5 < 35 < 10 NOV <4 <4 <8 <5 <8 <5 <7 <5 <3 <5 < 15 <6 DEC <6 <5 < 13 <6 < 14 <7 < 12 <7 <6 <5 < 25 <7 MEAN 5

• 4 .5

• 3 10

• 8 6

• 4 10 +/- 6 5 +/- 3 8 +/- 4 9 +/- 9 5 +/- 3 5 +/- 3 23 +/- 17 7 +/- 6 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

TABLE C-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCIILITER +/- 2 SIGMA STC 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 24S1 JAN <4 <4 <9 <4 <9 <5 <8 <8 <4 <4 < 22 <7 FEB <4 <4 <4 <6 <8 <4 <7 <4 <3 <.5 < 13 <4 MAR <7 <6 < 16 <7 < 13 <6 <c13 <9 <5 <8 < 24 <68 APR <4 <5 <9 <5 < 11 <5 -c10 <7 <4 <4 < 21 <9 MAY <4 <3 <7 <5 <7 <4 <7 <5 <4 <4 < 15 <5 JUN <3 <3 <7 <4 <9 <5 <9 <5 <4 <5 < 18 <6 JUL <5 <5 < 11 <4 < 12 <4 <8 <7 <5 <86 < 19 <7 AUG <5 <6 < 10 <6 < 12 <6 < 12 <6

< 13 <6 < 35 < 12 SEP <4 <5 < 15 <9 < 14 <4 4<8 < 13 <6 <8 < 33. < 11 OCT <3 <3 <6 <3 <8 <4 <6 < 12 <3 <4 < 25 <7 NOV <3 <3 <6 <5 <7 <3 <5 <4 <3 <3 < 13 <5 DEC <4 <3 <7 <4 < 10 <4 <7 <5 <4 <5 < 15 <5 MEAN 4*i2 4 *2 9*i7 5*i3 10*+/-5 4*+/-2 8*+/-5 8*+/-7 4*+/-2 5*+/-3 21 *14 7*+/-5 0

TABLE C-11.1 CONCENTRATIONS OF TOTAL GROSS BETA IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 15F4 15F7 16C2 28F3 PERIOD JAN 3.2 +/- 1.4 3.5 +/- 1.5 2.4 +/- 1.4 3.7 +/- 1.5 FEB < 2.2 < 2.3 < 2.2 < 2.3 MAR 3.5 +/- 1.5 2.8 +/- 1.5 4.1 +/- 1.4 3.6 +/- 1.6 APR 3.7 i 1.5 < 1.9 2.5 i 1.4 3.6 +/-I 1.6 MAY 6.1 +/- 1.7 5.4

• 1.7 3.4 +/-t 1.4 6.0 +/- 1.8 JUN 3.0 +/- 1.7 5.8 +/- 1.9 3.9 +/- 1.8 4.8 +/- 1.9 JUL 4.7 +/- 1.9 3.6 +/- 1.8 3.5 +/- 1.9 5.9 +/- 2.1 AUG 5.1 +/- 1.8 4.9 +/- 1.8 4.3 +/- 1.8 5.2 +/- 1.9 SEP 6.8 +/- 1.9 6.7 +/- 1.9 5.3 +/- 1.7 6.5 +/- 2.0 OCT 6.3 +/- 1.7 5.3 +/- 1.6 4.7 +/- 1.6 4.8 +/- 1.6 NOV 4.7 +/- 1.6 4A +/- 1.6 5.3 +/- 1.7 4.4 +/- 1.6 DEC 3.7 +/- 1.6 3.9 +/- 1.6 3.4 +/- 1.6 3.9 +/- 1.7 MEAN 1.7 +/- 0.3 2.4 +/- 3.3 1.6 +/- 0.4 1.7 +/- 0.4 TABLE C-11.2 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED INTHE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 15F4 15F7 16C2 28F3 PERIOD JAN-MAR c200 - ---

< 200 < 198 < 195 APR-JUN < 165 < 164 < 164 < 167 JUL-SEP < 176 < 183 < 181 < 179 OCT-DEC < 157 < 157 < 157 < 157 MEAN 175 +/- 37 176 +/- 39 175 +/- 37 175 +/- 33 C4

TABLE C-11.3 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENFRATINt: STATION; 2nns RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA STC COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD 15F4 JAN <2

_ A _

<2

<5

<4 <4 < 4 <3 <4 -

<2 <3 < 12 <4 FEB <4 <4 <9 <4 <8 <9 <3 <5 < 4 <5 <19 <5 MAR <5 <3 <8 <9 <9 <7 <3 <3 <4 <5 <17 <4 APR <8 < 8 < 18 <5 <19 < 13, <8 <13 <8 <8 <34 < 11 MAY <6 <4 <9 <7 < 10 < 10 <5 <6 <5 <6 <20 <8 JUN <5 <6 <9 <5 < 12 <9 <5 <6 <4 <7 < 21 <7 JUL <4 <4 < 10 <3 <8 <6 <4 <5 <4 < 5 <-14 <4 AUG <4 <5 < 12 <5 < 12 <9 <6 < 12 < 5 <6 <28 < 12 SEP <6 <7 < 14 <5 < 12 <g

<  :. <7 <<16 <6 <6 <37 < 12 OCT <6 <7 < 17 <7 < 14 <13 <7 <20 <6 <7 <42 < 13 .

NOV <5 <5 < 10 <6 <8 <9 <5 <6 < 5 <5 <18 :6 DEC <4 <5 <7 <4 <10 <8 <5 <6 <4 <5 < 17 6+/-7 901 MEAN 5 A 3 5 A 3 11

• 8 5 +/- 3 10 +/- 8 9 +/-5 5 +/- 4 8+/- 11 5 +/- 3 5

• 3 23 19 8 A 7 15F7 JAN <3 <3 <7 <4 <7 <6 <4 <6 <3 <4 < 17 <6 FEB <5 <6 <11 <5 <14 <12 <7 <7 <5 <6 <'20 <6 MAR <4 <3 <7 <4 <9 <5 <4. <6 <4 <5 <19 <2 APR <c5 <5 < <6 <11 <10 <6 <10 <6 <6 <23 <7 MAY <6 <4 <5 <5 <11 <11 <5 <6 <5 <6 <23 < 5 JUN <3 - <3 <10 <5 <c9 <7. <4 c<4 <5 <5 <17 < 5 JUL <6 <5 <14 <6 <15 <12 <6 <8 <5 <7 <23 < 7 AUG <6 <5 <9 <7 <11 <12 <5 <14 <6 <7 <35 < 10 SEP <5 <6 <12 <5 <10 <11 <6 <13 <5 <5 <34 < 11 OCT <5 <5 <11 <5 <10 <9 <6 <15 <5 <4 <33 < 12 NOV <5 <5 <9 <6 <10 <9 <5 <6 <5 <5 <21 <6 DEC - V <6

- V <- ._ <.

c7 <17.. <10 <7 <8 <9 <8 <27 < 10 MEAN 5 A 2 5 +/- 2 10 +/-5 5 +/- 2 11 +/- 6 9 +/- 5 5 +/- 2 9 +/- 7 5 +/- 3 6

• 2 24 +/- 13 7+/- 6

TABLE C41.3 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCIILITER +/- 2 SIGMA STC COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 1-131 Nb-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD 16C2 JAN 9c <9 <17 <9 < 19 <17 <9 <19 <9 <10 < 42 <14 FEB <4 <3 <7 <4 <9 <7 <5 <5 <4 <3 < 14 <5 MAR <6 <4 <9 <6 < 11 <7 <6 <7 <5 <6 < 19 <6 APR <5 <5 <10 <6 <8 <10 <5 <8 <5 <5 < 26 <8 MAY <6 <5 <13 <7 < 12 <9 <6 <8 <6 <5 <8

< 22 JUN <7 <6 <12 <7 < 13 <8 <7 <6 <6 <6 < 27 <9 JUL <4 <5 <9 <5 <9 <4 <9 <6 <5 <5 < 20 <6 AUG <5 <7 <12 <5 < 13 <10 <7 <12 <5 <7 < 37 <12 SEP S5 <4 <8 <4 < 10 <10 <5 <12 <4 <5 < 28 <8 OCT <4 <4 <9 <3 <8 <8 <4 < 14 <4 <4 < 29 <7 NOV <5 <4 <12 <7 < 10 <8 <6 <7 <5 <5 < 20 <7 DEC <4 <4 <9. <4 <8 <8 <4 <5 <4 <4 < 18 <6 0)

MEAN 5 +/- 3 5 +/- 3 11 +/- 5 6 +/- 3 11 +/- 6 9 +/- 6 6 +/- 3 9

• 8 5 +/- 3 5

• 3 25 +/- 16 8 +/- 5 28F3 JAN <4 <4 <9 <4 <9 <8 <4 <9 <4 <5 <22 <8 FEB <4 <5 <10 <5 < 10 <8 <4 <6 <4 <5 <18 <5 MAR <6 <5 <10 <6 < 10 <9 <6 <7 <5 <5 <23 <5 APR <5 <5 <9 <6 < 11 <9 <6 <9 <6 <6 <26 <8 MAY <5 <5 <10 <6 < 11 <9 <4 <7 <4 <5 <20 <6 JUN <4 <6 <9 <7 <9 <7 <4 <6 <4 <5 <9 <2 JUL <5 <5 <10 <4 <9 <8 <4 <6 <4 <5 <20 <6 AUG <4 <5 <9 <3 <7 <9 <4 4,-9 <4 <3 <26 <5 SEP <5 <5 < 12 <6 < 12 < 12 <6 < 15 <5 <6 <33 < 13 OCT <5 <5 <12 <6 < 11 <8 <5 < 15 <4 <4 <29 <9 NOV <4 <4 . . <7 <4 <7 <7 <5 <5 <3 <5 <16 <4 DEC <5 <5 <8 <5 < 11 <8 <5 <6 <5 <5 <19 < 5 MEAN 5*1+/- I +/-1 10 +/- 3 5 2 101 4 3 9 +/- 2 5 +/- 2 8 +/- 7 4 +/- 1 5 +/- 1 22 +/- 13 6 +/- 6

TABLE C-lll.1 CONCENTRATIONS OF GAMMA EMITTERS IN PREDATOR AND BOTTOM FEEDER (FISH)

SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCIIKG WET i 2 SIGMA STC COLLECTION K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 1-131 Cs-1 34 Cs-137 PERIOD 16C5 PREDATOR 05/17105 2850 +/- 98 <4 <4 < 10 4 <9 22 +/- 11 <4 <5 10/20/05 3190 +/- 717 < 33 < 21 < 61 < 43 < 65 <49 <27 < 31 MEAN 3020 +/- 481 19 +/- 41 13 +/- 23 35 +/- 72 24 +/- 55 37 +/- 79 36 +/- 39 16 +/- 33 18 +/- 37 BOTTOM FEEDER 05/17105 3050 +/- 136 <6 <6 < 13 <6 < 12 36 +/- 12 <5 15 +/- 5 10/20/05 3050 +/- 1000 < 48 < 41 < 92 < 54 < 68 <75 <37 < 49 MEAN 3050 +/- 0 27 +/- 60 23 +/- 50 52 +/- 113 30 +/- 67 40 +/- 79 56 +/- 55 21 +/- 45 32 +/- 48 C)

-!J 29C1 PREDATOR 05/18/05 4450 +/- 96 <5 <5 < 10 <5 < 10 < 11 <5 <5 10/19/05 2600 +/- 645 < 39 < 44 < 83 < 44 < 72 < 69 < 47 < 46 MEAN 3525 +/- 2616 22 +/- 49 24 +/- 56 47 +/- 103 24 +/- 56 41 +/- 88 40 +/- 82 26 +/- 61 25 +/- 58 BOTTOM FEEDER 05/18/06 2980 +/- 157 < 6 <6 < 14 <6 < 14 < 14 <6 <6

< 50 < 130 < 53 < 124 < 119 <46 < 56 10/19/05 4820 +/- 853 < 45 MEAN 3900 +/- 2602 26 +/- 55 28 +/- 62 72 +/- 164 29 +/- 65 69 i 156 66 +/-F 149 26 +/- 57 31 +/- 70

TABLE C-IV.1 CONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT i.LES CL. .CTED IN THE VICINITY OF LIMERICK GENERATING STATION RESULTS IN UNITS OF PCI/KG DRY +/- 2 SIGMA STC COLLECTION Be-7 K-40 Mn-54 Co-58 Co-60 1-131 Cs-134 Cs-137 PERIOD 16B2 06/20105 < 328 11300 +/- 1220 < 53 < 39 < 57 < 49 < 40 < 44 12/15/05 < 266 11300 +/- 539 < 33 < 31 < 31 < 53 < 53 53 +/- 21 MEAN 297 +/- 88 11300 +/- 0 43 +/- 30 35 +/- 11 44 +/- 36 51 +/- 7 46 +/- 18 48 +/- 13 16C4 06/20/05 912

• 529 16000 +/- 1550 < 79 < 61 < 94 < 97 < 66 921 +/- 107 12/15/05 < 356 16500 +/- 642 < 41 < 38 < 39 < 70 . < 68 1130 +/- 51 co MEAN 634 +/- 786 16250 +/- 707 60 +/- 54 50 +/- 32 67 +/- 77 83

• 37 67

• 3 1026 +/- 296 33A2 06120105 < 493 13400 +/- 1230 < 57 < 53 <63 132

• 59 < 50 < 65 12/15/05 < 359 12500 +/- 602 < 43 < 42 <42 <73 <69 < t6 MEAN 426 +/- 190 12950 +/- 1273 50 +/- 20 47

• 16 52

• 30 102 +/- 84 60 +/- 27 56 +/- 27

TABLE C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED INTHE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF E-3 PCI/CU METER I 2 SIGMA GROUP I l GROUP II GROUP III WEEK 10S3 1Si 14S1 13C1 22G1 m_ - - -

1 26 +/- 6 26 +/- 6 27 +/- 6 29+/- 6 32

• 7 2 11 +/- 4 10 +/- 5 11 +/- 5 7 +/- 5 14 +/- 5 3 18 +/- 5 13 +/- 5 13 +/- 5 13 +/- 5 14 +/- 5 4 24 +/- 5 17 +/- 5 19 +/- 5 20 +/- 5 20 +/- 5 5 19 +/- 5 18 +/- 5 19 +/- 5 17

• 5 14 +/- 5 6 26 t 5 27 +/- 5 24 +/- 5 28 +/- 6 22 +/- 5 7 19 +/- 5 17 +/- 5 16 +/- 5 16 +/- 5 16 +/- 5 8 15 +/- 5 9 5 15 +/- 5 16 +/- 5 13 +/- 5 9 11 +/- 4 7 5 10 +/- 5 13 +/- 5 '12 +/- 5 10 12 +/- 4 17

• 5 16 +/- 5 13 +/- 5 15 +/- 5 11 11 +/- 4 14 i 5 14

• 5 16 +/- 5 12 +/- 5 12 15 +/- 4 16 +/- 5 16 +/- 5 18 +/- 5 15 +/- 5 13 12 +/- 4 10 +/- 5 11 +/- 5 14 +/- 5 9+/- 5 14 9+/-4 7 7 <7 <7 15 13 +/- 4 19 +/- 5 15

• 5 16 +/-5 14 5 16 11 +/- 5 10

• 5 13 +/- 5 11 +/-5 14 5 17 12 +/- 4 11 5 13 +/- 5 9 5 13 5 18 8+/-5 11 +/- 5 9+/-5 '8 8 5 19 15 + 5 14 +/- 5 27 +/- 6 8 5 14 5 20 11 +/- 5 9 5 9+/-5 11 5 8 5 21 9+/-4 7 9+/-5 <7 8 5 22 10 +/- 4 8 4 7+/-4 8 4 9 4 23 9+/-5 11 +/- 5 15 +/- 6 12 5 13 5 24 23 +/- 5 18 +/- 5 18 +/- 5 19 5 21 5 25 13 +/- 5 9 5 10 +/- 5 9 5 8 5 26 23 +/- 5 15 t 5 16 +/- 5 16 5 18 5 27 11 +/- 4 12 +/- 4 10+/- 4 11 +/-4 10 4 28 16 +/- 6 17 +/- 6 12 +/- 5 12 +/-5 13 5 29 11 +/- 5 10 +/- 5 12 +/- 5 14 +/-5 11 5 30 21 +/- 5 18 +/- 5 20 +/- 5 21 +/-5 16 5 31 18 +/- 5 21 +/- 5 18 +/- 5 18 +/-5 22 5 32 31 + 6 30 +/- 6 28 +/- 6 24 +/-5 33 6 33 28 + 6 32 +/- 6 25 +/- 5 28 +/-5 27 5 34 20 +/- 5 23 +/- 5 21 +/- 5 21 +/-5 22 5 35 11 +/- 5 12 +/- 4 13 +/- 5 14 +/-5 14 5 36 14 +/- 5 13 +/- 5 16 +/- 5 12 +/- 5 17 5 37 24 +/- 6 22 +/- 5 22 +/- 5 22 +/-5 21 5 38 25 +/- 5 18 +/- 5 19

• 5 (1) 20 5 39 30 +/- 6 27 +/- 6 29 +/- 6 (1) 23 5 40 18 +/- 5 20 +/- 5 16 +/- 5 16 +/-6 17+/- 5 41 18 +/- 5 11 +/- 5 14 +/- 5 13 +/-5 16+/- 5 42 9+/-4 8 4 7+/-4 9 4 6 4 43 11 +/- 5 11 +/- 5 14 +/- 5 15 5 13 5 44 11 +/- 5 10 +/- 5 12 +/- 5 7 4 10 4 45 29 +/- 6 28 +/- 6 31 +/- 6 25 5 22 5 46 22 +/- 5 23 +/- 5 21 +/- 5 18 5 23 5 47 22 +/- 5 16 +/- 5 19 +/- 5 17 5 23 5 48 15 +/- 5 17 +/- 5 14 +/- 5 15 5 15 5 49 12 +/- 5 17 +/- 5 16 +/- 5 11 5 12 5 50 27 +/- 6 26 +/- 5 30 +/- 6 29 +/-6 27 5 51 13 +/- 5 16 +/- 5 15 +/- 5 13 +/-5 13 5 52 27 +/- 5 32 +/- 5 29

• 5 30 +/-5 33+/- 5 53 15 +/- 5 11 5 13 +/- 5 14 +/-5 9+/- 4 MEAN 17 +/- 13 16 +/- 13 16 +/- 13 15 +/- 12 16 +/- 13

('I) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-9

TABLE C-V.2 MONTHLY AND YEARLY MEAN VALUES OF GROSS BETA CONCENTRATIONS (E-3 PCIICU METER) IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 GROUP I - ON-SITE LOCATIONS GROUP II - INTERMEDIATE DISTANCE GROUP III - CONTROL LOCATIONS LOCATIONS COLLECTION MIN. MAX. MEAN +/- COLLECTION MIN. MAX. MEAN +/- COLLECTION MIN. MAX. MEAN +/-

PERIOD 2 SD PERIOD 2 SD PERIOD 2SD

- - - N 12/28/04 - 01/31/05 10 27 18 +/- 11 12/28/04 - 01/31/05 7 29 17 t 16 12128104 - 01131105 14 32 19 +/- 15 01/31105 - 02128105 7 27 16* 13 01/31/05 - 0228/05 13 28 18+/- 13 01/31/05 - 02/28/05 12 22 16 +/- 9 02V28/05 - 03/28/05 10 17 14 +/- 5 02V28/05 - 03/28/05 13 18 15* 4 02/28/05 - 03/28/05 9 15 13 +/- 6 03128/05 - 05102V05 <7 19 11+/- 6 03128/05 - 05/02V05 <7 16 10+/- 8 03/28105 - 05/02/05 <7 14 11+/-7 05/02105 - 05/31/05 <7 27 11 +/- 11 05/02105 - 05/31/05 <7 11 8* 3 05/02105 -05/31/05 8 14 10 +/- 6 05/31/05 - 06/27/05 9 23 15+/- 10 05/31/05 - 06/27/05 9 19 14 +/- 9 05/31/05 - 06/27/05 8 21 15* 12 06127/05 - 08/01/05 10 21 15+/- 8 06/27/05 - 08/01/05 11 21 15* 9 06127/05 - 08/01/05 10 22 14C+/-10 08/01/05 - 08/29105 11 32 23* 15 08/01/05 - 08/29/05 14 28 22 +/- 11 08101/05 - 08/29/05 14 33 24

• 17 08129105 - 10/03/05 13 30 21 +/- 11 08/29/05 - 10/03/05 12 22 17 +/- 9 08/29/05 -10/03/05 17 23 20*+/- 5 10/03/05 - 10131/05 7 18 11* 6 10/03/05 - 10/31/05 7 15 11*7 10/03/05 -10/31/05 6 16 11*8 10/31/05 -11/28/05 14 31 21

• 11 10/31/05 - 11/28/05 15 25 19+ 8 10/31/05 - 11/28/05 15 23 21 +/- 6 11/28105 - 01/03106 11 32 20 +/- 15 11/28/05 - 01/03/06 11 30 19* 18 11/28/05 - 01/03/06 9 33 19 +/- 21 12/28/04 - 01/03/06 < 7 32 16 +/- 8 12/28/04 - 01/03/06 <7 30 15 +/-8 12/28/04 - 01/03/06 6 33 16 +/-9 0

TABLIE C-V.3 CONCENTRATION OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED INTHE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF E-3 PCI/CU METER *2 SIGMA STC COLLECTION Be-7 Mn-54 Ct-58 Co-60 Cs-134 Cs-137 PERIOD 10S3 12/28 - 03/28/05 61 +/- 13 < 0.9 < 0.8 < 1.0 < 0.8 < 0.8 03/28 - 06/27/05 64 +/- 11 < 0.5 < 0.8 < 1.1 < 0.5 < 0.8 06/27 - 09/26/05 64 t 13 < 1.1 < 1.2 < 1.2 < 0.9 ( 1.0 09/26 - 01/03/06 40 +/- 9 < 1.0 < 1.1 < 1.1 < 1.1 < 0.9 MEAN 57 +/- 23 0.9 2 0.5 1.0 +/- 0.4 1.1 t 0.1 0.8 +/- 0.5 0.9 j 0.3 1iSi 12/28 - 03/28/05 61 +/- 14 ( 0.9 < 1.0 < 1.0 < 0.9 ( 0.9 03/28 - 06/27105 62 +/- 16 < 1.4 <1.6 <1.3 <1.1 <0.9 06/27 - 09/26/05 68 +/- 17 < 1.3 < 1.3 < 1.4 < 1.1 < 1.1 09/26 - 01/03/06 50 +/- 9 < 1.1 < 1.2 < 1.2 < 1.2 < 1.2 MEAN 60 +/- 15 1.2 +/- 0.4 1.3 +/- 0.4 1.2 +/- 0.4 1.1 +/- 0.3 1.0 : 0.3 13C1 12/28 - 03/28/05 65 +/- 13 ( 0.6 < 1.0 ( 1.1 < 0.4 < 0.6 03/28 - 06/27/05 60 +/- 12 < 1.0 ( 1.3 ( 1.4 < 0.9 < 1.0 06/27 - 09/26/05 62 +/- 16 ( 1.1 < 1.2 c 1.2 ( 0.9 < 0.9 09/26 - 01/03/06 48 +/- 10 < 12 < 1.3 < 1.0 < 1.3 < 1.2 MEAN 59 +/- 15 1.0 +/- 0.5 1.2 +/- 0.3 1.2 t 0.3 0.9 +/- 0.7 0.9 :t 0.5 14S1 12/28 - 03/28/05 69 +/- 13 < 0.9 < 1.0 < 1.2 ( 0.6 < 0.6 03/28 - 06/27/05 69 +/- 15 < 0.8 ( 0.7 < 1.1 ( 0.6 < 0.7 06127 - 09/26/05 68 +/- 16 < 1.3 < 1.7 < 1.5 < 1.1 < 1.3 09/26 - 01/03/06 49 +/- 11 < 1.2 < 1.1 < 1.2 < 12 ( 1.2 MEAN 64* 19 1.0 +/- 0.5 1.1 +/- 0.8 1.2 +/- 0.3 0.9 +/- 0.7 1.0 :: 0.8 22G1 12/28 - 03128/05 55 +/- 11 < 0.7 ( 0.8 < 0.8 < 0.7 < 0.7 03/28 - 06/27/05 75 +/- 15 <.1.1 ( 1.0 < 0.9 < 0.8 < 0.9 06/27 - 09/26/05 71 +/- 13 < 1.0 < 1.2 < 1.0 < 0.8 < 0.8 09/26 -01/03/06

• 49 +/- 8 < 0.8 < 0.9 < 1.0 < 0.9 < 0.8 MEAN 62 +/- 25 0.9 I 0.4 1.0 +/-t0.3 0.9 t 0.2 0.8 +/- 0.2 0.8 +/- 0.1 C-11

TABLE C-VI.' CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF E-3 F'CI/CU METER +2 SIGMA GROUP I I . .

GROUP II I GROUP III WEEK 10S3 lisi 14S1 13C1 22G1 1 '20 < 21 < 21 < 22 < 14 2 '20

• 22 < 22 < 22 11 3 < 14 < 15 < 15 < 15 <8 4 < 20 < 21 < 22 < 22 < 14 5 <14 < 15 < 16 < 16 <8 6 <13

• 14 < 15

• 15 <8 7 <13 < 16 <18 < 17 < 22 8 <16

• 17 <17 < 18 < 13 9 <17

• 18 <18 < 18 < 10 10 <17

• 19 <19 < 19 < 10 11 <19 < 21 < 21 <21 < 10 12 <11

• 12 < 12 < 12 <6 13 *17 < 18 < 18

• 18 < 13 14 '17 < 19 <19 < 19 < 10 15 *17 < 18 <18 < 19 < 10 16 <9 9 < 10 < 10 <5 17 <5 '6 <6 <4 <6 18 *12 < 13 < 14 < 14 < 10 19 < 15 < 16 <16

• 16 <9 20 *15 < 11 <16 < 16 < 16 21

• 16 < 18 <18 < 18 <9 22 < 20 <22 < 22

• 23

• 12 23 < 20 22 < 22 < 22

• 15 24

• 16 < 17 < 17

• 18 < 13 25 < 15 < 17 < 17 < 17

• 13 26 < 13 < 14 < 15 < 15 <8 27 22 < 21 < 20 < 20 < 14 28 < 23

• 22 < 14 < 22 < 22 29

• 18

• 17 <17 < 17 <9 30 < 19

• 18 < 18 < 18 < 13 31 22

• 21 < 21 < 21 < 16 32 22 ' 21 < 20 < 20

• 14 33

• 18

• 18 <18

• 17 < 12 34 ' 13

• 16 <16

• 16 < 16 35 < 13 22 < 22

• 22

• 22 36 *22 < 21 <13 < 21 < 21 37 < 14 < 24 < 24 ' 24 < 24 38 22

• 21 < 21 (1) < 21 39

• 25

• 24 < 24 (1) <24 40 < 27 < 26 < 25 < 29 < 14 41 < 40 ' 38 < 38 < 38

• 25 42 < 36 < 35 < 35

• 34

• 22 43 < 14 < 18 <17

• 17 < 17 44

• 22 < 21 < 21

• 21 < 16 45 ' 19 < 18 < 18

• 18 <9 46 ' 15 < 19 < 19 < 19 < 19 47 < 37

• 35 < 35 < 35 < 18 48 < 25

• 24 < 23

• 23

• 16 49 < 19

• 18 < 18

• 18 < 13 50

• 27 < 17 < 25

• 26 < 26 51 < 32

• 31 < 31

• 30 < 20 52 < 26 < 25 < 13 < 24 < 24 53

• 27

• 26 < 26

• 26

• 19 MEAN 19 +/- 14 20 +/- 12 19 +/- 12 20 +/- 12 15 +/- 11 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-12

TABLE C-VII.1 CONCENTRATIONS OF 1-131 IN MILK SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER *2 SIGMA CONTROL FARMS I INDICATOR FARMS COLLECTION 23F1 36E1 10F4 18E1 19B1 25C1 25E1 PERIOD 01/11/05 < 0.4 < 0.3 < 0.5 < 0.4 < 0.9 < 0.6 < 0.5 02/15/05 <0.4 < 0.5 <0.5 < 0.8 <0.5 03/08/05 ' 0.2 < 0.2 < 0.3 < 0.3 < 0.3 04105105 < 0.7 < 0.9 < 0.7 < 0.7 < 0.6 <0.4 < 0.3 04119/05 < 0.3 < 0.4 <0.5 <0.3 < 0.4 05/03105 < 0.3 < 0.3 < 0.4 < 0.3 < 0.3 05117105 <0.5 <0.6 <0.5 < 0.5 < 0.5 05131105 <0.2 < 0.3 c 0.3 < 0.5 < 0.3 06/14/05 < 0.2 < 0.2 <0.3 < 0.3 <0.3 06/28/05 < 0.4 < 0.4 < 1.0 < 0.8 < 0.4 07/12105 < 0.5 < 0.5 < 0.4 < 0.4 < OA < 0.5 < 06 07/26/05 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 08/09/05 <0.3 < 0.4 < 0.3 < 0.6 <0.3 08/23/05 < 0.7 < 0.8 < 0.7 < 0.5 < 1.0 09/06/05 < 0.5 < 0.6 c 0.2 < 0.5 < 0.3 09/20/05 < 0.5 < 0.3 < 0.5 < 0.5 < 0.5 10/04/05 < 0.4 < 0.7 < 0.5 < 0.5 < 0.8 <0.5 < 0.6 10/18/05 <0.7 < 0.9 < 0.5 < 0.5 <0.5 11/01/05 < 0.4 < 0.4 < 0.4 <0.3 < 0.5 11/15/05 ' 0.4 < 0.6 < 0.4 < 0.5 < 0.4 11/29/05 < 0.5 < 0.4 < 0.4 < 0.6 < 0.8 12)13/05 < 0.4 < 0.3 < 0.4 <0.3 < 0.5 MEA' 0.4 + 0.3 0.6 + 0.5 0.5 + OA 0.4 + 0.3 0.5 + 0.4 0.4 + 0.3 0.5 + 0.3 C-13

TABLE C-V11.2 CONCENTRkTIONS OF.GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINI1Y OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF FCIILITER i 2 SIGMA STC COLLECTION K-40 Cs-134 Cs-137 Ba-140 La-140 PERIOD 10F4 01/11105 1340 +/-t 136 c4 <6 < 19 < 6 02115/05 1360 +/- 160 <5 < 6 < 21 < 5 03/08/05 1330 i 158 < 4 < 5 < 14 < 5 04/05105 1190 +/- 174 < 5 < 7 < 26 < 7 04/19/05 1250 +/-F48 <1 <1 <5 < 1 05/03/05 1200

• 158 <6 <7 < 24 <6 05/17105 1210 +/-205 <8 < 9 < 27 <4 05/31105 1210 +/- 217 <5 <5 < 27 < 7 06/14/05 1240 +/-143 <5 <7 < 27 <7 06/28/05 1360 +/- 153 c4 <5 < 17 <4 07/12/05 1290 +/-t 153 <5 <7 < 21 <7 07/26105 1230 +/- 185 <6 <8 < 38 < 12 08/09/05 1310 +/- 240 <11 < 12 < 40 < 9 08/23/05 1290 +/-149 <6 <6 < 27 < 8 09/06/05 1370 +/- 147 <5 <5 < 20 <6 09/20/05 1270 +/- 115 <3 <4 < 13 <5 10/04/05 1300 +/-146 <4 < 6 < 20 <4 10/18/05 1310 +/- 137 <3 <4 < 17 <6 11llos 1320 +/- 162 <5 < 8 < 26 <7 11/15/05 1320 +/- 109 <3 < 3 < 12 <4 11/29/05 1260 +/- 101 <4 <4 < 17 <6 12/13/05 1470 +/- 150 <3 <5 < 17 <5 MEAN 1292 +/-135 5 +/- 4 6 +/- 5 22 +/- 16 6 +/- 4 18E1 01/11/05 1250 +/- 122 < 5 <5 < 21 <6 02115/05 1190 +/- 180 < 5 <5 < 23 <7 03108/05 1300 +/-147 < 6 <7 < 26 <7 04105/05 1350 +/-147 <4 <4 < 15 <4 04/19/05 1220 +/- 52 <2 <2 <7 <2 05/03/05 1220 +/- 135 <4 <5 < 17 <6 05/17/05 1260 +/- 188 < 7 < 10 < 31 < 12 05131/05 1280 +/- 221 <9 < 10 < 31 <4 06114/05 1300 +/-172 <7 <6 < 29 < 9 06128105 1320 +/-159 <4 <6 < 20 <5 07/12/05 1410 +/- 175 <4 <6 < 20 <6 07/26105 1430 +/-174 < 6 < 7 < 34 <9 08/09/05 1270 +/-162 < 4 < 6 < 17 <5 08123105 1290 +/-133 < 5 < 6 < 25 <6 09/06105 1110 +/- 164 < 5 < 6 < 18 <5 09/20/05 1270 +/-137 < 5 < 7 < 26 <7 10104/05 1310

• 155 < 5 < 7 < 32 < 10 10/18/05 1290 +/- 171 < 5 < 8 < 35 < 8 11/01105 1320 +/-123 < 5 < 5 < 23 <7 11/15/05 1310 +/- 133 <4 < 5 < 18 <6 11/29/05 1280

• 114 < 3 <4 < 16 <4 12/13/05 1180 +/- 111 <4 <5 < 20 < 7 MEAN 1280 +/- 142 5 +/- 3 6 +/- 4 23 +/- 14 7 +/- 5 C-14

TABLE C-Vil.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES .

COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER

• 2 SIGMA STC K-40 Cs-134 Cs-137 Bsa-140 La-140 1931 01111/05 1280 +/- 97 <3 <4 < 14 <4 02115105 1190 t 214 <9 <9 *< 36 < 10 03/08/05 1140 t 162 <4 <4 < 13 <4 04/05/05 1320 t 157 <3 <5 *< 16 <5 04119105 1320 t 45 <2 <2 <6 <2 05103/05 1300 +/- 130 <5 <6 . < 21 <7 05117105 1300 +/- 172 <7 <7 *< 23 <9 05131105 1280 +/- 169 <6 <7 < 24 S8 06114105 1440 +/- 135 <5 <5 < 20 <6 06/28/05 1260 +/- 184 <7 <8 < 31 <8 07/12V05 1350 +/- 186 <6 <7 < 25 <9 07126/05 1310 +/- 150 <5 <6 < 24 <7 08/09/05 1290 +/- 140 <5 <6 < 19 <6 08123/05 1270 +/- 145 <4 <4 < 20 <6 09/06/05 1340 +/- 165 <6 <7 < 22 <7 09/20/05 1340 +/- 110 <4 <4 < 19 < 5 10/04/05 1370 +/- 131 < 5 <6 < 30 <4 10/18/05 1390 i 127 <4 <5 < 25 <7 11/01/05 1320 +/- 148 <3 <4 < 20 <5 11/15/05 1270 +/- 93 <4 <4 < 15 <4 11/29/05 1370 +/- 120 <4 <5 < 20 <7 12113/05 1280 +/- 140 <4 <4 < 20 <4 MEAN 1306 +/- 128 5 +/- 3 5 +/-.4 - 21 +/- 13 6 +/- 4 23F1 01/11/05 1400 +/- 102 <3 <4 < 14 <4 02/15/05 1300 +/- 179 <6 <5 < 27 <8 03/08/05 1280 +/- 153 <4 <6 '<14 c4 04/05/05 1360 +/- 145 <6 <6 *< 23 <8 04/19/05 1270 +/- 49 <1 <2 <5 <2 05/03/05 1260 +/- 142 <5 <6 < 23 <6 05/17/05 1170 +/- 249 < 10 < 10 < 37 < 12 05/31/05 1140 +/- 164 <7 <9 < 22 < 10 06114/05 1270 +/- 130 <3 <3 < 17 < 5 06128/05 1390 +/- 153 <5 <7 *< 19 c 7 07/12105 1200 +/- 141 <6 <7 < 21 <7 07126/05 1360 +/- 176 <5 <6 < 22 <5 08/09/05 1410 +/- 140 <5 <6 < 15 <5 08/23/05 1290 +/- 139 <4 <4 < 15 <5 09106/05 1300 +/- 147 <5 <6 < 19 <6 09/20/05 1270 +/- 137 <5 <6 < 27 <7 10/04/05 1480 +/- 217 <6 <8 < 35 < 12 10/18/05 1510 +/- 139 <5 <5 < 27 < 11 11/01/05 1300 +/- 146 <6 <6 < 28 < 10 11/15105 1250 +/- 119 <2 <4 < 11 <3 11/29/05 1290 +/- 126 <5 <5 < 23 <6 12/13/05 1260 +/- 149 <5 <6 < 27 <9 MEAN 1307 +/- 182 5 +/-3 6 +/- 4 21 +/- 15 7 +/- 6 C-15

TABLE C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA STC K-40 Cs-134 Cs-1 37 Ba-140 La-140 25C1 01/1,/05 1370 +/-115 <3 <3 < 10 <4 02/15/05 1280 +/- 192 <8 <11 < 32 < 7 03/08/05 1310 +/- 130 <5 <5 < 20 < 6 04/05/05 1150 +/- 155 <7 <6a < 34 <9 04/19/05 1360 +/- 117 < 4 <5 < 18 < 6 05/03/05 1290 +/- 172 <4 <5 < 17 <3 05/17/05 1370

• 163 < 5 <8 < 29 <8 05/31/05 1470

• 203 < 5 <6 < 21 <7 06/14/05 1400 +/- 127 < 4 <5 < 23 < 6 06/28/05 1290 +/- 183 < 5 <5 < 18 < 5 07/12/05 1490 +/- 186 <4 <6 < 17 <4 07/26/05 1370

• 176 <4 <5 < 23 <5 08/09/05 1260

• 178 < 5 <5 < 19 <5 08/23/05 1430 +/- 128 <5 <5 < 23 <7 09/06/05 1340 +/- 178 <7 <8 < 28 <6 09/20/05 1230 +/- 150 <5 <6 < 21 <7 10/04/05 1420 +/- 167 <6 <8 < 37 <5 10/18/05 1300 +/- 151 <4 <5 < 22 < 6 11/01/05 1320 +/- 140 <5 <6 < 24 <7 11/15/05 1370 +/- 131 < 4 <5 < 16 <5 11/29/05 1330 +/- 103 <4 <4 < 17 <5 12/13/05 1360 +/- 128 < 5 <5 < 24 <7 MEAN 1341 +/- 156 5 +/- 2 6+/- 4 22 +/- 13 6 +/- 3 25E1 01/11/05 1290 +/- 116 <4 <.5 < 14 <5 04/05/05 1240 +/- 157 <5 <5 < 18 <4 07/12105 1150 +/- 168 <6 <8 < 24 <9 10/04/05 1300 +/- 192 < 8 <11 < 53 < 13 MEAN 1245 +/- 137 6 +/- 4 7+/- 6 27 +/- 35 8 +/- 9 36E1 01/11/05 1500 +/- 134 < 4 <4 < 17 <5 04/05/05 1320 +/- 149 < 5 <6 < 22 <7 07/12105 1280 +/- 139 <4 <6 < 20 <6 10/04/05 1150 +/- 183 <7 <8 < 43 <9 MEAN 1313 +/- 289 5 +/- 3 6 +/- 3 26 +/- 24 7 +/- 3 C-16

TABLE C-VIII.1 QUARTERLY TLD RESULTS FOR LIMERICK GENERATION STATION, 2005 RESULTS IN UNITS OF MILLI-ROENTGEN/STD. MONTH +/- 2 STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE t2 S.D.

36S2 77 +/- 1. 7.1 +/- 0.7 7.7 +/- 0.5 7.7 +/- 0.7 8.4 +/- 0.6 36D1 6.5 +/- 0.7 6.0 +/- 0.9 6.4 +/- 0.7 6.6 +/- 1.1 6.8 +/- 0.5 2E1 7.4 +/- 1.3 6.5 +/- 0.5 7.3 +/- 0.4 7.9 +/- 1.1 7.9 +/- 0.9 3S1 7.3 +/- 1.1 6.6 +/- 0.2 7.3 +/- 0.4 7.2 +/- 0.7 7.9 +/- 1.0 4E1 5.8 +/- 0.9 5.3 +/- 0.6 5.7 +/- 0.4 5.9 I 0.8 6.4 +/- 0.7 5S1 8.3 +/- 1.3 7.5 +/- 0.4 8.6 +/- 1.0 8.2 +/- 0.6 9.0 +/- 0.5 5H1 8.6 +/- 1.1 7.9 +/- 0.6 8.7 +/- 0.2 8.5 +/- 0.7 9.3 +/- 0.6 6C1 7.2 +/- 0.9 6.6 +/- 0.4 7.3 +/- 0.9 7.4 +/- 0.5 7.7 0.5 7S1 7.4 +/- 2.1 6.0 +/- 0.8 7.6 +/- 0.6 7.6 +/- 1.0 8.5 +/-.0.4 7E1 7.6 +/- 1.5 6.6 +/- 0.3 7.5 +/- 0.6 8.1 +/- 0.4 8.3 +/- 1.1 9C1 7.2 +/- 0.9 6.5 +/- 1.0 7.2 +/- 0.4 7.5 +/- 0.6 7.4 +/- 0.3 10S3 7.7 +/- 0.7 7.2 +/- 0.5 7.8 +/- 1.3 7.7 i 0.9 8.0 +/- 0.4 10EI 7.6 +/- 0.7 7.3 +/- 0.8 7.4 +/- 0.4 7.8 +/- 0.5 8.1 +/- 0.6 10F3 7A +/- 1.2 6.6 +/- 0.6 7.5 +/- 0.2 7.4 +/- 0.5 8.1 +/- 0.5 11S1 8.5 +/- 0.8 8.1 +/- 1.5 8.5 +/- 1.0 8.4 +/- 0.3 9.1 +/- 1.3 13S2 11.1 +/- 1.8 10.1 +/- 0.7 11.3 +/- 1.0 10.8 +/- 0.6 12.2 +/- 1.C 13C1 5.7 +/- 1.0 5.4 +/- 0.4 5.3 +/- 0.4 5.8 +/- 0.5 6.4 +/- O.E 13E1 7.4 +/- 0.7 6.9 +/- 0.5 7.7 +/- 0.4 7.5 +/- 0.5 7.5 +/- 1.1 14S1 6.9 +/- 0.7 6.5 +/- 0.5 6.9 +/- 0.9 6.8 +/- 1.1 7.3 +/- o.c 15D1 7.6 +/- 1.7 6.3 +/- 0.4 7.9 +/- 0.5 7.8 +/- 0.5 8.2 +/- 0.4 16F1 7.8 +/- 1.3 6.9 +/- 0.2 7.9 +/- 0.8 8.0 +/- 0.9 8.4 +/- O.'

17B1 7.2 +/-1.0 6.5 +/- 0.3 7.5 +/- 0.7 7.4 +/- 0.6 7.6 +/- 0.4 18S2 8.1 +/- 1.5 7.3 +/- 0.7 8.2 +/- 1.6 7.9 +/- 0.8 9.1 +/- 0.1 19D1 7.1 +/- 1.1 6.3 +/- 0.4 7.0 +/- 0.7 7A +/- 0.6 7.6 +/- 0.L 20D1 6.7 +/- 1.1 6.1 +/- 0.8 6.5 +/- 0.3 6.7 +/- 0.6 7.4 +/- 0.'i 20F1 7.1 +/- 1.5 6.2 +/- 0.3 7.0 +/- 0.3 7.4 +/- 0.5 8.0 +/- 0.'

21S2 6.7 +/- 1.0 6.0 +/- 0.5 6.7 +/- 0.5 6.8 +/- 0.5 7.3 +/- 0.3i 23S2 6.8 +/- 1.2 6.2 +/- 0.0 6.7 +/- 1.0 6.9 +/- 0.3 7.6 +/- 0.'i 24D1 6.5 +/- 0.9 6.0 +/- 0.4 6.3 +/- 0.9 6.7 +/- 0.5 7.0 +/- 0.4 25S2 6.7 +/- 0.9 6.4 +/- 1.1 6.4 +/- 1.0 6.5 +/- 0.8 7.3 +/- O.fi 2501 6.2 +/- 1.0 5.6 +/- 0.5 6.1 +/- 0.6 6.2 +/- 0.7 6.8 +/- 0.4 26S3 6.6 +/-1.2 6.1 +/- 0.5 6.4 +/- 0.3 6.5 +/- 0.3 7.5 +/- O.

28D2 7.0 +/- 0.8 6.5 +/- 0.3 7.1 +/- 0.9 7.1 +/- 0.6 7A +/- 0.3 29S1 6.7 +/- 1.5 6.2 +/- 0.9 6.3 +/- 0.8 6.6 +/- 0.7 7.8 +/- 0.4 29E1 7.0 +/- 0.9 6.3 +/- 0.7 7.1 +/- 0.9 7.2 +/- 0.8 7.2 +/- 0.:3 31S1 7.3 +/- 1.2 6.7 +/- 0.9 7.6 +/- 0.5 6.9 +/- 0.2 8.0 +/- 0.3 3101 7.9 +/- 2.4 7.1 +/- 0.2 8.7 +/- 0.6 6.6 +/- 1.1 9.1 +/- 11 31 D2 7.5 +/- 1.3 6.7 +/- 0.3 7.5 +/- 1.0 7.4 +/- 0.6 8.3 +/- 0.4 34S2 7.4 +/- 1.4 6.5 +/- 1.0 7.6 +/- 0.8 7.5 +/- 0.6 8.2 +/- 0.3 34E1 7.2 +/- 1.2 6.7 +/- 0.5 7.2 +/- 0.8 7.0 +/- 0.5 8.1 +/- 0.6 C-17

TABLE C-VIII.2 MEAN QUARTERLY TLD RESULTS; FOR THE SITE BOUNDARY, MIDDLE AND CONTROL LOCATIONS FOR LIMERICK GENERATING STATION, 2005 --

RESULTS IN UNITS OF MILLI-ROENTGEN/ STD. MONTH +/- 2 STANDARD DEVIATIONS OF THE STATION DATA COLLECTION SITE BOUNDARY MIDDLE CONTROL PERIOD +/- 2 S. D.

JAN-MAR 6.9 +/- 2.1 6.4 +/- 1.0 7.9 +/- 0.6 APR-JUN 7.6 +/- 2.5 7.1 +/- 1.5 8.7 +/- 0.2 JUL-SEP 8.5 +/- 2.8 7.2 +/- 1.3 8.5 +/- 0.7 OCT-DEC 8.3 +/- 2.4 7.6 +/- 1.3 9.3 +/- 0.6 TABLE C-VIII.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF MILLI-ROENTGEN/STD. MONTH LOCATION SAMPLES PERIOD PERIOD PERIOD MEAN PRE-OP MEAN ANALYZED MINIMUM MAXIMUM +/- 2 S. D. +/-2S. D.

SITE BOUNDARY 64 6.0 12.4 7.8 +/- 2.4 7.6 +/- 2.4 MIDDLE DISTANCE 92 5.3 9.1 7.1 +/- 1.6 7.8 +/- 2.2 CONTROL 4 7.9 9.3 8.6 +/- 1.1 7.8 +/- 3.0 THE PRE-OPERATIONAL MEAN WAS CALCULAtTED FROM MONTHLY TLD READINGS 01/15/82 TO 12/02/84.

SITE BOUNDARY STATIONS - 36S2, 3S1, 5S1, 7S1, 10S3,1 SI, 13S2,14S1, 18S2,21S2,23S2, 25S2,26S3,29S1, 31S1, 34S2 MIDDLE DISTANCE STATIONS - 36D1, 2E1, 4E1, 6C1, 7E1, 9C1,1l0E1, 10F3, 13C1, 13E1, 15D1, 16F1, 17B1, 19D1, 20D1, 20F1, 24D1, 25D1, 28D2, 29E1, 31D1, 31D2, 34E1 CONTROL STATIONS - 5H1 C-18

TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 SURFACE WATER (TRMUM LIQUID SCINTILLATIONI COLLECTION PERIOD 10F2 13B1 24S1 JAN-MAR (1) 01/03105 - 03128/05 01103/05 - 03128/05 APR-JUN (1) 03/28/05 - 06/27/05 03/28/05 - 06127/05 JUL-SEP (1) 06127/05 - 10/03/05 06/27/05 - 10/03/05 OCT-DEC (1) 101t03105 - 01103/06 10/03/05 - 01/03106 SURFACE WATER (GAMMA SPECTROSCOPY)

COLLECTION PERIOD 10F2 13B1 24S1 JAN (1) 01/03/05 - 01131/05 01/03/05 - 01/31/05 FEB (1) 01/31/05 - 02128/05 01/31/05 - 02/28/05 MAR (1) 02/28/05 - 03/28/05 02/28/05 - 03/28/05 APR (1) 03128/05 - 05031/05 03128/05 - 05/03/05 MAY (1) 05/03105 - 05/31/05 05103/05 - 05131/05 JUN (1) 05/31/05 - 06/27/05 05/31/05 - 06127/05 JUL (1) .06/27/05 - 08/01/05 06/27/05 - 08/01/05 AUG (1) 08/01/05 - 08/29/05 08/01/05 - 08/29/05 SEP (1) 08/29105 - 10/03/05 08/29/05 - 10/03/05 OCT (1) 10/03/05 - 10/31/05 10/03/05 - 10/31/05 NOV ..(1) .10/31105 - 11/28105 10/31/05 - 11/28/05 DEC (1) 11/28/05 - 01/03/06 11/28/05 - 01/03/06 DRINKING WATER rTRmUM)

COLLECTION PERIOD .15F4 . 15F7 16C2 28F3 JAN-MAR 01/03/05 - 03/28/05 01/03/05 - 03/28/05 01/03/05 - 03/28/05 01/03/05 - 03/28/05 APR-JUN 03/28/05 - 06/27/05 03128/05 - 06/27/05 03128/05 - 06127/05 03128/05 - 06/27105 JUL-SEP 06127/05 - 10/03105 06/27/05 - 10/03/05 06127/05 - 10/03/05 06/27/05 - 10/03/05 OCT-DEC 10/03/05 - 01/03/06 10/03105 - 01/03/06 10/03/05 - 01/03106 10/03/05 - 01103106 DRINKING WATER (GROSS BETA & GAMMA SPECTROSCOPY)

COLLECTION PERIOD 15F4 15F7 16C2 28F3 JAN 01/03/05 - 01/31/05 01/03/05 - 01/31/05 01/03/05 - 01/31/05 01103/05 - 01131/05 FEB 01131/05 - 02/28105 01/31/05 - 02/28/05 01/31/05 - 02/28/05 01/31/05 - 02/28/05 MAR 02/28/05 - 03/28/05 02/28/05 - 03/28/05 02/28/05 - 03/28/05 02/28/05 - 03/28/05 APR 03/28105 - 05/03/05 03/28/05 - 05/03/05 03/28/05 - 05/03/05 03/28/05 - 05/03/05 MAY 05/03/05 - 05/31/05 05/03/05 - 05/31/05 05/03/05 - 05/31/05 05103/05 - 05/31/05 JUN 05/31/05 - 06/27/05 05/31/05 - 06/27/05 05131/05 - 06/27/05 05/31/05 - 06/27/05 JUL 06/27/05 - 08/01105 06/27105 - 08/01/05 06/27/05 - 08/01/05 06/27/05 - 08/01/05 AUG 08101/05 - 08/29/05 08101/05 - 08/29/05 08/01/05 - 08/29/05 08/01/05 - 08/29/05 SEP 08/29/05 - 10/03/05 08/29105 - 10103/05 08/29/05 - 10/03/05 08/29/05 - 10/03/05 OCT 10/03105 - 10131/05 10103/05 - 10/31/05 10/03/05 - 10/31/05 10/03/05 - 10/31/05 NOV 10/31/05 - 11/28/05 10/31/05 - 11/28/05 10/31105 - 11/28105 10/31/05 - 11/28/05 DEC 11/28105 - 01103/06 11/28/05 - 01/03/06 11/28/05 - 01/03/06 11/28/05 - 01/03/06 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-19

TABLE C4X.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY

.~~~

OF LIMERICK.

GENERATING STATION, 2005 AIR PARTICULATE (GAMMA SPECTROSCOPY)

COLLECTION 10S3 11Si 14S1 13CS 22G1 PERIOD JAN-MAR 12/28/04 - 03/28/05 12/28/04 - 03/28/05 .12/28/04 - 03/28/05 12/28/04 - 03/28/05 12/28/04 - 03/28/05 APR-JUN 03/28/05 - 06/27/05 03/28/05 - 06/27/05 03128/05 - 06/27105 03/28/05 - 06/27/05 03/28/05 - 067/05 JUL-SEP 06/27/05 - 09/26/05 06/27105 - .0926105 06/27/05 - 09/26/05 06/27105 - 09/26/05 06/27/05 - 09/26/05 OCT-DEC 09/26105 - 01103/06 09/26/05 - 01/03/06 09/26/05 - 01/03/06 09/26/05 - 01/03/06 09/26/05 - 01/03/06 AIR PARTICULATE (GROSS BETA 61-131)

COLLECTION 10S3 11S1 14S1 13CS 22G1 PERIOD

• z-oW~ - U lluoluo 2 01/03/05 - 01/10/05 01/03/05 - 01/10/05 01/03/05 - 01/10/S 01/03/05 - 01/10/05 01103/05 - 01/10/05 3 01/10/05 - 01/17/05 01/10/05 - 01/17/05 01/10/05 - 01/17/05. 01/10/05 - 01/17/05 01/10/05 - 01/17/05 4 01/17/05 - 01/24/05 01/17/05 - 01/24/05 01/17/05 - 01/4/05 01/17/05 - 01/24/05 01/17/05 - 01/24/05 5 01/24/05 - 01/31/05 01/24/05 - 01/31/05 01/4/05 - 01/31/05 01/24/05 - 01/31/05 01/24/05 - 01/31/05 6 01/31/05 - 02/07/05 01/31/05 - 0207/05 01/31/05 02/07/05 01/31/05 - 02/07/05 01/31/05 - 02/07/05 7 02/07/05 - 02/14/05 02/07/05 - 0214/05 02/07/05 - 02/14/05 02/07/05 - 0214/05 02/07/05 - 02/14/05 8 02/14/05 - 02/21/05 02/14/05 - 02/21/05 02/14/05 - 02/21/05 02/14/05 - 02/21/05 02/14/05 - 02/21/05 9 02/21/05 - 02/28/05 02/21/05 - 02/28/05 02/21/05 - 0228/05 02/21/05 - 02/28/05 02/21/05 - 02/28/05 10 02/28/05 - 03/07/05 02/28/05 - 03/07/05 02/28/05 - 03/07/05 02/28105 - 03/07/05 02/28/05 - 03/07/05 11 03/07/05 - 03/14/05 03/07/05 - 03/14/05 03/07/05 - 03/14/05 03/07/05 - 03/14/05 03/07/05 - 03/14/05 12 03/14/05 - 03/21/05 03/14/05 - 03/21/05 03/14/05 - 03/21/05 03/14/05 - 03/21/05 03/14/05 - 03/21/05 13 03/1/05 - 03/28/05 03/21/05 - 03/28/05 03/21/05 - 03/28/05 03/21/05 - 03/28/05 03/21/05 - 03/28/05 14 03/28/05 - 04/04/05 03/28/05 - 04/04/05 03/28/05 - 04/04/05 03/28/05 - 04/04/05 03/28/05 - 04104/05 15 04/04/05 - 04/11/05 04/04/05 - 04/11/05 04/04/05 - 0411/05 04/04/05 - 04/11/05 04/04/O05 - 04111/05 16 04/11/05 - 04/18/05 04/11/05 - 04/18/05 04/11/05 - 04/18/05 04/11/05 - 04/18/05 04/11/05 - 04/18/05 17 04/18/05 - 04/25/05 04/18/05 - 04/25105 04/18/05 - 04/25/05 04/18/05 - 04/25/05 04118105 - 04/25/05 18 04/25/05 - 05/02/05 04/25/05 - 05/02/05 04/25/05 - 05/02/S05 04/25105 - 05/02S05 04/25/05 - 0502/O05 19 05/02/05 - 05/09/05 05/02/05 - 05/09/05 05/02/05 - 05/09/05 0502/O05 - 05/09/05 05/02/05 - 05/09/05 20 05/09/05 - 05/16/05 05/09/C5 - 05/16/05 05/09/05 - 05/16/05 05/09/05 - 05/16/05 05/09/05 - 05/16/05 21 05/16/05 - 0523/05 05/16/05 - 05/23/05 05/16/05 - 05/23/05 05/16/05 - 0523105 05/16/05 - 05/23/05 22 05/23/05 - 05/31/05 05/23/05 - 05/31/05 05/23/05 - 05/31/05 05/23/05 - 05/31/05 05/23/05 - 05/31/05 23 05/31/05 - 06/06/05 05/31/05 - 06/06/05 05/31/05 - 06/06/05 05/31/05 - 06/06O05 05/31/05 - 06/06/05 24 06/06/05 - 06/13/05 06/06/05 - 06/13105 06/06/05 - 06/13/05 06/06/05 - 06/13/05 06/06/05 - 06/13/05 25 06/13/05 - 06/20/05 06113/05 - 06/20/05 06/13O05 - 06/20/05 06/13/05 - 0620/05 06/13/05 - 06/20/05 26 06/20/05 - 06/27/05 06/20/05 - 06/27/05 06/20/05 - 06/27/05 06/20/OS - 06/27/05 06/20/05 - 06/27/05 27 06/27/05 - 07/05/05 06/27/05 - 07/05/05 06/27/05 - 07/05/05 0627/O05 - 07/05/05 06127/05 - 07/05/05 28 07/05/05 - 07/11/05 07/05/05 - 07/11/05 07/05/05 - 07/11/05 07/05/05 - 07/11/05 07/05/05 - 07/11/05 29 07/11/05 - 07/18/05 07/11/05 - 07/18/05 07/11/05 - 07/18/05 07/11/05 - 07/18/05 07/11/05 - 07/18/05 30 07/18/05 - 07/25/05 07/18/05 - 07/25/05 07/18/05 - 07/25/05 07/18/05 - 07/25O05 07/18/05 - 07/25/05 31 07/25/05 - 08/01/05 07/25/05 - 08/01/05 07/25/05 -08/01/05 07/25/05 - 08/01/05 07/25/05 - 08/01/05 32 08/01/05 - 08/08/05 08/01/05 - 08/08/05 08/01/05 - 08/08/05 08/01/05 - 08/08/05 08/01/05 - 08/08/05 33 08/08/05 - 08/15/05 08/08/05 - 08/15/05 08/08/05 - 08/15/05 08/08/05 - 08/15/05 08/08O05 - 08/15/05 34 08/15/05 - 08/22/05 08/15/05 - 08/22/05 08/15/05 - 08/22/05 08/15/05 - 08/22/05 08/15/05 - 08/22105 35 08/22/05 - 08/29/05 08/2V05 - 08/29/05 08n22/O5 - 08/29/05 08/22O05 - 08/29/05 08/22/O5 - 08/29/05 36 08/29/05 -09/05/05 08/29/05 - 09/05/05 08/29/05 - 09/05/05 08/29/05 - 09/05/05 08/29/05 - 09/05/05 37 09/05/05 - 09/12/05 09/05/05 - 09/12/05 09/05/05 - 09/12/05 09/05/05 - 09/12/05 09/05/05 - 09/12/05 38 09/12/05 - 09/19/05 09/12/05 - 09/19/05 09/12/05 - 09/191O5 09/12/05 - 09/19/05 09/12/05 - 09/19/05 39 09/19/05 - 09/26/05 09/19/05 - 09/26/05 09/19/05 - 09/26/05 09/19/05 - 09/26/05 09/19/05 - 09/26/05 40 09/26/05 - 10/03/05 09/26/05 - 10/03/05 09/26/05 - 10/03/05 09/27/05 -10/03/05 09/26/05 - 10/03/05 41 10/03/05 - 10/10/05 10/03/05 - 10/10/05 10/03/05 - 10/10/05 10/03/05 - 10/10/05 10/03/05 - 10/10/05 42 10/10/05 - 10/17/05 10/10/05 - 10/17/05 10/10/05 - 10/17/05 10/10/05 - 10/17/05 10/10/05 - 10/17/05 43 10/17/05 - 10/24/05 10/17/05 - 10/24/05 10/17/05 - 10/24/05 10/17/05 - 10/24/05 10/17/05 - 10/24/05 44 10/24/05 - 10/31/05 10/24/05 - 10/31/05 10/24105 - 10/31/05 10/24/05 - 10/31/05 1024/O05 - 10/31/05 45 10/31/05 - 11/07/05 10/31/05 - 11/07/05 10/31/05 - 11/07/05 10/31/05 - 11/07/05 10/31/05 - 11/07/05 46 11/07/05 - 11/14/05 11/07/05 - 11/14/05 11/07/05 - 11/14/05 11/07/05 - 11/14/05 11/07/05 - 11/14/05 47 11/14/05 - 11/21/05 11/14/05 - 11/21/05 11/14/05 - 11/21/05 11/14/05 - 11/21/05 11/14/05 - 11/21/05 48 11/21/05 - 11/8/05 11/21/05 - 11/28/05 11/21/05 - 11/28/05 11/21105 - 11/28/05 11/21/05 - 11/28/05 49 11/28/05 - 12/05/05 11/28/05 - 12/05/05 11/28/05 - 12/05/05 11/28/05 - 12/05/05 11/28/05 - 12/05/05 50 12/05/05 - 12/12/05 12/05/05 - 1212/05 12/05/05 - 12/12/05 12/05/05 - 12/12/05 12/05/05 - 12/12/05 51 12/12/05 - 12/19/05 12/12/05 - 1219/05 12/12/05 - 1219/05 12/12/05 - 12/19/05 12/12/05 - 12/19/05 52 12/19/05 - 12/27/05 12/19/05 - 12/27/05 12/19/05 - 1227/05 12/19/05 - 12/27/05 12/19/05 - 12/27/05 53 12/27/05 - 01/03/06 12/27/05 - 01/03/06 12/27/05 - 01/03/06 12/27/05 - 01/03/06 12/27/05 - 01/03/06 C-20

TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 3l.D S1AT!ON JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE 3ES2 01/05/05 - 04106/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 -01/05/06 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 -01/05/06 2E-1 01/05/05 - 04/06105 04/06/05 - 07/07/05 07107/05 - 10/11/05 10/11/05 - 01/05/06 3 i1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 -01/05/06 4E.1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07107/05 - 10/11/05 10/11/05 - 01/05/06 5$'; 01'C5/05 04/06/05 .04/06/05.- 07/07105 07107/05 -. 10/11/05 10/11/05 01/05/06 5f11 01/05/05 - 04/06/05 04/06/05 - 07/07105 07/07105 - 10/11/05 10/11/05 -01/05/06 6C:1 01/05/05 - 04/06/05 04/06/05 -07/07/05 07/07/05 - 10/11/05 10/11/05 01/05/06 7';1 01/05/05 - 04/06/05 04/06/05 -07/07/05 07/07/05 - 10/11/05 10/11/05 01/05/06 7E-1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 '07107/05 - 10/11/05 10/11/05 -01/05/06 901 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 01/05/06 1('S3 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 -01/05/06 IOEI 01/05/05 - 04/06/05 04/06/05 07/07/05 07/07/05 - 10/11/05 10/11/05 -01/05/06 10(F3' 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 01/05/06 11 SI 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 -10/11/05 10/11/05 -01/05/06 1ZIS2 01/05/05 - 04/06/05 04/06105 - 07/07/05 07/07/05 - 10/11/05 10/11/05 -01/05/06 1';C1 01/05/05 - 04/06/05 04/06/05 - 07107/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 1;El 01/05/05 - 04/06/05 04/06/05 - 07/07105. 07/07/05 - 10/11/05 10/11/05 - 01/05/06 01/05/05 - 04/06/05 04/06/05 07/07/05 07107/05.- 10/11/05 10/11/05 - 01/05/06 01/05/05 - 04/06/05 04/06/05 - 07107/05'. 07/07/05 - 10/11/05 10/11/05 - 01/05/06 01/05/05 -04/06/05 04/06/05 -- 07/07/05 07/07/05 -10/11/05 10/11/05 -01/05/06 1 'B1 01/05/05 - 04/06/05 04/06/05 -- 07107/05 07/07105 - 10/11/05 10/11/05 - 01/05/06 l15G2 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 1!iD1 01/05105 - 04/06105 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 20D1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 20F1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 21S2 01/05/05 - 04/06/05 04/06/05 -'07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 23S2 01/05/05 - 04/06/05 04/06/C5 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 24D1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 -01/05/06 2fiS2 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06

• 25D1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 26S3 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 28D2 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 29S1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 29E1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 31S1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 3IDI 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 31D2 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 34S2 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 34E1 01/05/05 - 04/06/05 04/06/05 - 07/07/05 07/07/05 - 10/11/05 10/11/05 - 01/05/06 C-21

Intentionally Left Blank FIGURE C-1 RACAKI R.K^. ITUI V TATAl e%-PDAN PrTA rnMrIMTRPAT!ONS iN fpINkpim . *-

twoar~mu I%#aI ewmsu a I &-a U

• a- a elll, ma F-.% ww w ..

WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 2005 9 . . . . . . . . . . . . . . . . .

• 10 4- 'J . . .... ......... . -  :

7 _ . ... * ....... .. ' *

• Ci' . . . ,,a ' + , ' , . . , , , ,a ' . .

C S C C Ca JS CC a aa 8 - . ....... . . . .. , , a . . . . . .. . . . ..

2 O R .. --,

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-- *-IND . . , , . . . . .

O  ; . , lI ;  ;- f 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 Note: 2005 analysis changed from Insoluble & Soluble to Total Gross Beta YEAR I (I CPITICAIITV LGS CHANGED TO TOTAL GROSS BETA AT THE BEGINNING UNIT NO.1- 212/22/84 OF 2005. PREVIOUS DATA INCLUDED SUMMAI iuN uF LESS UNIT NO. 2: 08111/89 THAN VALUES.

FIGURE C-2 MEAN ANNUAL CS-137 CONCENTRATIONS IN FISH SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 2005 40 ................... ........ .... .... .. I . ,1. .. . , "- . -" . ^. ,

. .-... I. . . . .

.- - . . . .. I .. . . . . . . .

.0.. . .N O . .. . . ...

40.S 35 a *no activi a adetected.

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• I UNI

... NO 2:: .*

08118

.. a... Noe Seon 'hal of 2000'

. ....... LL ,1.\ 29C

a. a .a. . a a. .

3  : = 29Cd  :  :  :

t 1 - aCD; 25a i/ - a~~~~~~~~~~~~~~~~~~~~~...

'\ r J[. '_Ato\ a \l S  : a :ala : aS........

a :  :.... _,*--r

............Deww**@@ss**@@@@@@

20-* UNTO1> 122/4 X£w . *. P-4 *

• o 820 ... UNIIT

.. UIO:1/284

. 86NO2t.:.I I./18 89 90 91 92 9. 94 Noe 95.Seon 96 97 hal t, of982000XI .9 I.0 I.1 02 03 .0 4....

Staio 20S dicntne in 1995slgDvauseslia

FIGURE C-3 CC'MEMTRATIONS OFt aS- 37 .. I SE-.MENT SAMPL ES COLLECTED IN THE VICINITY OF LGS, 1982 - 2005 1400 ----- -  :  :  :  :

1200 .......---. C.

• a 8 l e

• a l

a l

aa l

a a a a a a a a

a a

-h 33A2

.. o. ........ .......... . .. ...... t . .. .. .. .. .. ..

80 . . . ., . . . .. . . . . . . . .. . .. . . . . .

6000- 4,.... . . ............................ ? . ....

C'20

-2600 0 -. e r

J. ............

82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 LGS CRITICALITY Ye ear UNIT NO. 1: 12122/84 UNIT NO. 2: 08/11189 CONTROL = 33A2

FIGURE C-4 MEAN MONTHLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 2005 Alr&

• IOU 135 . . . . . . . ... . . . . . . . G r upaI 120 105

• a a a a aNa T aO a:12a 84 a2a

• a a a a aNIT aO a: a0a a1a8 E 90

.% J.... ... ..... L. J . ..%.J..

16.. . .

.... 6 ..rJ.u.

75 L .. .... .. .. ..a .a a 60 Lu 45 30 15 0

82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 YEAR

FIGURE C-5.

RAtkE^ KAI~=UV Vf f~ DCTA i-nutlTrAtinkid EmA AID oADTIUiiI ATT SAMPLES COLLECTED IN THE VICINITY OF LGS, 2005 4L .. . .

oU 40 L..

E 30

.0 7 20 10 0

4 8 12 16 20 24 28 32 36 40 44 48 52 WEEK NO.

FIGURE C-6 MEAN QUARTERLY AMBIENT GAMMA RADIATION LEVELS (TLD)

IN THE VICINITY OF LGS, 1985 - 2005

. .a . . . a a . . . .

.i-- ..SITE

. a . . a

- INTERMEDIATE a . . . a a a 12 . * ' a

• CONTROL 11 ..- .-. .. C...ol............. .ntrol

. . . a . a a . . . . . a a . . a . .

. . . . . . a . . . . . . . . . . .

. a a . a a a . . . .a . . . . a

. . a a . a . . . . a.

6 10 , , , a a , a

. . a a

-a

• a .

• a a

'O ' a ' * ' 'a 1

.t _..,..,.........,..,........,...,...,....,.. I....I-- . I...................... a a .... a a1 -s--

a, En co 0

E 7

. *V ' , * *.t . '

6

.d X. l

• 5 A

Or 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00- 01 02 03 04 05 YEAR NOTE: Control Station 5H1 became the only distant location beginning in 1995

APPENDIX D DATA TABLES AND FIGURES COMPARISON LABORATORY

The following section contains data and figures illustrating the analyses performed by the quality control laboratory, Teledyne Brown Engineering (TBE). Duplicate samples were obtained from several locations and media and split between the primary laboratory, Environmental Inc. (Env) and TBE. Comparison of the results for most media were within expected ranges.

D-1

.. . .I Intentionally left blank D-2

TABI.E D4.1 CONCENTRATIONS OF GROSS BETA INSOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER +/-2 SIGMA COLLECTION 16C2 PERIOD JAN 1.4 i 1.0 FEB < 2.0 MAR < 2.0 APR < 1.9 MAY < 2.1 JUN < 2.0 JUL 1.7 +/- 1.1 AUG 1.0

• 0.8 SEP < 2.1 OCT < 2.0 NOV < 1.7 DEC < 1.9 MEAN 1.8 +/-t 0.7 TABI.E D4.2 CONCENTRATIONS OF GROSS BETA SOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER i 2 SIGMA COLLECTION 16C2 PERIOD JAN 3.0 +/- 1.1 FEB 2.0 +/- 1.0 MAR 1.7 +/- 1.0 APR 2.1 +/- 0.9 MAY 3.2 +/- 1.1 JUN 1.9 +/- 0.6 JUL 1.9 +/- 1.2 AUG 3.9

• 1.0 SEP 3.3 +/- 0.5 OCT 2.5 +/- 1.1 NOV 3.1 +/- 1.1 DEC 0.7

• 0.5 MEAN 2.4 +/- 1.8 TABLE D4.3 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 16C2 PERIOD JAN - MAR < 166 APR - JUN < 165 JUL - SEP 121 +/- 94 OCT - DEC < 188 MEAN 160 +/- 56 D-3

TABLE D41.4 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTEC INTHE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS INUNITS OF PCI/LITER +/- 2 SIGMA STC COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD 16C2 JAN <2 <5 <11 <5 <8 <6 <5 <7 <4 <3 <21 <5 FEB <7 <6 <9 <4 <10 < 13 <6 <8 <9 <6 <4

<32 MAR <2 <2 <5 <3 <3 <4 <4 <4 <3 <2 <12 5.4 APR <3 <4 <6 <3 <3 <6 <5 < 16 <4 <3 <28 <5 MAY <2 <3 <5 <2 <4 <6 <4 < 10 <2 <2 <25 JUN <5 <3 <13 <3 <3 <9 <5 <8 <6 <4 < 11 <6 JUL <4 <4 <13 c3 <10 <5 <4 <9 <3 <5 <24 4.,

AUG <6 <2 <6 <2 <8 <6 <5 <7 <4 <5 <12 SEP <3 <3 <8 <2 <6 <6 <4 <8 <4 <3 <35 <7 . .

OCT <5 <5 <12 <3 <6 <4 <4 < 14 <3 <4 <28 <6 NOV <4 <5 <17 <2 <10 <5 <7 <8 <7 <4 <20 <3 DEC <4 <4 <15 <3 <7 <4 <3 <7 <3 <6 <16 <3 '

MEAN 3.9 +/- 3.5 3.7 +/- 2.2 10 +/- 8.4 2.9 +/- 1.8 6.5 +/- 5.2 6.2 +/- 4.9 4.6 +/- 2.1 8.8 +/- 6.6 4.4 +/- 4.2 3.8 +/- 2.7 22 +/- 16 4.7 +/- 2.3.,

ci

TABLE D)-1.1 CONCENTRATIONS OF GROSS BETA INAIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF E-3 PCI/CU METER i 2 SIGMA COLLECTION I1S2 PERIOD 1 20 +/- 4 2 199 4 3 22 i 4 4 25 i 4 5 29 +/- 4 6 26 +/- 4 7 18 *4 8 199 4 9 21 i 4 10 15 i 4 11 22 +/- 4 12 15 i 4 13 5+/-4 14 199 4 15 18 i 4 16 21

• 4 17 15 +/- 4 18 199 4 19 18 +/- 4 20 14 +/- 4 21 10 +/- 3 22 14 +/- 5 23 24 i 4 24 100 3 25 23 +/- 4 26 166 4 27 18 i 5 28 17

• 4 29 24

• 4 30 29

• 5 31 36 +/- 5 32 33 i 5 33 26 +/- 5 34 177 4 35 177 5 36 27 +/- 5 37 25 +/- 5 38 30 +/- 5 39 23 +/- 5 40 14

• 4 41 9*4 42 16 +/- 5 43 15 +/- 4 44 38 +/- 5 45 24 +/- 5 46 28 +/- 5 47 28 +/- 5 48 177 4 49 37 +/- 5 50 21 +/- 4 51 37 +/- 5 52 199 5 MEAN 21 +/- 15 D-5

TABLE D41.2 CONCEN' RATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED INTHE VICINirT OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF E-3 PCI/CU METER i2 SIGMA STC COLLECTION Be-7 Mn-54 Co-58 Co-60 Cs-134 Cs-137 PERIOD 11S2 01103 - 03/28/2005 66 +/- 16 < 0.6 < 0.9 < 0.5 < 0.8 < 0.9 03/28 - 06/27/2005 75 +/- 15 < 0.6 < 0.8 <0.9 < 0.6 < 1.0 06/27 - 10/03/2005 81 +/- 15 < 0.7 <0.6 <0.8 < 0.7 <0.6 10/03 - 01/03/2006 59

• 14 < 0.6 < 1.1 < 0.8 < 0.9 < 0.6 MEAN 70 +/- 20 0.6 +/- 0.1 0.9 +/- 0.4 0.8 +/- 0.3 0.8 +/- 0.3 0.8 +/- 0.4 D-6

• TAEILE D-III.1 CONCENTRATIONS OF 1I131 BY CHEMICAL SEPARATION AND GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN'THE VICINITY OF LIMERICK GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA

• STC COLLECTION 1-131 K-40 Cs-134 -. Cs-137 Ba-140 La-140 PERIOD 19B1 01/11/2005 < 0.3 1308 +/- 121 <2 <4 < 25 <3 0 4/0512005 < 0.2 1319 +/- 116 <3 <4 < 56 < 10 0 7/1212005 < 0.2 1532 +/- 156 <5 <4 <45 <9 1 0/04/2005 < 0.3 1363 +/- 127 <5 <3 < 25 <8 MEAN 0.25 +/- 0.12 1380 +/- 207 4 +/- 3 4 +/- 1 38 +/- 31 7 +/- 7 10F4 0' 111/112005 < 0.3 1386 +/- 111.1 <5 <4 < 32 <4 ol4/05/2005 < 0.2 1285 +/- 106 <5 < 2 < 40 <8 O.7/1212005 < 0.2 1287 +/- 134. <6 <5 < 32 <9 I I)/04/2005 < 0.3 1373 +/- 116 <5 <3 < 46 <7 MEAN 0.25 +/- 0.12 1333 +/- 109 5 +/- 1 3 +/- 2 37 +/- 13 7 +/- 5 25C1 01/11/2005 (1) 04/0512005 < 0.3 1347 +/- 121 <5 <4 < 47 <4 07/12/2005 < 0.2 1402 +/- 180 <3 <3 < 37 < 11 10/04/2005 < 0.2 1287 +/- 125 <2 <2 <31 <8 MEAN 0.23 +/- 0.12 1345 +/- 114 3 +/- 3 3 +/- 2 39 +/- 16 8 +/- 7 (1) SEE PROGRAM CHANGES SECTION FOR EXPLANATION D-7

TABLE D-IV.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2005 DRINKING WATER (GROSS BETA & GAMMA SPECTROSCOPY)

COLLECTION PERIOD 16C2 JAN 01/03/2005 - 01rSI2G05 FEB 01/31/2005 -02/28/2005 MAR 02/28/2005 - 03/28/2005 APR 03/28/2005 - 05103/2005 MAY 05103/2005 -05/31/2005 JUN 05/31/2005 - 06/27/2005 JUL 06/27/2005 -08/01/2005 AUG 08/01/2005 - 08/29/2005 SEP 08/29/2005 - 10/03/2005 OCT 10/03/2005 - 10/31/2005 NOV 10/31/2005 - 11/28/2005 DEC 11/28/2005 - 01/03/2006

.. D

. --- ATR l^AUUA Of~l1 CD=PTDnCPnDV

,IKi EpI( I IU.ULA 1 IIJMV MA ru I K ur, II COLLECTION PERIOD 11S2 JAN-MAR 01/03/2005 - 03/28/2005 APR-JUN 03/28/2005 - 06/27/2005 JUL-SEP 06/27/2005 - 10/03/2005 OCT-DEC 10/03/2005 - 01/03./2006 AIR PARTICULATE (GROSS BETA)

COLLECTION COLLECTION PERIOD 11S2 PERIOD 11S2 1 01/03/2005 - 01/10/2005 27 07/05/2005 - 07/11/2005 2 01/10/2005 - 01/17/2005 28 07/11/2005 - 07/18/2005 3 01/17/2005 - 01/24/2005 29 07/18/2005 - 07/25/2005 4 01/24/2005 - 01/31/2005 30 07/25/2005 - 08/01/2005 5 01/31/2005 - 0207/2005 31 08/01/2005 - 08/08/2005 6 02/07/2005 - 0214/2005 32 08/08/2005 - 08/15/2005 7 02V14/2005 - 02/21/2005 33 08/15/2005 - 08/22/2005 8 02/21/2005 - 0228/2005 34 08/22/2005 - 08/29/2005 9 02/28/2005 - 03/07/2005 35 08/29/2005 - 09/05/2005 10 03/07/2005 - 03/14/2005 36 09/05/2005 - 09/12/2005 11 03/14/2005 - 03/21/2005 37 09/12/2005 - 09/19/2005 12 03/21/2005 - 03/28/2005 38 09/19/2005 - 09/26/2005 13 03/28/2005 - 04/04/2005 39 09/26/2tC05 - 10/03/2005 14 04/04/2005 - 04/11/2005 40 10/03/2005 - 10/10/2005 15 04/11/2005 - 04/18/2005 41 10/10/2005

• 10/17/2005 16 04/18/2005 - 04/25/2005 42 10/17/2005 - 10/24/2005 17 04/25/2005 - 05/02/2005 43 10/24/2005 -10/31/2005 18 05/02/2005 - 05/09/2005 44 10/31/2005 - 11/07/2005 19 05/09/2005 - 05/16/2005 45 11/07/2005 11/14/2005 20 05/16/2005 - 05/23/2005 46 11/14/S05 11/21/2005 21 05/23/2005 - 05/31/2005 47 11/21/2005 - 11/28/2005 22 05/31/2005 - 06/06/2005 48 11/28/2005 - 1205/2005 23 06/06/2005 - 06/13/2005 49 12/05/2005 - 12/12/2005 24 06/13/2005 - 06/20/2005 50 12/12/2005 - 12/19/2005 25 06/20/2005 - 06/27/2005 51 12/19/2005 - 12/27/2005 26 06/27/2005 - 07/05/2005 52 12127/2005 - 01/03/2006 D-8

- FFIGURE D-1 CuMPAxiSON OF M O NTIHLY I U.ALUUL I a SBEIA a

-a bt ONILV aaa a. aa 9i-a A a.a NUIKAIIUNV EN allia DRINKING WATER-SAMPLES SPLIT BETWEEN ENV AND TBE, 2005 10 8 -l- BE "--T l --...................................

7..... ........................................ .................................................................

7 1 6'

6 _................................................................................................................

13 _....................................... .......................................... ........ .

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec MONTH ENVIRONMENTAL INC. SOLUBLE AND INSOLUBLE FRACTIONS WERE COMBINED FOR TOTAL GROSS BETA COMPARISON.

FIGURE D-2 COMPARISON OF WEEKLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED FROM LGS COLLOCATED LOCATIONS IISI AND 11S2, 2005 50

. l11S2-ENV

-'-IISI -TBE

-. 20 - _

E 30<

10I.

°1 . . . . . . . . . . . . . . . .. .. . . . . . . .

U, o  !!. l-1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 WEEK NO.

APPENDIX E INTER-LABORATORY COMPARISON PROGRAM

TABLE E-i ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005 (PAGE 1 OF 3)

Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Eva uation (d)

March 2005 E4522-396 Milk Sr-89 pC-UL 96.9 107 0.91 A Sr-90 pCi/L 16.9 17.9 0.94 A E4523-396 Milk 1-131 pCUL 82.7 92.3 0.90 A Ce-141 pCi/L 217 229 0.95 A Cr-51 pCUL 314 334 0.94 A Cs-1 34 pCiUL 123 139 0.89 A Cs-137 pCi/L 125 130 0.96 A Co-58 pCUL 110 115 0.96 A Mn-54 pCUL 158 160 0.99 A Fe-59 pCi/L 118 111 1.06 A Zn-65 pCi/L 191 198 0.96 A Co-60 pCUL 140 144 0.97 A E4525-396 AP Ce-141 pCi 150 172 0.87 A Cr-51 pCi 278 250 1.11 A Cs-134 pC! 105 104 1.01 A Cs-1 37 pci 95.6 97.1 0.98 A Co-58 pCi 84.4 86.3 0.98 A Mn-54 pCi 112 120 0.93 A Fe-59 pCi 92.8 83.2 1.12 A Zn-65 pci 162 148 1.09 A Co-60 pci 102 108 0.94 A E4524-396 Charcoal 1-131 pCi 67.4 60.7 1.11 A June 2005 E4630-396 Milk Sr-89 pCi/L 89.4 88.1 1.01 A Sr-90 pCi/L 11.6 11.4 1.02 A E4631-396 Milk 1-131 pCUL 82.3 86.9 0.95 A Ce-141 pCi/L 91.6 92.4 0.99 A Cr-51 pCUL 278 303 0.92 A Cs-134 pCi/L 81.1 95.0 0.85 A Cs-1 37 pCi/L 180 189 0.95 A Mn-54 pCi/L 124 125 0.99 A Fe-59 pCUL 61.1 63.9 0.96 A Zn-65 pCi/L 156 155 1.01 A Co-60 pCi/L 136 145 0.94 A E4633-396 AP Ce-141 pci 79.2 64.2 1.23 W Cr-51 pCi 263 210 1.25 W Cs-134 pci 69.7 66.1 1.05 A Cs-1 37 pCi 135 131 1.03 A Mn-54 pCi 94.9 87.0 1.09 A Fe-59 pCi 48 44.4 1.09 A Zn-65 pCi 120 108 1.11 A Co-60 pCi 104 101 1.03 A E4632-396 Charcoal 1-131 pci 88.9 92.5 0.96 A E-1

TABLE E-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TEL.EDYNE BRtOWN ENZINEERING, 2005 (PAGE 2 OF 3)

Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBElAnalytics Evaluation (d)

September 2005 E4766-396 Milk Sr-89 pCilL 135.0 146.0. 0.92 A Sr-90 pCilL 9.7 11.5 0.84 A E4767-396 Milk 1-131 pCiIL 87.5 94.3 0.93 A Ce-141 pCUL 203 233 0.87 A Cr-51 pCi/L 279 338 0.83 A Cs-1 34 pCiQL 102 122.0 0.84 A Cs-137 pCi/L 178 195 0.91 A Co-58 pCiIL 55.3 63.4 0.87 A Mn-54 pCi/L 81.8 92.0 0.89 A Fe-59 pCiUL 59.9 61.0 0.98 A Zn-65 pCilL 120 123 0.98 A Co-60 pCUL 146 167 0.87 A E4769-396 AP Ce-141 pci 193 169 1.14 A Cr-51 pci 267 246 1.09 A Cs-134 pCi 78.4 88.8 0.88 A Cs-137 pCi 166 142 1.17 A Co-58 pci 53.7 46.0 1.17 A Mn-54 pci 81.6 66.8 1.22 W Fe-59 pCi 59.6 44.3 1.35 N (i)

Zn-65 pCi 107 89.6 1.19 A Co-60 pCi 133 122 1.09 A E4768-396 Charcoal 1-131 pCi 63.9 64.2 1.00 A December 2005 E4766-396 Milk Sr-89 pCi/L 114 128 0.89 A Sr-90 pCi/L 11.6 10.3 1.13 A E4767-396 Milk 1-131 pCi/L 79.6 74.6 1.07 A Ce-141 pCiIL 202 224 0.90 A Cr-51 pCiUL 185 193 0.96 A Cs-134 pCiUL 74.9 87.3 0.86 A Cs-137 pCUL 177 189 0.94 A Co-58 pCUL 73.9 77.5 0.95 A Mn-54 pCilL 152 152 1.00 A Fe-59 pCi/L 97.5 82.4 1.18 A Zn-65 pCi/L 161 154 1.05 A Co-60 pCilL 102 111 0.92 A E4633-396 AP Ce-141 PC! 221 201 1.10 A Cr-51 pci 195 173 1.13 A Cs-134 pci 68.4 78.3 *0.87 A Cs-137 pCi 194 170 1.14 A Co-58 pci 77.4 69.4 1.12 A Mn-54 pCi 171 137 1.25 W Fe-59 pC! 94.2 73.9 1.27 W Zn-65 pci 173 138 1.25 W Co-60 pci 109 99.1 1.10 A E-2

TABLE E-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005

(PAGE 3 OF 3)

Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBElAnalytics Evaluation (d)

December 2005 E4632-396 Charcoal 1-131; pCi - 73.3 73.3 1.00 A (1) New technician - AP not counted in petri dish resulted In high Fe-59 activity. Counting In petri dish, the Fe-59 would have been acceptaule as evidenced by the 4005AP recount data. NCR 06-01 (a) Teledynt Brown Engineering reported result.

(b) The Anaytics known value Is equal to 100% of the parameterpresent In the standard as determined by gravimetric and/or volumetic measurements made during standard preparatin.

(c) Ratio of Teledyne Brown Engineering to Analytics results.

(d) Analytics evaluation based on TBE internal QC lmits: A= Acceptable. Reported result falls within ratio limits of o.80-1.20.

W-Acceptable with warning. Reportedresultfalls within 0.70-0.80or 1.20-1.30. N= NotAcceptable. Reported result falls outside the ratio limits of < 0.70 and> 1.30.

E-3

/

TABLE E-2 ERA ENVIRONMENTAL RADIOACTIVMTY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005 (PAGE 1OF 1)

Identification Reported Known Month/Year Number Media Nuclide Units Value (a) Value (b) Control Limits Evaluation (c)

May 2005 Rad 61 Water Sr-89 pCUL 37.5 41.3 32.6- 50.0 A Sr-90 pCVL 5.37 5.92 0.00- 14.6 A Ba-133 pCUL 88.6 88.4 73.1 -104 A Cs-134 pCi/L 70.5 78.6 69.9 - 87.3 A Cs-137 pCi/L 201 201 184 -218 A Co-60 pCi/L 37.5 37.0 28.3 -45.7 A Zn-65 pCUL 122 118 97.6 - 138 A Gr-A pCi/L 35.5 37.0 21.0 - 53.0 A Gr-B pCVL 35.6 34.2 25.5 -42.9 A H-3 pCUL 24600 24400 20200 - 28600 A Rad 61 Water 1-131 pCUL 13.6 15.5 10.3- 20.7 A November 2005 Rad 63 Water Sr-89 pCUL 18.0 19.0 10.3 - 27.7 A Sr-90 pCUL 16.6 16.0 7.37 - 24.7 A Ba-1 33 pCVL 31.7 31.2 22.5 - 39.9 A Cs-1 34 pCi/L 30.8 33.9 25.2 - 42.6 A Cs-1 37 pCi/L 26.8 28.3 19.6 -37.0 A Co-60 pCUL 83.9 84.1 75.4 - 92.8 A Zn-65 pCi/L 109 105 86.8 -123 A Gr-A pCi/L 19.5 23.3 13.2 - 33.4 A Gr-B: pCi/L 34.0 39.1 30.4 - 47.8 A H-3 pCUL 12400 12200 10100- 14300 A Rad 63 Water 1-131 pCUL 17.8 17.4 12.2 - 22.6 A (a) Teledyne Brown Engineering reported result.

(b) The ERA known value Is equal to 100% of the parameter present In the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

(c) ERA evaluation: A=acceptable. Reported result falls within the Warning Limits. NA=not acceptable. Reported result falls outside of the Control Limits. CE&check for Enro. Reported result falls within the Control Limits and outside of the Warning Limit.

E-4

TABLE E-3 DOE's MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

TELEDYNE BROWN ENGINEERING, 2005

(PAGE I OF 2)

.  : l-Identification Reported Known Acceptance '

Month/Year Number m Media Nuclide Units Value (a) Value (b) Range Evaluation (c)

April 2005 05-MaW13 Water Cs-134 BqlL . 108 127 88.90-165.10 A Cs-1 37 Bq/L 305 332 232.40 -461.60 A Co-57 Bq/L 215 227 158.90 - 295.10 A-Co-60 Bq/L 241 251 175.70 - 326.30 A H-3 Bq/L 283 280 196.00 - 364.00 A Mn-54 Bq/L , 314 331 231.70 -430.30 A Sr-90 Bq/L 0.093 no range given (1) A Zn-65 Bq/L 509 496 347.20 - 644.80 A MaS13 Soil Cs-134 Bq/L 655 759 531.30 - 986.70 A Cs-137 Bq/L 310 315 220.50 -409.50 A Co-5.- Bq/L 234 242 169.40 - 314.60 A Co-60 Bq/L 219 212 148.40 - 275.60 A Mn-54 Bq/L 512 485 339.50 - 630.50 A K-40 BqlL 642 604 422.80 - 785.20 A Zn-65 BqQL 890 810 567.00 - 1053 A GrW13 Water Gr-A Bq/L 0.601 0.525 >0.0 - 1.05 A Gr-B: Bq/L 1.54 1.67 0.84 - 2.51 A RdF13 AP Cs-134 Bq/sample 3.26 3.51 2.46 - 4.56 A Cs-137- Bq/sample 2.05 2.26 1.58 - 2.94 A Co-57 Bq/sample 4.78 4.92 3.44 - 6.40 A Co-60 Bq/sample 3.02 3.03 2.12 - 3.94 A Mn-54 Bq/sample 3.31 3.33 2.33 - 4.33 A Sr-90 Bq/sample 1.15 1.35 0.95- 1.76 A Zn-65 Bq/sample 3.14 3.14 2.20 - 4.08 A GrF13 AP Gr-A Bq/sample 0.0764 0.232 >0.0 - 0.46 A Gr-B Bq/sample 0.305 0.297 0.15 - 0.45 A April 2005 RdV13 Vegetation Cs-1 34 Bqlkg 5.45 5. 3.50 - 6.50 A Cs-137 Bqlkg 4.80 4.1 2.88 - 5.34 A Co-57 Bqlkg 13.4 9.88 6.92 - 12.84 A*

Co-60 Bq/kg 3.67 3.15 2.21 -4.10 A Mn-54 Bq/kg 6.45 5.18 3.63 - 6.73 A Sr-90 Bq/kg 1.49 1.65 1.16 - 2.15 A Zn-65 Bq/kg 7.71 6.29 4.40 - 8.18 A October2005 05-MaW14 Water Cs-134 Bq/L .142 167 116.90 - 217.10 A Cs-1 37 Bq/L 302 333 233.10 - 432.90 A Co-57 Bq/L 251 272 190.40 - 353.60 A Co-60 Bq/L 243 261 182.70 - 339.30 A H-3 Bq/L 547 527 368.90 - 685.10 A Mn-54 Bq/L 383 418 292.60 - 543.40 A Sr-90 Bq/L 8.75 8.98 6.29 - 11.67 A Zn-65 Bq/L 324 330 231.00 -429.00 A E-5

TABLE E-3 DOE's MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

TELEDYNE BROWN ENGINEERING, 2005 (PAGE 2 OF 2)

Identification Reported Known Acceptance IMonthlYear Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)

October 2005 MaS14 Soil Cs-134 Bq/L 494 568 397.60 - 738.40 A Cs-137 Bq/L 446 439 307.30 - 570.70 A Co-57 Bq/L 506 524 366.80 - 681.20 A Co-60 Bq/L 289 287 200.90 - 373.10 A Mn-54 Bq/L 460 439 307.30 - 570.70 A K-40 Bq/L 626 604 422.80 - 785.20 A Zn-65 Bq/L 889 823 576.10- 1070 A GrW14 Water Gr-A Bq/L 0.858 0.79 0.21 - 1.38 A Gr-B Bq/L 1.22 1.35 0.85-1.92 A October 2005 RdF14 AP Cs-134 Bq/sample 4.11 3.85 2.70 - 5.01 A Cs-137 Bq/sample 3.16 3.23 2.26 -4.20 A Co-57 Bq/sample 6.14 6.2 4.34 - 8.06 A Co-60 Bq/sample 2.86 2.85 2.00 - 3.71 A Mn-54 Bq/sample 4.54 4.37 3.06- 5.68 A Sr-90 Bq/sample 2.12 2.25 1.58 - 2.93 A Zn-65 Bq/sample 4.28 4.33 3.03 - 5.63 A GrF14 AP Gr-A Bq/sample 0.304 0.482 >0.0 - 0.80 A Gr-B Bq/sample 0.858 0.827 0.55 - 1.22 A RdV13 Vegetation Cs-1 34 Bq/kg 4.35 4.09 2.86 - 5.32 A Cs-137 Bq/kg 5.99 5.4 3.80 - 7.06. A Co-57 Bq/kg 17.0 13.30 9.31 - 17.29 W Co-60 Bq/kg 4.87 4.43 3.10 - 5.76 A Mn-54

• Bq/kg 7.40 6.57 4.60 - 8.54 A Sr-90 I Bq/kg 2.03 2.42 1.69 - 3.15 A Zn-65 Bq/kg 11.8 10.2 7.14- 13.26 A

• Under Investigation. MAPEP reported the result as acceptable although the reported value of 13.4 is higher than the acceptance range upper limit of 12.84.

(1) The Sr-90 in water was a MAPEP false positive tesL The TBE reported result of 0.093 +/- 0.0908 BqA. was the forced Sr-90 activity and uncertainty. as required by MAPEP. The MDC for the sample was 0.145 pCi/L.

(a) Teledyne Brown Engineering reported result.

(b) The MAPEP known value Is equalto 100% of the pararmeterpresent in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

(c) DOEIMAPEP evaluation: A=acceptable, W-acceptable with warning. N=not acceptable.

E-6

~~.

TABLE E-4 ERA12) STATISTICAI

SUMMARY

PROFICIENCY TESTING PROGRAM ENVIRONMENTAL, INC., 2005 (Pag

- (Page I of 2)

- - Concentration (pCi/L)

Lab C:ode Date Analysis Laboratory ERA Control Result' Result' Limits Aco3ptance 02/15/05 Sr-89 28.0 1.2 29.4 20.7 - 38.1 Pass STW 1051 02/15/05 Sr-90 25.1 i 0.7 24.4 15.7 - 33.1 Pass STW 1051 02/15/05 Ba-1 33 52.9 +/- 2.8 53.4 44.2 - 62.6 Pass STW- 1052 02/15/05 Co-60 54.4 i0.4 56.6 47.9 - 65.3 Pass STW.1052 02/15/05 Cs-134 67.7 i 1.8 64.9 56.2 - 73.6 Pass STW..1052 02/15/05 Cs-1 37 39.6 i 1.8 40.2 31.5 - 48.9 Pass STW..1052 Pass 02/15/05 Zn-65 159.7 +/- 3.0 161.0 133.0 - 189.0 STW-1052 02/15/05 Gr. Alpha 55.1 +/- 1.8 67.9 38.5 - 97.3 Pass STW..1053 02/15/05 Gr. Beta 46.8 i 1.3 51.1 38.5 - 97.3 Pass STW*.1053 02/15/05 Ra-226 13.7 i 1.5 14.1 10.4 - 17.8 Pass STW.*1054 02/15/05 Ra-228 .13.3 0.6 13.7 7.8 - 19.6 Pass STW.1 054 02/15/05 Uranium 5.1 i0.2 5.0 0.0 - 10.2 Pass STW-1054 05/17/05 Sr-89 45.1 +/-4.1 41.3 32.6 - 50.0 Pass STW..1055 05/17/05 Sr-90 7.5 +/- 0.9 5.9 0.0 - 14.6 Pass STW-.1055 05/17/05 Ba-1 33 87.1 i2.0 88.4 73.1 - 104.0 Pass STW*-1056 05/17/35 Co-60: 38.4 +/- 0.8 37.0 28.3 - 45.7 Pass STW-1056 05/17/05 Cs-134 75.3 +/- 0.7 78.6 69.9 - 87.3 Pass STW-1056 05/17/05 Cs-1 37 201.0 +/-8.4 194.0 184.0 - 218.0 Pass STW.1056 05/17/05 Zn-65 130.0 +/-6.7 118.0 97.6 - 138.0 Pass STW-1056 05/17/05 Gr. Alpha 42.7 +/- 2.9 37.0 21.0 - 53.0 Pass STW-.1057 05/17/05 Gr. Beta 34.0 0.4 34.2 25.5 - 42.9 Pass STW-1057 05/17/05 1-131 14.7 i0.5 15.5 10.3 - 20.7 Pass STW-1058 05/17/05 Ra-226 6.6 0.1 7.6 5.6 - 9.5 Pass STW-1059 05/17/05 Ra-228 19.3 i 0.7 18.9 10.7 - 27.1 Pass STW-1059 05/17/05 Uranium 9.6 i0.1 10.1 4.9 - 15.3 Pass STW-1059 05/17/05 H-3 24100.0 +/- 109.0 24400.0 20200.0 - 28600.0 Pass STW-1060 08/16/05 Sr-89 29.1 +/- 3.0 28.0 19.3 - 36.7 Pass STW-1067 08/16/05 Sr-90 36.0 +/- 0.6 33.8 25.1 - 42.5 Pass STW.1067 08/16/05 Ba-133 107.0 +/- 1.7 106.0 87.7 - 124.0 Pass STW.1068 08/16/05 Co-60 15.2 +/- 0.2 13.5 4.8 - 22.2 Pass STW.1068 08/16/05 Cs-134 89.1 +/- 0.3 92.1 83.4 - 101.0 Pass STW 1068 08/16/05 Cs-1 37 72.1 +/- 1.0 72.7 64.0 - 81.4 Pass STW.1068 08/16/05 Zn-65 67.4 i 1.4 65.7 54.3 - 77.1 Pass S1W-1068 08/16/05 Gr. Alpha 44.3 +/- 1.5 55.7 31.6 - 79.8 Pass STW-1069 08/16/05 Gr. Beta 58.4 +/- 2.1 61.3 44.0 - 78.6 Pass STW.1069 08/16/05 Ra-226 16.6 +/- 1.5 16.6 12.3 - 20.9 Pass STW.1070 08/16/05 Ra-228 6.2 +/- 0.3 6.2 3.5 - 8.9 Pass STW-1070 08/16/05 Uranium 4.5 +/- 0.1 4.5 0.0 - 9.7 Pass STW-1070 E-7

TABLE E-4 ERA(") STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAM ENVIRONMENTAL, INC., 2005 (Page 1of 2)

C-Concrentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result' Result' Limits Acceptance STW-1072 11/15/05 Sr-89 20.6 +/- 0.4 19.0 10.3 27.7 Pass STW-1072 11/15/05 Sr-90 15.0 +/- 0.3 16.0 7.3 - 24.7 Pass STW-1073 11/15/05 Ba-1 33 31.8 +/- 1.8 31.2 22.5 - 39.9 Pass STW-1073 11/15/05 Co-60 85.0 +/- 1.4 84.1 75.4 - 92.8 Pass STW-1073 11/15/05 Cs-1 34 37.2 +/- 2.1 33.9 25.2 - 42.6 Pass STW-1073 11/15/05 Cs-1 37 27.8 +/- 0.7 28.3 19.6 - 37.0 Pass STW-1073 11/15/05 Zn-65 109.0 +/- 1.0 105.0 86.8 - 123.0 Pass STW-1074 a 11/15/05 Gr. Alpha 41.1 +/- 1.2 23.3 13.2 - 33.4. Fail STW-1074 11/15/05 Gr. Beta 42.7 +/- C.5' 39.1 30.4 - 47.8 Pass STW-1075 11/15/05 1-131 20.5 +/- 0.6 17.4 12.2 - 22.6 Pass STW-1076 11/15/05 Ra-226 7.8 +/- 0.6 8.3 6.2 - 10.5 Pass STW-1076 e 11/15/05 Ra-228 5.5 +/- 0;6 3.5 2.0 - 5.0 Fail STW-1076 11/15/05 Uranium 15.5 5 0.3 16.1 10.9 - 21.3 Pass STW-1077 11/15/05 H-3 12500.0 +/- 238.0 12200.0 10100.0 - 14300.0 Pass Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).

b Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

c Results are presented as the known values, expected laboratory precision (1 sigma, I determination) and control limits as provided by ERA.

dThe original samples were calculated using an Am-241 efficiency. The samples were spiked with Th-232. Samples were recounted and calculated using the Th-232 efficiency. Results of the recount: 27.01 t 2.35 pCilL.

Decay of short-lived radium daughters contributed to a higher counting rate. Delay of counting for 100 minutes provided better results.

The reported result was the average of the first cycle of 100 minutes, the average of the second cycle counts was 4.01 pCi/L E-8

TABI.E E-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEPr ENVIRONMENTAL, INC., 2005 (Page 1 of 3) i Concentration Known Control Lab Code' Date Analysis Laboratory resuIt Activity Limits a Accep:ance 01/01/05 Gr. Alpha 0.45 +/- 0.10 0.53 0.00 - 1.05 Pass STW.-1045 01/01/05 Gr. Beta 1.90 +/- 0.10 1.67 0.84 - 2.51 Pass STW -1045 STW.-1046 01/01/05 Am-241 1.62 +/- 0.12 1.72 1.20 - 2.24 Pass 01/01/05 Co-57 239.40 +/- 1.20 227.00 158.90 - 295.10 Pass STW..1046 01/01/05 Co-60 248.70 +/- 1.00 251.00 175.70 - 326.30 Pass STW-1046 STW-1046 01/01/05 Cs-1 34 115.50 +/- 1.80 127.00 88.90 - 165.10 Pass STW-1046 01/01/05 Cs-1 37 328.50 +/- 1.70 332.00 232.40 - 431.60 Pass 01/01/05 Fe-55 64.90 +/- 7.00 75.90 53.13 - 98.67 Pass STW-1046 STW-1046 01/01t05 H-3 304.0q +/- 9.70 280.00 196.00 - 364.00 Pass STW-1046 01/01/05 Mn-54 334.80 t 1.90 331.00 231.70 - 430.30 Pass 01/01/05 Ni-63 7.10 +/- 1.60 9.00 0.00 - 20.00 Pass STW-1046 STW- 1046 01/01/05 Pu-238 0.01 +/- 0.02 0.02 0.00 - 1.00 Pass 01/01/05 Pu-239/40 2.50 +/- 0.14 2.40 1.68 - 3.12 Pass STW-1046 Sr-90 0.70 +/- 0.80 0.00 0.00 - 5.00 Pass STW-1046 01/01/05 01/01/05 Tc-99 43.20 +/- 1.40 42.90 30.03 - 55.77 Pass STW-1046 STW.1046 01/01/05 U-233/4 3.31 +/- 0.20 3.24 2.27 -4.21 Pass 01/01/05 U-238 3.38 +/- 0.20 3.33 2.33 - 4.33 Pass STW.-1046 01/01/05 Zn-65 538.40 +/- 3.80 496.00 347.20 - 644.80 Pass STW.-1046 01/01/05 Co-57 10.60 +/- 0.20 9.88 6.92 - 12.84 Pass STVE--1047 STVE--1 047 01/01/05 Co-60 3.00 +/- 0.20 3.15 2.21 - 4.10 Pass STVE.-1047 01/01/05 Cs-134 4.80 +/- 0.40 5.00 3.50 - 6.50 *Pass 01/01/05 Cs-137 4.10 +/- 0.30 4.11 2.88 - 5.34 Pass STVE-1047 STVE-1047 01/01/05 Mn-54 5.10 +/- 0.30 5.18 3.63 - 6.73 Pass STVE-1047 01/01/05 Zn-65 6.20 +/- 0.50 6.29 4.40 - 8.18 Pass STSO-1048 01/01/05 Am-241 96.60 +/- 10.00 109.00 76.30 - 141.70 Pass 264.00 +/- 2.00 242.00 169.40 - 314.60 Pass STSO-1048 01/01/05 Co-57 226.50 +/- 2.20 212.00 148.40 - 275.60 Pass STSO-1048 01/01/05 Co-60 760.60 +/- 3.70 759.00 531.30 - 986.70 Pass STSO-1048 01/01/05 Cs-1 34 336.20 +/- 3.60 315.00 220.50 -409.50 Pass STSO-1048 01/01/05 Cs-137 663.70 +/- 18.00 604.00 422.80 - 785.20 Pass STSO-1048 01/01/05 K-40 541.30 +/- 3.90 485.00 339.50 - 630.50 Pass STSO-1048 01/01/05 Mn-54 924.30 +/- 17.20 1220.00 854.00 - 1586.00 Pass STSO-1048 *01/01/05 Ni-63 0.60 +/- 0.80 0.48 0.00 - 1.00 Pass STSO-1048 01/01/05 Pu-238 78.00 +/- 4.80 89.50 62.65 - 116.35 Pass STSO-1048 01/01/05 Pu-239/40 514.60 +/- 18.70 640.00 448.00 - 832.00 Pass STSO-1048 01/01/05 Sr-90 STSO-1048 01/01/05 U-233/4 47.90 +/- 4.00 62.50 43.75 - 81.25 Pass STSO-1048 01/01/05 U-238 226.30 +/- 8.60 249.00 174.30 - 323.70 Pass STSO-1048 01/01/05 Zn-65 851.30 +/- 7.30 810.00 567.00 - 1053.00 Pass STAF'-1050 01/01/05 Gr. Alpha 0.11 +/-0.03 0.23 0.00 - 0.46 Pass STAF'-1050 01/01/05 Gr. Beta 0.38 +/- 0.05 0.30 0.15 - 0.45 Pass E-9

TABLE E-5 DOE-S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEPT ENVIRONM^ENT AL, INC., 2005 (Page 2 of 3)

Concentration D Known Control Lab Code' Date Analvsis Laboratory result Activity Limits a Acceptance STAP-1049 01/01/05 Am-241 0.10

• 0.04 0.10 0.07 - 0.13 Pass STAP-1 049 01/01/05 Co-57 4.76 +/- 0.64 4.92 3.44 - 6.40 Pass STAP-1049 01/01/05 Co-60 2.84 +/- 0.22 3.03 2.12 - 3.94 Pass STAP-1 049 01/01/05 Cs-134 3.54 +/- 0.37 3.51 2.46 -4.56 Pass STAP-1049 01/01/05 Cs-1 37 2.20 +/- 0.27 2.26 1.58 - 2.94 Pass STAP-1 049 01/01/05 Mn-54 3.15 +/- 0.21 3.33 2.33 -4.33. Pass STAP-1049 01/01/05 Pu-238 0.16 +/- 0.04 0.20 0.14 - 0.25 Pass STAP-1 049 01/01/05 Pu-239/40 0.17 +/- 0.02 0.17 0.14 - 0.25 Pass STAP-1049 01/01/05 Sr-90 2.24 +/- 0.34 1.35 0.95 - 1.76 Fail STAP-1 049 01/01/05 U-233/4 0.34 +/- 0.02 0.34 0.24 - 0.44 Pass STAP-1049 01/01/05 U-238 0.35 +/- 0.02. 0.35 0.25 - 0.46 Pass STAP-1 049 01/01/05 Zn-65 3.12 +/- 0.15 3.14 2.20 - 4.08 Pass STW-1061 07/01/05 Am-241 2.21 +/- 0.13 2.23 1.56 - 2.90 Pass STW-1061 07/01/05 Co-57 293.20 +/- 7.30 272.00 190.40 - 353.60 Pass STW-1061 07/01/05 Co-6O 275.70 +/- 1.30 261.00 182.70 - 339.30 Pass STW-1061 07/01/05 Cs-1 34 171.80 +/- 4.00 167.00 116.90 - 217.10 Pass STW-1061 07/01/05 Cs-137 342.10 +/- 2.20 333.00 233.10 - 432.90 Pass STW-1061 07/01/05 Fe-55 167.80 +/- 9.30 196.00 137.20 - 254.80 Pass STW-1061 07/01/05 H-3 514.20 +/- 12.60 527.00 .368.90 - 685.10 Pass STW-1061 07/01/05 Mn-54 437.00 +/- 2.50 418.00 292.60 - 543.40 Pass STW-1061 07/01/05 Ni-63 105.10 +/- 3.60 100.00 70.00 - 130.00 Pass STW-1061 07/01/05 Pu-238 1.64 +/- 0.12 1.91 1.34 - 2.48 Pass STW-1061 07/01/05 Pu-239/40 2.32 +/- 0.13 2.75 1.93 - 3.58 Pass STW-1 061 07/01/05 Sr-90 9.20 +/- 1.30 8.98 6.29 - 11.67 Pass STW-1061 07/01/05 Tc-99 72.30 +/- 2.30 66.50 46.55 - 86.45 Pass STW-1061 07/01/05 U-233/4 4.11 +/- 0.18 4.10 2.87 - 5.33 Pass STW-1061 07/01/05 U-238 4.14 +/- 0.18 4.26 2.98 - 5.54 Pass STW-1061 07/01/05 Zn-65 364.60 +/- 4.90 330.00 231.00 - 429.00 Pass STW-1062 07/01/05 Gr. Alpha 0.57 +/- 0.05 0.79 0.21 - 1.38 Pass STW-1062 07/01/05 Gr. Beta 1.36 +/- 0.05 1.35 0.85 - 1.92 Pass STSO-1063' 07/01/05 Am-241 48.40 +/- 3.90 81.10 56.77 - 105.43 Fail STSO-1063 07/01/05 Co-57 608.30 +/- 2.80 524.00 366.80 - 681.20 Pass STSO-1063 07/01/05 Co-60 322.70 +/- 2.40 287.00 200.90 - 373.10 Pass STSO-1063 07/01/05 Cs-134 632.10 +/- 5.20 568.00 397.60 - 738.40 Pass STSO-1063 07/01/05 Cs-137 512.40 +/- 4.20 439.00 307.30 - 570.70 Pass STSO-1063 07/01/05 K-40 720.50 +/- 19.00 604.00 422.80 - 785.20 Pass STSO-1063 07/01/05 Mn-54 516.80 +/- 5.10 439.00 307.30 - 570.70 Pass STSO-1063 07/01/05 Ni-63 366.50 +/- 13.30 445.00 311.50 - 578.50 Pass STSO-1063 07/01/05 Pu-238 68.80 +/- 15.00 60.80 42.56 -79.04 Pass STSO-1063 07/01/05 Pu-239/40 0.00 +/- 0.00 0.00 0.00 - 0.00 STSO-1063 07/01/05 Sr-90 602.90 +/- 17.20 757.00 529.90 - 984.10 Pass STSO-1063 07/01/05 U-233/4 61.50 +/- 1.00 52.50 36.75 - 68.25 Pass STSO-1063 07/01/05 U-238 164.50 +/- 16.70 168.00 117.60 - 218.40 Pass STSO-1063 07/01/05 Zn-65 874.70 +/- 8.40 823.00 576.10 - 1070.00 Pass E-10

.'TA51E E-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEPI' ENVIRONMENTAP. INC., 2005 (Page 3 of 3)

Concentrationb Known Control Lab Code' Date Analysis Laborato result Activity Limits Acceptance STVE.-1064 07/01105 Am-241 0.18 +/- 0.03 0.23 0.16,- 0.30 Pass STVE-1064 07/01/05 Co-57 15.90 +/- 0.20 13.30 9.31 - 17.29 Pass STVE-1064 07/01/05 Co-60 4.80 +/- 0.10 4.43 3.10 - 5.76 Pass STVE-1064 07t01/05 Cs-134 4.60 +/- 0.20 4.09 2.86 - 5.32 Pass STVE-1064 07/01/05 Cs-137 5.90 +/- 0.30 5.43 3.80 - 7.06 PaIss STVE.-10G4 07/01/05 Mn-54 7.20 +/- 0.20 6.57 4.60 - 8.54 Pass STVE--1 064 07/01/05 Pu-238 0.04 +/- 0.02 0.00 0.00 - 1.00 Pass STVE-1064 07/01/05 Pu-239140 0.13 +/- 0.02 0.16 0.11 -0.21 Pass STVE-1064 07/01/05 Sr-90 2.80 +/- 0.30 2.42 1.69 - 3.15 Pass STVE.-1064 07/01/05 U-233/4 0.28 +/- 0.03 0.33 0.23 -0.43 Pass STVE.-1064 07/01/05 U-238 0.33 +/- 0.04 0.35 0.24 -0.45 Pass STVE-1064 07/01/05 Zn-65 11.00 +/- 0.50 10.20 7.14 - 13.26 Pass STAP-1065 07/01/05 Gr. Alpha 0.30 +/- 0.04 0.48 0.00 - 0.80 Pass STAP-1065 07/01/05 Gr. Beta 0.97 +/- 0.06 . 0.83 0.55 -1.22 Pass STAP-1066 07/01/05 Am-241 0.14 +/-0.03 0.16 0.11 -0.21 Pass STAP-1066 07/01/05 Co-57 5.81 +/- 0.17 6.20 4.34 - 8.06 Pass STA13-1066 07/01/05 Co-60 2.79 +/- 0.14 2.85 2.00 - 3.71 PEISS STAP-1066 07/01/05 Cs-134 3.67 +/-0.12 3.85 2.70 -5.01 PEass STAI'-1066 07/01/05 Cs-137 2.93 +/-0.23 3.23 2.26 -4.20 Pass STAI'-1066 07/01/05 Mn-54 4.11 +/- 0.26 4.37 3.06 -5.68 Pass STAP-1066. 07/01/05 Pu-238 0.11 +/- 0.02 0.10 0.07 -0.13 Pass STAI'-1 066 07/01/05 Pu-239/40 0.10 +/- 0.01 0.09 0.06 - 0.12 Pass STAP-1066 07/01/05 Sr-90 2.25 i 0.29 2.25 1.58 - 2.93 Pass STAI'-1066 07/01/05 U-23314 0.28 +/- 0.02 0.27 0.19 - 0.35 Pass STAI'-1 066 07/01/05 U-238 0.28 +/- 0.02 0.28 0.20 - 0.37 Pass STAP-1066. 07/01/05 Zn-65 4.11 +/-0.26 4.33 3.06 -5.68 Pass Results.obtained by Environmental, Inc., Midwest Laboratory as a participant in the Department of Energy's Mixed Analyte Performance Evaluation Program, Idaho Operations office, Idaho Falls, Idaho b Results are reported in units of Bq/lkg (soil), Bq/L (water) or Bq/total sample (filters, vegetation) as requested by the Derartment of Energy.

c Laboratory codes as follows: STW (water), STAP (air filter), STSO (soil), STVE (vegetation).

d MAPEP results are presented as the known values and expected laboratory precision (1sigma, I determination) and control limits as defined by the MAPEP.

• The strontium carbonate precipitates were redissolved and processed. The average of the three analyses was 1.34 pCi/L.

altiough the recovery was only 30%. The result of a new analysis was 1.56 pCitL.

f Incorrect sample weight used in calculation. Result of recalculation: 97.0 +/- 7.8 Bq/kg.

E-1 1

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