Text

2001 Annual Radiological Environmental Operating Report
	ML021330498
Person / Time
Site:	Limerick
Issue date:	04/25/2002
From:	Levis W; Exelon Nuclear
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	Download: ML021330498 (101)
	v • d • e

Exelon.

Exelon Nuclear www.exeloncorp.corn Nuclear Limerick Generating Station P.O. Box 2300 Sanatoga, PA 19464 T.S. 6.9.1.7 April 25, 2002 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Limerick Generating Station, Unit 1 and 2 Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353

Subject:

2001 Annual Radiological Environmental Operating Report Gentlemen:

In accordance with the requirements of Section 3.5 of the Limerick Generating Station (LGS), Units 1 and 2 Offsite Dose Calculation Manual (ODCM), this letter submits the 2001 Annual Radiological Environmental Operating Report No. 18. This report provides the 2001 results for the Radiological Environmental Monitoring Program (REMP) as called for in the Offsite Dose Calculation Manual.

If you have any questions or require additional information, please do not hesitate to contact us.

Sincerely, William Levis Vice President-LGS Attachment cc: H. J. Miller, Administrator, Region I, USNRC A. L. Burritt, LGS USNRC Senior Resident Inspector B. C. Jang, Inspector Region I, USNRC C. Gratton, Senior Project Manager, USNRC

Docket No 50 352 50 353 LIMERICK GENERATING STATION UNITS I and 2 Annual Radiological Environmental Operating Report Report No 18 1 January Through 31 December 2001 Prepared By Nuclear Generation Support 200 Exelon Way Kennett Square PA 19348 May 2002

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 2001 through 31 December 2001. During that time period, 1,282 analyses were performed on 977 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 (soluble and insoluble fractions). 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. No fission or activation products were detected in fish. Cesium-1 37 levels detected in sediment were consistent with levels detected in previous years and were due to previous plant releases and fallout from nuclear weapons testing. No other LGS-produced fission or activation products were detected in sediment.

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 activity.

Cow milk samples were analyzed for concentrations of I-131 and gamma emitting nuclides. All 1-131 results were below the minimum detectable activity.

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.

Review of the gamma spectroscopy results from the surface water sampler (25S1) located at the Limerick's intake and downstream of the 10CFR20.2002 permitted storage area indicated no offsite radionuclide transport was evident.

Table Of Contents I. Summary and Conclusions ......................- ....................................................... 1 7

I1. Introduction ......................................................................

7 A. Objectives of the REMP ...........................................................................

7 B. Implementation of the Objectives .........................................................

8 II1. Program Description ...................................................................................

.. 8 A . S am ple C ollection .............................................................................................

10 B. Sample Analysis .............................................

C . D ata Interpretation .......................................................................................... 10 12 D . Program Exceptions .........................................................................................

.......................................... 13 E. Program Changes

.................. 13 IV. Results and Discussion ......... ...... . .... .. . ..............

A. Aquatic Environment ...... ..-..... ............ .......... ....................... 13

1. Surface Water ........................................ 13

2. Drinking Water ............................................... 13 14

3. F ish .........................................................................................

14

4. Sedim ent ...............................................................................

B. Atmospheric Environment ............ .......................................... 15

1. Airborne ........................... . ........................ 15

a. Air Particulates ...................................... ............... . 15 16

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

...................... 16

2. Terrestrial ......................................

16

a. Milk ..........................................

17 C. Ambient Gamma Radiation ................................................................

17 D. 10 CFR 20.2002 Permit Storage Area ..................................................

E. Land Use Survey ........................................... 17

.18 V. References ...........................................................................................

II III

Appendices Appendix A Radiological Environmental Monitoring Report Summary Tahils Table A-1 Radiological Environmental Monitoring Report Summary for the Limerick Generating Station, 2001 Appendix B Location Designation, Distance & Direction And Sample Collection &

Analytical Methodologies Tabps, Table B-I: 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, 2001 Table B-3: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Limerick Generating Station, 2001 Figurees Figure B-i: Environmental Sampling Locations Within One Mile of the Limerick Generating Station, 2001 Figure B-2: Environmental'Sampling Locations Between One and Five Miles from the Limerick Generating* Station, 200i Figure B-3: Environmental Sampling Locations Greater Than: Five Miles from the Limerick Generating Station, 2001 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, 2001.

Table C-1.2 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-11. 1 Concentrations of Gross Beta Insoluble in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-II.2 Concentrations of Gross Beta Soluble in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-11.3 3 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-il.' 4 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-Ill. 1 Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-IV .1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-V. 1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-V. 2 Monthly, and Yearly Mean Values of Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of Limerick Generating "Station,2001.

Table C-V. 3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-VI1.1 C6ncentrations of 1-131 in Air Iodine Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-ViH1.1 Concentrations of 1-131 in Milk Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-V 11.2 Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table C-V 1.iii Quarterly TLD Results for Limerick Generating Station, 2001.

Table C-V 111.2 Mean Quarterly TLD Results for the Site Boundary, Middle and Control Locations for Limerick Generating Station, 2001.

Table C-V 111.3 Summary of the Ambient Dosimetry Program for Limerick Generating Station, 2001.

Table C-I)(.1 Summary of Collection Dates for Samples Collected in the Vicinity of

'Limerick Generating Station, 2001.

Figures Mean Monthly Insoluble Gross Beta Concentrations in Drinking Water Figure C-1 Samples Collected in the.Vicinity of, LGS, 1982 - 2001.

Figure C-2 Mean Monthly Soluble Gross -Beta Concentrations in Drinking Water Samples Collected in the Vicinity of LGS, 1982 - 2001.

Figure C-3 Mean Annual Cs-137 Concentrations in Fish Samples Collected in the Vicinity of LGS, 1982 - 2001.

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Figure C-4 Concentrations of Cs-1 37 in Sediment Samples Collected in the Vicinity of LGS, 1982 - 2001.

Figure C-5 Mean Monthly Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of LGS, 1982 - 2001.

Figure C-6 Mean Weekly Gross Beta Concentrations in Air Particulate Samples Collected-in the Vicinity of LGS, 2001.

Figure C-7 Mean Quarterly Ambient Gamma Radiation Levels in the Vicinity of LGS, 1985 - 2001.

Appendix D Data Tables and Figures - QC Laboratory Tablems Concentrations of Gross Beta Insoluble in Drinking Water Samples Table D-1.1 Collected in the Vicinity Of Limerick Generating Station, 2001.

Table D-1.2 Concentration of Gross Beta Soluble in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table D-1.3 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table D-11.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Limerick'Generating Station, 2001.

Table D-11.2 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Table D-111,1 Concentrations of 1-131 by Chemical Separation and Gamma Emitters in Milk Sampled Collected in the Vicinity of Limerick Generating StatiOn;"2001.

Table D-IV.1 Summary of Collection for Samples Collected in the Vicinity of Limerick Generating Station, 2001.

Figures Figure D-1 Comparison of Monthly Insoluble, Gross Beta Concentrations in Drinking Water Samples Split Between Environmental and TBE, 2001.

Figure D-2 Comparison of Monthly Soluble Gross Beta Concentrations in Drinking Water-Samples Split. Between Environmental and TBE, 2001.

Figure 0-3 Comparison of Weekly Gross Beta Concentrations-in Air Particulate Samples Collected from LGS Collocated Locations 11 S1 and 11 S2, 2001. f Appendix E Inter-Laboratory Comparison Program Tables Table E-1 DOE EML Cross-Check Program Results for Environmental, Inc., 2001 Table E-2 ERA Statistical Summary Proficiency Testing Program for Environmental,, Inc., 2001 II

II. Introduction The Limerick Generating Station (LGS), consisting of two 3458 MWt boiling water reactors owned and operated by Exelon Corporation (formally PECO Energy), is located adjacent to the Schuylkill River in Montgomery County, Pennsylvania. Unit No. 1 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 Report 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 Environmental Inc.

(Midwest Labs), ICN Pharmaceutical and Teledyne Brown Engineering (TBE) on samples collected during the period 1 January 2001 through 31 December 2001.

On July 6, 1996 a 10CFR20.2002 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 while in storage will decay to background. 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 (RMC).

This section describes the general collection methods used by RMC to obtain environmental samples for the LGS REMP in 2001. Sample locations and descriptions can be found in Tables B-1 and B-2, and Figures B-I through B-3, Appendix B. The collection procedures used by RMC are listed in Table B-3.

A.atEnvironment The aquatic envircnment.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 (1 3B1 and 24S1) and four drinking water locations (15F4, 15F7, 16C2, and 28F3). One additional surface water location (10F2) was sampled only during the months when water was taken from the Perkiomen Creek for cooling. Control locations were 1 0F2, 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 and 16C4 and 33A2 (control).

Atmospheric Fn-,i'rinment 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

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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 (9G1, 10F4, 18C1, 19B1, and 211B1) from April through November, and monthly from December through March. Four additional locations (36E1, 22C1, 23F1 and 25C1) were sampled quarterly. Locations 36E1, 9G1 and 23F1 were controls. All samples were collected in new unused two gallon plastic bottles from the bulk tank at each location, refrigerated, and shipped promptly to the laboratory. No preservative was added.

Ambient Gamma Radiation Direct radiation measurements -were made using Panasonic 814 calcium sulfate (CaSO 4) thermoluminescent dosimeters (TLD).* The TLD locations were placed on and around the LGS site as follows:.

A site boundary ring consisting of sixteen locations (36S2, 3S1, 5S1, 7S1, 10S3, 11S1, 13S2, 14S1, 18S2, 21S2, 23.S2,._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 sixteen locations (36D1, 2E1, 4E1, 7E1, I1OE1, 10F3, 13E1, 16F1, 19D1, 20F1, 24D1,:25D1, 28D2, 29E1, 31,D2, and-34E1)* extendihg to approximately 5 miles from the site designed. to measure possible exposures to close-in population.

Thebalance of eight locations (51-1,-6C1, 9C1., 1301; 15D1, 17B1, 20D1 and 31 D1):representing control and-special interests areas such as population centers; schools, etc.z-,:.

The. specific TLD locations,were determined. bythe following criteria:

1. The presence of relatively dense population;

2. Site meteorological data taking.intoaccount.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 sign ifi~cant;

3. On hills free from local obstructions and withinsight of the vents (where practical)t-I

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

Two TLDs -each comprised of three CaS04 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 ICN for analysis.

I OCFR20 2002 Permit Storaae Area

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

B. Sample Analysis This section describes the general analytical methodologies used by Midwest:Labs and TBE to.analyze.the environmental samples for radioactivity for the LGS REMP in 2001. The analytical procedures used by the laboratories were 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,ý 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 I'I

factors were important in the interpretation of the data:

Lower Iimit of Detection and Minimum Detectable Activity 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 capabilities for environmental sample analysis.

The minimum detectable activity (MDA) is defined above with the exception that the measurement is an after the fact estimate of the presence of activity.

2. Net Activity alculatio nn Re of sults 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 effecting a negative number. An MDA was reported in all cases where positive activity was not detected.

Gamma spectroscopy results for each type of sample were grouped as follows:

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

For fish-eight nuclides, K-40, Mn-54, Co-58, Fe-59, Co-60, Zn 65, Cs-1 34, and Cs-1 37 were reported.

For sediment six nuclides, K-40, Mn-54, Co-58, Co-60, Cs-1 34, and Cs-137 were reported.

For air. particulate six nuclides, Be-7, Mn-54, Co-58, Co-60, Cs-I 34, and Cs-I 37 were reported..

For milk five nuclides, K-.40, Cs-134, Cs-137, Ba-140, and La 140 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 2001 the LGS REMP had a sample recovery rate in excess of 99%.

Exceptions are listed below:

1. Surface water composite samplers at location 24S1 (LGS Intake) and 133B1 (Vincent Dam) were out of service during the following periods:

01/02/2001 - 01/04/2001 - freezing (24S1) 01/02/2001 - 01/06/2001 - freezing (1 3B1)

Daily grab samples were taken.

2. Surface water composite sampler at location 133B1 (Vincent Dam) was out of service during the following periods:

06/18/2001 - 07/02/2001 Storm damage Weekly grab samples were taken.

3. Surface water composite sampler at location 10F2 (Perkiomen) was out of service during the following periods:

05/29/2001 - 06/08/2001 Pump found turned off 06/25/2001 - 07/05/2001 Pump failure Weekly grab samples were taken.

4. Drinking water composite- sampler at location 16C2 (Citizens) was out of service during the following periods:

01/22/2001 - 01/29/2001 Pump out of service 06108/2001 - 06/2612001 Pipe supplying water blocked by debris 07/23/2001 - 07/30/2001 Blown fuse Weekly grab samples were taken as necessary.

5. Drinking water.composite sampler at location 15F7 (Phoenixville) out of service during the following periods:

01/22/2001 - 01/2912001 Pump out of service Weekly grab samples were taken.

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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 No changes were made to the REMP in 2001.

IV. Results and Discussion A. Aquatic Environment

1. Surface Water Samples were taken from a continuous sampler at three locations (10F2, 13B1, and 24S1) on a monthly schedule. Of these locations only 133B1 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 MDA calculated was <160 pCi/I.

Gammma-Spetrometry.. . -:, .

Samples from all, locations Were analyzed for gamma emitting nuclides,(Table C-t2i Appendix C): All nuclides were less than the MDA.

2. Drinking-Water .. .

Monthly. samples were. collected from continuous water samplers at four locations (15F4, 15F77 16C2, and 28F3). Three locations (15F4, 15F7,,and 16C2) could be affected by Limerick's effluent releases. The following analyses were performed:

GrossRpBt Samples from all locations were analyzed for concentrations of gross beta in the insoluble and soluble fractions (Tables C-1I. 1 and C-I1.2, Appendix C). The values ranged from <0.3 to <1.9 pCill for the insoluble fraction and from <1.5 to 6.5 pCi/I for the soluble fraction. Concentrations detected in both fractions were consistent with those detected in previous years (Figures C-1 and C-2, Appendix C).

Tritium Monthly samples from all locations were composited quarterly and analyzed for tritium activity (Table C-11.3, Appendix C). No tritium activity was detected. The highest MDA was calculated at <160 pCi/I.

C3,mm2 Spectrnmetry Samples from all locations were analyzed for gamma emitting nuclides (Table C-11.4, Appendix C). All nuclides were less than the MDA.

3. Fish Fish samples comprised of catfishibullhead (bottom feeder) and sunfish (predator) were collected at two locations (16C5 and 29C1) semiannually. Location 16C5 could be affected by Limerick's effluent reieases. The following analysis was performed:

Gamma Spectrometry The edible portion of fish samples from both locations was analyzed for gamma emitting nuclides (Table C-I11.1, Appendix C).

Naturally occurring K-40 was found at all stations and ranged from 2,201 to 2,966 pCi/kg wet and was consistent with levels detected in previous years. No fission or activation products were found.

Historical levels of Cs-1 37 are shown in Figure C-3, Appendix C.

4. Sediment Aquatic sediment gampres were collected at three locations (16B2, 16C4 and 33A2) semiannually. Of these locations two 16B2 and I6C4 located downstream, could be affected by Limerick's effluent re!eases. The following analysis was performed:

14-

Gamma Spactrom.try Sediment samples from all three locations-were analyzed for gamma emitting nuclides, (Table C-IV.1, Appendix C). Nuclides detected were naturally occurring K-40, and the fission product Cs-1 37.

Potassium-40 was found at alt stations and ranged from 11,755 to 15,790 pCi/kg dry. Concentrations of the fission product Cs-137 were found in sediment samples in all samples. Location 16C4 had the highest average concentration of 136 pCi/kg dry. The activity detected was consistent with those detected in the pre operational years (FigureC-4, Appendix C). No other Limerick fission or activation products were found.

B. Atmospheric Environment

1. 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 ll.represents the location at an intermediate distance fromthe L.GSsite (13C1), and.Group III represents the

.,control location at apremote distance from LGS (22G 1). The followinganalyses were, performed::.

£ros B t..ta Veekly 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.

Commparisor.of results among the. three groups aid in idetermining the effects, if:any, resulting from the operation of LGS. The results from the On-Site locations (Group I) ranged from 6 to 43 E-3 pCi/min with a mean of 21 E-3 pCi/m 3. The results from the Intermediate Distance location

.(Group 11) -anged fro 74o 43 E-t3.-pCiim 3 with a mean of 21 E-".3 pCi/. The results from the Distant locations (Group Il) ranged from :8 to 37* -,, pC-i/m3 With a mean of 21 E-3 pCi/m .:.Qomparison of the 2001:.air. particulate data with previous years data indicate no effects from the operation of LGS (Figure C-5, Appendix C). In addition a comparison of the weekly mean values for 2001 indicate no notable differences among the three groups (Figure C-6, Appendix C).

Gamma Spectrornetry 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 45 to 83 E-3 pCi/m 3 . All other nuclides were less than the MDA.

b. Airborne Iodine Continuous air samples were collected from five (10S3, 11 S1, 14Sl, 13C1, and 22G1) locations and analyzed weekly for 1-131 (Table C-VI.1, Appendix C). All results were less than the MDA.

2. Terrestrial

a. Milk Samples were collected from five locations (9G1, 10F4, 18CI, 19B1 and. 21B1) biweekly April through November and monthly December through March. Samples from four additional locations (22C1, 23F1, 25C1 and 36E1) were taken quarterly. The following analyses were performed:

1*ndi=.Ml_31 Milk samples from all locations were analyzed for concentrations of 1--131 (Table C-VII.1, Appendix C). All results were less than the MDA.

Gamma Spectrometry Each. milk sample from locations 18C1, 19B1, 211B1 and 22F1 were analyzed for Concentrations of gamma emitting nUclides (Table C-V'L1.2, Appendix C).

Naturally occurring K-40 activity was found in all samples and ranged from 1,235 to 1,681 pCi/I. All other nuclides were less than the MDA.

C. Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing Panasonic 814 (CaSO 4) 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 mrad/standard month, with a range of 4.9 to 11,.8 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 5H1 were consistently higher. The historical ambient gamma radiation data from Location 5H1 was plotted along with similar data from the Site, Intermediate Distance and Outer Ring Locations (Figure C-7, 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 25S1 were used to determine if radioactivity from the 2002 permit area has made it to the Schuylkill River.. The data obtained from the gamma analysis program did not detect any radioactivity from the 2002 permit area.

E. Land Use Survey A Land Use Survey conducted during the May to September 2001 growing season .around.the Limerick Generating Station (LGS) was performed by Normandeau Associates, RMC Environmental Services Division for Exelon' Nuclear to comply with Sections 2.15 and 3.4.2 of the Plant'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 1/2A degree sectors around the site. 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 Feet from the LGS Reactor Buildings Sector Residence Garden Milk Farm 1N 3109 9407 24821 2 NNE 2706 2706 3NE 3469 8333 4 ENE 3231 13512 5E 2864 11979 6 ESE 3434 8008 7 SE 5108 7296 8 SSE 5403 6134 9S 4347 6103 11952 1OSSW 5063 5345 926 11 SW 3251 4161 15440 12 WSW 3799 72100 14224 13 W 3627 11125 14654 14 WNW 3932 4390 15 NW 3619 8196 16 NNW 5051 12754 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.

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.

II I

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

ANNUAL

SUMMARY

FOR TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM THE LIMERICK GENERATING STATION, 2001 DOCKET NUMBER: 50-352 & 50-353 NAME OF FACILITY: LIMERICK GENERATING STATION REPORTING PERIOD: 2001 LOCATION OF FACILITY: MONTGOMERY COUNTY, PA INDICATOR OL LOCATION WITH HIGHEST ANNUAL MEAN CONTR LOCATIONS LOCATION MEAN MEAN MEAN STATION # NUMBER OF NAME NONROUTINE MEDIUM OR TYPE OF NUMBER OF REQUIRED LOWER LIMIT (F) (F) (F) REPORTED ANALYSES ANALYSES RANGE RANGE DISTANCE AND DIRECTION PATHWAY SAMPLED PERFORMED OF DETECTION RANGE MEASUREMENTS (UNIT OF PERFORMED (LLD)

MEASUREMENT) 24S1 (CONTROL)

<123 <118 <123 24S1 INTAKE LGS (CONTROL)

TRITIUM 11 2000 (0/4) (0/7) (0/4)

SURFACE WATER 0.20 MILES SW OF SITE

(<106/<160) (<106/<160) (<106/<160)

(PCI/LITER) 33 <2.4 10F2 (CONTROL)

GAMMA <2.4 <2.3 0 MN-54 15 (0/21) (0/9) PERKIOMEN PUMPING STATION (0/12) 7.30 MILES E OF SITE

(<0.9/<3.5) (<1.1/<3.5)

(<0.9/<3.4)

<2.1 <2.4 24S1 (CONTROL) 0 15 <2.2 LGS INTAKE CO-58 (0/2 1) (0/12)

(0/12) 0.20 MILES SW OF SITE

(<1.1/<4.6) (<0.8/<3.5) (<1.1/<3.5)

<2.0 <2.1 10F2 (CONTROL) 0 15 <2.0 PERKIOMEN PUMPING STATION CO-60 (0/2 1) (0/9).

(0/12) 7.30 MILES E OF SITE

(<1/<4.1) (<1.3/<3.4)

(<1.1/<2.5)

<4.8 1381 (INDICATOR) 30 <4.8 <4.3 0 (0/21) (0/12 VINCENT DAM FE-59 (0/12)

(<1.4/<8.6) (2.9/7.6) 1.75 MILES SE OF SITE

(<2.9/<7.6)

<3.7 1381 (INDICATOR)

<3.7 <3.2 0 30 (0/12 VINCENT DAM ZN-65 (0/12) (0/21)

(<2/<5.9) 1.75 MILES SE OF SITE

(<2/<5.9) (<1.5/<5.7)

<5.4 10F2 (CONTROL) 0

<4.1 <5.3 30 (0/9) PERKIOMEN PUMPING STATION (0/12) (0/2 1)

(<2.9/<7.5) 7.30 MILES E OF SITE

(<2.4/<5.3) (<2.7/<7.5)

<2.9 13B1 (INDICATOR) 0

<2.9 <2.6 15 (0/12) VINCENT DAM NB-95 (0/12) (0/21)

(<1.3/<6.4) 1.75 MILES SE OF SITE

(<1.3/<6.4) (<1.5/<4.7)

<2.7 <2.8 0 15 <2.7 24S1 LGS INTAKE (CONTROL)

CS-134 (0/21) (0/12 (0/12) 0.20 MILES SW OF SITE

(.0.9!<4.3) (<1.3/<4.3)

(<1.3/<4.8)

IS INDICATED IN PARENTHESES (F).

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS A-1

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2001 NAMF O"F IFAC.II ITV, I IM br/I' hP ,.e"l:n *"-~,.-. -* ..

NOAT S........

OF , OFFA-

.

L.*vti IITYMONTGOMERY IOUNTP In'%=vl'*.**C Jr'l-F% UII1M* Z I/- I IUN DOCKET NUMBER: 50-352 & 50-353 LOCATION OF FACILITY: MONTGOMERY COUNTY, PA REPORTING PERIOD: 2001 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN MEDIUM OR LOCATIONS LOCATION TYPE OF NUMBER OF REQUIRED PATHWAY SAMPLED MEAN MEAN MEAN ANALYSES ANALYSES LOWER LIMIT STATION# NUMBER OF (UNIT OF (F) (F) (F)

PERFORMED PERFORMED OF DETECTION NAME NONROUTINE MEASUREMENT) RANGE RANGE RANGE (LLD) DISTANCE AND DIRECTION REPORTED MEASUREMENTS REPORTED MEASUREMENTS CS-1 37 18 <2.6 <2.3 <2.6 13B1 (INDICATOR)

(0/12) (0/21) (0/12) VINCENT DAM 0

(<1.11<4) (<0.9/<4.2) (<1.11<4) 1.75 MILES SE OF SITE BA- 140 60 <15 <16 <16 2481 (CONTROL)

(0/12) (0/21) (0/12) LGS INTAKE

(<8.9/<29) (<6.8/<29) (<6.8/<29) 0.20 MILES SW OF SITE LA-140 15 <3.4 <3.5 <3.7 10F2 (CONTROL)

(0/12) (0/21) (0/9) PERKIOMEN P'UMPING STATION 0

(<2/<4.7) (<1.3/<7) (<1.3/<7) 7.30 MILES E OF SITE DRINKING WATER GROSS BETA SOLUBLE 48 4 3.7 3.2 (PCI/LITER) 4 15F4 (INDICATOR)

(32/36) (10/12) (11/12) PHILA. SUB: WATER CO. 0

(<1.5/6.5) (<1.6/4.9) (<1.5/5.6) 8.62 MIIES SE OF SiTE GROSS BETA INSOLUBLE 48 <1.5 <1.5 <1.6 16C2 (INDICATOR)

(0/36) (0/12) (0/12) CITIZENS HOME WATER CO.

(<0.41<1.9) (<0.31<1.9) (<0.9/<1.9) 2.66 MILES SSE OF SITE TRITIUM 16 2000 <123 <111 <123 16C2 (INDICATOR)

(0/4) (0/4) (0/4) CITIZENS HOME WATER CO. 0

(<106/<160) (<1061<118) (<106/<160) 2.66 MILES SSE OF SITE GAMMA 48 MN-54 is <2.4 <2.6 - "<2.6,, 28F3 (CONTROL)

S" (0/36) (0/12) .(0/12)

POTTSTOWN WATER AUTHORITY 0

(<1.2/<3.8) (<1.2/<4.4) -(<1.2/<4.4) 5.84 MILES WNW OF SITE CO-58 15 <2.4 2.3 2.6 15F4 (INDICATOR)

* (0/36) (0/12)

(<1.11<5) (1.2/3.2).

",(0/12) PHILA. SUB. WATER CO. 0 (1.1/5) 8.62 MILES SE OF SITE CO-60 15 <2.2 <2.5 <2.5 28F3 (CONTROL)

(0/36) (0/12) (0/12) POTTSTOWN WATER AUTHORITY 0

(-1/<4.7) (<1/<4.7) 5.84 MILES WNW OF SITE FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F).

A-2

SUMMARY

FOR TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL THE LIMERICK GENERATING STATION, 2001 DOCKET NUMBER: 50-352 & 50-353 NAME OF FACILITY: LIMERICK GENERATING STATION 2001 LOCATION OF FACILITY: MONTGOMERY COUNTY, PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEAN MEAN STATION # NUMBER OF TYPE OF NUMBER OF REQUIRED MEAN MEDIUM OR (F) (F) NAME NONROUTINE ANALYSES ANALYSES LOWER LIMIT (F)

PATHWAY SAMPLED RANGE RANGE DISTANCE AND DIRECTION REPORTED PERFORMED PERFORMED OF DETECTION RANGE MEASUREMENTS (UNIT OF MEASU REMENT) (LLD)

<4.8 15F4 (INDICATOR) 0 30 <4.3 <4.6 FE-59 (0/12) PHILA. SUB. WATER CO.

(0/36) (0/12)

(<1.9/<7.7) (<3.2/<6) (<3.1/<6.8) 8.62 MILES SE OF SITE

<4.3 15F4 (INDICATOR) 0 30 <3.7 <3.9 ZN-65 (0/12) PHILA. SUB. WATER CO.

(0/36) (0/12)

(<1.6/<6.4) (<1.8/<6.7) (<2.4/<6.4) 8.62 MILES SE OF SITE

<5.4 15F7 (INDICATOR) 0 30 <4.9 <5.1 ZR-95 (0/12) PHOENIXVILLE WATER WORKS (0/36) (0/12)

(<1.3/<8) (<2.6/<7.7) (<4.1/<8) 6.33 MILES SSE OF SITE 15F4 (INDICATOR) 0 15 <2.9 <2.7 <3.1 NB-95 (0/12) PHILA. SUB. WATER CO.

(0/36) (0/12)

(<1/<4.6) (<1.7/<4.7) (<1.8/<4.6) 8.62 MILES SE OF SITE

<2.8 15F7 (INDICATOR) 0 15 <27 <2.8 CS-134 (0/12) (0/12) PHOENIXVILLE WATER WORKS (0/36)

(<1/<4) (<1.4/<4.9) (<2/<4) 6.33 MILES SSE OF SITE 15F7 (INDICATOR) 0 18 <2.6 <2.5 <2.9 CS-137 (0/12) (0/12) PHOENIXVILLE WATER WORKS (0/36)

(<1/<4.5) (<0.8/<4.1) (<1.5/<4.5) 6.33 MILES SSE OF SITE 15F4 (INDICATOR) 0 60 <16 <14 <19 BA-140 (0/36) (0/12) (0/12) PHILA. SUB. WATER CO.

(<3.6/<29) (<8.8/<19) (<10/<29) 8.62 MILES SE OF SITE 16C2 (INDICATOR) 0 15 <3.4 <3.3 <3.9 LA-140 (0/3e) (0/12) (01" 2) CITIZENS HOME WATER CO.

(<0.9/<6.8) (<1.8/<5.3) (<0.9/<3.s) 2,66 MILES SSE OF SITE GAMMA 4 (INDICATOR) 0 BOTTOM FEEDER (FISH) N/A 2902 2773 2902 16C5 (PCI/KG WET) K-40 (2/2) (2/2) VINCENT POOL (2/2)

(2837/2966) (2733/2813) (2837/2966) DOWNSTREAM OF DISCHARGE IS INDICATED IN PARENTHESES (F).

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS A-3

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2001 NAME OF FACILITY: LIMERICK GENERATING STATION DOCKET NUMBER:

LOCATION OF FACILITY: MONTGOMERY COUNTY, PA 50-352 & 50-353 REPORTING PERIOD: 2001 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN MEDIUM OR LOCATIONS LOCATION TYPE OF NUMBER OF REQUIRED MEAN PATHWAY SAMPLED ANALYSES MEAN MEAN STATION #

ANALYSES LOWER LIMIT (F) NUMBER OF (UNIT OF PERFORMED PERFORMED (F) (F) NAME NONROUTINE OF DETECTION RANGE RANGE RANGE MEASUREMENT) DISTANCE AND DIRECTION REPORTED (LLD)

MEASUREMENTS MN-54 130 <12 <6.1 <12 16C5 (INDICATOR)

(0/2) (0/2) (0/2) VINCENT POOL 0

(<9.41<14) (<6.1/<6.1)

(<9.41<14) DOWNSTREAM OF DISCHARGE CO-58 130 <8.4 <6.7 <8.4 16C5 (INDICATOR)

(0/2) (0/2) (0/2) VINCENT POOL 0

(<4.7/<12) (<4.4/<8.9) (<4.7/<12) DOWNSTREAM OF DISCHARGE CO-60 130 <6.6 <7.1 <7.1 29C1 (CONTROL)

(0/2) (0/2). (0/2) POTTSTOWN VICINITY 0

(<5.7/<7.4) (<6,3/<7.8) (<6.31<7.8) UPSTREAM OF DISCHARGE FE-59 260 <15 <17 <17 29 C1 (CONTROL)

(0/2) (0/2) (0/2) POTTSTOWN VICINITY 0

(<15/< 15) (<15/<19) (<15/<19) UPSTREAM OF DISCHARGE ZN-65 260 <19 <11 <19 16C5 (INDICATOR)

(0/2) (0/2) (0/2) VINCENT POOL 0

(<18/,<20) (<7,8/<15) (<18/<20) DOWNSTREAM OF DISCHARGE CS-134 130 <11 <7.2 <11 16C5 (INDICATOR)

(0/2) (0/2) (0/2) VINCENT POOL 0

(<5.4/<16) (<6.1/<8.3) (<5.4/<16) DOWNSTREAM OF DISCHARGE CS-1 37 1.50 <9.2 <6.1 <9.2 16C5 (INDICATOR)

.(0/2) (0/2) (0/2) VINCENT POOL 0

(<8:3./<10) (<6/<6.1) (<873/<10) DOWNSTREAM OF DISCHARGE PREDATOR (FISH) GAMMA 4 (PCI/KG WET) K-40 N/A 2864 2436t' 2864 16Z5 (INDICATOR)

(2/2) (2/2) (212) VINCENT POOL 0 (2858/2870) (2201/2674) (2858/2870) DOWNSTREAM OF DISCHARGE MN-54 130 <10 <8.2 <10 16C5 (INDICATOR)

(0/2) (0/2) (0/2) VINCENT POOL 0 A *., (<7.9/<12) (<6. 1/<1 0) (<7.9A/12) DOWNSTREAM OF DISCHARGE FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F).

A-4

FOR TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

THE LIMERICK GENERATING STATION, 2001 DOCKET NUMBER: 50-352 & 50-353 NAME OF FACILITY: LIMERICK GENERATING STATION REPORTING PERIOD: 2001 LOCATION OF FACILITY: MONTGOMERY COUNTY, PA INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEAN MEAN MEAN STATION # NUMBER OF MEDIUM OR TYPE OF NUMBER OF REQUIRED (F) (F) (F) NAME NONROUTINE PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED (UNIT OF PERFORMED PERFORMED OF DETECTION MEASUREMENTS MEASUREMENT) (LLD)

<12 <6.6 <12 16C5 (INDICATOR) 0 CO-58 130 (0/2) (0/2) (0/2) VINCENT POOL

(<7.1/<16) (<6/<7.1) (<7.1/<16) DOWNSTREAM OF DISCHARGE

<9 <9.4 16C5 (INDICATOR) 0 CO-60 130 <9.4 (0/2) (0/2) (0/2) VINCENT POOL

(<7.51<11) (<7.5/<11) (<7.5/<11) DOWNSTREAM OF DISCHARGE

<18 <18 29C1 (CONTROL) 0 FE-59 260 <15 (0!2) (0/2) (0/2) POTTSTOWN VICINITY

(<13/<18) (<18/<19) (<18/<19) UPSTREAM OF DISCHARGE

<15 <16 16C5 (INDICATOR) 0 ZN-65 260 <16 (0/2) (0/2) (0/2) VINCENT POOL

(<14/<17) (<15/<16) (<14/<17) DOWNSTREAM OF DISCHARGE

<9.2 <11 16C5 (INDICATOR) 0 CS-134 130 <11 (0/2) (0/2) (0/2) VINCENT POOL

(<7.7/<14) (<6.6/<12) (<7.7/<14) DOWNSTREAM OF DISCHARGE

<7.8 <9.4 16C5 (INDICATOR) 0 CS-137 150 <9.4 (0/2) (0/2) (0/2) VINCENT POOL

(<6.9/<12) (<6.1/<9.4) (<6.9/<12) DOWNSTREAM OF DISCHARGE SILT GAMMA 6 (INDICATOR) 0 N/A 13901 12897 14461 16C4 (PCI/KG DRY) K-40 (2/2) VINCENT DAM (4/4) (2/2)

(11755/15790) (12590/13204) (13131/15790) 2.18 MILES SSE OF SITE

<38 16C4 (INDICATOR) 0 N/A <32 <24 MN-54 (0i2) VINCENT DAM (0/4) (0/2)

(<25/<49) (<23/<25) (<26/<49) 2.18 M!LES SSE OF SITE

<38 16C4 (INDICATOR) 0 N/A <30 <23 CO-58 (0/2)ý VINCENT DAM (0/4) (0/2)

(<191<51) (<20/<23) (<25/<51) 2.18 MILES SSE OF SITE IS INDICATED IN PARENTHESES (F).

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS A-5

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LIMERICK GENERATING STATION, 2001 NAME OF FACILITY: LIMERICK GENERATING STATION DOCKET NUMBER:

LOCATION OF FACILITY: MONTGOMERY COUNTY, 50-352 & 50-353 PA REPORTING PERIOD: 2001 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN MEDIUM OR .LO TYPE OF NUMBER OF CATIO NS LO CATION PATHWAY SAMPLED REQUIRED MEAN MEAN ANALYSES ANALYSES LOWER LIMIT MEAN STATION #

(UNITOF (F) (F) (F) NUMBER OF PERFORMED PERFORMED NAME NONROUTINE OF DETECTION RANGE RANGEONOUI MEASUREMENT) RANGE kLLU) ' Ur- A**U N.C DIRET'('U ION REPORTED IR E:AMAIi & l-l MI'dU L'INtU UN REPORTED

A A OIn r. 8t

.r'urcIvIpd I CO-60 N/A <41 <20 <54 16C4 (INDICATOR)

(014) (0/2) (0/2) VINCENT DAM

(<25/<81) (<17/<24) (<26/<81) 0 2.18 MILES SSE OF SITE CS-i 34 150 <50 <26 <59 16C4 (INDICATOR)

(0/4) (0/2) (0/2) VINCENT DAM, C<321<85) (<16/<36) (<32/<85) 2.18 MILES SSE OF SITE Cý-137 127 50 136 16C4 (INDICATOR) 0 180 (4/4) (2/2) (2/2) VINCENT DAM (70/81) (34/66) (91/181) 2.18 MILES SSE OF SITE AIR PARTICULATE GROSS BETA 260

,to*

(E-3 PCI/CU. METER) 21 21 21 14S1 (INDICATOR) 0 (20/208) (52/52) (52/52) LONGVIEW ROAD (6/43) (8/37) (7/42) 0.63. MILES SSE OF SITE GAMMA 20 BE-7 0 67 65 74 N/A 10S3 (INDICATOR)

(16/16) (4/4) (4/4) KEEN- ROAD (45/83) (51/74) (61/83) 0.50 MILES E OF SITE MN-54

<0.8 <0.8 <0.8 0 N/A 13C1 (INDICATOR)

(0/16) (0/4) (0/4)

(<0.7/<1.1) (<0.7/<1.1) KING ROAD

(<0.7/<0.8) 2.84 MILES SE OF SITE CO-58 0

<0.7 <0.7 <0.8 10S3 N/A (0/16) (INDICATOR)

(0/4) (0/4) KEEN ROAD

(<0.4/<1.4) (<0.5/1o.8) (<0ý.4/<1.4) 0.50 MILES E OF SITE CO-60

<0.9 <0.9 <1.0 r'..

liSi N/A (0/16) (INDICATOR) 0 (0/4) (0/4) LGS INFORMATION CENTER

(<0.7/<1.3) (<0.81<1) (<0.7/<1.3) 0.38 MILES ESE OF SITE CS-134 50 <0.7 <0.7 <0.8 liS1 (INDICATOR) 0 (0/16)

S(<0.o* 2 '; (0/4) (0/4) LGS INFORMATION CENTER

(<0.5/<1) (<0.51<1.2) 0.38 MILES ESE OF SITE FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F).

A-6

SUMMARY

FOR TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MON;TORING PROGRAM ANNUAL THE LIMERICK GENERATING STATION, 2001 DOCKET NUMBER: 50-352 & 50-353 NAME OF FACILITY: LIMERICK GENERATING STATION 2001 REPORTING PERIOD:

LOCATION OF FACILITY: MONTGOMERY COUNTY, PA INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEAN MEAN STATION # NUMBER OF TYPE OF NUMBER OF REQUIRED MEAN MEDIUM OR (F) (F) NAME NONROUTINE ANALYSES ANALYSES LOWER LIMIT (F)

PATHWAY SAMPLED RANGE RANGE DISTANCE AND DIRECTION REPORTED PERFORMED PERFORMED OF DETECTION RANGE (UNIT OF MEASUREMENTS MEASUREMENT) (LLD)

<0.6 <0.6 <0.7 10S3 KEEN ROAD (INDICATOR) 0 CS-137 60 (0/4) (0/4)

(w',6)

(<0.31<1) (<0.5/<0,8) (<0.5/<1) 0.50 MILES E OF SITE

<11 <11 liSi (INDICATOR) 70 <i1 0 1-131 260 (0/52) (0/52) LGS INFORMATION CENTER AIR IODINE (0/208)

(<4/<21) (<4/<22) 0.38 MILES ESE OF SITE (E-3 PCI/CU. METER) (<4/<22)

<0.3 <0.4 23F1 (CONTROL) 0

<0.3 1-131 126 (0/30) (0/4) REGIONAL FARM MILK (0/96)

(<0.1/<0.5) (<0.3/<0.5) 5.02 MILES SW OF SITE (PCI/LITER) 110 1448 2181 (INDICATOR)

GAMMA 1419 1362 0 K-40 N/A (22/22) (22/22) REGIONAL FARM (88688) 1.75 MILES SSW OF SITE (1279/1462) (1333/1681)

<3.4 <3,7 19B1 (INDICATOR) 15 <15 CS-134 (0/22) (0/22) REGIONAL FARM (0188) 1.95 MILES SSW OF SITE

(<1.5/<4.9) (<1.6/<6.8)

(<1.1/<628)

<3.7 10F4 (INDICATOR)

<3.4 <3.1 0 18 (0/22) REGIONAL FARM CS-137 (0/88) (0/22)

(<1.3/<4.8) (<1.6/<7.6) 6.60 MILES ESE OF SITE

(<1.1f<8.8)

<20 <22 21 B1 (INDICATOR) 0 60 <20 REGIONAL FARM BA-140 (0/88) (0/22) (0/22)

(<9.2/<30) (<11/<30) 1.75 MILES SSW OF SITE

(<6.5/<30)

<4.8 21 E1 (INDICATOR) 0

<4.1 <3.7 15 (0/22) REGIONAL FARM LA-140 (0/88) (0/22)

(<2.3/<9) 1.75 MILES SSW OF SITE

(<1.6/<9) (<1.4/<8.1) 11 13S2 (INDICATOR) 7.1 8.7 0 N/A 500 KV SUBSTATION TLD-QUARTERLY 160 (156/156) (4/4) (4/4)

DIRECT RADIATION (10.3/11.8) 0.41 MILES SE OF SITE (4.9/11.8) (8.0/10.3)

(MILLI-ROENTGEN/STD. MO.)

LOCATIONS IS INDICATED IN PARENTHESES (F).

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED A-7

APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHODOLOGIES

TABLE B-i: Location Designation and Identification System for the Limerick Generating Station XXYZ- 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.

Y - 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 III

TABLE B-2: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Limerick Generating Station, 2001 Location Location Description Distance &Direction From Site A Surface Water 13B1 Vincent Dam (indicator) 1-75 miles SE 24S1 Limerick Intake (control) 0.20 miles SW 10F2 Perkiomen Pumping Station (control) 7.25 miles E B1 Drinking (Potable) Water 15F4 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 - bi-wefelkly / monthly 9G1 Control 11.64 miles E 10F4 6.60 miles ESE 18C1 2.26 miles S 1981 1.95 miles SSW 21 BI 1.75 miles SSW 1D Milk - quarterly 36E1 4.70 miles N 22C1 2.92 miles SW 23F1 Control 5.02 miles SW 25C1 2.69 miles WSW F Air Particulates / Air Iodinem 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. Fish 16C5 Vincent Pool (indicator) Downstream of Discharge 29C1 Pottstown Vicinity (control) Upstream of Intake G Sediment 1682 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 B-2: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Limerick Generating Station, 2001 Location Location Description Distance & Direction From Site H Fnvironmental Dosimetry - TLD Site Boundary 36S2 Evergreen & Sanatoga Road 0.60 miles N 3S1 Sanatoga Road 0.44 miles NNE 5S1 Possum Hollow Road 0.45 miles NE 7S1 LGS Training Center 0.59 miles ENE 10S3 Keen Road 0.50 miles E 11S1 LGS Information Center 0.38 miles ESE 13S2 500 KV Substation 0,41 miles SE 14S1 Longview Road 0.63 miles SSE 18S2 Rail Line along Longview Road 0.26 miles S 21S2 Near Intake Building 0.19 miles SSW 23S2 Transmission Tower 0-53 miles SW 25S2 Sector Site Boundary 0.46 miles WSW 26S3 Met. Tower #2 0.40 miles W 29S1 Sector Site Boundary 0.55 miles WNW 31Sl Sector Site Boundary 0.26 miles NW 34S2 Met. Tower #1 0.58 miles NNW Intermediate Distance 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 10E1 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 SSWV 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 31 D2 Poplar Substation 3.87 miles NW Varnell Road 4.59 miles NNW 34El Control and Special-Interest Birch Substation (control) 24.76 miles NE 5H1 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

,I I

TABLE B-3: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methodologiies, Limerick Generating Station, 2001 Sample Analysis Sampling Method Collection Procedure Number Medium Sample Size Surface Water Gamma Spectroscopy Analytical Procedure Number Monthly composite from RMC-ER5 collection of water samples a continuous water for 2 gallon radiological analysis (Limerick Generating Env. Inc., GS-01 Determination of compositor. gamma emitters by Station) gamma spectroscopy Surface Water I Tritium TrBE, PRO-042.5 Determination Quarterly composite of gamma emitting RMC-ERS.Collection of water samples for adioisotopes

'from a continuous water radiologicat analysis (Limerick Generating 500 ml Env. Inc., T-02 Determination of M tcompositor. method) tritium in water (direct Drinking Water Gross Beta Station ;t e. o %f

.Monthly comnposite. from

compositor..

-. U...wcm:. Statin) railoia anlyi ýLl q Geneatin gross beta W(DS)-01 E.nv. Inc., in water (dissolved solidsoforgross Determination total residue) alpha and/or Env. Inc., W(SS)-02 Determination of gross alpha and/or gross beta inwater (suspended solids)

Drinking Water Gamma Spectroscopy Monthly composite from RMC-ER5 Collection of water samples TBE, PRO-032-41 Gross Alpha and/or for gross beta activity in 2 gallon Env. Inc., GS-01 Determination of a continuous water radiological analysis (Limerick Generating gamma emitters by compositor. gamma rsaoy Dtrisp n o ve Station) gamma spectroscopy Drinking Water Tritium Quarterly composite DRMC-ER5 rinking W ater Tritiu mT Collection of water samples for BE, P RO -042-5 Determ ination of gam m a em itting from a continuous water o mlnIn radiological analysis (Limerick Generating Dte r Fish Gamma

-- Spectroscopy ior Staion mEnv. Inc., T-02 Determination of tritthod)

Semi-annual samples method) im i ae dr c RMC-ER6 Collection of fish samples for collected via radiological analysis (Limerick Generating 1000 grams (wet) electroshocking or other S Determination of gamma emitters by Station)

Sediment Gamma Spectroscopy' Semi-annual grab o ntra

s:amples railgia'naiologicao (sismples e500Ge~nerating,.nv (Lmeik Air Particulates for grams (rrat-GrossgBeta One-week comp0osite of Env. Inc., 6S,01 Determination of RMC-ERS Colection of air particulate gamma emitters by and air I continuous air sampling iodine samples for radiologicl aEnalysis Env. nc. AP.O2.Determination of gross alpha and/or gross through glassfiber filter cubic meters btnr Ic280

(Limerick Generating Station) rticate filters beta inair particulate filters TBE, PRO-032-10 Gross beta

-fltr (drc and/ord&A n met alpha activity in air B-4

TABLE B-3: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methodologiies, Limerick Generating Station, 2001 Sample Analysis Sampling Method Collection Procedure Number Sample Size Analytical Procedure Number Medium ý Air Particulates Gamma Spectroscopy Quarterly composite of Env. Inc., AP-03 Procedure for compositing air 13 filters Env, Inc., GS-01 Determination of gamma emitters by each station particulate filters for gamma spectroscopic (approximately 3600 gamma spectroscopy analysis cubic meters)

TBE, PRO-042-5 Determination of gamma emitting radioisotopes Air Iodine Gamma Spectroscopy One-week composite of RMC-ER8 Collection of air particulate and air 1 filter (approximately Env, Inc., 1-131-02 Determination of 1-131 in charcoal continuous air sampling iodine samples for radiological analysis 280 cubic meters canisters by gamma spectroscopy (batch method) throuah charcoal filter (Limerick Generating Station) weekly)

Milk 1-131 Bi-weekly grab sample RMC-ER 10 Collection of milk samples for 2 gallon Env. Inc., 1-131-01 Determination of 1-131 in milk by anion when cows are on radiological analysis (Limerick Generating exchange pasture. Monthly all Station) other times TBE, PRO-032-20 Radiometric determination of 1-131 by the beta-gamma coincidence counting technique Milk Gamma Spectroscopy Bi-weekly grab sample RMC-ER10 Collection of milk samples for 2 gallon Env. Inc., GS-01 Determination of gamma emitters by when cows are on radiological analysis (Limerick Generating gamma spectroscopy pasture. Monthly all Station) other times TBE, PRO-042-5 Determination of gamma emitting radioisotopes TLD Thermoluminescence Quarterly TLDs RMC-ER9 Collection of TLD samples fcr 2 dosimeters ICN Pharmaceutical Dosimetry comprised of two radiological analysis (Limerick Generating Panasonic 814 Station)

(containing 3 each CaSO4 elements)

B-5

422 Figure B-1 Environmental Sampling Locations Within One Mile of the Limerick Generating Station, 2001 B-6

Figure B-2 Environmental Sampling Locations Between One and Five Miles of the Limerick Generating Station, 2001 B-7 III

Figure B-3 Environmental Sampling Locations Greater than Five Miles from the Limerick Generating Station, 2001 B-8

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY II[

TABLE C-I.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 10F2 13B1 24S1 PERIOD JAN-MAR (1) <107 <107 APR-JUN <106 <106 <106 JUL-SEP <111 <160 <160 OCT-DEC <118 <118 <118 MEAN 112 +/-12 123 +/- 51 123 +/- 51 (1) NO SAMPLES COLLECTE DURING THIS PERIOD C-1

TABLE C-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA STC COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La- 140 PERIOD 10F2 JAN < 2 < 2 < 3 < 3 <4 < 4 < 2 < 2 < 2 < 11 < 1.3 FEB (1)

MAR (1)

APR (1)

MAY 3 2 6 2 <2 7 4 3 2 22 < 3.6 JUN 2 2 4 3 <2 7 3 3 2 22 <7 JUL 4 3 8 2 <4 6 3 3 2 12 <2 2 1 3 2 <4 3 2 1 2 13 < 2.9 AUG SEP 3 3 4 2 <2 7 2 3 2 19 < 4.8 4 1 <2 4 2 1 2 18 < 4.4 OCT 1 1 NOV 3 2 4 3 <5 8 5 4 4 13 <4 DEC 3 1 4 2 <2 5 2 2 4 10 <3 MEAN 2 +/--2 2 +/-1 4 +/-_3 2 +/-_1 3 +/--2 5 +/-_3 3 +/--2 2 +/--2 2 +/-2 16 +/-_10 3.7 +/-3 13B1 JAN 3 4 <5 2 <6 5 3 4 3 12

2.3 FEB 2 2 2 <5 4 5 2 3 13

2.5 1 < 5 2 <4 4 2 3 3 13 < 3.9 MAR 2 APR 2 2 <5 2 <5 5 3 3 2 13

3.2 MAY 2 5 < 6 2 <4 5 2 5 3 13 <3 JUN 3 3 <8 2 <4 2 6 4 4 25 <4 JUL 3 2 <5 3 <3 5 3 3 3 15 < 2.9 AUG 2 <4 2 <3 3 1 2 2 11 <4 3 1 <4 2 <4 5 2 2 2 29 < 4.7 SEP 1 <3 1 <2 3 2 1 1 13 < 4.5 OCT NOV 3 3 <5 2 <3 3 3 3 4 14

4.2 2 1 <4 3 <3 4 3 2 2 9 <2 DEC MEAN 2 +/-_1 2 +/--2 5 +/-_2 2 +/--1 4 +/--2 4 +/-_2 3 +/--3 3 +/-_2 3 +/-2 15 +/-_12 3.4 +/-2 24S1 JAN 3 3 1 1 5 4 < 4 2 <3 15 < 3.2 FEB 1 3 3 2 3 7 <2 2 < 3 13 < 3.6 MAR 2 3 5 2 6 4 < 2 4 <3 13

2.4 APR 2 2 5 2 5 7 <2 4 <2 20 < 1.9 3 5 1 4 5 <2 4 <3 29

4.2 MAY 3 3 8 2 3 4 < 4 3 <3 17

3.2 JUN 3 2 5 2 2 7 < 4 4 < 4 20 < 3.7 JUL 2 1 2 1 2 3 <2 2 <2 9 < 1.9 AUG 2 SEP 3 3 3 3 4 7 <3 <3 20 < 54 2 1 2 3 < 2

i" 13 < 4.3 OCT 1 1 NOV 3 4 9 4 4 6 < 2 4 <3 19 < 4.7 DEC 2 1 3 2 2 3 < 2 2 < 1 7 < 1.8 MEAN 2 +1 2 +/-2 4 +/-+4 2 +/-2 3 +/-3 5 +/--3 3 +/-2 3 +/--2 2 +/-2 16 +/-_12 3.4 +/--2 (1) NO SAMPLE COLLECTED DURING THIS PERIOD C-2 iI I

TABLE C-I1.1 CONCENTRATIONS OF GROSS BETA INSOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER.+/- 2 SIGMA COLLECTION 15F4 15F7. 16C2 28F3 PERIOD 28F3 JAN <1.6 <1.6 <1.7 <1.7 FEB <1.6 <1.9 <1.7 <1.7 MAR <1.6 <1.7 <1.7 <1.7 APR <1.8 <1.9 <1.7 <1.9 MAY <1.6 <1.5 <1.7 <1.5 JUN < 1.6 <1.7 <1.7 <1.5 JUL < 1.9 <1.8 <1.7 <1.8 AUG <1.8 <1.7 <1.8 <1.9 SEP < 1.2 <1.0 <1.1 <1.1 OCT < 1.5 <1.7 <1.7 <1.7 NOV <0.9 <0.8 <0.9 <1.0 DEC <0.4 <0.9 <1.9 <0.3 MEAN 1.5 +/- 0.9 1.5 +/- 0.8 1.6 +/- 0.6 1.5 +/- 0.9 TABLE C-I1.2 CONCENTRATIONS OF GROSS BETA SOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 15F4 1SF7 16C2 28F3 PERIOD

.IAN 28F3

[ AMN 4.7 +/- 1.0 3.1 +/--0.9 2.9 +/- 0.9 3.1 t 1.0 FEB 2.4 +/- 1.1 2.3 +/- 1.1 2.0 ,_ 0.9 MAR <

2.5 +/- 0.9 1.5 < 1.5 < 1.5 < 1.6 APR 3.6 +/- 1.2 < . 1.7 3.9 +/- 1.2 < 1.8 MAY 2.6 +/- 0.9 2.4 +/--1.1 2.5 +/- 1.0 2.2 +/- 0.9 JUN 4.3 +/- 0.9 3.9 +/-0.9 3.6 +/- 0.9 3.3 +/- 1.0 JUL 4.7 1.3 4.3 +/-1.1 3.7 +/-1.3 AUG 3.2 +/- 0.9 4.2 +/-0.8 4.1 -1.1 3.3 +/- 1.1 SEP 4.9 +/- 1.3 5.4 1.1 4.4 +/- 1.0 3.3 +/- 1.0 4.9 +/- 0.8 OCT 3.8 +/-1.0 5.2 +/- 1.0 4.3 +/- 1.0 NOV 2.5 +/- 0.9 5.2 +/- 0.8 5.2 +/-_0.9 3.,q +/-0.7 DEC 4.4 +/- 0.8 5.6 +/-1.3 4.7 +/-1.2 6.5 +/-1.4 4.3 +/- 1.1 MEAN 4.0 t 2.6 3.6 +/- 2.6 , 3.5 +/- 2.5 3.2 +/- 2.3 TABLE C-I1.3 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 15F4

15F7 16C2 28F3 PERIOD JAN-MAR < 107 <- It .7 APR-JUN < '107 < 107 106 < 106 < 106 < 106 JUL-SEP 160 < 160 < 160 < 111 OCT-DEC 118 < 118 < 118 < 118 MEAN 123 t 51 123 +/- 51 123 +/- 51 111 +/- 11 C-3

TABLE C-II.4 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA STC COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 Cs-1 34 Cs-1 37 Ba-140 La-1 40 PERIOD 15F4 JAN < 3 < 3 < 3 < 2 < 6 < 5 < 4 < 3 < 2 < 14 < 3 FEB < 2 < 5 < 7 < 5 < 6 < 5 < 4 < 3 < 3 < 21 < 4 MAR < 3 < 3 < 3 < 2 < 4 < 5 < 3 < 2 < 3 < 13 < 2 APR < 2 < 2 < 5 < 3 < 5 < 6 < 3 < 4 < 2 < 10 < 3 MAY < 2 < 4 < 7 < 3 < 5 < 5 < 3 < 3 < 3 < 27 < 4 JUN < 2 < 1 < 5 < 2 < 3 < 4 < 3 < 3 < 3 < 29 < 3 JUL < 2 < 2 < 5 < 2 < 3 < 6 < 3 < 4 < 3 < 12 < 4 AUG < 2 < 1 < 3 < 1 < 3 < 4 < 2 < 2 < 1 < 11 < 2 SEP < 4 < 2 < 5 < 2 < 4 < 6 < 5 < 4 < 4 < 26 < 6 OCT < 1 < 1 < 3 < 1 < 2 < 2 < 2 < 1 < 1 < 19 < 3 NOV < 4 < 4 < 5 < 3 < 4 < 6 < 4 < 3 < 4 < 23 < 4 DEC < 2 < 3 < 5 < 2 < 6 < 4 < 3 < 2 < 2 < 19 < 2 MEAN 2+/-2 3+/-2 5+/-3 2+/-2 4+/-+3 5+/-2 3+/-2 3+/-2 3+/-2 19+/-13 3+/-2 15F7 JAN < 2 < 3 < 8 < 3 < 3 < 5 < 4 < 4 < 5 < 14 < 2 FEB < 3 < 3 < 4 < 2 < 5 < 4 < 4 < 2 < 4 < 17 < 3 MAR < 3 < 3 < 2 < 1 < 4 < 5 < 4 < 3 < 2 < 12 < 2 APR < 2 < 3 < 2 < 2 < 3 < 5 < 2 < 3 < 2 < 12 < 3 MAY < 3 < 2 < 7 < 2 < 5 < 7 < 2 < 3 < 3 < 22 < 5 JUN < 3 < 3 < 5 < 1 < 3 < 8 < 3 < 3 < 3 < 11 < 3 JUL < 3 < 3 < 2 < 4 < 4 < 7 < 3 < 3 < 3 < 12 < 6 AUG < 1 < 2 < 4 < 1 < 2 < 4 < 2 < 2 < 2 < 11 < 3 SEP < 2 <2 < 4 < 1 < 2 < 5 < 3 < 3 < 2 < 26 < 4 OCT < 1 < 2 < 2 < 2 < 2 < 5 < 3 < 2 < 2 < 23 < 5 NOV < 2 < 3 < 3 < 3 < 6 < 4 < 2 < 3 < 4 < 17 < 1 DEC < 3 < 2 < 5 < 2 < 4 < 6 < 2 < 3 < 3 < 10 < 2 MEAN 2+/--1 3+/-1 4+/-+4 2+/-2 4+/-2 5+3 3+/-2 3+/-1 3+/-2 16+/-11 3+2 C-4

TABLE C-II.4 CONCENTRATIONS OF GAMMA EMITTERS THE VICINITY OF LIMERICK GENERATING INDRINKING WATER SAMPLES COLLECTED IN STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA STC COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 16C2 P ERIOD < <1 Z, r-9 5 NbNC-95 C- 1 34 ^ " La-140

< 4 <1 <2 <3 <2 <1 <1 <18 <J4 FEB < 2 < 2 < 4 <

41<6 IV/ mr 3 3 4 3 2 8 APR 2 2 <8 4 3 .3 3 3 3 3 2 2 <4 15 2 MAY 3 4 3 2 5 3 2 17 2 JUN 4 <7 5 3 2 3 4 4 20 2 2 < 3 5 JUL 3 2 2 3 3 4 2 5 <5 13 3 AUG 3 2 2 2 3 2 16 4 SEP 7 3 <5 2 3 2 6 2 11 OCT 2 5 <5 2 5 1 2 4 4 3 2 3 17 7 NOV 4 < 2 2 2 4 2 1 19 DEC 1 4 4 <8 8 6 1 1 4 4 4 3 2 <1 3 18 1 .4 1 MEAN 2+/- 2 2+/- 1 4+/-3 , 2+/-2 3+/-3 5+4 3+/-2 3+/-2 2+/-2 15+/-10 28F3 JAN 4+/-3 3 < 3 6 FEB < 3 < 5 < 5 4 < 2 3 <2 3 5 < 5 < 7 <5 <4 MAR 3 < 5 <5 3 4 < 2 < 3 APR 4 <8 <3 3 < 3 2 <4 3 < 11 5 < 2 < 4 <7 <3 MAY 3 < 3 < 2 << fi11 3 5 <2 <3 3 < 3 JUN <5 < 9 2 < 3 6 < 3 <4 2 JUL

<6 <5 2 3 <

< 2 2 < 1 3 4 4 <

AUG <4 <5 <4 3 2 < 2 2 < 3 2 << 12 19 3 <2 < 3 < 5 SEP 1 <1 <3 3 < 18 OCT 3.. S1- < 2 < 3 2

< 2 < 4 1 < 1 4 < < 16

1. < 2 < 3 <2 <3 NOV 3 < 3 2 2 5 <2 < 13 < 4 DEC < 3 < 6 3 <

3 < 2 4 3

17 < 4

<.3... < .3 < 7. 4

<3 < 13 <4 MEAN 3 +/-2 2+/-.1 3 <

17 5+/-2 ." 2+/-2 1/4"4+/-3 <4 5+/-3 3+/-2 3+/-2 2+/-2 1,4+/-6 3+/-2 C-5

TABLE C-II1.1 CONCENTRATIONS OF GAMMA EMITTERS IN PREDATOR & BOTTOM FEEDER (FISH)

SAMPLES COLLECTED INTHE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA STC COLLECTION K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-1 34 Cs-1 37 PERIOD 05/24 - 05/24/01 2858+/-322 < 12 < 16 < 18 < 11 <18 < 14 < 12 10/11 -10/11/01 2870 +/- 153 < 8 < 7 < 13 <

8 <14 < 7 MEAN 2864 +/- 17 10 +/- 6 12+/-13 15+/-7 9+/-5 16+/-5 11+/-9 9+/- 7 BOTTOM FEEDER 05/24 - 05/24/01 2837+/-378 < 14 < 12 < 15 < 6 < 20 < 16 < 8 10/11 - 10/11/01 2966 +/-242 < 9 < 5 < 15 < 7 <18 < 5 < 10 MEAN 2902 +/- 182 12 17 8 t 10 15 +/- 1 7+/-2 19+/-2 11+/-14 9+/- 2 29C1 PREDATOR 05/10 - 05/10/01 2201 +/- 153 < 6 < 6 < 18 < 8 < 16 < 7 < 6 10/05 - 10/05/01 2674+/-254 < 10 < 7 < 19 < 10 < 15 < 12 < 9 MEAN 2438 +/- 669 8 +/-6 7+/-2 18 +/- 2 9+/-4 15 +/- 2 9+/- 7 8+/- 5 BOTTOM FEEDER 05/10 - 05/10/01 2733 +/-201 < 6 < 4 < 15 < 8 < 8 <6 < 6 10/05 - 10/05/01 2813 +/-249 < 6 < 9 < 19 < 6 <15 <8 < 6 MEAN 2773+/-113 6+/-0 7+/-6 17 +/- 6 7+/-2 !1 +/-10 7+/-3 6+/- 0 C-6

TABLE C-IV-1 CONCENTRATIONS OF GAMMA EMITTERS INTHE VICINITY OF LIMERICK GENERATINGINSILT SAMPLES COLLECTED STATION, 2001 RESULTS IN UNITS OF PCI/KG DRY +/- 2 SIGMA K-40 Mn-54 Co-58 16B2 Co-60 C134 Cs Cs-137 fl/.'1/l'Arnt 4 A ,* .*A

27 < 19 <

11/30/2001 11755 +/- 685 32 < 45

25

166 +/- 38 25 < 25

40 70 t 27 MEAN 13342 +/- 4489 26+/- 3 22 +/- 8 29 +/- 10 42 17 118 +/- 136 16C4 05/31/2001 15790 +/- 1452

49 < 51 <

11/30/2001 131-31 +/- 638 81 85

26 < 25 181 +/- 56

< 26 < 32 91 +/-24 MEAN 14461 +/- 3760 38 + 33 38 +/- 36 54 +/- 79 59 +/- 75 136 +/- 128 33A2 05/31/2001 12590 +/- 707 < 23 < 23

11/30/2001 13204 +/- 707 < 24

16 25 < 22

66 +/- 27 17 < 36 34 +/-18 MEAN 12897 +/- 868 24 3 23 +/- 2 20 +/- 9 26 +/- 29 50 +/- 45 C-7

TABLE C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA GROUP 11 GROUP III GROUP I 13C1 22G1 WEEK 10S3 liS1 14S1 22 +/- 4 21 +/-+3 16 +/- 3 20 +/- 4 20 +/- 4 17 +/- 3 20 +/- 3 26 +/- 4 23 +/- 3 2 22 +/- 3 18 +/- 4 15-+/-3 18 +/-4 18 4 13 + 3 3 28 +/- 4 21 +/- 4 27 +/- 4 25+/- 4 25 +/- 4 4 18 +/- 3 21 +/- 3 20 +/- 4 21 +/-+4 20 +/- 4 5 18 +/- 4 17-+/-3 17 +/- 4 16+ 3 20 +/- 4 6 20 _ 4 19- 3 21 +/- 4 20 +/-+4 20 +/- 4 7 21 +/-3 25 +3 19 +/- 3 17+ 3 21 +/- 3 8 19 4 19+ 4 19 +/- 4 24 +/-4 21 +/- 4 9 13 +/- 3 12+/- 3 10 13 +/- 3 13+ 4 12 +/- 3 10 +/- 3 12+/- 3 11 8+/-3 11 -3 16 +/-4 13+/- 3 13 +/- 3 14 3 12 10+ 3 13+/- 3 12+/- 3 7+3 10 +/- 3 10+ 3 13 9-3 10 3 8+/-3 13 +/-4 10+/- 3 14 11 +/-4 14 3 13+ 3 15+ 3 10+ 3 15 13+/- 3 23 +/-+4 22+/- 4 22 +/- 4 27 +/-+4 25 +/-+4 16 25 +/-+3 25+/- 3 26 +/-+3 23 +/-+3 25 +/-+3 17 29+/-4 26 +/- 4 29 +/- 4 27 +/-+4 29 +/-+4 18 19+/- 3 21 +/-+3 20 +/- 3 19 +/- 3 22 +/-+3 19 10+/- 3 14 +/- 3 12 +/- 3 13 +/- 3 12+/- 3 20 7+3 8+/-3 6+/-3 6+/-3 7+3 21 9+4 13+/- 4 11 _4 10+/- 4 10+/- 4 22 14+/- 3 16+/-3 17 3 17+/- 3 14 +/- 3 23 19+/-4 17 3 20 +/-+4 22+/- 4 18 +/- 4 24 17+/- 3 14+/- 3 16 3 21 -3 18 +/- 3 25 20+/-3 26+/-3 26+ 3 27 +/-+4 26 +/- 3 26 16+/- 3 15+/-3 12+/- 3 14+/- 3 19+/-3 27 17 +/-+3 18+/- 3 14 +/- 3 16+/- 3 14+ 3 28 18+/- 3 19+/- 3 21 +/- 3 20 +/- 3 22 +/-+3 29 14+ 3 12 3 12 +/- 3 14+/- 3 11 +/-3 30 20 +/-+4 16+/- 4 21 +/- 4 19+/-+4 20 +/-+4 31 31 +/-_4 31 +/-4 28 +/- 4 22 +/- 4 30 +/-+4 32 32_+/-4 29+/-4 24 +/- 3 28 +/- 4 30+/- 4 33 27 +/- 4 26 +/- 4 28 +/- 4 30 +/- 4 27 4 34 22 +/- 3 21 +/- 3 23 +/- 4 22 +/- 4 20 +3 35 20 +/- 4 19 +/- 4 17 +/- 4 18+/-4 21 +/-_4 36 24 +/- 4 23+/-+4 22 +/- 4 20 +/-+4 23 +4 37 34 +/- 4 32 +/- 4 35 +/- 4 35 +/-+4 37 +/- 4 38 16 +/-3 13 +/- 3 15 +/- 3 15 3 12 +/- 3 39 39+/- 4 36 +/- 4 37 +/- 4 35 +/-+4 35 +/- 4 40 15 +/-3 14 +/- 3 16 +/- 3 18+/- 4 17+/-+4 41 24+/- 4 22 +/- 4 23 +/- 4 23 +/-+4 24 +/- 4 42 18+ 4 21 +/-+4 20 +/- 4 19+/- 4 15_+/-3 43 28 +/-+4 26 +/- 4 28 +/- 4 26 +/-+4 29 +/- 4 44 17+/- 4 26 +/- 4 25 +/- 4 22 +4 19 +/- 4 45 42 +/-+4 35 +/- 4 34 +/- 4 31 +/-4 42 +/-+5 46 25.+ 3 17 +/- 3 23 +/- 3 23 +/- 3 23 +3 47 28 +/-+4 30 +/- 4 28 +/- 4 27 +/- 4 28 +/-+4 48 43 +/-+4 37 +/- 4 49 43 +/- 4 42 +/- 4 40_+4 22 +/-_3 26 +/- 4 28 +/- 4 27 +/- 4 25 +/-+4 50 18+ 3 22 +/- 3 21 +/- 3 24 +/- 4 22 +/-_3 51 30+/- 4 32 +/- 4 33 +/- 4 29 +/- 4 29_ 4 52 21 +/-+16 21 +/-_14 21 +/- 15 21 +/-15 MEAN 21 +/- 16 C-8 III

TABLE C-V.2 MONTHLY AND YEARLY MEAN VALUES OF GROSS BETA PARTICULATE SAMPLES COLLECTED CONCENTRATIONS (E-3 PCI/CU. METER) INAIR INTHE VICINITY OF LIMERICK GENERATING STATION, 2001 GROUP I - ON-SITE LOCATIONS LOCAIONSGROUP GROUP II - INTERMEDIATE III - CONTROL LOCATIONS COLLECTION - MIN. MAX. DISTANCE MEAN +/- COLLECTION PEID D MIN. MAX. MEAN +/-

EID COLLECTION MIN. MAX.

2 SID PERIOD MEAN +/

01/02/2001 - 01/29/2001 13 2 SID 27 21+/-9 01/02/2001 - 01/29/2001 01/29/2001 - 02/26/2001 16 17 28 21 +/- 10 21 19 +/- 3 01/29/2001 - 02/26/2001 01/02/2001 - 1/29/2001- 15 02/26/2001 - 04/02/2001 18 21 21 19 6 7 24 13 +/- 10 19 +/- 3 01/29/2001 - 02/26/2001 04/02/2001 - 04/30/2001 02/26/2001 - 04/02/2001 10 17 25 21 +/- 7 8 27 18 +/- 14 19 13 +/- 7 02/26/2001 - 04/02/2001 04/30/2001 - 06/03/2001 04/02/2001 - 04/30/2001 10 12 19 14 +/- 6 6 29 25 17 +/- 16 04/02/2001 - 04/30/2001 161+/- 16. 04/30/2001 - 06/03/2001 10 25 06/03/2001 - 07/02/2001 7 29 15 +/- 18 18 +/- 14 14 27 20 +/- 9 06/03/2001 - 67/02/20 1 04/30/2001 - 06/03/2001 07/02/2001 - 07/30/2001" 14 20 8 26 16 _ 14 11 22 16.8 0 .18 +/- 5 06/03/2001 - 07/02/2001 07/30/2001 - 09/04/2001 07/02/2001 - 07/30/2001 14 14 26 18 +/- 11 19 18 16+/-3 07/02/2001 - 07/03/

30 25 +/- 8 07/30/2001 - 09/04/2001 20 01 1 9 16+/-6 09/04/2001 - 10/01/2001 12 20 32 26 +/- 11 37 23 + 17 09/04/2001 - 10/01/2001 07/30/2001 - 09/04/2001 16 10/01/2001 - 10/29/2001 16 34 31 25 +/- 12 15 37 24 + 15 09/04/2001 - 10/01/2001 24 + 16 10/01/2001 - 10/29/2001 13 32 22 +/-

10/29/2001 - 12/03/2001 15 39 24 +/- 21 16 19 42 27 +/- 11 10/29/2001 - 12/03/2001 10/01/2001 - 10/29/2001 12/03/2001. 12/31/2001 17 42 14 36 23 +/- 18 21 43 30 15 28 +/- 18 10/29/2001 - 12/03/2001 12/03/2001 - 12/31/2001 18 17 35 27 +/- 13 43 28 +/- 22 12/03/2001 - 12/31/2001 01/02/2001 - 12/31/2001 22 37 29+/- 13 6 *3 21 + 15 01/02/2000c1- i2/31/2001 7 43 21 +/- 16 01/02/2001 - 12/31/20'01 8 37 21 +/- 14 C-9

TABLE C-V.3 CONCENTRATION OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA STC COLLECTION Be-7 Mn-54 Co-58 Co-60 Cs-134 Cs-137 PERIOD 10S3 01/01 - 04/02/01 61 +/- 17 < 0.7 < 0.8 < 0.7 < 0.4 < 0.8 04/02- 07/02/01 80+/- 19 < 0.8 < 0.4 < 0.8 < 0.7 < 1 07/02- 10/01/01 83+/- 21 < 0.8 < 0.6 < 0.9 < 1.2 < 0.5 10/01 - 12/31/01 71+/- 18 < 0.7 < 1.4 < 0.9 < 0.4 < 0.5 MEAN 74+/-20 0.8+/-0.1 0.8+/-0.9 0.8+/-0.2 0.7+/-0.8 0.7+/-0.5 11S1 01/01 - 04/02/01 49_+/- 14 < 0.8 < 1 < 0.7 < 0.6 < 0.8 04/02- 07/02/01 71+/- 16 < 0.8 < 0.6 < 1.2 < 0.5 < 0.3 07/02 - 10/01/01 79+/- 20 < 0.8 < 0.6 < 0.9 < 1.2 < 0.3 10/01 - 12/31/01 73+/- 18 < 0.9 < 0.6 < 1.3 < 1 < 0.4 MEAN 68++/-26 0.8+/-0.1 0.7+/-0.4 1+/-0.6 0.8+/-0.7 0.5+/-0.5 13C1 01/01 - 04/02/01 48-+/-16 < 0.7 < 0.9 < 0.7 < 0.4 < 0.6 04/02- 07/02/01 78+/-20 < 0.8 < 0.4 < 0.8 < 0.4 < 0.5 07/02 - 10/01/01 78+/- 30 < 0.7 < 0.7 < 0.9 < 1 < 0.5 10/01 - 12/31/01 60+/- 17 < 1.1 < 0.9 < 1.1 < 0.7 < 0.6 MEAN 66+/- 29 0.8+/- 0.4 0.7+/- 0.5 0.9+/- 0.3 0.6+/- 0.6 0.5+/- 0.1 14S1 01/01 - 04/02/01 45+/- 18 < 1.1 < 0.6 < 1 < 0.6 < 0.6 04/02- 07/02/01 78+/- 18 < 0.7 < 0.8 < I < 0.4 < 0.7 07/02- 10/01/01 53+/- 15 < 0.7 < 0.6 < 0.9 < 1.2 < 0.5 10/01 - 12/31/01 72+/- 16 < 0.7 < 0.8 < 0.8 < 0.8 < 0.4 MEAN 62+/- 31 0.8+/- 0.4 0.7+/- 0.2 0.9+/- 0.2 0.7+/- 0.7 0.6+/- 0.3 22G1 01/01 - 04/02/01 51+/- 15 < 0.7 < 0.5 < 0.8 < 0.6 < 0.5 04/02-07/02/01 74+/- 12 < 0.8 < 0.7 < 0.8 < 0.5 < 0.5 07/02- 10/01/01 69+/-_24 < 0.8 < 0.8 < 0.8 < 1 < 0.5 10/01 - 12/31/01 66+/- 18 < 0.7 < 0.6 < 1 < 0.8 < 0.8 MEAN 65+/- 20 0.8+/- 0.1 0.7+/- 0.3 0.9+/- 0.2 0.7+/- 0.4 0.6+/- 0.3 C-10 I I[

TABLE C-VI.1 CONCENTRATIONS OF 1-131 INAIR IODINE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN.UNITS OF PCI/CU METER +/- 2 SIGMA GROUP I GROUP II GROUP III WEEK 1 0S3 14S.1 ii " . -i

-... 13CI I II 22GI 01 13 13 13 < 12 < 12 02 8 8 8 < 8 < 8 03 6 6 6 < 5 < 5 04 15 15 15 < 14 < 14 05 8 8 8 < 7 < 7 06 13 13 14 < 13 < 13 07 13 13 13 < 13 < 12 08 10 10 10 < 10 < 9 09 6 6 6 < 6 < 6 10 10 10 10 < 10 < 10 10 10 < 10 < 9 11 10 12 8 8 8 < 8 < 7 13 6 6 6 < 6 < 6 12 < 12 < 11 14 12 12 15 16 16 16 < 16 < 15 16 11 11 11 < 11 < 11 17 12 11 12 < 11 < 11 18 12 12 12 < 11 < 11 19 10 10 11 < 10 < 10 20 13 13 13 < 12 < 12 21 10 9 10 < 9 < 9 22 22 22 .' 21 < 21 22 23 12 12 12 < 12 < 11 24 10 10 11 < 10 < 10 25 17 17 -17 < 16 < 16 26 6 7 6 < 6 < 6 27 9 10 9 < 9 < .10 28 9 9 9 *:. 9 < 9 29 16 16 16 < 16 <_ 16 30 13 13 13 < 13 < 13 31 16 16 16 < 16 < 16 32 10 10 10 < 10 < 10 33 14 15 14 < 14 < 14 34 8 8 8' < 8 < 8 35 4 4 4 < 4 < 4 36 9 9 9 < 9 < 9 37 13 13 13 < 13 < 13 38 6 6 6 < 6 < 6 39 14 14 14 < 14 < 14 40 9 10 9 < 9 < 9 41 10 11 10 < 10 < 11 42 17 18 17 < 17 < .18 8 8 8 < 8 < 8 43 8 8 8 < 8 < 8 44 10 11 10 < 10 < 10 45 46 12 12 12 < 12 < 12 18 19 18 < 18 < 18 47 48 11 11 11 < 11 < 11 49 7 7 7 < 7 < 7 50 9 10 9 < 9 < 9 51 7 7 7 < 7 < 7 52 12 12 12 < 12 < 12 11 +/-_7 11 +/-_7 11 7 11 11 +/-7 MEAN C-11

TABLE C-VII.1 CONCENTRATIONS OF 1-131 INMILK SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA CONTROL FARMS INDICATOR FARMS COLLECTION 36E1 9G1 23F1 18C1 19B1 21 B1 22C1 25C1 10F4 PERIOD 01/09/2001

0.4 < 0.4 < 0,5 0.4 0.3 < 0.3 < 0.4 < 0.4 < 0.4 02/06/2001 < 0.2 0.2 0.2 < 0.2 < 0.3 03/13/2001 < 0.3 0.3 0.3 0.3 < 0.3 04/03/2001 S0.2 < 0.2 < 0.5 0.3 0.3 0.3 <: 0.4 < 0.2 < 0.2 04/17/2001 < 0.3 0.4 0.4 0.4 < 0.4 04/30/2001 < 0.2 0.2 0.3 0.3 < 0.2 05/15/2001 < 0.2 0.2 0.2 0.2 < 0.2 05/29/2001 < 0.2 0.2 0.2 0.3 < 0.2 06/12/2001 < 0.4 0.2 0.3 0.3 < 0.3 06/26/2001 < 0.2 0.2 0.2 0.2 < 0.2 07/10/2001

0.3 < 0.4 < 0.3 0.4 0.4 0.3 <

0.3 < 0.3 < 0.3 07/24/2001 < 0.2 0.2 0.2 0.2 < 0.2 08/07/2001 < 0.1 0.2 0.2 0.1 < 0.2 08/21/2001 < 0.2 0.2 0.2 0.2 < 0.2 09/04/2001 < 0.3 0.3 0.3 0.3 < 0.3 09/18/2001 < 0.2 0.3 0.3 0.2 < 0.3 10/02/2001 S0.3 < 0.2 < 0.3 0.2 0.2 0.2 <

0.2 < 0.3 < 0.2 10/16/2001 < 0.2 0.3 0.3 0.2 < 0.2 10/31/2001 < 0.3 0.4 0.4 0.4 < 0.3 11/12/2001 < 0.5 0.2 0.3 0.3 < 0.2 11/26/2001 < 0.2 0.5 0.2 0.2 < 0.3 12/10/2001 < 0.3 0.3 0.3 0.3 < 0.3 MEAN 0.3 + 0.2 0.3 +/- 0.2 0.4 +/- 0.2 0.3 +/- 0.2 0.3+/- 0.1 0.3 +/-0.1 0.3 +/- 0.2 0.3 +/-0.2 0.3+/- 0.1 C- 12

TABLE C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 STC SAMPLING K-40 Cs-i 34 Cs-I 37 Ba-i 40 La-i 40 PERIOD I10F4 01/09/2001 1434 +/- 117 < 4 < 3

10 02/06/2001 < 3 1442 +/- 173 < 6 < 5

24 < 3 03/13/2001 1413 +/- 113 < 4 < 4

19 < 3 04/03/2001 1387 +/- 181 < 5 < 8

22 < 5 04/17/2001 1434 +/- 121 < 3 < 3

23 < 5 04/30/2001 1268 +/- 116 < 3 < 3

20 05/15/2001 <~ 3 1445 +/- 143 < 4 < 6

25 < 4 05/29/2001 1400 +/- 124 < 4 < 4

19 06/12/2001 < 4 1410 +/- 93 < 3 < 3

29 < 4 06/26/2001 1441 +/- 112 < 5 <~ 4 < 29 < 3 07/10/2001 1430 +/- 131 < 4 < 4 <25 <~ 3 07/24/2001 1322 +/- 106 < 5 < 4 < 21 < 3 08/07/2001 1432 +/- 120 < 4 < 5 22? < 5 08/21/2001 1447 +/- 110 < 3 < 3 < .26 < 3 09/04/2001 1450 +/- 113 < 3 <~ 4 < 25 < 4 09/18/2001 1314 +/- 118 < 4 < 5 < 22 < 3 10/02/2001 1420 +/- 112 < 4 < 3 < 20 10/16/2001 1433 +/- 45

< 2

< 2 < 2 < 23 10/31/2001 < 6 1424 +/- 112 < ý3 < 3 < 25 < 3 11/12f2001 1386 +/- 45 <2 <2 < 18 < 5 11/26/2001 1437 +/- 86 < 3 < 3 < 15 < 3 12/10/2001 1365 +/- 118 <2 4

< < 17 < 3 MEAN 1406+/- +/-97 4+/- 2. 4+/- 3 22+/- 9 4 +/-2 1801 01/09/2001 .15.46. +/-68 < 2 2 < 15 < 5 02/06/2001 1398 +/- 115 < 3 < 4 < 7 < 2 03/13/2001 1458 +/- 130 < 4 < 4 < 18 04/03/2001 1358 +/-110 < 3 < 5 04/17/2001 "< .4 < 22 < 4

.1436 +/-127 < .4 04/30/2001 <

< 17 < 3 1235 +/-115 < 5 3

< 14 < 4 05/15/2001 1265 +/- 127 < 3 < 3 06/29/2001 1377 +/- 142 < 19 < 3

< 3 < 5 < 16 <

06/12/2001 1367 +/- 102 < 3 3

< 4 < 26 06/26/2001 1343 +/- 124 < 3

< 3 < 5 < 18 <

07/10/2001 1423 +/- 117 3

< 5 < 3 < 20 < 4 07/24/2001 1340 +/- 131 ' < 5 < 25 <

08/07/2001 1242 +/- 112 < 4 4

< 4 < 16 08/21/2001 1360 +/- 109 < 5 < 2

< 4 < 26 09/04/2001 .1391 +/- 106 < < 5 3 < 4 < 19 < 2 09/18/2001 _1,424.+/- 115ý < 3 < 4 < 14 <

10/02/2001 1l433 +/- 123 < 3 3

< 15 < 3 10/16/2001 1362 +/-67 < 2 < 2 < 28 10/31/2001 1403 +/-80 < 3 < 7

< 3 < 21 11/12/2001 1392 +/-68 <~ 5

< 2 < 2 < 20 < 6 11/26/2001 1441 +/-72 < 3 < 3 < 13 <~ 4 12/10/2001 1453 +/-127 < 4 < 4 < 17 < 2 MEAN 1384 +/- 145 3+/- 2 4+/- 2 18+/- 10 +/-3 4

C - 13

TABLE C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA STC SAMPLING K-40 Cs-134 Cs-137 Ba-140 La-140 PERIOD 19B1 01/09/2001 1630 +/- 160 < 3 < 5 < 13 < 6 02/06/2001 1397 +/- 171 < 7 < 6 < 22 < 3 03/13/2001 1387 +/- 113 < 3 < 3 < 16 < 3 04/03/2001 1463 +/- 119 < 4 < 2 < 25 < 7 04/17/2001 1235 +/- 107 < 4 < 3 < 15 < 3 04/30/2001 1361 +/- 131 < 6 < 4 < 18 < 2 05/15/2001 1544 +/- 160 < 3 < 3 < 15 < 6 05/29/2001 1278 +/- 124 < 5 < 4 < 19 < 4 06/12/2001 1443 +/-44 < 2 < 1 < 10 < 3 06/26/2001 1524 +/- 139 < 5 < 3 < 26 < 4 07/10/2001 1482 +/- 113 < 4 < 3 < 20 < 3 07/24/2001 1464 +/- 125 < 4 < 4 < 24 < 4 08/07/2001 1437 +/- 120 < 5 < 3 < 25 < 6 08/21/2001 1464 +/- 111 < 3 < 2 < 25 < 3 09/04/2001 1507 +/- 114 < 4 < 3 < 19 < 4 09/18/2001 1499 +/- 135 < 4 < 3 < 19 < 3 10/02/2001 1512 +/- 105 < 3 < 4 < 21 < 5 10/16/2001 1394 +/-44 < 2 < 2 < 17 < 7 10/31/2001 1359 +/- 85 < 3 < 3 < 29 < 5 11/12/2001 1408 +/- 44 < 2 < 2 < 26 < 6 11/26/2001 1423 +/- 122 < 4 < 4 < 21 < 4 12/10/2001 1437 +/- 133 < 4 < 4 < 17 < 4 MEAN 1439 +/- 174 4+/- 2 3+/- 2 20+/- 10 4 _3 21B1 01/09/2001 1545 +/- 128 < 5 < 4 < 23 < 5 02/06/2001 1681 +/- 194 < 5 < 9 < 24 < 3 03/13/2001 1541 +/- 116 < 5 < 3 < 15 < 3 04/03/2001 1425 +/- 100 < 2 < 2 < 28 < 5 04/17/2001 1344 +/- 137 < 5 < 4 < 21 < 3 04/30/2001 1535 +/- 114 < 3 < 3 < 18 < 4 05/15/2001 1454 +/- 169 < 4 < 2 < 23 < 5 05/29/2001 1378 +/- 106 < 4 < 4 < 11 < 2 06/12/2001 1441 +/- 90 < 3 < 2 < 27 < 5 06/26/2001 1509 +/- 107 < 2 < 4 < 26 < 5 07/10/2001 1437 +/- 115 < 4 < 4 < 25 < 9 07/24/2001 1333 +/- 117 < 5 < 5 < 22 < 3 08/07/2001 1428 +/- 112 < 4 < 4 < 27 < 9 08/21/2001 1533 +/- 114 < 4 < 4 < 30 < 8 09/04/2001 1469 +/- 122 < 5 < 4 < 13 < 3 09/18/2001 1506 +/- 121 < 3 < 3 < 23 < 3 10/02/2001 1419 +/- 104 < 4 < 2 < 26 < 4 10/16/2001 1381 +/- 42 < 1 < 2 < 28 < 7 10/31/2001 1372 +/- 39 < 2 < 1 < 22 < 4 11/12/2001 1374 +/- 46 < 2 < 1 < 26 < 6 11/26/2001 1359 +/- 119 < 4 < 3 < 23 < 5 12/10/2001 1397 +/- 119 < 4 < 2 < 13 < 3 MEAN 1448 +/-+170 4+/-_2 3_+/-3 22+11 5 +/-_4 C - 14 II I

TABLE C-VII.2 CONCENTRATIONS OF, GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA STC SAMPLING K-40 Cs-1 34 Cs-137 Ba-140 3 La-1 40 PERIOD 9G1 01/09/2001 1434 +/-_48 < 2 < 2 < 13 <

02106/2001 3 1460 +/- 123 < 3 < 4 < 9 < 1 03/13/2001 1391 +/- 109 < 3 < 4 < 12 < 3 04/03/2001 1331 +/- 118 < 4 < 3 < 25 < 3 04/17/2001 1350 +/- 132 < 5 < 3 < 21 < 2 04/30/2001 1415 +/- 122 < 4 < 4 < 17 < 3 05/15/2001 1355 +/- 122 < 3 < 2 < 20 < 4 05/29/2001 1423 +/- 116 < 4 < 4 < 14 < 3 06/12/2001 1363 +/- 51 < 3 < 2 < 21 < 4 06/26/2001 1327 +/- 100 < 3 < 4 < 24 < 3 07/10/2001 1316 +/- 115 < 3 < 4 < 21 < 3 07/24/2001 1279 +/- 127 < 3 < 4 < 28 < 3 08/07/2001 1375 +/- 117 < 2 < 2 < 29 < 4 08/21/2001 1462 +/- 113 < 5 < 4 < 29 < 6 09/04/2001 1315 +/- 80 < 4 < 3 < 15 < 2 09/18/2001 1377 +/- 114 < 4 < 3 < 20 < 4 10/02/2001 1292 +/- 109 < 5 < 4 < 26 < 5 10/16/2001 1339 +/- 42 < 2 < 2 < 24 < 4 10/31/2001 1361 +/- 73 < 3 < 2 < 30 < 8 11/12/2001 1294 +/-45 < 2 < 1 < 21 < 5 11/26/2001 1312 +/- 138 < 3 < 5 < 12 < 5 12/10/2001 1387 +/- 117 < 4 < 3 < 15 < 4 MEAN 1362 +/- 106 3+/-+2 3+/- 2 20+/- 12 4 +/-_3 C - 15

TABLE VIII.1 QUARTERLY TLD RESULTS FOR LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF MILLI-ROENTGEN/STD. MONTH +/- 2 STANDARD DE VIATION*

STATION MEAN JAN-MAR APR-JUN JUL-SEP OCT-DEC CODE +/-2 S.D.

36S2 7.5 +/-1.4 6.7 +/- 1.2 7 ,0 +/- 0.6 8.1 +/-0.8 8.1 +/-0.3 36D1 7.0 +/-3.2 6.1 +/-0.6 5.7 +/-0.4 9.3 +/-6.2 6.8 +/- 0.4 2E1 7.3 +/- 1.4 6.7 +/-0.5 6.7 +/-0.6 7.6 +/- 0.8 8.2 +/-0.5 3S1 6.9 +/- 16 6.0 +/-0.0 6.5 +/-0.6 7.2 +/-0.9 7.9 +/-0.7 4E1 5.6 +/- 11 5.6 +/-0.5 5.1 +/-0.9 5.3 +/- 0.5 6.3 +/-0.0 5S1 7.9 +/-1.1 7.5 +/-0.3 7.4 +/- 0.3 8.0 +/- 0.8 8.6 +/- 0.6 5H1 8.7 +/-2.3 8.2 +/-0.5 8.0 +/-0.6 8.1 +/-0.4 10.3 +/- 1.1 6Cl 7.5 +/-2.5 70 +/-006 6.5 +/- 0.4 7.1 +/-1.2 9.4 +/-0.6 7S1 7.2 +/- 1.0 6.7 +/-0.6 7.1 +/-0.0 7.1 +/-0.9 7.9 +/-0.6 7E1 7.0 +/-1.7 6.3 +/-0.6 6.6 +/- 0.4 6.9 +/-0.6 8.2 +/-0.3 9C1 7.3 +/-2.6 6.4 +/-0.5 6.4 +/- 0.6 7.1 +/- 1.1 9.2 +/-0.9 10S3 7.5 +/-1.1 7.3 +/-0.8 7.0 +/-0.3 7.2 +/-0.9 8.3 +/-0.6 10E1 7.1 +/- 1.8 6.2 +/- 0.6 70 +/-1.3 6.7 +/-1.1 8.3 +/-0.4 10F3 7.2 +/-0.8 7.3 +/-2.9 6.8 +/-0.7 6.9 +/-0.6 7.7 +/-0.6 i1Si 8.4 +/-1.7 7.8 +/-0.7 7.7 +/-0.8 8.4 +/-1.4 9.5 +/-0.8 13S2 10.9 +/-1.3 10.5 +/-0.6 10.3 +/-0.8 11.1 +/-0.9 11.8 +/-0.9 13C1 6.7 +/-1.8 5.5 +/-0.4 4.9 +/-0.6 5.5 +/-0.6 7.0 +/-0.6 13E1 7.4 +/-1.8 7.4 +/-2.5 6.7 +/-0.5 6.8 +/- 1.0 8.7 +/-0.4 14S1 6.6 +/-1.1 6.2 +/-0.4 6.2 +/- 0.4 6.6 +/- 1.0 7.3 +/-0.6 15D1 75 +/-2.5 71 +/-0.5 6.7 +/- 0.9 70 +/-1,2 9.4 +/-0.9 16F1 7.3 +/-1.4 7.0 +/-2.6 6.5 +/- 0.8 7.3 +/- 0.8 8.2 +/-0.5 17B1 7.2 +/-2.4 6.6 +/- 0.6 6.2 +/- 0.4 7.0 +/-0.6 9.0 +/-1.5 18S2 7.9 +/-1 3 7.0 +/-1.1 7.9 +/-09 7.9 +/- 1.0 8.7 +/-0.8 19D1 6.7 +/-1.2 6.5 +/- 0.4 6.1 +/-0.8 6.5 +/-0.7 7.6 +/-0.4 20D1 6.8 +/-1.9 6.3 +/-0.3 6.0 +/-0.7 6.5 +/-0.7 8.2 +/-0.8 20F1 7.0 +/-2.3 6.3 +/-0.6 6.4 +/-0.5 6.6 +/-1.3 8.7 +/-0.6 21S2 6.6 +/-1.0 6.2 +/-0.4 62 +/-0.6 6.6 +/-0.9 7.3 +/-0.8 23S2 6.8 +/-0.8 6.8 +/-0.7 6.2 +/- 04 6.8 +/- 0.7 7.2 +/-0.9 24D1 6.4 +/-2.2 5.8 +/-1.1 5.8 +/- 0.4 5.9 +/-0.4 8.0 +/-0.4 25S2 6.3 +/-1.0 6.2 +/-0.8 5.8 +/-0.6 6-4 +/-0.5 6.9 +/-0.6 25D1 6-1 +/-2.0 5.6 +/-0.0 5.4 +/- 0.4 5 7 +/- 0.9 7.5 +/- 0.3 26S3 6-3 +/-1.2 5.8 +/-0.6 5.9 +/-0.7 6.6 +/-1.0 7.0 +/-0.6 28D2 6.7 +2.3 65 +/-0.4 5.8 +/-008 6.1 +/-0.3 8.4 +/-0.8 29S1 6.2 +/-0.9 5.8 +/-0.8 5-9 +/-0.3 6.5 +/-0.9 6.8 +/-0.3 29E1 7.1 +/-2.2 6.6 +/-0.4 6-2 +/-0.6 6.7 +/-0.6 8.7 +/-0.4 31S1 7.2 +/-1.3 6.9 +/-0.6 6.5 +/-04 8.0 +/-2.3 7.5 +/-0.3 31D1 8.8 +/-2.7 8.2 +0.7 7.9 +/- 0.6 8-1 +/-1.3 10.8 +/-09 31 D2 7.5 +/-20 7.3 +/-0.6 6.7 +/-0.6 7.1 +/-0.3 8.9 +/-0.0 34S2 7.4 +/-1.1 70 +/-0.4 7.0 +/-0.4 7.5 +/-0.9 8.2 +/-0.5 34E1 7.0 +2.5 66 +/-04 6.0 +/- 0.3 6.7 +/-1.1 8.9 +/-0.7 C - 16

TABLE C-VIII.2 MEAN QUARTERLY TLD RESULTS FOR THE SITE BOUNDARY, MIDDLE AND CONTROL LOCATIONS FOR LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF MILLI-ROENTGEN PER STD. MONTH +/- 2 STANDARD DEVIATIONS OF THE STATION DATA EXPOSURE SITE BOUNDARY MIDDLE CONTROL PERIOD JAN - MAR 6.9 +/- 2.3 6.6 +/- 1.3 8.2+/- 0.0 APR - JUN 6.9 +/- 2.2 6.3 - 1.3 8.0 +/- 0.0 JUL- SEP 7.5 +/- 2.3 6.8 +/-1.7 8.1 +/- 0.0 OCT- DEC 8.1 +/-2.5 8.3 +/- 1.9 10.3 +/- 0.0 TABLE C-VIII.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF MILLI-ROENTGEN/STD. MONTH LOCATION SAMPLES PERIOD PERIOD PERIOD MEAN PRE-OP MEAN ANALYZED MINIMUM MAXIMýUM +/- 2 S.D. +/-2 S.D.

SITE BOUNDARY 64 5.8 11.8 7.3 +/-2.5 7.6 + 2.4 MIDDLE DISTANTANCE 92 .9 .10.8 7.0 +/- 2.2 7.8 +/- 2.2 CONTROL 4 8.0 10.3 8.7 +/- 2.3 7.8-+/- 3 THE PRE-OPERATIONAL MEAN WAS CALCULATED FROM MONTHLY TLD READINGS 01/15/82 TO 12/02/94.

SITE BOUNDARY STATIONS- 36S2, 3S1, 5S1, 7S1,_1"0S3, 11S1, 13S2,14S1, 18S2, 21S2, 23S2, 25S2, 26S3, 29S1, 3181, 34S2 MIDDLE DISTANTANCE STATIONS - 36Dl, 2E1, 4El, 6C1, 7E1, 9C1, 10EI, 10F3, 13C1, 13E1, 15D1, 16F1, 1761, 19D1, 20D1, 20F1, 24D1, 25D1, 28D2,.29E1, 31!D1, 31D2, 34E1 CONTROL STATIONS - 5H1, 33H4, 18G1, 22G1, 32G1.

C-17

TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 SURFACE WATER (TRITIUM LIQUID SCINTILLATION)

SAMPLING PERIOD 10F2 1381 24S1 JAN-MAR 01/02 - 04/02/2001 0"1/02 - 04/02/2001 APR-JUN 04/02 - 07/02/2001 04/02 - 07/02/2001 04102 - 07/02/2001 JUL-SEP 07/02 - 10/02/2001 07/02 - 10/02/2001 07/02 - 10/02/2001 OCT-DEC 10/02 - 01/02/2002 10/02 - 01102/2002 10/02 - 01/03/2002 SURFACE WATER (GAMMA SPECTROSCOPY)

SAMPLING PERIOD 10F2 13B1 24S1 JAN 01/02 - 01/29/2001 01/02 - 01/29/2001 01/02 - 01/29/2001 FEB 01/29 - 0?226/2001 01/29 - 02/26/2001 MAR 02/26 - 04/02/2001 02/26 - 04/02/2001 APR 04/02 - 04/27/2001 04/02 - 04/27/2001 MAY 04127 - 05/29/2001 04/27 - 05/29/2001 04/27 - 05/29/2001 JUN 05/29 - 07/02/2001 05/29 - 07/02/2001 05/29 - 07/02/2001 JUL 07/09 - 07/30/2001 07/09 - 07/30/2001 07/09 - 07/30/2001 AUG 01130 - 08/30/2001 07/30 - 08/3012001 07/30 - 08/30/2001 SEP 08/30 - 10/02/2001 08/31 - 10/02/2001 08/31 - 10/02/2001 OCT 10/02 - 10/29/2001 10/02 - 10/29/2001 10/02 - 10/29/2001 NCV 10/29 - 12/04/2001 10/29 - 12/03/2001 10/29 - 12/03/2001 DEC 12/04 - 01/02/2001 12/03 - 01/02/2002 12/03 - 01/03/2001 DRINKING WATER (TRITIUM)

SAMPLING PERIOD 15F4 15F7 16C2 28F3 JAN-MAR 01/02 - 04i02/2001 01/02 - 04/02/2001 01/02 - 04/02/2001 01/02 - 04/02/2001 APR-JUN 04/02 - 07/02/2001 04/02 - 07/02./200 04/02 - 07/02/2001 04/02 - 07/02/2001 JUL-SEP 07!02 - 10/02/2001 07/02 - 10/02/2001 07/02 - 10/02/2001 07/02 - 10/02/2001 OCT-DEC 10/02 - 01/02/2002 10/02 - 01/02/2002 10/02 - 01/02/2002 10/02 - 01/02/2002 DRINKING WATER (GROSS BETA & GAMMA SPECTROSCOPY)

SAMPLING PERIOD I 5F4 15F7 16C2 28F3 JAN 01/02 - 01/29/2001 01/02 - 01/29/2001 01/02 - 01/29/2001 01/02 - 01/29/2001 FEB 01/29 - 02/26/2001 01/29 - 02/26/2001 01/29 - 02/26/2001 01/29 - 02/26/2001 MAR 02/26 - 04102/2001 02/26 - 04/02/2001 02/26 - 04/02/2001 02/26 - 0&4/02/2001 APR 04/02 - 04/27/2001 04/02 .- 04/27/2001 04/02- 04/27/2001 04/02 - 04/27/2001 MAY 04/27 - 05/29/2001 04/27 - 05/29/2001 04/27 - 05/29/2001 04/27- 05/29/2001 JUN 05/29 - 07/02/2001 05/29 - 07/02/2001 05/29 - 07/02/2001 05/29 - 07/02/2001, JUL 07/02 - 07/30/2001 07/02 - 07/30/2001 07/02 - 07/30/2001 07/02 - 07/30/2001 AUG 07/30 - 08/30/2001 07/30 - 08/30/2001 07/30- 08/30/2001 07/30 - 08/30/2001 SEP 08/30 - 10/02/2001 08/30 - 10/02/2001 08/30 - 10/02/2001 08/30 - 10/02/2001 OCT 10/02 - 10/29/2001 10/02 - 10/29/2001 10/02 - 10/29/2001 10/02 - 10/29/2001 NOV 10/29 - 12/04/2001 10/29 - 12/04/2001 10/29 - 12/03/2001 10/29- 12/04/2001 DEC 12/04 - 01/02/2002 12/04 - 01/02/2002 12/03 - 01/02/2002 12/04- 01 iO2/2002 C-18

TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 AIR PARTICULATE (GAMMA SPECTROSCOPY)

SAMPLING 10S3 11S1 14S1 13C1 22G1 PERIQOD JAN-MAR 01/01 - 04/02/2001 01/01 - 04/02/2001 01/01 - 04/02/2001 01/01- 042/02/2001 01/01 - 04/02/2001 APR-JUN 04/02 - 07/02/2001 04/02- 0710212001 04/02- 07/02/2001 JUL-SEP 04/02 - 07/0212001 04/02 - 07/02/2001 07/02 - 10/01/20o1 07/02'- 10/01/2001 07/02 - 10/01/2001 OCT- DEC 07/02 - 10/01/2001 07/02 - 10/01/2001 10/01 - 12/31/2001 10/01 - 12/31/2001 10/01 - 12/31/2001 10/01 - 12/31/2001 10/01 - 12/31/2001 AIR PARTICULATE (GROSS BETA AND 1-1311 SAMPLING 10S3 11S1 14S1 13CI 22G1 PERIOD 1301 22G1 1 01/02 - 01/08/2001 01102 - 01/08/2001 01/02 - 01/08/2001 2 01/08 -. 01/15/2001 01/02 - 01/08/2001 01/02 - 01/08/2001 01108 . 01/15/2001 01/08 - -01/15/2001 3 01/15 - 01/22/2001 01/15 - 01/22/2001 01/15 - 01/22/2001.

'01/08' ^01/15/2001' "01/08 - 61/15/2001 01/15 . 01/22/2001 01/15 - 01/22/2001 4 01/22 - 01/29/2001 01/22 - 01/2912001. 01/22 - 01/29/2001 01/22 - 01/29/2001 01122 - 01/29/2001 5 01/29 Z 02/05/2001 01/29 -02/05/2001 01/29 - 02/05/2001 01/29- 02/05/2001 01/29 - 02/05/2001 02/05 - 02/12/2001 02/05 02/12/2001 02/05 - 02/12/2001 02/05 - 02/12/2001 02/05 - 02/12/2001

7. 02/12 - 02/19/2001 02/12 . 02/19/2001 02/12 - 02/19/2001 8 02/12 - 02/19/2001 02/12 - 02/1912001 02/19 - 02/26/2001 02/19 -. 02/26/2001 02/19 - 02/26/2001 *02/19 - 02/26/2001 9 02/26 - 03/05/2001 02/19 - 02/26/2001 02/26 " 03/05/2001 02/26 - 03/05/2001. 02/26 0-3/05/2001 02/26 - 03/05/2001 10 03/05 - 03/12/2001 03/05 - 03/12/2001 03/05 - 03/12/2001 03/05 - 03/12/2001 03/05 - 03/12/2001 11 03/12 - 03/19/2001 03/12 03119/2001 03/12 - 03/19/2001 03/12 - 03/19/2001 03/12 - 03/19/2001 12 "03/i19 - 03/26/2001 03/19 - 03/26/2001 03/19 - 03/26/2001 13 03/26 - 04/02/2001 '03/19 -. 03/26/2001 03/19 - 03/26/2001 03/26' -. 04/02/2001 03/26 - 04/02/2001 03/26 - 04/02/2001 14 04/02 - 04/09/2001 03/26 - 04/02/2001 04102 - 04/09/2001 04102 - 04/09/2001 .04102 -. 04/09/2001 15 04/09 - 04/16/2001 04/02 - 04/09/2001 04/09 -04116/2001 04/09 - 04/16/2001 04/09- 04/16/2001 16 04109 - 04/16/2001 04/16 - 04/23/2001 04/16- 041/23/ý001 04/16 - 04/23/2001 04/16 - 04/23/2001 04116 - 04/23/2001 17 "04/23 - 04/30/2001 04/23 - 04/30/2001 04/23 - 04/30/20O1 04/23 - 04/30/2001 04/23 - 04/30/2001 18 04/30 - 05/07/2001 04/30 - 05/07/2001 04/30 - 05/07/2001 04/30 - 05/07/2001 04/30 - 05/07/2001 19 05/07 - 05/14/2001 05/07 - 05/14/2001 05/07 - 05/14/2001 05/07 - 05/14/2001 05/07 - 05/14/2001 20 05/14 - 05/21/2001 21 05/14 - 05/21/2001 05/14 - 05/21/2001 05/14 ,.*,05/21/2001 "05/14 - 05/21/2001 05/21 - 05/29/2001 05/21 - 05/29/2001 05/21 - 05/29/2001 05/21 - 05/29/2001 05/21 - 05129/2001 22 05/29 - 06/03/2001 05/29 - 06/03/2001 05/29 - 06/03/2001 05/29 - 06/03/2001 O5/29 - 06/03/2001 23 06/03 - 06/11/2001 06/03 - 06/11/2001 06/03 - 06/11/2001 06/03- 06/11/2001 _.6/03 . 06/11/2001 21 06/11 - 06192o1:- -- 6/1V - o6/192o0E;O . 0/1 0.19/2oo1" 25 06/19 - 06/25/2001 " 08/l11 0&/19/2001 06/11 - 06/19/2001 06/19 - 06/25/2001 06/19 -P6/25/2001 09&19 -W06r2O2l 26 06/25 - 07/02/2001 '06/25 - 07102/2001 06/19 - 0612512001 06/25 07/02/2ool 06/25 - 07/02/2001 27 07/02 - 07/09/2001-, 06/25 - 07/02/2001 07/02 :- 07/09/2=01' 07/02 - 07/09/2001 07/02 - 0709/2001 28 07/09 - 07/16/2001 07/02 - 07/09/2001 07/09 ' 07/16/2001,. 07/09 - 07116/20O1 07/019 - 07W16/2001 29 07/16 - 07/23/2001 07109 - 07/16/2001 07/16 - 07/23/2001 07/16 - 07/23/2001 07/16 - 07/23/2001 30 07/16 - 07/23/2001 07/23 - 07/30/2001 07123 - 07/30/2001 07/23 - 07130/2001 07/23 - 07/30/2001 07/23 - 07/30/2001 31 07/30 - 08/06/2001 07/30 - 08/06/2001 07/30 - 08/06/2001 07/30 - 08/06/2001 07/30 - 08/06/2001 32 08/06 - 08/13/2001 08/06 - 08/13/2001 08/06 - 08/13/2001 08/06 - 08/13/2001 08/06 - 08/13/2001 33 08/13 - 08/20/2001 08/13 - 08120/2001 ,08Ly a- 08/20/2001 S t08/13 L' 08120/2001 08/13 - .8/20/2001 34 08/20 - 08/27/2001 08/20 - 08/27/2001 08/20- 08/27/2001 08/20 - 08/27/2001 08/20 - 08/27/2001 35 08/27 - 09104/2001 08/27 - 09/04/2001 08/27 - 09/0412001 08/27 - 09/04/2001 08/27 - 09/04/2001 36 37 09/04 - 09/11/2001 o0/11 - 09/11/idO'""

09/04 - 09/11/2001 09/04 - 0911/2001 S...09*'1...- 09/11/2001.. .. 09/04 - 09/-1142/001 I ..- .f~// '1: :09/11. -09/*172001 "09611 - 09/17/2001 38 09/11 - 09/17/2001 09/17 - 09/24/2001. , 09/17.- 09124/2001. .09/17 - 09/24/2001 09/17 - 09/24/2001 39 09/24 - 10/01/2001" 09/17 - 09/24/2001 09/24' - 10/01/2001 - 09/24 - 1.0/0Q1/2001 09/24 - 10/0112001 40 10101 - 10/08/2001 09/24 - 10/01/2001

-I/01.-10"/08/2001 b10/01- 10/08/20'01 10/1- 10/08/2001 41 10/08 - 10/15/2001 10/01 - 10/08/2001

. 10/08 .1011512001- .1.-0/08 -' 10/15/2001 10/08 - 10/15/2001 42 10/15 - 10/22/2001 10/08 - 10/15/2001 10/15 - .10/22/2001 10/15 - 10/22/.2001 10/15 - 10/22/2001 43 10/22 - 10129/2001 10/15 - 10/22/2001 10/22 - 10/29/2001 10J22 - 10/29.2001 10/22 - 10129/2001 44 10/296 11/05/2001 10/22 - 10/29/2001 10/29 - 11/05/2001 10/29 - 11/05/2001 10/29 - 11/05/2001 45 11/05 - 11/12/2001 10/29 - 11/05/2001 11/05.- 11/12/2001, 11/05 1 11/12/2001 11/05 - 11/12/2001 11/05 - 11/12/2001 46 11/12 - 11/19/2001 11/12- .11/19/2001 11/12 - 11/19/2001 11/12 - 11/19/2001 11/12 - 11/19/2001 47 11/19 - 11/26/2'001 11/19 - 1.1/26/2001. 11/19- 11/26/2001 .11/19 - 11/26/2001 11119 - 11/26/2001 48 11/26 - 12103/2001 11/26.- 12/03/2001 11/26 - 12/03/2001 11/26 - 12/03/2001 11/26 - 12/03/2001 49 12/03 - 12/ 10/2001 12103 - 12/10/2001 12/01 - 12/10/2001 12/03 - 12/10/2001 12/03 - 12/10/2001 50 12/10 - 12/17/2001 12/10 -112/17/2001 12/10 - 12/17/2001 12/10 - 12/17/2001 12/10 - 12/17/2001 51 12/17 - 12/24/2001 12/17 - 12/24/2001 12117 - 12/24/2001 12/17 - 12/24/2001 12/17- 12/24/2001 52 12/24 - 12/31/2001 12/24 - 12/31/2001 12/24 - 12/31/2001 12/24- 12/31/2001 12/24 - 12/31/2001 C-19

TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 TLD STATION JAN-MAR APR-JUN JUL-SEP OCT-DEC CODE CODE 36S2 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 36D1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 2E1 01/02/2001 - 04/04/2001 0-104/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 3S1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 4E1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 5S1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 5H1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 6C1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 7S1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 7E1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 9Cl 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 10S3 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 10E1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 10F3 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 1isi 01/02/2001 - 04/04/200; 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 13S2 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 13C0 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 13E1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 14S1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 15D1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 16F1 01/02/2001 - 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 17B1 01/02/2001 - 04/04i2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 18S2 01/02/2001 04/04/200 1 04/04/2001 - 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 19D1 01/02/2001 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 - 10/03/2001 10/03/2001 - 01/02/2002 20D1 01/02/2001 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 10/03/2001 10/0312001 - 01/02/2002 20F1 01/02/2001 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 21S2 01/02i2001 04/04/2001 04/04/2001 - 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 23S2 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 01/02/2002 24D1 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 25S2 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 25D1 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 26S3 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 28D2 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 01/02/2002 29S1 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 29E1 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 31S1 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 31DI 01/0212001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2901 - 01/02/2002 31 D2 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 34S2 01/02/2001 04/04/2001 04/04/2001 07/03/2001 07/03/2001 10/03/2001 10/03/2001 - 01/02/2002 34E1 01/02/2001 - 04/04/2001 04/04/2001 07102/2001 07/03/2001 - 10/03/2001 10/03/2001 01/02/2002 C - 20

MEAN MONTHLY INSOLUBLE GROSS FIGURE C-1 BETA CONCENTRATIONS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 2001 6

4 1...

0 2

0 0

-2 82 83" 84 85 86 87 88 89 90 91 92 YEAR LGS CRITICALITY UNIT NO. 1: 12/22/84 UNIT NO. 2: 08/11/89

CD 0-:1 0

LLI 0

LL Ld

!04!1/!od III

FIGURE C-2 MEAN MONTHLY SOLUBLE GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 2001 25 20 1....

15 S- --'-INDICATOR ,*

lo.

0

-5 82 83 84 85 86 87 88 89 90 91 92 YEAR LGS CRITICALITY UNIT NO. 1: 12/22/84 UNIT NO. 2: 08/11/89

FGURE C-2 (cont.)

25 20 15 CONTROL INDICATOR L

10

0. I I A

MAW \

5 4"i *YI\I.A..

I 0

-5 93 94 95 96 97 98 99 00 01 YEAR

FIGURE C-3 MEAN ANNUAL CS-137 CONCENTRATIONS IN FISH SAMPLES COLLECTED INTHE VICINITY OF LGS, 1982 - 2001 1 5 . . . . . ... . . . . ... . . .7. .. . .. . . .... . . . .. . . . . . .. . ....

15GC

: -*-20S1I 10 .... .... . ....... ..... ..... . ...... ...... . .. *.-. ------- .. . ..

E 0: .. .

O~.

C-) ,.. ..... ..... ------.....

LGS CRITICALITY

LGSUCRITICAI NNote:

UNIT NO. 1: TY 12/22184 Second half of 2000 UNIT NO. 2: 08/11/89 switched to reporting < MDA when no activity was detected.

Using MDA values result in a larger number.

-5 82 83 84 85 86 87 88 `89' 90 91 92 93 94 95 96 97 98 99 00 01 CONTROL = 29C1 YEAR Station 20S1 discontinued in 1995

FIGURE C-4 CONCENTRATIONS OF CS-137 IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 2001 1400 1200 1000 800 E

600 0

0, CL 400 200 0

-200 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 LGS CRITICALITY Year UNIT NO. 1: 12/22/84 UNIT NO. 2: 08/11/89 CONTROL = 33A2

FIGURE C-5 MEAN MONTHLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 2001 150 135 120 Chernobyl -u-Group I 105

- '--Group I1 90 Group III S75 C. 60 WLG CRITICALITY SUNIT NO. 1: 12/22/84 S.UNIT NO. 2: 08/11/89 ..

45 30 15 0

82 . 83 84 85 86 87 88 . 89 90 91 92 YEAR

FIGURE C-5 (cont.)

150 135 123 105 90 75 C.,

Lu 60 45 30 15 0

93 94 95 96 97 98 99 00 01 YEAR

FIGURE C-6 MEAN WEEKLY GROSS BETA CONCENTRATIONS INAIR PARTICULATE SAMPLES COLLECTED INTHE VICINITY OF LGS, 2001 "50 GROUP I

-- GROUP 11 40 GROUP III E 3 20-4 8 2 16 20 2 2 I I I I4 4 8 12 16 20 24 28 32 36 40 44 48 52 WEEK NO.

FIGURE C-7 MEAN QUARTERLY AMBIENT GAMMA RADIATION LEVELS (TLD)

INTHE VICINITY OF LGS, 1985 - 2001 13 12 11 6

E 10

-6 9 4

85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 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

TABLE D-I.1 CONCENTRATIONS OF GROSS BETA INSOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/-2 SIGMA COLLECTION 16C2 PERIOD JAN -0.1 +/- 0.5 FEB -2.0 +/- 0.6 MAR 3.2 +/- 0.1 APR -1.2 +/- 0.5 MAY 0.2 +/- 0.4 JUN 0.1 +/- 0.4 JUL -0.1 +/-0.5 AUG 0.0 +/- 0.5 SEP 0.3 +/- 0.4 OCT 0.2 +/- 0.5 NOV 0.1 +/- 0.5 DEC 2.0 +/- 2.0 MEAN 0.2 +/- 2.6 TABLE D-1.2 CONCENTRATIONS OF GROSS BETA SOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- SIGMA COLLECTION 16C2 PERIOD JAN 2.8 +/-0.7 FEB 3.0 +/-1.0 MAR 1.5 +/-0.7 APR 1.8 +/-0.9 MAY 4.0 +/-1.0 JUN 5.0 +/-1.0 JUL 3.0 +/-1.0 AUG 4.0 +/-1.0 SEP 5.0 +/-1.0 OCT 6.0 +/-1.0 NOV 5.0 +/-1.0 DEC 4.0 +/-1.0 MEAN 3.8 +/-2.8 D-2

TABLE D-I.3 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED THE VICINITY OF LIMERICK GENERATING STATION, IN 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA STC SAMPLING MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-95 NB-95 CS-134 08-137 BA-140 PERIOD LA-140 16C2 JAN < 3.0 < 2.0 < 6 < 2.0 < 6 < 5.0 < 3.0 < 3.0 <

FEB < 3.9 < 2.0 < 10 < 2.0 3.8 < 8 < 3.8 < 8 < 6.8 < 4.2 < 3.7 MAR < 5.2 < 4.1 < 18 < 6.3

< 5.2 < 11 < 4.9 < 12 < 8.9 < 5.3 APR < < 5.5 < 5.4 < 28 3.3 < 3.2 < 7 < < 9.0 2.9 < 7 < 5.5 < 3.2 MAY < 3.1 < 3.2 < 19

< 3,7 < 3.8 < 7 < 5.9

< 3.3 < 7 < 6.7 < 3.7 < 3.6 < 3.7 JUN < 3.0 < 3.2 < 16 < 5.7

< 6 < 2.9 < 7 < 5.0 < 2.9 < 3.0 JUL < 5.2 < 3.1 < 13 < 4,3

< 5.2 < 11 < 5.1 < 11 < 8.7 < 5.4 <

AUG 5.0 < 5.4 < 21 <

< 6.6 < 6.6 < 14 6.6

< 5.8 < 16 < 11.2 5.3+/-2.4 < 7.6 < 6.9 <

SEP < 3.2 < 3.1 < 6 31 < 10.1

< 2.9 < 6 < 5.2 < 2.9 < 2.9 < 3.2 <

OCT < 5.0 < 5.3 13 < 4.0

< 10 < 4.5 < 12 < 8.5 < 5.0 < 5.5 <

NOV < 4.8 < 5.1 < 4.9 < 25 < 8.3 10 < 4.5 < 10 < 7.9 < 4.6 < 5.2 < 5,0 DEC < 3.9 < 4.2 < 25 < 8.3

< 8 < 3.7 < 8 < 7.0 < 3.9 < 3.8 < 4.2 < 22 < 7.1 MEAN 4.2+/-2.2 4.2+/-2.6 8 +/-5 3.9+/- 2.2 9 +/-6 7.2 +/- 3.8 4.1 +/-:2.0 4.3+/-2.9 4.3-+/-2.7 20 +/- 13 6.5+/-4.6 D-3

TABLE 11.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF E-3 PCI/CU +/- 2 SIGMA WEEK NO. 11S2 1 21 +/- 4 2 27 +4 3 18 +/-3 4 19 +4 5 17 +/-3 6 14 +3 7 24 +/-4 8 20 +/-3 9 21 +3 10 12 +/-3 11 9 +/-3 12 12 +3 13 9 +3 14 10 +/-3 15 5 +3 16 16 +3 17 17 +3 18 22 +/-3 19 15 +3 20 8 +/-3 21 3 +/-2 22 7 +4 23 13 -3 24 17 -3 25 17 -3 26 18 +/-3 27 11 _3 28 43 _4 29 41 +/-4 30 10 +/-3 31 16 -3 32 29 _4 33 21 +/-4 34 22 +/-3 35 16 -3 36 19 +3 37 17 _4 38 27 +4 39 9 +3 40 26 -4 41 10 +3 42 20 -3 43 14 -3 44 20 -3 45 19 +3 46 34 +4 47 18 -3 48 25 +/-4 49 29 _4 5o 24 +/-4 51 20 +/-3 52 24 +/-4 MEAN 18 +/- 16 D-4

TABLE D-II.2 CONCENTRATION OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LWMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION PERIOD Be-7 Mn-54 Co-58 Co-60 Cs- 134 Cs-137 11S2 01/01 - 04'02/01 63 +/-7 :< 0.9

1.4 < 0.8 < 0.9 < 0.8 04/02 - 07/02/01 129 +/-8 < 0.7 < 1.0

0.6 < 0.6 < 0.5 07/02- 10/01/01 71 +5 < 0.4 < 0.5 < 0.5 < 0.3 < 0.3 10/01 - 12/31/01 61 +4 < 0.5 < 06 < 0.5 < 0.5 < 0.6 MEAN 82 +/- 63 0.6 +/- 0.4 0.9 +/-0.8 0.6 +/-0.3 0.6 +/-0.5 0.5 +/-0.4 D-5

TABLE D.III.1 CONCENTRATION OF 1-131 BY CHEMICAL SEPARATION AND GAMMA EMITTERS IN MILK SAMPLES COLLECTED- IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA STC PERIOD. 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 19BI 01/09/2001 < 0.39 1500+/- 100 < 3 < 3 < 20 < 4 04/03/2001 0.07+/- 0.08 1333+/- 81 < 3 < 6 < 20 < 6 07/10/2001 < 0.1 1200+/- 80 < 4 < 4 < 14 < 4 10/02/2001 -0.02+/- 0.16 1270+/- 64 < 5 < 4 < 14 < 4 MEAN 0.13+/- 0.36 1326+/- 256 4+/- 2 4+/- 2 17+/- 7 5+/- 2 21 B1 01/09/2001 < 0.47 1500+/- 100 < 4 < 3 < 20 < 5 04/03/2001 0.05+/-_0.16 1420+/- 76 < 3 < 4 < 21 < 6 07/10/2001 < 0.2 1330+/- 80 < 4 < 4 < 14 < 4 10/02/2001 0.02+/-_0.14 1280+/-59 < 4 < 4 < 29 < 9 MEAN 0.18+/- 0.41 1383+/- 195 4+/- 1 4+/- 1 21+/- 12 6+/- 4 9G1 01/09/2001 < 0.4 1500+/- 100 < 2 < 3 < 10 < 3 04/03/2001 0.09+/-0.13 1300+/-_64 < 3 < 3 < 16 < 5 07/10/2001 < 0.1 1370+/-_111 < 5 < 6 < 21 < 7 10/02/2001 -0.05+/-_0.11 1170+/-_61 < 5 < 4 < 17 < 6 MEAN 0.13+/- 0.38 1335+/- 275 4+/- 3 4+/- 3 16+/- 9 5+/- 3 D-6

TABLE D-IV.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 2001 DRINKING WATFR (GROSS RFTA & GAMMA SPECTROSCOPY)

COLLECTION 16C2 PERIOD JAN 01/02/2001 - 01/29/2001 FEB 01/29/2001 - 02/26/2001 MAR 02/26/2001 - 04102/2001 APR 04/02/2001 - 04/27/2001 MAY 04127/2001 - 05/29/2001 JUN 05/29/2001 - 07/02/2001 JUL 07/02/2001 - 07/30/2001 AUG 07/30/2001 - 08/30/2001 SEP 08/30/2001 - 10/02/2001 OCT 10/02/2001 - 10/29/2001 NOV 10/29/2001 - 12/03/2001 DEC 12/03/2001 - 01/02/2002 AIR PARTICULATF (GAMMA SPFCTROSCOPY)

COLLECTION pF=RIh,'fr 11R';q PERIOD '

JAN-MAR 01/01/2001 - 04/02/2001 APR-JUN 04/02/2001 - 07/02/2001 JUL-SEP 07/02/2001 - 10/01/2001 OCT-DEC 10/01/2001 - 12/31/2001 AIR PARTICIUL ATE (GROSS RFTA)

COLLECTION C0LLECTIOP PFRIfI"D 11R52 11S2 PERIOD 11S2 PERIOD 1 01/02/2001 - 01/08/2001 27 07/02/2001 - 07/09/2001 2 01/08/2001 - 01/15/2001 28 07/09/2001 - 07/16/2001 3 01/15/2001 - 01/22/2001 29 07/16/2001 - 07/23/2001 4 01/22/2001 - 01/29/2001 30 07/23/2001 - 07/30/2001 5 01/29/2001 - 02/05/2001 31 07/30/2001 - 08/06/2001 6 02/05/2001 - 02/12/2001 32 08/06/2001 - 08/13/2001 7 02/12/2001 - 02/19/2001 33 08/13/2001 - 08/20/2001 8 02/19/2001 - 02/26/2001 34 08/20/2001 - 08/27/2001 9 02/26/2001 - 03/05/2001 35 08/27/2001 - 09/04/2001 10 03/05/2001 - 03/12/2001 36 09/04/2001 - 09/11/2001 11 03/12/2001 - 03/19/2001 37 09/11/2001 - 09/17/2001 12 06/19/2001 - 03/26/2001

38 09/17/2001 - 09/24/2001 13 03/26/2001 - 04/02/2001 39 09/24/2001 - 10/01/2001 14 04/02/2001 - 04/09/2001 40 10/01/2001 - 10/05/2001 15 04/09/2001 - 04/16/2001 41 10/08/2001 - 10/15/2001 16 04/16/2001 - 04/23/2001 42 10/15/2001 - 10/2"2/2001 17 04/23/2001 - 04/30/2001 43 10/22/2001 - 10/29/2001 18 04/30/2001 - 05/07/2001 44 10/29/2001 - 11/05/2001 19 05/07/2001 - 05/14/2001 45 11/05/2001 - 11/12/2001 20 05/14/2001 - 05/21/2001 46 11/12/2001 - 11/19/2001 21 05/21/2001 - 05/29/2001 47 11/19/2001 - 11/26/2001 22 05/29/2001 - 06/03/2001 48 11/26/2001 - 12/03/2001 23 06/03/2001 - 06/11/2001 4S 12/03/2001 - 12/10/2001 24 06/11/2001 - 06/19/2001 50 12/10/2001 - 12/17/2001 25 06/19/2001 - 06/25/2001 51 12/17/2001 - 12/24/2001 26 06/25/2001 - 07/02/2001 52 12/24/2001 - 12/31/2001 D-7

FIGURE D-1 COMPARISON OF MONTHLY INSOLUBLE GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES SPLIT BETWEEN ENV AND TBE, 2001 5

4 3

2 1..

CL 1

0

-1

-2 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec MONTH

FIGURE D-2 COMPARISON OF MONTHLY SOLUBLE GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES SPLIT BETWEEN ERLIENV AND TBE, 2001 7

--- ENV 6 ---- TBE 5C ii' \

II

\ /

0

\

2 0

- -I -I Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec MONTH

FIGURE D-3 COMPARISON OF WEEKLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED FROM LGS CO-LOCATED LOCATIONS 11S1 AND 11S2, 2001 50 40 - 11S2-TBE :: .

30o 0

1 .4 7 10 13 16 19 22 25 28 31 34 37 40 43 46' 49 52 WEEK NO.

UI [~if APPENDIX E INTER-LABORATORY COMPARISON PROGRAM

Table E-1 DOE EML Cross Check Program Results for Environmental, Inc., 2001 Environmental, Inc. DOE EML Collection Value Uncertainty Value Min Max Agreement Date Media Nuclide (B &E) (C & E) (D & E) Ratio Ratio (F)

(A) 3/2001 Air Filter Co-60 20.110 0.160 19.440 0.79 1.30 YES Cs-134 2.710 0.150 2.830 0.74 1.21 YES Cs-137 9.860 0.230 8.760 0.78 1.35 YES Mn-54 7.250 0.220 6.520 0.80 1.36 YES Sr-90 7.410 0.150 7.100 0.55 2.05 YES Gr Beta 2.300 0.020 2.580 0.76 1.52 YES 3/2001 Soil Ac-228 45.600 4.000 42.700 0.80 1.50 YES Bi-212 53.200 3.100 42.000 0.45 1.23 NO Bi-214 42.100 S4(G) 7.700 32.600 0.78 1.50 YES Cs-137 1772.600 79.800 1740.000 0.80 1.29 YES K-40 583.800 52.600 468.000 0.80 1.37 YES Pb-212 46.600 8.500 41.500 0.74 1.36 YES Pb-214 45.300 8.600 34.300 0.76 1.53 YES Sr-90 55.600 2.200 69.000 0.61 3.91 YES 3/2001 Vegetation Co-60 28.500 2.100 30.400 0.75 1.51 YES Cs-137 795.500 76.400 842.000 0.80 1.37 YES K-40 592.600 42.500 603.000 0.78 1.43 YES Sr-90 1239.600 !30.000 1330.000 0.52 1.23 YES 3/2001 Water Co-60 97.000 0.800 98.200 0.80 1.20 YES Cs-137 70.100 4.000 73.000 0.80 1.24 YES H-3 76.500 5.500 79.300 0.74 2.29 YES Sr-90 3.850 0:130 4.400 0.64 1.50 YES Gr Beta 1246.400 31.100 1297.000 0.56 1.50 YES 9/2001 Soil Ac-228 68.100 1.400 59.570 0.80 1.50 YES Bi-212 65.100 1.600 62.067 0.45 1.23 YES Bi-214 47,300 4.700 36.900 0.78 1.50 YES Cs-137 659.200 10.800 612.330 0.80 1.29 YES K-40 737.700 16.600 623.330 0.80 1.37 YES Pb-212 64.700 3.800 58.330 0.74 1.36 YES Pb-214 53.700 7.700 39.670 0.76 1.53 YES Sr-90 27.400 6.300 30.596 0.61 3.91 YES E-1

Table E-1 DOE EML Cross Check Program Results for Environmental, Inc., 2001 Collection Datee (A) Environmental, Inc.

(C &E)

Uncertainty DOE ML (DValue

& E) Min Ratio Max 9/2001 Water Ratio Agreement Co-60 (F) 206.700 4.700 Cs-1 37 209.000 0.80 1.20 46.600 0,800 YES H-3 254.100 45.133 0.80 1.24 3.600 207.000 YES Sr-90 4.100 0.74 2.29 YES Gr Beta 0.300 3.729 9/2001 8461.000 064 1.50 YES Air Filter Co-60 206.000 7970.000 16.900 - 0.56 1.50 YES 0.300 17.500 Cs-134 11,800 0.79 1.30 YES Cs-137 0.200 12.950 18,300 0.300 0.74 1.21 YES Mn-54 85.400 17.100 0.78 1.35 Sr-90 1.300 81.150 YES 3.110 0.80 1.36 YES Gr Beta 0.060 3.481 9/2001 Vegetation 13.800 0.100 0.55 2.05 YES Co-60 40.200 0.900 12.770 0.76 1.52 YES 35.300 0.75 1.51 YES Cs-137 1184.000 K-40 2.800 1030.000 1023.000 44.100 0.80 1.37 YES Sr-90 1364.0000 898.670 0.78YES 18.400 1612.800 0.52 1.23 YES A. Only analyses performed routinely for the REMP are inclurl 0

C. The I ne Environmental, E-nvironmental, Inc.

Inc. uncertainty value is the ismean of 1 or 3 measurements/determinations.

the 2-sigma counting uncertainty for one determination D. The DOE EML value is the mean and one standard deviation for three determinations.

E. Reporting units are Bq/L for of replicate determinations for each water, Bq/kg (dry) forý soil, Bq/kg (wet) radionuclide.

for vegetation and total Bq for air filters.

F. The EML control limitswithin (min the ratiocontrol value falls and max ratio) limits. are established by DOE EML.

G. This naturally-occurring radionuclide is present in the shield background. Acceptable agreement is achieved if the ratio of the Environmental, No follow-up actions were performed Inc. value divided by the DOE and the subject result was just outside because all of the other gamma scan of the upper control limit. results were acceptable The control limit concept was established from percentiles of development of the control limits historic data distributions (1982.

are presented in DOE report EML-564. -1992). The evaluation of this historic The control limits listed in this table data and the of data distributions for the years were developed from percentiles 1993 - 1999.

E-2

Table E-2 ERA Statistical Summary Proficiency Testing Program for Environmental, Inc., 2001 I Environmental.,

I I" ERA Expected Nuclide ERA Deviation from ERA (A) Inc. Result (pCi/L) Known Value Performance Date 'Media Known Control Limits Evaluation (B) Ci/L) (D) 1/2001 (Ci/L (C) (Ci/L) D) (E)

Water Gr Beta 25.3 16.7 5.0 8.0-25.4 2/2001 A Water I4131 27.2 28.3 3.0 23.1-33.5 A 3/2001 ' tWater H-3 17,400 17,800 1780.0 14,700.0-20,900.0 A 4/2001 Water Co-60 27.9 26.4 5.0 17.7-35.1 A CS-1 34 16.0 16.9 5.0 8.2-25.6 A Cs-137 195.4 186.0 9.3 170.0-202.0 A Gr Beta - 343.0 340.0 51.0 252.0-428.0 A Sr-89 62.8 64.1 5.0 55.5-72.8 A Sr-90 34.2 33.8 5.0 25.1-42.5 6/2001 Water A Ba-1 33 37.8 36.0 5.0 27.3-44.7 A Co-60 49.9 46.8 5.0 38.1-55.5 A Cs-134 16.0 15.9 5.0 7.2-24.6 A Cs-1 37 208.0 197.0 9.9 180.0-214.0 A Zn-65 37.8 36.2 5.0 27.5-44.9 7/2001 Water A Sr-89 19.8 31.2 5.0 22.5-39.9 NA(F)

Sr-90 26.3 25.9 5.0 17.2-34.6 A Gr Beta 48.5 53.0 10.0 35.7-70.3 8/2001 Water H-3 2,680.0 2,730.0 A

L H-3 I. 356.0 2,110.0-3,350.0 2,680.0 2,730.0 A E-3

Table E-2 ERA Statistical Summary Proficiency Testing Program for Environmental, Inc.. 2001 DateNljd Nuclidea.

Inc. Result (pCi/L)

Environmental., KnownERA RValue Deviation Date ERAKnown Expected from ERA ContrLimits Performance Media (A) Evaluation (B) (pCi/L) (C) (pC/L) (D) 10/2001 Water C Ci/L)(i0va (E) 1-131 7.7 7.7 2.0 4.2-11.2 A Co-60 82.4 78.4 5.0 69.7-87.1 A Cs-134 52.2 54.1 5.0 45.4-62.8 A Cs-137 39.4 37.9 5.0 26.3-43.7 A Gr Beta 166.0 192.0 28.8 142.0-242.0 A Sr-89 12.8 16.7 5.0 8.0-25.4 A Sr-90 6.8 7.7 5.0 -1.0-16.4 A Gr Beta 26.0 21.5 5.0 12.8-30.2 11/2001 A Water Ba-133 66.7 69.3 6.9 57.5-81,1 Co-60 A 59.3 59.7 5.0 51.0-68.4 Cs-134 86.7 93.9 A 5.0 85.2-103.0 A Cs-137 45.0 42.0 5.0 33.3-50.7 A Zn-65 80.7 77.3 7.7 63.9-90.7 A A. Only analyses performed routinely for the RFMP - ,,,^ .

C.

B. The ERA Environmental, Inc.is result is -- u .. ,Un ris table. -.. I.

known value equal to the mean 100% of for the three measurements/determinations.

parameter present in the standard as determined measurements made during standard by gravimetric and/or volumetric D-Established per the guidelines contained preparation.

E. in the EPA's National Standards for A= Acceptable - Reported Result falls Water Proficiency Testing Criteria Document, within the Control Limits. December 1998 as applicable.

NA = Not Acceptable - Reported Result F. A reanalysis was performed; the result falls outside of the Control Limits.

was 35.3 +/- 4.4 pCi/L which was within the established control limits.

E-4

TABLE E-3 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING (TBE) ENVIRONMENTAL SERVICES, 2001 Identification Reported Known Ratio Month/Year Number Matrix Nuclide Units Value Value TBE/Analytics March, 2001 E2584-93 Milk Evaluation 1-131 pCi/L 75 77 0.97 A Ce-1 41 166 162 1.03 A Cr-51 433 418 1.04 A Cs-134 212 223 0.95 A Cs-137 165 176 0.94 A Co-58 81 82 0.99 A Mn-54 172 175 0.98 A Fe-59 151 146 1.03 A Zn-65 314 322 0.98 A Co-60 254 254 1 A June, 2001 2707 -Charcoal 1-131 pCi 104.5 2708 81 1.29 W Charcoal 1-131 pCi 84.8 72 1.18 A 2709 Charcoal 1-131 pCi 99.6 92 1.08 A 4,ugust, 2001 E2757-369 1AP Filters Fe-55 Total pCi 71 83 0.86 A Cr-51: Total pCi 100 90 1.11 A Mn-54 Total pCi 161 134 1.20 A Co-58 Total pCi 72 66 1.09 A Fe-59 Total pCi 64 49 1.31 A Co-60 Total pCi 148 128 1.16 A Zn-65 Total pCi 200 158 1.27 W Cs-1 34 Total pCi 109 125 0.87 Cs-137 Total pCi A Total pCi 140 116 1.21 Ce-141 74 A 79 1.07 L Toa 74 A E-5

TABLE E-3 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING (TBE) ENVIRONMENTAL SERVICES, 2001 I - -

Identification Reported Known Ratio Month/Year Number Matrix Nuclide Units Value Value August, 2001 E2755-396 I TBE/Analytics Evaluation Milk Mn-54 pCi/L 131 124 1.06 Co-58 A pCi/L 68 68 1.00 Fe-59 A pCi/L 53 50 1.06 Co-60 A pCi/L 134 132 1.02 Zn-65 A pCi/L 172 162 1.06 1-131 A pCi/L 76 86 0.88 Cs-1 34 A pCi/L 141 128 1.10 Cs-137 A pCi/L 126 120 1.05 Ce-141 72 76 A pCi/L 0.95 A September, 2001 A14734-148 Liquid Sr-89 Total uCi 1.30E-03 1,55E-03 0.84 Sr-90 A Total uCi 1 .OOE-04 1.12E-04 0.89 A September, 2001 A14735-148 Gas Xe-133 Total uCi 0.606 0.585 1.04 Kr-85 Total uCi 8.53 8.42 A 1.01 A September, 2001 TA1476-ý148 ýCh~arcoalý 1-131 ý T~otal uCii 0.483ý 0.4509 A

September, 2001 A14737-148 Air Filter Ce-141 Total uCi 4.99E-02 5.25E-02 A 0.95 Cr-51 Total uCi 1.68E-01 1.85E-01 0.91 A Cs-134 Total uCi 2.47E-02 2.97E-02 0.83 A Cs-137 Total uCi 5.18E-02 5.73E-02 0.90 A Co-58 Total uCi 4.60E-02 4.75E-02 0.97 A Mn-54 Total uCi 3.96E-02 4.02E-02 0.99 A Fe-59 Total uCi 2.99E-02 Zn-65 2.92E-02 1.02 Total uCi A L-ý- i --- L-. Zn-65 Total uCi 5.22E-02 5.12E-02 1.02 1.02 A

A E-6

TABLE E-3 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK BROWN ENGINEERING (TBE) ENVIRONMENTAL PROGRAM TELEDYNE SERVICES, 2001 Identification Month/Year Number Matrix Nuclide Reported Known T Ratio September, 2001 Units Value Value Al 4737-148 Air Filter Co-60 Total uCi TBE/Analytics Evaluation 4.71 E-02' 4.83E-02" ,n oq A

September, 2001 Al 4738-148 Liquid Gr-Alpha Total uCi 5.80E 4.67 -, - 1.24 September, 2001 A

A14286-148 Liquid Gr-Alpha uCi/cc 1.70E-04 1.45E-04 1.17A "H-3 uCi/cc 2.92E-03 1.77E-03 1.65 A September, 2001 E2772-396 Milk 1.131i pCi/L 100 91 A Ce-141 1.10 pCi/L 126 121 cr-S1 1.04 A pCi/L 349 366 0S-T34 0.95 A pCi/L 147 160 Cs-137 0.92 A pCi/L 321 319 co-58 1.01 A pCi/L 190 177 Mn-54 1.07 A rpCi/L 205 205 Fe-59 1.00 A pCi/L 85 86 Zn-65 0.99 A pCi/L 246 254 C0-60 0.98 A pCi/L 261 266 0.98 A March, 2001 QAP 103 Soil K-40 Bq/kg 464.8 468 A Cs-1 37 0.99 Bq/kg 1696 1740 0.97 A Pu-239/40 Bq/kg 24.32 Bq/kg 25.6 0.95 A Sr-90 80.8 69 1.17 A Bq/kg 80.8 I. I A E-7

TABLE E-4 DOE/EML ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING (TBE) ENVIRONMENTAL SERVICES, 2001 r __________________ -

Identification Reported Known Ratio Month/Year Number Media Nuclide Units Value Value TBE/EML March, 2001 QAP 103 Air Filter Evaluation Mn-54 Bq/filter 6.96 6.52 1.07 A Co-60 Bq/filter 19.4 19.44 1.00 A Cs-1 34 Bq/f'lter 2.59 2.83 0.92 A Cs-1 37 Bq/filter 9.52 8.76 1.09 A Pu-238 Bq/filter 0.23 0.215 1.07 A Pu-239 Bq/filter 0.17 0.136 1.25 W Am-241 Bq/filter 0.93 0.486 W 1.91 Total-U ug/ filter 0.127 3.7 0.03 N (a)

Gr-A!pha Bq/filter 3.33 3.97 0.84 A Gr-Beta Bq/filter 2.26 2.58 0.88 w Sr-90 Bq/filter 7.46 7.1 1.05 A March, 2001 QAP 103 Vegetation K-40 Bq/kg 728 1.21 603 A Co-60 Bq/kg 34 30.4 1.12 A Cs-1 37 Bq/kg 1005 842 1.12 A Pu-239 Bq/kg 10.54 9.58 1.19 A Am-241 Bq/kg 7.03 6.17 Cm-244 1.14 A Bq/kg 2.26 3.69 Sr-90 0.61 W L- Bq/kg 1283 1330 0.96 A

A E-8

TABLE E-4 DOE/EML ENVIRONMENTAL RADIOACTIVITY CROSS CHECK ENGINEERING (TBE) ENVIRONMENTAL PROGRAM TELEDYNE BROWN SERVICES, 2001 QAP 103 Water 1.04 A 0.84 A 0.93 A 1.13 W 1.21 W 1.32 W lune, 2001 1.15 A 1.05 A 1.04 A 1.11 A 0.98 A 1.18 A 2001 1.18 A 1.14 A 1.20 A 1.01 A 1.08 A I .1 1.06 0.75 A

W 0.75 W 0.33

TABLE E-4 DOE/EML ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING (TBE) ENVIRONMENTAL SERVICES, 2001 Identification Reported Known Ratio Month/Year Number Media Nuclide Units Value Value TBE/EML Evaluation J . I.. v v vL~LIUI I tq/r.g 827.4 639 1.29 w co-5o Bq/Kg 34.4 32.8 1.05 A Cs-1 37 Bq/Kg 949.4 867 1.10 A June, 2001 QAP 2009 Water Co-60 Bq/L 75.7 73.7 1.03 A Cs-137 Bq/L 69.3 67.0 1.03 A U-234 Bq/L 0.39 0.481 0.81 w U-238 Bq/L 0.32 0.368 0.87 w Total U Bq/L 0.014 0.0304 0.46 N (b)

September, 2001 QAP 0109 Air Filters Mn-54 Bq/filter 97.1 81,15 1.197 A co-60 Bq/filter 18.8 17.5 1.074 A Sr-90' Bq/filter 2.56 3.481 0.735 W Cs-1 34 Bq/fitter 12.7 12.95 0.981 A Cs-137 Bq/filter 20.8 17.1 1.216 W Pu-238 Bq/filter 0.0595 0.071 0.838 w Pu-239 Bq/filter 0.287 0.2291 1.253 w Am-241 Bq/filter 0.089 0.088 1.011 A Gr-Alpha Bq/filter, 5.42 5.362 1.011 A Gr-Beta Bq/filter 12.0 12.77 0.94 A September, 2001 QAP 0109 Soil K-40 Bq/kg 673.0 623.33 1.080 A Sr-90 Bq/kg 29.6 30.596 0.967 A Cs-1 37 Bq/kg 680.5 612.33 1.111 A Pu-239 Bq/kg 7.42 8.948 0.829 W E-10

TABLE E-4 DOEIEML ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING (TBE) ENVIRONMENTAL SERVICES, 2001 I Numbnerl aion I T I - ____________

Reported Known Ratio Month/Year Number. 1 di I*h InliH*

. a Im + ~t. ~ ~ ~ I'lUir.lV

-I %~_____

4%.II.J U"!ILb i value I Value TBE/EML Evaluation

~'.~t~ I,

'S i Mr I LJ~.SI ,~

)fl1Ir~

U. *MI. U I Ut I

vegetation K-40 Bq/kg 1090.0 898.67 1.213 A Co-60 Bq/kg 39.8 35.3 1.127 A Sr-90 Bq/kg 1253.0 1612.8 0.777 A Cs-1 37 Bq/kg 1235.0 1030.0 1.199 A Pu-239 Bq/kg 11.6 11.022 1.052 A September, 2001 QAP 0109 Water H-3 Bq/L 212.3 207.0 1.026 A Co-60 Bq/L 207.3 209.0 0.992 A Ni-63 Bq/L 50.7 45.25 1.1 A Sr-90 Bq/L 4.76 3.729 1.276 W Cs-1 37 Bq/L 47.7 45.133 1.057 A Pu-238 Bq/L 1.21 1.0882 1.112 W Pu-1 39 Bq/L .1.86 1.628 1.143 W Am-241 Bq/L 0.763 0.7597 1.004 A Gr-Alpha Bq/L 1333.0 1150.0 1.159 W Gr-Beta Bq/L 8533.0 7970.0 1.071 A 8533.0 I. _______ _______

(a) Reported in Bq/filter. Converted to ug/filter, the results of 3.4 would be acceptable.

(b) Reported in incorrect units. Converted to correct units, the results would be acceptable.

E- 11

Exelon.

Exelon Nuclear www.exeloncorp.com Nuclear Limerick Generating Station P.O. Box 2300 Sanatoga, PA 19464 T.S. 5.4.1 App B April 26, 2002 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Limerick Generating Station, Unit 1 and 2 Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353

Subject:

2001 Annual Environmental Operating Report (Non-Radiological)

Gentlemen:

In accordance with Section 5.4.1 of Appendix B of the Facility Operating Licenses Environmental Protection Plan (EPP), attached is the Limerick Generating Station, Units 1 and 2, 2001 Annual Environmental Operating Report (Non-Radiological). This report describes the implementation of the EPP for 2001.

If you have any questions or require additional information, please do not hesitate to contact us.

Sincerely, William Levis Vice President-LGS Attachment cc: H. J. Miller, Administrator, Region I, USNRC A. L. Burritt, LGS USNRC Senior Resident Inspector

bcc: J. Benjamin, Cantara G. Vanderhayden, KSA C. Pardee, KSA W. Levis, GML 5-1 M. Gallagher, KSA R. Braun, GML-5 K. Cellars, KSA J. Grimes, KSA C. Mudrick, SSB 3-1 D. Helker, KSA M. Kaminski, SSB 2-4 S. Simpson, SSB 2-2 R. Dickinson-SSB 2 S. Endy, SMB 1 M. Golson, SSB 2-2 R. McCall, SSB 2-3 J. Toro, SMB 1-2 D. Wahl, KSA R. Alejnikov, SSB 2-2 S. Gamble, SSB 2-4 R. Kankus, KSA C. Lewis, KSA 3-2 J. Toro, SMB 1 R. R. Janati - Commonwealth of Pennsylvania S. P. Focht - American Nuclear Insurers B. Aptowicz - City of Phila. Water Dept Dr. T Yohe - Phila. Suburban Water Co J. Patano -Phoenixville Water Works A. Wyda - Citizens Utility Water Co.

R. Jones - Pottstown Water Authority D. Dyckman - PA DEP BRP Inspector

LIMERICK GENERATING STATION UNITS 1 AND 2 2001 ANNUAL ENVIRONMENTAL OPERATING REPORT (NON-RADIOLOGICAL)

JANUARY 1, 2001 - DECEMBER 31, 2001 FACILITY OPERATING LICENSE NOS. NPF-39, NPF-85 DOCKET NOS. 50-352, 50-353 EXELON GENERATION COMPANY, LLC

Limerick Generating Station 2001 Annual Environmental Operating Report (Non Radiological)

Introduction This report describes the implementation of the Environmental Protection Plan (EPP), Limerick Generating Station (LGS) Appendix B Technical Specifications, from January 1 through December 31, 2001.

Provided herein are summaries and results of the environmental protection activities required by Subsection 4.2 of the EPP.

2.0 Environmental Protection Activities 2.1 Aquatic Monitoring The Environmental Protection Plan states that the NRC will rely on decisions made by the Commonwealth of Pennsylvania, under the authority of the Clean Water Act, for any requirements for aquatic monitoring. Industrial waste NPDES Permit PA 0051926 provides the mechanism for protecting water quality and, indirectly, aquatic biota. In accordance with the requirements of Section 3 of the Permit, monitoring results were summarized for each month and reported on Discharge Monitoring Reports (DMR) which were submitted to the PA DEP and US EPA.

A summary of the results as reported in the monthly DMRs is presented in Table 1 for discharge points at the Limerick Station and the Bradshaw Reservoir discharge to the East Branch Perkiomen Creek.

In 2001, general observations were made to determine if the exotic zebra mussel was present in the surface waters used for cooling purposes for Limerick Station. Locations were visited upstream and downstream of the Limerick Station site on the Schuylkill River, as well as near the pumping station on the Perkiomen Creek (Graterford, PA). None of the observations revealed any sign of mussel infestation. In addition, general observations were made on several occasions to determine the presence of zebra mussel at several points along the Point Pleasant water diversion route. Sites visited included the diversion outfall structure on the East Branch and several locales along the East Branch Perkiomen Creek water diversion route.

No zebra mussels were found, although Asiatic clams were common at all locations.

Fish tissue samples were collected bi-annually as part of the Radiological Environmental Monitoring Program (REMP) on the Schuylkill River, both upstream and downstream of Limerick

Limerick Generating Station 2001 Annual Environmental Operating Report (Non Radiological)

Generating Station. These collection efforts allow for a descriptive assessment of the fish community in the vicinity of Limerick. Most common were spottail shiner, spotfin shiner, common shiner, carp, goldfish, white sucker, redbreast sunfish, pumpkinseed, smallmouth and largemouth bass, brown and yellow bullhead, and channel and white catfish. Smallmouth bass was one of the most common species of game fish. The species composition of the fish community upstream and downstream of Limerick appeared to be similar.

2.2 Terrestrial Monitoring No terrestrial monitoring is required.

2.3 Maintenance of Transmission Line Corridors Transmission line maintenance records concerning herbicide use are maintained by the PECO Energy Company Consumer Energy Services Group - Power Delivery Division (Electric Transmission and Distribution Department). As required by the LGS Appendix B Technical Specifications, Section 4.2.3, these records can be made available to the NRC upon request.

2.4 Noise Monitoring All noise surveys required by the LGS Final Environmental Statement, Section 5.14.4, Atomic Safety Licensing Board (ASLB) ruling LBP-83-11, dated March 8, 1983, and LGS Appendix B Technical Specifications, Sections 2.3 and 4.2.4. were completed in 1990 for Limerick Generating Station Unit 2 operation and Bradshaw Reservoir. These studies were reported on in the 1990 Annual Environmental Operating Report (Non-radiological). No further noise monitoring is required per LGS Appendix B Technical Specifications, Section 4.2.4.1.

2.5 Environmental Protection Plan There were no Environmental Protection Plan (EPP) non compliances identified by the Nuclear Oversight Department or by Station Self-Assessment in 2001.

2.6 Changes in Station Design or Operation, Tests or Experiments There were no changes in the Limerick Generating Station design or operation and performance of tests or experiments that

Limerick Generating Station 2001 Annual Environmental Operating Report (Non Radiological) required an Environmental Evaluation in accordance with the requirements of Section 3.1 of the Environmental Protection Plan.

2.7 Non-routine Reports Submitted In 2001, one non-routine report containing one incidence of non compliance was submitted in accordance with EPP Section 5.4.2.

Copies of all letters were supplied to the NRC.

The non-routine report was generated to document a hazardous material spill at the Limerick Generating Station (LGS) near the Unit 2 Cooling Tower Sodium Hypochlorite tank at approximately 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-4 months <br /> on 1/1/2001. The spill occurred due to failed PVC piping used to transfer Sodium Hypochlorite. The likely cause of the failure was ice falling from the nearby cooling tower and hitting the piping. Approximately 20 gallons spilled onto the manmade concrete platform; approximately 1 gallon ran into a dirt area forming a small puddle.

All contamination was contained onsite at the location of the spill.

The spill was cleaned up upon discovery without offsite consequences. The Sodium Hypochlorite that was contained on a manmade surface was immediately cleaned up with assistance from our offsite spill response vendor, Lewis Environmental. The dirt which was contaminated by Sodium Hypochlorite was excavated and placed into a 55-gallon drum for disposal. The ground was frozen at the time of the event, thereby precluding a significant penetration into the soil.

A total of four 55-gallon drums of Sodium Hypochlorite, associated cleanup materials, and soil resulted from the spill. The drums were shipped for disposal.

Subsequent to the event, the station incident commander performed a visual investigation of the area to ensure that all of the Sodium Hypochlorite was cleaned up.

The entire Hypochlorite system was replaced with a new injection system and operational controls were increased. The modification involved the installation of double walled piping and a leak detection system to provide a barrier in preventing further spills.

The operational controls include increased monitoring of the system during operation to identify any potential precursors to spills. An eductor pumping system replaced the positive displacement pumping system to eliminate the excessive dynamic shocks, thereby providing additional assurance that no further spills occur from this system.

Limerick Generating Station 2001 Annual Environmental Operating Report (Non-Radiological)

TABLE 1

SUMMARY

OF 2001 LGS NPDES MONITORING RESULTS Location: Bradshaw LGS Site LGS Site LGS Site LGS Site LGS Site Permit Number: 0052221 0051926 0051926 0051926 0051926 0051927 001 001 201 301 005 012 Ave. Monthly Flow, MGD Maximum 39.81 9.03 0.3417 0.0241 6.22 0.24 Mean 27.87 8.04 0.2048 0.0082 0.62 0.04 Std Dev 13.84 0.85 0.0525 0.0056 1.72 0.09 Max Daily Flow, MGD Maximum 41.70 11.58 0.9691 0.1060 6.22 0.24 Mean 33.04 10.00 0.4677 0.0548 0.62 0.04 Std Dev 12.05 0.88 0.1951 0.0248 1.72 0.09 TSS, mg/l Maximum NR 17.75 12.8 NR 28.0 209 Mean NR 17.75 5.9 NR 27.0 209 Std Dev NR 0.00 3.0 NR 1.0 0 Discharge Temperature, Deg F Maximum NR 90.0 NR NR 105 NR Mean NR 77.1 NR NR 82 NR Std Dev NR 8.7 NR NR 23 NR Total residual Oxidants, mg/I Maximum NR 0.18 NR NR 0.11 NR Mean NR 0.11 NR NR 0.065 NR Std Dev NR 0.04 NR NR 0.045 NR Zinc, mg/I Maximum 0.013 NR NR NR NR NR Mean 0.013 NR NR NR NR NR Std Dev 0.000 NR NR NR NR NR Copper, mg/I Maximum <0.005 NR NR NR NR NR Mean <0.005 NR NR NR NR NR Std Dev 0 NR NR NR NR NR Inlet Temperature Maximum NR 77.4 NR NR NR NR Mean NR 59.85 NR NR NR NR Std Dev NR 12.26 NR NR NR NR Page 1

Limerick Generating Station 2001 Annual Environmental Operating Report (Non-Radiological)

TABLE I

SUMMARY

OF 2001 LGS NPDES MONITORING RESULTS Location: Bradshaw LGS Site LGS Site LGS Site LGS Site LGS Site Permit Number: 0052221 0051926 0051926 0051926 0051926 0051927 001 001 201 301 005 012 Spectrus CT 1300, mg/l Maximum NR 0.09 NR NR 0 NR Mean NR 0.05 NR NR 0 NR Std Dev NR 0.02 NR NR 0 NR Spectrun NX 1104, mgll Maximum NR NR NR NR NR NR Mean NR NR NR NR NR NR Std Dev NR NR NR NR NR NR pH, Min Minimum 7.60 8.30 NR NR 8.12 7.55 Mean 7.44 8.25 NR NR 8.08 7.55 Std Dev 0.12 0.08 NR NR 0.04 0.00 pH, Max Maximum 7.90 8.50 NR NR 8.12 7.55 Mean 7.78 8.43 NR NR 8.08 7.55 Std Dev 0.10 0.07 NR NR 0.04 0.00 Phosphorous, mg/l Maximum NR NR NR NR NR NR Mean NR NR NR NR NR NR Std Dev NR NR NR NR NR NR Dissolved Oxygen, mg/Il Minimum 9.70 NR NR NR NR NR Mean 10.54 NR NR NR NR NR Std Dev 0.69 NR NR NR NR NR Aluminum, mg/Il Maximum 0.080 NR NR NR NR NR Mean 0.080 NR NR NR NR NR Std Dev 0.000 NR NR NR NR NR Page 2

Limerick Generating Station 2001 Annual Environmental Operating Report (Non-Radiological)

TABLE I

SUMMARY

OF 2001 LGS NPDES MONITORING RESULTS Location: Bradshaw LGS Site LGS Site LGS Site LGS Site LGS Site Permit Number: 0052221 0051926 0051926 0051926 0051926 0051927 001 001 201 301 005 012 Cadmium, mgli Maximum <0.005 NR NR NR NR NR Mean <0.005 NR NR NR NR NR Std Dev 0 NR NR NR NR NR Iron, Total mg/I Maximum 0.110 NR NR NR NR 9.35 Mean 0.110 NR NR NR NR 9.35 Std Dev 0.000 NR NR NR NR 0 Iron, Dissolved mgli Maximum 0.03 NR NR NR NR 0.029 Mean 0.03 NR NR NR NR 0.029 Std Dev 0 NR NR NR NR 0 Nitrogen, Kjeldahl, mg/i Maximum NR NR NR NR NR NR Mean NR NR NR NR NR NR Std Dev NR NR NR NR NR NR Mercury, mg/I Maximum <0.0002 NR NR NR NR NR Mean <0.0002 NR NR NR NR NR Std Dev 0.0000 NR NR NR NR NR Nickel, mg/i Maximum <0.005 NR NR NR NR NR Mean <0.005 NR NR NR NR NR Std Dev 0.0000 NR NR NR NR NR Fecal Coliform, #1100 ml Maximum 22.00 NR NR NR NR NR Mean 10.00 NR NR NR NR NR Std Dev 7.77 NR NR NR NR NR Phenolics, mg/i Maximum 0.006 NR NR NR NR NR Mean 0.006 NR NR NR NR NR Std Dev 0.000 NR NR NR NR NR Page 3

Limerick Generating Station 2001 Annual Environmental Operating Report (Non-Radiological)

TABLE I

SUMMARY

OF 2001 LGS NPDES MONITORING RESULTS Location: Bradshaw LGS Site LGS Site LGS Site LGS Site LGS Site Permit Number: 0052221 0051926 0051926 0051926 0051926 0051927 001 001 201 301 005 012 Oil & Grease, mg/l Maximum NR NR 8.9 NR NR 2 Mean NR NR 3.2 NR NR 2 Std Dev NR NR 2.4 NR NR 0 Chromium-Hex, mg/l Maximum <0.01 NR NR NR NR NR Mean <0.01 NR NR NR NR NR Std Dev 0 NR NR NR NR NR Copper, mg/l Maximum <0.005 NR NR NR NR NR Mean <0.005 NR NR NR NR NR Std Dev 0 NR NR NR NR NR Lead, mg/I Maximum <0.05 NR NR NR NR NR Mean <0.05 NR NR NR NR NR Std Dev 0 NR NR NR NR NR Silver, mg/l Maximum <0.005 NR NR NR NR NR Mean <0.005 NR NR NR NR NR Std Dev 0 NR NR NR NR NR Cyanide, Free mg/l Maximum <0.005 NR NR NR NR NR Mean <0.005 NR NR NR NR NR Std Dev 0 NR NR NR NR NR Page 4

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