ML20029D237

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Annual Radiological Environ Operating Rept 10 Jan-Dec 1993. W/940422 Ltr
ML20029D237
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 12/31/1993
From: Helwig D
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9405040252
Download: ML20029D237 (65)
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Text

p _ p ;. .

Oawid R. Hsiwig

[ . ;e -es cent A

e . Ter < Generating Stapon ECO Ecerg/ Corrcany

.Ter a Generatmg sianon l- :O 2:42300 I 5 anat:ga PA '9464-0920 2*5 3.~. ' 5200. Ext. 3000 T.S.6.9.1.7

. April 22,1994 Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Limerick Generating Station Units 1 and 2 1993 Annual Radiological Environmental Operating Report Gentlemen:

In accordance with the requirements of the Umerick Generating Station (LGS) Unit 1 & 2 Technical Specifications (TS) Section 6.9.1.7, this letter submits the 1993 Annual Radiological Environmental Operating Report No.10. This report provides the information delineated in TS Section 6.9.1.7, including a summary of the Radiological Environmental Monitoring Program (REMP). 4 The 1993 Radiological Environmental Monitoring Program confirmed that the LGS environmental j effects from radioactive releases were well below LGS Technical Specification and other -)

J applicable tegulatory limits.

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

1 J

Very truly yours, ,

)

FJH/eer Enclosure l

cc: T. T. Martin, Administrator, Region I, USNRC i Neil Perry, USNRC Senior Resident inspector, LGS  !

r.CC040 ,

9405040252 DR 931232 _  ;

ADOCK 05000352 1

PDR

Docket No: 50-352 50-353 LIVIERICK GENERATING STATION UNITS 1 anc 2 f

Annual Radiological Environmental Operating Report Report #10 1 January Through 31 December 1993 Prepared By

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PECO ENERGY Nuclear Generation Group 965 Chesterbrook Blvd.

Wayne, PA 19087-5691

Docket No: 50-352 50-353 LIV ERICK GEN ERATING STATION UNITS 1 anc 2 Annual Radiological Environmental Operating Report Report #10 1 January Through 31 December 1993 Prepared By V l PECO ENERGY Nuclear Generation Group 965 Chesterbrook Blvd. '

Wayne, PA- 19087-5691-i

TABLE OF CONTENTS-

1. Summ a ry a n Con cl u s i on s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 II. Introduction .............................................. 2 A. Objectives of the REMP ................................. 2 B. Implementation of the Objectives . . . . . . . . . . . . . . . . . . . . . . . 2 III. Program Description........................................ 3 A. S ampl e Col l e c t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 B. Sample Analysis .................................... 4 C. Data Interpretation.................................... 5
1. Lower Limit of Detection........................... 5
2. Het Activity Calculation and Results Reporting . . . . . 5 a

D. Program Exceptions..................................... 6 E. Program Changes........................................ .7 IV. Resul ts and Di scus si ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 A. Aquatic Environment.................................... 8

1. Surface Water...................................... 8 l
2. Drinking Water..................................... 8
3. Fish....... ....................................... 9 i
4. Sediment........................................... 9 B. Atmospheric Environment................................ 10  !

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1. Airborne.. ........................................ . 10
a. Air Particulates ............................... 10
b. Air Iodine ..................................... 11
2. Terrestrial ........................................ 11 J
a. Milk ........................................... 11 C. Ambient Gamma Radiation ............................... 12 V. References................................................. 13 i

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Appendix A - Radiological Environmental Monitoring Report Summary Appendix B - Sample Designation and Locations l Appendix C - Data Tables and Figures - Primary Laboratory Appendix D - Data Tables and Figures - QC Laboratory Appendix E - Synopsis of Analytical Procedures Appendix F - Quality Control - EPA Intercomparison Program

- NRC, DER and PECO TLD Intercomparison Program Appendix G - LGS Surveys l.

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l I. Summary and Conclusions This report on the Radiological Environmental Monitoring Program conducted for ,

the Limerick Generating Station by PECO Energy covers the period 1 January 1993 through 31 December 1993. During that time period, 2506 analyses were performed I I

on 2157 samples.

Surface and drinking (potable) water samples were analyzed for concentrations of gross beta (soluble and insoluble fractions), tritium, and gamma emitting nuclides. No fission or activation products were found. Gross beta and tritium activities detected were consistent with those observed in other years.

Fish (predator and bottom feeder) and sediment samples were analyzed for concentrations of gamma emitting nuclides. No activation or fission products were detected in fish samples. Sediment samples collected below the discharge had Cs-137 concentrations consistent with levels observed in the preoperational years. Statistically significant activity for the activation product Co-60 was found at downstream location 16C4 (Vincent Dam) during the November collection.

This activity was attributable to LGS operations. The calculated dose to a teenager's skin from the sediment pathway was 6.72 E-03 mrem /yr which represents 0.03% of the allowable fraction of 10 CFR 50, Appendix I limits.

Air particulate samples were analyzed for concentrations of gross beta and gamma emitting nuclides. Cosmogenic Be-7 and K-40 were observed at levels consistent with those observed in other years. No fission or activation products were detected.

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

Cow and goat milk samples were analyzed for concentrations of I-131 and gamma emitting nuclides. All I-131 results detected were below the minimum detectable activity. Concentrations of K-40 were consistent with those observed in other years. Of the 20 samples analyzed by gamma spectroscopy, only one sample contained trace activity of Cs-137. The activity was not attributable to LGS operations. No other fission or activation products were found.

Environmental gamma radiation measurements were made monthly and quarterly using thermoluminescent dosimeters. Levels detected were consistent with those observed in other years.

In assessing all the data gathered for this report and comparing these results with preoperational data, it was evident that, the operation of LGS had no adverse impact on the environment.

II. Introduction The Limerick Generating Station (LGS), consisting of two 1055 MWe boiling water reactors owned and operated by PECO Energy (PECO), is located adjacent to the Schuylkill River in Montgomery County, Pennsylvania. Unit No. I went critical on 22 December 1984. Unit No. 2 went critical on 11 August 1989. The site is located in Piedmont countryside, transversed by numerous valleys containing small tributaries which 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 (ER0L) and the Branch Technical Position Paper (Rev. 1, 1979). The preoperational period for most media covers the periods 1 January 1982 through 21 December 1984 and was summarized in a separate report. This report covers those analyses performed by Teledyne Brown Engineering (TB) amd Public Service Electric and Gas Company (PSE&G) on samples collected during the period 1 January 1993 through 31 December 1993.

A. Objectives 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 l operation to assess Station effects (if any) on man and the -

environment.

1 III. Program Description A. Sample Collection I Samples for the LGS REMP. were collected for PECO Energy by RMC I I

Environmental Services, Inc. (RMC). This section describes the collection methods used by RMC to obtain environmental samples for the LGS REMP in 1993. Sample locations and descriptions can be found in Table B-1 and Figures B-1 through B-4, Appendix B.

Aauatic Environment The aquatic environment was examined by analyzing samples of surface water, drinking water, fish, and sediment. Two gallon water samples were collected monthly from continuous samplers located at three -

surface water locations (10F2,13B1, and 24S1) and four drinking water locations (13H2, 15F4, 15F7, and 28F3). One additional drinking water location (16C2) was sampled by compositing weekly _

grab samples into a monthly sample. Control locations were 10F2, 24S1, and 28F3. All containers used were 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 three locations: 16C5 and 20S1 (indicator) and 29C1 (control). Sediment samples composed of recently deposited substrate were collected at three locations semiannually: 16B2 and 16C4 (indicator) and 33A2 (control).

Atmosoberic Environment The atmospheric environment was examined by analyzing samples of air particulate, airborne iodine, and milk. Air particulate - were ,

collected and analyzed weekly at seventeen locations (281, 6C1, 9C1,  !

1 10S3, 11S1, 13C1, 13H4, 14S1, 15D1, 1781, 2001, 22G1, 26B1, 2981, 3101, 34S2, and 35B1). Control locations were 13H4 and 22Gl.

Airborne iodine samples were collected and analyzed weekly from five locations, (10S3,11S1,13C1,13H4, and 14S1). Control location was 13H4. Air particulate and airborne iodine samples were obtained using a vacuum sampler, glass fiber and charcoal filters, respectively. The filters were replaced weekly and sent to the laboratory for analysis. The vacuum samplers were run continuously  !

at approximately I cubic foot per minute.

Milk samples were collected biweekly at five locations (10B1',19B1, ,

18C1, 21B1, and 22F1) during April through November, and monthly during December through March and quarterly at four locations (36El, 9G1, 22C1, and 25C1). Locations 9G1 and 22F1 were controls.

Samples were collected in new unused two gallon plastic bottles from' the bulk tank at each location, refrip rated, and shipped promptly to the laboratory. No preservative was added.

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Ambient Gamma Radiation Direct radiation measurements were made using thermoluminescent dosimeters (TLD) consisting of calcium sulfate (CaSO4 ) doped with dysprosium (Dy). The TLD locations were placed on and around the LGS site using a "three ring concept" consisting of:

A site boundary ring consisting of sixteen locations (3652, 3S1, SS1, 7S1, 10S3, 1151, 14S1, 16S2, 18S1, 21S1, 23S2, 25S1, 26S3, 29S1, 32S1 and 34S2) near and within the site perimeter representing fencepost doses (i.e., at locations where the doses will be potentially greater than maximum annual off-site doses) from LGS release. A middle ring consisting of twenty-seven locations (2B1, 2El, 4El, 6C1, 7El, 9C1,10El,10F3,13C1,13E1, 1501,16F1,17B1,1901, 20D1, 20F1, 24D1, 25D1, 26B1, .28D2, 29B1, 29E1, 31D1, 31D2, 34E1, 35B1 and 35F1) extending to approximately 5 miles from the site designed to measure possible exposures to close-in population. And an outer ring consisting of five locations (5H1, 13H4, 18G1, 22G1 and 32GI) extending from approximately 12 to 30 miles from the site and considered to be unaffected by LGS releases.

The specific TLD locations were determined by the following criteria:

1. The presence of relatively dense population;
2. Site meteorological data taking into account distance and elevation for each of the 16-22 1/2 degree sectors around the site, where estimated annual dose from LGS, if any, would be ,

most significant; l

3. On hills free from local obstructions and within sight of the vents (where practical);
4. And near the closest dwelling to the vents in the prevailing downwind direction.

Two TLDs - each comprised of four thermoluminescent phosphors.

enclosed in plastic - were placed at each location in a PVC conduit located approximately three feet above ground level. One TLD was exchanged monthly and the other quarterly and sent to the laboratory for analysis.

B. Sample Analysis i In order to achieve the stated objectives, the current program  !

includes the following anayses:

1 Concentrations of beta emitters in surface and drinking 1.

(potable) water, and air particulates. ,

2. Concentrations of gamma emitters in surface and drinking I (potable) water, air particulates, milk. fish, and sediment, l
3. Concentrations of tritium in surface and drinking (potable) water.
4. Concentrations of I-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 this operational data will be compared. For the purpose of this report, LGS was considered operational at initial criticality. In addition data will be compared to previous years' operational data for consistency and trending. Several factors are important in the interpretation of the data. These factors are discussed here to avoid undue repetition in the discussion of the results.

1. Lower Limit of Detection 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.
2. Net Activity Caluculation and Reportina of Results Net activity for a sample was calculated by substracting background activity from the sample activity. Since the REMP measures extremely small changes in radioactivity in the environment, background variations will result in sample activity being lower than the background activity effecting a ,

negative number. For a more detailed description of the l results calculation, see Appendix E. i l

Teledyne Brown Engineering (TB) reported all analysis results except gamma spec results as Activity 1 2 Sigma. Public Service Electric & Gas (PSE&G) reported all analysis results except gamma spec as Activity i 1.96 Sigma.

TB reported all gamma spec results as Activity i 2 Sigma using two conventions (statistically significant and statistically non-significant activity). A Statistically Significant Activity is calculated activity that is greater than the individual sample's Minimum Detectable Activity and therefore most likely a "true positive result". A Statistically Non-significant Activity is calculated activity that is below the individual sample's Minimum Detectable Activity and therefore

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most likely not a "true positive result". Statistically Non-significant Activity includes calculated " negative activity".

PSE&G reported gamma spec and iodine-131 analyses as Activity ,

i 1.96 Sigma counting statistic when the activity was greater I than or. equal to the 1.96 sigma. When an activity was less than the 1.96 sigma, the result was reported as "< the 1.96 sigma value". PSE&G refers to the 1.96 sigma value as the individual sample MDA. For specific equations please see Appendix E.

Data reported in this report were generated using the convention of rounding the result to the same number of significant places as the first significant digit in the error term (i.e., 3.62 i 1.23 rounds to 4 i 1; 10.9310.96 rounds to 10.9i1.0;-0.0110.1 roundsto0.010.1). Results for each type of sample were grouped according to the analyses performed. For gamma analyses, at least those nuclides required for each sample media and nuclides which had a significant positive occurrence were reported. Means and standard deviations of these results were calculated. These standard deviations represent the variability of measured results for different samples rather than single analysis uncertainty. For these calculations, all results reported as

< MDA were considered to be at the MDA.

D. Program Exceptions For 1993 the LGS REMP had a sample recovery rate of better than 99%..

The exceptions to this program are 1 sted below:

1. Air particulate filters were not available from' location 35B1 from week #13 due to a sample collection error.
2. Air particulate sample was not collected from location 3101 from weeks #24, #28, and #37 due to pump failures.
3. Air particulate and air iodine samples were not collected from location 13H3 from weeks #16, #41, #43, and #45 due to electrical problems.

The specific dates for the above weeks may be found in Table C-IX.1, Appendix C.

4. Surface water samples collected at location 24S1 (LGS Intake)-

were composites of weekly grabs from 2/24/93.to 4/21/93 due to equipment problems. A one gallon grab was taken at this location on 12/27/93 because some of the composite was spilled due to freezing weather conditions.

5. Surface water samples collected at location 13B1 (Vincent Dam) were composites of weekly grabs from 3/9/93 to 3/31/93 due to equipment problems and from 11/29/93 to 12/13/93 due to flooding and freezing weather.

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6. Surface water samples collected at location 10F2 (Pe'rkiomen Pumping Station) were composites of weekly grabs due to equipment problems and maintenance during the following dates:

2/15/93 to 2/24/93, 3/25/93 to 7/15/93 and 12/7/93 to 12/13/93.

7. Drinking water samples collected at location 13H2 (Belmont Water Works) were composites of daily grabs due to maintenance <

and equipment problems during the following dates: 4/22/93and 5/3/93. l

8. Drinking water samples collected at location 28F3 (Pottstown) were composites of daily grabs on 3/1/93 and 8/12/93 to 8/26/93 due to equipment problems.
9. Ba-140 and La-140 LLDs for the milk sample collected in March 1993 farm 18C1 were not met because the analysis was added after several half-lives had past.

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. 1993 Program Changes Bi-weekly milk farm 25B1 went out of business in March. Farm 18C1 which had the next highest D/Q value was move from the quarterly milk program to the bi-weekly program and farm 25C1 was added to the quarterly milk program.

Teledyne Isotopes through a reorganization became Teledyne Brown Engineering.

Philadelphia Electric Company changed its name to PECO Energy.

t IV. Results and Discussion 1 A. Aquatic Environment

1. Surface Water Samples were taken from a continuous sampler at three locations (10F2, 1381, and 24S1) on a monthly schedule. Of these locations, only.1381 could be affected by Station discharges.

The following analyses were performed.

Gross Beta Samples from all locations were analyzed for concentrations of gross beta in the insoluble and soluble fractions (Tables C-I.1 and C-I.2, Appendix C). Detectable activity was observed in the insoluble and soluble fraction of the surface . water samples; the values were consistent with previous years (Figures C-1 and C-2, Appendix C) and ranged from -0.2 to 9 pCi/l for the insoluble fraction and from 2.1 to 10 pCi/l for the soluble fraction. Similar activity levels were observed' between indicator and control locations for the insoluble and soluble fractions.

Tritium Monthly samples from all locations were composited quarterly and analyzed for tritium activity (Table C-I.3, Appendix C).

Tritium activity ranged from -200 to 90 pCi/1.

Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides (Table C-I.4, Appendix C). Statistically significant activity for naturally occurring K-40 was found in 8 of- 36 samples. Potassium-40 results ranged from -120 to 30 pCi/1.

Statistically significant activity for Ra-226 was found in only one sample. No statisticaily significant fission or activation -

products were found.

2. Drinkino (Potable) Water Monthly samples were collected from continuous water samplers at four locations (13H2,15F4,15F7, and 28F3) and by weekly grab samples at one location 1(16C2). Four locations (13H2, 15F4,15F7 and 16C2) could be affected by Station discharges ~.

The following analyses were performed:-

G.ross Beta Samples from all locations were analyzed for concentrations of gross beta in the insoluble and soluble fractions -(Tables C-II.1andC-II.2,AppendixC). The values ranged from -0.3 to 2.3 pCi/l for the insoluble fraction and from 2.8 to 8 pCi/l for the soluble fraction. Concentrations detected -in both fractions were consistent with those observed in previous years (Figures C-3 and C-4, Appendix C).

Tritium Monthly samples from all locations were composited quarterly and analyzed for tritium activity (Table C-II.3, Appendix C).

Tritium activity ranged from -190 to 100 pCi/1. Similar activity levels were observed at all locations.

Gamma Soectrometry Samples from all locations were analyzed for gamma emitting nuclides (Table C-II.4, Appendix C). Statistically significant activity for naturally occurring K-40 was found in 14 of 60 samples. Potassium 40 results ranged from -43 to 19 pC1/l. No statistically significant fission or activation products were found.

3. Fish Fish samples comprised of catfish / bullhead (bottom feeder) and redbreast /pumpkinseed (predator) were collected at three locations (16C5, 20S1 and 29Cl) semiannually. Two locations (16C5 and 20S1) could be affected by Station discharges. The following analysis was performed:

Gamma Soectrometry The edible portion of fish samples from all three locations was analyzed for gamma emitting nuclides (Table C-III.1, Appendix C). With the exception of naturally occurring K-40, no statistically significant fission or activation products were found. Historical levels of Cs-137 are shown in Figure C-5, Appendix C.

4. .Sadiment Aquatic sediment samples were collected at three locations (16B2,16C4 and 33A2) semiannually. Of these locations, two (1682 and 16C4) could be affected by Station discharge. The following analysis was performed:

Gamma Spectrometry Sediment samples from all three locations were. analyzed for gamma emitting nuclides (Table C-IV.1, Appendix C). Nuclides i detected were cosmogenic Be-7; naturally occurring K-40, Ra-226 and Th-228; activation products Cr-S1, Mn-54 and Co-60; and fission product Cs-137. The nuclides Th-228 and Ra-226 commonly occur in sediment from daughter decay of natural uranium.

Concentrations of the fission product Cs-137 were found in sediment samples from both indicator and control locations.

Location 16B2 had the highest average concentration'of. 31 pCi/g dry. The activity detected was consistent with those observed in the preoperational years (Figure C-6, Appendix C).

Statistically significant activity for the activation product Co-60 was found at location 16C4 (Vincent Dam) during the November collection. The activity ranged from -0.02 to 0.07 pCi/g (dry).

The calculated dose from this pathway to a teenager's skin was 6.72 E-03 mrem /yr. This value is based upon the assumption the maximum concentration Co-60 at the downstream locations was present the entire year. This dose represents 0.03% of the allowable fraction of 10 CFR 50, Appendix I limits.

B. Atmospheric Environment

1. Airborne
a. Air Particulates Continuous air particulate samples were collected from seventeen locations on a weekly basis. The seventeen locations were separated into three groups: Group I represents locations within the LGS site ' boundary (10S3, 11S1,1451 and 34S2), Group II represents locations near the LGS site (2B1, 6C1, 9C1,13C1,15DI,1781, 20D1, 26B1, 2981, 31DI, 35B1), and Group III represents control locations at remote distances from LGS (13H4 and 22G1). The following i

analyses were performed:

Gross Beta 1

Weekly samples were analyzed for concentrations of beta emitters (Table C-V.1, Appendix C).

c Detectable gross beta activity was observed at all l locations. Comparison of results among the three groups aid l

in determining the effects, if any, resulting from the l operation of LGS. The results from thg On-Site locations l (Group I)3 ranged from 4 to 33 E-3 pCi/m with a mean of 16 l E-3 pCi/m . The results from the Intermediate gistance l locations (Group II) rgnged from 1 to 34 E-3 pCi/m with a mean of 16 E-3 pCi/m . The results from the Distant 3

locations (Group II ranged from 3 to 42 E-3 pC1/m with a l

mean of 18 E-3 pCi/m(). Comparison of the weekly mean value indicate no notable differences among the three groups i' Comparison of the 1993 air (Figure C-7, . Appendix C).

j particulate data with previous years data suggest no effects l

from the operation of LGS (Figure C-8, Appendix C).

Gamma Spectrometry Weekly samples from five locations (10S3,11S1,14S1,13C1, l

and 13H4) were composited and analyzed quarterly for gama-emitting nuclides (Table C-V.2, Appendix C).

Naturally occurring Be-7 due to cosmic ray activity was detected- {n all samples. These values ranged from 35 to 92 E-3 pCi/m . Potassium-40, also naturally occurring, was detected in statistically significantly quantities in 14 of 20 samples. Activity for K-40 ranged from -14 to 28 E-3 pCi/m. 3 No statistically significant fission or activation products were found.

b. Airborne Iodine Continuous air samples were collected from five (1053,11S1, 14S1, 13C1, and 13H4) locations and analyzed weekly for I-131 (Table C-VI.1, Appendix C). No statistically significant I-131 activity was found.
2. Terrestrial
a. Milk Samples were taken from five locations (10B1,18C1,1981, 2181 and 22F1) biweekly April through November and monthly December through March. Samples from four additional locations (9G1, 22C1, 25C1 and 36EI) were taken quarterly.

The following analyses were performed:

Iodine-131 All milk samples from all locations were analyzed for concentrations of 1-131 (Table C-VII.1, Appendix C). Values ranged from .17 to .07 pCi/1. All results were below the minimum detectable activity.

Gamma Spectrometry i

~ Each milk sample from locations 1081, 18C1, 1981, 2181 and ,

22F1 were analyzed for concentrations of_ gama. emitting j nuclides (Table C-VII.2, Appendix C). ]

Statistically significant K-40 activity was found in all i samples. The values ranged from 1100 to 2500 pCi/1. .i Statistically significant activity for Cs-137 was found in 1 of 21 goat milk (10B1) samples. Activity for Cs-137 ranged from -1 to 6 pCi/1. Historical Cs-137 activity in milk is shown in Figure C-9, Appendix C.

C. Ambient Gama Radiation Ambient gama radiation levels were measured utilizing CaSO 4:Dy thermoluminescent dosimeters. Forty-eight TLD locations were established around the site in a three ring concept for comparison purposes: an " inner ring" of sixteen locations around the site acj ,; .. '

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. bourdary; ' a '" middle ring" o'f twenty-seven locations.' within a' ten

  • mile radius of the site; and- an " outer ring" of five -locations at distances outside the ten mile' radius of tr site. -Results of-TLD mt:asurements are listed in Tables C-VIII.1 to C-VIII.4, Appendix C.

~ Most ~of the TLD measurements were below 10 mrad /std. month, with a -

range of 5.2 to ..12.7 mR/std. month for the monthly TLDs and from 3.9 to 8.3 mR/std. month lfor the quarterly TLDs. Levels measured were consistent with those - observed .-in previous years (Figure C-10, ,

t Appendix C).

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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. Preoperational Radiological Environmental Monitoring Program Report, Limerick Generating Station Units 1 and 2,1 January 1982 through 21 December 1984, Teledyne Isotopes and Radiation Management Corporation.
4. Radiological Environmental Operating Report No. 2, Limerick Generating Station Units 1 and 2,1 January through 31 December 1985, Philadelphia Electric Company, analyses by Teledyne Isotopes.
5. Radiological Environmental Operating Report No. 3, Limerick Generating Station Units 1 and 2,1 January through 31 December 1986, Philadelphia Electric Company, analyses by Teledyne Isotopes.
6. Radiological Environmental Operating Report No. 4, Limerick Generating Station Units 1 and 2,1 January through 31 December 1987, Philadelphia Electric Company, analyses by Teledyne Isotopes.
7. Radiological Environmental Operating Report No. 5, Limerick Generating Station Units 1 and 2,1 January through 31 December 1988, Philadelphia Electric Company, analyses by Teledyne Isotopes.
8. Radiological Environmental Operating Report No. 6 Limerick Generating Station Units 1 and 2,1 January through 31 December 1989, Philadelphia Electric Company, analyses by Teledyne Isotopes.
9. Radiological Environmental Operating Report No. 7, Limerick Generating Station Units 1 and 2,1 January through 31 December 1990, Philadelphia Electric Company, analyses by Teledyne Isotopes.

10 Radiological Environmental Operating Report No. 8, Limerick Generating Station Units 1 and 2,1 January through 31 December 1991, Philadelphia Electric Company, analyses by Teledyne Isotopes.

11 Radiological Environmental Operating Report No. 9, Limerick Generating Station Units 1 and 2,1 January through 31 December 1992, Philadelphia Electric Company, analyses by Teledyne Isotopes.

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I RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

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APPENDIX A RADIOLOGICAL ENYlRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

NAME OF FACILITY: LIMERICK GENERATING STAfl0N DOCKET NO.: 50-352 1 50-353 LOCATION OF FACILITY: MONTGCMERY COUNTY, PA REPORTING PERIOD: 1993 INDICATOR CONTROL LOCATION WITH HIGHEST LOCATIONS ANNUAL MEAN NUMBER "EQUIRED

. LOCATIONS MEAN MEAN STATION # OF NONROUTINE MEDILM OR TYPE OF NUMBER OF LOWER LIMIT MEAN REPORTED PATHWAY SAMPLED ANALYSES ANALYSES OF DETECil0N (F) (F) (F) NAME RANGE RANGE RANGE DISTANCE & DIRECTION MEASUREMENTS PERFORMED (LLD)

(UNIT OF MEASUREMENT) PERFORMED 6.0 7.1 10F2 (CONTROL) 0 SURFACE WATER GROSS BETA 36 4 5.4 (PCI/ LITER) SOLUBLE (12/12) (24/24) (12/12) PERK! OMEN PUMPING STATION (2.5/9.0) (2.1/9.8) (4.1/9.8) 7.1 MILES E OF SITE 2.8 0.6 2.8 1381 (INDICATOR) 0 GROSS BETA 36 4 INSOLUBLE (12/12) (24/24) (12/12) VINCENT DAM (0.2/10.5) (-0.2/2.6) (0.2/10.5) 1.8 MILES ESE OF SITE

-10 20 1381 (INDICATOR) 0 TRITILM 12 2000 20 (4/4) (8/8) (4/4) VINCENT DAM

(-10/60) (-170/90) (-10/60) 1.8 MILES ESE OF SITE GAMMA SPEC 36

-6 -2 1381 (INDICATOR) 0 K-40 N/A -2 (12/12) (24/24) (12/12) VINCENT DAM

(-28/30) (-120/17) (-28/30) 1.8 MILES ESE OF SITE 0.1 0.1 0.1 24S1 (CONTROL) 0 MN-54 15 (12/12) (24/24) (12/12) LGS INTAKE

(-0.1/0.4) (-0.8/0.6) (-0.7/0.6) 0.3 MILES WSW OF SITE

-0.1 -0.1 0.0 24S1 (CONTROL) 0 CO-58 15 (12/12) (24/24) (12/12) LGS INTAKE

(-0.7/0.8) (-0.7/0.4) (-0.7/0.4) 0.3 MILES WSW OF SITE 0.1 0.3 0.4 1CF2 (CONTROL) 0 FE-59 30 (12/12) (24/24) (12/12) PERK 10 MEN PUMPING STATION

(-0.6/1.0) (-0.6/0.8) (-0.2/0.8) 7.1 MILES E OF SITE 0.2 0.3 2451 (CONTROL) 0 CD-60 15 0.1 (12/12) (24/24) (12/12) LGS IWTAKE

(-0.4/0.4) (-0.2/0.9) (-0.1/0.6) 0.3 MILES WSW OF SITE MEAN AND RANCE BASED UPON DETECTABLE MEASUREMENTS ONLY.

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F).

A-1 .

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

NAME OF FACILITY: LIMERICK GENERATING STATION DOCKET Wo.: 50-352 & 50-353 LOCAft0N OF FACILITY: MONTGOMERY COUNTY, PA REPORTING PERIOD: 1993 INDICATOR CONTROL LOCATION WITH HIGHEST REQUIRED LOCATIONS LOCATIONS ANNUAL MEAN NUMBER NUMBER OF LOWER LIMIT MEAN MEAN MEAN STATION # OF WONROUTINE MEDIUM OR TYPE OF PATHWAY SAMPLED ANALYSES ANALYSES OF DETECTION (F) (F) (F) NAME REPORTED PERFORMED (LLD) RANGE RANCE RANGE DISTANCE & DIRECTION MEASUREMENTS (UNIT OF MEASUREMENT) PERFORMED ZN-65 30 0.2 0.0 0.2 1381 (INDICATOR) 0 (12/12) (24/24) (12/12) VINCENT DAM

(-0.5/1.0) (-1.1/1.1) (-0.5/1.0) 1.8 MILES ESE OF SITE 30 0.6 0.5 0.7 2451 (CONTROL) 0 ZR-95 (12/12) (24/24) (12/12) LGS INTAKE

(-0.8/3.0) (-2.0/2.0) (-0.2/2.0) 0.3 MILES WSW OF SITE 15 0.3 0.3 0.3 10F2 (CONTROL) 0 NS-95 (12/12) (24/24) (12/12) PERKIOMEN PUMPING STATION

(-0.4/0.6) (0.0/0.6) (0.1/0.6) 7.1 MILES E OF SITE CS-134 15 -0.1 0.0 0.1 10F2 (CONTROL) 0 (12/12) (24/24) (12/12) PERKIOMEN PUMPING STATION

(-0.5/0.6) (-0.7/0.6) (-0.3/0.6) 7.1 MILES E OF SITE CS-137 18 0.2 0.1 0.2 24S1 (CONTROL) 0 (12/12) (24/24) (12/12) LGS INTAKE

(-0.2/0.5) (-1.1/0.5) (0.0/0.5) 0.3 MILES WSW OF SITE BA-140 60 1 0 1 1381 (INDICATOR) 0 (12/12) (24/24) (12/12) VINCENT DAM

(-1/2) (-3/3) (-1/2) 1.8 MILES ESE OF SITE LA-140 15 -0.3 -0.1 0.0 10F2 (CONTRC1) 0 (12/12) -(24/24) (12/12) PERK 10 MEN PUMPING STATION

(-2.0/0.6) (-0.9/1.1) ( 0.9/1.1) 7.1 MILES E OF SITE RA-226 N/A -5 -9 -5 1381 (IN0!CATOR) 0 (12/12) (24/24) (12/12) VINCENT DAM

(-20/16) (-29/20) (-20/16) 1.8 MILES ESE OF SITE MEAN AND RANGE BASED UPON DETECTABLE MEASUREMENTS ONLY.

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F).

A-2

APPEN0lX A RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

NAME OF FACILITY: LIMERICK CENERATING STATION DOCKET No.: 50-352 & 50-353 LOCATION OF FACILITY: MONTGOMERY COUNTY, PA REPORTING PEtttx): 1993 INDICATOR CONTROL LOCATION WITH MIGHEST LOCATIONS LOCATIONS ANNUAL MEAN NUMBER REQUIRED MEAN MEAN STATION f 0F NONROUTINE MED!LM OR TYPE OF YJtBER OF LOWER LIMIT MEAN (F) REPORTED PATHWAY SAMPLED ANALYSES ANALYSES OF DETECTION (F) '(F) NAME RANGE RANCE MANGE DISTANCE & DIRECTION MEASUREMENTS PERFORMED (LLD)

(UNIT OF MEASUREMENT) PERFORMED 0.5 -0.2 0.5 1381 (INDICATOR) 0 TH-228 N/A (12/12) (24/24) (12/12) VINCENT DAM

(-1.6/2.6) (-1.7/1.1) (-1.6/2.6) 1.8 MILES ESE OF SITE 4 5.4 5.0 5.8 15F4 (INotCATOR) 0 DRINKING WATER GROSS BETA 60 SOLUBLE (48/48) (12/12) (12/12) PHILA. SUS. WATER Co.

(PCI/ LITER)

(2.6/8.4) (3.1/7.0) (4.0/7.8) 7.8 141LES SSE OF SITE 0.4 0.2 0.8 13H2 (INDICATOR) 0 GROSS BETA 60 4 INSOLUBLE (48/48) (12/12) (12/12) BELMCMT WATER WORKS (PMILA.)

(-0.3/2.3) (0.0/0.4) (0.1/2.1) 25.5 MILES SE OF SITE

-10 -40 20 15F7 (IMDICATOR) 0 TRITIUM 20 2000 (16/16) (4/4) (4/4) PHOENIXVILLE WATER WORKS

(-90/100) (-190/30) (-90/100) 5.2 MILES SSE CF SITE GAMMA SPEC 60

-5 -4 -1 13H? (INDICATOR) 0 K-40 N/A (48/48) (12/12) (12/12) BELMONT WATER WORKS (PHILA.)

( 42/19) (-43/19) (-8/17) 25.5 MILES SE OF SITE 15 0.1 0.1 0.2 15F7 (INDICATOR) 0 MN-54 (48/48) (12/12) (12/12) PHOENIXVILLE WATER WORKS

(-0.3/0.7) (-0.1/0.6) (-0.1/0.7) 5.2 MILES SSE OF SITE 15 -0.1 -0.2 0.0 15F7 (INDICATOR) 0 co-58 (48/48) (12/12) (12/12) PHOEMIXVILLE WATER WORKS ~

(-0.6/0.4) (-0.7/0.2) (-0.5/0.4) 5.2 MILES SSE OF SITE 0.0 -0.1 0.1 16C2 (INDICATOR) 0 FE-59 30 (48/48) (12/12) (12/12) CITIZENS MOME WATER CO.

(-1.0/1.0) (-0.8/0.6) (-0.3/0.3) 2.4 MILES SSE OF SITE MEAN A O RANCE BASED UPON DETECTABLE MEASUREMENTS ONLY.

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F).

A-3 _

l i-

i-i l ,_

l APPENDlX A RA0!0 LOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMtARY NAME OF FACILITY: LIMERICK GENERATING STATION DOCKET NO.: 50-352 & $0-353 LOCATION OF FACILITY: MONTGOMERY COUNTY, PA REPORTING PERIOD: 1993 INDICATOR CONTROL LOCAft0N WITM HIGHEST LOCATIONS LOCATIONS ANNUAL MEAN NUMBER REQUIRED MEAN MEAN STATION 8 0F NONROUTINE MEDILM OR TYPE OF NUMBER OF LOWER LIMIT MEAN PATHWAT SAMPLED ANALYSES ANALYSES OF DETECTION (F) (F) (F) NAME .

REPORTED RANGE RANGE RANGE DISTANCE & DIRECTION MEASUREMENTS

-(UNIT OF MEASUREMENT) PERFORMED PERFORMED (LLD)

CD-60 15 0.1 0.1 0.2 15F7 (INDICATOR)- 0 (48/48) (12/12) (12/12) PHOENIXYlLLE WATER WORKS

(-0.4/0.8) (-0.2/0.3) (-0.4/0.8) 5.2 MILES SSE OF SITE 30 0.2 0.3 0.4 15F7 (INDICATOR) 0 ZN-65 (48/48) (12/12) (12/12) PHOENIXVILLE WATER WORKS

(-1.3/2.0) (-0.7/2.0) (-0.3/1.5) 5.2 MILES SSE OF SITE 30 -0.4 0.5 0.7 15F4 (INDICATOR) 0 ZR-95 (48/48) (12/12) (12/12) PHILA. SUB. WATER CO.

(-2.4/3.0) (-0.5/1.6) (-0.4/2.0) 7.8 MILES SSE OF SITE 15 0.3 0.3 0.3 16C2 (INotCATOR) 0 NS-95 (48/48) (12/12) (12/12) CITIZENS HCME WATER CO.

(-1.0/0.9) (-0.4/0.9) (-0.1/0.9) 2.4 MILES SSE OF SITE 15 0.0 0.1 0.1 28F3 (CONTROL) 0 CS-134 (48/48) -(12/12) (12/12) POTTSTOWN WATER AUTHORITY

(-1.3/0.7) (-0.6/0.8) (-0.6/0.8) 5.9 MILES WNW OF SITE 18 0.2 0.2 0.3 - 13H2- (IN0!CATOR) 0

.CS-137 . .

(48/48)- (12/12) (12/12)' 8ELMONT WATER WORKS (PNILA.)

(-0.2/0.8) (-0.6/0.5) (0.1/0.8) 25.5 MILES SE OF SITE 60 0 0 1 15F4 (INDICATOR) 0 SA-149 (48/48) (12/12) (12/12) PHILA. SUB. WATER CO.

(-2/4) ( 2/5) (0/4) 7.8 MILES SSE OF SITE 15 -0.1 0.1 0.2 15F4 (INotCATOR) 0 LA-140 (48/48) -(12/12) (12/12) PHILA. SUB. WATER CO.

(-5.0/1.0)- ( 0.9/2.0) (-1.1/1.0) 7.8 MILES SSE OF SITE

'MEAN AND RANGE BASED UPON DETECTABLE MEASUREMENTS ONLY.

. FRACTION OF DETECTA8LE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F).

A-4 ,

1

, . , .. ~ .-- .

APPENDIE A RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL Supe 4ARY NAME OF FACILITY: LIMERICit GENERATING STATION DOCKET No.: 50-352 & 50-353-LOCATION OF FACILITY: MONTCOMERT COUNTY, PA REPORTING PERIOD: 1993 -

INDICATOR- CONTROL LOCATION WITH HIGHEST LOCATIONS LOCATIONS ANNUAL MEAN NUM80*

REQUIRED MEAN MEAN STATION # OF NONROUTINE MEDIUM OR TYPE OF NUMBER OF LOWER LIMIT MEAN REPORTED PATHWAT SAMPLED ANALYSES ANALYSES OF DETECTION (F) (F). (F) NAME RANGE -RANGE RANGE DISTANCE & DIRECTION MEASUREMENTS -

PERFORMED (LLD)

(UNIT OF MEASUREMENT) PERFORMED

-8 -1 -1 28F3 (CONTROL) 0 RA-226 N/A (48/48) (12/12) (12/12) POTTSTOWN WATER AUTHORITY

(-21/12) (-20/20) (-20/20) 5.9 MILES WWW OF SITE

-0.2 -0.3 0.3 -15F7 (INDICATOR) 0 TM-228 N/A (48/48) (12/12) -(12/12) - PHOENIXVILLE WATER WORKS

(-2.2/3.0) (-2.3/1.2) (-2.1/3.0) 5.2 MILES SSE OF SITE PREDATOR (FISH) GAMMA SPEC 6 3300 2800 3700 16C5 (INDICATOR) 0 (PCl/KG WET) K-40 (4/4) (2/2)- . (2/2) Vincent Pool (2800/4400) (2400/3200) (2900/4400) DOWNSTREAM OF 0;'CHA M

-1 6 16CS (INDICATOR) 0 MN-54 6 130 1 (4/4) (2/2) (2/2) Vincent Pool

(-9/6) (-12/10) (5/6) DOWNSTREAM OF DISCHARGE

-5 10 29C1 (CONTROL) 0 Co-58 6 130 10 (4/4) (2/2)- (2/2) Pottstown Vicinity

(-9/-2) (0/20) (0/20) UPSTREAM OF DISCHARGE 6 260 0. 20 . 20 29C1 (CONTROL) 0 FE-59 (4/4) (2/2) (2/2) Pottstown Vicinity

(-30/20) (20/20) (20/20) UPSTREAM OF DISCHARGE 7 -1 14 20$1 (INDICATOR) 0 CD-60 6 130 (4/4) .(2/2) (2/2) Discharge Area

(-6/20) (-1/0) (7/20) DOWNSTREAM OF DISCHARGE 6 260 .10 - 0 10 20S1 (INDICATOR) 0 IN-65 (4/4) (2/2) (2/2) Discharge Area

(-10/30).. (-10/0) (0/20) DOWNSTREAM OF DISCHARGE MEAN AND RANGE BASED UPON DETECTABLE MEASUREMENTS ONLY.-

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTNESES (F).

A-5 .

2-APPENDIX A RAD 10 LOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUPMARY NAME OF FACILITY: LIMERICK GENERATING STATION DOCKET Wo.: 50-352 & 50-353 LOCATION OF FACILITY: MONTGOMERY COUNTY, PA. REPORTING PERIOD: 1993 ,

INDICATOR CONTROL LOCATION WITH MIGHEST LOCATIONS ANNUAL MEAN NUMBER

  • REQUIRED LOCATIONS MEAN EAN STATION # OF NONRGJTINE MEDItM OR . TYPE OF WlMBER OF LOWER LIMIT EAN (F) (F) NAME REPORTED PATHWAY SAMPLED ANALYSES ANALYSES OF DETECTION (F)

RANGE ' RANGE RANGE DISTANCE & DIRECTION MEASUREMENTS PERFORED (LLD)

(UNIT OF MEA 3UREMENT) PERFORMED 6 130 2 -2 2 -16C5 (INDICATOR) 0 CS-134 (4/4) (2/2) (2/2) Vincent Pool

(-9/12) (-5/0) (-9/12) DOWNSTREAM OF DISCHARGE >

4- to 10 29C1 .(CONTROL) 0

- CS-137 6 150 (4/4) (2/2) (2/2) Pottstoisi Vicinity (0/8) (-1/20) (-1/20) UPSTREAM OF DISCHARGE ,

30TTOM FEEDER (FISR) GAPMA SPEC 0  ;

K-40 6 3200 4000 4000 29C1 (CONTROL)

(PCI/KG WET)

I (4/4) (2/2) (2/2) Pottstown Vicinity ,

(2300/4100) (3200/4700) (3200/4700) UPSTREAM OF DISCHARGE 6 130 2 -1 2 2051 (IMDICATOR) 0 MM-54 (4/4) .(2/2) (2/2) Discharge Area

(-1/4) (-2/0) (0/4) . DOWNSTREAM OF DISCMARGE 6 130 -2 1 1 20$1 (INDICATOR) 0 CO-58 .

(4/4) (2/2) (2/2) Discharge Aree l1  :

(-6/5) (-5/7) (-3/5) DOWNSTREAM OF DISCHARGE FE-59 6 260 .-10 -10 0 16C5- (INDICATOR).. O

~

'(4/4) (2/2) (2/2) Vincent Pool

-(-20/0) ( 20/0) (-10/0) - DOWNSTREAM OF DISCHARGE 6 130 ~ -1 5 5 29C1 (CONTROL) 0 CD-60

.(4/4) (2/2) (2/2) Pottstown Vicinity -

(-10/5) .(4/6) (4/6) UPSTREAM OF DISCMARGE 6 260 0 3 20$1 (INDICATOR) 0

-ZN 1 (4/4) (2/2)'- .

(2/2) Disc!::.rge Aree

(-6/6) (-10/10). -(2/3) DOWNSTREAM OF DISCMARGE EAN AND RANGE BASED UPON DETECTABLE MEASUREENTS ONLY.

-- FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS 15 le!CATED IN PARENTNESES (F).

~

A6 -

l

+_ .. . -, . . . . .: i n- -

.. n . -- . . . - - - ~ . . . . .

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

l NAME OF FACILITY: i.IMERICK GENERATING STATION DOCKET No.: 50-352 & 50-353 LOCATION OF FACILITY: MONTGCMERY COUNTY, PA REPORTING PERIOD: 1993 INDICATOR CONTROL LOCATION WITN HIGHEST LOCATIONS ANNUAL MEAN NtM8ER REQUIRED LOCATIONS MEAN MEAN STATION # OF NONROUTINE MEDILM OR TYPE OF NUMBER OF LOWER LIMIT MEAN (F) NAME REPORTED PATHWAY SAMPLED ANALYSES ANALYSES OF DETECTION (F) (F) i RANGE RANGE DISTANCE & DIRECTION MEASUREMENTS RANGE

............. PERFORMED (UNIT OF MEASUREMENT) PERFORMED (LLD)

-6 -3 0 20S1 (INDICATOR) 0 CS-134 6 130 (4/4) (2/2) (2/2) Discharge Area

(-20/1) (-7/2) (-1/1) DOWNSTREAM OF DISCHARGE 8 6 to 16CS (INDICATOR) 0 CS-137 6 150 (4/4) (2/2) (2/2) Vincent Pool (5/11) (2/10) (9/11) DOWNSTREAM OF DISCHARGE SILT GAM A SPEC 0 BE-7 6 3.8 1.1 - 4.8 16C4 (INDICATOR)

(PCl/ GRAM DRY) Vincent Dam (4/4) (2/2) (2/2)

(1.8/7.8) (0.2/2.0) (1.8/7.8) DOWNSTREAM OF DISCHARGE 16 10.2 16 16C4 (INDICATOR) 0 K-40 6 (4/4) (2/2) (2/2) Vincent Dam (13/18) (9.0/11.3) (13/18) DOWNSTREAM OF DISCHARGE 0.03 -0.01 0.04 16C4 (Is tCATOR) 0 CO-60 6 (4/4) (2/2) (2/2) Vincent Dam (0.00/0.07) ( 0.02/0.00) (0.01/0.07) DOWNSTREAM OF DISCHARGE 0.15 0.06 0.04 0.07 1682- (INDICATOR) 0 CS-134 6 (4/4) (2/2) (2/2) LINFIELD BRIDGE (0.03/0.08) (0.03/0.06) (0.06/0.08) 1.1 MILES SSE OF SITE 0.26 0.06 0.31 1682 (INDICATOR) 0 CS-137 6 0.18 (4/4) (2/2) (2/2) LINFIELD BRIDGE (0.15/0.35) (0.04/0.08) (0.26/0.35) 1.1 MILES SSE OF SITE 6 2.7 2.1 2.8 1682 (INDICATOR) 0 RA-226 (4/4) (2/2) (2/2) LINFIELD BRIDGE (2.4/3.0) (1.9/2.2) (2.5/3.0) 1.1 MILES SSE OF SITE MEAN AND RANGE BASED UPON DETECTABLE MEASUREMENTS ONLY.

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F).

A-7 .

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.,_ . - - _. ______________a_____-____-_. _ _ _ _ _ _ _ . __:

APPEND!k A-RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

NAME OF FACILITY: LIMERICK GENERATING STATION DOCKET NO.: 50-352 & 50-353 LOCATION OF FACILITY: MONTGOMERY COUNTY, PA REPORTING PERIOD: 1993 INDICATOR CONTROL LOCATION WITN HIGHEST LOCATIONS LOCATIONS ANNUAL MEAN ~ NUMBER REQUIRED.

MEAN 'MEAN . STATION f 0F NONROUTINE MEDItst OR TYPE OF NUMBER OF LouER LIMIT MEAN (F) (F) NAME REPORTED PATHWAY SAMPLED ANALYSES ANALYSES OF DETECTION (F)

RANGE RANGE RANGE DISTANCE & DIRECTION MEASUREMENTS (UNIT OF MEASUREMENT) PERFORMED PERFORMED (LLD) 261 70 0 1 1 13H4 (CONTROL) 0 AIR ICDINE . 1-131 (E-3 PCl/CU. METER). (212/212) (49/49) (49/49) 2301 MARKET ST. (PHILA.)

(-12/13) (-25/15) (-25/15) 28.8 MILES SE OF SITE

-0.02 -0.01 -0.01 22C1 (INDICATOR) 0 MILK l-131 BY 100 1 (PCl/ LITER) RADIOCMEMISTRY (71/71) '(29/29)- (4/4) REGIONAL FARM

(-0.17/0.04) (-0.09/0.04) (-0.03/0.01) 3.0 MILES SW OF SITE GApetA SPEC 84 1400 1300 1500 2581 (telCATOR) 0

'K-40 N/A (63/63) (21/21) (2/2) REGIONAL FARM (1100/1600) (1200/1400) (1400/1600) 1.3 MILES WSW 0F SITE 15 0 0 0 18C1 (INDICATOR) 0 CS-134 (63/63) (21/21) (19/19) REGIONAL FARM

(-4/3) (-2/3) (-1/2) 1.9 MILES S OF SITE 18 2 2 22F1 (CONTROL) 0 CS-137 1 (63/63) (21/21) (21/21) REGIONAL FARM

(-1/3) (0/4) (0/4) 9.8 MILES SW OF SITE 60 -5 0 3 2581 (INDICATOR) 0 BA-140 (63/63) (21/21) (2/2) REGIONAL FARM

(-290/10) (-7/7) (2/4) 1.3 MILES WSW OF SITE h 15 0 0 0 1981 (INDICATOR) 0 LA-140 (63/63) -(21/21) (21/21) REGIONAL FARM

( 29/4) ~(-3/5) (-2/4) 1.9 MILES SSW OF $1TE MEAN AND RANGE BASED UPON DETECTA8LE MEASUREMENTS ONLY.

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS IISICATED IN PARENTHESES (F).

A -!9 ,

APPENDIX A RADIOLOGICAL ENVIRONENTAL MONITORING PROGRAM ANNUAL SLpetARY NAME OF FACILITY: LIMERICK GENERATING STATION DOCKET NO.: 50-352 & $0-353 LOCATION OF FACILITY: MONTGOMERY COUNTY, PA REPORTING PERIOD: 1993 INDICATOR CONTROL LOCATION WITH HIGNEST LOCAfl0NS ANNUAL MEAN NUMBER REQUIRED LOCAfl0NS MEAN MEAN. STATION # OF NONROUTINE EDILM OR TYPE OF MlmtER OF LOER LIMIT MEAN REPORTED PATHWAY SAMPLED ANALYSES. ANALYSES OF DETECTION (F) (F) (F) NAME RANGE -RANGE DISTANCE & DIRECTION- MEASUREMENTS ,

PERFORMED (LLD) RANGE  ;

(UNIT OF EASUREMENT) PERFORMED

-0.01 -0.01 1081 (INDICATOR) 0

' GOAT MILK 1-131 BY 21 1 (PCl/ LITER RADIOCHEMISTRY (21/21) (21/21) REGIONAL FARM

(-0.16/0.07) (-0.16/0.07) 1.1 MILES ESE OF SITE GAMMA SPEC 21 1600 1081 (INDICATOR) 0.

K-40 N/A 1600 (21/21) (21/21) REGIONAL FARM (1200/2500) (1200/2500) 1.1 MILES ESE OF SITE 0 1081 (INDICATOR) 0 CS 134 15 0 (21/21) (21/21) REGIONAL FARM

(-5/3) (-5/3) 1.1 MILES ESE OF SITE 2 1081 (INDICATOR) 0 CS-137 18 2 (21/21) (21/21) REGIONAL FARM

.(-1/6) (-1/6) 1.1 MILES ESE OF SITE 1 1081 (INDICATOR) 0 SA-140 60 1 (21/21) (21/21) REGIONAL FARM

!- (-6/9) ( 6/9) 1.1 MILES ESE OF SITE 1 1081 (INDICATOR) 0 LA-140 15 1 (21/21) (21/21) REGIONAL FARM

(-2/5) '(-2/5) 1.1 MILES ESE OF SITE TLD-MONTMLY 576 N/A 7.11 6.82 8.75 SR1 (CONTROL)

DIRECT RADIATION (516/516) (60/60) (12/12) BIRCH SL4 STATION (MILLI ROENTGEN /

STD. MONTN) (4.90/12.70) (4.10/10.90)-(7.70/10.90) 25.8 MILES NE OF SITE TLD-ouARTERLY. 192 N/A 6.09 5.78 7.55 5H1 (CONTROL)

(172/172) (20/20) (4/4) SIRCH SUBSTATION (3.90/7.70) (4.00/8.30)- (6.40/8.30)~ 25.8 MILES NE OF SITE

~

MEAN AND RANGE BASED UPOW DETECTABLE E ASUREMENTS ONLY. ~

FRACTION OF DETECTABLE ME45UREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTNESES (F).

~A - 10 ,

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SAMPLE DESIGNATION AND LOCATIONS 1

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t APPENDIX B: SAMPLE DESIGNATION AND LOCATIONS LIST OF TABLES AND FIGURES TABLES TABLE B-I: Location Designation and Identification System for the Limerick Generating Station TABLE B-II: Sample Collection and Analysis Program for the Operational Radiological Environmental Monitoring Program, Limerick Generating Station, 1993 FIGURES FIGURE B-1: Environmental Sampling Locations on site or near the Limerick Generating Station FIGURE B-2: Airborne and TLD Environmental Sampling Stations at Intermediate Distances from the Limerick Generating Station FIGURE B-3: Aquatic and Terrestrial Environmental. Stations at Intermediate Distances from the Limerick Generating Station FIGURE B-4: Environmental Sampling Stations at Remote Distances from the Limerick Generating Station l

l l

B-i

TABLE B-I: Location Designation and Identification System for the Limerick Generating Station XMZ - 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 off-gas vent. Sector 36 is centered due North, and others are numbered in a clockwise direction.

1 - 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 Humerical Designation within sector and zone, using 1, 2, 3... in each sector and zone.

1 1

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TABLE B-II: Sample Collection and Analysis Program for the Radiological Environmental Monitoring _ Program for Limerick Generating Station, 1993 Location Location Distance & Collection Method Analysis & Frequency Description Direction and Frequency Performed--Consultant A. Surface Water 10F2 Perkfomen Ptrping 7.1 miles E Two gatton sanple collected from a G. Beta (SSI) - monthly - TB Station (control) continuous water sanpler, monthly Gama spec - monthly - TB  !

Trittun - quarterly conp. - TB G. Beta ($11) - renthly - PSEG*

Genma Spec - monthly - PSEG*

1381 Vincent Dam 1.8 miles ESE Same as 10F2 Same as 10F2 (indicator) 2451 Limerick Intake 0.3 miles $$W Same as 10F2 Sane as 10F2 (control)

B. Drinkino (Potable) Water 13M2 Belmont Water Works 25.5 miles SE Two gatton cmsite sanple cottected t Beta (S11) - monthly - T8 l

(Indicator) fron a continuous water sanpler, Gamma Spec - monthly - TB monthly Tritius - quarterly conp. - TB Phltadelphia 7.8 miles SSE Same as 13H2 Same as 13H2 15F4 Suburban Water Conpany (indicator) 15F7 Phoenixvitte Water 5.2 miles SSE Same as 13H2 Same as 13H2 l

I vorks (indicator) 16C2 Citizens Home Water 2.4 miles SSE Two gallon cceposite sanple collected $sme as 13H2 Conpany. (indicator) by weekly grab sanples, monthly B-2

TABLE.B-II:. LSample Collection and' Analysis Program for the Radiological Environmental Monitoring Program for -

Limerick Generating Station, 1993-Location Location Distance & Collection Method Analysis & Frequency Description Direction and Frequency Performed--Consultant 28F3- Pottstown Water 5.9 miles WNW Same as 13M2 Same as 13H2 Authority (controt)

C. Cow's Milk 36E1 4.7 miles N Two gattons processed milk purchased 1-131 quarterly - T8 cp;arterly at farm dairy store 9G1 Control 11.4 miles E Two gallon grab senple collected from same as 36E1 bulk tank at fare quarterly 18C1 1.9 miles S two gatton grab senple collected from . 1-131 - biweekly - TB

"; ". tank at-farm bi-weekly during Genna Spec - biweekly - TB

+ azing censon (Aprit through November); monthly otherwise 1981 1.9 miles SSW Same as 18C1 I-131 - biweekly

  • TB Genna Spec - biweekly - TB I-131 - quarterly - PSEG*-

Ganum Spec - cyJarterly - PSE3*

2181 1.7 miles SW Same as~18C1 Same as 1981 22C1 3.0 miles SW Same as 9G1 Same as 36E1 22F1 .Controt- 9.8 miles SW Same as 15C1 Same as 1981

-2581 1.3 mites WSW Same as 18C1- Same as 18C1 25C1 2.7 miles WSu- Same as.18C1- Same as.18C1 w

B-3

,a . _ - .. . ,

.i TABLE B-II: Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program for Limerick Generating Station, 1993 Location location Distance & Collection Method Analysis & Frequency Description Direction and Frequency Performed--Consultant D. Goat's Milk 1081 1.1 mile ESE Two gallon grab sag te purchased at I-131 - biweekly - TB goat fana, blueekly during grazing Game Spec - biweekly - TB season (Aprit through Ncvember);

I monthly otherwise i E. Air Particulates / Air Iodine I 281 Sanatoga substation 1.5 miles NNE Approximately 1 cfm continuous flow G. Beta - weekly - TB through glass fiber and charcoat I-131 - if necessary filters (approx. 2" diameter) which are instatted for one week and replaced 6C1 Pottstown Landing 2.1 miles ENE Same as 281 Same as 281 j

1 Field 9C1 Reed Road 2.2 miles E Same as 281 Same as 291 Keen Road 0.5 miles E Same as 281 G. Seta - weekly - TB 1053 Gama Spec - quarterly com. - TB I-131 - weekly - TB list LGS Information 0.5 miles ESE Same as 281 Same as 1053 Center 1152 LGS Information 0.5 miles ESE Same as 281 G. Beta - weekly - PSEG*

Center Game Spec - quer com - PSEG*

13C1 King Road 2.9 miles SE Same as 281 Same as 10S3

-13H4 2301 Market St., 28.8 miles SE Same as 281 Same as 1053 Philadelphia (control) 14S1 Longview Road 0.6 miles SE Same as 281 Same as 1053 B-4

1 TABLE B-II: Sample Collectien and Analysis Prograa for the Radiological Environmental Monitoring Prograa fcr Limerick G:nerating Station, 1993 Location Location Distance & Collection Method Analysis & Frequency Description Direction and Frequency Performed--Consultant 1452 Longvlew Road 0.6 miles SE same as 231 same as 1152 1501 spring City 3.2 miles SE same as 251 same as 231 sthstation 1781 Linfletd 5(1 station 1.6 miles s same as 231 same as 281 EttIs Wood Road 3.1 alies ssW same as 281 same as 281 20D1 Manor substation 17.6 miles SV same as 281 same as 281 22G1 (control) cid schuylkill Road 1.7 miles W same as 281 same as 281 2681 Vost Road 1.8 miles W same as 2B1 same as 281 2981 Lincoln stbstation 3.0 miles W same as 281 same as 281 31D1 Met. Yower #1 0.6 miles NW same as 281 same as 281 3452 3581 Pleasantview Road 1.9 elles NW Same as 281 sane as 281 F. Fish 16C5 Vincent Pool Downstrema of Fish flesh from two groups Gamme spec - semiamually - TS (trxilcator) Dischar;;a representing predator and bottom feeder species collected by electroffsher or other appropriate fishery gear, semiamually Discharge Area Downstream of same as 16CS same as 16c5 20s1 (Indicator) Discharge Pottstown Vicinity Upstream of same as 16C5 same as 16c5 29C1 (control) Intake

~

B-5

. _ - _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ = - _ . _ - -.. _

TABLE B-II: Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program for Limerick Generating Station, 1993 Location Distance & Collection Method Analysis & Frequency Location.

Description Direction and Frequency Performed--Consultant G. Sediment Linfletd Bridge cowstream of Recently deposited sediment collected canna spec - semismuetly - TB 1682 (Indicator) Discharge below the watertine, semi-smuetty counstream of Same as 1682 Same as 1662 16C4 Vicent Dam (indicator) Discharge Upstream of Same as 1682 Same as 1682 33A2 control Discharge H. Environmental Desimetry - TLD 0.6 miles N Cottection method and frequency is TLD - monthly - TB 36S2 Evergreen & Sana *oga TLD - quarterly - TB Road described in placement procedure Section III, A.

Same as 3652 Same as 3652 2s1 Senatoga Sttstation 1.5 miles NNE 5.1 miles #NE Same as 3652 Same as 3652 2E1 Laughing Waters GSC 0.6 miles NttE Same as 3652 Sevne as 3652 351 Sanatoga Road 4.6 miles NE Same as 3652 Same as 3652 4E1 Nef f fer Road 0.4 miles NE Same as 36S2 Same as 3652 551 Possus Hollow Road 25.8 miles NE Same as 36S2 Same as 3652 5H1 Birch Stbstation Same as 3652 Same as 3652 601 Pottstown Landing 2.1 miles ENE Fletd Same as 3652 Same as 3652 751 LGS Training Center 0.5 miles ENE 4.2 miles ENE Same as 36S2 Same as 3652 7E1 Pheasant Road 2.2 miles E Same as 36S2 Same as 3652 9C1 Reed Road B-6

- - z_-.. 1 __ __.

=

TABLE B-II: Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program for Limerick Generating Station, 1993 i

Location Location Distance & Collection Method Analysis & Frequency Description Direction and Frequency Performed--Consultant 1053 Ke m Road 0.5 miles E Same as 3652 Same as 3652 10E1 Royereford Road 3.9 miles E Same as 3652 Same as 36S2  ;

10F3 Tragpe Substation 5.5 miles ESE Same as 36S2 Same as 3652 1151 LCS Infonnation 0.5 miles ESE Same as 36S2 Same as 3652 Center l

13C1 King Road 2.9 miles SE Same as 3652 Same as 3652 13E1 Vaughn Stbstation 4.3 miles SE Same as 3652 Same as 3652 13H4 2301 Market Street 28.8 miles SE Same as 3652 Same as 3652 Philadelgttia, (control) 1451 Longview Road 0.6 miles SE Same as 3652 Same as 3652 j 1501 Spring City 3.2 miles SE Same as 36S2 Same as 3652 Substation 1652 Longview Road 0.6 miles SSE Same as 36S2 Same as 3652 16F1 Pikeland Substation 4.9 miles SSE Same as 36S2 Same as 36S2 17B1 Linfletd Sibstation 1.6 miles S Same ss 3652 Same as 36S2 18S1 Rail Line along 0.3 miles S Same as 36S2 Same as 36S2 Longview Road 18G1 Ptanebrook 12.9 mites S Same as 36S2 Same as 36S2 Substation 1901 Snowden Substation 3.6 miles 5 Same as 36S2 Same as 3652 2001 ELLis Woods Road 3.1 miles SSW Same as 3652 Same as 3652 B-7 l

TABLE B-II: Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program for.

Limerick Generating Station, 1993 Location Location Distance & Collection Method Analysis & Frequency Description Direction and Frequency Performed--Consultant 20F1 Sheeder stbstation 5.2 miles ssW Same as 36s2 sare as 3652 2131 inpound Basin 0.5 miles ssW Same as 36s2 same as 3652 22C1 Manor substation 17.6 miles SW Same as 3652 same as 36s2 23s2 Transmission Tower 0.5 miles vsv same as 3652 same as 36S2 2401 Porters Mitt 3.9 miles SW same as 36s2 same as 3652 stbstation 25s1 sector site Boundary 0.5 miles sW same as 36s2 same as 36s2 2501 Hoffecker & Keim 4.0 miles vsv Same as 3652 same as 3652 streets 26S3 Met. Tower #2 0.4 miles W same as 3652 same as 36s2 2681 Old schuylkill Road 1.7 miles W same as 36s2 same as 3652 28D2 W. cedarville Road 3.8 miles W Same as 36s2 same as 36s2 2951 sector site Boundary 0.5 miles WW same as 36s2 same as 3652 2991 Yost Road ' 1.8 miles W Same as 3652 same as 3652 29E1 Prince street 4.9 miles WW Same as 3652 same as 36s2 31D1 Lincoln substation 3.0 miles W Same as 3652 same as 36s2 3102 Poplar stbstation 3.9 miles W same as 3652 same as 36S2 3251 sector site Boundary 0.6 miles NW same as 3652 same as 36s2 32G1 Friendensburg 15.6 miles NW same as 3652 same as 36s2 substation 34s2 Met. Tower #1 ~0.6 miles a w same as 36s2 same as 36s2 B-8

TABLE B-II: Sample Collecticn and Analysis Prograa for the Radiological Environmental Monitoring Progra_1 for Limerick Generating St4 tion, 1993 Location. Location Distance & Collection Method Analysis & Frequency Description Direction and Frequency Performed--Consultant 34E1 Vernett Road 4.6 miles WW Same as 3652 Same as 36s2 3581 Pteesentville Road 1.9 miles WW Same as 3652 same as 36S2 35F1 Ringing Rock 4.2 miles N same as 3652 Same is 36S2 Sthstation l

  • CC Laboratory l

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_ = _ - - - - _ - _ -___:__~

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' FIGURE B-1 ENVIRONMENTAL SAMPLING LOCATIONS ON-SITE'OR NhA THE~ LIMERICK GENERATING STATION,1993 j N a NNW NNE j NW /5'3 S2 NE 3 S2

\ J 1

WN 3 1 / ENE H 29 1

\ '

s1 '

7S 1 '

w E 23S3 x 1oSp 1

l 23 g3 WSW g ( 1 ESE NSS .

SW j S SE'

/

SSW -

SSE w$

SITE BOUNDARY 36S2 EVERGREEN & SANATOGA RD. 20S1 LGS DISCHARGE AREA.

3S1 SANATOGA RD. 21S1 LGS IMPOUNDING BASIN 5S1 POSSUM HOLLOW RD. 23S2 TRANSMISSION TOWER 7S1 LGS TRAINING CENTER 24S1 LGS INTAKE 10S3 KEEN RD. 25S1 SW SECTOR ,

11S1 LGS INFORMATION CNTR. 26S3 MET. TOWER #2 14S1 LONGVIEW RD. 29S1 WNW SECTOR

'16S2 LONGVIEW RD. 32S1 NW SECTOR' 18S1 RAILROAD TRACKS 34S2 MET. TOWER #1

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ . _ _ _ . _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _~ - -

__ -- , -- a E--

FIGU RE : B-2 '

' AIRBORNE AND.TLD ENVIRONMENTAL' SAMPLING LOCATIONS-AT INTERMEDIATE DISTANCES'FROM LIMERICK GENERATING STATION,1993 -

N NNW -

NNE-F NW NE e

5F1 2E1 l 34E1 .

WNW

  • 4E1
  • ENE 1D2e -;

E 31 e 9E1 5 1* 7E1 2 6 -e 29 W 28D2 E-C1 25D1 *- e 10E 7- 3 10F3 e

  • 15 2 1 .*

WSW 19 1 ESE 20F1 16Fg [

SW SE i SSW -SSE -l

-S l ten mile radius 281 SANATOGA SUBSTATION 13E1 VAUGHN ROAD 26B1 OLD SCHUYLKILL'RD 2E1 ' LAUGHING WATERS GSC 15D1 SPRING. CITY SUBSTATION 1D2 W. CEDARVILLE RD j

- 4E1. NElFFER ROAD 16F1 PlKELAND SUBSTATION i181 YOST ROAD j

~6C1 POTTSTOWN AIRPORT 1781 LINFIELD SUBSTATION ' JE1 HIGH SUBSTATION ' 'l -

7E1 PHEASANT ROAD 19D1 SNOWDEN SUBSTATION 31D1 LINCOLN SUBSTATION SC1 - REED ROAD . 20D1 ELLIS WOODS ROAD 31D2 POPLAR SUBSTATION 10E1 ROYERSFORD ROAD 20F1 SHEEDER SUBSTATION - 34E1 YARNELL ROAD

- 10F3 TRAPPE SUBSTATION 24D1 PORTERS MILL SUBSTATION 35B1 PLEASANTVILLE RD- .

13C1 KING ROAD 25D1 HOFFECKER & KEIM ST.- 35F1 RINGING ROCKS SUB ~ .

q s , - -

FIGURE B-3 AQUATIC AND TERRESTRIAL ENVIRONMENTAL SAMPLING LOCATIONS AT INTERMEDIATE DISTANCES FROM LIMERICK GENERATING STATION,1993 N

NNW NNE NW NE 6E1 e

WNW ENE-28F3 3 2 W 29c1 1oF2 E

. 2, e N,3ag, 2 25C1 381 e 6 5

'88

SSE S

ten mile radius 10B1 FARM IN ESE SECTOR 19B1 FARM IN SSW SECTOR 10F2 PERKlOMEN CREEK 2181 FARM IN SW SECTOR 1381 VINCENT DAM 22C1 FARM IN SW SECTOR 15F4 PHIL. SUB. WATER CO. 22F1 FARM IN SW SECTOR 15F7 PHOENIXVILLE WATER CO. 25B1 FARM IN WSW SECTOR 1682 LINFIELD BRIDGE 25C1 FARM IN WSW SECTOR -

16C2 CITIZENS HOME WATER CO. 28F3 POTTSTOWN WATER AUTH.

16C4 VINCENT POOL 29C1 POTTSTOWN VICINITY 16CS VINCENT POOL 33A2 UPSTREAM OF LGS ,

18C1 FARM IN S SECTOR 36E1 FARM IN N SECTOR '

FIGURE B-4 - '

ENVIRONMENTAL SAMPLING LOCATIONS AT REMOTE DISTANCES-FROM LIMERICK GENERATING STATION,1993 N

NNW NNE NW NE. l e

SH1 ..

WNW-G1 1

'W e9G1 E -

WSW 22G1 13H2 -:

1 G1 H4. . . . . . . . 1 SW SE-SSW SSE j fifty mile radius

'I 5H1 BIRCH SUBSTATION 9G1 ' FARM IN E SECTOR ' l 13H2 BELMONT WATER WORKS 13H4 PECo BUILDING 18G1 PLANEBROOK SUBSTATION ]

22G1 MANOR SUBSTATION

')

32G1 FRIEDENBERG SUBSTATION ,

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DATA T iBLES AND FIGURES PRIMARY LABORATORY ,

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APPENDIX C: DATA TABLES AND FIGURES - PRIMARY LABORATORY TABLES Table C-I.1 Concentrations of Gross Beta Insoluble in Surface Water Samples Collected in the Vicinity of Limerick Generating Station,1993.

Table C-1.2 Concentrations of Gross Beta Soluble in Surface Water Samples Collected in the Vicinity of Limerick Generating Station,1993.

Table C-I.3 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Limerick Generating Station,1993.

Table C-1.4 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Limerick Generating Station,1993.

Table C-II.1 Concentrations of Gross Beta Insoluble in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 1993.

Table C-II.2 Concentrations of Gross Beta Soluble in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station,1993.

Table C-II.3 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station,1993.

Table C-II.4 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Limerick Generating Station,1993.

Table C-III.1 Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Limerick Generating Station,1993.

Table C-IV.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Limerick Generating Station,1993.

Table C-V.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station,1993. l 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,1993.

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Table C-V.3 Concentrations of Gamma Emitters in Air Particulate Samples

. Collected in the Vicinity of Limerick Generating Station,1993.

Table C-VI.1 Concentrations of I 131 in Air Iodine Samples Collected in the Vicinity of Limerick Generating Station,1993. .

Table C-Vil.1 Concentrations of 1-131 in Milk Samples Collected in the Vicinity of Limerick Generating Station,1993.

Table C-VII.2 Concentrations of Gamma Emitters in Milk Samples Collected in -

the Vicinity of Limerick Generating Station,1993.

Table C-Vill.1 Monthly TLD Results for Limerick Generating Station,1993.

Table C-VIII.2 Quarterly TLD Results for Limerick Generating Station,'1993.

Table C-VIII.3 Mean TLD Results for the Limerick Generating Station Site Boundary, Middle and Outer Rings,1993.

Table C-Vill.4 Summary of the Ambient Dosimetry Program for Limerick-Generating Station,1993.

Table C-IX.1 Summary of Collection Dates for Samples Collected in the Vicinity of Limerick Generating Station,1993.

l FIGURES Figure C-1 Mean Monthly Insoluble Gross Beta Concentrations in Surface Water Samples Collected in the Vicinity of LGS, 1982-1993. .

Figure C-2 Mean Monthly Soluble Gross Beta Concentrations in Surface Water Samples Collected in the Vicinity of LOS,-1982-1993.

Figure C-3 Mean Monthly Insoluble Gross Beta Concentrations in Drinking L Water Samples Collected in the Vicinity of LGS, 1982-1993.

Figure C-4 Mean Monthly Soluble Gross Beta Concentrations in Drinking L Water Samples Collected in the Vicinity.of LGS, 1982-1993.

Figure C-5 Mean Annual Cs-137 Concentrations in Fish Samples Collected in -

l.

! the Vicinity of LGS,. 1982-1993.

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Figure C-6 Concentrations of Cs-137 in Sediment Samples Collected in the Vicinity of LGS, 1982-1993. )

i Figure C-7 Mean Weekly Gross Beta Concentrations in Air Particulate i Samples Collected in the Vicinity of LGS.1993.

Figure C-8 Mean Monthly Gross Beta Concentrations in' Air Particulate Samples collected in the Vicinity of LGS, 1982-1993.

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Figure C-9 Comparison of Mean Monthly Cesium-137 Values in Milk 1

Samples Collected in the Vicinity of LGS, 1982-1993.

Figure C-10 Mean Monthly Ambient Gamma Radiation Levels in the Vicinity of LGS,1982-1993.

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TABLE C-I.1 CONCENTRATIONS OF GROSS BETA INSOLUBLE IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION,-1993 RESULTS IN UNITS OF PCI/ LITER t 2 SIGMA COLLECTION 10F2 13B1 24S1 PERIOD JAN 93 0.6 z 0.5 0.3 2 0.5 0.1 e 0.5 FEB 93 0.2 2 0.5 0.2 0.5 0.4 2 0.5 MAR 93 1.1 2 0.7 1.7 2 0.7 0.9 2 0.6 APR 93 0.3 2 0.5 0.5 2 0.5 0.5 2 0.5 MAY 93 0.0 a 0.4 1.8 2 0.6 0.1 s 0.4 JUN 93- 1.0 2 0.5 11 2 1 0.4 2 0.5 JUL 93 2.6 2 0.7 4.6 0.9 0.0 s 0.4 AUG 93 2.0 s 0.6 0.6 0.5 0.6 0.5-SEP 93 0.7 e 0.5 1.2 2 0.5 0.5

  • 0.5 OCT 93 0.2 2 0.5 0.9 2 0.5 0.8
  • 0.5 NOV 93 0.1 2 0.5 9
  • 1 -0.2 2 0.5 DEC 93 0.1 2 0.5 1.7 2 0.7 1.1 2 0.6 MEAN 0.8 1.6 2.8 2 7.2 0.4 s 0.8 TABLE C-I.2 CONCENTRATIONS OF GROSS BETA SOLUBLE IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF PCI/LI*IER s 2 SIGMA COLLECTION 10F2 13B1 2481 PERIOD JAN 93 6 t 1 3.0 a 1.0 3 2 1 FEB 93 10 1 5 s1 5 z1 MAR 93 9 1 5 1 3 e1 APR 93 4.1
  • 0.9 2.5 2 0.8 3.3
  • 0.9 MAY 93 7 2 1 4 2 1 3 2 1 JUN 93 7 2 1 6 e1 6 2 1 JUL 93 6 2 1 6 2 1 7 2 1 AUG 93 7 2 1 8 2 8 a1 SEP 93 7 s1 9 2 1 5 s1 OCT 93 10 2 1 7 1 6 2 1 NOV 93 7 $ 1 7
  • 1 6 2 1 DEC 93 5
  • 1 4 2 1 2.1 a 0.9 l

MEAN 7.1 s 3.6 5.5 2 4.0 4.8 s 3.8  :

i TABLE C-I.3 CONCENTRATIONS OF TRITIUM IN SURPACE WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF PCI/ LITER t 2 SIGMA  ;

1 COLLECTION 10F2 13B1 24S1 i PERIOD ]

JAN-MAR 93 -30 t 70 40 2 80 -20

  • 70 i APR-JUN 93 20 a 90 -10
  • 90 50 2 90 'I JUL-SEP 93 40 2 60 60 s 60 90 60 i

-100 a 100 I OCT-DEC 93 -200

  • 100 0 z 100 MEAN -30
  • 190 20 60 10
  • 130 C-1 i

TABLE C-I.4 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES

! COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 i

RESULTS IN UNITS OF PCI/ LITER 2 2 SIGMA COLLECTION K-40 MN-54 Co-58 FE-59 Co-60 ZN-65 BTC PERIOD 10F2 JAN 93 8 2 5 0.1 2 0.4 0.2 2 0.4 0.5 2 0.9 0.1 2 0.4 -0.8 2 0.8

, FEB 93 1 2 5 -0.1 2 0.4 -0.2 2 0.4 0.1 2 1.0 0.0 2 0.4 0.3 2 0.9

! MAR 93 16 e7 0.5 2 0.5 0.4 2 0.6 0 2 1 0.0 2 0.5 0 2 1 APR 93 0 z 5 0.4 2 0.3 0.0 2 0.4 0.3 2 0.8 0.2 2 0.3 0.2 2 0.7 MAY 93 -1 2 6 -0.8 2 0.4 -0.2 2 0.4 0.2 2 0.9 0.0 2 0.4 -0.3 2 0.9 l JUN 93 6 2 5 0.4 2 0.3 -0.1 2 0.4 0.3 2 0.8 0.3 2 0.4 0.1 2 0.7 i JUL 93 -120 2 10 0.0 2 0.5 -G.6 2 0.5 0 2 1 0.5 2 0.5 1 2 1

! AUG 93 17 2 7 0.0 2 0.5 0.0 2 0.5 0 2 1 -0.2 2 0.5 -1 2 1 I

SEP 93 9 2 6 0.3 2 0.5 -0.2 0.5 1 2 1 0.1 2 0.5 0 2 1 OCT 93 -3 2 6 0.1 2 0.4 0.0 2 0.5 1 2 1 0.0 2 0.4 -0.1 2 1.0 NOV 93 -10 2 10 0.5 0.6 -0.5 2 0.6 0 2 1 0.4 0.5 0 2 1 DEC 93 -5 2 7 0.2 2 0.4 0.0 0.4 1 2 1 0.9 2 0.5 0 2 1 l t j MEAN -7 2 73 0.1 2 0.7 -0.1 2 C.5 0.4 2 0.6 0.2 2 0.6 -0.1 2 1.1 13B1 JAN 93 -10 2 7 0.4 2 0.4 -0.2 2 0.4 0.6 2 0.9 0.0 2 0.4 -0.5 2 0.9 FEB 93 -28 2 8 -0.1 2 0.4 0.0 2 0.5 0 e1 0.2 2 0.4 -0.1 0.9 MAR 93 -6 -2 7 0.1 2 0.4 0.1 2 0.4 0.3 2 1.0 0.2 2 0.4 -0.3 2 0.9 APR 93 -5 2 5 0.1 2 0.4 -0.1

  • 0.4 0.0 2 1.0 -0.1 2 0.4 0.8
  • 0.8 MAY 93 1 2 6 -0.1 0.4 0.0 2 0.4 -0.2 2 0.8 0.2 2 0.4 0.0 2 0.8 JUN 93 -8 2 7 0.1 2 0.4 -0.1 2 0.4 -0.1 2 0.8 0.4 2 0.4 -0.3 2 0.8 <

JUL 93 -2 2 7 -0.1 2 0.5 -0.2 2 0.5 0 2 1 0.4 2 0.6 1 2 1 AUG 93 9 2 6 0.1 2 0.5 -0.7

  • 0.5 0 2 1 0.1 2 0.5 0 2 1 '

SEP 93 17 2 6 0.1 2 0.5 0.8 2 0.6 0 *1 -0.1 2 0.5 0 2 1 OCT 93 -12 2 9 0.2 2 0.4 -0.1 2 0.5 -1 2 1 -0.4 2 0.4 1 2 1 NOV 93 30 2 8 0.2 2 0.6 -0.2 2 0.6 0 2 1 -0.2 2 0.6 0 2 1 DEC 93 -10 2 10 0.1 2 0.6 -0.5 2 0.6 1 2 1 -0.1 2 0.6 1 2 1 MEAN -2 2 30 0.1 2 0.3 -0.1 2 0.7 0.1 2 0.9 0.1 2 0.5 0.2 z 1.0 24S1 JAN 93 -10 6 0.1 2 0.4 0.0 2 0.4 0.6 2 0.9 0.1 2 0.4 -1.0 2 0.9 FEB 93 -17 2 7 0.1 2 0.4 0.0 2 0.5 0 2 1 0.0 2 0.5 0.5 2 1.0 MAR 93- ~2 2 6 0.3 0.4 0.2 0.5 0.3 2 1.0 0.1 2 0.4 0.0 2 0.9 APR 93 -14 2 8 0.6 2 0.4 -0.1 2 0.5 0.4 2 1.0 0.5 2 0.4 0.5

  • 0.9 MAY 93 -4 - 2. 6 -0.7 2 0.5 0.4 2 0.5 0 2 1 0.2- 2 0.5 0.1 2 1.0 JUN 93 -12
  • 6 0.3 0.4 0.2 2 0.4 0.4 2 0.9 0.1 2 0.4 1.1 2 0.8 JUL 93 1 2 7 0.0 2 0.4 -0.1 2 0.4 -1 2 1 0.6 2 0.4 0.9 m 0.8 AUG 93 -3 2 7 0.1 0.5 0.1 2 0.5 0 2 1 0.4 2 0.5 0 2 1

-SEP 93 0 2 10 0.5 2 0.6 0.2 2 0.6 0 1 0.5 2 0.6 1 2 1 OCT 93 -20 2 10 0.1 2 0.5 -0.2 2 0.6 0 2 1 0.4

  • 0.5 0 2 1 NOV 93 -2 2 6 -0.1 2-0.4 0.0 2 0.4 0.7 2 0.9 -0.3 0.4 -1.1 2 0.8 DEC 93 .14 2 7 0.4 2 0.6 -0.7 2 0.6 1 2 1 -0.1 2 0.6 0 2 1 MEAN -5 2 18 0.1 2 0.7 0.0 2 0.6 0.2 2 0.8 0.3 2 0.4 0.1 1.4 C-2

TLBLE C-I.4 CONOENTRATZONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VZCINZTY OF LIMERICK GENERATZNG STATZON, 1993 RESULTS IN UNITS OF PCI/ LITER z 2 SIGMA COLLECTION ZR-95 NB-95 CS-134 CS-137 BA-140 LA-140 STC PERIOD 10F2 JAN 93 1.2 2 0.9 0.2 2 0.4 0.2 2 0.4 0.4 2 0.4 2 e2 0.0 2 0.8 FEB 93 0.1 2 0.8 0.5 2 0.4 -0.3 z 0.4 -0.2 2 0.4 2 2 2 1 2 1 MAR 93 0 2 1 0.6 2 0.6 0.6 z 0.5 0.0 2 0.5 -1 2 4 0 2 1 APR 93 -0.6 2 0.7 0.2 2 0.4 0.3 2 0.3 -0.1 2 0.4 -1 2 2 1 2 1 MAY 93 0.7 2'O.9 0.1 2 0.4 0.2 2 0.4 0.0 2 0.5 0 2 2 0.2 2 0.9 JUN 93 0.3 2 0.7 0.2 2 0.4 0.1 2 0.4 -0.1 2 0.4 0 2 2 -0.2 2 0.7 JUL 93 2 2 1 0.2 2 0.6 0.0 2 0.5 -1.1 c.0.5 -2 2 4 0 2 1 AUG 93 0 z 1 0.5 0.6 0.2 2 0.5 0.1 2 0.5 -1 4 1 2 2 SEP 93 1 2 1 0.3 2 0.5 -0.2 2 0.5 0.3 2 0.5 0 2 2 -0.8 2 0.9 OCT 93 1 2 1 0.4 2 0.5 -0.2 2 0.4 0.1 2 0.4 0 2 4 -1 2 2 NOV 93 -2 2 1 0.4 2 0.6 0.1 2 0.6 0.3 2 0.6 0 2 3 -1 2 1 DEC 93 0 2 1 0.2 2 0.5 -0.1 2 0.5 0.1 2 0.5 1 2 2 0 z 1 MEAN 0.3 2 2.0 0.3 2 0.3 0.1 2 0.5 0.0 0.8 0 2 2 0.0 2 1.2 13B1 JAN 93 0.8 2 0.9 0.5 2 0.4 -0.5 2 0.4 0.3 2 0.4 1 2 2 -0.5 2 0.7 FEB 93 0.6 2 1.0 0.3 i 0.5 0.0

  • 0.4 0.2 2 0.5 0 2 3 1 2 1 MAR 93 -0.4 2 0.9 0.2 2 0.5 -0.4 2 0.4 0.0 2 0.4 2 2 3 0 2 1 APR 93 0.4 2 0.8 -0.1 2 0.4 -0.3 2 0.4 0.1 2 0.4 0 2 2 0 1 MAY 93 -0.8 2 0.8 0.3 2 0.4 0.1 2 0.4 0.0 2 0.4 1 2 -0.3 2 0.8 JUN 93 0.7 2 0.8 0.4 2 0.4 -0.2 2 0.4 0.5 2 0.4 -1 z2 0.5 2 0.7 JUL 93 1 2 1 0.6 2 0.6 0.6 2 0.5 0.3 2 0.5 0 2 4 0 2 2 AUG 93 0 2 1 0.2 2 0.5 -0.1 2 0.5 -0.2 2 0.5 2 2 3 -1 1 SEP 93 1 s1 0.5 0.6 0.2 2 0.6 0.1 2 0.6 2 2 2 0.2 2 0.9 OCT 93- 1 2 1 0.6 2 0.5 -0.2 2 0.5 0.4 2 0.5 0 2 4 -2 2 1 NOV 93 3 e1 -0.4 2 0.7 -0.1 z 0.6 0.2 2 0.6 0 2 3 0 m1 DEC 93 0 e1 0.3 2 0.6 0.2 2 0.6 0.1 2 0.6 1 2 3 -1 2 1 MEAN 0.6 2 1.9 0.3 2 0.6. -0.1 2 0.6 0.2 2 0.4 1 2 2 -0.3 2 1.3 24S1 JAN 9 3 - 0.5 2 0.9 0.2 2 0.4 0.3 2 0.5 0.2 2 0.4 -1 2 2 -0.4 2 0.9 FEB 93 1 2 1 0.4 2 0.5 0.0 2 0.4 0.5 2 0.5 -1 2 3 -1 2 1 MAR 93 0.6 2 0.9 0.1 2 0.5 0.2
  • 0.4 0.1 2 0.4 0 3 0 2 1 APR 93 1. 2 1 0.1 2 0.5 -0.1 2 0.4 0.2 2 0.4 0 z 3 0 2 1 '

MAY 93 1 2 1 . 0.4 z 0.5 0.5 2 0.5 0.2 2 0.6 -1 2 3 -1 2 1 JUN 93 0.1 0.9 0.5 z 0.4 -0.2 2 0.4 0.5 2 0.4 0 2 2 0.5 2 0.8 JUL 93 0 2 1 0.2 2 0.5 0.1 2 0.4 0.3 2 0.4' 1 2 3 -1 2 1 AUG 93 0 2 1 0.3 0.5 0.2 2 0.5 0.1

  • 0.5 1, m4 0 2 1 SEP 93 2 2 1 0.6 2 0.6 -0.3 2 0.6 0.4 2 0.6 0 z3 0 e1 OCT 93 2 2 1 0.3 2-0.6 -0.1 2 0.5 0.0 2 0.5 -3 2 4 0 2 2 NOV 93 0.4 2 0.8 0.0 2 0.4 0.1 2 0.4 0.3 2 0.4- 0 2 2 -0.2 2 0.9 DEC 93 1 2 1 0.2 2 0.6 -0.7 2 0.6 0.1 2 0.6 3 2 3 0 2 1 MEAN- 0.7 2 1.4 0.3 2 0.3 0.0 2 0.6 0.2 .2 0.3 0 2 3 -0.2 2 1.0 C-3

. - _ _ - _ - - _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ = -. ..

TABLE C-II.1 CONCENTRATIONS OF GROSS BETA INSOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF PCI/ LITER t 2 SIGMA COLLECTION 13H2 15F4 15F7 16C2 2BF3 PERIOD JAN 93 0.6

  • 0.5 -0.3 2 0.4 0.0
  • 0.5 0.2 2 0.5 0.1 2 0.5 PEB 93 0.3 2 0.7 0.0 2 0.6 -0.1 2 0.6 0.7 2 0.7 0.1 2 0.6 MAR 93 1.3 0.7 0.9 2 0.6 0.8 2 0.6 0.6 2 0.6 0.3 2 0.6 APR 93 1.7 2 0.6 0.5 s 0.5 0.1 a 0.4 0.3 2 0.5 0.2 2 0.5 MAY 93 1.1 2 0.6 0.0 2 0.4 0.0 2 0.4 0.1 2 0.4 0.2 2 0.4 JUN 93 0.2 0.4 0.2 2 0.4 0.4 2 0.5 0.8 2 0.5 0.3 2 0.5 JUL 93 2.1 a 0.0 0.0 2 0.6 0.3 0.6 2.3 2 0.8 0.0 s 0.6 AUG 93 0.5 2 0.5 0.1 0.5 0.0 s 0.5 0.5 2 0.5 0.4 2 0.5 SEP 93 0.6 2 0.5 0.1 2 0.4 0.1 2 0.4 0.5 2 0.5 0.2 s 0.4 OCT 93 0.1 2 0.5 -0.2 2 0.5 0.0 t 0.5 0.1 2 0.5 0.1 a 0.5 NOV 93 0.9 2 0.6 0.0
  • 0.5 -0.2 0.5 0.1 2 0.5 0.0 2 0.5 DEC 93 0.2 0.5 0.1 2 0.5 -0.1 0~. 5 0.7 t 0.5 0.1 0.5 MEAN 0.8 2 1.3 0.1
  • 0.6 0.1 2 0.6 0.6 1.2 0.2 2 0.2 TABLE C-II.2 CONCENTRATIONS OF GROSS BETA SOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATINC STATION, 1993 RESULTS IN UNITS OF PCI/ LITER
  • 2 SIGMA COLLECTION 13H2 15F4 15F7 16C2 28F3 PERIOD JAN 93 4 2 1 4 2 1 3 2 1 3 2 1 3 2 l' FEB 93 4 2 1 5 1 1 4 e1 3 2 1 4 1' MAR 93 5 2 1 4 2 1 5 2 1 4 2 1 4 1 APR 93 2.8 2 0.9 4.0 1 0.9 8 2 1 3 2 1 4.0
  • 1.0 M P.'s 93 4 1 5
  • 1 4 2 1 4 e1 3
  • 1 JUN 93 6 1 7 1 7 a1 5 2 1 7 2 1 JUL 93 7 2 2 8 2 2 5
  • 1 6 2 2 5 e1 AUG 93 7 2 1 7 2 1 7 s1 7 a1 7 2 1 SEP 93 7 1 7 2 1 7 2 1 6 2 1 7 *1 OCT 93 8
  • 1 7 2 1 8 2 1 0 2 1 6 2 1 NOV 93 5
  • 1 6 t 1 7 z1 4 2 1 6 e1 DEC 93 4 s1 5 2 1 4 21 7
  • 1 4 1 MEAN 5.3 2 3.3 5.0
  • 2.8 6 *4 5
  • 4 5.0 s S.1 TABLE C-II.3 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF PCI/ LITER 2 2 SIGMA COLLECTION 13H2 15F4 15F7 16C2 28F3 PERIOD JAN-MAR 93 -10 s 70 -50 70 0 2 70 -30 2 80 10 2 80 APR-JUN 93 -20 2 90 20
  • 90 100
  • 90 -30 2 80 30 2 90 JUL-SEP 93 30 s 60 20- t 60 70 $ 60 20 a 70 10
  • 60 OCT-DEC 93 -100 e 100 0
  • 100 -100 100 0
  • 100 -190 z'90 MEAN -20
  • 90 -10 2 60 20 e 160 -20 s 50 -40 2 210 C-4

TABLE C-II.4 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF PCI/ LITER e 2 SIGMA COLLECTION K-40 MN-54 CO-58 FE-59 CO-60 EN-65 STC PERIOD 1382 JAN 93 -6 s 6 0.2 a 0.4 0.0

  • 0.5 0.0 s 0.9 0.3 a 0.4 -1.0 s 0.9 FEB 93 0 s5 0.1 s 0.3 -0.3 s 0.4 -0.6 s 0.8 0.1 s 0.3 -0.4
  • 0.7 MAR 93 -3 s7 0.4 s 0.5 0.1 a 0.6 1 a1 0.6 0.5 0.7 s 3.0 APR 93 4 a6 -0.3 s 0.4 -0.1 s 0.5 1 a1 0.1 a 0.5 0.8 e 0.9 MAY 93 -4 e5 0.1 s 0.4 -0.1 a 0.4 1 a 1 -0.2 a 0.4 0 e 1 JUN 93 -3 s 5 0.3 a 0.3 -0.1 s 0.3 0.4 s 0.7 0.2 s 0.3 0.4 s 0.7 JUL 93 17 s7 0.5 s 0.5 0.0 s 0.6 -1 s1 -0.1 a 0.5 0 e1 AUG 93 -4 a 6 -0.1 a 0.4 0.0 a 0.5 -1 s1 0.0 a 0.4 0.8 a 0.9 SEP 93 2 s5 -0.1 e 0.4 -0.1
  • 0.4 -0.1
  • 0.9 0.3
  • 0.5 -0.5 s 0.9 OCT 93 -3 a6 0.1 a 0.4 -0.3 1 0.5 -1 a1 0.2 s 0.4 0.9 s 0.9 NOV 93 2 s6 0.1 s 0.5 0.1 a 0.5 0 a1 0.0 a 0.5 0 s1 DEC 93 -8 s7 0.4 a 0.5 -0.1 a 0.5 1  : 1 0.2 a 0.5 0 s1 NEAN -1 a 13 0.2 0.4 -0.1 s 0.3 0.0 e 1.2 0.1 s 0.4 0.2 a 1.2 15F4 JAN 93 -9 s 10 0.3 a 0.5 -0.3 s 0.5 1 s 1 0.1 a 0.5 -1 a1 FEB 93 -22 s7 0.4 s 0.4 -0.2 s 0.4 -0.3 a 1.0 0.0 s 0.4 0.2 a 0.8 MAR 93 -3 a6 0.1 a 0.4 -0.2 s 0.4 -0.7 s 0.9 0.2 a 0.4 -0.3 a 0.8 APR 93 -40 s 10 0.0 a 0.5 -0.1 2 0.6 0 t 1 0.0 2 0.5 0 e1 MAY 93 -17 s 8 0.0 e 0.5 -0.3 a 0.5 0
  • 1 0.4 s 0.4 0 a1 JUN 93 -8 s6 0.4 a 0.4 -0.5 2 0.4 0.0 a 0.9 0.2 a 0.4 0.6 s 0.8 i JUL 93 11 a6 0,1 s 0.6 0.6 e 0.6 0 a2 -0.2 a 0.6 1 a1 l AUG 93 1 a 5 -0.1 s 0.3 0.3 a 0.4 0.0 s 0.8 0.2 a 0.4 0.6 s 0.8 SEP 93 13 s 4 0.2 a 0.3 -0.1 a 0.3 -0.3 4 0.7 0.3 a 0.3 -0.1 a 0.7 OCT 93 -5 s 5 -0.3 s C.4 -0.2 s 0.4 -1.0 s 0.9 0.2 s 0.4 0.1
  • 0.8 NOV 93 19 e7 -0.2 a 0.6 -0.2 s 0.6 1 e1 0.2 a 0.6 2 e1 i DEC 93 -3 a8 -0.1 0.5 0.0 s 0.5 1 a1 0.2 a 0.5 1 s1 i MEAN -5 s 33 0.1 a 0.5 -0.2 a 0.5 0.0 a 1.2 0.1 a 0.3 0.3 a 1.6 15F7 JAN 93 -10 a 10 0.1 s 0.5 0.0 a 0.5 0 a1 0.1 e 0.4 1 e1 FEB 93 -9 s6 0.3 e 0.4 0.4 s 0.5 -1 s 1 0.1 a 0.4 -0.3 s 0.9 KAR 93 0 s 10 -0.1 s 0.5 0.1 e 0.6 0 a1 0.8 e 0.5 0 a1 APR 93 -40 s 30 0.7 s 0.6 0.1 e 0.6 1 a1 0.3 s 0.5 2 e1 MAY 93 -1 a9 0.2 a 0.6 0.0 s 0.7 0 a2 -0.4 a 0.6 0 s1 JUN 93 -11 s 8 0.1 0.5 0.0 e n.5 -1 s1 0.2 a 0.5 0 e1 JUL 93 -30 s 10 0.5 s 0.6 -0.5 a 0.6 0 s2 0.0 s 0.6 0 a1 AUG 93 -4 e 5 0.0 s 0.3 0.1 a 0.3 -0.3 e 0.7 0.3 s 0.3 -0.1 s 0.7 sEP S3 -10 e 10 0.2 s 0.5 0.0 s 0.5 0 e1 0.3 a 0.5 1 e1 OCT 93 2 a5 0.2 e 0.3 -0.2
  • 0.3 -0.2 a 0.8 -0.2 a 0.3 0.2 a 0.7 Nov 93 -20 m 10 0.0 s 0.5 0.1 s 0.6 0 1 0.3 a 0.5 0 s1 DEC 93 0 s6 -0.1 a 0.4 0.0 s 0.4 0.3 a 0.9 0.2 a 0.4 0.6 s 0.8 MIAN -11 a 24 0.2 e 0.5 0.0 s 0.4 -0.1 s 0.7 0.2 s 0.6 0.4 a 1.1 16C2 JAN 93 9 5 0.1 a 0.3 -0.1 a 0.3 0.3 e 0.8 0.0 s 0.4 -0.2 a 0.8 FEB 93 -20 e 10 0.1 s 0.5 -0.4 s 0.5 0 s1 0.3 s 0.5 1 a1 KAR 93 -16 s8 0.0 a 0.5 -0.1 a 0.5 0 a1 -0.1 a 0.5 0.4 a 0.9 APR 93 4 s4 0.1 a 0.4 0.1 a 0.4 -0.3 a 0.8 0.2 a 0.4 -0.1 a 0.8 MAY 93 8 s5 0.6 s 0.4 0.0 s 0.4 0.2 a 0.9 0.0 a 0.4 0.1 a 0.8 JUN 93 0 a 10 0.0 a 0.5 -0.3 a 0.5 0 a1 0.1 a 0.5 -1 e1 JUL 93 2 s5 0.1 a 0.4 -0.3 a 0.5 0 m1 0.1 a 0.4 -0.9 e 0.9 AUG 93 6 s 5 0.1 a 0.4 -0.1 e 0.4 0 a1 -0.1 s 0.4 -0.2 a 0.8 sEP 93 -6 s8 0.1 s 0.5 0.1 a 0.6 0 s1 0.1 a 0.6 0 e1 OCT 93 -31 *7 -0.2 e 0.4 -0.2
  • 0.5 0 a1 0.0 a 0.4 -0.1 s 0.8 NOV 93 12 s6 0.6 e 0.4 -0.2 s 0.4 0.0 s 0.9 -0.1 s 0.4 0.7 a 0.9 DEC 93 10 e6 0.0 s 0.5 -0.2 a 0.5 0 a1 0.3 s 0.5 0 s1 MEAN -2 2 28 0.1 a 0.5 -0.1 a 0.3 0.1
  • 0.4 0.1 s 0.3 0.0 a 1.2 28F3 JAN 93 -7 s5 0.1 s 0.3 0.0 e 0.3 -0.6 a 0.7 0.1 a 0.3 -0.2 s 0.7 FEB 93 -16 s6 0.1 s 0.4 0.2 a 0.4 -0.3 s 1.0 0.3 a 0.4 0.3 a 0.9 MAR 93 12 s6 0.1 a 0.4 0.0 a 0.4 -1 a1 0.3 a 0.4 0.5 s 0.9 APR 93 -20 a 10 -0.1 a 0.5 0.7 a 0.6 -1 s1 0.2 s 0.6 0 e1 MAY 93 6 a6 -0.1 a 0.5 0.1
  • 0.5 0 a1 -0.1 0.5 1 a1 I l

JUN 93 -43 a9 0.0 s 0.4 -0.4 e 0.5 -1 e1 0.0 a 0.5 2 s1 JUL 93 -1 a6 -0.1 a 0.4 -0.2 a 0.4 0.4 e 0.9 0.1 s 0.4 0.7 a 0.8 AUG 93 6 s5 0.6 e 0.4 -0.1 s 0.4 1 s1 0.3 0.4 -0.7 e 0.9 SEP 93 19 a5 0.1 a 0.3 -0.2 s 0.4 0.3 s 0.8 0.3 s 0.4 0.2 a 0.8 OCT 93 -2 a6 0.4 a 0.4 -0.1 0.4 0 a1 -0.2 e 0.4 -0.1 a 0.9 NOV 93 -5 e6 -0.1

  • 0.4 -0.1 s 0.4 -0.2 a 0.8 0.2 a 0.4 0.4
  • 0.8 DEC 93 1 s7 0.2 a 0.5 -0.3 s 0.5 0 a1 0.1 a 0.5 0 a1 i

M1AN -4 a 32 0.1 a 0.4 -0.2 s 0.5 -0.1 s 1.0 0.1

  • 0.3 0.3 s 1.3 l

l C: - 5 l

TABLE C-II.4 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF FCI/ LITER a 2 SIGMA COLLECTION ZR-95 NB-95 CS 134 CS.137 BA-140 LA-140 STC PERIOD 13H2 JAN 93 0.2 a 1.0 0.2 s 0.4 0.4 s 0.4 0.1 a 0.5 -1 a2 0.3 s 1.0 FEB 93 0.4

  • 0.8 0.6 a 0.4 0.0 e 0.3 0.4 e 0.4 1 e2 0.4 e 1.0 MAR 93 1 *1 0.2 s 0.5 0.2 a 0.5 0.2 a 0.5 0 e3 0 a1 APR 93 -0.3 a 1.0 0.2 2 0.5 -0.1 s 0.5 0.3 a 0.4 0 s2 0 a1 MAY 93 0.8 a 0.9 0.1 s 0.4 0.1 e 0.4 0.2 a 0.4 0 s2 0 a1 JUN 93 0.4 s 0.6 0.2 a 0.3 0.1 s 0.3 0.2 a 0.3 1 a1 0.2 a 0.6 JUL 93 0 t 1 0.3 e 0.6 0.3 a 0.5 0.8 a J.5 2 s4 -1 e2 AUG 93 0 s1 0.4 a 0.5 0.1 a 0.4 0.1 a 0.4 2 *3 0 s1 SEP 93 -2.4
  • 0.9 0.1 s 0.4 0.0 s 0.4 0.5
  • 0.4 0 s2 0.2 s 0.9 DCT 93 1 e1 0.2 s 0.5 0.0
  • 0.4 0.1 a 0.4 2 a4 0 a1 NOV 93 0 a1 0.7 a 0.5 0.2 s 0.5 0.2 e 0.5 1 s3 0 a1 '

DEC 93 1 a1 0.3 e 0.5 0.1 m 0.5 0.5

  • 0.5 -1 .s 3 0 a1 MEAN 0.0 e 1.8 0.3 s 0.4 0.1 s 0.3 0.3 e 0.4 0 s2 0.0 e 0.6 15F4 JAN 93 1 s1 0.4 2 0.5 -0.1 a 0.5 0.5
  • 0.5 1 s2 0.8 e 0.9.

FEB 93 0.4 e 0.9 0.3 a 0.4 0.2 a 0.4 0.2 s 0.4 1 's3 1 a1 MAR 93 0.5 s 0.9 0.1 a 0.4 -0.1

  • 0.4 0.2 a 0.4 0 s2 -O s1 APR 93 0 a1 0.9 s 0.6 -0.4 a 0.6 0.2 e 0.6 1 e3 -1 s1 MAY 93 1 a1 0.0 a 0.5 0.3 a 0.5 0.2 2 0.5 1 s3 1 a1 JUN 93 0.2 a 0.9 0.2 a 0.4 0.1 s 0.4 0.0 t 0.4 0 2 0.8 a 0.8 JUL 93 2 1 0.5 s 0.7 -0.5 3 0.7 0.4 a 0.6 0 s5 1 e2 AUG 93 0,5 0.8 0.5 e 0.4 0.2 a 0.4 0.0 a 0.4 0 a2 0 a1-SEP 93 0.1 2 0.7 0.4 a 0.3 0.3 a 0.3 0.1 a 0.4 0 a2 0.1 a 0.7 OCT 93 0.6 s 0.8 0.3 e 0.4 0.2 e 0.3 0.2 a 0.3 0 a3 0 e2 Nov 93 2 a1 -1.0 s 0.6 0.2 s 0.7 0.0 s 0.6 4 e3- -1 s1 DEC 93 1 e1 0.6 0.6 0.1
  • 0.5 0.3 a 0.5 1 e3 -1 a1 MEAN 0.7 a 1.4 0.3 e 0.9 0.1 s 0.5 0.2 a 0.3 1 e2 0.2 a 1.4 15F7 JAN 93 1 e1 -0.7 e 0.5 -0.5 s 0.5 0.3 a 0.5 0 e2 -0.1 e 0.9 FEB 93 0.1 a 1.0 0.2 a 0.5 0.2 a 0.5 0.4 a 0.4 0 a3 0- e1 MAR 93 2 e1 0.8 a 0.6 0.0 s 0.6 0.4 a 0.6 -2 a3 -1 a1 APR 93 -1 a1 0.7 a 0.6 0.6 s 0.6 0.3 a 0.6 3 e4 2 a2 MAY 93 0 s1 0.0 a 0.7 0.1 a 0.6 0.4 e 0.7 -1 *4 1 a2 JUN 93 0 s1 0.5 s 0.5 0.0 s 0.5 -0.2 a 0.5 2 a3 -1 a1 JOL 93 1 a1 0.2 s 0.7 0.7 e 0.6 0.1
  • 0.6 -1 e4 -5 a2 AUG 93 -0.1 a 0.7 0.0 s 0.4 0.3 e 0.3 0.2 a 0.3 0 *2 0.8
  • 0.9 SEP 93 3 a1 0.5 a 0.5 -0.1 a 0.5 0.7 a 0.5 1 s2 0.5 e 0.9 oCT 93 -0.3 s 0.8 0.3 3 0.3 0.2 a 0.3 0.2 a 0.3 -2 *3 0 ei NOV 93 0 e1 0.6 a 0.6 -0.2 a 0.6 0.5 a 0.6 1 a3' 0 *1 DEC 93 0.1 s 0.8 -0.2 s 0.4 -0.2 a 0.4 0.4 a 0.4 -1 e2 0.5 a 0.8 MEAN 0.2 e 2.3 0.2 -a 0.8 0.0 s 0.7 0.3 a 0.5 0 a3 0.7 a 3.2 16C2 JAN 93 0.2 s 0.7 0.3 a 0.4 0.0 s 0.4 0.2 a 0.4 0 a2 -0.1 e 0.8 FEB 93 1 e1 0.9 a 0.6 -0.3 a 0.5 0.4 a 0.5 0 a3 0 a1 MAR 93 1 a1 0.1 s 0.5 -0.3 a 0.5 0.1 a 0.5 0 a3 0 e1 APR 93 0.3 e 0.9 0.2 a 0.4 0.1 a 0.4 0.2 a 0.4 2 a3 0 e1 MAY 93 0.0 s 0.8 0.1 a 0.4 0.4 a 0.4 -0.1 s 0.4 -1 e2 0.4 a 0.9' JUN 93 1 e1 0.6
  • 0.5 1.3 e 0.5 0.7 e 0.5 -1 a2 0.1 a 0.9 JUL 93 0.1 a 0.9 0.5 e 0.5 -0.1 a 0.5 - 0.1 a 0.4 1 e3 -1 a2 AUG 93 1.0 e 0.9 0.7 s 0.4 0.1 a 0.4 0.3 a 0.4- 1 a3 0 a1 SEP 93 0 1 0.4 a 0.6 0.5 s 0.6 0.1 's 0.5 1 a4 1 e2 OCT 93 1 e1 -0.1 a 0.5 -0.4 a 0.4 0.2 a 0.4 0 a4 0 *1 NOV 93 0.1 a 0.9 0.0 e 0.4 0.0 a 0.5 0. 0 . e 0.4 .1 a2 1 a1 DEC 93 1 a1 0.3 a 0.5 0.1 a 0.5 0.3-'s 0.5 0- e3 0 s'1 MEAN 0.5 a 0.9 0.3 2 0.6 0.1
  • 0.9 0.1 a 0.5 .0 s2 'O.0 e 0.8 28F3 JAN 93 -0.2 a 0.7 0.2 a 0.3 0.1 a 0. 3 . 0.1 s 0.3 1 s2- 0.1 a 0.7 FEB 93 0.6 e 1.0 0.5 s 0.5 0.1
  • 0.4 0.0 a 0.4 -1 s3 0 a1 MAR 93 1.3 e 0.9 0.5 e 0.5 -0.6. e 0.4 -0.1 a 0.4 0 a2 0 e1 APR 93 1 s1 0.2 a 0.6 0.2 a 0.6 0.5 a 0.6 5 e3 -1 ' a1 MAY 93 1 a1 0.0 a 0.5 0.2 a 0.5 0.2 a 0.5 -2 s3 0 a1 JUN 93 2 a1 0.9 s 0.5 0.0 s 0.5 0.3
  • 0.5 1 e2 -0.5 a 0.8 JUL 93 0.0 a 0.9 0.0 a 0.4 0.3 a 0.4 . 0. 3 a 0.4 -1 e3 2 s1 AUG 93 0 e1 . -0.4 s 0.5 0.8 s 0.5 ~ 0. 4
  • 0.4 2 e3 1 ai sEP 93 0.1 e 0.8 0.2 a 0.4' O.0 a 0.4 0.1 a 0.4 0 s2 0.1 a 0.8 OCT 93 1 e1 0.4 s 0.5 0.3 s 0.4 0.5 e 0.4 2 a4 2 s2 NOV 93 -0.5 e 0.8 0.1 a 0.4 0.0 s 0.4 0.3 s 0.4 1 e2 0.0 a 0.9 DEC 93 1 e1 0.4 a 0.5 0.6 e 0.5 -0.6 e 0.5 -2 a3 -1 s 1.

MEAN 0.5 s 1.2 0.3 a 0.7 0.1 s 0.7 0.2 s 0.6 0 a4 0.1 a 2.0

(: ._ _ _ _ _ _ _ . - _ _ . _________ - _ _

TABLE C-III.1 CONCENTRATIONS OF OAMMA EMITTERS I3 FISH SAMPLE 3 COLLECTED IN THE VICINITT OF LIMERICK C'M TING STATION, 1993 RESULTS IN UNITS OF PCI/KG WET

  • 20 -10 a 20 10 a 40 -10 a 20 30 e 40 -10 a 20 10
  • 20 11/08-11/08/93 2900 e 300 5 m8 -2 *8 0 2 20 6 e8 -10
  • 20 12 e9 5 a8 MEAN 3700 e 2100 6 *1 -6 e 10 10 2 10 0
  • 17 10 e 60 2
  • 30 7 e&

BOTTON FREDER 05/20-05/20/93 3400 's 400 0 a 10 -10 m 10 0 2 30 C a 10 -10 e 30 -20 m 10 10 2 20 11/02-11/02/93 2800

  • 300 4 *6 -2 a6 -10 e 10 5 a6 10 e 10 -5 m7 11
  • 7 MEAN 3100 a 800 2 *7 -4 2 6 0 e 10 3 6 0 2 20 13 m 21 10 2 3 2021 PREADATOR 05/21-05/21/93 2900
  • 500 -10 e 20 -10 e 20 -30 a 40 20 e 20 0 e 40 0
  • 20 0 2 20 11/09-11/10/93 2800 s 300 0 *7 -3 m8 20 e 20 7 e8 20 m 20 2 *8 4
  • 9 MEAN 2900
  • 100 -4
  • 13 -5 2 6 -10 z 70 14 e le 10 2 20 2 2 1 2 2 6 BOTTOM FEEDER 05/21-05/21/93 4100 e 500 0
  • 20 10
  • 20 -20 a 40 -10 a 20 0 m 40 0 a 20 10
  • 20 11/09-11/09/93 2300 a 200 0 a4 -3 e4 0 2 10 1 a4 2 e9 1 a4 6 s4 MEAN 3200 e 2500 2 *6 1 2 11 -10 2 20 -5 z 16 3 e1 0 *3 6 e1 29C1 PREADATOR 05/14-05/14/93 2400 e 500 10 2 20 20 s 20 20
  • 60 0 a 20 -10 e 40 -10 a 20 20 e 20 11/10-11/10/93 3200 e 300 -12
  • 8 0 *9 20 e 20 -1 a9 0 2 20 0 2 8 -1 2 8

.MEAN 2900 1100 -1 2 31 10

  • 28 20
  • O ~1 2 1 0
  • O -2
  • 7 10 t 30 BOTTOM FEEDER 05/14-05/14/93 4700 a 500 0 2 20 10
  • 20 0 z 40 10 20 -10
  • 40 -10 e 20 10 20 11/10-11/10/93 3200 300 0
  • 8 -5 a9 -20 20 4 e8 10 a 20 2 e8 2 m8 MEAN 4000
  • 2100 -1 *3 1 a 17 -10 30 5 e3 0 e 10 -3 e 13 6 z 11

+

A mW C-7

TABLE C-IV.1 CONCENTRATIONS OF GAMMA EMITTERS IN SILT SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF PCI/ GRAM DRY t 2 SIGMA COLLECTION BE-7 K-40 CO-60 CS-134 CS-137 RA-226 TH-228 STC PERIOD 16B2 05/07-05/07/93 2.7 2 0.4 16 2 2 0.00 2 0.02 0.03 z 0.03 0.26 2 0.04 2.5 2 0.6 1.2 2 0.1 11/05-11/05/93 2.9 2 0.4 15 2 2 0.05 2 0.03 0.07 2 0.03 0.35 2 0.04 3.0 2 0.6 1.4 2 0.1 MEAN 2.8 2 0.2 16 2 1 0.03 2 0.07 0.05 2 0.05 0.31 2 0.12 2.8 2 0.7 1.3 2 0.2 16C4 05/07 05/07/93 1.8 2 0.3 13 2 1 0.01 2 0.03 0.03 2 0.02 0.15 2 0.04 2.4 2 0.6 1.2 2 0.1 11/05-11/05/93 7.8 2 0.8 IB z2 0.07 2 0.04 0.06 2 0.03 0.28- 2 0.04 2.9 2 0.7 1.4 2 0.1 MEAN 4.8 2 8.6 16 2 7 0.04

  • 0.08 0.04 2 0.05 0.22 2 0.18 2.7 2 0.7 1.3 1 0.4 33A2 05/07-05/07/93 0.2 2 0.2 11 2 1 0.00 2 0.02 0.08 s 0.03 0.08 2 0.04 1.9 2 0.6 1.1 2 0.1 11/05-11/05/93 2.0 2 0.5 9.0 2 0.9 -0.02 2 0.03 0.06 2 0.03 0.04 2 0.04 2.2 2 0.8 1.0 2 0.1 MR1LN 1.1 2 2.5 10.2 2 3.3 -0.01 2 0.03 0.07 2 0.03 0.06 2 0.06 2.1 2 0.4 1.0 t 0.1 C-8

.~. _ _ . ..

t:

I r

i TABLE C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLED t COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF E-3 PCI/CU. METER 2 2 SIGMA GROUP I - ON-SITE LOCATIONS WEEK 10S3 1181 14S1 34S2 01 15 2 3 16 *3 14 z3 16 *3 02 18 3 21 2 3 20 $ 3 19 2 3 03 20 2 3 19 s3 16 2 3 20 3 04 16

  • 3 15 3 12 3 17 z3 05 16 a3 17 2 3 14 2 3 19 2 3 06 16 2 3 21 2 3 16
  • 3 17 2 3 07 14 3 14 a3 14 3 16 2 3 08 14 2 3 16 2 3 16
  • 3 18'
  • 4 09 20 2 4 18 2 4 20
  • 4 19 2 4 10 23
  • 3 19
  • 3 18 3 19
  • 3 11 16 2 3 17 3 14 1 3 17 2 3 12 16 4 16 4 16 2 4 19 2 4 13 7 2 3 8 3 6 2 3 7 s3 14 5
  • 3 5 2 3 4 2 3 5 2 3 15 9 3 10 2 3 8 3 10 2 3 .

16 9 2 3 10 2 3 11 e3 10 e3 17 14 3 14 2 3 12 2 3 12 2 3 18 19 i 3 18 3 17

  • 3 17
  • 3 19 12 3 13 3 11 2 3 12 2 3 20 16 2 3 17 2 3 15 2 3 16 3
  • 21 13 3 12 2 3 12 3 12 2 3 22 17 2 3 16 2 3 16 2 3 18
  • 3 23 13 2 3 10 2 11 2 3 12 2 3 24 16 2 3 14 2 3 11 2 3 13 3 25 15 2 3 14 s3 14 3 16 2 3 26 16 2 3 14
  • 3 13
  • 3 12 s3 27 15 2 3 15 2 3 13 a3 15 *3 28 22 2 4 21 2 4 20 2 4 25 s4 29 14 3 13
  • 3 10 t 3 14 a3 30 12 e3 12 e3 10 t 3 10 *3 31 14 s3 14
  • 3 12 3 13 2 3 32 16 *3 18 t 3 19
  • 3 18 2 3 33 16 2 3 18 2 3 18 e3 17 2 3 34 17 2 3 18 2 3 15 2 2 16
  • 3 35 25 4 28 a4 '27 2 4 25 a4 36 19 2 3 15 s3 18- 2 3 21 *3 37 16
  • 3 14 3 18 2 3 17 2 3 l 38 14 2 3 12 2 3 11 2 3 14 2 3 I

39 16 2 3 17

  • 3 16 2 3 13 2 3 40 10 2 3 20 2 4 10 2 3 10
  • 3  !

41 13 3 13 2 3 17

  • 3 18 2 3 42 16 s4 16
  • 4 15 s4 20 2 4 43 14 2 3 16
  • 3 13 s3 13 a3 44 18 3 17 2 3 19 2 3 21 2 3 45 16 2 3 14 2 3 16
  • 3 15 -* 3 46 29 2 4 33 2 4 30 t 4 30 2 4 47 19 2 3 17
  • 3 17 2 3 21 2 3 48 24 2 4 22 2 3 20 3 19 2 3 49 22 z3 20
  • 3 22 2 3 20 2 3 50 24 2 4 20 2 4 14 2 3 20 t 4 .;

51 14 2 3 17

  • 3 12
  • 3 18 2 3  !

52 19 2 3 18 2 3 20 2 3 19 i '3 53 23 a4 19

  • 3 14 2 3 18 a3 MEAN 16 2 9 16 2 9 15 9 16 9 C-9 l

r TABLE C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993

~

RESULTS IN UNITS OF E-3 PCI/CU. METER

  • 2 SIGMA OROUP II - INTERMEDIATE DISTANCE LOACATIONS WEEK 2B1 6C1 9C1 13C1 15D1 17B1 .

01 14 a3 17 a3 13 a3 15 a3 11 a3 12 a3 02 21 a3 21 a3 19 a3 19 a3 21 a4 16 a3 03 17 a3 18 a3 17 a3 18 a3 19 a3 18 a3 04 18 a3 16 a3 15 a3 13 a3 15 a3 14 a3 05 20 a3 17 a3 16 a3 16 a3 21 a3 16 a3 06 16 a3 18 a3 17 a3 15 a3 17 a3 17 a3 07 14 a3 14 a3 11 a3 11 e3 12 a3 14 a3

  • 08 18 a3 13 a3 14 a3 15 a3 15 a3 17 a3 09 22 a4 20 a4 18 m4 22 a4 21 a4 20 a4 10 21 *3 17 a3 21 a3 20 a3 21 a3 21 a3 11 14 a3 13 a3 15 a3 14 a3 17 a3 14 a3 12 18 a4 13 a3 18 a4 18 a4 19 a4 14 a3 13 8 a3 5 a2 14 a3 7 a3 8 a3 6 a2 14 6 a3 7 a3 13 a3 4 a3 4 a3 5 a3 15 10 a3 10 a3 9 a3 9 a3 7 a2 10 a3 16 11 a3 9 a3 9 a3 12 a3 9 a3 8 a3 17 13 a3 10 a3 12 a3 13 a3 18 a4 14 a3 18 19 a3 16 a3 19 a3 14 a3 17 a3 16 a3 19 13 a3 13 a3 13 a3 11 a3 14 a3 13- a3 20 17 a3 16 2 3 14 a3 16 a3 15 a3 13 a3 21 11 a3 13 a3 10 a3 12 a3 14 a3 12 a3 '

22 15 a3 18 a3 19 a3 18 a3 18 a3 16 a3 23 11 a3 14 a3 13 a3 12 a3 14 a3 14 a3 24 12 a3 12 a3 14 a3 14 a3 15 a3 14 a3 25 14 a3 15 a3 16 a3 17 a3 14 a3 14 a3 26 16 a3 13 a3 14 a3 14 a3 13 a3 10 a3

  • 27 14 a3 15 a3 15 a3 16 a3 15 a3 17 a3 28 26 a4 24 a4 22 a4 23 a4 24 a4 19 a4 29 13 a3 12 a3 14 a3 11 a3 13 a3 15 a3 30 11 a3 14 a3 12 a3 13 a3 12 a3 11 a3 31 18 a3 12 a3 12 a3 14 a3 16 a3 12 a3 32 17 a3 18 s3 15 a3 18 a3 16 a3 19 a3 33 22 a3 18 a3 19 a3 19 a3 19 a3 17 a3 34 17 a3 15 a3 17 a3 17 a3 20 a3 16 a3 35 25 a4 21 a4 26 a4 29 a4 27 a4 23 a4 36 20 a3 19 e3 19 a3 20 a3 19 a3 18 a3 37 19 a3 19 a3 15 a3 16 a3 16 a3 15 a3 38 12 a3 12 *3 11 a3 12 a3 14 a3 10 a3 39 16 a3 16 a3 17 a3 16 a3 16 _a 3 14 a3 40 15 a4 13 a4 9 a3 11 a3 12 a3 8 a3 41 16 a3 11 a3 15 a3 13 a3 16 a3 17 a3 42 26 a4 17 *4 16 a4 16 a4 19 a4 18 a4 }

43 15 a3 15 a3 15 a3 17 a3 12 a3 15 ,a3 -

44 18 a3 16 a3 15 a3 19 a3 19 a3 15 a3 45 17 a3 16 a3 16 a3 18 a3 16 a3 11- a3 46 28 m4 30 a4 34 a4 33 a4 33 a4 30 a4 47 14 a3 17 e3 17 a3 17 a3 20 a3 17 a3 48 22 a4 18 a3 22 a4 21 a3 24 -a4 23 a4 49 23 a4 19 a3 18 a3 20 a3 22 a4 24 a4 l 50 23 a4 18 a4 23 e4 19 a4 21 a4 14 a3

51 18 a3 15 a3 14 a3. 14 a3 15 a3 14 a3 52 20 a3 17 a3 19 a3 20 a3 19 a3 17 a3 53 18 a3 16 a3 19 a3 19 a3 19 e3 '19 a3 MEAN 17 a9 15 a8 16 a9 16 a 10 17 a 10 15 a9 l

l i

l 5

C: - 10

TABLE C.V.1 CONCENTRATIONS OF OROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED 4N THE VICINITY OF LIMERICK OENERATING STATION, 1993 RESULTS IN UNITS OF E.3 PCI/CU. METER e 2 SIGMA GROUP II . INTERMEDIATE DISTANCE LOACATIONS WEEK '20D1 26B1 2981 31D1 35B1 01 18' s3 18 a3 17 e3 15' e3 16 e3

. 02 17 *3 18 a3 18 s3 21 e3 20 a3 03 16 -a3 20 a3 14 a3 18 a3 16 a3 04 13 a 3- 14 a3 16 a3 14 a3 12 a3-05 16 s3 14 a2 17 a3 16 s3 20 's 3 06 16 a3 13 a3 19 a3 14 *3 16 s3 07 13 *3 14 s3 12 a3 16 a3 17 a3 08 16 a3 16 a3 15 a3 11 a3 15 s3 09 19 a4 21 a4 18 s4 21 e4 21 s4 10 20 a3 22 a3 20 a3 17 a3 18 a3 11 13 a 3 15 a3. 12 s3 12 e3 17 's3 12 19 a4 16 s3 18 a4 17 a4 17 *4 13 7 *3 8 a2 10 a3 8 *3 (1) 14 5 a3 3 s3 6 s3 7. 2 3 1 a3 15 11 a3 10 a3 11 a3 10 a3 9 a3 16 9 a3 8 e3 10 a3 13 a3 11 e3 17 24 s2 16 a3 14 s3 14 a3 15 s3 18 21 s3 18 a3 17 a3 18 a3 18 s3 19 13 a3 13 s3 13 a3 12 a3 15 a3 20 14- 3 16 s3 18 -* 3 22 a3 13 e3 21 14 s3 16 a3 14 a3 14 a6 11 2 3 22 16 a3 17 a3 16 s3 15 ~ *3 16 s3 23 13 a3 15 s3 14 e3 13 *3 14 . s3 24 17 a4 16 a3 14 s3 (1). 16 a3 25 18 a3 13 a3 17 *4 15 a3 13 a3 26 12 s3 11 a3 13 s6 16 a3 16 e3 27 17 s3 18 a3 14 a3 16 s3 14 a3 28 21 a4 26 s4 21 a4 (1) 22 a4 29 14 a3 13 a3 19 a8 10 a3 12 s3 30 12 a3 12 a3 9 *3 10 e3 14 a3 31 13 a3 13 a3 14 *3 14 a3 13 a3 32 18 a3 17 *3 19  ? 'a 19 a3 17 a3 33 20 a3 17 a3 19 a6 21 a3 17 *3 34 18 a3 18 a3 A7 s3 17 a3 17 a3 35 28 a4 27 a4 26 e4 24 a4 27 e4 36 21 s3 19 a3 14 a3 19 a3 19 e3 37 18 a3 17 a3 17 a3 (1) 19 a3 38 13 a3 14 a3 13 e3 13 s3 12 s3 39 18 a3 15 a3 17 a3 15 s3 17 s3 40 14 s4 12 *3 16 a4 10 a3 13 e4 41 17 a3 14 a3 13 a3 12 s3 13 s3 42 18 e4 21 a4 7 e6 18 s4 17 *4 43 16 a3 15 a3 15 a3 16 a3 16 s3 44 18 a3 16 a3 20 e3 12 a3 15 a3 45 19 a3 17 a3 17 s3 15 a3 17 a3 46 31 *4 32 a4 28 s4 31 s4 30 a4 47 18 *3 14 a3 17 a3 16 a3 38 a3 48 22 e4 23 a4 17 a3 19 e3 24 s4 49 18 a3 15 a3 19 s3 20 a3 18 a3 50 21 a4 21 a4 19 a3 24 s4 20 s4 51 11 a3 15 a3 15 a3 16 a3 13 a3 52 19 a3 20 a3 20 a3 16 s3 20 a3 53 19 a3 19 a3 17 e3 20 *3 19 e3 MEAN 17 s9 16 a 10 16 s8 16 a9 16 s9 (1) SEE PROGRAM RKCEPTIONS SECTION FOR EXPLANATION 1

-i l

C.11

l fU TABLE C.V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED Ih THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF E-3 PCI/CU. KETER a 2 SIGMA GROUP III . CONTROL LOACATIONS WEER 13H4 22G1 01 17 - a3 13 a3

.02 16 *6 16 a3 03 25 e3 15 a3 04 18 a3 10 a3 05 18 a3 18 a3 06 19 a 3. 16 a3 07 18 *2 13 s3 r 08 23 s3 13 a3 09 22 s3 22 s4 10 28 a3 19 a3 11 16 e2 12 - a3 12 25 s3 16 *4 13 12 e3 6 a3 14 16 s3 3 s3 15 29 e4 9 e3 16 (1) 8 e3 17 17 s3 13 e3 18 16 s3 18 m3 19 12 s2 9 s3 20 22 e3 15 e3 21 14 *3 13 a3 22 17 e3 17 s3 23 13 a4 11 s3 24 18 a3 12 s3 25 19 e3 18 a3 26 17 e3 11 a3 27 23 s3 16 e3 28 29 e6 25 *4 .

29 20 a3 13 a3 30 17 a3 10 a3 31 18 a3 14 s3 32 17 s3 19 a3 33 18 a3 18 *3 34 20 s3 17 s3 35 42 e6 28 e4 36 19 s3 12 a3 37 21 *3 15 e3 38 17 s5 13 *3 39 14 s5 17 s3 40 19 a3 10 a3 41 (1) 14 *3 42 18 a3 20 a4 43 (1) 15 a3 44 20 a3 19 e3 45 (1) 15 a3 46 35 a4 28 a4 47 19 s4 20 e3 48 21 a3 17 a3 49 40 a9 22 a3 50' 23 e4 16 s3 51 16 a3 13 a3 52 22 a4 22 a3 53 18 a3 21 a3 HEAN 20 a 12 15 e 10

'I

[

(1) SEE PROGRAM KKCEPTIONS SECTION FOR KKPLANATION C: - 12 e  % y

TABLE C-V.2 MONFELY AND YEARLY MEAN VALUCS OF OROSS LETA CONCEFFRATIONS (E-3 PCI/CU. METER) IN AIR PARTICULATE SAMPLES--

COLLECTED IN TIE 1 VICINITY OF LINERICE G2KERATING STATIO;2, 1993 GROUP I - ON-SITE I4 CATIONS GROUP II - INTERMEDIATE DISTANCE LOCATIONS GROUP III - CONTROL LOCATIONS COLLECTION . COLLECTION COLLECTION PERIOD MIN. MAE. MEAN a 2 SD PERIOD MIN. MAE. MEAN 2 SD PERIOD MIN. MAE. MEAN 2 2 SD 12/29/92-02/02/93 12 21 17 s5 12/29/92-02/02/93 11 21 17 e5 12/29/92-02/01/93 10 25 17 e8 02/01/93-03/01/93 .14 21 17 s5 02/01/93-03/01/93 11 22 16 a6 02/01/93-03/01/93 13 23 18 a 8 03/01/93-03/29/93 6 23 15 a 10 03/01/93-03/29/93 5 22 15 e9 03/01/93-03/29/93 6 28 17 a 14 03/29/93-05/03/93 4 19 ' 11 a9 03/29/93-05/03/93 1 24 12 a 10 03/29/93-05/03/93 3 29 14 e 15 05/03/93-05/31/93 11 18 14 e5 05/03/93-05/31/93 10 22 15 e5 05/03/93-06/01/93 9 22 15 a 8 05/31/93-06/28/93 10 16 13 e4 05/31/93-06/28/93 10 18 14 e4 05/31/93-06/28/93 11 19 15 e7 06/28/93-08/02/93 10 25 15 a8 06/28/93-08/02/93 9 26 15 2 8 06/28/93-08/02/93 10 29 19 a 12 08/02/93-08/30/93 15 28 19 2 8 08/02/93-08/30/93 15 29 20 e8 08/02/93-08/30/93 17 42 22 a 17 08/30/93-09/27/93 .11 21 16 a5 08/30/93-09/27/93 10 21- 16 a6 08/30/93-09/27/93 12 21 16 2 6 09/27/93-11/01/93 10 21 15 s7 09/27/93-11/01/93 7 26 15 *7 09/27/93-11/01/93 10 20 17 a7 11/01/93-11/29/93 14 33 21 e 12 '- t1/93-11/29/93 11 34 21 e 13 11/01/93-11/29/93 15 35 22 e 14 r 11/29/93-01/03/94 12 24 19 2 6 19/93-01/03/94 11 24 18 *6 11/29/93-01/03/94 13 40 21

  • 15 12/29/92-01/03/94 4 33 16 a9 29/92-01/03/94 1 34 16 a9 12/29/92-01/03/94 3 42 18 e 12 NOTE: -

OROUP I CONSISTST OF LOCATIONS 1083, 1181, 1481.34S2 GROUP II CONSISTST OF LOCATIONS 2B1, 6C1, 9C1, 13C1, 15D1, 1781, 20D1, 26B1, 29B1, 31D1, 35B1 GROUP III CONSISTST OF LOCATIONS 13H4, 22G1 V

C - 13

TABLE C-V.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN T TS OF E-3 PCI/CU. METER 2 2 SIGMA COLLECTION BE-7 K-40 CS-134 CS-137 RA-226 TH-228 STC PERIOD 10S3 12/29-03/29/93 3: 5 5 2 3 0.0 0.2 -0.1 0.2 -3 3 -0.2 2 0.3 03/29-06/28/93 94 9 5 2 3 -0.2 0.3 -0.2 2 0.2 -2 2 3 -0.2 2 0.3 06/28-09/27/93 80 . B 6 2 4 0.1 2 0.3 0.0

  • 0.3 -3 5 0.1 2 0.5 09/27-01/03/94 60 2 6 5 2 3 0.0 2 0.3 0.0 2 0.3 -1 2 5 1.3 0.5 MEAN 67 50 5 1 0.0 2 0.2 -0.1 2 0.2 -2 2 2 0.3 2 1.4 11S1 12/29-03/29/93 53 6 -2 5 0.0 2 0.3 0.5 2 0.3 -3 5 -0.5 2 0.5 03/29-06/28/93 78 2 8 5 2 3 0.0
  • 0.3 0.0
  • 0.3 -4 5 0.4 2 0.5 06/28-09/27/93 64 2 6 9 2 4 -0.1 0.3 0.0
  • 0.3 0
  • 4 -1.1 2 0.4 09/27-01/03/94 56 2 6 12 2 5 -0.2 0.3 0.0 2 0.3 -3 4 -0.5 e 0.4 MEAN 63 2 22 6 2 12 -0.1 2 0.2 0.1 2 0.5 -3 2 3 -0.4 2 1.2 14S1 12/29-03/29/93 49 2 6 28 2 6 0.1
  • 0.4 0.0 2 0.3 -3 2 5 -0.5 2 0.4 03/29-06/28/93 79 2 8 28 2 6 -0.1 0.4 0.2 2 0.3 -5 2 5 -0.8 2 0.4 06/28-09/27/93 84 2 8 9 2 4 -0.1 2 0.3 0.2 2 0.3 -5 6 -0.1 2 0.5 09/27-01/03/94 50 5 11 2 4 0.1 2 0.3 0.2 2 0.3 -4 2 4 -0.6 2 .4 MEAN 65 2 37 19 21 0.0 2 0.2 0.1 2 0.2 -4 t 2 -0.5 2 0.6 13C1 12/29-03/29/93 56 2 6 4 3 0.1 2 0.2 0.1 2 0.2 -3 2 4 0.3 0.4 03/29-06/28/93 72 z7 6 2 3 0.0 2 0.2 0.2 2 0.2 1 4 -0.4 2 0.3 06/28-09/27/93 72 2 7 10 2 4 0.1
  • 0.3 0.1 0.2 -2 2 3 0.0 0.3 09/27-01/03/94 57 2 7 1 4 0.1 2 0.3 0.0 2 0.3 1 t 5 -0.5 0.4 MEAN 64 2 18 5 2 7 0.1
  • 0.0 0.1 2 0.1 -1 4 -0.2 2 0.7 13H4 12/29-03/29/93 68 2 8 5 2 4 0.0 2 0.3 0.0 2 0.3 -2 6 -0.1 0.6 03/29-06/28/93 75 2 8 -3 2 8- -0.4 0.4 -0.1 0.4 0 2 5 0.1 0.5 06/28-09/27/93 70 7. -14
  • 8 0.0 t 0.4 0.1 0.4- -5 5 -0.5 2 0.5 09/27-01/03/94 80 2 9 14 2 6 -0.1 2 0.4 0.1 2 0.4 -6 2 8 -0.6 2 0.7 MEAN 73 11 1 24 -0.1 2 0.4 0.0
  • 0.2 -3 2 6 -0.3 2 0.6

~

C - 14

TABLE C.VI.1 CONCENTRATIONS OF I.131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF E-3 PCI/CU. METER

  • 2 SIGMA GROUP I GROUP II GROUP III WEEK 1093 1131 1481 13C1 13H4 01 0 2 20 0 2 20 0 2 20 0 2 20 10 2 10 02 0 2 10 0 2 10 0
  • 10 0 e 10 20 2 30 03 0 2 10 0 2 10 0 a 10 0 2 10 10 s 10 04 0 z 10 0 e 10 0 2 10 0 2 10 0 2 20 05 -1 2 7 1 2 7 -2
  • 7 -2 2 7 0 z 20 06 0 2 20 0 z 20 0
  • 20 0 2 20 -10 2 10 07 10
  • 10 -10 2 10 10 2 10 10
  • 10 3 2 5 08 0 2 10 0 2 10 0 2 10 0 2 10 2
  • 7 09 6 7 6
  • 7 6 z7 6 2 7 4 2 5 10 0 2 20 0 2 20 0 2 20 0 2 20 0 2 10 11 0 2 10 10 2 10 10 2 10 5 2 10 5 2 6 12 0 2 20 0 2 20 0 2 20 0 2 20 0 2 7 13 0 2 10 0
  • 10 0 2 10 1 2 7 0 a 20 14 -10 2 10 -10 10 -10 2 10 -10 z 10 0 2 20 15 0 2 10 0 2 10 0 2 10 1 2 6 0 2 20 16 0 2 10 0 2 10 0 2 10 1 2 5 (1) 17 0 2 20 0 2 20 0
  • 20 0 2 10 0 2 20 18 0 2 20 0 2 20 0 2 20- 0 2 20 0 2 10 19 10 10 10 10 -10 10 -4 5 -10 e 10 ,

20 10

  • 10 10 10 10
  • 10 6
  • 6 10 10 l 21 0 2 10 0 z 10 0 10 0 2 10 2 2 8 22 0 2 10 0 2 10 0 s 10 0 2 10 1 2 6 23 10
  • 10 10 2 10 10 2 10 10
  • 10 10
  • 10 24 2 2 7 0 2 20 0 z 20 1 2 0 0
  • 20 25 10 2 20 -10 2 20 -10 2 20 10
  • 10 5 2 6 26 10 2 20 10 2 20 10 2 20 10 2 20 -3
  • 9 27 10 2 10 10
  • 10 10 2 10 3 2 6 0 2 10 28 0 e 10 0 z 10 0 10 2 2 9 10 30 29 0 z 10 0 2 10 0 2 10 2 2 6 0
  • 10 30 5 2 8 5 2 0 5 2 8 4 2 6 5 9 31 10 2 10 10 2 10 10 z 10 3 2 6 10 2 10 t 32 0 2 20 0
  • 20 0 2 20 0 2 20 0 2 10 l 33 0 2 10 0
  • 10 0 2 10 0 2 20 1 2 6 34 -2
  • 9 2 2 9 2 2 9 1
  • 6 -2 2 9 35 0
  • 20 0 2 20 0 2 20 0 2 7 0
  • 20 l 36 3 e 10 4 2 10 -3 2 10 0
  • 10 2 2 6 l j

37 10 2 20 10

  • 20 10
  • 20 10 2 20 2
  • 7 38 0
  • 10 0 10 0 z 10 0 10 0
  • 10 l I

39 10 2 10 10

  • 10 10
  • 10 3 2 7 10 2 20 40 0 2 10 0 a 10 0 10 -3
  • 8 0 2 10 41 10 2 10 10
  • 10 -10 2 10 -10
  • 10 (1) 42 10
  • 20 10 a 20 10 2 20 0 2 10 10 2 20 43 -10 2 10 10 m 10 -10 2 10 -10 2 10 (1) 44 3 2 8 3 2 8 3
  • 8 2 2 6 3
  • 8 45 0 2 10 0 2 10 0 2 10 0 10 (1)  !

0 1 2 6 0

  • 10 I 46 0 2 10 0
  • 10 2 10 47 2 2 8 2 2 8 2 2 8 2 2 8 10 2 10 48 0 2 10 0 2 10 0 z 10 0 2 10 2 2 6 49 10
  • 10 10 2 10 -10 2 10 4 m9 30 2 50 50 0 2 10 0 2 10 0 a 10 0 2 10 1 2 7 51 0 2 10 0 2 10 0 2 10 0 2 10 2 2 6 52 0 2 10 0 2 10 0 2 10 2 2 7 0 2 20 53 -10
  • 10 10 2 10 10 2 10 4 2 7 10
  • 10 MEAN 0 2 10 0 2 10 0 a 10 0 2 8 1 2 13 (1) SEE PROGRAH EXCEPTIONS SECTION FOR KIPLANATION l C - 15

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& On Oh 10 Im O *W e e4 Ifn On M b O e4 *W b e4 til m N nD *W 4 Q e4 O O O O N O e4 O e4 N e4 N e4 e4 W D N O e4 O e4 v4 M M e  %%%%%%%%%%%%%%%%%%N%%%% e 4 Q e4 N M af *@ af M M iS to no Pe b e W G On On O O e4 et N e4 H U O O O O O O O O O O O O O O O O O O 94 e4 e4 e4 e4

TABLE C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF LIMERICK 05NERATING STATION, 1993 RESULTS IN UNIT 8 OF PCI/ LITER s 2 SIGMA COL 13CTION E-40 CS-134 Cs 137 RA-140 LA-140 STC PERIOD 1031 01/ 9-01/19/93 1600 a 200 3 a3 1 a3 9 s9 1 a4 02/09-02/09/93 2500 e 300 -1 s4 3 a4 0 a 20 0 s 6 03/09-03/09/93 1700 a 200 -1 s3 0 *2 -1 s8 -1 a3 04/06-04/06/93 1600

  • 200 2 s3 3 a3 1 a 10 -2 s4 04/20-04/20/93 1500 a 200 0 a2 2 e2 -3 s6 3 s3 05/04-05/04/93 1600 e 200 -1 a3 1 s2 1 a8 -1 e3 05/10-05/18/93 1700 a 200 1 e2 1 a2 3 a7 1 a3 06/01-06/01/93 1800 s 200 -1 s3 0 a2 0 s8 1 a3 06/15-06/15/93 1600 a 200 -2 a3 6 s3 4 a7 5 a3 06/29-06/29/93 1600 s 200 -5 a3 3 *3 6 s9 -1 *4 07/13-07/13/93 1700 a 200 -1 e2 2 a2 1 s7 -1 a3 07/27-07/27/93 1700 s 200 -2 a2 2 s3 -6 *8 0 e4 08/10-08/10/93 1600 a 200 1 s2 -1 a2 -1 e7 -1 a2 08/24-08/24/93 1600 e 200 0 a2 1 a2 5 a8 0 a4 09/07-09/07/93 lb00 e 200 2 s2 1 s2 2 s7 0 *3

, 09/21-09/21/93 1200 a 100 0 s3 1 a3 -3 s9 1 a4 l 10/05-10/05/93 1400 a 100 0 *3 2 s3 -2 s9 3 a4 l 10/19-10/19/93 1300 a 100 0 a2 4 a2 -3 *7 2 s3 11/02-11/02/93 1500 a 100 1 a2 2 s2 0 e8 1 a4 11/16-11/16/93 1300 a 100 0 s2 2 s2 0 s7 2 a3 12/14-12/14/93 1400 s 100 2 a3 4 s1 3 s8 2 s3 KRAN 1600 a 500 0 e3 2 e3 1 s7 1 s3

, 18C1. 03/09-03/09/93 1100 a 100 1 a2 2 a2 -300 s 100 -30

  • 50
1. 04/06 04/06/93 1400 m 100 1 s2 2 a2 0 s 20 2 a8 l- 04/20-04/20/93 1400 a 100 2 s3 2 s3 -3 a 10 0 a4

! 05/04-05/04/93 1500 a 200 0 a2 1 s2 3 m7 1 a3 l 05/18-05/18/93 1500 e 100 -1 s2 0 s2 3 s7 -2 s3 i .06/01-06/01/93 1500 a 100 0 s2 1 a2 3 s7 2 e3 l 06/15-06/15/93 1300 s 100 0 e2 2 a2 -3 a6 1 s3

( 06/29-06/29/93 1400 a 100 1 a2 -1 a2 1 s8 -5 s4 l 07/13-07/13/93 1400 a 100 -1 s2 1 a2 0 a7 -2 e3 l 07/27-07/27/93 1400 a 100 2 s2 3 a2 -7 *8 0 a3 08/10 08/10/93 1400 a 100 0 s2 1 s2 -3 a6 3 a3 08/24-08/24/93 1300 s 100 0 s2 2 a2 5 a8 0 a3 09/07-09/07/93 1500 a 200 1 e2 0 s2 1 a7 1 a2 l 09/21-09/21/93 1500 s 200 0 a2 3 s2 -4 *7 -2 e3 i

10/05-10/05/93 1400 s 100 0 s2 2 s2 -2 *8 -2 *3 l 10/19-10/19/93 1400 s 100 -1 s2 1 a2 2 *8 0 a3 l- 11/02-11/02/93 1400 s 100 -1 a2 0 e2 -2 a8 1 a3 11/16-11/16/93 1400

  • 100 1 a2 0 s2 1 *7 -1 a3 12/14-12/14/93 1500 e 100 0 a2 2 a2 0 e8 1 s3 KRAN 1400 a 200 0 a2 1 s2 -16 a 133 -2 a 14 i

1991 01/19-01/19/93 1400 a 100 -2 s2 2 s2 1 a7 -1 s3 02/09-02/09/93 1200 s 100 0 a2 1 a2 4 a9 1 a3 03/09-03/09/93 1200 s 100 3 a3 3 *3 3 *9 1 s4

! 04/07-04/07/93 1400 e 100 1 s2 1 a2 1 *8 3 e4 04/20-04/20/93 1300 a 100 -1 *2 1 a2 -1 s7 -2 e3 05/04-05/04/93 1400 a 100 1 s2 1 a2 0 a6 4 a2 05/18-05/18/93 1400 a 100 0 a3 -1 a3 -2 *9 2 *3 06/01-06/01/93 1500 a 100 0 a2 0 e2 3 a6 0 a2 06/15 06/15/93 1200 a 100 0 a2 1 a2 -3 s5 0 a2 06/29-06/29/93 1400 s 100 -1 s2 3 a2 -1 e7 1 s3 07/13-07/13/93 1200 s 100 1 a3 3 a3 10 e 10 4 s4 07/27-07/27/93 1300 a 100 1 s2 3 a2 -4 a8 0 s3 08/11-08/11/93 1500 a 200 -1 e2 2 e2 1 a5 0 s2 08/24-08/24/93 1300 a 100 0 a2 0 a2 -2 s7 1 s3 09/07-09/07/93 1400 a 100 -1 s2 3 s2 -1 s8 -2 a3 09/21-09/21/93 1300 a 100 0 a2 0 a2 3 s7 -1 s3 10/05-10/05/93 1300 a 100 -3 e2 1 a2 -5 s7 -1 s3 10/19-10/19/93 1400 e 100 0 s2 2 a2 1 a8 -1 s3 i 11/02-11/02/93 1400 s 100 0 a2 0 *2 -3 s7 0 a 3. I 11/16-11/16/93 1600 a 200 -1 s2 3 a2 -1 s7 0 a3 ]

l 12/14-12/14/93 1400 s 100 0 a2 0 s2 4 *7 -2 e2 4

)

MEAN 1400 a 200 0 s2 1 a3 0 a6 0 s4 l C: - 17

TABLE C-VII.2 CONCENTRATIONS OF OAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RJtSULTS IN UNITS OF PCI/ LITER s 2 SIGMA COLLECTION K-40 Cs-134 cs.137 BA-140 LA.140 STC PERIOD 21B1 01/19-01/19/93 1400 s 100 1 a2 3 a2 0 a8 2 a3 02/09 02/09/93 1400 a 100- 1 s2 1 e2 2 a7 2 e3 03/09-03/09/93 1500 s 200 -3 e2 2 e2 6 e7 1 e3 04/06-04/06/93 1500 a 200 0 a2 0 e2 -6 *7 0 s2 04/20-04/20/93 1400 a 100 -1 e2 1 a2 -7 a8 1 e3 05/04-05/04/93 1500 a 200 2 s3 2 a3 0 a9 2- a4 05/18-05/18/93 1400 a 100 1 *2 1 a2 7 s7 1 a3 06/01-06/01/93 1500 e 100 1 a3 3 a3 1 s9 -1 a4 06/15-06/15/93 1500

  • 100 -1 a2 0 s2 0 s5 3 s2 06/29-06/29/93 1400 a 100 0 *2 2 s2 3 *7 2 a3 07/13 07/13/93 1400 e 100 0 *2 3 *2 1 e8 -2 s3 07/37 07/27/93 1300 s 100 1 s2 2 s2 2 *8 2 s3 08/10-08/10/93 1400 s 100 0 a2 0 e2 2 e5 1 a2 08/24-08/24/93 1300 a 100 4 a3 1 a3 10 a 10 -2 e4 09/07 09/07/93 1500 e 100 1 a3 1 s3 -8 a9 0 s4 09/21-09/21/93 1400 a 100 0 s3 2 s2 4 e8 0 s3 10/05-10/05/93 1400 s 100 1 a2 2 *2 -3 *7 -1 e3 10/19-10/19/93 1400 s 100 1 a2 1 s2 0 e8 -4 s4 11/02-11/02/93 1200 a 100 2 a3 2 a3 10 a 10 2 a4 11/16-11/16/93 1500 a 100 0 *2 2 e2 -4 a6 1- a2 12/14-12/14/93 1500 e 100 1 s2 1 a2 1 s6 1 a3 MEAN 1400 s 200 0 a3 2 a2 0 e 10 0 a3 22F1 01/19-01/19/93 1300 a 100 1 e2 1 e2 0 a8 -2 *3 02/09-02/09/93 1400 e 100 2 e3 3 e3 0 e 10 5 a4 03/09-03/09/93 1200 e 100 -1 e2 4 e2 3 e8 0 e3 04/06 04/06/93 1400 s 100 3 a3 2 s2 0 a8 1 e3 04/20-04/20/93 1400 a 100 0. *2 1 a2 2 s7 2 a3 05/04-05/04/93- 1300 a 100 0 e2 2 a2 2 =7 1 a3 05/18 05/18/93 1300 s 100 -1 e2 1 s2 0 s8 -2 s3 06/01-06/01/93 1200 a 100 1 s2 2 s2 -6 s8 -1 s3 06/15-06/1S/93 1300 s 100 0 s2 2 e2 1 a5 -3 a2 06/29-06/29/93 1400 a 100 -1 a2 2 e2 -2 s8 0 a3 07/13-07/13/93 1400 s 100 0 a3 2 s3 4 a9 2 a4 07/27-07/27/93 1200 a 100 -1 a2 1 s2 3 e8 -3 s3 08/10-08/10/93 1300 e 100 1 e2 1 a2 2 s5 1 e2 08/24-08/24/93' 1300 a 100 -2 a2 4 e2 -7 s8 1 s3 09/07-09/07/93 1300 a 100 -2 e2 2 e2 2 e8 2 a3 09/21-09/21/93 1300 a 100 1 a2 2 s2 0 a8 2 a3 10/05-10/05/93 1200 s 100 2 s3 3 a3 10 a 10 0 e4 30/19-10/19/93 1300 a 100 -2 e2 1 a2 -6 *9 2 s3 11/03-11/02/93 1200 a 100 0 a2 2 e2 -1 a9 0 a3 11/16-11/16/93 1300 e 100 0 e3 3 e3 -5 a9 0 a4 12/14-12/14/93 1300 s 100 1' s3 0 e3 -6 s9 ~1 *4 MEAN 1300 e 100 0 a3 2 s2 0 s8 0 a4 25B1 01/19-01/19/93 160C s 200 1 22 2 a2 4 m7 1 *2 02/09-02/09/93 1400 a 100 -1 *2 0 e2 2 e8 0 a4 MEAN 1500 a 300 0 a2 1 a2 3 a3 -1 *2

( - 18

TABLE C-72II.1 BCNTELE ' h R":SULT8 -*w2 RICK Ot3tERATING STATION, 1993 RESULTS IS UNITS OF MILLI-ROEN.'"*tN/STD. 383. 2 2 S.D.

JUN JUL AUG SEP OCT. NOY DEC ETATION MEAN e JAN FE8 MAR APR MAY CODE 2 S.D. (1) 0.3 8.4 s 1.2 7.9

  • 0.9 7.3 s 0.2 7.7 t 0.7 6.6 2 0.3 8.6 s 1.3 8.9 a 1.6 12.7 a 7.5 36s2 8.9 s 3.3 6.9 a 0.5 6.8 s 0.4 7.4 e 0.4 7.1 7.3 e 1.2 6.8 e 1.0 6.7 a 1.0 6.7 a 0.5 6.1 2 0.4 7.5 2 1.3 7.5 t 1.2 10.3
  • 6.3 231 7.1 a 2.2 6.3 t 0.3 7.2 s 0.6 6.9 m 0.2 6.4 s 0.3 7.7 0.3 7.6 2 0.6 7.9 2 0.5 7.5 s 0.8 6.7 s 0.4 8.2
  • 1.5 7.9
  • 0.9 8.1 a 0.3 2E1 7.4 a 1.3 6.9 e 0.4 6.1 s 0.4 7.0 a 0.2 7.1 a 0.3 6.0 a 0.4 7.5 a 0.3 7.6 a 0.4 7.0 a 0.5 7.3 a 0.9 6.6 2 0.4 8.4 s 1.8 7.6 2 0.1 8.1
  • 0.8 3 31 7.2 a 1. 4 6.4 a 0.2 6.2 a 1.8 6.5
  • 0.2 6.0 2 0.3 5.7 a 1.6 5.6 a 0.7 5.2 s 0.6 5.3 2 0.3 6.3 a 0.9 6.1 2 0.4 6.3 a 0.5.

SE1 5.7 m 0.8 5.3 2 0.4 5.7 m 0.4 5.5 a 0.2 5.1 a 0.4 7.9 a 0.6 7.6 s 0.8 7.5 t 0.5 7.7 s 0.4 7.3

  • 0.4 9.4 s 1.0 8.6 s 0.6 9.7
  • 0.6 5s1 8.1 m 1.6 7.7 a 0.4 8.0 s 0.6 7.3 a 0.1 7.9 2 0.2 7.8 a 0.8 8.8 m 0.4 8.2 e 1.9 8.4 a 0.3 8.5 e 0.8 0.0 s 0.6 10.6 s 1.2 10.1 2 3.2 10.9 e 1.6 SE1 8.8 a 2.3 7.9 a 0.3 7.7 e 1.0 8.1 a 0.3 6.9 a 0.3 8.1 a 1.5 8.1 t 1.2 7.8 a 0.6 7.7 s 0.5 6.9 a 0.6 8.0 a 1.9 7.4 e 1.2 8.4 a 1.8 6C1 7.5 s 1.2 6.7 2 0.4 6.6 a 0.5 7.1
  • 0.1 7.6 a 0.4 7.6 a 0.2 8.1 2 0.6 7.5 a 0.4 7.2 2 0.6 7.1 2 0.5 8.4 m 0.2 7.9 m 0.4 8.7 e 0.8 7C1 7.5 s 1.1 7.1 a 0.3 6.9 2 0.6 7.6 2 0.3 7.2 a 0.3 7.8 a 0.4 7.4
  • 1.2 6.5 a 1.5 6.8 a 0.8 6.5 t 0.1 8.7 a 1.6 7.5 a 0.7 9.1 a 0.3 7 El - 7.3 a 1. 9 6.8 a 0.5 5.8 a 0.3 7.1 a 0.3 6.8 e 0.2 7.4 z 0.1 7.5 a 1.4 7.2 t 0.4 7.3 e 0.6 6.1
  • 0.4 8.2 s 1.8 7.4 a 0.6 7.8 2 0.8 9C1 7.1 a 1.2 6.4 a 0.3 6.5 z 0.6 6.9 e 0.2 7.4 s 0.2 1.2 a 0.4 7.6 e 0.4 7.6
  • 0.9 7.0 2 0.7 7.2 1 0.7 6.8 s 0.4 8.6 e 1.2 7.8 t 0.6 8.9 a 0.9 1033 7.5 t 1.3 7.0 t 0.1 7.2 s 0.7 ,

7.0 2 0.5 7.4 2 1.1 7.5 2 0.7 7.7 a 0.9 6.8 e 0.7 7.5 s 0.8 6.4 s 0.3 8.4 a 0.9 8.0 a 1.0 9.3 2 1.6 10E1 7.5 t 1.6 6.8 e 0.3 6.9 a 0.5 7.6 m 0.6 7.9 s 0.6 7.0 a 0.9 7.7 2 1.8 6.8

  • 0.5 6.9 e 0.6 7.2 e 1.1 8.1 s 0.7 8.5 m 0.7 10F3 7.4 2 1.2 6.8 t 0.4 6.9 s 0.8 7.0 t 0.1 7.9 s 0.3 7.2 a 0.2 8.5
  • 0.8 8.5 a 1.1 7.7 2 1.1 8.5
  • 0.9 7.3 a 0.5 7.8 e 1.1 8.8 m 0.7 8.8
  • 0.8 1181 8.0 a 1.1 7.7 2 0.5 7.7 s 0.3 5.5 2 0.1 5.4 s 0.4 5.8 t 0.3 5.7 e 0.3 5.1 a 0.6 5.4 s 0.5 4.9 t 0.2 6.7 a 0.4 5.9 2 0.4 7.5 2 0.9 13C1 5.7 s 1.5 5.1 a 0.3 5.4 a 0.7 7.3 s 0.3 7.3 2 0.3 8.4 e 1.5 7.7 a 0.9 7.2 a 0.6 7.6 s 0.9 6.8
  • 0.9 8.4 a 1.6 8.2 e 0.6 8.5 e 0.2 1331 7.6 a 1.2 7.0 a 0.9 7.2 s 0.7 4.8 e 0.6 4.4 2 0.4 5.7 a 0.4 4.9 a 1.2 5.C a 0.4 4.1 2 0.3 4.7 e 0.1 5.0 a 0.7 5.7 a 0.7 6.2 a 0.5  ;

13M4 5.1 e 1.4 6.2

  • 0.3 4.3 t 0.3 6.4 z 0.3 6.7 a 0.5 6.0 2 0.3 7.1 a 0.8 6.9 s 1.0 5.9 2 2.3 6.7 t 0.5 6.1 2 0.4 7.0
  • 1. 0 6.9 s 0.6 7.9 a 0.8 1431 6.7 e 1.1 6.3 s 0.3 5.8 2 0.3 7.2 e 0.3 7.8
  • 0.5 7.8 a 0.2 7.4 e 1.6 6.9
  • 0.6 7.2 2 0.9 6.5 s 0.4 8.0 a 1.5 7.5 s 0.7 8.6 a 1.4 15D1 7.3 e 1.5 6.7 a 0.3 5.7 2 0.4 6.4 t 0.2 5.6 2 0.2 7.0 2 0.4 6.7 e 1.3 6.8 a 0.3 6.6 a 0.4 6.3 2 0.4 1.2 s 1.4 6.8 2 0.5 7.7 a 0.8 1632 6.6 2 1.2 6.0 a 0.4 7.1 a 0.3 7.6 a 0.4 7.5
  • 0.3 7.8 2 1.3 7.4 s 0.5 7.8 2 0.4 7.0 t 0.1 7.9 2 0.5 8.1 a 0.7 8.5 s 0.5 16F1 7.6 2 1.0 7.0 t 0.5 7.1 a 0.2 6.6 a 0.4 7.1 2 0.7 6.9 a 0.1 6.8 2 0.2 7.8 a 1.3 7.6 a 1.5 7.4 e 1.0 7.2 t 0.5 6.3 2 0.5 7.5 e 1.3 7.2 s 0.5 8.3 a 0.5-17B1 7.2 s 1.1 6.3 a 0.5 6.2 a 0.1 5.8 g 0.3 6.9 2 0.5 7.3 2 1.8 6.6 2 0.8 6.6 s 0.8 6.0 a 0.6 7.8 e 1.5 7.1 2 0.8 7.3 e 0.6 1851 6.72 1.3 -6.0
  • 0.3
1. MEAN AND TWO TIMES THE STANDARD DEVIATION OF THE WONTHLY RESULTS.
2. SES PROGRAM EXCEPTIONS SECTION FOR EXPLANATION.

C - 19

M TABLE C-VIII.1 tcMTELY TLD RESULTS FOR LIMERICK OENERATING STATION. 1993 RESULTS IN UNITS OF MILLI-RCENTQEtt/S*ID. 30. 2 2 8.D.

-STATION MEAN a JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOT DEC COD 3 2 8.D. (1) --

19G1 5.5 2 1.3 5.2 a 0.7 5.6 a 0.4 6.5 t 0.4 5.5 2 0.2 5.8 a 0.3 5.1 2 1.3 4.2 e 1. 9 5.1

  • 0.3 4.9
  • 0.5 5.4 2 0.7 6.0 a 0.5 6.5 1.8 19D1 6.8 a 1.3 6.2 a 0.3 6.2 a 0.1 6.8 a 0.1 7.3 a 0.6 6.6 a 0.5 7.5 a 0.7 6.0 a 2.0 6.3 a 0.4 6.3 a 0.3 7.7 2 1.5 7.4 2 0.7 7.9 t 0.4 20D1 7.0 s 1.1 6.9 a 0.4 6.7 e 0.4 7.2 a 0.6 6.4 2 0.3 7.5 a 0.8 6.9 t 1.4 6.9 2 0.7 7.1 2 0.7 5.8 2 0.3 6.9 2 0.6 7.6 e 0.9 7.7
  • 0.4 20F1 7.1 2 1.1 6.8 e 0.5 6.2 a 0.5 7.1 t 0.2 7.2 a 0.2 7.7 a 0.5 7.1 z 1.1 7.3 e 0.3 6.5 2 0.2 6.5
  • 0.7 8.2 e 0.6 7.5 s 1.0 7.3 e 0.6 21E1 6.4 a 1.3 5.9 a 0.2 6.0 0.2 6.3 a 0.1 6.2 a 0.5 7.2 2 0.4 6.5 e 0.8 5.4 s 2.1 7.0 t 0.4 5.5 s 0.3 '.6 2 1.6 6.9 a 0.5 6.6 e 0.5 2201 7.1 e 1.3 6.3 g 0.3 6.9 e 0.4 6.8 2 0.3 6.8 e 0.6 7.6 2 0.4 7.1 s 1.5 7.0 2 0.6 6.9 2 1.0 6.3 2 0.3 8.8 2 2.2 7.4
  • 0.2 7.0 a 0.3 2322 6.8 a 1.7 7.1 s 0.2 6.1 m 0.3 7.2
  • 0.2 6.1 2 0.8 7.8
  • 1.0 6.7 a 1.3 5.2 s 3.1 6.3 0.5 5.9 a 0.4 7.5 a 1.1 7.3 a 0.5 8.1 a 1.0 24D1 6.4 a 1.3 5.7 a 0.3 6.4 a 0.5 6.5 t 0.2 6.1
  • 0.2 6.6 e 0.5 6.2 e 1.2 5.8 a 0.5 7.0 a 0.8 5.5 t 0.2 7.5
  • 1.7 6.6 m 0.4 7.5 e 0.7 25s1 6.8 a 1.0 6.1 t 0.7 6.3 a 0.2 6.9
  • 0.8 6.7
  • 0.3 7.1 e 0.2 7.1 2 1.5 6.9 a 0.4 7.0
  • 0.3 5.7 t 0.3 6.8 s 0.9 7.1 2 0.5 7.3 2 0.4 23D1 6.3 s 1.2 5.7 a 0.3 5.2 a 0.3 6.5 e 0.1 6.0 t 0.4 7.1 e 1.2 6.3
  • 0.6 6.1 e 0.3 6.4 a 0.8 5.7 2 0.7 6.6
  • 1.2 6.6 e 0.7 7.4 e 1.8 2683 6.6 a 1.6 5.8 a 0.2 6.1 a 0.2 6.4 a 0.3 6.2 2 0.4 0.2 2 0.6 7.6 e 1.1 6.2 a 0.6 6.2 a 0.5 5.7
  • 0.4 6.8 a 0.7 6.5
  • O.6 7.8 a 1.9 25El 6.9 a 0.9 6.3 a 0.3 6.4 a 1.1 6.9 t 0.2 6.5 e 0.1 7.6 m 0.5 7.3 a 0.9 7.1 a 0.3 7.2 a 0.7 6.1
  • 0.3 6.9 a 0.6 7.2 a 0.4 7.2 a 0.3 28D2 6.9 t 1.0 6.3 a 0.4 6.3 t 0.4 6.8 a 0.2 6.6 2 0.2 7.9 2 0.7 6.9 a 1.0 6.9
  • 0.6 6.8
  • 0.5 6.8 2 0.4 7.9 a 1.6 6.9 a 0.4 7.2 e 0.6 2931 6.6 s 1.3 5.8 e 0.2 6.0 2 0.3 7.5 e 0.1 6.8 e 0.6 7.2 2 0.5 7.1 e 1.3 6.1 a 0.3 6.6 0.2 5.7
  • 0.4 6.8 t 1.9 6.5 2 0.2 7.5 t 0.3 2931 6.9 2 1.3 6.2 a 0.2 6.6 t 0.6 7.2
  • 0.3 6.7 e 0.4 7.9 a 1.5 7.5 a 0.5 5.9 a 0.8 7.2 e 0.5 6.3 a 0.6 6.8 a 0.3 7.1 2 0.5 7.8 a 0.6 22E1 6.9 a 1.0 6.6 a 0.6 6.4 2 0.5 7.2 a 0.2 6.7 1 0.2 7.8 a 0.6 7.1 4 0.9 6.6 a 1.0 7.0 a 0.1 6.2
  • 0.4 7.0 a 1.1 6.9 s 0.3 7.8 e 0.5 31D1 8.5 a 1.3 7.8 a 0.2 7.8 2 0.6 8.6
  • 0.4 8.9 2 0.6 9.6 a 0.4 9.6 2 1.7 8.1 a 1.0 9.0 t 0.3 7.8 e 0.5 9.0 a 1.0 8.7 2 0.6 8.5 a 1.0 31D2 7.5 a 1.2 6.8 t 0.3 7.3 a 0.3 7.9 2 0.1 7.4 a 0.7 8.5 t 1.5 7.0 a 1.1 7.5 a 0.5 7.3 e 0.5 6.7 2 0.5 7.4 e 1.3 7.6
  • 0.6 0.6 2 0.3 3231 5.8 a 1.1 5.3
  • 0.5 5.5 e 0.8 6.0 a 0.3 5.7
  • 0.6 6.4 a 1.0 5.6 2 1.3 5.6 2 0.5 5.4 a 0.4 5.3 2 0.5 5.9 2 0.4 5.7 2 0.5 7.2 s 1.3 3201 7.7 a 1.0 7.5 e 0.7 7.0 2 0.5 7.6 e 0.3 7.5 e 0.4 8.5 e 0.7 7.8 e 0.9 8.2 1 2.8 7.7 a 1.4 7.0 2 0.7 8.2 2 0.7 7.5 a 0.2 8.2 e 0.5 34E2 7.9
  • 1.0 8.0
  • O.4 7.6 e 0.7 8.0 2 0.4 8.4 a 1.0 8.4
  • 0.5 7.5 t 1.0 7.7 a 0.5 7.2 a 0.7 7.1 a 0.5 8.2 2 1.1 8.0 a 0.8 8.8
  • 0.2 3421 7.2
  • 0.8 7.4
  • 0.6 6.9 s 0.8 7.3 a 0.3 7.1 s 0.3 7.6 a 0.6 6.8 t 0.7 7.3
  • 0.9 6.9
  • 0.5 6.7 s 0.7 7.2 2 0.8 7.1 0.4 8.1 a 1.4 3521 7.3 a 1.3 7.2 t 0.3- 7.2 t 1.1 6.9 2 0.1 7.3 a 0.8 8.3 a 0.4 7.8 a 1.0 6.1 s 1.1 7.5 a 0.3 6.3 a 0.4 7.4 a 0.7 7.1 2 0.4 8.4 2 0.1 35F1 0.1 e 1.2 8.1 e 0.3 7.4 a 0.3 7.8 a 0.6 7.6 a 0.5 9.1 a 0.5 8.5 e 0.8 7.6 s 0.2 8.5 e 0.2 7.1 a 0.4 8.4 1.6 8.3 2 0.5 8.6 a 0.7
1. MEAN AND TWO TIMES THE STANDARD DEVIATION OF THE MONTHLY RESULTS.
2. SEE PROGRAM EECEPTIONS SECTION FOR EXPLANATION.

C .20

TABLE C.VIII.2 QUARTERLY TLD RESULTS FOR LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF HILLI-ROENTGEN /STD. MO. 2 2 S.D.

STATION MEAN z JAN-MAR APR-JUN JUL-SEP OCT-DEC CODE 2 S.D. (1) 36S2 6.0 2 1.7 7.7 2 0.7 5.7 2 0.7 6.8 2 0.1 7.2 2 0.3 2B1 5.7 2 1.4 6.1 2 0.2 4.7 2 0.4 6.1 0.2 6.0 2 0.3 2E1 6.3 2 1.2 6.4 0.2 5.5

  • 0.6 7.0 a 0.3 6.4 z 0.2 381 6.2 0.8 6.1 2 0.2 5.7 2 0.6 6.5 2 0.2 6.6 2 0.6 4E1 4.8 1.1 5.1 z 0.1 4.0 2 0.4 5.1
  • 0.1 5.0 2 0.6 5S1 7.0 2 1.5 7.0
  • 0.3 6.0 2 0.8 7.7 2 0.1 7.4 2 0.4 5H1 7.5 1.7 7.5
  • 0.2 6.4 2 0.7 8.0 2 0.2 8.3 2 0.7 6C1 6.4 2 1.4 6.4 2 0.2 5.4 2 0.6 7.0 2 0.1 6.8
  • 0.9 781 6.0
  • 1.8 6.7 t 0.2 5.6 0.6 7.1 2 0.3 7.7 2 0.5 7El 6.6 2 1.7 6.4 0.2 5.7 2 0.4 6.7 2 0.3 7.7 0.3 9C1 6.2 0.3 6.4 2 0.2 6.0 2 0.6 6.3
  • 0.2 6.2 2 0.4 1033 6.5 2 1.3 6.8 2 0.2 5.5 0.6 6.9 2 0.2 6.8 2 0.4 10E1 6.4 2 1.1 6.5 2 0.1 5.7 2 0.5 6.4 2 0.3 7.0 2 0.2 10F3 6.8 : 1.7 7.3 2 0.2 5.6 0.9 6.7 2 0.2 7.5 2 0.2 1131 7.3 0.3 7.2 2 0.3 7.3 0.9 7.6 2 0.2 7.3 t 0.4 13C1 4.9 1.4 5.1 2 0.2 4.0 2 0.3 4.7 2 0.1 5.7 0.3 13E1 6.3 2 1.3 6.6 2 0.2 5.3 2 0.6 6.6 2 0.2 6.7 2 0.3 13H4 4.4 2 0.6 4.7 0.1 4.4 2 0.5 4.0 2 0.2 4.5 z 0.9 14S1 6.0 2 1.5 6.7 2 0.3 4.9 0.3 6.3 2 0.3 6.0
  • 0.2 15D1 6.5 2 0.9 6.7 2 0.3 5.9 2 0.5 6.7 2 0.1 6.9 2 0.4 16S2 5.7 2 1.2 5.9 2 0.2 4.8 2 0.9 6.0 0.3 6.1 2 0.3 1GF1 6.6 1.2 6.6 2 0.2 5.7 2 0.8 7.1 2 0.3 6.9 2 0.3 17B1 6.1 2 0.4 6.2 2 0.2 6.0 2 0.6 5.9
  • 0.1 6.4 2 0.2 1881 5.5
  • 1.0 5.7 2 0.5 4.7 2 0.3 5.8 0.2 5.7 2 0.1 18G1 4.8
  • 0.9 5.2 2 0.2 4.4 2 0.3 4.5 2 0.2 5.3 2 0.1 19D1 6.1 2 0.5 6.2 2 0.2 5.8 2 0.8 6.4 z 0.1 6.2 2 0.5 i

20D1 5.5 2 1.2 5.9 2 0.2 4.6 0.4 5.7 2 0.1 5.8 2 0.2 l 20F1 6.1

  • 1.0 6.2 2 0.3 5.4 2 0.5 6.4 2 0.5 6.4 0.1 1 21S1 5.5 0.0 5.5 2 0.2 4.9
  • 0.6 5.6 2 0.2 5.9 z 0.0 2201 5.6 : 1.3 5.9  : 0.1 4.7 2 0.5 6.0 2 0.1 6.0 0.3 23S2 6.0 2 1.3 6.7 0.1 5.1 2 0.5 6.0 2 0.2 6.2 2 0.7 24D1 5.3 2 1.1 5.6 z 0.1 4.5 2 0.5 5.4 0.1 5.6 m 0.1 2581 5.7 2 1.3 5.8 2 0.3 4.0 2 0.5 5.8 2 0.3 6.3 0.2 25D1 5.2 2 1.0 5.6 2 0.2 4.5 2 0.5 5.4
  • 0.3 5.4 0.2 2683 5.5 2 0.2 5.5 0.1 5.5 2 0.8 5.5 2 0.1 5.7 2 0.2 ,

26D1 5.8 2 0.0 6.0 2 0.2 5.2 2 0.4 6.0 2 0.1 6.1 : 0.4 l 20D2 5.9 2 1.1 6.0 2 0.1 5.1 0.7 6.2 a 0.1 6.2 2 0.5 l 2981 5.3 2 1.0 5.6

  • 0.1 4.7 2 0.6 5.3 2 0.1 5.8 2 0.4 l 29B1 6.0 2 1.7 6.3 0.3 4.8 2 0.9 6.2 0.1 6.7 2 0.3 l 29El 5.9 : 1.2 6.2
  • 0.3 5.0
  • 0.3 6.2 z 0.3 6.1 2 0.4 31D1 7.3 2 1.2 7.7
  • 0.2 6.4 2 0.7 7.4 2 0.3 7.7 2 0.9 31D2 6.4 1.3 6.8 2 0.6 5.4 2 0.5 6.6 2 0.3 6.7 2 0.8 3281 4.7
  • 1.2 5.3 2 0.2 3.9 2 0.8 4.9 2 0.2 4.8 2 0.2 3201 6.4 z 0.9 6.7 2 0.2 5.8 z 1.0 6.7 2 0.1 6.6 2 0.4 3482 6.9 2 0.5 7.0 2 0.2 6.5 0.9 7.1 2 0.2 6.9 2 0.3 34E1 6.3 2 1.5 6.2 2 0.2 5.3
  • 0.7 6.6 2 0.1 7.1 2 0.3 35B1 6.3
  • 1.4 6.0 2 0.3 5.5
  • 0.5 6.7 2 0.3 7.1 2 0.8 35F1 6.7 2 1.3 6.8 2 0.2 5.0 2 0.8 7.3 2 0.3 6.9
  • 0.3
1. MEAN AND TWO TIMES THE STANDARD DEVIATION OF THE QUARTERLY RESULTS.
2. SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION.

I C - 21

l TABLE C-VII.3 1993 MEAN TLD RESULTS FROM LIMERICK CENERATING STATION FOR THE SITE BOUNDARY, MIDDLE, AND OUTER RINGS RESULTS IN UNITS OF MILLI-ROENTath/STD. MO.

  • 2 STANDARD DEVIATIONS OF THE STATION DATA SAMPLE EXPOSURE SITE '.CDDLE RING OUTER RING TYPE PERIOD MONTHLY JAN 1993 6.6 2 1.6 6.6 1.3 6.6 s 2.2 FEB 1993 6.5 s 1.5 6.6 1.3 6.3 s 2.7 MAR 1993 7.0 s 1.3 7.0 2 1.2 6.8 a 2.5 APR 1993 6.7 2 1.6 6.9 a 1.5 6.4 2 2.9 MAY 1993 7.5 2 1.2 7.7 s 1.6 7.3 s 2.9 i JUN 1993 7.3 s 1.4 7.3 s 1.6 6.6 2 3.1 JUL 1993 6.7 2 1.7 6.9 s 1.5- 6.6 s 3.8 AUG 1993 6.9 s 1.4 7.1 a 1.6 6.5
  • 3.6 SEP 1993 6.3 s 1.3 6.4 2 1.2 6.2 2 2.8 OCT 1993 7.7 2 1.8 7.6 s 1.4 7.6
  • 4.7 NOV 1993 7.4 s 1.8 7.4 s 1.3 7.3 2 3.5 DEC 1993 8.3 2 2.8 8.1 1.6 7. 8
  • 3. 8 QUARTERLY JAN-MAR 1993 6.3 1 1.5 6.3 s 1.1 6.0 s 2.3 APR-JUN 1993 5.3 2 1.6 5.3 2 1.2 5.1 2 1.8 JUL-SEP 1993 6.3 2 1.7 6.3 2 1.3 5.8 s 3.3 OCT-DEC 1993 6.4 2 1.6 6.5 s 1.3 6.1 s 2.9 TABLE C-VIII.4

SUMMARY

OF THE 1993 AMBIENT DOSIMETRY PROGRAM FOR LIMERICK GENERATING STATION RESULTS IN UNITS OF MILLI-ROENTGEN /STD. MO.

PERIOD PRE-OP SAMPLE NO. OF SAMPLES PERIOD PERIOD MEAN MEAN l TYPE LOCATION ANALYZED MINIMUM MAXIMUM 2 2 S.D. *2 S.D. (1)

MONTHLY SITE 192 5.2 12.7 7.1 s 2.0 7.6 2 2.4 MIDDLE RING 324 4.9 10.3 7.1 2 1.7 7.8 2 2.2 OUTER RING 60 4.1 10.9 6.8 s 3.1 7.8 s 3.0 QUARTERL7 SITE 64 3.9 7.7 6.1 1.8 MIDDLE RING 108 4.0 7.7 6.1 s 1.6 OUTER RING 20 4.0 8.3 5.8 s 2.5 (1) THE PRE-OPERATIONAL MEAN WAS CALCULATED FROM TLD READINGS 1 15-82 TO 12-02-84.

SITE BLUNDARY RING STATIONS - 381, SS1, 781,10S3,1181,1481,16S2,1881,

- 21S1,2382,25S1,26S3,2981,32S1,34S2,36S1,

- 36S2.

MIDDLE RING STATIONS - 2B3, 2El, 4E1, 6C1, 7E1, 9C1,10E1,10F3,

- 13 C1,13 E1,15D1,16F1,17 B1,19 D1,2 0D1,2 0F1,

- 24D1,2 5D1,2 6B1,2 8D2,2 9B1,2 9E1,31D1,31D2,

- 34E1,35B1,35F1.

OUTER RING STATIONS - 5H1,13H4,1801,22G1,32G1. .

t C.22

i TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 SURFACE WATER (GROSS BETA AND GAMMA)

COLLECTION 10F2 13B1 21S1 PERIOD JAN 93 12/29-02/01 12/29-02/01 11/29-02/01 PEB 93 02/01-03/01 02/01-03/01 0J/01-03/01 MAR 93 03/01-03/30 03/01-03/30 03/01-03/30 APR 93 03/30-04/27 03/30-04/27 03/30-04/27 MAY 93 04/27-06/01 04/27-06/01 04/27-06/01 '

JUN 93 06/01-06/29 06/01-06/29 06/01-06/29 JUL 93 06/29-08/02 06/29-08/02 06/29-08/02 AUG 93 08/02-08/31 08/02-08/31 08/02-08/31 SEP 93 08/31-09/27 08/31-09/27 08/31-09/27 OCT 93 09/27-11/01 09/27-11/01 09/27-11/01 NOV 93 11/01-11/29 11/01-11/29 11/01-11/29 DEC 93 11/29-12/27 11/29-12/27 11/29-12/27 SURFACE WATER (TRITIUM)

JAN-MAR 93 12/29-03/3C 12/29-03/30 12/29-03/30 APR-JUN 93 03/30-06/29 03/30-06/29 03/30-06/29 JUL-SEP 93 06/29-09/27 06/29-09/27 06/29-09/27 OCT-DEC 93 09/27-12/27 09/27-12/27 09/27-12/27 DRINKING WATER (GROSS BETA AND GAMMA)

COLLECTION 13H2 15F4 15F7 16C2 20F3 PERIOD JAN 93 12/29-02/01 12/29-02/01 12/29-02/01 12/29-02/01 12/29-02/01 FEB 93 02/01-03/01 02/01-03/01 02/01-03/01 02/01-03/01 02/01-03/01 MAR 93 03/01-03/30 03/01-03/30 03/01-03/30 03/01-03/30 03/01-03/30 APR 93 03/30-04/27 03/30-04/27 03/30-04/27 03/30-04/27 03/30-04/27 MAY 93 04/27-06/01 04/27-06/01 04/27-06/01 04/27-06/01 04/27-06/01 JUN 93 06/01-06/29 06/01-06/29 06/01-06/29 06/01-06/29 06/01-06/29 JUL 93 06/29-08/02 06/29-08/02 06/29-08/02 06/29-08/02 06/29-08/02 AUG 93 08/02-08/31 08/02-08/31 08/02-08/31 08/02-08/31 08/02-08/31.

SEP 93 08/31-09/27 08/31-09/27 08/31-09/27 08/31-09/27 08/31-09/27 OCT 93 09/27-11/01 09/27-11/01 09/27-11/01 09/27-11/01 09/27-11/01 NOV 93 11/01-11/29 11/01-11/29 11/01-11/29 11/01-11/29 11/01-11/29 DEC 93 11/29-12/27 11/29-12/27 11/29-12/27 11/29-12/27 11/29-12/27 DRINK #G WATER (TRITIUM)

JAN-MAR 93 12/29-03/30 12/29-03/30 12/29-03/30 12/29-03/30 12/29-03/30 APR-JUN 93 03/30-06/29 03/30-06/29 03/30-06/29 03/30-06/29 03/30-06/29 JUL-SEP 93 06/29-09/27 06/29-09/27 06/29-09/27 06/29-09/27 06/29-09/27 OCT-DEC 93 09/27-12/27 09/27-12/27 09/27-12/27 09/27-12/27 09/27-12/27 C - 23 1

1

TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 AIR PARTICULATES AND AIR IODINE GROUP I - ON-SITE LOCATIONS WEEK 1083 11S1 lasi 34S2 01 12/29-01/04 12/29-01/04 12/29-01/04 12/29-01/04 02 01/04-01/11 01/04-01/11 01/04-01/11 01/04-01/11-03 01/11-01/10 01/11-01/18 01/11-01/18 01/11-01/18 04 01/18-01/25 01/18-01/25 01/18-01/25 01/16-01/25 05 01/25-02/02 01/25-02/02 01/25-02/01 01/25-02/02 06 02/01-02/08 02/01-02/08 02/01-02/08 02/01-02/08 07 02/08-02/15 02/08-02/15 02/08-02/15 02/08-02/15 08 02/15-02/22 02/15-02/22 02/15-02/22 02/15-02/22 09 02/22-03/01 02/22-03/01 02/22-03/01 02/22-03/01 10 03/01-03/08 03/01-03/08 03/01-03/08 03/01-03/08 11 03/08-03/16 03/08-03/16 03/08-03/16 03/08-03/16 12 03/16-03/22 03/16-03/22 03/16-03/22 03/16-03/22 13 03/22-03/29 03/22-03/29 03/22-03/29 03/22-03/29 14 03/29-04/05 03/29-04/05 03/29-04/05 03/29-04/05 15 04/05-04/12 04/05-04/12 04/05-04/12 04/05-04/12 +

16 04/12-04/20 04/12-04/20 04/12-04/20 04/12-04/20 17 04/20-04/26 04/20-04/26 04/20-04/26 04/20-04/26 18 04/26-05/03 04/26-05/03 04/26-05/03 04/26-05/03 l 19 05/03-05/10 05/03-05/10 05/03-05/10 05/03-05/10 1

20 05/10-05/17 05/10-05/17 05/10-05/17 05/10-05/17 21 05/17-05/24 05/17-05/24 05/17-05/24 05/17-05/24 22 05/24-05/31 05/24-05/31 05/24-05/31 05/24-05/31 23 05/31-06/08 05/31-06/08 05/31-06/08 05/31-06/08 24 06/08-06/14 06/08-06/14 06/08-06/14 06/08-06/14 25 06/14-06/21 06/14-06/21 06/14-06/21 06/14-06/21 26 06/21-06/28 06/21-06/28 06/21-06/28 06/21-06/28 "

27 06/28-07/06 06/28-07/06 06/28-07/06 06/28-07/06 l

28 07/06-07/12 07/06-07/12 07/06-07/12 07/06-07/12 29 07/12-07/19 07/12-07/19 07/12-07/19 .07/12-07/19 30 07/19-07/26 07/19-07/26 07/19-07/26 07/19-07/26

( 31 07/26-08/02 07/26-08/02 07/26-08/02 07/26-08/02 l 32 08/02-08/09 09/02-08/09 08/02-08/09 08/02-08/09 l 33 08/09-08/16 08/09-08/16 08/09-08/16 08/09-08/16 34 08/16-08/24 08/16-08/24 08/16-06/24 08/16-08/24 35 08/24-08/30 08/24-08/30 08/24-08/30 08/24-08/30 36 08/30-09/07 08/30-09/07 08/30-09/07 08/30-09/07 37 09/07-09/13 09/07-09/13 09/07-09/13 09/07-09/13 38 09/13-09/20 09/13-09/20 09/13-09/20 09/13-09/20 39 09/20-09/27 09/20-09/27 09/20-09/27 09/20-09/27 40 09/27-10/04 09/27-10/04 09/27-10/04 09/27-10/04 41 10/04-10/12 10/04-10/12 10/04-10/12 10/04-10/12 42 10/12-10/10 10/12-10/18 10/12-10/18 10/12-10/18 43 10/18-10/25 10/18-10/25 10/18-10/25 10/18-10/25 44 10/25-11/01 10/25-11/01 10/25-11/01 10/25-11/01 45 11/01-11/08 11/01-11/08 11/01-11/08 11/01-11/08 46 11/08-11/15 11/08-11/15 11/08-11/15 11/08-11/15 47 11/15-11/22 11/15-11/22 11/15-11/22 11/15-11/22 48 11/22-11/29 11/22-11/29 11/22-11/29 11/22-11/29 49 11/29-12/06 11/29-12/06 11/29-12/06 11/29-12/06 50 12/06-12/13 12/06-12/13 12/06-12/13 12/06-12/13 51 1?.13-12/20 12/13-12/20 12/13-12/20 12/13-12/20 52 12/20-12/27 12/20-12/27 12/20-12/27 12/20-12/27 53 12/27-01/03 12/27-01/03 12/27-01/03 12/27-01/03 C - 24

t i

TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 AIR PARTICULATES AND AIR IODINE GROUP II - INTERMEDIATE DISTANCE LOACATIONS ,

KEEK 2B1 6C1 9C3 13C1 15D1 17B1 C1 12/29-01/04 12/29-01/04 12/29-01/04 12/29-01/04 12/29-01/04 12/29-01/04 02 01/04-01/11 01/04-01/11 01/04-01/11 01/04-01/11 01/04-01/11 01/04-01/11 03 01/11-01/18 01/11-01/18 01/11-01/18 01/11-01/18 01/11-01/18 01/11-01/18 04 01/18-01/25 01/18-01/25 01/18-01/25 01/18-01/25 01/18-01/25 01/18-01/25 05 01/25-02/02 01/25-02/01 01/25-02/01 01/25-02/01 01/25-02/01 01/25-02/01 06 02/01-02/08 02/01-02/08 02/01-02/08 02/01-02/08 02/01-02/08 02/01-02/08 07 02/08-02/15 02/08-02/15 02/08-02/15 02/08-02/15 02/08-02/15 02/08-02/10 08 02/15-02/22 02/15-02/22 02/15-02/22 02/15-03/22 02/15-02/22 02/15-02/22 09 02/22-03/01 02/22-03/01 02/22-03/01 02/22-03/01 02/22-03/01 02/22-03/01 10 03/01-03/08 03/01-03/08 03/01-03/08 03/01-03/08 03/01-03/08 03/01-03/08 il 03/08-03/16 03/08-03/16 03/08-03/16 03/08-03/16 03/08-03/16 03/08-03/16 12 03/16-03/22 03/16-03/22 03/16-03/22 03/16-03/22 03/16-03/22 03/16-03/22 '

13 03/22-03/29 03/22-03/29 03/22-03/29 03/22-03/29 03/22 03/29 03/22-03/29 14 03/29-04/05 03/29-04/05 03/29-04/05 03/29-04/05 03/29-04/05 03/29-04/05 15 04/05-04/12 04/05-04/12 04/05-04/12 04/05-04/12 04/05-04/12 04/05-04/12 16 04/12-04/20 04/12-04/20 04/12-04/20 04/12-04/20 04/12-04/20 04/12-04/20 17 04/20-04/26 04/20-04/26 04/20-04/26 04/20-04/26 04/20-04/26 04/20-04/26 18 04/26-05/03 04/26-05/03 04/26-05/03 04/26-05/03 04/26-05/03 04/26-05/03 19 05/03-05/10 05/03-05/10 05/03-05/10 05/03-05/10 05/03-05/10 05/03-05/10 20 05/10-05/17 05/10-05/17 05/10-05/17 05/10-05/17 05/10-05/17 05/10-05/17 21 05/17-05/24 05/17-05/24 05/17-05/24 05/17-05/24 05/17-05/24 05/17-05/24

  • 22 05/24-05/31 05/24-05/31 05/24-05/31 05/24-05/31 05/24-05/31 05/24-05/31 23 05/31-06/08 05/31-06/08 05/31-06/08 05/31-06/08 05/31-06/08 05/31-06/08 24 06/08-06/14 06/08-06/14 06/08-06/14 06/08-06/14 06/08-06/14 06/08-06/14 25 06/14-06/21 06/14-06/21 06/14-06/21 06/14-06/21 06/14-06/21 06/14-06/21 26 06/21 06/28 06/21-06/28 06/21-06/28 06/21-06/28 06/21-06/28 06/21-06/28 27 06/28-07/06 06/28-07/06 06/28-07/06 06/28-07/06 06/28-07/06 06/28-07/06 28 07/06-07/12 07/06-07/12 07/06-07/12 07/06-07/12 07/06-07/12 07/06-07/12 29 07/12-07/19 07/12-07/19 07/12-07/19 07/12-07/19 07/12-07/19 07/12-07/19 30 07/19-07/26 07/19-07/26 07/19-07/26 07/19-07/26 07/19-07/26 07/19-07/26 31 07/26-08/02 07/26-08/02 07/26-08/02 07/26-08/03 07/26-08/02 07/26-08/02 32 08/02-08/09 08/02-08/09 08/02-08/09 08/02-08/09 08/02-08/09 08/02-08/09 33 08/09-08/16 08/09-08/16 08/09-08/16 08/09-08/16 08/09-08/16 08/09-08/16 34 08/16-08/24 08/16-08/24 08/16-08/24 08/16-08/24 08/16-08/24 08/16-08/24 35 08/24-08/30 08/24-08/30 08/24-08/30 08/24-08/30 08/24-08/30 08/24-08/30 36 08/30-09/07 08/30 09/07 08/30-09/07 08/30-09/07 08/30-09/07 08/30-09/07 37 09/07-09/13 09/07-09/13 09/07-09/13 09/07-09/13 09/07-09/13 09/07-09/13 38 09/13-09/20 09/13-09/20 09/13-09/20 09/13-09/20 09/13-09/20 09/13-09/20 39 09/20-09/27 09/20-09/27 09/20-09/27 09/20-09/27 09/20-09/27 09/20-09/27 40 09/27-10/04 09/27-10/04 09/27-10/04 09/27-10/04 09/27-10/C4 09/27-10/04 41 10/04-10/12 10/04-10/12 10/04-10/12 10/04-10/12 10/04-10/12 10/04-10/12 42 10/12-10/18 10/12-20/18 10/12-10/18 10/12-10/18 10/12-10/18 10/12-10/18 43 10/18-10/25 10/18-10/25 10/18-10/25 10/18-10/25 10/13 10/25 10/18-10/25 44 10/25-11/01 10/25-11/01 10/25-11/01 10/25-11/01 10/25-11/01 10/25-11/01 45 11/01-11/08 11/01-11/08 11/01-11/08 11/01-11/08 11/01-11/08 11/01-11/08 46 11/08-11/15 11/08-11/15 11/08-11/15 11/08-11/15 11/08-11/15 11/08-11/15 47 11/15-11/22 11/15-11/22 11/15-11/22 11/15-11/22 11/15-11/22 11/15-11/22 48 11/22-11/29 11/22-11/29 11/22-11/29 11/22-11/29 11/22-11/29 11/22-11/29 49 11/29-12/06 11/29-12/06 11/29-12/06 11/29-12/06 11/29-12/06 11/29-12/06 50 12/06-12/13 12/06-12/13 12/06-12/13 12/06-12/13 12/06-12/13 12/06-12/13 51 12/13-12/20 12/13-12/20 12/13-12/20 12/13-12/20 12/13-12/20 12/13-12/20 52 12/20-12/27 12/20-12/27 12/20-12/27 12/20-12/27 12/20-12/27 12/20-12/27 53 12/27-01/03 12/27-01/03 12/27-01/03 12/27-01/03 12/27-01/03 12/27-01/03 C - 25

L e TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 AIR PARTICULATES AND AIR IODINE GROUP II - INTERMEDIATE DISTANCE LOACATIONS WEEK 20D1 26B1 29B1 31D1 35B1 01 12/29-01/04 12/29-01/04 12/29-01/04 12/29-01/04 12/29-01/04 02 01/04-01/11 01/04-01/11 01/04-01/11 01/04-01/11 01/04-01/11 03 01/11-01/18 01/11-01/18 01/11-01/18 01/11-01/18 01/11-01/18 04 01/18-01/25 01/18-01/25 01/18-01/25 01/18-01/25 01/18-01/25 05 01/25-02/01 01/25-02/01 01/25 02/01 01/25-02/02 01/25-02/02 06 02/01-02/08 02/01-02/08 02/01-02/08 02/01-02/08 02/01-02/08 07 02/08-02/15 02/08-02/15 '02/08-02/15 02/08-02/15 02/08-02/15 08 02/15-02/22 02/15-02/22 02/15-02/22 02/15-02/22 02/15-02/22 09 02/22-03/01 02/22-03/01 02/22-03/01 02/22-03/01 02/22-03/01 10 03/01-03/08 03/01-03/08 03/01-03/08 03/01-03/08 03/01-03/08 11 03/08-03/16 03/08-03/16 03/08-03/16 03/08-03/16 03/08-03/16 12 03/16-03/22 03/16-03/22 03/16-03/22 G3/16-03/22 03/16-03/22 13 03/22-03/29 03/22-03/29 03/22-03/29 03/22-03/29 14 03/29-04/05 03/29-04/05 03/29-04/05 03/29 04/05 03/29-04/05 15 04/05-04/12 04/05-04/12 04/05-04/12 04/05-04/12 04/05-04/12 16 04/12-04/20 04/12-04/20 04/12-04/20 04/12-04/20 04/12-04/20 17 04/20-04/26 04/20-04/26 04/20-04/26 04/20-04/26 04/20-04/26 18 04/26-05/03 04/26-05/03 04/26-05/03 04/26-05/03 04/26-05/03 19 05/03-05/10 05/03-05/10 05/03-05/10 05/03-05/10 05/03-05/10 20 05/10-05/17 05/10-05/17 05/10-05/17 05/10-05/17 05/10-05/17 21 05/17-05/24 05/17-05/24 05/17-05/24 05/17-05/24 05/17-05/24 22 05/24-05/31 05/24-05/31 05/24-05/31 05/24-05/31 05/24-05/31 23 05/31-06/08 05/31-06/08 05/31-06/08 05/31-06/08 05/31-06/08 24 06/08-06/14 06/08-06/14 06/08-06/14 06/08-06/14 25 06/14-06/21 06/14-06/21 06/14-06/21 06/14-06/21 06/14-06/21 26 06/21-06/28 06/21-06/28 06/21-06/28 06/21-06/28 06/21-06/28 27 06/28-07/06 06/28-07/06 06/28-07/06 06/28-07/06 06/28-07/06 28 07/06-07/12 07/06-07/12 07/06-07/12 07/06-07/12 29 07/12-07/19 07/12-07/19 07/12-07/19 07/12-07/19 07/12-07/19 30 07/19-07/26 07/19-07/26 07/19-07/26 07/19-07/26 07/19-07/26 31 07/26-08/02 07/26-08/02 07/26-08/02 07/26-08/02 07/26-08/02 32 08/02 08/09 08/02-08/09 08/02-08/09 08/02-08/09 08/02-08/09 33 08/09-08/16 08/09-08/16 08/09-08/16 08/09-08/16 08/09-08/16 34 08/16-08/24 08/16-08/24 08/16-08/24 08/16-08/24 08/16-08/24 35 08/24-08/30 08/24-08/30 08/24-08/30 08/24-08/30 08/24-08/30 36 08/30-09/07 08/30-09/07 08/30-09/07 08/30-09/07 08/30-09/07 37 09/07-09/13 09/07-09/13 09/07-09/13 09/07-09/13 38 09/13-09/20 09/13-09/20 09/13-09/20 09/13-09/20 09/13-09/20 39 09/20-09/27 09/20-09/27 09/20-09/27 09/20-09/27 09/20-09/27 40 09/27-10/04 09/27-10/04 09/27-10/04 09/27-10/04 09/27-10/04 41 10/04-10/12 10/04-10/12 10/04-10/12 10/04-10/12 10/04-10/12 42 10/12-10/18 10/12-10/18 -10/12-10/18 10/12-10/18 10/12-10/18 43 10/18-10/25 10/18-10/25 10/18-10/25 10/18-10/25 10/18-10/25 44 10/25-11/01 10/25-11/01 10/25-11/01 10/25-11/01 10/25-11/01 45 11/01-11/08 11/01-11/08 11/01-11/08 11/01 11/08 11/01-11/08 46 11/08-11/15 11/08-11/15 11/08-11/15 11/08-11/15 11/08-11/15 47 11/15-11/22 11/15-11/22 11/15-11/22 11/15-11/22 11/15-11/22 48 11/22-11/29 11/22-11/29 11/22-11/29 11/22-11/29 11/22-11/29 49 1./29-12/a' 11/29-12/06 11/29-12/06 11/29-12/06 11/29-12/06 50 12/06-12/13 14/08-12/13 12/06-12/13 12/06-12/13 12/06-12/13 51 12/13-12/20 12/13-12,2* 12/13-12/20 12/13-12/20 12/13-12/20 52 12/20-12/27 12/20-12/27 12/20-12/27 12/20-12/27 12/20-12/27 53 12/27-01/03 12/27-01/03 12/27-01/03 12/27-01/03 12/27-01/03

( - 26

r o .

1 TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK OENERATING STATION, 1993 ~

AIR PARTICULATES AND AIR IODINE GROUP III - CONTROL LOACATIONS WEEK 13H4 2201 01 12/29-01/04 12/29-01/04 02 01/04-01/11 01/04-01/11 03 01/11-01/19 01/11-01/18 04 01/19 01/25 01/18-01/25 05 01/25-02/01 01/25-02/01 06 02/01-02/08 02/01-02/08 07 02/08-02/16 02/08-02/15 08 02/16-02/22 02/15-02/22 09 02/22-03/01 02/22-03/01 10 03/01-03/08 03/03-03/08 11 03/08-03/16 03/08-03/16 12 03/16-03/22 03/16-03/22 13 03/22-03/29 13/22-03/29 14 03/29-04/05 01/29-04/05 l 15 04/05-04/12 04/05-04/12 16 04/11-04/20 l 17 04/20-04/26 04/20 94/26 18 04/26-05/03 04/26-05/03 ,

19 05/03-05/10 05/03-05/10 20 05/10-05/17 05/10-05/17 21 05/17-05/24 05/17-05/24 22 05/24 06/01 05/24-05/31 23 06/01-06/08 05/31-06/08 24 06/08-06/14 06/08-06/14 25 06/14-06f21 06/14-06/21 26 06/21-06/28 06/21-06/28

.27 06/28-07/06 06/28-07/06 28 07/06-07/12 -07/06-07/12 29 07/12-07/19 07/12-07/19 30 07/19-07/26 07/19 07/26 31 07/26-08/02 07/26-08/02 32 08/02-08/09 08/03-08/09 33 08/09-08/16 08/09-08/16 34 06/16-08/24 08/16-08/24 35 08/24-08/30 08/24-08/30 36 08/30-09/07 08/30-09/07 37 09/07-09/13 09/07-09/13 1 38 09/13-09/20 09/13-09/20  !

39 09/20-09/27 09/20-09/27 1 40 09/27-10/04 09/27-10/04 1 41 .

10/04-10/12  ;

42 10/12-10/10 10/12-10/18 43 10/18-10/25 de 10/25-11/01 10/25-11/01 45 11/01-11/08 46 11/08-11/15- 11/08-11/15 .l 47 11/15-11/22 11/15-11/22 l 48 11/22-11/29 11/22-11/29 i 49 11/29-12/06 11/29-12/06 '

50 12/06-12/13 12/06-12/13 i 51 12/13-12/20 12/13-12/20 52 12/20-12/27 12/20-12/27 )

53 12/27-01/03 12/27-01/03 l 1

)

i i

C: - 27

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TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LINERICK GENERATING STATION, 1993 TLD - QUARTERLY JAN-MAR APR-JUN JUL-SEP OCT-DEC STATION 1993 1993 1993 1993 CODE 36S2 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 2B1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 2E1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 381 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 4E1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 5S1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 5H1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 6C1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 7S1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 7El 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 9C1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 10S3 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 10E1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 10F3 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 1131 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 13C1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 13E1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 13H4 01/11-04/05 04/05-07/06 07/06-10/04 10/04-01/05 14S1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 15D1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 16S2 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 16F1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 17B1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 1BS1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 18G1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 19D1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 20D1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 20F1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 21S1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 22G1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 23S2 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 24D1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 25S1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 25D1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 26S3 01/05 04/06 04/06-07/06 07/06-10/05 10/05-01/04 26B1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 28D2 01/05 04/06 04/06-07/06 07/06-10/05 10/05-01/04 29S1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 29B1 01/Ob-04/06 04/06-07/06 07/06-10/05 10/05-01/04 29El 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 31D1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 31D2 01/05-04/06-04/06-07/06 07/06-10/05 10/05-01/04 3281 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 32G1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 3482 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 34E1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 35B1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 35F1 01/05-04/06 04/06-07/06 07/06-10/05 10/05-01/04 i

)

C - 29

~

FIGURE C-1 MEAN MONTHLY INSOLUBLE GROSS BETA CONCENTRATIONS IN. SURFACE -

WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1993 15 ,

- + CONTROL-4

  • INDICATOR A I

. 10  !

~

i, g3 11

( -

L, _ . .

l' 11

, g

,g h

55 / i, ig Q' -1 It A '

h II, II

.Q. g-gag

- I 11 ,

,4

,,'^ 'a,

-g' f -

a O

_ LGS CRITICALITY

~

UNIT NO. 1: 12/22/84

' UNIT NO. 2: 08/11/89

-5 5"""""""""""""'"""""""""'""'""""""""""""""""""'"""""'""'""""""""""""'"""""" ~

15'9115915.91-5:9159:1591.59'15915915-9159159

82 l 83~l. 84.'l 85 l.l86'l'87 _l- 88 l 89.l 90:l 91 l'92 l'93-

- iYEAR -

= _ , . . . . .- .

FIGURE C-2 MEAN MONTHLY SOLUBLE GROSS BETA CONCENTRATIONS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1993 15 1 -o- CONTROL

'~

  • IN DICATOR 10 A

o Q A

~

[ h h Il h ,

55

~

n z I 'E 8 M '.

6a - >

9 1 3

r  :-

M,-l tag aili e 69 A '

a a^,

a 0

~

~

LGS CRITICALITY UNIT NO.1: 12/22/84 UNIT NO. 2: 08/11/89

-5""""""""'"""""'""'"""""""""'""'"""'""""""'""'"""'""""""""""""""'"'""""'""""""

159159159159159159159159159159159159 82 l 83 l 84 l 85 l 86 l 87 l 88 l 89 l 90 l 91 l 92 l 93 YEAR

FIGURE C-3 MEAN: MONTHLY: INSOLUBLE GROSS: BETA' CONCENTRATIONS IN DRINKING

-WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1993.

6 a

~

CONTROL

  • INDICATOR 4 o n

LGS CRITICALITY

~

UNIT NO.1: 12/22/84 6 UNIT NO. 2: 08/11/89

G -

l 5 A i D2 ri g O -- l i

g a 6 Q. 't A 'l A 6 h

i I 'i , i A a l

--gfpg 4-8 p,it-g Y '

O g l gg o ' _60

~

0 l -

-2 15-9.159159159159159159159159.15-9159.15_9  :

'82:l.83'.-l 84^-l.85 l 86!l 87 l 88-l 89 l 90 -l 91 l__92-l 93 l

l YEAR

FIGURE C-4 MEAN MONTHLY SOLUBLE GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1993 25 _

+ CONTROL 2

  • IN DICATOR 15 _

mm 3 10 O I g h 4 l Q _ i 11 g 1

Q l 1 i L 5 <

GQ Q-

[.

"*d#

. eo p e o c .

Q LGS CRITICALITY UNIT NO.1: 12/22/84 UNIT NO. 2: 08/11/89 l in n nin n nin n nin o n nin n n n n n nin ninin 'u n n n nin n inin nin in o n nin ni nino n n in n nin nini n n n n n n n ni 3

159159159159159159159159159159159159 82 l 83 l 84 l 85 l 86 l 87 l 88 l 89 l 90 l 91 l 92 l 93 l

YEAR l

D

G-FIGURE C-5 MEAN ANNUAL CS-137 CONCENTRATIONS IN FISH SAMPLES

' COLLECTED IN THE VICINITY OF LGS, 1982 - 1993 20- , ,

T16C5.

Y -

UNIT NO.1: 12/22/84 g

g. ._ UNIT NO. 2: 08/11/89 E _

1 m

w 10 $ m ^

CD .

O

,1

-] hg L - -

=>

Q a.

/ ,

y J \M/ '

/

o

./

a s

'l . '& 'D ,

O  !  !  ! .! l l l l l 82 83 84 -- 8 5 86 87- 88 89 90 91 92 93 .

CoNTnot = 2sc1 YEAR

FIGURE C-6 CONCENTRATIONS OF CS-137 IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1993 2

~

-o 16B2 1.5

  • 16C4 LGS CRITICALITY
  • 33A2 V -

UNIT NO.1: 12/22/84

_ UNIT NO. 2: 08/11/89 E-1 g

u _

y _

o. _

0.5 0 ' ' ' ' '? "' ' '" ' d -

% * '" ' '" 'X' l' ' X ' X ' "' ' 4 1 3 1' 3 1 3 1 3 1 3 1 '3 1 3 1. 3 1 3 1 3 1 3 1 3-82-l 83 l 84 l 85.l 86 l 87'l 88'l 89 l 90 l 91 -l 92 l 93 CONTROL = 33A2 QUarterNear

.. = _ = _ _ _ _ _ _ - _ _ _ _ _ _ _

FIGURE C-7 MEAN WEEKLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LGS,1993

40. ,

+ GROUP l

~

  • GROUP 11 . .

'i .

~

5 30 + G R O U P 111  !

lii 1

E _

.9

? . \

l3 20 - ,

e -(0  ?

s 7{

5o. -

. p. .

/ '.

c? . 1 m 10 ,

0 '*l !!!!ll!li ! !!l

1 4 7 10-13 16 19 22 25 28 31 34 37 40 43 46 49 52 ,

WEEK NO.

FIGURE C-8 MEAN MONTHLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1993 150 _

135

"3- Group i 12 g ~

E i + Group til 90 $

.o

.o -

l3 75 -l

~

o _

LGS CRITICALITY Q  : UNIT NO.1: 12/22/84 UNIT NO. 2: 08/11/89 i

^ ^ ^

30 -

~

1

,g

.d 0 i!!!i!!!!!!!!!!!!!!!!!!!!!!!!!!!lll11!!!!!!!!!!!!!!!!!!!!!!!!!!!!!ll!!lIll!!!illlI!!!!!!!Ill!!!!!!!!!!!!!!!l!!!!!!!!!!!!!!!!!!!!!!I!!!!!lll 159159159159159159159159159159159159 82 l 83 l 84 l 85 l 86 l 87 l 88 l 89 l 90 l 91 l 92 l 93 YEAR

FIGURE C-9 COMPARISON OF POSITIVE MEAN MONTHLY CS-137 ACTIVITY-IN MILK-SAMPLES COLLECTED IN THE VICINITY OF LGS, 1984 - 1993 LGS CRITICALITY

~ " ' ~ ' -

.= . G O AT

,- UNIT NO.1: 12/22/84 -

UNIT NO. 2: 08/11/89 .

M INDICATORS .

21 -

. CONTROLS 18 - - -

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-YEAR-

. x. . , - . ..., .. ,

, - - - , - - -. . , - . - ~ _,. _ _ . _ . - , . _ _ , _ _ --_. _.- _ . _

FIGURE C-10 .1 MEAN MONTHLY AMBIENT GAMMA RADIATION LEVELS (TLD)

-lN THE VICINITY OF LGS, 1982 - 1993 13 12

  • SITE d 33
  • MIDDLE RING E ~

+ OUTER RING 3 10 ~

g h 1

$f .e J

  • '~

5 4 $n n n n n n n n oi n i n n n n n n n i n n n n o n n n i n n n i n n n i n n i n n n i n n n n n n n n n i 15 915 91'5.9 -15 915 915 915 915 915 =915 915 915 9 82 .l-83 l 84 .l 8 5 l 86 l 87 l 88 l 89 l-90 l 91 l 92 l 93..

YEAR

.t i

l

-4 1

DATA TABLES QC LABORATORY

-i i

~i i

APPENDIX D: DATA TABLES AND FIGURES - COMPARIS0N LA JRATORY TABLES Table D-I.1 Concentrations of Gross Beta Insoluble in Surface and Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 1993.

Table 0-I.2 Concentration of Gross Beta Soluble in Surface and Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 1993.

Table D-I.3 Concentrations of Gamma Emitters in Surface and-Drinking Water Samples Collected in the Vicinity of Limerick Generating Station, 1993.

Table D-11.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station, 1993.

Table D-II.2 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Limerick Generating Station, 1993.

Table D-III.1 Concentrations of I-131 by Chemical' Separation and Gamma Emitters in Hilk Samples Collected in the Vicinity of Limerick Generating Station, 1993.

Table D-IV.1 Summary of Collected Dates for Samples Collected in the Vicinity of Limerick Generating Station, 1993.

z FIGURES Figure D-1 Weekly Gross Beta Concentrations in Air Particulate Samples Collected from LGS Locations 11S1 and 1152, 1993.

Figure D-2 Weekly Gross Beta Concentrations in Air Particulate Samples Collected from LGS Locations 14S1 and 14S2, 1993.

D-i

t The following section contains data and figures illustrating the analyses performed by the quality control laboratory. Duplicate samples were obtained from several locations and media'and split between the primary laboratory, Teledyne Brown Engineering (TB) and the quality control laboratory, Public Service Electric & Gas Co. (PSE&G).

Comparison of the results for most media were within expected ranges, though occasional differences were seen:

PSE&G's results of gross beta insoluble and soluble in surface and drinking water samples were generally lower than the results from TB (Figures D-1 through D-4, Appendix D). The differences were probably due to variations in the respective laboratory's analytical procedures.

PSE&G ashes the sample prior to counting whereas, TB does not.

PSE&G's gross beta results for air particulate samples were higher than TB's results, but the trends were similar for both laboratories (Figures D-5 and D-6). PSE&G uses Sr-90 as a calibration source whereas, TB uses Cs-137.

D-1

i e

TABLE 0 1.1 CONCENTRATIONS OF GROSS BETA INSOLUBLE IN SURFACE AND DRINKING WATER SAMPLES COLLECTED IN THE VICINITY JF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF PC1/ LITER s 2 SIGMA COLLECTION 10F2 16C2 PERIOD JA 93 07 *05 h6 *04 l FEB 93 0.3

  • 0.4 0.3 2 0.4 l MAR 93 0.1 s 0.5 -0.4 2 0.5 )

APR 93 0.3 t 0.4 0.2 2 0.4 -1 l

MAY 93 0.0 a 0.4 0.2 2 0.4 JUN 93 0.7 2 0.4 0.0 t 0.4 JUL 93 1.7

  • 0.5 0.2 2 0.4 l AUG 93 0.9 s 0.5 0.2 2 0.4 i SEP 93 0.8 s 0.5 -0.2 a 0.4 l OCT 93 0.3 2 0.4 0.1 2 0.4 NOV 93 -0.1 2 0.4 0.0 s 0.4 I DEC 93 0.5
  • 0.3 0.1 0.2 MEAN 0.5 2 1.1 0.0 t 0.5 l

TABLE D 1.2 CONCENTRATIONS OF GROSS BETA SOLU 8LE IN SURFACE AND ORINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF PCl/ LITER t 2 SIGMA ')

COLLECTION 10F2 16C2 PERIOD JAN 93 3.8 1 0.7 1.4 s 0.5 FEB 93 4.6

  • 0.7 2.3 t 0.6 MAR 93 4.4 2 0.7 1.4 s 0.6 APR 93 2.8 0.6 1.0 s 0.5 MAY 93 5.6  : 0.8 1.9 s 0.6 JUN 93 5.2 t 0.8 2.8 0.6 JUL 93 4.5 t 0.7 3.3 2 0.6 AUG 93 4.4 2 0.7 4.3 2 0.8 SEP 93 5.3
  • 0.8 3.6 2 0.7 DCT 93 7.2 2 0.9 2.6
  • 0.6 NOV 93 5.2 a 0.8 2.3 2 0.6 DEC 93 2.0 s 0.4 1.1 s 0.4 MEAN 4.6 s 2.7 2.3 2 2.1 D-2

i

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TABLE D-I.3 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE AND DRINKING WATER SAMPLES i- COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 f;. RESULTS IK (MITS OF PCI/ LITER a 2 SIGMA i' TM-228 COLLECTION NS-95 CS-134- CS-137 BA-140 LA-140 RA-226

l. STC PERIOD 10F2 JAN 93 < 0.4 < . 0.4 < 0.4 <-2 < 1 <- 2 < 3 FEB 93 < -1.0 < 0.6 < 0.9 < 3' < 1 < .3 < 7

-MAR 93 < 0.7 < 0.8 <~ 0.9 < 4 < 2 < 2 < 4

< 3-APR 93 < 0.5 < 0.6 < 0.8 < 3 < 2 <-3 l  : MAY 93 < 0.7 < 0.6 < 0.9 ' < 3 < 1 < 2 < 8

'JUN 93 < 0.5 .<1 < 0.7 <-3 < 0 < 10 <0

.JUL 93 < 1 < 1 < 1. < '4 < 2 < 3 '< 3

~ AUG 93

- < 2 < 1 < 0.5 < 4 < 1 < 3 < 2 SEP 93 < 0.4 < 0.6 < 0.6 < 1 < 0.6 < 2 < 7 OCT 93 < 1.0 <1 < 1.0 < 5 < 4 to a2 < 9 Nov 93 < 0.5 < 0.7 < 0.6 < 1 < 1 6 2 13 a4

- DEC 93 < 3 < 0.8 < 0.9 < 3 < 1 < 7 < 6 MEAN < 1.0 < 0.7 < 0.8 < 3 < 1.6 4 6 6 *7 16C2 -JAN 93 < 1 < 0.6 < 0.5 < 3 .< 1 < 2 < 9 FEB 93 < 0.8 < 2 -< 0.9 < 2 < 2 15 a2 < 4 MAR 93 < 0.5 <-2 .< 1 < 4 < 2 < 9 < 9

'~

APR 93 < 0.5 < 0.7 < 0.4 < 5 < 4 30 t3 < 5 MAY 93 - < 0.3 < 0.5 < 0.8 < 4 < 2 < 3 < 8

-JUN 93 < 0.5 < 0.5 <- 0.4 < 3- < 10 < 4 < 3 I 'JUL 93 <

O.5 -

< 0.7 < 0.7 ~<3 < 2 < 10 < 2

- AUG 93. < 0.5 < 0.5 < 1 -<2 < 2 11 23 <-8 SEP 93 < 0.9 <' O.8 < 0.8 < 5 < 1.0 < 3 < -. 7 NOV 93 < 0.6- .< 0.5 < 0.4 < 4 < 2 49 3 < 3 DEC 93 < 0.6 <- 0.4 < 0.4 < 3 < 9 22 23 < 4 MEAN < 0.6 < 0.8 < 0.7 < 3- < 3.4 14 t 29 < 6 M

e D ~4 -~

}

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  • W f"' 4.* e' g *PW* d e w +- l#" f 9

1 TA8LE Dall.1 CONCENTRAfl0NS OF GROSS BETA IN AIR PARTICULATE $AMPLES COLLECTED IN THE VICINITT OF LIMERICK GENERAtlWG STATION, 1993 RESULT 3 IN UNITS OF E.3 PCl/CU. METER

  • 2 SIGMA j WEEK 1152 14$2 01 16 a3 19 a3 02 28 a3 25 a3 03 27 3 26 a3 04 23 a3 23 s3 05 23 a3 24 a3 06 25 t3 26 t3 07 22 23 22 a3 08 24 a3 27 a3 09 28 a3 25 a3 10 30 t3 32 a3 11 20 a3 20 a3 12 26 a3 26 s3 13 10 . *2 10 a2 14 7 22 7 s2 15 14 23 14 t3 16 16 *2 16 a2 17 20 *3 22 23 18 19 3 23 *3 19 16 3 18 23 20 19 s3 18 a3 21 14 3 14 a3 22 19 a3 21 23 23 26 s3 28 t3 24 20 s3 18 23 25 19 *3 19 a3 >

26 20 a3 20 a3 27 20 13 22 *3 28 27 23 28 3 3 29 17 t3 18 a3 30 20 a3 20 *3 31 15 a3 17 *3 32 24 s3 27 *3 33 25 3 26 a3 34 22 s3 23 *3.

35 36 t& 38 24 36 24 13 27 23 37 25 *3 22 a3 38 . 18 *3 18 a3 39 23 s3 19 23 40 17 t3 18 s3 41 19 a3 19 23 42 27 a3 25 a3 43 19 s3 18 t3 44 22 23 22 *3 45 23 3 20 t3 j 46 38 s3 39 a3 i 47 20 t3 21 a3 1 48 29 a3 25 a3 49 30 t3 30 s3 50 . 36 a3 34 s3 51 20 a3 22 &3 52 22 e3 25 a3 53 25 a3 25 a3 MEAN 22 s 12 22 s 12 i

D-5 j a

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. 17 0 8 4 5 . 2100 1 1220 1 2

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. 0 2

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TD I AE RT S TC T . 3333 3333 NE L . 9999 9999

////

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N 9877 N CL S N 9877 A 2222 A NO E O . 2222 E //// E OC R I D . //// M C TO . 3692 M 3692 CI . 0001 0001 ER . - - - - - - - -

LE . 9987 9987 2 LP . 2222 2222 O . //// ////

I C 2369 2369 I 1000 1000 D .

E 2 2 L C 5 5 8 T . 1 4 S . 1 1 A

T

TABLE D-III.1 CONCEOTRATIONS OF I-131 BY CMEMICAL SEPARATION AND GAMMA EMIVTEGS IN MILK SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1993 RESULTS IN UNITS OF PC!/ LITER s 2 SICMA COLLECTION 1-131 K-40 CS-134 CS-137 8A-140 LA-140 RA-226 STC PERICD 1981 01/19-01/19/93 < 0.5 13M e 80 < 1 <3 < 4 < 1 < 1 '

04/07-04/07/93 < 0.3 1?40 t 70 < 0.9 < 2 < 5 < 0.7 < 3 07/13-07/13/93 < 0.3 1 00 t 100 < 2 < 2 < 5 < 4 < 5 10/05-10/05/93 < 0.2 1380 e 70 < 0.6 < 1.0 < 4 < 2 17 s5 MEAN < 0.3 137L z 40 < 1.1 < 2.0 < 5 < 1.9 7 14 21st 01/19-01/19/93 < 0.1 1370 a 80 < 0.6 < 2 < 6 < 5 14 24 04/06-04/06/93 < 0.2 1400 a 90 < 3 < 1 < 6 < 5 < 10 07/13*07/13/93 < 0.1 1350 a 90 < 0.6 < 2 < 4 < 4 < 20 10/05-10/05/93 < 0.2 1310 70 < 2 < 3 < 3 < 2 < 9 a MEAN < 0.2 1360 80 < 1.6 < 2 < 5 < 4 14 t 11 22F1 01/19-01/19/93 < 0.4 1390 e 90 < 1 < 3 < 5 < 2 < 5 04/06-04/06/93 < 0.4 1350 e 80 < 1 < 2 < 7 < 4 < 8 07/13-07/13/93 < 0.4 1390 e 80 < 0.7 < 1 < 2 < 1 < 6 10/05-10/05/93 < 0.2 1360 e 70 < 0.6 < 2 < 2 < 3 < 4 MEAN < 0.4 1370 t 40 < 0.8 < 2 < 4 < 3 < 6 ,

e D-7 _

_ - _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ - . __ _ _ _ _ __ ..- __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ - - - = _ _

=

I:

TABLE D IV.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK CENERATING STAfl0N,1993 COLLECTION 10F2 16c2 PERIOD JAN 93 12/29-02/01 12/29-02/01 FEB 93 02/01 03/01 02/01 03/01 MAR 93 03/01 03/31 03/01 03/31 APR 93 03/30-04/27 03/30 04/27 MAY 93 04/27 06/01 04/27 06/01 JUN 93 06/01 06/29 06/01 06/29 JUL 93 06/29 08/02 06/29 08/02 AUG 93 08/02+08/31 08/02 08/31 SEP 93 08/31 09/27 08/31 09/27 OCT 93 D9/27 11/01 09/27 11/01 NOV 93 11/01 11/29 11/01 11/29 DEC 73 11/29 12/27 11/29 12/27 TABLE 0 IV.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE YlCINITY OF LIMERICK GENERATING STATION,1993 1452 WEEK 1152 1452 WEEK 1152 01 12/29 01/04 12/29-01/04 28 07/06-07/12 07/06-07/12 02 01/04 01/11 01/04 01/11 29 07/12-07/19 07/12 07/19 03 01/11-01/18 01/11 01/18 30 07/19 09/26 07/19-07/26 04 01/18-01/25 01/18 01/25 31 07/26 08/02 07/26-08/02 05 01/25 02/01 01/25 02/01 32 08/02-08/09 08/02 08/09 06 02/01 02/08 02/01 02/08 33 08/09 08/16 08/09-08/16 07 02/08 02/15 02/08 02/15 34 08/16-08/24 08/16-08/24 08 02/15 02/22 D2/15 02/22 35 08/24 08/30 08/24 08/30 09 02/22-03/01 02/22 03/01 36 08/30 09/07 08/30 09/07 10 03/01 03/08 03/01 03/08 37 09/07 09/13 09/07 09/13 11 03/08 03/16 03/08 03/16 38 09/13 09/20 09/13 09/20 12 03/16 03/22 03/16-03/22 39 D9/20-09/27 09/20 09/27 13 03/22 03/29 03/22 03/29 40 09/27 10/04 09/27 10/04 14 03/29-04/05 03/29-04/05 41 10/04 10/12 10/04 10/12 15 04/05 04/12 04/05 D4/12 42 10/12 10/18 10/12 10/18 16 04/12 04/20 04/12 04/20 43 10/18 10/25 10/18 10/25 17 D4/20 04/26 04/20 04/26 44 10/25 11/01 10/25 11/01 18 04/26-05/03 04/26 05/03 45 11/01 11/06 11/01 11/08 19 D5/03 05/10 05/03 05/10 46 11/08 11/15 11/08 11/15 20 05/10 05/17 05/10-05/17 47 11/15 11/22 11/15 11/22 21 05/17 05/24 05/17 05/24 48 11/22 11/29 11/22 11/29 22 D5/24 05/31 05/24 05/31 49 11/29 12/06 11/29 12/06 23 05/31-06/08 05/31 06/D8 50 12/06 12/13 12/06 12/13 24 06/08 D6/14 06/08-06/14 51 12/13 12/20 12/13 12/20 25 06/14 06/21 06/14 06/21 52 12/20 12/27 12/20 12/27 26 06/21 06/28 06/21 06/28 53 12/27 01/03 12/27 01/03 ,

27 06/28 07/06 06/28 07/06 D-8

FIGURE D-1

~

4 COMPARISON OF MONTHLY-INSOLUBLE GROSS-BETA CONCENTRATIONS IN

- SURFACE WATER. SAMPLES SPLIT BETWEEN TB AND PSE&G,1993 4

~

+ TB

~

  • PSE&G- ,

< h 2 W

g -

As .

3 ,

0 E

/ \ >

E1 i h.

/

A '

s N /h

\ / s

' 1 0

s _j- m g .'

1 2 '3 4- 5. 6 7 8 9 '10 11 .12 MONTH-

- , _ , . , -,, mea .m .n-- .:--

--<w, ,,.,wwr , n <,4 -nw- ,- v w -e ,

--e-me -,-w * -----------s

FIGURE D-2 _

COMPARISON OF' MONTHLY SOLUBLE' GROSS BETA CONCENTRATIONS IN SURFACE WATER SAMPLES SPLIT BETWEEN TB AND PSE&G,1993-16

+ TB. ,

12

  • PSE&G _

G *

.t C8

' s 0.' ,

s e

I O '

' -A s s 3 b-g 'b--K'

\

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4 s ,

A s A >

l

.0 1 2- 3 4 5 6 7 8 9: 10 11 12 MONTH

i. ,

FIGURE D-3 .

3 COMPARISON-OF MONTHLY ~ lNSOLUBLE. GROSS BETA. CONCENTRATIONS IN DRINKING WATER SAMPLES SPLIT BETWEEN TB AND PSE&G,1993 .

4  ;

~

+ TB -

3

~

  • PSE&G '

i g2 E -

2  :

O O. 1 1

3 -.

O cs

--s

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~

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1 2 -3 4 5 6 7 8 9 10 -11 12 '

MONTH

. , , _ v - - , , - c --

+ .- . .- ,.,ew, -

s - - - _ _ --.mr =--- ___ __- -

FIGURE D-4 COMPARISON OF MONTHLY SOLUBLE GROSS: BETA CONCENTRATIONS IN DRINKING WATER SAMPLES SPLIT BETWEEN TB AND PSE&G,1993 ,

10 9

+ TB 7

_

  • PSE&G

[ 3 e -

x7 1" -

f .m. V y

i43L; j s

j- ~

~

., A; ,- 'A 2 ,- s s ,a s

\

'$ ' ~

~,,s yg 1 u 0

-1 1 2. 3 4 5 6 7 8 9 10 11 12 MONTH.

FIGURE D-5 MEAN WEEKLY GROSS BETA' CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED FROM LGS LOCATIONS 11S1 AND 11S2, .1993 50 , , , , , ,

+ 11S1 - TB

. I 40 - -

O 11 S2 - PSE&G s .

t +* _

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li

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m I 1 9 l I I I i  ! ( l I I I I ! I I I ! I I l I I I I I I I I I Y I O i i i i i i i i i i i i i t. i i _

1 .4. -.7; 10 13'16 -19 22 25 28 31 34 37 40 43 46 -49 52 _

WEEKLNO.

l l

,4 FIGURE D-6 MEAN WEEKLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED FROM LGS- LOCATIONS -14S1 AND 14S2,1993 .

a.

50 .

f

+ 14S1 - TB 4 0 --

  • 14S2 - PSE&G ' ' '

s G . . .

t

. . . 1 G)

~

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o 30 '

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  • 4 >

. 6 . . . '. . & .

I I f I I I I I l I I I l 0' f I $

I i I f f $ f I E $ 1 1 I t 5 f i i i i i i. i i i .i i i i i i i .

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

c- w m er- yy *v4 ~,5- ==-w _ a ,w. e t- -= e '~i. m y -

t- y7.7 y- e

m J 4 -

M m -

A J e.-

t k

i SYNOPSIS OF ANALYTICAL PROCEDURES I

i i

1

)

i; 1

APPENDIX E: SYNOPSIS OF ANALYTICAL PROCEDURES The following section contains a description of the analytical laboratory procedures along with an explanation of the analytical calculation methods i used by Teledyne Brown Engineering and Public Service Electric & Gas to obtain !

the sample activities.

E-1

DETERMINATION OF GROSS BETA ACTIVITY IN WATER SAMPLES (TOTAL SUSPENDED AND DISSOLVED FRACTIONS)

Teledyne Brown Enaineerina This describes the process used to measure the radioactivity of water samples without identifying the radioactive species present. No chemical separation techniques are involved.

For surface and drinking water samples, one liter of the sample is filtered under vacuum through a 0.45 micron Millipore filter. This filter represents the insoluble _ portion of the sample. The filter is dried and mounted on a planchet. The filter which represents the soluble portion of the sample is evaporated on a hot plate, and the residue is transferred and dried on another planchet.

The planchets are counted for 50 minutes in a low-background gas flow proportional counter. Calculation of activity includes a self-absorption correction for counter efficiency based on the weight of residue on each pl anchet.

Calculation of Samole Activity and 2 Siama Error:

l_p 2 S+3 ty Result ,

t s , h ts j (pci/l) (2. 22) ( v) (E) (2.22) (v) (E)

Net Activity Counting Error where:

N - total counts from sample (counts) t, - counting time for sample (min)

B - background rate of counter (cpm) tb = counting time for background (min) 2.22 - dpm/pci v -- volume in liters E - efficiency of the counter 2 - multiple of counting error The MDL is defined as that value equal to the two sigma counting error of the result. Less than MDL is reported as the result when this value is greater than the measured result' defined above.

E-2

DETERMINATION OF GROSS BETA ACTIVITY IN WATER SAMPLES (TOTAL SUSPENDED AND DISSOLVED FRACTIONS)

Public Service Electric & Gas This describes the process used to measure the overall radioactivity of water samples without identifying the radioactive species present. No chemical separation techniques are involved.

The sample is mixed thoroughly. Then, a 1.0 liter portion is removed from the surface or drinking water container and filtered through a slow, hardened ashless filter paper mounted in a Buchner funnel. The filter paper is removed from the Buchner funnel, folded into a triangle, placed in a covered porcelain crucible and heated over a Bunsen burner until completely charred. The crucible is then ashed for at least 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> in a muffle furnace at 500 C.

The cooled ash is then transferred to a tared stainless steel ribbed planchet using a rubber policeman with laboratory aerosol and reagent water.

The filtrate portion of the sample is evaporated on a hot plate until the volume approaches 20 to 25 ml. At that point, the filtrate is transferred to e tared stainless steel ribbed planchet. Both planchets are evaporated to dryness under an infrared heat lamp. They are subsequently cooled in a desiccator, weighed and counted using a low background gas proportional counter.

Calculation of Samole Activity and 1.96 Siama Error:

C, Cd 1.96 b+b Result = 10 0 * *

(pC.f /l) 2. 22 (v) (E) 2. 22 ( v) (E) l Net Activity Counting Error where:

C, - total gross sample counts (counts)

T, - sample count time (min)

C3 - total background count (counts) 13 - background count time (min)

E - counting efficiency based on Sr-90 for the weight of I planchetted sample v - aliquot size in liters 2.22 - dpm per pCi 1.96 - multiple of counting error The MDL is defined as that value equal to the 1.96 sigma counting error of the result. Less than MDL is reported as the result when this value is greater than the net activity.

E-3 I

I

DETERMINATION OF TRITIUM IN WATER BY ELECTROLYTIC ENRICHMENT AND LIQUID SCINTILLATION COUNTING Teledyne Brown Enaineerina A 60 ml aliquot is distilled and collected in an Erlenmeyer flask.

Approximately 55 g of the distillate is transferred.into an electrolytic enrichment cell. One ml of 30% sodium hydroxide solution is added to the cell. The sample is electrolyzed in a 10 C cooling water bath until the volume is 3-4 ml. CO 2 is bubbled through the solution to neutralize the sodium hydroxide. The sample is transferred to a collecting bottle at 80 C and weighed. It is then transferred into a liquid scintillation vial and 20 ml of cocktail is added. The sample is counted for 100 minutes in a liquid scintillation counter.

Determination of the Enrichment Factor:

Enrichment Factor =

( n 1 v lume) (obsened @m/ml)

(in2 tial volume) (standard dpm/ml)

Aliquots of a tritium standard solution have been. enriched to different final volumes to provide a graph of the enrichment factor versus the final volume.

Calculation of Samole Activity and 2 Siama Error:

.,E. _p 2 5+1 ty 3

Resul t_ ,

Cs h ts (pCi/l) 2. 22 (v) (EF) (E) 2. 22 (v) (EF) (E)

Net Activity Counting Error l where:

N - total counts from sample (counts) t, - counting time for sample (min)

B - background rate of counter (cpm) t b

- counting time for background (min) 2.22 - dpm/pCi v -

initial volume (in liters) before enrichment EF - enrichment factor .039 x VF + .603 where VF - Final Volume efficiency of the counter tritium E -

L

2 multiples of counting error l

The MDL is defined as that value equal to the two sigma counting error of the t

result. Less than MDL is reported as the result when this value is greater than the net activity.

E-4 l

l L

1 DETERMINATION OF TRITIUM IN WATER BY LIQUID SCINTILLATION COUNTING Teledyne Brown Enaineerina Ten (10) milliliters of sample is directly pipetted into a 25 mi vial and mixed with liquid scintillation material and counted for a minimum of 100 '

minutes to determine its activity. The tritium activity is determined by measuring the count rate in the beta activity energy spectrum from 0 to 18 kev. Eighteen to 100 kev represents the carbon-14 energy region. If there is no count rate above background in the carbon-14 energy region, the sample has no contamination and the tritium activity may be calculated directly. If the net count rate in the carbon-14 energy channel is 10% of the tritium count rate or higher, the sample contains contamination that may affect the count rate in the tritium channel, and the sample must be purified by distillation before recounting.

Calculation of Samole Activity and 2 Siama Error:

_!!_ _ p 2 E + E-Result ,

Cs  % t,' tb (pcl/l) 2.22 (v) (E) , 2. 22 ( v) (E)

Net Activity Counting Error where:

N - total counts from sample (counts) t, - counting time for sample (min)

B = background rate of counter (cpm) t3 - counting time for background (min) 2.22 - dpm/pci v = sample volume (in liters)

E - efficiency of the counter tritium 2 - multiples of counting error The MDL is defined as that value equal to the two sigma counting error of the result. Less than MDL is reported as the result when this value is greater than the net activity.

E-5

DETERMINATION OF GROSS BETA ACTIVITY IN AIR PARTICULATE SAMPLES Teledyne Brown Enoineerina .

This describes the process used to measure the overall beta activity of air particulate filters without identifying the radioactive species present. No chemical separation techniques are involved. Each air particulate filter is placed directly on a 2-inch stainless steel planchet. The planchets are then counted for beta activity in a low-background gas flow proportional counter.

Calculation of activity includes an empirical self-absorption correction curve which allows for the change in effective counting efficiency caused by the residue mass. Self-absorption-is not considered in the case of air particulate filters because of the impracticality of accurately weighing the deposit and because the penetration depth of the deposit into the filter is unknown.

Calculation of Sample Activity and 2 Siama Error:

( .f_ ) _ p 2 (

t,

) +(1) ts Result Ca  %

(pci/m 3) 2. 22 (v) (E) ( . 02832) 2.22 (v) (E) ( . 02832)

Net Activity Counting Error where:

N - total counts from sample (counts) t - counting time.for sample (min) 8, = background rate of counter (cpm) tb - counting time for background (min) 2.22 - dpm/pCi v - volume of sample analyzed in cubic feet calculated from the elapsed time meter E - efficiency of the counter 2 - multiple of counting error

.02832 - conversion to cubic meters The MDL is defined as that value equal to the two sigma counting error of the result. Less than MDL is reported as the result when this value is greater than the net activity.

E-6

OETERMINATION OF GROSS BETA ACTIVITY IN AIR PARTICULATE SAMPLES Public Service Electric & Gas After allowing at least a three-day (extending from the sample stop date to the sample count time) period for the short-lived radionuclides to decay out, each air particulate filter paper is placed in a 2-inch diameter stainless steel planchet and counted using a gas proportional counter.

Calculation of Samole Activity and 1.90 Siama Error:

C, Cb 1.96 b+b Result ,

T, Ts

, ) Tl Tl (pCi/m ) 3

2. 22 ( v) (E) ( . 0283 2 ) 2. 22 (v) (E) ( . 02832)

Net Activity Counting Error where:

C, - total gross sample counts (counts)

T - sample count time (min)

C, 3

- total background count (counts)

Tb - background count time (min)

E = counting efficiency based on Sr-90 v - sample volume in cubic feet calculated from the elapsed time l meter readings and the flow rate 1

.02832 - conversion to cubic meters 2.22 - dpm/pCi 1.96 - multiple of the counting error The MDL is defined as that value equal to the 1.96 sigma counting error of the result. Less than MDL is reported as the result when this value is greater i than the net activity.

1 1

i E-7

DETERMINATION OF I-131 IN MILK AND WATER SAMPLES Teledyne Brown Enainenrina Two liters of sample are first equilibrated with stable iodide carrier. A batch treatment with anion exchange resin is used to remove iodide from the sample. The iodine is then stripped from the resin with sodium hypochlorite, reduced with hydroxylamine hydrochloride, and extracted into carbon tetrachloride as free iodine. It is then back-extracted as iodide into sodium bisulfite solution and is precipitated as palladium iodide. The precipitate is weighed for chemical yield and is mounted on a nylon planchet for low level beta counting. The chemical yield is corrected by measuring the stable iodide content of the milk or water with a specific ion electrode.

Calculation of the Sample Activity and 2 Siama Error:

2-p 2 S+1 t, ty Result t, (PCi/l) (2. 22) (v) (E) (y) (exp'AAC) (2. 22) (v) (E) (y) (exp-lae)

Net Activity Counting Error where:

N - total counts from sample (counts) t - counting time for sample (min)

B, - background rate of counter (cpm) t - counting time for background (min) -

2I22 - dpm/pCi v = volume of sample analyzed (liters) y - chemical yield of the amount of sample counted 1 - is the radioactive decay constant-for I-131 (0.693/8.05) at - is the elapsed time between sample collection (or end of the sample collection) to the midcount time 2 - multiple of the counting error E - efficiency of the counter for I-131, corrected for self absorption effects by the formula:

g,g ( exp-o- 51")

s(exp ' "' )

where:

E, - efficiency of the counter determined from an I-131 standard mount M = mass of PdI2on the sample mount (mg)

M, - mass of Pdl, _on the standard mount (mg)

The MDL is defined as that value equal to the two sigma counting error of the result. Less than MDL is reported as the result when this value is greater than the net activity.

E-8

DETERMINATION OF I-131 IN MILK AND WATER SAMPLES Public Service Electric & Gas Stable iodine carrier is equilibrated in a 4-liter volume of raw milk before two separate 50 ml batches of anion exchange resin are introduced to extract iodine. After each batch has been stirred in the milk for an appropriate time, both are then transferred to an aluminum sample can where the resins are rinsed with demineralized water several times and any leftover rinse water removed with an aspirator stick. The can is hermetically sealed and then counted on a gamma detector.

Calculation of the Samole Activity and 1.96 Siama Error:

(CT,s b 1.96 + (1.05)

Result ,

Ts ) (1.05) ,

) T, Ts (pCl/l) (2.22) (v) (E) (y) (exp4 A C) (2. 22 ) (v) (E) (y) (exp4' C)

Net Activity Counting Error where:

C - total gross sample counts (counts)

T ,, - sample count time (min)

Cb - total background count time (counts)

T3 - background count time (min)

E = counting efficiency fer I-131 v - aliquot analyzed (liters) y - iodine yield 1 - is the radioactive decay constant for I-131 (0.693/8.05) at - is the elapsed time between sample collection (or end of the sample collection) to the midcount time 1.05 - Correction factor for protein-bound iodine 2.22 - dpm/pCi 1.96 - multiple of counting error The MDL is defined as that value equal to the 1.96 sigma counting error of the result. Less than MDL is reported as the result when this value is greater than the net activity.

J E-9

DETERMINATION OF GAMMA EMITTING RADI0IS0 TOPES Teledyne Brown Encineerina Gamma emitting radioisotopes are determined with the use of a lithium drifted germanium (GeLi) and high purity germanium detectors with high resolution spectrometry in specific media; such as, air particulate filters, charcoal filters, milk and water. Each sample to be assayed is prepared and counted in standard geometries such as one liter wrap-around Marinelli containers, 300 ml or 150 ml bottles, or 2-inch filter paper source geometries.

Samples are counted on large (>55 cc volume) GeLi detectors connected to Nuclear Data 6620 data acquisition and computation systems. All resultant spectra are stored on magnetic tape.

The analysis of each sample consists of calculating the specific activities of all detected radionuclides or the detection limits from a standard list of nuclides. The GeLi systems are calibrated for each standard geometry using certified radionuclide standards traceable to the National Bureau of Standards.

Gamma Spectroscopy Statistically Sianificant Activity and 2 Siama' Error Calculation for the ND6620 and ND6700 Systems:

Activity ,

AREA

  • DECAY pCi LIVETIME(Bec . )
  • ABN* EFF* 0. 037 * ( wgt. or vol . )

z wgt. or vol . y .

Statistically Significant Activity 4

  • KGND + AREA , pgg3 y3 gy 1 200
  • AREA 2 Sigma Counting Error where:

AREA - Net Peak Area (from Nuclide Line' Activity Report)

BKGND - Compton Background (from Nuclide Line Activity Report)

DECAY - Decay Correction Factor (from Minimum Detectable Activity Report) (Nuclide Half Life - Collection time to Mid Count time)

LIVE TIME - Elapsed Live Time ( from Header Information)

ABN - Nuclide Abundance (from Nuclide Line Activity Report)

E - 10

Y EFF - Detectoc Efficiency (from Nuclide Line Activity Report) 0.037 - Conversion Factor (dps to picocuries) wgt. or - Sample weight or volume (from Header Information) vol.

Gamma Spectroscopy Statistically Non Sionificant Activity and 2 Siama Error

! Calculation for the ND6620 and ND6700 Systems:

NetActivi ty ,

NET

  • DECAY pCi LIVETIME(Soc . ) * (EFF* B. I. )
  • 0. 037 * ( vgt. or vol . )

g wgt. or vol.y Statistically Non Significant Activity 4

  • BKGND + NET , ygg pgg3,3(y 1 200
  • NET 2 Sigma Counting Error where:

NET - Net Peak Area (from Minimum Detectable Activity Report)

BKGND - Compton Background (from Nuclide Line Activity Report)

DECAY - Decay Correction Factor (from Minimum Detectable Activity Report) (Nuclide Half Life - Collection time to Mid Count time)

LIVE TIME - Elapsed Live Time ( from Header Information) )

(EFF*B.I) - Efficiency

  • Abundance (from Minimum Detectable Activity Report) 0.037 - Conversion Factor (dps to picocuries) wgt. or - Sample weight or volume (from Header Information) vol.

i E - 11 i

l-Samma Spectroscopy Minimum Detectable Activity Calculation for the ND6620 and N06700 Systems:

MDA , 2. 83 /EKTR

  • DECAY pCi LIVETINE(sec . ) * (EFF* B. I. )
  • 0. 037 * ( wgt. or vol . )

( vgt. or vol y where:

BKGN - Total Peak Background Area (from Minimum Detectable Activity Report)

DECAY - Decay Correction Factor (from Minimum Detectable Activity _

Report) (Nuclide Half Life - Collection time to Mid Count time)

LIVE TIME - Elapsed Live Time ( from Header Information)

(EFF*B.I) - Efficiency

  • Abundance (from Minimum Detectable Activity Report) 0.037 - Conversion Factor (dps to picocuries) wgt. or - Sample weight or volume (from Header Information) vol.

E - 12

DETERMINATION OF GAMMA EMITTING RADI0 ISOTOPES Public Service Electric & Gas The procedure for detection of gamma emitting radioisotopes generates high resolution gamma spectra which are used for quantitative determination and identification. Standard geometries have been established to maximize efficiency, for sample types: air particulate filters, water, and milk.

A description of the analytical methods, beginning with air particulates used for each sample type is presented, followed by the general formula used for calculation of the sample activities.

Air particulate: At the end of each calendar quarter,13 weekly air filters from a given location are stacked in a two inch diameter Petri dish in chronological order, with the oldest filter at the bottom, nearest the detector, and the newest one on top. The Petri dish is closed and the sample counted.

Water and Milk: A well-mixed 3.5-liter sample is poured into a calibrated Marinelli beaker. The samples are brought to ambient temperature and counted.

Calculation ;f the Samole Activity and 1.96 Siama Error:

Result ,

N y3 - B y, PCi (2.22) (v) ( t) (Eg3 ) (big > ) (exp *(1)

( vol - mass )

Net Activity

, 1.96/NU) +B U)

(2.22) (v) ( c) (EU)) (BIU) ) (exp *'f>'*)

Counting Error where:

Ng - area, in counts, of a special region containing a gamma emission of the nuclide of interest NOTE: If the detector exhibits a peak in this region when counting a blank (i.e., from natural background (B)(t) is subtracted from N before using the above equation. B is the count rate of the blank, cpm, in the background peak.

E - 13

)

i

i 1

B g3 - background counts in the region of interest, calculated by

-fitting a straight line across the region connecting the two adjacent region.

1.96 = multiple of counting error 2.22 = dpm/pci v = volume or mass of sample analyzed t - counting interval of sample, minutes E = efficiency of counter at the energy region of interest BE3g3

- branching intensity of the nuclide at the gamma emission energy under consideration (no, of photons per disintegration)

A g3

- is the radioactive decay constant for nuclideg3 (0.693/nuclide half life)

At = is the elapsed time between sample collection-(or end of the sample collection) to the midcount time The MOL is defined as that value equal to the two sigma counting error of the resul t. Less than MDL is reported as the result when this value is greater than the measured result defined above.

I E - 14 1

l ENVIRONMENTAL DOSIMETRY Teledyne Brown Enaineerina Teledyne Brown Engineering dosimeters are rectangular teflon wafers impregnated with 25% CaSO4:Dy phosphor. They are annealed in a hot air oven prior to use and are inserted into black polyethylene pouches. The filled pouches are labelled and placed in rectangular holders which contain copper shielding to filter out low energy radiation. After exposure in the environment, four separate areas of the dosimeter are read in a Teledyne Brown Engineering model 8300 TLD reader. The dosimeter is then re-irradiated by a standardized Cs-137 source and the four areas are read again. Calculation of the environmental exposure is performed by computer, using the re-irradiation readings to determine the sensitivity of each area of the dosimeter. The reading of control dosimeters are subtracted to allow for transit dose and system background.

A. For any given area of the dosimeter, the dose mR is calculated by the formula:

Dose = (R)( ') (avcon trol) where:

R - initial reading of the area RR - second reading of the area (after re-irradiation) redose - re-irradiation dose in mR avcontrol - average of control values calculated as explained below. If no controls are used, avcontrol - 0 and gross exposures result B. Each area of each control is calculated by the formula:

cdoce = (cr) ( credose y crr where:

cdose - control area dose in mR cr - initial reading of the control area crr - second reading of the control area (after re-irradiation) credose - re-irradiation dose of the control dosimeter in mR E - 15

i The average of control values is then calculated from all four areas of all controls by the formula:

4#

))cdose avcontrol =

4, where:

N = total number of control dosimeters C. The average and standard deviation of the area readings for each dosimeter are calculated by standard methods.

D. Using the criteria that -if one standard deviation is greater than 10% of the average of the four readings and that if the value of one area is outside the range of 3 standard deviations of the average of the other three areas, then that area will be eliminated and the results will be based on the remaining areas.

l l

l E - 16

i I f QUALITY CONTROL EPA INTER-LABORATORY COMPARISDN PROGRAM 1

J l

APPENDIX F: QUALITY CONTROL PROGRAM Teledyne Brown Engineering (TB) and Public Service Electric & Gas (PSE&G) participate in the EPA Radiological Inter-laboratory Comparison (cross check)

Program. This participation includes a number of analyses on various sample media as found in the Limerick Generating Station REMP. As a result of this participation, an objective measurement of analytical precision and accuracy as well as, a bias estimation of the results are obtained.

Examination of the data shows that the vast majority were within the EPA control limits. Each case of exceeding the control limits was investigated.

There was no evidence to suggest systematic errors.

The results of TB's and PSE&G's participation in the EPA cross check program can be found in Tables F-1 and F-2, respectively.

As part of another intercomparison program, Thermoluminescent dosimeters (TLDs) from the NRC, Pennsylvania Department of Environmental Resources and PECO are placed at various distances around the Limerick Generating Station.

The data were summarized into three categories: 0-2 miles, 2-5 miles and greater than 5 miles from the Limerick Generating Station (Figures F-1 through F-3, Appendix F). The data overlap each other, indicating that each TLD system accurately represents the ambient gamma radiation levels in the environs around the Limerick Generating Station.

l F-1 l

l

TABLE F-1 USEPA INTER-LABORATORY COMPARISONS - 1993 TELEDYNE BROWN Cotlection Secpamce Teledyne Normatized Deviation ALL Participants Media nuclide EPA Results(a) Broom Results(b) Grand Avg. Krun n Mean 1 2 s.d.

Date llo.

15.0 e 8.66 12.67 2 3.45 -0.64 -0.81 14.53 2 6.24 01/15/93 619 Water Sr-89 Sr-90 10.0 t 8.66 8.33 a 3.45 -0.46 -0.58 9.66 2 4.40 34.0 m 15.59 17.33 2 3.45 0.05 -3.21 17.09 t 15.08 (c) 01/29/93 616 Water Gr-At$a 3.47 2.77 41.99 2 14.82 (d)

Gr-Beta 44.0 t 8.66 52.00 2 3.00 100.0 2 17.32 106.67 2 17.31 0.92 1.15 101.36 e 16.40 02/05/93 618 Water 1-131 623 Water M-3 9844.0 2 1704.33 9366.67 2 458.25 -0.40 -0.84 9591.82 2 1378.20 06/04/93 Gr-Beta 46.77 150.0 t 0.00 -0.35 -1.73 155.52 a 36.82 04/20/93 624 Wate- 177.0 t Sr-89 41.0 2 8.66 35.33 2 4.59 -0.78 -1.96 37.59 2 16.64 Sr-90 29.0 a 8.66 27.33 a 1.74 -0.17 -0.58 27.82 2 3.45 Co-60 39.0 a 8.66 40.67 2 10.53 0.45 0.58 39.36 2 5.80 Cs-134 27.0 2 8.66 23.67 2 4.59 -0.60 -1.15 25.40 t 4.28 Cs-137 32.0 2 8.66 34.33 2 6.24 0.60 0.81 32.60 2 5.62 Gr-Alpha 41.57 94.33 2 3.45 -0.17 -0.05  %.63 e 40.34 -

95.0 . t co-60 15.0 a 8.66 16.33 2 4.59 0.50 0.46 14.90 t 4.16 l 06/11/93 622 Water 2n-64 103.0 2 17.32 121.33 60.27 2.39 3.18 107.54 e 15.66 (e) l Ru-106 119.0 2 20.78 106.33 2 47.67 . 0.36 -1.83 103.87 25.66 Cs-134 5.0 8.66 5.67 a 1.74 0.10 0.23 5.39 2 3.14 Cs-137 5.0 t 8.66 6.67 m 1.74 0.31 0.58 5.76 a 2.94 Ba-133 99.0 2 17.32 104.33 2 27.87 1.31 0.92  %.74 t. 13.74 8.66 31.67 s 7.56 -0.88 -0.81 34.20 e 13.32 07/16/93 626 Water Sr-89 34.0 t 8.66 24.00 t 0.00 -0.01 -0.35 24.02 2 6.30 Sr-90 25.0 t Gr-Alpha 15.0 e 8.66 18.67 '6.24 2.29 1.27 12.06 2 8.56 07/23/93 625 Water Gr-Beta 43.0 2 11.95 42.67 7.56 1.25 -0.08 37.65 16.95 Gr-Alpha 19.0 t 8.66 17.00 2- 0.00 -1.04 -0.69 20.00 t 6.54 l 08/27/93 628 Air Filter 9.24 Gr-Beta 47.0 2 8.66 49.0G t- 5.19 -0.11 0.69 49.32 2

i. 17.67 2 1.74 -0.17 -0.46 18.17 ' 6.32 k Sr-90 19.0 2 8.66 Cs-137 9.0 t B.66 9.67 t 1.74 -0.12 0.23 -10.00 t 3.34 s

631 Mitt -Sr-89 30.0 t 8.66 35.67 e 10.53 4.03 1.96 24.03 2 15.04 09/24/93 24.00 2 5.19 1.40 -0.35~ 19.97 t 10.46 Sr-90 25.00 t 8.66 1-131 120.0 t 20.78 126.67 e 17.31 0.95 0.96 120.12 16.74 49.0 t 8.66 50.67 2 . 3.45 0.22 0.58 50.02 2 6.00 Cs-137 '

K 1679.0 2 145.49 1620.00 t 57.% -1.11 -1.22 1674.07 2 190.44 F-2

____.______m

TABLE F-1 USEPA INTER-LABORATORY COMPARISONS - 1993 TELEDYNE BROWN Collection serpence Tetedyne Norsmalized Deviation Att Participants Grand Avg. Known pseen i 2 s.d.

Date llo. Media Nuclide EPA Results(a) Brown Results(b)

Water 1-131 117.0 2 20.78 103.33 2 17.31 -2.07 -1.97 117.68 21.24 10/08/93 629 632 Gr-Alpha 20.0 t 8.66 20.33 2 6.24 2.17 0.12 14.08 2 9.28 10/29/93 Water 0.23 9.60 Gr-Beta 15.0 e 8.66 15.67 m 6.24 -0.46 17.01 2 633 Water H-3 7398.0 2 1281.72 6900.00 t 300.00 -0.74 -1.17 7215.65 2 1149.36 11/05/93 Water Co-60 30.0 t 8.66 28.67

  • 8.67 -0.36 -0.40 29.72 2 4.66 11/12/93 634 Zn-65 150.0 2 25.93 152.00 t 27.51 -0.47 0.23 156.07 a 18.48 Ru-106 201.0 2 34.64 177.33 2 16.53 0.19 -2.05 175.18 2 36.64 (f)

Cs-134 59.0 t 8.66 53.33 a 14.79 -0.38 - 1.% 54.42 1 9.06 Cs-137 40.0 t 8.66 41.33 m 9.18 -0.28 0.46 42.14 2 6.08 Ba-133 79.0 e 13.86 69.33 1 9.18 -1.54 -2.09 76.45 2 12.62 (f)

Water Gr. Eeta 58.0 2 17.32 51.33 2 9.63 -0.36 -1.15 53.40 2 12.86 10/19/93 635 sr-89 15.0 2 8.66 15.00 a 3.00 0.36 0.00 13.% 2 6.06 Sr-90 10.0 t 8.66 10.00 2 0.00 -0.09 0.00 10.26 2 4.04 Co-60 10.0 1 8.66 12.00 s 3.00 0.55 0.69 10.41 2 3.26 Cs-134 12.0 2 8.66 9.00 t 3.00 -0.27 -1.04 9.78 a 3.72 Cs-137 10.0 t 8.66 12.67 m 7.56 0.60 0.92 10.93 2 3.44 Gr-Alpha 40.0 2 17.32 39.67 t 1.74 -0.19 -0.06 40.77 a 16.54 (a) EPA Results - Expected laboratory preceiston (3 sigma). Units are pCi/t for water and milk except K is in eg/t.

(b) Teledyne Results - Average t 3 sigma. Units are pCl/t for water and milk except K is in eg/L. Units are total pCI for air particulate fitters.

(c) The EPA switched from Am-241 to Th-230 stpha spike. We calibrated with Th-230, using sodiun nitrate to generate a self-absorptico curve. The EPA water, however, has minerals wheth have greater self-absorption than the sodium nitrate matrix. Ehe EPA has agreed to send us a gatton of their water which we can use to prepare a self-absorption curve with Th-230.

(d) By oversight, we did not use the spectat self-absorption curve which we had previously derived using EPA water and Cs-137 standard. We will use the EPA curve in the future. We may also re-derive this curve using a water ser:ple which the the EPA has agreed to send us.

(s) The calculations were checked and fomd to be correct. The results of six genr.is emitting isotopes were reported to the EPA. The results of four were within 1 normalized deviation: a fifth, within 2 normatized deviations. Only the Zn-65 average was outside the cantrol timits. There is no etnious reason whey one isotope should be outside the control timits, white five cther Isotopes were within the control timits.

(f) An Irwestigation is being conducted.

F-3

TABLE F-2 USEPA ENVIRONMENTAL RADI0 ACTIVITY LABORATORY INTERCOMPARIS0N STUDY PROGRAM PSE&G Gross Alpha and Gross Beta Analysis of Water (pCi/L) and Air Particulate (pCi/ filter)

PSE&G EPA DATE MM-YY ENV SAMPLE CODE MEDIUM ANALYSIS Mean i s.d. Known 01-93 EPA-WAT-AB359 Water Alpha 1513 3419 Beta 3910.5 4415 04-93 EPA-WAT-P361 Water Alpha 11015 95124 Beta 16812.4 177127 07-93 EPA-WAT-AB365 Water Alpha 1610.5 1515 Beta 4012.6 4316.9 08-93 EPA-APT-GABS 366 APT Alpha 2210 1915 Beta 4810.5 4715 10-93 EPA-WAT-P369 Water Alpha 5511.2 40110 {

Beta 5711.2 58110 l 10-93 EPA-WAT-AB372 Water Alpha 1812.4 2015 Beta 2011.2 1515 I

The results for the January 93 gross alpha in water were not within the EPA limit  !

values of 34 i 17.3 (two sigma). an examination of the analyses and counting j parameters showed no apparent discrepancies in how the results were developed. A .

review of the performance of other participants in the cross check program indicated !

that 65'/. of the responding laboratories developed results outside the EPA control limits with a grand average value of 17.1 pC1/1. In conversations with the EPA it wa(

determined that the Agency recently switched over to using Th-230 as the gross alpha reference standard. Previously the EPA and PSE&G used Am-241. The difference in L detector response to Am-241 and Th-230 is approximately a factor of two for our instruments. If Th-230 was used as the gross reference standard the calculated .

i response would have been doubled. A Th-230 standard was obtained from EPA in order G develop a new self-absorption curve and to recalibrate the detectors. Subsequent results have been in agreement.

l

  • s.d. - one standard deviation of three individual analytical results
    • known value plus or minus one sigma as reported by EPA F-4

+

TABLE F-2 USEPA ENVIRONMENTAL RADI0 ACTIVITY LABORATORY INTERCOMPARISON STUDY PROGRAM PSE&G Gamma Analysis of Milk, Water (pCi/L) and .

Air Particulate (pCi/ filter)

DATE PSE&G EPA MM-YY ENV SAMPLE CODE MEDIUM ANALYSIS Mean i s.d. Known 06-93 EPA-WAT-G363 Water Ba-133 9412.1 99110 Co-60 1510.5 1515 Zn-65 10312.9 103110 Ru-106 10013.7 119112 Cs-134 711.6 515 Cs-137 710.9 515 04-93 EPA-WAT-P361 Water Cs-134 2711.2 2715 Cs-137 3111.2 3215 Co-60 4111.6 3915 08-93 EPA-APT-GABS 366 APT Cs-137 1110.5 915 09-93 EPA-MLK-GS367 Milk Cs-137 4811.2 4915 K(1) 1640116 1680184 I-131 11711.4 120112 10-93 EPA-WAT-P369 Water Co-60 1110.5 10i5 Cs-134 1010 1215 Cs-137 1110 1015 11-93 EPA-WAT-G371 Water Co-60 3110.9 3015 Zn-65 15512.6 150115 Ru-106 20019.5 201120 Cs-134 5710.9 5915 Cs-137 4210.5 4015 Ba-133 7611.7 7918 (1) Reported as mg/l of Potassium

  • s.d. - one standard deviation of three individual analytical results
    • known value plus or minus one sigma as reported by EPA F-5

TABLE F-2 USEPA ENVIRONMENTAL RADI0 ACTIVITY LABORATORY INTERCOMPARISON STUDY PROGRAM PSE&G Tritium Analysis of Water (pCi/L)

DATE PSE&G EPA MM-YY ENV SAMPLE CODE MEDIUM ANALYSIS Mean i s.d. Known 06-9's EPA-WAT-H362 Water H-3 92601258 98401980 11-93 EPA-WAT-H370 Water H-3 7030133 74001740 l

I o s.d. - one standard deviation of three individual analytical results 00 known value plus or minus one sigma as reported by EPA F-6 l

1

m t

TABLE F-2 USEPA ENVIRONMENTAL RADI0 ACTIVITY LABORATORY INTERCOMPARIS0N STUDY PROGRAM PSE&G Iodine Analysis of Water (pCi/L)

-DATE PSE&G EPA MM-YY ENV SAMPLE CODE MEDIUM ANALYSIS Mean i s.d. Known 02-93 EPA-WAT-1360 Water 1-131 12513.3 100110 10-93 EPA-WAT-1368 Water I-131 10611.9 117112-l l

l The results for the February 1993 1-131 in water did not agree with the EPA known. An evaluation of the completed analyses showed no obvious errors by the analyst. A review of the calibration process revealed a gap by a plastic spacer between the source and the detector, sufficient to allow a difference in the. solid angle, which altered the results by a factor of 25%. The corrective action taken was to post signs both inside and outside the detector caves, requiring spacers to be inserted at the i time of analysis. Future calibrations reverted to counting the sample directly'on top of the detector without a spacer. Subsequent results have been in agreement.

  • s.d. - one standard deviation of three individual analytical results
    • known value plus or minus one sigma as reported by EPA F-7

h TABLE F-2 USEPA ENVIRONMENTAL RADI0 ACTIVITY LABORATORY INTERCOMPARISON STUDY PROGRAM PSE&G Strontium-89 and Strontium-90 Analysis of Air Particulates (pCi/ filter),

Milk (pCi/L) and Water (pC1/L)

DATE PSE&G EPA MM-YY ENV SAMPLE CODE MEDIUM ANALYSIS Mean i s.d. Known 01-93 EPA-WAT-S358 Water Sr-89 1610.4 1515 Sr-90 910.2 '1015 04-93 EPA-WAT-P361 Water Sr-89 4415.1 4115 Sr-90 2811.4 2915 07-93 EPA-WAT-S364 Water Sr-89 3512.5 3415-Sr-90 2510.8 2515 08-93 EPA-APT-GABS 366 APT Sr-90 1810.9 1915 09-93 EPA-MLK-GS367 Milk Sr-89 2710.9 3015 Sr-90 2410.5 2515 10-93 EPA-WAT-P369 Water Sr-89 1310 1515 Sr-90 1010.5 1015

  • s.d. - one standard deviation of three individual analytical results
    • known value plus or minus one sigma as reported by EPA F-8

. COMPARISON OF PECo, NRC AND DER TLD DATA AT DISTANCES-OF 0 - 2 ' MILES FROM LIMERICK-GENERATING STATION, 1988 - 1992 34  ;

_. U +/- 1 sd PECo (t)  ! + Average PECo 30 -F- -- - - -- - - - -

0 +/- i sd nRC

  • Amage NRC 28 -b - -- - - -- -- - -

$ 26. -- - --- - - -

U +/ - 1 sd DER d  : + Average DER 524-

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1 2 3 4 1 2 3.4 1 2 3 4 1 2 3 4 1 2 34 l 88 l 89 l 90 l 91 92 QUARTER / YEAR

_ _ _ _ - - - - - _ -- - _. 1 .- - .-

FIGURE F-2 COMPARISON OF PECo, NRC AND DER TLD DATA AT DISTANCES OF 2 - 5 MILES FROM LIMERICK GENERATING STATION, 1988 1992 ,

i 34

_ 0 +/ - 1 sd PECo-nen 32 ---

-c Average PECo

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1 2 3 4 1 2 34 1 2 34 1 2 3 4 1 2 3 4 l 88 89 90 l 91 92

, QUARTER / YEAR -

FIGl. IRE F-3 ~

COMPARISON OF PECo, NRC AND DER TLD DATA AT DISTANCES OF > 5 MILES FROM LIMERICK GENERATING STATION, 1988 - 1992' 34

~

C +/ - 1 ad PECo 9 32

e.,y ,,,,pec,
  1. 30  :- ---- ------ - -- -- ---- - -- --- --

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'l I

1 e

LGS SURVEY  :

I i

n J

  • t e

t 1

9 1

APPENDIX G: LGS SURVEYS A Land Use-Census around the Limerick Generating Station'(LGS) was conducted by RMC Environmental Services for PECO Energy to comply with sections 2.5.1 and 3.4.2 of the Plant's Offsite Dose Calculation Manual. The survey was conducted during the May to September 1993 growing season. The results of this survey are summarized.in Table G-1.

There were no changes required to the LGS REMP as a result of this survey.

[

G-1

Table G-1 Location of Hearest Residence, Garden and Milk Farm within a Five Mile Radius of Limerick Generating Station, 1993 (Distance in Miles)

Sector Residence Garden (" Milk Farm N 0.6 1.8 4.7 NNE 0.5 0.5 -

NE 0.8 1.5 -

ENE 0.6 0.9 -

E 0.6 1.1 -

ESE 0.5 0.6 1.1(2)

SE 1.0 1.5 4.6 SSE 1.0 1.2 -

S 0.8 1.2 2.3 SSW 1.0 1.8 1.8 SW 0.6 0.6 3.0 WSW 0.8 1.4 2.8 W 0.6 2.2 2.8 l

WNW 0.7 1.0 -

NW 1.3 1.6 4. 6(2'

! NNW 0.9 0.8 -

l 1

l (1) Garden greater than 500 square feet l

(2) Goat Milk G-2

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