Text

Annual Radiological Environ Operating Rept 11 for Jan-Dec 1994
	ML20087H723
Person / Time
Site:	Limerick
Issue date:	12/31/1994
From:	; PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	;
Shared Package
ML20087H721	List: ML20087H718; ML20087H723;
References
	NUDOCS 9505040266
	Download: ML20087H723 (126)
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Docket No: 502352 ,,

50-353 LIMERICK GENERATING STATION UNITS and 2 Annual Radiological Environmental Operating Report Report #11 1 January Through 31 December 1994 Prepared By A

PECO ENERGY Nuclear Generation Group 965 Chesterbrook Blvd. _

Wayne, PA 19087-5691 EB8"28seeZi888!s2 R PDR

i Docket No: 50-352 -

50-353

. LIMERICK GENERATING STATION :

UNITS 1 anc 2 ;

i Annual Radiological Environmental Operating Report Report #11 l L

1 January Through 31 December 1994 1

l Prepared By 1

. g v '

PECO ENERGY Nuclear Generation Group ,

965 Chesterbrook Blvd.

Wayne, PA 19087-5691

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i TABLE OF CONTENTS ,

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' I. S ummary and Conclusions ' ................... .... . .......... . ................ 1 '

- II. Introduction .............................................................................2 !

2 i A. Objectives of the REMP.......... ........ .. .......... ........ ....

t e :

B. Implementation of the Objectives......... ........ ............................. 2 III. Program Description ......... ...................... .... .. ........ ...... .......... ..... 3 ,

l A. S ample Collection ............................. ........................ ...... .......... 3 ,

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B. S ample Analysis .................................... .............. .. .............. .. 4 1

C. Data Interpretation .... .................. .............................................. 5 .

1. Lower Limit of Detection ............ .....................,..................... 5 ,

2. Net Activity Calculation and Reporting of Results ... .......... 5 D. Program Exceptions .. .... .................................................. ...... 6 l E. Program Chan ges .......................................................................... 7 i

IV. Results and Discussions .................................... .. ............................ .. 8 A. Aquatic Environment .................. .... .. ........ ............................. 8 i i

1. S urface Water .......... ...... ........................................ .............. 8 i

2. Drinki ng Water ................. ........ ........ .............................. ... 8 i

3. Fish............................................................................9

4. S ediment . .................. ...... .. .. .. .. .. ...... ...... .... .......... .. .. ...... ........ . 9 l B. Atmospheric Environment ......................................... ...... .. ..... 10 i

1. Airborne ...... .. .. .. .. ........ .... .. .. .... .. ...... .. .. .. .. .... .. ...... .. .... ...... .. .. . 10 '

a. Air Particulate s ...................... ........ ...................... .... ...... 10

b. Air Iodine..... .. .................................. ........ ................ ..... I 1

2. Terrestrial ............................ .............. .. ................................. I 1

. a. Milk...............................................................................I1 l

C. Ambient Gamma Radiation ......... .................................. ............ 12 V. R e fe re ace s . .... .. .. .. .. ............ .. .. .. .. . . .. ............ .. .... ...... .. .. .. .. .... .. ...... .... ... 13 ,

LAppendix A - Radiological Environmental Monitoring Report Summary

- Appendix B - Sample Designation and Locations !

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- Appendix C - Data Tables and Figures - Primary Laboratory ,

Appendix D ~ - Data Tables and Figures .QC Laboratory l

~ i' Appendix E - Synopsis of Analytical Procedures -

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Appendix F - Quality Control - EPA Intercomparison Program !

, Appendix G - LGS Surveys

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? I. Summary and Conclusions i l

his report on the Radiological Environrnental Monitoring Program conducted for the Limerick j Generating Station by PECO Energy covers the period 1 January 1994 through 31 December 1994. During that time period,2677 analyses were performed on 2321 samples. l 1

- Surface and drinking (potable) water samples were analyzed for concentrations of gross beta-j j

.(soluble and insoluble fractions), tritium, and gamma emitting nuclides. No fission or activation products were found. Gross beta and tritium activities vetected were consistent with those l observed in other years. !

Fish (predator and bottom feeder) and sediment samples were analyzed for concentrations o 1

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 j

observed in the preoperational years. Statistically significant activity for the activation product Mn-54 was found at downstream location 16C4 (Vincent Dam) during the November collection.

This activity was attributatu to LGS operations. The calculated dose to a teenager's skin from the sediment pathway was 1.63 E-03 mrem /yr which represents 0.01% 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 naturally occurring K-40 were observed at levels consistent with those observed in other years. No fission or activation products were detected. l i

High sensitivity I-131 analyses were performed on weekly air samples. All results were less than l

the minimum detectable activity. I Cow and goat milk samples were analyzed for concentrations of I-131 and gamma emitting I; 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 t gamma spectroscopy, only three samples contained trace activities of Cs-137. The activity was j not attributable to LGS operations. He fission product Nb-95 was detected at slightly above the minimum detectable activity level and was attributed to statistical variations. 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 o !

years.

In assessing all the data gathered for this report and comparing these results with preoperational l

- data, it was evident that, the operation of LGS had no adverse impact on the environment. l I

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II. Introduction !

The Limerick Generatir.g 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 On the numerous valleys containing small tributaries which feed into the Schuylkill River. -

eastern river bank elevation rises from approximately 110 to 300 feet mean sea level (MSL). On the western river bank elevation rises to approximately 50 feet MSL to the western site boundary.

A Radiological Environmental Monitoring Program (REMP) for LGS was initiated in 1971.

Review of the 1971 through 1977 REMP data resulted in the modification of the program to comply with changes in the Environmental Report Operating License Stage (EROL) and the Branch Technical Position Paper (Rev.1,1979). The preoperational period for most media covers the periods 1 January 1982 through 21 December 1984 and was summarized in a separate report. This report covers those analyses performed by Teledyne Brown Engineering (TB) and Public Service Electric and Gas Company (PSE&G) on samples collected during the period 1 January 1994 through 31 December 1994.

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 operation -

to assess Station effects (if any) on man and the en,ironment.

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HI. Program Description :

i A. Sample Collection . t Samples for the LGS REMP were collected for PECO Energy by Normandeau Associates, RMC Environmental Services Division (RMC).' This section describes '

the collection methods used by RMC to obtain environmental samples for the LGS REMP in 1994. Sample locations and descriptions can be found in Tables B-1 and ]

> _ B-2, and Figures B-1 through B-3, Appendix B. ,

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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, j

j 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 from January through August. Commencing ?

with the September sampling a battery operated composite sampler was utilized.

Controllocations were 10F2,24S1, and 28F3. All samples were collected in new ,

4 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 (indicatcr) and 29C1 (control). Sediment samples composed of recently depositeci ufustrate were collected at three locations semiannually: 16B2 and 16C4 (indicator) and 33A2 (control).

Atmosoheric Enykas.c..: -

t The atmospheric environment was examined by analyzing samples of air j

particulate, airborne iodine, and milk. Air particulate were collected and analyzed I weekly at seventeen locations (2B1,6C1,9C1,10S3,11S1,13C1,13H4,14S1,

'15DI,17B1,20DI,22G1,26Bl. 29B1,31DI,34S2, and 35B1). Control locations ;

were 13H4 and 22Gl. Airborne iodme samples were collected and analyzed ~ l weekly from five locations, (10S3,1IS1,13C1,13H4, ar.d 14S1). A sixth location (22G1) was added to the Program during the second quarter. Control locations were 13H4 and 22Gl. Air particulate and airborne iodine samples were obtained i using a vacuum sampler, glass fiber and charcoal filters, respectively. The filters l l

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were erYed weekly and sent to the laboratory for analysis. The vacuum sam % were run continuously at approximately 1 cubic foot per minute. l Milk samples were collected biweekly at five locations (10B1,19B1,18C1,21B1, and 22F1) during April through November, and monthly during December through ,

t March and quarterly at four locations (36El,901,22C1, and 25Cl). Locations 9G1 and 22F1 were controls. All samples were collected in new unused two gallon plastic bottles from the bulk tank at each location, refrigerated, and shipped -

promptly to the laboratory. No preservative was added.

Ambient Gamma Radiation

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Direct radiation measurements were made using thermoluminescent dosimeters j

('ILD) consisting of calcium sulfate (CaSO.) doped with dysprosium (Dy). The

.a .TLD locations were placed on and around the LGS site using a "three ring 4 - concept" consisting of: :

A site boundary ring consisting of sixteen locations (36S2,3S1, SS1,7S1, 10S3, 11 S 1, 14S 1, 16S2, .- 18S 1, 21 S 1, 23S2, 25S 1, 26S3, 29S 1, 32S I ' and l 34S2) near and within the site per'ums representing fencepost doses (i.e., at locations where the doses'will be potentially greater than maximum annual l g ;

off-site doses) from LGS release. A middle ring consisting of twenty-seven locations (2B1, 2El, 4El, 6C1, 7E1, 9C1,10El,10F3,13CI,13El, ISD), -l 16F1,17B 1,19D1, 20DI, 20F1, 24D1, 25D I, 26B 1, 28D2, 29B 1, 29E1, 31D1, . J

l 31D2,34El,35B1 and 35F1) extending to approximately 5 miles from the site l

designed to measure possible exposures to close-in population.' And an outer i ring consisting of five locations (5H1,13H4,18G1,22G1 and 32G1) extending from approximately 12 to 30 miles from the site and considered to be t unaffected by IJGS releases. :

The specific TLD locations were determined by the following criteria: j

1. The presence of relatively dense population; Site meteorological data taking into account distance and elevation for each !

2. ;

of the 16-221/2 degree sectors around the site, where estimated annual dose !

from LGS, if any, would be most significant; t

3. On hills free from local obstructions and s 7 thin sight of the vents (where ]

Practical);-

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

direction.

l Two TLDs - each comprised of four thermoluminescent phosphors enclosed in t plastic - were placed at each location in a PVC conduit located approximat; three feet above ground level. One TLD we', exchanged monthly and the other quarterly and sent to the laboratory for andysis.

B. Sample Analysis .

In order to achieve the stated ob)ctives, the current program includes the following analyses: '

i 1.

Concentrations of beta emitters in surface and drinking (potable) water, and air particulates.

2. Concentrations of gamma emitters in surface and drmking (potable) water, air particulates, milk, fish, and sediment.

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3. Concentrations of tritium in surface and drinking (potable) water.

~ 4. Concentrations of I-131 in air and milk. )

Ambient gamma radiation levels at various site environs.

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. t C. Data Interpretation

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The radiological and direct radiation' data collected prior to LGS becoming - j operational ~was used as- a baseline with which this operational data will be' j 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 j

i interpretation of the data. These factors are discussed: here to avoid undue !

repetition in the discussion of the results. I

1. Lower Limit of Detection il The lower limit of detection (LLD) was def~med as the smallest concentration of radioactive material in a sample that would yield a'na 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 achie":

a the required LOS detection capabilities for environmental sample analysis. l q

2. Net Activity N1m4* ion and Reporting of Results Net activity for a sample was calculated by subtracting back' ground 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 results calculation, see Appendix E.

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

- 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 i

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Detectable Activity and tierefore most likely not a "true positive result".

Statistically Non-significar.t Aedvity includes calculated " negative activity".

PSE&G n.ywr4 gamma spec and iodine-131 analyses as Activity i 1.%

Sigma coundng'stadstic when the activity was greats than or equal to the 1.% sigma.' When an activity was less than the 1.% sigma, the result was reponed as-"< the 1.% sigma value". PSE&G refers to the,1.% sigma

value as the individual sample MDA. For specific equations lplease.sec ,

. Appendix E. .

Data myord in this report were gerd using the convention of rounding . I the result to the same number of significant places as the first significant -

digit in the error term (i.e., 3.62

1.23 rounds to 4 i 1; 10.93~i 0.%

rounds to 10.9 i 1.0; -0.01

0.1 rounds to 0.0 i O.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 occunence were reponed. Means and-These standard standard deviations of these results were calculated.

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. l l

j D. Program Exceptions For 1994 the LGS REMP had a sample recovery rate of better than 99%. 'Ihe exceptions to this program are listed below:

1. Air particulate filters were not available from location 2B1 from week #7 and 26B1 from week #6 due to sample collection errors.

2. Air particulate samples were not collected from location 15DI (week #32),

34S2 (week #27),29B1 (week #20) due to electrical problems.

3. Air particulate and air iodine samples were not collected from location 10S3 from week #30 due to electrical problems.

4. Air particulate sample was not collected from locadon 17BI from week #39 due to a pump failure.

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

'l C.

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5. Surface water samples collected at location 24S1 (LGS Intake) were composites of weekly grabs during the weeks of 1/18/94,1/24/94,5/24/94, 7/8/94, 8/23/94, 8/30/94, 9/7/94, 9/20/94, 10/18/94, 11/8/94, 11/14/94 11/28/94 and 12/28/94 due to equipment problems.

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6. Surface water samples collected at location 13B1 (Vincent Dam)' were-composites of weekly grabs during the weeks of 1/10S4,3/23/94,3/28S4,-

4/4S4,4/11S4,5/13S4,5/17S4,7/20S4,12/19S4 and 12/2SS4 due to -

equipment problems.

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7. Surface water samples collected at location- 10F2 (Perkiomen. Pumping

-- Station) were composites of weekly grabs during the weeks of 4/20S4,

' 4/25/94,5/17B4,5/2464,5/3164 and 6/6/94 due to equipment problems.

8. Drinking water samples collected at location 13H2 (Belmont Water Works) .

were' composites of weekly grabs during the weeks of 4/25/94, 5/2/94, <

5/13S4 and 5/17S4 due to equipment problems.

' 9. Drinking water samples collected at location 15F4 (Philadelphia Suburban) were composites of weekly grabs during the week of 4/4/94 due to equipment problems.

10. Drinking water samples collected at location 15F7 (Phoenixville) were composites of weekly grabs during the week of 6/14/94 due to equipment problems.

11. The July TLD from location 20D1 was lost in transit to the laboratory.

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 numerous equipment problems noted for surface water locations 24S1 and 13B1 were discussed with the sample collection .

contractor. 'Ihe major cause of pump failure has been silt build up and a subsequent loss of prime and then pump burn out. Maintenance inspections at these two locations will be meressed to at least twice per week. The overall sample recovery rate indi',ates that the appropriate procedures and equipment are in place to assure reliable program implementation.

E. 1994 Program Changes A battery operated composite water sampler was installed at location 16C2 (Citizens Utilities) in September. The sampler will be removed when EE.psatures cause the sampler to freeze. At that time weekly grab samples will be collected for the monthly composite.

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Air iodine analyses and quarterly air particulate compositing for gamma

- spectroscopy analysis was added to location 22Gl.

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- IV.. Results and Discussion - 1 i: )

A. ' Aquatic Environment i

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1. Surface Water - i

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Samples were taken from a continuous sampler at three locations (10F2, 13B1, and 24S1) on a monthly schedule. Of these locations, only 13B1 ~l

. could be affected by Station discharges. The following analyses .were j

perfo!TDed. .I I

Gross Beta

l 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 fractions of the l surface water samples, ranging from -0.2 to 6 pCi/l for the insoluble fraction l and from 2.7 to 10 pCi/l for the soluble fraction. Similar activity levels were observed berwa indicator and control locations for the insoluble an !

soluble fractions. the values found were consistent with those found in !

previous years (Figures C-1 and C-2, Appendix C). :

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

-20 to 130 pCa/1.

Gamma Sm,Lessv Samples from all locations were analyzed for gamma emitting nuclides (Table C-I.4, Appendix C). LStatistically significant activity for naturally occurring K-40 was found in 12 of 36 samples. Potassium-40 results ranged l

from -70 to 61 pCi/1. Statistically significant activity for Ra-226 and Th-228 was found in only one sample. No statistically significant fission or -

activation products were found.

2. Drinkine (Potable) Water .- 1 Monthly samples were collected from continuous water samplers at four l locations (13H2,15F4,15F7, and 28F3). One additional drinking water ~

l location (16C2) was sampled by compositing weekly grab samples into a monthly sample from January through August. Commencing.with the September sampling a battery operated composite sampler was utilized. ,

Four locations (13H2,15F4,15F7, and 16C2) could be affsted by Station discharges. The following analyses were performed:

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Dr.98LBEla r 1

~ Samples from all locations were analyzed for concentrations of gross beta '

in the insoluble and soluble fractions (Tables C-H.1 and C-H.2, Appendix 'l

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C). The values ranged from -0.3 to 4.4 pCi/l for the insoluble fraction and from 2.0 to 9 pCi/l for the soluble fraction. ~ Concentrations detected in both l

^ fractions were consistent with those observed in previous years (Figures C-3 and C-4, Appendix C).

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Tritium 1 i

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

from -20 to 160 pCi/1. Similar activity levels were observed at all locations.- l Gamma Socctrometry r Samples from all locations were analyzed for gamma emitting nuclides l l

(Table C-U.4, Appendix C). Statistically significant activity for naturally.

occurring K-40 was found in 13 of 60 samples. Potassium-40 results ranged ]

from -35 to 56 pCi/1. No statistically significant fission or activation products were found.

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3. figh-Fish samples comprised of catfish / bullhead ' (bottom feeder) and-redbreast /pumpkinseed (predator) were collected at three locations (16C5, 20S1 and 29C1) semiannually. Two locations (16C5 and 20SI) could be affected by Station discharges. The following analysis was performed:

Gamma Swhewsv The edible portion of fish samples from all three locations was analyzed for gamma emitting nuclides (Table C-HI.1, ApWix C). With the exception of naturally occurring K-40, no statistically significant fission or activation

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products were found. Historicallevels of Cs-137 are shown in Figure C-5, Appendix C.

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4. Sediment .

l Aquatic sediment samples were collected at three locations (16B2,16C4 and l

33A2) semiannually. Of these locations, two (16B2 and 16C4) could be affected by Station discharge. The following analysis was performed: ,

s Gamma Socctrometry ,

Sediment samples from all three locations were analyzed for gamma emitting nuclides (Table C-IV.1, Appendix C). Nuclides detected were 9

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cosmogenic Be-7; naturally occurring K-40, Ra-226 and Th-228; activation products Mn-54; and fission product Cs-137. The nuclides n-228 and 4j

Ra-226 commonly occur in; sediment from. daughter decay 'of natural uranlum.

Concentrations of the fission product Cs-137 were found in sediment ;

samples frrem both indicator locations. Location 16B2 had the highest '

average concentration of 290 pCi/kg' dry. He activity detected was consistent with those observed in the preoperational years (Figure C-6, Appendix C).

i Statistically significant activity for the activation product Mn-54 was found ]

at location 16C4 (Vincent Dam) during the November collection. .The activity ranged from 10 to 50 pCiftg (dry). .

The calculated dose from this pathway to a teenager's skin was 1.63 E-03 _l i

mrem /yr. This value is based upon the assumption the maximum concentration Mn-54 at the downstream locations was present the entire ;

i year. This dose represents 0.01% of the allowable fraction of 10 CFR 50, Appendix I limits.

B. Atmospheric Environment

1. Airborne '

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a. Air Particulates l Continuous air particulate samples .were collected fmm seventeen - .l 1

locations on a weekly basis. The seventeen locations were separated into three groups: Group Iwiwts locations.within the LGS site l boundary (10S3,11S1,14S1 and 34S2), Group II wie..ts locations l near the LOS site (2B1,6C1,9C1,13C1,15DI,17B1,20D1,26B1, .!

29B 1, 31DI,35B 1), and Group III represents control locations at remote j distances from LGS (13H4 and 22G1). The following analyses were l performed:

Gross Beta ,

l Weekly samples were analyzed for concentrations of beta emitters !

(Table C-V.1, Appendix C). ,

Detectable gross beta activity was observed at all locations. Comparison of results among the three groups aid in determining the effects,if any, resulting from the operation of LilS. The results from the On-Site !

locations (Group I) ranged from 7 to 34 E-3 pCi/m' with a mean of 17 E-3 pCi/m'. The results from the Intermediate Distance locations l (Group H) ranged from 6 to 34 E-3 pCi/m' with a mean of 17 E-3 l 1

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' pCi/m'.' *the results from the Distant locations (Group III) r::nged from j '

7 to 35 E-3 pCi/m' with a mean of 18 E-3 pCi/m'. Comparison of the

- weekly mean values indicate no notable ~ differences among the three ;

Comparison of the 1994 air j groups (Figme C-7,, Ayadir C).

particulate data with previous years data suggest no effects from the -l

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

-a Gamma Socctrometry l i

, Weekly samples from six locations (10S3,' 11S1,14S1,13C1,13H4, and - ]

22GI) were composited and analyzed quarterly for- gamma emitting i nuclides (Table C-V.2, Apn=dir C). - Naturally occurring Be-7. due to ' j cosmic ray activity was Me3ed in all samples. These values ranged l from 60 to % E-3 pCi/m'.- Potassium-40, also naturally occurring, was' i dc;ccisi in statistically significantly quantities in 10 of 20 samples. j i

Activity for K-40 ranged from -5 to_37 E-3 pCi/m'. No statistically significant fission or activation products were found. l r

b. Airborne lodine

.1 Continuous air samples were collected from six'(10S3,11SI,14SI, ;

t 13C1,13H4, and 22G1) locations and analyzed weekly for I-131 (Table C-VI.1, Appendix C). No statistically significant I-131 activity was found.

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2. Tenestrial .l t

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a. MiHE j Samples were eten from five locations (10B1,' 18C1,19B1,21B1 and );

22F1) biweekly April through November and monthly December through March. Samples from four additional locations (9G1,22C1, f 25C1 and 36E1) were taken quarterly. The following analyses were ;

a performed: 7 4

Iodine-131 ;

All milk samples from alllocations were analyzed for concentrations of (

I-131 (TaNe C-VII.1, Appendix C). Values ranged from .17 to .06 l pCi/1. All results were below the minimum detectable ac'ivity.

Gamma Sec.neimtry l Each milk sample from locations 10B1,18C1,19B1,21B1 and 22F1 ]

were analyzed for concentrations of gamma emitting nuclides (Table l C-VII.2, Appendix C). t i

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Statisdcally'significant K-40 activity was found in all samples. The j values ranged from 1100 to 1800 pCi/1. l

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Statistically significant activity for Cs-137 was found:in 3 of 102 l j

samples. Activity for Cs-137 ranged from -2 to 5 pCi/1. Cesium-137 levels have decreased since the Chernobyl accident in 1986. i l

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.1 C.. Ambient Gamma Radiation ~

Ambient ' gamma radiation levels were measured utilizing CaSO.:Dy :

thermoluminescent dosimeters. Forty-eightTLD locations were established around l l

the site in a three ring concept for comparison purposes: an " inner ring" of sixteen locations around the ' site boundary; a " middle ring" of twenty-seven locations l

j within a ten mile radius of the site; and an " outer ring" of five locations at distances outside the ten mile radius of the site. Results of TLD measurements 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 -

i: 3.6 to 10.5 mR/std. month for the monthly TLDs and from 3.6 to 8.0 mR/std.

i month. for the quarterly TLDs. Levels measured were consistent with those

' observed in previous years (Figure C-9, Appandir C).

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- V. References 1.

Environmental Repon Operating Licr.nse Stage, Limerick Generating Station, Units

1 and 2, Volumes 15. Philadelphia Electric Company.

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

1979.

3. - Preoperational Radiological Environmental Monitoring Program Report, Lim Generating Station Units 1 and 2,1 January 1982 through 21 December _1984,'

Teledyne Isotopes and Radiation Management Corporation.

4. Radiological Environmental Operating Repon No. 2, Limerick Generating Statio Units 1 and 2,1 January through 31 December 1985, Philadelphia Electric' i Company, analyses by Teledyne Isotopes.

5. Radiological Environmental Operating Repon 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 Repon 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 Repon 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.

12 Radiological Environmental Operating Repon No.10, Limerick Generating Station Units 1 and 2,1 January through 31 December 1993, PECO Energy Company, analyses by Teledyne Isotopes.

1

,.A e - a - ==.-m au,,, - ar a a i- .-e -

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1 a

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APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

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J i

APPENDIR A CAOIOLOGICAL ENVIRONME ;i AL MONITORING PROGRAM ANNUAL

SUMMARY

DOCKET No.: 50 352 & 50-353 NAME OF FACILITY: LIMERICK GENERATING STATION REPORTING PERI (2: 1994 LOCATION OF FACILITY: MONTGOMERY COLitTY, PA INDICATOR CONTROL LOCAil0N WITN NIGNEST ANNUAL MEAN NUMBER REQUIRED LOCATIONS LOCATIONS STAil04 # OF WONROUTINE MEAN MEAN TYPE OF NUMBER OF LOWER LIMIT MEAN REPORTED MEDIUM OR ANALYSES OF DETECTION (F) (F) (F) NAME MEASUREMENTS PATHWAY SAMPLED ANALYSES RANGE DISTANCE & DIREcil0N RANGE RANGE PERFORMED (LLD)

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

15F4 (INDICATOR) O 60 4 5.1 4.6 5.8 GROSS BETA PHILA. SUB. WATER CD.

(48/48) (12/12) (12/12)

SOLUBLE 8.62 MILES SE OF SITE (2.0/9.ft) (3.0/6.0) (4.0/9.0) 13H2 (INolCATOR) 0 40 20 70 TRITIUM 20 2000 BELMONT WATER WORKS (PHILA.)

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

(-30/120) (-40/160) 24.91 MILES SE OF SITE

( 40/160)

GAMMA 60 0

-3 4 4 28F3 (CONTROL)

K-40 N/A POTTSTOWN WATER AUTHORiiY (48/48) (12/12) (12/12)

(-11/25) (-11/25) 5.84 MILES WWW OF SifE

(-35/56) 28F3 (CONTROL) 0 15 0.1 0.1 0.1 MN 54 (12/12) POTTSTOWN WATER AUTHORITY (48/48) (12/12)

(-0.7/0.5) (-0.2/0.6) (-0.2/0.4) 5.84 MILES WWW OF SITE 13M2 (INDICATOR) 0 15 -0.1 -0.1 0.0 co-58 (12/12) BELMONT WATER WORKS (PHILA.)

(48/48) (12/12)

( 0.4/0.4) (-0.4/0.5) 24.91 MILES SE OF SITE

(-0.7/0.5) 28F3 (CONTROL) 0 30 0.0 0.2 0.2 FE-59 (12/12) POTTSTOWN WATER AUTHORITY (48/48) (12/12)

(-1.0/0.8) (-0.6/1.03 ( 0.6/1.0) 5.84 MILES WNW OF SITE 13N2 (INDICATOR) 0-15 0.1 0.2 0.3 Co-60 (12/12) DELMONT WATER WORKS (PHILA.)

(48/48) (12/12)

( 0.2/0.6) (-0.4/2.4) 24.91 MILES SE OF SliE

(-0.6/2.4) 15F7 (INDICATOR) 0 30 0.2 0.3 0.4 24-65 (12/12) PHOENIXYlLLE WATER WORKS (48/48) (12/12)

(-0.8/1.4) (-0.7/2.0) 6.33 MILES SSE OF SITE

(-1.0/3.0) 16C2 (INDICATOR) 0 30 'O.3- 0.4 0.6 ZR-95 CITIZENS MOME WATER CO.

(48/48) (12/12) (12/12)

(-0.5/1.0) (-0.3/2.0) 2.66 MILES SSE OF SITE

(-1.0/2.0)

MEAN A40 RANGE SASED UPON DETECTA8LE MEASUREMENTS ONLY.

FRACil0N OF DETECTABLE MEASUREMENTS Ai SPECIFIED LOCAil0NS IS INDICATED IN PARENTHESES (F).

A-3

APFENDIX A RADIOLOGICAL ENVIRONME~.TCL MONiiORING PROGRAM ANNUAL

SUMMARY

NAME OF FAClllif: LIMERICK GENERAllNG ST AtlCM DOCKET No.: 50-352 8 50-353 LOCATION OF FACILITY: M0hfMIMERY COUNIT, PA REPORilNG PERIOD: 1994 INDICATOR CONTROL LOCATION WITN MIGNEST ANNUAL MEAN NUMBER REQUIRED LOCAil0NS LOCAil0NS MEAN STAfl0W # OF NONROUTINE MUMBER OF LOWER LIMIT MEAN MEAN MEDitM OR TTPE OF REPORTED ANALTSES ANALYSES OF DETECTION (F) (F) (F) NAME PATHWAY SAMPLED RANGE DISTANCE & DIRECTION MEASUREMENTS PERFORMED (LLD) RANGE RANGE (UNii 0F MEASUREMENT) PERFORMED 0.3 13H2 (INDICATOR) 0 N8-95 15 0.3 0.3 (48/48) (12/12) (12/12) BELMONT WATER WORKS (PMILA.)

(-0.7/0.7) (-0.1/0.7) ( 0.7/0.7) 24.91 MILES SE OF SliE 0.1 13M2 (INDICATOR) 0 CS-134 15 0.0 0.0 (12/12) (12/12) SELMONT WATER WORKS (PMILA.)

(48/48)

(-0.7/0.5) (-1.3/0.4) (-0.1/0.5) 24.91 MILES SE OF SliE 0.3 28F3 (CONTROL) 0 CT-137 18 0.2 0.3 (12/12) (12/12) P0iTSTOWN WATER AUTHORITY (48/48)

(-0.6/0.7) (-0.1/0.8) (-0.1/0.8) 5.84 MILES WNW OF SITE 0 15F4 (INDICATOR) 0 8A-140 60 0 0 (48/48) (12/12) (12/12) PMILA. SUS. WATER CO.

(-2/2) ( 1/4) (-2/2) 8.62 MILES SE OF SITE 0.1 16C2 (INDICATOR) 0 LA-140 15 0.0 -0.2 (12/12) (12/12) CITIZENS MOME WATER CO.

(48/48)

(-1.0/1.0) (-1.0/0.3) (-J 71.0) 2.66 MILES SSE OF SliE PREDATOR (FISM) GAMMA 6 0 2900 3300 3300 29C1 (CONTROL)

(PCl/ KILOGRAM WET) K-40 N/A Pottstown Vicinity (4/4) (2/2) (2/2)

(2400/3600) (3000/3500) (3000/3500) UPSTREAM OF DISCHARGE 8 20S1 (INDICATOR) 0 MW 54 130 6 -3 (4/4) (2/2) (2/2) Discharge Area (1/10) (-5/-1) (6/10) DOWNSTREAM OF DISCHARGE 29c1 (CONTROL) 0 Co 58 130 -3 1 1 (4/4) (2/2) (2/2) Pottstown Vicinity

(-7/1) (-1/2) (-1/2) UPSTREAM OF DISCMARGE 20$1 (INDICATOR) 0 FE-59 260 0 0 10 (4/4) (2/2) (2/2) Discharge Area

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

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCAfl0NS IS INDICATED IN PARENTMESES (F).

A-4

-- - --- %v - , , . _ . . _ _

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITCRIKG PROMAN ANNUAL SUMMART NAME OF fACILITT: LIMERICK GENERAftNG STATION DOCKET No.: 50-352 & $0-353 LOCAil04 0F FACILITY: MONTGOMERT COUNif, PA INDICATOR CONTROL REPORTING PERIOD: 1994 REQUIRED LOCATIONS LOCAil04 UliR N!GNEST ME01UM OR TTPE OF LOCAfl0NS NUMBER OF LOWER LIMIT MEAN ANNUAL MEAN PAINWAT SAMPLED ANALTSES MEAN MEAN NUMBER ANALYSES OF DETECTION (F) STATION #

(UNIT OF MEASUREMENT) PERFORMED PERF (F) (F) NAME OF NONROUTINE

..................... ............. ....ORMED .s...(LLD)

RANGE RANGE RANGE REPORTED MEASUREM

............. ............. ............. .... DISTANCE & DIRECTION.........................

........ENTS CO-60 130 8 0 10 16C5 (4/4) (2/2) (2/2)

(INDICATOE) 0 (3/11) Vincent Pool (0/10) (8/11) DOWNSTREAM OF DISCHARGE 2N-65 260 10 0 20 (4/4) (2/2) (2/2) 16CS (INDICATOR) 0 (0/20) vincent Poot (0/10) (10/20) DOWNSTREAM OF OtSCHARGE CS-134 130 0 3 3 29C1 (4/4) (2/2) (2/2)

(CONTROL) 0

(-4/3) (2/4) Pottstown Vicinity (2/4) (PSTREAM OF DISCHARGE CS-137 150 4 5 6 16C5 (4/4) (2/2) (2/2)

(t elCATOR) 0 (1/7) Vincent Pool (2/7) (5/7) DOWNSTREAM OF DISCHARGE BOTTCM FEEDER (FISH) GAMMA 6 (PCI/ KILOGRAM UET) K-40 N/A 3300 3700 3700 29C1 (4/4) (2/2) (2/2)

(CONTROL) 0 (2700/3900) Pottstown Vicinity MM-54 (3500/3900) (3500/3900) UPSTREAM OF DISCHARGE 130 2 0 5 20S1 (4/4) (2/2) (2/2)

(INolCATOR) 0

(-1/8) Discharge Area (0/10) (1/8) DOWNSTREAM OF DISCHARGE Co 58 130 0 -10 0 2051 (4/4) (2/2) (2/2) (INDICATOR) 0

(-2/2) Discharge Area

(-10/-10) (0/1) DOWNSTREAM OF DISCHARGE TE-59 260 0 -10 10 (4/4) (2/2) 16C5 (INDICATOE) 0 (2/2) Vincent Poot

(-10/10) (-10/0) (0/10) DOWNSTREAM OF DISCHARGE CD-60 130 4 0 6 20S1 (4/4) (2/2) (2/2)

(INDICATOR) 0

(-2/10) Discharge Area

(-10/0) (1/10) DOWNSTREAM OF DISCNARGE MEAN AND RANGE BASED UPON DETECTABLE MEASUREMENTS ONLY.

FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCAil0NS 13 INDICATED IN PA .

A-5 7

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APPENDIX A RADIOLOGICLL ENVIRONME%TAL MONITORlWG PROGRAM ANNUAL SupMART NAME OF FACILITY: LIMERICK GENERATING STATION DOCKET No.t 50-352 & 50-353 LOCATION OF FACILITY: MONTGOMERT COUNTY, PA REPORTING PERIG): 1994 INDICATOR CONTROL LOCATION WITN MIGHEST ANNUAL MEAN NUMBER REQUIRED LOCATIONS LOCATIONS MEAN STATION # OF NONROUTINE TYPE OF NUMBER OF LOWER LIMIT MEAN MEAN MEDIUM OR REPORTED ANALYSES ANALYSES OF DETECTION (F) (F) (F) NAME PATMWAY SAMPLED DISTANCE & DIRECTION MEASUREMENTS RANGE RANGE RANGE PERFORMED (LLD)

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

10 16C5 (INDICATOR) 0 Co-60 130 8 0 (4/4) (2/2) (2/2) Vincent Pool (3/11) (0/10) (8/11) DOWNSTREAM OF DISCHARGE 20 16C5 (INDICATOR) 0 2N-65 260 10 0 (4/4) (2/2) (2/2) Vincent Pool (0/20) (0/10) (10/20) DOWNSTREAM OF DISCHARGE 3 20C1 (CONTROL) 0 CS-134 130 0 3 (2/2) Pottstown Vicinity (4/4) (2/2)

(-4/3) (2/4) (2/4) UPSTREAM OF DISCMARGE 6 16C5 (INDICATOR) 0 150 4 5 CS-T37 Vincent Pool (4/4) (2/2) (2/2)

(1/7) (2/7) (5/7) DOWNS REAM OF DISCHARGE BOTTOM FEEDER (FISH) GAMMA 6 0 3300 3700 3700 29C) (CONTROL)

(PCl/ KILOGRAM WET) K-40 N/A Pottstown Vicinity (4/4) (2/2) (2/2)

(2700/3900) (3500/3900) (3500/3900) UPSTREAH OF DISCHARGE 2051 (INDICATOR) 0 130 2 0 5 MN 54 Discharge Area (4/4) (2/2) (2/2)

(-1/8) (0/10) (1/8) DOWNSTREAM OF DISCHARGE 0 20S1 (INDICATOR) 0-130 0 10 co-58 Discharge Area (4/4) (2/2) -(2/2)

(-2/2) (-10/-10) (0/1) DOWNSTREAM OF DISCHARGE to 16C5 (INDICATOR) 0 FE-59 260 0 -10 (4/4) (2/2) (2/2) Vincent Pool

(-10/10) ( 10/0) (0/10) DOWNSTREAM OF DISCHARGE 20S1 (INDICATOR) 0 130 4 0 6 Co-60 Discharge Area (4/4) (2/2) (2/2)

(-2/10) ( 10/03 (1/10)' DOWNSTREAM OF DISCHARGE MEAN AND RANGE 8ASED UPON DETECTABLE MEASUREMENTS ONLY.

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APPENoix A 4-RADIOLOGICAL ENVIRONMENTAL MONIVORING PROGRAM ANNUAL SUMMA.3 DOCKET NO.: 50-352 & 50-353 NAME OF FACILITY: L:MERICK GENERATING STATION REPORilNG PERIOD: 1994 LOCATION OF FACILITY: MONTGOMERY COLMTY, PA IN01CATOR CONTROL LOCATION WITN NIGNEST NUMBER LOCATIONS ANNUAL MEAN REQUIRED LOCATIONS 0F NONROUTINE MEAN MEAN STATION f TYPE OF NUMBER OF LOWER LIMIT MEAN NAME REPORTED MEDIUM 04 (F) (F)

PATMWAY SAMPLED ANALYSES ANALYSES OF DETECil0N (F) RANGE DISTANCE & DIRECil0N MEASUREMENTS RANGE RANGE .............

PERFORMED (LLD)

(UNIT OF MEASU9EMENT) PERFORMED..................... ............. ......... ............ ............. . ........... ............. .............................

2181 (IN0lCATOR) 0 15 0 0 1 CS-134 (21/21) (21/21) REG 10NAL FARM (63/63) 1.75 MILES SSW OF SITE

(-2/4) (-1/2) (-2/4) 22F1 (CONTROL) 0 2 2 CS-137 la 1 REGIONAL FARM (63/63) (21/21) (21/21)

(0/5) (0/5) 9.58 MILES SW OF StiE

(-2/4) 22F1 (CONTROL) 0 1

60 0 1 BA-140 (21/21) REGIONAL FARM (63/63) (21/21)

(-6/6) (-6/6) 9.58 MILES SW OF SITE

(-6/9) 0 0 0 22F1 (CONTROL) 15 0 LA-140 (21/21) REGIONAL FARM (63/63) (21/21)

(-3/2) ( 3/2) 9.58 MILES SW OF SITE

(-4/3) 0

-0.02 1081 (IN0ltATOR)

I 131 18 1 0.02 REGIONAL FARM GOAT MILK (18/18) 18/18)

(PCI/ LITER) (-0.17/0.06) (-0.17/0.06) 1.08 MILES E OF StiE GAMMA 18 1081 (INGICATOR) 0 1500 1500 K-40 N/A REGIONAL FARM (18/18) (18/18)

(1200/1803) 1.08 MILES E OF StiE (1200/1800) 1081 (INDICAf0R) 0

-1 -1 CS 134 15 (18/18) REGIONAL FARM (18/18) 1.08 MILES E OF StiE

(-5/2) (-5/2) 1081 (INDICATOR) 0 2 2 CS 137 18 (18/18) REGIONAL FARM (18/18) 1.03 MILES E OF SliE (0/6) (0/6) lost (IMOICATOR) 0 1

94 140 60 1 (18/18) REGIONAL FARM (18/18) 1.08 MILES E OF SliE

(-7/6) (-7/6)

MEAN AND RANGE BASED UPON DETECTA8tE MEASUREMENTS ONLY.

FRAcil0N OF DETECT A0LE MEASUREMENTS Ai SPECIFIED LOCAi!ONS 15 IMOICATED IN PARENTRESES (F).

A -- 8

.,*, , w ..-..%- e. w...., , . . - , - , . . . - . . - - - s v.- c .c.-,-*-.,------e<--.-4 - , + - - - . _ - - - - - - - - - - - - - -

f.PPEN0lX A RADIOLOGICAL E%YlRONME;TAL M04tf0 RING PROGRAM ANNUAL

SUMMARY

NAME OF FACIllfY: LIMERICK GENERAtlNG STATION DOCKET No.: 50-352 & 50-353 LOCATION OF FACILliY: MONTGOMERY COUNTY, PA .

REPORTING PERIOD: 1994 4 3

INDICATOR CONTROL LOCAil04 WiiN MIGHEST ANNUAL MEAN NUMBER REQUIRED LOCATIONS LOCAil0NS MEAN STATION # OF NONROUTINE NUMSER OF LOWER LIMli MEAN MEAN ME0ltr OR TYPE OF REPORTED ANALYSES ANALYSES OF DETECil0N (F) (F) (F) NAME PATHWAY SAMPLE 0 DISTANCE & DIRECTION MEASUREMENTS RANGE RANGE RANGE PERFORMED (LLD)

(UNIT OF MEASUREMENT) PERFORMED 0 1081- (INDICATOR) 0 tA-140 15 0 (18/18) (18/18) REGIONAL F4RM

(-1/1) ( 1/1) 1.08 MILES E OF Si1E 8.51 3101 (INDICATOR) 0 TLO-MONTMLY 575 N/A 7.09 6.76 DIRECT RADIATION (12/12) LINCOLN SUBSTAT104 (515/515) (60/60)

(MILLI-ROENTGEN /

STO. MONTH) (4.20 10.50). (3.60-10.40) (5.60 10.50) 3.00 MILES WNW OF SITE 6.93 3101 (INDICATORI o .

TLD-0UARTERLY 192 N/A 5.58 5.22 j (172/172) (20/20) (4/4) LINCOLN SUBSTAil0N l

(3.60 8.00) (3.60-7.80) (5.50-8.00) 3.00 MILES WWW OF SITE l

MEAN AND RANGE BASED UPON DETECTABLE MEASUREMENTS ONLY.

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

A-9

.,42. - _ a. -

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APPENDIX B SAMPLE DESIGNATION AND LOCATIONS l

I l

l I

k 1

- . ~ . . . - __

APPENDlX B: SAMPLE DESIGNATION AND LOCATIONS I

LIST OF TABLES AND FIGURES

! . TABLES i

- TABLE B-1: Location Designation and identification System for the Limerick -

Generating Station 1 1

TABLE B-2: Sample Collection and Analysis Program for the Operational i Radiological Environmental Monitoring Program, Limerick Generating Station,1994 FIGURES FIGURE B-1: Environmental Sampling Locations Within One Mile of the Limerick Generating Station,1994 FIGURE B-2: Environmental Sampling Locations Between One and Five Miles from the Limerick Generating Station,1994 .

FIGURE 113: Environmental Sampling Locations Greater Than Five Miles from the Limerick Generating Station,1994 W

6 l

B-i

i i

l

. TABLE B-1: Location Designation and Identification System for the Limerick Generating Station XXYZ - General code for identification of locations, where: l XX - Angular Sector of Sampling Location. The compass is divided into 36 sectors of 10 degrees each with center at -

[

Limerick's Units 1 and 2 off-gas vents. Sector 36 is centered due North, and others are numbered in a 1 clockwise direction.

- Radial Zone of Sampling Location (in this report, the ,

.Y :

radial distance from the Limerick vent for all regional stations). f 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 Station's Numerical Designation within sector and zone, Z - '

using 1, 2, 3... in each sector and zone.

I I

I i

t A

i B-1 i.

TABLE B-2:

Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program fo Generating Station,1994 Collection Method and Analysis & Frequency Location Location Description Distance & Performed--Consultant Direction Frequency A. Surface Water G. Beta (S&ll - monthly - TB 7.25 miles E Two gallon sample collected from 10F2 Perkiomen Pumping Station Gamma Spec - monthly - TB a continuous water sampler, (control) Tritium - quarterly comp. - TB monthly G. Beta (S&ll - monthly - PSEG*

Gamma Spec - monthly - PSEG*

Same as 10F2 Same as 10F2 Vincent Dam (int /nator) 1.75 miles SE 1381 Same as 10F2 Same as 10F2 Limerick Intake (control) 0.20 miles SW 24S1 B. Drinkina (Potable) Water G. Beta (S&fl - monthly - TB 24.91 miles SE Two gallon composite sample 13H2 Belmont Water Works Gamma Spt c - monthly - TB collected from a continuous water Tritium - quarterly comp. - TB (indicatori sampler, monthly Same as 13H2 Same as 13H2 15F4 Philadelphia Suburban Water 8.62 miles SE ,

Company (indicator)

Same as 13H2 Same as 13H2 '

6.33 miles SSE 4

15F7 Phoenixville Water Works (indicator)

B-2 1

- _ _-__ _ - - - en_. . . w a-. --e -w- * = v w-* - - . +e- --s --we w +=n-w+-w-- * *~-- -- e -m-.-ew . - --m. .--w+= -w-w --- _-______,._._._-_.__-____m ___,- _ _ . . . _ . . _.___ _ . _ _

TABLE B-2: Sarnple Collection and Analysis Program for the Radiological Environmental Monitoring Program for Limerick ~

~*

Generating Station,1994 Location Description Distance & Collection Method and Analysis & Frequency Location Performed-Consultant Direction Frequency 2.66 iniles SSE Two gallon composite sample Same as 13H2 16C2 Citizens Home Water '

Company (indicator) collected by weekly grab samples, monthly Pottstown Water Authority 5.84 miles WNW Same as 13H2 Same as 13H2 28F3 (control)

C. Cow's Milk -

Two gallons processed milk 1-131 - quarterly - TB 3GE1 4.70 miles N purchased quarterly at farm dairy

' store 11.64 miles E Two gallon greb sample coIIected Same as 36El SG1 Control from bulk tank at farm quarterly Two gallon grab sample collected 1-131 - biweekly - TB 18C1 2.26 miles S from bulk tank at farm bi-weekly - Gamma Spec - biweekly - TB during grazing season (April through November); monthly otherwise 1.95 miles SSW Same as 18C1 1-131 - biweekly - TB 1981 Gamma Spec - biweekly - TB .

1-131 - quarterly - PSEG*

Gamma Spec - quarterly - PSEG*

B-3 ,

- ,-~.--w,,.---- , ,ww ges* u--v--ww--w e ww, w. - -w e v v-,e'-* ww*- -~r- --wew-r- -- +-w-~'-' --*==++wr*--e -e r ~ - = r v v=-tww=vv++ w w w w+w+-w-= *w w- - * * - - - - - > <--m---.- - - - - - - - - ------------ - - - --

. . . .. - . - - ,= . ~. . . - ~

FABLE B-2: Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program for Limerick Generating Station,1994 Location Description Distance & Collection Method and Analysis & Frequency Location Performed-Consultant Direction Frequency Same as 18C1 Same as 1981 2181 1.75 miles SSW Same as 9G1 Same as 36El 22C1 2.92 miles SW Same as 18C1 Same as 1981 22F1 Control 9.58 miles SW Same as 18C1 Same as 18C1 25C1 2.69 miles WSW D. Goat's Milk Two gallon grab sample I-131 - biweekly - TB 1081 1.08 miles E Gamma Spec - biweekly - TB purchased at goat farm, biweekly during grazing season (April through November); monthly otherwise E. Air Particulates / Air lodine Approximately 1 cfm continuous G. Beta - weekly - TB 2B1 Sanatoga Substation 1.49 miles NNE I-131 -if necessary flow through glass fiber and charcoal filters (approx. 2*

diameter) which are installed for one week and replaced Same as 2B1 Same as 2B1 6C1 Pottstown Landing Field 2.14 miles NE Same as 281 Same as 2B1 9C1 Reed Road 2.15 miles E B-4

g 4 g

TABLE B-2: Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program for Limerick Generating Station 1994 e Distance & Collection Method and Analysis & Frequency.

Location Location Description Direction ' Frequency Performed--Consultant 4

Same as 281 G. Beta - weekly - TB 10S3 Keen Road 0.50 miles E Gamma Spec - quarterly comp. - TB

! I-131 - weekly - TB Same as 281 Same as 10S3 11S1 LGS Information Center 0.38 miles ESE G. Beta - weekly - PSEG

LGS Information Center 0.38 miles ESE Same as 281 11S2 Gamma Spec - quar comp - PSEG' Same as 281 Same as 10S3 13C1 King Road 2.84 miles SE Same as 281 Same as 10S3 13H4 2301 Market St., 28.53 miles SE Philadelphia (controll Same as 2B1 Same as 10S3 14S1 Longview Road 0.63 miles SSE Same as 281 Same as 11S2 14S2 Longview Road 0.63 miles SSE Same as 281 Same as 2B1 15D1 Spring City Substation 3.20 miles SE

~

1.60 miles S Same as 281 Same as 281 1781 Linfield Substation Same as 2B1 Same as 2B1 2001 Ellis Wood Road 3.06 miles SSW 17.73 miles SW Same as 281 Same as 231 22G1 Manor Substation (controll .

1.68 miles W Same as 281 Some as 281 26B1 Old Schuylkill Road Same as 281 Same as 2B1 29B1 Vost Road 1.77 miles WNW B-5

~ -.,wr,..s -o. -, - r--,.,-.,..-w.,v.-c, ---- - ~~ - - . - - *ww. 7 . ,-,-,.- -wnr --- -.. - - < ,e,.w,v y y -

s,- ,,-- ,v., , ,-%e. , - , - - , - - ,-.v.www--v,-.- r -,,- .. . . , . - . - - , _ . _ _ _ _ _ _

TABLE B-2:

Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program for Limer Generating Station,1994 Collection Method and Analysis & Frequency Lccation Location Description Distance &

Frequency Performed-Consultant Direction Same as 29! Same as 2B1 31D1 Lincoln Substation 3.00 miles WNW Same as 281 Same as 2B1 34S2 Met. Tower #1 0.58 miles NNW Same as 2B1 Same as 281 35B1 Pleasantview Road 1.66 miles NNW F. Fish Fish flesh from two groups Gamma Spec - semiannually - TB 16C5 Vincent Pool (indicator) Downstream of Discharge representing p.edator and bottom feeder species collected by electrofisher or other appropriate fishery gear, semiannually Same as 16C5 Same as 16C5 20S1 Discharge Area (indicatori Downstream of Disenarge Same as 16CS Same as 16C5 Pottstown Vicinity (control) Upstream of Intake 29C1 4 G. Sediment Recently deposited sediment Gamma Spec - semiannually - TB 1682 Linfield Bridge (indicatori 1.35 miles SSE collected below the waterline, semi-annually Same as 16B2 Same as 1682 16C4 Vicent Dam (indicatori 2.18 miles SSE Same as 16B2 Same as 1682 33A2 Control 0.84 miles NNW B-6

TABLE B-2: Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program for Limerick Generating Station,1994 Collection Method and Analysis & Frequency Location Location Description Distance &

Direction Frequency Pc-formed--Consultant H. Environmental Dosimetry - TLD Collection method and frequency TLD - monthly - TB 36S2 Evergreen & Sanatoga Road 0.60 miles N TLD - quarterly - TB is described in placement procedure Section til, A.

Same as 36S2 Same as 36S2 281 Sanatoga Substation 1.49 miles NNE Same as 36S2 Same as 36S2 2E1 Laughing Waters GSC 4.76 miles NNE Same as 3652 Same as 36S2 3S1 Sanatoga Road 0.44 miles NNE Same as 36S2 Same as 36S2 4E1 Neif fer Road 4.78 miles NE Same as 36S2 Same as 36S2 SS1 Possum Hollow Road 0.45 miles NE Same as 36S2 Same as 36S2 5H1 Birch Substation 21.54 miles NE Same as 36S2 Same as 36S2 GC1 Pottstown Landing Field 2.14 miles NE Same as 36S2 Same as 36S2 7S1 LGS Training Center 0.59 miles ENE Same as 36S2 Same as 36S2 7El Pheasant Road 4.26 miles ENE Same as 36S2 Same as 36S2 9C1 Reed Road 2.15 miles E 0.50 miles E Same as 36S2 Same as 36S2 10S3 Keen Road Same as 36S2 Same as 36S2 10E1 Royersford Road 3.94 miles E B-7

_ . - - - -. . _ - . _ , o.-% , - + . _.,-r- ,_ . - -r - , , - - , _ , , . . ~ . . - . . , . . . - _ . . .n-- , -- ---- -- -, , - .-- ,, , - + , . ,. .r--.. -..- ,. . . , , . - . _ .- m -.-

1 TABLE B-2: Sample Collection and Analysis Program for the Radiological Environmentcl Monitoring Program for Limerick Generating Station,1994 Distance & Collection Method and Analysis & Frequency Location Location Description Direction Frequency Performed--Consultant Same as 36S2 Same as 36S2 10F3 Trappe Substation 5.58 miles ESE

)

Same as 36S2 Same as 36S2 11S1 LGS Information Center 0.38 miles ESE Same as 36S2 Same as 36S2 13C1 King Road 2.84 miles SE Same as 36S2 Same as 36S2 13E1 Vaughn Substation 4.31 miles SE Same as 36S2 Same as 36S2.

13H4 2301 Market Street 28.S3 miles SE Philadelphia, (controit l

Same as 36S2 Same as 3GS2 14S1 Longview Road 0.63 miles SSE l Same as 36S2 Same as 36S2 15D1 Spring City Substation 3.20 miles SE Same as 36S2 Same as 36S2 l 16S2 Longview Road 0.64 miles S56 Same as 36S2 Same as 3652 16F1 Pikeland Substation 5.04 mdes SSE Same as 36S2 Same as 36S2 1781 Linfield Substation 1.60 miles S Same as 36S2 Same as 36S2 18S1 Rail Line along Longview 0.43 miles SSE Road Same as 36S2 Same as 3652 18GI Planebrook Substation 12.97 miles S Same as 36S2 Same as 36S2 19D1 Snowden Subt.tation 3.49 miles S Same as 36S2 Same as 36S2 20D1 Ellis Woods Road 3.06 miles SSW B-8

TABLE B-2: Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program for Limerick Generating Station,1994 Location Description Distance & Collection Method and Analysis & Frequency Location Direction Frequency Performed-Consultant 5.24 miles SSW Same as 36S2 Same as 36S2 20F1 Sheeder Substation Impound Basin 0.51 miles SW Same as 36S2 Same as 36S2 21S1 17.73 miles SW Same as 36S2 Same as 36S2 22G1 Manor Substation 0.53 miles SW Same as 36S2 Same as 36S2 23S2 Transmission Tower 3.97 miles SW Same as 36S2 Same as 36S2 24D1 Porters Mill Substation Sector Site Boundary 0.40 miles WSW Same as 36S2 Same as 36S2 25S1 3.99 miles WSW Same as 36S2 Same as 36S2 25D1 Hoffecker & Keim Streets 0.40 miles W Same as 36S2 Same as 36S2 26S3 Met. Tower #2 Old Schuylkill Road 1.68 miles W Same as 36S2 Same as 36S2 2681 W. Cedarville Road 4.40 miles W Same as 36S2 Same as 36S2 28D2 Sector Site Boundary 0.55 miles WNW Same as 36S2 Same as 36S2 29S1 l Same as 36S2 2981 Yost Road 1.77 miles WNW Same as 36S2 Prince Street 4.95 miles WNW Same as 36S2 Same as 36S2 29El Lincoln Substation 3.00 miles WNW Same as 36S2 Same as 36S2 31D1 l

Poplar Substation 3.87 miles NW Same as 36S2 Same as 3652 31D2 Sector Site Boundary 0.53 miles NNW Same as 36S2 Same as 36S2 32S1 B-9

,,. , --,.,.m... m , -,w-- , - , w. ,-,,. . , , - , - ,- , - - - , , - - - - - - c -, ------~ --w,,-, ww r ,-v, v v v -

w .--.. . - --- --_-- - - . - - - - - , - .

TABLE B-2:

Sample Collection and Analysis Program for the Radiological Environmental Monitoring Program for Li Generating Station,1994 Collection Method and Analysis & Frequency .

Location Location Description Distance & Performed-Consultant Direction Frequency Same as 36S2 Same as 36S2 32G1 Friendensburg Substation 15.20 miles NW Same as 36S2 Same as 36S2 Met. Tower #1 0.58 miles NNW 34S2 Same as 36S2 Same as 36S2 Varnell Road 4.59 miles NNW 34E1 Same as 36S2 Same as 36S2 Pleasantville Road 1.86 miles NNW 35B1 Same as 36S2 Same as 36S2 35F1 Ringing Rock Substation 3.84 miles NNW

OC Laboratory B-10

I i

^

B N NNW NNE 2t NE NW 33A2 3652 3452 e 8

WN 3251 3jl ENE 551 e

2951 e10S3 2551 11S1/11S2 e2352 2 51 ESE WSW 2151 e1851

/ p14 1/1452 1652 SW SE ,

l# \ #* SSE SSW /

S t

+

i .

\

Figure B-1 Environmental Sampling Locations Within One Mile of the Limerick Generating Station, 1994 ,

B - 11

1 100 ij N

NNE NNW 36E1* ' '

34E1* 21 .,

NE NW

35F1 ,

3102 1 e

3581 e7El ENE WNW 29E1 281 31D1 6C1 29r' 2981 i

28D2 *'

E W 26Bi lobi s10E1 25C1 1682 13C1 21B 1781 13B1

,e WSW 25D1 , 16 4 22C1* ,

18C1

e e 24D1 , 16C2 15D1 13E1 2001 e

1901 SE 422

\

I IOIl H 5 ullE R ADI "

I SSW SSE

[ S Figure B-2 Environmental Sampling Locations Between One and Five 1994 Miles from the Limerick Generating Station, B- 12

y 9,

jf ; .. .

3 ,

. n::

\ \8 l

~

e =

=

uu e.

K

'. 5 os "ce EN 3

23,

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i.-- gri ;

m N ,

=

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h, 1

b gj a.

sd 0 L l e s- '

e 8:

9 *d b;C e " '

z y .

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~ .,

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F I

i 1

APPENDIX C DAT^ TABLES AND FIGURES Fiui1ARY LABORATORY 4

4 l

l l

- .~. , ---

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

1 l

l APPENDIX C: ' DATA TABLES AND FIGURES - PRIMARY LABORATORY i

i TABLES I I

Table C-l.1-. Concentrations of Gross Beta insoluble in Surface Water !

Samples Collected in the Vicinity of Limerick Generating .

Station,1994.

Table C-l.2 Concentrations of Gross Beta Soluble in Surface Water Samples Collected in the Vicinity of Limerick Generating j ,

Station,1994.

l '

Concentrations of Tritium in Surface Water Samples :

Table C-l.3 Collected in the Vicinity of Limerick Generating Station, l 1

1994.

1 Table C-l.4 Concentrations of Gamma Emitters in Surface Water'-

Samples Collected in the Vicinity of Limerick Generating Station,1994.

f i

{

Concentrations of Gross Beta insoluble in Drinking Water l Table C-II.1 ;

Samples Collected in the Vicinity of Limerick Generating '

Station,1994. l E

Tab'e C-II.2 Concentrations of Gross Beta Soluble in Drinking Water ;

i Samples Collected in the Vicinity of Limerick Generating l

Station,1994. r Concentrations of Tritium in Drinking Water Samples l Table C-II.3 j Collected in the Vicinity of Limerick Generating Station, l l

' 1994. l Table C-II.4 Concentrations of Gamma Emitters in Drinking Water- l Samples Collected in the Vicinity of Limerick Generating ;

Station,1994.

i Concentrations of Gamma Emitters in Fish Samples - 1 Table C-Ill.1 1

Collected in the Vicinity of Limerick Generating Station,. l 4

1994.

l- !

l C -1 I

u - ..

g 4

4 g

Concentrations of Gamma Emitters in Sediment Samples .l Table C-IV.1 -

Collected in the Vicinity of Limerick Generating Station, j i

1994. -i

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

1994.-

- p t

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,1994. )

Table C-V.3 ' Concentrations of Gamma Emitters in Air Particulate :;

Samples Collected in the Vicinity of Limerick Generating Station,' 1994. l Table C-VI.1 Concentrations of I-131 in Air lodine Samples Collected in.

the Vicinity of Limerick Generating Station,1994.

5

-Table C-Vil.1 Concentrations of I-131 in Milk Samples Collected in the s Vicinity of Limerick Generating Station,1994.

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

.i 1994.

' Monthly TLD Results for Limerick Generating Station, Table C-Vill.1' jl 1994.

Table C-Vill.2 Quarterly TLD Results for Limerick Generating Station,.

1994. _

i Table C-Vill.3 Mean TLD Results for the Limerick Generating Station Site l Boundary, Middle and Outer Rings,1994. j i

Summary of the Ambient Dosimetry Program for Limerick j Table C-Vill.4 j Generating Station,1994.

- .l Summary of Collection Dates for Samples Collected in the . 4' Table C-IX.1 .j Vicinity of Limerick Generating Station,1994.

1 1

t 1

C - il i

. _ u . _ . _ _ _ _ . . . . _. .. . _ - _ _______. __ -

I i

FIGURES i

Mean Monthly insoluble Gross Beta Concentrations !

Figure C-1 in Surface Water Samples Collected in the Vicinity of j .

LGS,1982-1994.

Figure C-2 Mean Monthly Soluble Gross Beta Concentrations in.

Surface Water Samples CoIIected in the Vicinity of ' -!

LGS,1982-1994. l i

Figure C-3 Mean Monthly Insoluble Gross Beta Concentrations ;

in Drinking Water Samples Collected in the Vicinity of .i LGS,1982-1994. _

l Figure C-4 Mean Monthly Soluble Gross Beta Concentrations in' Drinking Water Samples Collected in the Vicinity of LGS,1982-1994.

l Figure C-5 Mean Annual Cs-137 Concentrations in Fish Samples Collected in the Vicinity of LGS,1982-1994. l

-i Figure C-6 Concentrations of Cs-137 in Sediment Samples j Collected in the Vicinity of LGS, 1982-1994.

Figure C-7 Mean Weekly Gross Beta Concentrations in Air Par- .l ticulate Samples CoIIected in the Vicinity of LGS, ;

1994.

Figure C-8 Mean Monthly Gross Beta Concentrations in Air Par-ticulate Samples Collected in the Vicinity of LGS, .

1982-1994.

Figure C-9 Mean Monthly Ambient Gamma Radiation Levels in the Vicinity of LGS, 1982-1994.' :

1 9

I C - lii

. - - - . - , --. .--.am , . . - - , - - ,-,.,- - m- r. --. ,- - ..,,. --,,--+y--

a l

TABLE C-I.1' CONCENTRATIONS OF GROSS BETA INSOLUBLE IN SURFACE NATER SAMPLEl COLLECTED IN THE VICINITY OF LINERICK GENERATING fTATION, 1994 -!

RESULTS IN UNITS OF'PCI/ LITER s 2 SIGNA i 10F2 1351 2481 COLLECTION l

. PERIOD

.......... ............. ............. ............. j a 0.4 0.8 s 0.5 0.8 a 0.5 i JAN 94 0.1 0.0 e 0.5 FEB 94 0.2 2 0.5 '0.3 a 0.5 [

~

0.3 a 0.5 . 1.8 a 0.6 0.0 s 0.4 MAR 94 0.3 s 0.5 1 APR 94 0.3 s 0.5 0.3 a 0.5 !

0.6 s 0.5 0.6 s'0.5 0.6 s 0.5 MAY 94 0.3 s 0.7 JUN 94 0.4 s 0.7 6 s1 '

2 0.7 s 0.8 ~.0.2 a 0.6 JUL 94 1.5 1.8 1.1 s 0.6 AUG 94 1.6 s 0.6 1.6 s 0.6 I 0.2 a 0.7 4 a1 0.2 s 0.7 '

SEP 94 0.8 s 0.5. ,

OCT 94 1.1 2 0.5 0.3 a 0.4 :

2 0.5 0.2 a 0.5 0.7 2 0.5 NOV 94 0.0 ;

s 0.5 0.2 a 0.5 0.4 s 0.5 DEC 94 0.3 r a 1.1 1.5 s 3.6 0.4 s 0.8 !

MEAN 0.6 I

TABLE C.I.2 CONCENTRATIONS OF GROSS BETA SOLUBLE IN SURFACE WhTER 1994 SAMPLES COLLECTED IN TNE VICINITY OF LIMERICK GENERATING STATION, :

RESULTS IN UNITS OF PCI/ LITER e 2 SIGMA i 10F2 1381 2451 COLLECTION ,

PERIOD

.......... ............. ............. ............. i 3.7 s 1.0 4 a1 4 a1 l JAN 94 3 s1 FEB 94 3.0 s 1.0 3 a1 2.7 s 0.8 3.7 s 1.0 6 s1 MAR 94 6 s1 !

3.8 s 0.9 4.0 a 1.0 i APR 94 6 e1 MAY 94 8 s1 4 s1 l s1 4 e1 6 e2 JUN 94 8 9 s2 !

JUL 94 6 's 1 6 s1 l 7 s1 5 s1 5 s1 AUG 94 3 s1 SEP 94 5 a1 4 a1 !

7 e1 6 a1 5 s1 OCT 94 4 s1 !

NOV 94 10 e1 5 s1 2.7 2 0.9 5 a1 l DEC 94 7 s1 i 5.9 s 4.6 4.3 e 2.1 5 a3 NEAN I I

t' TABLE C.I.3 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED{

1994 IN THE VICINITY OF LIMERICK GENERATING STATION, i RESULTS IN UNITS OF PCI/ LITER s 2 SIGMA 10F2 1331 2481 i COLLECTION 1 PERIOD I 70 a 90 50 a 90 100 a 90 JAN-MAR 94 a 100 0 s 100 '

APR-JUN 94 0 e 100 0 s'90 a 90 20 s 100 -20 JUL-SEP 94 -20 s 100 110 s 100 130 s 100 120 OCT-DEC 94 40 e 120 50 e 110 50 e 130 NEAN C-1

TAILE C-I.4 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES 1994 COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, RESULTS IN UNITS OF PCI/ LITER 2 SIGMA l

CO-58 FE-59 CO-60 ZN-65 COLLECTION K-40 MN-54 STC PERIOD ----------- ------- ----- -------------

JAN 94

--~~~--------

-1 2 6

~~

0.3 t 0.4 -------------

0.5 0.5 -0 2 1 -0.1 0.4 0.3 0

2 0.9 1

10F2 -0.1

0.6 0.2 2 0.6 0 m1 0.6 2 0.6 FEB 94 -10 2 10 e1 0.4 0.4 0.0 2 0.8 6 0.2 2 0.4 0.0

0.4 1 MAR 94 0 1 0.4 2 0.6 1 2 1 l 0.7 0.6 0.0 z 0.6 1 APR 94 0 2 10 a1 0.1 2 0.6 0

1 0.0 t 0.5 -0.1 2 0.6 -1 MAY 94 11 2 7 1 e1 -0.1 2 0.5 0 2 1 41 2 7 0.0 2 0.5 0.0 2 0.6 JUN 94 -0.3 0.5 0 2 1 0.5 2 0.5 0 e1 JUL 94 9 2 6 0.1 2 0.5 s 0.5 0 *1 2 0.4 -0.1 t 0.4 -0.5 2 0.9 0.2 AUG 94 3 2 7 -1.0 2 0.3 0.2 2 0.7 0.3 s 0.3 -0.1 0.3 0.4 2 0.7 -0.1 SEP 94 4 2 3 2 1 -0.3 0.5 0 e1 0.1 a 0.5 0.2

0.6 1 OCT 94 -11 2 7 2 0.6 1 1 0.3 2 0.6 1 s1 61 t 9 C.1 2 0.6 -0.2 2 0.9 NOV 94 0.0 2 0.4 0.0 2 0.9 0.1 2 0.4 1.1 DEC 94 1 2 6 0.1 1 0.4 0.3 a 1.2 0.2

0.6 0.3 2 0.8 9 2 41 0.1 2 0.8 0.0 a 0.4 MEAN

-1 *1 0.1 2 0.5 -1

1 14 2 6 0.0 0.5 -0.5 e 0.5 1 13B1 JAN 94 2 0.6 0.2 2 0.6 -1 2 1 0.8 s 0.6 1 FEB 94 18 2 7 -0.1 0.0 2 0.4 0.7 e 0.8 2 0.4 0.0

0.4 0.2 0.0 MAR 94 -24 a8 0.1 0.2 0.5 0 s1 0.3 2 0.5 -0.2 2 0.6 -1 2 1 APR 94 10 6 0.2 2 0.5 -0.2 2 0.9 e 0.4 -0.2 s 0.4 0.1 0.9 MAY 94 -12 s6 0.3 0.3 2 0.5 1 2 1

-0.1 2 0.6 0 1 JUN 94 26 m7 0.1 2 0.5 0 2 1 -0.1 2 0.5 -1 2 1 0 10 0.2 2 0.5 -0.1 2 0.5 2 0.9 JUL 94 2 0.4 0.1 2 0.4 -0.1 2 1.0 -0.1 2 0.4 0.1 AUG 94 -12 9 0.4 0.1 2 0.4 0.4 s 0.7 0.1 2 0.4 0.0 2 0.4 -0.2 2 0.8 SEP 94 12 2 5 0 2 1 0.3 2 0.5 0 1

-40 10 0.0 2 0.5 -0.2 2 0.5 OCT 94 0 1 0.5 2 0.6 1 2 1

-10 10 0.1 2 0.6 0.0 2 0.6 1 NOV 94 -0.3 2 0.9 0.4 e 0.5 0 2 2 6 0.2 e 0.4 -0.4

0.4 DEC 94

-0.2 2 0.8 0.2 2 0.5 0.3 2 1.1

-1 2 38 0.1 2 0.3 -0.1- 2 0.4 MEAN 0 e1 0.4 e 0.5 0

1

-13 t 7 0.2 2 0.5 -0.1 2 0.5 24s1 JAN 94 -0.3 0.4 -0.4 0.7 0.2 a 0.4 0.0 1 0.8 FEB 94 8 2 5 0.0 2 0.4 0.9 2 0.9 0.2 2 0.5 1.2 2 0.9 -0.1 2 0.4 MAR 94 -12 2 6 0.0 2 0.4 0 2 1 0.5 -0.4 e 0.5 -1 1 0.2 2 0.5 APR 94 -24 2 9 -0.1 0.3 s 0.5 2 s1 0.4 2 0.5 r o .1 e 0.5 0 2 1 MAY 94 -30 t 10 0.0 2 0.4 0.4 2 0.7 2 0.3 0.0 2 0.4 0.0 2 0.8 JUN 94 -2 a5 0.2 0.0 e 0.7 -0.1 2 0.3 0.3 2 0.7 11 2 4 0.2 2 0.3 0.2 a 0.3 JUL 94 -0.1 0.5 0 2 1 0.5 2 0.5 1

1 AUG 94 -10 2 10 0.0 2 0.5 0.4 0.1

0.9 2 0.4 -0.2 2 0.4 0.3 2 0.9 0.4 SEP 94 -9 2 6 0.0 2 0.5 0 2 1 2 0.5 0.0 2 0.5 0 1 0.0 OCT 94 0

10 0.1 1 2 1 2 0.4 -0.2 2 0.4 0.0 2 0.9 0.5 2 0.5 NOV 94 -5 2 5 0.3 0 e1 2 0.6 -0.3 2 0.6 0 g 1 0.2

0.6 DEC 94 -70 i 10 0.3 0.1 2 0.9 0.2 2 0.4 0.4 2 1.2

-13 2 43 0.1

0.3 -0.1 2 0.4 MEAN C- 2 .

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

TAOLE C-I.4 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES 1994 COLLECTED IN THE VICINITY OF LIMERICK CENERATING STATION, RESULTS IN UNITS OF PCI/ LITER 2 2 SIGMA CS-137 BA-140 LA-140 ZR-95 NB-95 CS-134 COLLECTION STC PERIOD

--------------- .. 0.2 0.9 0.4 2 0.5 0.1 a 0.5 .....--.---.-

0.1

0.5 ----------

1 e2 -- ....------.--

2 0.2

-0.7 2 0.8 2 0.8 10F2 JAN 94 0.6 0.6 0.3 a 0.6 0.8 2 0.6 -1 FEB 94 -1 2 1 2 0.4 0 e2 -0.1 2 0.9

-0.1 2 0.4 0.2 a 0.4 0.5 MAR 94 0.3 s 0.9 0.3 a 0.6 0 2 3 -1 e1 0.6 2 0.7 -0.1 0.7 e1 APR 94 2 2 1 0.5 a 0.6 2

3 0 s1 0.5

0.6 0.1

0.6 0 1 MAY 94 0 0.5 a 0.5 -2 a3 2 1 0.8 2 0.6 0.2 2 0.5 0.1

0.9 JUN 94 1

-0.1 t 0.5 0.4 a 0.5 1 a2 1 2 1 0.6

0.5 e2 -0.7 2 0.9 JUL 94 0.3 2 0.5 0.3 2 0.5 0.1

0.5 -1 AUG 94 1 2 1 0.2 a 0.3 1 a2 -0.6 2 0.7 0.3

0.7 0.1 2 0.3 0.3 2 0.3 0 2 2 SEP 94 0.5 0.3 a 0.6 0 2 4 2 1 0.6 0.6 0.3 0

1 OCT 94 2 0.6 0.8 0.6 1 3 0 e1 0.1 0.6 -0.4 -0.7 2 0.8 NOV 94 e 0.4 0.0 0.4 -1 2 2 0.8 2 0.8 0.3 2 0.4 0.0 DEC 94 0.4 m 0.5 0 t 2 -0.4 2 0.8 2 1.7 0.4 e 0.5 0.1 2 0.4 MEAN 0.6 0.5 0 e2 0.3 0.8 0.1 2 0.5 -0.1 2 0.5 0.1 JAN 94 0 2 1 -1 2 2 0.1 2 0.9 13B* 0.8 2 0.6 -0.6 t 0.6 0.2 2 0.6 i

FEB 94 2 1 2 0.4 1 2 0.3 0.8 2 0.4 -0.1 0.5 -0.5 MAR 94 1.5 2 0.9 0.6 0 3 0 1 0.6 2 0.6 0.3 2 0.6 0.1 2 0.6 APR 94 1 1

0.5 1 2 2 0.2 2 0.8

-0.1 2 0.5 0.0 2 0.4 0.3 MAY 94 -0.2 2 0.9 2 0.6 3 2 4 0 1

-0.1 2 0.6 0.1 0.6 0.0 JUN 94 2 2 1 2 2 0 1 1 0.5 2 0.5 -0.2 2 0.5 P.4 0.5 2 0.7 JUL 94 1 t5 e 0.5 -1 2 2 -0.1 2 0.9 0.7 e 0.5 -0.1 2 0.5 0.0 0.8 AUG 94 0.1 0.0 2 0.4 -1 t 2 2 0.7 0.1 a 0.4 -0.4

0.4 0 e1 SEP T4 0.3 -0.4 2 0.5 -3 2 3 2 1 0.5

0.5 0.0 2 0.5 1 1 OCT 94 -1 0.0 0.6 -2 2 2 2 1 0.7 s 0.6 -0.2 2 0.6 2 0.9 NOV 94 2 0.1 2 0.5 0 e2 0.8 0.7 2 0.9 0.5 2 0.5 0.3 e 0.5 DEC 94 2 0.6 0 3 0.2 0.6 0.4 0.6 -0.1 2 0.5 0.1 MRAN 0.8

1.9 e 0.5 0 2 2 -0.4 0.8 0.3 a 0.5 0.0 0.5 0.5 24S1 JAN 94 1.0 2 0.9 2 0.4 -1 2 1 0.3 2 0.6 0.1 2 0.4 0.3 0.4 0.2 FEB 94 -0.3 2 0.8 0 2 -0.3

0.9 0.4 0.5 0.3 e 0.4 -0.1 * 'L 9 0.6 0.9 m 0.5 0 2 1 MAR 94 2 1 0.0 2 0.5 0.2 0.6 0.6 -1 2 3 0.9 APR 94 1 0.0 2 0.5 0 2 2 -0.3 0 2 1 0.8 e 0.5 -0.3

0.6 0.3 2 0.9 MAY 94 t 0.4 -0.2 0.3 0.2 2 0.3 0

2 JUN 94 0.0 2 0.8 -0.3 -1 2 2 --0.2 2 0.7 0.0

0.3 0.1 2 0.3 0.4 2 0.3 JUL 94 0.0 2 0.7 0.4

0.5 1 2 -0.3 2 0.9 2 1 0.4 2 0.5 0.0 2 0.5 -0.4

0.8 AUG 94 0.4 0.5

0.5 -1 2 2 1.3 a 0.9 0.4 0.4 0.1 1 2 1 SEP 94 -0.4 2 0.5 0.2

0.5 2 2 4 OCT 94 1 a1 0.5 a 0.6 0 2 2. 0.0 2 0.8 0.3 2 0.4 0.1

C.5 0.1 2 0.4 NOV 94 0.8 a 0.9 2 0.6 0 2 3 -0.1 2 0.9 0 2 1 0.9 0.6 -0.7 2 0~ 0.4 DEC 94 0

2 -0.1 t 0.7 MEAN 0.6 e 1.3 0.3 t 0.7 0.0 2 0.6 0.3

0.4 C- 3

c TA2LE C-I.4 CCNCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES 1994 COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, RESULTS IN UNITS OF PCI/ LITER 2 2 SICMA COLLECTION RA-226 TM-228 STC PERIOD

-10 t 10 0.2 2 0.9 10F2 JAN 94 0.9

-20 .2 9 1.2 FEB 94 0.7 2 0.8 MAR 94 10 2 10

-10 2 10 -0.4 i 0.9 APR 94 2 0.9 MAY 94 0 i 10 2.4

-16 2 8 1.5 2 0.8 JUN 94 2 0.9 JUL 94 -9 e8 1.1

-20 10 -0.4 2 0.8 AUG 94

0.6 SEP 94 7 2 7 0.9 OCT 94 -10 2 10 -2 e1 10 e 10 1.4 e 0.9 NOV 94

0.8 DEC 94 8 2 9 1.8 NRAN -6 a 22 0.7

2.6 5

8 0.0 0.7 13B1 JAN 94 e 0.9 FEB 94 1 9 -0.3

-9 2 7 -0.6 e 0.6 MAR 94 s1 APR 94 -10 2 10 -1

-20 2 10 1.4 2 0.8 MAY 94 a 0.8 JUN 94 -11

8 0.1 5 a8 -0.3

0.7 JUL 94 2 9.7 AUG 94 -9 2 8 2.8

-4 2 5 -1.5

0.5 SEP 94 2 0.7 OCT 94 4 2 8 -0.4

-11 2 9 0.2 2 0.9 Nov 94 a 0.8 DBC 94 -18 2 9 -2.8

-7 2 18 -0.2 2.7 MEAN 24S1 JAN 94 -20 a 10 -2.0 2 0.9

-2 2 8 0.2 2 0.7 FEB 94 2 0.8 MAR 94 0 2 10 -2.0

-14

9 0.3 2 0.7 u APR 94 2 0.8' MAY 94 7

9 1.4

-3

7 0.9 0.6 JUN 94 0.6 JUL 94 0 s7 -1.3

-10 a8 -0.9 2 0.7 AUG 94 a 0.8 SEP 94 -15 a9 -0.5

-14 e8 -0.2 2 0.7 OCT 94

-9 6 -1.5 2 0.6 Nov 94

0.9 DEC 94 -10 2 10 2.3 MEAN -7 2 16 -0.3

2.7 c_4 * .

. - - - , . , -, -<ew-.-- nv .e..w. ..,-r

% y ...-ww+ -

_- ,s---..--e...-. - tw - r - -- - -- ,, ~ - - . , .. . w, , -o.

TABLE C-II.1 CONCENTRATIONS OF GROSS BETA INSOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 RESULTS IN UNITS OF PCI/ LITER s 2 SIGMA 15F7 16C2 28F3 COLLECTION 13H2 15F4 o

PERIOD

.......... ............. ............. 0.1 a 0.4 0.0 a 0.4 0.5 s 0.5 0.2 a 0.4 JAN 94 2.0 s 0.6 -0.2 s 0.5 0.0 s 0.5 -0.2 s'O.5 0.7 0.5 FEB 94 0.2 s 0.5 0.0 a 0.4 s 0.5 0.5 s 0.5 0.1 a 0.4 0.9 s 0.5 MAR 94 0.7 0.5 0.3 s 0.5 APR 94 0.2 a 0.5 0.0 s 0.5 0.0

0.5 0.2 0.4 e 0.5 0.5 s 0.5 0.0 s 0.4 MAY 94 0.7 a 0.5 0.7 s 0.5 2.0 s 0.8 3.7 s 0.9 2.2 's 0.8 JUN 94 4.4 s 0.9 0.3 a 0.7 0.3 a 0.6 1.7 s 0.7 0.0 s 0.6 JUL 94 0.6 s 0.7 0.4 s 0.6 0.0 a 0.4 1.0

0.5 0.2 a 0.5 AUG 94 1.6 2 0.6 0.5

0.5 0.5 -0.3 s 0.4 -0.2 s 0.5 0.0 s 0.5 SEP 94 0.0 s 0.5 0.1 0.2 a 0.4 0.3 s 0.4 0.3 a 0.4 OCT 94 0.6 s 0.4 0.4 a 0.4 0.5 s 0.6 0.4 s 0.6 0.4 s 0.6 NOV 94 1.0 s 0.6 0.6 s 0.6 0.0 s 0.5 0.4 s 0.5 0.0 s 0.5 DEC 94 0.2 a 0.5 -0.2 2 0.4 0.2 s 1.2 0.8 e 2.0 0.3 a 1.3 MEAN 1.0 a 2.4 0.3 s 0.6 TABLE C-II.2 CONCENTRATIONS OF GROSS BETA SOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 RESULTS IN UNITS OF PCI/ LITER z 2 SIGMA 15F4 15F7 16C2 2BF3 COLLECTION 13H2 PERIOD

.......... ............. ............. ............. 4 s1

............. 3 e1 6 s1 JAN 94 4 a1 8 e1 4 s1 s1 4 s1 4 e1 3 s1 FEB 94 9 a1 3 e1 4 s1 a 0.9 4.0 s 1.0 5 MAR 94 3.3 4 s1 4.0 s 1.0 APR 94 5 2 1 5 s1 4 s1 s1 5 s1 3.0 s 1.0 3 2 1 MAY 94 4 s1 5 s2 6 *2 a1 5 s1 6 JUN 94 7 a2 5 5 s1 5 s1 JUL 94 6 e1 5 2 1 5 s1 a1 5 s1 4 a1 4 a1 AUG 94 8 s1 5 5 *2 s2 7 s2 5 a2 4 a2 SEP 94 6 6 s1 6 s1 OCT 94 8 s1 9 s1 7 a1 1 6 a1 6 s1 5 e1 NOV 94 5 s1 6 3 s1 6 s1 4 s1 2.0 a 1.0 DEC 94 2.9 s 0.9 5 e2 4.1 2 2.8 4.6 s 2.2 MEAN 5.7 s 4.0 5.8 a 3.1 l l l

l

. TABLE C-II.3 CONCENTRATIONS OF TRITIUM IN DRINKING MATER SAMPLES COLLECTED IN THE VICINITY OF LINERICK GENERATING STATION, 1994 RESULTS IN UNITS OF PCI/ LITER a 2 SIGMA 15F4 15F7 16C2 28F3 COLLECTION 13H2 PERIOD 60

90

............. 50 a 90 -30 e 90 JAN-MAR 94 70 s 90 40 a 90

-10 s 100 0 s 100 0 a 100 APR-JUN 94 0 s 100 C z 100 50 s 90 -20 a 90 JUL-SEP 94 80 a 100 -20 s 90 70 s 90 140 s 100 10 s 90 80 2 90 120 s 100 OCT-DEC 94 160 s 100 30 s 80 40 s 70 20 e 140 MEAN 70 2 160 30 s 160 C-5

TABLE C-II.4 CONCBNTRATIONS OF GAMWA EMITTERS IN DRINKING MATER SAMPLES COLLECTED IN E VICINITY OF LIBERICK GENERATING STATION. 1994 RESULTS IN UNITS OF PCI/1. ITER e 2 SI(Nik CO-50 FN-59 Co-60 EN-65 COLLECTIDW K-40 MM-54 '

PERIOD STC '

..... ............... 0 s1 0.5 s 0.6 0.0 e 1.0 0 e6 -0.2 a 0.5 0.1 a 0.5 f 13H2 JAN 94 -0.2 s 0.5 0 s1 -0.4 s 0.5 0 a1 FEB 94 -8 a7 0.5 a 0.5 0.0 s 0.4 0.3 s 0.8 . I 13 s5 0.3 s 0.4 -0.4 a 0.3 0.6 s 0.0 MAR 94 a 0.4 -0.2 a 0.9 0.1 s 0.5 -0.6 s 0.9 APR 94 9 a6 0.3 a 0.4 -0.2

-0.2 s 0.5 1 e1 -0.1 a 0.5 1 e1 )

MAY 94 -9 s7 0.1 a 0.5 0.3 s 0.8 a 0.4 0.0 s 0.4 0.0 a 0.9 0.2 s 0.4 J JUN 94 -2 s6 0.4 s 0.6 0 e1

-20 a9 0.2 a 0.5 0.3 a 0.5 0 e1 2.4 ' l JUL 94 -0.3 a 0.9 0.2 a 0.5 -0.2 s 0.9 5 a7 -0.7 e04 -0.1 a 0.4 AUG 94 s 0.5 0 a1 0.4 a 0.5 1 e1 REP 94 -2 a6 0.1 a 0.5 0.5 e1 6 s 0.5 0 e1 -0.2 a 0.4 0 OCT 94 -5 s6 0.4 s 0.4 0.3 0.1 s 0.5 -1 e1 0.2 s 0.5 0 e1 NOV 94 -9 s7 0.5 a 0.5 a1 a9 0.0 a 0.5 -0.1 a 0.6 0 a1 0.7 s 0.5 2 Dec 94 -11 s 0.7 0.3 .a 1.5 0.3 a 1.3 MEAN -5 e 20 0.1 s 0.7 0.0 s 0.5 0.0

-0.7 e 0.6 0 e1 0.0 s 0.6 0 s1 15F4 JAN 94 it e8 0.1 s 0.5 0 a1 0.0 s 0.5 0 s1 0.3 a 0.5 FEB 94 0 e6 0.2 s 0.5 s 0.5 -1 s1 l a 10 0.3 a 0.5 0 a1 0.2 MAR 94 -10 0.1 a 0.5 0.3 s 0.8 -0.2 s 0.4 0.3 a 0.8 i s5 -0.1 a 0.2 -0.1 s 0.4 APR 94 -7 0.2 a 0.4 0.3

0.0 0.1 a 0.4 -0.2 s 0.0 MAY 94 -3 a5 0.1 a 0.4 e1 s 0.4 -0.3 a 0.5 0 e1 0.7 s 0.5 0 JUN 94 -2 s6 0.0 s 0.9 0.2 a 0.4 -0.4 a 0.9 JUL 94 -2 s5 0.4 s 0.4 0.2 a 0.5 -0.1 0.0 a 0.8

-0.2 a 0.4 -0.6 s 0.0 0.1 s 0.4 AUG 94 0 e5 -0.1 a 0.3 0.6 s 0.8 0.1 s 0.4 0.5 s 0.9. 0.2 a 0.4 SRP 94 3 s5 0.1 s 0.4 a 0.4 0.3 s 0.0 s 0.4 -0.1 a 0.4 0.0 s 0.9 0.1 OCT 94 -10 s4 0.0 s 0.6 0 a1 0.2 a 0.6 0 a1 40 s0 0.3 a 0.6 0.0 NOV 94 a1 -0.2 s 0.6 0 e1 Dsc 34 -1 s7 0.3 a 0.5 0.2 s 0.6 1 0.1 s 0.7 0.1 s 0.5 -0.1 s 0.9 MEAN 2 a 28 0.1 s 0.3 -0.1 a 0.5 0.3 a 0.6 1 a1 0.0 a 0.6 2 e1 15F7 JAN 94 -30 a 10 -0.2 a 0.5 s 0.9 0.3 s 0.5 -0.5

0.9 a5 -0.2 s 0.4 0.0 a 0.4 0.3 j FEB 94 -2

-0.2 s 0.4 0 e1 -0.3 a 0.5 -0.5 s 0.9 '

MAR 94 ~7 a6 0.2 a 0.4 a4 0.0 s 0.3 0.2 a 0.3 -0.1 a 0.6 -0.1 a 0.3 -0.1 s 0.6 APR 84 5 s 0.6 0 s1 0.5 s 0.6 -1 a1 MAY 94 0 s 10 0.2 a 0.5 -0.4 s 0.8 s 0.4 -0.1 a 0.9 0.2 a 0.4 0.2 0 a5 0.3 a 0.4 0.0 JUN 94 s 0.3 0.5 s 0.0 0.1 a 0.4 0.9 s 0.8 e5 -0.1 s 0.3 0.0 JUL 94 -4

-0.2 a 0.3 0.5 s 0.7 0.2 a 0.3 0.7 s 0.5 AUG 94 10 a4 0.2 s 0.3 0.5 s 0.7

1 s 0.3 -0.3 a 0.4 0.3 s 0.8 0.0 s 0.4 SEP 94 -1 a5 a 0.8 0.3 a 0.3 0.1 a 0.7 s4 0 1 a 0.3 -0.2 a 0.3 -0.1 OCT 94 4 -0.1 a 0.5 1 s1 a7 .5 a 0.5 -0.4 s J.5 0 e1 Nov 94 -3

+ 0.6 1 a1 0.1 s 0.5 1 s1 DEC 94 6 ae 0.1 a 0.5 0.0 a 0.4 0.0 s 0.9 0.1 s 0.4 0.4 e 1. 6 NEAN -2 e 20 0.1 s 0.4 -0.1

-0.1 a 0.9 0.0 s 0.4 -0.7 s 0.9

-5 a5 0.1 a 0.4 -0.1 a 0.4 16C2 JAN 94 a 0.5 1 s1 0.0 a 0.5 0 e1

-20 a9 0.0 s 0.5 -0.2 FBB 94 -0.1 s 0.3 0.2 s 0.7 0.1 s 0.4 -0.6 s 0.7 MAR 94 4 s4 0.2 a 0.3 a 0.5 0 a1

-5 s0 0.4 s 0.5 0.4 s 0.5 0 s1 0.1 APR 94 a 0.5 0 e1 0.0 s 0.4 0 a1 MAY 94 -35 s0 0.4 a 0.4 -0.2 0.1 a 0.6 -1 a1 e 10 s 0.6 -0.4 s 0.6 0 a1 JUN 94 -10 -0.2 0.0 s 0.9 -0.4 s 0.4 -0.1 a 0.9

-19 e7 0.0 s 0.4 =0.2 a 0.4 JUL 94 -0.3 a 0.4 -0.2 a 0.9 -0.1 a 0.4 0.3 s 0.8

-20 e1 0.3 a 0.4 AUG 94 0.2 -0.4 s 0.5 0 e1 0.1 a 0.5 1 e1 ssp 94 56 e7 s 0.5 0 e1 0.5 s 0.4 -0.1 a 0.8 27 a7 0.1 s 0.4 -0.1 a 0.5 a1 OCT 54 -0.1 s 0.4 0.3 a 0.9 =0.3 a 0.4 2 Nov 94 -3 a5 0.3 a 0.4 s 0.6 3 a1 5 s8 0.0 s 0.5 0.0 s 0.5 e a1 0.6 DEC 94

-0.1 s 0,4 0.4 s 0.6 0.0 s 0.6 0.3 e 2.3 MEAN -7 a 47 0.1 a 0.4 0.2 s 0.0 -0.1 a 0.4 0.9 s 0.7

-4 s6 0.1 s 0.4 -0.1 a 0.4

28F3 JAN 94 -0.2 a 0.4 0.5 s 0.9 0.5 s 0.5 0 a1 FEB 94 4 a6 -0.2 s 0.4 a1 0.1 a 0.5 -0.2 s 0.5 1 a1 0.6 s 0.5 0 MAR 94 8 s6 -1 s1 0.1 s 0.4 -0.2 a 0.9 9 6 0.4 a 0.4 -0.1 a 0.4 APR 94 0.4 s 0.4 0.2 s 0.9 0.5 s 0.4 0.5 t 0.9 MAY to 4 a5 0.0 a 0.4 e1 s 0.6 0.0 s 0.6 0 a1 0.2 s 0.5 1 JUN 94 15 a7 0.4 0.1 s 0.9 0.3 a 0.4 0.1 a 0.9 14 e5 0.0 s 0.4 0.0 s 0.4 JUL 94 a 0.4 0 a1 -0.2 s 0.5 -1 e1 1 a5 0.3 s 0.4 -0.3 e1 AUG 94 -0.1 a 0.5 0 a1 0.2 s 0.5 1 SEP 94 6 e8 -0.1 s 0.5 -0.5 a 0.9

-0.4 s 0.5 0 s1 0.5 s 0.5 OCT 94 -11 s5 0.3 s 0.4 -1 e1

-0.2 a 0.6 0 s1 0.3 s 0.6 Nov 94 25 s0 0.2 a 0.6 s 0.4 0.0 a 0.4 0.1 a 0.9 0.1 s 0.4 1.1 a 0.0 DEC 94 2 a5 0.0 0.2 a 0.8 0.2 s 0.5 0.3 s 1.4 4 e 21 0.1 a 0.4 -0.1 s 0.4 NEAN I

l l

C-6

i

' TABLE C-!!.4 COIB SNTRATIONS OF GAna8A EMITTERS IN 90!!NKING NATER SAMPJJS COLLECTED IN TMS VICINITY OF LZWRICE GENERATING STATION,1994 i

RESULTs IN UNITS OF PCZ/ LITER s 2 S!eth CS-137 BA-140 LA-140 RR-95 MD-95 Cs-134 COLLECTION PERIOD STC JAN 94

-1 a1 0.5 a 0.5 0.2 a 0.5 .............

0.5 a 0.5 .............

1 a2 a2

-e.1 0.7 s 0.9 s 0.0 13N2 0.2 s 0.5 0.1 a 0.5 0 FEB 94 0 e1 0.2 a 0.5 e2 0.2 a 0.8 s 0.4 0.2 a 0.4 -1 MkR 94 0.5 s 0.0 0.2 a 0.4 0.1 a 0.5 0 a2 -0.1 a 0.9 s 0.5 0.2 a 0.4 0.4 APR 94 0.3 s 0.9 0.6 a 0.5 0.4 s 0.5 0 a2 0.3 s 0.9 0 a1 0.4 s 0.5 0.1 1 s1 MAY 94 0.2 s 0.4 0.1 s 0.4 0 a2 JUN 94 0.5 s 0.0 -0.7 a 0.4 a3 0 e1 0.2 a 0.5 0.1 a 0.5 -1 JUL 94 0 a1 0.7 s 0.5 0 a2 0.2 a 0.8 a 0.4 0.1 a 0.5 0.1 s 0.5 ADO 94 0.1 s 0.9 0.1 0.3 a 0.5 2 a3 1 s1 a1 0.7 s 0.5 0.5 s 0.5 s1 SEP 94 1 0.2 s 0.4 -1 a3 1 s 0.9 0.3 s 0.5 0.0 a 0.5. a 0.9 OCT 94 -0.2 0.0 s 0.6 0 a2 0.2 2 0.5 0.1 s 0.5 WDV 94 1 a1 0.5 a 0.6 0.0 a 0.6 0 s3 0.3 s 0.9 ,

DEC 94 2 a1 0.7 s 0.5 0.1 s 0.3 0.2 s 0.4 0 a2 0.3 a 0.8 MEAN 0.2 e 1.5 0.3 a 0.9 0.1 a 0.7 =0.1 s 0.6 1 s2 0.6 s 0.9 15F4 JAN 94 2 s1 0.5 s 0.6 0.1 s 0.5 -2 a2 0.6 s 0.0 0.1 s 0.5 0.4 s 0.5 0.5 F3s 94 1 a1 a 0.5 0.7 s 0.5 1 e2 0.5 s 0.0 MAR 94 0 a1 0.7 a 0.5 0.1 a 0.4 1 s2 0.5 s 0.0 l 0.3 4

0.3 a 0.4 -0.4 I APR 94 0.4 s 0.7 s 0.4 a 0.4 0.2 a 0.4 al a2 0.4 s 0.7 MAY 94 0.4 s 0.0 0.3 a 0.4 0.1 1 a3 0 e1 0 s1 0.3 a 0.5 0.1 a 0.5 0.5 s 0.5 0.5 e 0.9 ,

JUN 94 0.4 a 0.5 0.0 s 0.5 0 a2 0 a1 -0.1 a 0.5 0.1 JUL 94 a 0.4 0.3 a 0.4 0 a2 a 0.7 -

AUG 94 0.3 a 0.7 0.1 a 0.4 0.4 a 0.4 1 e2 0 s1 s 0.4 0.1 a 0.4 0.1 SEP 94 0.5 s 0.0 0.1 a 0.4 0.0 a 0.4 1 e2 1 a1 0.2 s 0.0 0.4 a 0.4 0.2 0.0 s 0.9 OCT 94 0.2 s 0.6 0.4 a 0.6 2 s2 Mov 94 0 *1 0.1 a 0.5 s 0.6 2 e3 0 41 s 0.6 0.3 a 0.6 0.1 DBC 94 -1 e1 0.5 0.2 a 0.6 0 s2 0.1 a 0.9 0.2 a 1.4 0.3 s 0.5 0.1 a 0.5 MEAN y -

-0.7 e 0.5 0.3 a 0.5 0 a2 0.4 s 0.7 35F7 JAN 94 0 s1 0.5 s 0.6 a 0.5 0.3 a 0.4 0 e1 0.0 s 0.7 0.5 s 0.0 0.3 a 0.4 0.0 s 0.9 I PBB 94 0.0 s 0.5 0.4 a 0.5 1 a2 0.4 MAR 94 0.7 a 0.9 -0.2 a 0.5 0.1

0.3 0.3 a 0.4 1 e2 0.0 a 0.6 l

?

APR 94 0.0 s 0.7 -0.1 a 0.3 0.4 a 0.6 -1 e3 0 s1 l 1 a1 0.6 s 0.5 0.3

0.6 0 a1 MAY 94 0.0 s 0.4 -0.2 a 0.4 2 a2

-0.4 a 0.9 0.2 a 0.4 a2 .; 1 s 0.8 JUN 94 0.3 a 0.4 0.1 s 0.4 0 JUL 94 0.2 a 0.7 0.5 s 0.4 s 0.3 0.3 s 0.3 0 s1 0.4 a 0.6 0.1 a 0.7 0.2 a 0.3 0.0 0 a1 AUG 94 a 0.4 0.0 a 0.4 0.2 s 0.4 0 s2 SEP 94 0.2 s 0.0 0.3 s 0,3 2 s2 -0.6 s 0.9 0.2 a 0.4 0.1 s 0.3 0.1 OCT 94 0.0 s 0.7 0.6 s 0.5 -2 s2 0 e1 Nov 94 1 s1 0.3 a 0.5 0.4 s 0.6 s3 0 s1 e1 0.7 s 0.5 0.2 s 0.5 0.2 a 0.5 1 DEC 94 1 0 s2 0.0 s 0.7 0.1 s 1.0 03 a 0.5 0.0 s 0.6 0.1 a 0.5 MEAN a04 0.2 a 0.4 0 a1 0.0 s 0.7 JAN 94 0.4 s 0.9 0.1 a 0.4 -0.3 s2 0.5 s 0.7 16C2 e1 0.2 a 0.5 0.3 s 0.5 0.1 s 0.5 -1 a 0.7 FEB 94 1 a 0.J 0.2 s 0.3 0 s2 0.1 Mkk 94 0.3 s 0.7 0.4 a 0.4 0.1 s 0.5 2 a3 1 e1 0.0 s 0.5 0.1 a 0.5 0.2 APR 94 0 a1 0.1 s 0.5 0 e2 0.3 s 0.8 s1 0.2 s 0.5 -0.2 s 0.5 s2 MAY 94 1 s 0.7 0.4 s 0.6 1 a4 0 JUN 94 2 *1 0.1 a 0.7 -0.2 1 e2 0.3 s 0.8 s 0.9 0.1 s 0.4 -0.2 s 0.4 0.4 s 0.4 0.0 s 0.7 JUL 94 0.0 s 0.4 0.2 s 0.4 0.1 s 0.4 1 a2 AUG 94 1.0 s 0.9 0.4 s 0.5 0.4 a 0.5 1 e2 0.2 s 0.8 SEP 94 0 a1 0.7 s 0. 5 0.2 0 a3 1 s1 j s1 0.6 s 0.S 0.3 s 0.4 0.3 a 0.4 a 0.1 i OCT 94 1 a 0.1 -0.2 a 0.f 0.2 s 0.4 0 s2 0.2 NOV 94 0.6 s 0.9 0.3 s 0.1 0.2 a 0.6 -2 a3 -1 a1 l 1 s1 0.5 a 0.6 -0.3 DEC 94 l a 0.2 0 s2 0.1 s 0.9 0.6 e 1.2 0.3 s 0.5 -0.2 s 0.3 0.2 MEAN 0,1 a 0.4 0.1 a 0.4 0 a2 0.2 s 0.6 JAN 94 0.0 s 0.7 0.1 a 0.4 s2 -0.1 a 0.8 28F3 0.3 a 0. 5 0.4 s 0.5 0.2 a 0.5 2 FRS 94 0.6 s 0.9 0.2 s 0.5 1 e2 1 a1 MAR 94 1 a1 0.2 a 0.6 1.3 a 0.5 0 s2 0.1 a 0.9

)

a 0.4 -0.2 s 0.5 0.2 s 0.5 APR 94 0.6 s 0.9 0.1

=0.5

0.4 0.4 a 0.4 1 e2 0.0 s 0.9 MAY 94 0.2 s 0.0 0.3 s 0.4 a 0.6 -1 a4 0 e1 0.7 s 0.7 0.4 s 0.6 0.4 JUN 94 0 e1 a 0.4 0 e2 -0.1 a 0.9 0.5 s 0.0 0.5 s 0.4 0.0 s 0.4 -0.1 a2 0.3 s 0.9 JUL 94 s 0.5 0.4 a 0.5 0.5 s 0.5 0 i AUG 94 1 s1 -0.1 0 a3 -1 e1 s 0.5 0.0 s 0.5 0.4 a 0.5 SEP 94 0 a1 0.4 4 s3 0 s2 e1 0.0 s 0.5 0.2 a 0.5 0.3 a 0.5 a 1.0 OCT 94 0 0.0 s 0.7 1 s2 0.1 1 a1 0.5 s 0.5 0.1 a 0.7 1 e2 -0.1 s 0.8 NOV 94 0.1 s 0.4 0.0 a 0.4 DEC 94 -0.5 s 0.8 0.2 a 0.4 a 0.5 0 e3 -0.2 a 0.0 MEAN 0.4 a 1.0 0.3 a 0.5 0.0 a 1.0 0.s i

q C-7

i l

l TABLE C-II.4 CONCBNTRATIONS OF GAIG8k EKITTERS IN DRINKING WA15R SAMFIAS1994 COLLSCTED IN THE VICINITY OF LIISRICK GENERATIESS STATION, f

kSSULTS 1N UNITS OF FCI/ LITER e 2 SIGMA I I

COLLSCTION RA-326 TM-238 l 1

STC PERIOD

..... ............... ............. ........ ... i' JAN 94 10 e 10 1 s1 13N2 0.5 FSB 94 -10 a 10 s 0.9 . . '

MkR 14 -10 a6 -1.2 s 0.5 APR 94 -20 a 10 1.7 e 0.8 MAY 94 -20 e 10 1.6 s 0.9 ,

JUN 94 6 s9 1.0 s 0.7 !

JUL 94 -5 a8 -0.2 a 0.7 *

-10 s 10 0.1 a 0.8 AUG 94 ,

SEP 94 -5 a9 *1 2 a 0.9 OCT 94 0 a 10 0.9 s 0.8 NOV 94 0 a 10 0 e1 ,

DEC 94 0 a 10 2 s1 t g

MEAN -7 a 15 -0.2 a 2.3 6 a9 0.0 a 0.9 15F4 JAN 94 a1 FES 94 -20 e 10 0 MAR 94 -10 a0 0.5 a 0.7

-4 s5 0.2 a 0.5 1 APR 94 a 0.7 mkt 94 -2 aS 1.3 JUN 94 -9 e9 +2.1 s 0.9 3 e9 -1.3 s 0.8 JUL 94 s 0.5 ADO 94 -13 s5 -0.5 I

-7 a6 0.9 t 0.5 JSP 94 e 0.5 DCT 94 -14 a5 -0.6

-1 e 10 0.3 a 0.9 NOV 94 Dtc 94 0 a 10 1 s1 MEAN -6 a 15 -0.4 s 1.8 JAN 94 -9 s9 -2.5 e 0.8 15F7 -0.8 s 0.5 FSB 94 3 a6

-9 a9 -3.0 s 0.9 ;

MAR 94 1 a7 -0.5 s 0.6 t APR 94 a 0.5 MkY 94 -9 s9 1.2

-7 e5 -0.1 s 0.5 :

JUN 94 e 0.5 JUL 94 -14 e5 -0.8 '

ADO 94 -8 a7 1.1 a 0.9

-1 s8 -0.7 a 0.6 .

SSP 94 e 0.6 !

DCT 94 -9 7 0.6 NOV 94 0 a 10 1 s1 l DEC 94 -20 e 10 -3 a1 l MEAN -7 a 12 0.6 s 2.9

-2 a6 -0.6 a 0.6 r 16C2 JAN 94 a 0.7 ;

FNs 94 6 sS 0.9 MAR 94 -3 s7 0.5 a 0.6 APR 94 -20 a 10 -2 s1 i AkY 94 -10 s0 0.2 a 0.7 '

-6 8 9 *0.1 s 0.9 JUN 94 a 0.6 JUL 94 -17 a4 ' 0.8 1 s7 -0.1 e 0.5 i AUG 94 s 0.7 !

SEP 94 -10 a0 1.1

-1 a7 0.1 a 0.6 DCT 94 a 0.6

-6 e6 -0.7 HOV 94 a1 DEC 94 -20 a 10 -3 MEAN -8 e 14 -0.4 e 2.2

1. e8 0.3 s 0.7 StF2 JAN 94 e 0.9 FSS 94 0 a 10 0.8 -

-1 eS *2.1 a 0.0 MAR 94 a 0.8 APR 94 -13 e4 -1.0

-9 a6 -1.0 a 0.4 .

MAY 94 a 0.9 JUN 94 -10 e 10 1.4

-8 e9 0.0 s 0.7 l JUL 94 -1.6 a 0.0 ADO 94 -7 s9 Sep 94 -20 a 10 -0.5 e 0.9 2 s9 -1.3 a 0.9 DCT 94 '

Nov 94 -10 e 10 0.7 s 0.9 25 a6 -0.5 s 0.6 DEC 94 MEAN 8 e 16 -0.4 e 3.1 i C-8

y _ __ __ _ _ _

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TABLE C-IV.1 CONCENTRATIONS OF GAMNA ENITTERS IN SILT SANPLES COLLECTED IN THE VICINITY OF LINERICK GENERATING STATION, 1994 RESULTS IN UNITS OF PCI/KILOGRAN DRY a 2 SIGNA CS-137 RA-226 TM-228 K-40 MN-54 Cs-134 COLLECTION BR-7 STC PERIOD a 20 60 e 10 .............

11 : s 40 .............

2600 t 600 .............

1200 a 100 1632 05/24/94 2400 m 300 14000 m 1000 0 2 30 90 e 30 400 2 60 2000 m 500 1200 m 100' 11/03/94 600 s 400 16000 2 2000 10 80 2 40 290 a 310 2300 2 800 1200 s0 2 0 NEAN 1500 t 2500 15000 2 3000 0 50 2 20 140 2 30 1200 2 500 1100 2 100 10 m 20 16C4 05/24/94 1100 a 300 9000 e 900 2 40 40 2 30 150 2 40 1700 a 700 -1900 a 200 11/03/94 1200 2 400 15000 e 1000 50 e 10 150 s 10 1500 2 700 1500 2 1000 1200 e 100 .12000 2 8500 30 2 60 50 NEAN 40 a 30 10 a 30 1600 2 700 1100 s 100 a 300 3600 s 900 10 m 30 1000 2 100 33A2 05/24/94 0 40 a 30 60 s 30 0 a 30 1800 a 700 11/03/94 0 2 300 8200 e 800 2 30 10 a 10 1700 a 300 1000 2 200 20 t 50 50 MEAN 0 2 100 8400 2 600 i

C - 10 1

1 l

7_

l TABLE C.V.1 CONCENTRATIC8tB 0F GROSS BETA IN AIR PARTICUIATE SAMPLES ,

COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 i j

RESULTS IN UNITS OF E-3 PCI/CU. METER s 2 SIGNA .

GROUP I - ON-SITE LOCATIONS ?

1181 1481 3482 !

. WEEK 1053 ............. ............. '

...... ............. ............. 3 15 23 18- 3 16 3 14 '

01 23 16 s3 '

15 s3 17 *3 15 02 30 .: 4 32 *4 03 28' s3 29 : 4 -

15 's3 14 3 15 *3 04 14- a3 19 4 20 4 21 s4 23 4 i 05 18 s3 23 3 18 s3 15 s 2 f 06 22 34 23 *4 07 23 4 20 a3 s3

- 14 s3 13 s3 13 33 13 i 08 s3 16 23 16 3 15 s3 14 >

09 20 m3 10 21 s3 18 s3 20 a3 ,

13 23 12 s3 13' s3 11 14 s3 13~ *3 16 s3 12 s3 12 a3 l 12 s4 13 3

'21 s4 16 4 16 13 3 13 3 i 15 s3 13 3 14 14 s4 14 s4 14 24 18 s4 19 15 8 17 3 15 23 17 s3 16 17 s3 16 s3 15

3 13 s3 15 17 s3 14 s3 15 a3 17 3 14 18 24 21 s4 13 s3 17 4 19 19 3 11 s3 8 a3 11 s3 7 20 23 13 s3 16 s3 9 s2 11 21 s3 12 *3 ,

12 22 14 s3 12 e3 s3 16 3 12- *3 11 23 13 23 s3 20 s3 24 19 s3 18 3 21 !

15 a3 13 s3 16 s3 25 14 s3 13 3 14 s3 16 s3 14 s3 26 s4 (1) 24 4 19 *4 21 27 s4 20 : 4 .

20 : 4 28 s4 16

28 13 s3 17 3 29 17 s3 15 a3 l 15 .:3 11 s3 12 s3 f 30 (1) 12 s3 15 s3 17 3 16 3 31 17 a3 19 23 15 s3 17 : 4 32 8 s3 10. : 3 33 11 s3 9 s3 2 24 s4 17 *3 19 s3 i 34 19 3 15 s3 15 s3 14 3 15 3 35 *4 17 s4 1 21 24 16 *4 16 !

36 31 s4 28 3 34 24 28 : 4 37 s3 12 s3 14 2 4 13 a3 11 38 s3 14 3 3 16 e3 12 s3 15 39 s3 15 3 15 3 15 a3 10 40 23 18 3 16 s3 17 3 17 41 s3 26 24 24 3 26 4 20 42 s3 21 a3 i 21 s3 19 3 21 1 43 s3 21 s3 15 3 15 3 14 44 s3- 21 s3 !

23 3 21 a3 18 45 19 *3 20 s3 22 e3 18 2 3 46 s3 15 s3 ,

15 s3 17 3 17 47 s4 28 4 l 30 4 31 s4 29

- 48 14 3 14 3 3 49 15 3 16 33 s3 )

22 s3 21 s3 24 'l 50 19 s3 s3 25 a3 25 *3 25 s3 23 :

51 21 s3 24 s3 52 21 *3 22 a3 1 i

18 s 11 16 s 10 17 a 10 NEAN 18 s9 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION l

c . 11 l i

TABLE C-V.1 CONCENTRAMONS OF GROSS BETA IN AIR PARTICU1JLTE SAMPLES COLLECTED IN TEE VICINITY OF LIMERICK GENERATING STATION, 1994 RESULTS IN UNITS OF E-3 FCI/CU. METER a 2 SIGNA GROUP II - INTERMEDIATE DISTANCE 14ACATIONS 13C1 15D1 1751 6C1 9C1 WEEK 01 231 16 a3 14 a3 14 a3 16 a3 .............

14 a3 .............

14 a3 a3 15 a3 18 a3 18 02 15 a3 17 a3 19 a3 26 a3 (

a4 30 a4 28 a4 33 a4 03 31 a4 32 21 a4 15 a3 a3 15 a3 20 a2 15 a3 04 16 a4 25 a4 19 a4 24 a4 20 a# 25 a4 19

05 21 a3 22 a3 18 a3 06 22 a3 17 a3 17 a3 26 a4 21 a3 25 a4 22 a4 07 (1) 28 a4 14 a3 14 a3 a3 12 a3 16 a3 12 a3 08 14 a3 15 a3 13 a3 j 17 a3 14 a3 16 a3 14 09 19 a3 17 a3 17 a3 10 22 a3 17 a3 17 a3 13 a3 $

a3 13 a3 11 a3 13 a3 11 12 a3 11 a3 13 a3 16 a3 12 a3 12 a3 13 a3 13 +

12 15 a4 17 a4 15 a4 13 15 a4 16 a4 16 a4 13 a3 a3 13 a3 14 a3 14 a3 i 14 14 a3 8 a4 15 a4 10 a4 a4 8 a4 11 a4 13 15 12 a3 18 a3 13 a3 19 a3 17 a3 17 a3 18 16 14 a3 17 a3 14 a3 17 14 a3 14 a3 9 a3 14 a3 15 a3 10 a3 13 a3 18 14 a3 15 a3 15 a3 15 a3 14 a3 12 e3 18 a4 29 a4 19 a3 8 a3 9 a3 8 a3 20 7 a3 6 a2 9 a3 16 a3 a3 8 a2 12 a3 12 21 15 a3 14 a3 '13 a3 a3 12 a3 12 a3 13 22 13 a3 14 a3 14 a3 a3 14 a3 15 a3 16 23 13 a3 12 19 a3 19 a1 a3 21 a3 20 a3 20 a3 24 19 15 a3 13 a3 15 a3 13 aJ .

25 17 a3 17 a3 13 a3 1; e 3 !

a3 13 a3 17 a3 16 a3 26 14 a4 27 a4 29 a4 a8 25 a4 18 a4 18 27 27 a4 19 a4 20 a4 1 18 a4 23 a4 19 a4 26 '

28 a3 17 a3 19 a3 15 a3 29 19 a3 21 a3 19 a3 14 a3 14 a3 15 a3 11 30 12 a3 16 a3 a3 15 a3 +

16 a3 9 a3 18 a3 14 a3 13 31 a3 17 a3 (1) 16 a3 32 17 a3 17 a3 15 a3 '

10 a3 12 a3 13 a3 10 33 10 a3 11 a3 22 a4 14 a3 20 a4 15 a3 17 a3 24 a4 34 16 a3 14 a3 12 e3 35 15 a3 12 a3 15 a3 a4 21 a4 15 a4 23 a4 19 36 21 a4 17 a4 a4 as a3 27 a3 27 a3 32 a4 30 37 30 a4 11 a3 11 a3 16 a5 38 13 a3 13 a3 12 a3 (1) a3 14 a3 13 a3 14 a3 39 14 a3 12 14 a3 13 a3 13 a3 13 a3 10 a3 14 a3 40 a3 16 a3 19 a3 22 a3 41 19 a3 20 a3 17 23 a3 22 a3 20 a3 23 a3 24 a3 42 22 a4 19 a3 21 a3 21 a3 43 20 a3 21 a3 19 a3 15 a3 a3 16 a3 17 a3 16 a3 ,

44 17 a3 16 22 a3 20 a3 '

a4 21 a3 19 a3 19 a3 45 22 a3 22 a3 19 a3 17 a3

46 23 a3 19 a3 20 14 a3 a3 15 a3 16 a3 18 a3 47 18 a3 16 30 a4 32 a4 29 a4 29 a3 28 a3 28 a4 48 a3 14 a3 15 a3 13 a3 dip 14 a3 13 a3 15 a3 a3 21 a3 20 a3 19 50 22 a3 17 a3 22 25 a3 25 a3 24 a3 24 a3 24 a3 51 25 a3 23 a3 27 a4 17 a3 52 19 a3 22 a3 23 a3 a 10 17 a 11 18 a 11 17 a 10 18 a 10 17 a il 17 HEAN i

(1) SEE PROGRAM RECEPTIONS SECTION FOS EKPIANATION 9

5 L

c - 12

c , ,

5 CONCENTRATIQWS OF GROSS BETA IN AIR FARTICUKATE SAMPLBS (

TABLE C-V.1 COLLECTED IN TER VICINITY OF LIMERICK amenaTING STATION,1994 l

RBSULTS IM UNITS OP E.3 FCI/CU. METER a 2 SIGNA $

GROUP II . INTERMEDIATE DISTANCS 14ACATIONS 3551 l 2631 2931 31D1 WBBK 20D1 ............. .............

a3 14 a3 15 a3 13 a3 10 a3 13 .a3 l 01' 18 a3 18 a3 19 02 18" s3 18 e3 a4 24 a3 ')'

32 a4 33 a4 28 03 30 a4 a3 16 a3 16 a3 15 a3 15 a3 18 20 a4 ,

04 21 a4 19 a4 05 25 a4 17 s4 a 3. 17 a3 '

(1) 17 a3 19 06 18 a3 a3 27 a4 25 a4 23 a4 23 a4 20 17 a3 [

07 13 a3 16 a3 08 15 a3 11 a3 s3 12 s3 -l 14 a3 20 *3. 14 09 15 a3 a3 14 a3 18 a3 ,

i 17 a3 18 a3 18 a3 10 13 a3 13 s3 14 ?

11 13 a3 13 a3 a3 14 a3 13 a3 16 s3 17 12 15 s3 s4 16 a4 13 a4 ;

13 a3 15 s4 16 a3 13 12 a3 13 a7 16 14 12 a3 13 a3 a4 7 s3 15 s4 12 ae r 15 9 s4 10 a3 15 a3 19 a3 -14 a3 15 ,

16 16 a3 a3 14 a3 8 a3 '

a3 14 a3 13 s3 17 14 a3 12 a3 13 !

13 a3 13 a3 14 a3 18 15 a3 14 a3 13 !

19 14 a4 13 a3 s2 9 a3 9 a3 (1) 7 .;

20 7 a3 15 a3 13 s3 17 a3 21 15 a3 11 a3 a3 12 e3 13 a3 13 a3 14 !

22 18 a3 a3 15 a3 15 a3 16 a3 13 a3 11 a3 ,

23 19 a3 14 s3 19 24 18 a3 18 a3 s3 17 s3 12 a3 16 a3 16 !

25 16 a3 15 a3 18 a3 12 s3 !

26 17 a3 15 a3 a4 22 a4 17 a4 24 a4 21 l 27 23 a4 18 a4 19 a4 20 s4 28 18 s4 16 a4 a3 19 s3 1 13 a3 15 a3 15 -

29 14 a3 15 a3 15 a3 14 a3 I 30 14 a3 17 e3 a3 13 a3 17 a3 17 a3 16 l 31 15 a3 a3 17 a3 18 a3 18 a3 17 a3 15 a3 'j 32 12 a3 11 a3 10 33 9 a3 11 a3 18 a3 20 a3 34 20 e4 23 e4 19 s3 15 a3 17 a3 14 a3 13 a3 35 12 a3 20 a4 18 a4 36 17 a4 19 e4 19 e4 30 a4 30 a4 31 a4 30 a4 i 37 29 a4 a2 11 s3 11 a3 i 19 a3 12 s3 15 a3 38 1L a3 12 s3 17 39 14 a3 12 a7 a3 15 a3 l 14 a3 11 a3 15 40 12 a3 a3 17 s3 23 a3 18 a3 18 a3 20 a3 41 22 a3 29 a4 23 42 24 a4 22 s4 21 a3 20 a3 23 a3 19 a3 -

43 18 a3 s3 16 a3 14 e3 '

17 a3 15 a3 18 a3 44 23 a3 20 a3 21 45 22 s3 20 a3 a3 22 a3 l 20 a3 19 a3 18 46 19 s3 *3 16 a3 16 a3 19 a3 13 s3 15 a4 47 28 a3 30 a4 30 !

48 32 a4 34 a4 a3 16 a3 15 a3 12 e3 16 '

49 15 a3 e3 24 a3 21 a3 19 a3 24 s3 20 a3 50 25 a3 26 a3 23 '

51 23 a3 25 a3 a3 20 a3 19 a3 23 a3 22 52 22 e3 17 a 10 17 a 10 17 a 10 MEAN 17 a 10 17 s 11 l

e (1) Sam rnooRAN ExcsPTrowS SacTIou rom Exr1AuAtrou -

I I I

C - 13 i l

~ ~ . . .

1 I

i 8

4 CONCElr5ATI0ttS OF GROSS BFTA 'IN AIR PARTICUIATE 1994 SAMPLES - .i

- TABLE C-V.1 COLLECTED IN TEE VICINITY OF LIMERICK GENERATING STATION, !

1 RESULTS IN UNITS OF E-3 PCI/CU. NETER s 2 SIGNA GROUP III - CONTROL LOACATICBIS

-I WEEK 1354 22G1 *

...... ~............ ............. I 01 15 a3 12 s3 .J 02- 35 s3 15 a3 *

03 29 s4 26 s3-04 15 a3 13 a3 ;

05 27 a3 19 2 4 '

06 20 s3 19 s3 '

07 23 a3 26 *4 08 13 's 3 7 *3 r 09 it a3 14 a3 13 s3 20 2 3 10 11 16 s4 24 s3 12 19 s3 12 s3 i 13 14 s3 10 me !

14 .19 a3 15 s3 20 s3 9 2 4 15 2 3-16 20 s3 18 17 19 2 3 15 a3 i 12 a3 13 a3 ,

le 25 *4 17 s4 19 s 3.

20 10 s2 7 !

17 s3 16 s3 21 a3 22 16 - s3 11 ;-

20 a3 14 s3 23 a3 24 20 s3 19 18 a3 17 *3- ,

25 3 26 25 s3 14- i 27 14 a3 27 s6 '

23 a3 21 a4 20 s3 29 18 a3 15 30 19 a3 13 s3 .

31 18 a3 13 a3 32 18 s3 17 *3 33 13 a3 10 s3 .

34 22 a3 20 s3 l 35 18 s2 is a3 36 27 a4 19 a4 '

37 35 s4 28 s4 38 14 a3 17 a3 22 a3 13 2 3 39 a3 40 16 s3 14 41 18 s3 16 s3 42 25 s3 21 a3 ,

43 19 a3 le s3 !

de 18 a3 16 s3 f 45 19 a3 22 s3

46 22 s3 17 *3 '

47 13 a2 16 a3 48 30 a3 29 s4 49 17 a3 15 a3 -

50 21 a3 18 a3 51 24 s3 21 s3 52 20 s3 19 s3 19 s 10 17 a 10 MEAN :

C - 14

?

t I

a

- 13-3 FCI/CU. NETER) IN AIR FARTICULATE SANFLES-NOWTHLY AND TEARLY MEAN VALUES OF OROSS DETA CONCWtrfRAO, a994 TABLE C-V.2 COLLECTED IN THE VICINITY OF LINERICK OWNERATING STATIC" . CONTROL LOCATIONS

' l LOCATIONS GROUP III OROUP I - OW-SITE LOCATIONS OROUP II . INTERNEDIAT" . ............... ....................................... ...

COLLECTION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .COLLBCTION ...................-........ MIN. MAR. IWAN e 2 SD-COLLECTION MIN. MAX. ISAN e 2 SD FBRIOD............ ..... ..... .............

NIN. MAR. NEAN e 2 SD PERIOD PERIOD e 13

................. ..... . ... 32............. 19 e 13

..... ..... 10 01/03/94-01/31/94 .............

33 19.....01/03/94-01/31/94' e

e9 13 01/31/94-02/28/94 12 7

29 - 18 27 ~ 19 e 13 01/03/94-01/31/94 14 28 19 15- *5 23 19 e8 01/31/94-02/28/94 11 15 e5 02/28/94-03/28/94 12 20 01/31/94-02/28/94 13 21 15 e6 02/28/94-03/28/94 11 22 es 03/28/94-05/02/94 9 20 17 e7 02/28/94-03/28/94 12 03/28/94-05/02/94 7 19 14 25 > 15 e 11 03/28/94-05/02/94 -13 21 16 *4 29 13 e8 05/02/94-05/31/94 7 e4 21 14 e8 05/02/94-05/31/94 5 21 15 e5 05/31/94-06/27/94 11 20 17 05/02/94-05/31/94 7 21 15 e5 05/31/94-06/27/94 11 e8 05/27/94-08/01/94 13 27 19 e 10 05/31/94-06/27/94 11 06/27/94-08/01/94 11 29 18 22 .15 .e8 06/27/94-08/01/94 11 28 17 e9 24 15 a8 08/01/94-08/29/94 10 e 14 24 15 e9 08/01/94-08/29/94 9 18 e 13 08/29/94-10/03/94 13 35 21 08/01/94-05/29/94 8 34 18 e 14 08/29/94-10/03/94 11 32 e8 10/03/94 10/31/94 14 25 18 e7 = -

08/29/94-10/03/94 11 10/03/94-10/31/94 10 29 19 22 ~ 10 .e6 10/03/94-10/31/94 10 26 19 e9 23 18 e5 10/31/94 11/28/94 13 21 23 18 e5 10/31/94 11/28/94 13 22 e 11 11/28/94-01/04/95 15 30 e 10 10/31/94-11/28/94 14 31 22 e 10 11/28/94-01/03/95 12 34 11/28/94-01/03/95 14 e 10 01/03/94-01/04/95 7 35 10 e 10 34 17 34 17 e 10 01/03/94-01/03/95 6 01/03/94-01/03/95 7 1083, 1151, 1481, 3482

' WOTEe OROUP I CONSIST OF IACATIONSOROUP II CONSIST OF LOCATIONS 291, EC1,' 13C1,15D1,1791, 20D1, 2631, 2931, 31D1, 3551 OROUP III CONSIST OF LOCATIONS 1354, 2201 l

C- 15

_ _ _ _ _______ ___ _ _ . _ . _ . . _ _ . . . . _ _ . _ _ _ ._...,. _ _. .-._....._,2_. . .. .-.,,.__._._.-_.._.-_..,_____.a__ .._._ _ _. _,

l J

TABLE C-V.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 l

RESULTS IN UNITS OF E-3 PCI/CU. METER e 2 SIGMA L K-40 CS-134 CS-137 COLLECTION BE-7 !

STC PERIOD s3 0.0

0.3 0.1 a 0.3 >

10S3 01/03-04/04/94 75 s7 5 0.0 s 0.3 [

100 s 10 -5 *5 0.2 s 0.3 04/04-07/05/94 0 a5 -0.2 s 0.3 0.1 a 0.3 07/05-10/03/94 74 a7 0.1 a 0.3 .

75 s8 -2 s4 0.0 s 0.3 10/03-01/03/95

-1 a8 0.0

0.3 0.1 s 0.1 MEAN 80 s 21 i

15 s5 0.1 a 0.4 0.1 s 0.3 '

11S1 01/03-04/04/94 67 7 37 s6 0.1 s 0.4 0.2 s 0.3 04/04-07/05/94 69 7 1 s4 0.2 s 0.3 0.0 s 0.3 07/05-10/03/94 75 s7 -0.2 s 0.4 69 s8 11 s7 -0.1 0.4 10/03-01/03/95 16 s 30 0.1 a 0.2 0.0 s 0.3 ;

MEAN 70 a7 4 s4 -0.1 s 0.2 0.2 a 0.2 13C1 01/03-04/04/94 68 s7 0.1 s 0.3 4 88 e9 5 a5 0.1 s 0.3 04/04-07/05/94 4 s4 0.2 a 0.3 0.0 s 0.2 07/05-10/03/94 64 s6 0.4 t 0.3 68 7 1 *4 -0.1

0.3 10/03-01/03/95 4 s3 0.0 s 0.3 0.2 s 0.3 MEAN 72 s 22 I

0.0 s 0.2 ;

60 a6 3 e4 0.0 s 0.2 13H4 01/03-04/04/94 3 e4 0.1 s 0.2 0.0 s 0.2 l 04/04-07/05/94 87 s9 0.1 s 0.4 73 *7 4 s4 -0.2 s 0.3 07/05-10/03/94 0 a4 0.0 s 0.2 0.1 s 0.2 ,

10/03-01/04/95 70 a7 2 s4 0.0 s 0.2 0.1 a 0.1 MEAN 73 2 22 12 s5 0.0 s 0.3 0.0 s 0.3 14S1 01/03-04/04/94 65 s7 0.0 s 0.3 89 a9 -1 *5 0.2 s 0.3 04/04-07/05/94 22 e6 -0.4 s 0.4 0.1 a 0.3 '

07/05-10/03/94 63 6 s 0.3 s5 -0.2 s 0.3 0.0.

10/03-01/03/95 71 a7 -4 MEAN 72 s 24 7 s 24 -0.1

0.5 0.0 s 0.1 f 22G1 01/03-04/04/94 (1) 04/04-07/05/94 6 *3 0.0 s 0.2 -0.1 s 0.2 07/05-10/03/94 67 s7 0.0 s 0.2 7 4 -0.1 s 0.3 l 10/03-01/03/95 69 s7 7 a1 0.0 s 0.2 0.0 s 0.1 MEAN 68 a3 (1) SEE PROGRAM CNANGES SECTION FOR EEPLAXATION i

e

)

C - 16 i

1

TABLE C.VI.1 CONCENTRATIONS OF I.131 IN AIR IODIM SANFLES COLLECTED IN TER VICINITY OF LIMERICK OENERATING STATION, 1994 RESULT 5 IN UNIT 5 OF E.3 PCI/CU. NETER a 2 SItash GROUP II GROUP III OROUP I ........ ..................

................................ 1354 22G1 1181 1481 13C1 1083 NEEK a 10 0 a 10 0 a 10 3 a8 .............

10 a 10 .............

(1) 01 10 a 10 3 a8 4 a 10 02 0 a 10 0 a 10 0 10 a 10 a9 5 a9 5 a9 3 a6 03 5 a 20 0 a 20 0 a 10 0 a 20 04 0 a 20 0 10 a 20 a 20 10 a 20 10 a 20 0 a 10 05 10 a 10 4 a8 06 10 a 10 10 a 10 10 a 10 10 a 10 30 a 10 30 a 10 9 a7 07 30 a 10 -20 a 10 a 20 20 a 20 20 a 20 20 a 20 to 08 20 a6 10 a 10 09 0 a 10 0 $ 10 0 a 10 2

-10 a 10 10 a 10 3 a6 30 -10 a 10 10 a 10 1 a8 a8 1 a8 1 a8 1 a6 11 1 a 10 0 a6 12 10 a 10 10 a 20 10 a 20 10 a 10 a 20 0 a 20 0 a 20 0 a 20 0 13 0 a 20 -10 a 20 0 a 10 10 a 20 14 10 a 20 10 a6 0 a 10 15 0 a 10 0 a 10 0 a 10 1 a8 2 a8 1 a6 2 a8 16 -10 a 20 2 a 10 10 a 20 20 a 20 10 a 20 10 a 20 8 17 a 10 0 a 10 2 *7 0 a 10 18 0 a 10 0

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l 30 (2) 30 0 a9 0 a 10 0 a 10 0 a 10 1 a7 31 0 a 10 a 10 3 a6 0 a 10 5 a9 32 4 a8 4 a8 to a8 0 a 10 a 10 0 a 10 0 a 10 3 a 10 0 33 0 ap 4 a6 2 a4 6 a9 34 6 a9 6 a9 6 a 10 2 a7 a 10 0 a 10 10 a 10 0 35 0 a 10 0 a 10 0 a 20 0 a 10 36 0 a 20 0 a 20 0 a 20 0 10 a 10 a 10 10 a 10 5 a6 6 a7 38 10 a 10 10 a8 3 a5 9 a 10 39 10 a 20 0 a 10 0 a 10 3 0 a 20 a 20 3 a 10 1 a9 40 0 a 10 0 a 10 0 0 a 10 10 a 10 a 10 10 a 10 8 a8 41 10 a 10 10 a 10 10 a 10 3 a8 42 10 a 10 -10 a 10 10 a 10 10 a6 a8 0 a8 3 a8 2 43 3 a8 3 a8 3 10 a9 0 a 10 a 10 0 a 10 0 e 10 2 a6 a 10 44 0 a 20 0 a 20 6 a8 0 a 20 0 45 0 a 20 0 a8 10 a 10 10 a 10 10 10 a 10 10 a 10 3 a 20 46 a 10 a 20 0 a 20 0 a 10 0 a 20 0 47 0 a 20 0 a6 -1 a9 10 a 10 a 10 10 a 10 10 a 10 3 a8 48 10 a 10 0 a 10 0 a 10 0 a 10 1 49 0 a 10 0 a6 0 a 10 2 a 10 a 10 0 a 10 0 a 10 3 a 10 50 0 a 10 0 a 10 2 a9 0 a 10 0 51 0 a 10 0 0 a9 2 a6 0 a 10 52 e a 10 0 a 10 0 a 10 a 10 0 a 10 a 10 1 a6 0 53 0 a 10 0 a 10 0 0 a 11 -1 a9 0 a 12 MEAN O a 12 0 a 13 0 a 13 (1) SEE PROGRAN CBANGE5 SECTION FOR IIPLANATION (2) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLAMATION i

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I I TABLE C-VII.2 CONCENTRATIONS OF GAbeth ENITTERS IN MILK SANFLES COLLECTED IN TER VICINITY OF LIMERICK GENERATING STATIOO 1994 33sULTs IM UNITS OF FCI/ LITER a 2 SIGMA Cs-137 EA-140 LA-140 COLLECTION K-40 Cs-134 STC FERIOD

..--. ........- .-.-- - . . . - . . . . . . . - - - . . . . . . . . . - - . a3 . . . . - . 1. . . . -a9

- - . . . - - - a3 a3 4 1031 01/11-01/11/94 1300 a 100 0 1 a2 -3 s7 1 a3 02/08-02/08/94 1400 a 100 1 a2 a6 1 s3 1400 a 100 -5 a2 3 a2 -5 a3 03/08-03/08/94 a3 4 a3 4 s7 0 04/12-04/12/94 1600 a 200 2 1 a2 -2 a6 1 a3 04/26-04/26/W4 1600 a 200 -2 e2 a6 1 e2 a2 1 a2 2 05/10-05/10/94 1700 a 200 0 1 e2 -2 a6 0 e3 1700 a 200 0 a2 a3 05/24-05/24/94 a2 4 s2 -2 a8 0 06/07-06/07/94 1600 s 200 -1 1 a3 -1 a7 0 a3 1700 a 200 1 a3 a4 06/21-06/21/94 a3 6 e3 -7 s9 0 07/05-07/05/94 1700 a 200 -1 1 a3 0 s 10 1 s4 1800 a 200 -1 a3 a3 07/19-07/19/94 a3 2 a2 6 5 -1 08/02-08/02/94 1500 a 100 0 1 a2 6 a8 al a3 1600 a 200 1 2 a3 08/16-08/16/94 a3 4 a3 -6 a7 1 08/30-08/30/94 1200 a 100 0 1 e3 3 s8 1 e3 1600 a 200 0 a3 a3 09/13 09/13/94 a3 0 a3 -4 a7 0 09/27-09/27/94 1400 a 100 -5 2 a2 6 a8 1 s3 1400 e 100 1 s2 e3 10/11 10/11/94 a3 0 a3 -1 s7 0 10/25-10/25/94 1500 a 200 -3 2 a4 -1 a8 0 a1 MEAN 1500 s 300 -1 a4 1 a2 -1 a8 1 a3 01/11-01/11/94 1500 a 100 0 s2 a7 3 a3 18C1 e2 i s2 -3 02/08-02/08/94 1500 a 200 1 0 a2 5 a6 1 a2 03/08-03/08/94 1400 a 100 0 s2 a6 1 a3 1400 a 100 -1 e2 2 a2 -2 s2 04/12-04/12/94 a2 -1 2 0 a6 0 04/26-04/26/94 1500 a 100 -1 2 a2 -1 a6 0 a3 1400 a 100 0 a2 s2 05/10-05/10/94 a2 0 a2 -S s6 0 05/24 05/24/94 1500 a 100 1 1 e2 3 a6 1 a2 06/07 06/07/94 1400 a 100 1 a2 a6 1 a3 a2 1 a2 1 06/21 06/21/94 1400 a 100 -1 0 a2 -4 s8 0 a3 07/05-07/05/94 1400 a 100 2 a2 a3 a3 -1 a2 6 e7 1 07/19-07/19/94 1400 a 100 0 1 e2 2 s7 -3 a3 08/03-08/02/94 1400 a 100 1 e2 a7 -1 a3 1500 a 200 0 a2 1 e2 -4 08/16-08/16/94 2 e2 0 a6 -2 a2 08/30-08/30/94 1400 a 100 0 a2 a 10 2 a4 a3 1 a3 0 09/13-09/13/94 1400 a 100 0 2 a2 3 a6 -1 a3 1300 a 100 -1 a2 a2 09/27 09/27/94 a2 2 a2 -3 a6 -2 10/11-10/11/94 1500 a 100 1 a2 0 m6 2 a3 10/25-10/25/94 1400 a 100 -1 a2 -1 e2 e2 2 a2 2 a6 -1 11/08-11/08/94 1400 s 100 0 1 s2 4 s7 -1 a3 11/22-11/22/94 1500 a 100 0 a2 a8 1 s3 1600 a 200 0 a2 2 a2 -2 12/13-12/13/94 a2 1 s2 -1 a6 0 a3 MEAN 1400 a 100 0 1 a2 2 a7 -4 a3 01/11-01/11/94 1300 s 100 0 a2 a9 -1 e3 1981 a3 2 a3 -1 02/08-02/08/94 1400 a 100 -1 1 e4 1 s5 0 a2 03/08-03/08/94 1400 a 100 -1 a2 1 a6 -1 a2 1400 a 100 1 a2 2 a2 04/12-04/12/94 e2 0 a5 1 s2 04/26-04/26/94 1300 a 100 0 a2 -1 0 a7 -1 a3 1300 s 100 -1 a3 2 a3 05/10-05/10/94 1 a2 0 a5 0 a2 05/24-05/24/94 1400 a 100 1 e2 a5 -1 e2 1200 a 100 0 a2 1 a2 -4 06/07-06/07/94 2 s2 -6 a6 -1 e2 06/21-06/21/94 1300 a 100 1 a2 *8 3 a3 a2 2 a2 9 07/05-07/05/94 1400 a 100 1 2 a2 3 a7 -2 a3 07/19-07/19/94 1600 a 200 0 a2 3 a7 -1 a3 1500 a 200 0 a2 2 a2 08/03-08/02/94 2 a2 3 a8 1 a3 08/10-08/16/94 1400 e 100 1 a2 0 a5 0 s2 1100 a 100 0 a2 2 a2 08/30-08/30/94 2 a2 5 a7 -2 e3 1700 a 200 0 a2 a2 09/13-09/13/94 a2 2 e2 1 a6 0 09/27-09/27/94 1600 a 200 0 1 a2 -1 s6 -1 a3 1300 a 100 1 e2 a2 10/11-10/11/94 e2 4 a2 1 a6 -1 10/25-10/25/94 1300 a 100 1 2 e2 -3 a6 0 a3 1400 a 100 -1 s2 s3 11/08-11/08/94 1200 a 100 -2 a2 1 s2 -3 a7 1 11/22-11/22/94 a2 -2 a2 3 a7 3 a3 12/13-12/13/94 1300 a 100 1 e2 1 a2 1 a6 0 a3 MEAN 1400 a 300 0 C - 19

~ms I

l

TABLE C-VII.2 CONCENTRATIONS OF GMSEA EHITTERS IN MILE SAMPLES COLLECTED IN THE VICINITT OF LIMERICK OENERATING STATION, 1994 RESULTS IN UNITS OF PCI/ LITER a 2 SIGMA CS-137 RA-140 LA-140 COLLECTION K-40 CS-134 STC PERIOD a2 1 a2 0 a7 ..-..........

0 a2 2131 01/11-01/11/94 1500 a 100 0 1 a2 -2 aB -1 a4

02/08-02/08/94 1400 a 100 -1 a2 a7 0 a3 a3 1 a3 -2 03/08-03/08/94 1300 a 100 1 2 a2 -2 a5 0 a2 04/12-04/12/94 1400 a 100 0 a2 a7 1 a3 1300 a 100 -1 a3 1 a3 -1 a2 04/26 04/26/94 a2 0 a2 2 a5 0 05/10-05/10/94 1500 a 100 0 1 a3 -4 a8 1 a3

05/24-05/24/94 1400 a 100 4 a3 a6 1 a3 a2 0 a2 4 06/07-06/07/94 1400 a 100 1 0 a2 2 a5 0 a2 06/21-06/21/94 1400 a 100 -2 a2 a7 0 a3 1500 a 100 -1 e2 1 a2 -4 07/05-07/05/94 a2 0 a2 3 a6 2 a2 07/19-07/19/94 1500 a 100 0 3 a3 0 a 10 -1 a4 1400 a 100 4 a3 a 10 a4 08/02-08/02/94 a3 2 a3 0 1 08/16-08/16/94 1400 a 100 -1 0 a2 0 a5 -2 a2 08/30-08/30/94 1300 a 100 1 a2 a6 0 a2 1400 a 100 -1 a2 1 *) O a2 09/13-09/13/94 0 a2 2 =2 -1 a5 0

9/27 09/27/94 1400 a 100 1 a3 -1 a8 1 a3 10/11-10/11/94 1400 a 100 2 a3 2 a5 -1 a2 1400 a 100 1 e2 0 a2 a3 10/25-10/25/94 a3 2 a3 5 a8 2 11/08-11/08/94 1400 a 100 3 2 a3 8 a9 1 a4 11/22-11/22/94 1500 a 200 -1 a3 a8 al a3 1400 a 100 3 a2 2 a3 -1 12/13-12/13/94 1 a2 0 a6 0 a2 MEAN 1400 a 10G 1 a3 4 a2 -6 a8 -3 a3 01/11-01/11/94 1300 a 100 3 a2 4 a9 2 a3 22F1 a3 3 a3 02/08-02/08/94 1400 a 100 1 a2 5 a6 0 a3 1400 e '20 -1 a2 3 a3 03/08-03/08/94 a3 4 a3 -2 a7 1 04/12-04/12/94 1200 a 100 0 e2 2 a2 -1 a6 1 a3 04/26-04/26/94 1400 w 100 -1 2 a2 2 a6 -2 a2 1300 a 100 -1 a2 a3 05/10-05/10/94 1 a2 4 a2 -4 a7 0 05/24 05/24/94 1300 a 100 2 a2 2 a6 0 a3 1200 a 100 1 a2 a3 06/07-06/07/94 1 a3 3 a3 -2 a8 1 06/21-06/21/94 1400 a 100 1 a3 0 a 10 2 a4 1400 a 100 0 a3 a4 07/05-07/05/94 a3 1 a3 0 a 10 0 07/19-07/19/94 1400 a 100 1 2 a2 0 a7 1 a3 1500 a 200 0 a2 a5 08/02-08/02/94 a3 4 a3 10 a 10 1 08/16-08/16/94 1400 a 100 0 3 a2 3 a6 2 a3 08/30 08/30/94 1300 a 100 1 a2 a 10 2 a4 a3 2 a3 10 09/13-09/13/94 1300 a 100 2 1 a3 2 a8 -2 a3 1300 a 100 2 e3 a2 09/27-09/27/94 0 a2 1 e2 3 a6 0 10/11-10/11/94 1100 a 100 2 a3 3 a8 1 a3 10/25-10/25/94 1300 a 100 0 a3 4 a5 -1 a2 1400 a 100 0 a2 2 a2 11/08-11/08/94 0 a2 4 a8 1 a3 1300 a 100 -1 a3 a3 11/22-11/22/94 a2 5 a2 1 a8 2 12/13-12/13/94 1200 a 100 0 2 a3 1 a7 0 a3 MEAN 1300 a 200 0 a2 c - 20 I.

TABLE C.VIII.1 MONTELY TLD RESULTS FOR LIMERICK CFJtERATING STATION. 1994 a 2 S.D.

RESULTS IN tntITS OF MILLI. ROENTGEN /STD. MO. DEC AUG SEP OCT NOV APR MAY .7UN JUL JAN PES MAA STQTICet MEAM e CODE 3482 2 e.D. (1) 7.7 a 3.0 6.e e 0.e 5.4 e 0.7 5.3 e 0.6 T.2 e 0.3 ..........

10.1 e 6.0 ..........

9.1 e 0.7 .......... 0.6 e e.3 ..........

7.9 e 4.3 ..........

0.5 e 0.6 ..........

0.6 e 4.6 ..........

e.e e e.4 7.5 e 0.2 7.5 e 0.2 0.1 e 0.8 7.2 e e.3 6.7 e 0.e 7.7 a 1.2 0.0 a 1.2 7.7 e 0.4 7.4 e 1.1 6.5 a 1.2 5.6 e 0.4 5.7 e 0.6 6.9 e 0.5 281 7.8 e 1.0 0.1 e e.3 7.4 e 1.1 e.7 e e.5 7.9 e 0.3 0.5 e e.4 9.9 e 4.3 4.0 e 1 0 6.9 e e.3 7.3 e 1.2 S.5 e 1.4 2s1 7.3 e 2.9 5.e e 0.5 4.9 e 0.3 7.5 e 9.4 9.3 a 1.1 0.3 a 0.2 7.5 e 0.2 7.0 e 0.3 6.9 e 0.7 7.0 m 0.9 e.3 e 1.7 e.1 e 0.5 7.9 e 2.5 5.9 e 0.0 4.5 e 4.2 5.3 e 0.2 381 6.6 e e.4 6.9 e 0.2 4.2 e 9.4 6.9 e 9.3 5.5 e 0.3 6.3 a 1.2 6.7 m s.4 6.1 e 0.4 4.s e 0.5 4.4 e e.S 5.7 e 0.4 431 5.0 e 1.6 5.1 e 4.2 9.1 e e.3 9.6 e e.2 0.7 e 0.3 e.2 e 9.3 7.9 e 0.5 0.9 a 1.2 0.e e 8.3 e.7 e 1.2 8.5 e 0.3 5.3 e e.2 6.0 m e.4 0.e a e.2 t 531 0.0 e 2.7 9.6 e 1.9 S.0 e 0.5 -e.3 e 0.5 9.5 e 1.6 9.5 e 0.9 0.7 e 0.2 9.8 a 0.2 9.6 e e.9 0.0 a s.4 l e.4 e 2.7 6.6 e 0.6 6.1 e e.6 6.1 e 0.7 l Sn1 7.e e 0.9 e.1 e e.3 9.1 e 4.2 7.0 e e.3 7 .1 e e .1 '

6.7 e 0.3 6.9 e 0.4 0.5 e 1.4 9.7 e e.4 5.7 e 0.6 5.7 e 0.6 5.9 e 1.0 6C1 7.3 e 2.4 0.9 e 1.9 4.2 a 0.6 e.e a 0.3 i 0.9 m e.7 e.2 e 0.3 e.9 e e.4 0.1 a 0.3 !

5.3 a 4.2 5.9 m e.4 7.4 e 4.2 7.5 e e.7 101 7.5 e 2.3 6.4 e 4.3 7.2 a 1.0 7.7 a e.6 4

7.7 e 0.4 0.4 a 0.2 c.7 e 0.1 7.5 e e.9 7.9 e 4.2 4.5 e 1.9 s.3 e 0.3 0.0 e 0.6 4.7 e 0.5 5.5 a 0.5 181 7.3 e 2.5 6.9 e e.0 6.0 e 0.0 9.3 e 1 1 7.e e 3.1 7.6 e 0.9 7.8 e 9.1 0.3 e 4.3 7.4 e e.2 6.4 a 1.3 4.2 a 0.5 5.9 e 1.0 6.5 e e.4 9C1 7.9 e 2.3 0.1 e 0.3 7.5 e e.4 7.2 e 0.3 e.4 e 0.9 e.3 e 0.4 7.8 e 0.2 0.5 m 0.5 9.0 e 9.1 0.9 e 1 3 5.5 e 1.9 5.9 e e.9 7.1 e 1.1 1983 7.7 e 2.2 0.7 m 9.3 e.9 e 0.6 6.9 a e.9 9.9 e 1.6 0.5 e e.3 7.5 e 0.3 e.2 e 9.3 4.9 e 0.3 5.6 e 0.6 7.2 e 0.6 7.e a e.2 1931 7.3 e 2.6 5.7 a 0.4 0.0 m e.4 7.4 e 9.3 7.4 e 0.7 0.4 e 0.3 0.3 e 1 1 5.6 e 0.7 5.3 e 0.9 7.3 a 0.4 7.2 a 0.2 0.5 a 1.1 0.2 e 8.2 10F3 7.3 e 2.3 5.7 e 0.6 9.8 e 2.0 e.e e 1.5 8.6 e 8.2 9.5 e 0.3 9.9 e e.3 7.0 a 0.7 e.e e 0.6 9.7 a 1.5 9.1 e 0.2 0.3 e 2.9 4.5 e 0.5 6.3 e 1.4 5.9 a e.9 1101 6.4 a e.1 7.e e 0.4 6.1 e 0.5 5.0 e 8.3 J 6.5 e 8.3 5.8 e 0.2 4.7 e 0.2 5.1 e 9.0 4.2 e 0.7 5.5 e 0.1 5.1 a G.9 6.9 e 1.1 t 13C1 5.e a 1.7 e.8 e 0.3 e.1 e e.3 7.9 e 0.4 0.2 a 0.3 7.7 a 4.2 0.5 e 0.3 6.9 e e.5 7.1 e e.3 7.2 e e.6 e.9 e 1.4 13E1 7.5 e 2.3 5.2 a 4.2 6.6 e 1.8 5.7 e 0.4 4.9 e 8.6 5.5 e 0.6 6.0 m e.3 5.2 e 0.1 4.9 e 0.2 4.7 e 0.3 4.s e 0.5 5.2 e 9.1 4 5.0 e 1.2 4.6 e 9.0 3.6 e 0.5 4.7 e e.5 1384 e.5 e 0.6 7.e e 0.1 7.0 m 9.3 6.5 e 0.4 e.7 e 1.9 7.4 e e.2 6.e m e.3 7.0 a 9.4 5.5 e 0.7 5.3 e 0.3 6.0 a 0.5 1481 4.0 e 2.3 5.4 e 1.5 0.2 a 0.5 7.2 e 0.0 7.6 e 4.1 8.5 e 0.4 9.7 e 4.1 7.1 a 0.4 7.6 a 1.2 9.2 e 0.7 e.6 e s.3 7.5 e 2.5 4.0 e 0.6 5.6 e 0.0 5.6 e s.6 15D1 1.6 e s.3 7.9 e e.2 7.9 e 0.2 7.0 e 9.4 6.2 e 0.2 0.0 e 0.0 7.4 e 0.4 7.4 a 1.4 5.4 e 1.5 4.7 a e.4 6.3 e 0.3 1682 6.7 e 2.1 5.s e 8.6 0.4 e 0.1 7.9 e e.3 7.7 e e.9 e.7 e 4.3 9.0 a 0.3 l 7.7 e 1.7 7.2 a 0.4 9.9 e 1.5 9.4 e 0.4 7.6 a 3.1 5.9 a 9.3 5.1 e e.3 4.9 m 9.9 16F1 7.7 e 0.4 e.2 a 0.3 7.5 e e.1 7.1 e e.1 6.7 e e.4 e.5 e 1.2 7.8 e 0.2 6.9 e 0.3 6.0 e 1.3 5.3 e e.e 6.8 e e.1 1701 7.0 e 2.0 5.s e e.6 7.1 a 9.3 6.4 e 0.9 6.6 e 0.2 7.4 e 0.1 7.7 e 0.4 5.6 e 0.0 8.2 e e.1 9.2 a 1.4 6.9 e 0.1 6.6 a 2.3 5.6 e 1.1 5.4 e 2.3 5.1 e e.e lest

1. MEAN AND TWO TIMES THE STANDARD DEVIATION OF TBE MONTELY RESULTS.

1 c - 21

.w NCgtfMLT TLD FE5ULTS FOR LINERICR OENERATiteG STATION. 1994 TABLE C.V111.1 RESULTS IN UNITS OF NILL 1-RotNTCEN/STD. NO. e 2 S.D.

AUG SEF CCT NOV DEC APR MkY JUN JUL JAN FEB NAR 57CTION MEAN e 2 8.D. (1)

Cors 1931 S.9 a 3.9 4.9 e 0.4 4.9 e 1.5 4.7 e 0.1 S.3 a 0.6 ..........

S.2 a 0.2 ..........

10.2 e 3.6 .......... S.9 e 8.3 ..........

S.6 e 0.1 ..........

6.4 e 0.4 .......... 6.7 e 0.4 .......... 5.7 e 9.2 .......... 5.3 e e.S -

6.9 e 0.2 7.7 e 0.5 a.3 e 0.3 7.7 e e.4 6.9 e 0.4 6.9 e 9.2 6.3 e 0.3 9.9 e 2.0 7.9 e 0.3 7.1 e 2.6 S.e e 9.5 5.4 e 1.0 S.3 e 0.3 1901 0.1 e 0.1 7.1 a 9.3 7.6 e 0.0 6.4 e 9.4 S.9 e 0.9 (2) 6.3 e e.2 7.3 e 9.5 S.s e 9.4 S.5 e 0.6 5.2 s 0.9 6.5 e 0.3 20D1 6.9 e 2.0 6.7 e 9.3 10.3 e 2.9 7.0 e 0.9 7.2 e e.2 9.5 e 1.4 9.7 e 0.7 7.8 e 6.2 ' 7.6 e 1.5 S.9 e 0.9 S.5 e 0.4 S.3 e e.1 7.1 e 9.5 26F1 7.3 e 2.9 7.2 e 4.2 7.2 e 0.1 6.4 a 0.2 7.2 e 0.5 7.6 e 0.2 6.d a 9.2 4.3 e 8.6 6.4 e 0.3 S.6 e 4.3 S.2 e 1.6 6.4 e 2.3 S.3 e 9.5 S.9 e 1.4 2131 S.3 a 0.3 7.1 e 9.1 7.4 e 0.6 6.3 e 0.3 10.4 e 1.9 7.5 e 0.0 7.9 e 9.1 7.6 e 0.2 S.0 s 9.2 5.9 e 1.0 4.9 e 1.9 6.6 e 8.2 2201 7.1 e 2.9 7.9 m 9.2 7.4 a 0.3 7.1 e 0.4 1.4 e 9.4 9.4 e 9.3 7.4 e e.2 S.3 e 0.2 6.6 e 0.3 6.3 e 0.2 9.7 e 1.6 6.0 e 2.7 4.6 e 1.9 4.7 e 0.1 23s2 7.9 e 0.2 6.7 e 9.2 6.9 e 0.3 ,

S.S e 4.1 9.2 e 1.4 7.1 e 0.9 7.9 e 0.9 7.2 e tot S.3 e 0.4 4.9 e 0.2 4.0 e 9.3 6.3 e 0.3 24D1 6.3 e 2.2 6.7 e 0.1 7.5 e 0.3 0.2 e 9.1 7.9 e e.1 7.5 a 4.6 6.2 e 9.4 S.9 e 9.2 0.1 e 1.3 7.4 e 8.3 6.6 e 2.S S.1 e 0.6 4.9 e 9.0 4.7 e 0.3 25s1 6.6 e 9.2 6.9 e 9.3 7.9 e 1.6 6.8 e 0.4 6.2 e 9.2 6.0 e 9.3 7.9 e 1.3 4.0 e 1.0 S.3 e 0.7 6.9 e 9.1 S.6 e 0.6 25D1 6.3 e 2.1 4.7 e 1.3 6.8 e 0.9 7.4 e 0.5 0.9 e 0.5 6.5 e 9.1 7.4 e 0.3 6.7 e 0.3 S.7 e 9.2 S.1 e 1.3 7.2 e 9.3 6.5 e 2.6 4.7 e 0.4 4.9 e 1.2 4.4 e 9.5 2601 7.3 a 0.3 7.3 e 0.2 7.6 e 2.6 7.0 a 0.1 6.9 e 9.2 7.9 e 9.4 9.3 a 0.1 5.5 e 0.4 4.9 e 0.5 6.5 a 8.2 6.2 e 9.4 assi 6.7 e 2.5 4.5 e 0.7 7.3 e 0.9 7.5 e 0.2 e.3 e 6.3 7.3 e 9.1 7.4 e 9.3 6.6 e 0.2 6.2 e 0.2 9.1 e 2.5 7.4 a 0.1 6.9 e 2.6 5.3 e 9.S 5.3 e 0.7 4.9 e 0.7 2002 6.7 e 8.5 7.3 e 4.3 0.0 e 1.6 7.1 a 0.3 6.5 e 0.3 7.3 e e.3 e.8 e 0.5 5.2 e 9.3 4.9 e e.1 6.4 e 9.4 S.9 e 4.3 2981 6.6 e 2.9 6.1 e 0.9 8.4 e 0.9 8.4 a 0.3 7.2 e 0.2 7.8 e 9.3 6.6 e 4.6 6.4 a 0.1 9.0 e 1.e 7.9 e 0.0 7.1 a 0.9 1.1 e 2.5 S.3 a 0.9 5.2 e 1.0 S.7 e 0.4 2991 7.6 e 0.8 7.5 e 0.3 9.9 e 1.1 7.7 e e.1 7.1 a 9.7 7.0 e 8.5 0.9 e 9.1 4.5 e 0.7 S.S e 0.3 6.6 e 9.3 6.6 e 9.3 2931 7.1 e 2.6 6.2 e 1.5 9.0 e 0.9 9.9 e 0.9 9.6 e 0.2 0.7 e 9.4 9.6 e 0.4 10.5 e 0.7 9.0 e 8.2 ' 9.4 e e.4 0.5 a 3.3 S.6 e 0.9 S.9 e 0.6 6.3 e 0.2 0.6 e 9.1 31D1 e.0 a 0.6 9.4 m S.3 7.9 e 1.0 0.6 e 4.1 9.1 e 9.3 7.9 e 0.1 7.0 e 0.3 9.6 e 1.4 33D2 7.6 e 2.7 S.e e 0.4 S.e e 1.1 S.4 e e.6 7.4 e 0.3 S.9 e 0.4 6.3 e 0.3 7.2 e 0.3 6.1 e 0.2 6.6 e 0.4 4.9 e 0.3 S.4 e 4.1 S.3 e 0.3 7.6 e 1.5 6.1 a 0.3 3281 S.9 e 3.9 4.7 e 0.4 4.6 e 1.2 7.1 a 9.3 19.0 e 9.5 S.2 a 0.1 7.3 e 4.1 0.6 e 0.3 e.S e 1.1 9.1 e 9.2 9.4 e e.e 5.9 e 0.9 S.2 e 8.5 S.6 e 0.9 7.3 a 0.5 3201 7.5 e 2.8 0.4 e s.6 9.9 e 0.1 7.6 e 0.7 9.6 e 8.2 9.3 e 2.3 9.2 e 4.2 6.9 e 1.4 S.5 e 0.7 7.1 e 0.5 1.5 a 4.6 0.0 e 1.0 3452 7.0 e 2.2 6.6 e 9.2 0.1 e 0.2 9.7 e 1.1 7.7 e 8.2 7.8 e 9.5 6.7 e 8.2 6.9 e 0.3 9.3 e 1.7 7.9 e 0.5 7.2 e 0.2 3431 7.2 e 2.6 ,5.4 e 0.6 S.6 e 1.9 S.2 e 9.2 6.6 e 9.3 9.9 e 1.6 9.2 a 0.2 7.3 e 9.1 0.2 e 0.3 S.S e 9.7 7.5 e 0.7 9.3 e 0.5 S.S e 0.9 S.0 a 0.7 S.9 e 9.2 6.9 e 9.1 3531 1.2 e 2 9 7.7 e 9.2 tot e 0.3 9.3 e 0.3 9.6 e 4.3 3.4 e e.3 6.9 e 0.9 7.6 e 9.2 7.4 e 0.2 9.9 e 1.1 9.3 e 4.2 3SF1 7.9 e 2.9 S.7 e 0.5 S.9 e 9.5

1. MAN AND TWO Tim TBS STANDARD DEVIATION OF TWE WOWTEL7 RSSULTS.

2. SSS PROGRAN RECRPT!fMt3 SSCTION FOR EIF1ANRTION.

C - 22

,- n.v, , - p-----, ,..m. - - , , r -- , mm, w- 4 . , . -,- ,-n - - , , , - - - , - , ,- .e . - - . - - - , - - - - - , - - - - - - - . - - - - - - - -

1994 TABLE C-VIII.2 QUARTERLY TLD RESULTS FOR LIMERICK GENER7 TING STATION, RESULTS IN UNITS OF MILLI-ROENTGEN /STD. No.

2 S.D.

APR-JUN JUL-SEP OCT-DEC STATION MEAN z JAN-MAR CODE 2 S.D. (1) .......... .......... .......... ,

....... .......... 6.9 e 0.8 36S2 6.0 e 2.2 4.5

0.1 5.7 a 0.2 6.8 2 0.3 6.0 s 0.2 4.9 s 0.5 6.2 a 0.3 2B1 5.4 a 1.5 4.7

0.3 6.4 a 1.0 2E1 5.5 s 2.1 4.2 a 0.4 5.3 a 0.1 6.3 2 1.1 6.6

0.3 3S1 5.8 a 2.2 4.4 2 0.1 5.3 2 0.3 6.7 a 0.3 5.1

0.3 3.7

0.2 4.0 s 0.4 5.3 2 0.1 !

4E1 4.5 e 1.6 7.7 2 0.3 7.2 z 0.2 5S1 6.4 e 2.7 4.7 2 0.2 6.1 e 1.1 6.7 e 0.7 7.8

0.3 7.4 2 0.8 6.8 2 2.1 5.4 s 0.5 SE1 5.0 2 0.2 5.3 a 0.1 6.9 2 0.2 6.7 e 0.6 .

6C1 6.0 e 1.9 6.9

0.5 7S1 6.0 a 2.4 4.7 2 0.1 5.3 2 0.7 7.1 a 0.2 6.6 2 0.2 7El 5.7 2.2 4.6 e 0.2 5.0 z 1.0 6.7

0.3 6.1 = 0.5 5.5 z 0.7 6.4 a 0.3 9C1 5.6 e 1.6 4.6 e 0.3 5.5 a 0.4 6.9 0.4 6.7 e 0.9 10S3 6.0 a 1.9 4.9 z 0.1 6.8 a 1.0 5.7 z 0.5 6.8 e 0.3 10E1 6.0 a 2.0 4.7

0.3 5.9 a 0.3 7.3 a 1.0 6.8 a 0.3 10F3 6.2 a 2.3 4.7 a 0.2 6.1

0.9 7.5 a 0.5 7.2 a 0.6 11S1 6.5 a 2.2 5.1 a 0.3 4.3 a 0.6 5.0 s 0.2 5.1 a 0.6 13C1 4.5

1.4 3.6 a 0.1 5.6 e 0.5 6.7 a 0.3 6.7 e 0.3 13E1 6.0 e 1.6 5.1

0.4 3.6 2 0.4 4.0

0.2 4.5 3 0.7 13H4 4.0 2 0.7 4.1 a 0.2 5.0

0.3 6.1 2 0.3 5.9 e 0.3 14S1 5.3 e 1.8 4.2

0.2 5.3 a 1.4 6.2 s 1.0 6.6 s 0.2 15D1 5.8 a 1.6 4.9 2 0.2 6.1 s 0.3 6.0 s 0.2 16S2 5.4 a 1.6 4.5 0.5 5.0 a 0.2 1.2 6.1 = 0.5 7.1 0.2 7.1 16F1 6.1 e 2.6 4.3 s 0.1 4.3 a 0.1 5.1 0.2 6.1 2 0.1 6.2 m 0.3 17B1 5.4 e 1.8 5.8 e 0.4 18S1 5.1 s 1.8 4.1 0.1 4.6 e 0.7 5.9 2 0.2 0.3 4.4 s 0.5 4.7 2 0.3 18G1 4.1 2 1.0 3.6 0.0 3.8 6.1 2 0.4 4.5 0.2 5.1 a 0.7 6.3 a 0.3 19D1 5.5 e 1.7 5.9

0.3 4.6 2 0.5 4.9 0.3 5.2 s 1.9 20D1 5.1 2 1.1 6.3 2 0.3 6.2 2 0.4 20F1 5.6 z 1.7 4.5 0.2 5.3

0.6 5.9 a 0.2 3.9 2 0.2 4.3 a 0.5 5.4 a 1.0 21S1 4.9 z 1.9 6.2 a 0.4 5.9

0.4 5.2 s 2.0 4.5 z 0.1 4.2 a 0.5 22G1 6.0

0.3 6.0 e 1.1 4.3 e 0.1 4.7 e 0.3 23S2 5.3 e 1.8 5.0 s 1.6 4.2 2 0.2 4.5 s 0.6 5.7

0.2 5.7 s 0.5 24D1 4.2 2 0.2 4.8 a 0.2 6.1

0.2 5.9 2 0.2 25S1 5.3 2 1.8 4.4 a 0.2 4.2 s 0.4 5.5 2 0.2 5.5 e 0.1 25D1 4.9 2 1.4 4.1 z 0.4 4.3 s 0.5 6.0 a 0.1 5.9 e 0.3 26S3 5.1

2.0 6.7 0.5 6.2 a 0.2 5.6 2 2.2 4.3

0.2 5.1 2 0.8 26B1 6.1 a 0.2 28D2 5.4 2 1.9 4.3 z 0.2 5.0 a 0.5 6.4 e 1.0 5.8 m 0.2 4.5 3 0.8 5.8 0.2 29si 5.1 a 1.7 4.2

0.1 5.0 s 0.4 6.6 a 0.2 6.0 2 0.5 29B1 5.5 s 1.8 4.6 0.1 5.0 z 0.8 6.3 a 0.2 6.1 a 0.1 29El 5.5 2 1.6 4.7 z 0.3 8.0 2 0.3 7.6 s 0.7 31D1 6.9 e 2.2 5.5 s 0.2 6.6 2 0.8 5.3

0.4 6.8 z 1.0 6.4 = 0.2 i 31D2 5.8 e 1.9 4.8 s 0.1 4.1 : 0.5 5.1 s 0.3 5.0 a 0.5 32S1 4.5 s 1.2 4.0 s 0.3 5.5 s 0.7 6.9 2 0.3 6.2 a 1.7 32G1 5.9 s 1.7 5.0 t 0.2 5.4 a 0.8 6.9 2 0.8 6.7 a 0.4 34S2 6.1 z 1.7 5.3 s 0.3 6.3 a 0.4 5.4 s 0.5 6.4 s 0.2 '

34E1 5.7 2 1.7 4.6 s 0.5 5.3 s 0.9 6.7 2 0.2 6.4 0.2 35B1 5.8 z 1.9 4.6 0.1 7.1 a 0.6 6.8 e 0.2 35F1 6.2 z 2.1 4.7 e 0.2 6.2 a 0.9

1. MEAN AND TWO TIMES THE STANDARD DEVIATION OF THE QUARTERLY RESULTS l

t C - 23 o

. . _ _ , _ . .. __ ._. . . . _ - ._ . -,___-m.. _ _ -._ _ __ - ~ . _........

+

t 7

I I

r TABLE C-VIII.3 1994 MEAN TLD RESULTS FRCat LIMERICK GENERATING STATION i FOR TME SITE BOUNDARY, MIDDLE, AND OUTER RINGS RESULTS IN UNITS OF MILLI-ROENTGEN /STD. MO. a 2 STANDARD DEVIATIONS

'OF THE STATION DATA i SITE- MIDDLE RING OUTER RING ,

SAMPLE TYPE REPOSURE PERIOD-

,-(

JAN 1994' 5.9 a 2.1 5.6 a 0.9 5.6 a 1.6 MONTMLY i FEB 1994 5.3 a 1.2 5.3 a 1.1 5.1 a 2.0 '

MAR 1994 5.2 a 1.1 5.1 a 1.0 -5.2 a 1.2 6.7 a 1.5 6.8 a 1.3 6.6 a 3.1 APR 1994 6.3 a 2.9 MAY 1994 6.8 a 2.4 6.7 a 1.6 JUN 1994. 0.5 a 1.1 8.7 a 1.9 9.0 a 4.7 !

JUL 1994 7.8 a 1.7 8.0 a 1.5 7.2 a 3.5 .!

AUG 1994 7.3 a 1.6 7.3 a 1.2~ 6.7 a 3.0 l SEP 1994 7.9 a 1.6 0.0 a 1.4 7.6 a 3.4 '

OCT 1994' 8.4 a 1.5 0.5 a 1.4 7.8 a 2.9 7.6 a 1.4 7.0 a 3.1 i NOV 1994 7.5 a 1.9 DEC 1994 7.5 a 1.2 7.4 a 1.4 7.1 a 3.0 .

[

JAN-MAR 1994 4.4 a 0.0 4.5 a 0.0 4.5 a 1.4 QUARTERLY 5.2 a 1.2 4.8 a 2.6 j APR-JUN 1994 5.0 a 1.2 i JUL-SEP 1994 6.4 a 1.5 6.4 a 1.3 5.9 a 3.2 6.3 a 1.1 5.7 a 2.4 ~!

OCT-DEC 1994 6.3 a 1.2 i!

?

TABLE C-VIII.4

SUMMARY

OF THE 1994 AMBIENT DOSIMETRY PROGRAM FOR l

LIMERICK GENERATING STATION RESULTS IN UNITS OF NILLI-ROENTGEN /STD. MO. :

PERIOD PRE-OP :

NO. OF SAMPLES PERIOD PERIOD MEAN MEAN }

SAMPLE a-2 S.D. (1)

LOCATION ANALYEED M:3rIMUM MAEIMUM e 2 S.D. l TYPE r

............ ............ .............. ....... ....... .......... ............ 7.6 a 2.4 i SITE 192 4.3 10.1 7.1 e 2.7 NONTELY 10.5 7.1 a 2.6 7.0 a 2.2 i MIDDLE RING 323 4.2 60 3.6 10.4 6.8 a 3.5 7.8 a 3.0 OUTER RING {

5.5 a 2.0 ;

SITE 64 3.9 7.7 QUARTERLY .5.6 a 1.9 MIDDLE RING 100 3.6 0.0 7.8 5.2 a 2.6 OUTER RING 20 3.6

)

(1) THE PRE-OPERATIONAL MEAN MAS CALCULATED FROM TLD READINGS 1-15-82 TO 12-02-84. 1 SITE ROUNDARY RING STATIONS - 381, 531, 751,1083,1181,1431,1682,1881,

- 2151,2332,2581,2683,2931,3281,3482,3681,

- 3682. ,

MIDDLE RING STATIONS - 231, 2E1, 4E1, 6C1, 731, 9C1,10E1,10F3,

- 13C1,13E1,15D1,16F1,1731,19D1,2CD1,20F1,

- 24D1,25D1,2651,29D2,2931,29E1,31D1,31D2,

- 34E1,3551,35F1.

- 5N1,1354,1001,22G1,32G1. !

OUTER RING STATIONS !

C - 24 7 i

f r

TABLE'C-II'.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 !

SURFACE WATER (GROSS BETA AND GAMMA) 10F2 1331 24s1

. COLLECTION .

PERIOD JAN 94 12/27-01/31 12/27-01/31 12/27-01/31 FEB 94 01/31-02/28 01/31-02/28 01/31-02/28 ,

MAR 94 02/28-03/29 02/28-03/20 02/28-03/28 i APR 94 03/29-05/02 03/28-05/02 03/28-05/02 ;

MAY 94 05/02-05/31 05/02-05/31 05/02-05/31 l JUN 94 05/31-06/28 05/31-06/28 05/31-06/20 l JUL 94 06/28-08/01 06/28-06/01 06/28-08/01 l AUG 94 08/01-08/30 08/01 00/30 08/01-08/30 !

SEP 94 08/30-09/27 08/30-09/27 08/30-09/27 DCT 94 09/27-10/31 09/27-10/31 09/27-10/31 ;

NOV 94 10/31-11/28 10/31-11/28 10/31-11/28 :

DEC 94 11/28-12/28 11/28-12/28 11/28-12/28 i

SURFACE WATER (TRITIUM) '

I JAN-MAR 94 12/27-03/29 12/27-03/28 12/27-03/28 t 03/28-06/28 03/29-06/28 03/28-06/28 APR-JUN 94 06/28-09/27 JUL-SEP 94 06/20-09/27 06/20-09/27 i OCT-DEC 94 09/27-12/20 09/27-12/28 09/27-12/28

)

1 DRINKING MATER (GROSS BETA AND GAMMA) !

15F7 16C2 28F3 COLLECTION 13H2 15F4 I PERIOD 12/27-01/31 12/27-01/31 12/27-01/31 .............

12/27-01/31 i JAN 94 12/27-01/31 01/31-02/28 01/31-02/28 01/31-02/28 {'

FEB 94 01/31-02/28 01/31-02/28 02/28-03/28 02/20-03/29 02/28-03/29 02/28-03/29 02/28-03/29 03/29-05/02 MAR 94 03/29-05/02 03/28-05/02 APR 94 03/29-05/02 03/29-05/02 05/02-05/31' 05/02-05/31 05/02-05/31 05/02-05/31 05/02-05/31 05/31-06/28 MAY 94 05/31-06/28 05/31-06/28 JUN 94 05/31-06/28 05/31-06/28 06/28-08/01 06/20-00/01 JUL 94 06/28-08/01 06/28-08/01 06/28 08/01 08/01-08/30 08/01-08/30 08/01-08/30 08/01-00/30 AUG 94 08/01-00/30 08/30-09/27 08/30-09/27 08/30-09/27 SEP 94 08/30-09/27 08/30-09/27 09/27-10/31 09/27-10/31 OCT 94 09/27-10/31 09/27-10/31 09/27-10/31 10/31-11/28 10/31-11/28 10/31-11/28 10/31-11/28 NOV 94 10/31-11/28 11/28-12/28 11/28-12/28 11/28-12/28 DEC 94 11/28-12/28 11/28-12/28 DRINKING MATER (TRITIUM) '

12/27-03/29 12/27-03/28 12/27-03/29 JAN-MAR 94 12/27-03/29 12/27-03/29 03/28-06/28 03/29-06/28 ;

03/29 06/28 03/29-06/28 03/29-06/2B 06/28-09/27 APR-JUN 94 06/28-09/27 06/28-09/27 06/28-09/27 JUL-SEP 94 06/28-09/27 09/27-12/28 09/27-12/28 09/27-12/28 OCT-DIC 94 09/27-12/28 09/27-12/28 !

C - 25

),

TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES 1994 COLLECTED IN :

THE VICINITY OF LIMERICK GENERATING STATION, AIR PARTICULATE AND AIR 10 DINE

.............................. [

j GROUF I - ON-SITE LOCATIONS .

1481 3482 WEEK 10S3 1181 .............

.....- ............. 01/03-01/10 01/03-01/10 01/03-01/10 01/03-01/10 -

01 01/10-01/17 01/10-01/17 01/10-01/17 f 02 01/10-01/17 01/17-01/24 01/17-01/24 03 01/17-01/24 01/17-01/24 01/24-01/31 01/24-01/31 01/24-01/31 01/24-01/31 '

04 01/31-02/07 01/31-02/07 01/31-02/07

05 01/31-02/07 02/07-02/14 02/07-02/14 06 02/07-02/14 02/07-02/14 02/14-02/21 02/14-02/21 02/14-02/21 02/14-02/21 07 02/21-02/28 02/21-02/28 02/21-02/28 08 02/21-02/28 02/28-03/07 02/28-03/07 09 02/28-03/07 02/28-03/07 03/07-03/14 03/07-03/14 03/07-03/14 03/07-03/14 10 03/14-03/21 03/14-03/21 03/14-03/21 11 03/14-03/21 03/21-03/28 03/21-03/28' l 12 03/21-03/28 03/21-03/28 03/28-04/04 i 03/28-04/04 03/28-04/04 03/28-04/04 13 04/04-04/11 04/04-04/11 04/04-04/11 14 04/04-04/11 04/11-04/18 04/11-04/18 15 04/11-04/18 04/11-04/18 04/18-04/25 04/18-04/25 04/18-04/25 04/18-04/25 16 04/25-05/02 04/25-05/02 04/25-05/02 17 04/26-05/02 05/02-05/09 05/02-05/09 18 05/02-05/09 05/02-05/09 05/09-05/16 05/09-05/16 05/09-05/16 05/09-05/16 19 05/16-05/23 05/16-05/23 05/16-05/23 20 05/16-05/23 05/23-05/31 05/23-05/31 21 05/23-05/31 05/23-05/31 05/31-06/06 05/31-06/06 05/31-06/06 05/31-06/06 22 06/06-06/13 06/06-06/13 06/06-06/13 23 06/06-06/13 06/13-06/20 06/13-06/20 24 06/13-06/20 06/13-06/20 06/20-06/27 06/20-06/27 06/20-06/27 06/20-06/27 25 06/27-07/05 06/27-07/05 06/27-07/05 26 06/27-07/05 07/05-07/11 27 07/05-07/11 07/05-07/11 07/11-07/18 07/11-07/18 07/11-07/18 07/11-07/18 28 07/18-07/25 07/18-07/25 07/18-07/25 '

29 07/18-07/25 07/25-08/01 07/25-08/01 30 07/25-08/01 08/01-08/08 08/01-08/08 08/01-08/08 08/01-08/08 31 08/08-08/15 08/08-08/15 OR/08-08/15 32 08/08-08/15 08/15-08/22 08/15-08/22 33 08/15-08/22 08/15-08/22 08/22-08/29 08/22-08/29 08/22-08/29 08/22-08/29 34 08/29-09/06 08/29-09/06 08/29-09/06 35 08/29-09/06 09/06-09/12 09/06-09/12 36 09/06-09/12 09/06-09/12 09/12-09/19 09/12-09/19 09/12-09/19 09/12-09/19 37 09/19-09/26 09/19-09/26 09/19-09/26 38 09/19-09/26 09/26-10/03 09/26-10/03 39 09/26-10/03 09/26-10/03 10/03-10/10 10/03-10/10 10/03-10/10 10/03-10/10 40 10/10-10/17 10/10-10/17 10/10-10/17 41 10/10-10/17 10/17-10/24 10/17-10/24 42 10/17-10/24 10/17-10/24 10/24-10/31 10/24-10/31 10/24-10/31 10/24-10/31 43 10/31-11/07 10/31-11/07 10/31-11/07 44 10/31-11/07 11/07-11/14 11/07-11/14 '

45 11/07-11/14 11/07-11/14 11/14-11/21 11/14-11/21 11/14-11/21 11/14-11/21 46 11/21-11/28 11/21-11/28 11/21-11/28 47 11/21-11/28 11/28-12/05 11/28-12/05 48 11/28-12/05 11/28-12/05 12/05-12/12 12/05-12/12 12/05-12/12 12/05-12/12 49 12/12-12/19 12/12-12/19 12/12-12/19 50 12/12-12/19 12/19-12/27 12/19-12/27 51 12/19-12/27 12/19-12/27 12/27-01/03 52 12/27-01/03 12/27-01/03 12/27-01/03 C - 26 l

i TABLE C-IX,1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN !

THE VICINITY OF LIMERICK GENERATING STATION, 1994 AIR PARTICUIATE AND AIR IODINE GROUP II - INTERMEDIATE DISTANCE LOACATIONS

~

13C1 15D1 17B1 WEEK 231 6C1 9C1 ...----------

01/03-01/10 01/03-01/10 01/03-01/10 01/03-01/10 01 0'./03-01/10 01/03-01/10 01/10-01/17 01/10-01/17 01/10-01/17 01/10-01/17 01/10-01/17 01/10-01/17 02 01/17-01/24 01/17-01/24 01/17-01/24 01/17-01/24 03 01/17-01/24 01/17-01/24 01/24-01/31 01/24-01/31 01/24-01/31 01/24-01/31 01/24-01/31 01/24-01/31 04 01/31-02/07 01/31-02/07 01/31-02/07 01/31-02/07 05 01/31-02/07 01/31-02/07 02/07-02/14 02/07-02/14 02/07-02/14 02/07-02/14 02/07-02/14 02/07-02/14 06 02/14-02/21 02/14-02/21 02/14-02/21 02/14-02/21 07 02/14-02/21 02/21-02/28 02/21-02/28 02/21-02/28 02/21-02/28 02/21-02/28 02/21-02/28 08 02/28-03/07 02/28-03/07 02/28-03/07 02/28-03/07 ,

09 02/28-03/07 02/28-03/07 03/07-03/14 03/07-03/14 03/07-03/14 03/07-03/14 03/07-03/14 03/07-03/14 10 03/14-03/21 03/14-03/21 03/14-03/21 03/14-03/21 11 03/14-03/21 03/14-03/31 03/21-03/28 03/21-03/28 03/21-03/28 03/21-03/28 03/21-03/28 03/21-03/28 12 03/28-04/04 03/28-04/04 03/28-04/04 03/28-04/04 i 13 03/28-04/04 03/28-04/04 04/04-04/11 04/04-04/11 (

04/04-04/11 04/04-04/11 04/04-04/11 04/04-04/11 14 04/11-04/18 04/11-04/18 04/11-04/18 04/11-04/18 15 04/11-04/18 04/11-04/18 04/18-04/25 04/18-04/25 04/18-04/25 04/18-04/25 04/18-04/25 04/18-04/25 16 04/25-05/02 04/25-05/02 04/25-05/02 04/25-05/02 17 04/25-05/02 04/25-05/02 05/02-05/09 05/02-05/09 05/02-05/09 05/02-05/09 05/02-05/09 05/02-05/09 ,

18 05/09-05/16 05/09-05/16 05/09-05/16 05/09-05/16 19 05/09-05/16 05/09-05/16 05/16-05/23 05/16-05/23 20 05/16-05/23 05/16-05/23 05/16-05/23 05/16-05/23 05/23-05/31 05/23-05/31 05/23-05/31 05/23-05/31 i 21 05/23-05/31 05/23-05/31 05/31-06/06 05/31-06/06 >

05/31-06/06 05/31-06/06 .05/31-06/06 05/31-00 (?

22 06/06-06/13 06/06-0(- 06/06-06/13 06/06-06/13 23 06/06-06/13 06/06-06/13 06/13-06/20 06/13-06/20 06/13-06/20 06/13-06/20 06/13-06/20 06/13-Cl. !

4 24 06/20-06/27 06/20-06/27 06/20-06/27 06/20-06/27 25 06/20-06/27 06/20-06/27 06/27-07/05 06/27-07/05 06/27-07/05 06/27-07/05 06/27-07/05 06/27-07/05 26 07/05-07/11 07/05-07/11 07/05-07/11 07/05-07/11 27 07/05-07/11 07/05-07/11 07/11-07/18 07/11-07/18 07/11-07/18 07/11-07/18 07/11-07/18 07/11-07/18 28 07/18-07/25 07/18 07/25 07/18-07/25 07/18-07/25 29 07/18-07/25 07/10-07/25 07/25-08/01 07/25-08/01 07/25-08/01 07/25-08/01 07/25-08/01 07/25-08/01 30 08/01-08/08 08/01-08/08 08/01-08/08 08/01-08/05 31 08/01-08/08 08/01-08/08 08/08-08/15 08/08-08/15 08/08-08/15 08/08-08/15 08/08-08/15 32 08/15-08/22 08/15-08/22 08/15-08/22 08/15-08/22 33 08/15-08/22 08/15-08/22 08/22-08/29 08/22-08/29 08/22-08/29 08/22-08/29 08/22-08/29 08/22-08/29 34 08/29-09/06 08/29-09/06 06/29-09/06 08/29-09/06 35 08/29-09/06 08/29-09/06 09/06-09/12 09/06-09/12 09/06-09/12 09/06-09/12 09/06-09/12 09/06-09/12 36 09/12-09/19 09/12-09/19 09/12-09/19 09/12-09/19 37 09/12-09/19 09/12-09/19 09/19-09/26 09/19-09/26 38 09/19-09/26 09/19-09/26 09/19-09/26 09/19-09/26 09/26-10/03 09/26-10/03 09/26-10/03 09/26-10/03 39 09/26-10/03 10/03-10/10 10/03-10/10 10/03-10/10 40 10/03-10/10 10/03-10/10 10/03-10/10 10/10-10/17 10/10-10/17 10/10-10/17 10/10-10/17 10/10-10/17 41 10/10-10/17 10/17-10/24 10/17-10/24 10/17-10/24 42 '10/17-10/24 10/17-10/24 10/17-10/24 10/24-10/31 10/24-10/31 10/24-10/31 10/24-10/31 10/24-10/31 43 10/24-10/31 10/31-11/07 10/31-11/07 10/31-11/07 44 10/31-11/07 10/31-11/07 10/31-11/07 11/07-11/14 11/07-11/14 11/07-11/14 11/07-11/14 11/07-11/14 45 11/07-11/14 11/14-11/21 11/14-11/21 11/14-11/21 46 11/14-11/21 11/14-11/21 11/14-11/21 11/21-11/28 11/21-11/28 11/21-11/28 11/21-11/28 11/21-11/28 47 11/21-11/28 11/28-12/05 11/28-12/05 11/28-12/05 48 11/28-12/05 11/28-12/05 11/28-12/05 12/05-12/12 12/05-12/12 12/05-12/12 12/05-12/12 12/05-12/12 49 12/05-12/12 12/12-12/19 12/12-12/19 12/12-12/19 50 12/12-12/19 12/12-12/19 12/12-12/19 12/19-12/27 12/19-12/27 12/19-12/27 12/19-12/27 12/19-12/27 51 12/19-12/27 12/27-01/03 12/27-01/03 12/27-01/03 52 12/27-01/03 12/27-01/03 12/27-01/03 C - 27

TABLE C-IX,1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN l THE VICINITY CP LIMERICK GENERATING STATION, 1994 AIR PARTICULATE AND AIR IODINE GROUP II - INTERMEDIATE DISTANCE LOACATIONS 26B1 29B1 31D1 35B1 , l WEEK 20D1 .............

01/03-01/10 01/03-01/10 01/03-01/10 01/03-01/10 01/03-01/10 01 01/10-01/17 01/10-01/17 02 01/10-01/17 01/10-01/17 01/10-01/17 01/17-01/24 01/17-01/24 01/17-01/24 01/17-01/24 03 01/17-01/24 01/24-01/31 01/24-01/31 04 01/24-01/31 01/24-01/31 01/24-01/31 01/31-02/07 01/31-02/07 01/31-02/07 01/31-02/07 01/31-02/07 05 02/07-02/14 06 02/07-02/14 02/07 02/14 02/07-02/14 02/14-02/21 02/14-02/21 02/14-02/21 02/14-02/21 07 02/14-02/21 02/21-02/28 02/21-02/28 08 02/21-02/28 02/21-02/28 02/21-02/28 02/28-03/07 02/28-03/07 02/28-03/07 02/28-03/07 02/28-03/07 09 03/07-03/14 10 03/07-03/14 03/07-03/14 03/07-03/14 03/07-03/14 03/14-03/21 03/14-03/21 03/14-03/21 03/14-03/21 ,

11 03/14-03/21 03/21-03/28 03/21-03/28 !

12 03/21-03/28 03/21-03/28 03/21-03/28 03/28-04/04 03/28-04/04 03/28-04/04 03/28-04/04 l 13 03/28-04/04 04/04-04/11 04/04-04/11 i 14 04/04-04/11 04/04-04/11 04/04-04/11 04/11-04/18 04/11-04/18 04/11-04/18 04/11-04/18 15 04/11-04/18 04/18-04/25 04/18-04/25 16 04/18-04/25 04/18-04/25 04/18-04/25 .

i 04/25-05/02 04/25-05/02 04/25-05/02 04/25-05/02 17 04/25-05/02 05/02-05/09 05/02-05/09 18 05/02-05/09 05/02-05/09 05/02-05/09 05/09-05/16 05/09-05/16 05/09-05/16 05/09-05/16 05/09-05/16 19 05/16-05/23 05/16-05/23 20 05/16-05/23 05/16-05/23 05/23-05/31 21 05/23-05/31 05/23-05/31 05/23-05/31 05/23-05/31 05/31-06/06 05/31-06/06 05/31-06/06 05/31-06/06 05/31-06/06 22 06/06-06/13 23 06/06-06/13 06/06-06/13 06/06-06/13 06/06-06/13 06/13-06/20 06/13-06/20 06/13-06/20 06/13-06/20 24 06/13-06/20 06/20-06/27 06/20-06/27 25 06/20-06/27 06/20-06/27 06/20-06/27 06/27-07/05 06/27-07/05 06/27-07/05 06/27-07/05 .

26 06/27-07/05 07/05-07/11 07/05-07/11 27 07/05-07/11 07/05-07/11 07/05-07/11 ,

07/11-07/18 07/11-07/18 07/11-07/18 07/11-07/18 28 07/11-07/18 07/18-07/25 07/18-07/25 29 07/18-07/25 07/18-07/25 07/18-07/25 07/25-08/01 07/25-08/01 07/25-08/01 07/25-08/01 30 07/25-08/01 08/01-08/08 08/01-08/08 31 08/01-08/08 08/01-08/08 08/01-08/08 08/08-08/15 08/08-08/15 08/08-08/15 08/08-08/15 32 08/08-08/15 08/15-08/22 08/15-08/22 33 08/15-08/22 08/15-08/22 08/15-08/22 08/22-08/29 08/22-08/29 08/22-08/29 08/22-08/29 34 08/22-08/29 08/29-09/06 08/29-09/06 35 08/29-09/06 08/29-09/06 08/29-09/06 09/06-09/12 09/06-09/12 09/06-09/12 09/06-09/12 36 09/06-09/12 09/12-09/19 09/12-09/19 37 09/12-09/19 09/12-09/19 09/12-09/19 09/19-09/26 09/19-09/26 09/19-09/26 09/19-09/26 38 09/19-09/26 09/26-10/03 09/26-10/03 39 09/26-10/03 09/26-10/03 09/26-10/03 10/03-10/10 10/03-10/10 10/03-10/10 10/03-10/10 40 10/03-10/10 10/10-10/17 10/10 10/17 41 10/10-10/17 10/10-10/17 10/10-10/17 10/17-20/24 10/17-10/24 10/17-10/24 10/17-10/24 42 10/17-10/24 10/24-10/31 10/24-10/31 43 10/24-10/31 10/24-10/31 10/24-10/31 10/31-11/07 10/31-11/07 10/31-11/07 10/31-11/07 44 10/31-11/07 11/07-11/14 11/07-11/14 11/07-11/14 45 11/07-11/14 11/07-11/14 11/14-11/21 46 11/14-11/21 11/14-11/21 11/14-11/21 11/14-11/21 11/21-11/28 11/21-11/28 11/21-11/28 11/21-11/28 47 11/21-11/28 11/28-12/05 11/28-12/05 11/28-12/05 48 11/28-12/05 11/28-12/05 12/05-12/12 49 12/05-12/12 12/05-12/12 12/05-12/12 12/05-12/12 12/12-12/19 12/12-12/19 12/12-12/19 12/12-12/19 50 12/12-12/19 12/19-12/27 12/19-12/27 51 12/19-12/27 12/19-12/27 12/19-12/27 12/27-01/03 12/27-01/03 12/27-01/03 12/27-01/03 52 12/27-01/03 C - 28

(

TABLE C-IX.1- StBGEARY OF COLLECTION DATES FOR SAMPLES COLLECTED IN TER VICINITY OF LIMERICK GENERATING STATICOT, 1994 i

f

. AIR IARTICULkTE AND AIR IODINE

?

GROUP III - CONTROL LOACATIONS !

V WEEK 13M4 2201 '

01 '01/03-01/10 01/03-01/10 02 01/10-01/18 01/10-01/17 I 03 01/18-01/24 01/17-01/24 04 01/24-01/31 01/24-01/31 05 01/31-02/07 01/31-02/07 i 06- 02/07-02/14 02/07-02/14 !

07 02/14-02/22 02/14-02/21 ,

08 02/22-02/28 02/21-02/28 09 02/28-03/07 02/28-03/07 'l 10 03/07-03/14 03/07-03/14 #

11: 03/14-03/21 03/14-03/21 12 03/21-03/28 03/21-03/28 ;

13 03/28-04/04 03/28-04/04 ;

14 04/04-04/11 04/04-04/11 l 15 04/11-04/18 04/11-04/18 4 I

16 C4/18-04/25 04/18-04/25 17 04/25-05/02 04/25-05/02 i 18 05/02-05/09 05/02-05/09 .

19 05/09-05/16 05/09-05/16' }

20 05/16-05/23 05/16-05/23 !

21 05/23-05/31 05/23-05/31

22 05/31-06/06 05/31-06/06 '

23 06/06-06/13 06/06-06/13 24 06/13-06/20 06/13-06/20 25 06/20-06/27 06/20-06/27 .

26 06/27-07/05 06/27-07/05 27 07/05-07/11 07/05-07/11 i 28 07/11-07/18 07/11-07/18 l 29 07/18-07/25 07/18-07/25 30 07/25-08/01 07/25-08/01 ,

31 08/01-08/08 08/01-08/08 32 08/08-08/15 08/05-08/15 33 08/15-08/22 08/15-08/22 4 34 08/22-08/29 08/22-05/29 35 08/29-09/06 08/29-09/06 ;

36 09/06-09/12 09/06-09/12 1 37 09/12-09/19 09/12-09/19 38 09/19-09/26 -09/19-09/26 l 09/26-10/03 t

39 09/26-10/03 40 10/03-10/10 10/03-10/10 '

l 41 10/10-10/17 10/10-10/17 10/17-10/24 10/17-10/24 )

42 43 10/24-10/31 10/24-10/31 l 44 10/31-11/07 10/31-11/07 l 45 11/07-11/14 11/07-11/14 l 46 11/14-11/21 11/14-11/21 ]'

47 11/21-11/28 11/21-11/28 48 11/28-12/05 11/28-12/05 49 12/05-12/12 12/05-12/12 50 12/12-12/19 12/12-12/19 51 12/19-12/27- 12/19-12/27 52 12/27-01/04 12/27-01/03 l

i C - 39 I

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. Q.M

l TABLE C-IX.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 TLD - QUARTERLY APR-JUN JUL-SEP OCT-DEC JAN-MAR 1994 STATION 1994 1994 1994 CODE ........... ...........

~

36S2 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 2B1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 2E1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 3S1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 4E1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 SS1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 5H1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 6C1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 7S1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 7El 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 9C1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 10S3 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 10E1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 10F3 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 '

11S1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 13C1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 '

13E1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 13H4 01/05-04/05 04/05-07/05 07/05-10/04 10/04-01/04 14S1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 15D1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 ,

16S2 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 16F1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 17B1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 18S1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 ,

18G1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 '

19D1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 20D1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 20F1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 21S1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 l 22G1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 23S2 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 24D1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 25S1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 25D1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 26S3 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 26B1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 !

2BD2 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 l 29S1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 j 29B1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 l 29El 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 l

. 31D1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 31D2 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 32S1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 32G1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 34S2 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/03 34E1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 35B1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 35F1 01/04-04/05 04/05-07/05 07/05-10/04 10/04-01/04 i

C - 31

FIGURE C-1 MEAN MONTHLY INSOLUBLE GROSS BETA CONCENTRATIONS IN SURFAC WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1994 15

+ CONTROL

^

INDICATOR 4 10 , n p

~ si 4

Ii b -

Il b

. ~6 11

[ 3;ii ,',

i:

35 -f

- i' " a A ,,n ,,o o % ii il si 'i

c. -9 f I

O g-

_ LGS CRITICALITY UNIT NO.1: 12/22/s4 UNIT No. 2: 08/11/s9

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

159159159159159159159159159159159159159 82 l 83 l 84 l 85-l 86 l 87 l 88 l 89 l 90 l 91 l 92 l-93 l 94 YEAR

-l

' s FIGURE C-2 MEAN MONTHLY SOLUBLE GROSS BETA CONCENTRATIONS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1994 ,

15

+ CONTROL

~

i

~

INDICATOR 10 O

64 9 p l A a i ra w -

@ g 1

i

@PX A 4

" ' - C .

x5 l

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- 1 7d1 A

l hA gr i

c.

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~

LGS CRITICALITY

~

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

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

1591591591591591591591591591591591591-59 82 l 83 l 84 l 85 l 86 l 87 l 88 l 89 l 90 l 91 l 92 l 93 l 94 YEAR mm_m._ y ]j

FIGURE C-3 MEAN MONTHLY INSOLUBLE GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1994 6

~

+ CONTROL

INDICATOR 4 a LGS CRITICALITY

~

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

- /.s o

= o 3 i

2 ;,

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i 8 25 8 ,

l E

f;

,1

- 5

-2"'""""'"""'""""'"""""""'""159159159159159159159159159 159159159159 82 l 83 l 84 1 85 l as 1 87 1 88 I 89 l 90 1 91 l 92 l 9a l 94 YEAR

FIGURE C-4 MEAN MONTHLY SOLUBLE GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1994 25

+ CONTROL

}'

~

20 e

INDICATOR '

e 15 5 k

.e -

5 10 _

a A a 0 -

a ,

hd 5 6 3

to g Y ""W od NO 1 0 LGS CRITICALITY

- UNIT NO.1: 12/22/84

- UNIT NO. 2: 08/11/89

-5 159159159159159159-15915S159159159159159 82 l 83 l 84 l 85 l 86 l 87 l 88 l 89 l 90 l 91 l 92 l 93 l 94 YEAR m_ .- v _ . . . , -

~ _ . - - --#- s . - - - - > - - - - - - - - , r - e ,e - . - . . , , w-% . _ _ _ _ . -

=>

FIGURE C-5 MEAN ANNUAL CS-137 CONCEL .ATIONS IN FISH SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1994 20 . . . . .

I

+16C5

20S1 m, 15 LGS CRITICALITY . . .

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

29C1 g

W UNIT NO. 2: 08/11/89 f . .

^

'o,10

^

O . .

n A

sc N - . .

' **== . . .

o

o. '

1 h . A

- m

\ ,/ /

m

: : : 6 . j :

e + :

I I I I I I I I I I i i i i i o I, i i i i i 86 87 88 89 90 91 92 93 94 82 83 84 85 CONTROL = 29C1 YEAR

FIGURE C-6 CONCENTRATIONS OF CS-137 IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1994 2000

-16B2

~

16C4 g 1500 ~

g LGS CRITICALITY _y- g g v

~

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

g1000 _

3 -

.b O -

g O. 500 1

T**' ' '

0

'X 1 3 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 l 94 CONTROL = 33A2 Quarter / Year

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

FIGURE C-7 MEAN WEEKLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LGS,1994 40 , . ,

-o- GROUP I . . . . . . .

G R O U P il . .

+ GROUP ill : : : .

6.~

' 3 0 -- -

. l.

.as gg '

E .

. : : i ! i . : . i . . .

: : : : 2

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3 20 - - - -

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g. . .

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,l .,! ,,! ,iI i,I ,I ,.1 ..

iii, I I , , I . . I , , I . .l ,,I ..I i i i i i i i i i i O i i i i i i 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 1 4 7 WEEK NO.

FIGURE C-8 ,

MEAN MONTHLY GROSS BETA CONCENTRATIONS IN AIR PARTICtl LATE SAMPLES COLLECTED IN THE VICINITY OF LGS, 1982 - 1994 .

150 ..

'5- + Groupi j g 120

Group 11 5 i

~e 105 Chernobyl -

+ Group lil E

o 90 --l ~

T:i :

s 75 _

o :

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

L 0 !!lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll 159159159159159159159159159159159159159 82 l 83 l 84 l 85 l 86 l 87 l 88 l 89 l 90 l 91 l 92 l 93 l 94 YEAR

. . . . . . . ~. , v.-..,....-_-w. - , , _ _ . _ , , - - - . - - - . . - - .- . . , - - - - , . - - ~ ,- ,- - - _ _ . _ - - - -

FIGURE C-9 MEAN MO'NTHLY AMBIENT GAMMA RADIATION LEVELS (TLD)

IN THE VICINITY OF LGS, 1982 - 1994 13 12 & SITE d 33 __

MIDDLE RING E -

- + OUTER RING 3 10 a 3 h a k ...W ,,

^

f 5

ininnnnnnnnninininunninininunnunnnunnnnnunninnnnninnnnnninnnnnininnnninninnininnininnni 4

159159159159159159159159159159159159159 82 l 83 l 84 l 85 l 86 l 87 l 88 l 89 l 90 l 91 l 92 l 93 l 94 YEAR ,

_ _ - _ - _ _ _ _ - _ - _ . - I

,o -m_,

, oa4 ,J

._m+ 2.2- & . _m # -a m -

t t

8' l

d T

I t

6

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i i

. APPENDIX D DATA TABLES AND FIGURES QC LABORATORY t i

i e

. 5 i

_ , . . _ _ _ . . ._ _ _ . . - _ . _ _ _ . . mm . ._.

(

l

[

l APPENDIX D: DATA TABLES AND FIGURES - COMPARISON LABORATORY I T

TABLES t

Table D-l.1 Concentrations of Gross Beta insoluble in Surface and Drinking Water Samples [

Collected in the Vicinity of Limerick Generating Station,1994. ;

i

' Concentration of Gross Beta Soluble in Surface and Drinking Water Samples Table D 1.2 ]

Collected in the Vicinity of Limerick Generating Station,1994. l Concentrations of Gamma Emitters in Surface and Drinlung Water Samples Table D-l.3 ,

Collected in the Vicinity of Limerick Generating Station,1994. '

l Concentrations of Gross Beta in Air Particulate Samples Collected in the Table D-II.1 [

Vicinity of Limerick Generating Station,1994.

Concentrations of Gamma Emitters in Air Particulate Samples Collected in the .

Table D-II.2 ;

Vicinity of Limerick Generating Station,1994. I i

Concentrations of I 131 by Chemical Separation and Gamma Emitters in Milk Table D-Ill.1 !

Samples Collected in the Vicinity of Limerick Generating Station,1994. !

7 Table D-IV.1 Summary of Collected Dates for Samples Collected in the Vicinity of Limerick j Generating Station,1994. ;

FIGURES Figure D-1 Comparison of Monthly insoluble Gross Beta Concentrations in Surface Water Samples Split Between TB and PSE&G,1994.

Figure D-2 Comparison of Monthly Soluble Gross Beta Concentrations in Surface Water Samples Split Between TB and PSE&G,1994.

Figure D-3 Comparison of Monthly ',nsoluble Gross Beta Concentrations in Drinking Water Samples Split Between TB and PSE&G,1994.

Figure D-4 Comparison of Monthly Soluble Gross Beta Concentrations in Drinking Water

Samples Spilt Between TB and PSE&G,1994.

1 Figure D-5 Comparison of Weekly Gross Beta Concentrations in Air Particulate Samples !

Collected from LGS Co-located Locations 11S1 and 11S2,1994.

Figure D-6 Comparison of Weekly Gross Beta Concentrations in Air Particulate Samples l

Collected ' rom LGS Co-located Locations 14S1 and 14S2,1994.

l D-I ,

1 l

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 .

controllaboratory, 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.

t D-1

/

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

~

l l

TABLE D.I.1 CONCENTRATIONS OF GROSS BETA INSOLUBLE IN SURFAC1R AND DRINKING WATER SANPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION,1994 RESULTS IN UNITS OF PCI/ LITER

2 SIGMA COLLECTION 10F2 16C2 PERIOD JAN 94 0.4 0.4 0.2 s 0.4 "

FEB 94' O.1 s 0.4 0.0 s 0.4 MAR 94 0.2 s 0.4 0.7 0.4 AIR 94 0.1 s 0.4 0.0 s 0.4

MAY 94 0.0 s 0.3 0.1 0.3 f JUN 94 0.8 2 0.3 0.0 2 0.3 JUL 94 0.5 s 0.4 0.8 : 0.3 t AUG 94 0.5 0.3 -0.2 2 0.3 >

SEP 94 0.6 s 0.3 0.1 0.3 OCT 94 -0.5 s 0.3 0.2 s 0.3 NOV 94 0.1 0.3 0.1 0.3 ,

DEC 94 0.4 s 0.3 0.2 2 0.3 MEAN 0.2 s 0.8 0.0 2 0.7 TABLE D.I.2 CONCiuv"TRATIONS OF GROSS BETA SOLUBLE IN SURFACE AND DRINKING WATER SAMPLES COLLECTED IN THE VICINITY of LIMERICK GENERATING STATION, 1994 RESULTS IN UNITS OF PCI/ LITER 2 SIGMA ,

COLLECTION 10F2 16C2

PERIOD JAN 94 3.1 s 0.6 1.7 0.5 FEB 94 2.3 2 0.6 2.0 s 0.6 '

MAR 94 2.5 0.6 1.4 s 0.5 APR 94 3.4 s 0.6 1.5 s 0.5 '

MAY 94 5.4 0.6 2.6 s 0.5 JUN 94 4.8 : 0.6 2.9 s 0.5 JUL 94 4.1 2 0.5 3.0 s 0.5 AUG 94 4.5 0.6 3.1 s 0.5 SEP 94 4.3 0.6 2.3 a 0.5 OCT 94 4.7 0.6 3.0 s 0.5 NOV 94 8.1 s 0.7 2.3 s 0.5 '

DEC 94 6.8 s 0.7 1.5 s 0.4 MEAN 4.5 a 3.4 2.3 1.3 j

D-2 e

e- , ,-. ,

s ::J TABLE D-I.3 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE AND DRINKING 1994 NATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, .

RESULTS IN UNITS OF PCI/ LITER 1 2 SIGMA FE-59 CO-60 2N-65 ER-95 K-40 MN-54 Co-58 COLLECTION STC PERIOD

< 0.3

< 0.8

< 0.5 -------------

< -0.3

< 20 < 0.2 < 0.2 < 1 10F2 JAN 94 < 0.8 < 1.0 < 0.6 < 2

< 40 < 0.7 < 0.7 < 0.8

! FEB 94 < 0.9 < 1 < 0.4 MAR 94 < 10 < 2 < 0.4 < 2 < 2

< 0.9 < 0.5 < 2 APR 94 < 50 < 1 < 0.8 < 0.9 < 1 40 1 20 < 0.9 < 2 < .0.5 < 2 MAY 94 < 0.6 < 0.3 < 0.9 < 0.5 JUN 94 50 a 20 < 1 < 0.4 < 2 < 1 50 2 20 < 2 < 0.8 < 2 < 1.0 JUL 94 0.6 < 0.6 < 0.5 < 0.3 AUG 94 50

20 <

< 0.9 < 0.8 < 1 < 2

< 20 < 0.5 < 1.0 < 3 SEP 94 < 2 < 0.5 < 1 60 t 30 < 1 < 0.5 < 1 < 1 OCT 94 0.3 < 0.7 -< 0.7 < 0.7 NOV 94 50 a 10 < < 1 < 0.9 < 2

< 2 < 0.6 < 2 DEC 94 70

20

< 0.6 < 1.2 < 1.4 1.0 < 0.7 < 1.1 NEAN 40 m 40 <

0.5 < 0.3 < 0.7 < 0.3 -

< 0.3 <

< 10 < 0.1 < 1 < 0.8 16C2 JAN 94 < < 0.5 < 1 < 0.7

< 30 0.6 < 1 < 0.8 FEB 94 < 0.4 < 0.9 < 0.9 MAR 94 < 30 < 0.9 < 0.6 < 2 < 1

< 0.8 < 0.5 < 1 < 0.9 APR 94 < 20 < 2 < 0.9 < 1 I 40 s 20 < 0.9 < 0.8 < 0.7 < 1 MAY 94 < 0.4 < 2 < 0.3 !

JUN 94 55 *9 < 0.7 < 1 < 1 < 3

< 0.9 < 1 < 1 <

JUL 94 40 a 20

< 1 < 1 < 0.6 l' AUG 94 40 1 20 < 0.7 < 0.3

< 0.3 < 0.7 < 1

< 0.7 < 0.4 < 2 < 2 SEP 94 40 2 10

< 1 < 1 <- 2

< 20 < 0.9 < 1 < 2 < 2 OCT 94 < 1 < 3 < 2 NOV 94 60 1 20 < 1

< 0.9 < 0.8 < 1 < 3

< 40 < 1 < 1 DEC 94

< 0.8 < 1.1 < 1.4

< 0.8 < 0.7 < 1.4 NEAN 36 2 28 D-3

" Y TABLE D-I.3 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE AND DRINKING MATER SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 RESULTS IN UNITS OF PCI/ LITER 2 2 SIGMA BA.140 LA 140 RA-226 TM-228' COLLECTION NB-95 CS-134 CS-137 STC PERIOD __......_.... ......_......

0.2 0.1 <

0.7 < ..__....

0.6 < 0.6 < 2 10F2 JAN 94 < 0.2

< 0.5 < 3 < 2 < 2 < 3 FEB 94 < 0.5 < 0.8 < 5 < 5

< 0.7 < 0.8 < 3 < 1 MAR 94 < 0.8 < 3 < 2 < 4

< 0.7 < 0.8 4 2 APR 94 < 1.0 < 1 < 2 < 4

< 2 < 0.4 < 2 < 2 MAY 94 <. 3 < 1 < 2 < 4

< 0.5 < 0.5 < 0.8 < 8 JUN 94 < 1.0 < 3 < 3 < 2 JUL 94 <' O.4 < 0.8 6 s2 < 10

< 0.7 < 0.6 < 1 < 1 AUG 94 < 0.6 < 2 < 2 < 4

< 2 < 0.7 < 0.6 < 1 SEP 94 < 4 < 4 < 2 < 10 OCT 94 < 1 < 0.9 < 1 < 4

< 0.7 < 4 < 10 6 2 2 NOV 94 < 0.9 < 0.7 < 2 < 6

< 0.6 < 0.8 < 3 < 6 DEC 94 < 1.0

< 2.5 < 3.0 2.9 z 3.6 < 5

< 0.9 < 0.6 < 0.8 MEAN

< 0.5 < 0.5 11.0 2 0.9 < 0.9

< 0.3 < 0.2 16C2 JAN 94 < 0.3 0.9 < 4 < 3 23 a2 9 2 4 0.3 < 0.6 < < 5 FEB 94 <

< 0.8 < 3 < 2 62 e3 MAR 94 < 0.5 < 0.5 < 10 < 2

< 1 < 1 < 3 < 2 APR 94 < 1 < 2 < 8 < 7

< 0.5 < 0.7 < 0.9 < 3 MAY 94 < 3 < 1 11 2 2 < 8

< 0.7 < 0.8 JUN 94 < 0.3

< 0.6 < 6 < 2 < 2 < 10 JUL 94 < 0.6 < 0.5 < 2 -< 7'

< 0.6 < 0.6 < 3 < 2 AUG 94 < 0.8 < 2 2 2 2 < 9

< 0.6 < 1 < 1 < 3 SEP 94 < 2 < 2 10 2 4 < 4

< 0.4 < 0.9 < 0.9 < 6 OCT 94 < 2 < 1 16 2 4 NOV 94 < 0.8 < 1 <-1 < 4

< 3 < 20 7 3

< 1 < 1 < 0.9 DEC 94 2.9 < 3.3 14.0 2 32.6 6.0 a 5.7

< 0.8 < 0.8 <

MEAN < 0.7 D-4

.~. .m....~.,...-, , . - . - - . . . . . . - . . _ , , . . . . . , , , - - - - . . , , . , . , ,-.-.4 . e-- .m.r ->v.-- .- ,- ,-,-,-. ., , , m.-- - - .~ , . - . _ , . . -

L 'l i

I TABLE D-II.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 RESULTS IN UNITS OF E-3 PCI/CU. METER s 2 SIGNA ;

WEEK 1152 1452

. s3 01 25 a3 25 02 18 a3 17 a3 5 03 24 *3 27. t 3 .

39 s3 '

04 40 s3 05 19 a3 21 a3 06 33 a3 35 a3 ;

07 25 a3 24 a3 08 33 2 3 .27 a3 09 22 s3 21 a3 10 27 a3 26 a3 I 11 28 s3 26 a3 .l 12 20 a3 17 23 i 13 20 s3 15 a3 14 21 2 3 21 s3 15 18 a3 21 a3 16 20 2 3 20 2 3 17 24 a3 24 s3 18 17 s3 18 a3 19 19 a3 19 m3 20 18 s3 17 a3 21 11 m2 8 a2 22 13 s2 22 a2 -

23 20 2 3 16' *3 !

24 22 a3 24 2 3 :

25 26 s3 26

3 j 26 20 e3 20 s3 ,

27 22 a3 23 a3 '

28 20 2 3 19 s3 29 16

3 23 a3 30 24

3 12 a2 31 18 2 3 18 s3 32 22 a3 22 a3 l 33 17 a2 24 a3 '

34 16 2 3 14 s2 35 29 a3 29 a3 ,

36 24 a3 22 a3 37 26 a3 27 s3 38 39 23 33 s3 39 15 a2 17 a3 40 21 e3 21 s3 41 18 *3 3 s2 42 25 a3 28 2 5 43 30 a3 24 s3 44 29 a3 26 s3 o a3 45 25 a3 20 46 32 a3 29 *3

. 47 28 a3 28 a3 i 48 22 a3 23 a3 !

49 37 a3 25 a3 ;

50 21 a3 20 a3 l 51 24 a3 22 a3 ;

52 33 a3 33 *3 l 53 29 s3 28 a3 NEAN 23 2 13 22 2 13 D-5 i

TABLE C-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 RESULTS IN UNITS OF E-3 PCI/CU. METER 2 2 SIGNA CS-134 CS-137 RA-226 TN-228 COLLECTION BE-7 K-40 STC PERIOD

_____ _______________ _____________ _____________ _____________ __.__________ _____________ 0.7

< 0.6

< 0.1 < 0.1 <

1152 12/27-03/28/94 65 2 5 13 2 3

< 0.9 16 4 < 0.2 < 0.2 < 1.0 03/28-06/27/94 89 2 5 < 0.4 < 0.8 11 2 5 < 0.2 < 0.3 06/26-09/26/94 51 2 4 0.1 < 2 < 4 22

5 < 0.1 <

09/26-01/03/95 73 2 5 0.2 < 0.2 < 1.0 < 1.5 70 2 32 16 2 10 <

MEAN

< 0.1 < 0.2 < 0.4 < 0.7 14S2 12/27-03/28/94 65 2 5 < 10 < 0.9 15 <- 0.10 < 0.2 < 0.6 03/28-06/27/94 90 m6 5 2 2 1 3 m1 20 a5 < 0.1 < 0.2 06/26-09/26/94 67 2 7 1

1 2 -2 1 15 a4 < 0.2 < 0.1 09/26-01/03/95 71 2 5 6 < 0.13 < 0.2 1.0 2 1.4 1.5

2.1-MEAN 73 2 23 16 D-6

- -, -,, ,y---- -.s - w -ou. . - , y, - . - , - - . . - , - - - - - - . - .- , -w--,- - . --,m , , ,. ~ - _ _ _ .

s . .

i 1

TABLE D-III.1 CONCENTRATIONS OF GANNA ENITTERS IN MILK SANPLES .1 COLLECTED IN THE VICINITY OF LINERICK GENERATING STATION, 1994 .d

' RESULTS IN UNITS OF PCI/ LITER

2 SIGNA CS-134 CS-137 BA-140' LA-140 COLLECTION I-131 K-40 STC PERIOD _______ _____________ _____________

_____ _______________ _____________ _____________ _____________ < 6 < 4 0.3 1300 2 90 < 1 ______2<

19B1 01/11-01/11/94 <

1310 2 90 < 0.9 < 2 < 7 < 4 04/12-04/12/94 < 0.3 < 5 <- l' 0.1 1340

60 < 1 < 1 07/05-07/05/94 <

80 t 80 < 1 < 3 < 3 < 2 10/11-10/11/94 < 0.3

< 2 < 5 < 3 MEAN < 0.2 1010 e 1240 < 1.0

< 2 < 2 < 4 < 6 01/11-01/11/94 < 0.3 1270 -* 90 < 6 < 3 21B1 1400

80 < 0.7 < 1 04/12-04/12/94 < 0.1 < 6 < 0.7 0.3 1440 t 80 < 1 < 2 07/05-07/05/94 < < 3 < 4 0.3 '1350 e 90 < 0.9 < 2 10/11-10/11/94 <

< 2 < 5 < ?.4

< 0.2 1370 2 150 < 1.2 MEAN

< 0.4 < 2 < 4 < 2 22F1 01/11-01/11/94 < 0.2 1480 t 70 < 5 < 2 0.2 1340 s 70 < 0.5 < 2 04/12-04/12/94 <

1290 e 100 < 2 < 5 < 6 < 1 07/05-07/05/94 < 0.1 < 4 < 1 1320 a 60 < 0.8 < 1 10/11-10/11/94 < 0.3

< 0.9 < 3 < 5 < 2 NEAN < 0.2 1360 2 170 D-7

rx l

I TABLE D-IV.1 SUMMkRY OF COLLECTION DATES FOR SAMPLES COLLECTED i IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 I

(

COLLECTION 10F2 16C2

. PERIOD ............. ';

JAN 94 12/27-01/31 12/27-01/31 FEB 94 01/31-02/28 01/31-02/18 '

MAR 94 02/28-03/29 02/28-03/28 !

APR 94 03/29-05/02 03/28-05/02 .i MAY 94 05/02-05/31 05/02-05/31 * -

JUN 94 05/31-06/28 05/31 06/28- ;

JUL 94 .06/28-08/01 06/28-08/01 I AUG 94 08/01-08/30 08/01-08/30 i SEP 94 08/30-09/27 08/30-09/27 l OCT 94 09/27-10/31 09/27-10/31 l NOV 94 10/31-11/28 10/31-11/28 l DEC 94 11/28-12/28 11/28-12/28 .:

TABLE D-IV.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF LIMERICK GENERATING STATION, 1994 WEEK 1182 1482 WEEK 1182 1482 ............. ......... _ ... ;

...... ............. ............. 07/05-07/11 07/05-07/11 :

12/27-01/03 28 01 12/27-01/03 29 07/11-07/18 07/11-07/18 !

02 01/03-01/10 01/03-01/10 07/10-07/25 07/10-07/25 t

01/10-01/17 30 01/10-01/17 03 01/17-01/24 31 07/25-08/01 07/25-08/01 04 01/17-01/24 32 08/01-08/08 08/01-08/08 i 05 01/24-01/31 01/24-01/31 08/08-08/15 01/31-02/07 01/31-02/07 33 08/08-08/15 06 34 08/15-08/22 08/15-08/22 07 02/07-02/14 02/07-02/14 08/22-08/29 ;

02/14-02/21 02/14-02/21 35 08/22-00/29 08 36 08/29-09/06 08/29-09/06 09 02/21-02/28 02/21-02/28 09/06-09/12 02/20-03/07 02/28-03/07 37 09/06-09/12 10 38 09/12-09/19 09/12-09/19 11 03/07-03/14 03/07-03/14 09/19-09/26-03/14-03/21 03/14-03/21 39 09/19-09/26 12 40 09/26-10/03 09/26-10/03 13 03/21-03/28 03/21-03/28 10/03-10/10 03/28-04/04 03/28-04/04 41 10/03-10/10 14 42. 10/10-10/17 10/13-10/17 l 15 04/04-04/11 04/04-04/11 10/17-10/24 !

04/11-04/18 04/11-04/18 43 10/17-10/24 16 04/18-04/25 44 10/24-10/31 10/24-10/31 !

17 04/10-04/25 45 10/31-11/07 10/31-11/07 ,

18 04/25-05/02 04/25-05/02 11/07-11/14 11/07-11/14 l 05/02-05/09 46 19 05/02-05/09 47 11/14-11/21 11/14-11/21 20 05/09-05/16 05/09-05/16 11/21-11/28 05/16-05/23 05/16-05/23 48 11/21-11/28 l 21 49 11/28-12/05 11/28-12/05 22 05/23-05/31 05/23-05/31 12/06-12/12 !

05/31-06/06 05/31-06/06 50 12/05-12/12 ,

23 06/06-06/13 51 12/12-12/19 12/12-12/19 24 06/06-06/13 52 12/19-12/27- 12/19 12/27 ,

06/13-06/20 25 26 06/13-06/20 06/20-06/27 06/20-06/27 53 12/27-01/03 12/27-01/03 *'] ;

27 06/27-07/0: 06/27-07/05 i

D-8

FIGURE D-1 COMPARISON OF MONTHLY INSOLUBLE GROSS BETA CONCEN SURFACE WATER SAMPLES SPLIT BETWEEN TB AND PSE&G,1994 4

~

+ TB 3

PSE&G g2 E ~

h O P O. 1 A a 3-

/ \

g

~g_ /

/ \

\ /

/

f ['

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

FIGURE D-2 COMPARISON OF MONTHLY SOLUBLE GROSS BETA CONCENTRATIONS IN SURFACE WATER SAMPLES SPLIT BETWEEN TB AND PSE&G,1994 16

+ TB 12

PSE&G _

5 E8 - -

as 5n -

'sh A~

i

' ' b'

~ , , , -b - g 8 4 ,

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

--m_______-;

FIGURE D-1 COMPARISON OF MONTHLY INSOLUBLE GROSS BETA CONCENT ,

SURFACE WATER SAMPLES SPLIT BETWEEN TB AND PSE&G,1994 4

+ TB

PSE&G g2 E ~

h O A O. 1 A As 3- '

s

/

~ g_ _ _ , - s ,

/ \

\ /

/

f 6'

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

FIGURE D-2 COMPARISON OF MONTHLY SOLUBLE GROSS BETA CONCENTRATIONS IN SURFACE WATER SAMPLES SPLIT BETWEEN TB AND PSE&G,1994 16 l

~

+ TB

PSE&G _

12 m -

/ nN , ~,

h 8 ,

O i O. /

- l

/

~ b' ~ , , , -a - g 8

~, -

i 0

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

- _ - - M'

FIGURE D-3 COMPARISON OF MONTHLY INSOLUBLE GROSS BETA CONCENTR DRINKING WATER SAMPLES SPLIT BETWEEN TB AND PSE&G,1994 4

4

~

+ TB

~

PSE&G L. 2 3

g _

o Q- 1 l

A s

g [g S 0

s ,

'd L ' ' 3 ' ' -a ' a-s w

j s ,

l ~ '

^

s s l E' ' ' ' '

i ' ' ' ' '

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

FIGURE D-4 COMPARISON OF MONTHLY SOLUBLE GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES SPLIT BETWEEN TB AND PSE&G,1994 7

6

+ TB - - -

~

PSE&G g 5

\

Q) ,_

ig. ao o _ , _ _ -a - ^ ,a s '

o ..

y x/ a s

w

o. , '

s 2 ,A s

~, _ _ m .

1 0

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

. . _ _ _ . . - - - _ , , ~ . , , . , - , - - - , ~ . . . . , , - . - - - - - , , - - , . - - ~e . . , -.n- , - _ - _ . _ . - _

FIGURE D-5 l

COMPARISON OF WEEKLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE l SAMPLES COLLECTED FROM LGS CO-LOCATED LOCATIONS 11S1 AND 11S2,1994 !

50 , , , , , , , , , , ,

+ 11S1 - TB

11S2 - PSE&G h : : : : : : : : : : :h : :

. k :

T cp . . .

I gg .

y . .

E -

1 0

30 - -

. . . . . . .A

,o ..

s .

3 ,

O s

.- g. .,

. .j

.g g

O 20 - -

X :M : . {: :

o. 6: . . , .

.n a~.

. . s n,

. . t . . .

u.I : : : : : . . . . .

10 . . , .

g .

6 .

,.I,.I,.I,,l,, , , .,I,, ,. ..I i i,,I.. .. ,, ,,

i i i i 0 i i i i 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52.

WEEK NO.

FIGURE D-6 COMPARISON OF WEEKLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED FROM LGS CO-LOCATED LOCATIONS 14S1 AND 14S2,1994 50 . . . . . . . . . .

! [ : : : ! ! ! i i + 14S1 - TB 0 14S2 - PSE&G 40 -

6 cp h : :

ee-# . . . . . .

g) -

if '

E . .

Cl . . .

. O 3 0 -- . . . . .

.s

. . . . . . . . . r .

4 . . . . . . .

T . .

l . . .

y . . .

O --

1 3 .

i 2

't n 1

O 20 - -

7 :

i:-

--6 -

ct .

s

~

m h: - :

.- y 10 u -

. . . . . 6 .. . .

t ii b t t t t t iI I t i6 t I t b t 9 it t t iI i1 I A 9 B R 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 1

WEEK NO.

t

=

APPENDIX E SYNOPSIS OF ANALYTICAL PROCEDURES 3

I I

' APPENDIX E: SYNOPSIS OF ANALYTICAL PROCEDURES The following section contains a description of the analyticallaboratory procedures -

along with an explanation of the analytical calculation methods used by Teledyne '

Brown Engineering and Public Service Electric & Gas to obtain the sample ,

activities. :

f I

i I

f

i I

I e

4 s

E-1

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

=

DETERMINATION OF GROSS BETA ACTIVITY IN WATER SAMPLES

.(TOTAL SUSPENDED AND DISSOLVED FRACTIONS)

Toledvne Brown Enaineerina L This describes the process used to measure the radioactivity of water samples without identifying the radioactive species present. No chemical separation ,

techniques are involved. /

L 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 o

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, L and the residue is transferred and dried on another planchet.

l 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 planchet.

' Calculation of Samole Activity and 2 Siams Error:

l_p 2 S+1 ty 3

Result C s ,

h ' Cs (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)

S = background rate of counter (cpm) to

= 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 blSSOLVED 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 j 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.

I 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 a 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 Errot:

b3 1.96 b+b Result T, h. 8 d & !

,3gg.

(pCl/l) 2. 22 (V) (E) 2.22 (v) (E)

Net Activity . Counting Error where:

C, = total gross sample counts (counts)

T, = sample count time (min)

- C, = total background count (counts)--

T, = background count time (min)

E

= counting efficiency based on Sr-90 for the weight of 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 DETERMINATION OF TRITIUM IN WATER BY LIQUID SCINTILLATION COUNTING Teledvne Brown Enoineerino '

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 c: higher, the sample contains contamination that i 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 Sioma Error:

N 2 E + .E.

Result 5 % t's 'b

= i ,

(pCil) 2.22(@(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 count 6r (cpm) 1 t,

= counting time for bac kground (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-4

O L

- DETERMINATION OF GROSS BETA- ACTIVITY IN AIR PARTICULATE SA

~

i n

Toledvne Brown Enaineerina This describes the process used to measure the overall beta activity of air particulate filters nithot:t identifying the radioactive species present. ' No chemical ;

separation techniques are involved. Each air particulate filter is placed directly on a

-l 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 l l

considered in the case of air particulate filters because of the impracticality of l

accurately weighing the deposit and because the penetration depth of the deposit into the filter is unknown.

Calculation of Samole Activity and 2 Siama Error: '

i g_p t, 2 (

% is

). + ( )

ResuH * , ;

p s) 2.22($(@(.02832) 2.22($(@(.02832) l i

Net Activity Counting Error q e

where: .,

[

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

S = background rate of counter (cpm) l t,

= counting time for background (min) 2.22 = dpm/pCi .

v = volume of sample analyzed in cubic feet calculated from the i

elapsed time meter l 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 .l result. Less than MDL is reported as the result when this value is greater than the net activity. :

i i

E-5 1 i

l DETERMINATION OF GROSS BETA ACTIVITY IN AIR PARTICULATE SAMPLES Public Service Electric & Gas ,

l 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 Samofe Activity and 1.96 Siama Error:

C, C6 1.96 b+b Result =

T, T, 1

% & $ l (pCim8) 2.22(Q(E)(.02832) 2.22(6(E)(.02832)

Net Activity Counting Error i

h where:

C, = total gross sample counts (counts)

T, = sample count time (min)

C, = total background count (counts)

T3 = background count time (min)

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

.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 than the net activity. .

I L

E-6

DETERMINATION OF l-131 IN MILK AND WATER SAMPLES

~ Teledyne Brown Engineering r

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 lodine is then stripped from the resin with sodium hypochlorite, reduced with l

- hydroxylamine hydrochloride, and extracted into carbon tetrachloride as free iodine. j It 16 then back-extracted as iodide into sodium bisulfite solution and is precipitated 1 as palladium lodide. The precipitate is weighed for chemical yield and is mounted i 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 i electrode. .i Calculation of the Samole Activity and 2 Siama Error:

$_p 2 5+1 y i

t s t, t, 8 , ,

Result . ,

l (2.22)($(E)(p)(exp-1) (2.22)(@(E)(f)(exp-288)

(PCil) *

?

Net Activity Counting Error I ,

where: ;

N = total counts from sample (counts) l t,

= counting time for sample (min) '

S = background rate of counter (cpm) !

t,

= counting time for background (min) l 2.22 = dpm/pCi l v = volume of sample analyzed (liters) .,

l y = chemical yield of the amount of sample counted .

i A

= is the radioactive decay constant for I-131 (0.693/8.05) j 4t = is the elapsed time between sample collection (or and of the l

sample collection) to the midcount time

= multiple of the counting error l 2 l E = efficiency of the counter for 1-131, corrected for self absorption effects by the formula-

,. ,*((ex,4exp* "m ') !

where:

E, = efficiency of the counter determined from an 1-131 standard l mount l M = mass of Pdl 2on the sample mount (mg) l M, = mass of Pdla on the standard mount (mg)

-i l

The MDL is defirsed as that value equal to the two sigma counting error of the j result. Less than MDL is reported as the result when this value is greater than the i net activity. j 4 E-7 j i

DETERMINATION OF l-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 mi 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 ara rinsed with domineralized water several times and any leftover rinse water removed with an aspirator stick. The can is hermatically sealed and then counted on a gamma detector.

Calculation of the Samole Activity and 1.96 Sioma Error:

'

1.96 b + b (1.05)

Result ( T, T,) (1.05) 8 Tl Tl

" 1 (pCil) (2.22)(@(E)(y)(exp-**') (2.22)(6(E)(y)(exp-**')

Not Activity Counting Error where:

C, = total gross sample counts (counts)

T, = sample count time (min)

C3 = total background count time (counts)

T, = background count time (min)

E = counting officiency for 1-131 v = aliquot analyzed (liters) y = iodine yield A

= is the radioactive decay constant for 1-131 (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/pCl 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 toe not activity.

E-8

s DETERMINATION OF GAMMA EMlTTING RADIOlSOTOPES Toledvne Brown Enaineerina Gamma emitting radioisotopes are determined with the use of a lithium driftedc Lgermanium (Gell) and high purity germanium detectors with high resolution o_ ' 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 mi 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 Gell systems are calibrated for each standard geometry using certified radionuclide standards traceable to the National Bureau of Standards.

Gamma Soectrosconv Statistically Sionificant Activity and 2 Siama Error Calculation for the ND6620 and ND6700 Systems: 1 ActMty AREA

DECAY \

\

PCI y UVETIMQaec.)

ABN* EFF* 0.037 * (unit mass) g unit mass Statistically Significant Activity ,

1 1 200

J2

BKGND AREA

+ AREA ,

2 Sigma Counting Error where:

= Net Peak Area (from Nuclide Line Activity Report)

AREA 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)

EFF = Detector Efficiency (from Nuclide Line Activity Report) 0.037 = Conversion Factor (dps to picocuries) unit mass = Sample weight or volume (from Header information)

E-9

Gamma Soectroscoov Statistically Non Sionificant Activity and 2 Siama Error Calculation for the ND6620 and ND6700 Systems:

NetActMty , NETe DECAY pCI y UVETIMQsec.) * (EFFe B.I.)

0.037 * (unit mass) g Unit mass ,

Statistically Non Significant Activity .

1 200 e 42 e BKGND + NET , y,g ,cgyyyyy t NET i

e 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 picoeuries) unit mass = Sample weight or volume (from Header information) ;

i i

Gamma Spectroscoov Minimum Detectable Activity Cateulation for the ND6620 and ND6700 Systems:

MDA ,

2.83 /BKGR e DECAY pCl UVETIMQsec.) * (EFFe B.I.)

0.037 e (unit mass)

(unit massy ,

where:

= Total Peak Background Area (from Minimum Detectable BKGN 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.1) = Efficiency

Abundance (from Minimum Detectable Activity Report) 0.037 = Conversion Factor (dps to picoeuries) unit mass = Sample weight or volume (from Header Information)

E-10

DETERMINATION OF GAMMA EMITTING RADIOISOTOPES Public Service Electric & Gas The procedure for detection of gamma emitting radioisotopes generates high - j 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 l each sample type is presented, followed by the general formula used for calculation of the sample activities.

f Air particulate: At the end of each calendar quarter,13 weekly air filters from a l 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 of the Samole Activity and 1.96 Siama Error:

Result ,

N-B a a I

PCI (2.22)(@(t)(E,)(Big )(exp**)

( vol - mass) ,

Net Activity 1.96/Ng+Ba (2.22)(O(t)(E g )(B/g)(exp**)

Counting Error V

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 (S)(t) is subtracted from N before using the above equation. E is the count rate of the blank, cpm, in the background peak.

E - 11 l

7._

q. . J i

= b:ckgr und c:unts in th] r:gion cf intersst, c lcul:t;d by fitting c

~

B.gi straight line across the region connecting the two adjacent region.

y 1.96 = multiple of counting error i 2.22 ' = dpm/pCi

v. = : volume or raass of sample analyzed f j

t = . counting interval of semple, minutes I Eu, = efficiency of counter at the energy region of interest .

= branching intensity of the nuclide at the gamma emission energy- l Bi g, !

under consideration (no, of photons per disintegration)

I A,.

y

= .is the radioactive decay constant for nuclidea, (0.693/nuclide half .

life) ;

At = is the elapsed time between sample collection (or end of the j

sample collection) to the midcount time l

i 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. ,

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ENVIRONMENTAL DOSIMETRY Teledvne Brown Enaineerina 1-i 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 l

and are inserted into black polyethylene pouches. The filled pouches are labelled i

- and placed in rectangular holders which contain cupper shielding to filter out low ,

energy radiation. After exposure in the environment, four separat" areas of the dosimeter are read in a Teledyne Brown Engineering model 830'. .LD reader. The ,

dosimeter is then re-irradiated by a standardized Cs-137 sotu and the four areas j are read again. Calculation of the environmental exposure is ndermed by ;

computer, using the re-irradiation readings to determine the segnvity of each area of the dosimeter. The reading of control dosimeters are sub+zte to allow for '

transit dose and system background. >

A. For any given area of the dosimeter, the dose mR ic calcutatad by the formula: .

so (B)( RR ) - (avcontro$ ,

where:

I R = initial reading of the area ,

RR = second reading of the area (after re-irradiation) i redose = re-irradiation dose in mR ;

ancontrol = average of control values calculated as explained below. If no controls are used, avcontrol = 0 and gross exposures result B. Each area of each controlis calculated by the formula: ,

cdose = (ct)(credose) crr where:

cdose = control area dose in mR j 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 i r

E-13

=

The av;rigo cf c:ntrci valu s is then calcul;ted fr:m cil f:ur cr:Is cf cil csntrcls by the formula:

4u EM avcontrol =

4N where:

N = total number of control dosimeters t

,. C. The average and standard deviation of the area readings for each dosimeter _

are calculated by standard methods.

f D. Using the criteria that if one sta.,dt rd 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.

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APPENDIX F l I

QUALITY CONTROL EPA INTER-LABORATORY COMPARISON PROGRAM l

y APPENDIX F: .OUALITY CONTROL PROGRAM !

Teledyne Brown Engineering (TB) and Public Service Electric & Gas (PSE&G) ;

participate in the EPA Radiological Inter-laboratory Comparison (cross check) c Program. This participation includes a number of analyses on various sample media as found in the Umerick 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. 4 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 progran, car be found in Tables F-1 and F-2, respectively. ,

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F-1 l

TABLE F-1 USEPA INTER-LABORATORY COMPARISONS - 1994

TELEDYNE BRONN ENGINEERING A lised Deviation All participeate Tolodyne collectice seguence trous peoulte(b) erase avg. 2 -- Been a 2 s.4.

so. Moela poe114e EPA Resulte(s) cute 0.09 -0.35 33.74 e e.02 25.0 e 8.66 24.0 e 3.00 e 4.34 J 638 unter Sr-39 0.37 0.23- 14.59 01/14/94 pr-90 15.0 e 9.66 15.67 e 4.59 21.67 e 1.14 2.74 2.31 13.75 e e.30 (e) '

Or-Alpha 15.0 e 8.66 1.79 56.14' e 28.30 01/30/94 636 unter 17.32 73.33 e 11.37 2.90 or-Deta 62.0 e 0.00 -1.59 -1.30 120.99 e 20.36 637 water I-131 119.0 e 20.70 110.33 e 02/04/94 4844.97 e 955.34 4033.33 e 459.25 -0.04 -0.36 639 Water N-3 4936.0 e 855.63 03/04/94 106.96 e 30.94 102.67 e 19.29 -0.40 -1.30 642 water Or-Deta 117.0 e 31.10 -0.35 10.49 e 7.30 04/19/94 pr-99 20.0 a 0.66 19.00 e 3.00 0.10 14.13 e 4.28 13.00 a 0.00 -0.39 .-0.35 pr-90 14.0 e 8.66 1.23 1.37 30.12 e 3.66 0.66 23.67 e 9.63 Co-60 20.0 e 34.00 e 5.19 0.89 0.00 31.45 e 5.44 Co-134 34.0 e 8.66 1.73 31.17- e 4.00 34.00 e 7.95 0.99 Co-137 29.0 e 0.66 -0.50 -0.63 84.40 e 29.36 96.0 e 38.11 70.00 e 9.00 Gr-Alpha 6.00 -3.34 -2.42 49.77 e- 7.64 (4)

Co-se 58.0 e 8.66 43.00 e 140.62 e 19.16 (e) 06/10/94 643 Water 13.33 e 1.74 -16.96 -16.00 So-65 134.0 e 22.52 -3.51 216.54 e. 57.04 (t)

Re-106 353.0 e 43.30 391.33 e 27.87 -1.05 36.99 'e 6.30 (g) 29.33 e 11.37 -2.65 3.70 Co-134 40.0 e 8.66 0.23 52.39 e 7.22 49.67 e 4.59 -0.94 Co-137 49.0 - a S.66 -0.25 -2.25 96.45 e 16.62 (h) 98.0 e 17.32 85.00 e 9.00 De-133 5.19 -0.99 -1.39 30.04 e 12.13 Sr-99 30.0 e 3.66 26.00 e 10.00 e 5.50 07/15/94 647 mater 19.00 a 0.00 0.67 -0.35 3r-90 20.0 e 9.66

-0.95 -1.44 29.74 e '30.22 13.96 25.33 e 5.67 07/22/94 645 Water Or-Alpha 32.0 e 0.00 0.30 2.09 14.91 e 7.40 - (1)

Or-Deta 10.0 e 3.66 16.00 a 9700.00 e 300.12 0.00 -0.44 9651.96 e 1393.34 09/05/94 646 Water M-3 9951.0 e 1733.39 5.24 -1.07 -0.71 36.09 e 13.34 Or-Alpha 35.0 e 15.59 31.33 e 59.99 e 14.46 09/36/94 649 Air 59.33 e 9.63 0.04 0.50 Filter Or-seta 56.0 e 17.32 -0.69 19.57 e 5.52 8.66 10.00 e 3.00 -0.54 Br-90 20.0 e 0.14 0.69 16.59 e 4.94 15.0 a 0.66 17.00 e 5.19 Co-137

-1.92 -1.73 79.99 e 13.59 79.0 e 13.96 71.00 e 9.00 10/07/94 650 Nater 2-131 24.33 e 7.56 0.74 -0.23 22.19 e 10.22 pr-99 35.0 e 8.66 4.96 09/30/94 651 Kilk 0.87 0.92 15.15 a sr-90 15.0 75.0 e

e 8.66 13.96 17.67 91.67 e

e 4.59 17.58 1.47 1.44 74.99 - a 11.16 '(j) 1-131 13.86 2.75 3.93 62.39 e 7.44 l Co-137 59.0 e 0.66 70.33 e 1700.90 e 210.00 l 148.96 1740.00 a 461.85 0.79 0.50 K 1715.0 e 9.00 -0.66 -1.24 52.30 e 27.90 Or-Alpha 57.0 e 24.24 47.00 e 10/29/94 652 Water 25.33 e 4.59 -0.63 0.01 27.16 a 10.46 Or-Beta 23.0 e '9.45 36.37 120.00 a 0.00 -0.46 -1.91 125.57 e 27.84 10/10/94 653 Water Or. Data 142.0 e 0.50 ' -0.12 22.99 e 4.33-er-89 25.0 e 0.66 24.67 e 6.24 e 4.54 14.33 e 3.45 -0.30 -0.23 14.93 St-99 15.0 e 3.66 F-2

.m - . .- ,- . ,-o,,, , -ye .~--,-w- . . - - - , - - . , - - - - - , ,. .. u=<-a r w . - -w- am.*=-~n,w-u ..*,,.m +.,_m-- ..-.m,.. - - ,

a:

e TABLE F-1 USEPA INTER-LABORATORY COMPARISONS - 1994 TELEDYNE BRONN ENGINEERING All participeate Teleeyne norme11see Deviation names a 2 s.t.

creed Ave. - -:

seesence ara moeulte(s) e. a -- meoulte(b) collectice puellae Date so. media l

I 0.35 39.43 e 5.30 '

3.00 0.55 3.54

! 40.0 e 8.66 41.00 e 1.11 0 50 19.45 a Co-60 8.66 21.67 e 4.59 0.92 41.73 e 5.32 Cs-134 20.0 e 6.93 -0.02 19.66 39.0 a 3.66 41.67 e -0.66 -0.70 56.50 e Cs-137 24.25 51.33 e 4.59 Or-Alpha 57.0 e 50.97 e 9.19 (k)

-2.38 -2.42 8.66 53.00 e 0.00 -3.23 104.60 e 15.90 (k)

Co-60 59.0 e 21.06 -4.04 4.54 11/04/94 654 water 100.0 e 17.32 01.33 e -1.14 -1.50 23.95 a En-65 19.67 e 7.54 1.05 51.92 e 7.22 Co-234 24.0 e 8.66 6.93 0.84 12.26 (k) 49.0 e -S.66 54.33 e -3.09 -3.63 70.01 e, Cs-137 12.12 58.33 e S.67 De-133 73.0 e Footnotes:

(3 sigma). Units are pCi/l for water and milk except K is in mg/1.

(a) EPA Results - Expected laboratory precision Units are total Units are pC1/1 for water and milk except K is in mg/1.

(b) Teledyne Results - Average i 3 sigma.

pCi for air particulate filters.

The EPA confirms that the composition No corrective of their tap water action required beta results.

(c) There appears to be variation in self-absorption matrix.from Lake Mead, varies seasonally which can at this time since results are within i 3 sigma control limits. The result, 52 pCi/1, was in good A second aliquot was analyzed, paying particular attention to volinae aliquoted.

agreement with the EPA. The three original results, each counted on a different detector, showed good p (d)

The measurement of Co-60 has not been a problem.

check for a possible trend "out of control". is in good' agreement with The average value of three analyses on the

Report of Analysis" was 133 pCi/ liter whichFuture data will be printed from the (e) incorrect results were entered into the EPA computer.

the EPA. Apparently, computer screen to check entries. blems with the i

(f)

The EPA has indicated that the Radiation Quality Assurance program has been experienc ng pro ruthenium-106 analysis. i (g) The first aliquot, prepared according (based to EPAon dilution instructions was counted on four detectors in the 1The the 796 kev peak) in pCi/1 of 32.0, 25.1, 31.7, and 30.8.

l ter Marinelli geometry with Cs-134 Had results that been reported instead.of 25.1, the average 31.7 result was not reported. A second aliquot waswould prepared haveandbeen 31.5 and the a single normalized deviation would have been -2.94 instead of -3.70.An undiluted aliquot was measured in a 150 ml geometry with measurement was made with the result of 31.1 pC1/1.

F-3

TABLE F-1 USEPA INTER-LABORATORY CONPARISONS - 1994 TELEDYNE BROWN ENGINEERING L. lined Deviatiam All participeate Telearme ames e ..e.

collection seguemee aroom mesuita m orama ave. seems no. seese sueltae sen neoutesten o.t.

the result. of 33.5 pCi/1. That result is comparable with the Marinelli results. Thus none of : sample preparation (dilution, volume determination, maintaining correct pH, etc.), sample geometry, or detector efficiency seem to be the cause of the low results.

(h) There is no apparent reason for the low result, however the average value, 85 pCi/1 is in good agreement to the grand average (86.46). No corrective action planned.

EPA results for gross beta in water were corrected for 20% crosstalk into the beta channel from the Th-230 alpha (i)

Recent measurements show that the crosstalk can be much higher (37% for gamma products counter #1). The normalized deviation from the grand average was only 0.38. Future results will be corrected with specific spike.

crosstalk values determined by counting Th-230 standards.

The milk sample was counted four times. The reported Cs-137 values were based on one aliquot of 1 liter volume and an aliquot of 0.865 liter counted two times. It is suspected that the 0.865 liter volume was incorrectly (j) determined. If 1 liter (the usual volume for counting milk samples) is used in the calculation, then the average ..

of three results equals 63.6 pC1/1 which gives a normalized deviation to the Known of 1.59. The fourth count (a 1 liter aliquot) had a Cs-137 equal to 64.2 pCi/1 which is in geod agreement with the average of the other three.

Teledyne will set up a log for recording aliquots used for EPA samples and record how the aliquot volume was determined.

(k) The EPA requires that water samples be diluted before gamma analysis. That imposes a feature not appropriate for As in the 06/10/94 water sample, it appears that the first aliquot may not the handling have of environmental been accurately prepared. samples.A second aliquot was prepared and counted three times with results in pCi/1 and normalized deviation of:

Co-60 60.6 0.55

' Zn-65 100.0 0.00 Cs-134 22.9 -0.38 l

Cs-137 58.5 3.29 Ba-133 69.8 -0.79 Four of the five are now in good agreement with the EPA results. The Cs-137 is high, but within the control limits when compared to the grand average deviation of all laboratories of 2.89. The grand average was 51.9 pCi/1. For future samples of this type we will have two technicians each prepare an aliquot and compare the counting results to check for preparation technique differences.

F-4

,, , . . . . . . .. .m. = . - - %,- w. - , e .

+ ,n- ... m . , , , m m ..__.m_ _ _ _ _ . _ . . _ . _ . _ _ .m... _ _ . . _ . . . _ _ _ _ _ . _ . . _ _

)

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TABLE F-2 USEPA ENVIRONMENTAL RADIOACTIVITY IJLBORATORY ;

INTERCOMPARISON STUDY PROGRAM I PSEEG Gross Alpha and Gross Beta Analysis ,

of Water (pCi/L) and Air Particulate (pCi/ filter) l PSE&G EPA ,

DATE Mean a s.d. Known ENV SAMPLE CODE MEDIUM ANALYSIS MM-YY Alpha 24 1.2 1525 01-94 EPA-WAT-AB374 Water 62s10 Beta 61:4.2 Alpha 80:2.6 86233 04-94 EPA-WAT-P377 Water 117s18 Beta 118s1.7 Alpha 39:1.2 35s9 08-94 EPA-WAT-GABS 382 APT Beta 5820.6 56 10 Alpha 6022.1 57214 ,

10-94 EPA-APT-P385 Water Beta 14022.5 142 21 57s14 Water Alpha 6422.9 '

10-94 EPA-WAT-P387 26 1.5 23 5 Beta l

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o.d. - one standard deviation of three individual analytical results

- known value plus or minus one sigma as reported by EPA F-5 l

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TABLE F-2 USEPA ENVIRONMENTAL RADIOACTIVITY LABORATORY INTERCOMPARISON STUDY PROGRAM

' PSE&G Gamma Analysis of Milk, Water (pci/L) and Air Particulate (PCi/ filter) l e se ,

PSEEG EPA DATE Mean a s.d. Known l ENV SAMPLE CODE MEDIUM ANALYSIS MM-YY l Water Cs-134 31:1.0 34s5 04-94 EPA-WAT-P377 30:1.2 29 5 Cs-137 Co-60 21:1.5 20s5 i

Water Ba-133 9726.4 90210 06-94 EPA-WAT-G378 48 0.6 50s5 Co-60 Zn-65 134s2.5 134s13 Ru-106 226s12 252s25 ,

Cs-134 37si.7 40s5 Cs-137 50 0.6 49:5 {

l r

APT Cs-137 1420.6 15s5 08-94 EPA-APT-GABS 382 Milk Cs-137 60s1.2 59s5 09-94 EPA-MLK-GS383 1676s31 1715s86 E(1) 75s8 I-131 7522.0 ,

i EPA-WAT-P385 Water Co-60 38s2.0 40:5 10-94 Cs-134 20s1.0 30:5 6

Cs-137 4022.0 3925 ,

Water Co-60 58s2.6 59s5 11-94 EPA-WAT-G386 99s1.0 100s10 Zn-65 Cs-134 25:1.0 24:5 i Cs-137 51s1.2 49s5 ,

Ba-133 76s7.1 73s7 r (1) Reported as ag/l of Potassium .

i h

s.d. - one standard deviation of three individual analytical results

- known value plus or minus one sigma as reported by EPA i

F-6

TABLE F-2 USEPA ENVIRONMENTAL RADIOACTIVITY LABORATORY INTERCOMPARISON STUDY PROGRAM ,

PSE&G !

Tritium Analysis of Water (pCi/L)

. . ee PSE&G EPA ,

DATE Mean e s.d. Known MM-YY ENV SAMPLE CODE MEDIUM ANALYSIS Water H-3 4603:42 4936:494 03-94 EPA-WAT-H376 Water H-3 94802102 99512995 08-94 EPA-WAT-H381 b

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o.d. - one standard deviation of three individual analytical results

- known value plus or minus one sigma as reported by EPA F-7 I

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TABLE F-2 USEPA ENVIRONMENTAL RADIOACTIVITY LABORATORY' j INTERCOMPARISON STUDY PROGRAM ,

PSE&G ;

Iodine Analysis of Water (pci/L) .

e ee- , l l

PSE&G EPA DATE Mean a s.d. Known MEDIUM AMALYSIS MM-YY ENV SAMPLE CODE I-131 11322.3 119212 02-94 EPA-WAT-I375 Water I-131 8222.1 7928 t 10-94 EPA-WAT-I384 Water f

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s.d.

- one standard deviation of three individual analytical results ,

- known value plus or minus one sigma as reported by EPA !

F-8 1

TABLE F-2 l

USEPA ENVIROtOEENTAL RADIOACTIVITY LABORATORY INTERCOREPARISON STUDY PROGRAM PSE&G Strontium-89 and Strontium-90 Analysis of Air Particulates (PCi/ filter),

Milk (pci/L) and Water (pci/L) '

.. h I

PSEEG EPA .i DATE MM-YY ENV SAMPLE CODE MEDIUM AMALYSIS Mean t s.d. Known (

Water Sr-89 26a2 25a5 .

01-94 EPA-WAT-5373 15a5 Sr-90 1420.6 ?

Water Sr-89 1921 20s5 04-94 EPA-WAT-P377 14 0.6 14a5 ,

Sr-90 Water Sr-89 32 7.5 30 5 07-94 EPA-WAT-8379 20a5 Sr-90 18a3 i

APT sr-90 1920.6 20a5 ,

08-94 EPA-APT-GhB8382 ,

)

Milk ar-89 20 3.1 25a5 .

09-94 EPA-MLK-GS383 15a5 :

sr-90 15a0.6 Water Sr-89 31:3 25a5 i 10-94 EPA-WAT-P385 15a5 Sr-90 15 0.6 i l

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o.d. - one standard deviation of three individual analytical results

- known value plus or minus one sigma as reported by EPA F-9

O b O

e APPENDIX G 1

LGS SURVEY <

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APPENDIX G: LGS SURVEYS A Land Use Census around the Limerick Generating Station (LGS) was conducted by Normandeau Associates, RMC Environmental Services Division 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 1994 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.

I 4

G-1

r &

=

Table G 1 ' Location of Nearest Residence,' Garden and' Milk Farm within a Five Mile Radius of Umerick Generating Station,1994 (Distance in Miles)

Residence Garden") Milk Farm ,

Sector 0.6 1.6 4.7 ,

N NNE 0.5 0.5 NE 0.8 1.5

~

ENE 0.6 2.5 E 0.6 1.1 0.5 1.2 1.1

ESE 1

1.0 1.1 4.6 SE 1.0 1.2 4.7 SSE 0.8 1.2 2.3 S

1.0 1.4 1.8 SSW-0.6 0.6 3.0 SW 0.8 1.5 2.8 WSW 2.2 2.8 W 0.6 WNW 0.7 1.0 NW 1.3 1.6 NNW 0.9 0.8 -

(1) Garden greater than 500 square feet (2) Goat Milk G-2

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ML20087H723

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