ML20247J717

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Radiological Environ Monitoring Program Annual Rept for Calvert Cliffs Nuclear Power Plant Units 1 & 2,1988
ML20247J717
Person / Time
Site: Calvert Cliffs  Constellation icon.png
Issue date: 12/31/1988
From: Bartel L, Bauereis E, Mirela Gavrilas
BALTIMORE GAS & ELECTRIC CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 8904050080
Download: ML20247J717 (74)
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RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL REPORT For The CALVERT CLIFFS NUCLEAR POWER PLANT UNITS 1 AND 2 January 1, - December 31,1988

~9 Prepared by BALTIMORE GAS & ELECTRIC COMPANY MARCH 1989 SE Y i' O O 17

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RADIOLOGICAL ENVIRONMENTAL l MONITORING PROGRAM FOR THE <

CALVERT CLIFFS NUCLEAR POWER PLANT 1' UNITS 1 AND 2 JANUARY 1 - DECEMBER 31, 1988 i

- L. J. BARTAL ,

E. I. BAUEREIS l

M. GAVRILAS

- E. C. REICHERT l L

i BALTIMORE GAS AND ELECTRIC COMPANY ]

MARCH 1989 I

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January 1 - December 31, 1988 Docket Nos. 50-317/318 TABLE OF CONTENTS Pace List of Figures------------------------------ lii List of Tables------------------------------- v 1

A. Summary----------------------------------- 1 B. Introduction------------------------------ 3 i 1

C. Program-----------------------------_----- 4 )

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C.1 Objective----------------------------- 4 j C.2. Sample Collection---------------------

4 C.3 Data Interpretation------------------- 4' C.4 Program Exceptions-------------------- 4 D. Results and Discussions------------------- 5.

D.1 Aquatic Environment-------------------

  • 5 D.2 Atmospheric Environment--------------- 6 D.3 Terrestrial Environment--------------- 7 D.4 External Radiation-------------------- 8 E. Conclusion-------------------------------- 8 F. References-------------------------------- 13 Appendix A - Environmental Sampling Locations 17 i

Appendix B - Analytical Results-------------- 27 Appendix C - EPA Cross-Check and Quality _

j Assurance Programs-------------- 51 Appendix D - Land Use Survey----------------- 63 l

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January 1 - December 31, 1988 Docket Nos. 50-317/318 i

LIST OF FIGURES -

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Fiaure Title Pace A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of-Calvert Cliffs Nuclear Power Plant---------------------------------- 21 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations. Scale 1" = 1.35 km--------------- 23-l l

A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations. Scale 1" = 4.0 km---------------- 25 i

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January 1 - December 31, 1988 Docket Nos. 50-317/318 LIST OF TABLES Table TITLE Pace 1 Synopsis of the 1988 Calvert Cliffs Nuclear Power Plant Radiological Environmental' Monitoring Program-------------------------- 11 2 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear i Power Plant Uni,ts 1 and 2------------------- 12 I A-1 Locations of.the' Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant---------------------------------' 19 B-1 Concentrations of Tritium and Gamma Emitters in Bay Water-------------------------------- 31 B-2 Concentrations of Gamma Emitters in the Flesh of Edible Fish------------------------ 32 B-3 Concentrations of Gamma Emitters in Oyster

. Samples------------------------------------- 33 B-4 Concentrations of Gamma Emitters in Shore-line sediment------------------------------- 34

- B-5 Concentrations of Iodine-131 in Filtered Air----------------------------------------- 35 B-6 Concentrations of Beta Emitters in Air Particulate-------------------------------- 37 B-7 Concentrations of Gamma Emitters.in Air Particulate-------------------------------- 39 B-8 Concentration of Gamma Emitters in Vegetation---------------------------------- 41 B-9 MDL Ranges for Gamma Spectroscopy----------- 44 B-10 LLD's for Gamma Spectroscopy---------------- 45 B-11 External Radiation-------------------------- 47 C-1 Results of EPA Cross Check Program for 1988- 53 C-2 Results of Quality Assurance Program for 1988------------------------------------ 55 C-3 Teledyne Isotopes' Typical MDL's for Gamma Spectroscopy-------------------------------- . 61' D-1 Land Use Survey----------------------------- 65

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v b-January 1 - December 31, 1988 Docket Nos. 50-317/318-A.

SUMMARY

During this operating period for Calvert Cliffs - Nuclear Power Plant Units 1 and 2, a total of 703 analyses were performed on 635' environmental samples, and 1096 thermoluminescent dosimeters

-(TLD's) were analyzed for ambient radiation exposure ' rates. In addition, 161 analyses were performed on~131 quality - assurance samples as part of the Environmental Protection Agency's Cross-l Check Program and the - Quality Assurance ' Program set up with l Teledyne Isotopes Company.

l The ~ samples collected from the aquatic environment included bay water, fish, oysters, and shoreline sediment samples. Bay. water was analyzed for tritium and gamma emitters. Fish, oysters, and shoreline sediments were analyzed for gamma emitting radionu-clides.

Monitoring the atmospheric environment involved sampling the-air

- at various locations surrounding the plant. Air particulate and ~

gaseous iodine were collected on glass - fiber filters and silver zeolite molecular sieve cartridges, respectively. The particu-late filters were analyzed for beta activity, and gamma emitting nuclides. The molecular -sieve cartridges were analyzed for airborne I-131.

Samples from the terrestrial environment included only vegetation samples, which were collected and analyzed for gamma emitters and.

I-131.

Measurements of external radiation were performed by analyzing TLD's from twenty-three locations surroumling the plant.

l Low levels of various man-made fission and activation by-products were observed in the environment surrounding the plant during the year 1988. Some of these observations were attributed to fallout from past atmospheric weapons testing. The others _ cited were related to the operation of the ' plant (viz., Ag-110m in oyster samples and I-131 in silver zeolite cartridges).

In order to assess the plant's contribution to the ambient radiation levels of the surrounding environment,. dose calcula-tions were performed using the plant's affluent release data, on site meteorological data, and appropriate pathways. The results of these dose calculations indicate:

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d January 1 - December 31, 1988 Docket Nos. 50-317/318

a. a maximum thyroid dose of 1.13 mrem via liquid and gaseous pathways which is about 1.5% of the acceptable limit of 75 mrem /yr as specified in 40 CFR 190;
b. a maximum whole body dose of 0.12 mrem via liquid and gaseous pathways which is about 0.5% of the acceptable limit of 25 mrem /yr as specified in 40 CFR 190;
c. a maximum calculated dose to all other organs via liquid and gaseous pathways was equal to 0.5 mrem from the GI tract and skin, respectively. This dose was about 2% of the allowable limit of 25 mrem /yr as specified in 40 CFR 190.

Thus it is concluded, based upon the levels of radioactivity observed and the various dose calculations performed, that the operation of Calvert Cliffs Nuclear Power Plant Units 1 and 2 did not cause any significant impact on the surrounding environment _

during the year 1988.

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, January 1 _ December 31,-1988 Docket Nos. 50-317/318 l

B. INTRODUCTION Baltimore Gas 'and Electric Company- (BG&E) ' has been conducting a radiological environmental monitoring-program in the. environs.of the Calvert Cliffs Nuclear Power Plant since the summer of 1970.

The Calvert Cliffs site is an operating nuclear. generating station consisting of two pressurized water reactors.' Unit 1 achieved criticality on October-7, 1974 and' commenced commercial operation in May 1975. Unit-2 achieved criticality on: November 30, 1976.and went into commercial operation April 1, 1977.

Originally the radiological environmental monitoring program'was conducted under separate Environmental Technical . Specifications (25,26). On July 29, 1977 the monitoring program' began operation-under a combined set of Technical Specifications (27). The.

program- has ' operated as such until March 1,- 1985, when- the' Environmental Technical Specifications were' revised to reflect a new generic format for radiological environmental monitoring

, adopted by the ~ Nuclear Regulatory Commission - (28) . Changes in l the program (sample locations, sample types, and/or_ sampling frequencies) have been implemented to conform to these' revisions.

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l Results of the monitoring program for. the .preoperational and previous operational periods through. December 31, 1986,have been reported in a series of documents (1-24).

Results of the monitoring program for the current operational l period of January 1, 1988 through December 31,'1988 are-included in this report. The report presents the content of the l j Radiological Environmental ' Program (Table 1), the' sampling locations (Appendix A), the summary of the analytical results of 4 1988 (Table 2), a compilation of the' analytical data for 1988 (Appendix B), the results of the EPA Intercomparison. Program and the Quality Assurance Program (Appendix C) , and the results of the Land Use Survey (Appendix'D). Interpretation of the data and conclusions are presented in the body of the report.

The environmental surveillance data collected during.. this reporting period were compared with that generated in previous periods whenever possible in. order to evaluate the environmental radiological impact of the operation of Calvert Cliffs Nuclear Power Plant Units 1 and 2 during the year 1988.

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January 1 - December 31, 1988 Docket Nos. 50-317/318 C. PROGRAM C.1 Obiectives The objectives of the radiological environmental monitoring program are:

a. To determine whether any statistically significant increase occurs in the concentration of radionuclides in important pathways,
b. To detect any measurable buildup of long-lived radio-nuclides in the environment,
c. To monitor and evaluate ambient radiation levels,
d. To verify that radioactivity and ambient radiation levels attributable to plant operation are within the limits specified in the Technical Specifications (28) and the Environmental Radiation Protection Standards as set forth in 40 CFR Part 190.

C.2 Samole Collection .

The locations of'the individual sampling stations are listed in Table A-1 and shown in Figures A-2 and A-3. ,All samples were collected by contractors to, or personnel of, the Baltimore Gas and Electric Company according to BG&E Operating Procedures (29).

Radiochemical analyses were performed by BG&E in accordance with ,

established laboratory procedures (31).

C.3 Data Interpretation It is the characteristic of environmental monitoring data that many results occur at or below the minimum detectable level (MDL). In this report, all results at or below the relevant MDL are reported as being "less than" the MDL value.

C.4 Procram ExceDtions Samples of Spot fish were not available in the Intake Area (Ia2) during the month of September. The sampling area was expanded, and Spot samples were obtained from Long Beach, a nearby area.

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  • January 1 - December 31, 1988 Docket Nos. 50-317/318 D. RESULTS AND DISCUSSION All the environmental samples collected during the year were analyzed using BG&E's laboratory procedures (31). The analytical results for this reporting period are presented in Appendix B and also summarized on an annual basis in Table 2. For the purposes of discussion, the analytical results are divided into four categories. The categories are the Aquatic Environment, the Atmospheric Environment, the Terrestrial Environment, and Exter-nal Radiation. These categories are further divided into subcat-egories according to sample type (e.g., Bay Water, Aquatic Organisms, etc. for the Aquatic Environment).

D.1 Acuatic Environment The aquatic environment surrounding the plant was monitored by analyzing samples of bay water, aquatic organisms, and shoreline sediment. These samples were obtained from various sampling locations on the Chesapeake Bay near the plant.

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D.1.a Ra.y, a Water Monthly bay water samples were taken from two locations during the year. These locations are the Intake Area (sample code Wal) and the Discharge Area (sample code Wa2). The samples were obtained from a composite sampling system operating at each location for the entire sampling period. These samples wer'e analyzqd for tritium and gamma emitters.

The tritium analyses, performed on quarterly composites of the monthly bay water samples, showed no detectable concentrations of tritium in any of the samples analyzed.

Monthly analyses for gamma emitters exhibited no detectable concentrations of either fission or activation products, which could be related to the operation of the plant.

D.1.b Acuatic Oraanisms Samples of aquatic organisms were obtained from four locations d:tring the year. Samples of fish, when in season, were taken from the Intake Area (sample code Ial) , Long Beach (a sampling  !

site near the plant, because no fish were available at the Intake {

Area--sample code Ia2), and from the Patuxent River (sample codes Ia4 and Ia5) . Oyster samples were obtained quarterly from Camp Conoy (sample code Ia3) and Kenwood Beach (sample code Ia6).

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Edible portions of these samples were analyzed for gamma emit-ters.

Gamma spectrometric analyses of the fish from both locations exhibited detectable concentrations.of'Cs-137 in the samples of Bluefish collected from the Intake Area (Ial) and the Patuxent River (Ia4) . during the month of. August. The concentrations were 10+/-7 and - 18+/-8 'pci/kg respectively. The presence of this radionuclides in these samples . ~ is most probably due to fallout from past nuclear weapons testing.

Quarterly ~ analyses for gamma emitters in~ oyster, showed detect-able concentrations of a plant-related radionuclides, Ag-110m,' in samples obtained from Camp Conoy (Ia3) . The observed concentra-tions ranged from 45+/-13 to 77+/-14 pCi/kg. The ~ presence ' of this r a d i o n u c l i d e . a t .. t h e s e concentration ' levels is typical of that observed in previous operating periods (7-24).-

D.l.c Shoreline Sediment

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Semiannual shoreline' sediment samples were taken from one loca-tion during the year. This location'is the shorel'ine at Camp )

1 Conoy (sample code Wb1). The samples'obtained'from'this location j were analyzed for gamma emitters.

I Gamma spectrometric analyses of 'these samples exhibited' no l detectable concentrations'of any fission or activation, products.

D.2' Atmospheric Environment The atmospheric environment was monitored by analyzing air particulate filters and silver zeolite cartridges (for trapping radioiodine species).. These' samples were collected from various locations surrounding the plant.

D.2.a Air Particulate Filters Weekly composite air particulate filter samples were collected from five locations during the year. These locations are on site (sample code A1), Camp Conoy Road Near the Emergency. Siren (sample code A2), Bay Breeze Road (sample code A3), Lusby (sample code A4),-and at the Emergency Offsite Facility (sample code A5).

These samples were analyzed for beta activity and gamma emitters.

Weekly analyses for beta activity on air particulate fLiters collected from all five locations.showed values characteristic'of background levels (7-24). ,

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Gamma spectrometric analyses of monthly 'composited air parti-:

culate samples exhibited no detectable concentrations of any fission or activation products in any of these samples.

D.2.b Air Iodine Weekly composited silver zeolite cartridges -(for trapping radiciodine species) were collected from . five locations during the year. These locations are on site (sample code A1) , Camp Conoy Road Near the Emergency Siren (sample code A2), Bay Breeze Road (sample code A3), Lusby (sample code A4), and at the Emer-gancy offsite Facility (sample code A5). These samples were analyzed for radiciodine species.

Weekly radioiodine' analyses of silver zeolite cartridges collect-

.ed from all five locations exhigited only twp detecpable concen-pci/m at location trations of I Al and 27x10~gl31

+/-(viz . ,_f 2x10~

20x10 pCi/m 3 +a/-t 2location 0x10~ A3). Both of them were observed during the week of 01/04/88 to 01/11/88. 'As can be readily seen, both values have a very large counting error, implying = that they could be the result of ~ statistical . fluctua-tions of the spectral data. These values are also very close to the observed MDL's for the resjpCi/m ranged from 4.0x10~

~ of thy. Air Iodine results which to 9.2x10 -

D.3 Terrestrial Environment The terrestrial environment was monitored by analyzing samples of vegetation collected monthly, when available,'from various samp-ling locations near'the plant.

D.3.a Vecetation i

vegetation samples were collected from three locations.during the year. These locations are Bay Breeze Road (sample codes Ibl, Ib2, and Ib3), on Site Before the Entrance to Camp Conoy (sample codes Ib4, Ib5, and Ib6), and the Emergency ' Offsite Facility (sample codes Ib7, Ib8, and Ib9). These samples were analyzed .

4 for gamma emitters, including analyses for I-131.

Gamma spectrometric analyses of these samples . revealed the presence of only a single man-made radionuclides .and only in one vegetation sample. Casium-137 was observed in a' cabbage sample taken from the garden located at Bay Breeze Road (Ib1)~during'the month of May. The concentration of this radionuclides was 31+/-17 pCi/kg. Its presence is most probably attributable to ' past atmospheric nuclear weapons testing. Levels such as this have been observed in vegetation samples taken from' farms near the plant during previous operational periods (7-24).  !

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D.4 External Radiation Thermoluminescent dosimeters were collected monthly from twenty-three locations surrounding the plant. The locations are On Sito Along the Cliffs (sample code DR1), Route 4 Auto Dump (sample code DR2), Giovanni's Tavern (sample code DR3), White Sands (sample code DR4), John's Creek (sample code DR5), Lusby (sample code DR6), On Site (sample code DR7), On Site Near the Emergency Siren (sample code DR8), Bay Breeze Road (sample code DR9),

Decatur and Calvert Beach Roads (sample code DR10), Dirt Road off Mackall and Parran Roads (sample code DR11), Mackall and Bowen Roads (sample code DR12), Wallville (sample code DR13), Rodney Point (sample code DR14), Mill Bridge and Turner Roads (sample code DR15), Appeal School (sample code DR16), Cove Point and Little Cove Point Roads (sample code DR17), Cove Point (sample code DR18), Long Beach (sample code DR19), On Site Near Shore (sample code DR20), Emergency Offsite Facility (sample code DR21), Solomons Island (sample code DR22), and Taylors Island (sample code DR23).

A comparison of the means and ranges of the current TLD data with those of both the historical data and the recional data shows that a plant-related contribution to the measu' red exposure rate '

was not discernable. -

E. Conclusion Low levels of various man-made fission and activation by-products were observed in the environment surrounding the plant during the year 1987. Some of these observations were attributed to fallout from past atmospheric weapons testing. The others cited were related to the operation of the plant (viz., Ag-110m in oyster samples and I-131 in silver zeolite car cidges).

In order to assess the plant's contribution to the ambient i radiation levels of the surrounding environment, dose calcula-  !

tions were performed using the plant's effluent release data, on site meteorological data, and appropriate pathways. The results of these dose calculations indicate:

o Gaseous Pathways A maximum thyroid dose of 1 mrem to an infant via the plume, ground,. vegetable, cow milk, and inhalation pathways at the nearest dairy cow located 4.8 km SSW of Calvert Cliffs, which is about 1.3% of the acceptable limit of 75 mrem / year as specified in 40 CFR 190,

" Environmental Radiation Protection Standards for Nuclear Power Operations".

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- A maximum whole body gamma dose of 0.05'arem at the site boundary, 2.1 km S of Calvert Cliffs, which is about 0.2% of the acceptable. dose limit of 25--

arem/ year as specified in 40 CFR 190.

- A maximum dose to any organ, in this case _ skin,.of 0.06 aren'at the site boundary, 2.1 km S'of Calvert i Cliffs, which.is about 0.2%-of the acceptable dose limit i of 25 mram/ year as specified in 40 CFR 190.. i o Licuid Pathways

- A' maximum thyroid dose or 0.13 mram, which is about-0.2% of.the. acceptable v.ose limit of 75'aram/ year as specified-in 40 CFR 190.

I A maximum whole body dose of 0.07 mram via all liquid' -

pathways, which is about 0.3% of_the acceptable ~ dose limit of 25 mram/ year as sat forth in 40.CFR 190.

A maxiaum dose to any organ, in-this case the GI tract,  !

- of 0.4 mram, which is less than~2% of the acceptable dose limit of 25-mram/ year as specified in.40 CFR 190.

. o Gaseous and~Licuid Pathways Combined A maximum thyroid dose of 1.13 mram via. liquid and gaseous pathways, which is about 1.5% of the acceptable limit of 75 mrom/ year as specified in 40 CFR 190.

A maximum whole body dose of 0.12 mram via liquid and gaseous pathways which is about 0.5% of the acceptable limit of 25 mrem / year as specified in 40 CFR 190._-

A maximum calculated dose to all other. organs via liquid and gaseous pathways was equal to 0.5 mram from the GI tract and skin, respectively.- This dose was about 2% of the allowable limit of 25 mram/ year as specified in 40 CFR 190.

In all cases, the calculated - doses are a small fraction of the applicable limits specified in 40 CFR 190. On_this basis it is concluded that the operation of Calvert Cliffs Units 1 and 2 met the criteria of 40 CFR 190 during 1988.

In addition it is also concluded, based _fupon the levels of radioactivity observed and the various dose calculations per-formed, that the operation of Calvert Cliffs Nuclear Power Plant 9

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January 1 - N amhar 31, 1988 Docket Nos. 50-317/318 TAB 2 1 SYNOPSIS OF 'IHE 1988 CALVERT CLIFFS NUC2AR POWER FIANT RADIOIDGICAL ENVIPCROENIAL M2TI'IORING PROGRAM SAMPLING

  • NUMBER OF NUMBER ANALYSIS
  • NUMBER SAMPIE TYPE FREQUENCY IDCATIONS CDIIECTED ANALYSIS FREQUENCY ANALYZED 1

! AQUATIC DNIRONMENT l Bay Water M 2 24 H-3 QC 8 Gama (GeLi) M 24 Fish (1) A 2 4 Gama (GeLi) A 4' Oysters Q 2 8 nanna (GeLi) Q 8

. Shoreline Sediment SA 1 2 Gama (GeLi) SA 2 l AItOSPHERIC

. DWIRONMENT Air Iodine (2) W 5 263 I-131 W 263 1

Air Particulate (3) W 5 263 Gross Beta W 263 Gamma (GeLi) MC 60

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n2wsmIAL I ENVIBCNMDTT Vegetation (4) M 3 71 Gama (GeLi) M 71 DCERNAL

l. RADIATION 1

Ambient Radiation M 23 1096 TID M 1096 l

  • W - Weekly, M - Monthly, Q - Quarterly, SA - Semiannual, A - Annual, C - Ccuposite. l (1) Once in season July-September.  !

(2) 'Iha collection device contains silver zeolite.

(3) After a mininnn decay of 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, beta counting is performed. Gamma sr4L.vscopy is performed on nonthly canposites of weekly samples.

(4) M.:nthly durire growing season. )

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Jaruary 1 - Decenber 31, 1988 Docket tios. 50 317/318 TABLE 2 DNI1ONENTAL RADIOIDGICAL !GITCRI!C PRO @AM #10AL SlltfARY EIR CAulERI CLIFES !UCLEAR IGER FIANT LNITS 1 No 2 DOTER 105. 50-317/318 CALVERT Ct1NIY, MARYIRO DLRDC 'DE IIRIOD JANLIARY 1, 1988 10 DECDEER 31, 1988 Mediun Or Type And lower Linnit Irxiicator location With Highest Control l

PatN ay Sa91ed Total ! Amber Of locations Arrual Mean** tocations (Unit of Of Analyses Detection Mean (F)* Nane Mean m

  • Mean (F)*

l Measurernent) Perfonned (11D) Range Distance & Range Range Direction m]AnC DNDUNENT Fish Gama(4) 4 (pC1/kg) Cs-137 20 10(1/2) Intake Area 10(1/2) 18(1/2)

N/A l Oysters Gamna (8)

(pci/kg) A6 110n 17 58(4/4) C Coney Ia3 58(4/4) --

(45-77) 0.9 b E . (45-77) --

A110SHERIC ,

DuBUNENT Airgarticugate Beta (265) 0.3 1.6(210/212) lusby A4 1.7(53/53) 1.8(53/53)

(10' pCIAn ) (0.5-4.2) 2.9 b SSW (0.7-4.2) (0.8-3.4) i Airjodine 3 I 131(265) 6.8 25(2/210) B"f Brz A3 27(1/53) -

(10' pCLAn ) (22-27) 2.6 b SSE -- --

HPRESIRIAL DunucDe Vegetation Gama(84) l (pci/kg) Cs 137 18 31(1/47) Bay Brz Ib1 31(1/7) --

-- 2.6 b SSE - --

EXIIRNAL RADIAUCN Anbient Exposure - 3.36(238/238) 09 Conoy IR8 4.19(11/11) 3.58(36/36)

Radiation ** Pete (275) (2.69 4.42) 2.5 b SSE (3.82 4.42) (2.74 4.44) l (nft/30 day) i

  • Mean and range based upon detectable measurements only. Fraction F of detectable measurements at i specified locatim is indicated in parentheses. .
    • A slight decrease in ta.s averaSe value for both indicator and e.ontrol locations relative to previous l years has been observed. Studies are in progress to detaunine the cause of this decrease, 12 I i

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January 1 - December.31, 1988 Docket Nos. 50-317/318 F. REFERENCES (1) Cohen, L. K., "Preoperational Environmental Radioactivity Monitoring Program at Calvert Cliffs Units 1 and 2", HEE.

No. 882 Semiannual Report' January-June 1971, December 1971; NUS No. 1025 Annual Report 1971, March 1973.

1 (2) Cohen, L. K., "Preoperational EnvironmentalLRadioactivity Monitoring. Program at Calvert Cliffs Units 1 and 2", HME.

No. 1137 Annual Report 1972, December 1973.

(3) Cohen, L. K. and Malmberg, M. S.,."Preoperational Environmental Radioactivity Monitoring Program at Calvert.

Cliffs Units 1 and 2", NUS No. 1188, Annual Report 1973, October 1974.

(4) Radiation Management Corporation, Calvert Cliffs Nuclear Power Plant Radiological Environmental Analyses, December 1971 - December 1973 RMC-TR-74-13, August 1974.

(5) Malmberg, M. S.," Environmental Radioactivity Monitoring Program at Calvert Cliffs Nuclear Power Plant", HUE No. 1331 Annual Report 1974, February 1975.

(6) Malmberg, M. S., "Preoperational Environmental Radio-activity Monitoring Program at Calvert Cliffs Units 1 and 2", NUS No. 1333, Data-Summary Report, September 1970 to September 1974, July 1975.

(7)- Radiation Management Corporation, Calvert Cliffs Nuclear Power Plant - Radiological Environmental Surveillance Epocram January 1 to June 30, 1974, December'1974.

(8) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant - Semiannual Operating Report, July -

December 1974, March 1975.

(9) Radiation Management Corporation, Radiological Environ-mental Monitorina Procram'- Semiannual Report for Calvert Cliffs Nuclear Power Plant. July 1 throuch December 31, 1974, RMC-TR-75-06, August 1975.

(10) Baltimore Gas and Electric Company and Radiation Manage-ment Corporation, Calvert Cliffs Nuclear Power Plant l Radi21ocical Environmental Monitorina Procram Semiannual 13 f-L.

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January 1 - December 31, 1988 Docket Nos. 50-317/318 Report, January 1 - June 30, 1975, RMC-TR-75-11, September 1975.

(11) Baltimore Gas and Electric Company and Radiation Manage- l ment Corporation, Calvert Cliffs Nuclear Power Plant l Radiological Environmental Monitorina Procram Semiannual Report, July 1 - December 31, 1975, RMC-TR-76-02, March 1976.

(12) Baltimore Gas and Electric Cdmpany and Radiation Manage-ment Corporation, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitorine Procram Semiannual ReDort, January 1 - June 30, 1976, RMC-TR-76-06, September 1976.

(13) Baltimore Gas and Electric Company and Radiation Manage-ment Corporation, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitorine Procram Semiannual Report, July 1 - December 31, 1976, RMC-TR-77-07, March 1977. 1 (14) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitorina Procram Anpual Report, January 1 - December 31, 1977, March 1978.

(15) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitorina Procram Annual Reoort, January 1 - December 31, 1978, March 1979.

(16) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitorina Procram Annual Reoort, January 1 - December 31, 1979, March 1980.

(17) Baltimore Gas and Electric Company, Q31 vert Cliffs Nuclear Power Plant Radiological Environmental Monitorina Procram Annual Recort, January 1 - December 31, 1980, March 1981.

(18) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitorine Procram  ;

Annual Report, January 1 - December 31, 1981, March 1982. 1 (19) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitorina Procram Annual Reoort, January 1 - December 31, 1982, March 1983.

(20) Baltimore Gas and Electric Company, Calvert Cliffs Nucle 3x Power Plant Radiological Environmental Monitorina Procram' 14 '

January 1 - December 31, 1988 Docket Nos. 50-317/318 Annual Report, January 1 - December 31, 1983, March 1984.

(21) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitorina Proaram Annual ReDort, January 1 - December 31, 1984, March 1985.

(22) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitorina Procram Annual Recort, January 1 - December 31, 1985, March 1986.

(23) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitorina Procram Annual Recort, January 1 - December 31, 1986, March 1987.

(24) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear l Power Plant Radiological Environmental Monitorina Procram l

Annual ReDort, January 1 - December 31, 1987, March 1988.

(25) Calvert Cliffs Nuclear Power Plant, Unit Number 1, License

. No. DPR-53, Appendix A, Technical Specifications; Appendix B, Environmental Technical Specifications.

. (26) Calvert Cliffs Nuclear Power Plant, Unit Number 2, Licdnse No. DPR-69, Appendix A, Technical Specifications; Appendix B, Environmental Technical Specifications.

(27) Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 and 2, License Nos. DPR-53 and DPR-69, Amendment No. 23 for Unit No. 1, Amendment No. 7 for Unit No. 2, Appendix A Technical Specifications; Appendix B, Environmental Technical Specifications.

l (28) Calvert Cliffs fuelear Power Plant, Unit Nos. 1 and 2, i License Nos. DPh-53 and DPR-69, Amendment No. 100 for Unit l No. 1, Amendment No. 83 for Unit No. 2, Appendix A Technical Specifications. l j

l (29) Baltimore Gas and Electric Company, Operatina Procedures l for Environmental Monitorina Activities at Calvert Cliffs Nuclear Power Plant, OP-2 to OP-6, 1988.

(30) Teledyne Isotopes, Laboratorv Procedures, PR-032-4 to PR032-1E, 1982.

(31) Baltimore Gas and Electric Company, Labpratory Manual Chemical Encineerina and Test, 1988.

l 15

)

___v _ _

i January 1 - December 31, 1988 Docket Nos. 50-317/318 (32) Calvert Cliffs Nuclear Power Plant, Docket Nos. 50-317/318 Semiannual Effluent Release Reports: Januarv - June 1988 and July - December 1988.

(33) U.S. NRC Regulatory Guide 1.109, " Calculation of Annual l Doses to Man from Routine Releases of Reactor Effluents  !

for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I", Revision 1, October 1977.

1 (34) U.S. NRC Regulatory Guide 1.111, " Methods'for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light-Water-Cooled Reactors",

Revision 1, July 1977. j

(35) Baltimore Gas and Electric Company, " Land Use Survey I I Around Calvert Cliffs Nuclear Power Plant", BG&E-EP2, l 1985.

(36) Baltimore Gas and Electric Company, " Land Use Survey l Around Calvert Cliffs Nuclear Power Plant", 1986. l (37) Baltimore Gas hnd Electric Company, " Land Use Survey -

  • Around Calvert Cliffs Nuclear Power Plant", 1987.

(38) Baltimore Gas and Electric Company, " Land Use Survey

  • Around Calvert Cliffs Nuclear Power Plant", 1988.

l l

l l

l l 16 ,

J l e I _ _ _ _ - - . -

January 1 - December 31, 1988 Docket Nos. 50-317/318 APPENDIX A Appendix A contains information .concerning -the environmental samples which were collected during the period January 1, 1988 to December 31, 1988.

Sample locations and specific' information about individu31 locations are given in Table A-1. Figure A-1 shows the location of the Calvert Cliffs Nuclear Power Plant with respect to South-ern Maryland and the Chesapeake Bay. Figures A-2 and A-3 show the locations of the sampling sites with respect to the plant site at different degrees of detail.

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5 17

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January 1 - Deamb e 31, 1988 Docket Nos. 50-317/318 TABIE A-1 IOCATICHS OF DNIRCNMENIAL SAMPLING STATIONS FOR 'IHE CALVERT CLIFFS NUCIEAR POWER FIANT Distance

  • Direction Station Descriptial (Kilaneters) (Sector)

Al On site before entrance to Cang Conoy 0.7 S A2 cm:p Canoy Road near wau.psy siren 2.5 SSE A3 Bay Breeze Road 2.6 SE A4 Route 765 Insby 2.9 'SSW l AS Emergency Offsite Facility (EOF) 19.3 WNW IR1 On site along cliffs 0.6 NW <

22 Route 765 auto dunp 2.7 WNW j IR3 Route 765 Giovanni's Tavern (Knotty Pine) 2.3 W j IR4 Route 765 across fran White Sands sign 2.0 WSW IR5 Route 765 John's Creek 2.4 SW IR6 Route 765 Insby 2.9 SSW IR7 On site before entrance to Cang Conopy 0.7 S IRS Canp Coney Road near emergency siren 2.5 SSE IR9 Bay Breeze Road 2.6 SE IR10 Calvert Beach Rcad and Decatur Street 6.4 IM ERll Dirt road off Mackall & Parran Roads 6.6 NNW IR12 Mackall and Bowen Roads 6.7 W l ER13 Mackall Road near Wallville 6.1 WSW IR14 Rodney Point 6.4 SW IRIS Mill Bridge and Turner Roads 6.2 SSW IR16 Across frun Appeal School 6.5 S j IR17 Cove Point arxi Little Cove Point Roads 5.9 SSE ER18 Cove Point 7,1 SE .

IR19 Icng Beach 4.4 NW IR20 On site naar shore -0.4 NNW  ;

l IR 1 Emergency Offsite Facility (IDF) 19.3 WNW IR22 Solanons Island 12.5 S IR23 Taylors Island 12.6 ENE Ial,2 Intake area 0.2 NN1, Ia3 Canp Conoy 0.9 E Ia4,5 Patuxent N/A N/A Ia6 Kenwood Beach 10.7 N!M Ibl,2,3 Off Bay Breeze Road 2.6 SSE Ib4,5,6 On site before entrance to Cang Conoy 0.7 S 19

)

January 1 - N amhar 31, 1988 ,

Docket Nos. 50-317/318 TABLE A-1 (CDNTINUED) i IocATICNS OF DNIBONMENIAL SAMPLING STATIONS FOR 'IHE CALVERI CLIFES NUC2 EAR POWER FIANT Distance

  • Direction Station Description (Kilcznetars) (Sector)

Ib7,8,9 Eisiu.wcf Offsite Facility (EOF) 19.3 MM Wal Intake area 0.2 mm Wa2 Discharge Area 0.3 N.

Nbi shoreline at camp cancy 0.6 ESE

  • Distance frem the central point between the two containment kn41d49 .

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January 1.- December 31, 1988 Docket Nos. 50-317/318 APPENDIX B Appendix B is a presentation of the analytical results of the 1988 '

7 Calvert Cliffs Nuclear' Power Plant Environmental Monitoring Pro-

! -. gram.

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January 1 - December 31, 1988 Docket Nos.- 50-317/318 I

TABLE OF CONTENTS -

ANALYTICAL RESULTS Table No. Table Title Pace )

i B-1 Concentrations'of Tritium and Gamma Emitters in Bay Water--------------------------------------- 31 1

Concentrations of Gamma Emitters in the Flesh of 1

B-2 Edible Fish------------------------------------- 32 B-3 Concentrations of Gamma Emitters in Oyster Samples----------------------------------------- 33 B-4 Concentrations of Gamma Emitters in Shoreline Sediment Samples--------------------------------- 34 i,

B-5 Concentrations of Iodine-131 in Filtered Air---- 35 .l1 B-6 Concentrations of Beta Emitters in Air Particulate------------------------------------ 37-l

! B-7 Concentrations of Gamma Emitters in Air Particulate------------------------------------ 39 B-8 Concentrations of Gamma Emitters in Vegetation-- -41 B-9 MDL Ranges for Gamma Spectroscopy-------------- 44 l

l B-10 LLD's for Gamma Spectroscopy-------------------- 45 i l

B-11 External Radiation------------------------------ 47 l

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- _ ._._.-._-___ _ _.__._._ _ _ _ _ - l

v

. January 1 - December 31,.1988 l

Docket Nos. 50-317/318 TABLE B-1 CONCENTRATIONS.0F TRITIUM AND GAMMA EMITTERS

  • IN BAY WATER (Results in Units of pCi/L +/- 2 Sigma) .

Gamma.

Date Sample Code Tritium ** E'mitters 01/15/88 Wal Intake Wa2 Discharge

< 156 *

( 02/15/88 Wal I Wa2 < 155 l

03/15/88 Wal Wa2 04/15/88 Wal Wa2 05/15/88 Wal < 154 *

. Wa2 < 156

  • 06/15/88 Wal Wa2

. i 07/15/88 Wal

  • Wa2
  • 08/15/88 Wal < 160
  • Wa2 < 161
  • 09/15/88 Wal
  • Wa2
  • 10/15/80 Wal
  • Wa2
  • l l 11/15/88 Wal < 165
  • Wa2 < 160
  • l 12/15/88 Wal
  • Wa2
  • l l
  • Naturally occurring K-40 was observed in all samples. All other gamma emitters not cited were < MDL; typical MDL's are given in Table B-9.
    • Quarterly results.

l 31 l.

- . - - - -.. _. ..______-_______.__________O

January 1 - December 31, 1988 ,

Docket Nos. 50-317/318 TABLE B-2 CONCENTRATIONS OF GAMMA EMITTERS

  • IN THE FLESH OF EDIBLE FISH (Results in Units;of pCi/kg +/- 2 Sigma)

Sample Sample Gamma Sample Code Date Type Emitters Bluefish ***

Ia1 Intake 07/19/88 (Long Beach) 09/19/88 Spot Ia4 Patuxent 07/10/88 Bluefish River ** ,

Ia5 Patuxent 09/22/88 Spot .-]

River ** '

)

l

  • Naturally occurring K-40 was observed in all samples.' All other gamma emitters not cited were < MDL; typical MDL's are given in Table B-9.
    • Control location.
      • Cesium-137 was observed at a concentration of 10+/-7 pCi/kg.
        • Cesium-137 was observed at a concentration of .18+/-8 pCi/kg.

1 l

32 l L

I 3 L

January 1 - December 31, 1988 Docket Nos. 50-317/318 l

TABLE B-3 CONCENTRATIONS OF GAMMA EMITTERS

  • IN OYSTER SAMPLES (Results in Units of pCi/kg +/- 2 Sigma) 6 Sample Code Sample Date Ag-110m .j Ia3 03/23/88 45+/-13 (Camp-Coney) 06/15/88 53+/-11 08/09/88 56+/-12 10/18/88 77+/-14 Ia6 03/23/88 < MDL

, (Kenwood .

Beach 06/16/88 < MDL Control Location) 08/10/88 < MDL 10/18/88 < MDL

  • Naturally occurring K-40 was observed in all samples. All other gamma emitters not cited were < MDL; typical ~MDL's are given in Table B-9. l I

i

'i 33 wwhum_ _ ___ _ . _ - _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _

e January 1 - December 31, 1988 ,

Docket Nos. 50-317/318 TABLE B-4 CONCENTRATIONS OF GAMMA EMITTERS IN l l

SHORELINE SEDIMENT l (Results in Units of pCi/kg (Dry) +/- 2 Sigma) l Sample . Gamma 3 Sample Code Date Emitters l Wbl (Shore- 05/23/88  !

line Camp l Conoy) 12/19/88 1

.I l

  • Naturally occurring K-40 was observed in both samples. All other gamma emitters not cited were < MDL; typical MDL's are given in Table B-9.

l 1

i 34 "i

l L-__________-______________________

v . _ _ _ _ _ . _. __

. January 1 - W har 31, 1988 Docket Nos. 50-317/318 l

TABIE B-5 CONCENIPATIONS OF I-1~

AIR (ResultsinUnitsof10]1IN pCi/m +/- 2 Sigma) i I

Entrance Camp Bay Start Stop C. Conoy Coney M Breeze M Insby EOF

  • Date Date Site Al Site A2 Site A3 Site A4 Site A5

~

12/28/87 01/04/88 < 7.6 < 7.6 < 6.9 < 6.9 < 7.2 01/04/88 01/11/88 22+/-20** < 6.9 27+/-20** < 8.0 < 8.1 01/11/88 01/18/88 < 7.4 < 9.0 < 5.6 < 7.3 < 8.8-01/18/88 01/25/88 < 6.5

< 8.0 < 5.7 < 6.6 < 7.3 01/25/88 02/01/88 < 8.6 < 8.2 < 7.3 < 7.4 < 7.2 l

02/01/88 02/08/88 < 7.8 < 8.1 < 7.6 < 6.7 < 7.0 02/08/88 02/16/88 < 6.3 < 7.2 < 7.4 < 6.0 < 6.5 02/16/88 02/22/88 < 7.4 < 6.8 < 7.5 < 7.5 < 9.1 02/22/88 02/29/87 < 8.1 < 6.3 < 5.9 < 6.8 < 7.1 J 02/29/87 03/07/88 < 7.4 < 6.1 < 6.4 < 6.5 < 7.8 03/07/88 03/14/88 < 7.5 < 7.7 < 7.8 < 7.2 < 7.7 03/14/88 03/21/88 < 7.6 < 6.3 < 5.1 < 7.3 < 8.2 l

03/21/88- 03/28/88 < 7.7 < 7.7 < 7.7 < 7.2 < 7.7 l

03/28/88 04/04/88 < 7.6 < 7.6 < 7.6 < 7.1 < 8.0 4/04/88 04/11/88 < 8.5 < 8.6 < 7.5 < 6.7 < 7.4 04/11/88 04/18/88 < 9.2 < 7.0 < 8.1 < 7.0 < 8.5 04/18/88 04/25/88 < 7.0 < 7.2 < 7.7 < 6.8 < 7.1 04/25/88 05/02/88 < 6.4 < 6.7 < 8.1 < 6.7 < 7.1

. 05/02/88 05/09/88 < 7.0 < 6.5 < 7.4 < 6.3 < 7.1 05/09/88 05/16/88 < 6.6 < 7.0 < 7.9 < 6.4 < 7.3 05/16/88 05/23/88 < 8.2 < 7.4 < 7.2 < 6.4 < 6.6 05/23/88 05/31/88 < 5.7 < 5.9 < 6.0 < 5.2 < 5.5 05/31/88 06/06/88 < 7.8 < 7.9 < 8.4 < 7.2 < 5.5 06/06/88 06/13/88 < 6.4 < 6.7 < 7.3 < 6.4 < 6.2 06/13/88 06/20/88 < 6.3 < 6.7 < 7.0 < 6.5' < 6.2 06/20/88 06/27/88 < 6.5 < 6.6 < 6.9 < 6.1 < 6.3 06/27/88 07/05/88 < 5.8 < 5.7 < 5.9 < 5.2 < 5.6 07/05/88 07/11/88 < 8.5 < 7.4 '< 8.6 < 7.2 < 8.8 07/11/88 07/18/88 < 6.2 < 6.9 < 7.6 < 6.0 < 6.4 -

. 35

=

1

v -

January 1 - re der 31, 1988 .

Docket Nos. 50-317/318 TABE B-5 (CCNI'INUED)

CCHCENIRATIGIS OF I-1 AIR (Results in Units of 10 }lpCi/m

~

IN y+/- 2 Sigma)

Entrance Caup Bay Start Stop C. Conoy Conoy Ri Breeze Ri. Insby EOF

  • Date Date Site Al Site A2 Site A3 Site A4 Site A5 07/18/88 07/25/88 .
      • < 6.4 < 6.0 < 6.1 .< 6.3 07/25/88 08/01/88 < 8.0 < 6.0 < 6.8 _ < 5.8 < 5.9 08/01/88 08/08/88 < 6.0 < 6.2 < 6.3 < 5.9 < 6.1 08/08/88 08/15/88 < 5.9 < 6.2 < 6.4 < 5.8 . < 6.1 08/15/88 08/22/88 < 5.7 < 6.4 < 6.3 < 5.6 < 6.2 08/22/88 08/29/88 < 6.1 < 6.2 < 6.6 < 5.8 < 6.2 08/29/88 09/06/88 < 5.4 < 5.5 < 5.9 < 5.0 < 5.5 09/06/88 09/12/88 < 7.5 < 7.8 < 7.6 < 7.0 < 7.1 09/12/88 09/19/88 < 6.5 < 6.5 < 7.7 < 6.0 < 6.1 09/19/88 09/26/88 < 6.2 < 6.7 < 6.6 < 5.9 < 6.0 .

09/26/88 10/03/88 < 6.3 < 6.5 < 6.5 < 6.2 < 6.3 10/03/88 10/10/88 < 6.4 < 6.6 < 6.5 < 6.1 < 6.2 10/10/88 10/17/88 *** < 6.7 < 7.0 < 6.4 < 6.3 _

l 10/17/88 10/24/88 < 6.6 < 6.8 < 7.3 < 6.1 < 5.9 10/24/88 10/31/88 < 5.5 < 6.4 < 6.2 < 8.8 < 5.4 10/31/88 11/07/88 < 5.6 < 6.4 < 6.4 < 6.3 < 5.5 11/07/88 11/14/88 < 5.3 < 6.4 < 5.7 < 6.5 < 5.4 l 11/14/88 11/21/88 < 5.6 < 6.5 < 6.1 < 6.3 < 5.6 11/21/88 11/28/88 < 5.6 < 6.8 < 6.1 < 6.0 < 5.4 11/28/88 12/05/88 < 5.7 < 6.8 < 6.1 < 7.4 < 5.6 12/05/88 12/12/88 < 5.7 < 7.1 < 6.5 < 5.0 < 4.3 12/12/88 12/19/88 < 6.2 < 7.9 < 6.8 < 7.9- < 5.8 12/19/88 12/27/88 < 5.5 < 7.4 < 5.7 < 6.7 < 4.9 12/27/88 01/03/89 < 5.9 < 8.0 < 6.5 < 5.8 < 4.0 I

  • Control location.
    • Values close to the typical MDL values. ,
      • Air Sampler Malfunction.  !

I 36 t  :

-v

- January 1 - December 31, 1988 Ibcket Nos. 50-317/318

'IABIE B-6 CI21CENIPATIONS OF BE'IA Dur 1.xS IN AIR PARI'ICUIATES (Results in Units of 10 pCi/m3 +/- 2 Sigma) h Cang Bay Start Stop C. Coney Ccocy Ri Breeze Rd Insby EOF

  • Data Data Site Al Sita A2 Site A3 Site A4 Site A5 12/28/8 01/04/88 1.9+/-0.4 1.3+/-0.4 1.1+/-0.4 1.8+/-0.4 1.8+/-0.4 01/04/88 01/11/88 2. 6+/-0. 5 1.8+/-0.4 2.1+/-0.4 1.8+/-0.4 2.3+/-0.4 01/11/88 01/18/88 2.4+/-0.4 1. 8+/-0. 5 1.9+/-0.4 2.3+/-0.4 2.5+/-0.5  ;

01/18/88 01/25/88 1.7+/-0.4 1.5+/-0.4 1. 6+/-0. 4 1.6+/-0.4 1.7+/-0.4 01/25/88 02/01/88 2.9+/-0.5 2.5+/-0.5 2.1+/-0.4 2.3+/-0.4 2.6+/-0.4 02/01/88 02/08/88 2.3+/-0.5 2. 0+/-0. 5 1.9+/-0.4 2. 0+/-0. 4 2. 0+/-0. 4 02/08/88 02/16/88 1.3+/-0.4 1.1+/-0.4 1.1+/-0.4 1. 5+/ -0. 4 2.1+/-0.4 02/16/88 02/22/88 1.9+/-0.5 1. 5+/-0. 5 1.6+/-0.5 1.9+/-0.4 1.9+/-0.5 02/22/88 02/29/88 1.3+/-0.4 1.4+/-0.4 1.3+/-0.4 1.2+/-0.4 1.4+/-0.4 02/29/88 03/07/88 1.4+/-0.4 1.1+/-0.4 1. 0+/-0. 4 1.4+/-0.4 1.5+/-0.4 03/07/88 03/14/88 1.7+/-0.4 1.4+/-0.4 1. 5+/-0. 4 1.6+/-0.4 1.2+/-0.4 03/14/88 03/21/88 1.2+/-0.4 1. 0+/-0. 4 1.0&/-0.4 1.1+/-0.4 1.3+/-0.4 03/21/88 03/28/88 1,2+/-0.4 1.3+/-0.4 1.5+/-0.4 1.2+/-0.4 1.6+/-0.4 03/28/88 04/04/88 2.1+/-0.5 1.3+/-0.4 1.6+/-0.4 1.7+/-0.4 1.7+/-0.4 04/04/88 04/11/88 1.0+/-0.4 0.7+/-0.4 1. 0+/-0. 4 1.0+/-0.3 1.3+/-0.4 04/11/88 04/18/88 1.1+/-0.5 1. 0+/-0. 4 0.9+/-0.4 0.8+/-0.3 1. 0+/-0. 4 04/18/88 04/25/88 1.6+/-0.4 1.6+/-0.4 1.6+/-0.4 1.7+/-0.4 1.6+/-0.4 $

04/25/88 05/02/88 1. 0+/-0. 3 0.8+/-0.3 1.0+/-0.4 0.9+/-0.3 0.9+/-0.4 l 05/02/88 05/09/88 0.8+/-0.4 0.7+/-0.3 0.7+/-0.4 0.9+/-0.3 0.8+/-0.4 j 05/09/88 05/16/88 1.3+/-0.4 1.2+/-0.4 1.3+/-0.4 1.4+/-0.4 1.5+/-0.4 1 05/16/88 05/23/88 1. 3 +/-0. 4 1.1+/-0.4 1. 2+/-0. 4 1.1+/-0.3 1.0+/-0.4 j 05/23/88 05/31/69 1.1+/-0.3 1. 0+/ -0. 3 0.9+/-0.3 1.1+/-0.3 1.0+/-0.3 )

I 05/31/88 06/06/88 1.2+/-0.4 1.0+/-0.4 1.1+/-0.5 1.0+/-0.4 1.0+/-0.4 l 06/06/88 06/13/88 1.3+/-0.4 1.0+/-0.4 1.1+/-0.4 1.1+/-0.4 1.3+/-0.4  !

06/13/88 06/20/88 2.1+/-0.4 1.2+/-0.4 1.4+/-0.4 2.1+/-0.4 2.4+/-0.4  ;

06/20/88 06/27/88 1.8+/-0.4 1.3+/-0.4 1.4+/-0.4 1.9+/-0.4 1.6+/-0.4 '

06/27/88 07/05/88 1.0+/-0.3 1.1+/-0.3 1.1+/-0.3 1.1+/-0.3 0.9+/-0.3 07/05/88 07/11/88 1.1+/-0.5 1.5+/-0.4 1.3+/-0.5 2.1+/-0.4 2.2+/-0.5 07/11/88 07/18/88 0.7+/-0.3 0. 6+/-0. 4 0. 7+/-0. 4 1.3+/-0.4 2.6+/-0.4 l

- 37 1

_ _ _ _ _ _ _ . _ _ l

l I

January 1 - C+ M =r 31, 1988 .

Docket Nos. 50-317/318 TABIE B-6 (CONTINUED) )

CONCENIPATICNS OF BETA Dur txS IN AIR PARTICUIATES (Rasults in Units of 10~ pCi/m3+/- 2 Sigma)

Entrance Cany Bay Start Stop C. Canoy Canoy M Breeze M Insby EOF

  • Dnte Data Site Al Site A2 Site A3 Site A4 Site A5

~ -

07/18/88 07/25/88 ** 0.5+/-0.4 0.9+/-0.4 0.9+/-0.4 0.8+/-0.4 07/25/88 08/01/88 0.7+/-0.4 1.5+/-0.4 1.9/-0.4 2.0&/-0.4 2.0+/-0.4 08/01/88 08/08/88 1.4+/-0.4 1.1+/-0.4 0.8+/-0.4 1.4+/-0.4 1.0+/-0.4-08/08/8S 08/10/S8 1.1+/-0.4 1.1+/-0.4 0.9+/-0.4 1.0+/-0.3 1.3+/-0.4 08/15/88 08/22/88 1.8+/-0.4 1.7+/-0.4 1.1+/-0.4 1.7+/-0.3 1.9+/-0.4 j 08/22/88 08/29/88 1.9+/-0.4 1.4+/-0.4 2.0&/-0.4 2.2+/-0.4 2.4+/-0.4 08/29/88 09/06/88 0.5+/-0.3 0.9+/-0.3 1.4+/-0.4 1.1+/-0.3 1.7+/-0.4 09/05/88 09/12/88 2.2+/-0.5 2.2+/-0.5 2.2+/-0.5 2.4+/-0.5 2.5+/-0.5 09/12/88 09/19/88 1.9+/-0.4 2. 0&/-0. 4 2.7+/-0.5 2.0+/-0.4 2.3+/-0.4 ,

09/19/88 09/26/88 0. 9&/-0. 4 U.frb/-0.4 1.0+/-0.4 0.9+/-0.3 1.3+/-0.4 .

09/26/88 10/03/88 1.1+/-0.4 1.6+/-0.4 1.9F/-0.4 1.6+/-0.4 2.0+/-0.4 10/03/88 10/10/88 1.6+/-0.4 1.7+/-0.4 1.8+/-0.4 1.7+/-0.4 1.7+/-0.4 10/10/88 10/17/88 ** 2.1+/-0.4 2.2+/-0.4 2.0&/-0.4 2.5+/-0.4 l

10/17/88 10/24/GS i.8+/-0.4 2.2+/-0.4 1.9+/-0.4 1.5+/-0.4 2.2+/-0.4 10/24/88 10/31/88 2.3+/-0.4 2.8+/-0.4 2.5+/-0.4 2.3+/-0.4 2.8+/-0.4 10/31/88 11/07/88 1.7+/-0.4 1.9+/-0.4 2.0&/-0.4 2.2+/-0.4 2.0+/-0.4 11/07/88 11/14/88 1.2+/-0.4 1.8+/-0.4 1.5&/-0.4 1.7+/-0.4 1.5+/-0.4 11/14/88 11/21/88 1.9+/-0.4 2. 5+/-0. 4 2.4+/-0.4 2.5+/-0.4 2.0+/-0.4 11/21/88 11/28/88 1. 2+/-0. 4 1.7+/-0.5 1.6+/-0.4 1.9+/-0.4 1.5+/-0.4 31/28/88 12/05/88 2.1+/-0.4 2.6+/-0.4 2.3+/-0.4 2.7+/-0.4 2.2+/-0.3 12/05/88 12/12/88 2.1+/-0.4 2.6+/-0.4 2.7+/-0.4 2.6+/-0.4 2.3+/-0.4 12/12/88 12/19/88 2.1+/-0.4 3.0&/-0.5 2.5+/-0.5 2.6+/-0.5 2.2+/-0.4 12/19/87 12/27/88 2.5+/-0.4 3.0&/-0.5 2.9+/-0.4 3.3+/-0.5 1.7+/-0.3 12/27/88 01/03/88 2.9+/-0.4 3.5+/-0.5 3.3+/-0.4 4.2+/-0.5 3.4+/-0.4 l

  • Cantrol Irx:ation.
    • Air Sanpler Malfunction.

38 .

1

v

, January 1 - December 31,1988 Docket Nos. 50-317/318 TABLE B-7 CONCENTRATIONSOFGAMMAEMITjERSIN^3 -

(Results in Units of 10 pCi/m +/- 2 Sigma)

Sample GAMMA Sample Code Date EMITTERS 1/88

  • A1 (Entrance
  • Camp conoy) 2/88
  • 3/88
  • 4/88
  • 5/88
  • 6/88
  • 7/88
  • 8/88
  • 9/88
  • 10/88
  • 11/88 12/88 A2 1/88 *

(Camp Conoy 2/88

. Road Near .

3/88

  • Emergency 4/88
  • S/88 7/88 * )

8/88

  • I 9/88 10/88 11/88 12/88
  • A3 1/88 (Bay 2/88
  • Breeze Road) 3/88
  • 4/88
  • 5/88
  • I 6/88
  • j 7/88 8/88

'9/88

  • 10/88 q 11/88 12/88 39 ]

)

l January 1 - December 31, 1988 .

Docket Nos. 50-317/318 1

l TABLE B-7 (CONTINUED)

CONCENTRATIONSOFGAMMAEMIT}ERS*IgAIRPARTICULATES -

(Results in Units of 10 pCi/m +/- 2 Sigma)

Sample GAMMA 1 Sample Code Date EMITTERS A4 1/88 *

)

(Route 4 2/88

  • J Lusby) 3/88
  • 1 4/88
  • I '

5/'88 6/88 * .

7/88

  • 8/88
  • 9/88
  • 10/88
  • 11/88
  • 12/88 * ,

A5 1/88 *

(EOF) * *

  • 2/88 * ,

1 3/88

  • l 4/88
  • l 5/88 '*

6/88 .*

7/88

  • 8/88
  • 9/88
  • 10/88
  • 11/88
  • 12/88
  • i
  • Naturally occurring Be-7 and K-40 were observed in most samples. All other gamma emitters not cited were < MDL; typical MDL's are given in Table B-9.
    • Control location.

l  :

^

40

I

, January 1 - December 31, 1988 Docket Nos. 50-317/318 TABLE B-8 CONCENTRATIONS OF GAMMA EMITTERS

  • IN VEGETATION SAMPLES l (Results in Units of pCi/kg (Wet) +/- 2 Sigma) j i

Sample Code Date Sample Type Cs-137

--~~~~~~

Ib1 01/25/88 Brussel Sprouts < MDL (Bay 05/31/88 Cabbage 31+/-17 Breeze 06/27/88 Cabbage < MDL Road) 07/18/88 Cabbage < MDL 08/22/88 Cabbage < MDL 11/28/88 Brussel Sprouts < MDL 12/27/88 Caggabe < MDL l Ib2 05/31/88 Lettuce < MDL (Bay 06/27/88 Lettuce < MDL Breeze 07/18/88 Cauliflower < MDL Road) 08/22/88 Broccoli < MDL -

10/26/88 Broccoli < MDL $

11/28/88 Broccoli < MDL l 12/27/88 Brussel Sprouts < MDL Ib3 01/25/88 Collards < MDL (Bay 02/22/88 Collards < MDL Breeze 05/31/88 Collards < MDL Road) 06/27/88 Collards < MDL 07/18/88 Collards < MDL 08/22/88 Collards < MDL 09/29/88 Collards < MDL j 10/26/88 Collards < MDL (

11/28/88 Collards < MDL Ib4 01/25/88 Brussel Sprouts < MDL j (Before 05/31/88 Cabbage < MDL l

< MDL Entrance 06/27/88 Cabbage co Camp 07/18/88 Cabbage < MDL Conoy) 08/22/88 Cabbage < MDL 11/28/88 Brussel Sprouts < MDL 12/27/68 Cabbage < MDL Ib5 05/31/88 Lettuce < MDL (Before 06/27/88 Lettuce < MDL Entrance 07/18/88 Cauliflower < MDL to Camp 08/22/88 Broccoli < MDL Conoy) 10/26/88 Broccoli < MDL -

41

_ _ - - - - - _ _ _ _ J

  • l January 1'- December 31, 1988 ,

Docket Nos. 50-317/318 TABLE B-8 (CONTINUED)

CONCENTRATIONS OF GAMMA EMITTERS

  • IN VEGETATION SAMPLES (Results in Units of pCi/kg (Wet) +/- 2 Sigma)

Sample Code Date Sample Type Cs-137 j Ib5(Con- 11/28/88 Broccoli- < MDL tinued) 12/27/88 Brussel tiprouts < MDL ,

l Ib6 01/25/88 Collards < MDL i l

(Before 02/22/88 Collards < MDL j Entrance 05/31/88 Collards < MDL to Camp 06/27/88 Collards < MDL Conoy) 07/18/88 Collards < MDL l

i 08/22/88 Collards < MDL l l 09/29/88 Collards < MDL l i 10/26/88 Collards < MDL l 11/28/88 Collards < MDL 1 12/27/88 Collards < MDL l Ib7 01/25/88 Brussel Sprouts < MDL (EOF) *

  • 05/31/88 Cabbage < MDL i l 06/27/88 Cabbage < MDL .!

07/18/88 Cabbage < MDL 08/22/88 Cabbage < MDL 11/28/88 Brussel Sprouts < MDL 12/27/88 Cabbage < MDL Ib8 05/31/88 Lettuce < MDL l i (EOF)** 06/27/88 Lettuce < MDL l l

07/18/88 Cauliflower < MDL 08/22/88 Broccoli < MDL .

10/26/88 Broccoli < MDL 11/28/88 Broccoli < MDL l l 12/27/88 Brussel Sprouts < MDL Ib9 01/25/88 Collards < MDL (EOF)** 02/22/88 Collards < MDL 05/31/88 Collards < MDL 06/27/88 Collards < MDL 07/18/88 Collards < MDL 08/22/88 Collards < MDL 09/29/88 Collards < MDL ,

10/26/88 Collards < MDL i

^

42

l I

I

  • January 1 - December 31, 1989 Docket Nos. 50-317/318  :

TABLE B-8 (CONTINUED) ..

CONCENTRATIONS OF GAMMA EMITTERS

  • IN VEGETATION SAMPLES (Results in Units of pCi/kg.(Wet) +/- 2 Sigma)

Sample Code Date Sample Type, Cs-137 Ib9(Con- 11/28/88 Collards < MDL tinued) 12/27/88 Collards < MDL

  • Naturally occurring Be-7 and-K-40 were observed in most samples.

All other gamma emitters not cited were < MDL;' typical MDL's are given in Table B-9.

    • Control location.

q l

i s

43

January 1 - hwiber 31, 1988 .

Docket Nos. 50-317/318 TAB 2 B-9 TYPICAL MDL RAIGS PGt CMen SPIXRCEETRY Selected Bay Natar Fish Shellfish SarH mmnt Vegetation Midas pcl/l pci/kg pCi/)og pci/)ag pci/kg %10pci/mculaty Na-22 1.7-2.8 12 - 14 11 - 15 29 - 31 18 - 39 1.5 - 3.1 CW51 21 - 34 59 - 76 81 - 115 175-212 122-210 17 - 34 Mn-54 1.6-2.8 9 - 10 9 - 11 22 - 25 14 - 27 1.5 - 2.8 Co-58 2.0-2.8 9 - 11 9 - 15 24 - 30 13 - 30 1.7 - 3.4 Fe-59 4.8-7.2 27 - 33 28 - 32 50 - 55 31 - 67 4.6 - 8.9 00-60 1.8-2.7 14 - 18 13 - 15 29 - 31 21'- 40 1.2 - 2.8 Zn-65 3.2-5.2 25 - 31 22 - 33 52 - 52 41 - 72 2.9 - 7 .

Nb-95 2.5-4.2 10 - 13 11 - 18 29 - 36 16 - 30 2.4 - 4.5 Zr-95 3.5-5.2 16 - 18 17 - 23 38 - 60 25 - 49 3.0 - 6.0 RuRh-106 15 - 25 74 - 88 72 - 106 210-243 115-247 12 - 22 Ag-110m 1.6-2.4 7- 9 9 - 11 20 - 31 13 - 28 1.2 - 2.4

'14-129m 2.2-3.3 8 -9 9 - 12 20 - 24 11 - 23. 1.8 - 3.2 I-131 9 - 37 18 - 30 31 - 74 26 - 30 17 - 32

  • Cs-134 1.4-2.7 9 - 10 9 - 11 26 - 33 16 - 35 1.4 - 3.0 Cs-137 1.7-2.6 9 - 11 9 - 12 23 - 36 15 - 31 1.4 - 2.7 Ba-140 13 - 28 35 - 55 55 - 83 63 - 80 37 - 82 12 - 28 La-140 6 - 16 17 - 23 25 - 48 40 - 46 18 - 40 5.5 - 18 Ce-144 11 - 16 30 - 34 32 - 40 115-127 71 -144 6.1 - 10

-3 r I-131 measured on silver zeolita cartridge is 4.0x10 to 44

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

January 1 - December 31, 1988 Docket Nos. 50-317/318 TABLE B-10 LLD'S FOR GAMMA SPECTROMETRY Selected Bay Water Fish Shellfish Sediment Pargiculage Nuclides pCi/l pCi/kg pCi/kg pCi/kg 10~ pCi/m Na-22 1.4 15 15 29 l.4 Cr-51 12 112 112 209 10 Mn-54 1.4 20 20 28 1.9 Co-58 1.4 17 17 28 1.5 i

Fe-59 3.1 36 36 42 2.7 Co-60 1.5 18 18 27- 1.6

. Zn-65 2.6 38 38 48 '3 . 5 Nb-95 1.6 19 19 27 1.6 Zr-95 2.5 29 29 51 2.9 RuRh-106 15 150 150 272 17 Ag-110m 1.4 17 17 28 1.5 Te-129m 1.3 13 13 23 1.2 I-131 1.3 15 15 24 1.3*

Cs-134 1.7 19 19 35 1.5 Cs-137 1.7 29. 20 33 1.6 Ba-140 3.9 47 47 77 3.8 La-140 1.S 20 20 36 1.8 Ce-144 4.2 43 43 107 4.2 l

45

rv January 1 - December 31, 1988 ,

Docket Nos.- 50-3.1,7/318 1

Table B-10'(CONTINUED) l LLD'S FOR GAMMA SPECRTOMETRY Selected Precipitation Milk Vegetation Soil Well Water Nuclides pCi/1 pC1/1 pCi/kg pCi/kg pCi/1 Na 1.4 8.5 20 29 1.4 Cr-51' 12 71 163 209 12 Mn-54 1.4 8.9 19 28 1.4 Co-58 1.4 7.8 16 28 1.4 Fe-59 3.1 17 40 42 3.1 l

Co-60 1.5 8.9 21 27 1.5 1

Zn-65 2.6 15 43 48 2.6 ,

Nb-95 1. 6 ' 8.5 19 27 1.6 Zr-95 2.S 15 31 51' 2.5 RuRh-106 15 81 135 272 15 >

Ag-110m 1.4 8.5 16 28 1.4  ;

Te-129m 1.3 7.0 17 23 1.3 I-131 1.3 0.6 23 24 1.3 Cs-134 1.7 9.7 18 35 1.7 1

l l Cs-137 1.7 9.3 18 '33 1.7 i

Ba-140 3.9 22 56 77 3.9 La-140 2.2 8.2 23 36 1.8 Ce-144 8.0 43 8.0 107 4.2 l

  • The LLD for I- 1 measured on silver zeolite cartridge is 6.8x10-3 pCi/m 46

. January 1 - December 31, 1988 Docket Nos. 50-317/318 TABLE B-11 EXTERNAL RADIATION (Results in Units of mR/30 days +/- 2 , Sigma)

Location DR1 Jan. 4.10+/-0.56 Feb. 3.82+/-0.22 (On Site Mar. 3.87+/-0.08 Apr. 3.65+/-0.10 Along Cliffs,n May 3.62+/-0.22 Jun. 3.88+/-0.48 Jul. 3.72+/-0.44 Aug. 4.13+/-0.38

! Sep. 3.79+/-0.18 Oct. 3.82+/-0.22 Nov. 3.61+/-0.08 Dec. 3.87+/-0.06 Location dR2 Jan. 3.40+/-0.52 Feb. 3.13+/-0.10 (Route 765 Mar. 3.11+/-0.14 Apr. 2.98+/-0.12 Auto Dump) May 3.02+/-0.04 Jun. 3.12+/-0.44 Jul. 3.58+/-0.14 Aug. 3.22+/-0.44 Sep. 2.69+/-0.06 Oct. 3.11+/-0.50 Nov. 2.94+/-0.12 Dec. 3.07+/-0.26 Location DR3 Jan. 3.45+/-0.62 Feb. 3.32+/-0.04 (Route 765 Mar. 3.11+/-0.12 Apr. 3.15+/-0.46

. Giovanni's May 3.06+/-0.30 Jun. 3.01+/-0.26 Tavern) Jul. 3.02+/-1.10 Aug. 3.07+/-0.08 Sep. 3.01+/-0.06 Oct. 3.27+/-0.68 Nov. 3.15+/-0.74 Dec. 3.09+/-0.02 Location DR4 Jan. 4.01+/-0.60 Feb. 4.03+/-0.02 (Route 765 Mar. 3.78+/-0.40 Apr. 3.50+/-0.16 Across From May 3.57+/-0.22 Jun. 3.71+/-0.40 White Sands Jul. 3.59+/-0.24 Aug. 3.59+/-0.22 Sign) Sep. 3.73+/-0.28 Oct. 3.56+/-0.12 Nov. 3.70+/-0.18 Dec. 3.54+/-0.08 Location DR5 Jan. 3.48+/-0.56 Feb. 3.62+/-0.22 (Route 4 Mar.

  • Apr. 3.38+/-0.14 John's Creek) May 3.48+/-0.30 Jun. 3.51+/-0.18 Jul- 3.43+/-0.32 Aug. 3.48+/-0.42 Sep. 3.45+/-0.22 Oct. 3.49+/-0.42 Nov. 3.46+/-0.48 Dec. 3.46+/-0.34 Location DR6 Jan. 3.04+/-0.32 Feb. 3.00+/-0.14 l (Route 4 Mar. 2.97+/-0.14 Apr. 2.85+/-0.12 l Lusby) May 2.90+/-0.22 Jun. 2.88+/-0.14 Jul. 2.83+/-0.32 Aug. 2.75+/-0.38 .

i Sep. 2.77+/-0.12 Oct. 2,77+/-0.22 Nov. 3.0l+/-0.18 Dec. 2.31+/-0.40 47 l

January 1 - December 31, 1988 .

Docket Nos. 50-317/318 TABLS B (CONTINUED)

EXTERNAL RADIATION (Results in Units of mR/30 days +/- 2 Sigma)

Location DR7 Jan. 3.21+/-0.38 Feb. 3.23+/-0.14 (Plant Site Mar. 3.23+/-0.34 Apr. 2.89+/-0.16 Garden) May 3.01+/-0.10 Jun. 3.00+/-0.02 Jul. 2.87+/-0.30 Aug. 3.13+/-0.22 Sep. 2.93+/-0.38 Oct. 2.83+/-Os34 .

3.05+/-0.36 3.02+/-0.18 l Nov. Dec.

Location DR8 Jan. 4.15+/-0.32 Feb. *

(Camp Conoy Mar. 4.42+/-0.42 Apr. 4.16+/-0.10 Road At May 4.10+/-0.50 Jun. 4.20+/-0.26 Emergency Jul. 4.21+/-0.62 Aug. 4.28+/-0.28 Siren) Sep. 3.82+/-0.10 Oct. '4.33+/-0.12 Nov. 4.24+/-0.28 Dec. 4.15+/-0.32 Location DR9 Jan. 3.44+/-0.34 Feb. 3.38+/-0.26 (Bay Breeze Mar. 3.58+/-0.76 .Apr. 3.25+/-0.12 Road). .May 3.22+/-0.24 Jun. 3.66+/-0.26 .

Jul. 3.31+/-0.28 Aug. 3.36+/-0.10 Sep. 3.41+/-0.70 Oct. 3.42+/-0.14 Nov. 3.28+/-0.50 Dec. . 3.30+/-0.32-l Location DR10 Jan. 3.10+/-0.16 Feb. 3.11+/-0.02 (Calvert Beach Mar. 3.51+/-0.56 Apr. 3.06+/-0.28 Road And Decatur May 3.13+/-0.38 Jun. 3.09+/-0.12 Street) Jul. 2.97+/-0.42 .Aug. 3.10+/-0.22 Sep. 3.06+/-0.14 Oct. 3.24+/-0.36 Nov. 3.17+/-0.52 Dec. 3.19+/-0 14 Location DR11 Jan. 3.15+/-0.20 Feb. 3.35+/-0.28 (Dirt Road off Mar. 3.52+/-0.44 Apr. 3.12+/-0.14 H Mackall & May 3.24+/-0.04 Jun. 3.26+/-0.26  !

Parran Roads) Jul. 3.20+/-0.12 Aug.- 3.27+/-0.26 '

Sep. 3.18+/-0.20 Oct. 3.19+/-0.18 Nov. 3.32+/-0.20 Dec. 3.27+/-0.20 l Location DR12 Jan. 3.23+/-0.04 Feb. 2.99+/-0.16  !

l (Mackall & Mar. 3.43+/-0.60 Apr. 2.94+/-0.26 l Bowen Roads) May 2.98+/-0.22 Jun. 3.05+/-0.22 Jul. 3.20+/-0.12 Aug. 3. 03 +/-0.16 -

Sep. 3.09+/-0.18 Oct. 2.98+/-0.44 ,

Nov. 3.26+/-0.04 Dec. 3.06+/-0.16 48

. January 1 - December 31, 1988 Docket Nop. 50-317/318 TABLE B-11 (CONTINUED)

EXTERNAL RADIATION (Results in Units of mR/30 days +/- 2 Sigma)

Location DR13 Jan. 3.34+/-0.28 Feb. 3.30+/-0.16 (Mackall Road Mar. 3.41+/-0.20 Apr. 3.18+/-0.30 Near Wallville) May 3.32+/-0.30- Jun. 3 17+/-0.28 Jul. 3.25+/-0.20 Aug. 3.30+/-0.44 Sep. 3.29+/-0.24 oct. 3.26+/-0.14

)

Nov. 3.22+/-0.14 Dec. 3.24+/-0.22 Location DR14 Jan. 3.72+/-0.40 Feb. 3.70+/-0.16 (Rodney Point) Mar. 3.77+/-0.48 Apr. 3.67+/-0.20 May 3.74+/-0.26 Jun.- 3.65+/-0.14 Jul. 3.84+/-0.28 Aug. 3.79+/-0.30 Sep. 3.73+/-0.38 oct. 3.66+/-0.16 Nov. 3.80+/-0.20 Dec. 3.78+/-0.42 Location DR15 Jan. 3.71+/-0.32 Feb. 3.47+/-0.14 (Mill Bridge Mar. 3.68+/-0.26 Apr. 3.41+/-0.08

. & Turner Roads) May 3.57+/-0.36 Jun. 3.48+/-0.18 Jul. 3.45+/-0.46 Aug. 3.59+/-0.34 Sep. 3.55+/-0.18 oct. 3.56+/-0.18 Nov. 3.52+/-0.12 Dec. 3.44+/-0.10 Location DR16 Jan. 3.48+/-0.44 Feb. 3.34+/-0.04 (Across From Mar. 3.29+/-0.06 Apr. 3.24+/-0.32.

Appeal School) May 3.55+/-0.06 Jun. 3.34+/-0.14 Jul. 3.28+/-0.52 Aug. 3.31+/-0.24 Sep. 3.22+/-0.14 oct. 3.49+/-0.34 Nov. 3.53+/-0.30 Dec. 3.37+/-0.16 Location DR17 Jan. 3.29+/-0.14 Feb. 3.55+/-0.12 (Cove Point & Mar. 3.54+/-0.20 Apr. 3.39+/-0.22 Little Cove May 3.58+/-0.46 Jun. 3.33+/-0.04 Point Roads) Jul. 3.40+/-0.20 Aug. 3.39+/-0.20 Sep. 3.41+/-0.14 oct. 3.48+/-0.24 Nov. 3.44+/-0.20 Dec. 3.39+/-0.24 Location DR18 Jan. 3.02+/-0.28 Feb. 3.0l+/-0.30 (Cove Point) Mar. 3.10+, 0.54 Apr. 2.81+/-0.18 May 2.90+/-0.30 Jun. 2.77+/-0.10 Jul. 2.77+/-0.18 Aug. 2.85+/-0.36 Sep. 2.70+/-0.20 oct. 2.78+/-0.28 Nov. 2.82+/-0.10 Dec. 2.83+/-0.28 49

_ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ = _

January 1 - December 31', 1988 .

Docket Nos. 50-317/318

. _\ _

TABLE B-11 (CONTINUED)

EXTERNAL RADIATION (Results in Units of mR/30 days +/- 2 Sigma)- ,

Location DR19 Jan. 3.15+/-0.06 Feb. 3.17+/-0.14 (Long Beach) Mar. 3.30+/-0.24 Apr. 2.89+/-0.48 May 3.10+/-0.34 Jun.- 2.92+/-0.26 Jul. 2.95+/-0.18 Aug. 3.01+/-0.18 Sep. 2.74+/-0.38 Oct. 2.95+/-0.24 Nov.- 3.07+/-0.78 Dec. 3.06+/-0.34 Location DR20 Jan. 4.04+/-0.28 Feb. 3.83+/-0.52 (On Site Near Mar. . 4.07+/-0.26 -Apr. 3.55+/-0.36 Shore) -May. 3.90+/-0.54 Jun. 4.09+/-0.18 Jul. 34 72+/-0.28 Aug. 3.97+/-0.36 Sep. 3.82+/-0.42 Oct. 3.78+/-0.26 Nov. 3.66+/-0.16 Dec. 3.83+/-0.08 Location DR21 Jan. 3.66+/-0.46 Feb. 3 66+/-0.16 (Emergency Mar. 3.71+/-0.58 Apr.- 3.58+/-0.24 .

Offsite Facility May 3.75+/-0.04 Jun. 3.70+/~0.32 Facility (EOF))** Jul. 3.74+/-0.14 .Aug. 3.79+/-0.52 Sep. 3.62+/-0.04 .Oct. .3.68+/-0.14 .

Nov. 3.73+/-0.02 Dec.. 3.88+/-0.34 Location DR22 Jan. 2.78+/-0.22 Feb. 2.99+/-0.38 (Solomons Mar. 3.16+/-0.36 Apr. -2.82+/-0.06 Island)** May 2.91+/-0.18 Jun. 2.76+/-0.18 Jul. 2.84+/-0.32 Aug. 2.77+/-0.18 Sep. 2.74+/-0.04 Oct. 2.74+/-0.18 Nov. 2.84+/-0.04 Dec. 2.91+/-0.34 Location DR23 Jan. 3.97+/-0.42 Feb.' 4.02+/-0.24 (Taylors- Mar. 4.36+/-0.30 Apr. 3.94+/-0.34 Island)** May 3.96+/-0.30 Jun. 4.24+/-0.50 Jul. 4.42+/-0.24 Aug. 4.35+/-0.22 Sep. 4.44+/-0.44 Oct. . '4.03+/-0.26 Nov. 4.14+/-0.68 Dec. 4.31+/-0.52

  • TLD. missing.
    • Considered control location (distance frc, release point greater than 8 km).

9 50

...v i i

-l January 1.,- December 31, 1988 Docket Nos. 50-317/318 )

1

(

, ;l

[

APPENDIX C 1

j Appendix C contains Table C-1 which is a compilation of the results I of BG&E laboratory's participation _in the Environmental-Protection l Agency's Cross-Check Program during the _ period January .1, 1988 to December 31, 1988. It also contains Table C-2 and Table C-3 which together form a compilation of the results of BG&E laboratory's participation in a Quality Assurance program setup with Teledyne Isotopes _ Company during the same period.. The Teledyne operating procedures are described in reference 30.

l L

4 51 o

9 9

e 0

0 0

52

  • January 1 - D h2 31, 1988 Docket Nos. 50-317/318 ,

k

/

TABI.E C-1 RESULTS OF EPA CROSS GECK PROGRAM FOR 1988 Sanple Sanple Type Isotope laboratory's EPA's-Data and Units nhamW Results Results 02/05/88 Water-pCi/L Cb-60 78+/-8 69+/-10 ,

Zn-65 105+/-16 94+/-19

  • j Ru-106 138+/-48 10 9/-21 Cs-134 74+/-8 64+/-10 Cs-137 111+/-9. 94+/-10 02/12/88 Water-pCi/L H-3 3058+/-306 3327+/-362 02/26/88 Milk-pCi/L I-131 6. M/-2.1 4.0+/-0.8

. 04/08/88 Water-pCi/L I-131 12+/-3 7.5+/-l.5 03/25/88 Filtar-pci/ filter Beta 64+/-7 50+/-10 Cs-137 18+/-2 16+/-10 04/23/88 Watar-pCi/L 00-60 58+/-7 50/-10 Cs-134 14+/-5 7+/-10 ',

Cs-137 11+/-4 7+/-10 06/03/88 Water-pC1/L Cr-51 285+/-70 302+/-60 00-60 17+/-4 15+/-10 i Zn-65 106+/-13 101+/-20 ]

Ru-106 201+/-39 199/-40 Cs-134 22+/-5 20+/-10 Cs-137 26+/-5 25+/-10 i

)

06/10/88 Water pC1/L H-3 5287+/-529 5565+/-1114 i l

l 06/24/88 Milk-pCi/L I-131 88+/-8 94+/-18 Cs-137 53+/-10 51+/-10 08/07/87 Water-pCi/L I-131 76+/-4 76+/-16 l 08/28/87 Filter pCi/ filter Beta 36+/-4 29+/-10 Cs-137 17+/-2 12+/-10

. 53 0

January 1 - M -J-2 31, 1988 .

Docket Nos. 50-317/318 I

J TABIE C-1 (CWIINUED)

RESULTS OF EPA CROSS Q{ECK PROGRAM FtR 1988 Sanple Sac 1ple 'lype Isotope h etcry's EPA's Date and Units Observed Results Results 10/07/88 Water-pci/L Cr-51 238+/-27 251+/-50 Co-60 " M/-3 25+/-10 Zn-65 1..v./-8 151+/-30 Ru-106 173+/-21 152+/-30 Cs-134 24+/-3 25+/-10 Cs-137 16+/-2 15+/-10 ,

1 10/14/88 Water-pC3/L H-3 2047+/-205 2316+/-700 10/18/88 Water-pCi/L C2-134 15+/-4 15+/-10 Cs-137 16+/-3 15+/-10 ,

10/28/88 Milk-pCi/L I-131 91+/-5 91+/-18.

Cs-137 53+/-5 50+/-10 .

12/09/88' Water-pCi/L I-131 110+/-5 115+/-24 i

)

1

c v

. January 1 - N 31, 1988 .

Docket Nos. 50-317/318 )

'Da[E C-2 RESUI25 0F QUALITY ASSURANCE PIOGRAM FtR 1988 l

Sample Type Sample Type of Original Replicata Split

  • And Iocation Data Analysis Analysis Analysis Analysis 10-2 pegj,3 Beta 2.9+/-0.5 2.9+/-0.5 **

Air Filtar-Al 01/25/88 **

Air Filtar-A2 01/25/88 Beta 2. 5&/-0. 5 .. 2.3+/-0.5 Air Filtar-A3 01/25/88 Beta 2.1+/-0.4 2.2+/-0.4-i Air Filtar-A4 01/25/88 Beta 2.3+/-0.4 2.4+/-0.4 Air Filtar-A5 01/25/88 Beta 2.6+/-0.4 2.9+/-0.4_

Air Iodine-Al 01/25/88 I-131 < 0.8 < 0.9 **

Air Iodine-A2 01/25/88 I-131 < 0.8 < 0.8 **-

J pci/L f

. Bay Water-Ma2 01/15/88 Canma < MDE, < MDL < MEL '

10-2 peij,3 Air Filtar-Al 02/22/88 Beta 1.3+/-0.4- 1.5+/-0.4 **.

Air Filtar-A2 02/22/88 Beta. 1.4+/-0.4 1.3+/-0.4 ** i Air Filtar-A3 02/22/88 Beta 1.3+/-0.4 1.5+/-0.4 **

Air Filtar-A4 02/22/88 Beta 1.2+/-0.4 1.1+/-0.3. ** i Air Filtar-A5 02/22/88 Beta 1.4+/-0.4 1.8+/-0.4 **

Air Iodine-A3 02/22/88 I-131 < 0.6 < 0.6 **

Air Iodine-A4 02/22/88 I-131 < 0.7 - < 0.5 **

Beta 1.2+/-0.4 1.1+/-0.4 **

Air Filtar-Al 03/21/88 Air Filtar-A2 03/21/88 Beta 1.3+/-0.4 l.2+/-0.4 ** ,

Air Filtar-A3 03/21/88 Beta 1.5+/-0.4 1.5+/-0.4 ** l Air Filtar-A4 03/21/88 Beta 1.2+/-0.4 1.1+/-0.4 _

Air Filtar-A5 03/21/88 Beta 1.6+/-0.4 1.7+/-0.4 **

Air Iodine-Al 03/21/88 I-131 < 0.8 < 0.8 '**~

Air Iodine-A5 03/21/88 I-131 < 0.8 < 0.8 **

M  :

Oystar-Ia6 03/23/88 Gasma < MDL < MDL L ' < MEL 55 1

January 1 - new, amber 31, 1988 .

Docket Nos. 50-317/318 TABI.E C-2 (CCNTINUED)

RESULTS OF QUALITY ASSURANCE PROGRAM KR 1988 Sagle Type Sagle Type of Original Replicate Split

  • And Iccation Data Analysis Analysis Analysis Analysis 10-2 peij,3 Beta **

Air Filtar-Al 04/25/88 1.0+/-0.3 1. 0+/-0. 3 Air Filtar-A2 04/25/88 Beta 0.8+/-0.3 0.9+/-0.3 **

Air Filtar-A3 04/25/88 Beta 1. 0+/-0. 4 0.8+/-0.4 **

Air Filtar-A4 04/25/88 Beta 0.9+/-0.3 0.8+/-0.3 **

Air Filter-A5 04/25/88 Beta 0.9+/-0.4 1.0&/-0.4 **

Air Iodine-Al 04/25/88 I-131 < 0.6 < 0.6 **

Air Iodine-A5 04/25/88 I-131 < 0.7 < 0.7 **

PCi/L Bay Water-Wal 04/15/88 Gama < MDL < MDL < MDL ,

10-2 pC1/m3 Air Filtar-Al 05/23/88 Beta 1.1+/-0.3 1.3+/-0.3 **

Air Filtal-A2 05/23/88 Beta 1.0&/-0.3 0.8+/-0.3 **

Air F11ter-A3 05/23/88 Beta 0.M/-0.3 1. 0+/-0. 3 **

Air Filtar-A4 05/23/88 Beta 1.1+/-0.3 1.2+/-0.3 **

Air Filtar-A5 05/23/88 Beta 1.0+/-0.3 1.1+/-0.3 **

Air Iodine-A2 05/23/88 I-131 < 0.6 < 0.6 **

Air Iodine-A3 05/23/88 I-131 < 0.6 < 0.6 **

pCi/L Bay WaterWa2 05/15/88 Tritium < 156 < 155 190+/-110 pCi/kg Shoreline-Wbl 05/23/88 Gama < MDL < MDL < MDL 10 -2 peij,3 Air Filter-Al 06/20/88 Beta 1.8+/-0.4 1.7+/-0.4 **

Air Filter-A2 06/20/88 Beta 1.3+/-0.4 1.1+/-0.4 **

56

. January 1 - nananhar 31, 1988 Docket Nos. 50-317/318 TMEE C-2 (CCNTINUED)

RESULTS OF QUAIZIY ASSURANCE PROGRAM FOR 1988 Sanple Type Sanple Type of. Original Replicata Split

  • And location Data Analysis Analysis- Analysis Analysis.

10

-2 peij,3 j Beta **

Air Filtar-A3 06/20/88 1.4+/-0.4 1. 5+/-0. 4 Air Filtar-A4 06/20/88 Beta 1.9+/-0.4 1.9+/-0.4 Air Filtar-A5 06/20/88 Beta 1.6+/-0.4- 1.5+/-0.4 I-131 < 0.6 **

Air Iodine-A4 06/20/88 < 0.6 Air Iodine-A5 06/20/88 I-131 < 0.6 < 0.6 ** f Air Filters-Al 06/15/88 Gamma < MDL < MDL < MDL Air Filters-A2 06/15/88 Gama < MDL . < MDL < MDL Air Filters-A3 06/15/88- c.a-na '< MDL < MDL < MDL Air Filters-A4 06/15/88 ca nna  : < MDL < MDL < MDL

- Air Filters-A5 06/15/87 Ganna < MDL < MDL < MDL' pC1/kg Bluefish-Ial 07/19/88 Gama Cs-137 10+/-7 < MDL < MDL 10-2 peij,3 Air Filtar-Al 07/25/88 Beta 0.7+/-0.4 0.6+/-0.4 **

Air Filtar-A2 07/25/88 Beta 1. 5+/-0. 4 1.6+/-0.4 4*

Air Filtar-A3 07/25/88 Beta 1.6+/-0.4 1.7+/-0.4 **

Air Filtar-A4 07/25/88 Beta 2. M/-0. 4 2.2+/-0.4 **

Air Filter-A5 07/25/88 Beta 2.0+/-0.4 2.0+/-0.4 **

Air Iodine-Al 07/25/88 I-131 < 0.8 < 0.8 **

Air Iodine-A2 I-131 < 0.6 < 0.6 **

07/25/88 pCi/L Bay Water-Wa2 07/15/88 canna < MDL < MDL < MDL

-2 10 peij, Air Filtar-Al 08/22/88 Beta 1.9+/-0.4 1.6+/-0.4 **

Air Filtar-A2 08/22/88 Beta 1.4+/-0.4 1.2+/-0.4 **

Air Filtar-A3 08/22/88 Beta 2. 0+/-0. 4 1.9+/-0.4 **

Air Filtar-A4 08/22/88 Beta 2.2+/-0.4 2.1+/-0.4 **

57 0

January 1 - nananhar 31, 1988 .

Docket Nos. 50-317/318- 1

)

TAB 2 C-2 (CCNIINUED)

RESULTS OF QUALITY ASSURANCE PROGRAM FCR 1988 l

. Sample Type Sanple Type of Original Replicata Split

  • And Incation Data Analysis Analysis Analysis Analysis

-2 l 10 pegj,3 Air Filtar-A5 Beta ** l 08/22/88 2.4+/-0.4 2.2+/-0.4.

Air Iodine-A3 I-131 < 0.7 < 0.6 **

08/22/88 Air Iodine-A4 08/22/88 I-131 < 0.6 < 0.6- **

pC1/kg Vegetation-Ibl 08/22/88 Gansna Cs-137 < MDL < MDL . 13+/ Vegetation-Ib3 08/22/88 Gamma Cs-137 < MDL < MDL 20+/-12 . , ,

Vegetation-Ib4 08/22/88 canna < MDL < MDL < MDL Vegetation-Ib6 08/22/88 Gansna < MDL < MDL < MDL Vegetation-Ib8 08/22/88 Gansna < MDL < MDL < MDL .

Vegetation-Ib9 08/22/88 canna < MDL < MDL < MDL PCi/kU Oysters-Ia6 08/10/88 c. anna < MDL ; < MDL

< MDL 10-2 peij,3 Air Filtar-Al 09/26/88 Beta 1.1+/-0.4 -1.4+/-0.4 **

Air Filtar-A2 09/26/88 Beta 1.6+/-0.4 1.6+/-0.4 **

Air Filtar-A3 09/26/88 Beta 1. 9+/-0. 4 1.9+/-0.4 **

Air Filter-A4 09/26/88 Beta 1. 6+/-0. 4 - 2.3+/-0.4 **

Air Filter-A5 09/26/88 Beta 2. 0+/-0. 4 1.9+/-0.4 **

Air Iodine-Al 09/26/88 I-131 < 0.6 < 0.6 **

Air Iodine-A5 09/26/88 I-131 < 0.6 < 0.6 **

10-2 pegj,3 Air Filtar-Al 10/24/88 Beta 2.3+/-0.4 2.0+/-0.3' **

Air Filta&A2 10/24/88 Beta 2.8+/-0.4 2.9+/-0.4 **

A!: Filtar-A3 10/24/88 Beta 2. .H-/-0. 4 2.6+/-0.4 ** -

Air Filtar-A4 10/24/88 Beta 2.3+/-0.4 2.4+/-0.4 **

Beta 2.8+/-0.4 2.8+/-0.4 **

Air Filtar-A5 10/24/88 58

.v 1 i

a January 1 - C+ 2+r 31, 1988 )

Docket Nos. 50-317/318 j j

TABIE C-2 (CIN1'INUED)

RESULTS OF QUALTIY ASSURANCE PROGRAM FOR 1988 Sagle Type Sagle Type of original Replicata Split

  • Ard Ircation Data Analysis Analysis Analysis Analysis 10-2 pegf ,3 I

Air Iodine-A2 10/24/88 I-131 < 0.6 < 0.6 **

I-131 **

Air Iodine-A3 10/24/88 < 0.6 < 0.6 1

pCi/L  !

Bay Water-Wal 10/15/88 cama < MDL < MDL < MDL

]'

-2 3 10 pCi/m Beta 2.3+/-0.4 **

1.2+/-0.4 Air Filter-Al 11/21/88 Air Filtar-A2 11/21/88 Beta 1.7+/-0.4 3.M/-0 4 **

- Air Filtar-A3 11/21/88 Beta 1.6+/-0.4 2.9/-0.4 **

Air Filtar-A4 11/21/88 Beta 1.9+/-0.4 2.9+/-0.4 **

Air Filtar-A5 11/21/88 Beta 1.M/-0.4 2.7+/-0.4 ** )

a I Air Iodine-A4 11/21/88 I-131 < 0.6 < 0.6 **

Air Iodine-A5 11/21/88 I-131 < 0.5 < 0.6 **

PCi/L Bay Wa' s 11/15/88 Tritium < 160 < 164 xxx+/-xx PC1/kg Vegetation-Ibl 11/28/88 Gamma Co-60 < MDL 19+/-11 < MDL Vegetation-Ib3 11/28/88 Gamma < MDL < MDL < MDL Vegetation-Ib4 11/28/88 Gamma < MDL < MDL < MDL ,

Vegetation-Ib6 11/28/88 Gamma < MDL < MDL < MDL Vegetation-Ib7 11/28/88 Gamma < MDL < MDL < MDL  !

Vegetation-Ib8 11/28/88 Gamma < MDL < MDL < MDL .

10-2 pCi/m3 Air Filter-Al 12/27/88 Beta 2.9+/-0.4 2.9+/-0.4 **

Sir Filter-A2 12/27/88 Beta 3.5+/-0.5 3.9+/-0.5 **

Air Filtar-A3 12/27/88 Beta 3.3+/-0.4 3.4+/-0.4 **

Air Filter-A4 12/27/88 Beta 4.2+/-0.5 4.6+/-0.5 **

Air Filter-A5 12/27/88 Beta 3.4+/-0.4 3.8+/-0.4 **

59 l*

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

O January 1 - nar'amhar 31, 15 .

Docket Nos. 50-317/318 I

1 4

TABT.E C-2 (CCNTINUED)

RESULTS OF QUALITY ASSURANCE PROGRAM FIR 1988 ]

Sanple Type Sanple Type of. Original Replicata Split

  • And Iconticn Data Analysis Analysis ~ Analysis Analysis 10-2 pCi/m3 Air Iodine-Al 12/27/8P I-131 < 0.6 < 0.6 **

Air Iodine-A2 12/27/63 I-131 < 0.8 < 0.8 **

Air Filtar-Al 12/15/88 Ganna < MDL < MDL < MDL Air Filtar-A2 12/15/88 canna < MDL '< MDL < MDL

. Air Filter-A3 12/15/88 Ganna < MDL < MDL . < MDL Air Filtar-A4 12/15/88 Ganna < MDL < MDL < MDL Air Filtar-A5 12/15/88 Gamma < MDL < MDL < MDL

  • Samples split with Teledyne Isotopes, Westwood,New Jersey. On the following ,

page is a list of their typical MDU s.

    • 'Iha nature of these sanple precluded splitting them with hledyns Isotopes.

l

~

60 a

e

l* Jarmary 1 - narwnhar 31,.1988 Docket Nos. 50-317,318 TMEZ C-3 Tmzma: ISMOPES' TMCE MDUS KR GMR SPECIDEN l

selected Bay Water Fish Sha11 fish, Sad 4% Vegetation Partgcutlaty Nuclides pCi/1 pCi/kg pCi/kg pCi/kg pCi/kg 10 pCi/m Na-22 - -

Cr-51 - - - - - -

Mh-54 4.0 10 20 10 7 4.0 0o-58 6.0 20 80 30 9 6.0 Fe-59 20 60 40 50 30 30 00-60 3.0 20 20 9 9 3.0 Zn-65 8.0 30 50 20 20 9.0 Nb-95 - - - - - -

l

  • Zr-95 7.0 20 80 .20 10 7.0 RuRh-106 40 100 200 90 60 30 l

l Ag-110m - - - - - -

l l w 129m -- - -- -- --

I-131 200 1000 --

600 100 700 Cs-134 4.0 20 20 10 8 3.0 Cs-137 4.0 10 20 10 8 3.0 Ba-140 10 200 10 600 40 500 La-140 - - - - - -

Ce-144 40 100 20 80 60 20-l 61

________.._____m.___..____._

y - -. --

e a

GP l

. .\

l 62

. l ,

9 e

. January 1'- December 31, 1988-Docket Nos. 50-317/318 Appendix D Appendix D contains the results of a Land Use Survey conducted around Calvert . Cliffs Nuclear Power Plant during the growing season of 1988. A table listing the raw data of this survey and a discussion of the results are included in this appendix.

I l

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  • l I

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0 63

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64

1 1

1*  :

  • January 1 - December'31, 1988 Docket Nos. 50-317/318 TABLE D-1 ,

I IAND USE SURVElf l

. Distance From The Plant (km) .

Sector Dairy Cows Residence Garden ,

, SE - 2. 2 - -

l SSE -

2.7. 6.0 )

S - 2.7 3.5 l 2

l SSW 4.8 2.7 <

2.7 GW -

2 .1' 2.5 WSW -

1.9 1.9 W -

2.2- 3.2 WNW -- 2.5 6.2 NW - 3.2 3. 3 '

i, piscussion

. A Land Use Survey was conducted'during the growing season of the I year 1988 to identify, within a distance.of 8 km, the location of the nearest milk animal,2 the nearest residence, and the nearest-garden greater than 50 m in each;of the'nine sectors over land.-

A detailed description of . the Land ' ; Use Survey is given in a separate document (38). The position of the nearest dairy ecW, l residence, and garden in each sector- up to 8 km are given in the above table.

The closest residence and garden are situated in the WSW sector, which is one of the least prevalent wind directions. In the S, SSE, and SE sectors there . is the- highest : probability ~ of wind blowing from the direction of the plant. :The two. gardens.used for vegetable samples by the Radiological Environmental Program have been placed in the: sectors. with the highest X/Q. One sampling garden is located in the.S sector.at.a distance of 0.7 km, and another is situated near the _. site boundary - between the SSE and SE sectors at a distance of 2.6 km.from'the plant. These two sampling sites are considered good indicator ' locations for radioactive depositions around . the _ plant. .The only milk cow within a distance of 8 km from the plant is situated in the SSW ~

sector, at 4.8 km from.the release point. This sector is closely monitored by two TLD's.(DR6 and DR15) and by an air. sampler (A4).

Consideration . is being given to the feasibility of performing

, additional environmental monitoring for. the grass-milk pathway.

The dose assessment using 1988 meteorological data was performed, and no significant impact from the operation of the plant was-found.

65

d

^ IJALTIMORE GAS AND ELECTRIC 1000 BRANDON SHORES ROAD e BALTIMORE, MARYLAND 21226 (301) 787-5000 FOSSIL E"aGINEERING SERVICES JEPARTMENT March 30, 1989 TM Regional Administrator Region 1, U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Centlemen:

Subj ect: Calvert Cliffs Nuclear Power Plant, Units 1 & 2 Operating License Nos. DPR-53 and DPR-69 Radiological Environmental Monitoring Program Annual Report, Technical Specifications:

Appendix A, Sections 3/4.12 and 6.9.1.7 In compliance with Sections 3/4.12 and 6.9.1.7 of the Calvert Cliffs Technical Specifications, are submitting the Annual Radiological Environmental Moni s g Report, dated March 1989. Should you desire further information, plesse contact us.

Very truly yours, d A hh , 2/8 E. I. Bauereis, Director Environmental Programs Fossil Engineering Services MG/nld Enclosur'.,

cc: Document Control Desk U. S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, Maryland 20850 (25 copies) ,

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