ML20141A545

Radiological Environ Monitoring Program Annual Rept for 1996, for Calvert Cliffs Nuclear Power Plant,Units 1 & 2

ML20141A545
Person / Time
Site:	Calvert Cliffs
Issue date:	12/31/1996
From:	Barley G, Bartal L, Earls C BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9705140354
Download: ML20141A545 (121)

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CALvEnt Currs NocLEAR POWER PLANT Baltimore Gas and Electric Company Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, Maryland 20657

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\\l May 9,1997 U. S. Nuclear Regulatory Commission Washington, DC 20555

' ATTENTION:

Document Control Desk

SUBJECT:

Calvert Cliffs Nuclear Power Plant, Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 Calvert Cliffs Independent Spent Fuel Storage Installation, Docket No. 72-8 Radiological Environmental Monitoring Program Annual Reoort l

REFERENCES.-

(a)

Calvert Cliffs Nuclear Power Plant Technical Specification 6.6.2 (b)

Calvert Cliffs Independent Spent Fuel Storage Installation Technical Specification 6.2 In accordance with References (a) and (b), the Baltimore Gas and Electric Company is submitting the Annual Radiological Environmental Monitoring Report, dated March 1997.

Should you have questions regarding this matter, we will be pleased to discuss them with you.

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Very truly yours, i

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9705140354 9612312 PDR ADOCK 05000317 C. E. Earls R

PDR -

General Supervisor-Chemistry

]d00$7 Attachment cc:

R. S. Fleishman, Esquire Resident Inspector, NRC J. E. Silberg, Esquire R. I. McLean, DNR A. W. Dromerick, NRC J. H. Walter, PSC Hirector, Project Directorate I-1, NRC P. Perzynski, MDE I1. J. Miller, NRC

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1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL REPORT i

March 1997 1

i Calvert Chffs Nuclear Power Plant Units 1 and 2 and the Independent Spent Fuel Storage Installation January 1 to December 31,1996 l

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RADIOLOGICAL ENVIRONMENTAL-MONITORING PROGRAM FOR THE CALVERT CLIFFS NUCLEAR POWER PLANT UNITS 1 AND 2 ANDTHE INDEPENDENT SPENT FUEL STORAGE INSTALLATION January 1 - December 31,1996 G. K. BARLEY L. J. BARTAL, Ph.D.

A. J. KAUPA 1

BALTIMORE GAS AND ELECTRIC COMPANY 4

MARCH 1997

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE OF CONTENTS L I S T O F FI G U R E S........................................................................................................ i ii LiSTOFTABLES....................................................................................................................v 1.

SUMMARY

...................................................................................................................1

11. CALVERT CLIFFS NUCLEAR POWER PLANT RADIOLOGICAL ENVf RONMENTAL MONITORING PROGRAM............................. 3 I I. A. I NTR O D U CTI O N..................................................................................... 3 II.B. Ph0 GRAM................

....................................................................3 II.B.1 O bj e c t i v e s.................................................................................. 3 II.B.2 S am pl e Coll ecti on....................................................................... 4 ll.B.3 Data i nt erpretati on............................................................................. 4 II.B.4 Pro gram Exc epti ons........................................................................ 4 11.C. RE,S U L'I,S AND D15 C U S SION S.............................................................................. 4 ll.C.1 A q uat i c En vi ronment........................................................................... 5 ll.C.I.a BayWater....................................................................................5 II.C.l.b A q uati c Organism s....................................................................... 5 ll.C.l.c S h orel i n e S ed i ment............................................................................... 6 ll.C.2 Atmospheric Environment................................................................... 9 II.C.2.a Ai r Parti c ulat e Filters................................................................. 9 II.C.2.b Airlodine....................................................................................9 lI.C.3 Terrestrial Environment...................................................................... 9 II.C 3.a Vegetation................................

.........11 II.C.4 D i rect Rad i ati on............................................................................ 1 1 1 1. D. C O N C L U S I O N............................................................................................. 1 3 111. INDEPENDENT SPENT FUEL STORAGE INSTALLATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM,...................... 21 111. A. IN TR O D U CTl ON.................................................................................... 21 I l l. B. P R O G RA M........................................................................................... 2 1 111.B.1 Obj ectives................

..........................................21 1II.B.2 Sample Collection...............................................

...................22 111.B.3 D at a I n t e rpretat i o n............................................................................ 2 2 i

111.B.4 Pro gram Ex ce pti o n s............................................................. 2 2 lll.C. R E S LT L'I'S AN D D15' C U S Sl Oh, S................................................................................v.

Ill.C.1 Atmospheric Environment............................................................... 22 111.C.l.a Air Particulate Filters.......................................................... 22 i

Hl.C.2 Terrestrial Environment...........................................................23 111.C.2.a Ve g e t a t i o n..................................................................................... 2 3 111.C.9..b Soils................................................................................................23 111.C.3 Direc t Rad iati o n........................................................................... 2 4 I l l. D. C ON C I U S I O N......................................................................................................... 2 i

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RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM FOR THE CALVERT CLIFFS NUCLEAR POWER PLANT UNITS I AND 2 AND THE INDEPENDENT SPENT FUEL STORAGE INSTALLATION January 1 - December 31,1996 G.K. BARLEY L. J. BARTAL, Ph.D.

A. J. KAUPA i

1 BALTIMORE GAS AND ELECTRIC COMPANY MARCH 1997

January 1 - December 31,1996 Docket Nos. 50-317/318 (LEFT BLANK) i 1

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January 1 - December 31,1996 Docket Nos. 50-317/318 1

2 TABLE OF CONTENTS L I S T O F FI G U R E S.................................................................................................................

LISTOFTABLES........................................................................................................................v e

i 1

I.

SUMMARY

.........................................................................................................................1

11. CALVERT CLIFFS NUCLEAR POWER PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM.............................. 3 I I. A. I N TR O D U C TI O N............................................................................................

J

-II.B. PROGRAM..................................................................................................3-II.B.1 O bj e ct iv e s.........................................................................................

ll.B.2 -

S ampl e Coll ection....... ~........................................................................ 4 II.B.3 Data I nterpretation............................................................................. 4 II.B.4 Pro gram Ex ceptions................................................................................ 4 I I.C. R ES U LTS AN D DI S C U S S I ON S...................................................................................... 4 Il.C.1 A quat i c En vironment.............................................................................. 5 ll.C.1.a BayWater.............................................................................................5 II.C.1.b Aquati c Organisms............................................................................... 5 ll.C.I.c S horelin e S ed i m ent................................................................................. 6 II.C.2 A t mo spheri c Environm ent....................................................................... 9 ll.C.2.a Ai r Parti c ul ate Filters............................................................................. 9 l

l II.C.2.b Airlodine..........................................................................................9 II.C.3

' Terrestrial Environment........................................................................ 9

. II.C.3.a V e g e t a ti o n...................................................................................... 1 1 II.C.4 Direct R ad iation.................................................................................... 1 1 I I. D. C O N C L U S I ON.................................................................................................

4 111. INDEPENDENT SPENT FUEL STORAGE INSTALLATION i

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM......................... 21 l i l. A. I N TR O D U CTI ON............................................................................................ 21 I l l. B. P R O G RA M.................................................................................................

III.B.I O bj ec t i v e s....................................................................................... 2 1 Ill.B.2 S am pl e Coll ectio n.................................................................................. 22 lil.B.3 Dat a i nt erpre tati on.............................................................................. 22 lll.B.4 Program Ex ceptio n s............................................................................ 2 2 j

111.C. R ESU LTS AN D DI S C US SION S.................................................................................. 22 Ill.C.1 Atmo sphcric Environment.................................................................. 22 Ill.C.1.a Air Partic ulat e Filters......................................................................... 22 11I.C.2 Terrestrial Environment..................................................................... 2 3 Ill.C.2.a Ve g eta t i o n............................................................................................ 2 3 III.C.2.b Soils...................................................

.............................................23 Ill.C.3 Direct Rad i ation.................................................................................... 24 l l i. D. C ON C L U S 1 ON............................................................................................................

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1 V. R E F E R F.N C E S...............................................................................................................

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APPEND1hn......................................................................................................

AnorNfVV A JJ s a sw i aA A B.............................................................................................................................47 4,

APPENDlhV C..........................................................................................................................75 i

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APPENDIXD............................................................................................................................91

-APPENDIXeE...........................................................................................................................93 2

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January 1 - December 31,1996 Docket Nos. 50-317/318 (LEFT BLANK) i li

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i January 1 - December 31,1996 Docket Nos. 50-317/318 LIST OF FIGURES i

3 Page l

Figure Title

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l Tritium in Chesapeake Bay Water...................................................................................... 7 2

Silver-11 Om and Potassium-40 in Chesapeake Bay Oysters.............................................. 8 T3 Nuclear Fallout in the Calvert Cliffs Area........................................................................10 4

4 Mean TLD Gamma Dose, Calvert Cliffs Nuclear Power Plant......................................12 j

5 Atmospheric Dispersion Around CCNPP 1996 Average Relative Air Concentrations.......................................................................I 5 1

6 Atmospheric Dispersion Around CCNPP 3

t 1996 Average Relative Ground Deposition.....................................................................17 a-1 7:

M ean TL D Gamma Dose, I S FS I...................................................................................... 2 6 j

4 A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs Nuclear Power Plant............................................................... 3 8 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations L

S c al e ! " = 1. 3 5 km.....................................................................................................;

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

......................................................................................41

- A-4 Independent Spent Fuel Storage Installation j

S am pl i n g Locati o n s......................................................................................................... 4 4

. A-5 '

Enlarged Map of the Independent Spent Fuel Storage Installation

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S am pl i n g Locat i o n s......................................................................................................... 4 5 i

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January 1 - December 31,1996 Docket Nos,50-317/318 1

a (LEFT BLANK)

IV

January 1 - December 31,1996 Docket Nos. 50-317/318 LIST OF TABLES Table Title Page 1

Synopsis of the 1996 Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program....................................... 19 2

Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant Units 1 and 2.............................................. 20 5

Synopsis of the 1996 Independent Spent Fuel Storage Installation Radiological Environmental Monitoring Program.............................................. 27 4

Annual Summary of Radioactivity in the Environs of the Independent Spent Fuel Storage Installation................................................. 28 A-1 Locations of Environmental Sampling Stations for the Calvert Cliffs N uclear Power Plant................................................................ 3 7 A-2 Locations of Environmental Sampling Stations for the i

Independent Spent Fuel Storage Installation at Calvert Cliffs............................ 43 J

1 B-1 Concentrations of Tritium and Gamma Emitters in Bay Water............................. 50 B-2 Concentrations of Gamma Emitters in the Flesh of Edible Fish........................ 51 H-3 Concentrations of Gamma Emitters in Oyster Samples....

...... 5 2 B-4 Concentrations of Gamma Emitters in Shoreline Sediment........

....................53 B-5 Concentrations of lodine-131 in Filtered Air...................................................... 54 B-6 Concentrations of Beta Emitters in Air Particulates...................................... 56 B-7 Concentrations of Gamma Emitters in Air Particulates..................................... 60 B-8a Concentration of Gamma Emitters in Vegetation Samples................................... 61 B 8b Concentrations of Gamma Emitters in Vegetation from Loeations Around the IS FSI............................................................ 63 B-9 Concentrations of Gamma Emitters In Soil Samples from Locations Around the ISFSI............................

...............................64 B-10 Typical MDA Ranges for Gamma Spectrometry................................... 65 B-ll Typical LLDs for Gamma Spectrometry........

..............66 B - 12 Di rect Radiation..................................................

.....................67 C-1 Results of Participation in Analytics Cross Check Program for 1996................ 7 9 C-2 Results of Quality Assurance Program for 1996.....................................81 C-3 Duke Power Company's Typical MDA's for Gamma Spectrometry.................. 90 D-1 L an d U s e S u rv e y........................................................................................... 9 1 E-1 Locations of Non-Tech Spec Environmental Sampling Stations for Calvert Cliffs Nuclear Power Plant.............................................................. 96 E-2 Synopsis of the 1996 Calvert Cliffs Nuclear Power Plant Non-Tech Spec Radiological Environmental Monitoring Program.................... 97 E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units 1 And 2 Non-Tech Spec Radiological Environmental Monitoring Program.................... 98 E-4 Concentrations of Gamma Emitters in Bottom Sediment............................... 99 E-5 Concentrations of I-131 in Filtered Air................................................................ 100 E-6 Concentrations of Beta Emitters in Air Particulates......................................102 E-7 Concentrations of Gamma Emitters in Air Particulates............................... 104 E-8 Concentrations of Tritium and Gamma Emitters in Tay lors I sland Well Water.................................................................. 105 E-9 Direct Radiation As Measured By Pressurized Ion Chamber.............................106 E-10 Di rec t Rad iat i o n..................................................................................... I 0 7 E-11 Resin Storage Area Direct Radiation...........................................................109 v

January 1 - December 31,1996 Docket Nos. 50-317/318 (LEFT BLANK) u

January 4 December 31,1996 Docl.et Nos. 50-317/318 L

SUMMARY

During the 1996 operating period for Calvert Cliffs Nuclear Power Plant (CCNPP) Units 1 and 2, radiochemical analyses were performed on environmental samples, and thermoluminescent dosimeters (TLDs) were analyzed for ambient radiation exposure rates. These analyses were performed to satisfy the requirements of the CCNPP Ofr-Site Dose Calculation Manual (ODCM), Sections 3/4.12.

For the Independent Spent Fuel Storage Installation (ISFSI), radiochemical analyses were performed on environmental samples, some of which were in common with the power plant program. Additional TLDs, some of which are also in common with the power plant program, were analyzed for ambient radiation exposure rates. These analyses were performed to satisfy the requirements of the ODCM.

In addition, analyses were performed on quality assurance samples, and quality assurance TLDs j

were analyzed for ambient radiation exposure rates as part of the Analytics Cross-Check Program j

and an internal Quality Assurance Program with Duke Power Company, Radiological and Environmental Servkes.

And lastly, analyses were performed on extra environmental samples, and extra TLDs were analyzed for ambient radiation exposure rates. Also, six pressurized ion chambers continuously monitored the environs around the plant for ambient radiation levels. The additional analyses reflect a commitment to maintain historical continuity for samples and sampling pathways discontinued frem the program when the Environmental Technical Specifications were changed in March 1985 and to satisfy our commitment to the community.

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 radionuclides.

Monitoring the atmospheric environment involved sampling the air at various locations sur-rounding CCNPP and the ISFSI. Air particulates and gaseous iodine were collected on glass fiber filters and silver zeolite molecular sieve cartridges, respectively. The particulate filters

-were analyzed fbr beta activity and gamma emitting nuclides. The molecular sieve cartridges were analyzed for airborne gaseous radiciodine.

Samples from the terrestrial environment consisted of vegetation and soil samples, collected and analyzed for gamma emitters. Vegetation samples for the CCNPP REMP were also analyzed for 1-131.

Measurements of direct radiation, as reqdred by the ODCM, were performed by analyzing TLDs from forty locations surrounding CCNPP rnd the ISFSI.

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January 1 - December 31,1996 Docket Nos. 50-317/318 Low levels of various man-made fission and activation by-products were observed in the environment surrounding the plant during 1996. Some of these observations were attributed to fallout from past atmospheric weapons testing. The others cited were related to the operation of the plant (e.g.,11-3 in quarterly composited bay water samples, Ag-110m in oyster samples, and Co-60 in soil samples).

To assess the plant's contribution to the radiation levels of the ambient enviromnent, dose calculations were performed using the plant's effluent release data, on-site meteorological data, and appropriate pathways. The results of these dose calculations indicate:

a. a maximum thyroid dose of 4.70x10-3 mrem via liquid and gaseous pathways, about 0.006% of the acceptable limit of 75 mrem /yr as specified in 40 CFR 190;

b. a maximum whole body dose of 1.16x10 2 mrem via liquid and gaseous pathways, about 0.05% 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 4

was equal to 2.45x10 mrem to the GI-Tract. This dose was about 1% 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 Calvert Cliffs Nuclear Power Plant Units I and 2 and the ISFSI did not cause any significant radiological impact on the surrounding environment during 1996.

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January 1 - December 31,1996 Docket Nos. 50-317/318 4

l II. CALVERT CLIFFS NUCI EAR POWER PLANT j

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM II.A. INTRODUCTION Baltimore Gas and Electric Company (BGE) 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 I achieved criticality on October 7,1974 and conunenced commercial operatior, 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 (REMP) was conducted under j

separate Environmental Technical Specifications (34,35). On July 29,1977 the monitoring program began operation under a combined set of Technical Specifications (36) for both Units.

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 (37). Changes in the program (sample locations, sample types, and/or sampling frequencies) were implemented to conform to these revisions. In October 1996, the Nuclear Regulatory Commission approved the relocation of these Technical Specifications to the ODCM in accordance with Generic Letter 89-01. (47)

Results of the monitoring program for the pre-operational and previous operational periods through December 31,1995 have been reported in a series of documents (1-32).

Results of the monitoring program for the current operational period of January 1,1996 through December 31,1996 are included in this report. The report presents the content of the Radiological Environmental Monitoring Program (Table 1), the sampling locations (Appendix A), the summary of the analytical results of 1996 (Table 2), a compilation of the analytical data for 1996 (Appendix B), the results of the Analytics Intercomparison Program and the Quality Assurance Program (Appendix C), the results of the Land Use Survey (Appendix D), and a compilation of the analytical data for extra samples collected in 1996 (Appendix E).

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 to evaluate the environmental radiological impact of Calvert Cliffs Nuclear Power Plant Units 1 and 2 during 1996.

ILB. PROGRAM ll.B.1 Dbjectises The objectives of the REMP for the Calvert Cliffs Nuclear Power Plant are:

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January 1 - December 31,1996 Docket Nos. 50-317/318 To verify that radioactivity and ambient radiation levels attributable to plant a.

operation are within the limits specified in the ODCM (38) and the Environmental Radiation Protection Standards as stated in 40 CFR Part 190, I

b. To detect any measurable buildup oflong-lived radionuclides in the environment,

c. To monitor and evaluate ambient radiation levels,

d. To determine whether any statistically significant increase occurs in the con-centration of radionuclides in important pathways.

i II.B.2 Sampic Collection l

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 Calvert Cliffs Nuclear Power Plant Procedures (39).

II.B.3 Data interpretation Many results in environmental monitoring occur at or below the minimum detectable activity (MDA). In this report, all results at or below the relevant MDA are reported as being "less than" the MDA value.

li.B.4 Procram Exceptions During 1995, one program exception had been identified. The sample garden required by Technical Specifications to be located at, or near, the Site Boundary is actually located closer to the plant than the Site Boundary. This lo :ation is more conservative than the requirement, but still necessitated entry into the ACTION statement as required by the Technical Specifications.

Corrective action was completed in 1996 when a proper description of the garden location was incorporated into the requirement when it was relocated from the Technical Specification to the Off-Site Dose Calculation Manual (38).

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_11.C. RESULTS AND DISCUSSIONS All the environmental samples collected during the year were analyzed using BGE's laboratory procedures (41). The analytical results for this reporting period are presented in Appendix B and are also summarized in Table 2. For discussion, the analytical results are divided into four categories. The categories are the Aquatic Environment, the Atmospheric Environment, the Terrestrial Environment, and Direct Radiation. Thera categories are further divided into subcategories according to sample type (e.g., Bay Water, Aquatic Organisms, etc., for the Aquatic Environment).

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January 1 - December 31,1996 Docket Nos. 50-317/318 II.C.) Aountic 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.

II.C.I.a Hav 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 were analyzed for tritium and gamma emitters.

The tritium analyses, performed on quarterly composites of the monthly bay water samples, showed the presence of tritium in the Discharge (Wa2) samples for all four quarters and a single, detectable reading in the intake (Wal) for the first quarter. The concentrations observed ranged from 36 33 to 112 37 pCi/L, which is similar to those ranges observed in previous years,(7-32).

The single, detectable intake sample was 36*33 pCi/L, which is slightly above the minimum detectable activity and is approximately the same level as the few instances of detectable tritium observed in the intake in 1992,1993 and 1995. Investigation has shown that this is due to the backflow of discharge water into the intake, a periodic phenomenon.

Figure 1 compares tritium observed in the plant discharge and intake with annual effluent releases in 1996 as reported in the Radioactive Effluent Release Repon required by Technical Specification 6.6.3.

Monthly analyses of bay water samples from both locations for gamma emitters exhibited no detectable concentrations of any plant-related radionuclides.

II.C.I.b Aquatic Organisms i

Samples of aquatic organisms were obtained from three locations during the year. Samples of tish, when in season, are nonnally collected from the intake-Discharge Area (sample codes !al and la2) and from the Patuxent River (sample codes la4 and la5). As shown in Table B-2, two species of fish were sampled at both the plant intake and the control point in the Patuxent River.

Oyster samples wer obtained quarterly from Camp Conoy (sample code la3) and Kenwood Beach (sample code la6). Edible portion of the fish and oyster samples were analyzed for gamma emitters, uma spectrometric analyses of the fish samples exhibited no detectable concentrations of any plant-related radionuclides.

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January 1 - December 31,1996 Docket Nos. 50-317/318 Quarterly analyses for gamma etnitters in oysters continued to show low levels of detectable concentrations of a plant related radionuclide, Ag-110m,in samples obtained from Camp Conoy (la3). The observed concentrations ranged from 20*7 to 44 *14 pCi/kg. The magnitude of this range of values is similar to ranges observed previously (7-32) and is just above background. A historical plot of the data from this location, Figure 2, demonstrates this clearly.

II.C.l.c Shoreline Sediment Semiannual shoreline sediment samples were taken from one location during the year. This location is Shoreline at Barge Road (sample code Wbt). The samples obtained from this location were analyzed for gamma emitters.

Gamma spectrometric analyses of these samples exhibited no detectable concentrations of any plant-related radionuclides.

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January 1 - December 31,1996 Docket Nos. 50-317/318 i

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January 1 - December 31,1996 Docket Nos. 50-317/318 FIGURE 2 Silver-110m and Potassium-40 in Chesapeake Bay Oysters g

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January 1 - December 31,1996 Docket Nos. 50-317/318 II.C.2 Atmospheric Environment The atmospheric environment was monitored by analyzing air particulate filters and silver zeolite cartridges (for trapping radiciodine species). These samples were collected from five locations surrounding the plant. These locations are On Site before the Entrance to Camp Coney (sample code A1), Camp Conoy Road at the Emergency Siren (sample code A2), Bay Breeze Road (sample code A3), Route 765 at Lusby (sample code A4), and at the Emergency Operations Facility (sample code A5).

fl.C.2.a Air Particulate Filters Weekly composite air particulate filter samples were collected from the five locations during the year. These samples were analyzed for beta activity and gamma emitters.

Weekly analyses for beta activity on air particulate filters collected from all five locations showed values cparacteristic of background levels (7-32)2 o 3 7x10 -2The values r t

3.9x 10-2 pCi/m for the indicator locations and 0.8x10 t

pCi/m at the control lo-cation. The location with the highest overall mean of 1.7x10 -I pCi/m > was A5 at the Emergency Operation Facility.

Gamma spectrometric analyses of monthly composited air particulate samples exhibited no detectable concentrations of any plant-related radionuclides in any of these samples.

Figure 3 depicts the historical trends of beta activity.

II.C.2.b Air lodint Weekly composited silver zeolite cartridges (for trapping radiciodine species) were collected from the five locations during the year. These samples were analyzed for radiciodine species.

Weekly radiciodine analyses of silver zeolite cartridges collected from all five locations ex-hibited no detectable concentrations ofI-131.

Figure 3 depicts the historical trends of radioiodine.

II.C.3 Terrestrial Environment The terrestrial environment was monitored by analyzing samples of vegetation collected monthly, when available. from various sampling locations near the plant during the normal growmg season.

During the 1995 internal QA audit, it was noted that the REMP program south sector sample locations DR7 (direct radiation), A1 (airbome), and Ib4-6 (ingestion, food products) are not located in the " general area of/close to/near the Site Boundary", as required by Technical Specification Table 3.12-1. This sampling is co-located at the onsite entrance to Camp Conoy, which is located approximately 0.7 km south of the plant discharge for gaseous waste. The Site Boundary in this sector varies between approximate y 2.1 and 2.9 kms from the plant main vent discharge.

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January 1 - December 31,1996 Docket Nos. 50-317/318 -

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I FIGURE 3 Nuclear Fallout in the Calvert Cliffs Area SURFACE AIR VAPORS,LUSBY,MD (A4) 1 300 260 c9 E

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I

January 1 - December 31,1996 Docket Nos. 50-317/318 In response to the discovery of this issue, CCNPP personnel determined that the current sampling location is conservative with respect to the Technical Specification requirement and, therefore, meets the intent of the requirement. Nonetheless, this sampling location does not meet the letter of the description in the Technical Specification, and, as such, required entry into the Technical Specification ACTION statement to "... prepare and submit to the Commission...a description of the reasons for not conducting the program as required and the plans for preventing a i

recurrence". The former Technical Specification wording was revised to more clearly reflect our current sampling program when the requirement was relocated to the ODCM in 1996 (47).

II.C.3.a Vegeta&n Vegetation samples were collected from three locations during the year. These locations are Garden Plot off Bay Breeze Road (sample codes Ibt, Ib2, and Ib3), On Site before the Entrance to Camp Conoy (sample codes Ib4, Ib5, and Ib6), and the Emergency Operations Facility (sample codes Ib7, Ib8, and Ib9). These samples were analyzed for gamma emitters, including analyses for 1-131.

Gamma spectrometric analyses exhibited no detectable concentrations of plant-related radionuclides in any of these samples.

II.C.4 Direct Radin@n Direct radiation is measured by a network of TLDs in each overland sector surrounding the Plant both at the plant boundary and at 4 miles from the Plant.

During the year the TLD system was improved to allow the use of automatic reading and data transmission. This required a change to a new TLD (Panasonic Model 814) containing three i

elements used for environmental monitoring. Testing of the dosimeters was conducted in accordance with Regulatory Guide 4.13 and ANSI N545 and the new system was placed in service in September 1996.

Thermoluminescent dosimeters were collected monthly from twenty-three locations surrounding the plant. The twenty indicator locations are On Site Along the Cliffs (sample code DRI), Route 765 Auto Dump (sample code DR2), Giovanni's Tavern (sample code DR3), Route 765 across from White Sands (sample code DR4), John's Creek (sample code DRS), Lusby (sample code DR6), On Site before the Entrance to Camp Conoy (sample code DR7), On Site at 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 (sam ale code DR13), Rodney Point (sample code DRl4), Mill Bridge and Turner Roads (sample coc e DR15), Appeal School (sample code DR16), Cove Point and Little Cove Point Roads (sample code DRl7), Cove Point (sample code DR18), Long Beach (sample code DR19), and On Site Near Shore (sample code DR20). The three control locations are the Emergency O )erations Facility (sample code DR21),

Solomons Island (sample code DR22), and Taylors Islanc, Carpenters Property (sample code DR23).

The mean 30 day ambient radiation measured at the indicator locations was 3.69 mR and ranged from 2.46 to 5.26 mR as reported in Table 2. The control locations showed a 30 day mean of 3.93 mR with ranges from 2.20 to 5.72 mR. The location with the highest overall mean of 4.86 was DR23, Taylors Island, Carpenters Property, which ranged from 3.79 to 5.72 mR. A comparison of the means and ranges of the current TLD data with those of both the historcal data and the regional data (7-32) shows no plant-related contribution to the measured direc'.

radiation exposure for 1996. Figure 4 shows the historical comparison of the yearly means of the TLDs on site, at four miles, and at the control locations.

11

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Docket Nos. 50-317/318 II.D. CONCLUSION 4

Low levels of various man-made fission and activation by-products were observed in the environment surrounding the plant during 1996. Some of these observations were attributed to fallout from past atmospheric weapons testing. The others cited were related to the operation of the plant (e.g., Ag-110m in oyster samples and tritium in quarterly composited bay water samples).

liistorical trends for tritium in bay water, Ag-110m and K-40 in oyster samples, nuclear fallout in the Calvert Cliffs area, and TLD data are depicted in Figures 1 through 4. As can be seen from j

these figures, the plant made radiological contributions to the surrounding environment during 1996.

To assess the plant's contribution to the ambient radiation levels of the surrounding environment, dose calculations were performed using the plant's effluent release data, on site meteorological data (see X/Q and D/Q values presented in Figures 5 and 6), and appropriate pathways. The results of these dose calculations indicate:

Gaseous Pathways A maximum thyroid dose of 9.02x10-4 mrem to a child via the plume, ground, vegetable, meat, and inhalation pathways at 1.8 km SW of Calvert Cliffs. This is about 0.001% of the acceptable limit of 75 mrem / year as specified in 40 CFR 190,

" Environmental Radiation Protection Standards for Nuclear Power Operations."

A maximum whole body gamma dose of 1.88x10-4 mrem to a child at 1.8 km SSW of Calvert Cliffs, about 0.0008% of the acceptable dose limit of 25 mrem / year as specified in 40 CFR 190.

A maximum dose to any other organ, in this case liver, of 9.20x10-4 mrem at the Site Boundary,2.0 km W of Calvert Cliffs. This is about 0.004% of the acceptable dose limit of 25 mrem / year as specified in 40 CFR 190.

Liguld Pathways A maximum thyroid dose of 3.80x10-3 mrem to a teenager for all liquid pathways, about 0.005% of the acceptable dose limit of 75 mrem / year as specified in 40 CFR 190.

A maximum whole body dose of 1.14x10-2 mrem via all liquid pathways, less than 0.05% of the acceptable dose limit of 25 mrem / year as stated in 40 CFR 190.

13

[

January 1l-December 31,1996 Docket Nos. 50-317/318 A maximum dose to any organ, in this case the GI-Tract, of 2.45x10-1 mrem, j

which is 1% of the acceptable dose limit of 25 mrem / year specified in 1

40 CFR 190.

t

^

Gaseous and Llauld Pathways Combined A maximum thyroid dose of 4.70x10-3 mrem via liquid and gaseous pathways, -

about 0.006% of the acceptable limit of 75 mrem / year specified in 40 CFR 190.

m i

' A maximum whole body dose of 1.16x10-2 mrem via liquid and gaseous j

' pathways which is about 0.05% of the acceptable limit of 25 mrem / year as speci-

.j' ficd in~40 CFR 190.

. A maximum calculated dose to all other organs via liquid and gaseous pathways.

was equal to 2.45x10-1 mrem to the GI-Tract. This dose is about 1% of the -

allowable limit of 25 mrem / year as specified in 40 CFR 190.

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In all cases, the calculated doses are a small fraction of the applicable limits specified in j

40 CFR 190. Therefore, it is concluded that the operation of Calvert Cliffs Units 1 & 2 produced

)

- radioactivity and ambient radiation levels significantly below the limits of Off-Site Dose Calculation Manual and 40 CFR Part 190. There was no measurable buildup oflong-lived E

radionuclides in the environment due to Calvert Cliffs. In addition, there was no statistically ~

l" significant increase in the concentration of plant-related radionuclides in important pathways.

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January 1 - December 31,1996 Docket Nos. 50-317/318 4

i FIGURE S Atmospheric Dispersion Around CCNPP 1996 Average Relative Air Concentrations d

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January 1 - December 31,1996 Docket Nos. 50-317/318 1

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January 1 - December 31,1996 Docket Nos. 50-317/318 FIGURE 6 Atmospheric Dispersion Around CCNPP 1996 Average Relative Ground Deposition 1,

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17 L____ _ _ _ _ _ ___________

January 1 - December 31,1996 Docket Nos. 50-317/318

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January 1 - December 31,19%

Docket Nos. 50-317/318 TABLE 1 Synopsis of 1996 Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Sampling Number of Number Analysis Number Sample Type Frequency

• Locations Collected Analysis Frequency Analyzed 3

Aquatic Environment Bay Water MC 2

24 Gamma M

24 H-3 QC 8

2 Fish A

2 4

Gamma A

4 Oysters Q

2 8

Gamma Q

8 Shoreline Sediment SA I

2 Gamma SA 2

Atmospheric Environment 3

Air iodine W

5 257 I-131 W

257 Air Paniculates '

W 5

257 Gross Beta W

257 Gamma MC 60 Direct Radiation Ambient Radiation M

23 1288 TLD M

1288 Terrestrial Environment 5

Vegetation M

9 45 Gamma M

45

' W-weekly, M-monthly, Q-quarterly, SA-semiannual A-annual, C-composite

• Once in Season, July Drough September

' He collection device contains silver zeolite

• Beta counting is perfomed after >= 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> decay. Gamma spectroscopy performed on monthly composites of weekly samples

' Monthly during Growing Season s

19

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE 2 Annual Summary of Radioactivitiy in the Environs of the j

Calvert Cliffs Nuclear Power Plant Units I and 2 Location with Ilighest Medium or Type and Lower Limit Indicator Annual Mean Ilighest Control i

Pathway Sampled Total Number of Locations Annual Locations (Unit of ofAnalyses Detection Mean (F)/

Name/

Mean (F) /

Mean (F)/

Measurement)

Performed (LLD)

Range' Distance & Direction Range Range '

2 Aquatic Environment Bay Water II-3 (8) 54 92 (4/4)

Discharge Area Wa2 92 (4/4) 36(l/4)

(pCi/L)

(81-112) 0.3 km N (81-112)

Oysters Gamma (8) 14 33 (4/4)

Camp Conoy la3 33 (4/4)

(pCi/kg)

Agt 10m (20-44) 0.9 km E (20-44)

Atmospheric Environment Air Particulates Gross Beta 0.5 1.4 (205/205)

EOF A5 1.7 (52/52) 1.7 (52/52)

(102 pCi/m')

(257)

(0.3-3.9) 19.3 km WNW (0.8-3.7)

(0.8-3.7)

Direct Radiation A.mbient Radiation TLD (1288) 3.69 Taylors Island DR23 4.86 3.93 (168/168)

(mR/30 days)

(l120/1120) 12.6 km ENE (56/56)

(2.20-5.72)

(2.46-5.26)

(3.79-5.72)

' Mean and range based upon detectable measurements only. Fraction (F) of detectable measurements at specified location is indicated in parentheses.

• From the centerpoint between the two containment buildings.

20

. ~.

January 1 - December 31,1996 Docket Nos. 50-317/318 III. INDEPENDENT SPENT FUEL STORAGE INSTAILATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM i

III.A. INTRODUCTION in August 1990 BGE initiated a program of additional radiological environmental monitoring around the site for the Independent Spent Fuel Storage Facility (ISFSI). The first dry fuel storage canister was loaded into the ISFSI in November of 1993.

Results of the monitoring program for the ISFSI for the current period of January 1,1996 through December 31,1996 are included in this report.

This report presents the content of the ISFSI radiological environmental monitoring program (Table 3), the ISFSI sampling locations (Appendix A), the summary of the analytical results of the period (Table 4), and a compilation of the analytical data for the period (Appendix B). Inter-pretation of the data and conclusions are presented in the body of the report.

The ISFSI monitoring program is as described in this section of the report with the exception of the Pressurized Ion Chambers (PICS). Pressmized Ion Chambers, because they duplicate direct surveillance by TLDs and because they experience problems with reliability, were excluded from i

the Technical Specification portion of the ISFSI REMP (46). Pressurized Ion Chambers' results, however, are given in table E-9 and will continue to be a non-Technical Specification surveillance to satisfy our commitment to the community.

The results for 1996 were compared with that generated during the previous ISFSI pre-operational periods (33) and the current and previous CCNPP REMP periods (7-32). These comparisons demonstrate the consistency of data throughout the CCNPP site, which are very close to the natural background levels for the region. A discussion of these results is given in Section 111. C. 3.

III.B. PROGRAM 111.B.1 Obiectives The objectives of the radiological environmental monitoring program for the ISFSI are:

a. To satisfy the community concern regarding the impact of the ISFSI on the environment,

b. To verify that radioactivity and ambient radiation levels attributable to operation of the ISFSI are within the limits specified in the Environmental Radiation Protection Standards as stated in 40 CFR Part 190,

c. To detect any measurable buildup oflong-lived radionuclides in the environment due to the ISFSI, 21

1 January 1 - December 31,1996 Docket Nos. 50-317/318

d. To monitor and evaluate ambient radiation levels around the ISFSI,

e. To determine whether any statistically significant increase occurs in the con-centration of radionuclides near the ISFSI.

III.B.2 Sample Collection The locations of the individual sampling sites are listed in Table A-2 and shown in Figures A-4 and A-5. All samples were collected by BGE personnel according to Calvert Cliffs Nuclear Power Plant Procedures (39).

lil.B.3 Data Interpretation Many results in environmental monitoring occur at or below the minimum ~ detectable activity (MDA). In this report, all results at or below the relevant MDA are reported as being "less than" the MDA value.

III.B.4 Pronrum Exceptions There were no program exceptions during 1996.

i Ill.C. RESULTS AND DISCUSSIONS All the environmental samples collected during the year were analyzed using BGE's laboratory procedures (41). The analytical results for this reporting period are presented in Appendix B and are also summarized for the period in Table 4. For discussion, the analytical results are divided into three categories. The categories are the Atmospheric Environment, the Terrestrial Environment, and Direct Radiation. These categories are further divided into subcategories i

according to sample type (e.g., Vegetation and Soil for Terrestrial Environment).

l Ill.C.1 Atmospheric Environment The atmospheric environment was monitored by analyzing air particulate filters. These samples t

were collected from five locations surrounding the ISFSI.

No source of airborne radiciodine exists for the ISFSI. Airborne radioiodine is, therefore, not considered.

Ill.C.l.a Air Particulate Filters Weekly composite air particulate filter samples were collected from five locations during the period. These locations are On Site before the Entrance to Camp Conoy (sample code Al; in common with the CCNPP REMP), Meteorological Station (SFA1), CCNPP Visitors Center i

(SFA2), NNW of the ISFSI (SFA3), and South of the ISFSI (SFA4). These samples were an-alyzed for beta radioactivity and gamma emitting radionuclides.

22

January 1 - December 31,1996 Docket Nos. 50-317/318 Weekly analyses for beta activity on air particulate filters collected from all five locations showed values characteristic oflevels routinely observed in the IEh1P (7-32). These values pCi/m3 or the indicator locations and 0.8x10-2 to 3.2x10-2 ranged from 0.5x10-2 o 2.8x10-2 f

t pCi/m3 or the control location. The location with the highest overall mean of 1.6x10-2 pCi/m3 f

was SFA2 at the CCNPP Visitors Center.

Gamma spectrometric analyses of monthly composited air particulate samples exhibited no detectable concentrations of any plant-related radionuclides in any of these samples.

lil.C.2 Ierrestrial Environment The terrestrial environment was monitored by analyzing samples of vegetation and soil collected quarterly from the vicinity of the air sampling locations for the ISFSI.

Ill.C.2.a Vecetation Vegetation samples were collected quarterly from five locations during the year. These locations are: hieteorological Station (sample code SFbl), CCNPP Visitors Center (sample code SFb2),

NNW of the ISFSI (sample code SFb3), South of the ISFSI (sample code SFb4), and On Site before the Entrance to Camp Conoy (sample code SFb5). These samples were analyzed for gamma emitters.

Gamma spectrometric analyses of these samples revealed the presence of Cs-137. The range of Cs-137 concentrations observed was 52 19 to 196 27 pCi/kg. While the presence of Cs-137 in these samples may be plant-related, this range is consistent with that found to be due to the residual fallout from past atmospheric nuclear weapons testing. These activities are well below the federal limits established in 40 CFR 190," Environmental Radiation Protection Standards for Nuclear Power Operations" and are comparable to those observed in previous annual reporting periods for the CCNPP REhiP (7-32) and in the earlier pre-operational data for the ISFSI (33).

III.C.2.b Snih Soil samples were collected quarterly from five locations surrounding the ISFSI in the vicinity of the air samplers. These locations are: hieteorological Station (sample code SFS1), CCNPP Visitors Center (sample code SFS2), NNW of the ISFSI (sample code SFS3), South of the ISFSI (sample code SFS4), and On Site before the Entrance to Camp Conoy (sample code SFS5).

Soil samples were analyzed for gamma emitting radionuclides. Cesium-137 was detected in quarterly samples from all sites, while Co-60 was detected in two quarterly samples from the Visitors Center (SFS2). The Cs-137 concentrations ranged from 12 9 to 1141 65 pCi/kg and the Co-60 ranged from 16*19 to 18 15 pCi/kg. While the presence of Cs-137 in these samples may be plant-related, this range is consistent with that found to be due to the residual fallout from past atmospheric nuclear weapons testing. The presence of Co-60 is plant-related; however, the values are near the minimum detectable activity. The activities of both these radionuclides are well below the federal limits established in 40 CFR 190, " Environmental 23

January 1 - December 31,1996 Docket Nos. 50-317/318 Radiation Protection Standards for Nuclear Power Operations" and are comparable to those observed in previous annual reporting periods for the CCNPP REMP (7-32) and in the earlier pre-operational data for the ISFSI (33).

Ill.C.3 Direct Radiation Direct radiation is measured by a network of TLDs surrounding the ISFSI. These thermo-luminescent dosimeters are collected monthly from seventeen locations surrounding the ISFSI, plus one control TLD location at the Visitors Center (sample code SFDR7). The locations include On Site before the Entrance to Camp Conoy (sample code DR7, common to both the CCNPP Program and the ISFSI Program) and the Meteorological Station (sample code DR30, previously a location maintained for historical continuity.) The other sampling locations are:

SW ofISFSI, Collocated with Plant TLD #159,(sample code SFDRI); N ofISFSI, Collocated with Plant TLD #160, (sample code SFDR2); NNE ofISFSI, Collocated with Plant TLD #161, (sample code SFDR3); NE ofISFSI, Collocated with Plant TLD #162, (sample code SFDR4);

E ofISFSI, Collocated with Plant TLD #163, (sample code SFDRS); ESE ofISFSI, Collocated with Plant TLD #164,(sample code SFDR6); North Northwest ofISFSI,(sample code SFDR8);

South ofISFSI, (sample code SFDR9); NNW ofISFSI,(sample code SFDR10); WNW ofISFSI, (sample code SFDR11); West ofISFSI, (sample code SFDR12); SSW ofISFSI,(sample code SFDR13); SSE ofISFSI, (sample code SFDR14); ENE ofISFSI, (sample code SFDR15); and WSW ofISFSI,(sample code SFDR16). Sampling locations are shown on Figures A-4 and A-5.

During the year the TLD system was improved to allow the use of automatic reading and data transmission. This required a change to a new TLD (Panasonic Model 814) containing three elements used for environmental monitoring. Testing of the dosimeters was conducted in accordance with Regulatory Guide 4.13 and ANSI N545 and the new system was placed in service in September 1996.

The mean 30 day ambient radiation measured at the ISFSI indicator locations was 4.95 mR and ranged from 2.85 to 13.55 mR as reported in Table 4. The control location showed a 30 day mean of 4.20 mR and ranged from 3.65 to 5.07 mR. A comparison of the mean and ranges of the current TLD data with those of both the historical data and the regional data (32) reveals only one set of elevated TLD readings.

24

January 1 - December 31,1996 l

Docket Nos. 50-317/318 4

That location with the highest overall mean of 10.94 mR with ranges from 8.71 to 13.55 mR was SFDR10, North Northwest ofISFSI. These readings are consistent with those expected from the storage of spent fuel in the ISFSI (32). A comparison of the mean ISFSI TLD data with the ISFSI control location at the Visitors Center, SFDR7, can be seen in Figure 7.

III.D. CONCLUSION Low levels of Cs-137 and Co-60 were observed in the environment surrounding the ISFSI during the period. The Cs-137 observations were attributed to fallout from past atmospheric weapons testing while the low level Co-60 observations were related to past plant operations.

t in general, the results in the following tables continue the historical trends previously observed at the official sites of the Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program (7-32).

i I

i l

i A

i h

25

hnuary 1 - December 31.1996 Docket Nos. 50-317/318 FIGURE 7 Mean TLD Gamma Dose,ISFSI 6

--+- Control Location (SF DR 7) 3 l

- -isFsi Mean (oR7 a 30. SFDR1-6. 8-16) l Am 4g l

5C O2 3 2

E 2

i 1

0-90 91 92 93 94 95 96 l

l i

l 26 i

Docket Nos. 50-317/318 TABLE 3 Synopsis of 1996 Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Radiological Envirrmmental Monitoring Program Sampling Number of Number Analysis Number Sample Type Frequency '

Locations Collected Analysis Frequency '

Analyved Atmospheric Environment 2

Air Particulates W

5 260 Gross Beta W

260 Gamma MC 60 Direct Radiation Ambient Radiation M

18 1008 TLD M

1008 Terrestrial Environment Vegetation Q

5 20 Gamma Q

20 Soil Q

5 20 Gamma Q

20

?l IIi'

' W-weekly, M-monthly, Q-quarterly, SA-semiannual, A-annual, C-composite

• Beta counting is perfomed after >= 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> decay. Gamma spectroscopy performed on monthly composites of weekly samples 27

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE 4 Annual Summary of Radioactivitiy in the Environs of the Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Type and Indicator Location with Highest Medium or Total Lower Limit Locations Annual Mean Ilighest Control Pathway Sampled -

Number of of Mean (F)/

Annual Locations (Unit of Analyses Detection Range' Name/

Mean (F) /

Mean (F)/

2 Measurement)

Performed (LLD)

Distance & Direction Range' Range' Atmospheric Environment Air Particulates Gross Beta 0.5 1.5 (208/208)

Visitors Center SFA2 1.6 (52/52) 1.6 (52/52)

(10'2 pCi/m')

(260)

(0.5-2.8) 0.7 km NNE (0.8-3.2)

(0.8-3.2)

Direct Radiation Ambient Radiation TLD (1008) 4.95 (952/952)

NNW ofISFSI 10.94(56/56) 4.20(56/56)

(mR/30 days)

(2.85-13.55)

SFDR10 (8.71-13.55)

(3.65-5.07) 0.1 km NNW Terrestrial Enviromnent Vegetation Gamma (20) 27 124 (4/16)

NNW Corner of 196 (1/4) 50 (1/4)

(pCi/L)

Cs-137 (52-196)

ISFSI SFb3 0.1 km NNW Soil Gamma (20) 17 412 (13/16)

NNW ofISFSI SFs3 765 (4/4) 215 (4/4)

(pCi/kg)

Cs-137 (12-1141) 0.1 km NNW (168-1141)

(124-285)

I i

' Mean and range based upon detectable measurements only. Fraction (F) of detectable measurements at specified location is indicated in parenthsses.

• From the centerpoint of the ISFSI facility.

28

January 1 - December 31,1996 -

Docket Nos. 50-317/318 IV. REFERENCES (1)

Cohen, L. K., "Preoperational Environmental Radioactivity Monitoring Program at Calvert Cliffs Units 1 and 2", NUS No. 882 Semiannual Report January-June 1971, December 1971; NUS No.1025 Annual Report 1971, March 1973.

(2)

Cohen, L. K., "Preoperational Environmental Radioactivity Monitoring Program at Calvert Cliffs Units 1 and 2", NUS No. I137 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. I188, 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", NUS No.1331 Annual Report 1974, February 1975.

(6)

Malmberg, M. S., "Preoperational Environmental Radioactivity 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 i

Environmental Surveillance Program, January I to June 30,1974, December 1974.

l (8)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant - Semiannual Operating Report, July - December 1974, March 1975.

(9)

Radiation Management Corporation, Radiological Environmental Monitoring Program -

Semiannual Report for Calvert Cliffs Nuclear Power Plant, July I through December 31, 1974, RMC-TR-75-06, August 1975.

(10)

Baltimore Gas and Electric Company and Radiation Management Corporation, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Semiannual Report, January 1 - June 30,1975, RMC-TR-75-11, September 1975.

(11)

Baltimore Gas and Electric Company and Radiation Management Corporation, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Semiannual Report, July 1 - December 31,1975, RMC-TR-76-02, March 1976.

(12)

Baltimore Gas and Electric Company and Radiation Management Corporation, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Semiannual Report, January 1 - June 30,1976, RMC-TR-76-06, September 1976.

(13)

Baltimore Gas and Electric Company and Radiation Management Corporation, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Semiannual Report, July 1 - December 31,1976, RMC-TR-77-07, March 1977.

29

January 1 - December 31,1996 Docket Nos. 50-317/318 (14)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1977, March 1978.

(15)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1978, March 1979.

(16)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1979, March 1980.

(17)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1980, March 1981.

(18)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1981, March 1982.

(19)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1982, March 1983.

(20)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1983, March 1984.

(21)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1984, March 1985.

(22)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1985, March 1986.

(23)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1986, March 1987.

(24)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1987, March 1988.

(25)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1988, March 1989.

30

1 l

January 1 - December 31,1996 Docket Nos. 50-317/318 (26). B'altimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1989, March 1990.

(27)

Baltimore Gas and Electric Company, Calvent Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1990, March

-1991.

(28)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January l - December 31,1991, March

~

1992.-

. (29)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1992, March

-1993.

i (30)

Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1993, March 1994.

(31). Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1994, March 1995.

(32). Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31,1995, March 1996.

(33)

Baltimore Gas and Electric Company, Radiological Environmental Monitoring Program Pre-

)

Operational Report for the Calvert Cliffs Independent Spent Fuel Storage Installation, August 1990 - November 1993, February 1994.

(34)

Calvert Cliffs Nuclear Power Plant, Unit Number 1, License No. DPR-53, Appendix A, Technical Specifications; Appendix B, Environmental Technical Specifications.

(35)

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

)

(36)

Calvert Cliffs Nuclear Power Plant, Unit Nos. I 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.

(37)

Calvert Cliffs Nuclear Power Plant, Unit Nos. I and 2, License Nos. DPR-53 and DPR-69,

)

' Amendment No.100 for Unit No.1, Amendment No. 83 for Unit No. 2, Appendix A Technical Specifications.

1 31

January 1 - December 31,1996 Dockct Nos. 50-317/318

- (38)

Off-Site Dose Calculation Manual for the Baltimore Gas & Electric Company Calvert Cliffs Nuclear Power Plant.

(39)

CP-234, Specification and Surveillance for the Radiological Environmental Monitoring Program.

(40)

Duke Power Company Environmental Services, Laboratory Procedures.

(41)

Baltimore Gas and Electric Company, Laboratory Procedures Manual, Chemistry Unit, Fossil Engineering and Maintenance Dept.,1996.

(42)

Calvert Cliffs Nuclear Power Plant, Docket Nos. 50-317/318 Semiannual Effluent Release Reports: January - June 1996 and July - December 1996.

(43)

U.S. NRC Regulatory Guide 1.109, " Calculation of Annual 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.

(44)

U.S. NRC Regulatory Guide 1.111," Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Efiluents in Routine Releases from Light-Water-Cooled Reactors",

Revision 1, July 1977.

(45)

Baltimore Gas and Electric Company, " Land Use Survey Around Calvert Cliffs Nuclear Power Plant",1996.

(46)

Letter from Mr. R. E. Denton (BGE) to Mr. T. T. Martin (NRC), dated November 24,1993, Annual Report of Changes, Tests, and Experiments - 10 CFR 72.48.

(47)

Calvert Cliffs Nuclear Power Plant, Unit Nos. I and 2, License Nos. DPR-53 and DPR-69, Amendment No. 217 for Unit No.1, Amendment No.194 for Unit No. 2.

i 32 3

January 1 - December 31,1996 Docket Nos. 50-317/318 APPENDIX A Appendix A contains information concerning the environmental samples which were collected during the period January 1,1996 to December 31,1996.

Sample locations and specific information about individual locations for the CCNPP Radiological Environmental Monitoring Program are given in Table A-1. Figure A-1 shows the location of the Calvert Cliffs Nuclear Power Plant in relation to Southern Maryland and the Chesapeake Bay.

Figures A-2 and A-3 show the locations of the power plant sampling sites in relation to the plant site at different degrees of detail.

Sample locations and specific information about individual locations for the ISFSI radiological environmental monitoring program are given in Table A-2. Figures A-4 and A-5 show the locations of the ISFSI sampling sites in relation to the plant site at different degrees of detail.

33

i January 1 - December 31,1996 i

Docket Nos. 50-317/318 i

(LEFT BLANK) 6 34

January 1 - Dec mber 31,1996 Docket Nos. 50-317/318 TABLE OF CONTENTS - SAMPLING LOCATIONS I..

Table Title Page 7

It

~ A-1 Locations of Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant............................................................................ 37 A-2 Locations Of Environmental Sampling Stations for the Independent Spent Fuel Storage Installation At Calvert Cliffs................................................................... 43 6

A Figure Title Page A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs Nuclear Power Phmt..................................................................... 3 8 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations Scale 1"=1.35km................................................................................................................39 A-3 Calvert Cliffs Nuclear Power Plant Sampling. Locations Scale 1"=4.0km............................................................................................................41 A-4 Independent Spent Fuel Storage installation S am pl i n g L o cati o n s..........................................................................................................

I A-5 Enlarged Map of the Independent Spent Fuel Storage Installation S ampl in g Locati o n s................................................................................................ 4 5 J

35

January 1 - December 31,1996 d

Docket Nos. 50-317/318 r

l (LEFT BLANK) a 1

h 6

5 I.

36 1

- - - - ^- - - - - -. _ _ _ _. _ _ _ _ _ _, _, _ _ _ _ _ _ _ _

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE A-1 Locations of Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant i

Distance' Direction' Station i Description (Kilometers)

(Sector)

I A1

,' On Site before Entrance to Camp Conoy 0.7 S

2 A2 l Camp Conoy at Emergency Siren 2.5 SSE A3

- Bay Breeze Road 2.6 SE A4 Route 765 Lusby 2.9 SSW A5 Emergency Operations Facility (EOF) 19.3 WNW DR1 On Site along Cliffs 0.6 NW DR2 Route 765, Auto Dump 2.7 i

WNW DR3 l Route 765, Giovanni's Tavem (Knotty Pine) 2.3 l

W DR4 l Route 765, across from White Sands Drive 2.0 l

WSW DR5 i Route 765, St. John's Creek l

2.4 i

SW DR6 Route 765 Lusby 2.9 SSW 2

DR7 On Site before Entrance to Camp Conoy 0.7 S

DR8 Camp Conoy at Emergency Siren 2.5 SSE DR9 j Bay Breeze Road 2.6 SE DR10 i Calvert Seach Rd. and Decatur Street 6.4 NW DR11 l Dirt road off Mackall & Parran Roads 6.6 WNW DR12 l Mackall and Bowen Roads 6.7 W

DRl3 i Mackall Rd. near Wallville 6.1 WSW DR14 i Rodney Point 6.4 SW DR15 Mill Bridge and Tumer Roads 6.2 SSW DR16 Across from A 3 peal School 6.5 S

DR17 Cove Point anc. Little Cove Point Roads 5.9 SSE DR18 Cove Point 7.1 SE DRl9 Long Beach 4.4 l

NW DR20 On Site near shore 0.4 j

NNW DR21 Emergency Operations Facility (EOF) 19.3 l

WNW DR22 Solomons Island 12.5 S

DR23 Taylors Island, Carpenter's Property 12.6 ENE i

lal,2 Discharge Area i

0.3 N

la3 Camp Conoy i

0.9 E

la4.5 Patuxent River N/A N/A la6 l Kenwood Beach l

10.7 NNW i

Ibl.2,3 i Garden Off Bay Breeze Road 2.6 SSE Ib4.5.6 On Site before Entrance to Camp Conoy 0.7 S

lb7.8.9 Emergency Operations Facility (EOF) 19.3 WNW Wal

- Intake Area 0.2 NNE Wa2 Discharge Area 0.3 N

i Wbl

! Shoreline at Barge Rd.

0.6 ESE i

' Distance and direction from the central point between the two containment buildings.

2 Common to both the REMP and ISFSI monitoring program 37

January 1 - Dcccmber 31,1996 Docket Nos. 50-317/318 FIGURE A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs Nuclear Power Plant v.rn ~rr

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January 1 - December 31,1996 Docket Nos. 50-317/318 (LEFT BLANK) b f

1 42

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE A-2 Locations of Environmental Sampling Stations for the Independent Spent Fuel Storage Installation at Calvert Cliffs Station Description Distance' Direction' A13 On Site before Entrance to Camp Conoy 0.7 SE SFA1 Meteorological Station 0.4 NW SFA2 CCNPP Visitors Center 0.7 NNE SFA3 NNW ofISFSI 0.1 NNW SFA4 South oflSFSI 0.1 S

SFDR1 Collocated with Plant TLD #159 0.1 SW SFDR2 Collocated with Plant TLD #160 0.1 N

SFDR3 Collocated with Plant TLD #161 0.1 NNE l

SFDR4 Collocated with Plant TLD #162

<0.1 NE

)

SFDR5 Collocated with Plant TLD #163

<0.1 E

i SFDR6 Collocated with Plant TLD #164 0.1 ESE SFDR7 CCNPP Visitors Center 0.7 NNE J

SFDR8 North Northwest ofISFSI 0.1 NNW SFDR9 South ofISFSI 0.1 S

SFDR10 NNW ofISFS!

0.1 NNW SFDR11 WNW ofISFSI 0.1 WNW SFDR12 West ofISFSI

<0.1 W

i SFDR13 SSW ofISFSI

<0.1 SSW i

SFDR14 SSE oflSFSI 0.1 SSE 1

4 SFDR15

} ENEoflSFSI

<0.1 ENE I

SFDR16 WSW ofISFSI

<0.1 WSW DR7' On Site before Entrance to Camp Conoy 0.7 SE DR30' Meteorological Station 0.4 NW SFbl Meteorological Station 0.4 NW SFb2 CCNPP Visitors Center 0.7 NNE SFb3 NNW ofISFSI 0.1 NNW SFb4 South ofISFSI 0.1 S

SFb5 On Site before Entrance to Camp Conoy 0.7 SE SFS1 Meteorological Station 0.4 NW SFS2 CCNPP Visitors Center 0.7 NNE SFS3 NNW ofISFSI 0.1 NNW SFS4 South ofISFSI 0.1 S

i SFS5 On Site before Entrance to Camp Conoy 0.7 SE j

' Distance and direction from the central point of the Independent Spent Fuel Storage Installation.

2Common to both the REMP and ISFSIMP.

'Formerly, part of the historical non-Technical Specification monitoring program. DR30 became a Tech Spec location when it was designated part of the ISFSI monitoring program.

43

l January 1 - December 31,1996 Docket Nos. 50-317/318 FIGURE A-4 Independent Spent Fuel Storage Installation Sampling Locations NNE N

NNW

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1 1

January 1 - December 31,1996 Docket Nos. 50-317/318 l

l-FIGURE A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations l

O DR30

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January 1 - December 31 1996 0

Docket Nos. 50-317/318 l

F 4

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i (LEFT BLANK) i I

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'l 46

l January 1 - December 31,1996 Docket Nos. 50-317/318 i

APPENDIX B Appendix B is a presentation of the analytical results of the 1996 Calvert Cliffs Nuclear Power i

Plant and the Independent Spent Fuel Storage Installation environmental monitonng programs.

)

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47

January 1 - December 31,1996

. Docket Nos. 50-317/318 (1. EFT BLANK) i I

(

i 48

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1 i

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~ January 1 - December 31,1996 -

Docket Nos. 50-317/318 k

TABLE OF CONTENTS - ANALYTICAL RESULTS t

Table Title Page t

B-1 Concentrations of Tritium and Gamma Emitters in Bay Water........................................ 50 i

t B-2 Concentrations of Gamma Emitters in the Flesh of Edible Fish..................................... 51 -

i i

I B-3 Concentrations of Gamma Emitters in Oyster Samples.................................................. 52 B-4 Concentrations of Gamma Emitters in Shoreline Sediment.............................................. 53 i

B-5 Concentrations of lodine-131 ' in Filtered Air.................................................................... 54 i

-B-6 Concentrations of Beta Emitters in Air Particulates....................................................... 56 '

l 4

B-7

. Concentrations of Gamma Emitters in Air Particulates.................................................... 60 i

i

~ B-8ao Concentration of Gamma Emitters in Vegetation Samples..........................................-... 61.

i B 8b Concentrations of Gamma Emitters In Vegetation from Loca tions Aro und the I S F S I............................................................................................. 63 B-9 Concentrations of Gamma Emitters In Soil Samples from Locations Around the I S FS I.................................................................................... 64

.B-10 Typical M DA Ranges for Gamma Spectrometry............................................................ 65 B-11 Typical LL Ds for Gamma Spectrometry......................................................................... 66 B-12 D i re c t R a d i at i o n............................................................................................................

1 4

I i

I v

i

'I 49

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE B-1 Concentration of Tritium and Gamma Emitters in Bay Water (Results in units of pCi/L +/- 20) j Sample Sample Code Date H-3 Gamma Emitters Wa1 -

1/15/96 Intake Area 2/15/96 3/15/96 3/31/96 36 +/- 33 4/15/96 i

I 5/15/96 6/15/96

)

6/30/96

<36 7/15/96 8/15/96 9/15/96 9/30/96

<38 10/15/96 11/15/96 12/15/96 12/31/96

<37 Wa2 1/15/96 Discharge Area 2/15/96 3/15/96 3/31/96 81 +/- 34 4/15/96 5/15/96 6/15/96 6/30/96 90 +/- 35 7/15/96 8/15/96 9/15/96 9/30/96 112 +/- 37 10/15/96 11/15/96 12/15/96 12/31/96 84 +/- 37

• Non-Natural Gamma Emitters < MDA

' Quanctly composite of monthly samples _

50

January 1 - December 31,1996 Docket Nos. 50-317/318 TAILLE 11-2 Concentration of Gamma Emitters in the Flesh of Edible Fish (Results in units of pCi/kg (wet) +/- 2a)

Sample SAMPLE CODE Date Sample Type Gamma Emitters la9 10/6/96 Bluefish Discharge Area la2 10/2/96 Striped bass Discharge Area la4 '

10/18/96 Bluefish Patuxent River la5 '

10/11/96 Striped bass Patuxent River i

l i

I l

• Non-Natural Gamma Emitters < MDA

' Control Location 51

.l

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE B-3 Concentration of Gamma Emitters in Oyster Samples (Results in units of pCi/kg (wet) +/- 20)

Sample SAMPLE CODE Date Ag110m Gamma Emitters la3 3/25/96 38 +/- 10 Camp Conoy 6/3/96 44 +/- 14 t

8/19/96 32 +/- 8 10/2/96 20 +/- 7 Ia6 '

3/26/96 2

Kenwood Beach 6/6/96 2

8/20/96 2

10/2/96 i-b

• Non-Natural Gamma Emitters < MDA

' Control Location -

1. This isotope < MDA 52

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE 11-4 Concentration of Gamma Emitters in Shoreline Sediment (Results in units of pCi/kg (dry) +/- 2a)

Sample SAMPLE CODE Date Gamma Emitters Wbi 5/17/96 Shoreline at Barge Rd.

10/31/96 i

P i

f 4

• Non-Natural Gamma Emitters < MDA

$3

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE 11-5 Concentration ofIodine-131 in Filtered Air (Results in units of 10 pCi/m' +/- 2a)

A1 A2 A3 A4 Entrance to Camp Conoy Bay Breeze Route 765 at A5' Start Date Stop Date Camp Conoy Siren Rd Lusby EOF _

1/2/96 1/11/96 1/11/96 1/16/06 1/16/96 1/22/96 1/22/96 1/29/96 1/29/96 2/5/96 2/5/96 2/12/96 2/12/96 2/20/96 2/20/96 2/26!96 2/26/96 3/4/96 3/4/96 3/11/96 3/11/96 3/18/96 3/18/96 3/25/96 3/25/96 4/1/96 4/1/96 4/8/96 i

I 4/8/96 4/15/96 4/15/96 4/22/96 4/22/96 4/29/96 4/29/96 5/6/96 5/6/96 5/13/96 5/13/96 5/20/96 5/20/96 5/28/96 5/28/96 6/3/96 l

6/3/96 6/10/96 6/10/96 6/17/96 6/17/96 6/24/96 6/24/96 7/1/96 7/1/96 7/8/96 7/8/96 7/15/96 2

+

7/15/96 7/22/96 7/22/06 7/29/96

< MDA

' Control 1.ocation

• Sampler mall' unction low Dow l

54

January 1 - December 31,1996 Docket Nos. 50-317/318 TAIILE 11 Continued Concentration oflodine-131 in Filtered Air (Results in units of 10-3 pCi/m +/- 20) 3 A1 A2 A3 A4 Entrance to Camp Conoy Bay Breeze Route 765 at A5' Start Date Stop Date Camp Conoy Siren Rd Lusby EOF 7/29/96 8/5/96 8/5/96 8/12/96 8/12/96 8/19/96 8/19/96 8/26/96 8/26/96 9/3/96 9/3/96 9/9/96 9/9/96 9/16/96 9/16/96 9/23/96 9/23/96 9/30/96 9/30/96 10/7/96 10/7/96 10/14/96 i

10/14/96 10/21/96 10/21/96 10/28/96 10/28/96 11/4/96 11/4/06 11/11/96 11/11/96 11/18/9G 11/18/96 11/25/96 11/25/96 12/2/96 12/2/96 12/9/96 12/9/96 12/16/96 i

12/16/96 12/23/96 i

i 12/23/96 12/30/96

• < MDA

' Control Location l

$5

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE H-6 Concentration ofIleta Emitters in Air Particulates (Results in units of10 2 pCi/m +/- 2a) 3 A1 A2 A3 A4 Entrance to Camp Conoy Bay Breeze Route 765 at A5' Start Date Stop Date Camp Conoy Siren Rd Lusby EOF 1/2/96 1/11/96 2.2 +/- 0.2 2.5 +/- 0.2 1.8 +/- 0.2 2.4 +/- 0.2 2.5 +/- 0.2 1/11/96 1/16/96 1.9 +/- 0.3 2.5 +/- 0.4 1.2 +/- 0.3 2.2 +/- 0.4 2.8 +/- 0.4 1/16/96 1/22/96 1.5 +/- 0.2 1.4 +/ 0.2 1.1 +/- 0.2 1.6 +/- 0.2 1.8 +/- 0.3 1/22/96 1/29/96

.1.6 +/- 0.2 1.7 +/- 0.3 1.0 +/- 0.2 1.3 +/- 0.2 1.4 +/- 0.2 1/29/96 2/5/96 2.3 +/- 0.2 3.9 +/- 0.5 1.9 +/- 0.2 2.3 +/- 0.3 2.5 +/- 0.3 2/5/96 2/12/96 1.9 +/- 0.2 2.0 +/- 0.2 1.5 +/- 0.2 1.8 +/- 0.3 1.6 +/- 0.2 2/12/96 2/20/96 1.4 +/- 0 2 1.2 +/- 0.2 1.5 +/- 0.2 1.7 +/- 0.2 2/20/96 2/26/96 0.7 +/- 0.2 0.8 +/- 0.3 0.4 +/- 0.2 1.0 +/- 0.3 1.2 +/- 0.3 2/26/96 3/4/96 1.5 +/- 0.2 1.5 +/- 0.2 0.9 +/- 0.2 2.3 +/- 0.3 1.7 +/- 0.2 3/4/96 3/11/96 1.6 +/- 0.2 1.6 +/- 0.2 1.4 +/- 0.2 1.6 +/- 0.2 1.7 +/- 0.3 3/11/96 3/18/96 1.3 +/ 0.2 1.5 +/- 0.2 1.5 +/- 0.2 1.8 +/- 0.2 1.3 +/- 0.3 3/18/96 3/25/96 1.4 +/- 0.2 1.4 +/- 0.2 1.2 +/- 0.2 1.5 +/- 0.3 1.8 +/- 0.3 3/25/96 4/1/96 1.2 +/- 0.2 1.1 +/- 0.2 1.0 +/- 0.2 1.2 +/- 0.2 0.8 +/- 0.2 4/1/96 4/8/96 1.7 +/- 0,2 1.3 +/- 0.2 1.5 +/- 0.2 2.0 +/ 0.3 2.1 +/- 0.2 4/8/96 4/15/96 1.5 +/- 0.2 1.5 +/- 0.3 1.3 +/- 0.2 1.4 +/- 0.2 1.6 +/- 0.2 4/15/06 4/22/96 1.7 +/- 0.2 2.2 +/- 0.3 1.9 +/- 0.3 1.5 +/- 0.2 1.9 +/- 0.2 4/22/96 4/29/96 1.5 +/- 0.2 1.7 +/- 0.3 1.9 +/- 0.3 1.6 +/- 0.2 1.6 +/- 0.2 4/29/96 5/6/96 0.8 +/- 0.2 0.9 + /- 0.3 0.9 +/- 0.3 0.9 +/- 0.2 5/6/96 5/13/96 0.8 +/- 0.3 0.6 +/- 0.3 0.7 +/- 0.2 0.7 +/- 0.2 0.8 +/- 0.2 5/13/96 5/20/96 1.1 +/- 0.2 1.1 +/- 0.3 1.3 +/- 0.3 1.1 +/- 0.3 1.1 +/- 0.2 5/20/96 5/28/96 1.3 +/- 0.2 1.3 +/- 0.3 1.2 +/- 0.3 1.3 +/- 0.2 1.2 +/- 0.2 5/28/96 6/3/96 1.0 +/- 0.3 0.7 +/- 0.3 1.0 +/- 0.3 0.7 +/- 0.2 1.0 + '- 0.3 6/3/96 6/10/96 1.0 +/- 0.2 1.1 +/- 0.3 1.4 +/- 0.3 1.0 +/- 0.2 0.9 +/- 0.2 6/10/96 6/17/96 1.4 +/- 0.3 0.9 +/ 0.3 1.3 +/- 0.3 1.2 +/- 0.2 1.8 +/- 0.2 6/17/96 6/24/96 1.3 +/- 0.2 0.6 +/- 0.3 1.1 +/- 0.2 1.1 +/- 0.2 1.2 +/- 0.2 6/24/96 7/1/96 0.8 +/ 0.2 0.4 +/- 0.3 0.8 +/- 0.3 1.0 +/- 0.2 1.3 +/- 0.2 7/1/96 7/8/96 1.6 +/- 0.2 0.3 +/- 0.2 1.1 +/- 0.3 1.6 +/- 0.3 2.0 +/- 0.3 7/8/96 7/15/96 1.1 +/- 0.2 0.5 +/- 0.4 0.9 +/- 0.3 1.2 +/- 0.2 1.5 +/- 0.3 7/15/96 7/22/96 1.7 +/- 0.3 0.9 +/- 0.2 1.5 +/- 0.2 1.5 +/- 0.2 7/22/96 7/29/96 1.3 +/- 0.2 0.9 +/- 0.2 0.6 +/- 0.2 0.9 +/- 0.2 18 d- 0.2 7/29/96 8/5/96 1.2 +/ 0.2 0.8 +/- 0.2 0.8 +/- 0.3 0.8 +/- 0.2 1.5 +/- 0.2 8/5/96 8/12/96 1.9 +/- 0.3 1.5 +/- 0.2 2.3 +/- 0.3 1.6 +/- 0.2 2.0 +/- 0.3 8/12/96 8/19/96 1.6 +/- 0.2 1.1 +/- 0.2 1.4 +/- 0.3 1.2 +/- 0.2 2.0 +/- 0.2 8/19/96 8/26/96 2.6 +/- 0.3 1.6 +/- 0.2 2.8 +/- 0.3 1.7 +/- 0 2 3.7 +/- 0.3 8/26/96 9/3/96 2.3 +/- 0.2 1.5 +/- 0.2 1.5 +/- 0.2 1.7 +/- 0.2 2.4 +/- 0.3

~

' Control Location

' Sampler malfunctionlow flow i

56

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE 11 Continued Concentration ofIleta Emitters in Air Particulates (Results in units of 10 2 pCi/m' +/- 2a)

A1 A2 A3 A4 Entrance to Camp Conoy Bay Breeze Route 765 at A5' Start Date Stop Date Camp Conoy Siren Rd Lusby EOF 9/3/96 9/9/96 1.5 +/- 0.3 1.2 +/- 0.3 1.2 +/- 0.2 1.3 +/- 0.3 1.9 +/- 0.3 9/9/96 9/16/96 1.4 +/- 0.2 1.1 +/- 0.2 1.34/-0.2 1.3 +/- 0.2 1.8 +/- 0.2 9/16/96 9/23/96 1.7 +/- 0.2 1.5 +/- 0.3 1.3 +/- 0.2 1.6 +/- 0.2 2.5 +/- 0.3 9/23/96 9/30/96 1.6 +/- 0.2 1.4 +/- 0.2 1.1 +/- 0.2 1.3 +/- 0.3 1.9 +/- 0.3 9/30/96 10/7/96 1.8 +/- 0.2 1.1 +/- 0.2 1.5 +/- 0.2 1.6 +/- 0.3 1.9 +/- 0.3 10/7/96 10/14/96 1.7 +/- 0.3 1.3 +/- 0.2 1.4 +/- 0.2 1.4 +/- 0.2 1.3 +/- 0.2 10/14/96 10/21/96 1.7 +/- 0.2 1.3 +/- 0.2 1.5 +/- 0.2 1.7 +/- 0.2 1.8 +/- 0.3 10/21/96 10/28/96 2.1 +/- 0.3 1.7 +/- 0.2 1.5 +/- 0.2 1.9 +/- 0.2 2,3 +/- 0.3 10/28/96 11/4/96 2.0 +/- 0.2 1.4 +/- 0.2 1.7 +/- 0.2 2.1 +/- 0.3 2.3 +/- 0.3 11/4/96 11/11/96 1.2 +/- 0.2 1.1 +/- 0.2 0.9 +/- 0.2 1.0 +/- 0.2 1.4 +/- 0.3 11/11/96 11/18/96 1.3 +/- 0.3 1.0 +/- 0.2 1.1 +/- 0.2 1.3 +/- 0.2 1.6 +/- 0.3 11/18/96 11/25/96 2.0 +/- 0.3 1.7 +/- 0.3 2.0 +/- 0.3 1.3 +/- 0.2 2.0 +/- 0.3 11/25/96 12/2/96 1.1 +/- 0.2 0.9 +/- 0.2 0.9 +/- 0.2 1.3 +/- 0.2 1.4 +/- 0.3 12/2/96 12/9/96 1.5 +/- 0.2 1.2 +/- 0.2 1.1 +/- 0.2 1.3 +/- 0.3 1.8 +/- 0.4 12/9/96 12/16/96 0.8 +/- 0.2 0.9 +/- 0.2 0.8 +/- 0.2 1.0 +/ 0.2 1.7 +/- 0.3 12/16/96 12/23/96 1.4 +/- 0.3 1.2 +/- 0.2 1.2 +/- 0 2 1.3 +/- 0.3 1.7 +/- 0.4 i

12/23/96 12/30/96 1.6 +/- 0.3 1.2 +/- 0.2 1.4 +/- 0.2 1.8 +/- 0.3 2.2 +/- 0.3 i

i s

' Control Location i

57

January 1 - De'cember 31,1996 Docket Nos. 50-317/318 TAllLE Il Continued Concentration ofIleta Emitters in Air Particulates (Results in units of 10-2 pCi/m' +/- 2a)

SFA3 SFA1 SFA2' NNW Corner of SFA4 Start Date Stop Date MET Station Visitors Center ISFSI S corner of ISFSI 1/2/96 1/11/96 2.1 +/- 0.2 2.4 +/ 0.2 2.3 +/- 0.2 2.8 +/- 0.2 1/11/96 1/16/96 2.0 +/- 0.3 3.2 +/- 0.4 2.5 +/- 0.4 2.5 +/- 0.4 1/16/96 1/22/96 1.3 +/- 0.2 2.0 +/- 0.4 1.5 +/- 0.3 1.7 +/ 0.3 1/22/96 1/29/96 1.2 +/- 0.2 1.6 +/- 0.3 1.4 +/- 0.2 1.5 +/- 0.2 1/29/96 2/5/96 2.3 +/- 0.2 3.1 +/- 0.3 2.5 +/- 0.3 2.8 +/- 0.3 2/5/96 2/12/96 1.9 +/- 0.2 2.3 +/- 0.3 2.0 +/- 0.2 2.3 +/- 0.3 2/12/96 2/20/96 1.4 +/- 0.2 2.0 +/- 0.3 1.5 +/- 0.2 1.7 +/- 0.2 2/20/96 2/26/96 0.7 +/- 0.2 1.3 +/- 0.3 0.5 +/- 0.2 1,1 +/- 0.3 2/26/96 3/4/96 1.9 +/- 0.3 1.3 +/- 0.2 0.5 +/- 0.2 2.4 +/- 0.3 3/4/96 3/11/96 1.3 +/- 0.2 1.8 +/- 0.2 1.8 +/- 0.3 1.9 +/- 0.2 '

3/11/96 3/18/96 1.4 +/- 0.2 1.4 +/- 0.2 1.5 +/- 0.2 2.2 +/- 0.3 3/18/96 3/25/96 1.9 +/- 0.3 1.3 +/- 0.2 1.5 +/- 0.2 1.6 +/- 0.2 3/25/96 4/1/96 1.0 +/- 0.2 1.0 +/- 0.2 1.3 +/- 0.2 1.4 +/- 0.2 4/1/96 4/8/96 1.6 +/- 0.2 1.6 +/- 0.2 1.9 +/- 0.2 2.0 +/- 0.3 4/8/96 4/15/96 1.2 +/- 0.2 1.4 +/- 0.2 1.4 +/- 0.2 1.7 +/- 0.3 4/15/96 4/22/96 1.3 +/- 0.2 1.8 +/- 0.2 1.6 +/- 0.2 1.5 +/- 0.2 4/22/96 4/29/96 1.3 +/- 0.2 1.7 +/- 0.2 1.4 +/- 0.2 1.2 +/- 0.2 4/29/96 5/6/96 0.8 +/- 0.2 1.0 +/- 0.2 1.0 +/- 0.2 0.8 +/- 0.2 5/6/96 5/13/96 0.6 +/- 0.2 0.8 +/- 0.2 0.8 +/- 0.2 0.6 +/- 0.2 5/13/96 5/20/96 1.4 +/- 0.2 1.3 +/- 0.2 1.3 +/- 0.3 1.0 +/- 0.2 5/20/06 5/28/96 1.0 +/- 0.2 1.1 +/- 0.2 1.5 +/- 0.2 0.8 +/- 0.2 5/28/96 6/3/96 0.8 +/- 0.2 1.0 +/- 0.2 0.9 +/- 0.2 0.7 +/- 0.2 6/3/96 6/10/96 1.1 +/- 0.2 1.1 +/- 0.2 1.0 +/- 0.2 0.9 +/- 0.2 6/10/96 6/17/96 1.4 +/- 0.2 1.5 +/- 0.2 1.4 +/- 0.2 1.2 +/- 0.2 6/17/96 6/24/96 1.3 +/- 0.2 1.2 +/- 0.2 1.1 +/- 0.2 0.9 +/- 0.2 6/24/96 7/1/96 0.9 +/- 0.2 0.9 +/- 0.2 0.8 +/- 0.2 1.0 +/- 0.2 7/1/96 7/8/96 1.5 +/- 0.2 1.7 +/- 0.3 1.4 +/- 0.2 1.4 +/- 0.2 7/8/96 7/15/96 1.1 +/- 0.2 1.4 +/- 0.2 1.2 +/- 0.2 0.9 +/- 0.2 7/15/96 7/22/96 1.2 +/ 0.2 1.6 +/- 0.2 1.6 +/- 0.2 1.3 +/- 0.2 7/22/96 7/29/96 1.3 +/- 0.2 1.4 +/- 0.2 1.5 +/- 0.2 1.1 +/- 0.2 7/29/96 8/5/96 1.2 +/- 0.2 1.2 +/- 0.2 1.4 +/- 0.2 1.1 +/- 0.2 8/5/96 8/12/96 1.6 +/ 0 2 1.9 +/- 0.3 1.8 +/- 0.3 1.5 +/- 0.2 8/12/96 8/19/96 1.4 +/- 0.2 1.4 +/- 0.2 1.5 +/- 0.2 1.1 +/- 0.2 8/19/96 8/26/96 2.2 +/- 0.2 2.4 +/- 0.3 2.3 +/- 0.2 1.9 +/- 0.3 8/26/96 9/3/96 1.7 +/- 0 2 2.1 +/ 0.2 -

2.3 +/- 0.2 2.5 +/- 0.3

' Control Location 58

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE Il Continued Concentration of Heta Emitters in Air Particulates 3

(Results in units of 10-2 pCi/m +/- 20)

SFA3 SFA1 SFA2' NNW Corner of SFA4 Stari Date Stop Date MET Station Visitors Center ISFSI S corner of ISFSI 9/3/96 9/9/96 1.5 +/- 0.2 1.4 +/- 0.3 1.6 +/- 0.3 1.2 +/- 0.2 9/9/96 9/16/96 1.4 +/- 0.2 1.3 +/- 0.2 1.7 +/- 0.3 1.3 +/- 0.2 9/16/96 9/23/96 1.5 +/- 0.2 1.6 +/- 0.2 1.7 +/- 0.3 1.3 +/- 0.2 9/23/96 9/30/96 1.4 +/- 0.2 1.5 +/- 0.2 1.1 +/- 0.2 1.2 +/- 0.2 9/30/96 10/7/96 1.6 +/- 0.2 1.6 +/- 0.2 1.6 +/- 0.3 1.5 +/- 0.2 10/7/96 10/14/96 1.3 +/- 0.2 1.5 +/- 0.3 1.3 +/- 0.2 1.0 +/- 0.2 10/14/96 10/21/96 1.6 +/- 0.2 1.5 +/- 0.2 1.6 +/- 0.3 1.3 +/- 0.2 10/21/96 10/28/96 1.9 +/- 0.3 2.1 +/- 0.3 2.1 +/- 0.3 1.5 +/ 0.2 10/28/96 11/4/96 1.7 +/- 0.2 2.3 +/- 0.3 2.0 +/- 0.3 2.1 +/ 0.3 11/4/96 11/11/96 1.1 +/- 0.2 1.1 +/- 0.2 1.2 +/- 0.2 1.1 +/- 0.2 11/11/96 11/18/96 1.2 +/- 0.2 1.3 +/- 0.3 1.3 +/- 0.2 1.2 +/- 0.2 11/18/96 11/25/96 1.8 +/- 0.3 1.9 +/- 0.3 2.0 +/- 0.2 1.9 +/- 0.3 11/25/96 12/2/96 1.2 +/- 0.2 1.1 +/- 0.2 1.1 +/- 0.2 1.3 +/- 0.2 12/2/96 12/9/96 1.4 +/- 0.3 1.6 +/- 0.3 1.8 +/- 0.3 1.7 +/- 0.3 12/9/96 12/16/96 1.0 +/- 0.2 1.0 +/- 0.2 1.1 +/- 0.2 0.9 +/- 0 2 12/16/96 12/23/96 1.7 +/- 0.3 1.6 +/- 0.3 1.5 +/- 0.3 1.3 +/- 0.3 12/23/96 12/30/96 1.4 +/- 0.2 1.7 +/- 0.3 1.7 +/- 0.3 1.8 +/- 0.3

' Control Location 59

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE 11-7 Concentration of Gamma Emitters in Air Particulates (Results in units of 10 pCi/m +/- 20) 3 A1 A2 A4 Sample Entrance to Camp Conoy A3 Route 765 at A5' Date Camp Conoy Siren Bay Breeze Rd Lusby EOF 1/15/96 2/15/96 3/15/96 4/15/96 5/15/96 6/15/96 7/15/96 8/15/96 9/15/96 10/15/96 11/15/96 12/15/96 SFA3 Sample SFA1 SFA2' NNW Corner of SFA4 Date MET Station Visitors Center ISFSI S corner of ISFSI 1/15/96 2/15/96 3/15/96 4/15/96 5/15/96 6/15/96 7/15/96 8/15/96 9/15/96 10/15/96 11/15/96 12/15/96

• Non-Natural Gamma Emitters < MDA

' Control Location

January 1 - December 31,1996 Docket Nos. 50-317/318 TAI 1LE Il-Sa Concentration of Gamma Emitters in Vegetation Samples (Results in units of pCi/kg (wet) +/- 20)

Sample SAMPLE CODE Date Sample Type Gamma Emitters ib1 6/24/96 Collards Bay Breeze Rd 7/19/96 Collards 8/26/96 Collards 9/27/96 Collards 10/28/96 Collards lb2 6/24/96 Cabbage Bay Breeze Rd 7/19/96 Cabbage 8/26/96 Cabbage 9/27/96 Cabbage 10/28/96 Cabbage lb3 6/24/96 Brussel sprouts Bay Breeze Rd 7/19/96 Cauliflower 8/26/96 Cabbage 9/27/96 Cauliflower 10/28/96 Brussel sprouts lb4 6/24/96 Collards Camp Conoy Entrance 7/19/96 Collards 8/26/96 Collards 9/27/96 Collards 10/28/96 Collards lb5 6/24/96 Cabbage Camp Conoy Entrance 7/19/96 Cabbage 8/26/96 Cabbage 9/27/96 Cabbage 10/28/96 Cabbage 2

106 6/24/96 Brussel sprouts Camp Conoy Entrance 7/19/96 Cauliflower 8/26/96 Brussel sprouts 9/27/96 Cauliflower 10/28/96 Brussel sprouts

• Non-Natural Gamma Emitters < MDA 61

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE Il-Sa - Continued Concentration of Gamma Emitters in Vegetation Samples (Results in units of pCi/kg (wet) +/- 20)

Sample SAMPLE CODE Date Sample Type Gamma Emitters Ib7 '

6/24/96 Collards EOF 7/19/96 Collards 8/26/96 Collards 9/27/96 Collards 10/28/96 Collards lb8 '

6/24/96 Cabbage EOF 7/19/96 Cabbage 8/26/96 Cabbage 9/27/96 Cabbage 10/28/96 Cabbage lb9 '

6/24/96 Brussel sprouts EOF 7/19/96 Cauliflower 8/26/96 Brussel sprouts 9/27/96 Cauliflower 10/28/96 Brussel sprouts l

I i

• Non-Natural Gamma Emitters < MDA

' Control Location l

)

62

January 1 - December 31,1996 Docket Nos. 50-317/318 TAHLE H-8b

' Concentration of Gamma Emitters in Vegetation From Locations Around the IFSFI (Results in units of pCi/kg (wet) +/- 2a)

Sample Other SAMPLE CODE Date Cs-137 Gamma Emitters SFb1 3/18/96 MET Station 6/7/96 9/20/96 12/13/96 8

SFb2 3/18/96 50 +/- 18 Visitors Center 6/7/96 9/20/96 12/13/96 SFb3 3/18/96 196 +/- 27 NNW Corner of ISFSI 6/7/96 9/20/96 12/13/96 SFb4 3/18/96 South of ISFSI 6/7/90 9/20/96 j

SFb5 3/16/96 52 +/- 19 On Site before Entrance 6/7/96 65 +/- 20 Camp Conoy 9/20/96 182 +/- 29 12/13/96 l

1

• Non-Natural Gamma Emitters < MDA

' This Isotope < MDA

' Control Location 63

9 January 1 - December 31,1996 Docket Nos. 50-317/318 -

TABLE B-9 P

f

' Concentration of Gamma Emitters in Soil Samples From Locations Around the ISFSI (Results in units of pCi/kg (dry) +/- 2a)

Sample SAMPLE CODE Date Co-60 Cs-137 Gamma Emitters SFS1 3/18/96 MET station 6/7/96 9/20/96 12 +/- 8 12/13/96 SFS2' 3/18/96 124 +/- 25 Visitors Center 6/7/96 18 +/- 15 285 +/- 26 9/20/96 201 +/- 25 12/13/96 16 +/- 19 252 +/- 26 SFS3 3/18/96 765 +/- 46 NNW of ISFSI 6/7/96 168 +/- 20 9/20/96 1141 +/- 65 12/13/96 986 +/- 52 SFS4 3/18/96 56 +/- 17 South of ISFSI -

6/7/96 48 +/ 18 9/20/96 60 +/- 15 12/13/96 57 +/- 18 SFS5 3/18/96 683 +/- 39 Entrance to Camp 6/7/96 812 +/- 42 Conoy 9/20/96 293 +/- 20 12/13/96 275 +/- 20 l

l

)

• Non Natural Gamma Emitters < MDA

' Control Location 7

s 64

~

TAILLE I1-10 :.

~ Typical MDA Ranges for Gamma Spectrometry

.s

. Selev.cd Bay Water -

Fish Shellfish.

Shoreline.

Vegetation Soil

. Particulates ;

Nuclides -

pCill -

pCilg

-pCilg pCilkg pCi'kg '

. pCi/kg

_ 10-3pCi'ml

- Na-22 1.8 - 3.8 27 - 34 11-36 18 -31 18-51 19 - 88 1.2 - 7.7 f

_ Cr-Si : 35-119 - 155 81 -269 120 -'199

~ 97 - 190 117 - 541 13 - 98'

-hin-54 1.6 - 3.2

'13 - 22 10-30 17 15-36 17 - 70 '

1.2-9.2-I Co-58 1.5 - 3.5 19-24' 10 -17-39

_14 - 34 16 - 69 1.4 - 9.7 -

Fe-59 3.6 - 9.4 50 -69 27-76 32-53 31 - 88

. 33 - 153

-I3.6 - 24.9-

. Co 1.7 - 3.6 22 -28 12-33 18-29 IS - 45

.19 - 83

.1.1 - 7.3 '

i Zn-65 3.2 - 8.0

. 23 - 51 24 - 69 43 -55 34 - 92 47 - 160 2.2 - I6.7 -

}

Nb-95 I.7 - 4.3.

20-28 12 - 40 21-31 15 19-76

-I.9 - 13.7 Zr-95 2.8 - 6.0 32-41 22 - 59 28 27-58 27-122 2.5 - 15.8 -

?

Ru-106 13 - 26 I41-177 74 - 254 136 - 252 117-281

-127 - 736 8.0-56.4 Ag.I10m 1.5 - 2.8 15 - 18 9 - 27 14 - 25 12 - 33 16 0.9 - 16.6 -

Te-129m -

20-49 199-280 123 - 425 205 - 295 142-345 203 - %9..

2.2 - 133 -

I-13 {.

2 - 19 28 - 84 25 - 117 19 - 33 34 21 - 137 Cs-134

' l.8 - 2.6 14 - 16 10 - 25 19 -33 16 - 31 19 - 80 1.2 - 8.6 Cs-137 1.5 - 2.7 16-18 8-27 16 - 22 14 - 35 12 0.9 - 6.0 -

Ba-140 6-34 90 -183 58-242 64 - 101 44 - 114 70 - 334 13.2 - 105 i

Ce-144 9-14 44 - 51 30 -120 74 - 109 59-119 71-342-3.2-46.4 "

n.

1he Af DA range for 1-131 measured on silver zeolite cartridge is 2.5 x 10-3 to 9.7 x 10-3 pCi/m.3 t

65 P

m

. ---m.m

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l January 1 - December 31,1996 Docket Nos. 50-317/318 TAIILE 11-11 Typical LLDs for Gamma Spectrometry Selected Bay Water Fish Shelitish Sediment Particulate Precipitation Vegetation Soit Well Water Nuclides pCi/l pCikg pCiig pCilg 10-3pCi'm3 rCi1 rCiKs rCLKs rCi1 Na-22 2.9 22 22 24 2.9 2.9 35 24 2.9 Cr-51 17 88 88 110 12 17 162 110 17 Mn-54 2.4 17 17 18 2.1 2.4 27 18 2.4 Co-58 2.4 16 16 17 2.0 2.4 25 17 2.4 Fe-59 5.2 37 37 38 4.6 5.2 60 38 5.2 Co.60 2.8 22 22 21 2.7 2.8 33 21 2.8 Zn-65 5.6 23 23 54 2.8 5.6 66 54 5.6 Nb-95 2.2 15 15 18 I.9 2.2 25 18 2.2 Zr-95 3.8 27 27 29 3.3 3.8 44 29 3.8 Ru-106 20 135 135 146 17 20 223 146 20 Ag-110m 2.1 14 14 16 1.8 2.1 25 16 2.1 Te-129m 26 149 149 180 20 26 265 180 26 I-131 2.0 11 11 14 1.5' 2.0 20 14 2.0 Cs-134 2.2 15 15 20 1.9 2.2 24 20 2.2 Cs-137 2.3 15 15 17 1.8 2.3 27 17 2.3 Ba-140 7.3 48 48 54 6.1 7.3 80 54 7.3 La-140 4.1 26 26 25 3.4 4.1 41 25 4.1 Cc-144 12 43 43 75 5.5 12 to1 75 12 The 1.1.D for 1-13 I measured on silver 7eolite cartridge is 7.9x10-3 pCi/m3 for Nail Detector and 5.3 x10-3 pCi/m3 for Nal2 Detector 66

January 1 - December 31,1996 i

Docket Nos. 50-317/318 i

TABLE H-12 Direct Radiation j

(Results in Units of mR/30 days +/- 2a)

Sample Code Month Month DR01 JAN 3.91 4/- 0.18 FEB 4.41 +/- 0.80 On Site, along MAR 4.26 +/- 0.35 APR 4.45 +/- 0.42 Cliffs MAY 4.56 +/- 0.90 JUN 3.97 +/- 0.38 JUL 4.08 +/- 0.44 AUG 3.93 +/- 0.57 SEP 3.73 +/- 0.27 OCT 3.10 +/- 0.24 NOV 4.42 +/- 0.27 DEC 4.27 +/- 0.31 DR02 JAN 2.82 +/- 1.34 FEB 3.72 +/- 0.32 Route 765, Auto MAR 3.48 +/- 1.11 APR 3.79 +/- 0.38 Dump MAY 3.77 +/- 0.42 JUN 3.42 +/- 0.20 JUL 3.64 +/- 0.48 AUG 3.08 +/- 0.86 SEP 2.90 +/- 0.30 OCT 2.68 +/- 0.38 NOV 3.40 +/- 0.33 DEC 3.53 +/- 0.46 DR03 JAN 3.78 +/- 1.76 FEB 3.48 +/- 0.39 Route 765, MAR 3.70 +/- 0.48 APR 3.80 +/- 0.50 Giovanni's Tavern MAY 3.87 +/- 0.96 JUN 3.44 +/- 0.56 JUL 3.53 +/- 0.56 AUG 3.03 +/- 0.77 SEP 3.01 +/- 0.34 OCT 2.82 +/- 0.26 NOV 3.53 +/- 0.44 DEC 3.55 +/- 0.41 i

DR04 JAN 3.87 +/- 0.04 FEB 4.02 +/- 1.16 Route 765, across MAR 4.19 +/- 1.30 APR 4.03 +/- 0.10 from White Sands MAY 4.11 +/- 0.18 JUN 3.62 +/- 0.33 1

Drive JUL 3.92 +/- 0.70 AUG 3.47 +/- 0.06 SEP 3.46 +/- 0.54 OCT 3.33 +/- 0.44 i

NOV 4.08 +/- 0.67 DEC 4.21 +/- 0.47 DROS JAN 3.91 +/- 0.21 FEB 3.89 +/- 0.49 i

Route 765, MAR 3.82 +/- 0.42 APR 4.75 +/- 0.94 l

John's Creek MAY 4.24 +/- 0.17 JUN 3.68 +/- 0.80 JUL 4.02 +/- 0.32 AUG 3.94 +/- 0.57 SEP 3.29 +/- 0.39 OCT 3.46 +/- 0.33 NOV 3.96 +/- 0.47 DEC 4.06 +/- 0.23 DR06 JAN 3.43 +/- 0.51 FEB 3.81 +/- 0.45 Route 765 at MAR 3.50 +/- 0.58 APR 3.90 +/- 0.83 1

1.usby MAY 3.64 +/- 0.48 JUN 3.35 +/- 0.81 JUL 3.56 +/- 0.13 AUG 3.12 +/- 0.48 SEP 2.64 +/- 0.47 OCT 2.83 +/- 0.06 NOV 3.42 +/- 0.45 DEC 3.43 +/- 0.43 67

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE H Continued Direct Radiation (Results in Units of mR/30 days +/- 20)

Sample Code Month Month DR07 JAN 3.18 +/- 0.75 FEB 3.85 +/- 0.69

~ Entrance to MAR 3.49 +/- 0.38 APR 3.52 +/- 0.70 Camp Conoy MAY 4.11 +/- 1.31 JUN 3.53 +/- 0.87 JUL 3.33 +/- 0.37 AUG 3.48 +/- 0.06 SEP 2.93 +/- 0.44 OCT 2.88 +/- 0.26 NOV 3.34 +/- 0.55 DEC 3.51 +/- 0.58 DR08 JAN 3.79 +/- 0.90 FEB 4.51 +/- 2.09 Camp Conoy Rd MAR 4.44 +/- 0.57 APR 4.97 +/- 1.35 at Emergency MAY 5.26 +/- 1.05 JUN 4.70 +/- 1.19 Siren JUL 4.98 +/- 0.53 AUG 4.51 +/- 1.52 SEP 4.14 +/- 0.48 OCT 3.90 +/- 0.54 NOV 4.89 +/- 0.36 DEC 5.07 +/- 0.70 DR09 JAN 3.22 +/- 0.34 FEB 3.56 +/- 0.82 Bay Breeze Rd MAR 3.65 +/- 0.66 APR 3.70 +/- 0.96 MAY 3.85 +/- 1.34 JUN 3.43 +/- 0.58 JUL 4.27 +/- 2.24 AUG 3.49 +/- 0.51 SEP 3.27 +/- 0.3 I OCT 3.20 +/- 0.43 NOV 3.62 +/- 0.48 DEC 3.64 +/- 0.71 DR10 JAN 3.23 +/- 0.27 FEB 3.74 +/- 0.64 Decatur St. and MAR 3.35 +/- 0.40 APR 4.32 +/- 0.23 Calvert Beach MAY 3.72 +/- 0.39 JUN 3.45 +/- 0.23 Rd JUL 3.69 +/- 0.38 AUG 3.05 +/- 0.02 SEP 2.97 +/- 0.47 OCT 2.84 +/- 0.45 NOV 3.45 +/- 0.20 DEC 3.66 +/- 0.31 DR11 JAN 3.27 +/- 1.56 FEB 3.21 +/- 1.24 Dirt road off MAR 3.58 +/- 0.77 APR 4.48 +/- 1.17 Mackall & Parran MAY 4.09 +/- 0.90 JUN 3.52 +/- 0.46 Rd JUL 4.43 +/- 0.22 AUG 3.52 +/- 0.55 SEP 3.14 +/- 0.20 OCT 3.01 +/- 0.64 NOV 3.72 +/- 0.33 DEC 3.49 +/- 0.41 DR12 JAN 3.04 +/- 0.35 FEB 3.27 +/- 0.64 Mackall & Bowen MAR 3.41 +/- 0.83 APR 4.36 +/- 1.54 P.ds MAY 3.64 +/- 1.02 JUN 3.70 +/- 0.67 JUL 3.43 +/- 0.60 AUG 4.88 +/- 1.44 SEP 3.11 +/- 0.49 OCT 3.04 +/- 0.45 NOV 3.57 +/- 0.34 DEC 3.51 +/- 0.57 68

January 1 - December 31,1996 Docket Nos. 50-317/318 E B Continued Direct Radiation (Results in Units of mR/30 days +/- 20)

Sample Code Month Month DR13 JAN 3.63 +/- 0.07 FEB 4.15 +/- 1.14 Mackall Rd, near MAR 3.48 +/- 0.15 APR 3.56 +/- 0.98 Wallville MAY 3.99 +/- 0.40 JUN 3.67 +/- 0.43 JUL 3.59 +/- 0.61 A'UG 3.77 +/- 0.43 SEP 3.19 +/- 0.39 OCT 3.07 +/- 0.33 NOV 3.54 +/- 0.49 DEC 3.83 +/- 0.25 DRl4 JAN 3.79 +/- 0.89 FEB 4.14 +/- 1.02 Rodney Point MAR 4.10 +/- 0.04 APR 4.26 +/- 0.23 1

MAY 4.34 +/- 0.50 JUN 4.17 +/- 0.62 JUL 4.54 +/ 0.75 AUG 4.00 +/- 1.42 SEP 3.87 +/- 0.31 OCT 2.95 +/- 1.04 NOV 4.52 +/- 0.90 DEC 4.42 +/- 0.45 DR15 JAN 3.41 +/- 1.23 FEB 4.21 +/- 1.08 Mill Bridge &

MAR 3.54 +/- 0.49 APR 4.08 +/- 1.74 Turner Rds MAY 3.94 +/- 0.40 JUN 4.15 +/- 1.01 JUL 3.86 +/- 1.15 AUG 3.68 +/- 1.17 SEP 3.36 +/- 0.14 OCT 3.03 +/- 0.16 NOV 4.29 +/- 0.76 DEC 3.95 +/- 0.27 DR16 JAN 3.41 +/- 1.17 FEB 3.96 +/- 1.18 Across from MAR 3.62 +/- 0.80 APR 3.76 +/- 0.71 Appeal School MAY 4.16 +/- 1.15 JUN 3.33 +/- 0.54 JUL 3.55 +/- 0.58 AUG 3.31 +/- 0.17 SEP 3.19 +/- 0.36 OCT 2.86 +/- 0.40 NOV 3.66 +/- 0.57 DEC 3.89 +/- 0.46 DR17 JAN 3.47 +/- 0.47 FEB 3.85 +/- 0.92 Covc Point &

MAR 3.40 +/- 0.73 APR 3.87 +/- 0.23 Little Cove Point MAY 4.11 +/- 0.39 JUN 3.64 +/- 1.17 Rds JUL 3.65 +/- 0.61 AUG 3.41 +/- 0.69 SEP 3.59 +/- 1.00 OCT 3.02 +/- 0.08 NOV 4.35 +/- 0.29 DEC 3.81 +/- 0.47 DRl8 JAN 3.37 +/- 0.83 FEB 3.31 +/- 0.56 Cove Point MAR 3.38 +/- 0.17 APR 3.17 +/- 1.32 l

MAY 3.75 +/- 0.99 JUN 3.62 +/- 0.84

)

JUL 3.37 +/- 0.14 AUG 3.19 +/- 0.92 i

SEP 2.81 +/- 0.11 OCT 2.46 +/- 0.27 NOV 3.12 +/- 0.42 DEC 3.04 +/- 0.29 69

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE 11 Continued Direct Radiation (Results in Units of mR/30 days +/- 2a)

Sample Code Month Month DR19 JAN 3.50 +/- 0.40 FEB 3.83 +/- 0.45 Long Beach MAR 3.58 +/- 0.30 APR 3.52 +/- 0.15 MAY 3.66 +/- 0.12 JUN 3.38 +/- 0.92 JUL 3.54 +/- 0.32 AUG 3.22 +/- 0.39 SEP 3.00 +/- 0.58 OCT 2.80 +/- 0,19 NOV 3.39 +/- 0.52 DEC 3.50 +/- 0.53 DR20 JAN 4.67 +/- 0.83 FEB 4.30 +/- 0.44 On site, near MAR 4.13 +/- 0.50 APR 4.22 +/- 1.22 Shore MAY 4.57 +/- 0.70 JUN 4.03 +/- 0.29 JUL 4.55 +/- 0.85 AUG 3.78 +/- 0.87 SEP 4.07 +/- 0.31 OCT 3.30 +/- 0.31 NOV 4.33 +/- 0.44 DEC 4.44 +/- 0.37 DR21 '

JAN 3.89 +/- 0.44 FEB 4.I 1 +/- 1.20 EOF MAR 3.64 +/- 1.24 APR 3.43 +/- 0.54 MAY 4.41 +/- 0.91 JUN 3.91 +/- 1.43 JUL 4.32 +/- 0.98 AUG 3.57 +/- 1.32 SEP 3.58 +/- 0.45 OCT 3.36 +/- 0.50 NOV 4.22 +/- 0.65 DEC 4.24 +/- 0.31 DR22 '

JAN 2.89 +/- 0.99 FEB 4.27 +/- 3.09 Solomons Island MAR 2.90 +/- 0.45 APR 3.15 +/- 0.79 MAY 3.52 +/- 0.11 JUN 3.17 +/- 0.34 JUL 2.93 +/- 0.65 AUG 2.84 +/- 0.08 SEP 2.72 +/- 0.21 OCT 2.20 +/- 0.30 NOV 3.04 +/- 0.26 DEC 2.92 +/- 0.26 DR23 '

JAN 4.52 +/- 1.67 FEB 4.52 +/- 0.43 Taylors Island MAR 4.71 +/- 0.53 APR 4.92 +/- 0.52 MAY 5.72 +/- 0.46 JUN 4.97 +/- 1.28 JUL 4.71 +/- 0.54 AUG 5.43 +/- 1.82 SEP 4.72 +/- 0.54 OCT 3.79 +/- 0.50 NOV 5.38 +/- 0.18 DEC 4.91 +/- 0.49 DR30 JAN 3.92 +/- 0.45 FEB 3.96 +/- 0.51 MET Station MAR 4.00 +/- 0.78 APR 4.25 +/- 1.17 MAY 4.18 +/- 0.83 JUN 4.16 +/- 0.16 JUL 3.84 +/- 0.50 AUG 3.93 +/- 1.00 SEP 3.37 +/- 0.56 OCT 3.88 +/- 0.36 NOV 4.23 +/- 0.61 DEC 4.02 +/- 0.38

' Control 1.ocation 70

i January 1 - December 31,1996 Docket Nos. 50-317/318 '

TABLE B Continued Direct Radiation (Results in Units of mR/30 days +/- 2a) i Sample Code Month Month j

SFDR01 JAN 4.42 +/- 1.53 FEB 4.45 +/- 0.51 Collocated w/

MAR 4.87 +/- 0.10 APR 4.45 +/- 0.08 plant TLD #159 MAY 5.11 +/- 0.36 JUN 4.58 +/- 0.47 JUL 4.86 +/- 0.32 AUG 4.27 +/- 0.12 SEP 3.91 +/- 0.35 OCT 4.66 +/- 0.57 NOV 5.14 +/- 0.61 DEC 4.84 +/- 0.51 SFDR02 JAN 5.68 +/- 0.36 FEB 5.06 +/- 2.62 collocated w/

MAR 5.09 +/- 0.45 APR 5.09 +/- 2.37 plant TLD # 160 MAY 6.17 +/- 1.71 JUN 4.90 +/- 0.61 JUL 5.I3 +/- 0.08 AUG 5.20 +/- 1.53 SEP 4.86 +/- 0.36 OCT 5.01 +/- 0.55 NOV 6.10 +/- 0.55 DEC 5.67 +/- 0.79 SFDR03 JAN 4.11 +/- 0.30 FEB 4.74 +/- 0.74 Collocated w/

MAR 4.36 +/- 1.92 APR 5.50 +/- 0.71 plant TLD #16i MAY 5.06 +/- 0.72 JUN 4.90 +/- 1.31 JUL 5.28 +/- 2.08 AUG 5.06 +/- 1.63 SEP 4.54 +/- 0.86 OCT 5.62 +/- 0.94 NOV 6.31 +/- 0.42 DEC 6.01 +/- 0.57 SFDR04 JAN 4.52 +/- 0.31 FEB 5.74 +/- 4.06 Collocated w/

MAR 4.17 +/- 0.74 APR 5.77 +/- 2.38 plant TLD #162 MAY 4.16 +/- 0.36 3UN 4.85 +/- 1.66 JUL 3.98 +/- 0.47 AUG 4.52 +/- 0.55 SEP 4.20 +/- 0.73 OCT 4.88 +/- 0.75 NOV 5.22 +/- 0.38 DEC 5.30 +/- 0.35 SFDR05 JAN 4.10 +/- 0.98 FEB 4.62 +/- 2.38 Collocated w/

MAR 3.97 +/- 0.39 APR 4.42 +/- 0.90 plant TLD #163 MAY 4.40 +/- 0.93 JUN 4.53 +/- 0.08 JUL 4.30 +/- 1.06 AUG 4.19 +/ 0.81 SEP 3.42 +/- 0.30 OCT 3.70 +/- 0.36 NOV 4.41 +/- 0.46 DEC 4.11 +/- 0.37 SFDR06 JAN 4.30 +/- 2.01 FEB 6.54 +/- 1.08 Collocated w/

MAR 4.52 +/- 0.45 APR 5.51 +/- 1.49 plant TLD n164 MAY 4.94 +/- 0.82 JUN 4.37 +/- 0.40 JUL 4.99 +/- 1.30 AUG 3.95 +/- 0.62 SEP 3.96 +/- 0.40 OCT 4.45 +/- 0.62 NOV 4.74 +/- 0.47 DEC 4.56 +/- 0.54 71 i

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE B Continued Direct Radiation (Results in Units of mR/30 days +/- 2a)

Sample Code Month Month SFDR07 '

JAN 4.29 +/- 0.79 FEB 4.17 +/- 0.37 Visitors Center MAR 3.65 +/- 0.12 APR 4.58 +/- 0.88 MAY 5.07 +/- 0.29 JUN 3.98 +/- 0.32 JUL 4.76 +/- 0.54 AUG 3.76 +/- 0.81 SEP 3.84 +/- 0.38 OCT 3.91 +/- 0.39 NOV 4.36 +/- 1.62 DEC 4.05 +/- 0.42 SFDR08 JAN 6.03 +/- 2.40 FEB 6.04 +/- 3.77 NNW of MAR 5.56 +/- 1.61 APR 6.00 +/- 1.10 ISFS1 MAY 7.70 +/- 1.46 JUN 5.47 +/- 1.26 JUL 6.42 +/- 1.36 AUG 5.02 +/- 0.75 SEP 5.86 +/- 0.82 OCT 6.45 +/- 0.88 NOV 7.31 +/- 1.25 DEC 7.35 +/- 0.39 SFDR09 JAN 4.61 +/- 2.35 FEB 3.96 +/- 0.66 South ofISFSI MAR 3.55 +/- 0.70 APR 3.66 +/- 0.32 MAY 3.81 +/- 0.33 JUN 3.19 +/- 0.74 JUL 2.85 +/- 0.34 AUG 3.25 +/- 1.40 SEP 3.10 +/- 0.35 OCT 3.75 +/- 0.55 NOV 3.69 +/- 0.47 DEC 3.60 +/- 0.32 SFDRIO JAN 10.93 +/- 1.23 FEB 10.87 +/- 0.77 NNW ofISFSI MAR 10.89 +/- 2.60 APR 10.08 +/- 2.96 MAY l 1.02 +/- 2.97 JUN 10.46 +/- 1.37 JUL 8.71 +/- 2.29 AUG 9.48 +/- 1.55 SEP 9.76 +/- 0.48 OCT 12.09 +/- 1.66 NOV 13.45 +/. 2.00 DEC 13.55 +/- 2.04 SFDR11 JAN 6.06 +/- 1.35 FEB 6.10 +/- 2.67 WNW ISFSF MAR 6.01 +/- 1.46 APR 5.85 +/- 1.45 MAY 6.74 +/- 0.74 JUN 5.61 +/- 0.09 JUL 6.24 +/- 0.92 AUG 5.46 +/- 0.95 SEP 5.20 +/- 1.24 OCT 6.56 +/- 0.80 NOV 7.92 +/- 2.23 DEC 7.69 +/- 1.05 SFDR12 JAN 4.05 +/- 0.74 FEB 4.23 +/- 1.11 W ofISFSI MAR 3.84 +/- 0.86 APR 4.11 +/- 0.43 MAY 4.02 +/- 0.07 JUN 3.70 +/- 0.64 JUL 3.84 +/- 1.11 AUG 3.78 +/- 1.18 SEP 3.52 +/- 0.96 OCT 3.40 +/- 1.64 NOV 6.11 +/- 0.95 DEC 6.13 +/- 0.57

' Control Location 72

l l

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE B Continued Direct Radiation (Results in Units of mR/30 days +/- 2c)

Sample Code Month Month SFDR13 JAN 3.86 +/- 1.18 FEB 3.78 +/- 0.37 SSW oflSFSI MAR 3.99 +/- 1.47 APR 4.15 +/- 1.40 MAY 4.52 +/- 0.94 JUN 3.47 +/- 0.04 JUL 3.95 +/- 1.01 AUG 2.95 +/- 0.21 SEP 3.16 +/- 0.32 OCT 3.74 +/- 1.04 NOV 4.25 +/- 0.58 DEC 3.87 +/- 0.36 SFDR14 JAN 3.67 +/- 0.87 FEB 3.79 +/- 0.05 SSE ofISFSI MAR 3.96 +/- 0.64 APR 3.69 +/- 0.25 MAY 4.11 +/- 1.20 JUN 3.50 +/- 0.48 JUL 3.81 +/- 0.73 AUG 3.24 +/- 0.86 SEP 2.88 +/- 0.19 OCT 2.93 +/- 1.18 NOV 3.99 +/- 0.58 DEC 3.62 +/- 0.44 SFDR15 JAN 4.31 +/- 0.59 FEB 4.39 +/- 0.55 ENE ofISFSI MAR 4.00 +/- 1.61 APR 4.26 +/- 0.26 MAY 5.13 +/- 1.44 JUN 4.07 +/- 0.62 JUL 4.38 +/- 1.37 AUG 3.69 +/- 1.60 SEP 3.46 +/- 0.46 OCT 4.05 +/- 0.08 NOV 4.66 +/- 0.17 DEC 4.71 +/- 0.48 l

SFDR16 JAN 5.16 +/- 0.27 FEB 4.60 +/- 0.12 WSW ofISFSI MAR 4.92 +/- 0.01 APR 4.92 +/- 0.86 MAY 5.11 +/- 0.19 JUN 4.67 +/- 0.22 JUL 5.26 +/- 0.62 AUG 4.24 +/- 1.36 SEP 4.28 +/- 0.58 OCT 4.96 +/- 0.79 NOV 5.93 +/- 0.61 DEC 6.04 +/- 0.63 73

1 1

January 1 - December 31,1996 Docket Nos. 50-317/318 i

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(LEFT BLANK) i 8

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January 1 - December 31,1996 Docket Nos. 50-317/318 APPENDIX C Appendix C is a summary of BGE laboratory's quality assurance program. It consists of Table C-1 which is a compilation of the results of the laboratory's participation in the Analytics, Inc.

Radiological Environmental Cross-Check Program during the period January 1,1996 to December 31,1996. It also consists of Table C-2 and Table C-3 that together form a compilation of the results of the laboratory's participation in a quality assurance program with Duke Power Company's Radiological and Environmental Services during the same period. The Duke Power Company operating procedures pertinent to these analyses are described in reference 40.

All of the results contained in Table C-2 agree quite well with laboratory replicates and split samples submitted to Duke Power Company with the exception of soil sample splits collected on 3/18/96 and 6/7/96. Investigation concluded that differences in sample preparation between the BGE and Duke Power Company laboratories appears to explain the variation in results. When samples were reprepared in the same manner, agreement was obtained. These results are included in Table C-2 as " reanalysis."

75

V January 1 - December 31,1996 Docket Nos. 50-317/318 i

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January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page C-!

Results of Participation in Analytics Cross-Check Program for 1996.........

........ 79 C-2 Results of Quality Assurance Program for 1996........

.........81 C-3 Duke Power Company Typical MDAs for Gamma Spectrometry..........

.90 77 J

January 1 - December 31,1996 Docket Nos. 50-317/318 t

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January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE C-1 Results of Participation in Analytics Cross Check Program for 1996

~

Sample Sample Type isotope Reported Analytics' Date and Units Observed Laboratory's Results' Results*

3/12/96 Water-pCi/L H-3 3156190 29821149 3/12/96 Water-pCi/L Co-58 45*12 4812 Cs-134 39120 5813 Cs-137 61*32 64*3 Ce 141 81 50 8814 Zn-65 88126 9715 Cr-51 4121313 322116 hin-54 25114 3112 Fe-59 86151 83*4 Co-60 76i20 7614 I-131 29122 36*2 6'19/96 Water-pCi/L Co-58 154134 164*8 Cs-134 254126 294tl5 Cs-137 653*S6 724136 Ce 141 348182 379119

]

Zn-65 87*41 10215 j

Cr 51 8081452 995150 hin-54 503i48 530127 i

Fe-59 146152 137i7 Co-60 14l120 14817 6'19/96 Filter-pCi/ filter Beta 2612 26tl 6'19/96 Filter-pCi/ filter Co-58 165114 17219 Cs-134 256112 308115 Cs-137 714i39 759t38 Cc 141 386120 397*20 Zn-65 114*18 10715 Cr-51 9831116 1043i52

.Nin-54 570128 556t28 Fe-59 155*l4 14317 Co-60 15419 15618 79

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE C Continued Results of Participation in Analytics Cross Check Program for 1996 Sample Sample Type isotope Reported Analytics' Date and Units Observed Laboratory's Results Results 6/19/96 h1 ilk-pCi/L Co-58 83 22 93*5 Cs-134 147116 16618 Cs-137 364133 410121 Ce 141 210t48 215til Zn-65 59130 5813 Cr-51 5941298 563*28 hin-54 293*28 300115 Fe-59 85 39 77 4 Co-60 82il4 8414 9 26'96 Water-pCi/L 11-3 2452*87 22591113 9'26'96 Water-pCi/L Co-58 173138 17419 Cs 134 281 30 295115 Cs-137 223*39 22511I Ce141 436i50 423*21 Zn-65 90148 93*5 Cr-51 663*224 646*32 hin-54 257 41 239112 Fe-59 50 42 5013 Co-60 155124 151*8 I-131 34130 50t3 12 12/96 Water-pCi/L Co-58 118t32 11916 Cs-134 165126 17219 Cs-137 189136 191110 Cc 141 272*42 272114 Zn-65 88146 91t5 Cr 51 223i183 209110 hin-54 213i38 202110 Fe-59 64146 4812 Co-60 113t21 10815 1 131 27130 3912

• Laboratory precision (3 sigma) 80

January 1 - December 31,1946 Docket Nos. 50-317/318 TAllLE C-2 Ilesults of Quality Assurance Program for 1996 Sample Type Sample Type of Original Replicate Split

• And Location Date Analysis Analysis Analysis Analysis 10'* pCi/m' Air Filter -A l 1/22/96 Beta 1.5* 0.2 1.610.2 Air Filter A2 1/22/96 Heta 1.4i0.2 1.6io.2 Air Filter -A3 1/22/96 Beta 1.110.2 1.210.2 Air Filter -A4 1/22/96 Beta 1.610.2 1.7

• 0.2 Air Filter -A5 1/22/96 Beta 1.810.3 1.9+0.3 Air Filter -SFA i 1/22/96 Heta 1.3*0.2 1.410.2 Air Filter -SFA2 1/22'96 Deta 2.010.4 2.410.4 Air Filter -SFA3 1/22/96 Heta 1.5

• 0.3 1.610.3 Air Filter -SFA4 1/22/96 Beta 1.710.3 1.810.3 Air lodine-A i 1/22'96 1-131

<0.4

<0.4 Air lodine-A5 1/22 96 1 131

<0.8

<0.8 pCi/L Hay Water-Wal 1.'15 96 Gamma (MDA

<MDA

<MDA Hay Water-Wal 2-15 96 1ritium 81234 119*34

<41 10'2 pCi 'm' Air Fiher-Al 2/12 96 Ileta 1.920.2 1.910.2 Air Filter-A2 2'l2 96 Heta 2.010.2 1.7A0.2 Air Filter-A3 2'12 96 Beta 1.5 + 0.2 1.410 2 Air Filter-A4 2'12.96 Beta 1.810.2 1.810.3 Air Filter A5 2'12 46 Heta 1 620.2 1.610.3 Air Filter SFAl 2'12 46 Beta 1.910.2 I St0.2 Air Fiiter SFA2 2/12:96 Ileta 2.3 0.3

'. 2 0.4 Air Filter-SFA3 2'12 96 Beta 2.0 0.2 2.110.2 Air Filter-SFA4 2'12 96 Beta 2.210.3 2.220.3 Air lodine-A2 2'12 96 1 131

<0.5

<0.5 Air lodine A3 2'12 96 l-131 (0.4

<0.4

• Samples split with Duke Power Company, Radiological and F.nvironmental Services,ilunterville, NC. On the following table is a list of their 13 pical MDAs.

• • The nature of these samples precluded splitting them with Duke Power Company.

81

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1996 Sample Type Sample Type of Original Replicate Spht' And Location Date Analysis Analysis Analysis Analysis pCi/kg Soil SFS3 3/18/96 Cs-137 492142 (reanalysis

$47146 877 13 765*49)

Soil SFS5 3/18/96 Cs-137 337*32 (reanalysis 480140 657 8 683139)

Vegetation-SFb3 3/18/96 Cs-137 196*27 220*30 218:2 Vegetation SFb5 3/18/96 Cs-137 52*19 60116 78:3 10 pCi'm' Air Filter AI 3/11/96 Beta 1.6*0.2 1.6i0.2 Air Filter-A2 3/l1/96 Beta 1.6i0.2 1.410.2 Air Filter-A3 3/11/96 Beta 1.410.2 1.410.2 Air Filter-A4 3/l i/96 Ileta 1.610.2 1.510.2 Air Filter-A5 3/l1/96 Beta 1.7 0.3 1.7*0.3 Air Filter-SFA I 3/l I/96 Beta 1.3*0.2 1.3i-0.2 Air Filter SFA2 3/l1/96 Beta 1.810.2 1.8*0.2 Air Filter-SFA3 3/11/96 Ileta 1.810.2 1.710.2 Air Filter SFA4 3/l1/96 ileta 1.810.2 1.810.2 Air lodine A3 3/11/96 1-131

<0.4

<0.4 Air lodine-A4 3/11/96 l 13l

<0.6

<0.6 pCi'kg Oysters-la3 3/25/96 Ag-110m 38*l0 52115 35 2

)

' Samples split with Duke Power Company, Radiological and Environmental Services, Ilunterville, NC. On the following table is a list of their typical MDAs.

"The nature of these samples precluded splitting them with Duke Power Company.

)

82

January 1 - December 31,1996 Docket Nos. 50-317/318 TAlli,E C Continued llesults of Quality Assurance Program for 1996 Sample Iype Sample Type of Original Replicate Split

• And location Date Analysis Analysis Analysis Analysis 102 pCi/m' Air Filter-A1 4/8/96 Beta 1.710.2 1.610.2 Air Filter-A2 4/8/96 Beta 1.410.2 1.410.2 Air Filter-A3 4/8/96 Beta 1.510.2 1.510.2 Air Filter-A4 4/8/96 Beta 2.010.3 1.910.3 Air Filter-A5 4/8/96 Beta 2.110.2 2.l*0.2 Air Filter-SFA 1 4/8/96 Beta 1.610.2 1.5*0.2 Air Filter SFA2 4/8/96 Beta 1.610.2 1.5*0.2 Air Filter-SFA3 4/8/96 11 eta 1.910.2 1.7A0.2 Air Filter SFA4 4/8/96 Beta 2.0 t 0.2 2.210.3 Air lodine-A 1 4/8/96 1 131

<0.4

<0.4 Air lodine-A5 4'8/96 1-131

<0.5

<0.5 pCi/L Bay Water-Wa2 4/15/96 Gamma

<MDA

<MDA

<MDA 1

10 2 pCi/m' Air Filter-A 1 5/6.'96 Beta 0.810.2 0.810.2

)

Air Filter-A2 5/6/96 Beta 0.910.3 1.0.z0.3 Air Filter-A3 5/6/96 Beta 0.910.3 1.010.3 Air Filter-A4 5/6/96 Beta Low Flow j

Air Filter-A5 5/6'96 Beta 0.910.2 1.010.2 Air Filter-SFA I 5/6'96 Beta 0.810.2 0.9i0.2 Air Filter-SFA2 5/6/96 Beta 1.010.2

1. lio.2 Air Filter-SFA3 5/6/96 Beta 1.010.2 0.910.2 Air Filter-SFA4 5/6/96 Beta 0.810.2 0.810.2 j

Air lodine-A3 5/6/96 1-131

<0.5

<0.5 Air lodine-A5 5'6/96 1-131

<0.5

<0.5

• Samples split with Duke Power Company, Radiological and Environmental Services,ilunterville, NC. On the following table is a list of their typical MDAs.

• • The nature of these samples precluded splitting them with Duke Power Company.

83 i

i l

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1996 Sample Type Sample Type of Original Replicate Split' And Location Date Analysis Analysis Analysis Analysis pCi/kg Shoreline-Wbl 5/17/96 Gamma

<MDA

<MDA

<MDA 10 2 pCi/m' Air l' iller-A I 6/10/96 ilela 1.010.2

1. l

• 0.2 Air Filter A2 6/10/96 lieta

1. l

• 0.3 0.910.3 Air Filter A3 6/10/96 lieta 1.410.3 1.510.4 Air Filter-A4 6/10/96

!! eta 1.010.2 1.010.2 Air filter-A5 6/10/96 lieta 0.910.2 1.0f 0.2 Air Filter-SFA i 6/10.'96 Ileta 1.110.2 1.1 0.2 Air Filter-SFA2 6/10/96 ileta 1.110.2 1 li0.2 Air Filter-SFA3 6/10/96 Ileta 1.0 t 0.2 1.010.2 Air Filter-SFA4 6/10.~96 Ileta 0.910.2 1.010.2 Air lodine-A l 6/10/96 1-131

<0.6

<0 6 Air lodine-A2 6/10 96 1-131 (0.5

< 0.5

• Samples split with Duke Power Company, Radiological and Environmental Services, ilunterville, NC. On the following table is a list of their typical MDAs.

• • The nature of these samples precluded splitting them uith Duke Power Company.

84

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE C Continued Results of Quality Assurance Program for 1996 Sample Type Sample Type of Original Replicate Split

• And Location Date Analysis Analysis Analysis Analysis 10 pCi/m' Air Filters-A 1 6/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-A2 6/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-A3 6/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-A4 6/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-A5 6/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-SFA 1 6/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-SI'A2 6/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-SFA3 6/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-SFA4 6/15/96 Gamma

<MDA

<MDA

<MDA pCi/kg Soil-SFS2 6/7/96 Cs-137 171128 (reanalysis 171*29 287*15 285+25)

Soil-SFS4 6/7/96 Cs-137 22 2 (reanaly sis 2112 5219 48117)

Vegetation-SFb2 6'7/96 Gamma

<MDA

<MDA

<MDA Vegetation-SFb4 6/7/96 Gamma

<MDA

<MDA

<MDA 10 pCi/m' 4

Air Filter-A 1 7/3/96 Ileta 1.610.2 1.510.2 Air Filter-A2 7/8'96 Ileta Low Flow Air Filter-A3 7/8'96 Ileta 1.110.3 1.110.3 Air Filter-A4 7/8/06 lieta 1.610.3 1.6

• 0.3 Air Filter-A5 7/8/96

!! eta 2.010.3 2.0i0.3 Air Filter-SFA 1 7/896 Ileta 1.410.2 1.610.2

. Air Filter-SI'A2 7/8'06 Ileta 1.7* 0.2 1.540.2 Air Filter-SFA3 7/8'96 ileta 1.410.2 1.4 0.2 Air Filter-SFA4 7/8'96 Ileta 1.4+0.2 1.310.2 Air lodine A4 7/8'06 1-131

<0.6 (0.6 Air lodine A5 7/8'96 1-131 (0.6

<0.6 0 Samples split uith Duke Power Company, Radiological and Environmental Services,ilunterville, NC. On the folkuving table is a list of their typical MDAs.

"The nature of these samples precluded splitting them with Duke Power Company.

85

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE C Continued Results of Quality Assurance Program for 1996 Sample Type Sample Type of Original Replicate Split

• And Location Date Analysis Analysis Analysis Analysis pCi/L Bay Water Wa2 7/15/96 Gamma

<MDA

<MDA

<MDA 102 pCi/m' Air Filter-A1 8/19/96 Beta 1.610.2 1.510.2 Air Filter-A2 8/19/96 Beta

1. l

• 0.2 1.120.2 Air Filter-A3 8/19/96 Beta 1.410.2 1.5io.3 Air Filter-A4 8/19/96 Beta 1.210.2 1.1 + 0.2 Air Filter-A5 8/19/96 Beta 2.0i0.2 2.0*0.3 Air Filter-SFA1 8/19/96 Beta 1.410.2 1.5 t0.2 Air filter SFA2 8/19/96 Beta 1.4*0.3 1.5 0.2 Air Filter SFA3 8/19/96 Beta 1.510.2 1.5*0.2 Air Filter SFA4 8/19/96 Beta 1.2*0.2 1.2i0.2 Air lodine A1 8/12/96 1131

<0.4

<0.4 Air lodine A2 -

8/12'96 1 131

<0.5

<0.5 pCi.>kg Oysters-la3 8/19/96 A g-l 10 3218 29110 17i2 Vegetation Ibl 8/26/96 Gamma

<MDA

<M D A

<MDA Vegetation lb2 8/26/96 Cs-137

<MDA (MDA 723 Vegetation Ib4 8/26/96 Gamma

<MDA

<MDA

<MDA Vegetation-lb5 8/26/96 Gamma

<MDA

<MDA

<MDA Vegetation lb7 8/26/96 Gamma

<MDA

<MDA

<MDA Vegetation Ib8 S/26/96 Gamma

<MDA

<MDA

<MDA 10~2 pCi/m' Air Filter-Al 9/16/96 Beta 1.4*0.2 1.410.2 Air Filter-A2 9/16/96 Beta 1.110.2 1.2 0.2 Air Filter-A3 9/16/96 Beta 1.310.2 1.410.2 Air Filter-A4 9/16/96 Beta 1.3*0.2 1.4t0.2 Air Filter-A5 9/16/96 Beta 1.810.2 2.010.2 Air Filter SFAI 9/16/96 Beta 1.410.2 1.7a0.2 Air Filter SFA2 9/16/96 Beta 1.3*0.2 1.3 0.2 Air Filter SFA3 9/16/96 Beta 1.7*0.2 1.7*0.2 Air Filter-SFA4 9/16/96 Beta 1.3*0.2 1.4 0.2

• Samples split with Duke Power Company, Radiological and Environmental Services,ilunterville, NC. On the following table is a list of their typical MDAs.

"The nature of these samples precluded splitting them with Duke Power Company.

86

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE C Continued j

Results of Quality Assurance Program for 1996 Sampic Type Sample Type of Original Replicate Split

• And Location Date Analysis Analysis Analysis Analysis 10 pCi/m' Air lodine-A1 9/16/96 I-131

<0.8

<0.6 Air lodine-A2 9/16/96 l131

<0.3

<0.4 pCi'kg Fish la2 10/2/96 Gamma

<MDA (MDA O'OA 10^2 pCi/r '

l Air Filter-Ai 10/14/96 Beta 1.710.3 1.7*0.3 Air Filter-A2 10/14/96 Beta 1.310.2 1.3i0.2 Air Filter-A3 10/14/96 Beta 1.410.2 1.5

• 0.3 Air Filter-A4 10/14/96 Beta 1.430.2 1.5

• 0.2

' Air Filter-A5 10/14/96 Beta 1.310.2 1.5*0.3 Air Filter-SFA i 10/14/96 Beta 1.320.2 1.3+0.2

Air Filter SFA2 10/14/96 Beta 1.510.3 1.540.3 Air filter SFA3 10/14/96 Beta 1.340.2 1.3*0.2 Air filter SFA4 10!!4/96 Beta

1. li0.2

1. l

• 0.2 Air lodme A3 10!!4/96 1-131

<0.6

<0.6 Air lodme-A4 10/14!96 l-131

<0.4

<0.4 l

pCiig Vegetation-lb2 10/28/96 Gamma

<MDA

<MDA

<MDA Vegetation lb3 10/28/96 Gamma

<MDA

<MDA

<MDA Vegetation-Ib5 10/28'96 Gamma (MDA

<MDA (MDA Vegetation lb6 10'28'96 Gamma

<MDA

<MDA

<MDA Vegeta.4oT Ib7 10/28'96 Gamma

<MDA

<MDA

<MDA

. Vegetation lb9 10/28'96 Gamma

<MDA (MDA

<MDA Samples split with Duke Power Company, Radiological and Environmental Services,ilunterville, NC. On the

>llowing table is a list of their typical MDAs.

• The nature of these samples precluded splitting them with Duke Power Company.

87

January 1 - December 31,1996 Docket Nos. 50-317/318 TAlli E C Continued Results of Quality Assurance Program for 1996 Sample Type Sample Type of Original Replicate Split

• And Location Date Analysis Analysis Analysis Analysis mR/30 Days DR22 10/31/96 TLD 2.2010.30 2.67 0.26 DR24 10/3I/96 TLD 3.2110.97 3.24 t0.34 DR25 10/31/96 TLD 8810.38 3.79 0.64 DR26 10/31/96 TLD 3 J7* 0.44 334 0.58 DR27 10/31/96 TLD 3.6 7.+ 0.44 3.3610.42 DR30 10/31/96 TLD 3.8810.36 3.6510.26 DR32 10/31/96 TLD 3.3310.26 2.86t0.56 DR33 10/31/96 TLD 4.6310.44 4.41 0.48 DR34 10'31/96 TLD 2.821032 2.812.0.36 SFDR08 10/31/96 TLD 6.4510.88 6.14 1.12 SFDR09 10/31/96 TLD 3.75*0.56 3.5620.32 pCit flay Water Wa2 11/15/96 Tritium 84t37 75 37

<101 10 pCi m' 4

Air Filter-A i 11/18/96

!! eta 1.310.3 1At0.3 Air Filter-A2 11/18'96

!! eta 1.010.2 1.220.2 Air Filter A3 1I/18/96 Ileta

1. l

• 0.2 1.310.2 Air Filter-A4 11/18/96 Ileta 1.310.2 1.4 :0.2 Air iilter A5 11/18/96

!! eta 1.610.3 1.7 0.3 Air Filter-SFAi 11/18'96 Ileta 1.210.2 1.4 0.2 Air Filter SFA2 11/18/96 Ileta 1.310.3 1.5 0.3 Air Filter SFA3 11/18/96 Ileta 1.3*0.2 1.4 0.2 Air Filter-SFA4 1 !!!8/96 lieta 1.210.2 1.410.2 10 pCi m' 4

Air lodine-A2 11/11/96 1-131

<0.4

<0.4 Air lodine-A3 I l!) 1/96 1 131 (0.5 15

• Samples split with Duke Power Company, Radiological and Environmental Services, ilunterville, NC. On the following table is a list of their typical MDAs.

"The nature of these samples precluded splitting them with Duke Power Company.

88

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1996 Sample Type Sample Type of Original Replicate Split

• And Location Date Analysis Analysis Analysis Analysis 10'2 pCi/m' Air Filter Ai 12/9/96 Beta 1.4

• 0.2 1.6z0.2 Air Filter-A2 12/9/96 Beta 1.210.2 1.310.2 Air Filter-A3 12/9/96 Beta

1. l

• 0.2 1.3

• 0.2 Air Filter-A4 12/9/96 Beta 1.3 0.3 1.Si0.3 Air Filter-A5 12/9/96 Beta 1.8*0.4 2.010.4 Air Filter.SFA 1 12/9/96 Beta 1.4*.0.3 1.520.3 Air Filter-SFA2 12/9/96 Beta 1.610.3 1.810.3 Air Filter-SFA3 12/9/96 Beta 1.8 i0.3 1.9 0.3 Air Filter SFA4 12/9/96 Beta 1.7*0.3 1.8 0.3 Air lodine-A3 12/4/96 1-131

<0.6

<0.5 Air lodine-A4 12/4/96 1-131

<0.5

<05 10 pCi'm' 4

Air Filters-Al 12/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-A2 12/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-A3 12/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-A4 12/15/96 Gamma

<MDA

<MDA (MDA Air Filters-A5 12/15/96 Gamma

< M D '.

<MDA

<MDA Air Filters-SFA i 12/15/96 Gamma

.iDA

<MDA

<MDA Air Filters-SFA2 12/15/96 Gamma

<MDA (MDA

<MDA Air Filters-SFA3 12/15/96 Gamma

<MDA

<MDA

<MDA Air Filters-SFA4 l2/15/96 Gamma

<MDA

<MDA

<MDA mR/30 Days DROI 12/31/96 TLD 4.27*0.31 4.08:0.26 DR02 12/31/96 TLD 3.53i0.46 3.41:0,46 DR03 12/31/96 TLD 3.5510.41 3.70:0.46 DR04 12/31/96 TLD 4.21*0.47 4.19 0.54 DR05 12/31/96 TLD 3.96*0.55 3.8010.45 DR06 12/31/96 TLD 3.43*0.43 3.29:0.27 DR23 12/31/96 TLD 4.91 d 0.49 4.8820.69 DR28 12/31/96 TLD 4.5010.52 4.42 0.72 SFDRIO 12/31/96 TLD 13.55*2.04 13.86=2.38 SFDRil 12/31/96 TLD 7.69*l.05 8.55:1.23 RPDR05 12/31/96 TLD 5.3910.59 4.9920.57 Samples split with Duke Power Company, Radiological and Environmental Services, ilunterville, NC. On the illowing table is a list of their typical MDAs.

• The nature of these samples precluded splitting them with Duke Power Cong. m 89

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE C-3 Duke Power Company's Typical MDAs for Gamma Spectrometry Selected Bay Water Fish Shellfish Sedimr nt Vegetation Particulates 10 3 Ci/m3 Nuclides pCill pCi/kg pCi/kg pCi/kg pCi/kg p

11 3 175 Na-22 1

8 3

12 6

5 Cr-51 12 105 4

104 50 63 Mn-54 1

9 3

12 5

4 Co 58 1

9 4

9 4

5 Fe-59 3

28 9

24 10 12 Co-60 1

9 4

12 5

6 Zn-65 2

20 8

25 10 9

Nb-95 1

12 7

14 6

9 Zr-95 2

18 8

20 9

9 Ru-106 9

75 30 90 41 40 4

Ag-l l om i

10 10 10 5

4 Te-129m 16 131 60 162 79 95 I-131 4

65 30 35 22 74 Cs-134 1

8 4

10 5

4 Cs-137 1

9 4

10 5

4 llal.a-140 3

32 15 25 14 36 Cc-144 7

40 16 54 26 18 90

January 1 - December 31,1996 Docket Nos. 50-317/318 APPENDIX D Appendix D contains the results of a Land Use Survey conducted around Calvert Cliffs Nuclear Power Plant puring the growing season of 1996. A table listing the raw data of this survey and a

,I,able D-1 fiscussion of the results are included in this Land Use Survey Ippendix.

Distance From Plant D.iscussion (km)

Sector l Residence Garden A Land Use Survey was conducted during the SE l

26 76 growing season of the year 1996 to identify, SSE I

2.8 2.8 within a distance of 8 km, the location of the l

3.0 3.8 g

nearest milk ammal, the nearest residence, and 2

SSW l

2.4 2.4 jthe nearest garden greater than 50 m m each of SW 73

'5 4the nine sectors over land. A detailed description b0 b0 WSW of the Land Use Survey is given m a separat W

M 3.1 focument (45). The position of the nearest WNW 75 75 NW l

b.9 b.9 residence and garden in each sector out to 8 km are given in the adjacent table. No dairy animal was found within 8 km in any direction. There has not been any significant change in the use oflocal lands in the last few years.

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 biowing from the direction of the plant. The two gardens used for vegetable samples by the Radiological Environmental Monitoring Proi; ram Ihave 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 sector-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 dose assessment using 1996 meteorological data was performed, and no significant impact from the plant was found.

91

January 1 - December 31,1996 i

Docket Nos. 50-317/318 b

f 4

L P

h h

r L

(LEFT BLANK) 1 s

t I

1 i

i t

t 92 r

i

i January 1 - December 31,1996 1

Docket Nos. 50-317/318 APPENDIX E Appendix E is a presentation of the analytical results for additional samples collected in the environs of Calvert Cliffs Nuclear Power Plant during the year 1996. These extra samples are not required by the Off Site Dose Calculation Manual (38). They were collected and analyzed to maintain the historical continuity for samples j

md sampling pathways discontinued when the Environmental Technical Specifications were changed in March.

1985. Additionally, they include the Pressurized lon Chambers added for the Independent Spent Fuel Storage Installation.

fable E-l I shows the direct radiation readings from TLDs placed at the perimeter of the resin storage area locatcd to the west of the ISFSI facility. The TLD values are higher than those in the REMP program due to their proximity to the source of the radiation. Ilowever, when the direct radiation readings for the ISFSI and Site Boundary TLDs are reviewed, it is apparent that storage of the spent resin is having no significant, measurable effect on the environs surrounding Calvert Cliffs Nuclear Power Plant.

93

~..

January 1.- Dccember 31,1996-Docket Nos. 50-317/318 P

7 9

i t

e F

s

[!

[

s a

9 (LEFT 13 LANK) 5 3

4 4

J e

4 i

ir 7

i 94 i

j.

January 1 - December 31.1996 Docket Nos. 50-317/318 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page-E-1

_ Locations of Non Tech Spec Environmental Sampling Stations for Calvert Cliffs Nuclear Power Plant............................................................ 96

=

E-2.

Synopsis of the 1996 Calvert Cliffs Nuclear Power Plant j

Non Tech Spec Radiological Environmental Monitoring Program............................. 97 E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units 1 & 2 Non-Tech Spec Radiological Environmental Monitoring Program............................. 98 E-4.

Concentrations of Gamma Emitters in Bottom Sediment............................................. 99 j

i E5 Concentrations ofI-131 in Filtered Air........

.......................................................100' I

E Concentrations of Beta Emitters in Air Particolates..

............................................102 E-7 Concentrations of Ganima Emitters in Air Particulates.............................................104 E-8 Concentrations of Tritium and Gamma Emitters in Tay l o rs I s la n d Wel l Wat e r.................................................................................. 10 5 E ' Direct Radiation As Measured By Pressurized Ion Chamber.....................................106 E.10 Di rect Rad iation.....................................................................................107-E-11 Direct Radiation From Resin Storage Area....

.............................................109 t

i 5

i i

i 6

s 1

1 b

i Y

95 J

}>

n

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE E-1 Locations of Non-Tech Spee Environmental Sampling Stations for Calvert Cliffs Nuclear Power Plant i

Distance i Direction' Station Description (Kilometers) l (Sector) i A6 j Long 13each 4.4 l

NW i

A7 Taylors Island, Carpenter's Property i

12.6 ENE A8 Cambridge, U of MD Estuarine Center j

32.0 NE DR24 Route 4 and Parran Road l

3.0 SW f

DR25 Camp Conoy Guard llouse j

l.0 S

DR26 Route 235 & Clarks Landing Rd.

l 20.5 l

SW DR27 Route 231 & Route 4 23.0 l

NW l

DR28 Taylors Island Emergency Siren #35 12.3 ENE DR29 Taylors Island Emergency Siren #38 12.5 E

DR31 Cambridge, U of MD Estuarine Center 32.0 NE

+

12.3 l

NE DR32 Twining Property, Taylors Island i

DR33 P.A. Ransome Property, Taylors Island 14.8 l

ESE DR34 Shoreline at Ilarge Road 0.2 i

NE PICl Taylors Island, Carpenter's Property 12.6 ENE PIC2 On Site before Entrance to Camp Conoy O.7 S

PIC3 Meteorological Station 0.8 WSW PIC4 NNW ofISFSI 0.6 SW PICS South ofISFSI 0.6 SW PIC8 CCNPP Visitors Center 0.3 NW Wbsl Intake Area 0.2 NE Wbs2 Discharge Area 0.3 N

Wbs3 1.ong 13each 4.4 NW Wbs4 Camp Conoy/ Rocky Point 3.0 SE Wwl Taylors Island, Carpenter's Property 12.6 ENE

' Distance and direction from the central point between the two containment buildings.

96

^

~

Docket Nos. 50-317/318 -

TAlli.E E-2 Synopsis of 1996 Calvert Cliffs Nuclear Power Plant Non-Tech Spee Radiological Environmental Monitoring Program Sampling Number of Number Number Sample Type Frequency '

Locations Collected Analysis Analysis Frequency '

Analyzed Aquatic Environment Bottom Sediment Q

4-16 Gamma O

16

' Atmospheric Environment 2

Airiodine W

7 364 i-131 W

364

+

2

' Air Particulates W

3 156 Gross Beta W

156 Gamma MC 36 Direct Radiation Pressurized lon M

6 69 Gamma M-69 Chamber Ambient Radiation M

18 976 TLD M

976 Terrestrial Environment Ground water M

1 12 Gamma M

12 H-3 M

12

' W-weekly, M-monthly, Q-quarterly, SA-semiannual, A-annual, C-composite

• The collection device contains silver zeolite

' Beta counting is perfomed after >= 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> decay. Gamma spectroscopy performed on monthly composites of weekly samples 97

January 1 - December 31.1996-Docket Nos. 50-317/318 TABLE E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units I & 2 Non-Tech Spec Radiological Environmental Monitoring Program Location with Highest Medium or.

Type and Lower Limit Indicator Annual Mean Highest Control Pathway Sampled Total Number of Locations Annual Locations (Unit of -

ofAnalyses Detection Mean (F)/

Namel Mean (Fl/

Mean (F)/

Measurement)

Performed (LLD)

Range' Distance & Direction Range Range' 2

Aquatic Environment Bottom Sediment Gamma (16) 33 200(12/12)

Long Beach Wbs3 257 (4/4) 141 (4/4)

(pCi/kg)

Cs-137 (84-394) 4.4 km NW (218-309)

(56-234) l

' Atmospheric Environment Air Particulates Gross Beta (156) 0.5 1.6 (104/104)

Long Beach A6 1.6 (52/52) 1.6 (52/52) 4

. (10 pCVm )

(0.5-31) 4.4 km NW (0.5-2.9)

(0.7-3.1)

Direct Radiation Ambient Radiation TLD (976) 4.07 (976/976)

West Fence left 24.15(50/50)

(mR/30 days)

(2.51-5.62)

RPDR08 (3.71-66.25) km Pressurized lon lonization Chamber 5(60/60)

NNW ofISFSI PIC4 8 (12/12) 6 (9/9)

Chamber (69)

(4-9) 0.6 km SW (8-9)

(5-6)

(mR/30 days)

' Mean and range based upon detectable measurements only. Fraction (F) of detectable measurements at specified location is indicated in parentheses.

2 From the centerpoint between the two containment buildings.

98

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE E-4 Concentration of Gamma Emitters in Bottom Sediment (Results in units of pCi/kg (wet) +/- 2a)

Sample Other SAMPLE CODE Date Cs-137 Gamma Emitters Wbs1 3/25/96 89 +/- 31 Intaka Ar:0 6/3/96 93 +/- 35 8/19/96 105 +/- 19 10/2/96 184 +/- 24 Wbs2 3/25/96 84 +/- 32 l

Dischargs Area 6/3/96 214 +/- 39 8/19/96 211 +/- 37 10/2/96 394 +/- 41 Wbs3 3/25/96 220 +/- 42 Long B ach 6/3/96 218 +/- 51 8/19/96 309 +/- 36 10/2/96 280 4/-38 Wbs4 '

3/25/96 69 +/- 28 Ccmp Conoy/ Rocky Point 6/3/96 56 +/- 23 8/19/96 204 +/- 34 10/2/96 234 +/- 31

Non Natural Gamma Emitters < MDA l Control Location 99 b

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE E-5 Concentration ofIodine-131 in Filtered Air 3

(llesults in units of 10-3 pCi/m +/- 2a)

A6 A7' A8 SFA1 SFA2' SFA3 SFA4 Long Taylors Cambridge MET Visitors NNW of South of Start Date Stop Date Beach Island Station Center ISFSI ISFSI 1/2/96 1/11/96 1/11/96 1/16/96 1/16/96 1/22/96 1/22/96

-1/29/96 1/29/96 2/5/96 2/5/96 2/12/96 2/12/96 2/20/96 2/20/96 2/26/96 i

2/26/96 3/4/96 3/4/96 3/11/96 3/11/96 3/18/96 3/18/96 3/25/96 3/25/96 4/1/96 4/1/96 4/8/96 4/8/96 4/15/96 4/15/96 4/22/96 4/22/96 4/29/96 4/29/96 5/6/96 5/6/96 5/13/96 5/13/96 5/20/96 5/20/96 5/28/96 5/28/96 6/3/96 6/3/96 6/10/96 6/10/96 6/17/96 6/17/96 6/24/96 G/24/96 7/1/96 7/1/96 7/8/96 7/8/96 7/15/96 7/15/96 7/22/96 7/22/96 7/29/96

' < MDA

' Control Location 100

January 1 - December 31,1996 Docket Nos. 50-317/318 TABLE E Continued Concentration ofIodine-131 in Filtered Air 3

3 (Results in units of 10 pCi/m +/- 2a)

A6 A7' A8 SFA1 SFA2' SFA3 SFA4 Long Taylors Cambridge MET Visitors NNWef South of Start Date Stop Date Beach Island Station Center ISF 81 ISFSI 7/29/96 8/5/96 8/5/96 8/12/96 8/12/96 8/19/96 8/10/96 8/26/96 8/26/96 9/3/96

'9/3/96 9/9/96 9/9/95 9/16/96 9/16/96 9/23/96 9/23/96 9/30/96 9/30/96 10/7/96 10/7/96 10/14/96 10/14/96 10/21/96 10/21/96 10/28/96 10/28/96 11/4/96 11/4/96 11/11/96 11/11/96 11/18/96 11/18/96 11/25/96 11/25/96 12/2/96 12/2/96 12/9/96 12/9/96 12/16/96 12/16/96 12/23/96 12/23/96 12/30/96 l

' < MDA.

3 Control Location 101

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE E-6 Concentration oflieta Emitters in Air Particulates 3

(Results in units of 10 pCi/m +/- 2a)

A6 A7' A8 Start Dato Stop Date Long Beach Taylors Island Cambridge 1/2/96 1/11/96 2.7 +/- 0.3 3.1 +/ 0.3 2.7 +/- 0.3 1/11/96 1/16/96 2.8 +/- 0.4 2.6 +/- 0.5 3.1 +/- 0.4 1/16/96 1/22/96 2.0 +/- 0.3 1.8 +/- 0.3 1.7 +/- 0.3 1/22/96 1/29/96 1.7 +/- 0.2 1.9 +/- 0.3 1.9 +/- 0.3 1/29/96 2/5/96 2.9 +/ 0.3 3.0 +/- 0.4 2.9 +/- 0.4 2/5/96 2/12/96 2.2 +/- 0.3 2.2 +/- 0.3 2.7 +/- 0.3 2/12/96 2/20/96 1.7 +/- 0.2 1.7 +/- 0.3 1.9 +/- 0.3 2/20/96 2/26/96 0.5 +/- 0.2 1.1 +/- 0.3 1.1 +/- 0.3 2/26/96 3/4/96 0.7 */- 0.2 2.4 +/- 0.3 2.3 +/- 0.3 3/4/96 3/11/96 2.2 +/- 0.3 2.1 +/- 0.3 2.0 +/- 0.3 3/11/96 3/18/96 1.8 +/- 0.3 2.2 +/- 0.3 2.3 +/- 0.4 3/18/96 3/25/96 2.3 +/- 0.3 1.8 +/- 0.3 1.4 +/- 0.3 3/25/96 4/1/96 1.5 +/- 0.3 1.5 +/- 0 3 1.2 +/- 0.3 4/1/96 4/8/96 1.8 +/- 0.3 1.7 +/- 0.3 1.9 +/- 0.3 4/8/96 4/15/96 1.6 +/- 0.3 1.7 +/- 0.3 1.4 +/- 0.3 4/15/96 4/22/96 17 +/- 0.2 1.6 +/- 0.2 1.5 +/- 0.2 4/22/96 4/29/96 1.4 +/. 0.2 1.0 +/- 0.2 0.8 +/- 0.2 4/29/96 5/6/96 1.3 +/- 0.2 1.3 +/- 0.2 1.1 +/- 0.2 5/6/96 5/13/96 0.8 +/- 0.2 0.8 +/- 0.2 0.9 +/- 0.2 5/13/96 5/20/96 1.1 +/- 0.2 1.6 +/- 0 3 1.4 +/- 0.2 5/20/96 5/28/96 1.0 +/- 0.2 1.1 +/- 0.2 0.7 +/- 0.2 5/28/96 6/3/96 0.7 +/- 0.2 0.9 +/- 0.2 0.9 +/- 0.2 6/3/96 6/10/96 0.9 +/- 0 2 1.1 +/- 0.2 1.0 +/- 0.2 6/10/96 6/17/96 1.3 +/ 0.2 1.4 +/- 0.2 0.6 + /- 0.2 6/17/96 6/24/96 1.2 +/- 0.2 0.7 +/- 0.2 0.7 +/- 0.2 6/24/96 7/1/96 0 9 +/- 0.2 1.1 +/- 0.2 1.1 +/- 0 2 7/1/96 7/8/96 1.1 +/- 0.2 1.6 +/- 0.3 1.3 +/- 0.2 7/8/96 7/15/96 1.5 +/- 0.2 1.0 +/- 0.2 0.9 +/- 0 2 7/15/96 7/22/96 1.6 +/- 0.2 1.2 +/ 0.2 0.8 +/- 0.2 7/22/96 7/29/96 1.0 +/- 0.2 0.8 +/- 0.2 1.0 +/- 0.2 7/29/96 8/5/96 1.3 +/ 0.2 1.3 +/- 0.3 1.2 +/- 0.3 8/5/96 8/12/96 1.7 +/- 0.2 0.9 +/- 0.2 0.7 +/- 0.2 8/12/96 8/19/96 1.7 +/ 0.2 1.3 +/- 0.2 0.9 +/- 0.2 0/19/96 8/26/96 2.0 +/- 0.2 2.3 +/- 0.3 1.7 +/- r 2 8/26/96 9/3/96 2.0 +/- 0.2 1.8 +/- 0.2 1.4 +/ C 2

' Control Location 102

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE E Continued Concentration ofIleta Emitters in Air Particulates (Itesults in units of 10-2 pCi/m' +/- 20)

A6 A7' A8 St rt D'te Stop Date Long Beach Taylors Island Cambridge 9/3/96 9/9/96 1.7 +/- 0.3 1.6 +/- 0.3 1.6 +/- 0.3 9/9/96 9/16/96 1.5 +/- 0.2 0.8 +/- 0.2 1.0 +/- 0.2 9/16/96 9/23/96

2. 3 + /- 0. 3 1.2 +/- 0.2 1.9 +/- 0.3 9/23/96 9/30/96 1.6 +/- 0.2 1.5 +/- 0.2 1.7 +/- 0.2 9/30/96 10/7/96 1.6 +/- 0.2 1.3 +/- 0.2 0.8 +/- 0.2 10/7/96 10/14/96 1.5 +/- 0.3 1.9 +/- 0.2 2.0 +/- 0.3 10/14/96 10/21/96 1.9 +/- 0.3 1.6 +/- 0.2 2.3 +/- 0.3 10/21/96 10/28/96 2.2 +/- 0.3 2.5 +/- 0.3 2.7 +/- 0.3 10/28/96 11/4/96 2.2 +/- 0. 3 2.3 +/- 0.3 2.7 +/- 0.4 11/4/96 11/11/96 1.4 +/- 0.2 1.3 +/- 0.2 1.3 +/- 0.2 11/11/96 11/18/96 1.5 +/ 0.2 1.7 +/- 0.2 1.4 +/- 0.3 11/18/96 11/25/96 2.3 +/- 0.3 1.2 +/- 0.3 1.9 +/- 0 3 11/25/96 12/2/96 1.7 +/- 0 2 1.4 +/- 0.3 1.4 +/- 0.3 12/2/96 12/9/96 1.7 +/- 0,3 1.8 +/- 0.3 2.0 +/- 0. 3 12/9/96 12/16/96 1.3 +/- 0.2 1.3 +/- 0.3 1.3 +/- 0.3 12/16/96 12/23/96 1.5 +/- 0. 3 1.9 +/- 0.3 2.3 +/- 0 4 12/23/96 12/30/96 2.0 +/- 0.2 2.4 +/- 0.3 2.2 +/- 0.3

' Cor. trol location i

103

Janumy 1 - December 31,1996 Docket Nos. 50-317/318 TAHLE E-7 Concentration of Gamma Emitters in Air Particulates (Results in units of 10'3 pCi/m +/- 20) 3 Sample A6 A7' CAM Date Long Beach Taylors Island Cambridge, Maryland 1/15/96 2/15/96 3/15/96 4/15/96 5/15/96 6/15/96 7/15/96 8/15/96 9/15/96 10/15/96 11/15/96 12/15/96.

• Non Natural Gamma Eminers < MDA

' Control Location 104

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE E-8 Concentration of Tritium and Gamma Emitters in Taylors Island Well Water (Itesults in units of 10~3 pCi/m' +/- 2a)

S mpb D:te H-3 Gamma Emitters j

1/31/96

<34 2/29/96

<35 3/29/96

<35 5/1/96

<36 5/31/96

<36 6/28/96

<36 7/31/96

<38 8/29/96

<38 10/2/96

<38 10/31/96

<38 12/3/96

<37 12/31/96

<38 1

l Non Natural Gamma 1:mitters, MDA 105

January 1 - December 31,1996 j

Docket Nos. 50-317/318 i

TAllLE E-9 Direct Radiation as Measured in Pressurized Ion Chamber (Results in units of mR/30 days +/- 10%)

Simple Code Month Month PIC1 JAN 5.37 +/- 0.54 FEB 5.64 +/- 0.56 Taylor's Island MAR 5.79 +/- 0.58 APR 5.74 +/- 0.57 MAY JUN JUL AUG 5.74 +/ 0.57 SEP 5.91 +/ 0.59 OCT 5.65 +/- 0.56 NOV 5.82 +/- 0.58 DEC 5.74 +/- 0.57 PIC2 JAN 3.91 4/- 0.39 FEB 4.07 +/- 0.41 Entrance to Camp MAR 4.01 +/- 0.40 APR 3.99 +/- 0.40 Conoy MAY 4.02 +/- 0.40 JUN 4.07 +/- 0.41 JUL 4.03 +/- 0.40 AUG 3.97 +/- 0.40 s

1 SEP 4.05 +/- 0.41 OCT 4.01 +/- 0.40 NOV 3.93 +/- 0.39 DEC 4.00 +/- 0.40 PIC3 JAN 4.64 +/- 0.46 FEB 4.74 +/- 0 47 l

MET Station MAR 4.76 +/- 0.48 APR 4.74 +/- 0.47 MAY 4.74 +/- 0.47 JUN 4.91 +/- 0.49 JUL 5.10 +/- 0.51 AUG 4.89 +/ 0.49 SEP 4.93 +/- 0.49 OCT 4.95 +/- 0.50 NOV 4.91 +/- 0.49 DEC 4.89 +/- 0.49 PIC4 JAN 8.02 +/- 0.80 FEB 8.12 +/- 0.81 NNW of ISFSI MAR 8.18 +/- 0.82 APR 8.19 +/- 0.82 MAY 8.19 +/ 0.82 JUN 7.70 +/- 0.77 JUL 7.79 +/- 0.78 AUG 7.68 +/- 0.77 SEP 8.01 +/- 0.80 OCT 8.69 +/- 0.87 NOV 9.10 +/- 0.91 DEC 9.35 +/- 0.94 PICS JAN 4.69 +/ 0.47 FEB 4.93 +/- 0.49 S of ISFSI MAR 4.98 +/ 0.50 APR 4.93 +/- 0.49 MAY 4.91 +/- 0.49 JUN 4.94 +/- 0.49 JUL 4.99 +/- 0 50 AUG 4.96 +/- 0.49 SEP 5.02 +/- 0.50 OCT 5.01 +/- 0.50 NOV 5.12 +/- 0.51 DEC 5.24 +/- 0.52 PIC8 JAN 5.23 +/- 0.52 FEB 5.29 +/- 0.53 Visitors Center MAR 5,34 +/- 0.53 APR 6.03 +/- 0.60 MAY 5.39 +/ 0.54 JUN 5.11 +/- 0.51 JUL 5.24 +/- 0.52 AUG 5.22 +/- 0.52 SEP 5.29 +/- 0.53 OCT 5.17 +/- 0.52 NOV 5.05 +/- 0.51 DEC 5.06 +/- 0.51

' Instrument being serviced 106 l

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE E-10 Direct Radiation (Results in units of mR/30 days +/- 2a)

Srmpl3 Code Month Month DR24 JAN 3.26 +/- 0.56 FEB 3.72 +/- 0.68 Rt. 4 cnd Parran Rd.

MAR 3.85 +/- 0.26 APR 3.95 +/- 0.19 MAY 4.47 +/- 0.33 JUN 3.29 +/- 0.86 JUL 4.03 +/- 0.13 AUG 3.65 +/- 0.22 SEP 3.30 +/- 0.58 OCT 3.21 +/- 0.97 NOV 4.05 +/- 0.72 DEC 4.34 +/- 0.90 DR25 JAN 3.76 +/- 1.26 FEB 3.98 +/- 1.25 Ccmp Conoy MAR 3.85 +/- 0.58 APR 4.23 +/- 0.44 Guard House MAY 4.35 +/- 0.33 JUN 4.08 +/- 0.30 JUL 4.52 +/ 2.07 AUG 4.11 +/- 0.74 SEP 3.70 +/- 0.50 OCT 3.88 +/- 0.37 NOV 4.35 +/- 0.50 DEC 4.06 +/- 0.66 DR26 JAN 3.59 +/ 0.61 FEB 3.70 +/- 0.39 Rt. 235 and Clark's MAR 3.05 +/- 0.03 APR 4.06 +/- 0.80 Landing Road MAY 4.35 +/- 0.15 JUN 3.26 +/- 0.67 JUL 3.62 +/- 0.42 AUG 3.78 +/- 1.15 SEP 3.11 +/- 0.15 OCT 3.37 +/- 0.44 NOV 3.67 +/- 0.22 DEC 3.60 +/- 0.42 DR27 JAN 4.22 +/- 0.80 FEB 3.56 +/- 0.66 Rt. 231 and Rt. 4 MAR 3.86 +/- 0.06 APR 3.76 +/- 0.21 MAY 4.05 +/- 0.57 JUN 3.81 +/- 0.45 JUL 3.52 +/ 0.60 AUG 3.40 +/- 0.66 SEP 3.35 +/- 0.52 OCT 3.67 +/- 0.44 NOV 3.81 +/- 0.52 DEC 3.86 +/- 0.46 DR28 JAN 4.24 +/- 0.59 FEB 4.51 +/- 0.08 Teylors is. Siren #35 MAR 4.35 +/- 1.13 APR 4.06 +/- 0.35 MAY 5.24 +/ 0.71 JUN 4,36 +/- 0.72 JUL 4.48 +/- 0.26 AUG 4.29 +/- 0.93 SEP 4.02 +/- 0.22 OCT 4.18 +/- 0.93 NOV 4.65 +/- 0.35 DEC 4.50 +/- 0.52 DR29 JAN 4.52 +/- 0.84 FEB 4.89 +/- 2.62 Tcylors is. Siren #38 MAR 4.07 +/- 0 85 APR 4.43 +/- 0.07 MAY 5.29 +/- 0.76 JUN 4.40 +/- 0.20 JUL 3.81 +/- 0.13 AUG 4.31 +/- 0.80 SEP 3.92 +/ 0.61 OCT 4.51 +/- 1.41 NOV 4.80 +/- 0.96 DEC 4.71 +/- 0.11 107

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE E Continued Direct Radiation (Results in units of mR/30 days +/- 2a)

Sample Code Month Month

{

DR31 JAN 4.70 +/- 0.12 FEB 4.83 +/- 0.65 i

C mbridge MAR 4.76 +/- 0.76 APR 5.34 +/- 1,17 MAY 5.20 +/- 0.87 JUN 5.49 +/- 1.57 JUL 4.64 +/- 1.61 AUG 4.22 +/- 2,10 SEP 4.56 +/- 0.49 OCT 4.52 +/- 1.00 NOV 5.46 +/- 0.70 DEC 4.90 +/- 0.80 DR32 JAN 3.31 +/- 0.15 FEB 3.15 +/- 0.78 Twinings Property, MAR 3.83 +/- 1.28 APR 4.15 +/- 1.59 Tcylor Island MAY 3.30 +/- 1.12 JUN 3.39 +/- 0.70 JUL 3.58 +/- 1.29 AUG 3.60 +/- 0.68 SEP 2.90 +/- 0.49 OCT 3.33 +/- 0.25 NOV 3.34 +/- 0.30 DEC 3.30 +/- 0.67 DR33 JAN 4.98 +/- 0.29 FEB 4.71 +/- 0.46 P. A. Ransome Property MAR 4.93 +/- 0.54 APR 5.00 +/- 0.97 MAY 5.62 +/- 1.22 JUN 5.08 +/- 0.96 JUL 5.43 +/- 0.45 AUG 5.48 +/- 0.21 SEP 4.27 +/- 0.69 OCT 4.63 +/- 0,44 NOV 5.05 +/- 0.60 DEC 4.74 +/- 0.54 DR34 JAN 3.18 +/- 0.66 FEB 3.41 +/- 1.30 Shoreline at Barge MAR 3.34 +/ 0.34 APR 3.77 +/- 0.99 Rd.

MAY 4.23 +/- 0.28 JUN 3.41 +/- 0.78 JUL 3.37 +/- 1.08 AUG 3.57 +/- 0.52 SEP 2.51 +/- 0.30 OCT 2.82 +/- 0.32 NOV 3.29 +/- 0.20 DEC 3.22 +/- 0.50 P

t

-108 t

I January 1 - December 31,1996 Docket Nos. 50-317/313 TAllLE E-11 Direct Itadiation from Itesin Storage Area (Itesults in units of mIt/30 days +/- 20)

Simpb Code Month Month RPDR05 JAN FEB 3.55 +/- 0.94 North Fcnce Lower MAR 3.65 +/- 0.36 APR 4.64 +/- 0.67 MAY 6.05 +/- 0.35 JUN 4.60 +/- 0.39 JUL 10.47 +/- 4.36 AUG 3.69 +/- 0.41 SEP 4.53 +/- 0.88 OCT 5.12 +/- 0.65 NOV 5.97 +/- 1.77 DEC 5.39 +/- 0.59 RPDR06 JAN FEB 3.63 +/- 0.77 North Fcnce Upper MAR 3.76 +/- 1.24 APR 4.25 +/- 1.83 MAY 5.66 +/- 1.42 JUN 5.55 +/- 0.94 JUL 18.50 +/- 7.83 AUG 4.55 +/.0.61 SEP 5.95 +/- 0.50 OCT 6.77 +/- 0.25 NOV 7.30 +/- 0.79 DEC 6.47 +/- 0.45

%PDR07 JAN FEB 4.32 +/- 1.02 W:st Fence Right MAR 4.33 +/- 0 27 APR 5.11 +/- 0.59 MAY 7.05 +/- 0.41 JUN 11.32 +/- 3.54 JUL 14.61 +/- 1.71 AUG 8.78 +/- 1.91 SEP 19.04 +/- 1.69 OCT 19.02 +/- 2.51 NOV 18.62 +/- 2.42 DEC 16.34 +/- 1.41 RPDR08 JAN FEB 3.71 +/- 0.51 W;st Fence Left MAR 4 39 +/- 0.74 APR 4.94 +/- 0.76 MAY 6.17 +/- 0.79 JUN 10.17 +/- 2 84 JUL 12.05 +/- 0.93 AUG 7.50 +/- 1.06 SEP 39.06 +/- 8.30 OCT 59.03 +/- 6.78 NOV 66.25 +/- 8 29 DEC 52.35 +/- 2.22 RPDR09 JAN FEB 4.49 +/- 2.06 South Fence Lower MAR 4.07 +/- 0 41 APR 4.75 +/- 1.96 MAY 4.63 +/- 2.86 JUN 7.09 +/- 0.52 JUL 4.94 +/- 0.36 AUG 23.06 +/- 0.24 SEP 6.98 +/- 0.87 OCT 3.79 +/- 2.19 NOV 8.71 4/-1.06 DEC 8.61 +/- 0.61 RPDR10 JAN FEB 4.59 +/- 3.74 South Fence Upper MAR 4.67 +/- 0.37 APR 5.96 +/- 0.50 MAY 6.79 +/- 1.86 JUN 8 96 +/- 0.80 JUL 8 44 +/- 15 60 AUG 7.84 +/- 1.33 SEP 4.85 +/- 0.58 OCT 5.00 +/- 1.30 NOV 5.80 +/- 2.02 DEC 5.57 +/- 1.11 0 TI.th deplo, sed in 55t5ruars 1996 l

109

January 1 - December 31,1996 Docket Nos. 50-317/318 TAllLE E Continued Direct Radiation from Resin Storage Area (Results in units of mR/30 days +/-20)

Simple Code Month Month RPDR11 JAN FEB 3.52 +/- 1.27 Erst Fence Left MAR 3.41 +/- 0.58 APR 7.91 +/- 2.43 MAY 12 26 +/- 1.46 JUN 9.81 +/- 1.66 JUL 9.56 +/- 2.05 AUG 7.15 +/- 0.52 SEP 8.06 +/- 0_91 OCT 6.82 +/- 0.73 NOV 8.02 +/- 0.85 DEC 7.80 +/- 0.67 RPDR12 JAN FEB 3.90 +/- 2,14 East Fence Right MAR 3.42 +/- 0.12 APR 4.46 +/- 1.77 MAY 8.99 +/- 3.22 JUN 4.90 +/- 0.54 JUL 5.63 +/- 1.67 AUG 3.70 +/- 0.49 SEP 3.89 +/- 0.10 OCT 3.85 +/- 0.67 NOV 4.65 +/- 0.58 DEC 4.68 +/- 0.64

?

ITLDs deployed in February 1996 110