Text

Independent Spent Fuel Storage Installation, Docket No.72-8 - Radiological Environmental Monitoring Program Annual Report
	ML011340212
Person / Time
Site:	Calvert Cliffs
Issue date:	05/09/2001
From:	Earls C; Constellation Nuclear
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	+kBR1SISP20060313, -RFPFR
	Download: ML011340212 (114)
	v • d • e

1650 Calvert Cliffs Parkway Lusby, Maryland 20657 Nuclear Constellation Calvert Cliffs Nuclear Power Plant A Member of the Constellation Energy Group May 9, 2001 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 Report

REFERENCES:

(a) Calvert Cliffs Nuclear Power Plant Technical Specification 5.6.2 (b) Calvert Cliffs Independent Spent Fuel Storage Installation Technical Specification 6.2 In accordance with References (a) and (b), Calvert Cliffs Nuclear Power Plant is submitting the Annual Radiological Environmental Monitoring Report, dated March 2001.

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

Very truly yours, C. E. Earls General Supervisor - Chemistry CEE/MJY/bjd Attachment cc: R. S. Fleishman, Esquire H. J. Miller, NRC J. E. Silberg, Esquire Resident Inspector, NRC Director, Project Directorate I-1, NRC R. I. McLean, DNR D. M. Skay, NRC P. Perzynski, MDE V// ý

Constellation Energy Group RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Annual Report MARCH 2001 Calvert Cliffs Nuclear Power Plant Units 1 and 2 and the Independent Spent Fuel Storage Installation January 1 to December 31, 2000

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM FOR THE CALVERT CLIFFS NUCLEAR POWER PLANT UNITS 1 AND 2 AND THE INDEPENDENT SPENT FUEL STORAGE INSTALLATION January 1 - December 31, 2000 G. K. BARLEY L. J. BARTAL, Ph.D.

A. J. KAUPA CONSTELLATION ENERGY GROUP MARCH 2001

(LEFT BLANK)

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE OF CONTENTS LIST O F FIG U RES ........................................................................................................................... iii LIST O F TABLES ............................................................................................................................... v I. SUM MA RY ....................................................................................................................................... 1 II. CALVERT CLIFFS NUCLEAR POWER PLANT .............................................................. 3 II.A. INTRODUCTION .................................................................................................................................................. 3 II.B. PROGRAM .............................................................................................................................................................

II.B.1 Objectives ....................................................................................................................................................... 3 II.B.2 Sample Collection .......................................................................................................................................... 4 II.B3.3 Data Interpretation ....................................................................................................................................... 4 I.B.4 Program Exceptions ...................................................................................................................................... 4 II.C. RESULTS AND DISCUSSIONS .......................................................................................................................... 4 II.C. 1 Aquatic Environment ................................................................................................................................. 5 I.C.l.a Bay W ater ................................................................................................................................................... 5 I.C.l.b Aquatic Or anisms ..................................................................................................................................... 5 II.C..c Shoreline Sediment .................................................................................................................................... 6 II.C.2 Atmospheric Environment ......................................................................................................................... 9 II.C.2.a Air Particulate Filters ................................................................................................................................. 9 II.C.2.b Air Iodine .................................................................................................................................................... 9 II.C.3 Terrestrial Environment ........................................................................................................................... 9 II.C.3.a Vegetation .................................................................................................................................................. 11 II.C.4 Direct Radiation ....................................................................................................................................... 11 II.D. CONCLUSION .................................................................................................................................................... 13 III. INDEPENDENT SPENT FUEL STORAGE INSTALLATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ..................................................... 21 III.A. INTRODUCTION .............................................................................................................................................. 21 III.B. PROGRAM ......................................................................................................................................................... 21 III.B.1 Objiectives .................................................................................................................................................... 21 II.B S.2 Sample Collection ....................................................................................................................................... 22 II.B3.3 Data Interpretation .................................................................................................................................... 22 I1II.B.4 Program Exceptions ................................................................................................................................... 22 III.C. RESULTS AND DISCUSSIONS ....................................................................................................................... 22 III.C.1 Atmospheric Environment ..................................................................................................................... 22 III.C.l.a Air Particulate Filters ............................................................................................................................. 22 III.C.2 Terrestrial Environment .......................................................................................................................... 23 III.C.2.a Vegetation ................................................................................................................................................ 23 III.C.2.b Soils ........................................................................................................................................................... 23 III.C.3 Direct Radiation ....................................................................................................................................... 24 III.D. CONCLUSION ................................................................................................................................................... 25 IV . REFEREN CE S ............................................................................................................................ 29 A PPEN DIX A ..................................................................................................................................... 33 A PPEN D IX B ..................................................................................................................................... 47 A PPEN D IX C ..................................................................................................................................... 71 APPEN D IX D ..................................................................................................................................... 87 A PPEN DIX E ..................................................................................................................................... 89

January 1 - December 31, 2000 Docket Nos. 50-317/318 (LEFT BLANK) ii

January 1 - December 31, 2000 Docket Nos. 50-317/318 LIST OF FIGURES Figure Title Page 1 Tritium in Chesapeake Bay W ater ....................................................................................... 7 2 Silver-1 10m and Potassium-40 in Chesapeake Bay Oysters .............................................. 8 3 Nuclear Fallout in the Calvert Cliffs Area ......................................................................... 10 4 Mean TLD Gamma Dose, Calvert Cliffs Nuclear Power Plant .......................................... 12 5 Atmospheric Dispersion Around CCNPP 2000 Average Relative Air Concentrations ......... 15 6 Atmospheric Dispersion Around CCNPP 2000 Average Relative Ground Deposition .......... 17 7 Mean TLD Gam m a Dose, ISFSI ......................................................................................... 26 A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs Nuclear P ow er P lant ................................................................................................................ 38 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-2 Miles .................................. 39 A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-10 Miles ................................ 41 A-4 Independent Spent Fuel Storage Installation Sampling Locations ..................................... 44 A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations ........ 45 iii

January 1 - December 31, 2000 Docket Nos. 50-317/318 (LEFT BLANK) iv

January 1 - December 31, 2000 Docket Nos. 50-317/318 LIST OF TABLES Table Title Page I Synopsis of 2000 Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring P rog ram ................................................................................................................................................ 19 2 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant U n its and d 2 ........................................................................................................................................ 20 3 Synopsis of 2000 Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Radiological Environmental Monitoring Program ........................................................................ 27 4 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation ................................................................................. 28 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 C alvert C liffs ................................................................................................................. 43 B-1 Concentration of Tritium and Gamma Emitters in Bay Water ....................................................... 50 B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish ....................................................... 51 B-3 Concentration of Gamma Emitters in Oyster Samples .................................................................. 52 B-4 Concentration of Gamma Emitters in Shoreline Sediment .............................................................. 53 B-5 Concentration of Iodine-131 in Filtered Air .................................................................................... 54 B-6 Concentration of Beta Emitters in Air Particulates ......................................................................... 56 B-7 Concentration of Gamma Emitters in Air Particulates .................................................................. 60 B-8a Concentration of Gamma Emitters in Vegetation Samples ........................................................... 61 B-8b Concentration of Gamma Emitters in Vegetation From Locations Around the IFSFI ................... 63 B-9 Concentration of Gamma Emitters in Soil Samples From Locations Around the ISFSI ............... 64 B-10 Typical MDA Ranges for Gamma Spectrometry ............................................................................ 65 B-11 Typical LLDs for Gamma Spectrometry ........................................................................................ 66 B - 12 Direct Radiation ................................................................................................................................... 67 C-1 Results of Participation in Analytics Cross Check Program ........................................................... 75 C-2 Results of Quality Assurance Program for 2000 ............................................................................. 77 C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry .................................. 86 D -1 L and U se C ensus .................................................................................................................................. 87 E- I Locations of Non-ODCM Environmental Sampling Stations for Calvert Cliffs Nuclear Power P lant ...................................................................................................................................................... 92 E-2 Synopsis of 2000 Calvert Cliffs Nuclear Power Plant Non-ODCM Radiological Environmental 93 M onitoring Program .............................................................................................................................

E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units 1 & 2 Non-ODCM Radiological Environmental Monitoring Program ................................................................................................ 94 E-4 Concentration of Gamma Emitters in Bottom Sediment ................................................................ 95 E-5 Concentration of Iodine-131 in Filtered Air .................................................................................. 96 E-6 Concentration of Beta Emitters in Air Particulates ......................................................................... 98 E-7 Concentration of Gamma Emitters in Air Particulates ...................................................................... 100 E-8 Concentration of Tritium and Gamma Emitters in Taylors Island Well Water ................................. 101 E-9 Direct Radiation as Measured in Pressurized Ion Chamber .............................................................. 102 E - 10 D irect R adiation ................................................................................................................................. 103 E-11 Direct Radiation from Interim Resin Storage Area ........................................................................... 104 V

January 1 - December 31, 2000 Docket Nos, 50-317/318 (LEFT BLANK) vi

January 1 - December 31, 2000 Docket Nos. 50-317/318 I.

SUMMARY

During the 2000 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 Off-Site Dose Calculation Manual (ODCM), Sections 3/4.12 (6).

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, radiochemical analyses were performed on quality assurance samples as part of an internal and external quality assurance program associated with Teledyne Brown Engineering, Environmental Services. Performance evaluation samples obtained from the Analytics' Inc.

Cross-Check Program were also analyzed.

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 from the program when the Environmental Technical Specifications were changed in March 1985 and to satisfy our commitment to the community.

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

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 required by the ODCM, were performed by analyzing TLDs from forty locations surrounding CCNPP and the ISFSI.

I

January 1 - December 31, 2000 Docket Nos. 50-317/318 Low levels of various man-made fission were observed in the environment surrounding the plant during 2000. 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., H-3 in quarterly composited bay water samples and Ag- 11Gm in oyster samples).

To assess the plant's contribution to the radiation levels of the ambient environment, 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 1.81 x 10-2 mrem via liquid and gaseous pathways, which is about 0.02% of the acceptable limit of 75 mrem/yr as specified in 40 CFR 190;

b. a maximum whole body dose of 1.79 x 10.2 mrem via liquid and gaseous pathways, which is < 0.1% of the acceptable limit of 25 mrem/yr as specified in 40 CFR 190;

c. a maximum calculated dose to all other organs via liquid and gaseous pathways was equal to 2.11 x 10' mrem to the GI-Tract. This dose was <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 1 and 2 and the ISFSI did not cause any significant radiological impact on the surrounding environment during 2000.

2

January 1 - December 31, 2000 Docket Nos. 50-317/318 II. CALVERT CLIFFS NUCLEAR POWER PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM II.A. INTRODUCTION Constellation Energy Group (CEG), previously known as Baltimore Gas and Electric Company, has been conducting a radiological environmental monitoring program in the environs of the Calvert Cliffs Nuclear Power Plant since the summer of 1970. The Calvert Cliffs site is an operating nuclear generating station consisting of two pressurized water reactors. Unit 1 achieved criticality on October 7, 1974 and commenced commercial operation in May 1975.

Unit 2 achieved criticality on November 30, 1976 and went into commercial operation April 1, 1977.

Originally the Radiological Environmental Monitoring Program (REMP) was conducted under separate Environmental Technical Specifications (1, 2). On July 29, 1977 the monitoring program began operation under a combined set of Technical Specifications (3) 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 (4). 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. (5)

Results of the monitoring program for the pre-operational and previous operational periods through December 31, 1997 have been reported in a series of documents (16-5 1).

Results of the monitoring program for the current operational period of January 1, 2000 through December 31, 2000 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 2000 (Table 2), a compilation of the analytical data for 2000 (Appendix B), the results of the Analytics Intercomparison Program and the Quality Assurance Program (Appendix C), the results of the Land Use Census (Appendix D), and a compilation of the analytical data for extra samples collected in 2000 (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 2000.

II.B. PROGRAM II.B.1 Objectives The objectives of the REMP for the Calvert Cliffs Nuclear Power Plant are:

3

January 1 - December 31, 2000 Docket Nos. 50-317/318

a. To verify that radioactivity and ambient radiation levels attributable to plant operation are within the limits specified in the ODCM (6) and the Environmental Radiation Protection Standards as stated in 40 CFR Part 190,

b. To detect any measurable buildup of long-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.

II.B.2 Sample Collection The locations of the individual sampling stations are listed in Table A-i and shown in Figures A 2 and A-3. All samples were collected by contractors to, or personnel of, CEG according to Calvert Cliffs Nuclear Power Plant Procedures (7).

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.

II.B.4 Program Exceptions For the period 1998 through 2000, oysters have not been available at Kenwood Beach (1a6) which is the designated control (background) location. During this time control samples were obtained from an alternate location at Hog Island (Ial 0). In addition to the challenges encountered at Kenwood Beach, the amount of oysters available at the plant site location, Camp Conoy (1a3), was greatly diminished in 1999 and 2000. Due to these ongoing problems with oyster collection, special sampling platforms were deployed in 2000. This approach should ensure that the population of oysters will be adequate to support the REMP.

II.C. RESULTS AND DISCUSSIONS All the environmental samples collected during the year were analyzed using Constellation Power Source Generation (CPSG) laboratory procedures (8). 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.

These categories are further divided into subcategories according to sample type (e.g., Bay Water, Aquatic Organisms, etc., for the Aquatic Environment).

4

January 1 - December 31, 2000 Docket Nos. 50-317/318 II.C.1 Aquatic 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.l.a Bay 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 in each of the four quarters, while detectable readings were observed in the Intake (Wal) in three of the four quarters. It is not unusual to observe occasional tritium in the Intake as a result of bay water recirculation. The concentrations observed in the discharge ranged from 78+/-36 to 791+/-45 pCi/L and the results in the intake ranged from <MDA to 68+/-37 pCi/L, which are similar to those ranges observed in previous years, (22-51).

Figure 1 compares tritium observed in the plant discharge and intake with annual effluent releases in 2000 as reported in the Radioactive Effluent Release Report.

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

II.C. 1.b Aquatic Organisms Samples of aquatic organisms were obtained from four locations during the year. Samples of fish, when in season, are normally collected from the Intake-Discharge Area (sample codes Ial and Ia2) and from the Patuxent River (sample codes Ia4 and Wa5). 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 were obtained quarterly from Camp Conoy (sample code 1a3), Hog Island (sample code Ial 0), and Kenwood Beach (sample code Ia6) when available. The Hog Island site was utilized as a control location in lieu of Kenwood Beach when samples were unavailable there. In addition, samples of non-commercial mussels were also taken from Camp Conoy when samples of oysters were unavailable there. (Previous studies suggest that mussels may be the biological analogue of oysters when it comes to the uptake of Ag- I10m.) Edible portions of the fish, oyster and mussel samples were analyzed for gamma emitters.

5

January 1 - December 31, 2000 Docket Nos. 50-317/318 Gamma spectrometric analyses of the fish exhibited no detectable concentrations of any plant related radionuclides. Oyster and mussel samples exhibited low levels of detectable concentrations of the plant-related radionuclide, Ag-I1 Om, in samples obtained from Camp Conoy (Ia3). These concentrations, which ranged from 29+/-21 to 195+/-17 pCi/kg, are consistent with that expected due to liquid effluents from the plant during the year 2000. Three of the five quarterly oyster samples taken from Hog Island (Ial 0) and Kenwood Beach (Ia6) also exhibited low levels of Ag-i 10m. These concentrations, which ranged from 8+/-6 to 21+/-9 pCi/kg, are very close to the typical LLD for Ag-11 Om as reported in Table B-11.

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 Wbl). 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.

6

January 1 - December 31, 2000 Docket Nos. 50-317/318 FIGURE 1 Tritium in Chesapeake Bay Water 1 20 0 -- - - .--------.--- - ----- _ - - - - - ___

100 0 CO 800 "03 LU

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75 76 77 78 79 80 81 82 83 I 84 II I 86 85 87 88 89 90 91 92 I

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I 7

K-40 in Oysters Camp Conoy (pCi/kg) Ag-i1 Om in Oysters Camp Conoy (pCi/kg) Ag- 110m in Liquid Effluents (Ci/quarter)

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January 1 - December 31, 2000 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 radioiodine species). These samples were collected from five locations surrounding the plant. These locations are On Site before the Entrance to Camp Conoy (sample code Al), 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).

II.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 2

showed values characteristic of background levels (7-35). The values ranged from 0.3xl0- to 3.9x10" 2 pCi/m 3 for the indicator locations and 0.4x10 -2 to 3.8x10 -2 pCi/m 3 at the control lo cation. The location with the highest overall mean of 1.7x10 -2 pCi/m 3 was Al, Entrance to Camp Conoy.

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 Iodine Weekly composited silver zeolite cartridges (for trapping radioiodine species) were collected from the five locations during the year. These samples were analyzed for radioiodine species.

Weekly radioiodine analyses of silver zeolite cartridges collected from all five locations ex hibited no detectable concentrations of 1-131.

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 growing season.

9

January 1 - December 31, 2000 Docket Nos. 50-317/318 FIGURE 3 Nuclear Fallout in the Calvert Cliffs Area SURFACE AIR VAPORS, LUSBY, MD (A4) 250 200 E

150

.2 ATMOSPHERIC C FALLOUT 0 100 U

0~

50 0

74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 1200 1000 ATMOSPHERIC E FALLOUT from weapons testing 800 0

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0 0 ATMOSPHERIC FALLOUT from W0 400 weapons testing (0

03 0*

ATMOSPHERIC 200 FALLOUT from Chernobyl 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 10

January 1 - December 31, 2000 Docket Nos. 50-317/318 II.C.3.a Vegetation Vegetation samples were collected from three locations during the year. These locations are Garden Plot off Bay Breeze Road (sample codes IbI, 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 Radiation 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.

Thermoluminescent dosimeters were collected quarterly from twenty-three locations surrounding the plant. The twenty indicator locations are On Site Along the Cliffs (sample code DR1), 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 DR5), 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 DRI 1),

Mackall and Bowen Roads (sample code DR12), Wallville (sample code DR13), Rodney Point (sample code DR14), Mill Bridge and Turner Roads (sample code DRI5), Appeal School (sample code DR16), Cove Point and Little Cove Point Roads (sample code DR17), Cove Point (sample code DR1 8), Long Beach (sample code DRI 9), and On Site Near Shore (sample code DR20). The three control locations are the Emergency Operations Facility (sample code DR2 1),

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

The mean 90 day ambient radiation measured at the indicator locations was 10.44 mR and ranged from 7.97 to 13.75 mR as reported in Table 2. The control locations showed a 90 day mean of 12.29 mR with ranges from 10.04 to 14.70 mR. The location with the highest overall mean of 14.12 was DR23, Taylors Island, Carpenters Property, which ranged from 13.49 to 14.70 mR. A comparison of the means and ranges of the current TLD data with those of both the historical data and the regional data (22-51) shows no plant-related contribution to the measured direct radiation exposure for 2000. Figure 4 shows the historical comparison of the average monthly radiation levels per calendar year for TLDs on site, at four miles, and at the control locations.

11

January 1 - December 31, 2000 Docket Nos. 50-317/318 FIGURE 4 Mean TLD Gamma Dose, Calvert Cliffs Nuclear Power Plant T"

.4 Miles (DRIo 0-1D8)

~Control Locatio ns; (DR21. 23)

-On-Site (DR1, 7,8, & 20) 5 4

CD

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1 0

73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 12

January 1 - December 31, 2000 Docket Nos. 50-317/318 II.D. CONCLUSION Low levels of man-made fission by-products were observed in the environment surrounding the plant during 2000. These by-products were related to the operation of the plant (e.g., tritium in quarterly composited bay water samples and Ag- 110m in oysters and mussels).

Historical trends for tritium in bay water, Ag- 11 Gm 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 these figures, the plant.made no adverse radiological contributions to the surrounding environment during 2000.

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 5.05 x 10-) mrem to a child via the plume, ground, vegetable, meat, and inhalation pathways at 2.6 km SW of the containments Calvert Cliffs. This is < 0.01% of the acceptable limit of 75 mrem/year as speci fied in 40 CFR 190, "Environmental Radiation Protection Standards for Nuclear Power Operations."

A maximum whole body gamma dose of 2.38 x 10- 4 mrem to a child at 2.1 km SE of the containments at Calvert Cliffs, which is < 0.0 1% 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 the skin, of 1.90 x 10-3 mrem at 2.1 km SE of the containments at Calvert Cliffs. This is <0.01% of the acceptable dose limit of 25 mrem/year as specified in 40 CFR 190.

Liquid Pathways A maximum thyroid dose of 1.30 x 10-2 mrem to an adult for all liquid pathways, which is about 0.02% of the acceptable dose limit of 75 mrem/year as specified in 40 CFR 190.

A maximum whole body dose of 1.77 x 10-2 mrem to an adult via all liquid pathways, which is <0.1% of the acceptable dose limit of 25 mrem/year as stated in 40 CFR 190.

13

January 1 - December 31, 2000 Docket Nos. 50-317/318 A maximum dose to any organ, in this case the GI-Tract, of 2.10 x 10-1 mrem to an adult for all pathways, which is <1% of the acceptable dose limit of 25 mrem/year specified in 40 CFR 190.

Gaseous and Liquid Pathways Combined A maximum thyroid dose of 1.81 x 10- 2 mrem via liquid and gaseous pathways, which is about 0.02% of the acceptable limit of 75 mrem/year specified in 40 CFR 190.

A maximum whole body dose of 1.79 xl 0-2 mrem via liquid and gaseous pathways which is < 0.1% of the acceptable limit of 25 mrem/year as specified in 40 CFR 190.

A maximum calculated dose to all other organs via liquid and gaseous pathways was equal to 2.11 x10- 1 mrem to the GI-Tract. This dose is <1% of the allowable limit of 25 mrem/year as specified in 40 CFR 190.

In all cases, the calculated doses are a small fraction of the applicable limits specified in 40 CFR 190. 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 and there was no significant buildup of radionuclides in the environment due to Calvert Cliffs.

14

S January 1 - December 31, 2000 Docket Nos. 50-317/318 FIGURE 5 Atmospheric Dispersion Around CCNPP 2000 Average Relative Air Concentrations WI tIlt/US)

I .6K-P.t 15 col

.lnuarv I - D'cember 31. 2000 Docket Nos. 50-317/318 (LEFT BLANK) 16

January 1 - December 31, 2000 Docket Nos. 50-317/318 FIGURE 6 Atmospheric Dispersion Around CCNPP 2000 Average Relative Ground Deposition tu017" 0's LtS (1/WE UF' 4.K-*I-l?.-1f p e*.-11-4.E1Ii S 1.it,-11-2,S-11 17 002ý

January 1 - December 31. 2000 Dockel Nos, 50-317/318 (LEFT BLANK) 18

January 1 - December 31, 2000 Docket Nos. 50-317/3 18 Table 1 Synopsis of 2000 Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Sample Type Sampling Number of Number Collected Analysis Analysis Frequency' Number Analyzed Frequency1 Locations Aquatic Environment Bay Water MC 2 24 Gamma M 24 H-3 QC 8 Fish 2 A 2 4 Gamma A 4 Oysters Q 3 7 Gamma Q 7 Shoreline Sediment SA 1 2 Gamma SA 2 Atmospheric Environment Air Iodine 3 W 5 259 1-131 W 259 Air Particulates 4 W 5 259 Gross Beta W 259 Gamma MC 60 Direct Radiation Ambient Radiation Q 23 540 TLD Q 540 Terrestrial Environment Vegetation5 M 3 45 Gamma M 45 W-weekly, M-monthly, Q-quarterly, SA-semiannual, A-annual, C-composite 2 Once in Season, July Through September The collection device contains silver zeolite Beta counting is perfomed after > 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months decay. Gamma spectroscopy performed on monthly composites of weekly samples Monthly during Growing Season 19

January 1 - December 31, 2000 Docket Nos. 50-3 17/318 Table 2 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant Units 1 and 2 Medium or Pathway Type and Total Lower Limit Indicator Location with Highest Annual Control Locations Sampled (Unit of Number of of Detection Locations Mean Highest Annual Mean (F) / Range 1 Mean (F)/Range 1 Measurement) Analyses (LLD) (F)/Range 1 Mean Performed Name/Distance 2 Direction Aquatic Environment Bay Water H-3 (8) 54 419 (4/4) Discharge Vicinity 419 (4/4) 56 (3/4)

(pCi/L) (78-791) Wa2 (78-791) (39-68) 0.3 km N Oysters Gamma (7) 14 125 (2/3) Camp Conoy la3 125 (2/3) 13 (3/5)

(pCi/kg) Agl10m (119-132) 0.9 km E (119-132) (8-21)

Atmospheric Environment Air Particulates Gross Beta (259) 0.5 1.4 (207/207) Entrance to Camp 1.7 (51/52) 1.6 (52/52)

(10-2 pCi/m 3 ) (0.3-3.9) Conoy Al (0.6-3.6) (0.4-3.8) 0.7 km SE Direct Radiation Ambient Radiation TLD (540) 10.44 (480/480) Taylors Island 14.12 (24/24) 12.29 (60/60)

(mR/90 days) (7.97-13.75) DR23 (13.49-14.70) (10.04-14.70) 12.6 km ENE 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.

20

January 1 - December 31, 2000 Docket Nos. 50-317/318 III. INDEPENDENT SPENT FUEL STORAGE INSTALLATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 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, 2000 through December 31, 2000 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). Pressurized Ion Chambers, because they duplicate direct surveillance by TLDs and because they experience problems with reliability, were excluded from the Technical Specification portion of the ISFSI REMP (9). Pressurized Ion Chambers' results, however, are given in table E-9 and will continue to be a non-ODCM surveillance to satisfy our commitment to the community.

The results for 2000 were compared with that generated during the previous ISFSI pre operational periods (10) and the current and previous CCNPP REMP periods (22-5 1). 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 III.C.

III.B. PROGRAM III.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 of long-lived radionuclides in the environment due to the ISFSI, 21

January 1 - December 31, 2000 Docket Nos. 50-317/3 18

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 contractors to, or personnel of, CPSG personnel according to CPSG Procedures (8).

III.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 Program Exceptions There were no program exceptions during 2000.

III.C. RESULTS AND DISCUSSIONS All the environmental samples collected during the year were analyzed using CPSG's laboratory procedures (8). 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 according to sample type (e.g., Vegetation and Soil for Terrestrial Environment).

III.C. 1 Atmospheric Environment The atmospheric environment was monitored by analyzing air particulate filters. These samples were collected from five locations surrounding the ISFSI.

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

III.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 Visitor's Center (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, 2000 Docket Nos. 50-317/318 Weekly analyses for beta activity on air particulate filters collected from all five locations showed values characteristic of levels routinely observed in the REMP (22-51). These values 2

ranged from 0.4x1 0-2 to 4.6x10- 2 pCi/m for the indicator locations and 0.4x10- to 3.4x10-2 3

pCi/m 3 for the control location. The location with the highest overall mean of 1.8x1 0-2 pCi/m3 was SFA4, South of ISFSI.

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

III.C.2 Terrestrial 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.

III.C.2.a Vegetation Vegetation samples were collected quarterly from five locations during the year. These locations are: Meteorological Station (sample code SFbl), CCNPP Visitor's 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 exhibited no detectable concentration of any plant-related radionuclides in any of these samples.

III.C.2.b Soils Soil samples were collected quarterly from five locations surrounding the ISFSI in the vicinity of the air samplers. These locations are: Meteorological Station (sample code SFS1), CCNPP Visitor's 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 twelve quarterly samples from both indicator and control locations. The Cs-137 concentrations ranged from 59+/-25 to 727+/-91 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 activities of this radionuclide 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 REMP (22-51) and in the earlier pre-operational data for the ISFSI (10).

23

January 1 - December 31, 2000 Docket Nos. 50-317/318 III,C.3 Direct Radiation Direct radiation is measured by a network of TLDs surrounding the ISFSI. These thermo luminescent dosimeters are collected quarterly from seventeen locations surrounding the ISFSI, plus one control TLD location at the Visitor's 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 of ISFSI (sample code SFDRI); N of ISFSI (sample code SFDR2); NNE of ISFSI, sample code SFDR3; NE of ISFSI (sample code SFDR4); E of ISFSI (sample code SFDR5); ESE of ISFSI (sample code SFDR6); North Northwest of ISFSI (sample code SFDR8); South of ISFSI (sample code SFDR9); NNW of ISFSI (sample code SFDR1O); WNW of ISFSI (sample code SFDR11); West of ISFSI (sample code SFDR12); SSW of ISFSI (sample code SFDR13); SSE of ISFSI (sample code SFDR14); ENE of ISFSI (sample code SFDR15); and WSW of ISFSI (sample code SFDR16). Sampling locations are shown on Figures A-4 and A-5.

The mean 90 day ambient radiation measured at the ISFSI indicator locations was 17.13 mR and ranged from 8.57 to 39.13 mR as reported in Table 4. The control location showed a 90 day mean of 11.61 mR and ranged from 10.78 to 12.32 mR. A comparison of the mean and ranges of the current TLD data with those of both the historical data and the regional data (22-51, 10) reveals only one set of elevated TLD readings. That location with the highest overall mean of 35.67 mR with a range of 30.10 to 39.13 mR was SFDR1O, North Northwest of ISFSI. These readings are consistent with those expected from the storage of spent fuel in the ISFSI (22-51, 10). A comparison of the average monthly radiation levels per calendar year of the ISFSI TLD data from the indicator locations with the ISFSI control location at the Visitor's Center, SFDR7, can be seen in Figure 7.

24

January 1 - December 31, 2000 Docket Nos. 50-317/318 IIL.D. CONCLUSION Low levels of Cs-137 were observed in the environment surrounding the ISFSI during the period.

The Cs- 137 observations were attributed to fallout from past atmospheric weapons testing.

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 (22-51).

25

January 1 - December 31, 2000 Docket Nos. 50-317/318 FIGURE 7 Mean TLD Gamma Dose, ISFSI 7

SControl Location (SFDR7) 6

-.0_SFSIMean (DR7 & 30, SFDR1-6, 8-16) 5 Y)

(13 4 3

E 2

1 0

90 91 92 93 94 95 96 97 98 99 00 26

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table 3 Synopsis of 2000 Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Radiological Environmental Monitoring Program Sample Type Sampling Number of Locations Number Collected Analysis Analysis Frequency1 Number Analyzed Frequency1 Atmospheric Environment Air Particulates 2 W 5 256 Gross Beta W 256 Gamma MC 60 Direct Radiation Ambient Radiation Q 18 432 TLD Q 432 Terrestrial Environment Vegetation Q 5 20 Gamma Q 20 Soil Q 5 20 Gamma Q 20

' W-weekly, M-monthly, Q-quarterly, SA-semiannual, A-annual, C-composite 2 Beta counting is perfomed after > 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months decay. Gamma spectroscopy performed on monthly composites of weekly samples 27

January 1 - December 3 1, 2000 Docket Nos. 50-317/318 Table 4 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Medium or Pathway Type and Lower Limit Indicator Location with Highest Highest Control Sampled (Unit of Total of Detection Locations Mean Annual Mean Annual Mean Locations Measurement) Number of (LLD) (F)/Range' Name/Distance & (F) / Range' Mean Analyses Direction-2 (F)/Range' Performed Atmospheric Environment Air Particulates Gross Beta 0.5 1.6 (204/204) South ofISFSI SFA4 1.8 (51/52) 1.6 (52/52)

(10-2 pCi/nQ) (256) (0.4-4.6) 0.1 km S (0.5-4.6) (0.4-3.4)

Direct Radiation Ambient Radiation TLD (432) 17.13 (408/408) NNW of ISFSI 35.67 (24/24) 11.61 (24/24)

(mR/90 days) (8.57-39.13) SFDR10 (30.10-39.13) (10.78-12.32) 0.1 kIn NNW Terrestrial Environment Soil Gamma (20) 17 413 (8/16) NNW ofISFSI SFS3 457 (4/4) 104 (4/4)

(pCi/kg) Cs-137 (208-727) 0.1 km NNW (208-727) (59-160)

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

2 From the centerpoint of the ISFSI facility.

28

January 1 - December 31, 2000 Docket Nos. 50-317/318 IV. REFERENCES (1) Calvert Cliffs Nuclear Power Plant, Unit Number 1, License No. DPR-53, Appendix A, Technical Specifications; Appendix B, Environmental Technical Specifications.

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

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

(4) Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 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.

(5) Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 and 2, License Nos. DPR-53 and DPR 69, Amendment No. 217 for Unit No. 1, Amendment No. 194 for Unit No. 2, October 1996.

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

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

(8) Constellation Power Source Generation (CPSG), Chemistry and Materials Engineering &

Analysis Laboratory Procedures Manual, Fossil Engineering and Maintenance Dept.

(9) 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.

(10) 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.

(11) Teledyne Brown Engineering Environmental Services, Laboratory Procedures.

(12) Constellation Energy Group, "Land Use Census Around Calvert Cliffs Nuclear Power Plant."

(13) Calvert Cliffs Nuclear Power Plant, Docket Nos. 50-317/318 Semiannual Effluent Release Reports: January - June 2000 and July - December 2000.

(14) 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.

29

January 1 - December 31, 2000 Docket Nos. 50-317/3 18 (15) U.S. NRC Regulatory Guide 1.111, "Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light-Water-Cooled Reactors", Revision 1, July 1977.

(16 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.

(17) Cohen, L. K., "Preoperational Environmental Radioactivity Monitoring Program at Calvert Cliffs Units 1 and 2", NUS No. 1137 Annual Report 1972, December 1973.

(18) Cohen, L. K. and Malmberg, M. S., "Preoperational Environmental Radioactivity Monitoring Program at Calvert Cliffs Units 1 and 2", NUS No. 1188, Annual Report 1973, October 1974.

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

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

(21) 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.

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

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

(24) Radiation Management Corporation, Radiological Environmental Monitoring Program Semiannual Report for Calvert Cliffs Nuclear Power Plant, July 1 through December 31, 1974, RMC-TR-75-06, August 1975.

(25) 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.

(26) 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.

(27) 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.

30

January 1 - December 31, 2000 Docket Nos. 50-317/318 (28) 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) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31, 1977, March 1978.

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

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

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

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

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

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

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

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

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

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

31

January 1 - December 31, 2000 Docket Nos. 50-317/318 (40) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 3 1, 1988, March 1989.

(41) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31, 1989, March 1990.

(42) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 3 1, 1990, March 1991.

(43) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31, 1991, March 1992.

(44) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31, 1992, March 1993.

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

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

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

(48) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31, 1996, March 1997.

(49) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31, 1997, March 1998.

(50) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31, 1998, March 1999.

(51) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 3 1, 1999, March 2000.

January 1 - December 31, 2000 Docket Nos. 50-317/318 APPENDIX A Appendix A contains information concerning the environmental samples which were collected during the period January 1, 2000 to December 31, 2000.

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

January 1 - December 31, 2000 Docket Nos. 50-317/3 18 (LEFT BLANK) 34

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE OF CONTENTS - SAMPLING LOCATIONS Table Title Page 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 Figure Title Page A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs N uclear Pow er Plant ................................................................................................................ 38 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-2 Miles .................................. 39 A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-10 Miles ................................ 41 A-4 Independent Spent Fuel Storage Installation Sampling Locations ..................................... 44 A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations ........ 45 35

January 1 - December 31, 2000 Docket Nos. 50-317/318 (LEFT BLANK) 36

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE A-1 Locations of Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant Distance' Direction' Station Description (KM) (Miles) (Sector)

Al12 On Site before Entrance to Camp Conoy 0.7 0.4 S A2 Camp Conoy at Emergency Siren 2.5 1.6 SSE A3 Bay Breeze Road 2.6 1.6 SE A4 Route 765 Lusby 2.9 1.8 SSW A5 Emergency Operations Facility (EOF) 19.3 12.0 WNW DRI On Site along Cliffs 0.6 0.4 NW DR2 Route 765, Auto Dump 2.7 1.7 WNW DR3 Route 765, Giovanni's Tavern (Knotty Pine) 2.3 1.4 W DR4 Route 765, across from White Sands Drive 2.0 1.2 WSW DR5 Route 765, John's Creek 2.4 1.5 SW DR6 Route 765 Lusby 2.9 1.8 SSW DR72 On Site before Entrance to Camp Conoy 0.7 0.4 S DR8 Camp Conoy at Emergency Siren 2.5 1.6 SSE DR9 Bay Breeze Road 2.6 1.6 SE DR1O Calvert Beach Rd. and Decatur Street 6.4 4.0 NW DR 1I Dirt road off Mackall & Parran Roads 6.6 4.1 WNW DR12 Mackall and Bowen Roads 6.7 4.2 W DR13 Mackall Rd. near Wallville 6.1 3.8 WSW DRI4 Rodney Point 6.4 4.0 SW DRI 5 Mill Bridge and Turner Roads 6.2 3.9 SSW DR16 Across from Appeal School 6.5 4.0 S DR17 Cove Point and Little Cove Point Roads 5.9 3.7 SSE DR18 Cove Point 7.1 4.4 SE DR19 Long Beach 4.4 2.7 NW DR20 On Site near shore 0.4 0.2 NNW DR21 Emergency Operations Facility (EOF) 19.3 12.0 WNW DR22 Solomons Island 12.5 7.8 S DR23 Taylors Island, Carpenter's Property 12.6 7.8 ENE Ial,2 Discharge Area 0.3 0.2 N Ia3 Camp Conoy 0.9 0.6 E Ia4,5 Patuxent River N/A N/A N/A Ia6 Kenwood Beach 10.7 6.6 NNW IalO Hog Island 15.3 9.5 SSE lb 1,2,3 Garden Off Bay Breeze Road 2.6 1.6 SSE Ib4,5,6 On Site before Entrance to Camp Conoy 0.7 0.4 S Ib7,8,9 Emergency Operations Facility (EOF) 19.3 12.0 WNW Wal Intake Area 0.2 0.1 NNE Wa2 Discharge Area 0.3 0.2 N Wbl Shoreline at Barge Rd. 0.6 0.4 ESE

'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 - December 31, 2000 Docket Nos. 50-317/3 18 FIGURE A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs Nuclear Power Plant 38

January 1 - December 31, 2000 Docket Nos. 50-317/318 FIGURE A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations 0-2 Miles 39

January 1 - December 31, 2000 Docket Nos. 50-31 7/318 (LEFT BLANK) 40

January 1 - December 31, 2000 Docket Nos. 50-317/318 FIGURE A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations 0-10 Miles uuv ACR*

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January 1 - December 31, 2000 Docket Nos. 50-317/318 (LEFT BLANK) 42

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE A-2 Locations of Environmental Sampling Stations for the Independent Spent Fuel Storage Installation at Calvert Cliffs Distance' Direction' Station Description (KM) (Miles) (Sector)

Al 2 On Site before Entrance to Camp Conoy 0.7 0.4 S SFA1 Meteorological Station 0.4 0.2 NW SFA2 CCNPP Visitor's Center 0.7 0.4 NNE SFA3 NNW of ISFSI 0.1 <0.1 NNW SFA4 South of ISFSI 0.1 <0.1 S SFDRl SW of ISFSI 0.1 <0.1 SW SFDR2 North of ISFSI 0.1 <0.1 N SFDR3 NNE of ISFSI 0.1 <0.1 NNE SFDR4 NE of ISFSI <0.1 <0.1 NE SFDR5 East of ISFSI <0.1 <0.1 E SFDR6 ESE of ISFSI 0.1 <0.1 ESE SFDR7 CCNPP Visitor's Center 0.7 0.4 NNE SFDR8 North Northwest of ISFSI 0.1 <0.1 NNW SFDR9 South of ISFSI 0.1 <0.1 S SRDRIO NNW of ISFSI 0.1 <0.1 NNE SFDRI1 WNW of ISFSI 0.1 <0.1 WNW SFDR12 West of ISFSI <0.1 <0.1 W SFDR13 SSW of ISFSI <0.1 <0.1 SSW SFDR14 SSE of ISFSI 0.1 <0.1 SSE SFDR15 ENE of ISFSI <0.1 <0.1 ENE SFDR16 WSW of ISFSI <0.1 <0.1 WSW DR72 On Site before Entrance to Camp Conoy 0.7 0.4 SE DR30 Meteorological Station 0.4 0.2 NW SFb I Meteorological Station 0.4 0.2 NW SFb2 CCNPP Visitor's Center 0.7 0.4 NNE SFb3 NNW of ISFSI 0.1 <0.1 NNW SFb4 South of ISFSI 0.1 <0.1 S SFb5 On Site before Entrance to Camp Conoy 0.7 0.4 SE SFS 1 Meteorological Station 0.4 0.2 NW SFS2 CCNPP Visitor's Center 0.7 0.4 NNE SFS3 NNW of ISFSI 0.1 <0.1 NNW SFS4 South of ISFSI 0.1 <0.I S SFS5 On Site before Entrance to Camp Conoy 0.7 <0. I SE

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

2 Common to both the REMP and ISFSI monitoring program 43

January 1 - December 3 1, 2000 Docket Nos. 50-317/318 FIGURE A-4 Independent Spent Fuel Storage Installation Sampling Locations MRlR- S )cntYudDDrctP dt SFA - Sjt Fud Afr Smpkr PIC -prlrd 1- Ch..ber 44

January 1 - December 31, 2000 Docket Nos. 50-317/318 FIGURE A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations A . AirSampler S

DR - (PLta) Dfrtd Radladon SFDR - Sp.-t FuelDirditdlo SFA Akr S.mnpr Spent Fud PIC - Prsurized Ion Chamber 45

January 1 - December 31, 2000 Docket Nos. 50-317/318 (LEFT BLANK) 46

January 1 - December 31, 2000 Docket Nos. 50-317/318 APPENDIX B Appendix B is a presentation of the analytical results of the 2000 Calvert Cliffs Nuclear Power Plant and the Independent Spent Fuel Storage Installation environmental monitoring programs.

47

January 1 - December 3 1, 2000 Docket Nos. 50-317/318 (LEFT BLANK) 48

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page B-1 Concentration of Tritium and Gamma Emitters in Bay Water ............................................ 50 B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish .......................................... 51 B-3 Concentration of Gamma Emitters in Oyster Samples ....................................................... 52 B-4 Concentration of Gamma Emitters in Shoreline Sediment ................................................. 53 B-5 Concentration of Iodine-131 in Filtered Air ....................................................................... 54 B-6 Concentration of Beta Emitters in Air Particulates ............................................................ 56 B-7 Concentration of Gamma Emitters in Air Particulates ....................................................... 60 B-8a Concentration of Gamma Emitters in Vegetation Samples ................................................. 61 B-8b Concentration of Gamma Emitters in Vegetation From Locations Around the IFSFI ..... 63 B-9 Concentration of Gamma Emitters in Soil Samples From Locations Around the ISFSI ........ 64 B-10 Typical MDA Ranges for Gamma Spectrometry .............................................................. 65 B-1 I Typical LLDs for Gamma Spectrometry ........................................................................... 66 B -12 D irect Radiation ....................................................................................................................... 67 49

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B-1 Concentration of Tritium and Gamma Emitters in Bay Water (Results in units of pCi/L +/- 2cy)

Sample Code Sample Date H-3' Gamma Emitters Wal 01/1512000 Intake Vicinity 02/15/2000 03/15/2000 03/31/2000 62 +/- 37 04/15/2000 05/15/2000 06/15/2000 06/30/2000 <37 07/1 5/2000 08/1 5/2000 09/15/2000 09/30/2000 39 +/- 36 10/15/2000 11/15/2000 12/15/2000 12/31/2000 68 +/- 37 Wa2 01/15/2000 Discharge Vicinity 02/15/2000 03/15/2000 03/31/2000 791 +/- 45 04/1 5/2000 05/15/2000 06/15/2000 06/30/2000 78 +/- 36 07/15/2000 08/15/2000 09/15/2000 09/30/2000 217 +/- 37 10/15/2000 11/15/2000 12/15/2000 12/31/2000 590 +/- 41 Quarterly composite of monthly samples

Non-Natural Gamma Emitters <MDA 50

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish (Results in units of pCi/kg (wet) +/- 2a)

Sample Code Sample Date Sample Type Gamma Emitters lal 07/06/2000 Striped bass

Discharge Area la2 07/06/2000 Spot Discharge Area la41 07/11/2000 Striped bass Patuxent River la5 1 07/07/2000 Spot Patuxent River "Non-Natural Gamma Emitters < MDA

'Control Location 51

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B-3 Concentration of Gamma Emitters in Oyster Samples (Results in units of pCi/kg (wet) +/- 2G)

Sample Code Sample Date Ag110m Gamma Emitters lal 0' 03/24/2000 8+/-6 2

Hog Island 06/20/2000 08/24/2000 21 +/- 9 la3 03/24/2000 Unavailable 3 Camp Conoy 06/20/2000 Unavailable 3 08/11/2000 119 +/- 13 3

08/24/2000 10/18/2000 132 +/- 14 2

Ia6 08/11/2000 Kenwood Beach 10/18/2000 11++/-9 "bNon-Natural Gamma Emitters < MDA Control Location 2 This Isotope < MDA Mussels were collected, 3/24 Ag-1 l0m <MDA 6/20 Ag- 10m 29 +/- 21 8/24 A-- 1Om 195 + 17

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B-4 Concentration of Gamma Emitters in Shoreline Sediment (Results in units of pCi/kg (dry) +/- 2a)

Sample Code Sample Date Gamma Emitters VVbl Shoreline at Barge Rd 03/20/2000 1 09/14/2000 1 INon-Natural Gamma Emitters <MDA

January 1 - December 3 1, 2000 Docket Nos. 50-317/318 Table B-5 Concentration of Iodine-131 in Filtered Air (Results in units of 10-' pCi/m3 +/- 2a)

Start Date Stop Date Al A2 A3 A4 A5' Entrance to Camp Conoy Bay Breeze Route 765 at EOF Camp Conoy Siren Rd Lusby 01/03/2000 01/10/2000 01/10/2000 01/17/2000 01/17/2000 01/27/2000 "k 01/27/2000 01/31/2000 01/31/2000 02/07/2000 02/07/2000 02/14/2000 02/14/2000 02/22/2000 02/22/2000 02/28/2000 02/28/2000 03/06/2000 03/06/2000 03/13/2000 03/13/2000 03/20/2000 03/20/2000 03/27/2000 03/27/2000 04/03/2000 04/03/2000 04/10/2000 04/10/2000 04/17/2000 04/17/2000 04/24/2000 04/24/2000 05/01/2000 05/01/2000 05/09/2000 05/09/2000 05/15/2000 05/15/2000 05/22/2000 05/22/2000 05/30/2000 05/30/2000 06/05/2000 06/05/2000 06/12/2000 06/12/2000 06/19/2000 06/19/2000 06/26/2000 06/26/2000 07/03/2000 07/03/2000 07/10/2000 07/10/2000 07/17/2000 07/17/2000 07/24/2000 07/24/2000 07/31/2000 @r

< MDA Control Location 54

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B Continued Concentration of Iodine-131 in Filtered Air (Results in units of 10- pCi/m3 +/- 2a)

Start Date Stop Date Al A2 A3 A4 A51 Entrance to Camp Conoy Bay Breeze Route 765 at EOF Camp Conoy Siren Rd Lusby 07/31/2000 08/07/2000 * * * *

08/07/2000 08/14/2000 * * * *

08/14/2000 08/21/2000 * * * *

08/21/2000 08/28/2000 * * * *

08/28/2000 09/05/2000 2 . . . .

09/05/2000 09/11/2000 .....

09/11/2000 09/18/2000 .....

09/18/2000 09/25/2000 * * * *

09/25/2000 10/02/2000 * * * *

10/02/2000 10/09/2000 * * * *

10/09/2000 10/16/2000 * * * *

10/16/2000 10/23/2000 * * * *

10123/2000 10/30/2000 * * * *

10/30/2000 11/06/2000 * * * *

11/06/2000 11/13/2000 * * * *

11113/2000 11/20/2000 * * * *

11/20/2000 11127/2000 * * * *

11/27/2000 12/05/2000 * * * *

12/05/2000 12/11/2000 * * * *

12/11/2000 12/18/2000 * * * *

12/18/2000 12/26/2000 * * *

12/26/2000 01/02/2001 * * * *

"< MDA

'Control Location 2

-Sampler malfunction/low flow 55

January 1 - December 31, 2000 Docket Nos. 50-317/31 8 Table B-6 Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/m3 +/- 27)

Start Date Stop Date Al A2 A3 A4 A5 1 Entrance to Camp Conoy Bay Breeze Route 765 at EOF Camp Conoy Siren Rd Lusby 01/03/2000 01/10/2000 1.9 +/- 0.2 1.4 +/- 0.2 1.7 +/- 0.2 2.0 +/- 0.2 1.8 +/- 0.2 01/10/2000 01/17/2000 1.7 +/- 0.2 1.7 +/- 0.2 1.6+/-0.2 1.5+/-0.2 1.6+/-0.2 01/17/2000 01/27/2000 2.9 +/- 0.2 2.4 +/- 0.2 2.1 +/- 0.2 2.5 +/- 0.2 2.5 +/- 0.2 01/27/2000 01/31/2000 2.2 +/- 0.3 1.1 +/- 0.3 1.8 +/- 0.3 1.6+/- 0.3 1.8+/-0.3 01/31/2000 02/07/2000 2.2 +/- 0.2 2.1 +/- 0.2 2.2 +/- 0.2 2.4 +/- 0.2 2.0 +/- 0.2 02/07/2000 02/14/2000 2.6 +/- 0.3 2.4 +/- 0.2 2.7 +/- 0.2 3.0 +/- 0.2 2.1 +/- 0.2 02/14/2000 02/22/2000 1.6 +/- 0.2 1.5 +/- 0.2 1.4 +/- 0.2 1.7+/- 0.2 1.6 +/- 0.2 02/22/2000 02/28/2000 1.4 +/- 0.2 1.3 +/- 0.2 1.4+/- 0.2 1.9 +/- 0.2 1.4 +/- 0.2 02/28/2000 03/06/2000 1.8 +/- 0.2 1.5 +/- 0.2 1.6 +/- 0.2 1.8 +/- 0.2 1.7 +/- 0.2 03/06/2000 03/13/2000 1.6 +/- 0.2 1.9 +/- 0.2 1.7 +/- 0.2 2.1 +/- 0.2 1.6 +/- 0.2 03/13/2000 03/20/2000 1.2 +/- 0.2 1.4 +/- 0.2 1.3 +/- 0.2 1.6 +/- 0.2 1.4 +/- 0.2 03/20/2000 03/27/2000 1.4 +/- 0.2 0.9 +/- 0.2 1.2 +/- 0.2 1.3 +/- 0.2 1.1 +/-0.2 03/27/2000 04/03/2000 1.5+/-0.2 1.3 +/- 0.2 1.4 +/- 0.2 1.6+/- 0.2 1.7 +/- 0.2 04/03/2000 04/10/2000 1.3 +/- 0.2 1.0+/-0.2 1.4 +/- 0.2 1.6 +/- 0.2 1.1 +/-0.2 04/10/2000 04/17/2000 1.1 +/-0.2 0.8 +/- 0.1 1.0 +/- 0.2 1.2 +/- 0.2 1.0+/- 0.2 04/17/2000 04/24/2000 0.6 +/- 0.2 0.3 +/- 0.1 0.4 +/- 0.2 0.4 +/- 0.1 0.4 +/- 0.2 04/24/2000 05/01/2000 1.2 +/- 0.2 0.8 +/- 0.1 1.2 +/- 0.2 1.1 +/-0.2 1.2 +/- 0.2 05/01/2000 05/09/2000 2.3 +/- 0.2 1.2 +/- 0.2 1.1 +/- 0.2 1.8 +/- 0.2 1.9+/- 0.2 05/09/2000 05/15/2000 1.7 +/- 0.3 1.1 +/- 0.2 1.2+/- 0.2 1.5 +/- 0.2 1.5+/- 0.2 05/15/2000 05/22/2000 1.0 +/- 0.2 0.6 +/- 0.2 1.2 +/- 0.2 1.1 +/-0.2 0.8 +/- 0.2 05/22/2000 05/30/2000 0.8 +/- 0.2 0.6 +/- 0.3 0.9 +/- 0.2 0.8 +/- 0.2 1.0+/- 0.2 05/30/2000 06/05/2000 1.2 +/- 0.2 0.6 +/- 0.2 0.8 +/- 0.2 1.0 +/- 0.2 0.9 +/- 0.2 06/05/2000 06/12/2000 1.8+/-0.2 1.1 +/-0.2 1.0 +/- 0.2 1.4 +/- 0.2 1.7 +/- 0.2 06/12/2000 06/19/2000 0.6 +/- 0.2 0.5 +/- 0.2 0.4 +/- 0.2 0.6 +/- 0.2 0.7 +/- 0.2 06/19/2000 06/26/2000 1.3 +/- 0.2 09 +/- 0.2 0.6 +/- 0.2 1.2 +/- 0.2 1.2 +/- 0.2 06/26/2000 07/03/2000 1.5 +/- 0.2 0.8 +/- 0.2 0.6 +/- 0.2 1.1 +/- 0.2 1.6 +/- 0.2 07/03/2000 07/10/2000 1.5+/- 0.2 0.9 +/- 0.2 0.3 +/- 0.2 1.4 +/- 0.2 1.5+/- 0.2 07/10/2000 07/17/2000 1.0+/- 0.2 0.8 +/- 0.2 1.1 +/- 0.2 1.2 +/- 0.2 1.1 +/-0.2 07/17/2000 07/24/2000 1.5+/- 0.2 0.8+/-0.2 0.9 +/- 0.2 1.2 +/- 0.2 14 +/- 0.2 07/24/2000 07/31/2000 0.8+/- 0.2 0.6+/-0.2 0.5 +/- 0.2 0.4 +/- 0.2 0.7 +/- 0.2 07/31/2000 08/07/2000 1.1 +/- 0.2 0.4 +/- 0.2 0.5 +/- 0.2 0.6 +/- 0.2 1.5 +/- 0.2 08/07/2000 08/14/2000 0.7 +/- 0.2 0.6 +/- 0.2 1.0 +/- 0.2 1.3 +/- 0.2 1.4 +/- 0.2 08/14/2000 08/21/2000 1.4 +/- 0.2 0.5 +/- 0.2 0.9 +/- 0.3 1.2 +/- 0.2 1.5 +/- 0.2 08/21/2000 08/28/2000 1.9 +/- 0.2 0.7 +/- 0.2 1.1 +/-0.3 1.0 +/- 0.2 1.2 +/- 0.2 SControl Location 56

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B Continued Concentration of Beta Emitters in Air Particulates (Results in units of 102 pCi/m3 +/- 2a)

Start Date Stop Date Al A2 A3 A4 AV1 Entrance to Camp Conoy Bay Breeze Route 765 at EOF Camp Conoy Siren Rd Lusby 08/28/2000 09/05/2000 2 0.3 +/- 0.2 0.5 +/- 0.2 0.8 +/- 0.2 0.8 +/- 0.2 09/05/2000 09/11/2000 1.3 +/- 0.2 0.4 +/- 0.2 0.9 +/- 0.3 1.2 +/- 0.2 1.4 +/- 0.2 09/11/2000 09/18/2000 2.1 +/-+0.3 0.5+/-0.2 1.0+/-0.2 1.3+/-0.2 1.3+/-0.2 09/1812000 09/25/2000 1.1 +/- 0.2 0.3 +/- 0.2 0.9 +/- 0.2 1.2 +/- 0.2 1.5 +/- 0.2 09/25/2000 10/02/2000 1.8 +/- 0.2 0.5 +/- 0.2 1.1 +/- 0.2 1.3 +/- 0.2 1.5 +/- 0.2 10/02/2000 10/09/2000 2.6 +/- 0.3 0.6 +/- 0.2 1.0 +/- 0.3 2.1 +/- 0.3 1.9 +/- 0.2 10/09/2000 10/16/2000 3.6 +/- 0.3 1.2 +/- 0.2 2.0 +/- 0.2 3.0 +/- 0.3 3.2 +/- 0.3 10/16/2000 10/23/2000 2.8 +/- 0.2 1.0 +/- 0.3 1.8 +/- 0.2 2.5 +/- 0.3 3.3 +/- 0.3 10/23/2000 10/30/2000 2.0 +/- 0.2 1.0 +/- 0.3 1.8 +/- 0.2 1.8 +/- 0.2 2.5 +/- 0.3 10/30/2000 11/06/2000 1.6 +/- 0.2 1.2 +/- 0.2 1.4 +/- 0.2 1.6 +/- 0.2 1.7 +/- 0.2 11/06/2000 11/13/2000 1.6 +/- 0.2 1.7 +/- 0.2 1.4 +/- 0.2 1.4 +/- 0.2 2.1 +/- 0.2 11/13/2000 11/20/2000 3.3_+/-0.3 3.6_+/-0.3 2.5+/-0.2 2.7+/-0.2 3.2+/-0.3 11/20/2000 11/27/2000 1.0+/-0.2 1.8+/-0.2 1.1 +/-0.2 1.0+/-0.1 1.3+/-0.2 11/27/2000 12/05/2000 1.9 +/- 0.2 2.3 +/- 0.2 1.8 +/- 0.2 1.9 +/- 0.2 2.2 +/- 0.2 12/05/2000 12/11/2000 2.0 +/- 0.2 2.7 +/- 0.3 1.8 +/- 0.2 2.0 +/- 0.2 2.2 +/- 0.2 12/11/2000 12/18/2000 1.3+/-0.2 1.8+/-0.2 1.1 +/-0.2 1.2+/-0.2 2.0 +/- 0.2 12/18/2000 12/26/2000 3.4 +/- 0.2 3.9 +/- 0.3 3.1 +/- 0.2 3.2 +/- 0.2 3.8 +/- 0.2 12/26/2000 01/02/2001 1.7 +/- 0.2 2.2 +/- 0.2 1.8 +/- 0.2 1.8 +/- 0.2 2.1 +/- 0.2

'Control location 2 Sampler malfunction/low flow 57

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B Continued Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/m 3 +/- 2ca)

Start Date Stop Date SFA1 SFA2' SFA3 SFA4 MET Station Visitors Center NNW of ISFSI South of ISFSI 01/03/2000 01/10/2000 1.9 +/- 0.2 1.3 +/- 0.2 1.0 +/- 0.2 2.3 +/- 0.2 0111012000 01/17/2000 1.8 +/- 0.2 1.9 +/- 0.2 1.8 +/- 0.2 1.8 +/- 0.2 01/17/2000 01/27/2000 2.4 +/- 0.2 3.0 +/- 0.2 2.5 +/- 0.2 4.6 +/- 0.4 2

01/27/2000 01/31/2000 1.3+/- 0.3 1.0 +/- 0.3 1.6 +/- 0.3 01/31/2000 02/07/2000 2.4 +/- 0.2 2.2 +/- 0.2 2.2 +/- 0.3 3.0 +/- 0.3 02/07/2000 02/14/2000 1.6 +/- 0.2 2.8 +/- 0.3 1.8+/- 0.2 3.3 +/- 0.3 02/14/2000 02/22/2000 1.4 +/- 0.2 1.8 +/- 0.2 1.5+/- 0.2 2.1 +/-0.2 02/22/2000 02/28/2000 1.2 +/- 0.2 0.7 +/- 0.3 1.4 +/- 0.2 2.0 +/- 0.2 02/28/2000 03/06/2000 1.4 +/- 0.2 1.9 +/- 0.2 1.7 +/- 0.2 2.1 +/- 0.2 03/06/2000 03/13/2000 1.5+/- 0.2 1.9 +/- 0.2 1.8 +/- 0.2 1.7+/- 0.2 03/13/2000 03/20/2000 1.0 +/- 0.2 1.2 +/- 0.2 1.3 +/- 0.2 1.6 +/- 0.2 03/20/2000 03/27/2000 1.1 +/- 0.2 1.2 +/- 0.2 1.4 +/- 0.2 1.7 +/- 0.2 03/27/2000 04/03/2000 1.5 +/- 0.2 1.5 +/- 0.2 1.5 +/- 0.2 2.0 +/- 0.2 04/03/2000 04/10/2000 1.5 +/- 0.2 1.0 +/- 0.2 1.2 +/- 0.2 1.8+/- 0.2 04/10/2000 04/17/2000 0.9 +/- 0.2 1.0 +/- 0.2 0.9 +/- 0.2 1.5+/- 0.3 2

04/17/2000 04/24/2000 0.4 +/- 0.1 0.4 +/- 0.1 0.5 +/- 0.2 04/24/2000 05/01/2000 1.2 +/- 0.2 1.1 +/-0.2 1.2+/- 0.2 1.2 +/- 0.2 05/01/2000 05/09/2000 1.9 +/- 0.2 1.6 +/- 0.2 1.9 +/- 0.2 1.6 +/- 0.2 05/09/2000 05/15/2000 1.6 +/- 0.2 1.5+/- 0.2 1.6 +/- 0.2 1.3+/- 0.2 05/15/2000 05/22/2000 1.1 +/- 0.2 1.6 +/- 0.2 0.8 +/- 0.2 1.0 +/- 0.2 05/22/2000 05/30/2000 1.0 +/- 0.2 1.0+/- 0.2 0.9 +/- 0.1 1.1 +/-0.2 05/30/2000 06/05/2000 0.9 +/- 0.2 1.1 +/-0.2 1.0 +/- 0.2 0.9 +/- 0.2 06/05/2000 06/12/2000 1.9 +/- 0.2 1.8+/- 0.2 1.6 +/- 0.2 1.8 +/- 0.2 2

06/12/2000 06/19/2000 0.7 +/- 0.2 0.5 +/- 0.2 0.5 +/- 0.2 06/19/2000 06/26/2000 1.4+/-0.2 1.2 +/- 0.2 1.1 +/-0.2 1.2 +/- 0.2 06/26/2000 07/03/2000 1.7 +/- 0.2 1.6 +/-0.2 1.6 +/- 0.2 1.4 +/- 0.2 07/03/2000 07/10/2000 1.3 +/-0.2 1.3 +/- 0.2 1.3 +/- 0.2 1.3 +/- 0.2 07/10/2000 07/17/2000 0.9 +/- 0.2 0.9 +/- 0.1 0.8 +/- 0.1 1.1 +/-02 07/17/2000 07/24/2000 1.2 +/- 0.2 1.3 +/- 0.2 1.3 +/- 0.2 1.2 +/- 0.2 07/24/2000 07/31/2000 0.6 +/- 0.2 0.7 +/- 0.2 0.8 +/- 0.2 0.6 +/- 0.2 07/31/2000 08/07/2000 0.7 +/- 0.2 0.8 +/- 0.2 0.8 +/- 0.2 0.7 +/- 0.2 08/07/2000 08/14/2000 1.2 +/- 0.2 0.9 +/- 0.2 1.0 +/- 0.2 1.2+/- 0.2 08/14/2000 08/21/2000 1.6 +/- 0.2 1.3 +/- 0.2 1.4+/- 0.2 1.5+/- 0.2 08/21/2000 08/28/2000 1.3 +/- 0.2 1.2 +/- 0.2 1.3 +/- 0.2 1.9+/- 0.2

'Control location 2 Sampler malfunction/low flow 58

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B Continued Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/mr3 +/- 2y)

Start Date Stop Date SFA1 SFA2 1 SFA3 SFA4 MET Station Visitors Center NNW of ISFSI South of ISFSI 08/28/2000 09/05/2000 0.9 +/- 0.2 0.8 +/- 0.2 1.1 +/- 0.2 1.0 +/- 0.2 09/05/2000 09/11/2000 1.3 +/- 0.2 1.4 +/- 0.2 1.3 +/- 0.2 1.5 +/- 0.2 09/11/2000 09/18/2000 1.3 +/- 0.2 1.3 +/- 0.2 1.3 +/- 0.2 1.2 +/- 0.2 09/18/2000 09/2512000 1.3 +/- 0.2 1.2 +/- 0.2 1.0 +/- 0.2 0.9 +/- 0.2 09/25/2000 10/02/2000 1.7 +/- 0.2 1.5 +/- 0.2 1.7 +/- 0.2 1.5 +/- 0.2 10/02/2000 10/09/2000 2.2 +/- 0.3 2.2 +/- 0.3 2.0 +/- 0.3 2.1 +/- 0.2 10/09/2000 10116/2000 3.2 +/- 0.3 3.3 +/- 0.2 3.3 +/- 0.2 3.2 +/- 0.3 10/16/2000 10/23/2000 3.1 +/- 0.3 3.2 +/- 0.2 3.1 +/- 0.3 2.8 +/- 0.2 10/23/2000 10/30/2000 2.1 +/- 0.2 2.1 +/- 0.2 1.9 +/- 0.2 2.1 +/- 0.2 10130/2000 11/0612000 1.8 +/- 0.2 1.5 +/- 0.2 1.5 +/- 0.2 1.6 +/- 0.2 11/06/2000 11/1312000 1.8 +/- 0.2 1.6 +/- 0.2 1.8 +/- 0.2 1.9 +/- 0.2 11/13/2000 11/20/2000 3.3 +/- 0.2 2.9 +/- 0.2 3.0 +/- 0.2 2.9 +/- 0.2 11/2012000 11/27/2000 1.1 +/- 0.2 1.0 +/- 0.2 1.1 +/- 0.2 1.3 +/- 0.2 11/27/2000 12/05/2000 2.2 +/- 0.2 2.0 +/- 0.2 2.0 +/- 0.2 2.2 +/- 0.2 12/05/2000 12/11/2000 2.1 +/- 0.2 2.0 +/- 0.2 2.1 +/- 0.2 2.2 +/- 0.2 12/11/2000 12/18/2000 1.2 +/- 0.2 1.4 +/- 0.2 1.4 +/- 0.2 1.5 +/- 0.2 12/18/2000 12/26/2000 3.3 +/- 0.2 3.5 +/- 0.2 3.5 +/- 0.2 3.8 +/- 0.2 12/26/2000 01/02/2001 1.9 +/- 0.2 1.7 +/- 0.2 1.8 +/- 0.2 2.0 +/- 0.2

'Control Location 59

January 1 - December 31, 2000 Docket Nos. 50-3' 7/318 Table B-7 Concentration of Gamma Emitters in Air Particulates (Results in units of 10-3 pCi/m3 +/- 2cy)

Sample Date Al A2 A3 A4 A5 1 Entrance to Camp Camp Conoy Siren Bay Breeze Rd Route 765 at EOF Conoy Lusby "k

01/15/2000 02/15/2000 03/15/2000 04/15/2000 05/15/2000

k ,/¢ 06/15/2000 07/15/2000 08/15/2000 09/15/2000 10/15/2000 11/15/2000 12/15/2000 Sample Date SFA1 SFA2 SFA3 SFA4 MET Station Visitors Center NNW of ISFSI South of ISFI5 01/15/2000 02/15/2000 03/15/2000 04/15/2000 05/15/2000 06/15/2000 07/15/2000 08/15/2000 09/15/2000 10/15/2000 11/15/2000 12/15/2000 Control Location Non-Natural Gamma Emitters < MDA 60

January 1 - December 3 1, 2000 Docket Nos. 50-317/318 Table B-8a Concentration of Gamma Emitters in Vegetation Samples (Results in units of pCi/kg (wet) +/-2a)

Sample Code Sample Date Sample Type Gamma Emitters Ibl 06/26/2000 Collards Bay Breeze Rd 07/31/2000 Collards 08/28/2000 Collards 09/28/2000 Collards 10/30/2000 Collards Ib2 06/26/2000 Cabbage Bay Breeze Rd 07/31/2000 Cabbage 08/28/2000 Cabbage 09/28/2000 Cabbage 10/30/2000 Broccoli Ib3 06/26/2000 Cauliflower Bay Breeze Rd 07/31/2000 Brussels sprouts 08/28/2000 Broccoli 09/28/2000 Broccoli 10/30/2000 Cauliflower Ib4 06/26/2000 Collards Camp Conoy Entrance 07131/2000 Collards 08/28/2000 Collards 09/28/2000 Collards 10/30/2000 Collards Ib5 06/26/2000 Cabbage Camp Conoy Entrance 07/31/2000 Cabbage 08/28/2000 Cabbage 09/28/2000 Cabbage 10/30/2000 Broccoli Ib6 06/26/2000 Cauliflower Camp Conoy Entrance 07/31/2000 Brussels sprouts

08/28/2000 Broccoli 09/28/2000 Broccoli 10/30/2000 Cauliflower Ib7 1 06/26/2000 Collards EOF 07/31/2000 Collards 08/28/2000 Collards 09/28/2000 Collards 10/30/2000 Collards Non-Natural Gamma Emitters < MDA

'Control Location 61

January 1 - December 31, 2000 Docket Nos. 50-317/31 8 Table B-8a Concentration of Gamma Emitters in Vegetation Samples (Results in units of pCi/kg (wet) +/- 2a)

Sample Code Sample Date Sample Type Gamma Emitters Ib8S 06/26/2000 Cabbage EOF 07/31/2000 Cabbage 08/28/2000 Cabbage 09/28/2000 Cabbage 10/30/2000 Broccoli I b9' 06/26/2000 Cauliflower EOF 07/31/2000 Brussels sprouts 08/28/2000 Broccoli 09/28/2000 Broccoli 10/30/2000 Cauliflower Control Location Non-Natural Gamma Emitters <MDA 62

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B-8b Concentration of Gamma Emitters in Vegetation From Locations Around the IFSFI (Results in units of pCi/kg (wet) +/- 2cy)

Sample Code Sample Date Gamma Emitters SFbI 03/06/2000

MET Station 06/12/2000

08/21/2000 11/06/2000 SFb2 1 03/0612000

Visitor's Center 06/12/2000

08/21/2000

11/06/2000

SFb3 03/06/2000

NNW of ISFSI 06/12/2000

08/21/2000

11/06/2000

SFb4 03/06/2000

South of ISFSI 06112/2000

08/21/2000

11/06/2000

SFb5 03/06/2000

On Site before Entrance 06/12/2000

to Camp Conoy 08/21/2000

11/06/2000 *

"Non-Natural Gamma Emitters < MDA

'Control Location 63

January 1 - December 31, 2000 Docket Nos. 50--3 17/318 Table B-9 Concentration of Gamma Emitters in Soil Samples From Locations Around the ISFSI (Results in units of pCi/kg (dry) +/- 2c)

Sample Code Sample Date Cs-137 Gamma Emitters I "k SFS1 03/06/2000 t

MET Station 06/12/2000 08/21/2000 11/06/2000 2

SFS2 03/06/2000 130 + 39 Visitors Center 06/12/2000 59 + 25 08/21/2000 65 + 23 11/06/2000 160 + 59 SFS3 03/06/2000 208 + 64 NNW of ISFSI 06/12/2000 353 +/- 49 08/21/2000 539 + 64 11/06/2000 727 + 91 SFS4 03/06/2000 South of ISFSI 06/12/2000 08/21/2000 11/06/2000 SFS5 03/06/2000 546 +/- 56 Entrance to 06/12/2000 261 +/- 37 Camp Conoy 08/21/2000 253 +/- 39 11106/2000 414 +/- 55 Non-Natural Gamma Emitters < MDA

'This Isotope < MDA Control Location 64

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE B-10 Typical MDA Ranges for Gamma Spectrometry Selected Bay Water Fish Shellfish Shoreline Vegetation Soil Particulates pCi/kg pCi/kg pCi/kg pCi/kg pCi/kg 10- 3 pCi/m 3 Nuclides pCi/I 22- 34 11-36 18-56 18-51 19-98 1.2-7.7 Na-22 1.8-4.0 110- 155 81-269 106- 252 97-194 117-634 13 - 98 Cr-51 13-35 13 22 10-30 16-49 15-36 17-106 1.2-9.2 Mn-54 1.6-3.2 -

17 - 24 10-33 15-43 14-35 16-94 1.4-9.7 Co-58 1.5-3.5 47 -69 27-76 31-90 31-88 12-203 3.6-24.9 Fe-59 3.6-9.4 18 11-33 17-44 18-45 19-114 1.1 -7.3 Co-60 1.7-3.6 -28 23-51 24-69 43-134 34-92 47-256 2.2 - 16.7 Zn-65 3.2-8.0 1.7-4.3 19 - 28 12-40 20-49 15-34 19-109 1.9- 13.7 Nb-95 29-41 22-59 28-78 27-58 27-180 2.5 - 15.8 Zr-95 2.8-6.0 13 116-177 74-254 123-384 117-284 127-851 8.0 - 56.4 Ru-1 06 -26 1.5-2.8 14-18 9-27 14-39 12-33 16-121 0.9- 16.6 Ag-11Om 20-49 175-280 123-425 174-422 142-345 203-1160 2.2 - 133 Te-1 29m 1-131 2-23 28 - 84 18-117 14-34 14-38 21-137 1.8-2.6 12-16 10-25 19-52 16-36 19-88 1.2 - 8.6 Cs-1 34 1.5-2.7 13-18 8-27 16-43 14-35 12-99 0.9-6.0 Cs-1 37 Ba-140 6-34 90- 183 58-242 49-135 44-125 70 - 339 13.2 - 105 Ce-144 9-14 34-51 29-120 74-138 59-119 71- 342 3.2-49.1 3

"The MDA range for 1-131 measured on silver zeolite cartridge is typically 2.5 x 10-3 to 4.1 x 10-2 pCi/m .

65

January 1 - December 3 1, 2000 Docket Nos. 50-317/318 TABLE B-I I Typical LLDs for Gamma Spectromnetry Selected Bay Water Fish Shellfish Sediment Particulate Precipitation Vegetation Soil Well Water pCi/kg pCi/kg pCi/kg 10- 3 pCi/m 3 pCi/I pCi/Kg pCi/Kg pCi/I Nuclides pCi/I 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 1.9 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 1-131 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 Ce-144 12 43 43 75 5.5 12 101 75 12 3 3 "The LLD for 1-13 1 measured on silver zeolite cartridge is 7.9x 10-3 pCi/hn 3 for NaI l Detector and 5.3 x 10- pCi/m- for NaI2 Detector 66

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B-12 Direct Radiation (Results in Units of mR/90 days +/- 2a)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter DROI On Site, along Cliffs 12.07 1.36 12.62 0.80 11.34 0.72 11.94 1.27 DR02 Route 765, Auto Dump 8.78 _ 1.06 8.91 + 0.91 8.44 + 0.40 9.24 +/- 0.70 DR03 Route 765, Giovanni's Tavern 9.99 + 1.23 9.82 +/- 0.78 9.05 + 0.65 10.18 + 0.75 DR04 Route 765, across from White Sands Drive. 10.89 + 1.92 11.23 +/- 0.83 10.57 + 1.14 11.74 +/- 1.05 DR05 Route765, St. John's Creek 11.25+/- 1.31 11.03+/- 0.94 10.22+/- 1.31 11.18+/- 1.15 DR06 Route 765 at Lusby 9.28 +/- 0.20 9.33 +/- 1.17 8.84 +/- 0.72 9.49 +/- 0.53 DR07 Entrance to Camp Conoy 9.20 +/- 1.20 9.16 + 0.79 8.57 +/- 1.12 9.23 +/- 1.09 DR08 Camp Conoy Rd at Emergency Siren 13.17 +/- 0.62 13.75 1.37 12.70 1.23 13.44 +/- 0.67 DR09 Bay Breeze Rd 10.26 +/- 0.83 9.77 _ 0.90 9.74 +/- 0.62 10.09 +/- 0.86 DR10 Decatur St. and Calvert Beach Rd. 9.39 +/- 0.28 9.62 +/- 1.06 9.26 +/- 0.82 9.68 +/- 0.42 DR11 Dirtroad off Mackall&Parren Rd 10.16+/- 1.27 10.15+/- 1.10 9.06+/- 0.87 10.17+/- 0.76 DR12 Mackall & Bowen Rds 9.61 +/- 0.69 9.86 +/- 0.92 9.31 +/- 1.07 10.22 +/- 0.82 DR13 Mackall Rd, near Wallville 10.30+/- 1.06 11.24+/- 1.23 10.30+/- 0.44 11.00+/- 1.42 DR14 Rodney Point 12.30+/- 1.06 12.12+/- 0.63 11.37+/- 0.58 12.80+/- 1.44 DR15 Mill Bridge & Turner Rds 11.24+/- 1.39 11.08+/- 1.18 10.34+/- 0.26 11.41 +/- 1.06 67

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B-12 Direct Radiation (Results in Units of mR/90 days +/- 2u)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter DR16 Across from Appeal School 10.02 +/- 0.60 10.70 +/- 2.42 9.30 +/- 0.30 9.85 +/- 1.10 DR17 Cove Point & Little Cove Point Rds 11.62++/- 0.98 11.74+/- 1.18 10.55 + 1.01 11.64+/- 0.50 DR18 Cove Point 9.00 +/- 0.25 8.82 +/- 0.96 7.97 +/- 0.27 8.82 + 0.36 DR19 Long Beach 10.14 0.48 9.87 +/- 1.06 9.20 + 0.51 9.96 +/- 1.39 DR20 On site, near Shore 12.14+/- 0.87 12.03++/- 1.30 11.24 +/- 1.11 12.35 ++/-1.14 DR21 1 EOF 11.64+ 1.38 11.56+/- 1.02 11.10 + 0.97 11.81 +/- 1.59 DR22' Solomons Island 10.30 +/- 0.61 10.04 +/- 0.94 DR23' Taylors Island 14.08 +/- 0.82 14.70 +/- 1.81 13.49 +/- 1.35 14.20 +/- 2.44 DR30 MET Station 11.58 +/- 0.32 12.08 +/- 1.53 10.99 +/- 0.86 10.61 +/- 0.75 SFDR01 SW of ISFSI 14.56 +/- 1.46 14.10 +/- 1.75 13.26 +/- 1.23 13.75 +/- 2.57 SFDR02 North of ISFSI 17.05 + 2.31 16.54 +/- 2.08 15.35 +/- 1.38 15.77 +/- 1.20 SFDR03 NNE of ISFSI 22.90 +/- 0.69 23.21 +/- 4.32 24.21 2.80 26.94 + 2.31 SFDR04 NE of ISFSI 16.14 +/- 1.44 16.36 +/- 2.52 16.50 +/- 2.19 15.85 +/- 3.36 SFDR05 East of ISFSI 12.56 +/- 0.70 12.42_+/- 2.13 11.97 +/- 0.42 12.42 +/- 0.65 SControl Location 2 Missing Data 68

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table B-12 Direct Radiation (Results in Units of mR/90 days +/- 2a)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter SFDR06 ESE of ISFSI 13.75 +/- 0.99 13.21 +/- 0.99 12.58 +/- 0.79 12.47 +/- 1.05 SFDR07 Visitor's Center 11.84 +/- 1.01 12.32 +/- 2.00 11.51 +/- 1.01 10.78 +/- 1.22 SFDR08 NNWofISFSI 21.23 +/- 3.80 22.60 +/- 1.56 20.68+/- 0.80 22.11 +/- 2.86 SFDR09 South of ISFSI 11.09 +/- 1.32 10.43 +/- 1.07 10.22 +/- 1.60 9.81 +/- 0.49 SFDR10 NNWofISFSI 39.13 +/- 2.31 35.91 +/- 6.48 37.53 +/- 9.35 30.10 2.83 SFDR1 1 WNW ISFSI 23.18 +/- 4.84 22.96 +/- 2.39 23.73 +/- 1.51 26.53+/- 4.63 SFDR12 West of ISFSI 22.58 +/- 2.49 26.42 +/- 1.93 24.24 +/- 2.17 30.28 - 3.00 SFDR13 SSWofISFSI 12.69+/- 0.85 12.89 +/- 0.64 12.87 +/- 1.00 12.58+/- 0.22 SFDR14 SSE of SFSI 10.75_+/- 0.93 10.79_+/- 1.95 10.61 +/- 0.80 10.69+/- 0.35 SFDR15 ENE of ISFSI 14.63 +/- 1.08 13.62 +/- 1.20 14.48 +/- 0.91 14.88+/- 1.00 SFDR16 WSWofISFSI 19.44 +/- 2.81 20.76+/-- 1.43 19.30+/- 3.43 18.11 +/- 2.90 69

January 1 - December 31, 2000 Docket Nos. 50-317/318 (LEFT BLANK) 70

January 1 - December 31, 2000 Docket Nos. 50-317/318 APPENDIX C Appendix C is a summary of CPSG 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 Radiological Environmental Cross-Check Program during the period January 1, 2000 to December 31, 2000. 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 Teledyne Brown Engineering's Environmental Services during the same period. The Teledyne Brown Engineering operating procedures pertinent to these analyses are described in Reference (11).

All CPSG Laboratory's results contained in Table C-I agree with Analytics' results with the exception of five isotopes for the filter sample type on 6/22/00. Reanalysis of the filter did not result in agreement within the 3 sigma control limit, however, three of the five original results were in agreement when using the NRC Resolution Test Criteria'. The supplier was contacted to obtain the results of all participants in this cross check. Evaluation of all the data showed the presence of a systematic error and that the CPSG Laboratory data was consistent with other participants.

All the results contained in Table C-2 agree with the Laboratory replicates and split samples submitted to Teledyne Brown Engineering, where appropriate. Samples whose nature precludes splitting them with Teledyne Brown Engineering are marked ""** in the Split Analysis column.

Although the CPSG Laboratory participated in the 12 t" International Intercomparison of Environmental Dosimeters, the results were unavailable at the time of this report. The results will be included in next year's report.

'NRC Inspection Manual, Inspection Procedure 84750, March 15, 1994 71

January 1 - December 3 1, 2000 Docket Nos. 50-317/318 (LEFT BLANK) 72

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page C-1 Results of Participation in Analytics Cross Check Program 2000 ..................................... 75 C-2 Results of Quality Assurance Program for 2000 ................................................................ 77 C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry ........................ 86 73

January 1 - December 31, 2000 Docket Nos. 50-317/318 (LEFI BLANK) 74

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE C-1 Results of Participation in Analytics Cross Check Program for 2000 Sample Sample Type Isotope Reported Analytics' Date and Units Observed Laboratory' s Results1 Results1 3/23/00 Water-pCi/L H-3 4142+/-104 4170+/-209 3/23/00 Water-pCi/L Cs-1 34 123+/-21 139+/-7 Cs-1 37 132+/-28 128+/-6 Ce-141 441+/-45 427+/-21 Zn-65 193+/-62 196+/-10 Cr-51 232+/-158 238+/-12 Mn-54 163+/-34 159+/-8 Fe-59 93+/-43 92+/-5 Co-60 118+/-21 116+/-6 1-131 82+/-38 74+/-4 6/22/00 Water-pCi/L 1-131 79+/-41 84+/-4 Ce-141 65+/-28 74+/-4 Cr-51 211+/-168 226+/-11 Cs-134 84+/-18 98+/-5 Cs-1 37 208+/-33 204+/-10 Co-58 112+/-27 111+/-6 Mn-54 121+/-28 68+/-3 Fe-59 57+/-32 54+/-3 Zn-65 162+/-57 158+/-8 Co-60 161+/-24 152+/-8 6/22/00 Filter-pCi/filter Beta 53+/-3 59+/-3 6/22/00 Filter-pCi/filter Ce-141 109+/-92 93+/-5 Cr-51 334+/-82 284+/-14 Cs-1 34 113+/-6 123+/-6 Cs-1 37 286+/-18 256+/-13 Mn-54 189+/-142 140+/-7 Fe-59 90+/-1 82 68+/-3 Zn-65 250+/-272 199+/-10 Co-60 223+/-122 191+/-10 SLaboratory precision 3 sigma 2 See discussion at the beginning of this Appendix 75

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE C Continued Results of Participation in Analytics Cross Check Program for 2000 Sample Sample Type Isotope Reported Analytics' Date and Units Observed Laboratory's Results' Results1 9/21/00 Water-pCi/L H-3 8756+/-92 8947+/-447 9/21/00 Water-pCi/L Cs-1 34 114+/-18 128+/-6 Cs-137 213+/-36 218+/-113 Ce-141 197+/-33 191+/-10 Zn-65 127+/-57 134+/-7 Cr-51 242+/-180 230+/-12 Mn-54 96+/-30 89+/-4 Fe-59 61+/-34 54+/-3 Co-60 254+/-30 246+/-12 1-131 73+/-27 75+/-4 12/07/00 Water-pCi/L Cs-1 34 80+/-20 90+/-5 Cs-1 37 223+/-34 201+/-11 Ce-141 379+/-44 376+/-19 Zn-65 168+/-62 156+/-8 Cr-51 535+/-237 532+/-27 Mn-54 165+/-33 161+/-8 Fe-59 77+/-52 86+/-4 Co-60 200+/-27 194+/-10 1-131 72+/-39 60+/-3 Co-58 78+/-26 81+/-4 SLaboratory precision 3 sigma 76

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE C-2 Results of Quality Assurance Program for 2000 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 3

10-2 pCi/m Air Iodine-Al 1/10/00 1-131 <0.3 <0.3 **

Air Iodine-A2 1/10/00 1-131 <0.5 <0.5 **

Air Filter -Al 1110/00 Beta 1.9+/-0.2 2.1+/-0.2 **

Air Filter -A2 1/10/00 Beta 1.4+/-0.2 1.5+/-0.2 **

Air Filter-A3 1/10/00 Beta 1.7+/-0.2 1.8+/-0.2 **

Air Filter-A4 1/10/00 Beta 2.0+/-0.2 2.1+/-0.2 **

Air Filter -A5 1/10/00 Beta 1.8+/-0.2 1.9+/-0.2 **

Air Filter -SFAI 1/10/00 Beta 1.9+/-0.2 1.9+/-0.2 **

Air Filter -SFA2 1/10/00 Beta 1.3+/-0.2 1.4+/-0.2 **

Air Filter -SFA3 1/10/00 Beta 1.0+/-0.2 1.1+/-0.2 **

Air Filter -SFA4 1/10/00 Beta 2.3+/-0.2 2.4+/-0.2 pCi/L Bay Water-Wa2 1/15/00 Gamma <MDA <MDA <MDA Bay Water-Wa2 2/15/00 Tritium 791+/-45 731+/-44 670+/-130 10-2 pCi/m3 Air Filter-Al 2/14/00 Beta 2.6+/-0.2 2.7+/-0.2 **

Air Filter-A2 2/14/00 Beta 2.4+/-0.2 2.5+/-0.2 **

Air Filter-A3 2/14/00 Beta 2.7+/-0.2 2.7+/-0.2 Air Filter-A4 2/14/00 Beta 3.0+/-0.2 2.8+/-0.2 **

Air Filter-A5 2/14/00 Beta 2.1+/-0.2 2.1+/-0.2 **

Air Filter-SFA1 2/14/00 Beta 1.6+/-0.2 1.7+/-0.2 **

Air Filter-SFA2 2/14/00 Beta 2.8+/-0.2 2.7+/-0.2 Air Filter-SFA3 2/14/00 Beta 1.8+/-0.2 1.8+/-0.2 **

Air Filter-SFA4 2/14/00 Beta 3.3+/-0.3 3.3+/-0.3 **

Air Iodine-A3 2/14/00 1-131 <0.2 <0.2 **

Air Iodine-A4 2/14/00 1-131 <0.4 <0.4 **

Samples split with Teledyne Brown Engineering, Environmental Services, Knoxville, TN. On the following table is a list of their typical MDAs.

"**The nature of these samples precluded splitting them with Teledyne Brown Engineering.

77

January 1 - December 31, 2000 Docket Nos. 50-317/3 8 TABLE C Continued Results of Quality Assurance Program for 2000 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis pCi/kg Soil-SFS2 3/06/00 Cs-1 37 130+/-39 114+/-33 134+/-32 Soil-SFS3 3/06/00 Cs-1 37 207+/-64 263+/-74 213+/-42 Vegetation-SFb2 3/06/00 Gamma <MDA <MDA <MDA Vegetation-SFb3 3/06/00 Gamma <MDA <MDA <MDA 3

10-2 pCi/m Air Filter-Al 3/20/00 Beta 1.2+/-0.2 1.2+/-0.2 Air Filter-A2 3/20/00 Beta 1.4+/-0.2 1.3+/-0.2 Air Filter-A3 3/20/00 Beta 1.3+/-0.2 1.2+/-0.2 Air Filter-A4 3/20/00 Beta 1.6+/-0.2 1.6+/-0.2 Air Filter-A5 3/20/00 Beta 1.4+/-0.2 1.2+/-0.2 Air Filter-SFA1 3/20/00 Beta 1.0+/-0.2 0.8+/-0.2 Air Filter-SFA2 3/20/00 Beta 1.2+/-0.2 1.2+0.2 Air Filter-SFA3 3/20/00 Beta 1.3+/-0.2 1.2+/-0.2 Air Filter-SFA4 3/20/00 Beta 1.6+/-0.2 1.55+/-0.2 Air Iodine-Al 3/13/00 1-131 <0.2 <0.2 Air Iodine-A3 3/13/00 1-131 <0.4 <0.4 pCi /kg Shoreline-Wbl 3/20/00 Gamma <MDA <MDA <MDA Oysters-lal 0 3/24/00 Ag-11Om 8+/-6 10+/-8 <30 102- pCi/m 3 Air Iodine-A2 4/10/00 1-131 <0.2 <0-2 Air Iodine-A5 4/10/00 1-131 <0.4 <0.4

Samnples split with Teledyne Brown Engineering, Environmental Services, Knoxville, TN. On the following table is a list of their typical MDAs.

"**Thenature of these samples precluded splitting them with Teledyne Brown Engineering.

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 2000 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 10-2 pCi/m3 Air Filter-Al 4/10/00 Beta 1.3+/-0.2 1.3+/-0.2 **

Air Filter-A2 4/10/00 Beta 1.0+/-0.2 1.0+/-0.2 **

Air Filter-A3 4/10/00 Beta 1.4+/-0.2 1.4+/-0.2 **

Air Filter-A4 4/10/00 Beta 1.6+/-0.2 1.6+/-0.2 **

Air Filter-A5 4/10/00 Beta 1.1+/-0.2 1.2+/-0.2 **

Air Filter-SFAI 4/10/00 Beta 1.5+/-0.2 1.0+/-0.2 **

Air Filter-SFA2 4/10/00 Beta 1.0+/-0.2 1.1+/-0.2 **

Air Filter-SFA3 4/10/00 Beta 1.2+/-0.2 1.2+/-0.2 **

Air Filter-SFA4 4/10/00 Beta 1.8+/-0.2 1.6+/-0.2 **

pCi /L Bay Water-Wa2 4/15/00 Gamma <MDA <MDA <MDA 10.2 pCi/m 3 Air Filter-Al 5/09/00 Beta 2.2+/-0.2 2.0+/-0.2 **

Air Filter-A2 5/09/00 Beta 1.2+/-0.2 1.1+/-0.2 **

Air Filter-A3 5/09/00 Beta 1.1+/-0.2 1.1+/-0.2 **

Air Filter-A4 5/09/00 Beta 1.8+/-0.2 1.7+/-0.2 **

Air Filter-A5 5/09/00 Beta 1.9+/-0.2 2.0+/-0.2 **

Air Filter-SFA1 5/09/00 Beta 1.8+/-0.2 1.8+/-0.2 **

Air Filter-SFA2 5/09/00 Beta 1.6+/-0.2 1.6+/-0.2 **

Air Filter-SFA3 5/09/00 Beta 1.9+/-0.2 1.8+/-0.2 **

Air Filter-SFA4 5/09/00 Beta 1.6+/-0.2 1.5+/-0.2 **

Air Iodine-Al 5/09/00 1-131 <0.3 <0.3 **

Air Iodine-A2 5/09/00 1-131 <0.4 <0.4 **

Samples split with Teledyne Brown Engineering, Environmental Services, Knoxville, TN. On the following table is a list of their typical MDAs.

"**Thenature of these samples precluded splitting them with Teledyne Brown Engineering.

79

January 1 - December 3 1, 2000 Docket Nos. 50-317/3 18 TABLE C Continued Results of Quality Assurance Program for 2000 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis pCi/kg Soil-SFS1 6/12/00 Gamma <MDA <MDA 24 Soil-SFS3 6/12/00 Cs-137 353+/-49 450+/-59 409+/-46 Vegetation-SFb3 6/12/00 Gamma <MDA <MDA <MDA Vegetation-SFb4 6/12/00 Gamma <MDA <MDA <MDA 3

10.2 pCi/m Air Filter-Al 6/12/00 Beta 1.8+/-0.2 1.6+/-0.2 **

Air Filter-A2 6/12/00 Beta 1.1+/-0.2 0.9+/-0.2 **

Air Filter-A3 6/12/00 Beta 1.0+/-0.2 1.0+0.2 **

Air Filter-A4 6/12/00 Beta 1.4+/-0.2 1.5+/-0.2 **

Air Filter-A5 6/12/00 Beta 1.7+/-0.2 1.6+/-0.2 **

Air Filter-SFA1 6/12/00 Beta 1.9+/-0.2 1.8+/-0.2 **

Air Filter-SFA2 6/12/00 Beta 1.8+/-0.2 1.6+0.2 **

Air Filter-SFA3 6/12/00 Beta 1.6+/-0.2 1.5+/-0.2 **

Air Filter-SFA4 6/12/00 Beta 1.8+/-0.2 1.8+/-0.2 **

Air Iodine-A2 6/12/00 1-131 <0.3 <0.3 **

Air Iodine-A3 6/12/00 1-131 <0.3 <0.3 **

10-3 pCi/m 3 Air Filters-Al 6/15/00 Gamma <MDA <MDA <MDA Air Filters-A2 6/15/00 Gamma <MDA <MDA <MDA Air Filters-A3 6/15/00 Gamma <MDA <MDA <MDA Air Filters-A4 6/15/00 Gamma <MDA <MDA <MDA Air Filters-AS 6/15/00 Gamma <MDA <MDA <MDA Air Filters-SFA1 6/15/00 Gamma <MDA <MDA <MDA Air Filters-SFA2 6/15/00 Gamma <MDA <MDA <MDA Air Filters-SFA3 6/15/00 Gamma <MDA <MDA <MDA Air Filters-SFA4 6/15/00 Gamma <MDA <MDA <MDA

Samples split with Teledyne Brown Engineering, Environmental Services, Knoxville, TN. On the following table is a list of their typical MIDAs.

"**The nature of these samples precluded splitting them with Teledyne Brown Engineering.

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 2000 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis mR/90 Days DRI 5 6/30/00 TLD 11.08+/-1.18 11.17+/-1.27 DR16 6/30/00 TLD 10.70+/-2.42 9.91+/-0.71 DR1 7 6/30/00 TLD 11.74+/-1.18 11.51+/-0.82 DR1 8 6/30100 TLD 8.82+/-0.96 8.88+/-0.97 DR1 9 6/30/00 TLD 9.87+/-1.06 9.76+/-1.21 DR20 6/30/00 TLD 12.03+/-1.30 12.70+/-0.96 DR29 6/30/00 TLD 12.33+/-1.54 12.64+/-1.14 DR31 6/30/00 TLD 14.14+/-1.83 13.41+/-1.16 SFDR08 6/30/00 TLD 22.60+/-1.56 21.74+/-1.57 SFDR09 6/30/00 TLD 10.43+/-1.07 10.77+/-1.75 RPDR12 6/30/00 TLD 23.87+/-3.90 22.99+/-2.48 pCi/kg Fish-lal 7/6/00 Gamma <MDA <MDA <MDA 10-2 pCi/m 3 Air Filter-Al 7/10/00 Beta 1.5+/-0.2 1.6+/-0.2 Air Filter-A2 7/10/00 Beta 0.9+/-0.2 1.0+/-0.2 Air Filter-A3 7/10/00 Beta 0.2+/-0.2 0.4+/-0.2 Air Filter-A4 7/10/00 Beta 1.4+/-0.2 1.5+/-0.2 Air Filter-A5 7/10/00 Beta 1.5+/-0.2 1.6+/-0.2 Air Filter-SFA1 7/10/00 Beta 1.3+/-0.2 1.4+/-0.2 Air Filter-SFA2 7/10/00 Beta 1.3+/-0.2 1.3+/-0.2 Air Filter-SFA3 7/10100 Beta 1.3+/-0.2 1.4+/-0.2 Air Filter-SFA4 7/10/00 Beta 1.3+/-0.2 1.5+/-0.2 Air Iodine-Al 7/10/00 1-131 <0.6 <0.8 Air Iodine-A2 7/10/00 1-131 <0.7 <0.8 pCi/L Bay Water-Wa2 7/15/00 Gamma <MDA <MDA <MDA

Samples split with Teledyne Brown Engineering, Environmental Services, Knoxville, TN. On the following table is a list of their typical MDAs.

"**Thenature of these samples precluded splitting them with Teledyne Brown Engineering.

81

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 2000 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 10.2 pCi/mr Air Filter-Al 8/14/00 Beta 0.7+/-0.2 0.8+/-0.2 Air Filter-A2 8/14/00 Beta 0.6+/-0.2 0.6+/-0.2 Air Filter-A3 8/14/00 Beta 1.0+/-0.2 1.0+/-0.2 Air Filter-A4 8/14/00 Beta 1.3+/-0.2 1.4+/-0.2 Air Filter-A5 8/14/00 Beta 1.4+/-0.2 1.5+/-0.2 Air Filter-SFA1 8/14/00 Beta 1.2+/-0.2 1.2+/-0.2 Air Filter-SFA2 8/14/00 Beta 0.9+/-0.2 1-0+/-0.2 Air Filter-SFA3 8/14/00 Beta 1.0+/-0.2 1.1+/-0.2 Air Filter-SFA4 8/14/00 Beta 1.2+0.2 1.3+0.2 10-2 pCi/m 3 Air Iodine-A3 8/14/00 1-131 <1 <1 "k*

Air Iodine-A4 8/14/00 1-131 <0.7 <0.7 pCi/L Bay Water-Wa2 8/15/00 Tritium 217+/-37 26 1+/-38 <200 pCi /kg Vegetation-lbl 8/28/00 Gamma <MDA <MDA <MDA Vegetation-lb2 8/28/00 Gamma <MDA <MDA <MDA Vegetation-lb3 8/28/00 Gamma <MDA <MDA <MDA Vegetation-lb4 8/28/00 Gamma <MDA <MDA <MDA Vegetation-lb6 8/28/00 Gamma <MDA <MDA <MDA Vegetation-lb7 8/28/00 Gamma <MDA <MDA <MDA

Samples split with Teledyne Brown Engineering. Environmental Services, Knoxville, TN. On the following table is a list of their typical MDAs.

"**Thenature of these samples precluded splitting them with Teledyne Brown Engineering.

S2

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 2000 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 3

10-2 pCi/m Air Filter-A2 9/5/00 Beta 0.3+/-0.2 0.2+/-0.2 Air Filter-A3 9/5/00 Beta 0.6+/-0.2 0.5+/-0.2 Air Filter-A4 9/5/00 Beta 0.8+/-0.2 0.8+/-0.2 Air Filter-A5 9/5/00 Beta 0.8+0.2 0.9+0.2 Air Filter-SFA1 9/5/00 Beta 0.9+/-0.2 0.8+/-0.2 Air Filter-SFA2 9/5/00 Beta 0.8+/-0.2 0.7+/-0.2 Air Filter-SFA3 9/5/00 Beta 1.1+/-0.2 1.0+/-0.2 Air Filter-SFA4 9/5/00 Beta 1.0+/-0.2 0.9+/-0.2 Air Iodine-Al 9/11/00 1-131 <0.8 <0.9 Air Iodine-A2 9/11/00 1-131 <0.4 <0.4 10-2 pCi/m 3 Air Filter-Al 10/16/00 Beta 3.6+/-0.3 3.7+/-0.3 Air Filter-A2 10/16/00 Beta 1.2+/-0.2 0.6+/-0.2 Air Filter-A3 10/16100 Beta 2.0+/-0.2 2.0+/-0.2 Air Filter-A4 10/16/00 Beta 3.0+/-0.3 3.2+/-0.3 Air Filter-A5 10/16/00 Beta 3.2+/-0.3 3.0+/-0.2 Air Filter-SFAI 10/16/00 Beta 3.2+/-0.3 3.3+/-0.3 Air Filter-SFA2 10/16/00 Beta 3.3+/-0.2 3.3+/-0.2 Air Filter-SFA3 10/16/00 Beta 3.3+/-0.2 3.4+/-0.2 Air Filter-SFA4 10/16/00 Beta 3.2+/-0.3 3.3+/-0.3 pCi/kg Oysters-la3 10/18/00 Ag-110m 132+/-14 102+/-111 115+/-7 Vegetation-lbl 10/30/00 Gamma <MDA <MDA <MDA Vegetation-lb2 10/30/00 Gamma <MDA <MDA <MDA Vegetation-lb4 10/30100 Gamma <MDA <MDA <MDA Vegetation-lb5 10/30/00 Gamma <MDA <MDA <MDA Vegetation-lb6 10/30/00 Gamma <MDA <MDA <MDA Vegetation-lb7 10/30/00 Gamma <MDA <MDA <MDA

Samples split with Teledyne Brown Engineering, Environmental Services, Knoxville, TN. On the following table is a list of their typical MDAs.

"**Thenature of these samples precluded splitting them with Teledyne Brown Engineering.

83

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 2000 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 10-2 pCi/m 3 Air Filter-Al 11/13/00 Beta 1.6+/-0.2 1.7+/-0.2 Air Filter-A2 11/13/00 Beta 1-6+/-0.2 1.7+/-0.2 Air Filter-A3 11/13/00 Beta 1.4+/-0.2 1.4+/-0.2 Air Filter-A4 11/13/00 Beta 1.4+/-0.2 1.5+/-0.2 Air Filter-A5 11/1 3/00 Beta 2.1+/-0.2 2.0+/-0.2 Air Filter-SFA1 11/13/00 Beta 1.8+/-0.2 1.7+0.2 Air Filter-SFA2 11/13/00 Beta 1.6+/-0.2 1.6+0.2 Air Filter-SFA3 11/13/00 Beta 1.8+/-0.2 1.8+0.2 Air Filter-SFA4 11/13/00 Beta 1.9+/-0.2 1.7+0.2 10-2 pCi/mr Air lodine-A4 11/13/00 1-131 <1.0 <1.1 Air Iodine-A5 11/13/00 1-131 <1.4 <1.2 pCi/L Bay Water-Wa2 11/15/00 Gamma <MDA <MDA <MDA 10-2 pCi/mr Air Filter-Al 12/11/00 Beta 2.0+/-0.2 2.3+/-0.2 Air Filter-A2 12/11/00 Beta 2.7+/-0.3 2.9+/-0.3 Air Filter-A3 12/11/00 Beta 1.8+/-0.2 2.1+/-0.2 Air Filter-A4 12/11/00 Beta 2.0+/-0.2 2.2+/-0.2 Air Filter-A5 12/11/00 Beta 2.2+/-0.2 2.5+/-0.3 Air Filter-SFA1 12/11/00 Beta 2-1+/-0.2 2.2+/-0.2 Air Filter-SFA2 12/11/00 Beta 2.0+/-0.2 2.4+/-0.3 Air Filter-SFA3 12/11/00 Beta 2.1+/-0.2 2.3+/-0.2 Air Filter-SFA4 12/11/00 Beta 2.2+/-0.2 2.55+/-0.2 Air Iodine-A2 12/11/00 1-131 <1.4 <1.4 Air Iodine-A3 12/11/00 1-131 <1.3 <1.2

Samiples split with Teledyne Brown Engineering. Environmental Services, Knoxville, TN. On the following table is a list of their typical MDAs.

"**The nature of these samples precluded splitting them with Teledyne Brown Engineering.

84

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 2000 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 3

10-3 pCi/m Air Filters-Al 12/15/00 Gamma <MDA <MDA <MDA Air Filters-A2 12/15/00 Gamma <MDA <MDA <MDA Air Filters-A3 12/15/00 Gamma <MDA <MDA <MDA Air Filters-A4 12/15/00 Gamma <MDA <MDA <MDA Air Filters-A5 12/15/00 Gamma <MDA <MDA <MDA Air Filters-SFAI 12/15/00 Gamma <MDA <MDA <MDA Air Filters-SFA2 12/15/00 Gamma <MDA <MDA <MDA Air Filters-SFA3 12/15/00 Gamma <MDA <MDA <MDA Air Filters-SFA4 12115/00 Gamma <MDA <MDA <MDA mR/90 Days DR21 12/31/00 TLD 11.81+/-1.59 11.04+/-0.59 DR22 12/31/00 TLD 10.04+/-0.94 8.96+/-1.06 **

DR24 12/31100 TLD 9.86+/-0.38 10.52+/-1.01 **

DR25 12/31/00 TLD 11.39+/-1.53 11.08+/-0.84 **

DR26 12/31/00 TLD 9.02+/-0.98 9.23+/-0.45 **

DR27 12/31/00 TLD 10.07+/-0.80 9.98+/-1.14 **

DR32 12/31/00 TLD 8.82+/-0.63 8.65+/-0.54 DR33 12/31/00 TLD 13.14+/-1.39 13.04+/-0.91 SFDR10 12/31/00 TLD 30.10+/-2.83 33.50+/-5.68 **

SFDR11 12/31/00 TLD 26.53+/-4.63 25.49+/-4.32 **

RPDR05 12/31/00 TLD 19.73+/-2.05 21.15+/-2.69 **

Samples split with Teledyne Brown Engineering, Environmental Services, Knoxville, TN. On the following table is a list of their typical MDAs.

"**Thenature of these samples precluded splitting them with Teledyne Brown Engineering.

85

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry Selected Bay Water Fish Shellfish Sediment Vegetation Particulates Nuclides pCi/I pCi/kg pCi/kg pCi/kg pCi/kg 10- 3 pCi/m 3 H-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 Ag-1I0m 1 10 10 10 5 4 Te-129m 16 131 60 162 79 95 1-131 4 65 30 35 22 74 Cs-134 1 8 4 10 5 4 Cs-137 1 9 4 10 5 4 BaLa-140 3 32 15 25 14 36 Ce-144 7 40 16 54 26 18 86

January 1 - December 3 1, 2000 Docket Nos. 50-317/318 APPENDIX D Appendix D contains the results of a Land Use Census conducted around Calvert Cliffs Nuclear Power Plant during August 2000. A table listing the raw data of this census and a discussion of the results are included in this appendix.

Discussion Table D-1 Land Use Census A Land Use Census was conducted during August 2000 to identify, within a distance of 8 Plant Distance From kin, the location of the nearest milk animal, the (kn) nearest residence, and the nearest garden greater Sector Residence Garden than 50 m 2 in each of the nine sectors over land.

SE 2.7 2.7 A detailed description of the Land Use Census is SSE 2.9 2.9 given in a separate document (12). The position S 3.1 3.1 of the nearest residence and garden in each sector SSW 2.6 2.9 out to 8 km are given in the adjacent table. No SW 2.1 2.6 dairy animal was found within 8 km in any WSW 1.9 1.9 direction. There has not been any significant W 2.1 2.4 change in the use of local lands in the last few WVNW 2.6 2.6 years.

NW 2.9 2.9 The closest residence and garden are situated in the WSW sector, which is one of the least prevalent wind directions. In the S, SSE, and SE sectors, there is the highest probability of wind blowing from the direction of the plant. The two gardens used for vegetable samples by the Radiological Environmental Monitoring Program have been placed in the sectors with the highest D/Q. One sampling garden is located in the S sector at a distance of 0.7 km, and another is situated near the site boundary between the SSE and SE sectors at a distance of 2.6 km from the plant. These two sampling sites are considered good indicator locations for radioactive depositions around the plant.

The dose assessment using 2000 meteorological data was performed, and no significant impact from the plant was found.

87

January 1 - December 3 1, 2000 Docket Nos. 50-317/318 (LEFT BLANK) 88

January 1 - December 31, 2000 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 2000. These extra samples are not required by the Off Site Dose Calculation Manual (6). They were collected and analyzed to maintain the historical continuity for samples and sampling pathways discontinued when the Environmental Technical Specifications were changed in March, 1985. Additionally, they include the Pressurized Ion Chambers added for the Independent Spent Fuel Storage Installation.

Table E-9 shows the average monthly direct radiation as measured by the pressurized ion chamber at five locations.

Table E-Il shows the direct radiation readings from TLDs placed at the perimeter of the interim resin storage area located to the west of the ISFSI facility. This storage area is located inside the owner controlled area. Public access to this area is limited. The TLD values are higher than those in the REMP program due to their proximity to the source of the radiation. However, 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.

89

January I - December 31, 2000 Dockel Nos. 50-317/318 (LEFT BLANK) 90

January 1 - December 31, 2000 Docket Nos. 50-317/318 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page E-1 Locations of Non-ODCM Environmental Sampling Stations for Calvert Cliffs Nuclear Power Plant ..................................................................................... 92 E-2 Synopsis of 2000 Calvert Cliffs Nuclear Power Plant Non-ODCM Radiological Environm ental M onitoring Program ................................................................................... 93 E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units 1 & 2 Non-ODCM Radiological Environmental Monitoring Program .............................................................. 94 E-4 Concentration of Gamma Emitters in Bottom Sediment ................................................... 95 E-5 Concentration of Iodine- 131 in Filtered Air ....................................................................... 96 E-6 Concentration of Beta Emitters in Air Particulates ............................................................ 98 E-7 Concentration of Gamma Emitters in Air Particulates .......................................................... 100 E-8 Concentration of Tritium and Gamma Emitters in Taylors Island Well Water ..................... 101 E-9 Direct Radiation as Measured in Pressurized Ion Chamber .................................................. 102 E-10 D irect R adiation ..................................................................................................................... 103 E-i1 Direct Radiation from Interim Resin Storage Area ............................................................... 104 91

January 1 - December 31, 2000 Docket Nos. 50-317/3 18 "FABLE E-1 Locations of Non-ODCM Environmental Sampling Stations for Calvert Cliffs Nuclear Power Plant Distance' Direction' Station Description (KM) (Miles) (Sector)

A6 Long Beach 4.4 2.7 NW A7 Taylors Island, Carpenter's Property 12.6 7.8 ENE A8 Cambridge, U of MD Estuarine Center 32.0 19.9 NE DR24 Route 4 and Parran Road 3.0 1.9 SW DR25 Camp Conoy Guard House 1.0 0.6 S DR26 Route 234 & Clarks Landing Rd. 20.5 12.7 SW DR27 Route 231 & Route 4 23.0 14.3 NW DR28 Taylors Island Emergency Siren 035 12.3 7.6 ENE DR29 Taylors Island Emergency Siren r38 12.5 7.8 E DR31 Cambridge, U of MD Estuarine Center 32.0 19.9 NE DR32 Twining Property, Taylors Island 12.3 7.6 NE DR33 P.A. Ransome Property, Taylors Island 14.8 9.2 ESE DR34 Shoreline at Barge Road 0.2 0.1 NE PICI Taylors Island, Carpenter's Property 12.6 7.8 ENE PIC2 On Site before Entrance to Camp Conoy 0.7 0.4 S PIC3 Meteorological Station 0.8 0.5 WSW PIC4 NNW of ISFSI 0.6 0.4 SW PIC5 South of ISFSI 0.6 0.4 SW PIC8 CCNPP Visitor's Center 0.3 0.2 NW Wbs I Intake Area 0.2 0.1 NE Wbs2 Discharge Area 0.3 0.2 N Wbs3 Long Beach 4.4 2.7 NW Wbs4 Camp Conoy/Rocky Point 3.0 1.9 SE Ww I Taylors Island, Carpenter's Property 12.6 7.8 ENE Distance and direction from the central point between the two containment buildings.

92

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E-2 Synopsis of 2000 Calvert Cliffs Nuclear Power Plant Non-ODCM Radiological Environmental Monitoring Program Sample Type Sampling Frequency1 Number of Locations Number Collected Analysis Analysis Frequency' Number Analyzed Aquatic Environment Bottom Sediment Q 4 16 Gamma Q 16 Atmospheric Environment Air Iodine 2 W 7 360 1-131 W 360 Air Particulates 3 W 3 155 Gross Beta W 155 Gamma MC 36 Direct Radiation Pressurized Ion Chamber M 6 66 Gamma M 66 Ambient Radiation Q 18 426 TLD Q 426 Terrestrial Environment Ground water M 2 12 Gamma M 12 H-3 M 12 W-weekly, M-monthly, Q-quarterly, SA-semiannual, A-annual, C-composite 2 The collection device contains silver zeolite Beta counting is perfomed after > 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months decay. Gamma spectroscopy performed on monthly composites of weekly samples 93

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units I & 2 Non-ODCM Radiological Environmental Monitoring Program Medium or Pathway Type and Total Lower Limit of Indicator Locations Location with Highest Annual Control Locations Sampled (Unit of Number of Detection (LLD) Mean (F)/Range 1 Highest Annual Mean (F) / Range' Mean (F)/Range' Measurement) Analyses Mean Performed Name/Distance 2 Direction Aquatic Environment Bottom Sediment Gamma (16) 33 161 (10/12) Discharge Area 217 (4/4) 145 (4/4)

(pCi/kg) Cs-1 37 (20-255) Wbs2 (162-255) (121-167) 0.3 km N Atmospheric Environment Air Particulates Gross Beta 0.5 1.7 (103/103) Cambridge A8 1.8 (51/52) 1.5 (52/52)

(10-2 pCi/m3 ) (155) (0.4-3.8) 32 km NE (0.4-3.8) (0.4-3.8)

Direct Radiation Ambient Radiation TLD (438) -- 17.14 (426/426) South Fence Lower 36.58 (24/24) -

(mR/90 days) (8.23-39.92) RPDR10 (32.55-39.92) -

km Pressurized Ion Ionization 5.65 (55/55) NNW of ISFSI PIC4 9.23 (11/11) 5.74 (11/11)

Chamber Chamber (66) (3.68-10.26) 0.6 km SW (8.88-10.26) (5.44-6.09)

(mR/30 days)

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.

94

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E-4 Concentration of Gamma Emitters in Bottom Sediment (Results in units of pCi/kg (dry) +/- 2 a)

Sample Code Sample Date Cs-1 37 Gamma Emitters Wbsl 03/24/2000 1

Intake Area 06/20/2000

08/11/2000 20 +/- 14

10/18/2000 31 +/- 21

Wbs2 03/24/2000 162 +/- 47 Discharge Area 06/20/2000 207 +/- 39

08/11/2000 255 +/- 56

10/18/2000 244 +/- 56

Wbs3 03/24/2000 165 +/- 42

Long Beach 06/20/2000 172 +/- 50

08/11/2000 196 +/- 44

10/18/2000 160 +/- 45

Wbs4 2 03/24/2000 136 +/- 45

Camp Conoy/ Rocky Point 06/20/2000 167 +/- 43 08/11/2000 155 +/- 43

10/18/2000 121 +/- 44 *

"Non-Natural Gamma Emitters < MDA

'This Isotope < MDA "2Control Location 95

January I - December 31, 2000 Docket Nos. 50-317/318 Table E-5 Concentration of Iodine-131 in Filtered Air (Results in units of 10.' pCi/m3 +/- 2a)

Start Date Stop Date A6 A7 1 A8 SFA1 SFA21 SFA3 SFA4 Long Taylors Cambridge MET Visitors NNW of South of Beach Island Station Center ISFSI ISFSI MMA/IO)N/n f)4/'" * * * * * . +

01/10/2000 01/17/2000 * * * * *

01/17/2000 01/27/2000 *

01/27/2000 01/3112000 2 *

01/31/2000 02/07/2000 * *

02/0712000 02/14/2000 * *

02/14/2000 02/22/2000

02/22/2000 02/2812000 * *

02/28/2000 03/06/2000 * *

03/06/2000 03/13/2000 * *

03/13/2000 03/2012000 *

03/20/2000 03/27/2000 * * * * *

03/27/2000 04/03/2000 * * * *

04/03/2000 04/10/2000 *

04/10/2000 04/17/2000 * *

04/17/2000 04/24/2000 *r 04/24/2000 05/01/2000 * * *

05/01/2000 05/09/2000 * *

05/09/2000 05/15/2000 * *

05/15/2000 05/22/2000 *

05/22/2000 05/30/2000 * *

05/30/2000 06/05/2000 *

k 06/05/2000 06/12/2000 * * *

06/12/2000

2 06/19/2000 * *

06/19/2000 06/26/2000 *

06126/2000 07/03/2000 * * *ll 07/03/2000 07/10/2000 * * *A 07/10/2000 07/17/2000 * * *

07/17/2000 07/24/2000 * * *

07/24/2000 07/31/2000 *

07/31/2000 08/07/2000 * *

08/07/2000 08/14/2000 * * *

k 08/14/2000 08/2112000 * *

08/21/2000 08/2812000 * *

' Control Location "2Sampler malfunction/low flow

"< MDA 96

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E Continued Concentration of Iodine-131 in Filtered Air (Results in units of 10'3 pCi/ma +/- 2a)

Start Date Stop Date A6 A7V A8 SFA1 SFA21 SFA3 SFA4 Long Taylors Cambridge MET Visitors NNW of South of Beach Island Station Center ISFSI ISFSI 08/28/2000 09/05/2000 * ......

09/05/2000 09111/2000 .......

09/11/2000 09/18/2000 * ......

09/18/2000 09/25/2000 * * * ....

09/25/2000 10/02/2000 * * * ....

10/02/2000 10/09/2000 * * * * * *

10/09/2000 10/16/2000 * * * * * *

10/16/2000 10/23/2000 * * * * * *

10/23/2000 10/30/2000 * .... *

10/30/2000 11/06/2000 * * * * * *

11/06/2000 11/13/2000 * * * * * *

11/13/2000 11/20/2000 * * * * * *

11/20/2000 11/27/2000 * * * * *

11/27/2000 12/05/2000 * * * * * *

12/05/2000 12/11/2000 * * * * * *

12/11/2000 12/18/2000 * * .....

12/18/2000 12/26/2000 .......

12/26/2000 01/02/2001 * * * * * *

97

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E-6 Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/m3 +/- 2a)

Start Date Stop Date A6 A7V A8 Long Beach Taylors Island Cambridge 01/03/2000 01/10/2000 1.7 +/- 0.2 1.5 +/- 0.2 2.1 +/- 0.2 01/10/2000 01/17/2000 1.7 +/- 0.2 1.6 +/- 0.2 1.9 +/- 0.3 01/17/2000 01/27/2000 3.2 +/- 0.2 3.1 +/-0.3 3.1 +/-0.4 01/27/2000 01/31/2000 1.3 +/- 0.3 1.4 +/- 0.2 1.9+/- 0.2 01/31/2000 02/07/2000 2.2 +/- 0.2 3.8 +/- 0.4 2.5 +/- 0.2 02/07/2000 02/14/2000 2.5 +/- 0.2 1.8 +/- 0.2 2.6 +/- 0.3 02/14/2000 02/22/2000 1.5 +/- 0.1 1.6 +/- 0.2 1.8 +/- 0.3 02/22/2000 02/28/2000 1.5 +/- 0.2 1.4 +/- 0.2 1.5 +/- 0.2 02/28/2000 03/06/2000 1.5 +/- 0.2 1.4 +/- 0.2 1.7 +/- 0.2 03/06/2000 03/13/2000 1.8 +/- 0.2 1.4 +/- 0.2 3.1 +/- 0.3 03/13/2000 03/20/2000 1.4 +/- 0.2 1.0 +/- 0.2 2 03/20/2000 03/27/2000 1.0 +/- 0.2 1.2 +/- 0.2 1.1 +/-0.2 03/27/2000 04/03/2000 1.4 +/- 0.2 1.5 +/- 0.2 1.7 +/- 0.3 04/03/2000 04/10/2000 1.0 +/- 0.1 1.6 +/- 0.2 1.5 +/- 0.2 04/10/2000 04/17/2000 1.0 +/- 0.2 1.0 +/- 0.2 1.1 +/-0,2 04/17/2000 04/24/2000 0.4 +/- 0.1 0.4 +/- 0.2 0.4 +/- 0.2 04/24/2000 05/01/2000 1.3 +/- 0.2 1.4 +/- 0.2 1.3 +/- 0.2 05/01/2000 05/09/2000 1.8 +/- 0.2 2.2 +/- 0.3 2.2 +/- 0.3 05/09/2000 05/15/2000 1.6 +/- 0.2 1.7 +/- 0.2 1.2 +/- 0.2 05/15/2000 05/22/2000 1.0 +/- 0.2 1.1 +/- 0.2 0.9 +/- 0.2 05/22/2000 05/30/2000 0.7 +/- 0.1 1.0 +/- 0.2 0.9 +/- 0.2 05/30/2000 06/05/2000 0.9 +/- 0.2 0.7 +/- 0.1 0.5 +/- 0.2 06/05/2000 06/12/2000 1.6 +/- 0.2 0.4 +/- 0.1 1.2+/- 0.2 06/12/2000 06/19/2000 0.6 +/- 0.2 0.5 +/- 0.2 0.5 +/- 0.2 06/19/2000 06/26/2000 1.3 +/- 0.2 0.6 +/- 0.1 0.7 +/- 0.2 06/26/2000 07/03/2000 1.2 +/- 0.2 1.6 +/- 0.3 1.1 +/-0.3 07/03/2000 07/10/2000 1.1 +/-0.2 0.9 +/- 0.1 0.9 +/- 0.2 07/10/2000 07/17/2000 1.1 +/-0.2 0.8 +/- 0.2 1.8+/- 0.3 07/17/2000 07/24/2000 1.8 +/- 0.2 1.3 +/- 0.2 1.6+/- 0.2 07/24/2000 07/31/2000 0.6 +/- 0.2 0.6 +/- 0.1 0.8 +/- 0.2 07/31/2000 08/07/2000 0.6 +/- 0.2 1.4 +/- 0.2 1.6+/- 0.2 08/07/2000 08/14/2000 0.8 +/- 0.2 0.9 +/- 0.2 0.9 +/- 0.2 08/14/2000 08/21/2000 1.2 +/- 0.2 1.3 +/- 0.2 1.8+/- 0.2 08/21/2000 08/28/2000 1.5 +/- 0.2 1.5 +/- 0.2 2.2 +/- 0.3

' Control Location 2 Sampler malfunction/low flow 98

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E Continued Concentration of Beta Emitters in Air Particulates (Results in units of 10.2 pCi/m3 +/- 2,u)

Start Date Stop Date A6 A7V A8 Long Beach Taylors Island Cambridge 08/28/2000 09/05/2000 0.8++/-0.1 0.9 +/- 0.2 1.1 +/- 0.2 09/05/2000 09/11/2000 1.4 +/- 0.2 1.2 +/- 0.2 1.8 +/- 0.2 09/11/2000 09/18/2000 1.3 +/- 0.2 1.4 +/- 0.2 1.6 +/- 0.2 09/18/2000 09/25/2000 1.0 +/- 0.2 0.8 +/- 0.1 0.6 +/- 0.2 09/25/2000 10/02/2000 1.7 +/- 0.2 1.6 +/- 0.2 2.1 +/- 0.2 10/02/2000 10109/2000 2.1 +/- 0.2 2.0 +/- 0.2 2.4 +/- 0.3 10/09/2000 10/16/2000 3.4 +/- 0.3 3.4 +/- 0.3 3.8 +/- 0.3 10/16/2000 10/23/2000 2.6 +/- 0.3 2.6 +/- 0.2 3.1 +/- 0.3 10/23/2000 10/30/2000 2.1 +/- 0.2 2.2 +/- 0.2 2.2 +/- 0.2 10/30/2000 11/06/2000 1.5 +/- 0.2 1.7 +/- 0.2 1.7 +/- 0.2 11/06/2000 11/13/2000 1.4 +/- 0.2 1.0 +/- 0.2 1.5 +/- 0.2 11/13/2000 11/20/2000 2.9 +/- 0.2 3.8 +/- 0.3 3.7 +/- 0.3 11/20/2000 11/27/2000 1.3 +/- 0.2 1.4 +/- 0.2 1.4 +/- 0.2 11/27/2000 12/05/2000 2.0 +/- 0.2 2.4 +/- 0.2 2.3 +/- 0.2 12/05/2000 12/11/2000 2.3 +/- 0.2 2.1 +/- 0.2 2.3 +/- 0.2 12/11/2000 12/18/2000 1.5 +/- 0.2 2.2 +/- 0.2 2.5 +/- 0.2 12/18/2000 12/26/2000 3.6 +/- 0.2 1.4 +/- 0.1 3.5 +/- 0.2 12/26/2000 01/02/2001 2.0 +/- 0.2 2.2 +/- 0.2 2.4 +/- 0.2 99

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E-7 Concentration of Gamma Emitters in Air Particulates (Results in units of 10-3 pCi/m3 + 2a)

Sample Date A6 A7V A8 Long Beach Taylors Island Cambridge 01/15/2000 * *

02/15/2000 * *

03/15/2000 * *

04/15/2000 * *

05/15/2000 * *

06/15/2000 * *

07/15/2000 * *

08/15/2000 * *

09/15/2000 * *

10/15/2000 * *

11/15/2000 * *

12/15/2000 * * *

"Non-Natural Gamma Emitters < MDA Control Location 100

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E-8 Concentration of Tritium and Gamma Emitters in Taylors Island Well Water (Results in units of 10-3 pCi/m 3 +/- 2a)

Sample Date H-3 Gamma Emitters 02/01/2000 <39 02/29/2000 <39 03/29/2000 <38 05/02/2000 <37 05/30/2000 <37 06/28/2000 <37 08/01/2000 <37 08/29/2000 <37 09/26/2000 <38 10/31/2000 <38 12/05/2000 <37

'Non-Natural Gamma Emitters <MDA 101

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E-9 Direct Radiation as Measured in Pressurized Ion Chamber (Results in units of mR/30 days +/- 10%)

Sample Code Month Month PICI' JAN 5.85 +/- 0.60 FEB 5.80 +/- 0.58 Taylor's Island MAR 6.09 +/- 0.61 APR 5.70 +/- 0.57 MAY 5.78 +/- 0.59 JUN 5.70 +/- 0.57 JULY Unavailable AUG 5.44 +/- 0.54 SEP 5.44 +/- 0.54 OCT 5.63 +/- 0.56 NOV 5.88 +/- 0.60 DEC 5.84 +/- 0.58 PIC2 JAN 3.97 +/- 0.40 FEB 3.87 +/- 0.39 Entrance to Camp MAR 4.00 +/- 0.40 APR 3.97 +/- 0.40 Conoy MAY 3.93 +/- 0.39 JUN 3.88 +/- 0.39 JULY Unavailable AUG 3.70 +/- 0.37 SEP 3.68 +/- 0.37 OCT 3.77 +/- 0.34 NOV 4.02 +/- 0.40 DEC 4.32 +/- 0.43 PIC3 JAN 4.88 +/- 0.49 FEB 4.95 +/- 0.50 MET Station MAR 5.19 +/- 0.52 APR 5.51 +/- 0.55 MAY 5.00 +/- 0.50 JUN 4.62 +/- 0.46 JULY Unavailable AUG 5.28 +/- 0.53 SEP 4.86 +/- 0.49 OCT 4.96 +/- 0.50 NOV 4.95 +/- 0.50 DEC 4.91 +/- 0.49 PIC4 JAN 8.88 +/- 0.89 FEB 8.96 +/- 0.90 NNW of ISFSI MAR 9.16 +/- 0.92 APR 9.22 +/- 0.92 MAY 9.03 +/- 0.90 JUN 8.93 +/- 0.89 JULY Unavailable AUG 9.03 +/- 0.90 SEP 9.01 +/- 0.90 OCT 9.38 +/- 0.94 NOV 9.68 +/- 0.97 DEC 10.26 + 1.03 PIC5 JAN 4.77 +/- 0.48 FEB 4.68 +/- 0.47 S of ISFSI MAR 4.84 +/- 0.48 APR 4.80 + 0.48 MAY 5.19 +/- 0.52 JUN 5.14 + 0.51 JULY Unavailable AUG 5.20 + 0.52 SEP 5.20 +/- 0.52 OCT 5.28 + 0.53 NOV 5.10 +/- 0.51 DEC 4.82 + 0.48 PIC8 JAN 5.08 +/- 0.51 FEB 4.98 + 0.50 Visitor's Center MAR 5.22 +/- 0.52 APR 5.42 +/- 0.54 MAY 5.27 +/- 0.53 JUN 5.16 +/- 0.52 JULY Unavailable AUG 4.94 +/- 0.49 SEP 4.94 +/- 0.49 OCT 5.10 + 0.51 NOV 5.04 +/- 0.50 DEC 4.91 +/- 0.49

' Control Location 102

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E-10 Direct Radiation (Results in units of mR/90 days +/- 2a)

Location First Quarter Second Quarter Third Quarter Fourth Quarter Site Code Rt. 4 and Parran Rd. 10.98 +/- 0.82 10.50 +/- 1.74 9.86 + 0.38 10.84 +/- 1.46 DR24 Camp Conoy Guard House 13.11 +/- 3.02 11.31 +/- 0.60 11.39 + 1.53 12.33 +/- 1.20 DR25 Rt. 234 and Clark's Landing Road 10.65 +/- 0.64 9.36 +/- 0.32 9.02 +/- 0.98 10.11 +/- 0.99 DR26 DR27 Rt. 231 and Rt. 4 10.95 +/- 1.89 10.07 + 0.80 10.77 +/- 0.98 DR28 Taylors Is. Siren #35 13.41 +/- 1.19 12.42 + 0.49 12.18 + 0.99 12.69 +/- 1.79 DR29 Taylors Is. Siren #38 12.33 +/- 1.54 12.41 _ 1.61 12.12 + 0.58 13.06 +/- 0.91 DR31 Cambridge 14.14 +/- 1.83 13.66 + 0.96 12.34 +/- 2.06 14.24 +/- 1.20 DR32 Twining Property, Taylors Island 9.30 +/- 1.14 9.31 + 0.94 8.82 +/- 0.63 9.28 _ 0.49 DR33 P. A. Ransome Property 13.82 +/- 1.35 13.83 _2.11 13.14 +/- 1.39 14.34 +/- 1.76 DR34 Shoreline at Barge Rd. 8.74 +/- 0.43 8.23 + 0.25 8.23 + 0.44 9.62 + 1.03

' Missing Data 103

January 1 - December 31, 2000 Docket Nos. 50-317/318 Table E-11 Direct Radiation from Interim Resin Storage Area (Results in units of mR/90 days +/- 2a)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter RPDR05 North Fence Lower 18.94 +/- 2.55 28.54 +/- 1.73 19.73 +/- 2.05 23.10 +/- 2.33 RPDR06 North Fence Upper 35.94 +/- 4.34 28.48 + 4.74 19.73 +/- 0.82 17.30 +/- 1.72 RPDR07 West Fence Right 23.92 +/- 1.78 13.82 +/- 1.28 23.20 +/- 2.59 16.73 +/- 0.61 RPDR08 West Fence Left 19.84 +/- 1.14 24.86 +/- 2.56 14.58 +/- 1.52 18.69 + 1.77 RPDR09 South Fence Upper 31.63 +/- 1.78 29.80 +/- 3.45 32.33 +/- 5.02 27.35 +/- 3.39 RPDR1O South Fence Lower 37.91 +/- 4.30 35.95 +/- 3.07 32.55 +/- 4.02 39.92 + 4.55 RPDR1 1 East Fence Left 17.50 +/- 1.39 12.46 +/- 1.43 12.18 +/- 1.46 23.52 +/- 1.65 RPDR12 East Fence Right 24.62 +/- 1.53 27.58 +/- 3.35 24.55 +/- 1.19 20.67 +/- 1.27 104

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