Text

Independent Spent Fuel Storage Installation Radiological Environmental Monitoring Program Annual Report
	ML003712463
Person / Time
Site:	Calvert Cliffs
Issue date:	05/01/2000
From:	Earls C; Baltimore Gas & Electric Co (BGE)
To:	; NRC/OCIO/IMD/RMB
References
	+kBR1SISP20060313, -RFPFR
	Download: ML003712463 (114)
	v • d • e

Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, Maryland 20657 A Member of the ConstellationEnergy Group May 1, 2000 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), Baltimore Gas and Electric Company is submitting the Annual Radiological Environmental Monitoring Report, dated May 2000.

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/JKK/bjd Attachment cc: R. S. Fleishman, Esquire Resident Inspector, NRC J. E. Silberg, Esquire R. I. McLean, DNR Director, Project Directorate I-1, NRC J. H. Walter, PSC A. W. Dromerick, NRC P. Perzynski, MDE H. J. Miller, NRC /

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL REPORT May 2000 Calvert Cliffs Nuclear Power Plant Units 1 and 2 and the Independent Spent Fuel Storage Installation J

January 1 to December 31, 1999 seE"C

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, 1999 G. K. BARLEY L. J. BARTAL, Ph.D.

A. J. KAUPA BALTIMORE GAS AND ELECTRIC COMPANY MAY 2000

(LEFT BLANK)

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE OF CONTENTS LIST O F FIGU RE S ........................................................................................................................... iii LIST O F TAB L ES ............................................................................................................................... v I. SUM MA R Y ....................................................................................................................................... 1 II. CALVERT CLIFFS NUCLEAR POWER PLANT ............................................................... 3 I.A. INTRODUCTION .................................................................................................................................................. 3 PROGRAM P..B. ............................................................................................................................................................. 3 II.B.1 Obiectives ....................................................................................................................................................... 3 II.B.2 Sam ple Collection .......................................................................................................................................... 4 II.B3.3 Data Interpretation ....................................................................................................................................... 4 II.B.4 Program Exceptions ...................................................................................................................................... 4 II.C. RESULTS AND DISCUSSIONS .......................................................................................................................... 4 II.C.1 Aquatic Environm ent .................................................................................................................................... 5 II.C. l.a Bay Water .................................................................................................................................................... 5 II.C.l.b Aquatic O rganisms ..................................................................................................................................... 5 II.C. 1.c Shoreline Sedim ent ..................................................................................................................................... 6 II.C.2 Atmospheric Environm ent ............................................................................................................................ 9 II.C.2.a Air Particulate Filters ................................................................................................................................. 9 II.C.2.b Air Iodine .................................................................................................................................................... 9 II.C.3 Terrestrial Environm ent .............................................................................................................................. 9 II.C.3.a Vegeetation .................................................................................................................................................. 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. PRO GRA M ......................................................................................................................................................... 21 III.B.1 Obiectives .................................................................................................................................................... 21 IH.B.2 Sam ple Collection ....................................................................................................................................... 22 III.B3.3 Data Interpretation .................................................................................................................................... 22 III.B.4 Program Exceptions ................................................................................................................................... 22 III.C. RE SULTS AND DISCUSSIONS ....................................................................................................................... 22 III.C. 1 Atmospheric Environment ........................................................................................................................ 22 I1I.C. L.a Air Particulate Filters ............................................................................................................................. 22 III.C.2 Terrestrial Environm ent ............................................................................................................................ 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 C ES ............................................................................................................................ 29 A PPEN D IX A ..................................................................................................................................... 33 AP PEN D IX B ..................................................................................................................................... 47 AP PEN D IX C ..................................................................................................................................... 71 AP PEN D IX D ..................................................................................................................................... 87 AP PEN D IX E ..................................................................................................................................... 89 i

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) ii

January 1 - December 31, 1999 Docket Nos. 50-317/318 LIST OF FIGURES Figure Title Page 1 Tritium in Chesapeake Bay Water ........................................................................................ 7 2 Silver-i lOm 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 1999 Average Relative Air Concentrations ..... 15 6 Atmospheric Dispersion Around CCNPP 1999 Average Relative Ground Deposition .......... 17 7 Mean TLD Gamma Dose, ISFSI ....................................................................................... 26 A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs Nuclear Pow er Plant ................................................................................................................ 38 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations, Scale 1=1.35 km ..................... 39 A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations, Scale 1=4.0 km ....................... 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, 1999 Docket Nos. 50-317/318 (LEFT BLANK) iv

January 1 - December 31, 1999 Docket Nos. 50-317/318 LIST OF TABLES Table Title Page 1 Synopsis of 1999 Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program ................................................................................................................................................ 19 2 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant U nits andd 2 ........................................................................................................................................ 20 3 Synopsis of 1999 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 Calvert Cliffs ............................................................................................................ 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-i131 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 1999 ........................................................................... 77 C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry .................................... 86 D-1 Land U se Survey .................................................................................................................................. 87 E-1 Locations of Non-ODCM Environmental Sampling Stations for Calvert Cliffs Nuclear Power P lant ...................................................................................................................................................... 92 E-2 Synopsis of 1999 Calvert Cliffs Nuclear Power Plant Non-ODCM Radiological Environmental 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 Direct R adiation ................................................................................................................................. 103 E- 11 Direct Radiation from Resin Storage Area ........................................................................................ 104 V

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) vi

January 1 - December 31, 1999 Docket Nos. 50-317/318 I.

SUMMARY

During the 1999 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.

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, 1999 Docket Nos. 50-317/318 Low levels of various man-made fission were observed in the environment surrounding the plant during 1999. 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- 11Om 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 1.09 x 10-2 mrem via liquid and gaseous pathways, which is about 0.01% of the acceptable limit of 75 mrem/yr as specified in 40 CFR 190;

b. a maximum whole body dose of 1.27 x 102 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 6.86 x 10.1 mrem to the GI-Tract. This dose was about 3% 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 1999.

2

January 1 - December 31, 1999 Docket Nos. 50-317/318 II. CALVERT CLIFFS NUCLEAR POWER PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM II.A. INTRODUCTION Baltimore Gas and Electric Company (BGE) has been conducting a radiological environmental monitoring program in the environs of the Calvert Cliffs Nuclear Power Plant since the summer of 1970. The Calvert Cliffs site is an operating nuclear generating station consisting of two pressurized water reactors. Unit 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 (37,38). On July 29, 1977 the monitoring program began operation under a combined set of Technical Specifications (39) 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 (40). 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. (50)

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 (1-35).

Results of the monitoring program for the current operational period of January 1, 1999 through December 31, 1999 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 1999 (Table 2), a compilation of the analytical data for 1999 (Appendix B), the results of the Analytics Intercomparison Program and the Quality Assurance Program (Appendix C), the results of the Land Use Survey (Appendix D), and a compilation of the analytical data for extra samples collected in 1999 (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 1999.

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

3

January 1 - December 31, 1999 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 (41) 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, the Baltimore Gas and Electric Company according to Calvert Cliffs Nuclear Power Plant Procedures (42).

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 Throughout 1998 and 1999, oysters have not been available at Kenwood Beach (Ia6) which is the designated control location. During this time control samples were obtained from an alternate location at Hog Island (IalO). In addition to the challenges encountered at Kenwood Beach, the amount of oysters available at the Camp Conoy (1a3), which is the designated indicator location, was greatly diminished in the fourth quarter of 1999. Due to these ongoing problems with oyster collection, alternate options for sampling and analyses of other invertebrate species are being considered.

II.C. RESULTS AND DISCUSSIONS All the environmental samples collected during the year were analyzed using BGE's laboratory procedures (44). 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, 1999 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 no detectable readings were observed in the Intake (Wal) samples. The concentrations observed in the discharge ranged from 103+/-40 to 616+/-43 pCi/L, which is similar to those ranges observed in previous years, (7-35).

Figure 1 compares tritium observed in the plant discharge and intake with annual effluent releases in 1999 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.l.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 Ia5). 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 Ia3) and Hog Island (sample code lal0). As mentioned previously, Hog Island was utilized as a control location in lieu of Kenwood Beach, due to the lack of sample at Kenwood Beach. Edible portion of the fish and oyster samples were analyzed for gamma emitters.

5

January 1 - December 31, 1999 Docket Nos. 50-317/318 Gamma spectrometric analyses of the fish exhibited no detectable concentrations of any plant related radionuclides. Oyster samples exhibited low levels of detectable concentrations of the plant-related radionuclide, Ag- 11Om, in all samples obtained from Camp Conoy (Wa3). These concentrations, which ranged from 35+/-9 to 101+/-13 pCi/kg, are consistent with that expected due to liquid effluents from the plant in 1999. Three of the four quarterly oyster samples taken from Hog Island (IalO) also exhibited low levels of Ag-110m. These concentrations, which ranged from 6+/-2 to 14+/-8 pCi/kg, are less than or equal to the typical LLD for Ag-II Om as reported in Table B- 1 and are the result of a special study, involving very long counting times, which was designed to determine the true background levels of this radionuclide at this site. In addition, the flow dynamics of the Chesapeake Bay suggests that low levels of Ag- 11Om may be expected.

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

Concentration at Intake (pCi/L) Concentration at Discharge (pCi/L) Tritium In Liquid Effluents (CI/quarter) 0

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K-40 in Oysters Camp Conoy (pCi/kg) Ag-1 0m in Oysters Camp Conoy (pCi/kg) Ag-1 10m in Liquid Effluents (Ci/quarter)

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January 1 - December 31, 1999 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 showed values characteristic of background levels (7-35). The values ranged from 0.6xl0-2 to 3.9x10- 2 pCi/m 3 for the indicator locations and 0.9x10 -2 to 3.9x10 -2 pCi/m 3 at the control lo cation. The location with the highest overall mean of 1.7x10 -2 pCi/m 3 was A5, EOF.

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 same five locations as the air particulate filters 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, 1999 Docket Nos. 50-317/318 FIGURE 3 Nuclear Fallout in the Calvert Cliffs Area SURFACE AIR VAPORS, LUSBY, MD (A4) 250 ce)

E

" 20 0

°4 C-)

4-0 co C-)

"7t 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 1200 1000 R3 E TROPOSHPIERIC FALLOUT From weapons testing 800 0

0 600 C.)

STRATOSPHERIC 400 P

o(D weapons testing C9 0(

I i i-FALLUU I F-rom 200 FALLOUT From I~ c ernobyl 0

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 10

January 1 - December 31, 1999 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, IbM, 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 DRI), Route 765 Auto Dump (sample code DR2), Giovanni's Tavern (sample code DR3), Route 765 across from White Sands (sample code DR4), John's Creek (sample code 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 DRIO), 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 DR15), 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 DR1 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 11.43 mR and ranged from 8.96 to 15.83 mR as reported in Table 2. The control locations showed a 90 day mean of 12.61 mR with ranges from 9.07 to 16.32 mR. The location with the highest overall mean of 15.34 was DR23, Taylors Island, Carpenters Property, which ranged from 14.32 to 16.32 mR. A comparison of the means and ranges of the current TLD data with those of both the historical data and the regional data (7-3 5) shows no plant-related contribution to the measured direct radiation exposure for 1999. 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, 1999 Docket Nos. 50-317/318 FIGURE 4 Mean TLD Gamma Dose, Calvert Cliffs Nuclear Power Plant 6 ---- ------

-+-4Miles(DRlO-18) 5 SCortrl Locations

_1 (DR2I -2$)

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

ca o 3 E

2 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 12

January 1 - December 31, 1999 Docket Nos. 50-317/318 H.D. CONCLUSION Low levels of various man-made fission by-products were observed in the environment surrounding the plant during 1999. 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., tritium in quarterly composited bay water samples and Ag-I lOim in oysters).

Historical trends for tritium in bay water, Ag-II Om 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 1999.

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 7.84 x 10-3 mrem to a child via the plume, ground, vegetable, meat, and inhalation pathways at 1.7 km SW of the containments at Calvert Cliffs. This is about 0.01% of the acceptable limit of 75 mrem/year as specified in 40 CFR 190, "Environmental Radiation Protection Standards for Nu clear Power Operations."

A maximum whole body gamma dose of 2.39 x 10-4 mrem to a child at 1.7 km SW of the containments at Calvert Cliffs, which is < 0.01% 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 1.1 7x 10-3 mrem at 1.7 km SW 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 3.10 x 10-3 mrem to a teenager for all liquid pathways, which is < 0.01% of the acceptable dose limit of 75 mrem/year as specified in 40 CFR 190.

A maximum whole body dose of 1.25 x 10-2 mrem to a teen via all liquid pathways, which is about 0.05% of the acceptable dose limit of 25 mrem/year as stated in 40 CFR 190.

13

January 1 - December 31, 1999 Docket Nos. 50-317/318 A maximum dose to any organ, in this case the GI-Tract, of 6.86 x 10-1 mrem to an adult for all pathways, which is about 3% of the acceptable dose limit of 25 mrem/year specified in 40 CFR 190.

Gaseous and Liquid Pathways Combined A maximum thyroid dose of 1.09xl0-2 mrem via liquid and gaseous pathways, which is about 0.01% of the acceptable limit of 75 mrem/year specified in 40 CFR 190.

A maximum whole body dose of 1.27xl 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 6.86x10- 1 mrem to the GI-Tract. This dose is about 3% 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, based upon the levels of radioactivity being significantly below the limits of the Offsite Dose Calculation Manual and 40 CFR Part 190, that Calvert Cliffs Nuclear Power Plant Units 1 and 2 did not cause any significant radiological impact on the surrounding environment during 1999.

14

January 1 - December 31, 1999 Docket Nos. 50-317/318 FIGURE 5 Atmospheric Dispersion Around CCNPP 1999 Average Relative Air Concentrations CONTOUR VI, LEGEND (SEC/H3) 1 2.9E -07 f 1.BE-0T-2.-E-m7 3 ?.ABE-02-1 IE-07 4 4, BE- 02-?. E-O0' 9 2.8E 4.0E-08 G S.@E 2.0E-09

?.E-09-1.0E-OS 2 4, BE-99-?. GE-Bg 15 CA 1

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 16

January 1 - December 31, 1999 Docket Nos. 50-317/318 FIGURE 6 Atmospheric Dispersion Around CCNPP 1999 Average Relative Ground Deposition D/O LEGEND ci 111) 1 4COE-gg+

a 2.OE-Gg-4.8E-G9

1. OE-0Ig-2.BE-89

.1E-'1*1. E-09 4

5 4.OE-ll-?. OE-10B 6 2AE-16-4.OE-10 7 1 .AE-1g-2.eE-1e 2 7.JE-11-1..OE-16 4.GE-11-?.OE-11 2.OE-11-4.0E-11 17

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 18

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table 1 Synopsis of 1999 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 Fish2 A 2 4 Gamma A 4 Oysters Q 2 8 Gamma Q 8 Shoreline Sediment SA 1 2 Gamma SA 2 Atmospheric Environment Air Iodine 3 W 5 261 1-131 W 261 Air Particulates 4 W 5 262 Gross Beta W 262 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 performed 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, 1999 Docket Nos. 50-317/318 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 of Indicator Location with Highest Annual Control Locations Sampled (Unit of Number of Detection Locations Mean Highest Annual Mean (F) I Range' Mean (F)/Range' Measurement) Analyses (LLD) (F)/Range 1 Mean Performed Name/Distance 2 Direction Aquatic Environment Bay Water H-3 (8) 54 342 (4/4) Discharge Vicinity 342 (4/4) -

(pCi/L) (103-616) Wa2 (103-616) -

0.3 km N Oysters Gamma (8) 14 70 (4/4) Camp Conoy la3 70 (4/4) 11 (3/4)

(pCi/kg) Ag110m (35-101) 0.9 km E (35-101) (6-14)

Atmospheric Environment Air Particulates Gross Beta 0.5 1.5 (209/209) EOF A5 1.7 (53/53) 1.7 (53/53)

(10-2 pCi/m 3) (262) (0.6-3.9) 19.3 km WNW (0.9-3.9) (0.9-3.9)

Direct Radiation Ambient Radiation TLD (540) -- 11.43 (474/474) Taylors Island 15.34 (24/24) 12.61 (66/66)

(mR/90 days) (8.96-15.83) DR23 (14.72-16.32) (9.07-16.32) 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, 1999 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, 1999 through December 31, 1999 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 (49). Pressurized Ion Chambers' results, however, are given in table E-9 and will continue to be a surveillance to satisfy our commitment to the community.

The results for 1999 were compared with that generated during the previous ISFSI pre operational periods (36) and the current and previous CCNPP REMP periods (7-35). 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. 3.

III.B. PROGRAM III.B.1 Objectives 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, 1999 Docket Nos. 50-317/318

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

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

III.B.2 Sample Collection The locations of the individual sampling sites are listed in Table A-2 and shown in Figures A-4 and A-5. All samples were collected by BGE personnel according to Calvert Cliffs Nuclear Power Plant Procedures (42).

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 During 1999 the monitoring program was conducted in accordance with the ODCM (41) and applicable procedures (42,44). During an internal Quality Assurance audit it was noted that the Safety Analysis Report (SAR) for the ISFSI had not been updated to reflect a quarterly TLD reading frequency. A safety analysis was performed in accordance with 10 CFR 72.48. The results reaffirmed the acceptability of the quarterly frequency. The SAR is being updated.

III.C. RESULTS AND DISCUSSIONS All environmental samples collected during the year were analyzed using BGE's laboratory procedures (44). 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.

Since no source of airborne radioiodine exists for the ISFSI, sampling and analysis for this radioiodine are not performed.

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 22

January 1 - December 31, 1999 Docket Nos. 50-317/318 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.

Weekly analyses for beta activity on air particulate filters collected from all five locations showed values characteristic of levels routinely observed in the REMP (7-35). These values ranged from 0.6x10-2 to 4.2x10-2 pCi/m 3 for the indicator locations and 0.7x10-2 to 3.4x10-2 pCi/m 3 for the control location. The location with the highest overall mean of 1.8x10-2 pCi/m3 was SFA3, NNW of lSFSI.

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 fourteen quarterly samples from both indicator and control locations. The Cs-137 concentrations ranged from 38+/-42 to 920+/-86 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 (7-35) and in the earlier pre-operational data for the ISFSI (36).

23

January 1 - December 31, 1999 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, Collocated with Plant TLD #159, (sample code SFDR1); N of ISFSI, Collocated with Plant TLD #160, (sample code SFDR2); NNE of ISFSI, Collocated with Plant TLD #161, (sample code SFDR3); NE of ISFSI, Collocated with Plant TLD #162, (sample code SFDR4);

E of ISFSI, Collocated with Plant TLD #163, (sample code SFDR5); ESE of ISFSI, Collocated with Plant TLD #164, (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 SFDR1 1); 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 18.21 mR and ranged from 9.91 to 42.99 mR as reported in Table 4. The control location showed a 90 day mean of 13.45 mR and ranged from 12.55 to 15.32 mR. A comparison of the mean and ranges of the current TLD data with those of both the historical data and the regional data (7 - 36) reveals only one set of elevated TLD readings. That location with the highest overall mean of 39.78 mR with a range of 36.24 to 42.99 mR was SFDRI 0, North Northwest of ISFSI. These readings are consistent with those expected from the storage of spent fuel in the ISFSI (7 - 36). 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, 1999 Docket Nos. 50-317/318 III.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 (7-35).

25

January 1 - December 31, 1999 Docket Nos. 50-317/318 FIGURE 7 Mean TLD Gamma Dose, ISFSI 7

-.-- Control Location (SFDR7) 6

--- ISFSI Mean (DR7 & 30, SFDR1-6, 8-16) 5 "Co 4 W--

0 3

E 2

1 0

90 91 92 93 94 95 96 97 98 99 26

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table 3 Synopsis of 1999 Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Radiological Environmental Monitoring Program Sample Type Sampling Number of Locations Number Collected Analysis Analysis Frequency' Number Analyzed Frequency' Atmospheric Environment Air Particulates 2 W 5 261 Gross Beta W 261 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 performed 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 31, 1999 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 Locations Location with Highest Control Sampled (Unit of Total of Detection Mean (F)/Range' Highest Annual Mean Annual Mean Locations Measurement) Number of (LLD) Name/Distance & (F) / Range' Mean Analyses Direction2 (F)/Range' Performed Atmospheric Environment Air Particulates Gross Beta 0.5 1.7 (209/209) NNW of ISFSI SFA3 1.8 (53/53) 1.7 (52/52)

(10.2 pCi/m 3) (261) (0.6-4.2) 0.1 km NNW (0.8-3.6) (0.7-3.4)

Direct Radiation Ambient Radiation TLD (432) -- 18.21 (408/408) NNW of ISFSI 39.78 (24/24) 13.45 (24/24)

(mR/90 days) (9.91-42.99) SFDR10 (36.24-42.99) (12.55-15.32) 0.1 kmNNW Terrestrial Environment Soil Gamma (20) 17 521 (10/16) NNW of ISFSI SFs3 770 (4/4) 135 (4/4)

(pCi/kg) Cs-137 (38-920) 0.1 km NNW (655-920) (99-229)

'Mean 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, 1999 Docket Nos. 50-317/318 IV. REFERENCES (1) Cohen, L. K., "Preoperational Environmental Radioactivity Monitoring Program at Calvert Cliffs Units 1 and 2", NUS No. 882 Semiannual Report January-June 1971, December 1971; NUS No. 1025 Annual Report 1971, March 1973.

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

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

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

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

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

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

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

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

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

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

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

29

January 1 - December 31, 1999 Docket Nos. 50-317/318 (13) Baltimore Gas and Electric Company and Radiation Management Corporation, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Semiannual Report, July 1 - December 31, 1976, RMC-TR-77-07, March 1977.

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

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

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

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

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

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

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

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

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

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

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

30

January 1 - December 31, 1999 Docket Nos. 50-317/318 (25) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31, 1988, March 1989.

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

(27) Baltimore Gas and Electric Company, Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Annual Report, January 1 - December 31, 1990, March 1991.

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

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

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

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

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

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

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

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

(36) 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.

31

January 1 - December 31, 1999 Docket Nos. 50-317/318 (37) Calvert Cliffs Nuclear Power Plant, Unit Number 1, License No. DPR-53, Appendix A, Technical Specifications; Appendix B, Environmental Technical Specifications.

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

(39) 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.

(40) 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.

(41) Off-Site Dose Calculation Manual for the Baltimore Gas & Electric Company Calvert Cliffs Nuclear Power Plant, Revision 3, April 1998.

(42) CP-234, Specification and Surveillance for the Radiological Environmental Monitoring Program, Revision 2, November 1996.

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

(44) Baltimore Gas and Electric Company, Laboratory Procedures Manual, Chemistry Unit, Fossil Engineering and Maintenance Dept., 1998.

(45) Calvert Cliffs Nuclear Power Plant, Docket Nos. 50-317/318 Semiannual Effluent Release Reports: January - June 1998 and July - December 1998.

(46) 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.

(47) 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.

(48) Baltimore Gas and Electric Company, "Land Use Survey Around Calvert Cliffs Nuclear Power Plant", 1999.

(49) 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.

(50) 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.

32

January 1 - December 31, 1999 Docket Nos. 50-317/318 APPENDIX A Appendix A contains information concerning the environmental samples which were collected during the period January 1, 1999 to December 31, 1999.

Sample locations and specific information about individual locations for the CCNPP Radiological Environmental Monitoring Program are given in Table A-1. Figure A-I 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, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 34

January 1 - December 31, 1999 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 Power Plant ................................................................................................................ 38 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations, Scale 1" = 1.35 km ................... 39 A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations, Scale 1" = 4.0 km .................... 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, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 36

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE A-1 Locations of Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant Distance' Direction' Station Description (Kilometers) (Sector)

Al 2 On Site before Entrance to Camp Conoy 0.7 S A2 Camp Conoy at Emergency Siren 2.5 SSE A3 Bay Breeze Road 2.6 SE A4 Route 765 Lusby 2.9 SSW A5 Emergency Operations Facility (EOF) 19.3 WNW DR1 On Site along Cliffs 0.6 NW DR2 Route 765, Auto Dump 2.7 WNW DR3 Route 765, Giovanni's Tavern (Knotty Pine) 2.3 W DR4 Route 765, across from White Sands Drive 2.0 WSW DR5 Route 765, John's Creek 2.4 SW DR6 2 Route 765 Lusby 2.9 SSW DR7 On Site before Entrance to Camp Conoy 0.7 S DR8 Camp Conoy at Emergency Siren 2.5 SSE DR9 Bay Breeze Road 2.6 SE DR10 Calvert Beach Rd. and Decatur Street 6.4 NW DR1 1 Dirt road off Mackall & Parran Roads 6.6 WNW DR12 Mackall and Bowen Roads 6.7 W DR13 Mackall Rd. near Wallville 6.1 WSW DR14 Rodney Point 6.4 SW DR15 Mill Bridge and Turner Roads 6.2 SSW DR16 Across from Appeal School 6.5 S DR17 Cove Point and Little Cove Point Roads 5.9 SSE DR18 Cove Point 7.1 SE DR19 Long Beach 4.4 NW DR20 On Site near shore 0.4 NNW DR21 Emergency Operations Facility (EOF) 19.3 WNW DR22 Solomons Island 12.5 S DR23 Taylors Island, Carpenter's Property 12.6 ENE lal,2 Discharge Area 0.3 N la3 Camp Conoy 0.9 E la4,5 Patuxent River N/A N/A la6 Kenwood Beach3 10.7 NNW lal0 Hog Island 15.3 SSE Ibl,2,3 Garden Off Bay Breeze Road 2.6 SSE Ib4,5,6 On Site before Entrance to Camp Conoy 0.7 S Ib7,8,9 Emergency Operations Facility (EOF) 19.3 WNW Wal Intake Area 0.2 NNE Wa2 Discharge Area 0.3 N Wbl Shoreline at Barge Rd. 0.6 ESE 1 Distance and direction from the central point between the two containment buildings.

2 Common to both the R.EMP and ISFSI monitoring program.

3Samples were collected at Hog Island (Ial 0) in lieu of Kenwood Beach. See discussion in Program Exceptions (II.b.4).

37

January 1 - December 31, 1999 Docket Nos. 50-317/318 FIGURE A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs Nuclear Power Plant S___

38

January 1 - December 31, 1999 Docket Nos. 50-317/318 FIGURE A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations Scale 1" = 1.35 km .,

0A2 ~Wal V

/// *1 CCNPP Environmental Sampling Sites A-;

"7 [(I. 5' 39

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 40

January 1 - December 31, 1999 Docket Nos. 50-317/318 FIGURE A-3 Calvtrt Cliffs Nt ,clear Power Plant(

'Scale 1" = 4.0

- '*':4) 2 K 'I

\ \

1 0E CCNPP Environmental Sampling Sites I'

41

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 42

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE A-2 Locations of Environmental Sampling Stations for the Independent Spent Fuel Storage Installation at Calvert Cliffs Distance' Direction1 Station Description (Kilometers) (Sector)

TIAT SFA1 On Site before Entrance to Camp Conoy 0.7 SE Meteorological Station 0.4 NW SFA2 CCNPP Visitors Center 0.7 NNE SFA3 NNW of ISFSI 0.1 NNW SFA4 South of ISFSI 0.1 S SFDR1 Collocated with Plant TLD #159 0.1 SW SFDR2 Collocated with Plant TLD #160 0.1 N SFDR3 Collocated with Plant TLD #161 0.1 NNE SFDR4 Collocated with Plant TLD #162 <0.1 NE SFDR5 Collocated with Plant TLD #163 <0.1 E SFDR6 Collocated with Plant TLD #164 0.1 ESE SFDR7 CCNPP Visitors Center 0.7 NNE SFDR8 North Northwest of ISFSI 0.1 NNW SFDR9 South of ISFSI 0.1 S SFDR10 NNW of ISFSI 0.1 NNW SFDR11 WNW of ISFSI 0.1 WNW SFDR12 West of ISFSI <0.1 W SFDR13 SSW of ISFSI <0.1 SSW SFDR14 SSE of ISFSI 0.1 SSE SFDR15 ENE of ISFSI <0.1 ENE SFDR16 WSW of ISFSI <0.1 WSW DR72 3 On Site before Entrance to Camp Conoy 0.7 SE DR30 Meteorological Station 0.4 NW SFbl Meteorological Station 0.4 NW SFb2 CCNPP Visitor's Center 0.7 NNE SFb3 NNW of ISFSI 0.1 NNW SFb4 South of ISFSI 0.1 S SFb5 On Site before Entrance to Camp Conoy 0.7 SE SFS1 Meteorological Station 0.4 NW SFS2 CCNPP Visitors Center 0.7 NNE SFS3 NNW of ISFSI 0.1 NNW SFS4 South of ISFSI 0.1 S SFS5 On Site before Entrance to Camp Conoy 0.7 SE

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

2 Common to both the REMP and ISFSI monitoring program 3 Formerly part of the historical non-Technical Specification monitoring program. DR30 became a Tech Spec location when it was designated part of the ISFSI monitoring program.

43

January 1 - December 31, 1999 Docket Nos. 50-317/318 FIGURE A-4 Independent Spent Fuel Storage Installation Sampling Locations SODR- S"pe]7UdD~edRtfd VA - Sp 7 W "drSa=Wkr HlC - Preininzd bCkhber 44

January 1 - December 31, 1999 Docket Nos. 50-317/318 FIGURE A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations A -k ASmqgv DR - O'm)Dl~n l.Ltadah.

OPA SPOXIOsndaR.k t KC Preuw.dhwbGCh..h 45

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 46

January 1 - December 31, 1999 Docket Nos. 50-317/318 APPENDIX B Appendix B is a presentation of the analytical results of the 1999 Calvert Cliffs Nuclear Power Plant and the Independent Spent Fuel Storage Installation environmental monitoring programs.

47

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 48

January 1 - December 31, 1999 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 IF S F I........................................................................................................................................ 63 B-9 Concentration of Gamma Emitters in Soil Samples From Locations Around the IS F S I ....................................................................................................................................... 64 B-1 0 Typical MDA Ranges for Gamma Spectrometry ....................................................... 65 B-11 Typical LLDs for Gamma Spectrometry ...................................................................... 66 B-12 D irect R adiation ..................................................................................................................... 67 49

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table B-1 Concentration of Tritium and Gamma Emitters in Bay Water (Results in units of pCi/L +/- 2a)

Sample Code Sample Date H-31 Gamma Emitters Wal 01/15/1999 Intake Vicinity 02/15/1999 03/15/1999 03/31/1999 <42 04/15/1999 05/15/1999 06/15/1999 06/30/1999 <39 07/15/1999 08/15/1999 09/15/1999 09/30/1999 <41 10/15/1999 11/15/1999 12/15/1999 12/31/1999 <60 Wa2 01/15/1999 Discharge Vicinity 02/15/1999 03/15/1999 03/31/1999 103 +/- 40 04/15/1999 05/15/1999 06/15/1999 06/30/1999 616 +/- 43 07/15/1999 08/15/1999 09/15/1999 09/30/1999 291 +/- 41 10/15/1999 11/15/1999 12/15/1999 12/31/1999 356 +/- 61 "Non-Natural Gamma Emitters < MDA Quarterly composite of monthly samples 50

January 1 - December 31, 1999 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 08/03/1999 Spot

Discharge Area la2 08/04/1999 Striped bass Discharge Area la41 08/03/1999 Spot Patuxent River la51 08/04/1999 Striped bass Patuxent River

Non-Natural Gamma Emitters < MDA

'Control Location 51

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table B-3 Concentration of Gamma Emitters in Oyster Samples (Results in units of pCi/kg (wet) +/- 2a)

Sample Code Sample Ag110im Gamma Emitters Date lal0 1 03/25/1999 12+/-6

Hog Island 06/16/1999 6 +/-2

08/03/1999 14+/-8

10/06/1999 2 .

la3 03/25/1999 35 +/- 9

Camp Conoy 06/28/1999 58 +/- 10

08/05/1999 101 +/- 13

10/06/1999 86 +/- 14 *

"Non-Natural Gamma Emitters < MDA Substitute (or alternate) control location 2 This Isotope < MDA 52

January 1 - December 31, 1999 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 Wbl Shoreline at Barge Rd. 05/26/1999 1 09/20/1999 1

'Non-Natural Gamma Emitters <MDA 53

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table B-5 Concentration of Iodine-131 in Filtered Air (Results in units of 10-3 pCi/m3 +/- 2a)

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 12/28/1998 01104/1999 .....

01/04/1999 01/11/1999 .....

01/11/1999 01/18/1999 .....

01/18/1999 01/25/1999 .....

01/25/1999 02/01/1999 .....

02/01/1999 02/08/1999 .....

02/08/1999 02/16/1999 .....

02/16/1999 021/23/1999 *

2 .

02/23/1999 03/01/1999 .....

03/01/1999 03/08/1999 .....

03/08/1999 03/15/1999 .....

03/15/1999 03/22/1999 .....

03/22/1999 03/29/1999 .....

03/29/1999 04/05/1999 .....

04/05/1999 04/12/1999 .....

04/12/1999 04/19/1999 .....

04/19/1999 04/26/1999 .....

04/26/1999 05/03/1999 .....

05/03/1999 05/10/1999 .....

05/10/1999 05/17/1999 .....

05/17/1999 05/24/1999 .....

05/24/1999 06/01/1999 .....

06/01/1999 06/07/1999 .....

06/07/1999 06/14/1999 .....

06/14/1999 06/21/1999 .....

06/21/1999 06/28/1999 .....

06/28/1999 07/06/1999 .....

07/06/1999 07/12/1999 .....

07/12/1999 07/19/1999 .....

07/19/1999 07/26/1999 .....

07/26/1999 08/02/1999 .....

"<MDA Control Location 2 Sampler malfunction/low flow 54

January 1 - December 31, 1999 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 1 Entrance to Camp Conoy Bay Breeze Route 765 at EOF Camp Conoy Siren Rd Lusby 08/02/1999 08109/1999 * * * *

08/09/1999 08/16/1999 * * * *

08/16/1999 08/23/1999 * * * *

08/23/1999 08/30/1999 1 . . * .

08/30/1999 09/07/1999 * ....

09/07/1999 09/13/1999 * * * *

09/13/1999 09/20/1999 . . 2 .

09/20/1999 09/27/1999 * * * *

09/27/1999 10/04/1999 .....

10/04/1999 10/11/1999 * * * *

10/11/1999 10/18/1999 * * * *

10/18/1999 10/25/1999 * * * *

10/25/1999 11/01/1999 .....

11/01/1999 11/08/1999 * * * *

11/08/1999 11/15/1999 * * * *

11/15/1999 11/22/1999 * * * *

11/22/1999 11/29/1999 * * * *

11/29/1999 12/06/1999 * * * *

12/06/1999 12/13/1999 * * * *

12/13/1999 12/20/1999 * * * *

12/20/1999 12/28/1999 ....

12/28/1999 01/03/2000 * * * * *

< MDA

'Sampler malfunction/low flow 2 Iodine cartridge missing 55

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table B-6 Concentration of Beta Emitters in Air Particulates (Results in units of 10.2 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 12/28/1998 01/04/1999 1.7 +/- 0.2 1.4 +/- 0.2 1.6 +/- 0.2 1.8 +/- 0.2 1.8 +/- 0.3 01/04/1999 01/11/1999 1.8 +/- 0.2 1.9 +/- 0.3 1.9 +/- 0.2 1.9 +/- 0.2 2.1 +/- 0.3 01/11/1999 01/18/1999 1.3 +/- 0.2 1.4 +/- 0.2 1.0 +/- 0.2 1.4 +/- 0.2 1.8 +/- 0.3 01/18/1999 01/25/1999 0.9 +/- 0.1 0.8 +/- 0.2 0.9 +/- 0.2 1.2 +/- 0.2 1.2 +/- 0.2 01/25/1999 02/01/1999 1.3 +/- 0.2 1.5 +/- 0.2 1.4 +/- 0.2 1.5 +/- 0.2 1.7 +/- 0.2 02/01/1999 02/08/1999 1.0 +/- 0.2 1.2 +/- 0.2 1.3 +/- 0.2 1.1 +/-0.2 1.7 +/- 0.2 02/08/1999 02/16/1999 1.8 +/- 0.2 1.5 +/- 0.2 1.3 +/- 0.2 1.7 +/- 0.2 1.8 +/- 0.2 2

02/16/1999 02/23/1999 2.0+/-0.2 2.2 +/- 0.2 1.8 +/- 0.2 2.2 +/- 0.2 02/23/1999 03/01/1999 1.1 +/-0.2 1.1 +/-0.2 0.8 +/- 0.2 1.5 +/- 0.2 1.8 +/- 0.3 03/01/1999 03/08/1999 1.1 +/-0.2 1.2 +/- 0.2 1.1 +/-0.2 1.2 +/- 0.2 1.3 +/- 0.2 03/08/1999 03/15/1999 0.6 +/- 0.2 0.8 +/- 0.2 0.7 +/- 0.2 0.8 +/- 0.2 1.2 +/- 0.2 03/15/1999 03/22/1999 0.9+/-0.2 1.0 +/- 0.2 1.2 +/- 0.2 1.0 +/- 0.2 1.6+/-0.2 03/22/1999 03/29/1999 1.0 +/- 0.2 1.2 +/- 0.2 1.3 +/- 0.2 1.1 +/-0.2 1.6 +/- 0.2 03/29/1999 04/05/1999 1.1 +/-0.2 0.9 +/- 0.2 0.9+/-0.2 1.2 +/- 0.2 1.6+/-0.2 04/05/1999 04/1 2/1999 1.2 +1-0.2 1.3+/-0.2 1.1 +/-0.2 1.2 +/- 0.2 1.7+I-0.2 04/12/1999 04/19/1999 1.3+/-0.2 1.6 +/- 0.2 1.5 +/- 0.2 1.3 +/- 0.2 1.6 +/- 0.2 04/19/1999 04/26/1999 1.4 +/- 0.2 1.2 +/- 0.2 1.5 +/- 0.2 1.4 +/- 0.2 1.5 +/- 0.2 04/26/1999 05/03/1999 1.2 +/- 0.2 1.0 +/- 0.2 1.4 +/- 0.2 1.4 +/- 0.2 1.2+1-0.2 05/03/1999 05/10/1999 1.1 +/-0.2 1.0 +/- 0.2 1.3 +/- 0.2 1.1 +/-0.2 1.0+/-0.2 05/10/1999 05/17/1999 1.0 +/- 0.2 0.9 +/- 0.2 1.2 +/- 0.2 1.1 +/-0.2 1.0+/-0.2 05/17/1999 05/24/1999 1.1 +/-0.2 0.8 +/- 0.2 1.4 +/- 0.2 0.9 +/- 0.2 0.9 +/- 0.2 05/24/1999 06/01/1999 1.8 +/- 0.2 1.4+/-0.2 1.6 +/- 0.2 1.9 +/- 0.2 1.7 +/- 0.2 06/01/1999 06/07/1999 1.6 +/- 0.2 1.5+/-0.2 1.6 +/- 0.3 1.0 +/- 0.2 1.6+/-0.2 06/07/1999 06/14/1999 1.0 +/- 0.2 1.0+/-0.2 1.7 +/- 0.3 1.4 +/- 0.2 1.3 +/- 0.2 06/14/1999 06/21/1999 0.9 +/- 0.2 1.0 +/- 0.2 1.2 +/- 0.3 1.0 +/- 0.2 1.1 +/-0.2 06/21/1999 06/2811999 1.3 +/- 0.3 1.1 +/-0.2 1.1 +/-0.3 1.3 +/- 0.2 1.3+/- 0.2 06/28/1999 07/06/1999 1.1 +/-0.2 0.7 +/- 0.2 1.0 +/- 0.2 1.3 +/- 0.2 1.5 +/- 0.2 07/06/1999 07/12/1999 1.3 +/- 0.2 1.1 +/-0.2 1.1 +/-0.3 1.1 +1-0.3 1.6 +/- 0.3 07/12/1999 07/19/1999 1.2 +/- 0.2 1.3+/-0.2 1.3 +/-0.2 1.3 +/- 0.2 1.2 +/- 0.2 07/19/1999 07/26/1999 1.5 +/- 0.2 1.3+/-0.2 1.8 +/- 0.2 2.1 +/-0.2 1.6 +/- 0.2 07/26/1999 08/02/1999 2.0 +/- 0.3 2.5+/-0.3 1.8 +/- 0.3 1.5 +/- 0.2 2.1 +/- 0.2 Control Location 2 Sampler malfunction/low flow 56

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table B-6 Concentration of Beta Emitters in Air Particulates (Results in units of 102 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 08/02/1999 08/09/1999 1.3 +/- 0.2 1.3 +/- 0.2 1.8 +/- 0.2 1.8 +/- 0.2 1.9 +/- 0.3 08/0911999 08/1611999 1.4 +/- 0.2 1.6 +/- 0.2 1.2 +/- 0.2 2.1 +/-0.2 1.9 +/- 0.2 08/16/1999 08/23/1999 1.6 +/- 0.2 1.4 +I- 0.2 1.4 +/- 0.2 1.9 +/- 0.2 1.4 +/- 0.2 08/23/1999 08/3011999 2 1.5 +/- 0.2 1.8 +/- 0.3 1.7 +/- 0.2 2.2 +/- 0.2 08/30/1999 09/07/1999 1.1 +/- 0.2 0.9 +/- 0.1 1.0 +/- 0.2 1.2 +/- 0.2 1.3 +/- 0.2 09/07/1999 09113/1999 1.8+/-0.2 1.7+/-0.2 1.8+/-0.2 2.1 +/-0.3 2.5+/-0.3 09/13/1999 09/20/1999 2 2.7 +/- 0.3 2.5 +/-0.4 2.4 +/- 0.3 1.8 +I- 0.2 09/20/1999 09/27/1999 2.2 +/- 0.2 1.8 +/- 0.2 2.4 +/- 0.3 2.4 +/-0.2 2.2 +/- 0.2 09/27/1999 10/04/1999 2.1 +/- 0.2 1.5 +/- 0.2 2.6 +/- 0.2 2.9 +/- 0.3 2.8 +/- 0.2 10/04/1999 10/11/1999 2.0 +/- 0.2 1.5 +/- 0.2 1.5 +/- 0.2 1.8 +/- 0.3 1.9 +/- 0.2 10/11/1999 10/18/1999 1.1 +/-0.2 1.2+/-0.2 1.3+/-0.2 1.3+/-0.2 1.5+/-0.2 10/18/1999 10/25/1999 1.4 +/- 0.2 1.5 +/- 0.2 1.2+/- 0.2 1.6 +/- 0.2 1.6 +/- 0.2 10/25/1999 11/01/1999 2.5 +/- 0.2 2.8 +/- 0.3 2.2 +/- 0.2 2.5 +t-0.2 2.4 +/- 0.2 11/01/1999 11/0811999 2.4 +/-0.3 1.8 +/- 0.2 1.9 +/- 0.2 2.4 +/-0.2 2.5 +/- 0.3 11/08/1999 11/15/1999 3.9+/-0.3 3.3+/-0.2 3.1 +/-0.2 3.2+/-0.3 3.9+/-0.3 11/15/1999 11/22/1999 1.2+1-0.2 1.3+/-0.2 1.2+1-0.2 1.2+/-0.2 1.3+/-0.2 11/22/1999 11/29/1999 1.4+/-0.2 1.2+/-0.2 1.2+/-0.2 1.1 +/-0.2 1.4+/-0.2 11/29/1999 12/06/1999 2.1 +/-0.3 2.0 +/- 0.2 1.6 +/- 0.2 1.9 +/- 0.2 2.0 +/- 0.2 12/06/1999 12/13/1999 2.1 +/-0.2 1.7 +/- 0.2 1.4 +/- 0.2 1.8 +/- 0.2 1.5 +/- 0.2 12/13/1999 12/20/1999 1.7 +/- 0.2 1.6 +/-0.2 1.3 +/- 0.2 1.7 +/-0.2 1.7 +1- 0.2 12/20/1999 12/28/1999 2.6 +1-0.2 2.0 +/- 0.2 1.9 +/- 0.2 2.0 +/-0.2 2.0 +1-0.2 12/28/1999 01/03/2000 3.0 +/- 0.3 2.5 +/- 0.3 2.7 +/- 0.2 2.7 +/- 0.3 2.8 +/- 0.3

'Control location 2 Sampler malfunction/low flow 57

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table B-6 Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/m 3 +/- 2a)

Start Date Stop Date SFA1 SFA2 1 SFA3 SFA4 MET Station Visitors Center NNW of ISFSI South of ISFSI 12/28/1998 01/04/1999 2.1 +/- 0.3 1.7 +/- 0.3 1.8 +/- 0.2 2.1 +/-0.2 01/04/1999 01/11/1999 3.1 +/-0.4 2.4 +/- 0.3 2.5 +/- 0.3 2.1 +/-0.2 01/11/1999 01/18/1999 2.3 +/- 0.3 1.2 +/-0.2 1.7 +/- 0.2 1.7 +/- 0.2 01/18/1999 01/25/1999 1.7 +/- 0.3 1.0 +/- 0.2 1.4 +/- 0.2 1.1 +/-0.2 01/25/1999 02/01/1999 2.4 +/- 0.3 1.6 +/-0.2 1.8 +/- 0.2 1.5 +/- 0.2 02/01/1999 02/08/1999 1.3 +/- 0.2 1.2 +/-0.2 1.5 +/- 0.2 1.4 +/- 0.2 02/08/1999 02/16/1999 1.4 +/- 0.2 1.5 +/- 0.2 2.0 +/- 0.2 1.5 +/- 0.2 02/16/1999 02/23/1999 1.9 +1- 0.2 2.0 +/-0.2 2.0 +/- 0.2 2.0+/-0.2 02/23/1999 03/01/1999 1.3 +/- 0.3 1.2 +/- 0.2 1.5 +/- 0.2 0.9 +/- 0.2 03/01/1999 03/08/1999 1.1 +/-0.2 1.2 +/- 0.2 1.4 +/- 0.2 1.3 +/- 0.2 03/08/1999 03/15/1999 0.7 +/- 0.2 0.7 +/- 0.2 0.8 +/- 0.3 0.8 +/- 0.2 03/15/1999 03/22/1999 1.0 +/- 0.1 0.9 +1- 0.2 1.3 +/- 0.2 1.0 +/- 0.2 03/22/1999 03/29/1999 1.4 +/- 0.2 1.5 +1- 0.2 1.7 +/- 0.3 1.4 +/- 0.2 03/29/1999 04/05/1999 0.9 +/- 0.2 1.0 +/- 0.2 1.4 +/- 0.2 1.2 +/- 0.2 04/05/1999 04/12/1999 1.2 +/- 0.2 1.2 +/- 0.2 1.6 +/- 0.2 1.4 +/- 0.2 04/12/1999 04/19/1999 1.4 +/- 0.2 1.3 +/- 0.2 1.6 +/- 0.2 1.6 +/- 0.2 2

04/19/1999 04/26/1999 1.3 +/- 0.2 1.6 +/- 0.2 1.5 +/-0.2 04/26/1999 05/03/1999 1.2 +/- 0.2 1.4 +/- 0.2 1.1 +/-0.2 1.2 +/-0.2 05/03/1999 05/10/1999 1.1 +/-0.2 1.1 +/-0.2 1.0 +/-0.2 1.1 +/-0.2 05/10/1999 05/17/1999 1.1 +/-0.2 1.1 +/-0.2 1.0 +/- 0.2 1.0 +/- 0.2 05/17/1999 05/24/1999 0.9 +/- 0.2 0.9 +/- 0.2 1.1 +/-0.2 1.0 +/- 0.2 05/24/1999 06/01/1999 1.9 +/- 0.2 1.9 +/- 0.2 2.0 +/- 0.2 2.0 +/- 0.2 06/01/1999 06/07/1999 1.7 +/- 0.3 1.6 +1-0.3 1.6 +/-0.2 1.3 +/- 0.2 06/07/1999 06/14/1999 1.3 +/- 0.2 1.3 +/- 0.2 1.5 +/-0.2 1.4 +/-0.2 06/14/1999 06/21/1999 1.0 +/- 0.2 0.8 +1- 0.2 1.1 +/-0.2 0.7 +/- 0.2 06/21/1999 06/28/1999 1.6 +/- 0.3 1.3 +1- 0.3 1.5 +/- 0.3 1.3 +/- 0.3 06/28/1999 07/06/1999 1.5 +/- 0.2 1.4 +/1 0.2 1.6 +/- 0.2 1.3 +/- 0.2 07/06/1999 07/12/1999 1.9 +/- 0.3 1.9 +1- 0.3 1.8 +/- 0.3 1.5 +/- 0.3 07/12/1999 07/19/1999 1.5 +/- 0.2 1.4 +1- 0.2 1.3 +/- 0.2 1.0 +/-0.2 07/19/1999 07/26/1999 1.6 +f- 0.2 2.1 +1-0.2 2.1 +/-0.2 1.5 +/- 0.2 07/26/1999 08/02/1999 2.8 +/- 0.3 2.4 +/- 0.3 2.3 +/- 0.3 2.0 +/- 0.2 08/02/1999 08/09/1999 2.0 +/- 0.3 1.9 +/- 0.2 1.9 +/- 0.2 1.3 +/- 0.2 08/09/1999 08/16/1999 1.5 +/- 0.2 2.2 +/-0.2 2.1 +/- 0.2 1.6 +/- 0.2 08/16/1999 08/23/1999 1.5 +/- 0.3 1.7 +1- 0.2 1.8 +/- 0.2 1.3 +/- 0.2 08/23/1999 08/30/1999 2.3 +/- 0.3 2.2 +1- 0.3 2.5 +/- 0.3 1.9 +/- 0.2 Control location 2 Sampler malfunction/low flow 58

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table B-6 Concentration of Beta Emitters in Air Particulates (Results in units of 10.2 pCi/m3 +/- 2a)

Start Date Stop Date SFAI SFA21 SFA3 SFA4 MET Station Visitors Center NNW of ISFSI South of ISFSI 08/30/1999 09/07/1999 1.5+/-0.2 1.3+/-0.2 1.2+/-0.2 1.1 +/-0.1 09/07/1999 09/13/1999 2.5 +/- 0.3 2.4 +/- 0.3 2.3 +/- 0.2 2.1 +/-0.2 09/13/1999 09/20/1999 1.8 +/- 0.2 2.4 +/-0.3 2.2 +1-0.3 2.2 +/-0.2 09/20/1999 09/27/1999 2.5 +/-0.2 2.3 +/-0.3 2.5 +/-0.3 2.1 +/-0.2 09/27/1999 10104/1999 2.7 +/- 0.2 2.8 +/- 0.2 2.7 +/- 0.3 2.2 +/-0.2 1010411999 10/11/1999 1.9+/-0.2 1.8+/-0.2 1.8+/-0.2 1.3+/-0.1 10/1111999 10/18/1999 1.4+/-0.2 1.3+/-0.2 1.2+/-0.2 1.4+/-0.2 10/18/1999 10/25/1999 1.5 +/- 0.2 1.4 +/- 0.2 1.9 +/- 0.2 1.4 +/-0.2 10/25/1999 11/01/1999 2.5 +/- 0.2 2.6 +/- 0.3 2.8 +1-0.3 2.8 +/- 0.2 11/01/1999 11/08/1999 2.5 +/- 0.2 2.2 +/-0.2 2.6 +/- 0.3 2.9 +/- 0.3 11/08/1999 11/15/1999 4.0 +/- 0.3 3.4 +/- 0.3 3.6 +/- 0.3 4.2 +/- 0.3 11/15/1999 11/22/1999 1.3+/-0.2 1.4+/-0.2 1.2+/-0.2 1.8+/-0.3 11/22/1999 11/2911999 1.4 +/- 0.2 1.3 +/- 0.2 1.4 +/- 0.2 2 11/29/1999 12/06/1999 2.0 +/- 0.2 1.9 +/- 0.2 2.0 +/- 0.2 2.3 +/- 0.2 12/06/1999 12/13/1999 1.8 +/- 0.3 1.8 +/- 0.2 1.7 +/- 0.2 1.6 +/- 0.2 12/13/1999 12/20/1999 2.1 +/-0.3 1.6 +/-0.2 1.5 +/-0.2 1.6 +/-0.2 12/20/1999 12/28/1999 2.5 +/- 0.2 2.4 +/- 0.2 2.0 +/- 0.2 2.9 +/- 0.3 12/28/1999 01/03/2000 3.2 +/- 0.3 3.0 +/- 0.3 2.8 +/- 0.2 3.2 +/- 0.3

'Control location 2 Sampler malfunction/low flow 59

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table B-7 Concentration of Gamma Emitters in Air Particulates (Results in units of 10-3 pCi/m 3 +/- 2a)

Sample Date Al A2 A3 A4 A51 Entrance to Camp Camp Conoy Siren Bay Breeze Rd Route 765 at EOF Conoy Lusby 01/15/1999 .....

02/15/1999 .....

03/15/1999 .....

04/15/1999 .....

05/15/1999 .....

06/15/1999 .....

07/15/1999 .....

08/15/1999 .....

09/15/1999 .....

10/15/1999 .....

11/15/1999 .....

12/15/1999 .....

Sample Date SFA1 SFA2' SFA3 SFA4 MET Station Visitors Center NNW of ISFSI South of ISFSI 01/15/1999 ....

02/15/1999 ....

03/15/1999 ....

04/15/1999 ....

05/15/1999 ....

06/15/1999 ....

07/15/1999 ....

08/15/1999 ....

09/15/1999 ....

10/15/1999 ....

11/15/1999 ....

12/15/1999 * * * *

"Non-NaturalGamma Emitters < MDA

'Control Location 60

January 1 - December 31, 1999 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 06/28/1999 Collards

Bay Breeze Rd 07126/1999 Collards

08/30/1999 Collards

09/27/1999 Collards

10/25/1999 Collards Ib2 06/2811999 Cabbage Bay Breeze Rd 07/26/1999 Cabbage 08/30/1999 Cabbage 09/27/1999 Cabbage

10/25/1999 Cabbage

Ib3 06/28/1999 Cauliflower

Bay Breeze Rd 07/26/1999 Cauliflower

08/30/1999 Cauliflower

09/27/1999 Broccoli

10/25/1999 Brussels sprouts

1b4 06/28/1999 Collards

Camp Conoy Entrance 07/26/1999 Collards

08/30/1999 Collards

09/27/1999 Collards

10/25/1999 Collards

Ib5 06/28/1999 Cabbage

Camp Conoy Entrance 07/26/1999 Cabbage

08/30/1999 Cabbage 09/27/1999 Cabbage 10/25/1999 Cabbage

Ib6 06/28/1999 Cauliflower

Camp Conoy Entrance 07/2611999 Cauliflower

08/30/1999 Cauliflower

09/27/1999 Broccoli

10/25/1999 Brussels sprouts

Ib71 06/28/1999 Collards

EOF 07/26/1999 Collards

08/30/1999 Collards

09/27/1999 Collards

10/25/1999 Collards

Non-Natural Gamma Emitters < MDA

'Control Location 61

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table B-8a Concentration of Gamma Emitters in Vegetation Samples (Results in units of pCi/kg (wet) +/- 2c)

Sample Code Sample Date Sample Type Gamma Emitters Ib81 06/28/1999 Cabbage

EOF 07/26/1999 Cabbage

08/30/1999 Cabbage

09/27/1999 Cabbage

10/25/1999 Cabbage

lb9 1 06/28/1999 Cauliflower

EOF 07/26/1999 Cauliflower

08/30/1999 Cauliflower

09/27/1999 Broccoli

10/25/1999 Brussels sprouts

Non-Natural Gamma Emitters < MDA Control Location 62

January 1 - December 31, 1999 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) +/- 2a)

Sample Code Sample Date Gamma Emitters SFbl 02/16/1999

MET Station 06/14/1999

09/13/1999

11/08/1999

SFb2 1 02/16/1999

Visitor's Center 06/14/1999

09/13/1999

11/08/1999

SFb3 02/16/1999

NNW of ISFSI 06/14/1999

09/13/1999

11/08/1999

SFb4 02/16/1999

South of ISFSI 06/14/1999

09/13/1999

11/08/1999

SFb5 02/16/1999

On Site before Entrance 06/14/1999

to Camp Conoy 09/13/1999

11/08/1999 *

"Non-Natural Gamma Emitters < MDA SControl Location 63

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table B-9 Concentration of Gamma Emitters in Soil Samples From Locations Around the ISFSI (Results in units of pCi/kg (dry) +/- 2u)

Sample Code Sample Date Cs-1 37 Gamma Emitters SFS1 02/16/1999 1 .

MET station 06/14/1999

09/13/1999 I .

11/08/1999 .

SFS2 2 02/16/1999 103 +/-45

Visitors Center 06/14/1999 107 +1-36

09/13/1999 99+1-37

11/08/1999 229 +/-63

SFS3 02/16/1999 787 +/-99

NNW of ISFSI 06/14/1999 655 +/-74

09/13/1999 718+/-91

11/08/1999 920 +/-86

SFS4 02/16/1999 48 +/-49 South of ISFS1 06/14/1999 38+/-42

09/13/1999 .

11/08/1999 I .

SFS5 02/16/1999 419 +/-56

Entrance to Camp 06/14/1999 205 +/-39

Conoy 09/13/1999 700 +1-69

11/08/1999 720+/-83 *

. Non-Natural Gamma Emitters < MDA

'This Isotope < MDA 2 Control Location 64

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE B-10 Typical MDA Ranges for Gamma Spectrometry Selected Fish Shellfish Shoreline Vegetation Selected Bay Water Fish Shellfish Shoreline Vegetation Soil Particulates Nuclides pCi/I pCi/kg pCi/kg pCi/kg pCi/kg pCi/kg 10- 3 pCi/m 3 Na-22 1.8-4.0 22- 34 11-36 18-56 18-51 19-98 1.2-7.7 Cr-51 13-35 110 - 155 81-269 106-252 97-194 117-634 13-98 Mn-54 1.6-3.2 13 -22 10-30 16-49 15-36 17-106 1.2-9.2 Co-58 1.5-3.5 17-24 10-33 15-43 14-35 16-94 1.4-9.7 Fe-59 3.6-9.4 47 -69 27-76 31- 90 31-88 12-203 3.6-24.9 Co-60 1.7-3.6 18 -28 11-33 17-44 18-45 19-114 1.1 -7.3 Zn-65 3.2-8.0 23-51 24-69 43-134 34- 92 47-256 2.2- 16.7 Nb-95 1.7-4.3 19-28 12-40 20-49 15-34 19-109 1.9-13.7 Zr-95 2.8-6.0 29-41 22-59 28-78 27-58 27-180 2.5-15.8 Ru-1 06 13 -26 116-177 74-254 123-384 117-284 127-851 8.0-56.4 Ag-11Orn 1.5-2.8 14-18 9-27 14-39 12-33 16-121 0.9-16.6 Te-129m 20 -49 175-280 123-425 174-422 142-345 203-1160 2.2-133 1-131 2 -23 28 - 84 18-117 14-34 14-38 21-137 Cs-1 34 1.8-2.6 12-16 10-25 19-52 16-36 19-88 1.2-8.6 Cs-I 37 1.5-2.7 13-18 8-27 16-43 14-35 12-99 0.9-6.0 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

The MDA range for 1-131 measured on silver zeolite cartridge is typically 2.5 x 10-3 to 9.7 x 10-3 pCi/m 3 .

65

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE B-11 Typical LLDs for Gamma Spectrometry Selected Bay Water Fish Shellfish Sediment Particulate Precipitation Vegetation Soil Well Water Nuclides pCi/I pCi/kg pCi/kg pCi/kg 10" 3 pCi/m 3 pCi/I pCi/Kg pCi/Kg 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-1I0m 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

The LLD for 1-131 measured on silver zeolite cartridge is 7.9x 10-3 pCi/m 3 for Nal I Detector and 5.3 x 10-3 pCi/m 3 for Na12 Detector 66

January 1 - December 31, 1999 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 DR01 On Site, along Cliffs 12.91 +/- 1.52 14.40 +/- 0.96 12.98 +/- 1.70 13.44 +/- 1.53 DR02 Route 765, Auto Dump 10.59 +/- 1.13 10.69 +/- 1.47 10.39 +/- 1.45 1 DR03 Route 765, Giovanni's Tavern 11.04 +/- 0.92 11.02 +/- 2.01 10.78 +/- 1.39 10.64 +/- 0.99 DR04 Route 765, across from White Sands Drive. 12.10 +/- 1.20 13.44 +/- 0.96 11.74 +/- 0.94 12.23 +/- 1.08 DR05 Route 765, St. John's Creek 11.67 +/- 0.89 12.27 +/- 1.55 11.61 +/- 0.98 11.84 +/- 0.83 DR06 Route 765 at Lusby 10.11 +/- 1.70 10.87+/- 1.05 9.91 +/- 1.36 10.26+/- 0.82 DR07 Entrance to Camp Conoy 10.23 +/- 0.96 10.44 +/- 0.77 9.91 +/- 1.51 9.94 +/- 0.95 DR08 Camp Conoy Rd at Emergency Siren 15.36 +/- 1.36 15.83 +/- 2.66 15.18 +/- 1.85 14.32 +/- 1.21 DR09 Bay Breeze Rd 11.15 +/- 1.42 12.25 +/- 1.08 10.45 +/- 2.46 10.98 +/- 0.95 DR10 Decatur St. and Calvert Beach Rd. 10.84 +/- 0.96 10.90 +/- 1.09 10.73 +/- 1.34 9.79 +/- 0.23 DR1 1 Dirt road off Mackall & Parran Rd 10.74 +/- 0.90 10.48 +/- 1.47 11.01 +/- 0.45 10.98 +/- 1.29 DR12 Mackall & Bowen Rds 10.49 +/- 0.59 9.77 +/- 1.10 10.53 +/- 1.06 9.98 +/- 1.22 DR13 Mackall Rd, near Wallville 10.97 +1- 1.70 10.59 +/- 1.22 10.97 +/- 1.11 11.13 +/- 0.69 DR14 Rodney Point 12.84 +/- 0.13 12.35 +/- 0.89 13.32 +/- 0.66 12.93 +/- 0.35 DR15 Mill Bridge & Turner Rds 11.90+/- 0.53 11.48+/- 0.48 11.70+1- 0.74 12.13+1- 0.39

'Missing Data 67

January 1 - December 31, 1999 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 DR16 Across from Appeal School 10.31 +/- 0.71 10.52+1- 0.96 10.73+/- 1.90 11.14+/- 1.27 DR17 Cove Point & Little Cove Point Rds 11.44+/- 1.17 11.71 +/- 1.31 12.31 +/- 1.33 12.64+/- 1.10 DR18 Cove Point 9.13 +/- 0.66 8.96 +/- 0.67 9.10 +/- 1.01 9.63 +/- 0.34 DR19 Long Beach 10.25 +/- 1.38 10.05 +/- 0.79 10.36 +/- 0.95 10.24 +/- 0.74 DR20 On site, near Shore 12.95 +/- 1.70 12.85 +1- 1.91 13.68 +/- 1.68 13.47 +/- 1.72 DR21 EOF 12.26+/- 1.80 11.78+/- 0.86 12.17+/- 1.82 12.20+/- 0.97 DR221 Solomons Island 9.07 +/- 0.58 9.76 +/- 0.62 10.08 +/- 1.72 2 DR23' Taylors Island 15.16 +/- 1.65 14.72 +/- 1.89 16.32+/- 2.08 15.14 +/- 1.68 DR30 MET Station 12.22 +/- 1.28 12.05 +/- 1.15 12.31 +/- 0.89 13.42 +/- 2.45 SFDR01 Collocated w/Plant TLD #159 15.51 +/- 0.89 14.77 +/- 1.66 15.72 +/- 1.00 17.22 +/- 0.92 SFDR02 Collocated w/plant TLD # 160 19.14+/- 1.71 18.31 +/- 3.78 18.32+/- 2.19 19.23+/- 1.11 SFDR03 Collocated w/ plant TLD #161 22.75 +/- 3.52 24.44 +/- 3.40 27.53 +/- 1.76 25.56 +/- 2.38 SFDR04 Collocated w/ plant TLD #162 16.17 +/- 1.74 18.74 +/- 1.96 16.35 +/- 1.49 18.41 +/- 3.16 SFDR05 Collocated w/ plant TLD #163 13.41 +/- 1.71 13.03 +/- 0.85 12.92 +/- 0.78 12.81 +/- 0.64 SFDR06 Collocated w/plant TLD #164 13.86 +/- 0.92 15.16 +/- 1.66 14.69 +/- 0.85 14.38 +/- 1.30 SControl Location 2 Missing Data 68

January 1 - December 31, 1999 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 SFDR07 1 Visitor's Center 12.55 +/- 1.17 15.32 +/- 0.43 13.38+/- 1.16 12.55 +/- 0.82 SFDR08 NNW of ISFSI 24.65 +/- 4.48 22.50 +/- 2.87 21.79 +/- 3.25 28.74 +/- 1.51 SFDR09 South of ISFSI 11.77 +/- 0.86 11.44 +/- 0.98 11.05+/- 1.32 11.70 +/- 0.91 SFDR10 NNWof ISFSI 36.24 +/- 8.63 41.01 +/- 4.50 38.89 +/- 3.83 42.99 +/- 4.35 SFDR11 WNW ISFSI 24.22 +/- 4.55 23.85 +/- 2.98 22.10+/- 4.42 24.31 +/- 3.15 SFDR12 W of ISFSI 20.77 +/- 3.52 20.94 +/- 4.48 21.54 +/- 3.21 28.18 +/- 3.57 SFDR13 SSW of ISFSI 12.69+/- 1.19 12.63+/- 1.59 13.62+/- 1.07 13.74+/- 1.70 SFDR14 SSE of ISFSI 11.45 +/- 1.27 11.42 +/- 1.02 10.94 +/- 1.11 12.07 +/- 0.72 SFDR15 ENE of ISFSI 15.36 +/- 1.83 14.85 +/- 1.00 14.50 +/- 1.91 15.68 +/- 2.01 SFDR16 WSWof ISFSI 20.69 +/- 1.95 21.29 +/- 1.98 18.49 +/- 0.55 21.18 +/- 4.47 Location SControl 69

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 70

January 1 - December 31, 1999 Docket Nos. 50-317/318 APPENDIX C Appendix C is a summary of BGE laboratory's quality assurance program. It consists of Table C-I 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, 1999 to December 31, 1999. 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 43.

All the BGE results contained in Table C-I agree with Analytics results with the exception of two isotopes for the filter sample type on 6/24/99 and tritium for 9/23/99. Reanalysis of the filter did not result in agreement within the 3 sigma control limit, however, the original results are in agreement when using the NRC Resolution Test Criteria'. Reanalysis of the Analytics tritium cross check sample gave a result of 4194 +/- 150 pCi/l which was within the 3 sigma acceptability criteria.

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.

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

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 72

January 1 -December 31, 1999 Docket Nos. 50-317/318 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page C-I Results of Participation in Analytics Cross Check Program .............................................. 75 C-2 Results of Quality Assurance Program for 1999 ................................................................ 77 C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry ........................ 86 73

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 74

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE C-1 Results of Participation in Analytics Cross Check Program for 1999 Sample Sample Type Isotope Reported Analytics Date and Units Observed Laboratory' Results' Results1 3/18/99 Water-pCi/L H-3 2552+/-90 2698+/-135 3/18/99 Water-pCiVL Cs-1 34 93+/-20 114+/-6 Cs-137 231+/-38 240+/-12 Ce-141 185+/-38 177+/-9 Zn-65 209+/-62 195+/-10 Cr-51 412+/-210 398+/-20 Mn-54 164+/-34 152+/-8 Fe-59 84+/-38 79+/-4 Co-60 184+/-17 181+/-9 1-131 88+/-28 91+/-5 6/24/99 Water-pCi/L 1-131 48+/-42 68+/-3 Ce-141 134+/-39 134+/-7 Cr-51 162+/-192 172+/-9 Cs-1 34 77+/-15 92+/-5 Cs-1 37 145+/-27 151+/-8 Mn-54 66+/-20 68+/-3 Fe-59 34+/-38 38+/-2 Zn-65 105+/-44 98+/-5 Co-60 184+/-22 171+/-9 6/24/99 Filter-pCi/filter Beta 35+/-2 41+/-2 2

6/24/99 Filter-pCi/filter Ce-141 178+/-14 150+/-8 Cr-51 231+/-81 192+/-10 Cs-1 34 99+/-6 103+/-5 Cs-1 37 186+/-14 168+/-8 Mn-54 88+/-11 76+/-4 Fe-59 55+/-14 43+/-2 Zn-65 130+/-21 109+/-5 Co-602 218+/-11 191+/-10

'Laboratory precision (3 sigma) 2 See discussion at the beginning of this Appendix 75

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE C Continued Results of Participation in Analytics Cross Check Program for 1999 Sample Sample Type Isotope Reported Analytics Date and Units Observed Laboratory's Results' Results 1 9/23/99 Water-pCi/L H-3 2 3912+/-99 4534+/-227 9/23/99 Water-pCi/L Cs-1 34 112+/-21 119+/-6 Cs-1 37 259+/-38 268+/-13 Ce-141 251+/-34 244+/-12 Zn-65 207+/-63 202+/-10 Cr-51 177+/-135 184+/-9 Mn-54 223+/-38 210+/-11 Fe-59 96+/-34 94+/-5 Co-60 165+/-26 159+/-8 1-131 77+/-27 77+/-4 12/09/99 Water-pCi/L Cs-1 34 111+/-18 125+/-6 Cs-1 37 90+/-26 96+/-5 Ce-141 101+/-33 105+/-5 Zn-65 193+/-62 186+/-9 Cr-51 301+/-172 290+/-15 Mn-54 105+/-27 100+/-5 Fe-59 99+/-38 94+/-5 Co-60 144+/-24 132+/-7 1-131 110+/-50 96+/-5 Co-58 112+/-32 110+/-6

'Laboratory precision (3 sigma) 2 See discussion at the beginning of this Appendix 76

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE C-2 Results of Quality Assurance Program for 1999 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 10.2 pCi/m 3 Air Iodine-Al 1/11/99 1-131 <0.3 <0.3 Air Iodine-A2 1/11/99 1-131 <0.6 <0.6 Air Filter -Al 1/18/99 Beta 1.3+/-0.2 1.2+/-0.2 Air Filter -A2 1118/99 Beta 1.4+/-0.2 1.0+/-0.2 Air Filter -A3 1/18/99 Beta 1.0+/-0.2 1.3+/-0.2 Air Filter -A4 1/18/99 Beta 1.4+/-0.2 1.3+/-0.2 **

Air Filter -A5 1/18/99 Beta 1.8+/-0.2 2.0+/-0.3 **

Air Filter -SFA1 1/18/99 Beta 2.2+/-0.3 2.2+/-0.3 Air Filter -SFA2 1/18/99 Beta 1.2+/-0.2 1.2+/-0.2 **

Air Filter -SFA3 1/18/99 Beta 1.7+/-0.2 1.8+/-0.2 Air Filter -SFA4 1/18/99 Beta 1.7+/-0.2 1.7+/-0.2 **

pCi/L Bay Water-Wa2 1/15/99 Gamma <MDA <MDA <MDA Bay Water-Wa2 2/15/99 Tritium 103+/-40 157+/-41 300+/-110 10-2 pCi/m 3 Air Filter-Al 2/8/99 Beta 1.0+/-0.2 1.0+/-0.2 Air Filter-A2 2/8/99 Beta 1.2+/-0.2 1.3+/-0.2 Air Filter-A3 2/8/99 Beta 1.3+/-0.2 1.2+/-0.2 Air Filter-A4 2/8/99 Beta 1.1+/-0.2 1.2+/-0.2 Air Filter-A5 2/8/99 Beta 1.7+/-0.2 1.8+/-0.2 Air Filter-SFA1 2/8/99 Beta 1.3+/-0.2 1.4+/-0.2 Air Filter-SFA2 2/8/99 Beta 1.2+/-0.2 1.3+/-0.2 Air Filter-SFA3 2/8/99 Beta 1.5+/-0.2 1.6+/-0.2 Air Filter-SFA4 2/8/99 Beta 1.4+/-0.2 1.6+/-0.2 Air Iodine-A3 2/8/99 1-131 <0.2 <0.2 Air Iodine-A4 2/8/99 1-131 <0.4 <0.4

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

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

77

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1999 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis pCi/kg Soil-SFS1 2/16/99 Gamma <MDA <MDA <MDA Soil-SFS2 2/16/99 Cs-1 37 103+/-44 164+/-44 169+/-26 Vegetation-SFb2 2/16/99 Gamma <MDA <MDA <MDA Vegetation-SFb3 2/16/99 Gamma <MDA <MDA <MDA 3

10-2 pCi/m Air Filter-Al 3/8/99 Beta 1.1+/-0.2 1.1+/-0.2 **

Air Filter-A2 3/8/99 Beta 1.2+/-0.2 1.3+/-0.2 Air Filter-A3 3/8/99 Beta 1.1+/-0.2 1.1+/-0.2 Air Filter-A4 3/8/99 Beta 1.2+/-0.2 1.2+/-0.2 Air Filter-A5 3/8/99 Beta 1.3+/-0.2 1.4+/-0.2 Air Filter-SFA1 3/8/99 Beta 1.2+/-0.2 1.1+/-0.2 Air Filter-SFA2 3/8/99 Beta 1.2+/-0.2 1.3+/-0.2 Air Filter-SFA3 3/8/99 Beta 1.4+/-0.2 1.3+/-0.2 Air Filter-SFA4 3/8/99 Beta 1.3+/-0.2 1.3+/-0.2 Air Iodine-A2 3/8/99 1-131 <0.3 <0.3 Air Iodine-A3 3/8199 1-131 <0.4 <0.4 pCi/kg Oysters-la3 3/25/99 Ag-1 1Om 35+/-8 40+/-9 <30

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

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

78

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1999 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 10.2 pCi/m 3 Air Filter-Al 4/12/99 Beta 1.2+/-0.2 1.1+/-0.2 **

Air Filter-A2 4/12/99 Beta 1.3+/-0.2 1.3+/-0.2 **

Air Filter-A3 4/12/99 Beta 1.1+/-0.2 1.0+/-0.2 **

Air Filter-A4 4/12/99 Beta 1.2+/-0.2 1.3+/-0.2 **

Air Filter-A5 4112/99 Beta 1.7+/-0.2 1.6+/-0.2 **

Air Filter-SFA1 4/12/99 Beta 1.2+/-0.2 1.0+/-0.2 **

Air Filter-SFA2 4/12/99 Beta 1.2+/-0.2 1.1+/-0.2 **

Air Filter-SFA3 4/12/99 Beta 1.6+/-0.2 1.6+/-0.2 **

Air Filter-SFA4 4112/99 Beta 1.4+/-0.2 1.4+/-0.2 **

Air Iodine-A4 4/12/99 1-131 <0.3 <0.3 **

Air Iodine-A5 4/12/99 1-131 <0.4 <0.4 **

pCi/L Bay Water-Wa2 4/15/99 Gamma <MDA <MDA <MDA 10.2 pCi/m3 Air Filter-Al 5/10/99 Beta 1.1+/-0.2 1.0+/-0.2 **

Air Filter-A2 5/10/99 Beta 1.0+/-0.2 1.0+/-0.2 **

Air Filter-A3 5/10/99 Beta 1.3+/-0.2 1.2+/-0.2 **

Air Filter-A4 5/10/99 Beta 1.1+/-0.2 1.2+/-0.2 **

Air Filter-A5 5/10/99 Beta 1.0+/-0.2 1.0+/-0.2 **

Air Filter-SFA1 5/10/99 Beta 1.1+/-0.2 1.2+/-0.2 **

Air Filter-SFA2 5/10/99 Beta 1.1+/-0.2 1.1+/-0.2 **

Air Filter-SFA3 5/10/99 Beta 1.0+/-0.2 1.0+/-0.2 **

Air Filter-SFA4 5/10/99 Beta 1.1+/-0.2 1.2+/-0.2 **

Air Iodine-Al 5/10/99 1-131 <0.3 <0.3 **

Air Iodine-A4 5/10/99 1-131 <0.6 <0.6 **

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

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

79

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1999 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis pCi/kg Shoreline-Wbl 5/26/99 Gamma <MDA <MDA <MDA Soil-SFS1 6/14/99 Cs-1 37 <49 <48 29+/-15 Soil-SFS5 6/14/99 Cs-1 37 205+/-38 190+/-41 161+/-19 Vegetation-SFbl 6/14/99 Gamma <MDA <MDA <MDA Vegetation-SFb2 6/14/99 Gamma <MDA <MDA <MDA 3

10-2 pCi/m Air Filter-Al 6/7/99 Beta 1.6+/-0.2 1.5+/-0.2 **

Air Filter-A2 6/7/99 Beta 1.5+/-0.2 1.3+/-0.2 **

Air Filter-A3 6/7/99 Beta 1.6+/-0.3 1.4+/-0.3 **

Air Filter-A4 6/7/99 Beta 1.0+/-0.2 1.1+/-0.2 **

Air Filter-A5 6/7/99 Beta 1.6+/-0.2 1.5+/-0.2 **

Air Filter-SFA1 6/7/99 Beta 1.7+/-0.2 1.5+/-0.2 **

Air Filter-SFA2 6/7/99 Beta 1.6+/-0.2 1.7+/-0.2 **

Air Filter-SFA3 6/7/99 Beta 1.6+/-0.2 1.5+/-0.2 **

Air Filter-SFA4 6/7/99 Beta 1.3+/-0.2 1.3+/-0.2 **

Air Iodine-A2 6/7/99 1-131 <0.4 <0.4 Air Iodine-A3 6/7/99 1-131 <0.8 <0.8 **

3 10-3 pCi/m Air Filters-Al 6/15/99 Gamma <MDA <MDA <MDA Air Filters-A2 6/15/99 Gamma <MDA <MDA <MDA Air Filters-A3 6/15/99 Gamma <MDA <MDA <MDA Air Filters-A4 6/15/99 Gamma <MDA <MDA <MDA Air Filters-A5 6/15/99 Gamma <MDA <MDA <MDA Air Filters-SFA1 6/15/99 Gamma <MDA <MDA <MDA Air Filters-SFA2 6/15/99 Gamma <MDA <MDA <MDA Air Filters-SFA3 6/15/99 Gamma <MDA <MDA <MDA Air Filters-SFA4 6/15/99 Gamma <MDA <MDA <MDA

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

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

80

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1999 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 10-2 pCi/m 3 Air Filter-Al 7/12/99 Beta 1.3+/-0.2 1.4+/-0.2 **

Air Filter-A2 7/12/99 Beta 1.1+/-0.2 1.2+/-0.2 **

Air Filter-A3 7/12/99 Beta 1.1+/-0.3 1.9+/-0.3 Air Filter-A4 7/12/99 Beta 1.1+/-0.3 1.2+/-0.3 Air Filter-A5 7/12/99 Beta 1.6+/-0.2 1.7+/-0.2 **

Air Filter-SFA1 7/12/99 Beta 1.9+/-0.3 2.1+/-0.3 Air Filter-SFA2 7/12/99 Beta 1.9+/-0.3 1.9+/-0.3 **

Air Filter-SFA3 7/12/99 Beta 1.8+/-0.3 1.8+/-0.3 **

Air Filter-SFA4 7/12/99 Beta 1.5+/-0.3 1.5+/-0.2 Air Iodine-Al 7/12/99 1-131 <0.4 <0.4 **

Air Iodine-A2 7/12/99 1-131 <0.5 <0.5 **

pCi/L Bay Water-Wal 7/15/99 Gamma <MDA <MDA <MDA pCi/kg Fish-lal 8/3/99 Gamma <MDA <MDA <MDA Oysters-lal0 8/3/99 Ag-110 14+/-8 <17 <30 3

10-2 pCi/m Air Filter-Al 8/9/99 Beta 1.3+/-0.2 1.4+/-0.2 Air Filter-A2 8/9/99 Beta 1.3+/-0.2 1.3+/-0.2 Air Filter-A3 819/99 Beta 1.8+/-0.2 1.9+/-0.2 Air Filter-A4 8/9/99 Beta 1.8+/-0.2 1.8+/-0.2 Air Filter-A5 8/9/99 Beta 2.0+/-0.2 2.1+/-0.3 **

Air Filter-SFAI 819/99 Beta 2.0+/-0.3 1.9+/-0.2 -*

Air Filter-SFA2 8/9/99 Beta 1.9+/-0.2 1.9+/-0.2 Air Filter-SFA3 8/9/99 Beta 1.9+/-0.2 1.9+/-0.2 Air Filter-SFA4 8/9/99 Beta 1.3+/-0.2 1.4+/-0.2 -*

Samples split with Teledyne Brown Engineering, Environmental Services, Westwood, NJ. 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, 1999 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1999 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 10-2 pCi/m 3 Air Iodine-A2 8/9/99 1-131 <0.3 <0.3 Air Iodine-A5 8/9/99 1-131 <0.5 <0.6 pCi/L Bay Water-Wa2 8/15/99 Tritium 291+/-41 313+/-41 300+/-100 pCi/kg Vegetation-lb4 9/27/99 Gamma <MDA <MDA <MDA Vegetation-I b5 9/27/99 Gamma <MDA <MDA <MDA Vegetation-lb6 9/27/99 Gamma <MDA <MDA <MDA Vegetation-lb7 9/27/99 Gamma <MDA <MDA <MDA Vegetation-lb8 9/27/99 Gamma <MDA <MDA <MDA Vegetation-lb9 9/27/99 Gamma <MDA <MDA <MDA 3

10-2 pCi/m Air Filter-Al 9/20/99 Beta 2.8+/-0.4 2.9+/-0.4 Air Filter-A2 9/20/99 Beta 2.7+/-0.3 2.7+/-0.3 **

Air Filter-A3 9/20/99 Beta 2.6+/-0.4 2.6+/-0.4 Air Filter-A4 9/20/99 Beta 2.4+/-0.3 2.5+/-0.3 Air Filter-A5 9/20/99 Beta 1.8+/-0.2 1.9+/-0.2 Air Filter-SFA1 9/20/99 Beta 1.8+/-0.2 1.8+/-0.2 Air Filter-SFA2 9/20/99 Beta 2.4+/-0.3 2.5+/-0.3 Air Filter-SFA3 9/20/99 Beta 2.2+/-0.3 2.2+/-0.3 Air Filter-SFA4 9/20/99 Beta 2.2+/-0.2 2.2+/-0.2 Air Iodine-Al 9/13/99 1-131 <0.3 <0.3 Air Iodine-A3 9/13/99 1-131 <0.5 <0.5 mRP90 Days DR03 9/30/99 TLD 10.78+/-1.39 9.97+/-0.77 *,l-DR04 9/30/99 TLD 12.06+/-1.78 11.74+/-1.43 DR05 9/30/99 TLD 11.61+/-0.98 11.14+/-1.11 DR06 9/30/99 TLD 9.91+/-1.36 9.44+/-1.13

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

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

82

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1999 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis mRJ90 Days DR07 9/30/99 TLD 9.91+/-1.51 9.30+/-1.21 DR08 9/30/99 TLD 15.18+/-1.85 13.64+/-1.42 DR32 9/30/99 TLD 9.57+/-0.78 9.40+/-0.75 DR33 9130/99 TLD 15.80+/-2.27 15.28+/-1.31 SFDR04 9/30/99 TLD 16.35+/-1.49 16.10+/-1.42 SFDR05 9/30/99 TLD 12.92+/-0.78 12.51+/-1.60 RPDRIO 9/30/99 TLD 48.80-+/-4.72 50.08+/-8.55 10.2 pCifn3 Air Filter-Al 10/11199 Beta 1.9+/-0.2 1.9+/-0.2 Air Filter-A2 10/11/99 Beta 1.5+/-0.2 1.4+/-0.2 **

Air Filter-A3 10/11/99 Beta 1.5+/-0.2 1.6+/-0.2 **

Air Filter-A4 10/11/99 Beta 1.8+/-0.3 1.8+/-0.2 -*

Air Filter-A5 10/11/99 Beta 2.0+/-0.2 1.8+/-0.2 Air Filter-SFA1 10/11/99 Beta 1.9+/-0.2 1.8+/-0.2 **

Air Filter-SFA2 10/11/99 Beta 1.8+/-0.2 1.9+/-0.2 **

Air Filter-SFA3 10/11/99 Beta 1.8+/-0.2 1.6+/-0.2 **

Air Filter-SFA4 10/11/99 Beta 1.3+/-0.2 1.4+/-0.1 **

Air Iodine-Al 10/11/99 1-131 <0.3 <0.3 -*

Air Iodine-A2 10/11/99 1-131 <0.4 <0.4 **

pCi/kg Vegetation-lb4 10/25/99 Gamma <MDA <MDA <MDA Vegetation-lb5 10/25/99 Gamma <MDA <MDA <MDA Vegetation-lb6 10/25/99 Gamma <MDA <MDA <MDA Vegetation-lb7 10/25/99 Gamma <MDA <MDA <MDA Vegetation-lb8 10/25/99 Gamma <MDA <MDA <MDA Vegetation-lb9 10/25/99 Gamma <MDA <MDA <MDA

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

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

83

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1999 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 10.2 pCi/m 3 Air Filter-Al 11/8/99 Beta 2.4+/-0.2 2.4+/-0.2 Air Filter-A2 11/8/99 Beta 1.8+/-0.2 1.8+/-0.2 Air Filter-A3 11/8/99 Beta 1.9+/-0.2 2.0+/-0.2 Air Filter-A4 11/8/99 Beta 2.4+/-0.2 2.6+/-0.2 Air Filter-A5 11/8/99 Beta 2.5+/-0.2 2.4+/-0.2 Air Filter-SFA1 11/8/99 Beta 2.5+/-0.2 2.6+/-0.2 Air Filter-SFA2 11/8/99 Beta 2.2+/-0.2 2.3+/-0.2 Air Filter-SFA3 11/8/99 Beta 2.6+/-0.3 2.6+/-0.3 Air Filter-SFA4 11/8/99 Beta 2.9+/-0.3 3.1+/-0.3 10-2 pCi/m 3 Air Iodine-A3 11/8/99 1-131 <0.3 <0.3 '**

Air Iodine-A4 11/8/99 1-131 <0.4 <0.4 pCi/L Bay Water-Wa2 11/15/99 Gamma <MDA <MDA <MDA 3

10.2 pCi/m Air Filter-Al 12/13/99 Beta 2.1+/-0.2 2.2+/-0.2 Air Filter-A2 12/13/99 Beta 1.7+/-0.2 2.0+/-0.2 Air Filter-A3 12/13/99 Beta 1.4+/-0.2 1.7+/-0.2 Air Filter-A4 12/13/99 Beta 1.8+/-0.2 2.0+/-0.2 Air Filter-A5 12/13/99 Beta 1.5+/-0.2 1.7+/-0.2 Air Filter-SFA1 12/13/99 Beta 1.8+/-0.2 2.0+/-0.2 **

Air Filter-SFA2 12/13/99 Beta 1.7+/-0.2 2.2+/-0.2 Air Filter-SFA3 12/13/99 Beta 1.7+/-0.2 2.0+/-0.2 Air Filter-SFA4 12/13/99 Beta 1.6+/-0.2 1.9+/-0.2 Air Iodine-A2 12/13/99 1-131 <0.3 <0.3 Air Iodine-A4 12/13/99 1-131 <0.4 <0.4

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

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

84

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE C Continued Results of Quality Assurance Program for 1999 Sample Type Sample Type of Original Replicate Split*

And Location Date Analysis Analysis Analysis Analysis 10-3 pCi/m3 Air Filters-Al 12/15/99 Gamma <MDA <MDA <MDA Air Filters-A2 12/15/99 Gamma <MDA <MDA <MDA Air Filters-A3 12/15/99 Gamma <MDA <MDA <MDA Air Filters-A4 12/15/99 Gamma <MDA <MDA <MDA Air Filters-A5 12/15/99 Gamma <MDA <MDA <MDA Air Filters-SFAI 12/15/99 Gamma <MDA <MDA <MDA Air Filters-SFA2 12/15/99 Gamma <MDA <MDA <MDA Air Filters-SFA3 12/15/99 Gamma <MDA <MDA <MDA Air Filters-SFA4 12/15/99 Gamma <MDA <MDA <MDA pCi/L Bay Water-Wa2 12/31/99 Tritium 356+/-61 348+/-61 310+/-110 mR/90 Days DR09 12/31/99 TLD 10.98+/-0.95 11.37+/-1.06 DR10 12/31/99 TLD 9.79+/-0.23 10.30+/-1.07 DRI1 12/31/99 TLD 10.98+/-1.29 10.23+/-0.95 DR12 12/31/99 TLD 9.98+/-1.22 10.34+/-1.06 DR13 12/31/99 TLD 11.13+/-0.69 10.85+/-0.69 DR14 12/31/99 TLD 12.93+/-0.35 12.57+/-0.86 **

DR23 12/31/99 TLD 15.14+/-1.68 14.40+/-1.01 **

DR28 12/31/99 TLD 13.61+/-1.02 13.79+/-2.21 **

SFDR06 12/31/99 TLD 14.38+/-1.30 13.92+/-1.33 **

SFDR07 12/31/99 TLD 12.55+/-0.82 13.43+/-1.44 **

RPDR11 12/31/99 TLD 30.31+/-1.66 29.48+/-8.04 **

Samples split with Teledyne Brown Engineering, Environmental Services, Westwood, NJ. 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, 1999 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 3 3 Nuclides pCi/I pCi/kg pCi/kg pCi/kg pCi/kg 10- pCi/m

_1 n .. ......

Na-22 3 30 9 20 9 2 Cr-51 40 400 100 200 75 26 Mn-54 3 30 10 20 8 2 Co-58 3 30 10 15 8 2 Fe-59 8 75 25 35 21 5 Co-60 3 30 10 17 8 2 Zn-65 7 60 18 35 20 4 Nb-95 4 30 10 17 8 2 Zr-95 7 60 18 40 18 5 Ru-1 06 30 200 90 100 70 16 Ag-1 10m 4 30 20 17 9 2 Te- 129m 4 40 11 17 9 3 1-131 16 300 50 50 26 20 Cs-134 3 30 10 17 9 2 Cs-1 37 4 30 10 17 9 2 BaLa-140 20 300 60 80 43 21 Ce-144 27 200 60 90 48 10 86

January 1 - December 31, 1999 Docket Nos. 50-317/318 APPENDIX D Appendix D contains the results of a Land Use Survey conducted around Calvert Cliffs Nuclear Power Plant during July 1999. A table listing the raw data of this survey and a discussion of the results are included in this appendix.

Discussion Table D-1 A Land Use Survey was conducted during July Land Use Survey 1999 to identify, within a distance of 8 kin, the Distance From Plant location of the nearest milk animal, the nearest (km) residence, and the nearest garden greater than 50 Sector Residence Garden m2 in each of the nine sectors over land. A SE 2.7 2.7 detailed description of the Land Use Survey is SSE 2.9 2.9 given in a separate document (48). 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 WNW 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 X/Q. One sampling garden is located in the S sector at a distance of 0.7 km, and another is situated near the site boundary between the SSE and SE sectors at a distance of 2.6 km from the plant. These two sampling sites are considered good indicator locations for radioactive depositions around the plant.

The dose assessment using 1999 meteorological data was performed, and no significant impact from the plant was found.

87

January 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 88

January 1 - December 31, 1999 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 1999. These extra samples are not required by the Off Site Dose Calculation Manual (41). 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 chambers at five locations. During December several events occurred as a result of waste resin transfer. PIC4 located NNW of the ISFSI was closest to these events and, as expected, shows a slightly higher average in December as compared to other months in 1999.

Table E- 11 shows the direct radiation readings from TLDs placed at the perimeter of the resin storage area located to the west of the ISFSI. 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 1 - December 31, 1999 Docket Nos. 50-317/318 (LEFT BLANK) 90

January 1 - December 31, 1999 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 1999 Calvert Cliffs Nuclear Power Plant Non-ODCM Radiological Environmental Monitoring 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 Radiation ..................................................................................................................... 103 E-11 Direct Radiation from Resin Storage Area ............................................................................ 104 91

January 1 - December 31, 1999 Docket Nos. 50-317/318 TABLE E-1 Locations of Non-ODCM Environmental Sampling Stations for Calvert Cliffs Nuclear Power Plant Distance* Direction*

Station Description (Kilometers) (Sector)

A6 Long Beach 4.4 NW A7 Taylors Island, Carpenter's Property 12.6 ENE A8 Cambridge, U of MD Estuarine Center 32.0 NE DR24 Route 4 and Parran Road 3.0 SW DR25 Camp Conoy Guard House 1.0 S DR26 Route 235 & Clarks Landing Rd. 20.5 SW DR27 Route 231 & Route 4 23.0 NW DR28 Taylors Island Emergency Siren #35 12.3 ENE DR29 Taylors Island Emergency Siren #38 12.5 E DR31 Cambridge, U of MD Estuarine Center 32.0 NE DR32 Twining Property, Taylors Island 12.3 NE DR33 P.A. Ransome Property, Taylors Island 14.8 ESE DR34 Shoreline at Barge Road 0.2 NE PICI Taylors Island, Carpenter's Property 12.6 ENE PIC2 On Site before Entrance to Camp Conoy 0.7 S PIC3 Meteorological Station 0.8 WSW PIC4 NNW of ISFSI 0.6 SW PIC5 South of ISFSI 0.6 SW PIC8 CCNPP Visitor's Center 0.3 NW Wbsl Intake Area 0.2 NE Wbs2 Discharge Area 0.3 N Wbs3 Long Beach 4.4 NW Wbs4 Camp Conoy/Rocky Point 3.0 SE Wwl Taylors Island, Carpenter's Property 12.6 ENE "Distanceand direction from the central point between the two containment buildings.

92

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table E-2 Synopsis of 1999 Calvert Cliffs Nuclear Power Plant Non-ODCM Radiological Environmental Monitoring Program Sample Type Sampling Frequency' 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 7 367 1-131 W 367 Air Particulates 3 W 3 155 Gross Beta W 155 Gamma MC 36 Direct Radiation Pressurized Ion Chamber M 6 72 Gamma M 72 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 performed 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, 1999 Docket Nos. 50-317/318 Table E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units 1 & 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) 33 177 (11/12) Discharge Area 236 (4/4) 124 (4/4)

(pCi/kg) Cs-1 37 (33-269) Wbs2 (196-269) (31-201) 0.3 km N Atmospheric Environment Air Particulates Gross Beta (155) 0.5 1.6 (106/106) Long Beach A6 1.7 (53/53) 1.6(49/49)

(10.2 pCi/m 3) (0.7-3.5) 4.4 km NW (0.8-3.5) (0.6-2.8)

Direct Radiation Ambient Radiation TLD (426) -- 22.25 (426/426) East Fence Left 39.67 (24/24) -

(mR/90 days) (6.22-53.44) RPDR11 (30.31-53.44) -

km Pressurized Ion Ionization 5.70 (60/60) NNW of ISFSI PIC4 9.15 (12/12) 6.00 (12/12)

Chamber Chamber (72) (3.94-10.78) 0.6 km SW (8.76-10.78) (5.60-6.59)

(mR/30 days)

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

2From the centerpoint between the two containment buildings.

94

January 1 - December 31, 1999 Docket Nos. 50-317/3 18 Table E-4 Concentration of Gamma Emitters in Bottom Sediment (Results in units of pCi/kg (dry) +1- 2a)

Sample Code Sample Date Cs-137 Gamma Emitters Wbsl 03/25/1999 43 +/- 31

Intake Area 06/16/1999 56 +/-29

08/03/1999 1

10/06/1999 33+/-32

Wbs2 03/25/1999 249 +/-59

Discharge Area 06/16/1999 269 +/-77

08/03/1999 231 +/-52

10/0611999 196+/-52

Wbs3 03/25/1999 231 +/-64

Long Beach 06/16/1999 221 +/- 82

08103/1999 211 +/-71

10/06/1999 211 +/-64

Wbs42 03/25/1999 80 +/- 37

Camp Conoy/ Rocky Point 06/16/1999 201 +/-55

08/03/1999 182 +/-66

10/06/1999 31 +/-24 *

"Non-NaturalGamma Emitters < MDA

'This Isotope < MDA 2 Control Location 95

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table E-5 Concentration of Iodine-131 in Filtered Air (Results in units of 10o pCi/m3 +/- 2o)

Start Date Stop Date A6 A7 1 CAM SFA1 SFA21 SFA3 SFA4 Long Taylors Cambridge MET Visitors NNW of South of Beach Island Station Center ISFSI ISFSI I')rI14O(I r lAI4AAA *

2 * * * *

A *h 01(04/1999 01/11/1999 * *k *

k "* "*.

01111/1999 01/18/1999 * *

k 01/18/1999 01/25/1999 * *

t

k 01/25/1999 02/01/1999 *

02/01/1999 02/08/1999 * *

k *r 02/08/1999 02/16/1999 *

02/16/1999 02/23/1999 * *

r

h 02/23/1999 03/01/1999 * *

"* *J 03/01/1999 03/08/1999 * *

03/08/1999 03/15/1999 * *

03/15/1999 03/22/1999

03/22/1999 03/29/1999 *

03/29/1999 04/05/1999

04/05/1999 04/12/1999 * *

04/12/1999 04/19/1999 *

h

*h 04/19/1999 04/26/1999 * *

"*" 2

A 04/26/1999 05/03/1999 *

k 05/03/1999 05/10/1999 * * '*

05/10/1999 05/17/1999

05/17/1999 05/24/1999

05/24/1999 "*

06/01/1999 * *

06/01/1999 06/07/1999 * *

06/07/1999 06/14/1999 * *

A 06/14/1999 06/21/1999 *

06/21/1999 06/28/1999 * *

i 0612811999 07/06/1999 * * * *h 07/06/1999 07/12/1999 * * *

07/12/1999 07/19/1999 * * *

07/19/1999 07/26/1999 *

07/26/1999 08/02/1999 * * *

<MDA

'Control Location 2 Sampler malfunction/low flow 96

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table E-5 Concentration of Iodine-131 in Filtered Air (Results in units of 10.3 pCi/m 3 +/- 2a)

Start Date Stop Date A6 A71 CAM SFA1 SFA21 SFA3 SFA4 Long Taylors Cambridge MET Visitors NNW of South of Beach Island Station Center ISFSI ISFSI 08/02/1999 08/09/1999 * * * * * *

08/09/1999 08/16/1999 * * * * * *

08/16/1999 08/23/1999 ......

08/23/1999 08/30/1999 * * .....

08/30/1999 09/07/1999 * ......

09/07/1999 09/13/1999 * * * * * *

09/13/1999 09/20/1999 * * * * * *

09/20/1999 09/27/1999 * * * * * *

09/27/1999 10/04/1999 * * * * * *

10/04/1999 10/11/1999 * * * ....

10/11/1999 10/18/1999 * * .....

10/18/1999 10/25/1999 * * * ....

10/25/1999 11/01/1999 ..... *

11101/1999 11/08/1999 .... * *

11/08/1999 11/15/1999 * * * * * *

11/15/1999 11/22/1999 .......

11/22/1999 11/29/1999 * * * * *

1 11/29/1999 12/06/1999 .......

12/06/1999 12/13/1999 * * * ....

12/13/1999 12/20/1999 * * * ....

12/20/1999 12/28/1999 * * .....

12/28/1999 01/03/2000 * * * * * * *

<MDA

'Sampler malfunction/low flow 97

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table E-6 Concentration of Beta Emitters in Air Particulates (Results in units of 102 pCi/m3 +/- 2a)

Start Date Stop Date A6 A7 1 CAM Long Beach Taylors Island Cambridge 12/28/1998 01/04/1999 2.3 +/- 0.2 2 1.2 +/- 0.2 01104/1999 01/11/1999 2.3 +/- 0.3 2.3 +/- 0.3 2.4 +/-0.3 01/11/1999 01/18/1999 1.7 +/- 0.2 1.6 +/- 0.2 1.2 +/- 0.2 01/18/1999 01/25/1999 1.4 +/-0.2 1.2 +/- 0.2 1.1 +/- 0.2 01/25/1999 02/01/1999 1.7+/-0.2 1.5+/-0.2 1.6+/-0.2 02/01/1999 02/08/1999 1.7 +/- 0.2 1.5 +/- 0.2 1.3 +/- 0.2 02/08/1999 02/16/1999 2.0 +/- 0.2 1.8 +/- 0.2 1.7 +/- 0.2 02/16/1999 02/23/1999 2.2 +/- 0.2 2.0 +/- 0.2 2.0 +/- 0.2 02/23/1999 03/01/1999 1.1 +/-0.2 1.0+/-0.2 0.8+/-0.2 03/01/1999 03/08/1999 1.4 +/-0.2 1.5 +/-0.2 1.1 +/-0.2 03/08/1999 03/15/1999 0.8 +/- 0.2 1.0 +/-0.2 0.9 +/- 0.2 03/15/1999 03/22/1999 1.1 +/- 0.2 1.1 +/-0.2 1.1 +1-0.2 03/22/1999 03/29/1999 1.6 +/- 0.2 1.6 +/- 0.2 1.6 +/- 0.2 03/29/1999 04/05/1999 1.7+1 0.3 1.1 +/-0.2 1.1 +/-0.2 04/05/1999 04/12/1999 1.5 +1-0.2 1.5 +/-0.2 1.2 +/-0.2 04/12/1999 04/19/1999 1.5 +/-0.3 1.6 +/-0.2 1.4 +/-0.2 04/19/1999 04/26/1999 1.5 +/- 0.2 1.5 +/- 0.2 1.3 +/- 0.2 04/26/1999 05/03/1999 1.1 +/- 0.2 1.2 +/-0.2 1.0 +/-0.2 05/03/1999 05/10/1999 1.2 +I-0.2 1.3 +/-0.2 1.1 +/-0.2 05/10/1999 05/17/1999 1.0 +/-0.2 1.1 +/-0.2 1.0 +/-0.2 05/17/1999 05/24/1999 0.9 +1-0.2 1.0 +/-0.2 1.1 +/- 0.2 05/24/1999 06/01/1999 1.5 +/- 0.2 2.0 +/-0.2 1.8 +/- 0.2 06/01/1999 06/07/1999 1.4 +1-0.2 2.0 +/-0.6 1.6 +/-0.2 06/07/1999 06/14/1999 1.1 +/-0.2 2 1.0+/-0.2 06/14/1999 06/21/1999 0.9 +/- 0.2 1.0 +/-0.2 0.7 +/- 0.1 06/21/1999 06/28/1999 1.3+/-0.3 1.3+/-0.2 1.1 +/-0.2 06/28/1999 07/06/1999 1.3 +/-0.2 1.7 +/-0.3 1.5 +/-0.2 07/06/1999 07/12/1999 1.5 +/- 0.2 0.6 +/- 0.2 2.6 +/- 0.3 07/12/1999 07/19/1999 1.3 +/- 0.2 1.6 +/- 0.2 1.4 +/-0.2 07/19/1999 07/26/1999 1.3+/-0.2 2.1 +/-0.2 2.1 +/-0.2 07/26/1999 08/02/1999 2.1 +/- 0.3 1.3 +/- 0.2 1.9 +/- 0.3 08/02/1999 08/09/1999 2.1 +/- 0.3 1.5 +/- 0.2 1.7 +/- 0.2 08/09/1999 08/16/1999 2.0 +/-0.2 1.8 +/- 0.2 1.9 +/- 0.2 08116/1999 08/2311999 1.2 +/-0.2 1.0 +/-0.2 0.9 +/- 0.2 08/23/1999 08/30/1999 2.2 +/- 0.2 1.8 +/- 0.2 1.3 +/- 0.2

' Control Location 2 Sampler malfunction/low flow 98

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table E-6 Concentration of Beta Emitters in Air Particulates (Results in units of 102 pCi/m3 +/- 2a)

Start Date Stop Date A6 A71 CAM Long Beach Taylors Island Cambridge 08/30/1999 09/07/1999 1.3+/-0.2 1.3 +/-0.2 1.0 +/-0.2 09/07/1999 09/13/1999 2.5 +/- 0.3 2.1 +/-0.2 1.7 +/-0.2 09/13/1999 09/20/1999 1.8 +/- 0.2 1.7 +/- 0.2 1.9 +/- 0.2 09/20/1999 09/27/1999 2.1 +/- 0.2 2 2.8 +/- 0.2 09/27/1999 10/04/1999 2.7 +/- 0.2 2 2.1 +/- 0.3 10/04/1999 10/1111999 1.3 +/- 0.2 2.0 +/- 0.2 2.0 +/- 0.3 10/11/1999 10/18/1999 1.5 +/- 0.2 1.2 +1-0.2 1.3 +/- 0.2 10/18/1999 10/25/1999 1.7 +/o 0.2 1.6 +/- 0.2 1.7 +/- 0.2 10/25/1999 11/01/1999 2.4 +/- 0.2 2.4 +t-0.2 2.8 +/- 0.3 11/01/1999 11/08/1999 2.2 +/-0.2 1.8 +/-0.2 2.3 +/-0.2 11/08/1999 11/15/1999 3.5 +/- 0.3 2.7 +/- 0.3 3.4 +1-0.3 11/15/1999 11/22/1999 1.3 +/- 0.2 0.8 +/- 0.2 1.3 +1-0.2 11/22/1999 11/29/1999 1.3 +/- 0.2 1.6 +/-0.2 1.8 +/- 0.2 11/29/1999 12/06/1999 1.7 +/- 0.2 1.5 +/-0.2 1.5 +/- 0.2 12/06/1999 12/13/1999 2.0 +1-0.3 1.0 +/-0.2 1.3 +/- 0.2 12/13/1999 12/20/1999 1.7 +/- 0.2 1.5 +/- 0.2 0.7 +/- 0.2 12/20/1999 12/28/1999 2.3 +/- 0.2 2.6 +/- 0.2 2.7 +/- 0.2 12/28/1999 01/03/2000 2.6 +/- 0.3 2.8 +/- 0.3 2.8 +/- 0.3

'Control Location 2 Sampler malfunction/low flow 99

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table E-7 Concentration of Gamma Emitters in Air Particulates (Results in units of 10- pCi/m 3 +/-2a)

Sample Date A6 A7 1 CAM Long Beach Taylors Island Cambridge 01/15/1999 * *

02/15/1999 * *

03/15/1999 * *

04/15/1999 * *

05/15/1999 *

06/15/1999 * *

07/15/1999 *

08/15/1999 * *

09/15/1999 * *

10/15/1999 * *

11/15/1999 * *

12/15/1999 * * *

Non-Natural Gamma Emitters < MDA

'Control Location 100

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table E-8 Concentration of Tritium and Gamma Emitters in Taylors Island Well Water (Results in units of 103 pCi/m 3 +/-2c)

Sample Date H-3 Gamma Emitters 02/02/1999 <41 1 03/02/1999 <41 03/31/1999 <41 04/27/1999 <38 06102/1999 <38 06/30/1999 <38 07/27/1999 <40 08/31/1999 <41 09/29/1999 <40 10/26/1999 <59 11/30/1999 <60 12/29/1999 <59

'Non-Natural Gamma Emitters <MDA 101

January 1 - December 31, 1999 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 PIC1l JAN 5.86 +/-0.59 FEB 5.76 +1-0.58 Taylor's Island MAR 5.60 +/- 0.56 APR 5.65 +/-0.57 MAY 5.91 +1-0.59 JUN 6.46 +1-0.65 JUL 6.59 +/- 0.66 AUG 6.37 +/- 0.64 SEP 5.97 +/- 0.60 OCT 5.94 +/- 0.59 NOV 5.95 +/- 0.60 DEC 5.98 +/- 0.60 PIC2 JAN 4.25 +/- 0.43 FEB 4.24 +/- 0.42 Entrance to Camp MAR 4.21 +/- 0.42 APR 4.25 +/- 0.43 Conoy MAY 4.19 +/- 0.42 JUN 4.02 +/- 0.40 JUL 4.07 +/- 0.41 AUG 4.07 +/-0.41 SEP 3.94 +/- 0.39 OCT 3.94 +1-0.39 NOV 3.97 +1-0.40 DEC 4.01 +1-0.40 PIC3 JAN 4.55 +/- 0.45 FEB 4.67 +/- 0.47 MET Station MAR 4.52 +1- 0.45 APR 4.51 +1-0.45 MAY 4.57 +1-0.46 JUN 4.77 +/- 0.48 JUL 4.95 +/- 0.50 AUG 4.76 +/- 0.48 SEP 4.68 +1-0.47 OCT 4.69 +1-0.47 NOV 4.83 +1-0.48 DEC 5.87 +1-0.59 PIC4 JAN 9.05 +1-0.91 FEB 9.14 +t-0.91 NNW of ISFSI MAR 8.96 +1-0.90 APR 8.91 +/-0.89 MAY 8.97 +1-0.90 JUN 9.19 +/- 0.92 JUL 9.35 +/-0.94 AUG 9.03 +/- 0.90 SEP 8.80 +/- 0.88 OCT 8.76 +/- 0.88 NOV 8.87 +/-0.89 DEC 10.78 +/- 1.08 PIC5 JAN 5.07 +1- 0.51 FEB 5.12 +/- 0.51 S of ISFSI MAR 5.01 +/-0.51 APR 5.01 +/- 0.50 MAY 4.94 +/- 0.49 JUN 4.94 +1-0.49 JUL 4.99 +1-0.50 AUG 4.95 +1-0.50 SEP 4.79 +/- 0.48 OCT 4.81 +1- 0.48 NOV 4.86 +/- 0.49 DEC 5.28 +1- 0.53 PIC8 JAN 5.12 +/-0.51 FEB 5.12 +1-0.51 Visitor's Center MAR 5.27 +1-0.53 APR 6.19 +/- 0.62 MAY 5.74 +1- 0.57 JUN 5.93 +1- 0.59 JUL 5.60 +1-0.56 AUG 5.58 +1- 0.56 SEP 5.44 +/- 0.54 OCT 5.45 +/- 0.55 NOV 5.36 +1-0.54 DEC 5.23 +/- 0.52

'Control Location 102

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table E-1O Direct Radiation (Results in units of mR/90 days +/- 2a)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter DR24 Rt. 4 and Parran Rd. 11.81 +/- 0.62 11.61 +/- 0.96 12.13 +/- 1.31 11.63 +/-1.60 DR25 Camp Conoy Guard House 12.85 +/- 0.88 12.34 +/- 1.61 13.02 +/-2.17 13.16 +/- 1.23 DR26 Rt. 234 and Clark's Landing Road 10.44 +/- 0.44 11.08 +/- 0.62 10.70 +/- 0.98 10.20 +/- 0.81 DR27 Rt. 231 and Rt. 4 11.08 +/-0.31 10.69 +/-0.91 11.50 +-1.20 10.81 +/-1.11 DR28 Taylors Is. Siren #35 14.16 +/- 2.01 14.28 +/- 0.88 15.43 +/-2.13 13.61 +/- 1.02 DR29 Taylors Is. Siren #38 14.64 +/- 1.27 13.75 +/- 0.82 14.56 +/- 0.94 13.32 +/- 1.21 DR31 Cambridge 14.97 +/- 1.84 14.29 +/- 2.21 14.49 +/- 1.86 14.43 +/- 0.86 DR32 Twining Property, Taylors Island 9.84 +/- 1.13 9.61 +/- 0.64 9.67 +/- 0.78 9.65 +/-0.29 DR33 P. A. Ransome Property 15.28 +/- 3.04 14.92 +/- 1.57 15.80 +/- 2.27 15.01 +/- 0.47 DR34 Shoreline at Barge Rd. 9.43 +/- 1.04 9.34 +/- 0.66 1 9.66 +/- 0.92 1Missing Data 103

January 1 - December 31, 1999 Docket Nos. 50-317/318 Table E-11 Direct Radiation from 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 29.92 +/- 3.14 30.95 +/- 1.48 36.58 +/- 3.54 49.83 +/- 5.64 RPDR06 North Fence Upper 30.78 +/- 2.12 39.98 +/- 2.62 44.17 +/-6.43 37.72 +/-6.62 RPDR07 West Fence Right 44.67 +/- 4.49 28.72 +/- 3.15 26.88 +/- 3.51 29.17 +/- 1.78 RPDR08 West Fence Left 7.30 +/- 0.59 36.55 +/- 1.14 36.45 +/-4.68 26.28 +/- 3.77 RPDR09 South Fence Lower 27.40 +/- 1.91 6.22 +/- 0.58 42.30 +/- 55.99 39.66 +/- 2.22 RPDRI0 South Fence Upper 33.73 +/- 3.50 37.65 +/-2.67 48.80 +/- 4.72 11.28+/- 2.12 RPDR11 East Fence Left 53.44 +/- 8.08 39.15 +/-2.06 35.79 +/- 4.77 30.31 +/- 1.66 RPDR12 East Fence Right 52.53 +/- 9.79 40.18 +/-3.94 33.72 +/- 3.99 26.27 +/- 4.12 104

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