ML091410278

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Independent Spent Fuel Storage Installation - Submittal of Annual Radiological Environmental Operating Report for 2008
ML091410278
Person / Time
Site: Calvert Cliffs  Constellation icon.png
Issue date: 05/15/2009
From: Gaines J
Constellation Energy Nuclear Group
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML091410278 (113)
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Text

Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, Maryland 20657 Nuclear Generation Group Constellation Energy; May 15, 2009 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION: Document Control Desk

SUBJECT:

Calvert Cliffs Nuclear Power Plant; Unit Nos. I & 2; Docket Nos. 50-317 & 50-318 Independent Spent Fuel Storage Installation; Docket No. 72-8 Annual Radiological Environmental Operating Report

REFERENCES:

(a) Calvert Cliffs Nuclear Power Plant Technical Specification 5.6.2 (b) Calvert Cliffs Independent Spent Fuel Storage Installation Technical Specification 6.2 In accordance with References (a) and (b), Calvert Cliffs Nuclear Power Plant is submitting the Annual Radiological Environmental Operating Report, for the calendar year 2008.

Should you have questions regarding this matter, please contact Mr. Jay S. Gaines at (410) 495-5219 or Ms. Brenda Nuse at (410) 495-4913.

Very truly yours, Ja S.Gaines Director-Licensing JSG/RDW/bjd

Attachment:

As stated cc: D. V. Pickett, NRC S. Gray, DNR S. J. Collins, NRC R. Manley, MDE Resident Inspector, NRC

ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR THE CALVERT CLIFFS NUCLEAR POWER PLANT UNITS 1 AND 2 AND THE INDEPENDENT SPENT FUEL STORAGE INSTALLATION January 1 - December 31, 2008 A. M. Barnett L. J. Bartal, Ph.D.

B. D. Nuse CONSTELLATION ENERGY CONSTELLATION ENERGY NUCLEAR GENERATION APRIL 2009

(LEFT BLANK)

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE OF CONTENTS LIST OF FIGURES .............................................................. I............................................................. 11 LIST OF TABLES .......................................... ................................... . i I. SUM M ARY .................................................. ..................................... 1 II. CALVERT CLIFFS NUCLEAR POWER PLANT RADIOLOGICAL ENVIRONM ENTAL MONITORING PROGRAM ......................................................... 3 II.A . IN TR OD U CT ION ................................................................................................................................................ 3 II.B . P R OG R A M ............................................................................................................................................................ 3 II.B .1 O b jectiv es .................................................................................................. ................................................... 3 II.B .2 Sam ple C ollection ........................................................................................................................................ 4 II.B .3 Data Interp retation ....................................................................................................................................... 4 I1.B .4 Program E xceptions ...................................................................................................................................... 4 II.C. RESULTS AND DISCUSSIONS ............................................................................................ 4 II.C .1 A q uatic E nvironm ent ....................................................................................................... I..................... ....... 5 I .C .l.a B a y W a ter ................................................................................................................................................... 5 11 C.1.b A quatic O rganism s ..................................................................................................................................... 5 II.C..c Shoreline Sediment .......... ........................................................... 6 II.C .2 A tm ospheric E nvironm ent ............................................ .............................................................................. 9 II.C .2.a A ir P articu late Filters ................................................................................................................................. 9 II.C .2 .b A ir Io d in e.. .................................................................................................................................................. 9 II.C .3 T errestrial E nvironm ent ............................................................................................................................. 9 II.C.3.a Vegetation .............................. . . ............................................................ 11 II.C .4 D irect R ad iatio n .......................................................................................................................................... 11 II.D . C O N C LU S IO N ................................................................................................................................................... 13 III. INDEPENDENT SPENT FUEL STORAGE INSTALLATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM .......................... 21 III.A . IN TR O D U C T IO N .............................................................................................................................................. 21 III.B . P R O GRA M ......................................................................................................................................................... 21 III.B .1 O b iectiv es ................................................................................................................................................... 21 III.B .2 Sam p le C ollection ...................................................................................................................................... 22 III.B3.3 D ata Interpretation .................................................................................................................................... 22 III.B .4 Program E xceptions .................................................................................................................................. 22 III.C. RESULTS AND DISCUSSIONS ...................................................................................................................... 22 III.C .1 A tm ospheric E nvironm ent ........................................................................................................................ 22 III.C .L.a A ir Particulate F ilters ............................................................................................................................. 22 III.C .2 T errestrial E nvironm ent ............................................................................................................................ 23 III.C .2 .a Vegetatio n ............................................................................................................................................... 23 III.C.2.b Soils .................................................................................................................. 23 III.C .3 Direct R ad iation .......................................................................... ............................................................. 24 III.D. C ON C LU SION ................................................................................................................................................ 24 IV. REFERENCES .................. ....................... .............. 28 APPENDIX A Sample Locations for the REM P and the ISFSI .......................... I....................... 29 APPENDIX B Analysis Results for the REM P and the ISFSI ................................................. 49 APPENDIX C Ouality Assurance Pro ramm ................................................................................ 71 APPENDIX D Land Use Survey ................................................................................................... 87 APPENDIX D Land Use Survey ................................................................................................ 88 APPENDIX E Additional Samples and Analysis Results ........................................................ 89

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 LIST OF FIGURES Figure Title Page 1 Tritium in Chesapeake Bay W ater ....................................................................................... 7 2 Silver-II Om 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 Average Relative Air Concentrations .............. 15 6 Atmospheric Dispersion Around CCNPP Average Relative Ground Deposition .............. 17 7 M ean TLD Gam ma Dose, ISFSI ........................................................................................ 25 A-i Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs N uclear P ower P lant ................................................................................................................ 33 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-2 Miles ................................. 39 A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-10 Miles ............................... 41 A-4 Independent Spent Fuel Storage Installation Sampling Locations ...................................... 45 A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations ......... 47 ii

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 LIST OF TABLES Table Title Page 1 Synopsis of 2008 Calvert Cliffs Nuclear Power Plant Radiological Environmental M onitoring P rogram .................................................................................................................. 19 2 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant U nits 1 and 2 ............................................................................................... ...............20 3 Synopsis of 2008 Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Radiological Environmental Monitoring Program.......................................... 26 4 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation ............................................................ 27 A-1 Locations of Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant ..31 A-2 Locations of Environmental Sampling Stations for the Independent Spent Fuel Storage Installation at C alvert C liffs ............................................................................................... 43 B-1 Concentration of Tritium and Gamma Emitters in Bay Water .......................................... 51 B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish .......................................... 52 B-3 Concentration of Gamma Emitters in Oyster Samples ...................................................... 53 B-4 Concentration of Gamma Emitters in Shoreline Sediment .................................................. 54 B-5 Concentration of Iodine- 131 in Filtered Air ........................................................................ 55 B-6 Concentration of Beta Emitters in Air Particulates ............................................................. 57 B-7 Concentration of Gamma Emitters in Air Particulates ........................................................ 61 B-8 Concentration of Gamma Emitters in Vegetation From Locations Around the ISFSI ..... 62 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 D irect Radiation ....................................................................................................................... 67 C-1 Results of Participation in Inter-Lab Comparison Programs ....................... 73 C-2 Results of Quality Assurance Program .......................................... 76 C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry ..................85 D -1 L and U se Survey ...................................................................................................................... 87 D -2 L and U se Survey ..................................................................................................................... 88 E-i Locations of Non-Tech Spec Environmental Sampling Stations for Calvert Cliffs Nuclear P ow er P lant .............................................................................................................................. 91 E-2 Synopsis of 2008 Calvert Cliffs Nuclear Power Plant Non-Tech Spec Radiological Environmental Monitoring Program ........................................... 92 E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units 1 & 2 Non-Tech Spec Radiological Environmental Monitoring Program ............................................................ 93 E-4 Concentration of Gamma Emitters in Bottom Sediment ................................................... 94 E-5 Concentration of Iodine- 131 in Filtered Air ........................................................................ 95 E-6 Concentration of Beta Emitters in Air Particulates ............................................................. 97 E-7 Concentration of Gamma Emitters in Air Particulates ..................................................... 99 E-8 Concentration of Tritium and Gamma Emitters in Taylors Island Well Water ................ 100 iii

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 E-9 Direct Radiation as Measured in Pressurized Ion Chamber ................................................... 101 E-10 D irect R adiation ..................................................................................................................... 102 E-l Direct Radiation from Resin Storage Area ............................................................................ 103 E-i 2 Concentration of Tritium in Groundwater ............................................................................. 104 E-13 Concentration of Gamma Emitters in Groundwater ........................... 105 iv

January 1 - December 31, 2008 Docket Nos. 50-317/5,0-318/72-8 I.

SUMMARY

During this operating period for Calvert Cliffs Nuclear Power Plant (CCNPP) Units 1 and 2, a total of 3365 radiological analyses were performed and the analytical results reviewed. Most of these analyses were performed to satisfy the requirements of the Offsite Dose Calculation Manual (ODCM) (Ref. 6) and the Environmental and Independent Spent Fuel Storage Installation (ISFSI) Technical Specifications (Ref. 10). Some of these samples, although not required by either the ODCM or the Technical Specifications, were collected to maintain our commitments to the surrounding community and to maintain historical continuity of the CCNPP Radiological Environmental Monitoring Program (REMP) that started in 1970. The entire monitoring program in place around CCNPP is divided into three parts: the original REMP, the ISFSI monitoring program, and the Non-ODCM Radiological Environmental Monitoring. The following paragraphs describe each of these parts in more detail.

A total of 660 radiochemical analyses were performed on 592 environmental samples and 546 thermoluminescent dosimeters (TLDs) were analyzed for ambient radiation exposure rates as part of the original REMP. These analyses were performed to satisfy the requirements of the ODCM (Ref. 6) and the Environmental Technical Specifications (Ref. 5).

For the ISFSI monitoring program, 359 radiochemical analyses were performed on 299 environmental samples, 52 of which were in common with the original REMP. In addition, 474 TLDs, 24 in common with the original REMP, were analyzed for ambient radiation exposure rates. These analyses were performed to satisfy the requirements of the ODCM (Ref. 6) and the ISFSI Technical Specifications (Ref. 10).

In addition, 522 analyses were performed on476 additional environmental samples, and 480 additional TLDs were analyzed for ambient radiation exposure rates. Also, six pressurized ion chambers continuously monitored the environs around the plant for ambient radiation levels resulting in 66 monthly measurements. As mentioned earlier, these 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 monitoring commitments made to the surrounding community. On-site groundwater monitoring performed in accordance with the Nuclear Energy Institute (NEI)

Industry Groundwater Protection Initiative are also included.

And lastly, 202 radiochemical analyses were performed on 202 quality assurance samples and 132 quality assurance TLDs were analyzed as part of an internal and external quality assurance program associated with Teledyne Brown Engineering. Laboratory inter-lab comparison samples obtained from Environmental Resource Associates (ERA) and Analytics' Inc. were also analyzed.

Samples collected from the aquatic environment included bay water, fish, oysters, and shoreline sediment. Bay water was analyzed for tritium and gamma emitters. Fish, oysters, and shoreline sediments were analyzed for gamma emitting radionuclides.

I

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Monitoring the atmospheric environment involved sampling the air at various locations sur-rounding CCNPP and the ISFSI. Air particulates and gaseous iodine samples 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 original 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.

Natural radioactivity was detected in essentially all 3365 radiological analyses performed. Low levels of various man-made fission and activation products were also observed in 28 of these analyses. Twenty-three of these observations were attributed to fallout from past atmospheric weapons testing, while four analyses yielded low level positive results for the presence of H-3, which were attributable to plant operation. Note: a positive tritium result was observed in a ground water sample taken at Taylors Island. The value was very close to the MDA for this analyses and it is most probably a false positive. Detailed discussions about the results of these analyses are contained in the body of this report.

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 3.48 x 102 mrem via liquid and gaseous pathways, which is less than 0.05% of the acceptable limit of 75 mrem/yr as specified in 40 CFR Part 190;
b. a maximum whole body dose of 3.64 x 10-3 mrem via liquid and gaseous pathways, which is less than 0.02% of the acceptable limit of 25 mrem/yr as specified in 40 CFR Part 190;
c. a maximum calculated dose to all other organs via liquid and gaseous pathways was equal to 9.56 x 10-3 mrem to the GI Tract. This dose is less than 0.04% of the allowable limit of 25 mrem/yr as specified in 40 CFR Part 190.

Thus, it is concluded based upon the levels of radioactivity observed and the various dose calculations performed, that CCNPP Units 1 and 2 and the ISFSI did not cause any significant radiological impact on the surrounding environment.

2

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 II. CALVERT CLIFFS NUCLEAR POWER PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM II.A. INTRODUCTION Constellation Energy (CE), previously known as Baltimore Gas and Electric Company (BGE),

has been conducting a REMP in the environs of the CCNPP 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. The location of the plant in relation to local metropolitan areas is shown on Figure A-i, page 34.

Results of the monitoring program for the pre-operational and previous operational periods through December 31, 2004 have been reported in a series of documents (Ref. 1-4). The results from previous operational periods are contained in annual reports submitted to the NRC as required.

Results of the monitoring program for the current operational period are included in this report.

The report presents the content of the REMP (Table 1), the sampling locations (Appendix A), the summary of the analytical results (Table 2), a compilation of the analytical data (Appendix B),

the results of the Analytics Inter-Lab Comparison 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 (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 CCNPP Units 1 and 2.

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

a. To verify that radioactivity and ambient radiation levels attributable to plant operation are within the limits specified in the ODCM (Ref. 6) and the Environmental Radiation Protection Standards as stated in 40 CFR Part 190,
b. To detect any measurable buildup of long-lived radionuclides in the environment,
c. To monitor and evaluate ambient radiation levels, 3

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8

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 Constellation Energy according to CCNPP Procedures (Ref. 7,12).

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 Proaram Exceptions There were no program exceptions for this operating period.

II.C. RESULTS AND DISCUSSIONS All the environmental samples collected during the year were analyzed using Constellation Energy laboratory procedures (Ref. 8). The analytical results for this reporting period are presented in Appendix B and are also summarized in Table 2. For discussion, the analytical results are divided into four categories. The categories are the Aquatic Environment, the Atmospheric Environment, the Terrestrial Environment, and Direct Radiation. These categories are further divided into subcategories according to sample type (e.g., Bay Water, Aquatic Organisms, etc., for the Aquatic Environment).

4

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 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 duringthe 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 three of the four quarters.

There was tritium observed in the Intake (Wal) in one of the four quarters. The detectable concentration observed in the Intake was 288 +174. The detectable concentrations observed in the Discharge ranged from 356 + 181 to 435 +/- 176 pCi/L, which is similar to the ranges observed in previous years..

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

Monthly analyses of bay water samples. from both locations for gamma emitters exhibited very low levels of Cs-137 ranging from 3+2 to 4+/-2 pCi/L. These levels are close to the MDA for this type of analysis.

II.C.l.b Aquatic Organisms Samples of three aquatic organisms were obtained from four locations during the year. Samples of fish, when in season, are normally collected from the Discharge Area (sample codes lal 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 discharge' and the control point in the Patuxent River. Oyster samples were obtained quarterly from Camp Conoy (sample code Ia3) and Kenwood Beach (Ia6).

Edible portion of the fish and oyster samples were analyzed for gamma emitters. Gamma spectrometric analyses of the fish exhibited naturally occurring K-40, but no detectable concentrations of any plant-related radionuclides. Oyster samples likewise exhibited naturally occurring K-40, but no detectable concentrations of any plant related radionuclides.

5

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 II.C.1.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 naturally occurring radionuclides,' but no detectable concentration of any plant-related radionuclides.

6

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE 1 Tritium in Chesapeake Bay Water 1200 I 1000 800 600 400 -

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7

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE 2 Silver-1Orn and Potassium-40 in Chesapeake Bay Oysters 0.2 0.18 0.16 S0,14

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January 1.- December 31, 2008 Docket Nos. 50-317/50-318/72-8 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. The values ranged from 0.5 x 10-2 to 4.2 x 10-2 pCi/m 3 for the indicator locations and 0.6 x 10-2 to 3.4 x 10-2 pCi/m 3 at the control lo-cation. The location with the highest overall mean of 1.9 x10-2 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. Naturally occurring radionuclides, such as Be-7, were detected in nearly all samples.

Figure 3 depicts the historical trends of beta activity.

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

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

Figure 3 depicts the historical trends of radioiodine.

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

9

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE 3 Nuclear Fallout in the Calvert Cliffs Area SURFACE AIR VAPORS, LUSBY, MD (A4) 250 ATMOSPHERIC 200 FALLOUT E

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January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 II.C.3.a Vegetation [

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

All samples showed detectable amounts of naturally occurring K-40 and Be-7. Cs-137 was detected in four of the samples taken from one location. The Cs-137 concentrations ranged from 12+/-9 to 56+/-17 pCi/Kg. While the presence of Cs-137 in these samples may be plant-related, it is most probably due to the residual fallout from past atmospheric nuclear weapons testing. It should also be noted that the presence of Cs-137 was observed in tree leaf samples collected in lieu of vegetation samples, which were unavailable from the gardens. The Cs-137 in these samples could have been the results of years of uptake of this radionuclide from the soil as opposed to deposition of this radionuclide on the shorter lived garden vegetation.

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.

TLDs 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.

DR10), Dirt Road off Mackall and Parran Roads (sample code DRI 1), Mackall and Bowen Roads (sample code DR12), Wallville (sample code DR13), Rodney Point (sample code DR14),

Mill Bridge and Turner Roads (sample code DR15), Appeal School (sample code DR16), Cove Point and Little Cove Point Roads (sample code DRi17), Cove Point (sample code DR18), Long Beach (sample code DR19), and On Site Near Shore (sample code DR20). The three control locations are the Emergency Operations Facility (sample code DR21), 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 11.40 mR and ranged from 8.94 to 15.16 mR as reported in Table 2. The control locations showed a 90 day mean of 12.94 mR with ranges from 9.73 to 16.48 mR. The location with the highest overall mean of 15.54 was DR23, Taylors Island, which ranged from 14.29 to 16.48 mR. A comparison of the means and ranges of the current TLD data with those of both the historical data and the regional data shows no plant-related contribution to the measured direct radiation exposure. 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, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE 4 Mean TLD Gamma Dose, Calvert Cliffs Nuclear Power Plant 6

- 4 Miles (DR10-18)

Control Locations (DR21-23)

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12

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 II.D. CONCLUSION Low levels of tritium and Cs-137, man-made fission by-products, were observed in the environment surrounding the plant. The presence of Cs-137 in a few samples is attributable to residual fallout from atmospheric weapons testing. Tritium, found in quarterly composites of bay water samples, was related to the operation of the plant.

Historical trends for tritium in bay water, Ag- 110m and K-40 in oyster samples, nuclear fallout in the Calvert Cliffs area, and TLD data are depicted in Figures 1 through 4. As can be seen from these figures, the plant made no adverse radiological contributions to the surrounding environment.

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 3.2 x 10-2 mrem to a child via the plume, ground, vegetable, meat, and inhalation pathways at 1.7 km SW of Calvert Cliffs. This is 0.04% of the acceptable limit of 75 mrem/yr as specified in 40 CFR Part 190, "Environmental Radiation Protection Standards for Nuclear Power Operations."

A maximum whole body gamma dose of 1.2 x 10-3 mrem to a child at 1.7 km SW of Calvert Cliffs, which is less than 0.01% of the acceptable dose limit of 25 mrem/yr as specified in 40 CFR Part 190.

A maximum dose to any other organ, in this case the skin, of 2.9 x 10-3 mrem to an adult at 1.7 km SW of Calvert Cliffs. This is about 0.01%,of the acceptable dose limit of 25 mrem/yr as specified in 40 CFR Part 190.

Liquid Pathways A maximum thyroid dose of 2.8 x 10-3 mrem to an adult for all liquid pathways, which is less than 0.01% of the acceptable dose limit of 75 mrem/yr as specified in 40 CFR Part 190.

A maximum whole body dose of 2.44 x 10-3 mrem to a child via all liquid pathways, which is less than 0.01% of the acceptable dose limit of 25 mrem/yr as stated in 40 CFR Part 190.

13

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 A maximum dose to any organ, in this case the GI-Tract, of 8.46 x 10-3 mrem to an adult for all pathways, which is less than 0.04% of the acceptable dose limit of 25 mrem/yr specified in 40 CFR Part 190.

Gaseous and Liquid Pathways Combined A maximum thyroid dose of 3.48 x 10-2 mrem via liquid and gaseous pathways, which is less than 0.05% of the acceptable limit of 75 mrem/yr as specified in 40 CFR Part 190; A maximum whole body dose of 3.64 x 10-3 mrem via liquid and gaseous pathways, which is less than 0.02% of the acceptable limit of 25 mrem/yr as specified in 40 CFR Part 190; A maximum calculated dose to all other organs via liquid and gaseous pathways was equal to 9.56 x 103 mrem to the GI-Tract. This dose is less than 0.04% of the allowable limit of 25 mrem/yr as specified in 40 CFR Part 190.

In all cases, the calculated doses are a small fraction of the applicable limits specified in 40 CFR Part 190.

Therefore, it is concluded that the operation of Calvert Cliffs Units 1 & 2 produced radioactivity and ambient radiation levels significantly below the limits of the ODCM and 40 CFR Part 190, and there was no significant buildup of plant-related radionuclides in the environment due to the operation of the CCNPP.

14

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE 5 Atmospheric Dispersion Around CCNPP Average Relative Air Concentrations SIRE. CALUERT CLIFFS TITLE: TIME INTEGRATED B41B2*B09 11:13 X/Q ELEUVAED RUERAGE I0*~

PERIOD:8696.85 HOUR INTEGRATION;RELEf85E SCflLE'i ERS. U.L8 MILE5 MODEL- TIME INTEGRATED STRAIGHT LINE START DOSE INTEGRAT[ON! 01/01/02 01!00 END DOSE INTEGRATION! 12/31/02 24!00 CONTOUR Y/0 LEGEND (SE CI'13) 2 2-OE-fl?-4.OE-07 3 1 .HE-07-2.OE-07 4 7.OE-09-1 .OE-07 5

7 2.IJE-09-4.OE-08 1 .0E-@R-2.0E-08 7.OE-fg-1 .GE-09 15

January 1 - December 31, 2008 Docket'Nos. 50-317/50-318/72-8 (LEFT BLANK)

N 16

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE 6 Atmospheric Dispersion Around CCNPP Average Relative Ground Deposition SITE: CAL UERT TITLE: TIME IINTEGRATED CLIFFS DEPOSITION DIQ 04/02/9 11:15 HOUR INTEGRflTIOfl;RELEflSE FO U SCRLE:i PERIOD:3690.,8 I e.6U0ILE5 MODEL! TIHE INTEGRATED STRA(CHT LINE START DOSE INTEGRAT[ON! 01/i1/2 01!002 END DOSE INTEGRATION! 12/31/02 24!00 CONTOUR D/0 LEGEND (1fM2) 1~ 4.IE-2g*

2 4.- OlE-09 OE-09 2.OE-8g-4. tE-8 3 1 2E-0O-2.BE-09 45  ?. OE -1 0 -1. OE-18 4.OE ?.OE-1 0 2.0E 4.0OE-1 0 7

6 1 .OE-10-2.0E-10

?.@E-11 -1.0E-10 4.OE-11 -7.0E-11 2.@E-11 -4.OE-11 17

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 18

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table I Synopsis of 2008 Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Sample Type Sampling Number of Number Collected Analysis Analysis Number Analyzed Frequency Locations Frequency Aquatic Environment Bay Water MC 2 24 Gamma M 24 H-3 QC 8 Fish A 4 4 Gamma A 4 Oysters Q 2 8 Gamma Q 8 Shoreline SA 1 2 Gamma SA 2 Sediment Atmospheric Environment Air Iodine W 5 259 1-131 W 259 Air W _ 5 259 Gross Beta W 259 Particulates Gamma MC 60 Direct Radiation Ambient Q 23 546 TLD Q 546

.Radiation Terrestrial Environment Vegetation M 3 36 Gamma M 36 19

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table 2 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant Units 1 and 2 Medium or Type and Total Lower Limit of Indicator Location with Highest Annual Control Locations Pathway Sampled Number of Detection (LLD) Locations Mean Highest Annual Mean (F) / Range Mean (F)/Range (Unit of Analyses (F)/Range Mean Measurement) Performed Name/Distance &

Direction Aquatic Environment Bay Water Gamma (24) 2.3 4 (2/12) Discharge Vicinity 4 (2/12)

(pCi/L) Cs-1 37 (3-4) Wa2 (3-4) 0.3 km N H-3 (8) 300 394 (3/4) Discharge Vicinity 394 (3/4) 288 (1/4)

(356-435) Wa2 (356-435) 0.3 km N Atmospheric Environment Air Gross Beta (259) 0.5 1.8 (207/207) EOF A5 1.9 (52/52) 1.9 (52/52)

Particulates (0.5-4.2) 19.3 km WNW (0.6-3.4) (0.6-3.4)

(10-2 pCi/m 3)

Direct Radiation Ambient TLD (546) 11.40 (480/480) Taylors Island 15.54 (24/24) 12.94 (72/72)

Radiation (8.94-15.16) DR23 (14.29-16.48) (9.73-16.48)

(mR/90 days) 12.6 km ENE Terrestrial Environment Vegetation Gamma (36) 27 28 (4/24) Camp Conoy 56 (1/4)

(pCi/L) Cs-1 37 (12-56) Entrance Ib6 0.7 km S 20

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 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 Installation (ISFSI). The first dry fuel storage canister was loaded into the ISFSI in November of 1993, with more canisters being loaded in subsequent years. During this operating period, four additional canisters of spent fuel were transferred to the ISFSI.

Results of the monitoring program for the ISFSI for the current period are included in this report.

This report presents the content of the ISFSI REMP (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). Interpretation 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. Pressurized Ion Chambers (PICs), because they duplicate direct surveillance by TLDs and because they experience problems with reliability, were excluded from the Technical Specification portion of the ISFSI monitoring program. PIC results, however, are given in Table E-9 and will continue to be Non-ODCM surveillance to satisfy our commitment to the surrounding community.

The results were compared with that generated during the previous ISFSI pre-operational periods and the current and previous CCNPP REMP periods. These comparisons show little. deviations from previous periods and are very close to the natural background levels for the region with the exception of TLDs around the north end of the ISFSI. More detailed discussions of these results are given in Section III.C.

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, 21

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8

c. To detect any measurable buildup of long-lived radionuclides in the environment due to the ISFSI,
d. To monitor and evaluate ambient radiation levels around the ISFSI,
e. To determine whether any statistically significant increase occurs in the con-centration of radionuclides near the ISFSI.

III.B.2 Sample Collection The locations of the individual sampling sites are listed in Table A-2 and shown in Figures A-4 and A-5. All samples were collected by contractors to, or personnel of, Constellation Energy personnel according to CCNPP Procedures (Ref. 7, 8).

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

III.B.4 Program Exceptions There were no program exceptions during this operating period III.C. RESULTS AND DISCUSSIONS All the environmental samples collected were analyzed using Constellation Energy laboratory procedures (Ref. 8). The analytical results for this reporting period are presented in Appendix B and are also summarized for the period in Table 4. For discussion, the analytical results are divided into three categories. The categories are the Atmospheric Environment, the Terrestrial Environment, and Direct Radiation. These categories are further divided into subcategories according to sample type (e.g., Vegetation and Soil for Terrestrial Environment).

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

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

III.C. L.a Air Particulate Filters Weekly composite air particulate filter samples were collected from five locations during the period. These locations are On Site before the Entrance to Camp Conoy (sample code Al; in common with the CCNPP REMP), Meteorological Station (SFA 1), CCNPP Visitor's Center 22

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (SFA2), NNW of the ISFSI (SFA3), and SSE 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. These values ranged from 0.5 x 10-2 to 4.1 x 10-2 pCi/m 3 for the indicator locations and 0.5 x 10-2 to 5.3 x 10-2 pCi/m 3 for the control location. The location with the highest overall mean of 1.9 x 10-2 pCi/m 3 was SFA2, Visitors Center.

Gamma spectrometric analyses of monthly composited air particulate samples exhibited no detectable concentrations of any plant-related radionuclides in any of these samples. Naturally occurring radionuclides, such as Be-7, were detected in nearly all 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 SFb 1), CCNPP Visitor's Center (sample code SFb2),

NNW of the ISFSI (sample code SFb3), SSE 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.

Vegetation samples were analyzed for gamma emitting radionuclides. Cs-137 was detected in three quarterly samples taken from two indicator sites. The Cs-137 concentrations ranged from 19+/- 11 to 8 1+/-34 pCi/Kg while the presence of naturally occurring radionuclides such as K-40 were detected in all 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 SFS 1), CCNPP Visitor's Center (sample code SFS2), NNW of the ISFSI (sample code SFS3), SSE 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 ten quarterly samples from both indicator and control locations. The Cs-137 concentrations ranged from 31 +/- 39 to 639 + 76 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.

23

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 III.C.3 Direct Radiation Direct radiation is measured by a network of TLDs surrounding the ISFSI. These TLDs are collected quarterly from nineteen locations surrounding the ISFSI, plus one control TLD location at the Visitor's Center (sample code SFDR7). The locations include On Site before the Entrance to Camp Conoy (sample code DR7, common to both the CCNPP Program and the ISFSI Program) and the Meteorological Station (sample code DR30, previously a location maintained for historical continuity.) The other sampling locations are: SW of ISFSI, (sample code SFDR1); NNW of ISFSI, (sample code SFDR2); North of ISFSI, (sample code SFDR3); NE of ISFSI, (sample code SFDR4); East of ISFSI, (sample code SFDR5); ESE of ISFSI, (sample code SFDR6); NNW of ISFSI, (sample code SFDR8); SSE of ISFSI, (sample code SFDR9); NW of ISFSI, (sample code SFDR10); WNW of ISFSI, (sample code SFDR1 1); WSW of ISFSI, (sample code SFDR12); South of lSFSI, (sample code SFDR13); SE of ISFSI, (sample code SFDR14); ENE of ISFSI, (sample code SFDR15); SSW of ISFSI, (sample code SFDR16); NNE of ISFSI, (sample code SFDR17) and West of ISFSI, (sample code SFDR18). Sampling locations are shown on Figures A-4 and A-5.

The mean 90 day ambient radiation measured at the ISFSI indicator locations was 23.82 mR and ranged from 9.61 to 41.49 mR as reported in Table 4. The control location showed a 90-day mean of 12.34 mR and ranged from 11.94 to 12.83 mR. The location with the highest overall mean of 39.26 mR with a range of 35.82 to 41.49 mR was SFDR8, W of ISFSI. These readings are consistent with those expected from the storage of spent fuel in the ISFSI. 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.

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. The activities of this radionuclide are well below the federal limits established in 40 CFR Part 190, "Environmental Radiation Protection Standards for Nuclear Power Operations" and are comparable to those observed in previous annual reporting periods for the CCNPP REMP and in the earlier pre-operational data for the ISFSI. Naturally occurring radionuclides such as K-40, were also detected in all these samples. No other plant-related radionuclide was observed in the environs of the ISFSI.

In general, the results in the following tables continue the historical trends previously observed at the official sites of the CCNPP REMP.

24

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE 7 Mean TLD Gamma Dose, ISFSI 10 9-8-

7-(0 6-0 CV,)

E 4-3-

2-0 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 25

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table 3 Synopsis of 2008 Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Radiological Environmental Monitoring Program Sample Type Sampling Number of Number Collected Analysis Analysis Number Analyzed Frequency Locations Frequency Atmospheric Environment Air Particulates W 5 259 Gross Beta W 259 Gamma MC 60 Direct Radiation Ambient Q 20 474 TLD Q 474 Radiation Terrestrial Environment Vegetation Q 5 20 Gamma Q 20 Soil Q 5 20 Gamma Q 20 26

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table 4 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Medium or Type and Total Lower Limit of Indicator Location with Highest Annual Control Pathway Number of Detection (LLD) Locations Mean Highest Annual Mean (F) / Locations Mean Sampled (Unit of Analyses (F)/Range Mean Range (F)/Range Measurement) Performed Name/Distance

-& Direction Atmospheric Environment Air Gross Beta (207) 0.5 1.8 (207/207) Visitors Center 1.9 (52/52) 1.9 (52/52)

Particulates (0.5-4.1) SFA2 .(0.5-5.3) (0.5-5.3)

(10-2 pCi/m3) 0.7 kmNNE Direct Radiation Ambient TLD (480) 23.82 (456/456) West of ISFSI 39.26 (24/24) 12.34 (24/24)

Radiation (9.61-41.49) SFDR18 (35.82-41.49) (11.94-12.83)

(mR/90 days) 0.1 kmW Terrestrial Environment Vegetation Gamma (20) 27 .55 (3/16) SSE of ISFSI 81(1/4)

(pCi/L) Cs-137 (19-81) SFb4 0.1 km SSE Soil Gamma (20) 17 248 (8/16) SSE of ISFSI 639 (1/4) 88 (2/4)

(pCi/kg) Cs-137 (31-639) SFS4 (50-125) 0.1 km SSE 27

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 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 I 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) 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 (5) Calvert Cliffs Nuclear Power Plant, Units-1 and 2, License Nos. DPR-53 and DPR-69, Technical Specification 5.6.2; Annual Radiological Environmental Operating Report.

(6) Offsite Dose Calculation Manual for the Calvert Cliffs Nuclear Power Plant.

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

(8) Constellation Energy Laboratory Procedures Manual, General Services Department.

(9) Constellation Energy, "Land Use Survey Around Calvert Cliffs Nuclear Power Plant, August 2008."

(10) Calvert Cliffs Independent Spent Fuel Storage Installation Technical Specifications, Appendix A to Materials License SNM-2505 (11) 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.

(12) CP-501, Liquid and Steam Sampling Techniques.

(13) Constellation Energy, "Land Use Survey Around Calvert Cliffs Nuclear Power Plant, August 2007."

28

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 APPENDIX A Sample Locations for the REMP and the ISFSI Appendix A contains information concerning the environmental samples that were collected during this operating period.

Sample locations and specific information about individual locations for the CCNPP REMP are given in Table A-1. Figure A-I shows the location of the CCNPP 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.

29

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE OF CONTENTS - SAMPLING LOCATIONS Table Title Page A-1 Locations of Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant..31 A-2 Locations of Environmental Sampling Stations for the Independent Spent Fuel Storage Installation at C alvert C liffs ............................................................................................... 43 Figure Title Page A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs N uclear Pow er Plant ........................................................................................................... 33 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-2 Miles ................................. 39 A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-10 Miles ............................... 41 A-4 Independent Spent Fuel Storage Installation Sampling Locations ...................................... 45 A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations ......... 47 30

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE A-1 Locations of Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant Distance' Direction' Station Description (KM) (Miles) (Sector)

A1 2 On Site before Entrance to Camp Conoy 0.7 0.4 S A2 Camp Conoy at Emergency Siren 2.5 1.6 SSE A3 Bay Breeze Road 2.6 1.6 SE A4 Route 765 Lusby 2.9 1.8 SSW A5 Emergency Operations Facility (EOF) 19.3 12.0 WNW DRI On Site along Cliffs 0.6 0.4 NW DR2 Route 765, Auto Dump 2.7 1.7 WNW DR3 Route 765, Giovanni's Tavern (Knotty Pine) 2.3 1.4 W DR4 Route 765, across from White Sands Drive 2.0 1.2 WSW DR5 Route 765, John's Creek 2.4 1.5 SW DR6 Route 765 Lusby 2.9 1.8 SSW DR7 2 On Site before Entrance to Camp Conoy 0.7 0.4 S DR8 Camp Conoy at Emergency Siren 2.5 1.6 SSE DR9 Bay Breeze Road 2.6 1.6 SE DR1O Calvert Beach Rd. and Decatur Street 6.4 4.0 NW DR 1I Dirt road off Mackall & Parran Roads 6.6 4.1 WNW DR12 Mackall and Bowen Roads 6.7 4.2 W DR13 Mackall Rd. near Wallville 6.1 3.8 WSW DR14 Rodney Point 6.4 4.0 SW DR15 Mill Bridge and Turner Roads 6.2 3.9 SSW DR16 Across from Appeal School 6.5 4.0 S DR17 Cove Point and Little Cove Point Roads 5.9 3.7 SSE DRI 8 Cove Point 7.1 4.4 SE DRI9 Long Beach 4.4 2.7 NW DR20 On Site near shore 0.4 0.2 NNW DR21 Emergency Operations Facility (EOF) 19.3 12:0 WNW.

DR22 Solomons Island 12.5 7.8 S DR23 Taylors Island, Carpenter's Property 12.6 7.8 ENE Ial,2 Discharge Area 0.3 0.2 N Ia3 Camp Conoy 0.9 0.6 E Ia4,5 Patuxent River N/A N/A N/A Ia6 Kenwood Beach 10.7 6.6 NNW Ial0 Hog Island 15.3 9.5 SSE Ibl,2,3 Garden Off Bay Breeze Road 2.6 1.6 SSE Ib4,5,6 On Site before Entrance to Camp Conoy 0.7 0.4 S Ib7,8,9 Emergency Operations Facility (EOF) 19.3 12.0 WNW Wal Intake Area 0.2 0.1 NNE Wa2 Discharge Area 0.3 0.2 N Wb1 Shoreline at Barge Rd. 0.6 0.4 ESE Distance and direction from the central point between the two containment buildings.

2 Common to both the REMP and ISFSI monitoring program.

31

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 32

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs Nuclear Power Plant 33

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 34

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations 0-2 Miles 35

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 36

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations 0-10 Miles 37

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 38

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations 0-2 Miles 39

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 40

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations 0-10 Miles 41

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 42

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE A-2 Locations of Environmental Sampling Stations for the Independent Spent Fuel Storage Installation at Calvert Cliffs Distance' Direction' Station Description (KM) (Sector)

Air Particulate Al 2 On Site before Entrance to Camp Conoy 0.3 ESE SFA1 Meteorological Station 0.3 NW SFA2 CCNPP Visitor's Center 0.8 N SFA3 NNW of ISFSI 0.1 NNW SFA4 SSE of ISFSI 0.1 SSE Direct Radiation SFDRI SW of ISFSI 0.2 SW SFDR2 NNW of ISFSI 0.2 NNW SFDR3 North of ISFSI 0.1 N SFDR4 NE of ISFSI 0.1 NE SFDR5 East of ISFSI 0.1 E SFDR6 ESE of ISFSI 0.1 ESE SFDR7 CCNPP Visitor's Center 0.8 N SFDR8 NNW of ISFSI 0.1 NNW SFDR9 SSE of ISFSI 0.1 SSE SFDR1O NW of ISFSI 0.1 NW SFDR1 I WNW of ISFSI 0.1 WNW SFDR12 WSW of ISFSI 0.04 WSW SFDR13 South of ISFSI 0.1 S SFDR14 SE of ISFSI ,0.1 SE SFDR15 ENE of ISFSI 0.1 ENE SFDR16 SSW of ISFSI 0.04 SSW SFDR17 NNE of ISFSI 0.1 NNE SFDR18 West of ISFSI 0.04 W DR7' On Site before Entrance to Camp Conoy 0.3 ESE DR30 Meteorological Station 0.3 NW Vegetation SFbl Meteorological Station 0.3 NW SFb2 CCNPP Visitor's Center 0.8 N SFb3 NNW of ISFSI 0.1 NNW SFb4 SSE of ISFSI 0.1 SSE SFb5 On Site before Entrance to Camp Conoy 0.3 ESE Soil _

SFS1 Meteorological Station 0.3 NW SFS2 CCNPP Visitor's Center 0.8 N SFS3 NNW of ISFSI 0.1 NNW SFS4 SSE of ISFSI 0.1 SSE SFS5 On Site before Entrance to Camp Conoy- 0.3 ESE

' Distance and direction from the central point of the ISFSI 2 Common to both REMP and ISFSI monitoring program 43

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 44

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE A-4 Independent Spent Fuel Storage Installation Sampling Locations t~

(.

-7 45

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 46

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 FIGURE A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations 47

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 48

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 APPENDIX B Analysis Results for the REMP and the ISFSI Appendix B is a presentation of the analytical results for the CCNPP and the ISFSI radiological environmental monitoring programs.

49

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page B-1 Concentration of Tritium and Gamma Emitters in Bay Water ........................................... 51 B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish ........................................... 52 B-3 Concentration of Gamma Emitters in Oyster Samples ...................................................... 53 B-4 Concentration of Gamma Emitters in Shoreline Sediment .................................................. 54 B-5 Concentration of Iodine-131 in Filtered Air ...................................................................... 55 B-6 Concentration of Beta Emitters in Air Particulates ............................................................. 57 B-7 Concentration of Gamma Emitters in Air Particulates ...................................................... 61 B-8 Concentration of Gamma Emitters in Vegetation From Locations Around the ISFSI ..... 62 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-i1 Typical LLDs for Gamma Spectrometry ................................................................................ 66 B -12 D irect R adiation ....................................................................................................................... 67 50

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B-1 Concentration of Tritium and Gamma Emitters in Bay Water (Results in units of pCi/L +/- 2cr)

Sample Code Sample Cs-1 37 H-3 1 Gamma Emitters Date z

Wal 1/31/2008 "*

2 Intake Vicinity 2/29/2008 2

3/31/2008 <353 2

4/30/2008 2

5/30/2008 2

7/1/2008 288 +/- 174 2

7/31/2008 "*

2 8/29/2008 2

9/29/2008 <294 "*

2 10/31/2008 2

12/1/2008 2

  • /

12/30/2008 <283 2 */

Wa2 1/31/2008 2

Discharge Vicinity 2/29/2008 2

3/31/2008 <353 2

4/30/2008 2

5/30/2008 2

7/1/2008 435 +/-176 2

7/31/2008 8/29/2008 4 +/- 2 9/29/2008 3 +/- 2 392 +/-180 2

10/31/2008 2

12/1/2008 2.

12/30/2008 356 +/- 1 8 1 '3) 1Quarterly composites of monthly samples 2 This Isotope < MDA 3 Error estimated from errors of analyses of same count times and efficiencies.

  • All Non-Natural Gamma Emitters <MDA 51

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish (Results in units of pCi/kg (wet) +/- 2a)

SAMPLE CODE Sample Sample Type Gamma Emitters Date lal 8/19/2008 Perch Discharge Area la2 8/19/2008 Bluefish Discharge Area la4 1 8/19/2008 Perch Patuxent River la5 1 8/19/2008 Bluefish Patuxent River Control Location

  • All Non -Natural Gamma Emitters <MDA 52

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B-3 Concentration of Gamma Emitters in Oyster Samples (Results in units of pCi/kg (wet) +/- 2c)

SAMPLE CODE Sample Gamma Emitters Date la3 3/18/2008

  • Camp Conoy 6/18/2008
  • 8/19/2008
  • 10/29/2008
  • la6' 3/18/2008
  • Kenwood Beach 6/18/2008
  • 8/19/2008
  • 10/29/2008
  • Control Location
  • All Non -Natural Gamma Emitters <MDA 53

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B-4 Concentration of Gamma Emitters in Shoreline Sediment (Results in units of pCi/kg (dry) +/- 2a)

SAMPLE CODE Sample Gamma Emitters Date Wbl 4/3/2008

  • Shoreline at Barge Rd. 10/8/2008 *
  • All Non -Natural Gamma Emitters <MDA 54

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 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' Entrance to Camp Conoy Bay Breeze Route 765 at EOF Camp Conoy Siren Rd Lusby 12/31/2007 1/7/2008

  • * *(
  • 1/7/2008 1/14/2008 1/14/2008 1/21/2008 1/21/2008 1/28/2008 "*

1/28/2008 2/4/2008 2/4/2008 2/11/2008 2/11/2008 2/18/2008 2/18/2008 2/25/2008 2/25/2008 3/3/2008 3/3/2008 3/10/2008 3/10/2008 3/17/2008 3/17/2008 3/24/2008 3/24/2008 3/31/2008 3/31/2008 4/7/2008 *k 4/7/2008 4/14/2008 4/14/2008 4/21/2008

  • * *A
  • 4/21/2008 4/28/2008 4/28/2008 5/5/2008
  • 2
  • 5/5/2008 5/12/2008 5/12/2008 5/19/2008 5/19/2008 5/26/2008 5/26/2008 6/2/2008 6/2/2008 6/9/2008 6/9/2008 6/16/2008 6/16/2008 6/23/2008 6/23/2008 6/30/2008 Control Location 2 Sampler Malfunction; Loss of Data
  • All Non-Natural Gamma Emitters <MDA 55

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B Continued Concentration of Iodine-131 in Filtered Air (Results in units of 10-3 pCi/m 3 +/- 2a)

Start Date Stop Date Al A2 A3 A4 A5' Entrance to Camp Conoy Bay Breeze Route 765 at EOF.

Camp Conoy Siren Rd Lusby 6/30/2008 7/7/2008 7/7/2008 7/14/2008 7/14/2008 7/21/2008 7/21/2008 7/28/2008 7/28/2008 8/4/2008 8/4/2008 8/11/2008 8/11/2008 8/18/2008 8/18/2008 8/25/2008

  • 8/25/2008 9/1/2008 9/1/2008 9/8/2008 9/8/2008 9/15/2008 9/15/2008 9/22/2008 9/22/2008 9/29/2008 9/29/2008 10/6/2008 *A 10/6/2008 10/13/2008 *k 10/13/2008 10/20/2008
  • *I 10/20/2008 10/27/2008 10/27/2008 11/3/2008 11/3/2008 11/10/2008 11/10/2008 11/17/2008
  • * "k
  • 11/17/2008 11/24/2008 11/24/2008 12/1/2008 12/1/2008 12/8/2008 12/8/2008 12/15/2008 12/15/2008 12/22/2008
  • *k 12/22/2008 12/29/2008 Control Location
  • All Non-Natural Gamma Emitters < MDA 56

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B-6 Concentration of Beta Emitters in Air Particulates (Results in units of 10.2 pCi/m 3 +/- 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 12/31/2007 1/7/2008 2.6 +/- 0.2 2.6 +/- 0.2 2.5 +/- 0.2 2.6 +/- 0.2 3.0 +/- 0.2 1/7/2008 1/14/2008 1.3 +/-0.2 1.3 +/- 0.2 1.3 +/- 0.2 1.7 +/- 0.2 1.4 +/- 0.2 1/14/2008 1/21/2008 1.6 +/-0.2 1.6 +/- 0.2 1.4 +/- 0.2 1.8 +/- 0.2 1.6 +/-0.2 1/21/2008 1/28/2008 2.7 +/- 0.2 2.5 +/- 0.2 2.6 +/- 0.2 2.8 +/- 0.2 2.8 +/- 0.2 1/28/2008 2/4/2008 2.3 +/- 0.3 2.3 +/- 0.2 2.1 +/-0.2 2.7 +/- 0.3 3.0 +/- 0.3 2/4/2008 2/11/2008 1.8 +/- 0.2 1.7 +/- 0.2 1.6 +/- 0.2 1.8 +/- 0.2 1.7 +/- 0.2 2/11/2008 2/18/2008 2.5 +/- 0.2 2.5 +/- 0.2 2.3 +/- 0.2 2.8 +/- 0.2 2.6+/-0.2 2/18/2008. 2/25/2008 1.5 +/- 0.2 1.6 +/- 0.2 1.5 +/-0.2 1.8 +/- 0.2 1.6 +/- 0.2 2/25/2008 3/3/2008 2.0 +/- 0.2 1.6 +/- 0.2 1.8 +/-0.2 2.0 +/- 0.2 1.9 +/- 0.2 3/3/2008 3/10/2008 1.4 +/- 0.2 1.1 +/-0.2 1.3 +/-0.2 1.5 +/-0.2 1.4 +/- 0.2 3/10/2008 3/17/2008 2.0 +/- 0.2 1.9 +/- 0.2 2.1 +/-0.2 2.3 +/- 0.2 2.1 +/-0.2 3/17/2008 3/24/2008 1.8 +/- 0.2 1.6 +/- 0.2 1.8 +-/- 0.2 2.0 +/- 0.2 1.7 +/- 0.2 3/24/2008 3/31/2008 2.2 +/- 0.2 2.1 +/-0.2 2.1 +/-0.2 2.5 +/- 0.3 2.4 +/- 0.3 3/31/2008 4/7/2008 1.0 +/- 0.2 1.4 +/- 0.2 1.3 +/- 0.2 1.1 +/-0.2 1.1 +/-0.2 4/7/2008 4/14/2008 0.8 +/- 0.2 0.5 +/- 0.2 0.6 +/- 0.2 0.8 +/- 0.2 0.9 +/- 0.2 4/14/2008 4/21/2008 1.9 +/- 0.2 2.0 +/- 0.2 1.8 +/- 0.2 2.0 +/- 0.2 1.8 +/- 0.2 4/21/2008 4/28/2008 1.2 +/- 0.2 1.9 +/- 0.3 1.8 t/- 0.2 1.3 +/- 0.2 1.4 +/- 0.2 1.5 +/- 0.2 4/28/2008 5/5/2008 1.5 +/-0.2 1.6 +/- 0.2 1.7 +/- 0.2 2.1 +/-0.2 2

5/5/2008 5/12/2008 1.2 +/-0.2 0.9 +/- 0.2 0.8 +/- 0.2 1.4 +/- 0.2 5/12/2008 5/19/2008 1.3 +/-0.2 1.0 +/- 0.3 1.0 +/- 0.2 1.0 +/- 0.2 1.4 +/- 0.2 5/19/2008 5/26/2008 0.8 +/- 0.1 0.5 +/- 0.1 0.6 +/- 0.1 0.6 +/-.0.1 0.6 +/- 0.1 5/26/2008 6/2/2008 1.3 +/-0.2 1.0 +/- 0.2 0.8+/-0.2 1.2 +/-0.2 1.2 t/- 0.2 6/2/2008 6/9/2008 1.4 +/- 0.2 1.1 +/-0.2 1.1 +/-0.2 1.2 +/-0.2 1.1 +/-0.2 6/9/2008 6/16/2008 1.6 +/- 0.2 1.2 +/-0.2 1.4 +/- 0.2 1.6 +/-0.3 1.9 +/- 0.3 6/16/2008 6/23/2008 0.9 +/- 0.2 0.9 +/- 0.2 0.8 +/- 0.2 0.9 +/- 0.2 1.3 +/- 0.2 6/23/2008 6/30/2008 1.9 +/- 0.2 1.9 +/- 0.2 1.6 +/- 0.2 2.0 +/- 0.2 2.2 +/- 0.3 1Control Location 2 Sampler Malfunction; Loss of Data 57

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B Continued Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/m 3 +/- 2y)

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 6/30/2008 7/7/2008 1.3+/-0.2 1.1 +/-0.2 1.1 +/-0.2 1.7+/-0.2 1.4+/-0.2 7/7/2008 7/14/2008 0.7+/-0.2 1.3+/-0.2 1.0 +/-0.2 1.2 +/-0.2 1.5 +/-0.3 7/14/2008 7/21/2008 1.9+/-0.2 1.7+/-0.2 1.9+/-0.2 2.0+/-0.2 2.2+/-0.3 7/21/2008 7/28/2008 1.7+/-0.2 1.4+/-0.2 1.6+/-0.2 1.6+/-0.2 2.2+/-0.3 7/28/2008 8/4/2008 2.3 +/-0.2 2.1 +/-0.2 2.1 +/-0.2 1.7 +/-0.2 2.9 +/-0.3 8/4/2008 8/11/2008 1.5+/-0.2 1.5+/-0.2 1.6+/-0.2 1.4+/-0.2 2.2+/-0.3 8/11/2008 8/18/2008 2.2+/-0.2 1.7+/-0.2 1.6+/-0.2 1.7+/-0.2 2.0+/-0.3 8/18/2008 8/25/2008 2.0+/-0.2 1.9+/-0.3 1.9+/-0.3 2.0+/-0.3 2.3+/-0.3 8/25/2008 9/1/2008 1.4+/-0.3 1.4+/-0.3 1.3+/-0.2 1.5+/-0.3 1.4+/-0.3 9/1/2008 9/8/2008 2.1 +/-0.2 2.2 +/-0.2 1.9 +/-0.2 1.8 +/-0.2 2.6 +/-0.3 9/8/2008 9/15/2008 1.9+/-0.3 1.5+/-0.2 1.5+/-0.2 1.9+/-0.3 2.0+/-0.3 9/15/2008 9/22/2008 1.6 +/-0.2 1.2+/-0.2 1.6 +/-0.3 1.4 +/-0.2 1.7 +/-0.3 9/22/2008 9/29/2008 1.4 +/-0.2 1.5 +/-0.2 1.3 +/-0.2 1.7 +/-0.2 1.6 +/-0.2 9/29/2008 10/6/2008 1.5+/-0.3 1.5+/-0.3 1.2+/-0.3 1.5+/-0.3 1.6+/-0.3 10/6/2008 10/13/2008 2.9 +/-0.3 2.6 +/-0.2 2.6 +/-0.3 2.8 +/-0.3 2.5 +/-0.2 10/13/2008 10/20/2008 3.5 +/-0.3 2.9+/- 0.3 3.6 +/-0.3 3.7 +/-0.3 2.4 +/-0.2 10/20/2008 10/27/2008 1.8+/-0.3 1.5+/-0.3 1.7+/-0.3 1.5+/-0.2 1.4 +/- 0.2 10/27/2008 11/3/2008 2.8+/-0.3 2.6+/-0.3 2.9+/-0.3 2.6+/-0.3 2.3+/-0.2 11/3/2008 11/10/2008 1.9 +/-0.2 1.8 +/-0.3 1.7 +/-0.3 1.7 +/-0.2 1.5 +/-0.2 11/10/2008 11/17/2008 1.1 +/-0.2 1.2+/-0.2 1.3+/-0.3 1.2+/-0.2 1.5+/-0.3 11/17/2008 11/24/2008 1.8+/-0.2 1.4+/-0.2 1.8+/-0.3 1.6+/-0.3 1.5+/-0.2 11/24/2008 12/1/2008 2.5+/-0.3 2.5+/-0.3 3.0+/-0.3 3.1 +/-0.3 2.8+/-0.3 12/1/2008 12/8/2008 2.0+/-0.3 1.9+/-0.3 2.1 +/-0.3 2.0+/-0.3 1.8+/-0.2 12/8/2008 12/15/2008 1.9+/-0.3 1.6+/-0.3 1.8+/-0.3 1.8+/-0.3 1.7+/-0.2 12/15/2008 12/22/2008 1.3+/-0.2 1.5+/-0.2 2.2+/-0.3 1.5+/-0.2 1.4+/-0.2 12/22/2008 12/29/2008 4.1 +/- 0.3 3.9 +/- 0.3 4.2 +/- 0.4 3.8 +/- 0.3 3.4 +/- 0.3 Control Location 58

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B Continued Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/M3 +/- 2a)

Start Date Stop Date SFA1 SFA21 SFA3 SFA4 MET Station Visitors Center NNW of ISFSI SSE of ISFSI 12/31/2007 1/7/2008 2.8 +/- 0.2 3.0 +/- 0.2 3.3 +/- 0.2 2.8 +/- 0.2 1/7/2008 1/14/2008 1.4 +/- 0.2 1.4 +/- 0.2 1.6 +/- 0.2 1.5 +/-0.2 1/14/2008 1/21/2008 1.6 +/- 0.2 1.5 +/- 0.2 1.8 +/- 0.2 1.6 +/- 0.2 1/21/2008 1/28/2008 2.8+/-0.2 2.9 +/- 0.2 3.2 +/- 0.2 2.9 +/- 0.2 1/28/2008 2/4/2008 2.0 +/- 0.2 2.6 +/- 0.2 2.9 +/- 0.3 2.3 +/- 0.3 2/4/2008 2/11/2008 1.8 +/- 0.2 1.9 +/- 0.2 1.9 +/-0.2 2.0 +/- 0.2 2/11/2008 2/18/2008 2.3 +/- 0.2 2.6 +/- 0.2 2.8 +/- 0.2 2.8 +/- 0.2 2/18/2008 2/25/2008 1.8 +/- 0.2 1.6 +/- 0.2 2.0 +/- 0.2 1.6 +/- 0.2 2/25/2008 3/3/2008 1.8 +/- 0.2 2.4 +/- 0.2 2.3 +/- 0.2 2.0 +/- 0.2 3/3/2008 3/10/2008 1.1 +/-0.2 1.2 +/-0.2 1.3 +/- 0.2 1.5 +/- 0.2 3/10/2008 3/17/2008 2.2 +/- 0.2 1.7 +/-0.2 1.9 +/- 0.2 2.4 +/- 0.2 3/17/2008 3/24/2008 1.6 +/- 0.2 1.9 +/- 0.2 1.8+/-0.2 1.7 +/- 0.2 3/24/2008 3/31/2008 2.1 +/-0.2 2.5+/-0.3 2.5 +/- 0.2 2.3 +/- 0.2 3/31/2008 4/7/2008 1.0 +/- 0.2 1.2 +/- 0.2 1.1 +/-0.2 1.0 +/-0.2 4/7/2008 4/14/2008 0.8 +/- 0.2 0.6 +/- 0.2 0.8 +/- 0.2 0.8 +/- 0.2 4/14/2008 4/21/2008 1.4 +/- 0.2 1.5 +/-0.2 1.6 +/- 0.2 2.0 +/- 0.2 4/21/2008 4/28/2008 1.6 +/-0.2 1.7 +/-0.2 1.5 +/- 0.2 1.5 +/- 0.2 4/28/2008 5/5/2008 1.9 +/- 0.2 2.0 +/- 0.2 1.8 +/- 0.2 1.7 +/- 0.2 5/5/2008 5/12/2008 1.2 +/- 0.2 1.0 +/- 0.2 1.4 +/-0.2 1.3 +/- 0.2 5/12/2008 5/19/2008 1.1 +/-0.2 1.5 +/- 0.2 1.1 +/-0.2 1.1 +/-0.2 5/19/2008 5/26/2008 0.9 +/- 0.2 1.2 +/- 0.2 1.0 +/- 0.2 1.5 +/- 0.3 5/26/2008 6/2/2008 0.6 +/- 0.1 0.5 +/- 0.1 0.5 +/- 0.1 0.6 +1- 0.1 6/2/2008 6/9/2008 1.7 +/-0.2 1.5 +/-0.2 1.4 +/- 0.2 1.6 +/- 0.2 6/9/2008 6/16/2008 1.5 +/-0.3 1.4 +/- 0.2 1.7 +/- 0.2 1.5 +/- 0.2 6/16/2008 6/23/2008 1.2 +/- 0.2 1.3 +/- 0.2 1.0 +/- 0.2 1.2 +/- 0.2 6/23/2008 6/30/2008 2.0 +/- 0.3 2.0 +/- 0.2 1.9 +/-0.2 2.0 +/- 0.2 Control Location 59

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B Continued Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/m3 of1+~/rn+- 2a)

Start Date Stop Date SFA1 SFA2 1 SFA3 SFA4 MET Station Visitors Center NNW of ISFSI SSE of ISFSI 6/30/2008 7/7/2008 1.4 +/- 0.2 .1.4 +/-0.2 1.3 +/- 0.2 1.4 +/-0.2 7/7/2008 7/14/2008 1.6 +/- 0.2 1.1 +/-0.2 1.4 +/- 0.2 0.9 +/- 0.2 7/14/2008 7/21/2008 2.3 +/- 0.2 2.0 +/- 0.2 2.1 +/-0.2 2.3 +/- 0.2 7/21/2008 7/28/2008 1.7 +/- 0.3 1.8 +/- 0.2 1.8 +/- 0.2 1.5 +/-0.3 7/28/2008 8/4/2008 1.9 +/- 0.3 2.4 +/- 0.2 2.0 +/- 0.2 2.4 +/- 0.2 8/4/2008 8/11/2008 1.5 +/- 0.2 2.0 +/- 0.2 1.9 +/- 0.3 1.6 +/-0.2 8/11/2008 8/18/2008 2.1 +/-0.3 2.0 +/- 0.3 2.1 +/- 0.2 1.9 +/- 0.3 8/18/2008 8/25/2008 2.4 +/- 0.3 2.2 +/- 0.3 1.5 +/- 0.2 2.0 +/- 0.3 8/25/2008 9/1/2008 1.6 +/- 0.4 1.4 +/- 0.3 1.5 +/- 0.3 1.3 +/- 0.3 9/1/2008 9/8/2008 2.6 +/- 0.3 2.0 +/- 0.2 1.8 +/-0.2 2.3 +/- 0.2 9/8/2008 9/15/2008 2.3 +/- 0.3 2.1 +/-0.3 1.8 +/-0.3 2.4 +/- 0.3 2

9/15/2008 9/22/2008 2.0 +/- 0.3 1.8 +/- 0.3 1.7 +/-0.2 9/22/2008 9/29/2008 1.6 +/- 0.2 1.3 +/- 0.2 1.3 +/-0.2 1.6 +/- 0.2 9/29/2008 10/6/2008 1.7 +/- 0.3 1.9 +/- 0.3 1.9 +/-0.3 1.5 +/- 0.3 10/6/2008 10/13/2008 3.0 +/- 0.3 3.0 +/- 0.3 3.0 +/- 0.3 3.9 +/- 0.4 10/13/2008 10/20/2008 3.3 +/- 0.4 3.0 +/- 0.3 3.3 +/- 0.3 4.0 +/- 0.4 10/20/2008 10/27/2008 1.6 +/- 0.3 1.5 +/- 0.3 1.7 +/- 0.3 1.9 +/- 0.3 10/27/2008 11/3/2008 3.0 +/- 0.3 2.7 +/- 0.3 2.5 +/- 0.3 3.1 +/-0.3 11/3/2008 11/10/2008 1.7 +/-0.3 1.7 +/-0.2 1.9 +/- 0.3 1.8 +/-0.3 11/10/2008 11/17/2008 1.2 +/-0.2 1.3 +/-0.2 1.2 +/- 0.2 1.0 +/- 0.2 11/17/2008 11/24/2008 1.8 +/- 0.3 1.8 +/-0.2 18 +/- 0.2 1.5 +/- 0.2 11/24/2008 12/1/2008 2.7 +/- 0.3 1.9 +/- 0.2 2.1 +/-0.2 2.1 +/-0.3 12/1/2008 12/8/2008 2.0+/-0.3 2.0 +/- 0.3 2.1 +/-0.3 1.9 +/- 0.3 12/8/2008 12/15/2008 1.7 +/- 0.3 2.1 +/-0.3 1.7 +/-0.3 1.5 +/- 0.3 12/15/2008 12/22/2008 1.3 +/- 0.2 1.8 +/- 0.3 1.0 +/- 0.2 1.5 +/- 0.2 12/22/2008 12/29/2008 3.9+/-0.3 5.3 +/- 0.4 3.4 +/- 0.3 3.7 +/- 0.3 Control Location 2 Sampler Malfunction; Loss of Data 60

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B-7 Concentration of Gamma Emitters in Air Particulates (Results in units of io03 pCi/m3 +/- 2a)

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

  • I *
  • 1/15/2008 "*
  • t *
  • 2/15/2008 3/15/2008 4/15/2008 *I 5/15/2008 "*

6/15/2008 *I 7/15/2008 8/15/2008 *t 9/15/2008 *t 10/15/2008 11/15/2008 *t 12/15/2008 Control Location

  • All Non-Natural Gamma Emitters <MDA Sample SFA1 SFA2 1 SFA3 SFA4 Date MET Station Visitors Center NNW of ISFSI SSE of ISFSI 1/15/2008 ....

2/15/2008 ....

3/15/2008 ....

4/15/2008 .... *"

5/15/2008 ....

6/15/2008 ....

7/15/2008 ....

8/15/2008 ....

9/15/2008 ....

10/15/2008 ....

11/15/2008 ....

12/15/2008 ....

Control Location

  • All Non-Natural Gamma Emitters <MDA 61

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B-8 Concentration of Gamma Emitters in Vegetation From Locations Around the IFSFI (Results in units of pCi/kg (wet) +/- 2a)

SAMPLE CODE Sample Sample Type Cs-137 1 Gamma Emitters Date Ibl 7/27/2008 Squash Bay Breeze Rd 8/25/2008 Tree Leaves *k 9/29/2008 Brussels sprouts 10/26/2008 Tree Leaves Ib2 7/27/2008 Cabbage Bay Breeze Rd 8/25/2008 Tree Leaves 9/29/2008 Cabbage 10/26/2008 Tree Leaves Ib3 7/27/2008 Collards

  • A Bay Breeze Rd 8/25/2008 Tree Leaves 9/29/2008 Collards "*

10/26/2008 Tree Leaves

  • k Ib4 7/27/2008 Tree Leaves Camp Conoy 8/25/2008 Tree Leaves Entrance 9/29/2008 Tree Leaves 12 +/-9 10/26/2008 Tree Leaves Ib5 7/27/2008 Cabbage Camp Conoy 8/25/2008 Tree Leaves 26 +/- 15 Entrance 9/29/2008 Tree Leaves 19 +/- 15 10/26/2008 Tree Leaves Ib6 7/27/2008 Collards Camp Conoy 8/25/2008 Tree Leaves
  • Entrance 9/29/2008 Collards 10/26/2008 Tree Leaves 56 +/- 17
  • Ib7 2 7/27/2008 Collards EOF 8/25/2008 Tree Leaves 9/29/2008 Collards 10/26/2008 Broccoli 1

Ib8 2 7/27/2008 Tree Leaves 1 EOF 8/25/2008 Tree Leaves 1 9/29/2008 Squash 1 10/26/2008 Cauliflower Ib9 2 I

7/27/2008 Tree Leaves I EOF 8/25/2008 Tree Leaves 1 9/29/2008 Brussels sprouts 1 10/26/2008 Brussels sprouts

  • This isotope <MDA 2 Control Location
  • All Non-Natural Gamma Emitters <MDA 62

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B Continued Concentration of Gamma Emitters in Vegetation From Locations Around the ISFSI (Results in units of pCi/kg (wet) +/- 2a)

SAMPLE CODE Sample Cs-1 37 Gamma Emitters Date I

SFb1 3/9/2008 1 MET Station 6/9/2008 1 -*

9/8/2008 1 12/1/2008 *"

1 SFb2 2 3/9/2008 1

  • /

Visitor's Center 6/9/2008 1 9/8/2008 1 "*

12/1/2008

  • /

SFb3 3/9/2008 "*

NNW of ISFSI 6/9/2008 9/8/2008 12/1/2008 SFb4 3/9/2008 81 +/- 34 SSE of ISFSI 6/9/2008 9/8/2008 12/1/2008 SFb5 3/9/2008 On Site before Entrance 6/9/2008 to Camp Conoy 9/8/2008 63 +/- 15 12/1/2008 19 +/- 11 I This isotope <MDA 2 Control Location

  • All Non-Natural Gamma Emitters <MDA 63

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B-9 Concentration of Gamma Emitters in Soil Samples From Locations Around the ISFSI (Results in units of pCi/kg (dry) +/- 2a)

SAMPLE CODE Sample Cs-137 Gamma Emitters Date

! */

SFS1 3/9/2008 1 MET station 6/9/2008 1 9/8/2008 1 12/1/2008 2

SFS2 3/9/2008 Visitors Center 6/9/2008 50 +/-

1 35

  • 9/8/2008 12/1/2008 125 +/-48 SFS3 3/9/2008 304 +/- 53 NNW of ISFSI 6/9/2008 163 +/-49 9/8/2008 31 +/- 39 12/1/2008 58 +/- 50 639 +/- 76 SFS4 3/9/2008 SSE of ISFSI 6/9/2008 9/8/2008 12/1/2008 SFS5 3/9/2008 342 +/-

1 77 Entrance to Camp 6/9/2008 Conoy 9/8/2008 209 +/- 31 12/1/2008 242 +/- 35

'This isotope <MDA 2 Control Location

  • All Non-Natural Gamma Emitters <MDA 64

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE B-10 Typical MDA Ranges for Gamma Spectrometry 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 1.6-3.8 21-29 18-30 28-29 16-37 33-95 1.3-3.4 Cr-51 12 -40 160- 166 118 - 176 208-213 14-164 203-486 13 - 39 Mn-54 1.4 - 3.2 16-20 15-22 26 - 30 13-28 32-81 1.2-6.2 Co-58 1.5-4.0- 20-23 16 -26 28-32 13- 26 28-79 1.4-3.4 Fe-59 3.5-11 53-74 36 -65 60-77 28-69 65-174 3.7-8.2 Co-60 1.5 -3.7 18-25 18 - 26 27-39 15 - 35 23-97 1.3-3.3 Zn-65 3.3-7.9 46 -62 36 - 57 69 - 97 32 - 73 67-238 3.0-6.9 Nb-95 1.7-5.8 25-31 20-35 34-40 13-27 34-93 2.1 -5.0 Zr-95 2.8-6.9 35 -44 29-43 45-62 21-48 53-141 2.1 -6.4 Ru-1 06 12 - 26 131-149 124 - 185 224-287 108-239 264-643 10-25 Ag-110m 1.2-2.9 15-18 15-18 21 - 31 11-25 29-88 0.1 -2.6 Te-129m .18-60 247 - 280 192 - 284 321-367 135-281 346-855 19-55 1-131 2.4-49 99- 121 30 - 89 50-52 11-37 32.7- 179 Cs-1 34 1.2-2.6 14 - 17 13-19 24-34.5 11 - 24 27-94 1.0-2.4 Cs-137 1.2-3.0 15-18 15 - 34 25-30 1.5-26 27-72 1.0-2.8 Ba-140 7.3 -66 174-208 75-184 138-150 41 -109 112-430 12 - 84 La-140 3.2-29 49-74 75-75 17-51 60-138 8.7-19 Ce-144 7.1 -12 45-49 42-49 101 -111 49 - 86 110-245 2.8-8.2 The MDA range for 1-131 on a silver zeolite cartridge is typically 4.16 x 10"3 to 3.40 x 10-2 65

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 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 10-3pCi/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 2A 16 16 17 2.0 2.4 25 17 2.4 Fe-59 5.2 37 37 38 4.6 5.2 60 38 5.2 Co-60 2.8 22 22 21 2.7 2.8 33 21 2.8 Zn-65 5.6 23 23 54 2.8 5.6 66 54 5.6 Nb-95 2.2 15 15 18 1.9 2.2 25 18 2.2 Zr-95 3.8 27 27 29 3.3 3.8 44 29 3.8 Ru-106 20 135 135 146 17 20 223 146 20 Ag-110m 2.1 14 14 16 1.8 2.1 25 16 2.1 Te-129m 26 149 149 180 20 26 265 180 26 1-131 2.0 11 11 14 1.5 2.0 20 14 2.0 Cs-134 2.2 15 15 20 1.9 2.2 24 20 2.2 Cs-137 2.3 15 15 17 1.8 2.3 27 17 2.3 Ba-140 7.3 48 48 54 6.1 7.3 80 54 7.3 La-140 4.1 26 26 25 3.4 4.1 41 25 4.1 Ce-144 12 43 43 75 5.5 12 101 75 12

  • The LLD for 1-131 measured on a Silver Zeolite cartridge is 2.0 x 10-3 pCi/m 3.

66

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 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 12.35 +/- 1.37 11.53 +1 3.25 14.11 +/- 0.53 13.39 +/- 1.21 DR02 Route 765, Auto Dump 10.24 +/- 0.84 10.15 +/- 0.80 10.37 +/- 0.92 10.85 +/- 0.79 DR03 Route 765, Giovanni's 10.09 +1- 1.36 10.45 +1- 1.64 10.91 +/-' 1.56 10.64 +/- 1.93 Tavern DR04 Route 765, across 11.56+/- 1.26 12.00+/- 0.99 12.79+/- 1.10 12.18 +/- 0.97 from White Sands Drive.

Route 765, John's DR05 11.58 +/- 1.20 11.92 +/- 1.09 11.87 +/- 0.87 12.17 +/- 0.44 Creek DR06 Route 765 at Lusby 9.10 +/- 1.11 10.04 +/- 0.78 10.22 +/- 1.37 10.74 +/- 1.66 DR07 Entrance to Camp 9.61 +/- 0.51 10.88 +/- 1.00 10.32 +/- 1.57 10.59 +/- 0.74 Conoy Camp Conoy Rd at DR08 13.47 +/- 0.90 14.52 +/- 0.50 15.16 +/- 2.24 15.06 +/- 1.02 Emergency Siren DR09 Bay Breeze Rd 10.27 +/- 0.64 11.33 +/- 1.30 11.10 +/- 1.26 11.57 +/- 1.24 DR10 Calvert Beach Rd and 9.83 +/- 0.54 10.77 +/- 1.35 10.51 +/- 1.17 11.18 +/- 0.90 Decatur Street DR11 Dirt road off Mackall & 9.97 +1- 0.53 10.36 +/- 1.08 10.48 +/- 0.97 10.78 +/- 0.69 Parran Rd DR12 Mackall & Bowen Rds 10.20 +/- 0.88 10.64 +/- 1.42 10.84 +/- 1.28 10.66 +/- 0.82

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B-12 Direct Radiation (Results in Units of mR/90 days +/- 2a)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter near Mackall Rd, DR13 Mackall Rd, near 10.62 +/- 1.54 11.98 +/- 1.17 11.93+/- 1.21 12.10 +/- 1.48 Wallville DR14 Rodney Point 12.59 +/- 0.98 12.92 +/- 1.05 13.40+/- 1.04 13.01 +/- 0.73 DR15 Mill Bridge & Turner 11.01 +/- 0.14 11.77 +/- 0.67 12.29 +/- 0.99 11.86 +/- 1.79 Rds DR16 Across from Appeal 9.83 +/- 1.01 11.15+/- 1.02 10.63 +/- 1.19 11.03 +/- 1.14 School DR17 Cove Point & Little 11.58 +/- 0.38 12.28 +/- 0.98 12.76 +/- 1.17 12.75 +/- 1.16 Cove Point Rds DR18 Cove Point 8.94 +/- 0.51 10.12 +/- 1.07 9.84 +/- 0.76 10.18 +/- 0.90 DR1 9 Long Beach 10.01 +/- 0.68 10.95 +/- 0.58 10.84 +/- 1.30 11.13 +/- 1.23 DR20 On site, near shore 12.07 +/- 0.98 12.94 +/- 1.63 12.79 +/- 1.54 13.11 +/- 1.02 DR21 1 EOF 11.85 +/- 1.21 12.20 +/- 1.42 12.41 +/- 1.13 12.53 +/- 0.36 Solomons Island 2 DR22 1 9.73 +/- 0.48 10.57 +/- 1.17 10.91 +/- 1.19 DR23 1 Taylors Island 16.28 +/- 0.95 14.29 +/- 1.21 16.48 +/- 1.59 15.09 +/- 1.68 DR30 MET Station 14.67 +/- 1.50 13.18 +/- 0.96 12.88 +/- 1.84 12.49 +/- 1.10 SFDR01 SW of ISFSI 15.30 +/- 1.61 16.04 +/- 2.32 17.36 +/- 1.76 16.58 +/- 1.54 SFDR02 NNW of ISFSI 19.63 +/- 2.83 19.64 +/- 1.38 20.63 +/- 0.86 19.30 +/- 1.68 1Control Location 2 Lost TLD 68

January I - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table B Continued Direct Radiation (Results in Units of mR/90 days +/- 2a)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter SFDR03 North of ISFSI 33.63 +/- 6.02 34.93 +/- 5.57 35.29 +/- 5.25 36.66 +/- 7.63 SFDR04 NE of ISFSI 30.26 +/- 5.32 29.51 +/- 4.61 24.22 +/- 3.39 32.37 +/- 5.61 SFDR05 East of ISFSI 17.65 +/- 1.56 19.55 +/- 2.26 17.70 +/- 3.39 17.70 +/- 3.38 SFDR06 ESE of ISFSI 14.86+/- 1.63 15.81 +/- 1.88 16.22 +/- 1.67 15.46 +/- 1.86 SFDR07 1 Visitor's Center 11.94+/- 0.85 12.51 +/- 0.95 12.83 +/- 1.54 12.07 +/- 0.90 SFDR08 NNW of ISFSI 27.34 +/- 5.80 29.28 +/- 4.17 30.18 +/- 5.11 28.30 +/- 4.93 SFDR09 SSE of ISFSI 13.48 +/- 2.07 15.01 +/- 0.73 14.51 +/- 2.26 13.95 +/- 0.73 2

SFDR10 NW of ISFSI 38.40 +/- 8.03 33.44 +/- 8.00 33.32 +/- 3.90 SFDR11 WNW ISFSI 29.30 +/- 3.64 22.68 +/- 2.72 24.95 +/- 3.17 26.11 +/- 4.80 SFDR12 WSW of ISFSI 28.94 +/- 5.01 31.02 +/- 4.24 33.81 +/- 10.67 36.04 +/- 7.30 SFDR13 South of ISFSI 21.54 +/- 5.97 21.50 +/- 4.64 22.86 +/- 6.82 22.11 +/- 5.80 SFDR14 SE of ISFSI 15.97 +/- 1.46 15.76 +/- 2.85 15.32 +/- 2.67 15.67 +/- 2.67 SFDR15 ENE of ISFSI 19.99 +/- 3.04 19.78 +/- 4.33 20.66 +/- 1.05 19.81 +/- 3.05 SFDR16 SSW of ISFSI 27.48 +/- 4.37 29.39 +/- 2.98 29.75 +/- 2.63 32.78 +/- 4.48 SFDR17 NNE of ISFSI 31.81 +/- 4.28 34.92 +/- 5.14 39.48 +/- 4.92 31.94 +/- 4.55 SFDR18 West of ISFSI 39.34 +/- 6.74 40.38 +/- 4.41 41.49 +/- 10.42 35.82 +/- 5.21 Control Location

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 70

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 APPENDIX C Quality Assurance Program Appendix C is a summary of Constellation Energy laboratory's quality assurance program. It consists of Table C-1 which is a compilation of the results of the Constellation Energy Laboratory's participation in an inter-lab comparison program with Environmental Resource Associates (ERA) located in Arvada, Colorado and Analytics, Inc. located in Atlanta, Georgia. It also includes Table C-2 which is a compilation of the results of the Constellation Energy Laboratory's participation in a split sample program with Teledyne Brown Engineering located in Knoxville, Tennessee and Table C-3 which is a list of typical MDAs achieved by Teledyne Brown for Gamma Spectroscopy.

All the Constellation Energy Laboratory's results contained in Table C-I generally agree with the inter-lab comparison laboratory's results within the range of +/-2 a of each other. In addition, all the sets of inter-lab comparison results in the table are in full agreement when they were further evaluated using the NRC Resolution Test Criteria'. The uncertainties for the Constellation Energy Laboratory's results and Analytics' results are +/-2a while the ERA laboratory's uncertainty is based on USEPA guidelines2.2 All the results contained in Table C-2 agree within the range of +/-2 0 of each other with their respective Constellation Energy Laboratory original, replicate and/or Teledyne Brown Engineering's split laboratory samples, except for the comparisons of two samples involving Cs-137 results: a soil sample from SFS2 collected 6/9/2008 and a vegetation sample from SFb5 collected 12/01/2008. In both cases low levels of Cs-137 were observed in two of the results of the comparison set and not observed in the third. These minor discrepancies, occurring very close to or below the analyses MDA's, are most probably due to counting statistical fluctuations and/or the non-homogeneous nature of the sample-splitting process. Other samples whose nature generally precludes sample splitting are marked "**" in the Split Analysis column.

1 NRC Inspection Manual, Inspection Procedure 84750, March 15, 1994 2 National Standards for Water Proficiency Testing Studies Criteria Document, December 1998 71

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page C-I Results of Participation in Inter-Lab Comparison Programs ............................................. 73 C-2 Results of Quality Assurance Program ............................................................................... 76 C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry ........................ 85 72

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C-1 Results of Participation in Inter-Lab Comparison Programs Sample Sample Type Isotope Reported Inter-Lab Date and Units Observed Laboratory's Lab Results 1 Results 1 1/07/08 Water-pCi/L Ba-133 23+/-4 26+/-4 Co-60 15+/-3 14+/-4 Cs-1 34 85+/-4 93+/-9 Cs-1 37 160+/-7 158+/-18 Zn-65 206+/-12 204+/-36 3/20/08 Milk-pCi/L 1-131 52+/-5 60+/-1 Cs-1 34 117+/-9 125+/-2 Cs-1 37 147+/-14 146+/-2 Ce-141 256+/-16 249+/-4 Cr-51 372+/-72 359+/-6 Mn-54 96+/-13 94+/-2 Co-58 73+/-12 71+/-1 Fe-59 114+/-17 102+/-2 Co-60 258+/-14 236+/-4 Zn-65 143+/-27 137+/-2 Charcoal 3/20/08 1-131 70+/-5 60+/-1 Cartridge-pCi 3/20/08 Water-pCi/L Gross 03 184+/-3 209+/-3 3/20/08 Filter-pCi/filter Gross 13 70+/-2 66+/-1 4/07/08 Water-pCi/L 1-131 28+/-2 29+/-5 6/19/08 Water-pCi Gross f3 177+/-3 169+/-3 6/19/08 Water-pCi/L 1-131 52+/-17 45+/-1 Cs-134 97+/-8 104+/-2 Cs-1 37 171+/-14 158+/-3 Ce-141 254+/-20 237+/-4 Co-58 88+/-12 84+/-4 Fe-59 135+/-17 125+/-2 Cr-51 216+/-88 188+/-3 Co-60 148+/-10 142+/-2 Mn-54 208+/-15 184+/-3 Zn-65 183+/-23 172+/-3 1See discussion at the beginning of the Appendix.

73

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C Continued Results of Participation in Inter-Lab Comparison Programs Sample Sample Type Isotope Reported Inter-Lab Date and Units Observed Laboratory's Lab Results1 Results1 6/19/08 Filter-pCi/filter Ce-1 41 264+/-10 243+/-4 Cr-51 237+/-49 192+/-3 Cs-134 81+/-6 107+/-2 Cs-137 161+/-11 162+/-3 Mn-54 205+/-13 188+/-3 Fe-59 115+/-14 128+/-2 Zn-65 203+/-23 176+/-3 Co-60 158+/-9 145+/-2 Co-58 80+/-9 86+/-1 7/07/08 Water-pCi/L Ba-1 33 42+/-4 47+/-5 Cs-134 83+/-3 93+/-9 Cs-137 54+/-5 55+/-9 Zn-65 106+/-10 99+/-19 Co-60 26+/-3 26+/-5 7/07/08 Water-pCi/L Gross p 17+/-1 26+/-8 2

8/15/08 Water-pCi/L Tritium 134 152 9/23/08 Filter-pCi/filter Gross 13 60+/-2 87+/-1 9/22/08 Filter-pCi/filter Cs-134 613+/-13 623+/-148 Cs-137 920+/-27 761+/-239 Co-60 507+/-17 425+/-106 Zn-65 628+/-40 452+/-174 10/06/08 Water-pCi/L 1-131 27+/-4 28+/-5 12/11/08 Charcoal 1-131 70+/-8 54+/-2 Cartridge-pCi See discussion at the beginning of the Appendix 2 Tritium sample and inter-laboratory analysis performed by Calvert Cliffs Chemistry Operations Laboratory 74

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C Continued Results of Participation in Inter-Lab Comparison Programs Sample Sample Type Isotope Reported Inter-Lab Date and Units Observed Laboratory's Lab Results1 Results 1 12/11/08 Milk-pCi/L 1-131 69+/-21 80+/-1 Ce-141 171+/-23 191+/-3 Cr-51 219+/-116 246+/-4 Cs-1 34 111+/-11 134+/-2 Cs-1 37 120+/-16 120+/-2 Co-58 99+/-16 104+/-2 Mn-54 152+/-18 152+/-3 Fe-59 99+/-22 100+/-2 Zn-65 168+/-34 183+/-3 Co-60 128+/-13 133+/-2 12/11/08 Filter-pCi/filter Ce-141 179+/-8 159+/-3 Cr-51 225+/-49 204+/-3 Cs-1 34 92+/-5 111+/-2 Cs-1 37 103+/-9 99+/-2 Co-58 85+/-9 86+/-1 Mn-54 129+/-10 126+/-2 Fe-59 94+/-12 83+/-1 12/11/08 Water-pCi/L Gross [3 211+/-3 204+/-3

'See discussion at the beginning of the Appendix 75

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C-2 Results of Quality Assurance Program Sample Type Sample Type of Original Replicate Split And Location Date Analysis Analysis Analysis Analysis 10-1 pCi/m3 Air Iodine-SFA3 1/08/08 1-131 <MDA <MDA **

Air Iodine-SFA4 1/08/08 1-131 <MDA <MDA **

Air Filter -Al 1/08/08 Beta 2.6+/-0.2 2.7+/-0.2 **

Air Filter -A2 1/08/08 Beta 2.6+/-0.2 2.6+/-0.3 **

Air Filter -A3 1/08/08 Beta 2.5+/-0.2 2.5+/-0.2 **

Air Filter -A4 1/08/08 Beta 2.6+/-0.2 2.8+/-0.2 **

Air Filter -A5 1/08/08 Beta 3.0+/-0.2 2.9+/-0.2 \ **

Air Filter -SFAl 1/08/08 Beta 2.8+/-0.2 2.7+/-0.2 **

Air Filter -SFA2 1/08/08 Beta 3.1+/-0.2 2.9+/-0.2 **

Air Filter -SFA3 1/08/08 Beta 3.3+/-0.3 3.4+/-0.3 **

Air Filter -SFA4 1/08/08 Beta 2.8+/-0.2 2.9+/-0.2 **

10-2 pci/m3 Air Filter-Al' 2/11/08 Beta 2.3+/-0.3 2.4+/-0.3 **

Air Filter-A2 2/11/08 Beta 2.3+/-0.2 2.7+/-0.2 **

Air Filter-A3 2/11/08 Beta 2.1+/-0.2 2.1+/-0.2 **

Air Filter-A4 2/11/08 Beta 2.7+/-0.3 3.0+/-0.3 **

Air Filter-A5 2/11/08 Beta 3.1+/-0.3 3.3+/-0.3 **

Air Filter-SFA1 2/11/08 Beta 2.0+/-0.2 2.2+/-0.2 **

Air Filter-SFA2 2/11/08 Beta 2.6+/-0.2 2.6+/-0.2 **

Air Filter-SFA3 2/11/08 Beta 2.9+/-0.3 3.1+/-0.3 **

Air Filter-SFA4 2/11/08 Beta 2.3+/-0.2 2.5+/-0.3 **

Air Iodine-Al 2/04/08 1-131 <MDA <MDA **

Air Iodine-A2 2/04/08 1-131 <MDA <MDA **

pCi/L Bay Water-Wa2 2/29/08 Gamma <MDA <MDA <MDA

    • The nature of these samples precluded splitting them with an independent laboratory.

76

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C Continued Results of Quality Assurance Program Sample Type Sample Type of Original Replicate Split And Location Date Analysis Analysis Analysis Analysis 10-2 pCi/m3 Air Filter-Al 3/09/08 Beta 1.4+/-0.2 1.0+/-0.2 **

Air Filter-A2 3/09/08 Beta 1.1+/-0.2 1.2+/-0.2 **

Air Filter-A3 3/09/08 Beta 1.3+/-0.2 1.1+/-0.2 **

Air Filter-A4 3/09/08 Beta 1.6+/-0.2 1.4+/-0.2 **

Air Filter-A5 3/09/08 Beta 1.4+/-0.2 1.4+/-0.2 **

Air Filter-SFA1 3/09/08 Beta 1.1+/-0.2 1.0+/-0.2 **

Air Filter-SFA2 3/09/08 Beta 1.1+/-0.2 1.4+/-0.2 **

Air Filter-SFA3 3/09/08 Beta 1.3+/-0.2 1.3+/-0.2 **

Air Filter-SFA4 3/09/08 Beta 1.5+/-0.2 1.3+/-0.2 **

Air Iodine-Al 3/09/08 1-131 <MDA < MDA **

Air Iodine-A2 3/09/08 1-131 < MDA < MDA **

pCi/Kg Oysters-la3 3/18/08 Gamma <MDA <MDA <MDA 10-2 pCi/m3 Air Filter-Al 4/07/08 Beta 1.0+/-0.2 .0+/-0.2 **

Air Filter-A2 4/07/08 Beta 1.4+/-0.2 1.0+/-0.2 **

Air Filter-A3 4/07/08 Beta 1.3+/-0.2 1.1+/-0.2 **

Air Filter-A4 4/07/08 Beta 1.1+/-0.2 1.0+/-0.1 **

Air Filter-A5 4/07/08 Beta 1.1+/-0.2 1.1+/-0.2 **

Air Filter-SFA1 4/07/08 Beta 1.0+/-0.2 0.7+/-0.2 **

Air Filter-SFA2 4/07/08 Beta 1.2+/-0.2 1.0+/-0.2 **

Air Filter-SFA3 4/07/08 Beta 1.1+/-0.2 0.8+/-0.2 **

Air Filter-SFA4 4/07/08 Beta 1.0+/-0.2 0.8+/-0.2 **

pCi/L Bay Water-Wa2 4/30/08 Gamma <MDA <MDA <MDA

    • The nature of these samples precluded splitting them with an independent laboratory.

77

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C Continued Results of Quality Assurance Program Sample Type Sample Type of Original Replicate Split And Location Date Analysis Analysis Analysis Analysis 3

10.2 pCi/m Air Iodine-A4 4/07/08 1-131 <MDA <MDA **

Air Iodine-A5 4/07/08 1-131 <MDA <MDA **

Air Filters-Al 4/15/08 Gamma <MDA <MDA <MDA Air Filters-A2 4/15/08 Gamma <MDA <MDA <MDA Air Filters-A3 4/15/08 Gamma <MDA <MDA <MDA Air Filters-A4 4/15/08 Gamma <MDA <MDA <MDA Air Filters-A5 4/15/08 Gamma <MDA <MDA <MDA Air Filters-SFA1 4/15/08 Gamma <MDA <MDA <MDA Air Filters-SFA2 4/15/08 Gamma <MDA <MDA <MDA Air Filters-SFA3 4/15/08 Gamma <MDA <MDA <MDA Air Filters-SFA4 4/15/08 Gamma <MDA <MDA <MDA pCi/Kg Shoreline Wbl 4/03/08 Gamma <MDA <MDA <MDA 10-2 pCi/m3 Air Iodine-Al 5/05/08 1-131 <MDA <MDA **

Air Iodine-A2 5/05/08 1-131 <MDA <MDA **

Air Filter-Al 5/05/08 Beta 1.5+/-0.2 1.7+/-0.2 **

Air Filter-A2 5/05/08 Beta 1.6+/-0.2 1.3+/-0.2 **

Air Filter-A3 5/05/08 Beta 1.7+/-0.2 1.6+/-0.2 Air Filter-A4 5/05/08 Beta 1.5+/-0.2 1.7+/-0.2 **

Air Filter-A5 5/05/08 Beta 2.1+/-0.2 2.2+/-0.2 **

Air Filter-SFA1 5/05/08 Beta 1.9+/-0.2 1.7+/-0.2 **

Air Filter-SFA2 5/05/08 Beta 2.0+/-0.2 2.0+/-0.2 **

Air Filter-SFA3 5/05/08 Beta 1.8+/-0.2 1.8+/-0.2 **

Air Filter-SFA4 5/05/08 Beta 1.7+/-0.2 1.9+/-0.2 **

    • The nature of these samples precluded splitting them with an independent laboratory.

78

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C Continued Results of Quality Assurance Program Sample Type Sample Type of Original Replicate Split And Location Date Analysis Analysis Analysis Analysis pCi/Kg SoiI-SFS2 6/09/08 Cs-1 37 50+/-35 <MDA 54+/-36 SoiI-SFS5 6/09/08 Gamma <MDA <MDA 101+/-32 Vegetation-SFb2 6/09/08 Gamma <MDA <MDA <MDA Vegetation-SFb5 6/09/08 Gamma <MDA <MDA <MDA 3

10-2 pCi/m Air Iodine-SFA2 6/10/08 1-131 <MDA <MDA **

Air Iodine-SFA3 6/10/08 1-131 <MDA <MDA **

3 10-2 pCi/m Air Filter-Al 6/10/08 Beta 1.4+/-0.2 1.5+/-0.2 **

Air Filter-A2 6/10/08 Beta 1.1+/-0.2 1.2+/-0.2 **

Air Filter-A3 6/10/08 Beta 1.1+/-0.2 1.1+/-0.2 **

Air Filter-A4 6/10/08 Beta 1.2+/-0.2 1.1+/-0.2 **

Air Filter-A5 6/10/08 Beta 1.1+/-0.2 1.0+/-0.2 **

Air Filter-SFA1 6/10/08 Beta 1.6+/-0.2 1.5+/-0.2 **

Air Filter-SFA2. 6/10/08 Beta 1.5+/-0.2 1.4+/-0.2 Air Filter-SFA3 6/10/08 Beta 1.4+/-0.2 1.1+/-0.2 **

Air Filter-SFA4 6/10/08 Beta 1.6+/-0.2 1.4+/-0.2 **

mR/90 Days DR05 7/02/08 TLD 11.91+/-1.10 10.34+/-0.83 DR06 7/02/08 TLD 10.04+/-0.77 8.88+/-0.49 **

DR07 7/02/08 TLD 10.90+/-1.00 9.16+/-0.72 **

DR08 7/02/08 TLD 14.76+/-1.40 12.49+/-1.10 **

DR09 7/02/08 TLD 11.35+/-1.27 9.56+/-0.80 **

DR1 0 7/02/08 TLD 10.78+/-1.33 9.55+/-0.92 **

DR11 7/02/08 TLD 10.38+/-1.01 09.43+/-0.47 **

SFDR14 7/02/08 TLD 15.79+/-2.92 13.72+/-2.27 **

SFDR15 7/02/08 TLD 19.81+/-4.39 17.92+/-2.71 **

DR29 7/02/08 TLD 14.27+/-1.64 13.14+/-1.23 **

DR31 7/02/08 TLD 14.83+/-1.64 13.91+/-1.49

    • The nature of these samples precluded splitting them with an independent laboratory.

79

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C Continued Results of Quality Assurance Program Sample Type Sample Type of Original Replicate Split And Location Date Analysis Analysis Analysis Analysis 3

10-2 pCi/m Air Filter-Al 7/07/08 Beta 1.3+/-0.2 1.4+/-0.2 Air Filter-A2. 7/07/08 Beta 1.1+/-0.2 1.2+/-0.2 Air Filter-A3 7/07/08 Beta 1.1+/-0.2 1.3+/-0.2 Air Filter-A4 7/07/08 Beta 1.7+/-0.2 1.6+/-0.2 **

Air Filter-A5 7/07/08 Beta 1.4+/-0.2 1.4+/-0.2 Air Filter-SFA1 7/07/08 Beta 1.4+/-0.2 1.5+/-0.2 Air Filter-SFA2 7/07/08 Beta 1.4+/-0.2 1.3+/-0.2 Air Filter-SFA3 7/07/08 Beta 1.3+/-0.2 1.2+/-0.2 Air Filter-SFA4 7/07/08 Beta 1.4+/-0.2 1.4+/-0.2 Air Iodine-A4 7/07/08 1-131 <MDA <MDA Air Iodine-A5 7/07/08 1-131 <MDA <MDA pCi/kg Vegetation-lbl 7/28/08 Gamma <MDA <MDA <MDA Vegetation-lb3 7/28/08 Gamma <MDA <MDA <MDA Vegetation-Ib4 7/28/08 Gamma <MDA <MDA <MDA Vegetation-I b5 7/28/08 Gamma <MDA <MDA <MDA Vegetation-lb6 7/28/08 Gamma <MDA <MDA <MDA Vegetation-I b7 7/28/08 Gamma <MDA <MDA <MDA Vegetation-I b8 7/28/08 Gamma <MDA <MDA <MDA Vegetation-I b9 7/28/08 Gamma <MDA <MDA <MDA 3

10-2 pCi/m Air Filter-Al 8/04/08 Beta 2.3+/-0.2 2.3+/-0.2 Air Filter-A2 8/04/08 Beta 2.1+/-0.2 2.0+/-0.2 Air Filter-A3 8/04/08 Beta 2.1+/-0.3 2.1+/-0.2 Air Filter-A4 8/04/08 Beta 1.7+/-0.2 1.8+/-0.2 **

Air Filter-A5 8/04/08 Beta 2.9+/-0.3 2.9+/-0.3 **

Air Filter-SFAl 8/04/08 Beta 1.9+/-0.3 2.2+/-0.3 **

Air Filter-SFA2 8/04/08 Beta 2.4+/-0.2 2.3+/-0.2 Air Filter-SFA3 8/04/08 Beta 2.0+/-0.2 1.8+/-0.2 Air Filter-SFA4 8/04/08 Beta 2.4+/-0.3 2.3+/-0.2 **

    • The nature of these samples precluded splitting them with an independent laboratory.

80

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C Continued Results of Quality Assurance Program Sample Type Sample Type of Original Replicate Split And Location Date Analysis Analysis Analysis Analysis 3

10.2 pCi/m

"**/

Air Iodine-Al 8/04/08 1-131 <MDA <MDA Air Iodine-A2 8/04/08 1-131 <MDA <MDA pCi/kg Fish-lal 8/19/08 Gamma <MDA <MDA <MDA Oysters-la3 8/19/08 Gamma <MDA <MDA <MDA pCi/L Bay Water-Wal 8/29/08 Gamma <MDA <MDA <MDA pCi/kg Vegetation-lb6 9/29/08 Gamma <MDA <MDA

    • W Vegetation-lb7 9/29/08 Gamma <MDA <MDA
    • ~

Vegetation-lb8 9/29/08 Gamma <MDA <MDA Vegetation-lb9 9/29/08 Gamma <MDA <MDA 3

10-2 pCi/m Air Iodine-A3 9/08/08 1-131 <MDA <MDA Air Iodine-A4 9/08/08 1-131 <MDA <MDA **

Air Filter-Al 9/08/08 Beta 2.1+/-0.2 1.6+/-0.2 **

Air Filter-A2 9/08/08 Beta 2.2+/-0.2 1.9+/-0.2 **

Air Filter-A3 9/08/08 Beta 1.9+/-0.2 1.9+/-0.2 **

Air Filter-A4 9/08/08 Beta 1.8+/-0.2 1.7+/-0.2 **

Air Filter-A5 9/08/08 Beta 2.7+/-0.3 2.5+/-0.3 Air Filter-SFAI 9/08/08 Beta 2.6+/-0.3 2.4+/-0.3 Air Filter-SFA2 9/08/08 Beta 2.0+/-0.2 1.9+/-0.2 **

Air Filter-SFA3 9/08/08 Beta 1.9+/-0.2 1.7+/-0.2 **

Air Filter-SFA4 9/08/08 Beta 2.3+/-0.2 2.1+/-0.2 **

    • The nature of these samples precluded splitting them with an independent laboratory.

81

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C Continued Results of Quality Assurance Program Sample Type Sample Type of Original Replicate Split And Location Date Analysis Analysis Analysis Analysis 10-3 pCi/m 3 Air Filters-Al 10/15/08 Gamma <MDA <MDA <MDA Air Filters-A2 10/15/08 Gamma <MDA <MDA <MDA Air Filters-A3 10/15/08 Gamma <MDA <MDA <MDA Air Filters-A4 10/15/08 Gamma <MDA <MDA <MDA Air Filters-A5 10/15/08 Gamma <MDA <MDA <MDA Air Filters-SFAl 10/15/08 Gamma <MDA <MDA <MDA Air Filters-SFA2 10/15/08 Gamma <MDA <MDA <MDA Air Filters-SFA3 10/15/08 Gamma <MDA <MDA <MDA Air Filters-SFA4 10/15/08 Gamma <MDA <MDA <MDA 10-2 pCi/m3 Air Iodine-Al 10/05/08 1-131 <MDA <MDA Air Iodine-A2 10/05/08 1-131 <MDA <MDA **

10-2 pCi/m3 Air Filter-Al 10/05/08 Beta 1.5+/-0.3 1.9+/-0.3 **

Air Filter-A2 10/05/08 Beta 1.5+/-0.3 1.7+/-0.3 **

Air Filter-A3 10/05/08 Beta 1.2+/-0.3 1.5+/-0.3 **

Air Filter-A4 10/05/08 Beta 1.6+/-0.3 1.9+/-0.3 **

Air Filter-A5 10/05/08 Beta 1.6+/-0.3 1.9+/-0.3 Air Filter-SFA1 10/05/08 Beta 1.7+/-0.3 2.0+/-0.3 Air Filter-SFA2 10/05/08 Beta 1.9+/-0.3 2.2+/-0.3 **

Air Filter-SFA3 10/05/08 Beta 1.9+/-0.3 2.0+/-0.3 **

Air Filter-SFA4 10/05/08 Beta 1.5+/-0.3 2.2+/-0.3 **

    • The nature of these samples precluded splitting them with an independent laboratory.

82

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C Continued Results of Quality Assurance Program Sample Type Sample Type of Original Replicate Split And Location Date Analysis Analysis Analysis Analysis mR/90 Days DR05 10/13/08 TLD 13.15+/-0.99 12.92+/-0.65 DR06 10/13/08 TLD 11.36+/-1.54 11.35+/-1.07 DR07 10/13/08 TLD 11.45+/-1.74 11.46+/-1.05 DR08 10/13/08 TLD 16.85+/-2.52 16.77+/-1.44 DR09 10/13/08 TLD 12.32+/-1.34 12.74+/-1.56 DR10 10/13/08 TLD 11.68+/-1.25 10.95+/-0.88 **

DR11 10/13/08 TLD 11.68+/-1.07 11.89+/-0.54 **

SFDR14 10/13/08 TLD 17.04+/-3.02 17.56+/-3.16 SFDR15 10/13/08 TLD 22.93+/-1.25 22.34+/-2.43 DR29 10/13/08 TLD 17.08+/-2.00 16.61+/-0.61 DR31 10/13/08 TLD 17.75+/-2.03 17.38+/-1.95 pCi/kg Vegetation-I b3 10/26/08 Gamma <MDA <MDA <MDA Vegetation-lb5 10/26/08 Gamma <MDA <MDA <MDA Vegetation-lb6 10/26/08 Cs-1 37 56+/-17 36+/-20 55+/-21 Vegetation-lb7 10/26/08 Gamma <MDA <MDA <MDA Vegetation-lb9 10/26/08 Gamma <MDA <MDA <MDA 3

10-2 pCi/m Air Filter-Al 11/09/08 Beta 1.9+/-0.2 2.1+/-0.2 Air Filter-A2 11/09/08 Beta 1.8+/-0.3 2.1+/-0.3 Air Filter-A3 11/09/08 Beta 1.7+/-0.3 1.9+/-0.3 Air Filter-A4 11/09/08 Beta 1.7+/-0.2 2.0+/-0.2 Air Filter-A5 11/09/08 Beta 1.5+/-0.2 1.8+/-0.2 Air Filter-SFA1 11/09/08 Beta 1.7+/-0.3 1.8+/-0.3 Air Filter-SFA2 11/09/08 Beta 1.7+/-0.2 1.5+/-0.2 Air Filter-SFA3 11/09/08 Beta 1.9+/-0.3 1.8+/-0.3 Air Filter-SFA4 11/09/08 Beta 1.7+/-0.2 1.9+/-0.3 **

    • The nature of these samples precluded splitting them with an independent laboratory.

83

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C Continued Results of Quality Assurance Program Sample Type Sample Type of Original Replicate Split And Location Date Analysis Analysis Analysis Analysis 10.2 pCi/m 3 Air Iodine-A3 11/09/08 1-131 <MDA <MDA **

Air Iodine-A5 11/09/08 1-131 <MDA <MDA **

pCi/L Bay Water-WVa2 12/10/08 Gamma <MDA <MDA <MDA 3

10-2 pCi/m Air Filter-Al 12/07/08 Beta 2.0+/-0.3 2.3+/-0.3 **

Air Filter-A2 12/07/08 Beta 1.9+/-0.3 2.0+/-0.3 **

Air Filter-A3 12/07/08 Beta 2.1+/-0.3 2.3+/-0.3 Air Filter-A4 12/07/08 Beta 2.0+/-0.3 2.1+/-0.3 **

Air Filter-A5 12/07/08 Beta 1.8+/-0.2 1.9+/-0.2 **

Air Filter-SFA1 12/07/08 Beta 2.0+/-0.3 2.1+/-0.3 **

Air Filter-SFA2 12/07/08 Beta 2.0+/-0.3 2.0+/-0.3 **

Air Filter-SFA3 12/07/08 Beta 2.1+/-0.3 2.2+/-0.3 Air Filter-SFA4 12/07/08 Beta 1.9+/-0.3 2.0+/-0.3 **

Air Iodine-Al 12/07/08 1-131 <MDA <MDA **

Air Iodine-A2 12/07/08 1-131 <MDA <MDA **

pCi/Kg SoiI-SFS4 12/01/08 Gamma <MDA <MDA <MDA Soil-SFS5 12/01/08 Cs-137 242+/-35 258+/-35 264+/-48 Vegetation- 12/01/08 Gamma <MDA <MDA <MDA SFb4 Vegetation- 12/01/08 Cs-137 19+/-11 9+/-11 <MDA SFb5

    • The nature of these samples precluded splitting them with an independent laboratory.

84

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry Selected Bay Water Fish Shellfish Sediment Vegetation Particulates Nuclides pCi/I pCi/kg pCi/kg pCi/kg pCi/kg 10-3pCi/m 3 Na-22 1 8 3 12 6 5 Cr-51 12 105 4 104 50 63 Mn-54 1 9 3 12 5 4 Co-58 1 9 4 9 4 5 Fe-59 3 28 -, 9 24 10 12 Co-60 1 9 4 12 5 6 Zn-65 2 20 8 25 10 9 Nb-95 1 12 7 14 6 9 Zr-95 2 18 8 20 9 9 Ru-106 9 75 30 90 41 40 Ag-110m 1 10 10 10 5 4 Te-129m 16 131 60 162 79 95 1-131 4 65 30 35 22 74 Cs-134 1 8 4 10 5 4 Cs-137 .1 9 4 10 5 4 BaLa-140 3 32 15 25 14 36 Ce-144 7 40 16 54 26 18 85

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 (LEFT BLANK) 86

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 APPENDIX D 2008 Land Use Survey Appendix D contains the results of a Land Use Survey conducted around Calvert Cliffs Nuclear Power Plant during this operating period. A table listing the raw data of this survey and a discussion of the results are included in this Table D-1 appendix. LandUse Survey Discussion Distance From Plant (miles)

A Land Use Survey was conducted to identify, Sector Residence Garden within a distance of 5 miles, the location of the SE 1.5 1.5 nearest milk animal, the nearest residence, and SSE 1.6 2.1 the nearest garden greater than 50 m2 in each of S 1.6 1.6 the nine sectors over land. A detailed description SSW 1.5 1.8 of the Land Use Survey is given in a separate SW 1.1 1.7 document (Ref. 9). The position of the nearest WSW 1.3 1.2 residence and garden in each sector out to 5 W 1.3 1.3 miles is given in the adjacent table. There are no WNW 2.7 2.7 animals producing milk for human consumption NW 2.0 2.1 within the 5 mile radius. There were no new residences within the 5-mile radius.

The closest residence is situated in the SW sector and the, nearest garden is in the WSW sector, which is one of the historically 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 REMP have been placed in the sectors with the highest X/Q. One sampling garden is located in the S sector at a distance of 0.4 miles, and another is situated near the site, boundary in the SSE sector at a distance of 1.6 miles from the plant. These two sampling sites are considered good indicator locations for radioactive depositions around the plant.

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

87

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 APPENDIX D 2007 Revised Land Use Survey A detailed description of the Land Use Survey is given in a separate document (Ref. 13). Errors in the measurements of the distances to the nearest residences and the nearest gardens were identified. The distances to the nearest residence Table D-2 Revised 2007 Land Use Survey.

and the nearest garden in each sector were verified and the 2007 Land Use Census report amended.

Distance From Plant All distance measurements made during the (miles)

Land Use Census (GPS or odometer readings) are Sector Residence Garden now required to be verified against a map. The errors in the 2007 distance measurements did not SE 1.5 1.5 SSE 1.6 1.8 affect the calculated dose reported in the 2007 AREOR. S 1.6 1.6 SSW 1.5 1.7 SW 1.1 1.1 WSW 1.3 1.4 W 1.3 1.5 WNW 2.7 2.7 NW 2.0 2.1 88

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 APPENDIX E Additional Samples and Analysis Results Appendix E is a presentation of the analytical results for additional samples collected in the environs of CCNPP. These extra samples are not required by the ODCM (Ref. 2). Table E- 1 lists the locations of all the additional samples and the remaining tables in this appendix provide the results. Some of these samples 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 PICs added for the ISFSI.

Table E-9 shows the average monthly direct radiation as measured by the pressurized ion chamber at five locations. The power outage at Taylor's Island PICI began on June 2 4 th 2008 and the average value reported here is for just the first 24 days of June.

Table E-Il shows the direct radiation readings from TLDs placed at the perimeter of the Resin Storage Area which is a temporary waste resin storage and cask transfer area located to the west of the ISFSI facility. The TLD values are somewhat higher than those in the REMP program due to their proximity to this source of the radiation. However, when the direct radiation readings for the Resin Storage Area are compared with those from the ISFSI and Site Boundary TLDs, it is apparent that temporary storage of spent resin and cask transfers are having no significant, measurable effect on the environs surrounding CCNPP.

The NEI Industry Groundwater Protection Initiative was established to determine the potential impact nuclear power plants may have on the surrounding environment due to unplanned releases of radioactive liquids. Under the Groundwater Protection Initiative, groundwater monitoring is accomplished through routine sampling of the water table around the plant and analysis for gamma and tritium.

Groundwater samples were collected from five on-site piezometer tubes in 2008. A piezometer tube is a shallow monitoring well which allows access to groundwater at a depth of approximately 40 feet beneath the site. Of the five piezometer tubes sampled, only # 11 piezometer tube showed any plant related activity. This activity was previously identified and evaluated in December of 2005. The activity consists of tritium originating from normal radwaste discharges and was previously reported in the Annual Radioactive Release Reports. The tritium contamination is contained on site. No drinking water has been affected; the groundwater at this location does not impact any drinking water pathway. The 2008 analysis results for Tritium are shown in Table E-12 and analysis results for gamma emitting radionuclides are shown in Table E- 13.

89

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page E-1 Locations of Non-Tech Spec Environmental Sampling Stations for Calvert Cliffs Nuclear P o w er P lant .............................................................................................................................. 91 E-2 Synopsis of 2008 Calvert Cliffs Nuclear Power Plant Non-Tech Spec Radiological Environmental Monitoring Program ...................................................................................... 92 E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units 1 & 2 Non-Tech Spec Radiological Environmental Monitoring Program ............................................................. 93 E-4 Concentration of Gamma Emitters in Bottom Sediment .................................................... 94 E-5 Concentration of Iodine- 131 in Filtered Air ...................................................................... 95 E-6 Concentration of Beta Emitters in Air Particulates ............................................................. 97 E-7 Concentration of Gamma Emitters in Air Particulates ...................................................... 99 E-8 Concentration of Tritium and Gamma Emitters in Taylors Island Well Water ..................... 100 E-9 Direct Radiation as Measured in Pressurized Ion Chamber ................................................... 101 E -10 D irect Radiation ............................... ......... ;............................................................................ 102 E-11 Direct Radiation from Resin Storage Area ................................. 103 E- 12 Concentration of Tritium in Groundwater........................................................................... 104 E-13 Concentration of Gamma Emitters in Groundwater .............................................................. 105 90

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 TABLE E-1 Locations of Non-ODCM Environmental Sampling Stations for Calvert Cliffs Nuclear Power Plant Station Description Distance' Directioni (KM) (Miles) (Sector)

A6 Long Beach 4.4 2.7 NW A7 Taylors Island, Carpenter's Property 12.6 7.8 ENE A8 Cambridge, U of MD Estuarine Center 32.0 19.9 NE DR24 Route 4 and Parran Road 3.0 1.9 SW DR25 Camp Conoy Guard House 1.0 0.6 S DR26 Route 235 & Clarks Landing Rd. 20.5 12.7 SW DR27 Route 231 & Route 4 23.0 14.3 NW DR28 Taylors Island Emergency Siren #35 12.3 7.6 ENE DR29 Taylors Island Emergency Siren #38 12.5 7.8 E DR31 Cambridge, U of MD Estuarine Center 32.0 19.9 NE DR32 Twining Property, Taylors Island 12.3 7.6 NE DR33 P.A. Ransome Property, Taylors Island 14.8 9.2 ESE DR34 Shoreline at Barge Road 0.2 0.1 NE OSGDR1 North of Old Steam Generator Storage Facility 0.3 0.2 SW OSGDR2 West of Old Steam Generator Storage Facility 0.3 0.2 SW PICI Taylors Island, Carpenter's Property 12.6 7.8 ENE PIC2 On Site before Entrance to Camp Conoy 0.7 0.4 S PIC3 Meteorological Station 0.8 0.5 WSW PIC4 NNW of ISFSI 0.6 0.4 SW PIC5 SSE of ISFSI 0.6 0.4 SSW PIC8 CCNPP Visitor's Center 0.3 0.2 NW RPDR5 Resin Storage Area - North Fence Lower 0.7 0.4 SW RPDR6 Resin Storage Area - North Fence Upper 0.7 0.4 SW RPDR7 Resin Storage Area - West Fence Right 0.7 0.4 SW RPDR8 Resin Storage Area - West Fence Left 0.7 0.4 SW RPDR9 Resin Storage Area - South Fence Upper 0.7 0.4 SW RPDR10 Resin Storage Area - South Fence Lower 0.7 0.4 SW RPDRI 1 Resin Storage Area - East Fence Left 0.7 0.4 SW RPDR12 Resin Storage Area - East Fence Right 0.7 0.4 SW Wbs 1 Intake Area 0.2 0.1 NE Wbs2 Discharge Area 0.3 0.2 N Wbs3 Long Beach 4.4 2.7 NW Wbs4 Camp Conoy/Rocky Point 3.0 1.9 SE Wwl Taylors Island, Carpenter's Property 12.6 7.8 ENE Distance and direction from the central point between the two containment buildings.

91

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-2 Synopsis of 2008 Calvert Cliffs Nuclear Power Plant Non-Tech Spec Radiological Environmental Monitoring Program Sample Type Sampling Frequency Number of Locations Number Collected Analysis Analysis Frequency Number Analyzed Aquatic Environment Bottom S 2 4 Gamma S 4 Sediment Atmospheric Environment Air Iodine W 7 335 1-131 W 335 Air Particulates W 3 128 Gross Beta W 128 Gamma MVC 30 Direct Radiation Pressurized Ion M 6 66 Gamma M 66 Chamber Ambient Q 20 480 TLD Q 480 Radiation Terrestrial Environment Ground water M 2 12 Gamma M 12 H-3 M 12 92

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units 1 & 2 Non-Tech Spec 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 Analyses Detection (LLD) Mean (F)/Range Highest Annual Mean (F) / Range Mean (F)/Range Measurement) Performed Mean Name/Distance &

Direction Aquatic Environment Bottom Gamma (4) 20 129 (2/2) Discharge Area 129 (2/2) 115 (2/2)

(115-142)

Sediment Cs-1 37 (115-142) Wbs2 (113-117)

(pCi/kg) 0.3 km N Atmospheric Environment Air Particulates Gross Beta (128) 0.5 1.9 (104/104) Long Beach A6 1.9 (52/52) 1.7 (24/24)

(10.2 pCi/m 3) (0.5-8.4) 4.4 km NW (0.5-4.4) (0.8-2.8)

Direct Radiation Ambient TLD (480) 19.72 (480/480) West Fence Right 40.99 (24/24)

Radiation (8.98-66.37) RPDR07 (11.14-66.37)

(mR/90 days) km Pressurized Ion Ionization Chamber 6.41 (60/60) NNW of ISFSI PIC4 10.56 (12/12) 6.04 (6/6)

Chamber (66) (4.10-12.04) 0.6 km SW (7.80-12.04) (5.72-6.48)

(mR/30 days) 93

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-4 Concentration of Gamma Emitters in Bottom Sediment (Results in units of pCi/kg (dry) +/- 2a)

SAMPLE CODE Sample Cs-1 37 Gamma Emitters Date Wbs2 6/18/2008 142 +/-48 Discharge Area 10/29/2008 115 +/-43 Wbs4 ' 6/18/2008 118 +/- 42 Camp Conoy/ Rocky Point 10/29/2008 113+/-50 1 Control Location

  • All Non-Natural Gamma Emitters < MDA 94

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-5 Concentration of Iodine-131 in Filtered Air (Results in units of 10-3 pCi/m3 +/- 2a)

Start Date Stop Date A6 A7 CAM SFA1 SFA2 1 SFA3 SFA4 Long Taylors Cambridge MET Visitors NNW of SSE of Beach Island Station Center ISFSI ISFSI

  • * * *k
  • 12/31/2007 1/7/2008 "*

1/7/2008 1/14/2008 "*

  • k 1/14/2008 1/21/2008 "*

1/21/2008 1/28/2008

"* *k

  • 1/28/2008 2/4/2008 ** *k 2/4/2008 2/11/2008 *k 2/11/2008 2/18/2008 *¢ 2/18/2008 2/25/2008 "*

2/25/2008 3/3/2008 3/3/2008 3/10/2008 *t *k 3/10/2008 3/17/2008 *t 3/17/2008 3/24/2008 3/24/2008 3/31/2008 *I

  • A
  • k * *
  • 3/31/2008 4/7/2008 4/7/2008 4/14/2008 4/14/2008 4/21/2008 4/21/2008 4/28/2008 4/28/2008 5/5/2008 5/5/2008 5/12/2008 5/12/2008 5/1912008 5/19/2008 5/26/2008 5/26/2008 6/2/2008 6/2/2008 6/9/2008 *k
  • k *
  • 6/9/2008 6/16/2008 2 *k 6/16/2008 6/23/2008 2 "k
  • I 6/23/2008 6/30/2008 Control Location 2 Taylors Island site Out of service due to permanent Loss of Power 95

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E Continued Concentration of Iodine-131 in Filtered Air (Results in units of 10-3 pCi/m 3 +/- 2a)

Start Date Stop Date A6 A7 CAM SFA1 SFA2 1 SFA3 SFA4 Long Taylors Cambridge MET Visitors NNW of SSE of Beach Island Station Center ISFSI ISFSI

  • 2 *k 6/30/2008 7/7/2008 *k *k 2 *k 7/7/2008 7/14/2008 *
  • 2 7/14/2008 7/21/2008 *k *;
  • 2 7/21/2008 7/28/2008
  • k 2 *A 7/28/2008 8/4/2008 *
  • 1 "*
  • 2
  • 8/4/2008 8/11/2008 2 *1 8/11/2008 8/18/2008 *
  • k
  • 2 8/18/2008 8/25/2008 8/25/2008 9/1/2008 *
  • 9/11/2008 9/8/2008
  • 2 *k 9/8/2008 9/15/2008 *
  • 2 *k a 9/15/2008 9/22/2008 2
  • 9/22/2008 9/29/2008 */
  • k
  • 2 9/29/2008 10/6/2008 "*
  • 2 *k *
  • 10/6/2008 10/13/2008 2 *k *k 10/13/2008 10/20/2008
  • 2 *r 10/20/2008 10/27/2008 * * *
  • 2
  • 10/27/2008 11/3/2008 "*
  • k 2 * */
  • 11/3/2008 11/10/2008 2 *I 11/10/2008 11/17/2008 *
  • 2
  • 11/17/2008 11/24/2008 */

2 11/24/2008 12/1/2008 * *

  • 2 12/1/2008 12/8/2008 *
  • 2
  • 12/8/2008 12/15/2008 *k
  • 2
  • 12/15/2008 12/22/2008
  • 2
  • 12/22/2008 12/29/2008 1 Control Location 2 Taylors Island site Out of service due to permanent Loss of Power 3 Loss of Data, Air Sampler Malfunction 96

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-6 Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/m3 +/- 2a)

Start Date Stop Date A6 A7 1 CAM Long Beach Taylors Island Cambridge 12/31/2007 1/7/2008 2.9 +/- 0.2 2.5 +/- 0.2 2.4 +/- 0.2 1/7/2008 1/14/2008 1.6 +/- 0.2 1.5 +/- 0.2 1.3 +/- 0.2 1/14/2008 1/21/2008 1.9 +/- 0.2 2.1 +/-0.2 1.8 +/- 0.2 1/21/2008 1/28/2008 2.8 +/- 0.2 2.8 +/- 0.2 2.6 +/- 0.2 1/28/2008 2/4/2008 2.5 +/- 0.2 2.4 +/- 0.2 2.2 +/- 0.2 2/4/2008 2/11/2008 1.9 +/- 0.2 1.6 +/- 0.2 2.0 +/- 0.2 2/11/2008 2/18/2008 2.8 +/- 0.2 2.0 +/- 0.3 2.4 +/- 0.3 2/18/2008 2/25/2008 1.5+/-0.2 1.4 +/-0.2 1.4 +/-0.2 2/25/2008 3/3/2008 1.9 +/-0.2 1.7 +/-0.2 1.7 +/-0.2 3/3/2008 3/10/2008 1.3 +/- 0.2 1.6 +/- 0.2 1.5 +/- 0.2 3/10/2008 3/17/2008 1.8 +/- 0.2 2.2 +/- 0.2 1.7 +/- 0.2 3/17/2008 3/24/2008 1.8 +/- 0.2 1.8 +/- 0.2 1.7 +/- 0.2 3/24/2008 3/31/2008 2.2 +/- 0.2 2.1 +/-0.2 2.1 +/-0.2 3/31/2008 4/7/2008 1.2 +/- 0.2 1.0 +/- 0.2 0.8 +/- 0.1 4/7/2008 4/14/2008 0.8 +/- 0.2 0.8 +/- 0.2 0.8 +/- 0.2 4/14/2008 4/21/2008 2.0 +/- 0.2 2.3 +/- 0.2 1.4 +/- 0.2 4/21/2008 4/28/2008 2.0+/-0.2 1.4 +/- 0.2 1.6 +/- 0.2 4/28/2008 5/5/2008 1.8 +/- 0.2 1.8 +/-0.2 1.8 +/- 0.2 5/5/2008 5/12/2008 1.3 +/- 0.2 0.9+/-0.2 0.9 +/- 0.2 5/12/2008 5/19/2008 1.4 +/- 0.2 1.0 +/- 0.2 1.3 +/- 0.2 5/19/2008 5/26/2008 0.8 +/- 0.2 1.3 +/- 0.2 1.1 +/-0.2 5/26/2008 6/2/2008 0.5 +/- 0.1 1.2 +/- 0.2 1.3 +/- 0.2 6/2/2008 6/9/2008 1.4 +/- 0.2 1.8 +/- 0.2 1.6 +/-0.2 6/9/2008 6/16/2008 1.3 +/- 0.2 1.2 +/- 0.2 1.1 +/-0.2 2

6/16/2008 6/23/2008 1.2 +/-0.2 1.1 +/-0.2 2

6/23/2008 6/30/2008 1.8 +/- 0.2 1.8 +/- 0.3 Control Location 2 Taylors Island site Out of service due to permanent Loss of Power

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E Continued Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/m3 +/- 2a)

Start Date Stop Date A6 A7' 1 CAM Long Beach Taylors Island Cambridge 2

6/30/2008 7/7/2008 1.0 +/- 0.2 1.3 +/- 0.2 2

7/7/2008 7/14/2008 1.1 +/-0.2 1.0 +/-0.2 2

7/14/2008 7/21/2008 2.1 +/-0.2 1.5 +/-0.2 2

7/21/2008 7/28/2008 1.7 +/- 0.2 1.7 +/-0.2 2

7/28/2008 8/4/2008 1.9 +/- 0.2 1.7 +/- 0.2 2

8/4/2008 8/11/2008 2.0 +/- 0.2 1.4 +/- 0.2 2

8/11/2008 8/18/2008 2.0 +/- 0.2 1.9 +/- 0.2 2

8/18/2008 8/25/2008 2.0 +/- 0.2 1.8 +/- 0.3 2

8/25/2008 9/1/2008 1.3 +/- 0.3 1.2 +/- 0.2 2

9/11/2008 9/8/2008 1.9 +/-0.2 2.0 +/- 0.3 2

9/8/2008 9/15/2008 2.0 +/- 0.3 1.8 +/- 0.2 2

9/15/2008 9/22/2008 1.7 +/-0.2 2.1 +/-0.3 2

9/22/2008 9/29/2008 1.6 +/- 0.2 1.3 +/- 0.3 2

9/29/2008 10/6/2008 1.9 +/- 0.3 1.9 +/- 0.2 2

10/6/2008 10/13/2008 3.0 +/- 0.3 2.8 +/- 0.3 2

10/13/2008 10/20/2008 3.4 +/- 0.3 2.8+/-0.3 2

10/20/2008 10/27/2008 1.7 +/- 0.3 1.5 +/- 0.2 2

10/27/2008 11/3/2008 2.9+/-0.3 2.4 +/- 0.3 2

11/3/2008 11/10/2008 2.8 +/- 0.4 1.5 +/- 0.2 2

11/10/2008 11/17/2008 1.4 +/- 0.4 1.2 +/- 0.3 2

11/17/2008 11/24/2008 3.6 +/- 0.5 1.9 +/-0.3 2

11/24/2008 12/1/2008 3.3 +/- 0.3 2.5 +/- 0.3 2

12/1/2008 12/8/2008 2.0 +/- 0.3 2.1 +/-0.3 2

12/8/2008 12/15/2008 2.7 +/- 0.4 1.8 +/- 0.5 2

12/15/2008 12/22/2008 1.5 +/-0.2 1.7 +/- 0.3 2

12/22/2008 12/29/2008 4.4 +/- 0.3 3.4 +/- 0.3 Control Location 2 Taylors Island site Out of service due to permanent Loss of Power 98

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-7 Concentration of Gamma Emitters in Air Particulates (Results in units of 10-3 pCi/m 3 +/- 2a)

Sample A6 A7 1 CAM Date Long Beach Taylors Island Cambridge 1/15/2008 "*

2/15/2008

  • t
  • 3/15/2008 "*
  • t
  • 4/15/2008
  • k
  • 5/15/2008 6/15/2008 7/15/2008 8/15/2008 *k 9/15/2008 10/15/2008 2

11/15/2008 2

12/15/2008 Control Location 2 Taylors Island site Out of service due to permanent Loss of Power

  • Non-Natural Gamma Emitters < MDA 99

January 1 -,December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-8 Concentration of Tritium and Gamma Emitters in Taylors Island Well Water.

(Results in units of 103 pCi/m3 +/- 2a)

Sample H-3 Gamma Emitters Date "k

1/28/2008 <353 2/29/2008 <353 3/31/2008 <353 4/29/2008 <285 6/3/2008 <285 7/1/2008 <285 7/29/2008 <294 8/26/2008 <294 9/29/2008 <294 11/5/2008 332 +/- 181(1) 11/25/2008 <283 12/30/2008 <283

  • Non-Natural Gamma Emitters < MDA Error estimated from errors of analyses of same count times and efficiencies.

100

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-9 Direct Radiation as Measured in Pressurized Ion Chamber (Results in units of mR/30 days +/- 10%)

Sample Code Month Month PIC1 1 JAN 6.48 +/-0.65 FEB 5.72 +/- 0.57 Taylor's Island MAR 5.85 +-- 0.58 APR 6.06 +/- 0.61 MAY 6.13 +/- 0.61 JUN 5.98 +/- 0.60 2 2 JUL AUG 2 2 SEP OCT 2 2 NOV DEC PIC2 JAN 4.17 +/- 0.42 FEB 4.24 +/- 0.42 Entrance to Camp MAR 4.13 +/- 0.41 APR 4.10 +/- 0.41 Conoy MAY 4.33 +/-0.43 JUN 4.27 +/- 0.43 JUL 4.24 +/- 0.42 AUG 4.24 +/- 0.42 SEP 4.20 +/-0.42 OCT 4.30 +/- 0.43 NOV 4.32 +/- 0.43 DEC 4.29 +/- 0.43 PIC3 JAN 6.52 +/- 0.65 FEB 6.20 +/- 0.62 MET Station MAR 6.16 +/- 0.62 APR 5.69 +/- 0.57 MAY 5.11 +/- 0.51 JUN 4.96 +/- 0.50 JUL 4.88 +/- 0.49 AUG 11.78 +/- 1.18 SEP 4.86 +/- 0.49 OCT 5.00 +/- 0.50 NOV 5.14 +/- 0.51 DEC 5.18 +/- 0.52 PIC4 JAN 11.01 +/- 1.10 FEB 10.92 +/- 1.09 NNW of ISFSI MAR 10.90 +/- 1.09 APR 11.10 +/- 1.11 MAY 12.04 +/- 1.20 JUN 11.80 +/- 1.18 JUL 7.80 +/- 0.78 AUG 10.18 +/- 1.02 SEP 10.14 +/- 1.01 OCT 10.27 +/- 1.03 NOV 10.33 +/- 1.03 DEC 10.27 +/- 1.03 PIC5 JAN 6.52 +/- 0.65 FEB 6.51 +/- 0.65 SSE of ISFSI MAR 6.42 +/- 0.64 APR 6.27 +/- 0.63 MAY 6.34 +/- 0.63 JUN 6.30 +/- 0.63 JUL 5.69 +/- 0.57 AUG 6.28 +/- 0.63 SEP 6.22 +/- 0.62 OCT 6.35 +/- 0.64 NOV 6.39 +/- 0.64 DEC 6.34 */- 0.63 PIC8 JAN 4.79 +/- 0.48 FEB 5.02 +/- 0.50 Visitor's Center MAR 5.25 +/- 0.52 APR 5.09 +/- 0.51 MAY 5.06 +/- 0.51 JUN 5.00 +/- 0.50 JUL 4.99 +/- 0.50 AUG 4.99 +/- 0.50 SEP 4.92 +/- 0.49 OCT 5.02 +/- 0.50 NOV 5.03 +/- 0.50 DEC 5.00 +/- 0.50 Control Location 2 Taylors Island site Out of service due to permanent Loss of Power 101

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-10 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. 10.77 +/-0.83 11.85 +/-1.74 12.18 +/- 0.93 11.88 +/- 1.56 DR25 Camp Conoy Guard 11.45 +/-0.86 12.41 +/-0.27 12.93 +/- 0.84 12.93 +/- 0.29 House DR26 Rt. 235 and Clark's 9.93 +/- 0.57 10.88 +/- 0.93 11.30 +/- 0.98 11.15 +/- 0.89 Landing Road DR27 Rt. 231 and Rt. 4 10.67 +/- 0.82 10.70 +/- 0.88 10.96 +/- 1.31 11.02 +/- 0.94 DR28 Taylors Is. Siren #35 13.53 +/- 3.01 13.32 +/- 1.59 15.30 +/- 0.82 13.61 +/-1.44 DR29 Taylors Is. Siren #38 13.49 +/- 1.63 14.27 +/- 1.57 15.34 +/- 1.73 14.71 +/- 1.01 DR31 Cambridge 13.89 +/- 0.47 14.81 +/- 1.66 16.04 +/- 1.87 15.22 +/- 0.90 DR32 Twining Property, 12.87 +/- 0.84 12.77 +/-1.55 15.30 +/- 1.98 13.46 +/- 0.64 Taylors Island DR33 P. A. Ransome Property 13.62 +/- 1.70 14.79 +/- 0.94 15.57 +/- 1.53 15.02 +/- 1.95 DR34 Shoreline at Barge Rd. 8.98 +/- 0.51 9.41 +/- 0.51 9.11 +/- 1.32 9.66 +/- 0.78 OSG1 North of Old Steam 19.82 +1- 1.62 17.81 +/- 1.82 18.60 +/- 1.95 17.21 +/- 1.25 Generator Storage Facility OSG2 West of Old Steam 18.36 +/- 1.78 15.94 +/- 1.91 17.47 +/- 3.17 14.96 +/- 0.66 Generator Storage Facility 102

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-11 Direct Radiation (Results in units of mR/90 days +/- 2a)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter RPDR05 North Fence Lower 32.08 +/- 2.68 19.16 +/- 1.62 16.41 +/- 1.02 16.79 +/- 2.01 RPDR06 North Fence Upper 44.32 +/- 2.80 32.83 +/- 3.66 17.90 +/- 1.39 17.77 +/- 0.34 RPDR07 West Fence Right 42.57 +/- 3.51 11.14 +/- 1.54 66.37 +/- 9.01 43.87 +/- 4.19 RPDR08 West Fence Left 51.97 +/- 0.36 34.38 +/- 1.23 28.08 +/- 4.99 21.30 +/- 3.51 RPDR09 South Fence Upper 10.92 +/-0.91 37.34 +/- 5.24 21.56 +/- 1.96 18.26 +/- 1.99 RPDR10 South Fence Lower 49.05 +/- 7.92 30.47 +/- 3.83 22.93 +/- 2.79 20.70 +/- 3.27 RPDR11 East Fence Left 10.84 +/- 1.62 22.03 +/- 3.09 28.64 +/- 4.01 37.57 +/- 4.71 RPDR12 East Fence Right 51.01 +/- 6.92 25.22 +/- 2.01 19.96 +/- 3.23 26.50 +/- 1.76 103

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-12 Concentration of Tritium in Groundwater (Results in units of 10-3 pCi/m3 +/- 2a)

Sample Date Piezometer Tube #s 11 12 13 15 18 03/20/2008 *

  • 06/13/2008 *
  • 08/11/2008 669 +/- 180 *
  • 08/19/2008 848+/- 180 08/25/2008 744 +/- 181 09/01/2008 914 +/- 184 09/08/2008 918+/- 181(1) 09/08/2008 937 +/- 185 09/15/2008 879 +/- 181(')

09/22/2008 895 +/- 179 09/29/2008 1142 +/- 184 10/06/2008 918+/- 181 10/13/2008 775+/- 181(1) 10/20/2008 957+/- 187 766+/- 181(') *

  • 10/23/2008 699+/- 181(l) 10/27/2008 11/04/2008 880+/- 184 11/11/2008 669+/- 181(')

12/05/2008 543+/- 181

  • Analysis Results < MDA Error estimated from errors of analyses of same count times and efficiencies.

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-13 Direct Radiation (Results in units of mR/90 days +/- 2cr)

Sample Date Piezometer Tube #s 11 12 13 15 18 3/20/2008

  • 6/13/2008 8/11/2008 10/23/2008 * * *
  • All Non-Natural Gamma Emitters < MDA 105

January 1 - December 31, 2008 Docket Nos. 50-317/50-318/72-8 Table E-13 Direct Radiation (Results in units of mR/90 days +/- 2a) aaa ld=.m I"J.G 106

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