Text

ISFSI - Annual Radiological Environmental Operating Report, January 1 - December 31, 2014
	ML15133A167
Person / Time
Site:	Calvert Cliffs
Issue date:	05/08/2015
From:	Laura Smith; Exelon Generation Co
To:	; Document Control Desk, Office of Nuclear Material Safety and Safeguards
References
	Download: ML15133A167 (96)
	v • d • e

Larry D. Smith SExeton Genieration,-) Manager-Regulatory Assurance Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby. MD 20657 410-495-5219 Office www.exeloncorp~corn Larry.smith2@exeloncorp.com May 8, 2015 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Calvert Cliffs Nuclear Power Plant; Unit Nos. 1 & 2; Renewed Facility Operating License Nos. DPR-53 and DPR-69 Docket Nos. 50-317 & 50-318 Independent Spent Fuel Storage Installation; Material License No. SNM-2505 NRC Docket No. 72-8

Subject:

Annual Radiological Environmental Operating Report

References:

1. Calvert Cliffs Nuclear Power Plant Technical Specification 5.6.2

2. Calvert Cliffs Independent Spent Fuel Storage Installation Technical Specification 6.2 In accordance with References 1 and 2, Calvert Cliffs Nuclear Power Plant is submitting the Annual Radiological Environmental Operating Report (Attachment 1).

There are no regulatory commitments contained in this correspondence.

Should you have questions regarding this matter, please contact me at (410) 495-5219 or Mr. David Merryman at (410) 495-4913.

Respectfully, A~ary .Smith Manager-Regulatory Assurance LDS/PSF/bjm

Attachment:

(1) Annual Radiological Environmental Operating Report for the Calvert Cliffs Nuclear Power Plant Units 1 and 2 and the Independent Spent Fuel Storage Installation F/ 5Z

Document Control Desk May 8, 2015 Page 2 cc: NRC Project Manager, Calvert Cliffs S. Gray, MD-DNR NRC Regional Administrator, Region I R. Manley, MDE NRC Resident Inspector, Calvert Cliffs

ATTACHMENT (1)

ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR THE CALVERT CLIFFS NUCLEAR POWER PLANT UNITS 1 AND 2 AND THE INDEPENDENT SPENT FUEL STORAGE INSTALLATION Calvert Cliffs Nuclear Power Plant May 8, 2015

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, 2014 A. M. Barnett C. D. Merryman EXELON GENERATION COMPANY, LLC MAY 2014

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 TABLE OF CONTENTS LIST O F FIGU R ES ............................................................................................................................ ii LIST O F TA B L E S ............................................................................................................................. iii I. SU M M A R Y ....................................................................................................................................... 1 II. CALVERT CLIFFS NUCLEAR POWER PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ...................................................... 3 II.A. INTRO DUCTIO N ................................................................................................................................................ 3 II.B. PRO G RA M ........................................................................................................................................................... 3 I .B.1 O biectives ...................................................................................................................................................... 3 II.B.2 Sam ple Collection .......................................................................................................................................... 4 l.B3.3 Data Interpretation ....................................................................................................................................... 4 Program Exceptionsc.B.4 ...................................................................................................................................... 4 I .C. RESULTS A ND D ISC USSIO NS .......................................................................................................................... 4 II.C .1 Aquatic Environm ent .................................................................................................................................... 5

.C.l.a Bay W ater .................................................................................................................................................... 5 II.C.l.b Aquatic O rganism s ..................................................................................................................................... 5 II.C.l.c Shoreline Sedim ent .................................................................................................................................... 6 I.C.2 Atm ospheric Environm ent ........................................................................................................................... 9 II.C .2.a Air Particulate Filters ................................................................................................................................ 9 II.C.2.b Air Iodine ................................................................................................................................................... 9 II.C.3 Terrestrial Environm ent ........................................................................................................................... II II.C.3.a V egetation ................................................................................................................................................. 11 II.C.4 Direct Radiation .......................................................................................................................................... 1 II.D. CO NC LUSIO N .................................................................................................................................................... 13 IiI. INDEPENDENT SPENT FUEL STORAGE INSTALLATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ...................................................... 19 III.A. INTRO D UCTIO N .............................................................................................................................................. 19 II .B3. PRO G RAM ......................................................................................................................................................... 19 III.B.1 O beectives ................................................................................................................................................... 19 llI.B .2 Sample Collection ...................................................................................................................................... 20 II.B3.3 Data Interpretation ................................................................................................................................... 20 II.Bt.4 Program Exceptions .................................................................................................................................. 20 Ill.C. RESULTS AN D D ISC USSIO N S ...................................................................................................................... 20 iII.C.l A tm ospheric Environm ent ............................................................................................................... 20 III.C.l.a A ir Particulate Filters ............................................................................................................................ 20 III.C.2 Terrestrial Environm ent .......................................................................................................................... 21 IlII.C.2.a Vegetation ............................................................................................................................................... 21 III.C .2 .b So ils ......................................................................................................................................................... 21 III.C.3 Direct Radiation ........................................................................................................................................ 22 III.D. CONC LUSIO N ................................................................................................................................................... 22 IV . RE FE RE N C E S ............................................................................................................................ 26 APPENDIX A Sample Locations for the REMP and the ISFSI ............................................. 27 APPENDIX B Analysis Results for the REMP and the ISFSI ................................................. 36 APPE ND IX C Q uality A ssurance Program .............................................................................. 57 A PPE N D IX D L and U se Survey ................................................................................................. 71 APPENDIX E Additional Samples and Analysis Results ........................................................ 72

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 LIST OF FIGURES Figure Title Page 1 Tritium in Chesapeake Bay W ater ....................................................................................... 7 2 Silver-i 10m and Potassium-40 in Chesapeake Bay Oysters .............................................. 8 3 Nuclear Fallout in the Calvert Cliffs Area ........................................................................... 10 4 Mean TLD Gamma Dose, Calvert Cliffs Nuclear Power Plant .......................................... 12 5 Atmospheric Dispersion Around CCNPP Average Relative Air Concentrations (X/Q) ......... 15 6 Atmospheric Dispersion Around CCNPP Average Relative Ground Deposition (D/Q) ........ 16 7 M ean TLD G am m a D ose, ISFSI ......................................................................................... 23 A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs N uclear Pow er Plant ........................................................................................................... 30 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-2 Miles ................................... 31 A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-10 Miles ................................ 32 A-4 Independent Spent Fuel Storage Installation Sampling Locations .................................... 34 A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations ........ 35 E-1 Site M ap Groundwater M onitoring W ells .......................................................................... 88 ii

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 LIST OF TABLES Table Title Page 1 Synopsis of 2014 Calvert Cliffs Nuclear Power Plant Radiological Environmental M onitoring Program ............................................................................................................ . 17 2 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant U n its 1 an d 2 ................................................................................................................... 18 3 Synopsis of 2014 Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Radiological Environmental Monitoring Program ......................................... 24 4 Annual Summary of Radioactivity in the Environs of the Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation ............................................................. 25 A-i Locations of Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant..29 A-2 Locations of Environmental Sampling Stations for the Independent Spent Fuel Storage Installation at C alvert Cliffs .............................................................................................. 33 B-i Concentration of Tritium and Gamma Emitters in Bay Water .......................................... 38 B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish .......................................... 39 B-3 Concentration of Gamma Emitters in Oyster Samples ...................................................... 40 B-4 Concentration of Gamma Emitters in Shoreline Sediment ................................................. 41 B-5 Concentration of Iodine- 131 in Filtered Air ...................................................................... 42 B-6 Concentration of Beta Emitters in Air Particulates ............................................................. 44 B-7 Concentration of Gamma Emitters in Air Particulates ..................................................... 48 B-8a Concentration of Gamma Emitters in Vegetation Samples .............................................. 49 B-8b Concentration of Gamma Emitters in Vegetation From Locations Around the ISFSI ............ 50 B-9 Concentration of Gamma Emitters in Soil Samples From Locations Around the ISFSI ........ 51 B-10 Typical MDA Ranges for Gamma Spectrometry ............................................................... 52 B-11 Typical LLDs for Gamma Spectrometry ........................................................................... 53 B-12 D irect R adiation ....................................................................................................................... 54 C-1 Results of Participation in Cross Check Programs ............................................................. 59 C-2 Results of Quality Assurance Program ............................................................................. 62 C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry ....................... 70 D -1 L and U se Survey .............................................................................................................. 71 E-i Locations of Non-Tech Spec Environmental Sampling Stations for Calvert Cliffs Nuclear P ow er Plan t .............................................................................................................................. 74 E-2 Synopsis of 2014 Calvert Cliffs Nuclear Power Plant Non-Tech Spec Radiological Environm ental M onitoring Program ................................................................................... 75 E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units 1 & 2 Non-Tech Spec Radiological Environmental Monitoring Program ............................................................. 76 E-4 Concentration of Gamma Emitters in Bottom Sediment ................................................... 77 E-5 Concentration of Iodine- 131 in Filtered Air ...................................................................... 78 E-6 Concentration of Beta Emitters in Air Particulates ............................................................. 80 E-7 Concentration of Gamma Emitters in Air Particulates ...................................................... 82 E-8 Concentration of Tritium and Gamma Emitters in Taylorslsland Well Water ................... 83 iii

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 E -9 Direct R adiation ....................................................................................................................... 84 E-10 Direct Radiation from Resin Storage Area ........................................................................ 85 E- 11 Concentration of Tritium in Groundwater ........................................................................... 86 E-12 Gross Concentration of Gamma Emitters in Groundwater ................................................. 87 iv

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 I.

SUMMARY

During this operating period for Calvert Cliffs Nuclear Power Plant (CCNPP) Units 1 and 2, a total of 3468 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), the Environmental Technical Specifications (Ref. 5) and the 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 651 radiochemical analyses were performed on 583 environmental samples and 540 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, 360 radiochemical analyses were performed on 300 environmental samples, 64 of which were in common with the original REMP. In addition, 480 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, 720 analyses were performed on 604 additional environmental samples, and 480 additional TLDs were analyzed for ambient radiation exposure rates.

And lastly, 194 radiochemical analyses were performed on 194 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 intercomparison 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.

Monitoring the atmospheric environment involved sampling the air at various locations surrounding CCNPP and the ISFSI. Air particulates and gaseous iodine were collected on glass fiber filters and charcoal cartridges, respectively. The particulate filters were analyzed for beta activity and gamma emitting nuclides. The charcoal cartridges were analyzed for airborne gaseous radioiodine.

I

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 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 3469 radiological analyses performed. Low levels of man-made fission products were also observed in 11 of these analyses for the CCNPP REMP. These observations were attributed to fallout from past atmospheric weapons testing.

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 3.69 x 10-3 mrem via liquid and gaseous pathways, which is about 0.005% of the acceptable limit of 75 mrem/yr as specified in 40 CFR 190 "Environmental Radiation Protection Standards for Nuclear Power Operations" and 10 CFR 72.104, "Licensing Requirements for the Independent Storage of Spent Nuclear Fuel and High-Level Radioactive Waste";

b. a maximum whole body dose of 1.86 x 10-3 mrem via liquid and gaseous pathways, which is about 0.007% of the acceptable limit of 25 mrem/yr as specified in both 40 CFR 190 and 10 CFR 72.104; and

c. a maximum calculated dose to all other organs via liquid and gaseous pathways was equal to 3.29 x 10-3 mrem to the skin. This dose is about 0.013% of the allowable limit of 25 mrem/yr as specified in both 40 CFR 190 and 10 CFR 72.104.

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, 2014 Docket Nos. 50-317/50-318/72-8 II. CALVERT CLIFFS NUCLEAR POWER PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM II.A. INTRODUCTION Exelon Generation, formerly Constellation Energy Nuclear Generation (CENG), 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.

Results of the monitoring program for the pre-operational period 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 Nuclear Regulatory Commission (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 Interlaboratory 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.

Il.B. PROGRAM II.B.1 Obectives 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 190,

b. To detect any measurable build-up of long-lived radionuclides in the environment,

c. To monitor and evaluate ambient radiation levels, and

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

3

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 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 Exelon Generation, according to CCNPP and Exelon Industrial Services (EIS) Laboratory Procedures (Ref. 7, 8 and 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 Program Exceptions Sample A2 Camp Conoy Road, at the Emergency Siren had a malfunction and insufficient sample was collected due to low flow for the week of February 10th to February 17th. The pump was replaced on February 2 0th and no further loss of sample occurred. Troubleshooting revealed a wiring problem in the pump which was resolved and all other pumps were inspected and preemptive actions taken. This program exception has been entered into the site's Corrective Action Program to ensure it does not recur.

Two direct radiation dosimeters, both in the 4 th quarter, were found missing from ODCM (Ref.

6) sampling locations during this operating period. A thorough search of each area did not find the dosimeters and thus, direct radiation dosimeters were not taken from Mackall Road near Wallville (sample code DR13) and at Cove Point and Little Cove Point Roads sampling location (sample code DR 17) in the 4 th quarter of this operating period. No substitute samples were collected in lieu of the samples not taken from these locations. Direct radiation dosimeters were replaced at these locations for the purposes of monitoring direct radiation per the ODCM (Ref.

6), and these program exceptions were entered into the site's Corrective Action Program.

Oysters collected at IA3 Camp Conoy and IA6 Kenwood Beach were collected on April 1, 2014, one day outside of the first quarter sampling period. Sample collection was delayed several times as a result of severe weather which created conditions adverse to safety for the watercraft and sample collectors. This program exception has been entered into the site's Corrective Action Program.

II.C. RESULTS AND DISCUSSIONS All the environmental samples collected during the year were analyzed using Exelon Industrial Services 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 4

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 are further divided into subcategories according to sample type (e.g., Bay Water, Aquatic Organisms, etc., for the Aquatic Environment).

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.

l.C.l.a Bay Water Monthly bay water samples were taken from two locations during the year. These locations are the Intake Area (sample code WAI) and the Discharge Area (sample code WA2). Composite samples were obtained from 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, revealed no evidence of tritium in any of the samples taken from either site throughout the year.

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 no detectable concentrations of any plant-related radionuclides.

II.C.l.b Aquatic Organisms Twelve samples of 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 IA1 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).

Figure 2 compares K-40 and Ag- I1Oim observed in oysters from Camp Conoy (IA3) with annual effluent releases of Ag- 11mO as reported in the Radioactive Effluent Release Report.

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, 2014 Docket Nos. 50-317/50-318/72-8 II.C.l.c Shoreline Sediment Semiannual shoreline sediment samples are taken from one location during the year. This location is Shoreline at Barge Road (sample code WB 1). The semiannual shoreline sediment 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

I January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 FIGURE 1 Tritium in Chesapeake Bay Water 1200 1000

.4 800

"' 600 400-E

.2 200 I

Iii i i I lllEEllllEilIElilllllllllllllllll*l*lill*ll*l*ll I lllEIIll*lllll 0 i I' 0"k 00 0 rN w 00 Clen do oY 0 0* 0,n 0o 0o -4 - ,

Calendar Year 2000 C.)

1500 1000 a

0 500

)0 III,

ý~iIJl I I mIIII]IIIMIIII*IIIIBE*IIIIHIII m I

I U

un r-N~i~-

M~ 1-4 cc 1 ,cc n ý i ýýlLA cc r-cc o) 00~

cc

ý-i rn M 0) M Ln Calendar Year r-M

0) ý4 0

en 0

un 0

r.

0

]

0i ,-4 I en r-q u,

,-4 V-450

y 400

,9350

( 300 S250 c 200

.2 t 150 100 00 50 1", c00 c 00 c w cc Ch M MY-4 r MCe 0 0 0 0 0 r-4 -1 Calendar Year 7

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 FIGURE 2 Silver-1Orn and Potassium-40 in Chesapeake Bay Oysters 0.18 0.16

( 0.14 w 0.12 5 0.1

.:3 5 0.08 E 0.06

" 0.04

~ 1111J J,IJ J,1'1ý 1,Ilk ýI I

< 0.02 r% 11J 1 1 i'i

i 1

,r II v

Iý1 r V l lt -r r1~

I L 1,1111ýý11111 I r T I I~ i, ~ fl I.

~. wr-. 0 w-IN wc I*

wc L

wc w0 cc 0

o0 INJ Mc IT D w0 M~ 0 0 IN 0

"T 0

W 0

wc 0

0ý r-1 (N

" -1 k

-4 Calendar Year 7000 -

0 0 6000-0 E 5000-6 4000 -

,S3000 -

E 2000 -

ooo 0 00 z 0 .. . i .. . .. . .,,. . . . .. . . 1,,, ...,,l... ,1 .. , .. , ,

- r- r-. cc c 0 cccccc o o*C a ena o oYea

o 0 0 o Calendar Year 7000 6000 0

5000 E

4000 3000 0 2000 T 1000 I111f I I[Et IIl* I1 111$

II ~~I~

Calendar Year 8

January I - December 31, 2014 Docket Nos. 50-317/50-318/72-8 II.C.2 Atmospheric Environment The atmospheric environment was monitored by analyzing air particulate filters and charcoal 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 A1), Camp Conoy Road at the Emergency Siren (sample code A2), Bay Breeze Road (sample code A3), Route 765 at Lusby (sample code A4), and 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 1.2 x 10-2 to 3.7 x 10-2 pCi/m 3 for the indicator locations and 1.2 x 10-2 to 3.6 x 10-2 pCi/m3 at the control location.

The location with the highest overall mean of 2.1 x 10-2 pCi/m 3 was A5, Emergency Offsite Facility.

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 charcoal 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 charcoal cartridges collected from all five locations exhibited no detectable concentrations of 1-131.

Figure 3 depicts the historical trends of radioiodine.

9

January 1 - December 31, 2014 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 FALLOUT "200 -From Chernobyl E

150 ATMOSPHERIC FALLOUT From Fukushima Dai-Ichi co 100 0

C',

- 50 0 . .

-q toD NN 00 N

0 00 r4j 00

'q w0 kD 00 c0 00 0

0)

(N 0) kD (n

00 Mt0 0:

0 C4 0

MT 0 0 Dt 00 0

0

'-4 (N

'-4

~

'-4 -

Calendar Year 1200 ATMOSPHERIC FALLOUT From Weapons Testing 1000 E

0

- 800

.*, ATMOSPHERIC 2 FALLOUT From C: Weapons Testing

( 600 C

0 M ATMOSPHERIC a) 400 FALLOUT tfo From Chernobyl C,,

(9200 ut N 0) -4 Mn N r" rt m Un N 0)i -q M U ,N t-q M it N N* N* 00 00 00 00 00 0 0M 0 M C*

M 0 0 0 a 0 -4 Calendar Year 10

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 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.

lI.C.3.a Vegetation Vegetation samples were collected from three locations during the year. These locations are Garden Plot off Bay Breeze Road (sample codes 1B 1, 1B2, and 1B3), On Site before the Entrance to Camp Conoy (sample codes 1B4, IB5, and 1B6), and the Emergency Operations Facility (sample codes IB7, 1B8, and 1B9). 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. No plant related radionuclides were found in any of these samples.

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

TLDs were collected quarterly from twenty-three locations surrounding the plant. The twenty indicator locations are On Site Along the Cliffs (sample code DR1), Route 765 Auto Dump (sample code DR2), Giovanni's Tavern (sample code DR3), Route 765 across from White Sands (sample code DR4), John's Creek (sample code DR5), Lusby (sample code DR6), On Site before the Entrance to Camp Conoy (sample code DR7), On Site at Emergency Siren (sample code DR8), Bay Breeze Road (sample code DR9), Decatur and Calvert Beach Roads (sample code DR1O), 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 DR 16), Cove Point and Little Cove Point Roads (sample code DR17), 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 DR2 1), Solomons Island (sample code DR22), and Taylors Island, Anderson's Property (sample code DR23).

The mean 90 day ambient radiation measured at the indicator locations was 11.69 mR and ranged from 9.57 to 15.98 mR as reported in Table 2. The control locations showed a 90 day mean of 13.36 mR with ranges from 10.90 to 16.46 mR. The location with the highest overall mean of 16.10 was Taylors Island, Anderson's Property (sample code DR23) which ranged from 15.59 to 16.46 mR. 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. 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.

11

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 FIGURE 4 Mean TLD Gamma Dose, Calvert Cliffs Nuclear Power Plant 6

4 Miles (DR10-18)

-U- Control Locations (DR21-23)

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

Li, ro 0 3 E

2 1

0 M

i-Ln r-r-I-a-

r*-

,-4 00 M

00 Lfl 00 r-00 M-00

~ -1 M-M 0) un 0-I (7

M-(1

.' rn un 0

r-0 0 Mi 1i q-co

'-4 in r-1 Calendar Year 12

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 II.D. CONCLUSION No man-made fission or activation by-products attributable to plant operations were observed in the environment surrounding the plant during the year.

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

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 2.35 x 103 mrem to a child via the plume, ground, vegetable, and inhalation pathways at 1.1 km SW of the containments at Calvert Cliffs. This is about 0.003% of the acceptable limit of 75 mrem/yr as specified in 40 CFR 190 and 10 CFR 72.104.

A maximum whole body gamma dose of 3.19 x 10-4 mrem to a child at 1.1 km SW of the containments at Calvert Cliffs. This is about 0.001% of the acceptable dose limit of 25 mrem/yr as specified in 40 CFR 190 and 10 CFR 72.104.

A maximum dose to any other organ, in this case the skin, of 3.67 x 104 mrem to a child at 1.1 km SW of the containments at Calvert Cliffs. This is about 0.002% of the acceptable dose limit of 25 mrem/yr as specified in 40 CFR 190 and 10 CFR 72.104.

Liquid Pathways A maximum thyroid dose of 1.34 x 10-3 mrem to an adult for all liquid pathways, which is about 0.002 % of the acceptable dose limit of 75 mrem/yr as specified in 40 CFR 190 and 10 CFR 72.104.

A maximum whole body dose of 1.80 x 10-3 mrem to an adult via all liquid pathways, which is about 0.007 % of the acceptable dose limit of 25 mrem/yr as stated in 40 CFR 190 and 10 CFR 72.104.

A maximum dose to any other organ, in this case bone, of 2.92 x 10-3 mrem to a teen for all pathways, which is 0.012% of the acceptable dose limit of 25 mrem/yr specified in 40 CFR 190 and 10 CFR 72.104.

13

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Gaseous and Liquid Pathways Combined A maximum thyroid dose of 3.69 x 103 mrem via liquid and gaseous pathways, which is about 0.005% of the acceptable limit of 75 mrem/yr as specified in 40 CFR 190 and 10 CFR 72.104.

A maximum whole body dose of 1.86 x 10-3 mrem via liquid and gaseous pathways, which is about 0.007% of the acceptable limit of 25 mrem/yr as specified in 40 CFR 190 and 10 CFR 72.104.

A maximum calculated dose to all other organs via liquid and gaseous pathways is equal to 3.29 x 10 3mrem to the skin. This dose was about 0.013% of the allowable limit of 25 mrem/yr as specified in 40 CFR 190 and 10 CFR 72.104.

In all cases, the calculated doses are a small fraction of the applicable limits specified in 40 CFR 190 and 10 CFR 72.104.

Therefore, it is concluded that the radioactivity produced by the operation of Calvert Cliffs Units 1 and 2 combined with ambient radiation levels were significantly below the limits of the ODCM, 40 CFR 190, and 10 CFR 72.104. Furthermore, there was no significant build-up of plant-related radionuclides in the environment due to the operation of the CCNPP in 2014.

14

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 FIGURE 5 Atmospheric Dispersion Around CCNPP Average Relative Air Concentrations (X/Q) 15

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 FIGURE 6 Atmospheric Dispersion Around CCNPP Average Relative Ground Deposition (D/Q)

CD 10-Mile D/Q Contour Plots for Calvert alffs-2014 16

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table 1 Synopsis of 2014 Calvert Cliffs Nuclear Power Plant Radiological Environmental Monitoring Program Sample Type Sampling1 Number of Number Analysis Analysis Number Frequency= Locations Collected Frequency' Analyzed Aquatic Environment Bay Water, Surface MC 2 24 Gamma MC 24 Water, Drinking Water H-3 aC 8 Fish2 A 4 4 Gamma A 4 Oysters Q 2 8 Gamma Q 8 Shoreline Sediment SA 1 2 Gamma SA 2 Atmospheric Environment Air Iodine 3 W 5 259 1-131 W 259 4

Air Particulates W 5 259 Gross Beta W 259 Gamma MC 60 Direct Radiation Ambient Radiation Q 23 540 TLD Q 540 Terrestrial Environment Vecietation5 M 3 27 Gamma M 27

'WW=weekly, M=monthly, Q=quarterly, SA=semiannual, A=annual, C=composite 2 Once in Season, July through September 3The collection device contains silver Zeolite 4Beta counting is performed after >72 hour decay, Gamma spectroscopy performed on monthly composites of weekly samples 5Monthly during growing season when available 17

January 1 - December 31, 2014 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)/Rangel Mean Measurement) Performed Name/Distance2 &

Direction Atmospheric Environment Air Particulates Gross Beta (259) 0.5 2.0 (207/208) EOF A5 2.1 (52/52) 2.1 (52/52)

(10-2 pCi/m 3) (1.2-3.7) 19.3 km WNW (1.2-3.6) (1.2-3.6)

Direct Radiation Ambient Radiation TLD (540) -- 11.69 (480/480) Taylors Island 16.10 (24/24) 13.36 (72/72)

(mR/90 days) (9.57-15.98) DR23 (15.59-16.46) (10.90-16.46) 12.6 km ENE Mean and range based upon detectable measurements only. Fraction (F) of detectable measurements at specified location is indicated in parentheses.

2Distance and direction from the central point between the two containment buildings.

18

January 1 - December 31, 2014 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. This area was also used as a temporary storage area for additional radioactive material.

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.

The results were compared with that generated during the previous ISFSI pre-operational periods (Ref. 11) and the current and previous CCNPP REMP periods. These results are discussed in more detail in Section III. C.

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

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

b. To verify that radioactivity and ambient radiation levels attributable to operation of the ISFSI are within the limits specified in the Environmental Radiation Protection Standards as stated in 40 CFR 190 and 10 CFR 72.104,

c. To detect any measurable build-up of long-lived radionuclides in the environment due to the ISFSI,

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

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

19

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 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, Exelon according to EIS Laboratory Procedures (Ref. 7, 8, and 12).

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 EIS 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 A l; in common with the CCNPP REMP), Meteorological Station (SFAI), CCNPP Visitor's Center (SFA2), NNW of the ISFSI (SFA3), and SSE of the ISFSI (SFA4). These samples were analyzed 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 3 from 1.2 x 10-2 to 3.9 x 10-2 pCi/m for the indicator locations and 1.1 x 10-2 to 3.8 x 102 pCi/m 3

for the control location. The location with the highest overall mean of 2.1 x 10-2 pCi/m 3 was SFA2, Visitors Center.

20

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 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 Ve2etation 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).

Vegetation samples were analyzed for gamma emitting radionuclides. Cesium-137 was detected in one sample at an indicator location. The Cs-137 concentration was 68 + 24 pCi/kg. While the presence of Cs-137 in this sample may be plant-related, this range is consistent with that found from residual fallout of past atmospheric nuclear weapons testing. The activities of this radionuclide are well below the federal limits established in 40 CFR 190 and 10 CFR 72.104.

These are comparable to those observed in previous annual reporting periods for the CCNPP REMP and in the earlier pre-operational data for the ISFSI. No detectable concentrations of plant-related radionuclides were found in any of these samples. 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 six quarterly samples from both indicator and control locations. The Cs-137 concentrations ranged from 56 +/- 21 to 221 +/- 32 pCi/kg. While the presence of Cs-137 in these samples may be plant-related, this range is consistent with that found to be due to the residual fallout from past atmospheric nuclear weapons testing. The activities of this radionuclide are well below the federal limits established in 40 CFR 190 and 10 CFR 72.104. These are comparable to those observed in previous annual reporting periods for the CCNPP REMP and in the earlier pre-operational data for the ISFSI. No detectable concentrations of plant-related radionuclides were found in any of these samples. Naturally occurring radionuclides such as K-40 were also detected in all these samples.

21

January 1 - December 31, 2014 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 SFDR1O); WNW of ISFSI, (sample code SFDR1 1); WSW of ISFSI, (sample code SFDR12); South of ISFSI, (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 25.19 mR and ranged from 9.69 to 47.20 mR as reported in Table 4. The control location showed a 90 day mean of 11.88 mR and ranged from 10.34 to 12.71 mR. The location with the highest overall mean of 42.84 mR with a range of 39.83 to 47.20 mR was SFDR12, WSW 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. No plant-related radionuclides were 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.

22

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 FIGURE 7 Mean TLD Gamma Dose, ISFSI 12

-- *--Control Location (SFDR7)

-- 0 ISFSI Mean (DR7, SFDR1-6, 8-18) 8 0 6 E

4 2

0

*O w 0 WN 1" 00 a r4 W 1."

M00 0 0 0 0 r-4 '-4 r-4 Calendar Year 23

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table 3 Synopsis of 2014 Calvert Cliffs Nuclear Power Plant Independent Spent Fuel Storage Installation Radiological Environmental Monitoring Program Sample Type Sampling Number of Number Analysis Analysis Frequency' Number Frequency' Locations Collected Analyzed Atmospheric Environment Air Particulates' W 5 260 Gross Beta W 260 Gamma MC 60 Direct Radiation Ambient Radiation Q 20 480 TLD a 480 Terrestrial Environment Vegetation 0 5 20 Gamma Q 20 Soil Q 5 20 Gamma Q 20

' W=weekiy, M=monthly, Q=quarterly, SA=semiannual, A=annual, C=composite 2 Beta counting is performed after >72 hour decay, Gamma spectroscopy performed on monthly composites of weekly samples 24

January 1 - December 31, 2014 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 Locations Pathway Sampled Number of Detection (LLD) Locations Mean Highest Annual Mean (F) / Range 1 Mean (F)/Range (Unit of Analyses (F)/Range 1 Mean Measurement) Performed Name/Distance 2 &

Direction Atmospheric Environment Air Particulates Gross Beta (260) 0.5 2.0 (208/208) Visitors Center 2.1 (52/52) 2.1 (52/52)

(10-2 pCi/m 3) (1.2-3.9) SFA2 (1.1-3.8) (1.1-3.8) 0.7 km NNE Direct Radiation Ambient Radiation TLD (480) 25.19 (456/456) WSW of ISFSI 42.84 (24/24) 11.88 (24/24)

(mR/90 days) (9.69-47.20) SFDR12 (39.83-47.20) (10.34-12.71) 0.1 km WSW Terrestrial Environment Vegetation Gamma (20) 27 68 (1/16) On Site Before 68 (1/4)

(pCi/L) Cs-137 Entrance to Camp Conoy SFB5 0.7 km ESE Soil Gamma (20) 17 150 (4/16) Entrance to Camp 150 (4/4) 63 (2/4)

(pCi/kg) Cs-1 37 (121-221) Conoy SFS5 (121-221) (56-69) 0.7 km ESE Mean and range based upon detectable measurements only. Fraction (F) of detectable measurements at specified location is indicated in parentheses.

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

25

January 1 - December 31, 2014 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 1 and 2", NUS No. 1137 Annual Report 1972, December 1973.

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

(4) 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) Exelon Industrial Services Quality Assurance Program Manual (9) Constellation Energy, "Land Use Survey Around Calvert Cliffs Nuclear Power Plant, August 2014."

(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) CNG-EV-1.01-1000, Radiological Environmental Monitoring Program (REMP).

26

January 1 - December 31, 2014 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 which 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.

27

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 TABLE OF CONTENTS - SAMPLING LOCATIONS Table Title Page A-I Locations of Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant..29 A-2 Locations of Environmental Sampling Stations for the Independent Spent Fuel Storage Installation at C alvert C liffs ................................................................................................ 33 Figure Title Page A-1 Map of Southern Maryland and Chesapeake Bay Showing Location of Calvert Cliffs Nuclear Pow er Plant ........................................................................................................... . 30 A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-2 Miles .................................. 31 A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations, 0-10 Miles ................................ 32 A-4 Independent Spent Fuel Storage Installation Sampling Locations ..................................... 34 A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations ........ 35 28

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 TABLE A-1 Locations of Environmental Sampling Stations for the Calvert Cliffs Nuclear Power Plant Distance1 Direction 1 Station Description (KM) (Miles) (Sector)

A1 2 On Site Before Entrance to Camp Conoy 0.7 0.4 S A2 Camp Conoy Rd, at emergency siren 2.5 1.6 SSE A3 Bay Breeze Rd 2.6 1.6 SE A4 Route 765, Lusby 2.9 1.8 SSW A5 Emerg ency Operations Facility 19.3 12.0 WNW DR01 On Site along Cliffs 0.6 0.4 NW DR02 Route r65, Auto Dump 2.7 1.7 WNW DR03 Route r65, Giovanni's Tavern (Knotty Pine) 2.3 1.4 W DR04 Route r65, across from Vera's Beach Club 2.0 1.2 WSW DR05 Route 765, John's Creek 2.4 1.5 SW DR06 Route 765, Lusby 2.9 1.8 SSW DR072 On Site Before Entrance to Camp Conoy 0.7 0.4 S DR08 Camp Conoy Rd at Emergency Siren 2.5 1.6 SSE DR09 Bay Bneeze Rd 2.6 1.6 SE DR1 0 Calvert Beach Rd and Decatur Street 6.4 4.0 NW DR11 Dirt roa id off Mackall & Parren Rd 6.6 4.1 WNW DR12 Mackal I & Bowen Rds 6.7 4.2 W DR1 3 Mackal I Rd, near Wallville 6.1 3.8 WSW DR14 Rodne*y Point 6.4 4.0 SW DR1 5 Mill Briidge & Turner Rds 6.2 3.9 SSW DR16 Across from Appeal School 6.5 4.0 S DR1 7 Cove P'oint & Little Cove Point Rds 5.9 3.7 SSE DR1 8 Cove P'oint 7.1 4.4 SE DR19 Long Beach 4.4 2.7 NW DR20 On site , near shore 0.4 0.2 NNW DR21 Emergeency Operations Facility (EOF) 19.3 12.0 WNW DR22 Solom ons Island 12.5 7.8 S DR23 Taylors Island, Anderson's Property 12.6 7.8 ENE IA1 Discha rge Area 0.3 0.2 N IA1 0 Hog Isl and 15.3 9.5 SSE IA2 Discha rge Vicinity 0.3 0.2 N IA3 Camp Conoy 0.9 0.6 E IA4 Patuxe nt River 0.0 0.0 Various IA5 Patuxe nt river 0.0 0.0 Various IA6 Kenwo od Beach 10.7 6.7 NNW IB1 Garden Off Bay Breeze Rd 2.6 1.6 SSE I1B2 Gardenn Off Bay Breeze Rd 2.6 1.6 SSE IB3 Gardenn Off Bay Breeze Rd 2.6 1.6 SSE I1B4 On site ,before entrance to Camp Conoy 0.7 0.4 S lB5 On site before entrance to Camp Conoy 0.7 0.4 S IB6 On site ,before entrance to Camp Conoy 0.7 0.4 S 1B7 Emergeency offsite facility 19.3 12.0 WNW 118 Emergeency offsite facility 19.3 12.0 WNW 1B9 Emerg ency offsite facility 19.3 12.0 WNW WA1 Intake area 0.2 0.1 NNE WA2 Discha rge area 0.3 0.2 N WB1 Shoreli ne 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 29

January 1 - December 31, 2014 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 30

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Figure A-2 Calvert Cliffs Nuclear Power Plant Sampling Locations 0-2 Miles 31

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Figure A-3 Calvert Cliffs Nuclear Power Plant Sampling Locations 0-10 Miles 32

January 1 - December 31, 2014 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' StationDescrition

_Al' On Site Before Entrance to Camp Conoy 0.7 S SFA1 Meteorological Station 0.4 NW SFA2 CCNPP Visitor's Center 0.7 NNE SFA3 NNW of ISFSI 0.1 NNW SFA4 SSE of ISFSF 0.1 SSE

____ On Site Before Entrance to Camp Conoy 0.7 S DR30 Meteorological Station 0.4 NW SFDR01 SW of ISFSI 0.1 SW SFDR02 NNW of ISFSI 0.1 N SFDR03 North of ISFSI 0.1 N SFDR04 NE of ISFSI 0.1 NE SFDR05 East of ISFSI 0.1 E SFDR06 ESE of ISFSI 0.1 ESE SFDR07 CCNPP Visitor's Center 0.7 NNE SFDR08 NNW of ISFSI 0.1 NNW SFDR09 SSE of ISFSI 0.1 SSE SFDR10 NW of ISFSI 0.1 NW SFDR1 1 WNW ISFSI 0.1 WNW SFDR12 WSW of ISFSI 0.1 WSW SFDR1_ 3 South of ISFSI 0.1 S SFDR14 SE of ISFSI 0.1 SE SFDR1 5 ENE of ISFSI 0.1 ENE SFDR1 6 SSW of ISFSI 0.1 SW SFDR17 NNE of ISFSI 0.1 NNE SFDR1 8 West of ISFSI 0.1 W SFB1 ISFSI Vegletation Met Station 0.4 NW SFB32 ISFSI Vegletation Visitors Center 0.7 NNE SFB33 ISFSI Vegletation NNW of ISFSI 0.1 NNW SFB4 ISFSI vegetation SSE of ISFSI '0.1 SSE SFS1 ISFSI Soil Meteorologiical Station 0.4 NW SFS2 ISFSI Soil CCNPP Visitors Center 0.7 NNE SFS3 ISFSI Soil NNW of ISFSI 0.1 NNW SFS4 ISFSI Soil SSE of ISFSI 0.1 SSE SFS5 ISFSI Soil On Site Before entrance to Camp Conoy 0.7 ESE

' Distance and direction from the central point of the ISFSI 2 Common to both the REMP and ISFSI monitoring program 33

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Figure A-4 Independent Spent Fuel Storage Installation Sampling Locations 34

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Figure A-5 Enlarged Map of the Independent Spent Fuel Storage Installation Sampling Locations 35

January 1 - December 31, 2014 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.

36

January 1 - December 31, 2014 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 .......................................... 38 B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish .......................................... 39 B-3 Concentration of Gamma Emitters in Oyster Samples ...................................................... 40 B-4 Concentration of Gamma Emitters in Shoreline Sediment ................................................. 41 B-5 Concentration of Iodine- 131 in Filtered Air ...................................................................... 42 B-6 Concentration of Beta Emitters in Air Particulates ............................ 44 B-7 Concentration of Gamma Emitters in Air Particulates ...................................................... 48 B-8a Concentration of Gamma Emitters in Vegetation Samples ............................................... 49 B-8b Concentration of Gamma Emitters in Vegetation From Locations Around the ISFSI ..... 50 B-9 Concentration of Gamma Emitters in Soil Samples From Locations Around the ISFSI ........ 51 B-10 Typical MDA Ranges for Gamma Spectrometry ............................................................... 52 B-11 Typical LLDs for Gamm a Spectrometry ........................................................................... 53 B -12 D irect R adiation ....................................................................................................................... 54 37

January 1 - December 31, 2014 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 +/- 2a)

Sample Code Sample Date Gamma Emitters H-3' WA1 Intake Vicinity 2/3/2014 3/2/2014 3/31/2014 <307 5/1/2014

i 5/30/2014 7/3/2014 <301 8/1/2014 9/5/2014

i 10/3/2014 <152 11/1/2014 12/3/2014 1/2/2015 <152 WA2 *¢ Discharge Vicinity 2/3/2014 3/2/2014 3/31/2014 <307 5/1/2014 5/30/2014 7/3/2014 <301 8/1/2014 .*

9/5/2014 10/3/2014 <152 11/1/2014 12/3/2014 1/2/2015 <151 Quarterly composite of monthly samples.

All Non-Natural Gamma Emitters <MDA 38

January 1 - December 31, 2014 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) +/- 2o')

Sample Code Sample Date Sample Type Gamnna Emitters IAI Discharge Area 8/18/2014 Perch IA2.

Discharge Area 8/18/2014 Striped bass IA4' Patuxent River 8/18/2014 Perch IA51 Patuxent River 9/4/2014 Striped bass

Control Location

All Non-Natural Gamma Emitters <MDA 39

January 1 - December 31, 2014 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) +/- 2a)

Sample Code Sample Date Gamma Emitters IA3 Camp Conoy 4/1/2014

6/17/2014

8/18/2014

10/8/2014

IA6' Kenwood Beach 4/1/2014

6/17/2014

8/18/2014

10/8/2014

Control Location

All Non-Natural Gamma Emitters <MDA 40

January 1 - December 31, 2014 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 Date Gamma Emitters WB1 Shoreline at Barge Rd. 4/2/2014

9/30/2014 *

All Non-Natural Gamma Emitters <MDA 41

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table B-5 Concentration of Iodine-131 in Filtered Air (Results in units of 103 pCi/m3 +/- 2cr)

Start Date Stop Date Al A2 A3 A4 A5' Entrance to Camp Bay Breeze Route 765 EOF Camp Conoy Rd at Lusby Conoy Siren 12/30/2013 1/6/2014 "*

1/6/2014 1/13/2014 1/13/2014 1/20/2014 1/20/2014 1/27/2014 1/27/2014 2/3/2014 2/3/2014 2/10/2014

2/10/2014 2/17/2014 2/17/2014 2/24/2014 2/24/2014 3/3/2014 3/3/2014 3/10/2014 3/10/2014 3/17/2014 3/17/2014 3/24/2014 3/24/2014 3/31/2014 3/31/2014 4/7/2014 4/7/2014 4/14/2014 4/14/2014 4/21/2014 4/21/2014 4/28/2014 4/28/2014 5/5/2014 5/5/2014 5/12/2014 5/12/2014 5/19/2014 5/19/2014 5/26/2014 5/26/2014 6/2/2014 6/2/2014 6/9/2014

6/9/2014 6/16/2014 6/16/2014 6/23/2014 6/23/2014 6/30/2014

6/30/2014 7/7/2014 7/7/2014 7/14/2014 7/14/2014 7/21/2014 7/21/2014 7/28/2014 7/28/2014 8/4/2014 8/4/2014 8/11/2014 8/11/2014 8/18/2014 8/18/2014 8/25/2014 8/25/2014 9/1/2014 1 Control Location 2 Sampler malfunction/low flow

All Non-Natural Gamma Emitters <MDA 42

January 1 - December 31, 2014 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 Bay Breeze Route 765 EOF Camp Conoy Rd at Lusby Conoy Siren 9/1/2014 9/8/2014 9/8/2014 9/15/2014 9/15/2014 9/22/2014 9/22/2014 9/29/2014 9/29/2014 10/6/2014 10/6/2014 10/13/2014 10/13/2014 10/20/2014 10/20/2014 10/27/2014 10/27/2014 11/3/2014 11/3/2014 11/10/2014 11/10/2014 11/17/2014 11/17/2014 11/24/2014 11/24/2014 12/1/2014 12/1/2014 12/8/2014 12/8/2014 12/15/2014 12/15/2014 12/22/2014 12/22/2014 12/29/2014 Control Location

All Non-Natural Gamma Emitters <MDA 43

January 1 - December 31, 2014 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' Entrance to Camp Bay Breeze Route 765 EOF Camp Conoy Rd at Lusby Conoy Siren 12/30/2013 1/6/2014 2.1 +/-0.1 1.8 +/- 0.1 1.8 +/- 0.1 1.9 +/-O.1 2.1 +/-0.1 1/6/2014 1/13/2014 2.8 +/- 0.2 2.7 +/- 0.2 2.8 +/- 0.2 2.8 +/- 0.2 3.0 +/- 0.2 1/13/2014 1/20/2014 2.2 +/- 0.1 2.3 +/- 0.1 2.2 +/- 0.1 2.0 +/- 0.1 2.2 +/- 0.1 1/20/2014 1/27/2014 2.1 +/- 0.2 2.2 +/- 0.2 2.3 +/- 0.2 2.2 +/- 0.2 2.2 +/- 0.2 1/27/2014 2/3/2014 2.1 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 1.4 +/-0.1 2.3 +/- 0.1 2/3/2014 2/10/2014 3.5 +/- 0.2 3.3 +/- 0.2 3.7 +/- 0.2 3.5 +/- 0.2 3.6 +/- 0.2 2/10/2014 2 2/17/2014 2.6 +/- 0.1 2.5 +/- 0.1 2.6 +/- 0.1 2.0 +/- 0.1 2/17/2014 2/24/2014 1.6 +/- 0.1 1.6 +/- 0.2 1.4 +/-0.1 1.7 +/- 0.1 1.6 +/- 0.1 2/24/2014 3/3/2014 3.1 +/-0.2 3.1 +/-0.1 3.1 +/-0.1 3.2 +/- 0.1 3.2 +/- 0.2 3/3/2014 3/10/2014 2.1 +/-0.2 2.2 +/- 0.2 2.1 +/- 0.2 2.2 +/- 0.2 2.3 +/- 0.2 3/10/2014 3/17/2014 1.8 +/- 0.1 1.8 +/- 0.1 2.0 +/- 0.1 2.1 +/-0.1 2.0 +/- 0.1 3/17/2014 3/24/2014 2.0 +/- 0.2 2.0 +/- 0.2 2.0 +/- 0.2 2.1 +/-0.2 1.9 +/- 0.2 3/24/2014 3/31/2014 1.6 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 1.7 +/- 0.1 1.8 +/- 0.1 3/31/2014 4/7/2014 1.7 +/- 0.2 1.7 +/- 0.2 1.8 +/- 0.2 1.8 +/-0.2 1.7 +/- 0.2 4/7/2014 4/14/2014 1.9 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 2.1 +/-0.1 2.2 +/- 0.1 4/14/2014 4/21/2014 1.8 +/- 0.1 1.7 +/- 0.1 1.8 +/- 0.1 1.8 +/-0.1 1.9 +/- 0.1 4/21/2014 4/28/2014 1.8 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 4/28/2014 5/5/2014 1.3 +/- 0.1 1.3 +/- 0.1 1.4 +/-0.1 1.3 +/- 0.1 1.4 +/- 0.1 5/5/2014 5/12/2014 1.8 +/- 0.1 1.9 +/- 0.1 1.8 +/-0.1 2.0 +/- 0.1 2.0 +/- 0.1 5/12/2014 5/19/2014 1.6 +/- 0.1 1.7 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 1.9 +/- 0.1 5/19/2014 5/26/2014 2.1 +/-0.1 1.9 +/- 0.1 2.0 +/- 0.1 2.2 +/- 0.1 2.0 +/- 0.1 5/26/2014 6/2/2014 1.4 +/- 0.1 1.6 +/- 0.1 1.4 +/- 0.1 1.6 +/- 0.1 1.5 +/- 0.1 6/2/2014 6/9/2014 1.2 +/- 0.1 1.4 +/- 0.2 1.5 +/- 0.2 1.4 +/- 0.2 1.6 +/- 0.2 6/9/2014 6/16/2014 1.2 +/-0.1 1.2 +/- 0.1 1.4 +/- 0.1 1.3 +/- 0.1 1.2 +/- 0.1 6/16/2014 6/23/2014 2.4 +/- 0.1 2.5 +/- 0.1 2.5 +/- 0.1 2.6 +/- 0.1 2.5 +/- 0.1 6/23/2014 6/30/2014 1.5 +/- 0.1 1.5 +/- 0.1 1.5 +/- 0.1 1.4 +/- 0.1 1.4 +/- 0.1 6/30/2014 7/7/2014 2.1 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 7/7/2014 7/14/2014 2.1 +/-0.1 2.2 +/- 0.2 2.1 +/-0.1 2.4 +/- 0.2 2.0 +/- 0.1 7/14/2014 7/21/2014 1.6 +/- 0.1 1.7 +/- 0.1 1.5 +/- 0.1 1.6 +/-0.1 1.7 +/- 0.1 7/21/2014 7/28/2014 1.8 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 1.9 +/-0.1 1.9 +/- 0.1 7/28/2014 8/4/2014 1.4 +/- 0.1 1.2 +/- 0.1 1.4 +/- 0.1 1.3 +/- 0.1 1.5 +/- 0.1 8/4/2014 8/11/2014 2.2 +/- 0.1 2.4 +/- 0.1 2.0 +/- 0.1 2.3 +/- 0.1 2.3 +/- 0.1 8/11/2014 8/18/2014 2.0 +/- 0.2 2.1 +/-0.2 2.1 +/- 0.2 2.0 +/- 0.2 2.2 +/- 0.2 8/18/2014 8/25/2014 1.6 +/- 0.1 1.8 +/- 0.1 1.6 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 8/25/2014 9/1/2014 1.9 +/- 0.1 1.9 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 Control Location 2 Sampler malfunction/low flow 44

January 1 - December 31, 2014 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/m3 +/- 2c)

Start Date Stop Date Al A2 A3 A4 A5' Entrance to Camp Bay Breeze Route 765 EOF Camp Conoy Rd at Lusby Conoy Siren 9/1/2014 9/8/2014 1.8 +/- 0.1 1.9 +/- 0.1 1.8 +/-0.1 1.9 +/- 0.1 1.8 +/- 0.1 9/8/2014 )/15/2014 1.2 +/- 0.1 1.3 +/- 0.1 1.3 +/- 0.1 1.2 +/- 0.1 1.3 +/- 0.1 9/15/2014 9/22/2014 2.3 +/- 0.1 2.6 +/- 0.2 2.6 +/- 0.2 2.6 +/- 0.2 2.8 +/- 0.2 9/22/2014 )/29/2014 1.9 +/-0.1 2.0 +/- 0.1 1.9 +/- 0.1 1.9 +/- 0.1 2.1 +/-0.1 9/29/2014 10/6/2014 1.9 +/- 0.2 2.0 +/- 0.2 1.8 +/- 0.2 1.9 +/- 0.2 1.8 +/- 0.2 101612014 1()/13/2014 2.6 +/- 0.2 2.3 +/- 0.1 2.4 +/- 0.1 2.5 +/- 0.1 2.4 +/- 0.2 10/13/2014 1()/20/2014 1.6 +/- 0.1 1.7 +/- 0.1 1.6 +/- 0.1 1.5 +/- 0.1 1.6 +/- 0.1 10/20/2014 1()/27/2014 1.7 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 1.7 +/- 0.1 1.7 +/- 0.1 10/27/2014 11/3/2014 2.1 +/-0.1 1.8 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 2.2 +/- 0.1 111312014 1 1/10/2014 2.6 +/- 0.1 2.7 +/- 0.2 2.6 +/- 0.1 2.5 +/- 0.1 2.8 +/- 0.1 11/10/2014 1 1/17/2014 1.9 +/- 0.1 1.9 +/- 0.1 1.9 +/- 0.1 2.1 +/-0.1 2.0 +/- 0.1 11/17/2014 1 1/24/2014 2.4 +/- 0.1 2.5 +/- 0.1 2.4 +/- 0.1 2.4 +/- 0.1 2.6 +/- 0.1 11/24/2014 12/1/2014 2.2 +/- 0.1 2.2 +/- 0.1 2.1 +/-0.1 2.3 +/- 0.1 2.4 +/- 0.1 121112014 112/8/2014 2.5 +/- 0.1 2.6 +/- 0.1 2.2 +/- 0.1 2.6 +/- 0.1 2.7 +/- 0.1 121812014 1,2/15/2014 2.3 +/- 0.1 2.3 +/- 0.1 2.1 +/-0.1 2.2 +/- 0.1 2.4 +/- 0.1 12/15/2014 1,2/22/2014 2.5 +/- 0.1 2.6 +/- 0.1 2.5 +/- 0.1 2.5 +/- 0.1 2.5 +/- 0.1 12/22/2014 1 ?/29/2014 2.0 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 2.1 +/-0.1 Control Location 45

January 1 - December 31, 2014 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 +/- 2a)

Start Date Stop )ate SFA1 SFA2' SFA3 SFA4 MET Station Visitors NN\ N of ISFSI SSE of ISFSI Center 12130/2013 1/6/2014 2.1 +/-0.1 2.1 +/-0.1 2.0 +/- 0.1 1.9 +/- 0.1 1/6/2014 1/13/2014 2.5 +/- 0.2 2.8 +/- 0.2 2.9 +/- 0.2 2.8 +/- 0.2 1/13/2014 1/20/2014 2.3 +/- 0.1 2.3 +/- 0.1 2.2 +/- 0.1 2.3 +/- 0.1 1/20/2014 1/27/2014 2.5 +/- 0.2 2.0 +/- 0.2 2.5 +/- 0.2 2.4 +/- 0.2 1/27/2014 2/3/2014 2.5 +/- 0.1 2.5 +/- 0.1 2.3 +/- 0.1 2.4 +/- 0.1 2/3/2014 2/10/2014 3.7 +/- 0.2 3.8 +/- 0.2 3.9 +/- 0.2 3.6 +/- 0.2 2/10/2014 2/17/2014 2.8 +/- 0.1 2.7 +/- 0.1 2.9 +/- 0.1 2.5 +/- 0.1 2/17/2014 2/24/2014 1.6 +/- 0.1 1.6 +/- 0.1 1.7 +/-0.1 1.6 +/-0.1 2/24/2014 3/3/2014 3.2 +/- 0.2 3.1 +/-0.1 3.1 +/-0.1 3.1 +/-0.1 3/3/2014 3/10/2014 2.5 +/- 0.2 2.3 +/- 0.2 2.3 +/- 0.2 2.4 +/- 0.2 3/10/2014 3/17/2014 2.0 +/- 0.1 1.9 +/- 0.1 2.1 +/- 0.1 2.0 +/- 0.1 3/17/2014 3/24/2014 2.2 +/- 0.2 1.9 +/- 0.2 2.1 +/- 0.2 2.1 +/- 0.2 3/24/2014 3/31/2014 1.7 +/- 0.1 1.8 +/- 0.1 1.6 +/- 0.1 1.7 +/- 0.1 3/31/2014 4/7/2014 1.8 +/- 0.2 1.8 +/- 0.2 1.8 +/- 0.2 1.9 +/- 0.2 4/7/2014 4/14/2014 2.1 +/-0.1 2.2 +/- 0.1 2.1 +/-0.1 2.0 +/- 0.1 4/14/2014 4/21/2014 1.8 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1 4/21/2014 4/28/2014 1.8 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 2.2 +/- 0.1 4/28/2014 5/5/2014 1.3 +/- 0.1 1.6 +/- 0.1 1.4 +/- 0.1 1.5 +/- 0.1 5/5/2014 5/12/2014 2.1 +/-0.1 2.0 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 5/12/2014 5/19/2014 1.6 +/- 0.1 1.7 +/- 0.1 1.7 +/- 0.1 1.7 +/- 0.1 5/19/2014 5/26/2014 2.1 +/-0.1 2.2 +/- 0.1 2.3 +/- 0.1 2.2 +/- 0.1 5/26/2014 6/2/2014 1.6 +/- 0.1 1.6 +/- 0.1 1.5 +/- 0.1 1.6 +/- 0.1 6/2/2014 6/9/2014 1.3 +/- 0.2 1.5 +/- 0.2 1.4 +/- 0.2 1.5 +/- 0.2 6/9/2014 6/16/2014 1.4 +/- 0.1 1.3 +/- 0.1 1.4 +/- 0.1 1.3 +/- 0.1 6/16/2014 6/23/2014 2.5 +/- 0.1 2.7 +/- 0.1 2.7 +/- 0.2 2.3 +/- 0.1 6/23/2014 6/30/2014 1.3 +/- 0.1 1.4 +/- 0.1 1.5 +/- 0.1 1.4 +/- 0.1 6/30/2014 7/7/2014 2.1 +/-0.1 2.1 +/- 0.1 1.9 +/- 0.1 1.9 +/- 0.1 7/7/2014 7/14/2014 2.0 +/- 0.1 2.3 +/- 0.2 2.3 +/- 0.2 2.2 +/- 0.2 7/14/2014 7/21/2014 1.7 +/- 0.1 1.6 +/- 0.1 1.7 +/-0.1 1.5 +/-0.1 7/21/2014 7/28/2014 1.7 +/- 0.1 1.9 +/- 0.1 1.8 +/-0.1 1.9 +/- 0.1 7/28/2014 8/4/2014 1.4 +/- 0.1 1.3 +/- 0.1 1.5+/-0.1 1.3 +/- 0.1 8/4/2014 8/11/2014 2.3 +/- 0.1 2.6 +/- 0.1 2.4 +/- 0.1 2.4 +/- 0.1 8/11/2014 8/18/2014 1.9 +/- 0.1 2.2 +/- 0.2 2.4 +/- 0.2 2.0 +/- 0.2 8/18/2014 8/25/2014 1.5 +/- 0.1 1.6 +/- 0.1 1.6 +/- 0.1 1.6 +/- 0.1 8/25/2014 9/1/2014 2.0 +/- 0.1 2.2 +/- 0.1 2.1 +/- 0.1 1.9 +/- 0.1 Control Location 46

January 1 - December 31, 2014 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 SFA2' SFA3 SFA4 MET Station Visitors NNW of ISFSI SSE of ISFSI Center 9/1/2014 9/8/2014 1.9 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 9/8/2014 9/15/2014 1.2 +/- 0.1 1.1 +/-0.1 1.2 +/- 0.1 1.2 +/- 0.1 9/15/2014 9/22/2014 2.4 +/- 0.1 2.4 +/- 0.1 2.5 +/- 0.1 2.5 +/- 0.1 9/22/2014 9/29/2014 2.0 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 1.9 +/- 0.1 9/29/2014 10/6/2014 1.5 +/- 0.1 1.9 +/- 0.1 1.9 +/- 0.2 1.8 +/- 0.2 10/6/2014 10/13/2014 2.5 +/- 0.1 2.4 +/- 0.1 2.4 +/- 0.1 2.5 +/- 0.1 10/13/2014 10/20/2014 1.6 +/- 0.1 1.5 +/- 0.1 1.7 +/- 0.1 1.6 +/- 0.1 10/20/2014 10/27/2014 1.8 +/- 0.1 1.9 +/- 0.1 1.7 +/- 0.1 1.8 +/- 0.1 10/27/2014 11/3/2014 2.1 +/-0.1 2.1 +/-0.1 2.0 +/- 0.1 2.0 +/- 0.1 11/3/2014 11/10/2014 2.8 +/- 0.1 2.7 +/- 0.1 2.5 +/- 0.1 2.6 +/- 0.1 11/10/2014 11/17/2014 1.8 +/- 0.1 1.9 +/- 0.1 1.7 +/- 0.1 2.0 +/- 0.1 11/17/2014 11/24/2014 2.5 +/- 0.1 2.5 +/- 0.1 2.2 +/- 0.1 2.4 +/- 0.1 11/24/2014 12/1/2014 2.4 +/- 0.1 2.4 +/- 0.1 2.2 +/- 0.1 2.3 +/- 0.1 12/1/2014 12/8/2014 2.4 +/- 0.1 2.4 +/- 0.1 2.2 +/- 0.1 2.1 +/-0.1 12/8/2014 12/15/2014 2.2 +/- 0.1 2.5 +/- 0.1 2.2 +/- 0.1 2.3 +/- 0.1 12/15/2014 12/22/2014 2.5 +/- 0.1 2.6 +/- 0.1 2.3 +/- 0.1 2.5 +/- 0.1 12/22/2014 12/29/2014 2.0 +/- 0.3 2.0 +/- 0.1 1.9 +/-0.1 2.0 +/- 0.1 Control Location 47

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table B-7 Concentration of Gamma Emitters in Air Particulates (Results in units of 10-3 pCi/m3 +/- 2a)

Sample Date Al A2 A3 A4 A51 Entrance to Camp Conoy Bay Breeze Route 765 at EOF Camp Conoy Siren Rd Lusby 2/3/2014 .....

3/3/2014 .....

3/31/2014 .....

4/28/2014 .....

6/2/2014 .....

6/30/2014 .....

8/4/2014 .....

9/1/2014 .....

9/29/2014 .....

11/3/2014 .....

12/1/2014 .....

12/29/2014 .....

Sample Date SFA1 SFA2 1 SFA3 SFA4 MET Station Visitors Center NNW of ISFSI SSE of ISFSI 2/3/2014 ....

3/3/2014 ....

3/31/2014 ....

4/28/2014 ....

6/2/2014 ....

6/30/2014 ....

8/4/2014 ....

9/1/2014 ....

9/29/2014 ....

11/3/2014 ....

12/1/2014 ....

12/29/2014 ....

'Control Location

All Non-Natural Gamma Emitters <MDA 48

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table B-8a Concentration of Gamma Emitters in Vegetation Samples (Results in units of pCi/kg (wet) +/- 2a)

Sample Code Sample Date Sample Type Gamma Emitters IB1 Bay Breeze Rd 6/9/2014 Cabbage 7/21/2014 Cabbage 8/18/2014 Cabbage IB2 Bay Breeze Rd 6/9/2014 Brussels sprouts *A 7/21/2014 Brussels sprouts "*

8/18/2014 Brussels sprouts 1B3

I Bay Breeze Rd 6/9/2014 Broccoli 7/21/2014 Tree Leaves 8/18/2014 Tree Leaves "*

IB4 Camp Conoy Entrance 6/9/2014 Tree Leaves 7/21/2014 Cabbage 8/18/2014 Tree Leaves "*

A IB5 Camp Conoy Entrance 6/9/2014 Tree Leaves

A 7/21/2014 Tree Leaves 8/18/2014 Tree Leaves

I IB6 Camp Conoy Entrance 6/9/2014 Tree Leaves 7/21/2014 Tree Leaves 8/18/2014 Tree Leaves

A IB7V EOF 6/9/2014 Cabbage 7/21/2014 Cabbage 8/18/2014 Mint

/

IB8' EOF 6/9/2014 Brussels sprouts 7/21/2014 Tree Leaves 8/18/2014 Cabbage 1B9' EOF 6/9/2014 Broccoli 'A" 7/21/2014 Tree Leaves 8/18/2014 Tree Leaves

'Control Location

All Non-Natural Gamma Emitters <MDA 49

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table B-8b Concentration of Gamma Emitters in Vegetation From Locations Around the ISFSI (Results in units of pCi/kg (wet) +/- 2a)

Sample Code Sample Date Cs-137 Gamma Emitters SFB1 MET Station 3/24/2014 5/27/2014 */

9/15/2014 10/13/2014 SFB22 Visitor's Center 3/24/2014 5/27/2014 9/15/2014 10/13/2014 SFB3 1

NNW of ISFSI 3/24/2014 1 5/27/2014 I 9/15/2014 1 10/13/2014 SFB4 SSE of ISFSI 3/24/2014 5/27/2014 9/15/2014 10/13/2014 SFB5 On Site Before Entrance to Camp Conoy 3/24/2014 68 +/- 24 5/27/2014 9/15/2014 10/13/2014 2 This isotope <MDA Control Location

All Non-Natural Gamma Emitters <MDA 50

January 1 - December 31, 2014 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 Date Cs-137 Gamma Emitters SFS1 MET station 3/24/2014 5/27/2014 9/15/2014 10/13/2014 2

SFS2 Visitors Center 3/24/2014 69 +/- 33 5/27/2014 56 +/- 21 9/15/2014 10/13/2014 SFS3 NNW of ISFSI 3/24/2014 5/27/2014 9/15/2014 10/13/2014 SFS4 SSE of ISFSI 3/24/2014 5/27/2014 9/15/2014 10/13/2014 SFS5 Entrance to Camp Conoy 3/24/2014 221 +/- 32 5/27/2014 127 +/- 24 9/15/2014 132 +/- 28 10/13/2014 121 +/-31

'This isotope <MDA 2 Control Location

All Non-Natural Gamma Emitters <MDA 51

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table B-10 Typical MDA Ranges for Gamma Spectrometry Bay Water, Air Surface Shoreline Selected Particulates Water, Fish Groundwater Milk Oysters Sediment Soil Vegetation Nuclides (10.2 pCi/m 3) Drinking (pCi/kg) wet (pCi/L) (pCi/L) (pCi/kg) Wet (pCi/kg) Dry (pCi/kg) Dry (pCi/L) Wet Water (pCi/L)

Na-22 0-0 1.7-4 1 -54.5 2.2-4.2 3.9-5.3 4.4-21.1 34.5-59.5 22.4-86 11.2-34.1 K-40 0- 0 18.6 -44.1 0-421 22.4-47.8 30.7-43.5 37.2- 152 316.3-441 163 - 734 77.6- 287 Cr-51 0-0 13-34.8 0-533 20.1 -33.2 20.7-31.2 24.5- 112 253-378 126-706 57.6-206 Mn-54 0-0 1.7-3.6 0-51.4 2.1 -3.7 2.9-3.9 4.4-36.3 30.5-44.8 21.3-78.2 8.5-29.7 Co-58 0-0 1.8-3.6 0-57.1 2.1 -3.9 2.9-4 0.5-44.8 29.9-46.7 21.6-72.2 8.4-28.6 Fe-59 0-0 3.7-8.2 0-147 4.7-8.2 6.9-9.9 6.2-91.7 71.1-108 46.1-173 19.7-62.3 Co-60 0-0 1.8-3.7 0-57.9 2.1-4 3.5-4.8 7.2-37.3 34.7-49.7 20.3-79.8 10.3-32.4 Zn-65 0-0 3.6-7.5 0- 132 4.2-10.6 7.4-9.6 13.2-82.2 83.2-128 56.2-202 21.3-69.5 Nb-95 0-0 1.9- 4.2 0-80.2 2.4-4.3 2.9-4 3.6- 16.5 38.1 - 53.6 22.8- 100 8.9-29.5 Zr-95 0-0 3.1 -6.3 0-87.9 3.8-6.7 5-6.7 5.9-26.4 53.2-81 38.2- 136 15-49 Ru-106 0-0 13.9-31.1 0- 359 17.8-32.9 24.7-31.2 29- 134 263-368 187-586 73.2-252 Ag-11Om 0-0 1.5-3.4 0-46.7 1.9-3.5 2.7-3.4 3.3-15 28.2-41.9 25.1 -75.1 7.4-28.1 1-131* 0-.4 0-63.2 0-1329 3.6-9 0.4-0.6 4-18.6 49.5-106 0-4808 10.4-32.6 Cs-134 0-0 1.6-3.4 0-66.2 1.9-3.8 2.6-3.3 4.5-33.3 30.1 -45.9 37-74.5 9.3-27.6 Cs-137 0-0 1.6-3.6 0-54.9 1.8-3.9 2.9-3.8 5.4-34.8 30.6-47.6 30.5-79.6 10.6-29.3 Ba-140 0-.1 0-16.6 0-355 4.2-8.2 3-6.6 4.8-22.8 52.2-102 0-703 11-41.4 La-140 0-.1 0-16.6 0-355 4.2-8.2 3-6.6 4.8-22.8 52.2-102 0-703 11-41.4 Ce-144 0-0 8.9-17.9 0- 174 10.9-21.7 15.5- 18.8 14- 62.5 124-180 93.2-310 29.8- 117 2 3 This MDA range for 1-131 on a charcoal cartridge is typical 4.16 x 103 to 3.40 x 10- pCi/m 52

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table B-11 Typical LLDs for Gamma Spectrometry Air Bay Water, Selected Particulates Surface Water, Fish pCi/kg Ground water Oysters pCi/kg Precipitation Soil pCi/kg Vegetation 3

Nuclides i0 i Drinking Water (wet) pCi/L (wet) pCi/L (dry) pCi/kg (wet) pCi/L Na-22 2.9 2.9 22 2.9 22 2.9 24 35 Cr-51 12 17 88 17 88 17 110 162 Mn-54 2.1 2.4 17 2.4 17 2.4 18 27 Co-58 2 2.4 16 2.4 16 2.4 17 25 Fe-59 4.6 5.2 37 5.2 37 5.2 38 60 Co-60 2.7 2.8 22 2.8 22 2.8 21 33 Zn-65 2.8 5.6 23 5.6 23 5.6 54 66 Nb-95 1.9 2.2 15 2.2 15 2.2 18 25 Zr-95 3.3 3.8 27 3.8 27 3.8 29 44 Ru-106 17 20 135 20 135 20 146 223 Ag-110m 1.8 2.1 14 2.1 14 2.1 16 25 Te-129m 20 26 149 26 149 26 180 265 1-131* 1.5 2 11 2 11 2 14 20 Cs-134 1.9 2.2 15 2.2 15 2.2 20 24 Cs-137 1.8 2.3 15 2.3 15 2.3 17 27 Ba-140 6.1 7.3 48 7.3 48 7.3 54 80 La-140 3.4 4.1 26 4.1 26 4.1 25 41 Ce-144 5.5 12 43 12 43 12 75 101

The LLD for 1-131 measured on a charcoal cartridge is 2.0 x 10-3 pCi/m 3 53

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table B-12 Direct Radiation (Results in Units of mR/90 days +/- 2or)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter DR01 On Site, along Cliffs 12.96 +/- 0.69 12.98 +/- 0.62 13.52 +/- 1.61 13.79 +/- 1.05 DR02 Route 765, Auto Dump 11.05+/- 0.87 11.16+/- 0.60 10.68 +/- 1.93 11.36 +/- 1.03 DR03 Route 765, Giovanni's 10.90 +1- 1.23 10.70 +/- 1.07 9.66 +/- 2.49 11.20 +/- 1.41 Tavern Route 765, across from DR04 12.57 +/- 1.55 12.68 +/- 0.70 11.65 +/- 2.44 12.87 +/- 1.51 Vera's Beach Club DR05 Route 765, John's Creek 12.76 +/- 0.41 11.79 +/- 1.18 11.30 +/- 1.05 12.40 +/- 1.01 DR06 Route 765 at Lusby 10.65 +/- 0.97 10.77 +/- 1.37 10.22 +/- 2.80 11.10 +/- 0.82 DR07 Entrance to Camp 10.57 +/- 0.49 10.27 +/- 0.82 9.69 +/- 1.28 11.06 +/- 1.40 Conoy DR08 Camp Conoy Rd at 15.15 +/- 0.94 15.06 +/- 1.56 13.75 +/- 2.58 15.98 +/- 1.71 Emergency Siren DR09 Bay Breeze Rd 10.64 +/- 1.38 10.84 +/- 0.61 11.15 +/- 1.34 11.23 +/- 0.76 DR10 Calvert Beach Rd and 10.86 +/- 1.15 10.80 +/- 0.81 10.91 +/- 0.64 11.39 +/- 1.11 Decatur Street DR11 Dirt road off Mackall & 10.95 +/- 1.06 10.59 +/- 0.92 10.59 +/- 1.60 11.73 +/- 0.51 Parren Rd DR12 Mackall & Bowen Rds 11.33 +/- 0.65 10.73 +/- 0.75 10.42 +/- 0.81 11.55 +/- 1.15 DR13 Mackall Rd, near 12.01 +/- 0.64 12.12 +/- 0.83 13.03 +/- 0.54 Wallville

Missing TLD 54

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table B-12 Direct Radiation (Results in Units of mR/90 days +/- 2ar)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter DR14 Rodney Point 13.65 +/- 0.77 13.14 +f- 1.45 13.01 +/- 1.26 13.85 +/- 0.90 DR15 Mill Bridge &Turner Rds 11.96+/- 1.11 11.64+!- 0.29 9.64 +/- 1.05 12.24 +/- 0.65 DR16 Across from Appeal 10.83 +/- 0.85 10.57 +/- 0.53 10.54 +/- 3.20 11.13 +/- 0.63 School DR17 Cove Point & Little Cove 12.20 +/- 1.68 11.88 +/- 0.66 12.23 +/- 1.87

Point Rds DR18 Cove Point 9.95 +/- 0.44 9.57 +/- 0.84 9.61 +/- 1.31 9.96 +/- 0.92 DR19 Long Beach 11.19 +/- 1.41 11.30 +/- 0.42 11.99 +/- 1.47 11.22 +/- 0.57 DR20 On site, near shore 13.43 +/- 0.88 13.35 +/- 0.33 12.55 +/- 3.25 14.14 +/- 0.60 DR21' EOF 12.91 +/- 0.95 12.26 +/- 0.44 12.61 +/- 2.20 12.84 +/- 1.44 DR22' Solomons Island 11.81 +/- 0.80 11.05 +/- 0.59 10.90 +/- 1.97 11.52 +/- 0.28 DR23' Taylors Island 16.21 +/- 1.93 15.59 +/- 1.22 16.46 +/- 3.87 16.15 +/- 1.44 DR30 MET Station 12.92 +/- 1.18 11.47 +/- 0.40 12.04 +/- 3.35 12.33 +/- 0.99 SFDR01 SW of ISFSI 18.55 +/- 1.59 16.79 +/- 2.08 14.98 +/- 2.82 17.21 +/- 0.81 SFDR02 NNW of ISFSI 18.34 +/- 2.27 17.62 +/- 2.10 16.61 +/- 4.55 19.06 +/- 2.33 SFDR03 North of ISFSI 37.28 +/- 7.19 37.35 +/- 7.54 32.82 +/- 6.58 39.21 +/- 5.28 SFDR04 NE of ISFSI 31.12 +/- 4.76 30.42 +/- 5.07 29.47 +/- 7.83 34.24 +/- 4.60

Missing TLD

'Control Location 55

January 1 - December 31, 2014 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 SFDR05 East of ISFSI 19.18 +/- 2.82 18.84 +/- 4.09 16.68 +/- 1.88 21.53 +/- 2.83 SFDR06 ESE of ISFSI 16.35 +/- 2.23 15.86 +/- 1.72 14.71 +/- 3.80 19.38 +/- 2.62 SFDR07' Visitor's Center 12.36 +/- 1.28 12.13 +1- 1.02 10.34 +/- 0.98 12.71 +/- 0.52 SFDR08 NNW of ISFSI 27.25 +/- 3.56 26.12 +/- 3.21 25.91 +/- 3.01 27.17 +/- 3.77 SFDR09 SSE of ISFSI 14.63 +/- 1.66 12.82 +/- 0.58 12.77 +/- 3.17 21.15 +/- 1.12 SFDR10 NW of ISFSI 31.31 +/- 8.09 24.69 +/- 5.95 25.98 +/- 8.99 31.75 +/- 0.75 SFDR11 WNW ISFSI 25.55 +/- 2.69 23.73 +/- 2.06 24.88 +1- 6.06 23.53 +/- 1.92 SFDR12 WSW of ISFSI 43.64 +/- 6.11 40.70 +/- 7.21 39.83 +/- 11.12 47.20 +/- 11.94 SFDR13 South of ISFSI 19.82 +/- 4.04 21.01 +/- 3.64 21.87 +/- 4.62 28.17 +/- 3.53 SFDR14 SE of ISFSI 15.70 +/- 1.85 13.91 +/- 1.85 14.37 +/- 1.12 35.09 +/- 4.32 SFDR15 ENE of ISFSI 19.83 +/- 2.65 19.08 +/- 4.21 19.23 +/- 6.12 22.09 +/- 4.47 SFDR16 SSW of ISFSI 35.22 +/- 4.28 34.08 +/- 2.62 32.83 +/- 6.98 38.24 +/- 4.95 SFDR17 NNE of ISFSI 42.47 +/- 5.37 37.85 +/- 2.52 40.55 +/- 9.08 42.95 +/- 7.43 SFDR18 West of ISFSI 45.54 +/- 9.87 39.46 +/- 2.48 40.27 +/- 8.14 40.67 +/- 7.18 Control Location 56

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 APPENDIX C Quality Assurance Program Appendix C is a summary of Exelon Industrial Services (EIS) Laboratory's quality assurance program. It consists of Table C-I which is a compilation of the results of the EIS Laboratory's participation in an interlaboratory 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 EIS 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 EIS laboratory's results contained in Table C-l generally agree with the interlaboratory's comparison results within the range of +2a of each other. In addition, all the sets of intercomparison results in the table are in full agreement when they were further evaluated using the NRC Resolution Test Criteria'. The uncertainties for the EIS laboratory's results and Analytics' results are +2a while the ERA laboratory's uncertainty is based on USEPA guidelines 2 .

All the results contained in Table C-2 agree within the range of +/-27 of each other with their respective EIS laboratory original, replicate and/or Teledyne Brown Engineering's split laboratory samples, except for the comparisons of three samples involving Cs-137 results: a miscellaneous ground cover sample at SFB5 collected on 3/24/14, bottom sediment sample at WBS4 collected on 6/17/14, and soil at SFS2 collected on 9/15/14. The original and replicate analysis of the ground cover sample from SFB5 collected on 3/24/14 agree within +2 a of each other and was not detected in the split lab results. Low level Cs-137 was observed in the split lab results of the comparison set for SFS2 collected on 9/15/14 and observed below MDA in the original and duplicate. In the bottom sediment sample, WBS4 collected on 6/17/14, the original and replicate analysis do agree within +/-2 a of each other and one result does not agree within +/-2 a of the split lab results. These minor discrepancies, which have been observed in previous reporting periods, are most probably due to counting statistics and/or the non-homogeneous nature of this type of sample. Other samples whose nature generally preclude sample splitting are marked "**" in the Split Analysis column.

NRC Inspection Manual, Inspection Procedure 84750, March 15, 1994 2 National Standards for Water Proficiency Testing Studies Criteria Document, December 1998 57

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page C-1 Results of Participation in Cross Check Programs ............................................................ 59 C-2 Results of Quality Assurance Program ............................................................................... 62 C-3. Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry ....................... 70 58

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-1 Results of Participation in Cross Check Programs Sample Type and Reported Cross Check Lab Sample Date Units Isotope Observed Laboratory's Results Results 03/20/14 Air Iodine- pCi 1-131 67.0 +/- 5.0 75.1 +/- 1.3 03/20/14 Milk - pCi/L Co-58 240 +/- 16 268 +/- 4.5 Co-60 310 +/- 12 337 +/- 5.7 Zn-65 306 +/- 26 323 +/- 5.4 1-131 86.0 +/- 18 98.5 +/- 1.7 Cs-134 166 +/- 8.0 210 +/- 3.5 Cs-1 37 234 +/- 15 253 +/- 4.2 Ce-141 113 +/- 14 119 +/-2.0 Cr-51 408 +/- 69 491 +/- 8.2 Mn-54 285 +/- 16 297 +/- 5.0 Fe-59 214 +/- 18 219 +/- 3.7 1-131 29.0 +/- 5.0 25.7 +/- 1.6 04/07/14 Water - pCi/L Co-60 62.3+/-4.7 64.2 Zn-65 25.6 +/- 18 23.5 Cs-134 40.2 +/- 3.6 44.3 Cs-137 87.4 +/- 6.8 89.1 Ba-133 86.8 +/- 5.5 87.9 4

05/09/14 Water- pCi/L H-3 2.77 x 104 2.47 x 10 06/12/14 Air Filter- pCi Fe-59 88.0 +/- 9.0 76.4 +/- 1.3 Cr-51 194 +/- 33 189 +/- 3.2 Ce-141 101 +/- 7.0 92.2 +/- 1.5 Cs-137 96.0 +/- 6.0 89.4 +/- 1.5 Cs-1 34 99.0+/-4.0 121 +/-2.0 Zn-65 211 +/- 16 188 +/- 3.1 Co-60 172 +/- 7.0 167 +/- 2.8 Co-58 83.0 +/- 7.0 83.7 +/- 1.4 Mn-54 126 +/- 8.0 116 +/- 1.9 06/12/14 Water - pCi/L Gross Beta 253 +/- 3.4 253 +/- 3.0 59

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-1 Results of Participation in Cross Check Programs Sample Date Sample Type and Reported Cross Check Lab Units Isotope Observed Laboratory's Results Results 07/07/14 Water Cs-134 68.0 +/- 6.0 72.3 1-131 21.0 +/- 7.0 26.1 Ba-133 66.0 +/- 7.0 68.7 Cs-137 174 +/- 13.0 163 Co-60 78.0 +/- 8.0 75.5 Zn-65 94.0 +/- 18.0 82.0 07/07/14 Water - pCi/L Gross Beta 28.3 +/- 1 33.5 08/15/14 Water- pCi/L H-3 1.50 x 106 9.76 x 105 09/11/14 Air Filter Gross Beta 93.2 +/- 2.0 89.8 +/- 1.5 09/22/14 Air Filter- pCi Am-241 34.0 +/- 15 38.6 Co-60 553 +/- 10 523 Cs- 134 631 +/- 11 765 Cs-137 714 +/- 16 647 Zn-65 665 +/- 23 547 10/06/14 Water - pCi/L Co-60 96.0 +/- 4.0 92.1 Zn-65 340 +/- 16 310 Cs-134 78.0 +/- 4.0 89.8 Cs-137 97.0 +/- 5.0 98.8 Ba-133 43.0 +/- 3.0 49.1 12/04/14 Air Filter- pCi Mn-54 148 +/- 10 135 +/- 2.3 Fe-59 127 +/- 11 105 +/- 1.8 Co-58 80.0 +/- 8.0 78.0 +/- 1.3 Co-60 151 +/-7.0 141 +/-2.4 Cr-51 279 +/- 35 243 +/- 4.1 Cs- 134 88.0 +/- 6.0 98.7 +/- 1.7 Cs-137 128 +/- 9.0 119+/-2.0 Ce-141 144 +/- 7.0 131 +/-2.2 Zn-65 207 +/- 18 178 +/- 3.0 60

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-1 Results of Participation in Cross Check Programs Sample Type and Reported Cross Check Lab Sample Date Units Isotope Observed Laboratory's Results Results 12/04/14 Air Iodine 1-131 93.0 +/-4.0 97.3 +/- 1.6 12/04/14 Milk - pCi/L Mn-54 253 +/- 21 225 +/- 3.8 Fe-59 203 +/- 23 175 +/- 2.9 Co-58 141 +/-18 130+/-2.2 Co-60 258 +/- 16 235 +/- 3.9 Cr-51 428 +/- 93 406 +/- 6.8 1-131 114+/-18 95.1 +/-1.6 Cs-134 159+/-11 164+/-2.8 Cs-137 218+/-20 198+/-3.3 Ce-141 248 +/-22 219 +/-3.7 Zn-65 357 +/- 42 297 +/- 5.0 See discussion at the beginning of the Appendix 61

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-2 Results of Quality Assurance Program Sample Type and Location Sample Date Type of Analysis Result Original Analysis Replicate Split Analysis Units Analysis Air Iodine - A3 01/20/14 1-131 pCi/m 3 <MDA <MDA **

3 Air Iodine - A4 01/20/14 1-131 pCi/m <MDA <MDA **

3 Air Iodine - A5 01/20/14 1-131 pCi/m <MDA <MDA **

Air Filter - Al 01/27/14 Gross Beta pCi/m 3 2.1 +/- 0.2 2.1 +/- 0.2 **

3 Air Filter - A2 01/27/14 Gross Beta pCi/m 2.2 +/- 0.2 2.1 +/- 0.2 **

Air Filter - A3 01/27/14 Gross Beta pCi/m 3 2.3 +/- 0.2 2.1 +/- 0.2 **

Air Filter - A4 01/27/14 Gross Beta pCi/m 3 2.2 +/- 0.2 2.4 +/- 0.2 **

3 Air Filter - A5 01/27/14 Gross Beta pCi/m 2.2 +/- 0.2 2.4 +/- 0.2 **

3 Air Filter - SFA1 01/27/14 Gross Beta pCi/m 2.5 +/- 0.2 2.3 +/- 0.2 **

3 Air Filter - SFA2 01/27/14 Gross Beta pCi/m 2.0 +/- 0.2 2.3 +/- 0.2 **

3 Air Filter - SFA3 01/27/14 Gross Beta pCi/m 2.5 +/- 0.2 2.3 +/- 0.2 **

Air Filter - SFA4 01/27/14 Gross Beta pCi/m 3 2.4 +/- 0.2 2.2 +/- 0.2 **

Air Filter - Al 02/03/14 Gamma pCi/m 3 <MDA <MDA <MDA 3

Air Filter - A2 02/03/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - A3 02/03/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - A4 02/03/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - A5 02/03/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - SFA1 02/03/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - SFA2 02/03/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - SFA3 02/03/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - SFA4 02/03/14 Gamma pCi/m <MDA <MDA <MDA

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

62

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-2 Results of Quality Assurance Program Sample Type and Location Sample Date Type of Analysis Units Result Original Analysis Replicate Analysis Split Analysis Air Iodine - Al 02/03/14 1-131 pCi/m 3 <MDA <MDA **

Air Iodine - A2 02/03/14 3 1-131 pCi/m <MDA <MDA **

Air Iodine - A3 02/03/14 1-131 pCi/m 3 <MDA <MDA **

Air Iodine - A4 02/10/14 1-131 pCi/m 3 <MDA <MDA **

3 Air Iodine - A5 02/10/14 1-131 pCi/m <MDA <MDA **

Air Iodine - Al 03/03/14 1-131 pCi/m 3 <MDA <MDA **

3 Air Iodine - A2 03/03/14 1-131 pCi/m <MDA <MDA **

Air Iodine - A3 03/03/14 3 1-131 pCi/m <MDA <MDA **

Air Iodine - A4 3 03/03/14 1-131 pCi/m <MDA <MDA **

3 Air Iodine - A5 03/03/14 1-131 pCi/m <MDA <MDA **

Air Filter - Al 03/10/14 Gross Beta pCi/m 3 2.1 +/- 0.2 2.3 +/- 0.2 **

Air Filter - A2 3 03/10/14 Gross Beta pCi/m 2.2 +/- 0.2 2.2 +/- 0.2 **

Air Filter - A3 3 03/10/14 Gross Beta pCi/m 2.1 +/- 0.2 2.1 +/- 0.2 **

Air Filter - A4 03/10/14 Gross Beta pCi/m 3 2.2 +/- 0.2 2.1 +/- 0.2 **

Air Filter - A5 03/10/14 3 Gross Beta pCi/m 2.3 +/- 0.2 2.4 +/- 0.2 **

Air Filter - SFA1 03/10/14 3 Gross Beta pCi/m 2.5 +/- 0.2 2.5 +/- 0.2 **

Air Filter - SFA2 03/10/14 Gross Beta pCi/m 3 2.3 +/- 0.2 2.4 +/- 0.2 **

Air Filter- SFA3 3 03/10/14 Gross Beta pCi/m 2.3 +/- 0.2 2.3 +/- 0.2 **

3 Air Filter - SFA4 03/10/14 Gross Beta pCi/m 2.4 +/- 0.2 2.4 +/- 0.2 **

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

63

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-2 Results of Quality Assurance Program Sample Type and Location Sample Date Type of Analysis Result Original Analysis Replicate Split Analysis Units Analysis 3

Air Filter - Al 03/17/14 Gross Beta pCi/m 1.8 +/- 0.1 1.9 +/- 0.1 **

3 Air Filter - A2 03/17/14 Gross Beta pCi/m 1.8 +/- 0.1 1.8 +/- 0.1 **

Air Filter - A3 03/17/14 Gross Beta pCi/m 3 2.0 +/- 0.1 2.0 +/- 0.1 **

3 Air Filter - A4 03/17/14 Gross Beta pCi/m 2.1 +/- 0.1 1.9 +/- 0.1 **

3 Air Filter - A5 03/17/14 Gross Beta pCi/m 2.0 +/- 0.1 2.0 +/- 0.1 **

3 Air Filter- SFA1 03/17/14 Gross Beta pCi/m 2.0 +/- 0.1 2.0 +/- 0.1 **

3 Air Filter- SFA2 03/17/14 Gross Beta pCi/m 1.9 +/- 0.1 1.9 +/- 0.1 **

3 Air Filter- SFA3 03/17/14 Gross Beta pCi/m 2.1 +/- 0.1 1.9 +/- 0.1 **

Air Filter- SFA4 03/17/14 Gross Beta pCi/m 3 2.0 +/- 0.1 1.8 +/- 0.1 **

Misc ground coverage -

SFB5 1 03/24/14 Cs-137 pCi/kg 68.4 +/- 23.9 52.1 +/- 21.2 <MDA Soil - SFS5 03/24/14 Cs-137 pCi/kg 221 +/- 31.6 218 +/- 31.0 194 +/- 60.8 Bay Water - WA1 03/31/14 Gamma pCi/L <MDA <MDA <MDA Bay Water - WA2 03/31/14 Gamma pCi/L <MDA <MDA <MDA Oysters - IA3 04/01/14 Gamma pCi/kg <MDA <MDA <MDA Shoreline sediment - WB1 04/02/14 Gamma pCi/kg <MDA <MDA <MDA See discussion at the beginning of the Appendix

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

64

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-2 Results of Quality Assurance Program Sample Type and Location Sample Date Type of Analysis Result Original Analysis Replicate Split Analysis Units Analysis Air Iodine - Al 04/07/14 1-131 pCi/m 3 <MDA <MDA **

Air Iodine - A2 04/07/14 1-131 pCi/m 3 <MDA <MDA **

Air Iodine - A3 04/07/14 1-131 pCi/m 3 <MDA <MDA **

Air Iodine - A4 04/07/14 1-131 pCi/m 3 <MDA <MDA **

3 Air Iodine - A5 04/07/14 1-131 pCi/m <MDA <MDA **

Air Filter - Al 04/21/14 Gross Beta pCi/m 3 1.8 +/- 0.1 1.6 +/- 0.1 **

3 Air Filter - A2 04/21/14 Gross Beta pCi/m 1.7 +/- 0.1 1.7 +/- 0.1 **

Air Filter- A3 04/21/14 Gross Beta pCi/m 3 1.8 +/- 0.1 1.7 +/- 0.1 **

Air Filter - A4 04/21/14 Gross Beta pCi/m 3 1.8 +/- 0.1 1.8 +/- 0.1 **

3 Air Filter- A5 04/21/14 Gross Beta pCi/m 1.9 +/- 0.1 1.9 +/- 0.1 **

Air Filter - SFA1 04/21/14 Gross Beta pCi/m 3 1.8 +/- 0.1 1.8 +/- 0.1 **

Air Filter- SFA2 04/21/14 Gross Beta pCi/m 3 1.8 +/- 0.1 1.9 +/- 0.1 **

3 Air Filter - SFA3 04/21/14 Gross Beta pCi/m 1.9 +/- 0.1 1.8 +/- 0.1 **

Air Filter - SFA4 04/21/14 Gross Beta pCi/me 1.8 +/- 0.1 1.8 +/- 0.1 **

Air Filter- Al 05/05/14 Gross Beta pCi/m 3 1.3 +/- 0.1 1.2 +/- 0.1 **

Air Filter - A2 05/05/14 Gross Beta pCi/m 3 1.3 +/- 0.1 1.5 +/- 0.1 **

Air Filter- A3 05/05/14 Gross Beta pCi/m 3 1.4 +/- 0.1 1.2 +/- 0.1 **

Air Filter - A4 05/05/14 Gross Beta pCi/m 3 1.3 +/- 0.1 1.4 +/- 0.1 **

Air Filter - A5 05/05/14 Gross Beta pCi/m 3 1.4 +/- 0.1 1.4 +/- 0.1 **

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

65

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-2 Results of Quality Assurance Program Anlss Result OinaAalss Replicate Split Analysis Sample Type and Location Sample Date Type of Analysis Units Original Analysis Analysis Air Filter- SFA1 05/05/14 Gross Beta pCi/m 3 1.3 +/- 0.1 1.3 +/- 0.1 **

3 Air Filter- SFA2 05/05/14 Gross Beta pCi/m 1.6 +/- 0.1 1.5 +/- 0.1 **

3 Air Filter- SFA3 05/05/14 Gross Beta pCi/m 1.4 +/- 0.1 1.4 +/- 0.1 **

3 Air Filter- SFA4 05/05/14 Gross Beta pCi/m 1.5 +/- 0.1 1.4 +/- 0.1 **

Air Iodine - Al 05/05/14 1-131 pCi/m 3 <MDA <MDA **

3 Air Iodine - A2 05/05/14 1-131 pCi/m <MDA <MDA **

3 Air Iodine - A3 05/05/14 1-131 pCi/m <MDA <MDA **

3 Air Iodine - A4 05/05/14 1-131 pCi/m <MDA <MDA **

Air Iodine - A5 05/05/14 1-131 pCi/m 3 <MDA <MDA **

3 Air Iodine - Al 06/09/14 1-131 pCi/m <MDA <MDA **

3 Air Iodine - A2 06/09/14 1-131 pCi/m <MDA <MDA **

3 Air Iodine - A4 06/09/14 1-131 pCi/m <MDA <MDA **

Air Iodine - A5 06/09/14 1-131 pCi/m 3 <MDA <MDA **

Cabbage- IB1 06/09/14 Gamma pCi/kg <MDA <MDA <MDA Cabbage- 1B7 06/09/14 Gamma pCi/kg <MDA <MDA <MDA Tree Leaves - 1B4 06/09/14 Gamma pCi/kg <MDA <MDA <MDA Bottom sediment - WBS2 06/17/14 Cs-137 pCi/kg 128 +/- 40.4 119 +/- 46.6 263 +/- 131 1 215 +/-87.0 Bottom sediment - WBS4 06/17/14 Cs-137 pCi/kg 117 +/- 55.5 83.6 +/- 37.8

'See discussion at the beginning of the Appendix

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

66

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-2 Results of Quality Assurance Program Sample Type and Location Sample Date Type of Analysis Result Original Analysis Replicate Split Analysis Units Analysis Oysters - IA3 06/17/14 Gamma pCi/kg <MDA <MDA <MDA Oysters - IA6 06/17/14 Gamma pCi/kg <MDA <MDA <MDA Gamma field - DR05 07/01/14 TLD mR/90 days 12.0 +/- 1.1 11.6 +/- 1.7 **

Gamma field - DR06 07/01/14 TLD mR/90 days 11.0 +/- 1.4 10.2 +/-0.5 **

Gamma field - DR07 07/01/14 TLD mR/90 days 10.5 +/- 0.8 10.1 +/- 0.7 **

Gamma field - DR08 07/01/14 TLD mR/90 days 15.3 +/- 1.5 14.6 +/- 1.1 **

Gamma field - DR09 07/01/14 TLD mR/90 days 10.8 +/- 1.2 10.4 +/- 0.9 **

Gamma field - DR10 07/01/14 TLD mR/90 days 11.0 +/- 0.8 10.3+/-1.0 **

Gamma field - DR11 07/01/14 TLD mR/90 days 11.4 +/- 1.0 10.6 +/-0.9 **

Gamma field - DR29 07/01/14 TLD mR/90 days 14.4 +/- 1.2 14.2 +/- 0.6 **

Gamma field - DR31 07/01/14 TLD mR/90 days 14.6 +/- 0.6 14.8 +/- 1.1 **

Gamma field - SFDR14 07/01/14 TLD mR/90 days 14.2 +/- 1.9 13.2 +/- 1.2 **

Gamma field - SFDR15 07/01/14 TLD mR/90 days 19.4 +/- 4.3 19.8 +/- 2.7 **

Air Filter - Al 08/17/14 Gamma pCi/m 3 <MDA <MDA <MDA 3

Air Filter - A2 08/17/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - A3 08/17/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - A4 08/17/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - A5 08/17/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - SFA1 08/17/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - SFA2 08/17/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - SFA3 08/17/14 Gamma pCi/m <MDA <MDA <MDA 3

Air Filter - SFA4 08/17/14 Gamma pCi/m <MDA <MDA <MDA

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

67

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-2 Results of Quality Assurance Program Sample Type and Location Sample Date Type of Analysis Units ReUit Oiia nlss Replicate Analysis Split Analysis Oysters - IA3 08/18/14 Gamma pCi/kg <MDA <MDA <MDA Oysters - IA6 08/18/14 Gamma pCi/kg <MDA <MDA <MDA Perch - IA1 08/18/14 Gamma pCi/kg <MDA <MDA <MDA Perch - IA4 08/18/14 Gamma pCi/kg <MDA <MDA <MDA Bay Water - WA1 09/05/14 Gamma pCi/L <MDA <MDA <MDA Bay Water - WA2 09/05/14 Gamma pCi/L <MDA <MDA <MDA Misc ground coverage -

SFB2 09/15/14 Gamma pCi/kg <MDA <MDA <MDA Misc ground coverage -

SFB4 09/15/14 Gamma pCi/kg <MDA <MDA <MDA Misc ground coverage -

SFB5 09/15/14 Gamma pCi/kg <MDA <MDA <MDA Soil - SFS2' 09/15/14 Gamma pCi/kg <MDA <MDA 100+/- 45 Soil - SFS4 09/15/14 Gamma pCi/kg <MDA <MDA <MDA Soil - SFS5 09/15/14 Cs-137 pCi/kg 132 +/- 27.7 133 +/- 31.0 130 +/- 53.0 Oysters - IA3 10/08/14 Gamma pCi/kg <MDA <MDA <MDA Oysters - IA6 10/08/14 Gamma pCi/kg <MDA <MDA <MDA See discussion at the beginning of the Appendix 68

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table C-2 Results of Quality Assurance Program Sample Type and Location Sample Date Type of Analysis Result Original Analysis Replicate Split Analysis Units Analysis Gamma field - DR05 01/08/15 TLD mR/90 days 14.4 +/- 1.6 13.9 +/- 2.7 **

Gamma field - DR06 01/08/15 TLD mRn90 days 12.3 +/- 1.3 11.7+/-3.0 **

Gamma field - DR07 01/08/15 TLD mR/90 days 12.4 +/- 1.8 11.9 +1-1.4 **

Gamma field - DR08 01/08/15 TLD mR/90 days 18.3 +/- 2.4 17.3 +/- 2.9 **

Gamma field - DR09 01/08/15 TLD mR/90 days 12.8 +/- 1.1 13.2 +/- 1.8 **

Gamma field - DR10 01/08/15 TLD mR/90 days 12.3 +/- 1.0 12.8 +/- 1.1 **

Gamma field - DR1 1 01/08/15 TLD mR/90 days 13.1 +/- 1.2 12.0+/-1.7 **

Gamma field - DR29 01/08/15 TLD mR/90 days 17.9 +/- 2.0 17.4 +/- 2.5 **

Gamma field - DR31 01/08/15 TLD mR/90 days 18.0 +/- 1.6 17.0 +/- 1.9 **

Gamma field - SFDR14 01/08/15 TLD mR/90 days 41.4 +/- 3.7 40.4 +/- 3.3 **

Gamma field - SFDR15 01/08/15 TLD mR/90 days 26.1 +/- 6.4 24.6 +/- 4.7 **

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

69

January 1 - December 31, 2014 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 H-3 175 -- -- -- -- --

Na-22 1 8 3 12 6 5 Cr-51 12 105 4 104 50 63 Mn-54 1 9 3 12 5 4 Co-58 1 9 4 9 4 5 Fe-59 3 28 9 24 10 12 Co-60 1 9 4 12 5 6 Zn-65 2 20 8 25 10 9 Nb-95 1 12 7 14 6 9 Zr-95 2 18 8 20 9 9 Ru-106 9 75 30 90 41 40 Ag-11Om 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 70

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 APPENDIX D 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

appendix, Table D-1 Discussion Land Use Survey A Land Use Survey was conducted to identify, Distance From Plant within a distance of 5 miles, the location of the (miles) nearest milk animal, the nearest residence, and Sector Residence Garden the nearest garden greater than 50 m 2 in each of SE 1.5 1.5 the nine sectors over land. A detailed description SSE 1.6 1.6 of the Land Use Survey is given in a separate S 1.6 1.8 document (Ref. 9). The position of the nearest SSW 1.5 1.6 residence and garden in each sector out to 5 miles SW 1.1 1.1 is given in the adjacent table. There are no WSW 1.3 1.4 animals producing milk for human consumption W 1.3 1.6 within the 5 mile radius. The nearest garden WNW 2.7 2.7 location has changed in the NW, W, S and SSE NW 2.0 2.0 sectors since 2013 and are still located within the 5-mile radius.

The closest residence is situated in the SW sector and the nearest garden is also in the SW sector, which is one of the least prevalent wind directions. In the S, SSE, and SE sectors, there is the highest probability of wind blowing from the direction of the plant. The two gardens used for vegetable samples by the 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.

71

January 1 - December 31, 2014 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. 6). 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.

Table E-4 through E- 10 contain analytical results for samples taken from the various radiological pathways (i.e., aquatic, atmospheric, terrestrial, and direct radiation) surrounding the plant. In general, these results continue the historical trends previously observed in the official sites of the CCNPP REMP and ISFSI.

Table E- 10 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 17 on-site piezometer tubes in 2014. These were identified as Piezometers 11 - 30 on Figure E-i, Site Map Groundwater Monitoring Wells. 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 piezometer tubes sampled, only # 11 piezometer showed any plant-related activity. This activity was previously identified and evaluated in December of 2005. The activity consists of tritium originating from normal radiological waste 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 2014 analysis results for tritium are shown in Table E-11, and analysis results for gamma emitting radionuclides are shown in Table E-12.

72

January 1 - December 31, 2014 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 Po wer P lant .............................................................................................................................. 74 E-2 Synopsis of 2014 Calvert Cliffs Nuclear Power Plant Non-Tech Spec Radiological Environm ental M onitoring Program ................................................................................... 75 E-3 Annual Summary for Calvert Cliffs Nuclear Power Plant Units 1 & 2 Non-Tech Spec Radiological Environmental Monitoring Program ............................................................. 76 E-4 Concentration of Gamma Emitters in Bottom Sediment ................................................... 77 E-5 Concentration of Iodine- 131 in Filtered Air ....................................................................... 78 E-6 Concentration of Beta Emitters in Air Particulates ............................................................. 80 E-7 Concentration of Gamma Emitters in Air Particulates ..................................................... 82 E-8 Concentration of Tritium and Gamma Emitters in Taylorslsland Well Water ................... 83 E -9 D irect R adiation ....................................................................................................................... 84 E-10 Direct Radiation from Resin Storage Area ......................................................................... 85 E-1 1 Concentration of Tritium in Groundwater ......................................................................... 86 E-12 Gross Concentration of Gamma Emitters in Groundwater ................................................. 87 Figure Title Page E-1 Site Map Groundwater Monitoring Wells ......................................................................... 88 73

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 TABLE E-1 Locations of Non-Tech Spec Environmental Sampling Stations for Calvert Cliffs Nuclear Power Plant Station Description Distance' Direction' (KM) (Miles (Sector)

A6 Long Beach 4.4 2.7 NW A7 Taylors Island Anderson'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, Anderson'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 RPDR1O Resin Storage Area - South Fence Lower 0.7 0.4 SW RPDR11 Resin Storage Area - East Fence Left 0.7 0.4 SW RPDR12 Resin Storage Area - East Fence Right 0.7 0.4 SW WBS2 Discharge Area 0.3 0.2 N WBS4 Camp Conoy/Rocky Point 3.0 1.9 SE WW1 Taylors Island, Anderson's Property 12.6 7.8 ENE 1 Distance and direction from the central point between the two containment buildings.

74

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table E-2 Synopsis of 2014 Calvert Cliffs Nuclear Power Plant Non-Tech Spec Radiological Environmental Monitoring Program Sample Type Sampling, Number of Number Analysis Analysis Frequency' Number Frequency Locations Collected Analyzed Aquatic Aquatic Environment Bottom Sediment SA 2 4 Gamma SA 4 Atmospheric Environment 2

Air Iodine W 7 364 1-131 W 364 3

Air Particulates W 3 156 Gross Beta W 156 Gamma MC 36 Direct Radiation Ambient Radiation Q 20 480 TLD Q 480 Terrestrial Environment Ground water M 1 12 Gamma M 12 H-3 M 12 1W=weekly, M=monthly, Q=quarterly, SA=semiannual, A=annual, C=composite 2 The collection device contains silver Zeolite 3 Beta counting is performed after >72 hour decay, Gamma spectroscopy performed on monthly composites of weekly samples 75

January 1 - December 31, 2014 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 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 1 Mean (F)/Range (Unit of Analyses (F)/Rangel Mean Measurement) Performed Name/Distance 2 &

Direction Aquatic Environment Bottom Sediment Gamma (4) 17 131 (2/2) Discharge Area 131 (2/2) 121 (2/2)

(pCi/kg) Cs-137 (128-133) WBS2 (128-133) (117-126) 0.3 km N Atmospheric Environment Air Particulates Gross Beta (156) 0.5 2.0 (104/104) TAYLOR'S 2.6 (52/52) 2.6 (52/52)

(10.2 pCi/m 3) (1.1-3.8) ISLAND TI (1.2-8.5) (1.2-8.5) 12.6 km ENE Direct Radiation Ambient Radiation TLD (480) 20.67 (480/480) East Fence Left 55.67 (24/24)

(mR/90 days) (7.87-73.04) RPDR11 (39.76-73.04) 0.7 km SW Mean and range based upon detectable measurements only. Fraction (F) of detectable measurements at specified location is indicated in parentheses.

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

76

January 1 - December 31, 2014 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 Date Cs-137 Gamma Emitters WBS2 Discharge Area 6/17/2014 128+/-40 10/8/2014 133+/-69 WBS4 1 Camp Conoy/ Rocky Point 6/17/2014 117+/-55 10/8/2014 126 +/- 58 Control Location

All Non-Natural Gamma Emitters <MDA 77

January 1 - December 31, 2014 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/m 3 +/- 2a)

Start Date Stop Date CA LB SFA1 SFA21 SFA3 SFA4 TI1 Cambridge LONG BEACH MET Station Visitors Center NNW of ISFSI SSE of ISFSI TAYLOR'S ISLAND 12/30/2013 1/6/2014 1/6/2014 1/13/2014 1/13/2014 1/20/2014 1/20/2014 1/27/2014 1/27/2014 2/3/2014

/

2/3/2014 2/10/2014

k

2/10/2014 2/17/2014 2/17/2014 2/24/2014 2/24/2014 3/3/2014

i 3/3/2014 3/10/2014 "*

3/10/2014 3/17/2014 3/17/2014 3/24/2014 3/24/2014 3/31/2014

*k 3/31/2014 4/7/2014 4/7/2014 4/14/2014 4/14/2014 4/21/2014 *i 4/21/2014 4/28/2014 "*

4/28/2014 5/5/2014 5/5/2014 5/12/2014

*k 5/12/2014 5/19/2014 5/19/2014 5/26/2014 5/26/2014 6/2/2014 6/2/2014 6/9/2014 6/9/2014 6/16/2014 *k

k 6/16/2014 6/23/2014 "*

6/23/2014 6/30/2014 Control Location

<MDA 78

January 1 - December 31, 2014 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 CA LB SFA1 SFA21 SFA3 SFA4 TI 1 Cambridge LONG BEACH MET Station Visitors Center NNW of ISFSI SSE of ISFSI TAYLOR'S ISLAND 6/30/2014 7/7/2014 -/¢ 'k '1¢ 7/7/2014 7/14/2014 "*

"it "it 'k 7/14/2014 7/21/2014 "*

"it "it 'k 7/21/2014 7/28/2014 7/28/2014 8/4/2014 8/4/2014 8/11/2014 8/11/2014 8/18/2014 8/18/2014 8/25/2014 8/25/2014 9/1/2014 9/1/2014 9/8/2014 9/8/2014 9/15/2014 9/15/2014 9/22/2014 9/22/2014 9/29/2014 9/29/2014 10/6/2014 10/6/2014 10/13/2014 10/13/2014 10/20/2014 10/20/2014 10/27/2014 10/27/2014 11/3/2014 11/3/2014 11/10/2014 11/10/2014 11/17/2014 11/17/2014 11/24/2014 *k 11/24/2014 12/1/2014 "*

i 12/1/2014 12/8/2014 "*

12/8/2014 12/15/2014 "* "*

12/15/2014 12/22/2014 12/22/2014 12/29/2014 Control Location

<MDA 79

January 1 - December 31, 2014 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 CA LB TI1 Cambridge LONG BEACH TAYLOR'S ISLAND 12/30/2013 1/6/2014 1.8 +/- 0.1 2.1 +/-0.1 2.1 +/-0.1 1/6/2014 1/13/2014 2.7 +/- 0.1 2.8 +/- 0.2 2.5 +/- 0.1 1/13/2014 1/20/2014 2.5 +/- 0.1 2.2 +/- 0.1 2.4 +/- 0.1 1/20/2014 1/27/2014 2.4 +/- 0.2 2.3 +/- 0.2 2.7 +/- 0.2 1/27/2014 2/3/2014 2.6 +/- 0.1 2.3 +/- 0.1 2.2 +/- 0.1 2/3/2014 2/10/2014 3.6 +/- 0.2 3.8 +/- 0.2 3.6 +/- 0.2 2/10/2014 2/17/2014 2.8 +/- 0.1 2.5 +/- 0.1 2.8 +/- 0.1 2/17/2014 2/24/2014 1.7 +/- 0.1 1.6 +/- 0.1 1.7 +/- 0.1 2/24/2014 3/3/2014 3.3 +/- 0.1 3.2 +/- 0.1 3.3 +/- 0.1 3/3/2014 3/10/2014 2.3 +/- 0.2 2.3 +/- 0.2 2.4 +/- 0.2 3/10/2014 3/17/2014 2.1 +/-0.1 1.8 +/- 0.1 2.0 +/- 0.1 3/17/2014 3/24/2014 2.0 +/- 0.2 2.0 +/- 0.2 2.1 +/-0.2 3/24/2014 3/31/2014 1.8 +/- 0.1 1.7 +/- 0.1 1.7 +/- 0.1 3/31/2014 4/7/2014 1.6 +/- 0.2 1.8 +/- 0.2 2.0 +/- 0.2 4/7/2014 4/14/2014 2.1 +/- 0.1 2.1 +/-0.1 3.6 +/- 0.2 4/14/2014 4/21/2014 1.6 +/- 0.1 1.8 +/- 0.1 2.2 +/- 0.2 4/21/2014 4/28/2014 2.0 +/- 0.1 1.9 +/- 0.1 2.3 +/- 0.2 4/28/2014 5/5/2014 1.1 +/-0.3 1.5 +/- 0.1 1.8 +/- 0.2 5/5/2014 5/12/2014 1.7 +/-0.1 2.0 +/- 0.1 2.8 +/- 0.2 5/12/2014 5/19/2014 2.1 +/- 0.2 1.8 +/- 0.1 4.0 +/- 0.3 5/19/2014 5/26/2014 2.2 +/- 0.1 2.1 +/-0.1 3.7 +/- 0.2 5/26/2014 6/2/2014 1.3 +/- 0.1 1.5 +/- 0.1 1.6 +/- 0.1 6/2/2014 6/9/2014 1.4 +/-0.1 1.4 +/- 0.2 1.8 +/- 0.2 6/9/2014 6/16/2014 1.1 +/-0.1 1.3 +/- 0.1 2.0 +/- 0.2 6/16/2014 6/23/2014 2.2 +/- 0.1 2.5 +/- 0.1 8.5 +/- 0.5 6/23/2014 6/30/2014 1.4 +/- 0.1 1.4 +/- 0.1 2.7 +/- 0.2 6/30/2014 7/7/2014 2.4 +/- 0.3 1.9 +/- 0.1 2.8 +/- 0.2 7/7/2014 7/14/2014 2.0 +/- 0.2 2.2 +/- 0.1 7.0 +/- 0.5 7/14/2014 7/21/2014 1.5 +/- 0.1 1.4 +/- 0.1 3.6 +/- 0.3 7/21/2014 7/28/2014 1.8 +/- 0.1 1.8 +/- 0.1 3.1 +/- 0.2 7/28/2014 8/4/2014 1.6 +/-0.1 1.3 +/- 0.1 1.7 +/- 0.2 8/4/2014 8/11/2014 2.4 +/- 0.1 2.4 +/- 0.1 3.2 +/- 0.2 8/11/2014 8/18/2014 2.1 +/-0.1 1.9 +/- 0.1 2.0 +/- 0.1 8/18/2014 8/25/2014 1.4 +/- 0.1 1.6 +/- 0.1 1.6 +/- 0.1 8/25/2014 9/1/2014 2.0 +/- 0.1 1.9 +/- 0.1 2.0 +/- 0.1 Control Location 80

January 1 - December 31, 2014 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 CA LB TI' Cambridge LONG BEACH TAYLOR'S ISLAND 9/1/2014 9/8/2014 1.9 +/- 0.1 1.7 +/- 0.1 2.0 +/- 0.1 9/8/2014 9/15/2014 1.3 +/- 0.1 1.1 +/-0.1 1.2 +/- 0.1 9/15/2014 9/22/2014 1.5 +/- 0.1 2.3 +/- 0.1 2.5 +/- 0.2 9/22/2014 9/29/2014 1.8 +/- 0.1 1.6 +/- 0.1 2.2 +/- 0.1 9/29/2014 10/6/2014 1.9 +/- 0.1 1.9 +/- 0.1 2.1 +/- 0.2 10/6/2014 10/13/2014 2.3 +/- 0.1 2.5 +/- 0.1 2.6 +/- 0.2 10/13/2014 10/20/2014 1.7 +/- 0.1 1.6 +/- 0.1 1.8 +/- 0.1 10/20/2014 10/27/2014 1.8 +/- 0.1 1.7 +/- 0.1 2.8 +/- 0.2 10/27/2014 11/3/2014 2.2 +/- 0.1 1.9 +/- 0.1 2.0 +/- 0.1 11/3/2014 11/10/2014 2.3 +/- 0.1 2.7 +/- 0.1 2.5 +/- 0.1 11/10/2014 11/17/2014 1.7 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 11/17/2014 11/24/2014 2.4 +/- 0.1 2.6 +/- 0.1 2.4 +/- 0.1 11/24/2014 12/1/2014 2.1 +1-0.1 2.1 +/- 0.1 2.4 +/- 0.1 12/1/2014 12/8/2014 2.2 +/- 0.1 2.4 +/- 0.1 2.4 +/- 0.1 12/8/2014 12/15/2014 2.2 +/- 0.1 2.2 +/- 0.1 2.2 +/- 0.1 12/15/2014 12/22/2014 2.1 +/-0.1 2.4 +/- 0.1 2.3 +/- 0.1 12/22/2014 12/29/2014 2.0 +/- 0.1 2.0 +/- 0.1 2.1 +/-0.1 Control Location 81

January 1 - December 31, 2014 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 Date CA LB TI' Cambridge LONG BEACH TAYLOR'S ISLAND 2/3/2014 * *

3/3/2014 * *

3/31/2014 * *

4/28/2014 * *

6/2/2014 * *

6/30/2014 * *

8/4/2014 * *

9/1/2014 * *

9/29/2014 * *

11/3/2014 * *

12/1/2014 * *

12/29/2014 * *

Control Location

All Non-Natural Gamma Emitters <MDA 82

January 1 - December 31, 2014 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 pCi/L +/- 2cr)

Sample Date Gamma Emitters H-3 1/23/2014 <303 2/19/2014 * <303 3/19/2014 * <301 4/21/2014 * <304 5/28/2014 * <304 6/16/2014 * <306 7/21/2014 * <150 8/18/2014 * <152 9/15/2014 * <150 10/20/2014 * <155 11/10/2014 * <154 12/15/2014 * <145

Non-Natural Gamma Emitters <MDA 83

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table E-9 Direct Radiation (Results in units of mR/90 days +/- 2a)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter DR24 Rt. 4 and Parran Rd. 11.74 +/- 0.48 11.90 +/- 1.48 11.65 +/- 2.93 12.86 +/- 1.38 DR25 Camp Conoy Guard 13.22 +/- 1.35 12.79 +/- 0.28 9.93 +/- 1.73 13.71 +/- 1.30 House DR26 Rt. 235 and Clark's 10.99 +/- 0.83 10.86 +/- 0.31 9.81 +/- 1.20 11.64 +/- 1.17 Landing Road DR27 Rt. 231 and Rt. 4 12.42 +/- 1.58 11.44 +/- 0.83 10.58 +/- 1.80 11.88 +/- 0.73 DR28 Taylors Is. Siren #35 13.71 +/- 0.92 13.31 +/- 0.81 13.39 +/- 2.11 15.34 +/- 1.03 DR29 Taylors Is. Siren #38 15.09 +/- 1.27 14.18 +/- 1.16 14.26 +/- 0.94 15.01 +/- 0.98 DR31 Cambridge 14.55 +/- 1.23 14.33 +/- 0.68 13.73 +/- 0.87 15.69 +/- 0.46 DR32 Twining Property, 14.26 +/- 1.28 14.29 +/- 1.07 14.81 +/- 2.51 15.57 +/- 1.34 Taylors Island DR33 P. A. Ransome Property 15.20 +/- 0.96 14.91 +/- 1.10 14.88 +/- 1.95 16.05 +/- 1.35 DR34 Shoreline at Barge Rd. 10.27 +/- 1.13 9.44 +/- 0.52 7.87 +/- 1.80 10.10 +/- 1.08 OSG1 North of Old Steam 19.43 +/- 1.96 17.64 +1- 0.79 16.80 +/- 2.54 18.45 +/- 0.53 Generator Storage Facility OSG2 West of Old Steam 15.43 +/- 2.73 15.78 +/- 1.50 16.97 +/- 2.70 15.98 +/- 2.47 Generator Storage Facility 84

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table E-10 Direct Radiation from Resin Storage Area (Results in units of mR/90 days +/- 2ar)

Site Code Location First Quarter Second Quarter Third Quarter Fourth Quarter RPDR05 North Fence Lower 41.41 +/- 2.77 32.49 +/- 2.74 34.03 +/- 11.05 30.01 +/- 0.73 RPDR06 North Fence Upper 23.33 +/- 2.81 16.30 +/- 1.31 17.22 +/- 3.53 16.29 +/- 0.68 RPDR07 West Fence Right 30.56 +/- 2.21 28.37 +/- 1.36 22.08 +/- 3.51 24.50 +/- 2.02 RPDR08 West Fence Left 25.14 +/- 1.75 20.51 +/- 2.10 17.81 +/- 1.90 19.75 +/- 1.84 RPDR09 South Fence Upper 35.11 +/- 1.91 28.27 +/- 3.35 23.04 +/- 1.55 27.11 +/- 3.26 RPDR10 South Fence Lower 51.86 +/- 3.49 38.63 +/- 4.52 27.97 +/- 2.94 42.47 +/- 2.31 RPDR11 East Fence Left 61.21 +/- 6.08 48.69 +/- 3.03 39.76 +/- 4.77 73.04 +/- 9.75 RPDR12 East Fence Right 30.63 +/- 2.98 26.13 +/- 2.19 23.76 +/- 2.30 22.14 +/- 1.05 85

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table E-11 Concentration of Tritium in Groundwater (Results in units of pCi/L)

By Piezometer Tube Locations Sample 11 12 13 15 18 19 20 21 22 23 24 25 26 27 28 29 30 Date 3/02/2014 478 II 5/19/2014 # ND ND ND ND ND ND ND ND 6/24/2014 ND ND ND ND ND ND ND ND ND 7/18/2014 825 # # # # # # # ND ND ND ND ND ND ND ND 8/16/2014 ND ND ND ND ND ND ND ND ND # # ND # # ND ND ND 8/29/2014 ND ND ND ND ND ND ND ND ND ND ND # ND ND # # #

11/22/2014 1570 ND ND ND ND ND ND ND ND 12/13/2014 ND ND ND ND ND ND ND ND ND 4Tritium Less than Minimum Detectable Activity (<MDA)

NDNo Data - Quarterly sample obtained as required.

86

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Table E-12 Gross Concentration of Gamma Emitters in Groundwater (Results in units of pCi/L +/- 2a)

By Piezometer Tube Locations Sample 11 12 13 15 18 19 20 21 22 23 24 25 26 27 28 29 30 Date 3/02/2014

5/19/2014 *

* *

ND ND ND ND ND ND ND ND 6/24/2014 ND ND ND ND ND ND ND ND ND * * * * * * *

7/18/2014

8/16/2014 ND ND ND ND ND ND ND ND ND

ND ND ND ND 8/29/2014 ND ND ND ND ND ND ND ND ND ND ND ND ND 11/22/2014

ND ND ND ND ND ND ND ND 12/13/2014 ND ND ND ND ND ND ND ND ND

All Non-Natural Gamma Emitters <MDA No No Data - Quarterly sample obtained as required.

87

January 1 - December 31, 2014 Docket Nos. 50-317/50-318/72-8 Figure E-1 Site Map Groundwater Monitoring Wells MN" 6 PAl MHO qw-[ Tube #271 r.PAIIS K*-

m U

6

. EL 4-.*

sk" toIOCMJL to OF A&L 88

ML15133A167

Contents

Text

Subject:

References:

Attachment:

SUMMARY

Navigation menu

ML15133A167

Text

Subject:

References:

Attachment:

SUMMARY

Navigation menu

Search