Text

Independent Spent Fuel Storage Installation Annual Radiological Environment Operating Report and Annual Radioactive Effluent Release Report for 2012
	ML13144A190
Person / Time
Site:	Maine Yankee
Issue date:	03/31/2013
From:	; Radiological Safety & Control Services
To:	; Office of Nuclear Material Safety and Safeguards
Shared Package
ML131440210	List: ML13141A580; ML13144A190;
References
	OMY-13-035
	Download: ML13144A190 (55)
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MAINE YANKEE INDEPENDENT SPENT FUEL STORAGE INSTALLATION License No. DPR-36 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT January - December 2012

ý\\RSCS R~adiation Safety & Control Services March 2013 Prepared by:

Radiological Safety & Control Services 91 Portsmouth Avenue Stratham, NH 03885-2468

EXECUTIVE

SUMMARY

The Maine Yankee Independent Spent Fuel Storage Installation (ISFSI) has been in operation since 2001. All fuel has been transferred into dry storage casks and placed at the Independent Spent Fuel Storage Installation. The Radiological Environmental Monitoring Program (REMP) for the Maine Yankee ISFSI located in Wiscasset, ME was continued for the period January through December 2012 in compliance with the Maine Yankee Off-Site Dose Calculation Manual (ODCM).

No changes were made to the ODCM during 2012. By design, there are no liquid or gaseous effluents associated with the operation of the ISFSI. Therefore, the ODCM only requires monitoring of direct exposure from the facility. TLDs were used to measure direct gamma exposure at nine locations in the vicinity of the ISFSI and one control location 5.2 kilometers away. The results of these measurements showed no significant change in exposure rates and potential doses to members of the public during the monitoring period. The results of the monitoring performed in 2012 also show that operating the Maine Yankee ISFSI results in only a small fraction of the 40 CFR Part 190 and 10 CFR Part 72.104 direct radiation dose limit of 25 mrem/year to members of the public.

MY 2012 Annual REO Report Page 2 of 39

TABLE OF CONTENTS Section Title Page 1.0 INTRO DUCTIO N............................................................................

6 2.0 GENERAL ISFSI AND SITE INFORMATION................................. 7 3.0 PROGRAM DESIGN.......................................................................

7 3.1 M O NITO RING ZONES................................................................................... 7 3.2 PATHW AYS M ONITORED.............................................................................

8

3.3 DESCRIPTION

OF MONITORING PROGRAM.................................................... 8 4.0 RADIOLOGICAL DATA

SUMMARY

TABLES............................. 13 5.0 ANALYSIS OF ENVIRONMENTAL RESULTS............................. 38 5.1 SAMPLING PROGRAM DEVIATIONS............................................................

38 5.2 DIRECT RADIATION PATHWAY.................................................................... 38

6.0 REFERENCES

39 MY 2012 Annual REO Report Page 3 of 39

LIST OF TABLES Table Title Page 3.1 Radiological Environmental Monitoring Program...................... 9 3.2 Radiological Environmental Monitoring Locations................. 10 4.1 TLD Measurements by Quarter..................................................

14 4.2 Exposure Rates from TLD Measurements................................

15 4.3 Environmental TLD Data Summary...........................................

16 4.4 Direct Dose from ISFSI Operations...........................................

17 MY 2012 Annual REO Report Page 4 of 39

LIST OF FIGURES Figure Title Page 3.1 Radiological Environmental Monitoring Locations (w ithin 0.28 km )...........................................................................

11 3.2 Direct Radiation Monitoring Locations (outside 1 km ).............................................................................

12 4.1 Exposure Rate Trend at TL-1-02..................................................

18 4.2 Exposure Rate Trend at TL-1-04................................................

20 4.3 Exposure Rate Trend at TL-I-06..................................................

22 4.4 Exposure Rate Trend at TL-1-08..................................................

24 4.5 Exposure Rate Trend at TL-1-10..................................................

26 4.6 Exposure Rate Trend at TL-1-12..................................................

28 4.7 Exposure Rate Trend at TL-1-14................................................

30 4.8 Exposure Rate Trend at TL-1-15..................................................

32 4.9 Exposure Rate Trend at TL-1-16..................................................

34 4.10 Exposure Rate Trend at Control LocationTL-O-36.................. 36 MY 2012 Annual REO Report Page 5 of 39

1.0 INTRODUCTION

This report summarizes the findings of the Radiological Environmental Monitoring Program (REMP) conducted by Maine Yankee in the vicinity of the Independent Spent Fuel Storage Installation in Wiscasset, Maine during the calendar year 2012. It is submitted annually in compliance with Appendix A, of the Off-site Dose Calculation Manual (ODCM). The remainder of this report is organized as follows:

Section 2:

Section 3:

Section 4:

Provides a brief description of the Maine Yankee site and its environs.

Provides a description of the overall REMP design. Included is a summary of the requirements for REMP sampling, tables listing routine TLD monitoring locations with compass sectors and distances from the ISFSI, and maps showing the location of each of the TLD monitoring locations.

Provides a complete set of TLD data showing measured results (mR), TLD data converted to exposure rates (pR per hour) and calculated doses (mrem per year). This section also provides the summarized exposure rate data in the format specified by the NRC Branch Technical Position on Environmental Monitoring (Reference 1).

Section 5:

Provides the results of the monitoring program. The performance of the program in meeting ODCM requirements is discussed, and the data acquired during the year is analyzed.

Section 6:

References MY 2012 Annual REO Report Page 6 of 39

2.0 GENERAL ISFSI AND SITE INFORMATION The Maine Yankee Independent Spent Fuel Storage Installation (ISFSI) is located in the town of Wiscasset, Lincoln County, Maine, approximately six miles northeast of Bath, Maine. The site vicinity is rural and lightly populated.

The ISFSI site is located near Bailey Point, a peninsula bounded to the east by the Back River and to the west by a shallow inlet known as Bailey Cove, both of which are part of the Montsweag Bay-Sheepscot River Estuary. Bailey point is an elongated bedrock ridge with flat or gently rolling topography rising to an average elevation of about 25 feet above sea level.

The Radiological Environmental Monitoring Program (REMP) for the ISFSI began pre-operational measurements in the 4th quarter of 1999, approximately 2 years prior to the initial spent fuel transfer to the ISFSI. The ISFSI REMP has been in continuous operation since this transfer began.

3.0 PROGRAM DESIGN The Radiological Environmental Monitoring Program (REMP) for the Maine Yankee ISFSI was designed to provide assurance to regulatory agencies and the public that the station's environmental impact is known and within anticipated limits. The direct dose limit for members of the public from operation of the ISFSI is 25 mrem per year (References 3 and 4).

The detailed sampling requirements of the REMP are given in the ODCM. The sampling requirements specified in the ODCM are summarized in Table 3.1 of this report. Details of the monitored locations are shown in Table 3.2, as well as Figures 3.1 and 3.2 of this report.

3.1 Monitoring Zones The REMP is designed to allow comparison of levels of radioactivity in samples from the area possibly influenced by the ISFSI to levels found in areas not influenced by the ISFSI. The first area is called "indicator stations". The second area is called "control stations". The distinction between the two is based on relative direction from the facility and distance. Analysis of survey data from the two zones aids in determining if there is a significant difference between the two areas. It can also help in differentiating between radioactivity or radiation due to releases and that due to other fluctuations in the environment, such as seasonal variations in the natural background.

MY 2012 Annual REO Report Page 7 of 39

3.2 Pathways Monitored Based on the design of the ISFSI, only the direct radiation exposure pathway is monitored by the REMP. This pathway is monitored by the collection of thermoluminescent dosimeters (TLDs) which are described in more detail below.

3.3 Description of Monitoring Program 3.3.1 Direct Radiation Direct gamma radiation exposure was continuously monitored during 2012 with the use of thermoluminescent dosimeters (TLDs). At each monitoring location, these TLDs are sealed in plastic bags and attached to an object such as a tree, fence or utility pole. The TLDs are posted and retrieved on a quarterly basis. All TLDs are provided and processed by a National Voluntary Laboratory Accreditation Program (NVLAP) certified vendor. The TLDs are placed at various locations around the Independent Spent Fuel Storage Installation (ISFSI). Table 3.2 lists the Station ID Codes, distances and direction of the TLDs from the ISFSI.

3.3.2 Special Monitoring Special samples can be taken that are not required in the ODCM. The sample locations do not appear in Table 3.1 or 3.2 of this report. For this monitoring period, no samples were collected as part of the Maine Yankee ISFSI Radiological Environmental Monitoring Program.

MY 2012 Annual REO Report Page 8 of 39

Table 3.1 Radiological Environmental Monitoring Program Exposure Collection Analysis Pathway Pathway Number of Routine and/or Collection Analysis Analysis Sample Sample Sampling Frequency Type Frequency Media Locations Mode Direct Total Locations:10 Continuous Quarterly Gamma Each TLD Radiation (9 around dose (TLD) perimeter of the site and 1 offsite control location)

MY 2012 Annual REO Report Page 9 of 39

Table 3.2 Radiological Environmental Monitoring Locations Station Code TL-O-36 TL-1-02 TL-1-04 TL-1-06 TL-1-08 TL-1-1 0 TL-1-1 2 TL-1-1 4 TL-1-15 TL-1-16 Station Description Wiscasset Fire Station (0)

Spent Fuel Storage (l)**

Spent Fuel Storage (I)**

Spent Fuel Storage (l)**

Spent Fuel Storage (I)**

Distance Zone From ISFSI (km) 2 5.2 Direction From ISFSI NW 1

1 1

1

< 0.28

< 0.28 N

NE E

SE S

SW W

WNW NW

2 = Control TLD; 1 = Indicator TLD

- I = Inner Ring TLD; 0 = Outer Ring TLD MY 2012 Annual REO Report Page 10 of 39

Figure 3.1 Radiological Environmental Monitoring Locations (within 0.28 km)

MY 2012 Annual REO Report Page 11 of 39

Figure 3.2 Direct Radiation Monitoring (outside I km)

Locations

'C' MY 2012 Annual REO Report Page 12 of 39

4.0 RADIOLOGICAL DATA

SUMMARY

TABLES This section summarizes the analytical results of the environmental samples, which were collected during the monitoring period.

" Data from direct radiation measurements made by TLDs are presented in Table 4.1.

" The direct measurements presented in Table 4.1 are converted to exposure rates in the following manner:

o The total TLD exposure time is determined from the anneal and read dates.

o The total deployment time is determined from the placement and retrieval dates.

o The non-deployment time is converted to exposure and subtracted from the TLD reading presented in Table 4.1.

o The resulting net exposure (deployment exposure) is divided by the deployment time in hours to calculate the exposure rate in pR per hour.

o The calculated exposure rates are presented in Table 4.2.

The summarized exposure rate results, shown in Table 4.3, are presented in a format similar to that prescribed in the NRC's Radiological Assessment Branch Technical Position on Environmental Monitoring (Reference 1).

" Table 4.4 presents the estimated direct dose from ISFSI operations as determined by TLD data shown in Table 4.1.

MY 2012 Annual REO Report Page 13 of 39

Table 4.1 TLD Measurements by Quarter (mR)

Station ID Direction 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr TL-I-02 N

26 23 25 39 TL-I-04 NE 23 21 27 38 TL-I-06 E

36 32 36 55 TL-I-08 SE 30 26 31 41 TL-I-10 S

29 26 26 42 TL-1-12 SW 28 26 27 39 TL-1-14 W

29 23 26 41 TL-1-15 WNW 31 25 30 45 TL-1-16 NW 31 25 28 39 TL-O-36 Control 25 20 24 35 TL-O-36a Control Backup 31 23 27 36 MY 2012 Annual REO Report Page 14 of 39

Table 4.2 Exposure Rates from TLD Measurements (pR per hour)

Station ID TL-I-02 TL-I-04 TL-I-06 TL-I-08 TL-I-10 TL-1-12 TL-1-14 TL-1-1 5 TL-1-1 6 TL-O-36 Direction 1st Qtr N

6.6 NE 5.2 E

11.1 SE 8.4 S

7.9 SW 7.5 W

7.9 WNW 8.8 NW 8.8 2nd Qtr 5.9 5.0 10.2 7.3 7.3 7.3 5.9 6.9 6.9 5.2 3rd Qtr 5.6 6.5 10.5 8.3 6.1 6.5 6.1 7.8 7.0 5.9 4th Qtr 9.3 8.8 16.7 10.2 10.7 9.3 10.2 12.1 9.3 7.7 Annual Ave 6.8 6.4 12.1 8.5 8.0 7.6 7.5 8.9 8.0 6.5 Control 7.5 MY 2012 Annual REO Report Page 15 of 39

Table 4.3 Environmental TLD Data Summary (pR per hour)

Inner Ring TLDs Control TLD's Station With Highest Mean Mean Mean Station #

Mean (Range)

(Range)

(No. Measurements)*

8.2 6.5 TL-1-06 12.1 (5.0-16.7)

(5.2-7.7)

(10.2-16.7)

(36)

(8) 1 (4)

Each "measurement" is based on quarterly readings MY 2012 Annual REO Report Page 16 of 39

Table 4.4 Direct Dose from ISFSI Operations (mrem)

QI Q2 Q3 Q4 Station ID TL-I-02 TL-I-04 TL-I-06 TL-I-08 TL-I-10 TL-1-12 TL-1-14 TL-1-15 TL-1-16 Net TLD Result 0.00 0.00 8.00 2.00 1.00 0.00 1.00 3.00 3.00 Calculated Dose 0.00 0.00 0.12 0.03 0.01 0.00 0.01 0.04 0.04 Net TLD Result 1.50 0.00 10.50 4.50 4.50 4.50 1.50 3.50 3.50 Calculated Dose 0.09 0.00 0.62 0.27 0.27 0.27 0.09 0.21 0.21 Net TLD Result 0.00 1.50 10.50 5.50 0.50 1.50 0.50 4.50 2.50 Calculated Dose 0.00 0.09 0.62 0.33 0.03 0.09 0.03 0.27 0.15 Net TLD Result 3.50 2.50 19.50 5.50 6.50 3.50 5.50 9.50 3.50 Calculated Dose 0.05 0.04 0.29 0.08 0.10 0.05 0.08 0.14 0.05 Annual Dose 0.14 0.13 1.65 0.70 0.41 0.41 0.22 0.66 0.45 Max Dose =>

1.65 Notes:

1. Doses based on a 32.5 hour5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months occupancy in both of the first and fourth quarters and a 130 hour0.0015 days 0.0361 hours 2.149471e-4 weeks 4.9465e-5 months occupancy in both of the second and third quarters.

2. Some of the net TLD results were negative and rounded up to zero MY 2012 Annual REO Report Page 17 of 39

Figure 4.1 Exposure Rate Trend Inictr oatos L--0 EM IL Exour a te I

Result Discrimination Level I

Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-I-02-001 03/31/2003 5.4E+000 pR/h t *

1. 18E+000 2.5E+000 TL-1-02-002 0613012003 8.OE+000 pR/h t *

1. 1OE+000 2.5E+000 TL-1-02-003 09/30/2003 6.9E+000 pR/h t

1.00E+000 2.5E+000 TL-1-02-004 12/31/2003 8.5E+000 pR/h t

9.OOE-001 2.5E+000 TL-1-02-005 03/3112004 6.4E+000 pR/h t

8.20E-001 2.5E+000 TL-1-02-006 06130/2004 8.3E+000 pR/h t

8.OOE-001 2.5E+000 TL-I-02-007 09/30/2004 6.2E+000 pR/h t

6.60E-001 2.5E+000 TL-I-02-008 12/31/2004 6.8E+000 pR/h t

7.40E-001 2.5E+000 TL-1-02-009 03/31/2005 8.6E+000 pR/h t

8.60E-001 2.5E+000 TL-1-02-010 06/30/2005 7.8E+000 pR/h t

7.80E-001 2.5E+000 TL-I-02-011 09/30/2005 1.1E+001 pR/h t

1.08E+000 2.5E+000 TL-1-02-012 12/31/2005 8.OE+O00 pR/h t

8,OOE-001 2.5E+000 TL-1-02-013 03/31/2006 8.4E+000 pR/h t

8,40E-001 2.5E+000 TL-1-02-014 06/30/2006 7.9E+000 pR/h t

7.80E-001 2.5E+000 TL-I-02-015 09/30/2006 8.8E+000 pR/h t

8.80E-001 2.5E+000 TL-1-02-016 12/31/2006 1.2E+001 MR/h t

1.16E+000 2.5E+000 TL-1-02-017 03/31/2007 7.4E+000 pR/h t

7.40E-001 2.5E+000 TL-1-02-018 06/30/2007 8.1E+000 pR/h t

8,OOE-001 2.5E+000 TL-1-02-019 09/30/2007 7.OE+000 pR/h t

7.OE-001 2.5E+000 TL-1-02-020 12/31/2007 7.6E+000 pR/h t

7.60E-001 2.5E+000 TL-1-02-021 03/31/2008 7.6E+000 MR/h t

8.O0E-001 2.5E+000 TL-I-02-022 06/30/2008 7.9E+000 MR/h t

8.OOE-001 2.5E+000 TL-I-02-023 09/30/2008 7.1E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-02-024 12/31/2008 7.6E+000 pR/h t

8.OOE-001 2.5E+000 TL-I-02-025 03/31/2009 9.4E+000 MR/h t

1.00E+000 2.5E+000 TL-1-02-026 06130/2009 6.2E+000 MR/h t

6.OOE-001 2.5E+000 TL-1-02-027 09/30/2009 4.8E+000 MR/h t

4.OOE-001 2.5E+000 TL-1-02-028 12/31/2009 4.5E+000 MR/h t

4.OOE-001 2.5E+000 TL-1-02-029 03/3112010 7.4E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-02-030 06/30/2010 6.8E+000 pR/h t

6.OOE-001 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results mared1 witao ar.hhDcriination Level MYUI b*nai u

epon Page 18 of 39

1BOIM 8#

I -

Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-02-031 09130/2010 5.7E+000 pR/h t

6.00E-001 2.5E+000 TL-1-02-032 12/31/2010 5.5E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-02-033 03/31/2011 4.7E+000 pR/h t

4.OOE-001 2.5E+000 TL-1-02-034 06/30/2011 6.OE+000 pR/h t

6OOE-001 2.5E+000 TL-1-02-035 09/30/2011 7.7E+000 pR/h t

8,00E-001 2.5E+000 TL-1-02-036 12/31/2011 6.OE+000 pR/h t

6.OOE-001 2.5E+000 TL-1-02-037 03/31/2012 6.6E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-02-038 06/30/2012 5.9E+000 pR/h t

6.OOE-001 2.5E+000 TL-I-02-039 09130/2012 5.6E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-02-040 12/31/2012 9.3E+000 pR/h t

1.OOE+000 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results marked 2

.ax ratrtb hepoiscriination Level MYZUZ nual

-ufepon Page 19 of 39

Figure 4.2 Exposure Rate Trend 1A~O"W 1 10+001 1*e+001 SAWOA 4AD"M fA I -

Result Discrimination Level I

Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-04-001 03/3112003 5.1E+000 pR/h t

1.26E+000 2.5E+000 TL-1-04-002 06/30/2003 8.4E+000 pR/h t

1.02E+000 2.5E+000 TL-1-04-003 09/30/2003 6.5E+000 pR/h t

7.20E-001 2.5E+000 TL-1-04-004 12/31/2003 8.3E+000 pR/h t

1.14E+000 2.5E+000 TL-1-04-005 03/31/2004 6.9E+000 pR/h t

7.80E-001 2.5E+000 TL-I-04-006 06/30/2004 7.8E+000 pR/h t

1.08E+000 2.5E+000 TL-1-04-007 09/30/2004 6.3E+000 pR/h t

6.20E-001 2.5E+000 TL-1-04-008 12/31/2004 6.3E+000 JR/h t

4.20E-001 2.5E+000 TL-I-04-009 03/31/2005 8.6E+000 pR/h t

8.60E-001 2.5E+000 TL-I-04-01 0 06130/2005 8.2E+000 MR/h t

8.20E-001 2.5E+000 TL-I-04-011 09/3012005 9.1E+000 MR/h t

9.OOE-001 2.5E+000 TL-1-04-012 12/31/2005 8.OE+O00 MR/h t

8.OOE-001 2.5E+000 TL-1-04-013 03/31/2006 6.9E+000 JR/h t

6.80E-001 2.5E+000 TL-1-04-014 06/30/2006 7.5E+000 JRO h t

7.40E-001 2.5E+000 TL-1-04-015 09/30/2006 8.4E+000 MR/h t

8.40E-001 2.5E+000 TL-1-04-016 12/31/2006 1.2E+OO1 MR/h t

1.16E+000 2.5E+000 TL-I-04-017 03/31/2007 7.OE+000 MR/h t 7.OOE-001 2.5E+000 TL-I-04-018 06/30/2007 6.7E+000 MR/h t

6.60E-001 2.5E+000 TL-1-04-019 09/30/2007 5.9E+000 MR/h t

6.OOE-001 2.5E+000 TL-1-04-021 03/31/2008 7.6E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-04-022 06/30/2008 4.9E+000 MR/h t

4.OOE-001 2.5E+000 TL-1-04-023 09/30/2008 5.3E+000 MR/h t

6.OOE-001 2.5E+000 TL-I-04-024 12/31/2008 8.9E+000 MR/h t

8.OOE-001 2.5E+000 TL-I-04-025 03/31/2009 7.9E+000 MR/h t

8.OOE-001 2.5E+000 TL-I-04-026 06/30/2009 5.8E+000 MR/h t

6.OOE-001 2.5E+000 TL-I-04-027 09/30/2009 6.2E+000 MR/h t

6.OOE-001 2.5E+000 TL-I-04-028 12/31/2009 4.9E+000 MR/h t

4.OOE-001 2.5E+000 TL-I-04-029 03/31/2010 8.3E+000 MR/h t

8.OOE-001 2.5E+000 TL-I-04-030 06/30/2010 7.8E+000 MR/h t

8.OOE-001 2.5E+000 TL-I-04-031 09/30/2010 1.3E+001 pR/h t

1.20E+000 2.5E+000 Results marked with *are greater than 2 Sigma Error.

Results m wit.e1 ae atirgtfthaiscrimination Level VV 2U uz/nual eporl:

Page 20 of 39

I4OLe+=

I De+401 wf 5BOeOooM I

Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-04-032 12/31/2010 5.5E+000 MR/h t

6.00E-001 2.5E+000 TL-1-04-033 03/31/2011 6.7E+000 pJR/h t

6.OOE-001 2.5E+000 TL-1-04-034 06/30/2011 6.5E+000 MJR/h t

6.00E-001 2.5E+000 TL-1-04-035 09/30/2011 8.1E+000 pR/h t

8.00E-001 2.5E+000 TL-I-04-036 12/31/2011 6.9E+000 pR/h t

6.00E-001 2.5E+000 TL-1-04-037 03/31/2012 5.2E+000 pR/h t

6.00E-001 2.5E+000 TL-I-04-038 06/3012012 5.OE+000 pR/h t

4.OOE-001 2.5E+000 TL-1-04-039 09/30/2012 6.5E+000 pR/h t

6.OOE-001 2.5E+000 TL-I-04-040 12/31/2012 8.8E+000 pR/h t

8.OOE-001 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results m9aVe*1

,a ater.6NhDiscrirination Level MYZlZAnual *-

teporn Page 21 of 39

Figure 4.3 Exposure Rate Trend at TL-1-06

,0e4+031

,.60e+l.001 1AC*O 1 ~e+Oi 2b~e+iM I

Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-06-001 03/31/2003 7.1E+000 pR/h t

1.36E+000 25E+000 TL-1-06-002 06/3012003 9.6E+000 pR/h t

1.OOE+000 2.5E+000 TL-1-06-003 09/30/2003 9.1E+000 pR/h t

1.46E+000 2.5E+000 TL-1-06-004 12/31/2003 1.2E+001 pR/h t

1.16E+000 2.5E+000 TL-1-06-005 03/31/2004 9.6E+000 pR/h t

9.40E-001 2.5E+000 TL-1-06-006 06/30/2004 1.1E+001 pR/h t

1.72E+000 2.5E+000 TL-I-06-007 09130/2004 9.7E+000 pR/h t

1.20E+000 2.5E+000 TL-1-06-008 12/3112004 9.6E+000 MR/h t

1.24E+000 2.5E+000 TL-I-06-009 03/31/2005 1.1E+001 MR/h t*

1.12E+000 2.5E+000 TL-I-06-010 06/3012005 1.4E+001 MR/h t

1.38E+000 2.5E+000 TL-I-06-011 09/30/2005 1.2E+001 MR/h t

1.18E+000 2.5E+000 TL-I-06-012 12/31/2005 1.OE+001 MR/h t

1.04E+000 2.5E+000 TL-I-06-013 03/31/2006 1.5E+001 MR/h t

1.48E+000 2.5E+000 TL-1-06-014 06/30/2006 1.1E+001 MR/h t

1.12E+000 2.5E+000 TL-1-06-015 09/30/2006 1.4E+001 MR/h t

1.40E+000 2.5E+000 TL-1-06-016 12/31/2006 1.2E+001 pR/h t

1.16E+000 2.5E+000 TL-I-06-017 03/31/2007 1.1E+001 pR/h t

1.1OE+000 2.5E+000 TL-I-06-018 06/30/2007 1.OE+001 pR/h t

1.00E+000 2.5E+000 TL-I-06-019 09/30/2007 1.2E+001 pR/h t

1.18E+000 2.5E+000 TL-1-06-020 12/31/2007 1.2E+001 pR/h t

1.22E+000 2.5E+000 TL-I-06-021 03/31/2008 1.6E+001 pR/h t

1.60E+000 2.5E+000 TL-1-06-022 06/30/2008 1.2E+001 pR/h t

1.20E+000 2.5E+000 TL-1-06-023 09/30/2008 9.OE+000 pR/h t

8.OOE-001 2.5E+000 TL-I-06-024 12/31/2008 9.8E+000 pR/h t

1.OOE+000 2.5E+000 TL-1-06-025 03/31/2009 1.6E+001 pR/h t

1.60E+000 2.5E+000 TL-1-06-026 06/30/2009 1.6E+001 pR/h t

1.60E+000 2.5E+000 TL-1-06-027 09/30/2009 8.1E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-06-028 12/31/2009 1.1E+001 pR/h t

1.OOE+000 2.5E+000 TL-I-06-029 03/31/2010 1.4E+001 pR/h t

1.40E+000 2.5E+000 TL-I-06-030 06/30/2010 1.2EO001 pR/h t

1.20E+000 2.5E+000 Results marked with are greater than 2 Sgma Error.

Results marked with.ae areaterbanthel)Discrimination Level MY dUl Annual

,(u nepon Page 22 of 39

lift4om IBDR+OM 1AG"=

1-20"=

IAQI+QM

&0011+=

MOO=

4A)02+=

2AD"M Oxotm A

Tj A-I I -

Result Discrimination Level I

Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-06-031 09/30/2010 8.6E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-06-032 12/31/2010 8.2E+000 pR/h t

8.00E-001 2.5E+000 TL-1-06-033 03/31/2011 1.2E+001 pR/h t

1.20E+000 2.5E+000 TL-I-06-034 06/30/2011 6.9E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-06-035 09/30/2011 I.8E+001 pR/h t

1.80E+000 2.5E+000 TL-1-06-036 12/31/2011 1.IE+001 pR/h t

1.20E+000 2.5E+000 TL-1-06-037 03/31/2012 1.1E+001 pR/h t

1.20E+000 2.5E+000 TL-1-06-038 06/30/2012 1.OE+001 pR/h t

1.OOE+000 2.5E+000 TL-1-06-039 09/30/2012 1.1E+001 pR/h t

1.OOE+000 2.5E+000 TL-1-06-040 12/31/2012 1.7E+001 pR/h t

1.60E+000 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results mrAed areater*

sCnD ination Level MYZ12 rgual Itu eporT Page 23 of 39

Figure 4.4 Exposure Rate Trend at TL-1-08 lhOHO$

Indicao r

oain L10 EM L

Epsr ae ISO*+

1 J140+

IO~e.4A M

I -

Result Discrimination Level I

Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-08-001 03/31/2003 5.2E+000 pR/h t

1.18E+000 2.5E+000 TL-1-08-002 06130/2003 8.4E+000 pR/h t

1 24E+000 2.5E+000 TL-1-08-003 09/30/2003 6.5E+000 pR/h t

9.20E-001 2.5E+000 TL-1-08-004 12/31/2003 9.4E+000 pR/h t

1.OOE+000 2.5E+000 TL-l-08-005 03/31/2004 8.2E+000 pR/h t

1.14E+000 2.5E+000 TL-1-08-006 06/30/2004 8.2E+000 pR/h t

1.14E+000 2.5E+000 TL-I-08-007 09/30/2004 6.7E+000 pR/h t

5.80E-001 2.5E+000 TL-I-08-008 12/31/2004 6.8E+000 JR/h t

5.40E-001 2.5E+000 TL-1-08-009 03/31/2005 1.OE+001 pR/h t

1.02E+000 2.5E+000 TL-I-08-010 06/30/2005

9. IE+000 pR/h t

9.20E-001 2.5E+000 TL-I-08-011 09/30/2005 1.1E+001 JR/h t

1.08E+000 2.5E+000 TL-I-08-012 12/31/2005 8.OE+600 pR/h t

8.OOE-001 2.5E+000 TL-1-08-013 03/31/2006 9.3E+000 pR/h t

9.40E-001 2.5E+000 TL-1-08-014 06/30/2006 7.OE+000 pR/h t

7.OOE-001 2.5E+000 TL-1-08-015 09/30/2006 1.1E÷001 pR/h t

1.08E+000 2.5E+000 TL-1-08-016 12/31/2006 1.6E+001 pR/h t

1.56E+000 2.5E+000 TL-1-08-017 03/31/2007 7.4E+000 pR/h t

7.40E-001 2.5E+000 TL-1-08-018 06/30/2007 8.1 E+000 pR/h t

8.OOE-001 2.5E+000 TL-I-08-019 09/30/2007 8.6E+000 pR/h t

8.60E-001 2.5E+000 TL-1-08-020 12/31/2007 8.5E+000 jR/h t

8.40E-001 2.5E+000 TL-1-08-021 03/31/2008 8.5E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-08-022 06/30/2008 7.9E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-08-023 09/30/2008 7.6E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-08-024 12/31/2008 9.4E+000 MR/h t

1.OOE+000 2.5E+000 TL-I-08-025 03/31/2009 9.9E+000 MR/h t

1.OOE+000 2.5E+000 TL-1-08-026 06/30/2009 6.7E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-08-027 09/30/2009 7.6E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-08-028 12/31/2009 6.3E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-08-029 03/31/2010 8.3E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-08-030 06/30/2010 7.3E+000 pR/h t

8.OOE-001 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results m9ar wM attr thPDiscrimination Level 2-01l Ann~ual u

epo*

Page 24 of 39

1 hoftm A

\\A 4AOHM 1

Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-08-031 09130/2010 7.8E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-08-032 12/31/2010 6.8E+000 pR/h t

600E-001 2.5E+000 TL-1-08-033 03/31/2011 9.2E+000 pR/h t

1.00E+000 2.5E+000 TL-1-08-034 06/30/2011 8.3E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-08-035 09130/2011 8.6E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-08-036 1213112011 7.8E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-08-037 03/31/2012 8.4E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-08-038 06/30/2012 7.3E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-08-039 09/30/2012 8.3E+000 pR/h t

8OOE-001 2.5E+000 TL-1-08-040 12/31/2012 1.OE+001 pR/h t

1.OOE+000 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results meA r

t;r ý

,D'*na r

h ination Level Page 25 of 39

Figure 4.5 Exposure Rate Trend t.20*+aw tDO.+oII Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-10-001 03/31/2003 5.2E+000,R/h t

1.18E+000 2.5E+000 TL-1-10-002 06/30/2003 8.2E+000 jR/h t

1.04E+000 2.5E+000 TL-1-10-003 09/30/2003 6.4E+000 PR/h t

1.1OE+000 2.5E+000 TL-1-10-004 12/31/2003 8.9E+000 jR/h t

8.60E-001 2.5E+000 TL-1-10-005 03/31/2004 6.9E+000 JR/h t

8.60E-001 2.5E+000 TL-1-10-006 06/30/2004 7.7E+000 jR/h t

1.06E+000 2.5E+000 TL-1-10-007 09/30/2004 6.5E+000 jJR/h t

8.40E-001 2.5E+000 TL-1-10-008 12/31/2004 6.5E+000 pR/h t

9.60E-001 2.5E+000 TL-1-10-009 03/31/2005 8.1E+000 jR/h t

8.20E-001 2.5E+000 TL-I-10-010 06/30/2005 8.2E+000 MR/h t

8.20E-001 2.5E+000 TL-I-10-01 1 09/30/2005 1.OE+001,R/h t

1.OOE+000 2.5E+000 TL-1-10-012 12/31/2005 8.OE+000 MRJh t

8.OOE-001 2.5E+000 TL-1-10-013 03/31/2006 7.4E+000 MR/h t

7.40E-001 2.5E+000 TL-1-10-014 06/30/2006 6.6E+000 JR/h t

6.60E-001 2.5E+000 TL-1-10-015 09/30/2006 8.4E+000 jR/h t

8.40E-001 2.5E+000 TL-1-10-016 12/31/2006 1.2E+001 JR/h t

1.16E+000 2.5E+000 TL-1-10-017 03/31/2007 7.OE+000 jR/h t

7.OOE-001 2.5E+000 TL-1-10-018 06/30/2007 9.0E+000 jR/h t

9.OOE-001 2.5E+000 TL-1-10-019 09130/2007 9.2E+000 MR/h t

9.20E-001 2.5E+000 TL-1-10-020 12/31/2007 7.6E+000 MR/h t

7.60E-001 2.5E+000 TL-1-10-021 03/31/2008 9.OE+000 MR/h t

8.OOE-001 2.5E+000 TL-I-10-022 06/30/2008 7.4E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-10-023 09/3012008 6.7E+000 MR/h t

6.00E-001 2.5E+000 TL-1-10-024 12/31/2008 8.0E+000 pR/h t

8.OOE-001 2.5E+000 TL-I-10-025 03/31/2009 8.4E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-10-026 06/30/2009 7.5E+000 MR/h t

8.OOE-001 2.5E+000 TL-I-10-028 12/31/2009 7.7E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-10-029 03/31/2010 9.6E+000 pR/h t

1.00E+000 2.5E+000 TL-I-10-030 06/30/2010 7.3E+000 MR/h t

8.00E-001 2.5E+000 TL-I-10-031 09/30/2010 8.6E+000 MR/h t

8.00E-001 2.5E+000 Results marked with are greater than 2 Sigma Error.

Results U

1 Level Page 26 of 39

U120"M 1 eDOE+

&Oae+o00 GJ4EOG 10 Result DiscriminationLevel Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-10-032 12/31/2010 6.4E+000 pR/h t

6.00E-001 2.5E+000 TL-I-10-033 03/31/2011 7.7E+000 pR/h t

8.00E-001 2.5E+000 TL-I-10-034 06/30/2011 7.8E+000 pR/h t

8.00E-001 2.5E+000 TL-I-10-035 09/30/2011 9.8E+000 pR/h t

1.OOE+000 2.5E+000 TL-I-10-036 12/31/2011 6.9E+000 pR/h t

6.OOE-001 2.5E+000 TL-I-10-037 03/31/2012 7.9E+000 pR/h t

8.00E-001 2.5E+000 TL-1-10-038 06/30/2012 7.3E+000 pR/h t

8.00E-001 2.5E+000 TL-1-10-039 09/30/2012 6.IE+000 pR/h t

6.OOE-001 2.5E+000 TL-1-10-040 12/31/2012

1. I E+001 pR/h t

1.OOE+000 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results marked *itJ.are greate rjan.+/-haDiscnrirnation Level MY 4U1 A~nnual f

l-U M l eporP Page 27 of 39

Figure 4.6 Exposure Rate Trend 1A0e+0O1 1...e.lom tce+ooi 200e+

I Result Discrimination Level I

Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-12-001 0313112003 6.7E+000 pR/h t

1.30E+000 2.5E+000 TL-1-12-002 06/30/2003 9.7E+000 pR/h t

1.38E+000 2.5E+000 TL-1-12-003 09/30/2003 8.3E+000 pR/h t

1.14E+000 2.5E+000 TL-1-12-004 12/31/2003 9.8E+000,R/h t

7.80E-001 2.5E+000 TL-1-12-005 03/31/2004 7.7E+000 pR/h t

1.50E+000 2.5E+000 TL-1-12-006 06130/2004 1.OE+001 pR/h t

1.14E+000 2.5E+000 TL-1-12-007 09/30/2004 7.6E+000 MR/h t

7.OOE-001 2.5E+000 TL-1-12-008 12/31/2004 7.IE+000,R/h t

7.40E-001 2.5E+000 TL-1-12-009 03/31/2005 7.6E+000 pR/h t

7.60E-001 2.5E+000 TL-1-12-010 06/30/2005 8.7E+000 pR/h t

8.60E-001 2.5E+000 TL-1-12-011 09/30/2005 9.1E+000 pR/h t

9.OOE-001 2.5E+000 TL-1-12-012 12/31/2005 8.8E+000 MR/h t

8.80E-001 2.5E+000 TL-1-12-013 03/31/2006 8.4E+000 MR/h t

8.40E-001 2.5E+000 TL-1-12-014 06/30/2006 6.6E+000 MR/h t

6.60E-001 2.5E+000 TL-1-12-015 09/30/2006 8.8E+000 MR/h t

8.80E-001 2.5E+000 TL-1-12-016 12/31/2006 1.3E+001 MR/h t

1.26E+000 2.5E+000 TL-1-12-017 03/31/2007 7.4E+000 MR/h t

7.40E-001 2.5E+000 TL-1-12-018 06/30/2007 7.2E+000 PR/h t

7.20E-001 2.5E+000 TL-1-12-019 09/30/2007 7.OE+O00 MR/h t

7.OOE-001 2.5E+000 TL-1-12-020 12/31/2007 7.6E+000 MR/h t

7.60E-001 2.5E+000 TL-1-12-021 03/31/2008 9.OE+000 MR/h t

8.O0E-001 2.5E+000 TL-1-12-022 06/30/2008 8.4E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-12-023 09/30/2008 8.5E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-12-025 03/31/2009 8.4E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-12-026 06/30/2009 6.7E+000 MR/h t

6.OOE-001 2.5E+000 TL-1-12-028 12/31/2009 6.3E+000 MR/h t

6.OOE-001 2.5E+000 TL-1-12-029 03/31/2010 8.7E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-12-030 06/30/2010 5.9E+000,R/h t

6.OOE-001 2.5E+000 TL-1-12-031 09/30/2010 8.2E1+000 R/h t

8.OOE-001 2.5E+000 TL-1-12-032 12/31/2010 7.3E+000 MR/h t

8.OOE-001 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results m Y w liaxr:ratirrthNDiscriination Level VV 201 nual MR*eo Page 28 of 39

1AOS+OO 120"=~

2JM"=oo Result

" Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-12-033 03/31/2011 8.2E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-12-034 06/3012011 7.8E+000 pR/h t

8.00E-001 2.5E+000 TL-1-12-035 09/30/2011 7.7E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-12-036 12/31/2011 6.9E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-12-037 03/31/2012 7.5E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-12-038 06/30/2012 7.3E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-12-039 09/30/2012 6.5E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-12-040 12/31/2012 9.3E+000 pR/h t

1.OOE+000 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results maYk 2U, ax ratirJtthDiscrimnation Level VYv

'ý

rual

u epon Page 29 of 39

Figure 4.7 ExosreRteTrnda0T-11

-1 Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-14-001 03/31/2003 6.7E+000 pR/h t

1.26E+000 2.5E+000 TL-1-14-002 06/30/2003 9.2E+000 pR/h t

1.04E+000 2.5E+000 TL-1-14-003 09/30/2003 8.3E+000 pR/h t

9.20E-001 2.5E+000 TL-I-14-004 12/31/2003 9.7E+000 pR/h t

1.00E+000 2.5E+000 TL-1-14-005 03/31/2004 7.4E+000 pR/h t

8.O0E-001 2.5E+000 TL-1-14-006 06/30/2004 9.8E+000 pR/h t

1.28E+000 2.5E+000 TL-I-14-007 09/30/2004 7.8E+000 pR/h t

8.80E-001 2.5E+000 TL-1-14-008 12/31/2004 7.8E+000 pR/h t

9.20E-001 2.5E+000 TL-1-14-009 03/31/2005 1.1E+001 pR/h t

1.06E+000 2.5E+000 TL-I-14-010 06/30/2005 9.6E+000 MR/h t

9.60E-001 2.5E+000 TL-1-14-011 09/30/2005 1.OE+001 pR/h t

1.04E+000 2.5E+000 TL-1-14-012 12/31/2005 I.OE+001 pR/h t

1.OOE+000 2.5E+000 TL-1-14-013 03/3112006 9.8E+000 pR/h t

9.80E-001 2.5E+000 TL-1-14-014 06/30/2006 9.6E+000 pR/h t

9.60E-001 2.5E+000 TL-1-14-015 09/30/2006 1.OE+001 pR/h t

1.02E+000 2.5E+000 TL-1-14-016 12/31/2006 1.4E+001 pR/h t

1.36E+000 2.5E+000 TL-1-14-017 03/31/2007 8.2E+000 pR/h t

8.20E-001 2.5E+000 TL-1-14-018 06/30/2007 8.1E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-14-019 09/30/2007 8.1E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-14-020 12/31/2007 8.1E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-14-021 03/31/2008 1.1E+001 pR/h t

1.OOE+000 2.5E+000 TL-1-14-022 06/30/2008 7.4E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-14-023 09/30/2008 6.7E+000 MR/h t

6.OOE-001 2.5E+000 TL-1-14-024 12/31/2008 8.OE+000 MR/h t

8.OOE-001 2.5E+000 TL-1-14-025 03/3112009 9.4E+000 pR/h t

1.OOE+000 2.5E+000 TL-1-14-026 06/30/2009 7.5E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-14-027 09/30/2009 5.3E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-14-028 12/31/2009 5.4E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-14-029 03/31/2010 8.3E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-14-030 06/30/2010 5.9E+000 pR/h t

6.OOE-001 2.5E+000 Results marked with are greater than 2 Sigma Error.

Results m Y m tae reaternt~hNDiscdmination Level V'V1U uz/nual u

epo*

Page 30 of 39

1,20e+00 V4, A-y 4im"M 2BW+M OADR+OM Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-14-031 09/30/2010 6.5E+000 pR/h t

6.00E-001 2.5E+000 TL-1-14-032 12/31/2010 8.7E+000 pR/h t

8.00E-001 2.5E+000 TL-1-14-033 03/31/2011 8.2E+000 pR/h t

8.00E-001 2.5E+000 TL-I-14-034 06/30/2011 7.4E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-14-035 09/30/2011 1.1E+001 pR/h t

1.20E+000 2.5E+000 TL-1-14-036 12/31/2011 4.6E+000 pR/h t

4.OOE-001 2.5E+000 TL-1-14-037 03/31/2012 7.9E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-14-038 06/30/2012 5.9E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-14-039 09/30/2012 6.1E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-14-040 12/31/2012 1.OE+001 pR/h t

1.00E+000 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results maM;J M

ýagrp tratjr blhpDiscr.ination Level Page 31 of 39

Figure 4.8 1I20e 8,00"M -

&ODB+OM 4111)"M ZOOR+OW Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-15-001 03/31/2003 7.1E+000 pR/h t

1.62E+000 2.5E+000 TL-1-15-002 06/30/2003 1.OE+001 pR/ht

1.34E+000 2.5E+000 TL-1-15-003 09130/2003 8.5E+000 pR/h t

8.O0E-001 2.5E+000 TL-1-15-004 12/31/2003 1.0E+001 pR/h t

1.08E+000 2.5E+000 TL-1-15-005 03/31/2004 8.3E+000,R/h t

8.OOE-001 2.5E+000 TL-1-15-006 06/3012004 1.OE+001,R/h t

1.06E+000 2.5E+000 TL-1-15-007 09130/2004 8.OE+000 pR/h t

8.40E-001 2.5E+000 TL-1-15-008 12/31/2004 8.6E+000 JR/h t

6.OOE-001 2.5E+000 TL-1-15-009 03/31/2005 9.IE+000 jR/h t

9.20E-001 2.5E+000 TL-1-15-010 06/30/2005 1.1E+001 JR/h t

1.06E+000 2.5E+000 TL-1-15-011 09/30/2005 1.2E+001 pR/h t*

1.18E+000 2.5E+000 TL-1-15-012 12/31/2005 9.6E+000 pR/h t

9.60E-001 2.5E+000 TL-1-15-013 03/31/2006 1.OE+001 pR/h t

1.04E+000 2.5E+000 TL-1-15-014 06/30/2006 9.6E+000 pR/h t

9.60E-001 2.5E+000 TL-1-15-015 09/30/2006 1.1E+001 pR/h t

1.06E+000 2.5E+000 TL-1-15-016 12/31/2006 1.2E+001 pR/h t

1.16E+000 2.5E+000 TL-1-15-017 03/31/2007 9.OE+000 pR/h t

9.OOE-001 2.5E+000 TL-1-15-018 06/30/2007 8.6E+000 jR/h t

8.60E-001 2.5E+000 TL-1-15-019 09/30/2007 7.OE+000 pR/h t

7.OOE-001 2.5E+000 TL-1-15-020 12/31/2007 8.1E+000 JR/h t

8.OOE-001 2.5E+000 TL-1-15-021 03/31/2008 1.2E+001 pR/h t

1.20E+000 2.5E+000 TL-1-15-022 06/30/2008 7.9E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-15-023 09/30/2008

7. IE+000 pR/h t

8.OOE-001 2.5E+000 TL-1-15-024 12/31/2008 7.2E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-15-025 03/31/2009 9.9E+000 jR/h t

1.OOE+000 2.5E+000 TL-1-15-026 06/30/2009 9.2E+000 MR/h t

1.OOE+000 2.5E+000 TL-1-15-027 09/30/2009 7.6E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-15-028 12/31/2009 7.3E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-15-029 03/31/2010 1.IE+001 pR/h t

1.20E+000 2.6E+000 TL-1-15-030 06/30/2010 7.3E+000 MR/h t

8.OOE-001 2.5E+000 Results marked with are greater than 2 Sigma Error.

Results atr hD ination Level 2U1 Z

i*

Anualnatiepo n

Page 32 of 39

1 zae~1 Result Discrimination Level 0.cm0ooo Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-15-031 09/30/2010 7.8E+000 pR/h t

8.00E-001 2.5E+000 TL-1-15-032 12/31/2010 9.1E+000 pR/h t

1.OOE+000 2.5E+000 TL-1-15-033 03/31/2011 5.7E+000 pR/h t

6.00E-001 2.5E+000 TL-1-15-034 06130/2011 8.3E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-15-035 09/30/2011 9.8E+000 pR/h t

1.OOE+000 2.5E+000 TL-1-15-036 12/31/2011 7.4E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-15-037 03/31/2012 8.8E+000 pR/h t

8.OOE-001 25E+000 TL-1-15-038 06/30/2012 6.9E+000 pR/h t

6.OOE-001 2.5E+000 TL-I-15-039 09/30/2012 7.8E+000 pR/h t

8.00E-001 2.5E+000 TL-1-15-040 12/31/2012 1.2E+001 pR/h t

1.20E+000 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results mar eraterJt~

hDiscrimination Level MY ZIZ nnul Ru Ieport Page 33 of 39

Figure 4.9 Exposure Rate Trend at TL-1-16 1Toe Indcaor oain L1 6

REPT Epsr ae I

I Result Discrimination Level I

Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-16-001 03/31/2003 6.7E+000 pR/h t

1.22E+000 2.5E+000 TL-1-16-002 06/30/2003 1.OE+001 pR/h t

1.48E+000 2.5E+000 TL-1-16-003 09/30/2003 9.OE+000 MjR/h t

1.16E+000 2.5E+000 TL-1-16-004 12/31/2003 1.1E+001 pR/h t

1.16E+000 2.5E+000 TL-1-16-005 03/31/2004 8.6E+000 pR/h t

9.80E-001 2.5E+000 TL-1-16-006 06/3012004 1.OE+001 pR/h t *

1. 14E+000 2.5E+000 TL-1-16-007 09/30/2004 8.4E+000 pR/h t

1.16E+000 2.5E+000 TL-1-16-008 12/31/2004 8.8E+000 pR/h t

8.80E-001 2.5E+000 TL-1-16-009 03/31/2005 8.IE+000 pR/h t

8.20E-001 2.5E+000 TL-1-16-010 06/30/2005 1.1E+001 pR/h t

1.14E+000 2.5E+000 TL-1-16-011 09/30/2005 1.OE+001 pR/h t

1.04E+000 2.5E+000 TL-1-16-012 12/31/2005 1.OE+001 pR/h t

1.04E+000 2.5E+000 TL-1-16-013 03/31/2006 9.8E+000 pR/h t

9.80E-001 2.5E+000 TL-1-16-014 06/30/2006 9.6E+000 MR/h t

9.60E-001 2.5E+000 TL-1-16-015 09/30/2006 1.IE+001 MR/h t

1.06E+000 2.5E+000 TL-1-16-016 12/31/2006 1.4E+001 MR/h t

1.36E+000 2.5E+000 TL-1-16-017 03/31/2007 8.6E+000 MR/h t

8.60E-001 2.5E+000 TL-1-16-018 06/30/2007 9.5E+000 MR/h t

9.60E-001 2.5E+000 TL-1-16-019 09/30/2007 7.5E+000 MR/h t

7.60E-001 2.5E+000 TL-1-16-020 12/31/2007 8.1E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-16-021 03/31/2008 9.9E+000 MR/h t

1.OOE+000 2.5E+000 TL-1-16-022 06/30/2008 8.9E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-16-023 09/30/2008 7.tE+000 MR/h t

8.OOE-001 2.5E+000 TL-1-16-024 12/31/2008 8.5E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-16-025 03/31/2009 8.9E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-16-026 06/30/2009 7.5E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-16-027 09/30/2009 6.2E+000 MR/h t

6.OOE-001 2.5E+000 TL-1-16-028 12/31/2009 8.7E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-16-029 03131/2010 1.tE+001 pR/h t

1.OOE+000 2.5E+000 TL-1-16-030 06/30/2010 6.8E+000 pR/h t

6.OOE-001 2.5E+000 Results marked with are greater than 2 Sigma Error.

Results mael with. +aeratir hDiscri ination Level nVzu1

nual u

epoiT Page 34 of 39

14OHO 1,2000M AA OJsUD0 I "'"

Result Discrimination Level I

Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-16-031 09/30/2010 8.6E+000 pR/h t

8.O0E-001 2.5E+000 TL-1-16-032 12/31/2010 8.2E+000 pJR/h t

8.00E-001 2.5E+000 TL-1-16-033 03/31/2011 7.2E+000 pJR/h t

8.OOE-001 2.5E+000 TL-1-16-034 06/30/2011 7.8E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-16-035 09/3012011 1.1E+001 PR/h t

1.OOE+000 2.5E+000 TL-1-16-036 12/31/2011 7.8E+000 pR/h t

8.OOE-001 2.5E+000 TL-1-16-037 03/31/2012 8.8E+000 MR/h t

8.OOE-001 2.5E+000 TL-1-16-038 06/30/2012 6.9E+000 pR/h t

6.OOE-001 2.5E+000 TL-1-16-039 09/30/2012 7.OE+000 pJR/h t

6.OOE-001 2.5E+000 TL-1-16-040 12/31/2012 9.3E+000 pR/h t 1.OOE+000 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results mared

-iae reater.Lh*ADiscrinination Level MY:,'UIZAnual *t eport Page 35 of 39

Figure 4.10 Exposure Rate Trend at Contra 2iOtiO C

'A I

Result Discrimination Level I

Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-0-36-001 03/31/2003 7.9E+000 pR/h t

1.68E+000 2.5E+000 TL-O-36-002 06/30/2003 7.5E+000 JR/h t

1.04E+000 2.5E+000 TL-0-36-003 09/30/2003 7.8E+000 pR/h t

1.34E+000 2.5E+000 TL-0-36-004 12/31/2003 6.8E+000 JR/h t

6.80E-001 2.5E+000 TL-0-36-005 03/31/2004 8.6E+000 pR/h t

6.80E-001 2.5E+000 TL-0-36-006 06/30/2004 6.3E+000 pR/h t

6.80E-001 2.5E+000 TL-0-36-007 09/30/2004 6.1E+000 pR/h t

5.60E-001 2.5E+000 TL-0-36-008 12/31/2004 6.1E+000 MR/h t

4.80E-001 2.5E+000 TL-0-36-009 03/31/2005 8.1E+000 pR/h t

8.OOE-001 2.5E+000 TL-0-36-010 06/30/2005 8.7E+000 jR/h t

8.60E-001 2.5E+000 TL-0-36-011 09/30/2005 1.OE+001 pR/h t

1.OOE+000 2.5E+000 TL-0-36-012 12/31/2005 8.OE+000 MR/h t*

8.OOE-001 2.5E+000 TL-0-36-013 03/31/2006 6.6E+000 pR/h t

6.60E-001 2.5E+000 TL-0-36-014 06/30/2006 7.7E+000 pR/h t

7.60E-001 2.5E+000 TL-0-36-015 09/30/2006 7.2E+000 pR/h t

7.20E-001 2.5E+000 TL-0-36-016 12/31/2006 1.1E+001 MR/h t

1.12E+000 2.5E+000 TL-0-36-017 03/31/2007 6.8E+000 MR/h t

6.80E-001 2.5E+000 TL-O-36-018 06/30/2007 7.2E+000 MjR/h t

7.20E-001 2.5E+000 TL-0-36-019 09/30/2007 7.3E+000 pR/h t

7.20E-001 2.5E+000 TL-0-36-020 12/31/2007 6.8E+000 pR/h t

6.80E-001 2.5E+000 TL-0-36-021 03/31/2008 7.6E+000 pR/h t

8.OOE-001 2.5E+000 TL-O-36-022 06/30/2008 5.9E+000 pR/h t

6.OOE-001 2.5E+000 TL-0-36-023 09/30/2008 5.1E+000 pR/h t

6.OOE-001 2.5E+000 TL-0-36-024 12/31/2008 6.3E+000 MR/h t

6.OOE-001 2.5E+000 TL-0-36-025 03/31/2009 6.6E+000 pR/h t

6.OOE-001 2.5E+000 TL-O-36-026 06/30/2009 6.5E+000 pR/h t

6.OOE-001 2.5E+000 TL-0-36-027 09/30/2009 5.8E+000 pR/h t

6.00E-001 2.5E+000 TL-0-36-028 12/31/2009 5.9E+000 pR/h t

6.OOE-001 2.5E+000 TL-0-36-029 03/31/2010 7.4E+000 pR/h t

8.OOE-001 2.5E+000 TL-0-36-030 06/30/2010 5.OE+000 pR/h t

6.OOE-001 2.5E+000 Results marked with "are greater than 2 Sigma Error.

Results ma~j ~j*;iUMa eination Level VVIT2U1Z nnal K epon Page 36 of 39

lion+=

Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-O-36-031 09/30/2010 5.2E+000 pR/h t

6.00E-001 2.5E+000 TL-O-36-032 12/31/2010 6.4E+000 pR/h t

6.OOE-001 2.5E+000 TL-O-36-033 03/3112011 6.7E+000 pR/h t

6.OOE-001 2.5E+000 TL-O-36-034 06/30/2011 6.2E+000 pR/h t

6.00E-001 2.5E+000 TL-O-36-035 09/30/2011 7.7E+000 pR/h t

8.OOE-001 2.5E+000 TL-O-36-036 12/31/2011 7.1E+000 pR/h t

8.OOE-001 2.5E+000 TL-O-36-037 03/31/2012 7.5E+000 pR/h t

8.OOE-001 2.5E+000 TL-O-36-038 06/30/2012 5.2E+000 pR/h t

6.OOE-001 2.5E+000 TL-O-36-039 09/30/2012 5.9E+000 pR/h t

6.OOE-001 2.5E+000 TL-O-36-040 12/31/2012 7.7E+000 pR/h t

8.OOE-001 2.5E+000 Results marked with

are greater than 2 Sigma Error.

Results marlked VwMi*ae reaterLhanjheDiscrmination Level MY UiZ trnnual ilU teporP Page 37 of 39

5.0 ANALYSIS OF ENVIRONMENTAL RESULTS 5.1 Sampling Program Deviations A sampling program deviation is defined as samples that are unobtainable due to hazardous conditions or to malfunction of sampling equipment. Such deviations do not compromise the program's effectiveness and in fact are considered insignificant with respect to what is normally anticipated for this Radiological Environmental Monitoring Program.

No deviations of the sampling requirements occurred during this monitoring period.

5.2 Direct Radiation Pathway 5.2.1 Exposure Rates Direct radiation is continuously measured at 9 indicator locations surrounding the Maine Yankee ISFSI, along with 1 control location (Wiscasset Fire Station) using thermoluminescent dosimeters (TLDs). These dosimeters are collected every calendar quarter for readout at the NVLAP certified dosimetry services vendor.

Review of the data in Tables 4.2 and 4.3 shows that most indicator locations were slightly elevated in comparison to the control location exposure rates.

Figures 4.1 through 4.10 provide exposure rate trends of the monitoring locations since 2003. Review of Figures 4.1 through 4.10 shows no significant difference in exposure rates over time at either the indicator or control locations. The data listed under each of the trend graphs show values for the result errors and discrimination levels. Note that these values are estimated and are shown only for information.

5.2.2 Direct Doses from ISFSI Operations A dose estimate is the potential dose to any real member of the public that could use portions of the site or be present adjacent to the site for recreational activities throughout the year. Direct exposure above background can be estimated by subtracting the average TLD value of the control station from the indicator location measurements. As in previous years, the 2012 dose estimate assumes a total of 325 hours0.00376 days 0.0903 hours 5.373677e-4 weeks 1.236625e-4 months occupancy for the dose calculation; of which 32.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months are used in both the first and fourth quarters and 130 hours0.0015 days 0.0361 hours 2.149471e-4 weeks 4.9465e-5 months are used in both the MY 2012 Annual REO Report Page 38 of 39

second and third quarters. The most likely location for exposure to a member of the public from the ISFSI is along the Back River, Bailey Cove or Montsweag Bay for boating and fishing and the mud flats in the Cove or Bay exposed at low tides which is worked by clam diggers and worm diggers; however, the time estimates are conservatively applied to all monitoring locations.

Table 4.4 presents the results of the dose calculations. The highest calculated dose is at Station ID number TL-I-06. The maximum calculated annual dose at that location is 1.65 mrem. This value is only 7 percent of the 25 mrem per year limit. It is noted that most of the mud flat region in Bailey Cove that is used by the public is situated further away from this Station. As a result, actual exposures from direct radiation would be much less than the maximum calculated value.

6.0 REFERENCES

1. USNRC Radiological Assessment Branch Technical Position, "An Acceptable Radiological Environmental Monitoring Program," Revision 1, November 1979.

2.

Maine Yankee Off-site Dose Calculation Manual, Revision 34.

3. 40 CFR Part 190, "Environmental Radiation Protection Standards for Nuclear Power Operation".

4.

10 CFR Part 72.104, "Criteria for Radioactive Materials in Effluents and Direct Radiation from an ISFSI or MRS".

MY 2012 Annual REO Report Page 39 of 39

OMY-13-035 ENCLOSURE 2 MAINE YANKEE INDEPENDENT SPENT FUEL STORAGE INSTALLATION ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY - DECEMBER 2012 April 2013

MAINE YANKEE INDEPENDENT SPENT FUEL STORAGE INSTALLATION License No. DPR-36 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT January - December 2012 R

RSCS Fditon Soafe y & Contro Sorv COO March 2013 Prepared by:

Radiological Safety & Control Services 91 Portsmouth Avenue Stratham, NH 03885-2468

EXECUTIVE

SUMMARY

Tables 1 and 2 summarize the quantity of radioactive gaseous and liquid effluents, respectively, for each quarter of 2012. There were no gaseous or liquid releases in 2012. Table 3 summarizes waste shipped off-site for disposal for each half year of 2012. There was no waste shipped in 2012.

Appendices A through C indicate the status of reportable items per the requirements of the Off-site Dose Calculation Manual (ODCM). There were no reportable items in 2012.

MY 2012 Annual RER Report Page 2 of 15

Table I MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2012 Gaseous Effluents-Summation of All Releases N/A-N/A*

N/A*

NWA*

N/A*

NIA*

I Particulates Released CI N/A N/A-N/A" pCi/s N/A*

N/A*

I Average release rate N/A*

i i

[Percent of re ulato limit I

N/A*

I N/A*

[

N/A* I N/A*

N/A*= Not Applicable There are no gaseous effluents associated with the Maine Yankee Independent Spent Fuel Storage Installation (ISFSI)

MY 2012 Annual RER Report Page 3 of 15

Table 1A MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2012 Gaseous Effluents - Ground Level Releases - Batch Mode Nuclides Released Unit 1st 2nd 3rd 4th Total Quarter Quarter Quarter Quarter Kr-pton-85 Ci N/A*

N/A*

Krypton-85m Ci N/A*

N/A*

Krypton-87 Ci N/A*

N/A*

Krypton-88 Ci N/A*

N/A*

Xenon-133 Ci N/A*

N/A*

Xenon-1 35 Ci N/A*

N/A*

NIA*

N/A*

Xenon-1 35m Ci N/A*

N/A*

Xenon-1 38 Ci N/A*

N/A*

Unidentified Ci N/A*

N/A*

U tified Ci N/A*

N/A*

Iodine-1 31 Ci N/A*

N/A*

N/A Iodine-133 Ci N/A*

N/A*

Iodine-1 35 Ci N/A*

N/A*

Total for period Ci N/A*

N/A*

Strontium-89 Ci N/A*

N/A*

Strontium-90 Ci N/A*

N/A*

Cesium-134 Ci N/A*

N/A*

Cesium-1 37 Ci N/A*

N/A*

Cobalt-60 Ci N/A*

N/A*

Barium-Lanthanum-140 Ci N/A*

N/A*

Others-Plutonium-238 Ci N/A*

N/A*

Curium-243,244 Ci N/A*

N/A*

Uranium-234 Ci N/A*

N/A*

Uranium-238 Ci N/A*

N/A*

Thorium-232 Ci N/A*

N/A*

Radium-226 Ci N/A*

N/A*

N/A*= Not Applicable There are no gaseous effluents associated with the Maine Yankee Independent Spent Fuel Storage Installation (ISFSI)

MY 2012 Annual RER Report Page 4 of 15

Table I B MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2012 Gaseous Effluents - Ground Level Releases - Continuous Mode Nuclides Released Unit 1st 2nd 3rd 4th Total Quarter Quarter Quarter Quarter Krypton-85 Ci N/A*

N/A*

Krypton-85m Ci N/A*

N/A*

Krypton-87 Ci N/A*

N/A*

Krypton-88 Ci N/A*

N/A*

Xenon-133 Ci N/A*

N/A*

Xenon-1 35 Ci N/A*

N/A*

Xenon-1 35m Ci N/A*

N/A*

Xenon-1 38 Ci N/A*

N/A*

Unidentified Ci N/A*

N/A*

Total for period Ci N/A*

N/A*

-odine-131 Ci N/A*

N/A*

Iodine-133 Ci N/A*

N/A*

Iodine-135 Ci N/A*

N/A*

Iodie-i Ci N/A*

N/A*

Strontium-89 Ci N/A*

N/A*

NIA*

N/A*

Strontium-90 Ci N/A*

N/A*

Cesium-134 Ci N/A*

N/A*

Cesium-137 Ci N/A*

N/A*

Cobalt-60 Ci N/A*

N/A*

Barium-Lanthanum-140 Ci N/A*

N/A*

Others-Plutonium-238 Ci N/A*

N/A*

Curium-243,244 Ci N/A*

N/A*

Uranium-234 Ci N/A*

N/A*

Uranium-238 Ci N/A*

N/A*

Thorium-232 Ci N/A*

N/A*

Radium-226 Ci N/A*

N/A*

N/A*= Not Applicable There are no gaseous effluents associated with the Maine Yankee Independent Spent Fuel Storage Installation (ISFSI)

MY 2012 Annual RER Report Page 5 of 15

Table 1C MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2012 Gaseous Effluents - Elevated Releases - Batch Mode Nuclides Released Unit 1st 2nd 3rd 4th Total Quarter Quarter Quarter Quarter Kr-ton-85 Ci N/A*

N/A*

Krypton-85m Ci N/A*

N/A*

Krypton-87 Ci N/A*

N/A*

Krypton-88 Ci N/A*

N/A*

Xenon-133 Ci N/A*

N/A*

Xenon-1 35 Ci N/A*

N/A*

Xenon-1 35m Ci N/A*

N/A*

Xenon-1 38 Ci N/A*

N/A*

Unidentified Ci N/A*

N/A*

Total for eriod Ci N/A*

N/A*

lodine-131 Ci N/A*

N/A*

Iodine-1 33 Ci N/A*

N/A*

Iodine-135 Ci N/A*

N/A*

Total for eriod Ci N/A*

N/A*

Strontium-89 Ci N/A*

N/A*

N/A Strontium-90 Ci N/A*

N/A*

Cesium-134 Ci N/A*

N/A*

Cesium-1 37 Ci N/A*

N/A*

Cobalt-60 Ci N/A*

N/A*

Barium-Lanthanum-140 Ci N/A*

N/A*

Others-Plutonium-238 Ci N/A*

N/A*

Curium-243,244 Ci N/A*

N/A*

Uranium-234 Ci N/A*

N/A*

Uranium-238 Ci N/A*

N/A*

Thorium-232 Ci N/A*

N/A*

Radium-226 Ci N/A*

N/A*

N/A*= Not Applicable There are no gaseous effluents associated with the Maine Yankee Independent Spent Fuel Storage Installation (ISFSI)

MY 2012 Annual RER Report Page 6 of 15

Table 1D MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2012 Gaseous Effluents - Elevated Releases - Continuous Mode Nuclides Released Unit 1st 2nd 3rd 4th Total Quarter Quarter Quarter Quarter Krypton-85 Ci N/A*

N/A*

Krypton-85m Ci N/A*

N/A*

Krypton-87 Ci N/A*

N/A*

Krypton-88 Ci N/A*

N/A*

Xenon-1 33 Ci N/A*

N/A*

Xenon-1 35 Ci N/A*

N/A*

Xenon-1 35m Ci N/A*

N/A*

Xenon-1 38 Ci N/A*

N/A*

Unidentified Ci N/A*

N/A*

Total for period Ci N/A*

N/A*

Iodine-131 Ci N/A*

N/A*

Iodine-1 33 Ci N/A*

N/A*

Iodine-1 35 Ci N/A*

N/A*

Total for eriod Ci N/A*

N/A*

Strontium-89 Ci N/A*

N/A*

Strontium-90 Ci N/A*

N/A*

Cesium-134 Ci N/A*

N/A*

Cesium-137 Ci N/A*

N/A*

Cobalt-60 Ci N/A*

N/A*

Barium-Lanthanum-140 Ci N/A*

N/A*

Others-Plutonium-238 Ci N/A*

N/A*

Curium-243,244 Ci N/A*

N/A*

Uranium-234 Ci N/A*

N/A*

Uranium-238 Ci N/A*

N/A*

Thorium-232 Ci N/A*

N/A*

Radium-226 Ci N/A*

N/A*

N/A*= Not Applicable There are no gaseous effluents associated with the Maine Yankee Independent Spent Fuel Storage Installation (ISFSI)

MY 2012 Annual RER Report Page 7 of 15

Table 2 MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2012 Liquid Effluents - Summation of All Releases 4

4 4-

-4 4

Average diluted concentration durina Deriod 4

4 4-4 4

Percent of applicable limit B. Tritium Total Release Average diluted concentration during period Percent of applicable limit C. Dissolved and Entrained Gases Total Release I

Ci I

N/A*

I N/A*

N/A*

Average diluted concentration pCi/mI N/A*

N/A*

during period Percent of applicable limit N/A*

N/A*

D. Gross Alpha Radioactivity Total release Ci N/A*

N/A*

Average diluted concentration pCi/mI N/A*

N/A*

during period E. Volume of Waste Released Liters N/A*

N/A*

(prior to dilution)

F. Volume of Dilution Water Liters N/A*

N/A*

Used During Period I

N/A*= Not Applicable There are no liquid effluents associated with the Maine Yankee Independent Spent Fuel Storage Installation (ISFSI)

MY 2012 Annual RER Report Page 8 of 15

Table 2A MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2012 Liquid Effluents - Batch Mode Cesium-1 34 Ci N/A*

N/A*

Cesium-1 37 Ci N/A*

N/A*

Iodine-1 31 Ci N/A*

N/A*

NIA*

Cobalt-58 Ci N/A*

N/A*

Cobalt-60 Ci N/A*

N/A*

NIA*

N/A*

Iron-59 Ci N/A*

N/A*

NIA*

N/A*

Zinc-65 Ci N/A*

N/A*

Manganese-54 Ci N/A*

N/A*

Chromium-51 Ci N/A*

N/A*

Zirconium-Niobium-95 Ci N/A*

N/A*

Molybdenum-99 Ci N/A*

N/A*

Technetium-99m Ci N/A*

N/A*

Barium-Lathanium-140 Ci N/A*

N/A*

Cerium-141 Ci N/A*

N/A*

Others-Iron-55 Ci N/A*

N/A*

Antimony-125 Ci N/A*

N/A*

Unidentified Ci N/A*

N/A*

Total for period (above)

Ci N/A*

N/A*

Dissolved and Entrained Ci N/A*

N/A*

Gasses Tritium Ci N/A*

N/A*

Gross Alpha Ci N/A*

N/A*

f N/A*= Not Applicable There are no liquid effluents associated with the Maine Yankee Independent Spent Fuel Storage Installation (ISFSI)

MY 2012 Annual RER Report Page 9 of 15

Table 2B MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2012 Liquid Effluents - Continuous Mode Cesium-134 Ci N/A*

N/A*

Cesium-1 37 Ci N/A*

NIA*

N/A*

lodine-131 Ci N/A*

N/A*

Cobalt-58 Ci N/A*

N/A*

Cobalt-60 Ci N/A*

N/A*

Iron-59 Ci N/A*

N/A*

Zinc-65 Ci N/A*

NIA*

N/A*

Manganese-54 Ci N/A*

N/A*

Chromium-51 Ci N/A*

N/A*

Zirconium-Niobium-95 Ci N/A*

N/A*

Molybdenum-99 Ci N/A*

N/A*

Technetium-99m Ci N/A*

N/A*

NIA*

N/A*

Barium-Lathanium-140 Ci N/A*

N/A*

Cerium-141 Ci N/A*

N/A*

Others-Iron-55 Ci N/A*

NIA*

N/A*

Antimony-1 25 Ci N/A*

N/A*

Unidentified Ci N/A*

N/A*

Total for period (above)

Ci N/A*

N/A*

Dissolved and Entrained Ci N/A*

N/A*

Gasses Tritium Ci N/A*

N/A*

Gross Alpha Ci N/A*

N/A*

N/A*= Not Applicable There are no liquid effluents associated with the Maine Yankee Independent Spent Fuel Storage Installation (ISFSI)

MY 2012 Annual RER Report Page 10 of 15

Table 3 MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report First Half 2012 Low Level Waste Shipments 0

iries 0

B 0

0 0

C 0

0 0

All 0

0 0

Major radionuclides for above data:

Waste Class Solidifying Agent f

m*

Curies A

0 0

0 B

0 0

0 C

0 0

0 All 0

0 0

Major radionuclides for above data:

Waste Class Solidifying Agent Wt msý Curies A

0 0

0 B

0 0

0 C

0 0

0 All 10 0

0 Major radionuclides for above data:

Waste Class Solidifying Agent ft3 m 3 Curies A

0 0

0 B

0 0

0 C

0 0

0 All 0

0 0

Major radionuclides for above data:

MY 2012 Annual RER Report Page 11 of 15

Table 3A MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report Second Half 2012 Low Level Waste Shipments A

0 0

0 B

0 0

0 C

0 0

0 All 0

0 0

Major radionuclides for above data:

Waste Class Solidifying Agent ft3 m.

Curies A

0 0

0 B

0 0

0 C

0 0

0 All 0

0 0

Ma~jor radionuclides for above data:

Waste Class Solidifying Agent f

mS Curies A

0 0

0 B

0 0

0 C

0 0

0 All 0

0 0

Major radionuclides for above data:

Waste Class Solidifying Agent ft3 m 3 Curies A

0 0

0 B

0 0

0 C

0 0

0 All 0

00 Major radionuclides for above data:

MY 2012 Annual RER Report Page 12 of 15

Appendix A Radiation Dose Assessment There were no gaseous or liquid effluent releases in 2012. Therefore, an assessment of radiation doses to the most likely exposed member(s) of the public to show compliance with 40CFR190 or 10CFR72.104 from effluents was not required.

MY 2012 Annual RER Report Page 13 of 15

Appendix B Unplanned Releases There were no unplanned releases of radioactive materials from the site in 2012.

MY 2012 Annual RER Report Page 14 of 15

Appendix C Off-site Dose Calculation Manual Changes There were no changes to the Off-site Dose Calculation Manual in 2012.

MY 2012 Annual RER Report Page 15 of 15

ML13144A190

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ML13144A190

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SUMMARY

3.3 DESCRIPTION

SUMMARY

6.0 REFERENCES

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SUMMARY

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SUMMARY

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