ML11104A011

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Independent Spent Fuel Storage Installation, Submittal of Annual Radiological Environmental Operating Report and Annual Radioactive Effluent Release Report for 2010
ML11104A011
Person / Time
Site: Maine Yankee, 07100465
Issue date: 04/06/2011
From: Connell J
Maine Yankee Atomic Power Co
To:
Document Control Desk, Office of Nuclear Material Safety and Safeguards
References
OMY-11-064
Download: ML11104A011 (52)
v • d • e


Text

MaineYankee 321 OLD FERRY RD.

  • WISCASSET, ME 04578-4922 April 6, 2011 OMY-1 1-064 UNITED STATES NUCLEAR REGULATORY COMMISSION Attention: Document Control Desk Washington, D. C. 20555-0001

Reference:

(a) License No. DPR-36 (Docket Nos. 50-309,72-030 and 71-0465)

(b) Maine Yankee Quality Assurance Program (QAP)

(c) Maine Yankee Offsite Dose Calculation Manual (ODCM)

Subject:

Maine Yankee Independent Spent Fuel Storage Installation Annual Radiological Environmental Operating Report and Annual Radioactive Effluent Release Report for 2010 Gentlemen:

In accordance with the requirements of references (b) and (c), enclosed are the 2010 Annual Radiological Environmental Operating Report and the Annual Radioactive Effluent Release Report for the Maine Yankee Independent Spent Fuel Storage Installation. Information formerly submitted in the Estimated Dose report is now included in the Environmental Operating report. No changes were made to the ODCM during 2010.

If you have any questions, please contact me at (207)-883-1303, or at JConnell@3yankees.com.

Sincerely, James Connell ISFSI Manager Attachments C: Mr. John Goshen, Project Manager, NRC Headquarters Mr. William Dean, Administrator, NRC Region I Ms. Judy Joustra, NRC Region I Mr. Mark Roberts, NRC Region I Mr. Jay Hyland State of Maine Mr. Pat Dostie, Maine State Nuclear Safety Inspector Mr. Robert Capstick, Director of Regulatory Affairs, Maine Yankee C w/o Mr. Gerald C. Poulin, Chairman and President, Maine Yankee Mr. Wayne Norton, Vice President and CNO, Maine Yankee ,)

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MAINE YANKEE INDEPENDENT SPENT FUEL STORAGE INSTALLATION License No. DPR-36 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT January - December 2010 N

  • RSCS Radiation Safety & Control Services March 2011 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 2010 in compliance with the Maine Yankee Off-Site Dose Calculation Manual (ODCM).

No changes were made to the ODCM during 2010. 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 2010 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.

Page 2 of 36

TABLE OF CONTENTS Section Title Paqe

1.0 INTRODUCTION

............................................................................ 6 2.0 GENERAL ISFSI AND SITE INFORMATION ............................... 7 3.0 PROGRAM DESIGN .................................. 7 3.1 MONITORING ZONES . .......................... ....................................... 7 3.2 PATHW AYS M ONITORED.......................................................................... . 8 313 DESCRIPTION OF MONITORING PROGRAM ....................................................... 8 4.0 RADIOLOGICAL DATA

SUMMARY

TABLES ............................. 13 5.0 ANALYSIS OF ENVIRONMENTAL RESULTS ............... 35 5.1 SAMPLING PROGRAM DEVIATIONS ............................................................... 35 5.2 DIRECT RADIATION PATHW AY ..................................................................... 35

6.0 REFERENCES

.............................................................................. 36 Page 3 of 36

LIST OF TABLES Table Title Paqe 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 Page 4 of 36

LIST OF FIGURES Figure Title Page 3.1 Radiological Environmental Monitoring Locations (within 0.28 km ) ............................................................................ 11 3.2 Direct Radiation Monitoring Locations (outside 1 km ) .............................................................................. 12 4.1 Exposure Rate Trend at TL-I-02 .................................................. 18 4.2 Exposure Rate Trend at TL-1-04 ......................... 20 4.3 Exposure Rate Trend at TL-I-06.. ................................................ 21 4.4 Exposure Rate Trend at TL-I-08 .................................................. 23 4.5 Exposure Rate Trend at TL-1-1O0 ...................................................... 25 4.6 Exposure Rate Trend at TL-1-12 ................................................... 26 4.7 Exposure Rate Trend at TL-1-14 ......................................... ............. 27 4.8 Exposure Rate Trend at TL-1-15.................................................. 29 4.9 Exposure Rate Trend at TL-1-16 .................................................. 31 4.10 Exposure Rate Trend at Control LocationTL-O-36 .................. 33 Page 5 of 36

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 2010. 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: Provides a brief description of the Maine Yankee site and its environs.

Section 3: 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.

Section 4: 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 Page 6 of 36

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.

Page 7 of 36

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 2010 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 are 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, four Outfall-018 water samples were collected as part of the Maine Yankee ISFSI Radiological Environmental Monitoring Program. The results of these samples are available for review at the site.

Page 8 of 36

Table 3.1 Radiological Environmental Monitoring Program Exposure Collection Analysis Pathway and/or Number of Routine 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)

Page 9 of 36

Table 3.2 Radiological Environmental Monitoring Locations Distance Station Zone From ISFSI Direction Station Description Code (km) From ISFSI TL-O-36 Wiscasset Fire Station (0) 2 5.2 NW TL-I-02 Spent Fuel Storage (I)** 1 < 0.28 N TL-1-04 Spent Fuel Storage (I)** 1 < 0.28 NE TL-1-06 Spent Fuel Storage (l)** 1 < 0.28 E TL-1-08 Spent Fuel Storage (l)** 1 < 0.28 SE TL-I-1 0 Spent Fuel Storage (I)** 1 < 0.28 S TL-1-12 Spent Fuel Storage (I)** 1 < 0.28 SW TL-1-14 Spent Fuel Storage (l)** I < 0.28 W TL-1-1 5 Spent Fuel Storage (I)** 1 < 0.28 WNW TL-1-16 Spent Fuel Storage (I)** 1 < 0.28 NW

  • 2 = Control TLD; 1 = Indicator TLD
    • I = Inner Ring TLD; 0 = Outer Ring TLD Page 10 of 36

Figure 3.1 Radiological Environmental Monitoring Locations (within 0.28 km)

Co N

f f r *

.4 iI La Sc I

Page 11 of 36

Figure 3.2 Direct Radiation Monitoring Locations (outside 1 km)

-I K d Page 12 of 36

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 provided in Table 4.1. The direct measurements converted to exposure rates are provided 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 provides the estimated direct dose from ISFSI operations as determined by TLDs.

Page 13 of 36

Table 4.1 TLD Measurements by Quarter (mR)

Station ID Direction 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr TL-I-02 N 29 31 23 29 TL-I-04 NE 31 33 40 29 TL-1-06 E 44 42 30 35 TL-I-08 SE 31 32 28 32 TL-1-10 S 34 32 30 31 TL-1-12 SW 32 29 29 33 TL-1-14 W 31 29 25 36 TL-1-15 WNW 38 32 28 37 TL-1-16 NW 37 31 30 35 TL-O-36 Control 27 NR 22 32 TL-O-36a Control Backup 31 27 NR 30 Note: NR = no result. The TLDs were missing at changeout.

Page 14 of 36

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

Station ID Direction 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Ave TL-I-02 N 7.4 6.8 5.7 5.5 6.3 TL-1-04 NE 8.3 7.8 12.9 5.5 8.6 TL-1-06 E 14.1 11.9 8.6 8.2 10.7 TL-1-08 SE 8.3 7.3 7.8 6.8 7.5 TL-I-10 S 9.6 7.3 8.6 6.4 8.0 TL-1-12 SW 8.7 5.9 8.2 7.3 7.5 TL-1-14 W 8.3 5.9 6.5 8.7 .7.3 TL-1-1 5 WNW 11.4 7.3 7.8 9.1 8.9 TL-1-16 NW 10.9 6.8 8.6 8.2 8.7 TL-O-36 Control 7.4 5.0 5.2 6.4 6.0 Page 15 of 36

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) (Range)

(No. Measurements)* (No. Measurements)* (No. Measurements)*

8.2 6.0 TL-I-06 10.7 (5.5-14.1) (5.0-7.4) (8.2-14.1)

(36) (6) (4)

  • Each "measurement" is based on quarterly readings Page 16 of 36

Table 4.4 Direct Dose from ISFSI Operations (mrem)

Q1 Q2 Q3 Q4 Net TLD Calculated Net TLD Calculated Net TLD Calculated Net TLD Calculated Annual Station ID Result Dose Result Dose Result Dose Result Dose Dose TL-1-02 0.0 0.0 4.0 0.2 1.0 0.1 0.0 0.0 0.3 TL-1-04 2.0 0.0 6.0 0.4 18.0 1.1 0.0 0.0 1.5 TL-1-06 15.0 0.2 15.0 0.9 8.0 0.5 4.0 0.1 1.6 TL-I-08 2.0 0.0 5.0 0.3 6.0 0.4 1.0 0.0 0.7 TL-I-10 5.0 0.1 5.0 0.3 8.0 0.5 0.0 0.0 0.8 TL-1-12 3.0 0.0 2.0 0.1 7.0 0.4 2.0 0.0 0.6 TL-1-14 2.0 0.0 2.0 0.1 3.0 0.2 5.0 0.1 0.4 TL-1-15 9.0 0.1 5.0 0.3 6.0 0.4 6.0 0.1 0.9 TL-1-16 8.0 0.1 4.0 0.2 8.0 0.5 4.0 0.1 0.9 Max Dose => 1.6 Notes:

1. Doses based on a 32.5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> occupancy in both of the first and fourth quarters and a 130 hour0.0015 days <br />0.0361 hours <br />2.149471e-4 weeks <br />4.9465e-5 months <br /> occupancy in both of the second and third quarters.
2. Some of the net TLD results were negative and rounded up to zero Page 17 of 36

Figure 4.1 Exposure Rate Trend at TL-I-02 Indicator Locations - TL-1-02 REMP TLD (Exposure Rate]

120114M1 too"=.

I 4001 A0 Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-02-001 03/31/2003 5.4E+000 pR/h t

  • 1.18E+000 2.5E+000 TL-1-02-002 06/30/2003 8.OE+000 pR/h t* 1.10E+000 2.5E+000 TL-I-02-003 09/30/2003 6.9E+000 pR/h t
  • 1.OOE+000 2.5E+000 TL-I-02-004 12/31/2003 8.5E+000 pR/h t
  • 9.00E-001 2.5E+000 TL-I-02-005 03/31/2004 6.4E+000 pR/h t
  • 8.20E-001 25E+000 TL-I-02-006 06/30/2004 8.3E+000 pR/h t
  • 8.00E-001 2.5E+000 TL-1-02-007 09/30/2004 6.2E+000 pR/h t
  • 6.60E-001 2.5E+000 TL-1-02-008 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-1-02-011 09/30/2005 1.1E÷001 pR/h t
  • 1.08E+000 2.5E+000 TL-1-02-012 12/31/2005 8.OE+000 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-1-02-015 09/30/2006 8.BE+000 pR/h t
  • 8.80E-001 2.5E+000 TL-I-02-016 12/31/2006 1.2E+001 pR/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.IE+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-02-019 09/30/2007 7.OE+000 pR/h t
  • 7OOE-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 pR/h t
  • 8.OOE-001 2,5E+000 TL-1-02-022 06/30/2008 7.9E+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-02-023 09/30/2008 7.1E+O00 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-1-02-025 03/31/2009 9.4E+000 pR/h t
  • 1 00E+000 2.5E+000 TL-1-02-026 06/30/2009 6.2E+000 pR/h t
  • 6,00E-001 2.5E+000 TL-1-02-027 09/30/2009 4.8E+000 pR/h t
  • 4-OOE-001 2.5E+000 TL-I-02-028 12/31/2009 4.5E+000 pR/h t
  • 4.OOE-001 2.5E+000 TL-1-02-029 03/31/2010 7.4E+000 pR/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 TL-1-02-031 09/30/2010 5.7E+000 pRJh t
  • 6.OOE-001 2.5E+000 Results marked with
  • are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 18 of 36

Indicator Locations - TL-I-02 REMP TLD [Exposure Rate] Continued...

I 00e"001 6,00"=

zo4t000 0 ~e00"M Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-I-02-032 12/31/2010 5.5E+000 pR/h f 600E-001 2.5E+000 Results marked with

  • are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 19 of 36

Figure 4.2 Exposure Rate Trend at TL-I-04 Indicator Locations - TL-I-04 REMP TLD [Exposure Rate]

!20eOOl 1.Q*,oelo /

1400S001 4 11 6Z 0OO sO4 O2e4000 Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-I-04-001 03/31/2003 5.1E+000 pR/h t

  • 1.26E+000 2.5E+000 TL-I-04-002 06/30/2003 8.4E+000 pjR/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-I-04-004 12/31/2003 8.3E+000 IJR/h t
  • 1.14E+000 2.5E+000 TL-I-04-005 03/31/2004 6.9E+000 pR/h t
  • 7.80E-001 2.5E+000 TL-1-04-006 06/30/2004 7.8E+000 pR/h t
  • 1.08E+000 25E+000 TL-1-04-007 09/30/2004 6.3E+000 pJR/h t
  • 6.20E-001 2.5E+000 TL-I-04-008 12/31/2004 6.3E+000 pR/h t
  • 4.20E-001 2.5E+000 TL-I-04-009 03/31/2005 8.6E+000 pR/h t
  • 8.60E-001 25E+000 TL-I-04-010 06/30/2005 8.2E+000 pR/h t
  • 8.20E-001 2.5E+000 TL-1-04-011 09/30/2005 9.1E+000 pR/h t
  • 9O0E-001 2.5E+000 TL-I-04-012 12/31/2005 8.OE+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-I-04-013 03/31/2006 6.9E+000 pR/h t
  • 6.80E-001 2.5E+000 TL-I-04-014 06/30/2006 7.5E+000 PR/h t
  • 7.40E-001 2.5E+000 TL-I-04-015 09/30/2006 8.4E+000 pR/h t
  • 8.40E-001 2.5E+000 TL-I-04-016 12/31/2006 1.2E+001 JR/h t
  • 1.16E+000 2.5E+000 TL-1-04-017 03/31/2007 7.OE+000 pR/h t
  • 7.OOE-001 2.5E+000 TL-1-04-018 06/30/2007 6.7E+000 PR/h t
  • 6.60E-001 2.5E+000 TL-1-04-019 09/30/2007 5.9E+000 pR/h t
  • 6.OOE-001 2.5E+000 TL-1-04-021 03/31/2008 7.6E+000 pR/h t
  • 8OOE-001 25E+000 TL-1-04-022 06/30/2008 4.9E+000 pR/h t
  • 4OOE-001 25E+000 TL-1-04-023 09/30/2008 5.3E+000 pR/h t
  • 6.OOE-001 2.5E+000 TL-1-04-024 12/31/2008 8.9E+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-I-04-025 03/31/2009 7.9E+000 pR/h t
  • 8OOE-001 2+5E+000 TL-I-04-026 06/30/2009 5.8E+000 pR/h t
  • 6.OOE-001 2.5E+000 TL-I-04-027 09/30/2009 6.2E+000 pR/h t
  • 6.OOE-001 2+5E+000 TL-I-04-028 12/31/2009 4.9E+000 pR/h f
  • 4.OOE-001 2.5E+000 TL-I-04-029 03/3112010 8.3E+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-04-030 06/30/2010 7.8E+000 pR/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 TL-I-04-032 12/31/2010 5.5E+000 pR/h t
  • 6.OOE-001 2.5E+000 Results marked with are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 20 of 36

Figure 4.3 Exposure Rate Trend at TL-I-06 Indicator Locations - TL-I-06 : REMP TLD [Exposure Rate]

1 *t1 1400+.001 I M M1VQO1 ItIe*

100*001 600*4000 2005+00 000SaMpl Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-06-001 03/31/2003 7.IE+000 pR/h t

  • 1,36E+000 2.5E+000 TL-1-06-002 06/30/2003 9.6E+000 pR/h t
  • 1.00E+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.IE+001 pR/h t
  • 1.72E+000 2.5E+000 TL-I-06-007 09/3012004 9.7E+000 pR/h t
  • 1.20E+000 2.5E+000 TL-1-06-008 12/31/2004 9.6E+000 pR/h t
  • 1 24E+000 2.5E+000 TL-1-06-009 03/31/2005 1.IE+001 pR/h t
  • 1.12E+000 2,5E+000 TL-1-06-010 06/30/2005 1.4E+001 pR/h t
  • 1.38E+000 2.5E+000 TL-1-06-011 09/30/2005 1.2E+001 pR/h t
  • 1.18E+000 25E+000 TL-1-06-012 12/31/2005 1.OE+001 pR/h t
  • 1.04E+000 2.5E+000 TL-1-06-013 03/31/2006 1.5E+001 pR/h t
  • 1.48E+000 2.5E+000 TL-1-06-014 06/30/2006 1.IE+001 pR/h t
  • 1+12E+000 2.5E+000 TL-1-06-015 09/30/2006 1.4E+001 pR/h t
  • 1,40E+000 25E+000 TL-1-06-016 12/31/2006 1.2E+001 pR/h t
  • 1.16E+000 2.5E+000 TL-1-06-017 03/31/2007 1.1E+001 pR/h t
  • 1.10E+000 2.5E+000 TL-1-06-018 06/30/2007 1.OE+001 pR/h t
  • 1.OOE+000 2,5E+000 TL-1-06-019 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-1-06-021 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-1-06-024 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 25E+000 TL-1-06-027 09/30/2009 8.1 E+000 pR/h t
  • 8OOE-001 2.5E+000 TL-1-06-028 12/31/2009 1.1E+001 MR/h t
  • 1.00E+000 2.5E+000 TL-1-06-029 03/31/2010 1.4E+001 pR/h t
  • 1.40E+000 2.5E+000 TL-1-06-030 06/30/2010 1.2E+001 pR/h t
  • 1.20E+000 2.5E+000 TL-1-06-031 09/30/2010 8.6E+000 pR/h t
  • 8OOE-001 2.5E+000 Results marked with are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 21 of 36

Continued...

I Indicator Locations - TL-1-06 : REMP TLD [Exposure Rate] I 1a&oe4O' IeOeO0 I 40i+001 120e4401 11Os.4MI AA~~~ /' <~ib N I/ ~

&eOW400 toll"MI tOD""cN 2.00e+000 LOOe+MOw 4z 11ý I ,- Result - Discrimination Level I Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-06-032 12/31/2010 8.2E+000 pIR/h t

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

Results marked with t are greater than the Discrimination Level Page 22 of 36

Figure 4.4 Exposure Rate Trend at TL-I-08 Indicator Locations - TL-1-08 : REMP TLD [Exposure Rate]

I Aoe4ool 1200+001 I+00.OOO too" too"=~x 0O0e+0OO Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-I-08-001 03/31/2003 5.2E+000 pR/h t

  • 1,18E+000 2.5E+000 TL-1-08-002 06/30/2003 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
  • 1OOE+000 2.5E+000 TL-1-08-005 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 pJRJh t
  • 1+14E+000 2.5E+000 TL-1-08-007 09/30/2004 6.7E+000 pR/h t
  • 5.80E-001 25E+000 TL-1-08-008 12/31/2004 6.8E+000 pR/h t
  • 5.40E-001 2.5E+000 TL-1-08-009 03/31/2005 i.OE+001 pR/h t
  • 1.02E+000 2.5E+000 TL-1-08-010 06/30/2005 9.IE+000 pR/h t
  • 9.20E-001 2.5E+000 TL-1-08-011 09/30/2005 1.1E+001 pJR/h t
  • 108E+000 25E+000 TL-1-08-012 12/31/2005 8.OE+O00 pR/h t
  • 8OOE-001 2.5E+000 TL-1-08-013 03/31/2006 9.3E+000 pR/h t"* 940E-001 2.5E+000 TL-1-08-014 06/30/2006 7.OE+000 pR/h t
  • 7OOE-001 2.5E+000 TL-1-08-015 09/30/2006 1.1 E+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 8.1E+000 MR/h t
  • 8.OOE-001 2.5E+000 TL-1-08-019 09/30/2007 8.6E+000 R/h t
  • 8.60E-001 2.5E+000 TL-1-08-020 12/31/2007 8.5E+000 pR/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 25E+000 TL-1-08-023 09/30/2008 7.6E+000 pR/h t
  • 8,OOE-001 2.5E+000 TL-1-08-024 12/31/2008 9.4E+000 pR/h t
  • 1.OOE+000 25E+000 TL-1-08-025 03/31/2009 9.9E+000 pR/h t
  • 1.OOE+000 2.5E+000 TL-1-08-026 06/30/2009 6.7E+000 pR/h t
  • 6.OOE-001 25E+000 TL-1-08-027 09/30/2009 7.6E+000 pR/h t
  • 8OOE-001 2.5E+000 TL-1-08-028 12/31/2009 6.3E+000 MR/h t
  • 6OOE-001 2,5E+000 TL-1-08-029 03/31/2010 8.3E+000 MRJh t
  • 8.OOE-001 2.5E+000 TL-1-08-030 06/30/2010 7.3E+000 MR/h t
  • 8OOE-001 2.5E+000 TL-1-08-031 09/30/2010 7.8E+000 MR/h t
  • 8.OOE-001 25E+000 Results marked with are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page v

23 of 36

Indicator Locations - TL-I-08: REMP TLD [Exposure Rate] Continued...

1 4oe+oo1 /'

100"M00 200"M30 Me+000

- Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-08-032 12/31/2010 6.8E+000 pR/h t 6.00E-001 2.5E+000 Results marked with

  • are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 24 of 36

Figure 4.5 Exposure Rate Trend at TL-I-10 Indicator Locations - TL-1-1 0 REMP TLD [Exposure Rate]

120"O01 I 001em00v 4OON"OO Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-10-001 03/31/2003 5.2E+000 pR/h t

  • 1.18E+000 2.5E+000 TL-1-10-002 06/30/2003 8.2E+000 pR/h t
  • 1.04E+000 2.5E+000 TL-1-10-003 09/30/2003 6.4E+000 pR/h t
  • 1.10E+000 2.5E+000 TL-1-10-004 12/31/2003 8.9E+000 pR/h t
  • 8.60E-001 2.5E+000 TL-1-10-005 03/31/2004 6.9E+000 pR/h t
  • 8.60E-001 2.5E+000 TL-1-10-006 06/30/2004 7.7E+000 pR/h t
  • 1.06E+000 25E+000 TL-1-10-007 09/30/2004 6.5E+000 pR/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 03131/2005 8.1E+000 pR/h t
  • 8.20E-001 2.5E+000 TL-1-10-010 06/30/2005 8.2E+000 pR/h t
  • 8.20E-001 2.5E+000 TL-1-10-011 09/30/2005 I.OE+001 pR/h t
  • 1,0E+000 2.5E+000 TL-1-10-012 12/31/2005 8.OE+000 pR/h t
  • 8OOE-001 25E+000 TL-1-10-013 03/31/2006 7.4E+000 pR/h t
  • 7.40E-001 2.5E+000 TL-1-10-014 06/30/2006 6.6E+000 JR/h t
  • 660E-001 25E+000 TL-1-10-015 09/30/2006 8.4E÷000 pR/h t
  • 8.40E-001 2.5E+000 TL-1-10-016 12/31/2006 1.2E+001 pR/h t
  • 1.16E+000 25E+000 TL-1-10-017 03/31/2007 7.OE+000 pR/h t
  • 7.OOE-001 2.5E+000 TL-1-10-018 06/30/2007 9.OE+000 pR/h t
  • 9.OOE-001 2.5E+000 TL-1-10-019 09/30/2007 9.2E+000 pjR/h t
  • 9.20E-001 2.5E+000 TL-1-10-020 12/31/2007 7.6E+000 pR/h t
  • 7.60E-001 2.5E+000 TL-1-10-021 03/31/2008 9.OE+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-10-022 06/30/2008 7.4E+000 VR/h t
  • 8.OOE-001 2.5E+000 TL-1-10-023 09/30/2008 6.7E+000 JR/h t
  • 6.OOE-001 2.5E+000 TL-1-10-024 12/31/2008 8.OE+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-10-025 03/31/2009 8.4E÷000 jR/h t
  • 8,00E-001 2.5E+000 TL-1-10-026 06/30/2009 7.5E+000 jR/h t
  • 8.OOE-001 2.5E+000 TL-1-10-028 12/31/2009 7.7E+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-10-029 03/31/2010 9.6E+000 pR/h t
  • 1.OOE+000 2.5E+000 TL-1-10-030 06/30/2010 7.3E÷000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-10-031 09/30/2010 8.6E+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-10-032 12/31/2010 6.4E+000 jR/h t
  • 6,OOE-001 25E+000 Results marked with are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 25 of 36

Figure 4.6 Exposure Rate Trend at TL-1-12 Indicator Locations - TL-1-1 2 REMP TLD [Exposure Rate]

12*0e+001 8 OO+"M00 200*+000 0*~+00" Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-12-001 03/31/2003 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 pR/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 06/30/2004 1.OE+001 pR/h t
  • 1.14E+000 2.5E+000 TL-1-12-007 09130/2004 7.6E+000 pR/h t
  • 7.OOE-001 2.5E+000 TL-1-12-008 12/31/2004 7.1E+000 pR/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-I-12-011 09/30/2005 9.1E+000 PR/h t
  • 9.00E-001 2,5E+000 TL-1-12-012 12/31/2005 8.8E+000 pR/h t
  • 8.80E-001 2.5E+000 TL-1-12-013 03/31/2006 8.4E+000 pR/h t
  • 840E-001 2.5E+000 TL-1-12-014 06/30/2006 6.6E+000 pR/h t
  • 6.60E-001 2.5E+000 TL-1-12-015 09/30/2006 8.8E+000 pR/h t
  • 8.80E-001 2,5E+000 TL-1-12-016 12/31/2006 1.3E+001 PR/h t
  • 1,26E+000 2.5E+000 TL-1-12-017 03/31/2007 7.4E+000 jR/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+000 pR/h t
  • 7.OOE-001 2.5E+000 TL-1-12-020 12/31/2007 7.6E+000 pR/h t
  • 7.60E-001 2.5E+000 TL-1-12-021 03/31/2008 9.0E+000 pR/h t
  • 8.00E-001 2.5E+000 TL-1-12-022 06/30/2008 8.4E+000 pR/h t
  • 8.00E-001 2.5E+000 TL-1-12-023 09/30/2008 8.5E+000 pR/h t
  • 8.00E-001 2.5E+000 TL-1-12-025 03/31/2009 8.4E+000 pR/h t
  • 8.00E-001 2.5E+000 TL-1-12-026 06/30/2009 6.7E+000 pR/h t
  • 6.00E-001 2,5E+000 TL-1-12-028 12/31/2009 6.3E+000 pR/h t
  • 6.00E-001 2.5E+000 TL-1-12-029 03/31/2010 8.7E+000 pR/h t
  • 8.00E-001 2.5E+000 TL-1-12-030 06/30/2010 5.9E+000 pR/h t
  • 6.00E-001 2.5E+000 TL-1-12-031 09/30/2010 8.2E+000 pR/h t
  • 8.00E-001 2.5E+000 TL-1-12-032 12/31/2010 7.3E+000 pR/h t
  • 8.00E-001 2.52+000 Results marked with
  • are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Paae 26 of 36

Figure 4.7 Exposure Rate Trend at TL-1-14 Indicator Locations - TL-I-14 :REMP TLD [Exposure Rate]

I4oe+~oo 4 40.ODI 400e4W00 000t"M/

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-1-14-004 12/31/2003 9.7E+000 pR/h t
  • 1.OOE+000 2.5E+000 TL-1-14-005 03/3112004 7.4E+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-14-006 06/30/2004 9.8E+000 pR/h t
  • 1.28E+000 25E+000 TL-1-14-007 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-1-14-010 06/30/2005 9.6E+000 pR/h t
  • 9.60E-001 2.5E+000 TL-1-14-011 09/30/2005 1.0OE+001 MR/h t
  • 1.04E+000 25E+000 TL-1-14-012 12/31/2005 1.OE+001 pR/h t
  • 1.OOE+000 2.5E+000 TL-1-14-013 03/31/2006 9.8E+000 pR/h t
  • 980E-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 I.0E+001 MR/h t
  • 1.02E+000 2.5E+000 TL-1-14-016 12/31/2006 1.4E+00i MR/h t
  • 1.36E+000 25E+000 TL-1-14-017 03/31/2007 8.2E+000 MR/h t
  • 8.20E-001 25E+000 TL-1-14-018 06/30/2007 8.1 E+000 MR/h t
  • 8.OOE-001 2.5E+000 TL-1-14-019 09/30/2007 8.IE+000 MR/h t
  • 8OOE-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.IE+001 MR/h t
  • 1.OOE+000 2.5E+000 TL-1-14-022 06/30/2008 7.4E+000 MR/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+OO0 pR/h t
  • 8OOE-001 2.5E+000 TL-1-14-025 03/31/2009 9.4E+000 MR/h t
  • 1.OOE+000 2.5E+000 TL-1-14-026 06/30/2009 7.5E+000 MR/h t
  • 8,OE-001 2.5E+000 TL-1-14-027 09/30/2009 5.3E+000 MR/h t 6*OOE-001 2.5E+000 TL-1-14-028 12/31/2009 5.4E+OO0 MR/h t
  • 6.OOE-001 2,5E+000 TL-1-14-029 03/31/2010 8.3E+000 JR/h t
  • 8OOE-001 2,5E+000 TL-1-14-030 06/30/2010 5.9E+000 MR/h t
  • 6.OOE-001 2,5E+000 TL-1-14-031 09/30/2010 6.5E+000 MR/h t
  • 6.OOE-001 25E+000 Results marked with are greater than 2 Sigma Error, Results marked with t are greater than the Discrimination Level Page 27 of 36

Indicator Locations - TL 14 : REMP TLD [Exposure Rate] Continued...

12014001 800e400 I esl "-DicimntinLee 400&+000 206+4000 Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-14-032 12/31/2010 8.7E+000 pR/h f* 8.00E-001 2.5E+000 Results marked with

  • are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 28 of 36

Figure 4.8 Exposure Rate Trend at TL-1-15 Indicator Locations - TL-I-1 5 REMP TLD [Exposure Rate]

1200+001 I 0c14000 00400"M 200&e4'00 Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-15-001 03131/2003 7.1E+000 pR/h t

  • 1.62E+000 2,5E+000 TL-1-15-002 06/30/2003 1.OE+001 pR/h t
  • 1.34E+000 2,5E+000 TL-1-15-003 09/30/2003 8.5E+000 MR/h t
  • 8,00E-001 2,5E+000 TL-1-15-004 12/31/2003 t.OE+001 PR/h t
  • 1.08E+000 2.5E+000 TL-1-15-005 03/31/2004 8.3E+000 MR/h t
  • 8.OOE-001 2.5E+000 TL-1-15-006 06130/2004 1.OE+001 jR/h t
  • 1.06E+000 2.5E+000 TL-1-15-007 09/30/2004 8.OE+000 MR/h t
  • 8.40E-001 2.5E+000 TL-1-15-008 12/31/2004 8.6E+000 MR/h t
  • 6.OOE-001 25E+000 TL-1-15-009 03/31/2005 9.1 E+000 MR/h t
  • 920E-001 2.5E+000 TL-1-15-010 06/30/2005 1.1E+001 MRJh t
  • 1.06E+000 2.5E+000 TL-I-15-011 09/30/2005 1.2E+001 MR/h t
  • 1.18E+000 2+5E+000 TL-1-15-012 12/31/2005 9.6E+000 MR/h t* 9.60E-001 2.5E+000 TL-1-15-013 03/31/2006 1.OE+001 MR/h t* 1.04E+000 2.5E+000 TL-1-15-014 06/30/2006 9.6E+000 MR/h t
  • 9.60E-001 2.5E+000 TL-1-15-015 09/30/2006 I.iE+001 MR/h t
  • 1,06E+000 2.5E+000 TL-1-15-016 12/31/2006 1.2E+001 jR/h t
  • 1,16E+000 2.5E+000 TL-1-15-017 03/31/2007 9.OE+000 MR/h t
  • 9.OOE-001 2.5E+000 TL-1-15-018 06/30/2007 8.6E+000 MR/h t
  • 8.60E-001 2.5E+000 TL-1-15-019 09/30/2007 7.OE+000 MR/h t
  • 7.00E-001 2.5E+000 TL-1-15-020 12/31/2007 8.1 E+000 MR/h t
  • 8.OOE-001 2.5E+000 TL-1-15-021 03/31/2008 1.2E+001 MR/h t* 1.20E+000 2.5E+000 TL-1-15-022 06/30/2008 7.9E+000 MR/h t
  • 8OOE-001 2.5E+000 TL-1-15-023 09/30/2008 7.1 E+000 MR/h t
  • 8.OOE-001 2.5E+000 TL-1-15-024 12/31/2008 7.2E+000 MR/h t
  • 8OOE-001 2.5E+000 TL-1-15-025 03/31/2009 9.9E+000 MR/h t
  • 1.OOE+000 25E+000 TL-1-15-026 06/30/2009 9.2E+000 jR/h t
  • 1.OOE+000 2.5E+000 TL-1-15-027 09/30/2009 7.6E+000 MR/h t
  • 8OOE-001 2.5E+000 TL-1-15-028 12/31/2009 7.3E+000 MR/h t
  • 8.OOE-001 2.5E+000 TL-1-15-029 03/31/2010 1.1E+001 MR/h t
  • 1.20E+000 2.5E+000 TL-1-15-030 06/30/2010 7.3E+000 MR/h t
  • 8.OOE-001 2.5E+000 TL-1-15-031 09/30/2010 7.8E+000 MR/h t
  • 8.00E-001 2.5E+000 Results marked with are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 29 of 36

Indicator Locations - TL-1-1 5 REMP TLD [Exposure Rate] Continued...

1001e0000 I--Result -- Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-15-032 12/31/2010 9.1E+000 pR/h t 1 M0E+000 ZK5+000 Results marked with

  • are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 30 of 36

Figure 4.9 Exposure Rate Trend at TL-1-16 Indicator Locations - TL-*I-1 6 REMP TLD [Exposure Rate]

1.400+001A 1100e*00 6 00""

2-00"M00 000e4000 Result Discrimination Level 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 pR/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 06/30/2004 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 25E+000 TL-1-16-008 12/31/2004 8.8E+000 pR/h t
  • 8.80E-001 25E+000 TL-1-16-009 03/31/2005 8.1 E+000 pR/h t
  • 8.20E-001 2.5E+000 TL-1-16-010 06/30/2005 1.1 E+001 pR/h t
  • 1.14E+000 25E+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 i.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 pR/h t
  • 9.60E-001 2.5E+000 TL-1-16-015 09/30/2006 1.IE+001 pR/h t
  • 1.06E+000 2.5E+000 TL-1-16-016 12131/2006 1.4E÷001 pR/h t
  • 1.36E+000 2.5E+000 TL-1-16-017 03/31/2007 8.6E+000 pR/h t
  • 8.60E-001 2.5E+000 TL-1-16-018 06/30/2007 9.5E+000 pR/h t
  • 9.60E-001 2.5E+000 TL-1-16-019 09/30/2007 7.5E+000 pR/h t
  • 7.60E-001 2.5E+000 TL-1-16-020 12/31/2007 8.1E+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-16-021 03/31/2008 9.9E+000 pR/h t
  • 1.OOE+000 2.5E+000 TL-1-16-022 06/30/2008 8.9E+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-16-023 09/30/2008 7.1E+000 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-16-024 12/31/2008 8.5E+000 pR/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 pR/h t
  • 8.OOE-001 2.5E+000 TL-1-16-027 09/30/2009 6.2E+000 pR/h t
  • 6.OOE-001 2.5E+000 TL-1-16-028 12/31/2009 8.7E÷000 pR/h t
  • 8.00E-001 2.5E+000 TL-1-16-029 03/31/2010 1.IE+001 pR/h t
  • 1.00E+000 2.5E+000 TL-1-16-030 06/30/2010 6.8E÷000 pR/h t
  • 6.OOE-001 2.5E+000 TL-1-16-031 09/30/2010 8.6E+000 pR/h t
  • 8.OOE-001 295E+000 Results marked with are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 31 of 36

Indicator Locations - TL-1-1 6 REMP TLD [Exposure Rate] Continued...

I .a.. Mi 11 i 20"M~I I 00"MI A 4Z00e000

-Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-1-16-032 12131/2010 8.2E+000 pR/h t

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

Results marked with t are greater than the Discrimination Level Page 32 of 36

Figure 4.10 Exposure Rate Trend at Control Location TL-O-36 Control Location - TL-0-36 : REMP TLD [Exposure Rate]

1200+001 1o*O..I 800e.000 600e1+000 Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level TL-O-36-001 03/31/2003 7.9E+000 jR/h t

  • 1.68E+000 2.5E+000 TL-O-36-002 06/30/2003 7.5E+000 PR/h t
  • 1.04E+000 2.5E+000 TL-O-36-003 09/30/2003 7.8E+000 PR/h t
  • 1.34E+000 25E+000 TL-O-36-004 12/31/2003 6.8E+000 JR/h t
  • 680E-001 2.5E+000 TL-O-36-005 03/31/2004 8.6E+000 PR/h t
  • 6.80E-001 2.5E+000 TL-O-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-O-36-008 12/31/2004 6.1E+000 pR/h t
  • 4,80E-001 2.5E+000 TL-0-36-009 03/31/2005 8.1E+000 pR/h t
  • 8OOE-001 2.5E+000 TL-0-36-010 06/30/2005 8.7E+000 pR/h t
  • 860E-001 2.5E+000 TL-0-36-011 09/30/2005 1.OE+001 pRFh t
  • 1.OOE+000 2.5E+000 TL-0-36-012 12/31/2005 8.OE+000 pR/h t
  • 8OOE-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 pR/h t
  • 1.12E+000 25E+000 TL-0-36-017 03/31/2007 6.8E+000 pR/h t
  • 6.80E-001 2.5E+000 TL-0-36-018 06/30/2007 7.2E+000 pR/h t
  • 7.20E-001 2.5E+000 TL-0-36-019 09/30/2007 7.3E+000 pR/h t
  • 720E-001 2.5E+000 TL-0-36-020 12/31/2007 6.8E+000 PR/h t
  • 680E-001 25E+000 TL-0-36-021 03/31/2008 7.6E+000 pR/h t
  • 8OOE-001 2.5E+000 TL-0-36-022 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 PR/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-0-36-026 06/30/2009 6.5E+000 jR/h t
  • 6.OOE-001 2.5E+000 TL-0-36-027 09/30/2009 5.8E+000 JRJh t
  • 6.OOE-001 2.5E+000 TL-0-36-028 12/31/2009 5.9E+000 jR/h t
  • 6.OOE-001 25E+000 TL-0-36-029 03/31/2010 7.4E+000 PR/h t
  • 8OOE-001 2.5E+000 TL-0-36-030 06/30/2010 5.OE÷000 IR/h t
  • 6,00E-001 25E+000 TL-0-36-031 09/30/2010 5.2E+000 pR/h t
  • 6.OOE-001 2.5E+000 Results marked with are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 33 of 36

Control Location - TL-O-36 REMP TLD [Exposure Rate] Continued...

12Oe+01 TOO-603h TL0-60321/1/0064E00pRht6OOOO 25+0 Results marked with

  • are greater than 2 Sigma Error.

Results marked with t are greater than the Discrimination Level Page 34 of 36

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.

Two deviations occurred in 2010. There was only one TLD at Control location TL-O-36 in the 2nd and 3rd quarter. Although two TLDs were deployed for those quarters, one of the TLDs was missing at the time of TLD changeout. These missing TLDs have no impact on the calculation of dose to the members of the public.

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 all 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 Page 35 of 36

location measurements. As in previous years, the 2010 dose estimate assumes a total of 325 hours0.00376 days <br />0.0903 hours <br />5.373677e-4 weeks <br />1.236625e-4 months <br /> occupancy for the dose calculation; of which 32.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> are used in both the first and fourth quarters and 130 hours0.0015 days <br />0.0361 hours <br />2.149471e-4 weeks <br />4.9465e-5 months <br /> are used in both the 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 1.6 mrem. This value is only 6 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 33.
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".

Page 36 of 36

MAINE YANKEE INDEPENDENT SPENT FUEL STORAGE INSTALLATION License No. DPR-36 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT January - December 2010 NV.

.RSCS Radiatior Safety & Control Services March 2011 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 2010. There were no gaseous or liquid releases in 2010.

Table 3 summarizes waste shipped off-site for disposal for each half year of 2010. There was no waste shipped in 2010.

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 2010.

Page 2 of 15

Table 1 MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2010 Gaseous Effluents-Summation of All Releases Nuclides Released Units 1st 2nd 3rd 4th Error I Quarter Quarter Quarter Quarter A. Fission and Activation Gases Total Release Ci N/A* N/A* N/A* N/A* N/A*

Average release rate_ pCi/s N/A* N/A* N/A* N/A*

Percent of regulatory limit  % N/A* N/A* N/A* N/A*

B. lodines Total lodines released Ci N/A* N/A* N/A* N/A* N/A*

Average release rate PCi/s N/A* N/A* N/A* N/A*

Percent of regulatory limit  % N/A* N/A* N/A* N/A*

C. Particulates Particulates Released Ci N/A* N/A* N/A* N/A* N/A*

Average release rate PCi/s N/A* N/A* N/A* N/A*

Percent of regulatory limit  % N/A* N/A* N/A* N/A*

Gross alpha radioactivity Ci N/A* N/A* N/A* N/A*

D. Tritium Total release Ci N/A* N/A* ] N/A* N/A* N/A*

Average release rate PCi/s N/A* N/A* N/A* N/A*

Percent of regulatory limit  % N/A* N/A* N/A* N/A*

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

Page 3 of15

Table 1A MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2010 Gaseous Effluents - Ground Level Releases - Batch Mode Nuclides Released Unit 1st 2nd 3rd 4th Total Quarter Quarter Quarter Quarter Krypton-85 Ci N/A* N/A* N/A* N/A* N/A*

Krypton-85m Ci N/A* N/A* N/A* N/A* N/A*

Krypton-87 Ci N/A* N/A* N/A* N/A* N/A*

Krypton-88 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-1 33 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-135 Ci N/A* N/A* N/A* N/A*ý N/A*

Xenon-135m Ci N/A* N/A* N/A* N/A* N/A*

Xenon-1 38 Ci N/A* N/A* N/A* N/A* N/A*

Unidentified Ci N/A* N/A* N/A* N/A* N/A*

Total for period Ci N/A* N/A* N/A* N/A* N/A*

Iodine-131 Ci N/A* N/A* N/A* N/A* N/A*

Iodine-133 Ci N/A* N/A* N/A* N/A* N/A*

Iodine-135 Ci N/A* N/A* N/A* N/A* N/A*

Total for period Ci N/A* N/A* N/A* N/A* N/A*

Strontium-89 Ci N/A* N/A* N/A* N/A* N/A*

Strontium-90 Ci N/A* N/A* N/A* N/A* N/A*

Cesium-1 34 Ci N/A* N/A* N/A* N/A* N/A*

Cesium-137 Ci N/A* N/A* N/A* N/A* N/A*

Cobalt-60 Ci N/A* N/A* N/A* N/A* N/A*

Barium-Lanthanum-140 Ci N/A* N/A* N/A* N/A* N/A*

Others-Plutonium-238 Ci N/A* N/A* N/A* N/A* N/A*

Curium-243,244 Ci N/A* N/A* N/A* N/A* N/A*

Uranium-234 Ci N/A* N/A* N/A* N/A* N/A*

Uranium-238 Ci N/A* N/A* N/A* N/A* N/A*

Thorium-232 Ci N/A* N/A* N/A* N/A* N/A*

Radium-226 Ci N/A* N/A* N/A* N/A* N/A*

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

Page 4 of 15

Table 1B MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2010 Gaseous Effluents - Ground Level Releases - Continuous Mode Nuclides Released Unit 1st 2nd 3rd 4th Total Quarter Quarter Quarter Quarter 1, Fission Gases Krypton-85 Ci N/A* N/A* N/A* N/A* N/A*

Krypton-85m Ci N/A* N/A* N/A* N/A* N/A*

Krypton-87 Ci N/A* N/A* N/A* N/A* N/A*

Krypton-88 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-1 33 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-135 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-135m Ci N/A* N/A* N/A* N/A* N/A*

Xenon-1 38 Ci N/A* N/A* N/A* N/A* N/A*

Unidentified Ci N/A* N/A* N/A* N/A* N/A*

Total for period Ci N/A* N/A* N/A* N/A* N/A*

2., Iodines _

Iodine-131 Ci N/A* N/A* N/A* N/A* N/A*

Iodine-133 Ci N/A* N/A* N/A* N/A* N/A*

Iodine-135 Ci N/A* N/A* N/A* N/A* N/A*

Total for period Ci N/A* N/A* N/A* N/A* N/A*

3. PSrtiul-811N00 Strontium-89 Ci N/A* N/A* N/A* N/A* N/A*

Strontium-90 Ci N/A* N/A* N/A* N/A* N/A*

Cesium-134 Ci N/A* N/A* N/A* N/A* N/A*

Csu-37Ci N/A* N/A* N/A* N/A* N/A*

Cobalt-60 Ci N/A* N/A* N/A* N/A* N/A*

Barium-Lanthanum-140 Ci N/A* N/A* N/A* N/A* N/A*

Others-Plutonium-238 Ci N/A* N/A* N/A* N/A* N/A*

Curium-243,244 Ci N/A*" N/A* N/A* N/A* N/A*

Uranium-234 Ci N/A* N/A* N/A* N/A* N/A*

Uranium-238 Ci N/A* N/A* N/A* N/A* N/A*

Thorium-232 Ci N/A* N/A* N/A* N/A* N/A*

Radium-226 Ci N/A* N/A* N/A* N/A* N/A*

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

Page 5 of 15

Table IC MAINE YANKEE ISFSI

-Effluent and Waste Disposal Annual Report 2010 Gaseous Effluents - Elevated Releases - Batch Mode Nuclides Released Unit 1st 2nd 3rd 4th Total Quarter Quarter Quarter Quarter 1.Fission f Gases Krypton-85 Ci N/A* N/A* N/A* N/A* N/A*

Krypton-85m Ci N/A* N/A* N/A* N/A* N/A*

Krypton-87 Ci N/A* N/A* N/A* N/A* N/A*

Krypton-88 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-133 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-135 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-1 35m Ci N/A* N/A* N/A* N/A* N/A*

Xenon-138 Ci N/A* N/A* N/A* N/A* N/A*

Unidentified Ci N/A* N/A* N/A* N/A* N/A*

Total for period Ci N/A* N/A* N/A* N/A* N/A*

Iodine-131 Ci N/A* N/A* N/A* N/A* N/A*

Iodine-133 Ci N/A* N/A* N/A* N/A* N/A*

Iodine-135 Ci N/A* N/A* N/A* N/A* N/A*

Total for period Ci N/A* N/A* N/A* N/A* N/A*

Strontium-89 Ci N/A* N/A* N/A* N/A* N/A*

Strontium-90 Ci N/A* N/A* N/A* N/A* N/A*

Cesium-134 Ci N/A* N/A* N/A* N/A* N/A*

Cesium-1 37 Ci N/A* N/A* N/A* N/A* N/A*

Cobalt-60 Ci N/A* N/A* N/A* N/A* N/A*

Barium-Lanthanum-140 Ci N/A* N/A* N/A* N/A* N/A*

Others-Plutonium-238 Ci N/A* N/A* N/A* N/A* N/A*

Curium-243,244 Ci N/A* N/A* N/A* N/A* N/A*

Uranium-234 Ci N/A* N/A* N/A* N/A* N/A*

Uranium-238 Ci N/A* N/A* N/A* N/A* N/A*

Thorium-232 Ci N/A* N/A* N/A* N/A* N/A*

Radium-226 Ci N/A* N/A* N/A* N/A* N/A*

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

Page 6 of 15

Table 1D MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2010 Gaseous Effluents - Elevated Releases - Continuous Mode Nuclides Released Unit 1st 2nd 3rd 4th Total Quarter Quarter Quarter Quarter

1. Fission Gases Krypton-85 Ci N/A* N/A* N/A* N/A* N/A*

Krypton-85m Ci N/A* N/A* N/A* N/A* N/A*

Krypton-87 Ci N/A* N/A* N/A* N/A* N/A*

Krypton-88 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-133 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-135 Ci N/A* N/A* N/A* N/A* N/A*

Xenon-135m Ci N/A* N/A* N/A* N/A* N/A*

Xenon-138 Ci N/A* N/A* N/A* N/A* N/A*

Unidentified Ci N/A* N/A* N/A* N/A* N/A*

Total for period Ci N/A* N/A* N/A* N/A* N/A*

2.. !odjnes ..... I Iodine-131 Ci N/A* N/A* N/A* N/A* N/A*

Iodine-133 Ci N/A* N/A* N/A* N/A* N/A*

Iodine-1 35 Ci N/A* N/A* N/A* N/A* N/A*

Total for period Ci N/A* N/A* N/A* N/A* N/A*

3. Particulates Strontium-89 Ci N/A* N/A* N/A* N/A* N/A*

Strontium-90 Ci N/A* N/A* N/A* N/A* N/A*

Cesium-134 Ci N/A* N/A* N/A* N/A* N/A*

Cesium-1 37 Ci N/A* N/A* N/A* N/A* N/A*

Cobalt-60 Ci N/A* N/A* N/A* N/A* N/A*

Barium-Lanthanum-140 Ci N/A* N/A* N/A* N/A* N/A*

Others-Plutonium-238 Ci N/A* N/A* N/A* N/A* N/A*

Curium-243,244 Ci N/A* N/A* N/A* N/A* N/A*

Uranium-234 Ci N/A* N/A* N/A* N/A* N/A*

Uranium-238 Ci N/A* N/A* N/A* N/A* N/A*

Thorium-232 Ci N/A* N/A* N/A* N/A* N/A*

Radium-226 Ci N/A* N/A* N/A* N/A* N/A*

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

Page 7 of 15

Table 2 MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2010 Liquid Effluents - Summation of All Releases Nuclides Released Unit 1st 2nd 3rd 4th Error Quarter Quarter Quarter Quarter A. Fission and Activation Products Total Release (not including Ci N/A* N/A* N/A* N/A* N/A*

tritium, gases, alpha)

Average diluted concentration pCi/mI N/A* N/A* N/A* N/A*

during period Percent of applicable limit  % N/A* N/A* N/A* N/A*

B. Tritium Total Release Ci N/A* N/A* N/A* N/A* N/A*

Average diluted concentration pCi/mI N/A* N/A* N/A* N/A*

during period Percent of applicable limit  % N/A* N/A* N/A* N/A*

C. Dissolved and Entrained Gases Total Release Ci N/A* N/A* N/A* N/A* N/A*

Average diluted concentration pCi/mI N/A* N/A* N/A* N/A*

during period Percent of applicable limit  % N/A* N/A* N/A* N/A*

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

Average diluted concentration pCi/ml N/A* N/A* N/A* N/A*

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

(prior to dilution)

F. Volume of Dilution Water Liters. N/A* N/A* N/A* N/A*

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

Page 8 of 15

Table 2A MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2010 Liquid Effluents - Batch Mode I 2nd 3rd 4 I TothIs Quarter I Quarter Quarter __

.btrontium-ti3 N/A* N/A* N/A* N/A*

Strontium-90 Ci N/A* N/A* N/A* N/A* N/A*

Cesium-1 34 Ci N/A* N/A* NIA* N/A* NIA*

Cesium-1 37 Ci N/A* N/A* N/A* N/A* N/A*

Iodine-131 Ci N/A* N/A* N/A* N/A* N/A*

Cobalt-58 Ci N/A* N/A* N/A* N/A* N/A*

Cobalt-60 Ci N/A* N/A* N/A* N/A* N/A*

Iron-59 Ci N/A* N/A* N/A* N/A* N/A*

Zinc-65 Ci N/A* N/A* N/A* N/A* N/A*

Manganese-54 Ci N/A* N/A* N/A* N/A* N/A*

Chromium-51 Ci N/A* N/A* N/A* N/A* N/A*

Zirconium-Niobium-95 Ci N/A* N/A* N/A* N/A* N/A*

Molybdenum-99 Ci N/A* N/A* N/A* N/A* N/A*

Technetium-99m Ci N/A* N/A* N/A* N/A* N/A*

Barium-Lathanium-140 Ci N/A* N/A* N/A* N/A* N/A*

Cerium-141 Ci N/A* N/A* N/A* N/A* N/A*

Others- Iron-55 Ci N/A* N/A* N/A* N/A* N/A*

Antimony-125 Ci N/A* N/A* N/A* N/A* N/A*

Unidentified Ci N/A* N/A* N/A* N/A* N/A*

Total for period (above) Ci N/A* N/A* N/A* N/A* N/A*

Dissolved and Entrained Ci N/A* N/A* N/A* N/A* N/A*

Gasses Tritium Ci N/A* N/A* N/A* N/A* N/A*

Gross Alpha Ci N/A* N/A* N/A* N/A* N/A*

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

Page 9 of 15

Table 2B MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report 2010 Liquid Effluents- Continuous Mode Nuclides Released Unit 1st 2nd 3rd 4th Totals Quarter Quarter Quarter Quarter Strontium-89 Ci N/A* N/A* N/A* N/A* N/A*

Strontium-90 Ci N/A* N/A* N/A* N/A* N/A*

Cesium-134 Ci N/A* N/A* N/A* N/A* N/A*

Cesium-137 Ci N/A* N/A* N/A* N/A* N/A*

Iodine-131 Ci N/A* N/A* N/A* N/A* N/A*

Cobalt-58 Ci N/A* N/A* N/A* N/A* N/A*

Cobalt-60 Ci N/A* N/A* N/A* N/A* N/A*

Iron-59 Ci N/A* N/A* N/A* N/A* N/A*

Zinc-65 Ci N/A* N/A* N/A* N/A* N/A*

Manganese-54 Ci N/A* N/A* N/A* N/A* N/A*

Chromium-51 Ci N/A* N/A* N/A* N/A* N/A*

Zirconium-Niobium-95 Ci N/A* N/A* N/A* N/A* N/A*

Molybdenum-99 Ci N/A* N/A* N/A* N/A* N/A*

Technetium-99m Ci N/A* N/A* N/A* N/A* N/A*

Barium-Lathanium-140 Ci N/A* N/A* N/A* N/A* N/A*

Cerium-141 Ci N/A* N/A* N/A* N/A* N/A*

Others- Iron-55 Ci N/A* N/A* N/A* N/A* N/A*

Antimony-125 Ci N/A* N/A* N/A* N/A* N/A*

Unidentified Ci N/A* N/A* N/A* N/A* N/A*

Total for period (above) Ci N/A* N/A* N/A* N/A* N/A*

Dissolved and Entrained Ci N/A* N/A* N/A* N/A* N/A*

Gasses Tritium Ci N/A* N/A* N/A* N/A* N/A*

Gross Alpha Ci N/A* N/A* N/A* N/A* N/A*

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

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Table 3 MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report First Half 2010 Low Level Waste Shipments Resins, Filters and Evaporator Bottoms Volume Curies Shipped Waste Class Solidifying Agent ftW m3 Curies A 0 0 0 B 0 0 0 C 0 0 0 All 0 0___ 0 0 Major radionuclides for above data:

Dry Active Waste Volume Curies Shipped Waste Class Solidifying Agent fn m3 Curies A 0 0 0 B 0 0 0 C 0 0 0 All 0 0 0 Major radionuclides for above data:

Irradiated Components Volume Curies Shipped 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:

Other Waste Volume Curies Shipped Waste Class Solidifying Agent ft3 m3 Curies A 0 0 0 B 0 0 0 C 0 0 0 All 0 0 0 Major radionuclides for above data:

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Table 3A MAINE YANKEE ISFSI Effluent and Waste Disposal Annual Report Second Half 2010 Low Level Waste Shipments Resins, Filters and Evaporator Bottoms Volume Curies Shipped Waste Class Solidifying Agent ft3 m3 Curies A 0 0 0 B 0 0 0 C 0 0 0 All 0 0 0 Major radionuclides for above data:

Dry Active Waste Volume Curies Shipped Waste Class Solidifying Agent Wt m3 Curies A 0 0 0 B 0 0 0 C 0 0 0 All '0 0 0 Major radionuclides for above data:

Irradiated Components Volume Curies Shipped Waste Class Solidifying Agent W mi Curies A 0 0 0 B 0 0 0 C 0 0 0 All 0 0 0 Major radionuclides for above data:

Other Waste Volume Curies Shipped Waste Class Solidifying Agent ftm m_ Curies A 0 0 0 B 0 0 0 C 0 0 0 All 0 0 0 Major radionuclides for above data:

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Appendix A Radiation Dose Assessment There were no gaseous or liquid effluent releases in 2010. 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.

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Appendix B Unplanned Releases There were no unplanned releases of radioactive materials from the site in 2010.

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Appendix C Off-site Dose Calculation Manual Changes There were no changes to the Off-site Dose Calculation Manual in 2010.

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