CY-10-007, Independent Spent Fuel Storage Installation - Annual Radiological Environmental Operating Report and Annual Radioactive Effluent Release Report for 2009

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Independent Spent Fuel Storage Installation - Annual Radiological Environmental Operating Report and Annual Radioactive Effluent Release Report for 2009
ML100970029
Person / Time
Site: Haddam Neck  File:Connecticut Yankee Atomic Power Co icon.png
Issue date: 03/29/2010
From: Lenois J
Connecticut Yankee Atomic Power Co
To:
Document Control Desk, NRC/FSME
References
CY-10-007
Download: ML100970029 (45)
v • d • e


Text

CONNECTICUT YANKEE ATOMIC .POWER COMPANY HADDAM NECK PLANT 362 INJUN HOLLOW ROAD

  • EAST HAMPTON, CT 06424-3099 March 29, 2010 CY-1 0-007 UNITED STATES NUCLEAR REGULATORY COMMISSION Attention: Document Control Desk Washington, D. C. 20555-0001

Reference:

License No. DPR-61 (Docket Nos. 50-213 and 72-39)

Subject:

Haddam Neck Connecticut Yankee Independent Spent Fuel Storage Installation Annual Radiological Environmental Operating Report and Annual

.Radioactive Effluent Release Report for 2009 Gentlemen:

Enclosed are the 2009 Annual Radiological Environmental Operating Report and the Annual Radioactive Effluent Release Report for the Haddam Neck Connecticut Yankee Independent Spent Fuel Storage Installation.

If you have any questions, please contact me at (860)-267-6426 extension 303, or at JLenois@3yankees.com.

Sincerely, James Lenois ISFSI Manager Attachments C: Mr. Samuel Collins, Regional Administrator, NRC Region I Mr. John Goshen, Project Manager, NRC Headquarters Mr. Mark Roberts, NRC Region I Mr. E. L. Wilds, Jr. Director, CT DEP Monitoring and Radiation Division

HADDAM NECK INDEPENDENT SPENT FUEL STORAGE INSTALLATION License No. DPR-61 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT January - December 2009

<RSCS Radiation Safety & Control Services March 2010 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 2009. There were no gaseous or liquid releases in 2009.

Table 3 summarizes waste shipped off-site for disposal for each half year of 2009. There was no waste shipped in 2009.

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 2009.

Page 1ofl16

Table 1A HADDAM NECK ISFSI Effluent and Waste Disposal Annual Report First and Second Quarters, 2009 Gaseous Effluents-Summation of All Releases Nuclides Released Unit 1st 2nd Est. Total Quarter Quarter Error, %

A. Fission and Activation Gases ___

1. Total Release Ci N/A* N/A* N/A*
2. Average release rate for period pCi/sec N/A* N/A*
3. Percent of regulatory limit  % N/A* N/A*

B. lodines ,._., _ _ _

1. Total Iodine-131 Ci N/A* N/A* N/A*
2. Average release rate for period pCi/sec N/A* N/A*
3. Percent of regulatory limit  % N/A* N/A*

C. Particulates

1. Particulates with T-1/2 > 8 days Ci N/A* N/A* N/A*
2. Average release rate for period pCi/sec N/A* N/A*
3. Percent of regulatory limit  % N/A* N/A*
4. Gross alpha radioactivity Ci N/A* N/A*

D. Tritium

1. Total release Ci N/A* N/A* N/A*
2. Average release rate for period pCi/sec N/A* N/A*
3. Percent of regulatory limit  % N/A* N/A*

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

Page 2 of 16

Table 1A HADDAM NECK ISFSI Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2009 Gaseous Effluents-Summation of All Releases Nuclides Released Unit 3rd 4th Est. Total Quarter Quarter Error, %

A. Fission and Activation Gases

1. Total Release Ci N/A* N/A* N/A*
2. Average release rate for period pCi/sec N/A* N/A*
3. Percent of regulatory limit  % N/A* N/A*

B. lodines ... . ______ __ . __. ___"

1. Total Iodine-131 Ci N/A* N/A* N/A*
2. Average release rate for period pCi/sec N/A* N/A*
3. Percent of regulatory limit  % N/A* N/A*

C. Particulates

1. Particulates with T-1/2 > 8 days Ci N/A* N/A* N/A*
2. Average release rate for period pCi/sec N/A* N/A*
3. Percent of regulatory limit  % N/A* N/A*
4. Gross alpha radioactivity Ci N/A* N/A*

D. Tritium ._ _._ _ _

1. Total release Ci N/A* N/A* N/A*
2. Average release rate for period pCi/sec N/A* N/A*
3. Percent of regulatory limit  % N/A* N/A*

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

Page 3 of 16

Table 1B HADDAM NECK ISFSI Effluent and Waste Disposal Annual Report First and Second Quarters, 2009 Gaseous Effluents-Elevated Releases Continuous Mode Batch Mode Nuclides Released Unit 1st Quarter 2nd Quarter Ist Quarter T Quarter 2nd

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

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

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

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

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

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

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

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

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

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

2. lodines Iodine-131 Ci N/A* N/A* N/A* N/A*

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Page 4 of 16

Table I B HADDAM NECK ISFSI Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2009 Gaseous Effluents-Elevated Releases Continuous Mode Batch Mode Nuclides Released Unit 3rd 4th 3rd 4th Quarter Quarter Quarter Quarter

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

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

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

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

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

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

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

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

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

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

2. lodines Iodine-131 Ci N/A* N/A* N/A* N/A*

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Page 5 of 16

Table 1C HADDAM NECK ISFSI Effluent and Waste Disposal Annual Report First and Second Quarters, 2009 Gaseous Effluents-Ground Level Releases Continuous Mode Batch Mode Nuclides Released Unit 1st Quarter 2nd Quarter Ist 2nd Quarter Quarter

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

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

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

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

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

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

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

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

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

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

2. lodines lodine-131 Ci N/A* N/A* N/A* N/A*

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Page 6 of 16

Table 1C HADDAM NECK ISFSI Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2009 Gaseous Effluents-Ground Level Releases Continuous Mode Batch Mode Nuclides Released Unit 3rd Quarter 4th 3rd 4th Quarter Quarter Quarter

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

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

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

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

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

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

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

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

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

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

2. lodines Iodine-131 Ci N/A* N/A* N/A* N/A*

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Page 7 of 16

Table 2A HADDAM NECK ISFSI Effluent and Waste Disposal Annual Report First and Second Quarters, 2009 Liquid Effluents-Summation of All Releases Nuclides Released Unit 1st 2nd TEst. Total I Quarter [Quarter Error, %

A. Fission and Activation Products

1. Total Release (not including Ci N/A* N/A* N/A*

tritium, gases, alpha)

2. Average diluted concentration PCi/mI N/A* N/A*

during period

3. Percent of applicable limit  % N/A* N/A*

B. Tritium

1. Total Release Ci N/A* N/A* N/A*
2. Average diluted concentration IpCi/ml N/A* N/A*

during period

3. Percent of applicable limit  % N/A* N/A*

C. Dissolved and Entrained Gases

1. Total Release Ci N/A* N/A* N/A*
2. Average diluted concentration pCi/mI N/A* N/A*

during period

3. Percent of applicable limit  % N/A* N/A*

D. Gross Alpha Radioactivity

1. Total release Ci N/A* N/A* N/A*
2. Average diluted concentration pCi/mI N/A* N/A*

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

to dilution)

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

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

Page 8 of 16

Table 2A HADDAM NECK ISFSI Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2009 Liquid Effluents-Summation of All Releases Nuclides Released Unit .3rd 4th Est.Total, Quarter Quarter Error,%

A. Fission and Activation Products

1. Total Release (not including Ci N/A* N/A* N/A*

tritium, gasesalpha)

2. Average diluted concentration pCi/ml N/A* NIA*

during period

3. Percent of applicable limit  % N/A* N/A*

B. Tritium

1. Total Release Ci N/A* N/A* N/A*
2. Average diluted concentration pCi/ml N/A* N/A*

during period

3. Percent of applicable limit  % N/A* N/A*

C. Dissolved and Entrained Gases

1. Total Release Ci N/A* N/A* N/A*
2. Average diluted concentration pCi/ml N/A* N/A*

during period

3. Percent of applicable limit  % N/A* N/A*

D. Gross Alpha Radioactivity

1. Total release Ci N/A* N/A* N/A*
2. Average diluted concentration pCi/ml N/A* N/A*

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

to dilution)

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

During Period I I III N/A*= Not Applicable There are no liquid effluents associated with the Haddam Neck Independent Spent Fuel Storage Installation (ISFSI)

Page 9 of 16

Table 2B HADDAM NECK ISFSI Effluent and Waste Disposal Annual Report First and Second Quarters, 2009 Liquid Effluents Cnntinijnij~ MndA Ratrch Mndln Nuclides Released Unit 1st, 2nd Ist 2nd Quarter Quarter -Quarter Quarter Strontium-89 Ci N/A* N/A* N/A* N/A*

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Antimony-1 25 Ci N/A* N/A* N/A* N/A*

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

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

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

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

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

Page 10 of 16

Table 2B HADDAM NECK ISFSI Effluent and Waste Disposal Annual Report Third and Fourth Quarters, 2009 Liquid Effluents Cnntin.,n.j~ Modn R~tt~h Mndn_

Nuclides Released Unit 3rd 4th . 3rd 4th Quarter Quarter Quarter Quarter Strontium-89 Ci N/A* N/A* N/A* N/A*

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Page 11 of 16

Table 3 HADDAM NECK ISFSI Effluent and Waste Disposal Semiannual Report First Half, 2009 Solid Waste and Irradiated Fuel Shipments A. Solid Waste Shipped Off-Site for Burial or Disposal (Not Irradiated Fuel)

1. Type of Waste Unit 6-Month Est. Total Error, Period
a. Spent resins, filter sludges, m3 0.0 Ci 0.0 evaporator bottoms, etc.
b. Dry compressible waste, m3 0.0 contaminated equipment, etc. Ci 0.0
c. Irradiated components, m3 0.0 control rods, etc. Ci 0.0
2. Estimate of major nuclide composition (by type of waste)
a. No Shipments  % 0
b. No Shipments  % 0
c. No Shipments  % 0
3. Solid Waste Disposition Number of Shipments Mode of Transportation Destination None B. Irradiated Fuel Shipments (Disposition)

Number of Shipments Mode of Transportation Destination None Page 12 of 16

Table 3 HADDAM NECK ISFSI Effluent and Waste Disposal Semiannual Report Second Half, 2009 Solid Waste and Irradiated Fuel Shipments A. Solid Waste Shipped Off-Site for Burial or Disposal (Not Irradiated Fuel)

1. Type of Waste Unit 6-Month Est. Total Error, Period
a. Spent resins, filter sludges, m3 0.0 evaporator bottoms, etc. Ci 0.0
b. Dry compressible waste, m3 0.0 contaminated equipment, etc. Ci 0.0 m3 0.0
c. Irradiated components, Ci 0.0 control rods, etc.
2. Estimate of major nuclide composition (by type of waste)
a. No Shipments 0
b. No Shipments  % 0
c. No Shipments  % 0
3. Solid Waste Disposition Number of Shipments Mode of Transportation Destination None B. Irradiated Fuel Shipments (Disposition)

Number of Shipments Mode of Transportation Destination None Page 13 of 16

Appendix A Radiation Dose Assessment There were no gaseous or liquid effluent releases in 2009. Therefore, an assessment of radiation doses to the most likely exposed member(s) of the public to show compliance with 40CFR190 from effluents was not required.

Page 14 of 16

Appendix B Abnormal Releases There were no abnormal releases of radioactive materials from the site in 2009.

Page 15 of 16

Appendix C Off-site Dose Calculation Manual Changes There were no changes to the Off-site Dose Calculation Manual in 2009.

Page 16 of 16

HADDAM NECK INDEPENDENT SPENT FUEL STORAGE INSTALLATION License No. DPR-61 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT

. January - December 2009 hRSCS Radiation Safety & Control Services March 2010 Prepared by:

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

EXECUTIVE

SUMMARY

Connecticut Yankee's Haddam Neck facility was permanently shutdown in 1996. 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 Connecticut Yankee Independent Spent Fuel Storage Installation (ISFSI) located in East Haddam, CT was continued for the period January through December 2009 in compliance with the Connecticut Yankee Off-Site Dose Calculation Manual (ODCM).

No changes were made to the ODCM during 2009. 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 eight locations in the vicinity of the ISFSI and one control location 2.8 miles 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 over the baseline measurements that were collected in 2003. The results of the monitoring performed in 2009 also show that operating the Haddam Neck ISFSI results in only a small fraction of the 40 CFR Part 190 direct radiation dose limit of 25 mrem/year to members of the public.

Page 2 of 27

TABLE OF CONTENTS Section Title Page

1.0 INTRODUCTION

.............................................................................. 6 2.0 GENERAL ISFSI AND SITE INFORMATION ................................. 7 3.0 PROGRAM DESIGN ........................................................................ 7 3.1 M ONITORING ZONES .................................................................................... 7 3.2 PATHWAYS MONITORED .............................................................................. 8

3.3 DESCRIPTION

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

SUMMARY

TABLES ............................. 12 5.0 ANALYSIS OF ENVIRONMENTAL RESULTS ............................ ... 26 5.1 SAMPLING PROGRAM DEVIATIONS ............................................................... 26 5.2 DIRECT RADIATION PATHWAY ..................................................................... 26 6.0 LAND USE CENSUS ..................................................................... 27

7.0 REFERENCES

.................................................................. 27 Page 3 of 27

LIST OF TABLES Table Title Paqe 3.1 Radiological Environmental Monitoring Program ........................... 9 3.2 Radiological Environmental Monitoring Locations (TLD) ................ 10 4.1 TLD Measurements by Quarter .................................................... 13 4.2 Exposure Rates from TLD Measurements ................................... 14 4.3 TLD Data Sum m ary ...................................................................... 15 4.4 Direct Dose from ISFSI Operations ............................................... 16 Page 4 of 27

LIST OF FIGURES Figure Title Paqe 3.1 Radiological Environmental Monitoring Locations ...................... 11 4.1 Exposure Rate Trend at CY-1 -IF .......................................... 17 4.2 Exposure Rate Trend at CY-6-IF .......................................... 18 4.3 Exposure Rate Trend at CY-48-IF ....................... 19 4.4 Exposure Rate Trend at CY-52-IF ......................................... 20 4.5 Exposure Rate Trend at CY-53-IF ........................................ 21 4.6 Exposure Rate Trend at CY-54-IF ..................... ................. 22 4.7 Exposure Rate Trend at CY-55-IF ........................................ 23 4.8 Exposure Rate Trend at CY-56-IF ........................................ 24 4.9 Exposure Rate Trend at Control Location CY-10-IFC ................. 25 Page 5 of 27

1.0 INTRODUCTION

This report summarizes the findings of the Radiological Environmental Monitoring Program (REMP) conducted by Connecticut Yankee in the vicinity of the Haddam Neck Independent Spent Fuel Storage Installation. It is submitted annually in compliance with Section F, 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 Connecticut Yankee site and its environs.

Section 3: Provides a description of the overall REMP design. This section includes a summary of the ODCM requirements for REMP sampling, tables listing TLD monitoring locations with compass sectors and distances from the ISFSI Pad, 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: Provides the status of the Land Use Census.

Section 7: References Page 6 of 27

2.0 GENERAL ISFSI AND SITE INFORMATION The Haddam Neck ISFSI site is located in the town of East Haddam, Middlesex County, Connecticut, at a point 22 miles south-southeast of Hartford, Connecticut; 25 miles northeast of New Haven, Connecticut; and 16 miles north of Long Island Sound. The site is situated on the east bank of the Connecticut River at an area known as Haddam Neck. The elevation of the site property varies from 10 to 300 feet above sea level, with the area occupied by the ISFSI Pad ranging between 45 and 50 feet above sea level.

The former plant was designed as a single unit pressurized water reactor which sustained its initial chain reaction in July 1967, with commercial operation beginning in January 1968 and a gross power output of 590 Mw (e). After 28 years of operation, the Connecticut Yankee Board of Directors voted in 1996 to permanently close and decommission the power plant. Following two years of planning and preparation, actual decommissioning began in 1998 and was completed in 2006. This site now consists of the Independent Spent Fuel Storage Installation where the fuel from the former plant reactor is stored.

The Radiological Environmental Monitoring Program (REMP) for the ISFSI began pre-operational direct radiation measurements in 2003 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 Haddam Neck 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 (Reference 3).

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 Figure 3.1 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 Page 7 of 27

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.

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 the Monitoring Program 3.3.1 Direct Radiation Direct gamma radiation exposure was continuously monitored during 2009 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 Insulation (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. Two Dibble Creek Sediment samples, two ISFSI Outfall soil samples and two ISFSI Runoff water samples were collected during this period. The results of these samples are available for review at the site.

Page 8 of 27

Table 3.1 Radiological Environmental Monitoring Program Exposure Collection Analysis Pathway Pathway Number of Routine and/or Numbler of Ruine Collection Analysis Analysis Sample Sample Sampling Frequency Type Frequency Media Locations Mode Direct Total Locations: 9 Continuous Quarterly Gamma Each TLD Radiation (8 around dose (TLD) perimeter of the site and 1 offsite control location)

Page 9 of 27

Table 3.2 Radiological Environmental Monitoring Locations (TLD)

Distance Station Direction Station Description Zone* From ISFSI Code From ISFSI (miles)

CY-10-IFC Hurd Park Road (O)* 2 2.8 NNW CY-1-IF Mouth of Discharge Canal (l)** 1 0.5 SSE CY-6-1F Substation (I)** 0.6 NW CY-48-IF Near Historical Met Tower Shack (I)** 1 0.4 WSW CY-52-IF Schmidt Cemetery (I)** 1 0.5 NNE CY-53-IF ISFSI Haul Route (I)** 1 0.2 SSW Rt 149 Near Mouth of Salmon River 1 1.0 ESE CY-54-IF CY-55-IF High Voltage Tower- NW of Pad (I)** 1 0.4 NW-CY-56-IF Near Historical Burrow Pit (I)** 1 0.2 E

  • 2 = Control TLD; 1 = Indicator TLD
    • I = Inner Ring TLD; 0 = Outer Ring TLD Page 10 of 27

Figure 3.1 Environmental Monitoi Page 11 of 27

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 12 of 27

Table 4.1 TLD Measurements by Quarter (mR)

Station ID Direction 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr CY-1-IF SSE 23 20 20 26 CY-6-1F NW 23 20 20 27 CY-48-IF WSW 23 20 21 24 CY-52-IF NNE 25 25 20 25 CY-53-IF SSW 26 24 19 26 CY-54-IF ESE 25 22 21 27 CY-55-IF NW 24 26 24 24 CY-56-IF E 26 26 24 25 CY-10-IFC Control 24 22 23 26 CY-10-IFCa Control Backup 24 25 23 28 Page 13 of 27

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

Station ID Direction 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Ave CY-1-IF SSE 6.6 5.2 4.4 4.6 5.2 CY-6-IF NW 6.6 5.2 4.4 5.1 5.3 CY-48-IF WSW 6.6 5.2 4.8 3.7 5.1 CY-52-IF NNE 7.6 7.5 4.4 4.2 5.9 CY-53-IF SSW 8.1 7.0 3.9 4.6 5.9 CY-54-IF ESE 7.6 6.1 4.8 5.1 5.9 CY-55-IF NW 7.1 7.9 6.2 3.7 6.3 CY-56-IF E 8.1 7.9 6.2 4.2 6.6 CY-10-IFC Control 7.1 6.8 5.8 5.1 6.2 Page 14 of 27

Table 4.3 TLD Data Summary (pR per hour)

Indicator TLDs Control TLDs Station With Highest Mean Mean Mean Station # Mean (Range) (Range) (Range)

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

5.8 6.2 CY-56-IF 6.6 (3.7-8.1) (5.1 -7.1) (4.2-8.1)

(32) (8) (4)

  • Each "measurement" is based on quarterly readings Page 15 of 27

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 CY-1-IF 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.00 CY-6-IF 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.00 CY-48-IF 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.00 CY-52-IF 1.0 0.02 1.5 0.14 0.0 0.00 0.0 0.00 0.16 CY-53-IF 2.0 0.05 0.5 0.05 0.0 0.00 0.0 0.00 0.09 CY-54-IF 1.0 0.02 0.0 0.00 0.0 0.00 0.0 0.00 0.02 CY-55-IF 0.0 0.00 2.5 0.23 1.0 0.09 0.0 0.00 0.32 CY-56-IF 2.0 0.05 2.5 0.23 1.0 0.09 0.0 0.00 0.37 Max Dose => 0.4 Notes:

1. Doses based on a 50 hour5.787037e-4 days <br />0.0139 hours <br />8.267196e-5 weeks <br />1.9025e-5 months <br /> occupancy in both of the first and fourth quarters and a 200 hour0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-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 16 of 27

Figure 4.1 Exposure Rate Trend at CY-1 -IF V\

790H=

5.0004OO w-~VE V 4AO1400 3910"M 2AMILs$4 am3 Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level CY-1-IF-001 06130/2003 5.5E+000 pR/h t 7.60E-001 2.5E+000 CY-1 -IF-002 09/30/2003 5.9E+000 hR/h t

  • 5.60E-001 2.5E+000 CY-1 -IF-003 12/31/2003 5.8E+000 pR/h t 3.OOE-001 2.5E+000 CY-1 -IF-004 03/31/2004 5.7E+000 ijR/h t
  • 4.80E-001 2.5E+000 CY-1-IF-005 06/30/2004 5.7E+000 ijR/h t
  • 8.20E-001 2.5E+000 CY-1 -IF-006 09/30/2004 6.OE+000 pR/h t
  • 8.80E-001 2.5E+000 CY-1 -IF-007 12/31/2004 5.3E+000 pR/h t
  • 3.40E-001 2.5E+000 CY-1-IF-008 03/31/2005 5.6E+000 pR/h t
  • 5,20E-001 2.5E+000 CY-1-IF-010 09/30/2005 6.3E+000 pR/h t
  • 7.40E-001 2.5E+000 CY-1 -IF-011 12/31/2005 6.4E+000 pRJ/h t
  • 7.OOE-001 2.5E+000 CY-1-IF-012 03/31/2006 5.4E+000 pR/h t
  • 6.60E-001 2.5E+000 CY-1-IF-013 06/30/2006 7.OE+000 pR/h t
  • 9.80E-001 2.5E+000 CY-1-IF-014 09/30/2006 5.3E+OOO pR/h t
  • 6.80E-001 2.5E+000 CY-1-IF-015 12/31/2006 6.IE+000 pR/h t
  • 5.OOE-001 2.5E+000 CY-l-IF-016 03/31/2007 6.1E+000 pR/h t
  • 6.OOE-001 2.5E+000 CY-l-IF-017 06/30/2007 6.8E+000 pR/h t
  • 6.80E-001 2.5E+000 CY-l-IF-018 09130/2007 6.4E+000 pR/h t
  • 6.40E-001 2.5E+000 CY-1-IF-019 12/31/2007 6.5E+000 pR/h t
  • 6.60E-001 2.5E+000 CY-1 -IF-020 03/31/2008 6.5E+000 pR/h t
  • 6.60E-001 2.5E+000 CY-1 -IF-021 06/30/2008 5.1 E+000 pR/h t
  • 5.OOE-001 2.5E+000 CY-1 -IF-022 09/30/2008 6.2E+000 pR/h t
  • 6.20E-001 2.5E+000 CY-1 -IF-023 12/31/2008 4.4E+000 pR/h t
  • 4.40E-001 2.5E+000 CY-1-IF-024 03/31/2009 6.6E+000 pR/h t
  • 6.OOE-001 2.5E+000 CY-1-IF-025 06/30/2009 5.2E+000 pJR/h t
  • 6.OOE-001 2.5E+000 CY-1 -IF-026 09/30/2009 4.4E+000 pR/h t
  • 4.OOE-001 2.5E+000 CY-1 -IF-027 12/31/2009 4.6E+000 pR/h t
  • 4.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 17 of 27

Figure 4.2 Exposure Rate Trend at CY-6-IF A

4.003+005 GM3 Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level CY-6-IF-001 06/30/2003 6.1E+000 pR/h t

  • 6.20E-001 2.5E+000 CY-6-IF-002 09/30/2003 6,5E+000 pR/h t
  • 5.OOE-001 2.5E+000 CY-6-IF-003 12/31/2003 6.E1+000 pR/h t
  • 4.00E-001 2.5E+000 CY-6-IF-004 03/31/2004 6.2E+000 pR/h t
  • 6.60E-001 2.5E+000 CY-6-IF-005 06/30/2004 6.IE+000 pR/h t
  • 1.06E+000 2.5E+000 CY-6-IF-006 09/30/2004 5.6E+000 pR/h t
  • 4.80E-001 2.5E+000 CY-6-IF-007 12/31/2004 5.8E+000 pR/h t
  • 3.00E-001 2.5E+000 CY-6-IF-008 03/31/2005 5.5E+000 pR/h t
  • 5.20E-001 2.5E+000 CY-6-IF-009 06/30/2005 5.8E+000 pR/h t
  • 5.60E-001 2.5E+000 CY-6-IF-010 09/30/2005 6.5E+000 pR/h t
  • 8.80E-001 2.5E+000 CY-6-IF-01 1 12/31/2005 6.9E+000 pR/h t
  • 9.00E-001 2.5E+000 CY-6-IF-012 03/31/2006 6.2E+000 pR/h t
  • 4.20E-001 2.5E+000 CY-6-IF-013 06/30/2006 6.5E+000 pR/h t
  • 5.60E-001 2.5E+000 CY-6-IF-014 09/30/2006 5.6E+000 pR/h t
  • 5.60E-001 2.5E+000 CY-6-IF-01 5 12131/2006 6.5E+000 pR/h t
  • 6.OOE-001 2.5E+000 CY-6-IF-016 03/31/2007 7.6E+000 pR/h t
  • 7.60E-001 2.5E+000 CY-6-IF-01 7 06/30/2007 6.BE+gO0 MR/h t
  • 6.80E-001 2.5E+000 CY-6-IF-018 09/30/2007 6.9E+000 MR/h t
  • 6M8E-001 2.5E+000 CY-6-IF-019 12/31/2007 6.5E+000 MR/h t
  • 6.60E-001 2.5E+000 CY-6-IF-020 03/31/2008 7.5E+000 pR/h t
  • 7.60E-001 2.5E+000 CY-6-IF-021 06/30/2008 5.1 E+000 MR/h t
  • 5.00E-001 2.5E+000 CY-6-IF-022 09/30/2008 4.5E+000 pR/h t
  • 4.40E-001 2.5E+000 CY-6-IF-023 12/31/2008 5.OE+000 MR/h t
  • 5.OOE-001 2.5E+000 CY-6-IF-024 03/31/2009 6.6E+000 pR/h t
  • 6.00E-001 2.5E+000 CY-6-IF-025 06/30/2009 5.2E+000 JR/h t
  • 6.OOE-001 2.5E+000 CY-6-IF-026 09/30/2009 4.4E+000 MR/h t
  • 4.OOE-001 2.5E+000 CY-6-IF-027 12131/2009 5.1E+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 18 of 27

Figure 4.3 Exposure Rate Trend at CY-48-IF Indicator L- C-48-IF RWP TLD [Exposure Rate]

7&GE+O SAoe+Uoo 7MOUDO I- Result -- Discrdmination LevelI Sample Name Date Collected Result 2 Sigma Error Discrimination Level CY-48-IF-001 06/3012003 5.7E+O00 JR/h 1"t 5.40E-001 2.5E+000 CY-48-1F-O02 0913012003 5.8E+O00 iiRlh t'

  • 4.60E-001 2.5E+000 CY-48-1F-003 12/3112003 6.IE+000 JR/h t
  • 4.20E-001 2.5E+000 CY-48-1F-O04 0313112004 5.5E+O00 pR/h t
  • 1 .00E+000 2.5E+000 CY-48-IF-O05 0613012004 5.7E+000 MR/h t"
  • 9.60E-001 2.5E+000 CY-48-1F-006 09/30/2004 5.6E+000 JR/h t" 5.20E-001 2.5E+000 CY-48-IF-007 12/31/2004 6.5E+000 pR/h t" 7.20E-001 2.5E+000 CY-48-1F-010 0913012005 7.2E+000 MR/h t"
  • 7.80E-001 2.5E+000 CY-48-1F-011 12/3112005 6.7E+O00 pR/h t" 9.40E-001 2.5E+000 CY-48-1F-012 0313112006 5.2E+000 pR/h 1"* 1 .00E+O00 2.5E+000 CY-48-iF-013 06/30/2006 5.7E+000 MR/h t"
  • 6.00E-O01 2.5E+000 CY-48-1F-014 09/30/2006 5.1E+000 pR/h t" 5.20E-001 2.5E+000 CY-48-1F-015 1 213112006 4.8E+000 IJR/h t" 4.20E-001 2.5E+000 CY-48-1F-016 03/3112007 5.7E+000 pR/h t
  • 5.60E-001 2.5E+000 CY-48-1F-017 06/30/2007 5.7E+000 MR/h t" 5.80E-001 2.5E+000 CY-48-1F-018 09/3012007 6,9E+000 1jR/h 1" 6.80E-001 2.5E+000 CY-48-IF-019 12/3112007 6.1E+000 MR/h t
  • 6.00E-001 2.5E+000 CY-48-1F-020 03/3112008 6.5E+O00 pR/h t *6.60E-001 2.5E+000 CY-48-IF-021 06/3012008 5.5E+000 pR/h t
  • 5.60E-001 2.5E+000 CY-48-IF-022 09/3012008 6.2E+O000 pR/h t
  • 6.20E-001 2.5E+000 CY-48-1F-023 12/3112008 4.4E+000 pR/h t
  • 4.40E-001 2.5E+000 CY-48-1F-024 0313112009 6.6E+000 MR/h t
  • 6.00E-001 2.5E+000 CY-48-1F-025 0613012009 5.2E+000 MJR/h 1't 6,00E-001 2.5E+000 CY-48-1F-026 09/30/2009 4.8E+000 MR/h t
  • 4.00E-001 2.5E+000 CY-48-1F-027 1213112009 3.7E+000 pR/h t *4,00E-001 2,5E+000 Results marked with
  • are greater than 2 Sigma Error.

Results marked with t"are greater than the Discrimination Level Paae 19 of 27

Figure 4.4 Exposure Rate Trend at CY-52-IF 6.0-M.

Cf44K3 5GO aw ~ ISM 53 sw Result - Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level CY-52-IF-001 06130/2003 6.4E+000 JR/h t

  • 9.OOE-001 2.5E+000 CY-52-IF-002 09130/2003 6.5E+000 JR/h t
  • 4.60E-001 2.5E+000 CY-52-IF-003 12/31/2003 6.5E+*00 pR/h t
  • 4.60E-001 2.5E+000 CY-52-IF-004 03/31/2004 5.8E+000 pR/h t * &.20E-001 2.5E+000 CY-52-IF-005 06130/2004 6.6E+000 jR/h t
  • 8.80E-001 2.5E+000 CY-52-IF-006 09/30/2004 6.IE+000 pR/h t
  • 5,20E-001 2.5E+000 CY-52-IF-007 12/31/2004 6.5E+000 JR/h t
  • 7.20E-001 2.5E+000 CY-52-IF-008 03/31/2005 5.6E+000 PR/h t
  • 5.OOE-001 2.5E+000 CY-52-IF-009 06/30/2005 6.2E+000 JR/h t
  • 4.60E-001 2.5E+000 CY-52-IF-010 09/30/2005 7.2E+000 JR/h t
  • 8.80E-001 2.5E+000 CY-52-I F-01l 12/31/2005 6.6E+000 JR/h t
  • 7.60E-00 1 2.5E+000 CY-52-IF-012 0313112006 5.9E+000 JR/h t
  • 3.80E-001 2.5E+000 CY-52-IF-013 06/30/2006 6.6E+000 pR/h t
  • 1.02E+000 2.5E+000 CY-52-IF-014 09/3012006 6.4E+000 pR/h t
  • 1.24E+000 2.5E+000 CY-52-IF-015 12/31/2006 6.3E+000 pR/h t
  • 6.80E-001 2.5E+000 CY-52-IF-016 03/31/2007 7.6E+000 pR/h t
  • 7.60E-001 2.5E+000 CY-52-IF-017 06/30/2007 7.3E+000 pR/h t
  • 7.20E-001 2.5E+000 CY-52-IF-018 09/30/2007 6.9E+000 JR/h t
  • 6.80E-001 2.5E+000 CY-52-IF-019 12/31/2007 6.9E+000 jR/h t
  • 7.OOE-001 2.5E+000 CY-52-IF-020 03/31/2008 7.OE+000 JR/h t
  • 7.OOE-001 2.5E+000 CY-52-IF-021 06/30/2008 5.9E+000 jR/h t
  • 6.00E-001 2.5E+000 CY-52-IF-022 09/30/2008 5.3E+000 pR/h t
  • 5.40E-001 2.5E+000 CY-52-IF-023 12/31/2008 5.OE+000 pR/h t
  • 5.OOE-001 2.5E+000 CY-52-IF-024 03/31/2009 7.6E+000 pR/h t
  • 8.OOE-001 2.5E+000 CY-52-IF-025 06/30/2009 7.5E+000 pR/h t
  • 8.OOE-001 2.5E+000 CY-52-IF-026 09/30/2009 4.4E+000 pR/h t
  • 4.OOE-001 2.5E+000 CY-52-IF-027 12/31/2009 4.2E+000 pR/h t
  • 4.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 27

Figure 4.5 Exposure Rate Trend at CY-53-IF 1Do(1 5&l*+CW 6flAS.M A4it4m 2AID"MO 0400+00~

60M Result Discrimination LevelI Sample Name Date Collected Result 2 Sigma Error Discrimination Level CY-53-IF-001 06/30/2003 6.6E+000 MR/h t

  • 6,60E-001 2.5E+000 CY-53-IF-002 09/30/2003 7.1 E+000 MR/h t
  • 4.60E-001 2.5E+000 CY-53-IF-003 12/31/2003 6.BE+000 pR/h t
  • 4.OOE-001 2.5E+000 CY-53-IF-004 03/31/2004 6.6E+000 pR/h t
  • 5.20E-001 2.5E+000 CY-53-IF-005 06/30/2004 7.2E+000 MRih t
  • 1.OOE+000 2.5E+000 CY-53-IF-006 09/30/2004 6.7E+000 MR/h t
  • 6.60E-001 2.5E+000 CY-53-IF-007 12/31/2004 7.5E+000 MR/h t
  • 3.60E-001 2.5E+000 CY-53-IF-008 03/31/2005 6.2E+000 MR/h t
  • 7.20E-001 2.5E+000 CY-53-IF-009 06/30/2005 7.1 E+000 pR/h t
  • 1.08E+000 2.5E+000 CY-53-IF-010 09/30/2005 7.5E+000 MR/h t
  • 8.20E-001 2.5E+000 CY-53-IF-01 1 12131/2005 7.7E+000 MR/h t
  • 1.04E+000 2.5E+000 CY-53-IF-012 03/31/2006 6.7E+000 MR/h t
  • 4.20E-M0 2.5E+000 CY-53-IF-013 06/30/2006 6.1E+000 MR/h t
  • 6.OOE-001 2.5E+000 CY-53-IF-014 09130/2006 7.5E+000 MR/h t
  • 8.60E-001 2.5E+000 CY-53-IF-015 12/31/2006 6.9E+000 MR/h t
  • 5.80E-001 2.5E+000 CY-53-IF-016 03/31/2007 6.8E+000 MR/h t
  • 6.80E-001 2.5E+000 CY-53-IF-017 06/30/2007 7.8E+000 MR/h t
  • 7.80E-001 2.5E+000 CY-53-IF-018 09/30/2007 7.8E+000 MR/h t
  • 7.80E-001 2.5E+000 CY-53-IF-019 12/31/2007 8.2E+000 MR/h t * &.20E-001 2.5E+000 CY-53-IF-020 03/31/2008 8.OE+000 MR/h t
  • 8.OOE-001 2,5E+000 CY-53-IF-021 06/30/2008 5.9E+000 MR/h t
  • 6.OOE-001 2.5E+000 CY-534F-.022 09/30/2008 7.4E+000 MR/h t
  • 7.40E-001 2.5E+000 CY-53-IF-023 12/31/2008 6.1 E+000 MR/h t
  • 6.00E-001 2.5E+000 CY-53-IF-024 03/31/2009 8.1 E+000 MR/h t
  • 8.00E-001 2.5E+000 CY-53-IF-025 06/30/2009 7.OE+000 MR/h t
  • 8.OOE-001 2.5E+000 CY-53-IF-026 09/30/2009 3.9E+000 MR/h t
  • 4.OOE-001 2.5E+000 CY-53-IF-027 12/31/2009 4.6E+000 MR/h t
  • 4.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 21 of 27

Figure 4.6 Exposure Rate Trend at CY-54-IF IIdctr LoQcations - CY-4-IF : RMP TLD [Exposure Rate]

\

2m+400M 1ADF-M am 6wE 600

- Result - Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level CY-54-IF-001 06130/2003 7.3E+000 pR/h t 7.40E-001 2.5E+000 CY-54-IF-002 09/30/2003 7.7E+000 pR/hf

  • 6.80E-001 2.5E+000 CY-54-IF-003 12/31/2003 7.5E+000 jR/hf
  • 5.20E-001 2.5E+000 CY-54-IF-004 03/31/2004 7.2E+000 pR/h t 4.60E-001 2.5E+000 CY-54-IF-005 06/30/2004 7.OE+000 pR/h t 9.40E-001 2.5E+000 CY-54-IF-006 09/30/2004 7.9E+000 pR/h1
  • 1.40E+000 2.5E+000 CY-54-IF-007 12/31/2004 8.1E+000 jR/h t 5.OOE-001 2.5E+000 CY-54-IF-008 03/31/2005 7.2E+000 jR/h t 1.12E+000 2.5E+000 CY-54-IF-010 09/30/2005 7.OE+000 pR/hf
  • 1.02E+000 2.5E+000 CY-54-IF-01 1 12/31/2005 6.8E+000 JpRh
  • 8.OOE-001 2,5E+000 CY-54-IF-012 03/31/2006 6.2E+000 JR/h"
  • 4.40E-001 2.5E+000 CY-54-IF-013 06/30/2006 6.8E+000 pR/h t 7.60E-001 2.5E+000 CY-54-IF-014 09/30/2006 6.7E+000 JR/h t
  • 7.60E-001 2.5E+000 CY-54-IF-01 5 12/31/2006 6.6E+000 pR/h t
  • 5.40E-001 2.5E+000 CY-54-IF-016 03/31/2007 6.8E+000 pR/h t 6.80E-001 2.5E+000 CY-54-IF-017 06/30/2007 6.2E+000 jR/h t
  • 6.20E-001 2.5E+000 CY-54-IF-018 09/30/2007 7.3E+000 MR/h t 7.40E-001 2.5E+000 CY-54-IF-019 12/31/2007 7.4E+000 MR/h t
  • 7.40E-001 2.5E+000 CY-54-IF-020 03131/2008 7.5E+000 MR/h t 7.60E-001 2.5E+000 CY-54-IF-021 06/30/2008 6.3E+000 MR/h t 6.40E-001 2.5E+000 CY-54-IF-022 09/30/2008 7.OE+000 MR/h t
  • 7.OOE-001 2.5E+000 CY-54-IF-023 12/31/2008 5.5E+000 MR/h t 5.60E-001 2.5E+000 CY-54-IF-024 03/31/2009 7.6E+000 jR/h t 8.OOE-001 2.5E+000 CY-54-IF-025 06/30/2009 6.1E+000 MR/h t 6.OOE-001 2.5E+000 CY-54-IF-026 09130/2009 4.8E+000 MR/h t 4.OOE-001 2.5E+000 CY-54-IF-027 12/31/2009 5.1E+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 22 of 27

Figure 4.7 Exposure Rate Trend at CY-55-IF IIndicator Lctos- CY-5-IF : REMP TLD~ (xoure Rate]

690"MeE omsoM Go &W ISu 6"'"0 Ds imi e

-Result - Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level CY-55-IF-001 06/30/2003 7.OE+000 pR/h t

  • 6.60E-001 2.5E+000 CY-55-IF-002 09/30/2003 7.2E+000 hR/h t
  • 4.40E-001 2.5E+000 CY-55-IF-003 12/31/2003 6.8E+000 ljR/h t
  • 5.40E-001 2.5E+000 CY-55-IF-004 03/31/2004 6.8E+000 IJR/h t
  • 1.04E+000 2.5E+000 CY-55-IF-005 06/30/2004 7.OE+000 pR/h t
  • 1.10E+000 2.5E+000 CY-55-IF-006 09/30/2004 7.0E+000 pR/h t
  • 1.26E+000 2,5E+000 CY-55-IF-007 12/31/2004 7.2E+000 pR/h t
  • 4.40E-001 2.5E+000 CY-55-IF-008 03/31/2005 6.OE+000 pR/h t
  • 4.80E-001 2.5E+000 CY-55-IF-009 06/30/2005 7.9E+000 pR/h t
  • 1.60E+000 2.5E+000 CY-55-IF-010 09/30/2005 7.9E+000 pR/h t
  • 1.52E+000 2.5E+000 CY-55-IF-01 1 12/31/2005 7.5E+000 pR/h t
  • 9.00E-001 2.5E+000 CY-55-IF-01 2 03/31/2006 6.7E+000 pR/h t
  • 6.40E-001 2.5E+000 CY-55-l F-0l13 06/30/2006 7.5E+000 pR/h t
  • 7.60E-001 2.5E+000 CY-55-IF-014 09/30/2006 6.8E+000 pR/h t
  • 7.80E-001 2.5E+000 CY-55-IF-01 5 12/31/2006 7.OE+000 pR/h t
  • 5.80E-001 2.5E+000 CY-55-IF-016 03/31/2007 t.IE+001 pR/h t
  • 1.08E+000 2.5E+000 CY-55-IF-01 7 06/30/2007 7.3E+000 pR/h t
  • 7.20E-001 2.5E+000 CY-55-IF-018 09/30/2007 7.8E+000 pR/h t
  • 7.80E-001 2.5E+000 CY-55-IF-019 12/31/2007 7.4E+000 pR/h t
  • 7.40E-001 2.5E+000 CY-55-IF-020 03/31/2008 7.5E+000 pR/h t
  • 7.60E-001 2.5E+000 CY-55-IF-021 06/30/2008 7.2E+000 pR/h t
  • 7.20E-001 2.5E+e000 CY-55-IF-022 09/30/2008 7.4E+000 pR/h t
  • 7.40E-001 2.5E+000 CY-55-IF-023 12/31/2008 6.1E+000 pR/h t
  • 6.OOE-001 2.5E+000 CY-55-IF-024 03/31/2009 7.1 E+000 pR/h t
  • 8.OOE-001 2.5E+000 CY-55-IF-025 06/30/2009 7.9E+000 pR/h t
  • 8.00E-001 2.5E+000 CY-55-IF-026 09/30/2009 6.2E+000 pR/h t
  • 6.OOE-001 2.5E+000 CY-55-IF-027 12/31/2009 3.7E+000 pR/h t
  • 4.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 23 of 27

Figure 4.8 Exposure Rate Trend at CY-56-IF Indicator - Y-56-IF, RDEP TW P

,--is [Exposure Rate]

4005-1F-00021 3E R 100E 25

-Result Discrimination Level Sample Name Date Collected Result 2 Sigma Error Discrimination Level CY-56-IF-001 06130/2003 6.8E+000 pR/h t

  • 1.OOE-001 2.5E+000 CY-56-IF-002 09/30/2003 7.OE+000 hR/h t
  • 4.80E-001 2.5E+000 CY-56-IF-003 12/31/2003 7.OE+00O pR/h t
  • 8.OOE-001 2.5E+000 CY-56-IF-004 03/31/2004 6.9E+000 pR/h t
  • 6.80E-001 2.5E+000 CY-56-lF-005 06/30/2004 6.8E+000 pR/h t
  • 1.OOE+000 2.5E+000 CY-56-IF-006 09/30/2004 7.2E+000 pR/h t
  • 2.68E+000 2.5E+000 CY-56-IF-007 12/31/2004 7.OE+00O pR/h t
  • 3.40E-001 2.5E+000 CY-56-IF-008 03/31/2005 6.OE+000 pR/h t
  • 4.40E-001 2.5E+000 CY-56-IF-009 06/30/2005 7.E+000 pR/h t
  • 5.80E-001 2.5E+000 CY-56-IF-010 09/30/2005 7.1E+000 pR/h t
  • 1.1OE+000 2.5E+000 CY-56-IF-01 1 12131/2005 7.OE+OO0 pR/h t
  • 9.OOE-001 2.5E+000 CY-56-IF-012 03131/2006 6.3E+000 pR/h t
  • 6.40E-001 2.5E+000 CY-56-IF-013 06/30/2006 6.8E+000 MR/h t
  • 7.60E-001 2.5E+000 CY-56-IF-014 09/30/2006 6.9E+000 MR/h t
  • 6.60E-001 2.5E+000 CY-56-IF-015 12131/2006 6.9E+000 MR/h t
  • 5.60E-001 2.5E+000 CY-56-1F-016 03/31/2007 6.8E+000 pR/h t
  • 6.80E-001 2.5E+000 CY-56-IF-017 06/30/2007 7.8E+000 MR/h t
  • 7.80E-001 2.5E+000 CY-56-IF-018 09/30/2007 7.8E+000 MR/h t
  • 7.80E-001 2.5E+000 CY-56-IF-019 12/31/2007 7.4E+000 MR/h t
  • 7.40E-001 2.5E+000 CY-56-IF-020 03131/2008 8.OE+O00 MR/h f
  • 8.OOE-001 2.5E+000 CY-56-IF-021 06/30/2008 5.5E+O00 MR/h t
  • 5.60E-001 2.5E+000 CY-56-IF-022 09/30/2008 7.OE+O0O MR/h t *7OOE-001 2.5E+000 CY-56-IF-023 12/31/2008 5.5E+000 MR/h t
  • 5.60E-001 2.5E+000 CY-56-IF-024 03/31/2009 8.IE+000 MR/h t
  • 8.OOE-001 2.5E+000 CY-56-IF-025 06/30/2009 7.9E+000 MR/h tf 8.OOE-001 2.5E+000 CY-56-IF-026 09/30/2009 6.2E+000 MR/h t
  • 6.OOE-001 2.5E+000 CY-56-IF-027 12/31/2009 4.2E+000 MR/h t
  • 4.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 24 of 27

Figure 4.9 Exposure Rate Trend at Control Location CY-56-IF I

/00V M

I - Result - Discrimination Level I Sample Name Date Collected Result 2 Sigma Error Discrimination Level CY-10-IFC-001 06/30/2003 6.5E+000 MR/h t

  • 7.00E-001 2.5E+000 CY-10-IFC-002 09/30/2003 6.7E+000 pMR/h t
  • 6.OOE-001 2.5E+000 CY-10-IFC-003 12/31/2003 7.2E+000 p"R/h t
  • 9.00E-001 2.5E+000 CY-10-IFC-004 03/31/2004 6.3E+000 pR/h t
  • 5.80E-001 2.5E+000 CY-10-IFC-005 06/30/2004 6.4E+000 pR/h t
  • 1.12E+000 2.5E+000 CY-10-IFC-006 09/30/2004 6.2E+000 pR/h t
  • 5.80E-001 2.5E+000 CY-10-IFC-007 12/31/2004 6.4E+000 PR/h t
  • 3.80E-001 2.5E+000 CY-10-IFC-008 03/31/2005 6.0E+000 .MR/ht
  • 6.00E-001 2.5E+000 CY-10-IFC-009 06/30/2005 6.7E+000 R/Ih t
  • 4.60E-001 2.5E+000 CY-10-IFC-010 09/30/2005 6.8E+000 pR/h t
  • 6.60E-001 2.5E+000 CY-10-IFC-011 12/31/2005 7.8E+000 pR/h f
  • 9.00E-001 2.5E+000 CY-10-IFC-012 03/31/2006 6.7E+000 MR/h t
  • 5.40E-001 2.5E+000 CY-10-IFC-013 06/30/2006 7.1E+000 pR/h t
  • 5.60E-001 2.5E+000 CY-10-IFC-014 09/30/2006 6.OE+000 MR/h t
  • 5.80E-001 2.5E+000 CY-10-IFC-015 12/3112006 6.6E+000 pR/h t
  • 7.80E-001 2.5E+000 CY-10-IFC-016 03/31/2007 6.7E+000 MR/h t
  • 6.60E-001 2.5E+000 CY-10-IFC-017 06/30/2007 6.8E+000 MR/ht
  • 6.80E-001 2.5E+000 CY-10-IFC-018 09/30/2007 6.4E+000 IjR/h t
  • 6.40E-001 2.5E+000 CY-10-IFC-019 12/31/2007 7.6E+000 MR/h t
  • 7.60E-001 2.5E+000 CY-10-IFC-020 03/31/2008 8.02+000 MRih f
  • 8.00E-001 2.5E+000 CY-10-IFC-021 06/30/2008 6.8E+000 MR/h t
  • 6.80E-001 2.5E+000 CY-10-IFC-022 09/30/2008 6.4E+000 pJRh t
  • 6.40E-001 2.5E+000 CY-10-4FC-023 12/31/2008 4.7E+000 JR/h t
  • 4.80E-001 2.5E+000 CY- 10-I FC-024 03/31/2009 7.1E+000 MR/h f
  • 8.00-E001 2.5E+000 CY-10-IFC-025 06/30/2009 6.8E+000 pMR/h
  • 6.00E-001 2.5E+000 CY-10-IFC-026 09130/2009 5.8E+000 MR/h t
  • 6.00E-001 2.5E+000 CY-10-IFC-027 12/31/2009 5.1E+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 25 of 27

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 8 indicator locations surrounding the Haddam Neck ISFSI, along with 1 control location (Hurd Park Road) 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 no significant difference between the indicator and control location exposure rates. Figures 4.1 through 4.9 show exposure rate trends of the monitoring locations since 2003. Review of Figures 4.1 through 4.9 shows no significant difference between the pre-operational and operational exposure rates 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 The ODCM specifies that a cumulative dose estimate from direct radiation is required to be determined semi-annually. This 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. The ODCM states that 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 2009 dose estimate assumes a total of 500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> occupancy for the dose calculation; of which 50 hours5.787037e-4 days <br />0.0139 hours <br />8.267196e-5 weeks <br />1.9025e-5 months <br /> are used in both the first and fourth quarters and 200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> are used in Page 26 of 27

both the second and third quarters. The most likely location for exposure to a member of the public from the ISFSI is along the Connecticut or Salmon Rivers for boating and fishing; 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 not along either river but at a location near the center of the site at Station ID number CY-56-IF. The maximum calculated annual dose at that location is 0.4 mrem. This value is only 2 percent of the 25 mrem per year limit. The calculated annual dose to members of the public at the mouth of the Discharge Canal was zero. The calculated annual dose to members of the public at Route 149 near the mouth of the Salmon River was 0.02 mrem.

6.0 LAND USE CENSUS The most recent census remained in effect for 2009; therefore, no changes were made to the monitoring program.

7.0 REFERENCES

1. USNRC Radiological Assessment Branch Technical Position, "An Acceptable Radiological Environmental Monitoring Program," Revision 1, November 1979.
2. Haddam Neck Off-site Dose Calculation Manual, Revision 23.
3. 40 CFR Part 190, "Environmental Radiation Protection Standards for Nuclear Power Operation".

Page 27 of 27

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