CY-99-048, Forwards Cyap Rept CY-HP-0031,Rev 0, Bounding Dose Assessment for Offsite Radioactive Matls

From kanterella
Jump to navigation Jump to search
Forwards Cyap Rept CY-HP-0031,Rev 0, Bounding Dose Assessment for Offsite Radioactive Matls
ML20210F505
Person / Time
Site: Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date: 07/29/1999
From: Mellor R
CONNECTICUT YANKEE ATOMIC POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20210F510 List:
References
CY-99-048, NUDOCS 9907300216
Download: ML20210F505 (2)


Text

F l I

l CONNECTICUT YANKEE ATOMIC POWER COMPANY e

HADDAM NECK PLANT 362 INJUN HOLLOW ROAD

  • EAST HAMPToN, CT 06424-3099 July 29,1999 ,

Docket No. 50-213 CY-99-048 I

l U. S. Nuclear Regulatory Commission i Attention: Document Control Desk Washington, DC 20555 Haddam Neck Plant Offsite Dose Assecsment

)

In our recent letter to the NRC', Connecticut Yankee Atomic Power Company (CYAPCO) described the revision to our Offsite Material Recovery Plan and committed to evaluate potential radiation exposures to members of the public from detectable Haddam Neck Plant related radioactive material. Please find enclosed our bounding dose assessment report for ,

this material, "Technica! Support Document CY-HP-0031, Rev. O, Bounding Dose Assessment for Offsite Radioactive Materials".

As oescribed in the enclosed report, the bounding dose assessment uses very conservative assumptions regarding the radiological source term, exposure scenarios, occupancy times, and land use. CYAPCO be!ieves the calculated bounding dose provided in this report l represents the maximum dose that any individual member of the public could have hypothetically received. Based on the conservative assumptions applied in this analysis, we believe that the actual exposbies were well below the doses calculated in this report. Our l staff is continuing to quantify the extent of these conservative assumptions to allow us to j better evaluate the potential exposures at individual properties.

The results of this evaluation clearly confirm that the maximum annual exposure to any member of the public is well below the limits provided in 10CFR20. Given the very conservative nature of this calculation, we believe that this conclusion is reasonable and that the actual doses are substantially less than regulatory limits.

CYAPCO letter from R.A. Mellor to the NRC, "Offsite Material Recovery Plan, 4 Revision 1", dated July 15,1999 ono n n 9907300216 990729 PDR ADOCK 05000213 '(b W PDR i i e

1 l

l CY-99-048/P:g3 2 j If you should have any questions on the above or the attached analysis, please contact Mr. R. Sexton at (860) 267-3947.

Very truly yours, CONNECTICUT YANKEE ATOMIC POWER COMPANY R. A. Mellor Vice President - Operations and Decommissioning cc: H. J. Miller, NRC Region I Administrator T. L. Fredrichs, NRC Project Manager, Haddam Neck Plant R. R. Bellamy, Chief, Decommissioning and Laboratory Branch, NRC Region I E. L. Wilds, Jr., Director, CT DEP Monito:ing and Radiation Division l

l l

1 l

k I