ML19211A898

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Submits Nonroutine Radiological Environ Operating Rept Re Analysis of Oyster Samples for gamma-omitting Radionuclides. Samples Showed Very Small Fractions of Allowable Doses
ML19211A898
Person / Time
Site: Calvert Cliffs  Constellation icon.png
Issue date: 12/18/1979
From: Stout J
BALTIMORE GAS & ELECTRIC CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 7912210276
Download: ML19211A898 (1)


Text

'

. BALTIMORE

'l GAS AND A

ELECTRIC CHARLES CENTER . P.O. BOX 1475 BALTIMORE. MARYLAND 21203 ELecTnic ENGtNEEn!NG osunwrNr December 18, 1979 Fx. Boyce H. Grier, Director Office of Inspection and Enforcement Region 1 USNRC 631 Park Avenue King of Prussia, PA. 19406

Dear Mr. Grier:

Subject:

Calvert Cliffs Nuclear Power Plant Units Nos. 1 and 2 License Nos. DPR-53 and 69 Nonroutine Radiological Environmental Operating Report This report is submitted, in duplicate, to comply with the require-ments of Appendix B Environmental Technical Specifications Section 5.6.2.b.

The Oyster samples were collected on October 30, 1979 from the Camp Conoy sampling location and analyzed for garr.a-emitting radionuclides as required. The results of the analyses showed the presence of Ag-110= at 253112 pCi/Kg(vet). The oyster samples collected on the same date from the Kenwood Beach' sampling location (the background location) showed Ag-110m at 5 7 pCi/Kg(vet).

Based on the observed levels of Ag-110m during this sampling period, for an average adult consuming one kilogram of oysters per year the doses to the GI Tract and Whole Body are estimated at~1.5x10-2 mrem / year and~2.2x10-5 mrem / year, respectively. These are very small fractions of the allovable 25 crem/ year (GI Tract) and 25 mrem / year (Whole Body) doses to members of the general public, (h0 CFR Part 190 Environmental Radiation Protection Standards for Nuclear Power Operations) and are therefore considered to be of no consequence to the health and safety of the public.

Very truly yours,

/

/A Y

. W. Stout, Jr. '

/l

'L Chief Environmental En ineer cc: Director 1636.21)1 Office of Nuclear Reactor Regulation Washington, D. C. 20555 (17 copies)

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7 912210 E 76