ML19254F479

Nonroutine Radiological Environ Operating Rept.Level of gamma-emitting Radionuclides No Threat to Public Health & Safety

ML19254F479
Person / Time
Site:	Calvert Cliffs
Issue date:	10/22/1979
From:	Stout J BALTIMORE GAS & ELECTRIC CO.
To:
References
NUDOCS 7911090509
Download: ML19254F479 (1)

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SALTIMORE

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GAS AND EL.ECTRIC i CHARLES CENTER . P.O. BOX 1475 BALTIMORE, MARYLAND 21203 Es. scenic Emainsemina osunrunnr October 22, 1979

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Mr. Boyce H. Grier, Director Office of Inspection and Enforcement Rt.gion 1. USNRC 631 Park Avenue King of Prussia, PA. 19h06

Subject:

Calvert Cliffs Nuclear Power Plant Units No. 1 and 2.

License Nos. DPR-53 and 69 Nonroutine Radiological Environ = ental Operating Report.

This report is submitted, in duplicate, to comply with the require-cents of Appendix B Environmental Technical Specifications Section 5.6.2.b.

l The Oyster samples were collected on August 27, 1979 from the Camp Coney sampling location and analyzed for ga==a-emitting radionnelides as required. The results of the analyses showed the presence of Ag-110 c.t 266* h% pCi/Kg(vet). The oyster samples collected on the same date from the Kenwood Beach sa=pling location (the background location) shoved Ag-110m at I kpci/Kg(vet). A review of the available effluent release data indicates that Ag-100 m in oysters is plant related.

Based on the observed levels of Ag-100m during August 1979, for an average adult consuming one kilogram of oysters per year the doses to the GI Tract and Whole Body are estimated at rv 1.6x10-2 mrem / year andiv 2.3x10-5 mrem / year,respectively. These are very small fractions of the allevable 25 mrem / year (GI Tract) and 25 mrem / year (Whole Body) doses to members of "the general public, (k0 CFR Part 190 Environ = ental Radiation Protection Standards for Nuclear Power Operations) and are considered to be of no consequence to the health and safety of the public.

Ve:ry truly yours, J. W. Stout, Jr.

Chief Environmental Engineer cc: Director, Office of Nuclear Reactor Regulation Washington, DC 20555 (17 copies).

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