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)

Text

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