ML17083B944

Forwards Technical Evaluation Rept of 1984 Meteorological Data from Diablo Canyon Nuclear Power Plant, Final Rept. Data Set Indicates That Data Appear to Be Climatically Representative & Reliable for Providing Dose Calculations

ML17083B944
Person / Time
Site:	Diablo Canyon
Issue date:	09/14/1987
From:	Trammell C Office of Nuclear Reactor Regulation
To:	Shiffer J PACIFIC GAS & ELECTRIC CO.
Shared Package
ML17083B945	List: ML17083B944
References
IEIN-84-91, NUDOCS 8709160349
Download: ML17083B944 (8)

Text

'ocket Nos.:

50-275 and 50-323 Mr. J.

D. Shiffer, Vice President Nuclear Power Generation c/o Nuclear Power Generation, Licensing Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106

Dear Mr. Shiffer:

DISTRIBUTION-NRC 8

L PDRs GHolahan JLee CTrammell OGC-Bethesda EJordan JPartlow ACRS (10)

O.D.T. Lynch ISpickler KPrendergast-RV

SUBJECT:

EVALUATION OF 1984 DIABLO CANYON METEOROLOGICAL DATA On December 10,

1984, IE Information Notice No. 84-91 was sent to all nuclear power facility licensees.

This notice outlined some of the problems that have been observed with the meteorological monitoring systems at a number of sites throughout the U.S.

As a follow-up to the IE Notice, the NRC is conducting a review of the meteorological data from a sampling of facilities to determine if the problems identified in the Notice are widespread or isolated occurrences.

The Diablo Canyon site was one of the facilities selected to be reviewed.

The enclosed Technical Evaluation Report (TER) provides an evaluation of the quality of the 1984 meteorological data at the Diablo Canyon site.

This TER was prepared by our contractor, Pacific Northwest Laboratory.

Examination of the 1984 Diablo Canyon data set indicates that the data appear to be climatically representative, of high quality, and reliable for use in providing credible dose calculations and recommendations for protective actions in an emergency situation,, and for doses calculated to assess the impact of routine releases of radioactive material to the atmosphere.

However, the contractor notes that these data may only be applicable to the shoreline environment and should not be applied to the site boundary under certain conditions "(e.g., onshore flow) without the use of additional information.

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A similar comment was made in the Emergency

Response

Facilities appraisal that was conducted during the period June 3-7, 1985 (report dated August 14, 1985).

We therefore request that you respond to this comment within 60 days of your receipt of this letter.

Please contact us should you need any clarification or discussion of this request.

~NH sfgtlef by Charles N. Trammell, Project Manager Project Directorate V

Division of Reactor Projects - III, IV, Y and Special Projects

Enclosures:

TER cc w/enclosure:

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'I Mr. J.

D. Shiffer Pacific Gas and Electric Company Diablo Canyon CC:

Richard F. Locke, Esq.

Pacific Gas 5 Electric Company Post Office Box '7442 San Francisco, California 94120 Janice E. Kerr, Esq.

California Public Utilities Commission 350 McAllister Street San Francisco, California 94102 Ms. Sandra A. Silver 660 Granite Creek Road Santa Cruz, California 95065 Mr. W. C. Gangloff Westinghouse Electric Corporation P. 0.

Box 355 Pittsburgh, Pennsylvania 15230 Managing Editor San Luis Obispo County Telegram Tribune 1321 Johnson Avenue P. 0.

Box 112 San Luis Obispo, California 93406 Mr. Leland M. Gustafson, Manager Federal Relations Pacific Gas and Electric Company 1726 M Street, N.

W.

Washington, DC 20036-4502 Dian M. Grueneich, Esq.

Edwin F. Lowry, Esq.

Grueneich 5 Lowry 380 Hayes Street Suite 4

San Francisco, California 94102 NRC Resident Inspector Diablo Canyon Nuclear Power Plant c/o U.S. Nuclear Regulatory Commission P. 0.

Box 369 Avila Beach, California 93424 Mr. Dick Bl a kenbur g Editor 5 Co-Publisher South County Publishing 'Company P. 0.

Box 460 Arroyo Grande, California 93420 Bruce Norton, Esq.

c/o Richard F. Locke, Esq.

Pacific Gas and Electric Company Post Office Box 7442 San Francisco, California 94120 Dr. R. B. Ferguson Sierra Club - Santa Lucia Chapter Rocky Canyon Star Route Creston, California 93432 Chairman San Luis Obispo County Board of Supervisors Room 220 County Courthouse Annex San Luis Obispo, California 93401 Director Energy Facilities Siting Division Energy Resources Conservation and Development Conmission 1516 9th Street Sacramento, California 95814 Ms. Jacquelyn Wheeler 2455 Leona Street San Luis Obispo, California 93400

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,Pacific Gas 8 Electric Company Diablo Canyon CC:

Ms. Laurie McDermott, Coordinator Consumers Organized for Defense of Environmental Safety 731 Pacific Street, Suite 42 San Luis Obispo, California 93401 Mr. Joseph

0. Ward, Chief Radiological Heal th Branch State Department of Health Services 714 P Street, Office Building 88 Sacramento, California 95814 Ms. Nancy Culver 192 Luneta Street San Luis Obispo, California 93401 President California Public Utilities Commission California State Building 350 McAllister Street San Francisco, California 94102 Regional Administrator, Region V

U.S. Nuclear Regulatory Commission 1450 Maria Lane Suite '210 Walnut Creek; California 94596 Michael M. Strumwasser, Esq.

Special Assistant Attorney General State of California Department of Justice 3580 Wilshire Boulevard, Room 800 Los Angeles, California 90010

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