ML20197B076

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Informs That Util Will Update & Submit Rept on Chernobyl Accident by 861126.Update Will Ctr on Graphite Related Concerns,Including Analysis of Worst Case Explosive Gas Mixtures & Comparison of Reactor Kinetics Behavior
ML20197B076
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 10/22/1986
From: Brey H
PUBLIC SERVICE CO. OF COLORADO
To: Berkow H
Office of Nuclear Reactor Regulation
References
P-86602, TAC-63576, NUDOCS 8610270467
Download: ML20197B076 (2)


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2420 W. 26th Avenue, Suite 1000, Denver, Colorado 80211 October 22, 1986 Fort St. Vrain Unit No. 1 P-86602 Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Mr. H. N. Berkow, Director Standardization and Special Projects Directorate Docket No. 50-267

SUBJECT:

Response to Report on Chernobyl Accident

REFERENCE:

1)NRCletter,Heitner to Williams, dated 9/16/86 (G-86502)

2) PSC letter, Brey to Berkow, dated 5/9/86 (P-86358)
3) PSC letter, Brey to Berkow, dated 10/6/86 (P-86574)

Dear Mr. Berkow:

On September 22, 1986, PSC received Reference 1 and the official IAEA translation of the Soviet Report on the Chernobyl Accident. This letter requested that PSC review this report and use it, where appropriate, to update PSC's previous report, "Chernobyl Nuclear Reactor Accident and Its Implications Upon Fort St. Vrain," submitted in Reference 2. In Reference 3, PSC committed to furnish the NRC with the areas to be investigated and a schedule for their completion by October 22, 1986.

8610270467 861022 I PDR ADOCK 05000267 ()04 P PDR g 1

P-86602 Pags 2

- October 22, 1986 PSC will update and submit this report to the NRC by November 26, 1986. This update will center on graphite related concerns resulting from the Chernobyl accident, including an analysis of worst case explosive gas mixtures which are hypothetically assumed to accumulate in the PCRV during depressurized accident conditions, and a comparison of the reactor kinetics behavior of FSV and Chernobyl.

Should you have any questions on this matter, please contact Mr. M.

H. Holmes, at (303) 480-6960.

Very truly yours, 7/, / Bay h GM 7c8M H. L. Brey, Manager Nuclear Licensing and Fuels HLB /RS:jmt l

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