ML19270G354
| ML19270G354 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 05/30/1979 |
| From: | Warembourg D PUBLIC SERVICE CO. OF COLORADO |
| To: | Gammill W Office of Nuclear Reactor Regulation |
| References | |
| P-79112, NUDOCS 7906060206 | |
| Download: ML19270G354 (2) | |
Text
.
~ TO public senice company ce esende P. O. Box 361, Platteville, CO 80651
_~ _J May 30, 1979 Fort St. Vrain Unit No. 1 P-79112 Director, Office of Nuclear Regulations Attn:
W. P. Cammil, Chief Operating Reactors Safeguards Branch Division of Operating Raactors U. S. Nuclear Regulatory Commission Washington, DC 20555 Docket No. 50-267
Subject:
Base Reactivity Curve Cycle 2 Gentlemen:
Per the requirements of LCO 4.1.8 of the Fort St. Vrain Technical Specifi-cations, I am forwarding the base reactivity for cycle 2.
The calculated base reactivity curve was obtained utilizing the four group GAUCE code. The increase (to nore negative values) in the base reactivity for cycle 2 beyond about 2 x 106 Wd(t) is primarily due to fuel depletion and fission product poison build-up.
The base reactivity curve has been reviewed and approved by our Nuclear Facility Safety Co=mittee in accordance with Technical Specification requiremento.
Very truly yours,
?%wd A
Don Warembourg Manager Nuclear Production Fort St. Vrain Nuclear Generating Station DW:il 2276 276 Attachment D ooa' s Ill 790606010(
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