ML20040G334
| ML20040G334 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 02/08/1982 |
| From: | Sargent C COMMONWEALTH EDISON CO. |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20040G335 | List: |
| References | |
| NUDOCS 8202120179 | |
| Download: ML20040G334 (2) | |
Text
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'N Commonwealth Edison
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_ f one nrst N;tiortil PII21 Chec*no, Illinois 7 Address Reply to: Post Office Box 767
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v (j' Chicago. Illinois 60690 February 8, 1982
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/4 Mr. A. Schwencer, Chief Licensing Branch #2 RECEIVED' FEBI119826 I "g Division of Licensing a
U. S. Nuclear Regulatory Commission
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4 Washington, DC 20555
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ISC 7
Subject:
LaSalle County Station Units 1 an Preoperational Fog and Ice Observati Program; NRC Docket Nos. 50-373 and 50-374
Dear Mr. Schwencer:
Enclosed is a summary of the second year of preoperation fog and rime ice observations in the vicinity o f the cooling pond.
This is reported in accordance with the Final Environmental Statement, NUREG 0496; LaSalle County Station Units 1 and 2.
The summary consists of:
(a) Attachment 1, which includes all incidences of fog which restricts visibility to 1/4 mile or less and rime ice observed off of station prnperty; and (b) Attachment 2, which consists of copies of the four quarterly 1981 summaries of fog and rime ice observations.
In summary, there were 11 days out o f 248 observation days where visibility was restricted to less than 1/4 mile.
Addition-ally, there were two observations o f ice build-up occurring o f f to the station property.
With respect to the rime ice observation of December 29, 1981, ice formation was approximately 1/4 inch in thickness.
The formation o f ice on various vertical surfaces was irregular but was in all cases, under one inch thick.
When compared to 1980, 1981 had one more day o f fog where the visibility was restricted to 1/4 mile or less and 1981 had thc first observation of rime ice (December 29, 1981) that occurred of f the station property.
Since fuel still has not been loaded into the reactors, there has not been any significant heat rejected to the pond.
{4jt ool 8202120179 820200 PDR ADOCK 05000373 R
A. Schwencer February 8, 1982 If you have any questions concerning this letter or the attachments, please address them to this office.
Very truly yours, b
C. E. Sa rgen t Nuclear Licensing Administrator 1m Attachments cc:
M.
J. Oestmann - Region III w/att.
NRC Resident Inspector - LSCS w/o att.
3423N