ML19323A419
| ML19323A419 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 04/16/1980 |
| From: | Linder F DAIRYLAND POWER COOPERATIVE |
| To: | |
| References | |
| LAC-6865, NUDOCS 8004210200 | |
| Download: ML19323A419 (2) | |
Text
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D DA/RYLAND COOPERAT/VE eO sox 817
- I A CROSSE WISCOtJSitJ 54601 mom 7884000 April 16, 1980 In reply, please refer to LAC-6865 DOCKET NO. 50-409 Mr. James G.
Keppler Regional Director U.
S. Nuclear Regulatory Commission Directorate of Regulatory Operations Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137
SUBJECT:
DAIRYLAND POWER COOPERATIVE LA CROSSE BOILING WATER REACTOR (LACBWR)
PROVISIONAL OPERATING LICENSE NO. DPR-45 REPORTABLE OCCURRENCE NO. 80-02
Reference:
(1)
LACBWR Technical Specifications, Section 3. 9. 2.a. (3).
(2)
LACBWR Technical Specifications, Section 5. 2.1. 2. (b) 4.
Dear Mr. Keppler:
In accordance with Reference 1, this is to inform you of abnormal degradation discovered in the primary reactor containment during periodic Type C surveillance leakage rate testing while in a shut-down condition.
As a result of conducting periodic Type C leak tests on Containment Building ventilation dampers, the leak flow rates determined from the exhaust dampers exceeded the permissible leak flow rates _as defined in Technical Specifications (Reference 2).
The test leakage rate was determined to be 40.79 SCFH.
The Acceptance Criteria is 0.375 SCFH.*
Supplemental tests have verified zero leakage across the containment boundary (outer valvd).
The tests were performed on April 15, 1980.
Prompt notification of test results to Mr. Bill Little of the U. S. Nuclear Regulatory Commission, Region III, was accomplished at 1358 on April 16, 1980, by J.
D. Parkyn, LACBWR Assistant Superintendent.
- Shall not exceed 1% of leakage rate L where L is 37.5 SCFH.
po po
.1 -
8004210 1 0 0
Mr. James G. Keppler, Reg. Dir.
LAC-6865 U.
S. Nuclear Regulatory Commission April 16, 1980 Repairs to the exhaust dampers are being accomplished and retests will be performed.
If there are any questions concerning this report, please
-contact us.
Very truly yours, DAIRYLAND POWER COOPERATIVE k La c ; t.$ fi e;cli u /si/
Frank Linder, General Manager FL:JDP:af cc:
Director, Office of Management Information and (3)
Program Control U.
S. Nuclear Regulatory Commission Washington, D. C.
20555 B
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