ML20135G330
| ML20135G330 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 09/09/1985 |
| From: | Andrews R OMAHA PUBLIC POWER DISTRICT |
| To: | Martin R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| EP-85-334, LIC-85-418, NUDOCS 8509180422 | |
| Download: ML20135G330 (1) | |
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l Omaha Pubilc Power District 1623 Harney Omaha. Nebraska 68102 2247 402/536-4000 bbb )
Septenber 9,1985 EP-85-334 l/
l LIC-85-418 i
SEPl21985 s!
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Mr. Robert D. Martin Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011
Subject:
Written Summary - Notification of Unusual Event - Septenber 9,1985
Dear Mr. Martin:
The Omaha Public Power District's Fort Calhoun Station declared a " Notification of Unusual Event" at 1:35 p.m. on September 8,1985. The initiating condition was a small release of non-radioactive chlorine gas.
This was evaluated as an onsite toxic gas release in accordance with the emergency action level criteria for emergency classification and our implementing procedure EPIP-0SC-1. The Shift Auxiliary Operator - Nuclear was in the process of removing what he be-lieved to be an empty cylinder. However, the isolation valve failed to close the cylinder which did contain chlorine. The operator immediately reestab-lished systen integrity which tenninated the chlorine gas release immediately.
It is estimated that less than 1 cubic foot of chlorine gas escaped. The i n-stantaneous energency condition was fonnally declassified and tenninated at 1:36 p.m. on Septenber 8,1985. At no time during this incident did a release of radioactivity into the environment occur. Notification of this event was made to the U.S.N.R.C., Die State of Nebraska and the State of Iowa. The noti-fication occurred af ter tennination of the event because of the short emergency duration. The notification provided information on the emergency cause and con-dition, a recommendation that no action was required and also fonnally tennin-ated the emergency status.
This letter provides the required 24-hour written summary of this event.
Sincerely, 8509180422 850909 PDR ADOCK 05000285 S
PDR R. L. Andrews Division Manager Nuclear Production RLA/FFF/rh 1
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