ML20203M501
| ML20203M501 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 07/24/1986 |
| From: | Andrews R OMAHA PUBLIC POWER DISTRICT |
| To: | Gagliardo J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| Shared Package | |
| ML20203M499 | List: |
| References | |
| LIC-86-350, NUDOCS 8609040020 | |
| Download: ML20203M501 (1) | |
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_g Omaha Public Power District 1623 Harney Omaha. Nebraska 68102 2247 402/536:4000 July 24, 1986
~LIC-86-350 33k.$
- N N J. E. Gagliardo, Chief Reactor Projects Branch U.S. Nuclear Regulatory Commission
,w Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Tx. 76011 References
- 1. Docket No. 50-285
- 2. Inspection Report 50-285/86-11, dated June 19, 1986
Dear Mr. Gagliardo:
Inspection Report 86-11 Notice of Deficiency Omaha Public Power District (0 PPD) recently received Reference 2, identifying a deficiency in our emergency preparedness program.
Specifically, the man.ual graphical method for offsite dose assessment was stated as providing exces-sively conservative dose projections under certain circumstances.
This deficiency has been reviewed and the cause has been identified.
The method used was based on a single, conservative atmospheric stability class (class F) for all projections. When the actual stability class is A, B, C, D or E, an overly conservative dose assessment would result.
In order to correct this situation, OPPD has developed stability class con-l version factors to provide more accurate dose projections for each of the stability classes. The Emergency Plan Implementing Procedure for dose assess-ment, EPIP-EOF-6, is being revised. The revised procedure is to be issued by September 1, 1986, with appropriate training also being provided. These act-ions are believed to be adequate to correct the identified deficiency.
If you have any questions concerning this response, please do not hesitate to contact us.
Sincerely, f
8639040020 860828 PDR ADOCK 05000285 R. L. Andrews 0
PDR Division Manager Nuclear Production RLA/me cc: LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Ave., N.W.
Washington, DC 20035 Mr. D. E. Sells, NRC Project Manager Mr. P. H. Harrell, NRC Senior Resident Inspector 7 g _ K, tmpovenign tauai oppmrunau assv4