ML20011A870
| ML20011A870 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 10/21/1981 |
| From: | Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-80-10, NUDOCS 8111030305 | |
| Download: ML20011A870 (2) | |
Text
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PHILADELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BOX 8699 1881 -1981 PHILADELPHI A PA.19101 SHIELDS L DALTROFF ELECTmic PR C ION October 21, 1981 IE Bulletin 80-10 Re: Docket Nos. 50-277 50-278 sh 0
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Mr.
R.
C.
Haynes, Director NOyQ 21981>
Region I g.
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Office of Inspection and Enforcement coa *tS*
- A U.S. Nuclear Regulatory Commission D
631 Park Avenue b
h-King of Prussia, PA 19406
Dear Mr. Haynes:
In my letter to you dated Jul1 2, 1980, concerning IE Bulletin 80-10, the stated method for checking unmonitored releases via the circulating water system consisted of a combination of contamination swipes of the condenser tubesheet whenever the water box is open and a composite sample of the circulating water when the unit is operating.
During a recent review it was determined that-the requirement for a composite sample is not valid.
Contamination swipes of the tubesheet continue to be taken as a matter of routine by Health Physics personnel.
The bases for the decision to delete the composite sample are as follows:
1)
During operation condenser vacuum would dictate a route of leakage from the circulating water to the condensate thus a release is precluded.
8111030305 811021 PDR ADOCK 05000277 G
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Mr.
R. C. H;ynna Pr.ga
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During shutdown periods it would be:necessary for the condensate level to be above the~' level of the tubesheet in order for a leak to occu'r, however, operators have been instructed, by appropriate posting, to maintain the hotwell levels below the tubesheet area.
3)
The extremely large dilution factor in the circulating water would render all but the largest leak of contaminated water undetectable.
If there are any further questions, please contact us, very truly yours,
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