ML19241A657: Difference between revisions

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{{#Wiki_filter:a NORTHERN              STATCS            POWER        COMPANY M IN N E A POLI S. MIN N E SOTA 55401 July 2, 1979 FL J G Keppler, Director, Region 111 Office of Inspection & Enforcement U S Nuclear Regulatory Connission 799 Roosevelt Road Glen Ellyn, Illinois 60137
 
==Dear Mr Keppler:==
 
PRAIRIE ISLiND NUCLEAR GENERATING PL\NT Docket No. 50-282        License No. DPR-42 50-30'                        DPR-60 Environmental Event Report 79-05 Cooling Tower Operations - June Under TS B-5.4.2.A, we are furnishing two copics of this Environmental Event Report covering operation of the plant circulating water system in the partial recycle mode with daily average blowdown flow in excess of 150 cfs.
Daily average blowdown flow in excess of 150 cfs was required 26 days during the month of June. Excess flow ranged from 155 cfs on June 18 to 452 cfs required on June 20. The daily blowdown flow rate average for the month was 268 cfs.
The higher fleus were required to accommodate cooling tower preventative maintenance and to maintain cooling water inlet temperatures at less than 850F.
Yours very truly, C:- p L/LE dA      t E C Ward, PE Manager-Nuclear Environmentt.1 Services ECW/jh cc  Director, NRR c/o DSB (17)
MPCA Attn: J W Ferman bli    13]
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Latest revision as of 01:33, 27 October 2019

Environ Event Rept 79-05 for June 1979:daily Average Blowdown Flow of Plant Circulating Water Sys Was in Excess of 150 Cfs Fpr 26 Days.Caused by Need to Accommodate Cooling Tower Preventive Maint
ML19241A657
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 07/02/1979
From: Ward E
NORTHERN STATES POWER CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 7907090202
Download: ML19241A657 (1)


Text

a NORTHERN STATCS POWER COMPANY M IN N E A POLI S. MIN N E SOTA 55401 July 2, 1979 FL J G Keppler, Director, Region 111 Office of Inspection & Enforcement U S Nuclear Regulatory Connission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr Keppler:

PRAIRIE ISLiND NUCLEAR GENERATING PL\NT Docket No. 50-282 License No. DPR-42 50-30' DPR-60 Environmental Event Report 79-05 Cooling Tower Operations - June Under TS B-5.4.2.A, we are furnishing two copics of this Environmental Event Report covering operation of the plant circulating water system in the partial recycle mode with daily average blowdown flow in excess of 150 cfs.

Daily average blowdown flow in excess of 150 cfs was required 26 days during the month of June. Excess flow ranged from 155 cfs on June 18 to 452 cfs required on June 20. The daily blowdown flow rate average for the month was 268 cfs.

The higher fleus were required to accommodate cooling tower preventative maintenance and to maintain cooling water inlet temperatures at less than 850F.

Yours very truly, C:- p L/LE dA t E C Ward, PE Manager-Nuclear Environmentt.1 Services ECW/jh cc Director, NRR c/o DSB (17)

MPCA Attn: J W Ferman bli 13]

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