ML20087P610

Forwards NPDES Noncompliance Notification:On 840329,violent Storm Caused Grass & Other Debris to Be Swept by Waves & High Winds Into Water Boxes,Restricting Flow of Cooling Water & Increasing Temp.Debris Cleared & Temp Decreased

ML20087P610
Person / Time
Site:	Calvert Cliffs
Issue date:	04/02/1984
From:	Russell L BALTIMORE GAS & ELECTRIC CO.
To:	Schmidt B ENVIRONMENTAL PROTECTION AGENCY, NRC OFFICE OF ADMINISTRATION (ADM)
References
NUDOCS 8404090213
Download: ML20087P610 (2)

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BALTIMORE G AS AND ELECTRIC COMPANY P.O. BO X 14 7 5 B ALTIM OR E. M A R YL AN D 212o3 HUCLEAR POWER DEPARTMENT CALVERT CLIFF 5 NUCLEAR POWER PL ANT LUSBY M ARYLAND 20657 April 2, 1984 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555

Dear Sirs:

In accordance with Section 3.2, No. 1 of the Environmental Protection Plan, Appendix B, Part 2 Technical Specifications, enclosed is a copy of the violation of the NPDES permit for the Calvert Cliffs Nuclear Power Plant.

Very truly yours, J

L. B. Russell Plant Superintendent LBR:FCB:md cc: Dr. Thomas E. Murley Director, Office Management Information

& Program Control Messrs: A. E. Lundvall J. A. Tiernan N 1 8404090213 7

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B ALTIMORE G AS AND ELECTRIC COMPANY P.O. B O X 14 7 5 S A LTIM O R E'. M A R Y L A N D 2120 3 NUCLEAR power DEPARTMENT CALVERT CLIFFS NUCLEAR POWER PLANT LUSSY. M ARYLAND 20657 April 2, 1984 Office of Environmental Programs Waste Management Administration 201 West Preston Street Baltimore, Maryland 21201 Attention: Mr. Barry Schmidt Re: Maryland State Discharge Permit No. 79-DP-0137 and NPDES Per=it No. MD. 0002399

Dear Mr. Schmidt:

On March 29, 1984, Outfall OOL experienced a noncompliance with gespect to temperature increase across the condensers of Unit 1. The 12 F A T limitation wgs exceeded for two consecutive hours, reaching a recorded high of 13.7 F. Immediately, power was reduced and eventually lowered to 53" to allow water boxes to be cleaned.

The violent storm caused severe wave action and high winds to sweep grasses and other debris into the water boxes, restricting the flow of cooling water. With the removal of this debris, the flow returned to normal and the temperature change to within the allowable range. This is regarded as an uncontrollable, weather-related anenaly, and no other corrective action is planned.

This noncompliance was reported via telephone to your office on March 29, 1984. Should you hw e questions regarding this information, please feel free to call.

Very truly yours, lbf L. B. Russell Plant Superintendent L3R:FC3:md cc: U. S. Nuclear Regulatory Commission r