3F0184-11, NPDES Noncompliance Notification:On 831226 & 27,temp Limits Exceeded.Caused by Massive Influx of Dead & Stunned Fish as Result of Rapidly Declining Cooling Water Temp Accompanied by High Winds.Intake Structures Cleaned

NPDES Noncompliance Notification:On 831226 & 27,temp Limits Exceeded.Caused by Massive Influx of Dead & Stunned Fish as Result of Rapidly Declining Cooling Water Temp Accompanied by High Winds.Intake Structures Cleaned

ML20083J381
Person / Time
Site:	Crystal River
Issue date:	01/09/1984
From:	Westafer G FLORIDA POWER CORP.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
3F0184-11, 3F184-11, NUDOCS 8401160298
Download: ML20083J381 (4)

Text

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Nid8 Power C o a p o a a t i O *e January 9,1984 3F0184-11 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Crystal River Unit 3 Docket No. 50-302 Operating License No. DPR-72 NPDES Permit Reporting to the Environmental Protection Agency

Dear Sir:

Florida Power Corporation hereby submits a copy of a report filed with the Environmental Protection Agency concerning the exceeding of the temperature limits as set forth in the NPDES permit. This submittal is made in accordance with Crystal River Unit 3 Technical Specifications, Appendix B, Part II, Section 3.2.

If there are any questions concerning this submittal, please contact this office.

Sincerely, W

G. R. Westafer Manager, Nuclear Operations Licensing and Fuel Management DVH/feb Attachments cc: Mr. 3. P. O'Reilly Regional Administrator, Region 11 ,5 .

Office of Inspection & Enforcement U.S. Nuclear Regulatory Commission 101 Marietta Street N.W., Suite 2900 Atlanta, GA 30303 ffj

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8401160298 840109 PDR ADOCK 05000302 PDR g

GEN ERAL OFFICE 3201 Thirty-fourth Street South e P.O. Box 14042, St. Petersburg, Florida 33733

• 813-866-5151 l

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u- s Power Co mpon a Y s0N January 5, 1984

. Mr. Peter T. McGarry, Chief Florida / Mississippi Unit Water Management Division U. S. Environmental Protection Agency 345 Courtland Street Atlanta, Georgia 30365

Subject:

Crystal River Plant NPDES Permit FL0000159

Dear Mr. McGarry:

In accordance with noncompliance notification requirements of the Crystal River NPDES permit, Florida Power Corporation submits the following information.

On December 26, 1983, Crystal River Unit 3 exceeded the temperature limits as set forth in the permit. This occurred as the result of a massive influx of dead and stunned fish which was most likely the result of rapidly declining cooling water temperature accompanied by high winds. When the fish reached the intake structure'it decreased the condenser cooling water flow into the condenser and therefore the temperature rise (delta T) across the condenser increased sharply.

The 17.5'F delta T three-hour limit was exceeded from 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> December 26, 1983, to 0000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> December 27, 1983, and the 21.0*F delta T one-hour limit was exceeded from 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> December 26, 1983 to 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br /> December 26, 1983. A table is attached showing actual water temperatures.

Unit 3 was taken off-line at 0016 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> on December 27, 1983 and cleaning of the intake structures commenced. The unit was brought on-line again at 1115 hours0.0129 days <br />0.31 hours <br />0.00184 weeks <br />4.242575e-4 months <br /> December 27, 1983 and power escalation commenced. The unit remained at reduced power and cleaning of the condensers continued until the unit returned to full service December 29, 1983.

The dominant fish species observed in the intake canal were the scrawled cowfish (Lactophrys quadricornis), striped burrfish (Chilomycterus schoepfi),

and ladyfish (Elops saurs). Substantial numbers of dead and stunned fish were also observed by Mote Marine Lab personnel in the shallow waters south Generd Office 3201 Thirty-fourin street soutn . P O Box 14042. st Petersburg. Florida 33733 e 813-666-5151

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'Mr. Peter T. McGarry

. January 5, 1984 Page 2 of the intake canal. The presence of fish in areas not associated with the power plant suggests a general cold induced effect over a broad geographical area rather than a plant specific impact.

Should you have any questions concerning this matter, please advise.

Very truly yours,

.s Walter S. Wilgus Vice President .

Nuclear Operations ,

WSW/gr Attachment ec: Ms. V. J. Tschinkel, DER Mr. D. A. Williams, DER W

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in TIME OUTLET WATER INLET WATER- CONDENSER TEMPERATURE (*F) TEMPERATURE (*F) delta T (*F)

December 26, 1983 2000 84.1 50.0 34.1 2100 81.7 49.9 31.8 2200 86.1 49.6 36.5 2300 69.0' 49.G 19.4 December 27, 1983 0900 67.8 49.1 18.7

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