ML17227A520

NPDES Noncompliance Notification:On 920714,discovered Loss of Pump Suction on Hydrazine Chemical Feed Sys Tanks, Resulting in Discharge of 72 Lbs of Hydrazine to Storm Drain Sys.Caused by Open Drain Valve.Investigation Underway

ML17227A520
Person / Time
Site:	Saint Lucie
Issue date:	07/17/1992
From:	Sager D FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-92-212, NUDOCS 9207270230
Download: ML17227A520 (6)

Text

ACCELERATED DISTjGBUTION DEMONSTPA.TION SYSTEM REGULB INFORMATION DISTRIBUTIOi+YSTEM (RIDE)

M A(.:CESSION NBR:9207270230 DOC.DATE: 92/07/17 NOTARIZED: NO DOCKET

'FACIL 50-,.389 St. Lucie Plant, Unit 2, Florida Power & Light Co. 05000389 AUTlI '. NAME AUTHOR AFFILIATION SAGER,D,A. Florida Power s Light Co.

RECIP.4>AME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

NPDES noncompliance notification:on 920714,discovered loss of pump suction on hydrazine chemical feed sys tanks, resulting in discharge of 72 lbs of hydiazine to storm drain sys.Caused by open drain valve. Investigation underway.

DISTRIBUTION CODE: IE23D COPIES RECEIVED:LTR I ENCL SIZE:

TITLE: Environmental Event Report (per Tech Specs)

NOTES:

RECIPIENT COPIES RECIPIENT COP1ES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 LA 3 3 PD2-2 PD 1 1 NORRISFJ 1 1 INTERNAL: ACRS 5 5 NRR/DREP/PEPB9D 1 1 NRR PMAS ILRB12 1 1 OGC/HDS3 1 1 G FILE 1 1 RGN2 1 1 EXTERNAL: NRC PDR NSIC 1 1 NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTEI CONTACT THE DOCUMENT CONTROL DESK ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISIS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 17 ENCL 17 gr.

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P.O. Bex 128, Ft. Pierce, FL 34954-0128 July 17, 1992 L-92-2 12 10 CFR 50 36b ~

EPP 5. 4. 2 U. S ~ Nuclear Regulatory Commission Attn: Document Control Desk Washington, D C. 20555 ~

Re: St. Lucie Unit 2 Docket No. 50-389 Environmental Protection Plan Report Date of Event: July 14, 1992, 1992 Non-routine Environmental Event The attached Report is being submitted pursuant to the requirements of Section 5 4 . 2 of the St. Lucie Unit 2 Environmental Protection

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Plan. The attached provides a description of a reportable hydrazine release to the on-site stormwater basin at the St. Lucie Plant.

Very truly yours, D~ A. ager Vice es ident St. Lucie Plant DAS/GRM/kw Attachment cc: Stewart D Ebneter, Regional Administrator, USNRC Region

~ II Senior Resident Inspector, USNRC, St. Lucie Plant DAS/PSL 71736-92 9207i70230 9207 i 7 PDR ADOCK Oci000389 FrOR oo FPi. GrouP compooY

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P.O. Bo 768, 'Nest Paten Beacn, FL 33407.0768 5500 Village Blvd.

FPL July 17, 1992 Mr. Tim Powell Florida Department of Environmental Regulation Southeast District 1900 South Congress Ave., Suite A West Palm Beach, Florida 33406 Re: Hydrazine Release St. Lucie Plant

Dear Mr. Powell:

As a follow-up to our July 14, 1992 verbal report to the FDER, this written report is being provided for the subject event as you requested. At approximately 2:30 a.m. on July 14, 1992, St. Lucie plant personnel discovered a loss of pump suction on the Unit 2 hydrazine chemical feed system tanks. An investigation revealed that the chemical feed tanks, which collectively hold approximately 200 gallons of dilute hydrazine solution, were empty. Further investigation revealed that a drain valve from a pump connected to the tanks was partially open. An analysis of activities leading up to the open drain valve discovery revealed that the probable cause was inadvertent bumping of the drain valve to the open position during maintenance on the chemical feed system on July 13, 1992.

The released hydrazine solution resulted in the discharge of approximately 72 pounds of hydrazine to the storm drain system which drains to the onsite West Stormwater Basin, an evaporation/percolation basin with no surface water outfall. FPL does not believe that the release constituted an off-site release as defined under Section 304 of SARA Title III, but was reportable under CERCLA, since hydrazine has an RQ of one (1) pound. The event was reported to the National Response Center and as a courtesy to the State Emergency Response Commission and the District 10, Local Emergency Planning Committee on the morning of July 14, 1992.

The release did not result in any on or offsite health or safety impacts and no emergency response and/or clean-up actions were required. Plant personnel are investigating corrective action measures. Initially, the drains from all chemical injection pumps have been capped to prevent releases to the storm drain system. Additionally, the engineering feasibility of secondary containment for the chemical feed system is being investigated.

If there are any questions, please telephone Alan Benedict at 407-6974964.

Sincerely,

. Les ovjan Ma ger Hazardous Substances Regulation LLI 'ku cc: Eve Rainey - SERC Bruce Pisani - District 10 LEPC an FPL Group company

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