PNO-III-99-042, on 990921,large Sanitary Water Line Ruptured at Portsmouth Gaseous Diffusion Plant,Causing Loss of Sanitary Water to Plant.Resident Inspector Monitored Plant Response to Incident.State of Oh,Oh EPA & NRC Ctr Contacted

PNO-III-99-042:on 990921,large Sanitary Water Line Ruptured at Portsmouth Gaseous Diffusion Plant,Causing Loss of Sanitary Water to Plant.Resident Inspector Monitored Plant Response to Incident.State of Oh,Oh EPA & NRC Ctr Contacted

ML20212E443
Person / Time
Site:	Portsmouth Gaseous Diffusion Plant
Issue date:	09/21/1999
From:	Hiland P, Reidinger T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
References
PNO-III-99-042, NUDOCS 9909270014
Download: ML20212E443 (1)

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September 21, 1999 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PN0-III-99-042 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety.or public interest significance. The information is as initially received without verification or evaluation' and is basically all that is

, known by Region III staff'(Lisle. Illinois) on this date.

Facility- Licensee Emergency Classification United States Enrichment Corporation Notification of Unusual Event Portsmouth Gaseous Diffusion Plant Alert Piketon.0hio Site Area Emergency Dockets:'07007002 General Emergency X Not Applicable

Subject:

RUPTURE OF A LARGE SANITARY WATER LINE On September 21, 1999, at aaproximately 7:30 a.m.(CDT), a large sanitary water line ruptured at the )ortsmouth Gaseous Diffusion Plant causing a

. loss of sanitary water to the plant. The leak was stopped at 9:42 a.m.

(CDT).

The plant staff estimated that approximately 275,000 gallons of chlorinated water, which leaked from the broken pipe, flowed through a plant outfall-into Little Beaver Creek. There was no radioactive contamination from the plant in the water, and no personnel injuries associated with the event.

Some operating equipment, affected by the loss of sanitary water, was shut down. Most plant water needs are being satisfied by the remaining sanitary water line. -Normal operations of the enrichment processing system were not affected, and the plant continues to operate safely.

There was no impact on the fire suppression systems, i.e.. fire sprinkler systems, in the-enrichment processing facilities. Fire watches were established for secondary buildings that were affected by loss of sanitary water to fire s)rinklers. Plant staff will address any future

. issues associated with tie broken water line.

The resident inspector monitored the plant's response to the incident.

The State of Ohio. Ohio EPA, U.S. EPA, and NRC operations center were contacted.-

'The information presented herein has been discussed with plant management and.is current as of 12:40 a.m..(CDT) on September 21, 1999.

Contact:

Timothy Reidinger Patrick Hiland l (630)829-9816 (630)829-9603 l 9909270014 990921 PDR I&E PNO-III-99-042 PDR h '()

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