ML051450524

Handwritten Notes Re Millstone Unit 3

ML051450524
Person / Time
Site:	Millstone
Issue date:	04/17/2005
From:	- No Known Affiliation
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2005-0208
Download: ML051450524 (6)

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(g) 0829 Mill-3 Rx and SI Trip because of low steam pressure on 'B1 steam line. MSIVs closed. Several main steam safety valve lifted. Primary safety lifted and then reseated. Entered E-0.

0842 Millstone 3 declared an Alert CIdue to main steam safety relief valve lift on "B" steam generator (20 Main steam safety valves total at Millstone-3). Reactor trip occurred. SI occurred.

0953 NRC entered Monitoring Mode NRC Requested ERDS to be initiated - Dominion having some difficulty in establishing ERDS 1005 First responder arrived in Region I IRC 1010 NRC Requested ERDS to be initiated - Dominion having some difficulty in establishing ERDS 1040 NYS contacts NRC Ops Center to request event briefing.

1045 R. Bores contacted RI IRC. CT notified and NYS (A. Feeney) will be notified.

Bores ETA @ IRC - 11:30.

1054 Status update - Terry turbine started and then tripped restarted currently feeding with three aux feed pumps.

1058 SRI in the Millstone control room. MSI\Vs are closed, ADVs are being used for pressure, three AFW pumps in service 1105 Status update from Dominion - Cause for trip is not determined. Dominion has considered tampering and has no reason to believe that tampering is an issue.

After SI pressurizerwent solid. Met SI termination criteria. Established normal charging currently pressurizer level 64% and pressurizer pressure 2002 psig.

Dominion has send some individuals to the armory but state personnel are not present. Dominion has some personnel in its corporate EOF. Radiation levels are normal. No evidence of a primary/secondary leak. Dominion is developing criteria for terminating from the Alert. An increase of level in the PRT indicates evidence of some primary system leakage.

1113 ERDS has not yet been established 1130 W. Lanning requested SRI to provide briefing on the event.

1132 W. Lanning I Max Schnieder updating Ellis - PRL 64% PRT 82% increasing slowly 2200 RX pressure. Dominion developing termination criteria. No evidence of tampering but still being purused. ADVs controlling pressure. During the week replaced power supply on pressure instruments for the uB' steam line.

Page 1

i Robert Bores - Millstone IR 1 update.doc -Page 1i FEMA, Region One 99 High Street Boston, MA 02110 617-956-7501 INCIDENT REPORT

1. INCIDENT REPORT: #1 (Update)

2. TYPE OF INCIDENT: CT-Alert Millstone-04I17/05

3. INCIDENTOCCURANCE 04/17/05,0843

4. INCIDENT REPORT: 04/17/2005,1225 S. DESCRIPTION: An Alert, Charlie One, Classification of an event at the Millstone Nuclear Power Station, Unit 3, occurred on the morning of 4/17/05 at 0843. There was an un-isolatablc steam break in the secondary unit which did not involve a release of radiation. Since then the valve has been closed manually. The plant status is stable and there has been NO RELEASE OF RADIATION. Tere is no risk to off-site personnel.

Unit 2 is off-line for refueling at this time and there awe 600 working on-site for this refueling. There have been no injuries and no evacuations on-site or off-site. The Utility EOF is fully staffed and the State EOC staff is either there or on their way. CT DEP Radiation Control Unit Staff and Dominion personnel are at the State EOC.

Unit 3 will go into a cold shutdown until it is determined what caused the valves to tip.

This could take some time due to the need to cool down at a rate of 100 degrees per hour.

A News Release has been issued by Dominion and the State EOC is getting that out to the locals and contiguous states.

The DEP Radiological Unit has sent an individual to the State EOC. Dr. Wildes, the Direcotr of the Radiation Program for CT concurs with the Licensee's control room and EOF staff that there has been NO Radiological release and there is NO radiological contamination on site because this incident occurred on the secondary side of the unit where there is no radiation.

This is considered to be a minor event and will hopefully be closed out today.

6. LOCATION: Millstone Nuclear Power Station, Unit 3,Waterford, Connecticut

i Robert Bores - Millstone IR 1 update.doc . Page2

7. SOURCE OF INFORMATION: State of Connecticut lead Radiological Planner; State of Connecticut Operations Officer.

8. STATE AND LOCAL RESPONSE: State EOC is staffed with Emergency personnel, Department of Environmental Protection staff and licensee Liaisons

9. FEDERAL ASSISTANCE: FEMA Region I's State Liaison Officers to the State of Connecticut have been placed on standby. At this time the State does not expect to request their deployment.

10. ADDITIONAL INFORMATION and CONTACT: There will be another conference call at 1330. The Region will participate and be in communication with Connecticut and the Nuclear Regulatory Commission until the incident closes.

CONTACT: Deborad S. Bell, Technical Services Branch Chief and RAC Chair Home telephone: 207-938-2378 Cellulw. 617447-0484 EmailhDeborab.bell@dhs.gov