GO2-04-109, May 2004 Monthly Operating Report for Columbia

May 2004 Monthly Operating Report for Columbia

ML041740653
Person / Time
Site:	Columbia
Issue date:	06/15/2004
From:	Oxenford W Energy Northwest
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GO2-04-109
Download: ML041740653 (3)

Text

ENERGY NORTH WEST PO. Box 968

• Richland, Washington 99352-0968 June 15, 2004 G02-04-109 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001

Subject:

COLUMBIA GENERATING STATION, DOCKET NO. 50-397 MONTHLY OPERATING REPORT MAY 2004

Dear Sir or Madam:

Transmitted herewith is the Monthly Operating Report for the month of May 2004 as required by Technical Specification 5.6.4.

Respectfully, WS Oxenford Plant General Manager Mail Drop 927M Attachment cc: BS Mallett - NRC RIV WA Macon - NRC NRR NRC Senior Resident Inspector - 988C TC Poindexter - Winston & Strawn INPO ANI Library Utility Data Institute RN Sherman - BPA/ 1399

OPERATING STATUS REPORT for Columbia Generating Station Date: June 1, 2004

1. Docket: 50-397

2. Reporting Period: May 2004

3. Utility

Contact:

Patricia Campbell (509) 377-4664

4. Design Electrical Rating (Net MWe): 1153

5. Maximum Dependable Capacity - summer (Net MWe): 1107 MONTH YEAR CUMULATIVE

6. -Hours Reactor Critical - 744.0 --- - 3,647.0---130,505.5

7. Hours Generator On-Line 744.0 3,647.0 127,060.6

8. Unit Reserve Shutdown Hours 0.0 0.0 3,274.7

9. Net Electrical Energy (MWH) 786,513 3,995,056 126,862,708

I UNIT SHUTDOWNS DOCKET NO.: 50-397 UNIT NAME: Columbia Generating Station DATE: June 1, 2004 COMPLETED BY: P. Campbell TELEPHONE: (509) 377-4664 REPORT PERIOD: May, 2004

1 Type Method of Cause / Corrective Actions F: Forced Duration Sui No. Date S: Scheduled (Hours) Reason (1) Down (2) Comments NA

SUMMARY

i Columbia Generating Station began and ended the month at full reactor power. OnMay 1st & 2nd, 8th & 9th, 15th & 16th, and the 28th, power was reduced to about 81% for control rod HCU recovery. On May 22nd & 23rd, power was reduced to about 80% for the I.I planned control rod sequence exchange and HCU recovery. On May 25th & 26th the power was reduced to about 60% for the planned main condenser tube leak repair. From May 29th to the 31 st power was reduced to 85%, and then further to 65% at the request of the load dispatcher.

(1)REASON (2) METHOD A - Equipment Failure E - Operator Training & 1 - Manual B - Maintenance or Test License Examination 2 - Manual Trip/Scram C - Refueling F - Administration 3 - Auto Trip/Scram D - Regulatory Restriction G - Operational Error 4 - Continuation H - Other i 5 - Other (Explain)