ML19263B681

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Repts Deficiency Re High Head Safety Injection Discovered 790108:design Svc Water Flow to Each Charging/High Head Safety Injection Pump Well Below Value Due to Higher than Expected Pressure Drops Across Skid Cooling Sys
ML19263B681
Person / Time
Site: North Anna Dominion icon.png
Issue date: 01/12/1979
From: Brown S
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-PT21-78-095-000 026, 26, NUDOCS 7901220362
Download: ML19263B681 (2)


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9 RII Rpt. No. 50-261/78-28 I-4 inspector's comments and stated that such a review would be made.

(78-28-01) d.

IE Report No. 50-261/78-23 discussed an error in the solid waste shipment section of the January-June, 1978, Semi-Annual Effluent Report (78-23-04). Corrected copies of pages 12 and 14 of that report have been submitted to Region II. There are no further questions on that item.

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7.

Procedures for Controlling and Evaluating Effluent Releases a.

An inspector reviewed Health Physics Procedure 14

" Liquid Release Accountability", and Health Physics Procedure 15,

" Gaseous Effluent Accountability", taking note of changes and revisions over the past year. All changes and revisions appeared to have been made in accordance with the procedural control system and reviewed and approved by appropriate management. A complete revision to HP-15 was approved in November, 1978, and a similar revision to HP-14 is planned in the near future. The licensee appeared to be complying with the approved procedures.

b.

The licensee has recognized a need to develop and upgrade written instructions to provide the step-by-step details needed for consistency in the sampling, analysis, approval, documentation, and accountability associated with effluent releases. These are being developed in the form of Health Physics Instructions requiring review and approval by the E&RC Supervisor.

The inspector noted that a considerable effort will be required to get the necessary instructions completed and issued.

Licensee management acknowledged the inspector's comment, and indicated that emphasis would be placed on the project. The status of these implementing instructions will be reviewed during a later inspection. (78-28-02) 8.

Exit Interview The inspector met with management representatives (denoted in paragraph 1) on December 1, 1978, and sununa rized the scope end findings of the inspection.

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YGPCO January 12, 1979 Mr. James P. O'Reilly, Director Serial t!o. 026 Office of Inspection & Enforcement PSESC/CGC:bep/mc U. S. fluclear Regulatory Conmission Region II Docket tio. 50-339 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Sir:

On January 8,1979, a report was made under the provisions of 10CFR50.55(e) concerning High Head Safety Injection Pumps.

In accordance with the reporting requirements of 10CFR21, the following information is submitted:

A.

tiame and address of reporting individual:

Mr. E. A. Baum, Executive Manager Licensing and Quality Assurance Virginia Electric and Power Company P. O. Box 26666 Richmond, Virginia 23261 B.

Facility, activity, and/or component affected:

. North Anna Power Station, Unit 2 High Head Safety Injection Pumps C.

tlame of firm constructing the facility or supplying the component, activity or service.

Stone and Webster Engineering Corporation P. O. Box 2325 Boston, Massachusetts 02107 D.

Description of defect, deficiency, or failure to comply:

The design service water flow to each of the charging /high head safety injection pumps is 37 gpm for 95*F service water.

Tests now indicate that the r -imum flow rate obtainable in the present system is well below th;, value due to higher than expected pres-sure drops across the skid coolir.g system.

e January 3,1979

s v.saa cucTn: na eo.ua :

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i'r. James P. O'Reilly sster s:.

2 F.

Similar components, activities, or services:

l' orth Anna Unit 1 G.

Corrective action which has been, is being or will be taken, the indi-vidual responsible and the length of time to complete the action:

Investigation is proceeding to determine the cause and extent of the problem.

H.

Other information:

t'one Any information not available at,this time will be submitted in a follow-up letter as a 30-day report.

Should you require further information, please contact this office.

Verythr

yours,

,ag s Sam.Eyown,Jr.

Senior Vice President Power Station Engineering and Construction cc:

Cirs: tor, Office of Inspection and Enforcement (3)