ML19316A783

Forwards Request for Addl Responses to NRC Long & short-term Recommendations Re Auxiliary Feedwater Sys.Open Items Must Be Resolved Acceptably Before Safety Evaluation Can Be Issued.Responses Needed within 45 Days

ML19316A783
Person / Time
Site:	Point Beach
Issue date:	05/16/1980
From:	Clark R Office of Nuclear Reactor Regulation
To:	Burstein S WISCONSIN ELECTRIC POWER CO.
References
TASK-2.E.1.1, TASK-2.E.1.2, TASK-TM TAC-11692, TAC-11693, NUDOCS 8005270513
Download: ML19316A783 (6)

Text

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'+A.....,.o' May 16,1980 Dockets Nos.

266 and 50-301 Mr. Sol Burstein Executive Vice President Wisconsin Electric Power Ccmpany 231 West Michigan Street Milwaukee, Wisconsin 53201

Dear Mr. Burstein:

In conducting our review of your responses to our letter of September 21, 1979 relating to NRC requirements for the auxiliary feedwater system at Point Beach Nuclear Plant, Units Nos.1 and 2, we have determined that we will need the additional information and your response to the positions resulting from our review identified in the enclosure to complete the review.

In order for us to maintain our review schedule, your response is req'uested within 45 days of your receipt of this letter. The open items identified in the enclosure.:ust be resolved.in a manner acceptable to the NRC staff before the Safety Evaluation Report related to this matter can be issued.

Please contact us if you have any questions concerning this request.

Sincerely, R. A. Clark, Chief Operating Reactors Branch #3 Division of Licensing

Enclosure:

Request for Additional Information and NRC Staff Positions cc w/ enclosure:

See next page 8005270 $1}

Mr. Sol Burstein Wisconsin Electric Power Cogany ec:

Mr. Brace Churchill, Esquire Shaw, Pitt:r.an, Potts and Trewbridge 1800 M Street, N.W.

Washington, D. C.

20036 Docurnent Depart:nent University of Wisconsin Stevens Point Library Stevens Point, Wisconsin 54481 Mr. Glenn A. Reed, Manager Nuclear Operations Wisconsin Electric Power Conpany Point Beach Nuclear Plant 6610 Nuclear Road Two Rivers, Wisconsin 54241 Ms. Kathleen M. Falk General Counsel.

Wisconsin's Environmental Decade 302 E. Washington Avenue ludison, Wisconsin 53703 1

4*

Enclosure POINT BEACH NUCLEAR PLANT, UNITS 1&2 AUXILIARY FEEDWATER SYSTEM REQUIREMENTS DOCKET NOS. 50-266 & 50-301 A.

Short Term Recommendations 1.

Recommendation GS-1 The licensee's response to this recommendation is unacceptable and indicates that the licensee may have misinterpreted our requirement.

We require that all four AFW pumps be operable prior to taking the reactor critical for two unit operation and three of the four AP4 pumps (including two motor driven.and the associated turbine driven pump) be operable for single unit operation.

Under two unit opera-tion, with one motor driven AP4 pump inoperable, both units should be shutdown within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> if the pump cannot be restored. The licensee should revise the appropriate Technical Specifications and submit them to us for review.

2.

Recommendation GS-2 The licensee's response to this recomendation is acceptable.

3.

Recommendation GS-4 The licensee's response to this reconnendation is acceptable.

4.

Recommendation GS-5 The licensee's response to this recommendation is insufficient for us to complete our review.

For the short tenn the licensee should verify that emergency procedures for a complete loss of AC power are available or propose emergency procedures that includes necessary steps to assure cooling water to the turbine driven pump bearings or that require an operator to be stationed at the pump (to monitor bearing temperature) l

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. in communication with the control room to allow for on-off control of the turbine driven pump if necessary.

The licensee should also verify i

adequate lighting and communications are available for all operator actions outside the control rocm.

(See Recommendation GL-3 for long term.)

5.

Recommendation GS-6 1

The licensees response to the first part of this recommendation is un-acceptable.

We require that plant procedures be revised to include a second operator independent verification that AFW system valves have been properly aligned to their normal position following performance of periodic testing or maintenance.

The licensees response to the second part of this recommendation is acceptable.

However, the licensee should verify that the periodically perforr.ed full flow inservice inspection test provides AFW flow to the steam generators.

6.

Recommendation GS-7 The licensee's response to this recommendation is currently under re-view.

We will provide the results of our review at a later date.

B.

Additional Short Term Recommendations 1.

The licensees response to this recommendation is acceptable.

2.

The licensee indicates that 72-hour endurance tests were completed on all AFW pumps by December 30, 1979.

In order that we may review the test results, provide us with a copy of the test procedure and resulting test data. The type of information we require is described in the NRC

1, '

memorandum dated December 3,1979 which reduced the test from 72 to 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> and which you indicate you have in your possession. The licensee should provide as much of the infomation identified in the December 3,1979 memorandum as possible.

3.

The licensee's response to this recomendation is currently being evaluated by the Lessons Learned Implementation Task Force.

4.

The licensee's response to this recommendation is acceptable.

5.

We have the following additional concern based on Preliminary Notifica-tion of Event or Unusual Occurrence - PN0 III-80-25, dated February 5, 1980. The notice describes an incident where the pressure transmitters on the discharge of the two motor driven AP4 pumps were valved out.

The transmitters sense pump pressure and open the motor driven pump discharge valves.

Describe the measures taken such as independent operator verification or other procedural changes to prevent occurrence of similar errors in the future.

C.

Long Tem Recommendations 1.

Recomendation GL-3 The licensee response to this recomendation indicates that the pro-posed modificatier_ to the turbine driven APA pump bearing cooling system described for Recomendation GS-5 is intended as a long term solution for assuring APA pump operation independent of all AC power. We do not consider the design for providing bearing cooling water from the diesel driven fire pump adequate as a final solution since manual operator action

~ sks 1 is required. An acceptable solution is to provide bearing cooling water from a recirculation line directly off the AFW pump discharge.

It is our position that the licensee provide a long term design which will automatically initiate and assure AFW flow and be capable of being operated independently of any AC power for at least two hours.

No credit will be given for any operator actions outside the control room for two hours.

2.

Re ommendation GL-4 The licensees response to this recommendation is unacceptable. The licensee has failed to demonstrate that AFW pump protection can be adequately provided by manual action in the event of a failure in the condensate storage tanks due to a seismic event or torando.

It is our position that the licensee provide automatic switchover to the service water system on low suction pressure to the AFW pumps, or upgrade the pri-mary water supply to meet seismic Category I requirements and tornado protection.

4 3.

Recommendation GL-5 See Recommencation GS-7 above.

D.

Basis for AFW System Flow Recuirements The licensee has indicated that he feels a response to Enclosure 2 of our September 21, 1979 letter concerntng a request for information on AFM system flow requirements is unnecessary in view of the already performed AFW system review. We disagree and it is our position that the licensee respand to expeditiously.