ML20155F161

Forwards Revised Schedule for Completion of 851227 Commitments Re CRD Mechanisms,Masonry Walls & Shipment of Spent Fuel & Safety Evaluation.Summary Rept of Operation at Up to 35% Full Power Requested

ML20155F161
Person / Time
Site:	Fort Saint Vrain
Issue date:	04/15/1986
From:	Heitner K Office of Nuclear Reactor Regulation
To:	Walker R PUBLIC SERVICE CO. OF COLORADO
Shared Package
ML20155F164	List: ML20155F161 ML20155F167
References
NUDOCS 8604210378
Download: ML20155F161 (6)

Text

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1 i April 15, 1986 7-iDocket No. 50-267 4

Mr. R. F. Walker, President

~

.Public Service Company of Colorado

' Post Office Box 840 Denver, Colorado 80201-0840

SUBJECT:

PUBLIC SERVICE COMPANY OF COLORADO COMMITMENTS RELATED TO THE OPERATION OF THE FORT ST. VRAIN NUCLEAR GENERATING STATION

-We have reviewed your submittal dated December 27,1985,(P-85485)concerning some of your commitments related to the operation of Fort St. Vrain (FSV).

These comitments concerned.FSV's control rod drive mechanisms, (CRDMs) masonry

-walls, and shipment of spent fuel. Our evaluation of your proposed changes to your schedules for completing these commitments concludes that their delay in completion is acceptable. We have, accordingly, revised the schedule (Enclosure 1) for your commitments (previously issued by our letter dated February 4, 1986). Our detailed evaluation of these changes is also enclosed (Enclosure 2).

We have discussed with your staff the importance of incorporating the operational experience from current plant operation at up to 35 percent of

. full power into the development of a long-term surveillance program for the CRDMs. We request that you provide a sumary report for this operation concerning your observations on the CRDMs. This should include data on CRDM temperatures, helium flow to the CRDM penetrations, and initial accelerations of the CRDMs in surveillance testing. We request that you provide this summary report within 45 days after current plant operation is completed on May 31, 1986.

The information requested in this letter'affects fewer than 10 respondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely, original signed by Kenneth L. Heitner, Project Manager Standardization and Special Projects Directorate Division of PWR Licensing-8, NRR

Enclosures:

As stated 8604210378 860415 cc w/ enclosures:

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April 15, 1986 Docket No. 50-267 Mr. R. F. Walker, President

' Public Service Company of Colorado Post Office Box 840 Denver, Colorado 80201-0840

SUBJECT:

PUBLIC SERVICE COMPANY OF COLORADO COMMITMENTS RELATED TO THE OPERATION OF THE FORT ST. VRAIN NUCLEAR GENERATING STATION We have reviewed your submittal dated Decernoer 27,1985,(P-85485)concerning some of your comitments related to the operation of Fort St. Vrain (FSV).

These comitments concerned FSV's control rod drive mechanisms (CRDMs), masonry walls, and shipment of spent fuel. Our evaluation of your proposed changes to your schedules for completing these comitments concludes that their delay in completion is acceptable. Va have, accordingly, revised the schedule (Enclosure 1) for your commitments (previously issued by our letter dated February 4, 1986). Our detailed evaluation of these changes is also enclosed (Enclosure 2).

We have discussed with your staff the importance of incorperating the operational experience from current plant operation at up to 35 percent of full power into the development of a long-term surveillance program for the CRDMs. We request that you provide a sumary report for this operation concerning your observations on the CRDMs. This should include data on CRDM temperatures, helium flow to the CRDM penetrations, and initial accelerations of the CRDMs in surveillance testing. We request that you provide this summary report within 45 days after current plant operation is completed on May 31, 1986.

The information requested in this letter affects fewer than 10 re;;pondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely,

%A L %L Kenneth L. Heitner, Project Manager Standardization and Special Projects Directorate Division of PWR Licensing-B, NRR

Enclosures:

As stated cc w/ enclosures:

See next page

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Mr. R. F. Walker Public Service Company of Colorado Fort St. Vrain cc:

Mr. D. W. Warembourg, Manager Albert J. Hazle, Director Nuclear Engineering Division Radiation Control Division Public Service Company Department of Health of Colorado 4210 East lith Avenue P. O. Box 840 Denver, Colorado 80220 Denver, Colorado 80201 Mr. David Alberstein, 14/159A Mr. J. W. Gahm, Manager GA Technologies, Inc.

Nuclear Production Division Post Office Box 85608 Public Service Company of Colorado San Diego, California 92138 16805 Weld County Road 19-1/2 Platteville, Colorado 80651 Mr. H. L. Brey, Manager Nuclear. Licensing and Fuel Division Mr. L. W. Singleton, Manager Public Service Company of Colorado Quality Assurance Division P. O. Box 840 Fort St. Vrain Nuclear Station Denver, Colorado 80201 16805 Weld County Road 19-1/2 Platteville, Colcrado 80651 Senior Resident Inspector U.S. Nuclear Regulatory Commission P. 0. Box 640 Platteville, Colorado 80651 Kelley, Stansfield & 0'Donnell Public Service Company Building Room 900 550 15th Street Denver, Colorado 80202 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Chairman, Board of County Commissioners of Weld County, Colorado Greeley, Colorado 80631 Regional Representative Radiation Programs Environmental Protection Agency 1800 Lincoln Street Denver, Colorado 80203

c Revision. 2

]

PUBLIC SERVICE COMPANY OF COLORADO C0fel!TMENTS RELATED TO THE OPERATION OF THE FORT ATION j

(FROM NOVEfBER 19,1985 CAL) t

{

Item Commitment Description / Requirement (Reference)

Schedule 1.

Implement a program to maintain CRDM temperature within acceptable limits.

(P-85199 and P-85242) complete (see Item 8) 2.

Provide an improved CROM Surveillance and preventative maintenance program-(P-85199 and P-85242),

Surveillance - 6 which includes consideration of the new bearing performance (P-85201).

months after full power authoriza-1 tion P. Maintenance -

complete

! 3.

Implement a procedure to prevent overdriving of the CROM.

(P-85040) (see 50P 12-01, Issue 15) complete 4.

Implement a procedure to require a reactor shutdown under conditions where CRDM purge flow is lost complete or when high levels of moisture exists in the coolant.

(P-85040)

(see Item 8) 5.

Monitor CRDM temperatures.

(P-85199andP-85242) complete

[

6.

Provide status reports / progress reports on the Nuclear Performances Enhancement Program on a approximately quarterly basis.

(P-85217) every 3 months Implement the Technical Specification (TS) Upgrade Program (P-85098) complete a.

Provide a final draft proposal of the Upgraded TSs for NRC comment.

fP-85243) 90 days after

~

}

b.

Submit a license amendment to incorporate the Upgraded TSs.

(P-85243)

NRC coments on i

Item 7a l

Approximately j

c.

Implement the Upgraded TSs.

(P-85243) the 4th l

Refueling Outage (License Admend-l g

se ment will define) t i

l

7 g!

c.

Revision 2' '.

s, Page 2 PUBLIC SERVICE COMPANY OF COLORADO COW 4ITMENTS RELATED TO THE OPERATION OF THE FORT ST. VRAIN NUCLEAR GENERATING STATION' I

Item Comnitment Description / Requirement (Reference)

Schedule 8.

Improve control rod and reserve shutdown reliability.

complete Propose Technical Specification changes.

(P-85242) complete a.

b.

Implement proposed requirements through interim procedures.

(P-85242)

(seeItem7)

Incorporate the proposed Technical Specifications in the Upgrade Program.

c.

1 i).

Develop a plan to implement approved modifications to control moisture ingress and submit annual reports on progress.

(P-85022 and P-85082)

Annually Report Progress 10.

Centrol moisture in CRDM purge system.

(P-85032) 4th Refueling Outage 11.

Perform environmental requalification testing of a CROM assembly (P-85032) including the C mplete temperature sensor epoxy.

(P-85195) due 0

)

12.

Refine the " watt-meter" test for verification of control rod full insertion or develop an alternative test.

(P-85040 and P-85199) complete l

(see. Item 2)

(3.

Investigate a design change to provide a positive stop to prevent CROM overtravel; report results to the NRC.

(P-85003) complete l

,4.

Ccnduct an integrated systems study to resolve control rod position indication, maintenance and (P-85003) 6/30/86 cperability questions.

.5.

Implement QA Procedure Review Program.

(P-85028) complete l

6.

Liquid Effluent Releases from the Reactor Building Sump

a. Impi m nt procedures to perform all effluent releases from the reactor building sump in batei mode.

(P-85212) complete

b. Investigate installing in-line,1: eta sensitive, effluent monitors and report on progress.

(P-85212) in progress

o i

Revision 2

'E l

Page 3 I

PUBLIC SERVICE COMPANY OF COLORAD0 COMITMENTS_

i i

RELATED TO THE OPERATION OF THE i

FORT ST. VRAIN NUCLEAR GENERATING STATION 1

1 I

i Item Cosuiitment Description / Requirement (Reference)

Schedule 17.

PCRV Tendon Surveillance Requirements

a. Incorporate the revised Tendon Surveillance Program into the Technical Specifications.

(see Item 7)

(P-85199) l

b. Implement the revised program through the use of interim procedures.

(P-85199) complete

c. Provide the results of the revised program to the NRC Approximately Evcry 6 months 18.

Propose modifications in the Emergency Diesel Generator circuit breakers' control circuitry to resolve the independent problem.

(P-85208) complete l

)

19.

Fire Protection Interim Requirements I

a. Implement the special (and interim) repair and operating procedures.

(P-85113andP-85245)

' complete

b. Implement a fire watch program.

(P-85245) complete 20.

Complete the CRDM bearing performance testing and incorporate results Report on into the improved.CROM surveillance and preventative maintenance program

. progress identified in Item 2 above.

(P-85201) quarterly j

t I

I

.