ML20246J279

Forwards Safety Evaluation Concluding That Operators Role in Mitigating High Energy Line Break at Facility Acceptable. Technical Evaluation Rept Also Encl

ML20246J279
Person / Time
Site:	Fort Saint Vrain
Issue date:	07/07/1989
From:	Heitner K Office of Nuclear Reactor Regulation
To:	Robert Williams PUBLIC SERVICE CO. OF COLORADO
Shared Package
ML20246J287	List: ML20246J279 ML20246J313 ML20246J319
References
TAC-61894, NUDOCS 8907170328
Download: ML20246J279 (3)

Text

._

July 7, 1989 Docket No. 50-267 Mr. R. O. Williams, Jr.

Senior..Vice President, Nuclear Operations Public Service Company of Colorado Post Office-Box 840 Denver, Colorado 80201-0840

SUBJECT:

OPERATOR'S ROLE IN MITIGATING A HIGH ENERGY LINE BREAK (TAC NO. 61894)

The staff has completed its review of your submittels dated June 26, 1986, January 15 and March 31, 1987, and December 9, 1988, concerning the role of the operators in mitigating _ high energy line breaks (HELBs) at Fort St. Vrain.

This review involved several rounds of questions by the staff, concerning both technical and human factors aspects of this problem. Our safety Evaluation is enclosed (Enclosure'1).

Part of this review was performed by our contractor, Idaho National Engineering Laboratory (INEL). INEL's technical cyaluation report is enclosed. Based on the staff's and INEL's review, we have concluded that the operator's role in responding to HELBs is. acceptable.

Sincerely,

/s/

Kenneth L. Heitner, Project Managcr Project Directorate - IV Division of Reactor Projects - III, IV, Y and Special Projects Office of Nuclear Reactor Regulation

Enclosures:

DISTRIBUTION:

As stated !Jocket File & NRC PDR

'" PD4' Reiding Local PDR cc w/ enclosure: P. Noonan OGC See next page K. Heitner ACRS(10)

FHebdon PD4 Plant File L. Rubenstein B. Grimes E. Jordan W. Regan, HFAB PD4/LA L PD4/PH M -

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PNooha KHeitner:bj a FHebd 06[])89 06/u/89 0 /g /89 06/so/89 I

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July 7,1989 Docket: No. 267 -

Mr. R. 0. Williams, Jr. .

Senior Vice President, Nuclear Operations.

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

SUBJECT:

OPERATOR'S ROLE IN HITIGATING A HIGH E'ERGY N LINE BREAK-(TAC KO. 61894)

The staff has ccrrpleted its review of your submittals dated June 26, 1986, January 15 and March 31, 1987, and December 9, 1988, concerning the role of the operators in mitigating high energy-line breaks (HELBs) at Fort St. Vrain.

.This review _ involved ceveral rounds of questions by the staff, concerning both technical and hurr.an factors aspects of this problem. Our Safety Evaluation is enclosed -(Enclosure 1).

Part of this review was performed by our contractor, Idaho National Engineering Laboratory (INEL). INEL's technical evaluation report is enclosed. Based on the staff's and INEL's review, we have concluded that the cperator's role in respending to HELBs-is acceptable.

Sincerely, b, Ob u Kenneth L. Heitner, Project Manager Project Directorate - IV Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation

Enclosures:

As stated cc w/ enclosure:

See next page u _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __

nj

4 Mr. R. O. Williams, Jr.

Public Service Company of Colorade Fort St. Vrain cc:

Nr. D. W. Warembourg, Manager Aloert J. Hazle, Directer 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 80201-0840 Mr. David Alberstein, hanager Mr. Charles H. Fuller Fort St. Vrain Ser, ices Manager, Nuclear Production GA International Services Corporation and Station Manager Post Office Box 85608 Public Service Company of Colorade San Diego, California 92138 16805 Weld County Road 19-1/2 Platteville, Colorado 80651 Mr. H. L. Drey, Manager Nuclear Licensing and Resource Mr. P. F. Tomlinson, Manager fianagement Division Quality Assurance Division Public Service Company of Colorado Public Service Company of Colorado P. O. Box 840 16805 Weld County Road 19-1/2 Denver, Colorado 80201-0840 Platteville, Colorado 80651 Senior Resident Inspector Mr. D. D. Hock U.S. Nuclear Regulatory Connission President and Chief Executive Officer P. O. Box 640 Public Service Cornpany of Colorado Platteville, Colorado 80651 Post Office Box 840 Denver, Colorado 8C201-0840 Kelley, Standfield & 0'Donnell ATTN: Mr. J. K. Tarpey Commitment Control Program Public Service Company Building Coordinator Room 900 Public Service Company of Colorade 550 15th Street 2420 W. 26th Ave. Suite 100-D Denver, Colorado 80202 Denver, Colorado 80211 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Chairman, Board of County Connissioners of Weld County, Colorado Greeley, Colorado 80631 Regional Representative Radiation Programs Environmental Protection Agency 1 Denver Place 999 18th Street, Suite 1300 Denver, Colorado 80202-2413 l

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