ML20214T995

Forwards Preliminary Safety Evaluation Re LER 50-267/86-017. Events Noted in LER Raised Concerns About Sensitivity of Helium Circulation Sys to Offsite Grid Transients.Status Rept Should Be Submitted to Address Concerns within 60 Days

ML20214T995
Person / Time
Site:	Fort Saint Vrain
Issue date:	09/26/1986
From:	Heitner K Office of Nuclear Reactor Regulation
To:	Robert Williams PUBLIC SERVICE CO. OF COLORADO
Shared Package
ML20214T997	List: ML20214T995 ML20214U013
References
TAC-61491, NUDOCS 8609300463
Download: ML20214T995 (3)

See also: IR 05000267/1986017

Text

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September 26, 1986

Docket No. 50-267

Mr. R. O. Williams, Jr.

Vice President, Nuclear Operations

Public Service Company

of Colorado

P. O. Box 840

Denver, Colorado 80201-0840

Dear Mr. Williams:

SUBJECT: FORT ST. VRAIN - LICENSEE EVENT REPORT 86-017

We have followed the events reported by you in Licensee Event Report (LER)

No. 50-267/86-017 submitted by your letter dated May 3, 1986 (P-86349). This

LER was subsequently evaluated by Oak Ridge National Laboratory (0RNL) under

contract to the NRC Office for Analysis and Evaluation of Operational Data.

We have reviewed ORNL's evaluation and concluded that these events raise

concerns about the sensitivity of Fort St. Vrain's helium circulation system to

off-site grid transients. A copy of our preliminary safety evaluation on these

events is enclosed.

As a result of our preliminary evaluation, the staff concludes that a more

formal review of your actions to resolve this problem would be desirable.

Therefore, you are requested to provide us with a status repo:t on actions

taken to correct the problems reported in LER No. 50-267/86-017. This status

report should address the concerns raised in our preliminary evaluation and be

provided within 60 days of the date of this letter.

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

8609300463 8609 g Standardization and Special

PDR ADOCK OS00 PDR Projects Directorate

S Division of PWR Licensing-B

Office of Nuclear Reactor Regulation

. Enclosure:

As stated

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. . . . ,*# September 26, 1986

Docket No. 50-267 l

Mr. R. O. Williams, Jr.

"

Vice President, Nuclear Operations

Public Service Company

of Colorado

P. O. Box 840

Denver, Colorado 80201-0840

Dear Mr. Williams:

SUBJECT: FORT ST. VRAIN - LICENSEE EVENT REPORT 86-017

i

We have followed the events reported by you in Licensee Event Report (LER)

No. 50-267/86-017 submittedbyyourletterdatedMay3,1986(P-86349). This

, LER was subsequently evaluated by Oak Ridge National Laboratory (0RNL) under

j contract to the NRC Office for Analysis and Evaluation of Operational Data.

We have reviewed ORNL's evaluation and concluded that these events raise

concerns about the sensitivity of Fort St. Vrain's helium circulation system to

off-site grid transients. A copy of our preliminary safety evaluation on these

.

events is enclosed.

As a result of our preliminary evaluation, the staff concludes that a more

j formal review of your actions to resolve this problem would be desirable.

'

Therefore, you are requested to provide us with a status report on actions

taken to correct the problems reported in LER No. 50-267/86-017. This status

report should address the concerns raised in our preliminary evaluation and be

provided within 60 days of the date of this letter.

The information requested in this letter affects fewer than 10 respondents;

therefore OMB clearance is not required under P.L.96-511.

- Sincerely,

d hv$ h)

Kenneth L. Heitner, Project Manager

Standardization and Special

Projects Directorate

Division of PWR Licensing-B

Office of Nuclear Reactor Regulation

Enclosure:

As stated

cc w/ enclosure:

See next page

____-________ _

.

-Mr. R. O. Williams

. 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

Den'er,

v 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

Platteviile, 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 Public Service Company of Colorado

Denver, Colorado 80201 16805 Weld County Road 19-1/2

Platteville, Colorado 80651

Senior Resident Inspector -

U.S. Nuclear Regulatory Commission Mr. R. F. Walker

P. 0. Box 840 Public Service Company of Colorado

Platteville, Colorado 80651- Post Office Box 840

Denver, Colorado 92138

Kelley, Stansfield & 0'Donnell

-

Public Service Company Building Commitment Control Program

Room 900 Coordinator

550 15th Street Public Service Company of Colorado

Denver, Colorado 80202 2420 W. 26th Ave. Suite 100-D

.

Denver, Colorado 80211

!

Regional Administrator, Region IV

U.S. Nuclear Regulatory Commission

l 611 Ryan Plaza Drive, Suite 1000

,

Arlington, Texas 76011

l Chairman, Board of County Commissioners

,

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