ML20202J171

Requests Addl Info within 30 Days Re Evaluation of Role & Ability of Operators to Perform Mitigating Actions Following High Energy Line Break Accident,In Response to 860222 Discussion,Re Equipment Qualification Program

ML20202J171
Person / Time
Site:	Fort Saint Vrain
Issue date:	04/06/1986
From:	Heitner K Office of Nuclear Reactor Regulation
To:	Walker R PUBLIC SERVICE CO. OF COLORADO
References
TAC-61894, NUDOCS 8604150563
Download: ML20202J171 (4)

Text

>, .

I meg 0

~, UNITED STATES

[\ ' ,g NUCLEAR REGULATORY COMMISSION O* ,

?

j WASHINGTON, D. C. 20555 o.,

V #,a April 6, 1986

+.**+

Docket No. 50-267 Mr. R. F. Walker, President Public Service Company of Colorado Post Office Box 840 Denver, Colorado 80201-0840

SUBJECT:

ROLE OF OPERATORS IN MITIGATING HIGH ENERGY LINE BREAKS AT FORT ST. VRAIN At a meeting with your staff held February 22, 1986 on the Fort St. Vrain (FSV) equipment qualification (EQ) program, we. discussed the role of the operators in mitigating the effects of high energy line break (HELB) accidents. In particular, we discussed the requirements for the operators to take local manual actions following the HELB.

As a result of these discussions we have determined that the role of the operators needs clarification. We understand that operators would have to take local manual actions following certain HELBs. During these actions, the operators could potentially be exposed to high temperature environments.

Therefore, we request that you provide the following information within 30 days of the date of this letter.

1. List and briefly describe local manual actions that would be taken by the operators following an HELB accident or equivalent primary coolant leak.

2. Provide an evaluation of the ability of the operators to perform these actions in potentially high temperature environments. This evaluation should address the same factors covered in approving FSV operation at 35 percent power. (Please see our letter dated February 7, 1986, Enclosure 5, Confirmatory Action 12.)

3. If future modifications to the plant are contemplated that affect this issue, please describe these modifications and your proposed schedule for their completion.

8604150563 860406 7 DR ADOCK 0500

r l l

l i l

.  ! If you have any questions concerning this issue, please contact me at (301) 492-8288.

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

k.  %

i Kenneth L. Heitner, Project Manager i Standardization and Special Projects Directorate Division of PWR Licensing-B  ;

cc: See next page  ;

I 1 s 4

i s

l Mr. R. F. Walker '

i Public Service Company of Colorado Fort St. Vrain j 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 Fublic 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, Colorado 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 a

U.S. Nuclear Regulatory Commission Office of Executive Director for Operations 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Chairman, Board of-County Commissioners of Weld County, Colorado Greeley, Colorado 80631 l

Regional Representative Radiation Programs Environmental Protection Agency 1800 Lincoln Street Denver, Colorado 80203 i

1

F

/

April 6, 1986 If you have any questions concerning this issue, please contact me at (301) 492-8288.

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

original signed by Kenneth L. Heitner, Project Manager Standardization and Special Projects Directorate Division of PWR Licensing-B cc: See next page DISTRIBUTION:

iDocket File

'SSPD' Riailini NRC PDR DCS NSIC PNoonan CHinson KHeitner Olynch HBerkow PSchemanski JCalvo OELD r 0i

SSPD M$

'DPWRL-B:SSPD Dl W f

-B:SSPD DPW' :SSPD Ob8 DPWRL-B:PEICSB ELD Pc

/

n KHeitner:ac Olyn9h HB OParr N

/

M 86 03/ r//86 03/ff/86 03/)}/86 03/3//86 '/o//86 fl 9 hLA<dW mat'