ML19331C917

Responds to IE Bulletin 80-15, Possible Loss of Emergency Notification Sys (ENS) W/Loss of Offsite Power. Suggests NRC Contract Mountain Bell Re Testing of ENS Extension

ML19331C917
Person / Time
Site:	Fort Saint Vrain
Issue date:	06/30/1980
From:	Millen C PUBLIC SERVICE CO. OF COLORADO
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
IEB-80-15, P-80190, NUDOCS 8008200108
Download: ML19331C917 (3)

Text

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June 30, 1980

_ Fort St. Vrain Unit No. 1 P-80190 Mr. Karl V. Seyfrit U. S. Nuclear Regulatory Commission Region IV Office of Inspection and Enforcement 611 Ryan Plaza Drive Suite 1000 Arlington, Texas 76012 Docket No. 50-267

SUBJECT:

IE Bulletin 80-15

Dear Mr. Seyfrit:

With regard to IE Bulletin 80-15, dated June 18,

1980, our investigation indicates that Fort St. Vrain is incorrectly listed on Enclosure 2, " Facilities with ' Hotline' Using On-Site Power", rather then Enclosure 1, " Facilities with ' Hotline' Power by Local Telephore Company".

Since your bulletin does not specify licensee response for facilities listed on Enclosure 1, we have prepared responses numbered to correspond to the " Actions To Be Taken By All Licensees", as follows:

NRC Action 1.

Within 10 days of the date of this Bulletin, verify by direct inspection, in conjunction with the appropriate teTephone company *oNsentative, that the ENS at your facility is powered in the manner described in the two enclosures.

PSC Response We are advised by a representative of Mountain Bell that your ENS at our facility receives its total power requirements from the Central Office of Mountain Bell Tocated in Platteville, Colorado, 3 1/2 miles southeast of Fort St.

Vrain.

The power is from the local commercial supply system, with emergency battery-fed backup in the event that commerical power is temporarily interrupted.

The operation of your ENS in no way is affected by availability of the Fort St. Vrain Station power system.

Commercial power in Platteville is supplied by Union REA Incorporated, 18551 East 160th Avenue, Brighton, Colorado.

8008200 / O E

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. NRC Action 2.

Those facilities which have station packages requiring on-site power, but which are not connected to a

safeguards instrumentation bus which is backed up by batteries and an inverter or ' equally reliable power

supply, shall make necessary modifications and provide such a connection.

PSC Resoonse Not applicable to Fort St. Vrain; see response to NRC Action Number 1 for re ;on.

NRC Action 3.

All facilities are to develop and conduct a test, within 60 days of the issuance of this Bulletin, to verify that al

.yo.l.. extensions of @e. ENS Jocated at.y'our.. facility (ies)'....;.

..a u.-

.m uld9ehikin 'f0 lyipeVable frein tihe facility (ies) t'o '

~

the NRC Operations Center in the event of a loss of off site. power.to your facil..ity(.ies)

.Thi s 1.s.not intended

.to. mean.that.an. actual loss.of.off site power be

. executed.

PSC Response We have no authority to conduct such a test nor do we know of any such test which we could feasibly perfo rm.

i Since the operation of the power system for supplying your ENS is under the control of Mou.ntain Bell, we recommend you contact their Customer Services Manager at-1015 9th Avenue, Greeley, Colorado, or telephone (303) 356-8005.

NRC Action 4.

If it is determined that a station package requiring on-site power is not connected to a

safeguards instrumentation' bus backed up by automatic transfer to batteries and an inverter or an equally reliable power

supply, notify the NRC Cperations Center via the ENS within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after such determination.

PSC Response Not applicable to Fort St. Vrain.

l

3-

~NRC Action - -

5.

Prepare and issue an administrative procedure or directive which requires notification to the NRC Operations Center by commercial telephone or relayed message within one hour of the time that one or more extensions of the ENS located at your facility (ies) is subsequently found to be inoperable for any reason.

'PSC.Resb'nse o

T,he dire.ctive,you request.has..been. issued in.the f.orm of..

an operations order, and is currently in effect.

NRC Action 6 '.

Provide a written report, within 75 days of the issuance of this Bulletin, describing the result of the reviews c.e., required., by. item. 1.uxt. 2. abov.e,.-:the results.of.the

' testing requ' fred by item 3, and the procedures required by item 5.

RSC Response -

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By submi.t;tal of this letter, we have complied with your request.

If. you have' any.-further questions, please. contact Mr. Waremb'ourg at.

Fort St. Vrain (303) 571-7436.

l Very gr.:

ours, l

C. K. Millen CKM/alk i

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