ML20212C330
| ML20212C330 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 10/24/1997 |
| From: | Sorensen J NORTHERN STATES POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TAC-M98944, TAC-M98945, NUDOCS 9710290171 | |
| Download: ML20212C330 (3) | |
Text
______ --___ _ _ _ _ _ _ _ _
'e Northern States Power Company l
Prairie Island Nuclear Generating Plant 1717 Wakonade Dr. East Welch, Minnesota 5'A89 October 24,1997 I
U S Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket Nos. 50-282 License Nos. DPR-42 50-306 DPR-60 Supplement to License Amendment Request Dated May 15,1997 incorporation of Voltage Based Steam Generator Tube Repair Criteria (TAC Nos. M98944 and M98945)
This letter provides a supplement, in the form of a proposed License Condition, to our License Amendment Request Dated May 15,1997 which proposed changes to Section l
4.12 of the Prairie Island Technical Specifications that would allow the use of voltage-based steam generator tube repair criteria.
In response to discussions with the NRC Staff, Northern States Power Company proposes that the following commitment be issued as a condition to the Prairie Island Unit 1 and 2 Licenses:
NSP will assure that during the implementation of steam generator repairs utilizing the voltage based repair criteria, the total calculated primary to secondary side leakage from the faulted steam generator, under main steam line break conditions (outside containment and
/{p'"3['}I/
upstream of the main steam isolation valves), will not exceed 1.42 gallons per minute (based on a reactor coolant system temperature of 578F).
A revised Safety Evaluation, Significant Hazards Determination and Environmental Assessment have not been submitted for the License Condition proposed by this supplement since those evaluations, as originally presented in the May 15,1997 License Amendment Request, continue to bound the proposed license amendment as revised by this supplement. The original evaluations are considered bounding because the proposed License Condition will impose more restrictive requirements on the
\\Il.l$\\.\\$,\\$l,!!!.!I!!!.$!.!$!!!$
9710290171 971024 PDR ADOCK 05000282 P
..vuv v
USNRC NORTHERN STATES POWER C:MPANY
'Detober'24,1997 e
Page 2 l
allowahle primary to secondary system leakage than were originally proposed by the May 15,1997 License Amendment Request. The proposed License Condition does not impact the repair methodology described in the May 15,1997 License Amendment Request.
{
1 Please contact Gene Eckholt (612-388-1121) if you have any questions related to this supplement.
Joel P Sorensen Plant Manager Prairie Island Nuclear Generailng Plant c: Regional Administrator - Region Ill, NRC Senior Resident inspector, NRC NRR Project Manager, NRC J E Silberg
Attachment:
[
UNITED STATES NUCLEAR REGULATORY COMMISSION NOrJHERN STATES POWER COMPANY PRAIRIE ISLAND NUCLEAR GENERATING PLANT DOCKET NO,50 282 50-306 SUPPLEMENT TO REQUEST FOR AMENDMENT TO OPERATING LICENSES DPR-42 & DPR-60 LICENSE AMENDMENT REQUEST DATED May 15,1997 Northern States Power Company, a Minnesota corporation, by this letter dated October 24,1997, provides a supplement to a License Amendment Request dated May 15, i
1997.
This letter contains no restricted or other defense information.
i NORTHERN STATES POWER COMPANY By (Joel P Sore'nsen Plant Manager Prairie Island Nuclear Generating Plant h
On this-day of 3
efore me a notary public in and for said County, personally appeared Joel P or sen, Pipt Manager, Prairie Island Nuclear Generating Plant, and being first duly sworn acknowledged that he is authorized to execute this document on behalf of No,thern States Power Company, that he knows the contents thereof, and that to the best his knowledge, information, and belief the sta megis made in it are t an not interposed for delay.
)
wywy.yvvyVVVT Y
- ~"
NOTARY M.'3UC4ANNESOTA HENNEPW COUNTY WW.W.$8N i
swv--
m w-we-
,,,-,-.y-
,.,?