GO2-92-125, Responds to Telcon W/Wm Dean Re 901231,911015 & 920410 Applications for Amend to License NPF-21 Re Scram Discharge Vol Setpoints,Rcic Actuation Instrumentation & Surveillance Requirements & Generic Ltr 88-01,respectively
| ML17289A575 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 05/20/1992 |
| From: | Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML17289A576 | List: |
| References | |
| GL-88-01, GL-88-1, GO2-92-125, NUDOCS 9205290190 | |
| Download: ML17289A575 (6) | |
Text
ACCELERATED DISTRIBUTION DEMONS l
e TION SYSTEM REGULATORY XNFORMATXON DISTRIBUTION SYSTEM (RIDS)
ACCESSXON NBR:9205290190 DOC.DATE: 92/05/20 NOTARIZED:
NO DOCKET FACIL:50-397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 05000397 AUTH.NAME AUTHOR AFFILIATION SORENSEN,G.C.
Washington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Responds to a telecon conversation w/W Dean concerning TS Amend request submitted by References.
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WASHINGTONPUBLIC POWER SUPPLY SYSTEM P.O. Bm968 ~ 3000George Wasbtngton Way ~ Richland, Wasbtngton 99352-0968
~ (509)372-5000 May 20, 1992 G02-92-125 Docket No. 50-397 U.S. Nuclear Regulatory Commission Attn:
Document Control Desk Washington, D.C.
20555 Gentlemen:
Subject:
WNP-2, OPERATING LICENSE NPF-21 EDITORIAL AND BASES CHANGES TO REQUESTS FOR AMENDMENT TO TECHNICAL SPECIFICATIONS
References:
a)
Letter G02-91-085 dated April 10,
- 1992, GC Sorensen (SS) to
- NRC, "Request for Amendment to Technical Specifications in Accordance with Generic Letter 88-01" b)
Letter G02-91-188 dated October 15,
- 1991, GC Sorensen (SS) to NRC, "Request for Amendment to Technical Specification 3/4.3.5 and Tables 3.3.5-1 8 4.3.5. 1-1 RCIC Actuation Instrumentation and Surveillance Requirements" c)
Letter G02-90-209 dated December 31, 1990, GC Sorensen (SS) to NRC, "Request for Amendment to Technical Specifications, Scram Discharge Volume Setpoints" This letter is in response to a telephone conversation with Mr.
W.
M. Dean, of your staff, concerning the Technical Specification Amendment requests submitted by the References.
After discussions with the technical
- reviewer, Mr.
Dean decided that the Supply System should make some changes to the original requests.
The changes shown in Attachment 1, indicate which changes have been made to the original request in Reference a).
The first change involves further clarifica-tion of the time limit imposed on the restriction of the increase in UNIDENTIFIED LEAKAGE.
The second
- change, to the Bases, specified an accuracy in addition to the sensitivity requirements to any alternative method used to measure containment sump flow.
920M90190,960520 PDR ADOCK'05000397 P
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~ Page two EDITORIAL AND BASES CMANGES TO REQUESTS FOR AMENDMENT TO TECHNICAL SPECIFICATIONS Reference b) requested Technical Specification changes to RCIC allowed outage times (AOTs) and surveillance intervals (SIs) based on analyses performed by General Electric for the Boiling Water Reactor Owner's Group.
The analyses were referred to by Reference b) to support the requested changes.
As identified by Hr.
- Dean, the Supply System endorsed GE topical report (GENE-770-06-2) in the reference but did not specifically state that the analyses and conclusions of the topical report applied to WNP-2.
This was an oversight by the Supply System and a statement confirming applicability of GENE-770-06-2 to WNP-2 should have been made in Reference b).
Accordingly, the Supply System hereby confirms that the analyses and conclusions of GENE-770-06-2 are applicable to WNP-2 and support the Reference b) requested changes to the WNP-2 Technical Specifications.
Reference c) requested changes to Scram Discharge, Volume (SDV) Trip Setpoint and Allowable Values based on more accurate grade/elevation surveys completed as a
result of plant modification.
Calibrating the instruments to the previous values did not allow adequate instrument adjustment and as a result, a
change was requested to accommodate the span of the instruments.
Included with this change request was a proposed rewording of the Bases to more accurately indicate the margin available in the SDVs at the alarm, rod block and scram setpoints.
The proposed bases stated that the margin at the rod block setpoint was 77.2 gallons.
A recent review of this request has identified this value as being in error and should have been 89.6 gallons.
As a result, the Supply System requests that the change to the Bases proposed by Reference c) be changed to reflect 89.6 gallons margin at the rod block setpoint as shown in Attachment 2.
Attachment 3 to this letter is an editorial change to be made to the Index.
Because of the editorial nature of the
- changes, no additional'valuation in accordance with 10 CFR 50.92 is included.
Sincerely, G.
C. Sorensen, Manager Regulatory Programs (Hail Drop 280)
HGE/PLP/bk Attachments CC:
JB Hartin'-'RC RV NS Reynolds
- Winston 8 Strawn WH Dean NRC DL Williams - BPA/399 NRC Site Inspector
- 901A
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