ML20151E066

Concurs W/Util 871210 Justification That Parameters Meet Intent of Reg Guide 1.97.Based on Review of Encl Rev 2 to Technical Evaluation Rept EGG-NTA-7079,concludes That Util Design for Pressurizer Level & Heater Status Acceptable

ML20151E066
Person / Time
Site:	Three Mile Island
Issue date:	07/15/1988
From:	Hernan R Office of Nuclear Reactor Regulation
To:	Hukill H GENERAL PUBLIC UTILITIES CORP.
Shared Package
ML20151E069	List: ML20151E066 ML20151E087
References
RTR-REGGD-01.097, RTR-REGGD-1.097 TAC-51361, NUDOCS 8807250357
Download: ML20151E066 (3)

Text

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y,y .. July 15,1983 Docket No. 50-289 Mr. Henry D.- Hukill, Vice President and Director - TMI-1 GPU Nuclear Corporation P. O. Box 480 Middletown, Pennsylvania 17057

SUBJECT:

TMI-1 REGULATORY GUIDE 1.97 OPEN ITEMS (TAC #51361) .

The NRC issued a Safety Evaluation Report (SER) on August 24, 1987 to document its review of compliance at TMI-1 with Regulatory Guide 1.97 "Instrumentation for Light Water-Cooled Nuclear Power Plants to Assess Plant and Environs Conditions During and Following an Accident". The SER listed six parameters for which GPU Nuclear had not demonstrated compliance with R.G.1.97 or had not provided adequate justification for deviating from R.G.1.97. GPU Nuclear

.provided additional information in support of its position on pressurizer level, pressurizer heater status and heat removal by the containment fan heat removal system in a letter dated December 10, 1987.

The NRC staff has reviewed your December 10, 1987 submittal and concurs with the justification that the above parameters meet the intent of R.G.

1.97. This letter transmits the staff's supplemental SER which documents the results of our review. The supplemental SER also noted the fact that acceptability of accumulator tank level and pressure and containment sump water temperature indications is pending a generic review by the staff.

Sincerely, MM O B?f' Ronald W. Hernan, Senior Project Manager Project Directorate I-4 Division of Reactor Projects I/II

Enclosures:

1. Supplemental SER

2. E.G A G-Idaho TER cc w/ enclosures 8807250357 G80715 see next page fDR ADOCK 05000209 PNU 1

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, l The staff, however, is still in the process of generically reviewing the need for environmentally qualified Category 2 instrumentation to monitor accumulator tank level and pressure. We will, therefore, report on the acceptability of this item when the generic review process is complete.

3.0 CONCLUSION

Based on the staff's review of the enclosed TER and the licensee's submittals, we find that the Three Mile Island Nuclear Station Unit No. I design for the pressurizer level, pressurizer heater status, and heat removal by the containment fan heat removal system, is acceptable with respect to conformance to R.G. 1.97, Revision 3.

The acceptability of instrumentation for accumulator tank level and pressure will remain open pending the outcome of the staff's generic review of the need for environrnentally qualified Category 2 instrumentation to monitor this variable.

We will therefore report on the acceptability of this issue when ths generic review process is complete.

Principal Contributor: B. Marcus Dated: July 15,1983 4

y Mr. Henry D. Hukill Three Mile Island Nuclear Station, GPU Nuclear Corporation Unit No I cc:

G. Broughton Richard Conte O&M Director, TMI-1 SeniorResidentInspector(TM1-1)

GPU Nuclear Corporation U.S.N.R.C.

Post Office Box 480 Post Office Box 311 Middletown, Pennsylvania 17057 Middletown, Pennsylvania 17057 Richard J. McGoey Manager, PWR Licensing Regional Administrator, Region I GPU Nuclear Corporaticn

• U.S. Nuclear Regulatory Connission 100 Interpace Parkway 475 Allendale Road Parsippany, New Jersey 70754 King of Prussia, Pennsylvania 19406 C. k'. Smyth . Robert B. Borsurr TMI-1 Licensing Manager Babcock & Wilcox GPU Nuclear Corporation Nuclear Power Generation Civision Post Office Box 480 Suite 525-Middletown, Pennsylvania 17057 1700 Rockville Pike Rockville, Maryland 20852 Ernest L. Blake, Jr., Esq. Governor's Office of State Planning Shaw, Pittrnan, Potts & Trowbridge and Developtrent 2300 N Street, N.W. ATTN: Coordinator, Pennsylvania Washington 0.C. 20037 State Clearinghouse Post Office Fox 1323 Harrisburg, Pennsylvania 17120 Larry Hochendoner Thomas M. Gerusky, Director Dauphin County Cont,issioner Bureau of Radiation Protection Dauphin County Courthouse Pennsylvania Department cf Front and Market Streets Environtrental Resources Harrisburg, Pennsylvania 17120 Post Office Box 2063 Harrisb,urg, Pennsylvania 17120 David D. Maywell, Chairrnan Docketing and Service Section Board of Supervisors Office of the Secretary Londonderry Township U.S. Nuclear Regulatory Comission RFDil l - Geyers Church Road Washington, D.C. 20555 Middletown, Pennsylvania 17057

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