ML20099F363
| ML20099F363 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 08/06/1992 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20099F360 | List: |
| References | |
| NUDOCS 9208130013 | |
| Download: ML20099F363 (2) | |
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SAFETY EVALUATION'BY THE OFFICE OF NUCLEAR-REACTOR REGULATION
' RELATED T0 ' AMENDMENT NO.' 7 2 TO FACILITY OPERATING LICENSE NO. DPR-80 I
, !AND AMENDMENT NO. 71 TO FACILITY OPERATING LICENSE NO. DPR-82
~ PACIFIC GAS AND ELECTRIC COMPANY DIABLO CANYON NUCLEAR POWER PLANT. UNITS 1 AND 2 u
DOCKET NOS. 50-275 AND 50-323
1.0 INTRODUCTION
' By letter Lof February 4,1992, Pacific Gas and Electric Company-(or_ the
' licensee) submitted a request for; changes to the Technical Specifications (TS). iThe: proposed amendments would revise:TS 2.2, 3/4.1.1, 3/4.1.2, 3/_4.1.3, 3/4.2.5,83/4.3.1, 3/4.3.2','3/4.4.2, 3/4.5.1, 3/4.5.2, 3/4.5.4,-3/4.7..,
3/4.9.lf and 3/4:10.1 by. making administrative changes to remove cycle specific'information that -isino longer necessary and to correct Table 3.3 -
notations.1 1
2LO ~ EVALUATION:
JThe' current-DCPP Units-1 and 2 Technical Specifications (TS) contain information-that:is cycle specific, Because_both: units are-in Cycle 5,-
' references'-to-previous cycles are; outdated and thus no longerLyalid.
Since the deletion of the_ outdated : cycle s'pecific information. is an administrative-Jchange andcwould thereforeLhave _no effection any plant systems:or the safe
- operation;of DCPP,-the' proposed changes are not considered to have any. safe.ty ysignificance.aThe changes, would, however, clarify the TS by removing C
extraneous information; In addition-to removing cycle specific TS items'the licensee-proposes to correctatable: notations-concerning' Table 3.3-5,l" Engineered Safety _ Features
- Response: Times," which provides required response times-for lvarious-initiating signals. The proposed changes to:the -Table 3.3-5. notations reflect current-operating conditions-:at-DCPP. The table _ notation changes were intended to be madeias part of-AmendmentsL511and 50, but due to'an administrative error;by Lthe: licensee,;; the changeCwere omitted.- The' justification' and safety analysis-
)
concerning the initiating signal. and function: response times for the Lcontainment pressureihigh, phase 'A': isolation component cooling water, and
-auxiliary 2 salt. water pump response times: determined that these parameters are not subject to.the time delays' associated with the sequential transfer of
- charging pumptsuction from the volume control tank (VCT) to the refueling water storage tanki(RWST).
- In -addition, the initiating signal and-function
- .responsettime:for containment pressure high, auxiliary feedwater, and 9208130013 920FIO6
- PDR "ADOCK 05000275 e 1
P, pop
=> i containment fan cooler unit response times include the diesel generator i
starting and loading time delays.
By including the diesel generator starting and loading time delays the DCPP TS will be consistent with current DCPP surveillance' testing requirements.
Based on the above, the. staff finds the proposed changes to remove outdated cycle specific information and correct Table 3.3-5 notations are ac;eptable.
3.0 STATE CONSULTATION
in accordance with the Commission's regulations, the California State official was notified of the proposed issuance of the amendments.
The Stah official had no comments.
4.0 LNVIRONMENTAL CONSIDERATION
'These amendments change a requirement with respect to the installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20 and changes surveillance requirements.
The NRC staff has determined that the amendments involve no significant increase in the amounts, and no significant _ change in the types, of any effluents that may be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposure.
The Commission has previously issued a proposed finding that the amendments involve no significant hai.ards considera-tion, and there has been no public comment on such finding (57 FR 13136).
Accordingly, the amendments meet the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9).
Pursuant to 10 CFR 51.22(b) no envirormental impact statement or environmental assessment need be prepared in connection with the issuance of the amendments.
5.0 CONCLUSION
The Commission has concluded, based on the considerations discussed above, that (1) there is reasonable assurance that the health and safety of the
'public will not be endangered by operation in the proposed manner, (2) such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendment will not be inimical to the common defense and security or to the health and safety of the public.
Principal Contributors:
C. Regan H. Rood Date:
August 6, 1992 l
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