ML17037B567

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Letter Confirming Niagara Mohawks Commitment to Implement a Drywell Pressure Increase of One Pound Per Square Inch Over the Suppression Chamber Pressure
ML17037B567
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 02/27/1976
From: Rhode G
Niagara Mohawk Power Corp
To: Lear G
Office of Nuclear Reactor Regulation
References
Download: ML17037B567 (4)


Text

NRC FORM 195 I2-7S)

U.S. NUCLEAR REGULATORV C IISSION NRC DISTRIBUTION FoR PART 50 DOCKET MATERIAL DOCKET NUMBER 50-220 FILE NUMBER TO:

G. Lear

"" "" Niagara Mohawk Power Co.

Syracuse, N.Y.

G.K.

Rhode DATE OF DOCUMENT 2-27-76 DATE RECEIVED 3-1-76 OLETTER ABORIGINAL OCOPV QNOTORIZED 5 UNC LASS IF IE D PROP INPUT FORM NUMBER OF COPIES RECEIVED DESCRIPTION Ltr. confirming commitment to implement a

drywell pressure increase.......

(1 Sisgned Cy. Received)

ENCLOSURE I

DO NOT REMOVE ACKKOXK PLANT NAME Nine Mile Pt.

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SAFETY FOR ACTION/INFORMATION ENVIRO ASSIGNED AD; BRANCH CHIEF:

PROJECT MANAGER.

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ST Lear lJ 6 ParrCsh ASSIGNED AD BRANCH CHIEF

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PROJECT MANAGER:

LIC~ ASST INTERNAI D ISTRI BUTION NRC PDR OSSICK & STAFF PROJECT MANAGEMENT BOYD P,

COLLINS HOUSTON PETERSON MELTZ HELTEMES SKOVHOLT LpDR swe 0

TIC ASLB EN NEER N KNIGHT SIHNEIL

'AMLICKI REACTOR SAFETY ROSS NOVAK ROSZTOCZY CHECK AT&I SALTZIIAN RUTBERG EXTERNALDISTRIBUTION NATL LAB REG, V"IE LA PDR CONSULTANTS BENAROYA IPPOLITO OPERATING REACTORS STELLO OPERATING TECH ISENHUT HAO AER CHWENCER SITE SAFETY &. ENV R ANALYSIS DENTON & MULLER BROOKHAVEN NATL LAB ULRIKSON(OWL)

ERNST ALLARD SPANGLER SITE TECH GAMMILL STEPP HULMAN SITE ANALYSIS VOLLMER BUNCH J.

COLLINS KREGER CONTROL NUI'ABER 1936 16 NRC FORM 155 I2.76I SE

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NIAGARAMOHAWKPOWER CORPORATION

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MOHAWK 300 ERIE BOULEVARD, WEST SYRACUSE. N. Y. 13202

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5 ggi SecIioa 0~I CIIIK February 27, l976 Director of Nuclear Reactor Regulation Attn:

Mr. George Lear, Chief Branch ¹3 U. S. Nuclear Regulatory Commission Vashington, D. C.

20555 Re:

Nine Mile Point Unit l

.Docket No. 50<<220 DPR-63

Dear Mr. Lear:

This letter is to confirm Niagara Mohawk's commitment, at a February 26, l976 meeting with.the Commission, to implement a

drywell pressure increase.of one pound per square inch over the suppression chamber pressure atNine Mile Point Unit l.

This measure is being taken in order to mitigate containment loads in the unlikely, event of a Loss-of-Coolant Accident.

Nine Mile Point Unit l will be in this new mode of operation by 9:00 a.m.

on March l, l976.

Very truly yours, NIAGARA MOHAWK POWER CORPORATION GERALD RHODE Vice President Engineering

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