ML18038A096

Forwards Figure 1,inadvertently Excluded Form 851018 Submittal Re Shutdown Cooling Sys Instrumentation,Per Section 6.1 of Generic Ltr 82-33 (Suppl 1 to NUREG-0737). Response to Item B.2 Re Neutron Flux Monitoring Revised

ML18038A096
Person / Time
Site:	Nine Mile Point
Issue date:	12/06/1985
From:	Mangan C NIAGARA MOHAWK POWER CORP.
To:	Zwolinski J Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737 GL-82-33, NUDOCS 8512130118
Download: ML18038A096 (5)

Text

REGULATORY ORNATION DISTRIBUTION SYS '0 (RIDS)

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~l ACCESSION NBR: 8512130118 DOC. DATE: 85/12/06 NOTARIZED: NO DOCKET FAC IL:.50-220 Nine Nile Point Nuclear Stationi Unit ii Niagara Pore 05000220 AUTH. NANE AUTHOR AFFILIATION NANGANi C. V. Niagara t'tohawk Poorer Corp.

REC IP. NANE RECIPIENT AFFILIATION ZWOLINSKIIJ. A. PWR Pro gee t Directorate 1 SUB JECT: Forwards Figure 1I inadvertently excluded form 851018 submittal re shutdown cooling sos instrumentationi per Section 6. 1 of Generic Ltr 82-33 (Suppl 1 to NUREG 0737).

Response to Item B. 2 re neutron flux monitoring revised.

DISTRIBUTION CODE: AOOSD COPIES RECEIVED: LTR I ENCL l SIZE; TITLE: OR/Licensing Submittal: Supp I 1 to NUREG-0737(Generic Ltr 82-33)

NOTES: 05000220 OL: 08/22/69 REC IP I ENT COPIES RECIPIENT COPIES ID CODE/MANE LTTR ENCL ID CODE/MANE LTTR ENCL BWR PD1 PD 7 7 BWR PD1 LA 1 1 HERNANNI R 1 INTERNAL: ADN/LFNB 1 0 IE/DEPER/EPB 3 3 NRR PAULSON> W 1 1 NRR PWR *DTS 1 ~

1 NRR PWR-A *DTS 1 1 NRR PWR-B ADTS 1 1 NRR/DHFT/HFIB 5 5 NRR/DHFT/NTQ 2 2 DIR 1 1 NRR/ORAS 1 1 REG FILES 1 1 RGN1 1 1 EXTERNAL: 24X 1 1 LPDR NRC PDR 1 1 NSIC TOTAL NUMBER OF COPIES REQUIRED: LTTR 32 ENCL 31

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NIAGARA MOHAWK POWER CORPORATION/300 ERIE BOULEVARD WEST, SYRACUSE, N.Y. 13202/TELEPHONE (315) 474-1511 December 6, 1985 Director of Nuclear Reactor Regulation Attention: Mr. John A. Zwolinski, Project Director BWR Project Directorate Number 1 Division of BWR Licensing U.S. Nuclear Regulatory Commission Washington, O.C. 20555 Re: Nine Mile Point Unit 1 Docket No. 50-220 DPR-63 Our October 18, 1985 letter provided additional information comparing Nine Mile Point Unit 1 instrumentation to the requirements of Section 6. 1 of Generic Letter 82-33 (Supplement 1 to NUREG 0737) . In our response to item B. 10 (contained in the attachment to our letter), we referenced Figure 1 in discussing the shutdown cooling system instrumentation. The referenced Figure 1 was inadvertently excluded from our letter. Attached is Figure 1 for your inclusion into our October 18, 1985 submittal.

Additionally, this letter supplements and clarifies our October 18, 1985 response to item B.2 regarding neutron flux monitoring. Your contractor stated, in part, that "The licensee should follow industry development of this equipment, evaluate newly developed eauipment, and install Category 1 instrumentation when it becomes available." Niagara Mohawk has and will continue to evaluate newly developed neutron flux monitoring instrumentation.

Currently, testing is being performed in conjunction with General Electric on two newly developed wide range neutron monitoring detectors installed at Nine Mile Point Unit 1 dur ing the 1984 refueling outage. These are used for testing only. They have not replaced existing neutron monitoring eauipment. These tests will determine the adeauacy of newly developed eauipment. Niagara Mohawk plans to continue with this testing program and research other alternatives to continue providing effective and practical neutron flux monitoring.

Sincerely, NIAGARA MOHAWK POWER CORPORATION 8512130118 851206 PDR ADQCK 05000220 PDR C. V Mangan Senior Vice President DJW bd Enclosures cc: Mr. Jay Dunkleberger Division of Policy Analysis and Planning New York State Energy Office Agency Building 2 Empire State Plaza Albany, NY 12223

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