ML20093J460

Forwards Response to J Lehr 840724 Request for Addl Info Re Environ Impact of Gas Turbine Generator Sys Presently Installed at Plant.Info Includes Results of Sound Level Survey Conducted in Generator Area

ML20093J460
Person / Time
Site:	Grand Gulf
Issue date:	07/26/1984
From:	Dale L MISSISSIPPI POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
AECM-84-0378, AECM-84-378, NUDOCS 8407300131
Download: ML20093J460 (4)

Text

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o MISSISSIPPI POWER & LIGHT COMPANY

] Helping Build Mississippi M P. O. B O X 164 0. J AC K S O N, MIS SIS SIP PI 0 9 2 05 July 26, 1984 CUCLE AR LICE NSING & SAFETY DEPARTMENT U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Washington, D. C. 20555 Attention: Mr. Harold R. Denton, Director

SUBJECT:

Grand Gulf Nuclear Station Units 1 and 2 Docket Nos. 50--416 and 50-417 License No. NPF-13 File: 0260/L-860.0 Gas Turbine Generator Environmental Impact Information AECM-84/0378 By telecon on July 24, 1984 Mr. John Lehr, of your staff, requested information related to the environmental impact of the gas turbine generator (GTG) system presently installed at the Grand Gulf Nuclear Station (GCNS).

The purpose of this letter is to formally provide the requested information.

Attachment I to this letter provides the results of a sound level survey conducted in the GTG area. Attachment 2 to this letter provides a tabulation of the gaseous emissions from both the GTG and emergency diesel generators installed at GGNS.

If you require further information please contact this office.

Yours truly, k.D.E -

L. F. Dale Director MLC/JGC:rg Attachments cc: See next page I

gb 8407300131 840726 PDR ADOCK 05000416 *I P PDR 2

Member Middle South Utilities System L

AECM-84/0378 age 2 MIZISSIPPI POWER Q Ll2HT COMPANY

.cc Mr. J. B. Richard (w/a)

Mr. R. B. McGehee (w/o)

Mr. N. S. Reynolds (w/o)

Mr. C. B. Taylor (w/o)

Mr. Richard C. DeYoung Director (w/a)

Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Mr. J. P. O'Reilly, Regional Administrator (w/a)

'U.S. Nuclear Regulatory Commission Region II 101 Marietta St., N.W., Suite 2900 Atlanta, Georgia 30323 tv i

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'- AECM-84/0378 Gas Turbine Generators (GTG) Sound Levels

' Sound level surveys were conducted during the initial operation and testing of the GTGs. The three GTGs were operated for one hour during the initial' test period. No cemplaints related to noise or sound levels were received as a result of this testing. The maximum sound levels recorded at i the GTGs were determined to be approximately 120 dBA. Subsequently, a fence was erected to surround the GTGs at a nominal distance of 50 feet where sound levels were determined to be approximately 85 dilA. The area inside the fence has.been posted as a mandatory hearing protection area.

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Attachmsnt 2 to AECM-84/0378

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' Grand Gulf Emergency Diesel Generators (D/G) and Gas Turbine Generators (GTG)

Caseous Emissions NO, C,H CO Particulate 50 Units HPCS D/G 13.71 0.69 0.042 3.43 16.45 lb/hr.

TDI D/G l

29.10 1.45 0.099 7.28 34.9 lb/hr.

GTG 19 1.9 4.2 1.9 12 lb/ engine-br.

1. Based on Table 3.7.1, CGNS Final Environmental Report

2. Based on telecon with Dan Marinacci (O'Brien Machinery - supplier of GTGs)

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