ML20039E674

Provides Current Status of Prompt Notification Sys Upgrade Effort & Responds to 811215 Request for Addl Info.Oh Disaster Svc 811218 Test Rept & Acoustic Technology Draft Evaluation of Siren Coverage Encl

ML20039E674
Person / Time
Site:	Davis Besse
Issue date:	12/30/1981
From:	Crouse R TOLEDO EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20039E675	List: ML20039E674 ML20039E680 ML20039E684
References
1-235, A81-4528, NUDOCS 8201110160
Download: ML20039E674 (4)

Text

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Er Docket No. 50-346 / PRINCIPAL STAFF TOLEDO D UIF SP E%IS License No. NPF-I k/3 1A0 EDIM N

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SedialNo.1-235 40 Roano P. C AOUSE DP&PI g *aat December 30, 1981 "'* * "

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A81-452B g -/ vDEP&O[ iFile (b WL)Ap St)Ct % DC'Ob - C l

to u'L b lL lO n.p w itL C G . O q James G. Keppler, Director 4 RECEIVED Region III 9 -

.-- United States Nuclear Regulatory Commission ?9- JAN 7 1982>

799 Roosevelt Road a scan m anas O Glen Ellyn, Illinois 60137 K ais m arge 1 LT4

Dear Mr. Keppler:

t3 O W On December 14, 1981 (TED Serial No. 1-233) Toledo Edison notified you of defi-ciencies in the December 9, 1981 test of the prompt notification system (PNS) surrounding the Davis-Besse Nuclear Power Station. Attachment 1 forwards the official report of the test frota the Ohio Disaster Services Agency dated December 18, 1981. This letter is to provide the current status of PNS upgrade effort and to. address the information requested in your letter of December 15 (TED Log. No. 1-576).

The installed system was intended to provide coverage in the 0-5 mile radius from the facility. As a result of the test, the system vendor and siren manufacturer identified that inherent desiga characteristics of rotating sirens contributed to the-coverage reduction.

Due to the deficiencies in the original vendor evaluation of siren coverage, Toledo Edison has secured the services of Acoustic Technology Inc. (ATI) to

- perform a detailed evaluation of the 0-5 and 5-10 mile.

The methodology and preliminary results of that ATI evaluation are provided as Attachment 2. Identification of the appropriate siren locations to cover the Emergency Planning Zone (EPZ) is illustrated in Attachment 3. The table below summarizes the results:

Radius from Sirens Plant Existing New Total 0-5 Miles 4 7 11 5-10 miles 0 32 32 0-10 miles (combined) 4 39 43 JAN 41 #

'THE TOLEDO EDISON COMPANY EDISON PLAZA 300 MADISON AVENUE TOLEDO, OHIO 43652 8201110160 011230 .-

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1 Dockst Ns. 50-346 Licen2 No. NPF-3 Serial No. 1-235 December 30, 1981 Page Two In parallel with the evaluation efforts, Toledo Edison has initiated procurement of additional sirens. Federal Sign and Signal Corporation is the manufacturer , ,

for the additional units and has commenced shipment. They have committed to l Toledo Edison that all required sirens will arrive by mid-January. Arrangements to expedite physical installation in Toledo Edison and Ohio Edison service territories have been made including the delivery of required new poles. Exact siren locations are being field verified for suitability so that right-of-way approvals can be attained from local government organizations or private citizens.

These efforts are being directed to complete installation of an upgraded PNS to meet the criteria in Appendix 3 of NUREG-0654, Revision 1 by February 1, 1982.

Although the equipment and physical installation activities are underway the actual completion is extremely dependent on weather conditions. Toledo Edison will keep you appraised of our progress and will notify you of any delays from our current schedule due to problems in equipment delivery, right-of-way approvals or physical installation. Status reports will be provided in writing on January 8, 15 and 22, 1982.

Very truly yours, ff RPC:TJM:sas cc: DB-1 Resident Inspector, w/o Regional Director, FEMA, Region V, w/o NRC/NRR Project Manager, w/o J. C. Clem, Adjutant General, State of Ohio, w/a Ottawa County Commissioners, w/a i

i SUBMITTAL TO NRC LETTER DATED DECEMBER 15, 1981 FOR THE DAVIS-BESSE NUCLEAR POWER STATION UNIT 1 FACILITY OPERATING LICENSE NPF-3 This is filed in accordance with 10CFR50.54(f). This letter

,- provides information relating to the Prompt Notification System surrounding the Davis-Besse Nuclear Power Station, Unit 1.

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Vice President,' Nuclear Sworn to and subscribed before me this 305 day of December, 1981.

wY.* $ Y?dkUud Notary Public C :!, e t';L.%

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Docket No. 50-346 License No. NPF-3 Serial-No. 1-235 December 30, 1981 i

Attachment 1 l

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