ML20235B978
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4 ADVISORY CL.M' ITTEE ON REACTOR SAFEGls.':DS
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WASHINGTON.D.C. 20545 September 23, 1970 I
Honorabic Clenn T. Scaborg Chairman-U. S. Atomic Energy Commission Washington, D. C.
20545
Subject:
SUPPLEMENTARY REPORT ON SHOREHAM NUCLEAR P0h'ER, STATION UNIT 1 Denr Dr. Scaborg:
At its 125th meeting, September 17-19, 1970, the Advisory Comtaittee on Reactor Safeguards considered possible adverse effcets of a nearby Nike Hercules battery on the safety of the~ proposed'Shoreham Nuclear Power Station Unit 1 of the Long Island Lighting Company.
This matter was r,1so-considered at Subcommittee meetings on October 30,'.1969 at the site
.and on September 10, 1970, in Washington, D. C.
The Shoreham project was the subject of previous Connittee reports to you de.ted December 18, 1969 and February 11, 1970. During its present review the Committee had the benefit of discussions with representative.cs and consultants of the Long Island Lighting Company, The General Elcetric Company', The Stone and Webster Engineering Corporation, the Department of Defense, and the AEC Regulatory Staff, and of the document listed.
The launching area of the Nike Hercules battery is located about 1.4 miles from the Shorcham reactor.
, 0.7 miles from the reactor.
The battery control area is about
'not touard the site, and missiles accidentally launched wi:h guidanceT control vould not pass over the site.
Further, the maneuvering limita-tions of the Nike Hercules are such that a missile under guidance control could not be turned to impact in the site arca without breaking up in the air.
The Hike Hercules battery is located far enough from the Shoreham site so that the detonation of all high explosive at the battery would not cause significant damage to the proposed reactor facility.
In the unlikely event of an accidental launching of a missile there would be no guidance control and the missile would break up soon after launching. The resulting fragments, includi.ng the warhead, would 'oe distributed over the ground area within several miles of the launching position.
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,,,y The likelihood of a nissile fragment striking the Shoreham plant area and causing significant damage due to impact or explosion is a combination of the probahf11 ty of a launch which results ia breakup of the missfic and the probability, given such a breakup, that a large fragment strikes a sensitive portion of the plant. The Cotmaittee believes that the overall probability of significant damage to the proposed plant from the Nike licrculos battery is so small that it does not detract from the accept-ability of the site for the proposed plant.
The Cournit tee reconmends that the Regulatory Staff mko arrangetrcnts wIth the Department of Defense to be notified of any contemplated changos in the !!ike licrcules installation in the Shorehom area which might change the pre:: cut evaluation of the likelihood of damage to the reactor facility.
These arrangements should be co.npleted before power operation of the reactor.
The Cor:uittec belf cves that if due consideration is given to the items described in the previous reports, the nuclear plant proposed for the Shorehau Station can he cons ructed uith reaconable assurance that it can be operated without undue risk to the health and safety of the public.
Sincerely yours, ybe. kk.
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p Joseph M. Hendrie Chairman Re fe renec
- 1) Department of Defense letter dated September 9, Ic70 re: Nike llcrcules Systen at Rocky Point, Long Island m.____.___
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