ML20040H060

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Requests Info Why Potential Effects of Electromagnetic Pulse (Emp) on Power Plants Are Not Considered Unresolved Safety Issue.Facility Const Should Stop Until Emp Effects Have Been Evaluated Re Location & Type of Shielding Const
ML20040H060
Person / Time
Site: Midland
Issue date: 12/14/1981
From: Marshall W
MAPLETON INTERVENORS
To: Dircks W
NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO)
Shared Package
ML20040H059 List:
References
NUDOCS 8202170083
Download: ML20040H060 (2)


Text

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.a Wendell H. Marshall MAPLETON INTERVENORS Route 10 Midland, Michigan 48640 December 14, 1981 Mr. William J.

Dircks Executive Director For Operations Nuclear Regulatory Commission Washington, DC 20522

SUBJECT:

Unresolved Safety Issues and EMP

Dear Mr. Dircks:

NUREG-0510, " Identification of Unresolved Safety Issues Relating To Nuclear Power Plants - A Report To Congress", dated January, 1979.

An unresolved safety issue is a matter affecting a number of nuclear plants and poses important questions concerning the adequacy of existing safety requirements for which a final resolu-tion has not yet been developed.

And that' involves conditions not likely to be acceptable over the lifetime of the plants it affects.

In view of the above statement, it is reasonable to request why the potential effects of the electro magnetic pulse (EMP) on nuclear power plants is not to be considered an unresolved safety issue.

In your letter dated the 24th of November, 1981.in response to.my mailgram dated the 1st of October, 1981, you-candidlyfadmit that a single EMP could affect most of the nuclear plants in the continental United States.

And yet you disregard, apparently, the public health and safety by citing NRC (10CFR50.13 ) which states that license applicants are not required to provide design features for specific purposes.

NUREG-0513 prepared in 1976 comes

'as a, surprise since the study points out the-affects of EMP on nuclear power plants.

However, NRC indi6ates that the regulations do not require design provision or revision of any existing licenses.

Since the public health and safety is involved and.since their methods of " hardening" a plant, especially during construction, it is impossible to conceive a Federal Agency failing in its health and safety responsibilities.

You state NRC regulations do not require protection against nuclear weapons, on the other hand NUREG-0513 goes to great length to point out that concrete and steel plate are excellent as shielding, but admits that at least 30-40 DB of attenuation are avialable from reinforced concrete.

This may be correct except that the EMP.tra-vels over all circuitry regardless of the steel or reinforced con-crete.

The NRC admits that the greater part of the circuitry is P202170083 820129 PDR ADOCK 05000329 44 PDR

1 1

i

.Mr. William J.

Dircks i

December 14, 1981 Page.Two outside of the steel and concrete containment building.

Under these circumstances, I question whether the public is properly protected by an agency that appears to be more intent on. promoting nuclear energy and nuclear power plants than providing for the pub-lic health and safety.

According to the articles in Science Magazine, dated the 29th of May 1981, 5th of June 1981, 12th of June 1981, and in IEEE Spectrum for June 1981, EMPs have affected the strategic planning of the Pentagon because of the necessity to " harden" the command and con-trol communications networks and circuits.

Evidently, based on this information, the vulnerability of the nuclear reactors within the continental United States is real since EMP will disable communica-tions, cause wide spread paralysis of. electrical and electronic equipment, severely damage electronic control and instrumentation circuitry and all nuclear plants, starting circuitry for the emer-gency diesel power generator, including the nuclear plants' solid state control elements in the station battery circuits.

The affects of EMP on any plant, especially Midland Nuclear should be evaluated in detail in terms of the location'and type of shield-ing construction for the various related elements of the plant.

In other words, the construction of the plant should be halted until it has been determined how to " harden".

Then the " hardening" process could proceed in conjunction with construction.

In view of the above, the NRC should take imm,ediate action to stop construction of the plant until revision of existing regulations to include " hardening" of nuclear plants is complete.

The design provisions for protection against EMP are required for the protection of the public health and safety.

I, therefore, again request termination of construction until the EMP problem is resolved on the public health and safety issue, and not on present NRC EMP regulations that indicate if the subject is ignored will disappear.

This EMP is a serious problem and cannot be passed over so lightly as indicated in your letter to me (the 24th of November, 1981).

Please advise.

Since ely,

/ $44

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Wendell H. Marshal

.cc:

Representative Don Albosta Senator Carl Levin Steve J. Gadler, P.E.