ML19320C319

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Provides List of Conditions for Which Info Is Requested Re Safeguards for Public Health & Safety.Also Requests Resolutions Re Cracking,Dewatering,Bldg Settlements & Caisons Problems,Per NRC 790223 & 0305 Meetings in Il
ML19320C319
Person / Time
Site: Midland
Issue date: 09/04/1979
From: Marshall W
MAPLETON INTERVENORS
To: Harold Denton
Office of Nuclear Reactor Regulation
Shared Package
ML19320C307 List:
References
NUDOCS 8007160649
Download: ML19320C319 (2)


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. J Midland, MI Route 10 . :,, -

21979 September 4,1979 - '

O Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulaticn * "

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United States Nuclear Regulatory Comission ~ . , ..

Washington, D.C.

20555 .. .

Cear Mr. Denton: '

Recent publicity concerning the sinking of the Diesel Building and serious cracks in other buildings at the nuclear plant being built at Midland, MI indicate future troubles. In view of this, what is NRC doing to properly safeguard the public health I and safety from the folicwing:

1. Sinking buildings?
2. Cracks in other buildings which implies sinking?

3.- Improper support to structures, as exacple, the service water intake building .

with foundations on backffil?

4. Cracked walls in auxiliary building which contain important safety eqdpment?
5. Why is it necessary to install a pemanent de-watering system?
6. Is a permanent de-watering system installed at all other nuclear power plants?
7. Has the large 880 acre artifical cooling pond caused excessive water which contributes to the building settlement thus causing the cracks?
8. Why is it now necessary to build caisons under the auxiliary building? Are  !

these caisons new being built under other buildings?

9. Are the caisons necessary; if so, why were they not built before the auxiliary building was constructed (I believe the foundations are put dcwn before any building is erected)? ,
10. Consumer's Power Company states that all nblems can be corrected - but why did the problems occur in the first place. _

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11. Were these problems caused because of inadequate engineering? Were they caused because of inadequate quality assurance program?
12. What is being done to prevent further sinking of the building at this nuclear l power plant?
13. Mcw can the public be assured that proper geological studies were perfomed to i detemine ground conditions before construction was started?

14.

What studies, if any, were carried out to insure the non-settlement of buildings due to ground water seepage from the 880 acre artifical pond.

15.

How was tt.e pond sealed to prevent water seepage intoJhe build'ng area?

At meetings held en the 23rd of February,1979, and March 5,1979, at NRC Region 3 Office in Glen Ellyn, IL, the Diesel Engine Building settlement was discussed. At '

these meetings what was done about the cracking, de-watering, other building settle-ments, and caisons problems?

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8007160/df'

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. Denton, Director -

Mr. Ha ,1979 Sept jf iting regulations by allowingisthe l' i l

',/Since the AEC, your predecessor agency, violated the construction of the nuclear plant within the confines of Midland, s ld MI, wha

' ' j being taken by NRC to insure that this ,lant will not continue -

damage the buildings?

buildings are not in jeopardy?

I await your answers to the questions posed.

Yours very truly, Wendell H. Marshall l Mapleton Intervenors ,

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WHM/jy l l

cc: Senator Carl Levin Senator Donald Riegle, Jr.

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