ML19254E237

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Submits 15 Questions Re Sinking of Diesel Bldg & Serious Cracks in Other Bldgs
ML19254E237
Person / Time
Site: Midland
Issue date: 09/04/1979
From: Marshall W
AFFILIATION NOT ASSIGNED
To: Harold Denton
Office of Nuclear Reactor Regulation
Shared Package
ML19254E232 List:
References
NUDOCS 7910310363
Download: ML19254E237 (2)


Text

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7 Mr. Harold R. Denton, Director Office of Huclear Reactor Regulation United States fluclear Regulatory Comission --

Washington, D.C.

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Dear 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 HRC doing to properly safeguard the public health and safety from the following:

1.

Sinking buildings?

2.

Cracks in other buildings which implies sinking?

3.

Improper support to structures, as example, the service water intake building with foundations on backfill?

4.

Cracked walls in auxiliary building which contain important safety egyipment?

5.

Why is it necessary to install a pemanent de-watering system?

6.

Is a pemanent 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 now 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 down before any building is erected)?

10.

Consumer's Power Company states that all problems can be corrected - but why did the problems occur in the first place?

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 power plant?

13.

How can the public be assured that proper geological studies were performed to 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 the pond sealed to prevent water seepage into the building area?

At meetings held on 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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Mr. HFold R. Denton, Director September 4, 1979 Page Two Since the AEC, your predecessor agency, violated the siting regulations by allowing the construction of the nuclear plant within the confines of Midland, MI, what action is being taken by HRC to insure that this plant will not continue sinking which would damage the buildings? And, finally, what assurance does the public have that other buildings are not in jeopardy?

I await your answers to the questions posed.

Yours very truly, Wendell H. Marshall Napleton Intervenors MUi/jy cc: Senator Carl Levin Senator Donald Riegle, Jr.

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