ML19351F131
| ML19351F131 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 12/23/1980 |
| From: | Bradley Jones NRC OFFICE OF THE EXECUTIVE LEGAL DIRECTOR (OELD) |
| To: | Marshall W MIDWEST ENVIRONMENTAL PROTECTION ASSOCIATION |
| References | |
| ISSUANCES-OL, ISSUANCES-OM, NUDOCS 8012290567 | |
| Download: ML19351F131 (2) | |
Text
p oc UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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December 23, 1980 a
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I Wendell H. Marshall, Vice President Midwest Environmental Protection Associates
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7 RFD 10 5
Midland, Michigan 49640 0
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In the Matter of CONSUMERS POWER COMPANY (Midland Plant, Units 1 and 2)
Docket Nos. 50-329-0M & OL and 50-330-0M & OL t
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Dear Mr. Marshall:
i This is in response to your letter of November 12, 1980 to William Paton.
j In answer to your questions on dewatering:
The temporary dewatering system is composed of five subsystems as described in revision 10 to the FSAR dated November 1980. These subsystems are identified as follows:
Series 100, Series 200, Series 300, Series 400 and the TEW Series.
Locations of these subsystems are shown in Figure 42-5 of Amendment No. 85 to the Application, dated November 21, 1980.
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The Series 100 subsystem consists of eleven 6 inch and fourteen 2 inch wells. These are located west of the Unit 1 containment building.
4 The Series 200 subsystem consists of eleven 6 inch and seventeen 2 inch l
wells.
This subsystem is east of the Unit 2 containment building.
The Series 300 wells consist of nine 6 inch and twenty-four 2 inch wells.
l These are located north of the Service Water Pump Structure.
The Series 400 wells consist of one 6 inch and fifty-three 2 inch wells.
These are located northwest of the Service Water Pump Structure.
The TEW Series wells are located inside the Turbine Building on the north side.
This subsystem is composed of eight 3 inch wells.
The Series 100, 200 and TEW subsystems were installed to dewater the area beneath the feedwater valve pits and the electrical penetration areas of the auxiliary building for underpinning. The Series 300 subsystem was t
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- installed to dewater an area for repair of a damaged duct bank. The Series 400 subsystem was installed to dewater an area for construction of metering valve pits on the service water lines.
The Series 300 and 400 wells were activated on February 26, 1980. Pumpage from these wells initially exceeded 200 gallons per minute (gpm) but declined to less than 50 gpm within two weeks.
The pumping rate stabilized at about 35 gpm.
These subsystems are still being operated.
On August 10, 1980, pumpage was initiated from the Series 200 subsystem.
At the start of this subsystem, pumpage. for the combined 200, 300, and 400 dewatering subsystems, was greater than 250 gpm. After six weeks the combined flow was about 45 gpm.
Groundwater Quality Analyses were provided in Table 24-4 of Revision 5 to the FSAR.
PH values ranged from 7.1 to 7.4.
We have received no information from the applicant concerning the total volume of groundwater that has been pumped since dewatering operations began.
Water from the dewatering system is not being pumped into the Tittabawasse River.
It is being pumped into the Midland cooling pond.
Sincerely,
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Bradley W. Jones Counsel for NRC Staff cc:
Charles Bechhoefer, Esq.
James E. Brunner, Esq.
Mr. Gustave A. Linenberger Ms. Barbara Stamiris Dr. Frederick P. Cowan Mr. Steve Gadler Frank J. Kelley Ms. Sharon K. Warren Steward H. Freeman Atomic Safety and Licensing Gregory T. Taylor Board Panel Myron M. Cherry, Esq.
Atomic Safety and Licensing Ms. Mary Sinclair Appeal Board Panel Michael I. Miller, Esq.
Docketing and Service Section Ronald G. Zamarin, Esq.
Alan S. Farnell, Esq.
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