ML20079J407
| ML20079J407 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 12/21/1982 |
| From: | Jackie Cook CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| 20393, NUDOCS 8212280207 | |
| Download: ML20079J407 (3) | |
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Consumers POWar 4
Company General offices: 212 West Michtgen Avenue, Jackson, MI 49201 + (617) 788-o550 December 21, 1982 Harold R Denton, Director Office of Nuclear Reactor Regulation Division of Licensing US Nuclear Regulatory Commission Washington, DC 20555 MIDLAND NUCLEAR C0 GENERATION PLANT MIDLAND DOCKET NOS 50-329, 50-330 FINAL ENVIRONMENTAL STATEMENT DOW CHEMICAL COMPANY EFFLUENT DISCHARGES FILE: 0505.5 SERIAL: 20393 Per NRC request, this letter documents information provided to the NRC by telephone on December 15, 1982, regarding data on Dow Chemical effluent discharges to the Tittabawassee River. During the period December 21, 1980 through November 20, 1982, effluent discharges from the Dow Chemical tertiary treatment pond had the following characteristics:
1.
Average Flow Rate - 25.2 million gallons per day (A maximum daily flow rate of 43.5 million gallons per day occurred once during this time period).
2.
Differential Temperature - Although specific temperature information is not obtained for the Dow Chemical Company NPDES Permit, we have been informed by Dow that, due to the delay time in the tertiary pond the differential temperature of the effluent with respect to ambient river temperature is less than 5 F.
3.
Total Dissolved Solids (TDS) - Average net concentration 3,516 ppm (maximum net 4,718 ppm) l
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2 These data are presented in. contrast to the data used in the cooling pond r
operation study which assumed a Dow discharge flow of 43.3 million gallons per.
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day, a differential temperature of 5'F and a TDS concentration cf 2500 ppa.
Collectively, the historical data confirms that the study assumptions used to l.
determine TDS river loading due to Dow were reasonable and conservative.
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CC RJCook, Midland Resident Insp ctor RHernan, US NRC ~
RWHuston, Washington l
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7 CONSUMERS POWER COMPANY Midland Units 1 and 2 Docket No 50-329, 50-330 Letter Serial 20393 Dated December 21, 1982 At the request of the Commission and pursuant to the Atomic Energy Act of 1954, and the Energy Reorganization Act of 1974, as amended and the Commission's Rules and Regulations thereunder, Consumers Power Company submits information on the characteristics of the_cffluent discharges from the Dow Chemical tertiary treatment pond.
CONSUMERS POWER COMPANY By h
M b
J Cook 7 Vice President Projec
, Engineering and Construction Sworn and subscribed before me this 22 day of December,1982
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Notary Public Jackson County, Michigan My Commission Expires September 8, 198h l
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