ML20154C178

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Forwards Mod to NPDES Permit IL0048313 Issued on 880414. Mod Returns Ph Monitoring Frequency of Sewage Treatment Plant Effluent to Twice Per Month
ML20154C178
Person / Time
Site: Byron  Constellation icon.png
Issue date: 05/12/1988
From: Ainger K
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML20154C183 List:
References
3705K, NUDOCS 8805180072
Download: ML20154C178 (3)


Text

'. N CORWRORWGGith Edl80H

' ) One First National Plaza. CNeago, infos O Address Reply to Post Omco Box 76F CNeago, IEnors 60690 0767 May 12, 1988 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Byron Station Units 1 and 2 NPDES Permit NRC Docket Nos. 50-454 and 50-455 Gentlemen:

Commonwealth Edison is the holder of National Pollutant Discharge Elimination System (NPDES) Permit W. ILOO48313 for Byron Station. A modification to the permit was issued April 14, 1988 by the Illinois Environmental Protection Agency. The permit has been modified to return the pH monitoring frequency of the sewage treatment plant effluent to twice per month.

This notification of a change to the NPDES Permit fulfills the reporting requirement specified in section 3.2 of Appendix B of Facility Operating Licenses NPF-37 and NPF-66. The modified permit is enclosed with this letter.

Please direct any questions regarding this matter to this office.

Very truly yours, K. A. Ainger Nuclear Licensing Administrator es Enclosure cc: Byron Resident Inspector NRC Region III Office C

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8805180072 880512 PDR ADOCK 05000454 P DCD

Illinois Environmental Protection Agency 220 Churt hill Road. Springfield. IL 6.'706 217/782-1696 Comonwealth Edison Company Byron Nuclear Power Station i

NPDES Permit No. IL0048313 Modification of NPDES Pemit (Without Public Notice)

April 1,4,1988 19.; *c . -f Comonwealth Edison Company , JElQUDT

\ ,' . .f P.O. Box 767 Chicago, Illinois 60690  % 7-Gentlemen:

The Illinois Environmental Protection Agency has examined the request for modification of the above-referenced NPDES Pemit as stated in your letters of January 8 and January 11, 1988. Our final detemination is to modify the Pemit as follows:

Per your request of January 11, 1988 the frequency for monitoring the pH of Outfall 001(b) Sewage Treatment Plant, has been corrected by restoring the monitoring frequency to twice per morith as in the reissued NPDES Pemit for the subject facility dated April 28, 1986.

The Agency is unable to grant your request of January 8,1988, to delete monitoring of Outfalls 001(e) and 002 Construction Runoff, because your request is inconsistent with a Effl uent limitations frr Outfall 001(e)pplicable regulations for pH, total suspended and/or solids policy.

and iron were exceeded it.1437 and effluent limits for pH and oil and grease were exceeded in January 1988. The low pH of P.96 in November 1987 and the oil and grease value of 52.5 mg/l in the effluent in January 1988 are not indicative of uncontarilinated stomwater runoff. It is this Agency's opinion that monitoring of Outfalls 001(e) and 002 be continued at this time in light of the recently observed levels of contaminants.

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Illinois Environmental Protectton Agency 2200 Churchill Road. Springfield. IL 6506 Page 2 Enclosed is a copy of the modified pemit. Because the changes made in the Pemit were minor, no fomal Public Notice of the modification will be issued.

Should you have questions or coments, please contact Gary Cima of rqy staff.

Very truly your ,

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Uiomas .' Swiggin, P. .

Manager, Pemit Section Division of Water Pollution Control TGM:GC:dks/1008j , 3-4

Enclosure:

Modified Pemit cc: USEPA SWQP/With Enclosure Region I/With Enclosure Records Unit Compliance Assurance Section/With Enclosure Mr. Thomas E. Heminger/With Enclosure l

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