ML20036A693
| ML20036A693 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 05/07/1993 |
| From: | Denton R BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20036A694 | List: |
| References | |
| NUDOCS 9305130138 | |
| Download: ML20036A693 (2) | |
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BA1.TIMORE j
GAS AND l
ELECTRIC 1
1650 CALVERT CUFFS PARKWAY. LUSBY, MARYLAND 20657-4702 I
ROBERT E. DENTON M8f,khhh f
7 Vict PRES! DENT NUCLEAR ENERoy (4so) reo-4465 U. S. Nuclear Regulatory Commission Washington,DC 20555 l
L ATTENTION:
Document Control Desk
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 Correspondence with the State of Maryland Regarding the Calvert Cliffs Nuclear Power Plant NPDES Permit
?
Gentlemen:
In accordance with Specification 3.2 of Appendix B, "Emironmental Protection Plan (Non-Radiological) Technical Specifications," attached is a copy of correspondence from Baltimore Gas and Electric Company to the Maryland Department of the Emironment regarding a change to our National Pollution Discharge Elimination System (NPDES) permit.
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Should you have any further questions regarding this matter, we will be pleased to discuss them with f
- you, i
Very truly yours, RED /BDM/bjd i
Attachment I
cc:
D. A. Brune, Esquire J. E. Silberg, Esquire R. A.Capra,NRC D. G. Mcdonald, Jr., NRC T. T. Martin,.NRC P. R. Wilson, NRC l
R. I. McLean, DNR J. H. Walter, PSC 110028 l
9305130138 930507 l
i PDR-ADOCK 05000317 o
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B A LT'VORE GASAND ELECTRIC CHARLES CENTER e P.O. BOX 1475 = BALTIMORE. MARYLAND 21203-1475 CORPORATE AFFA!RS May 3,1993 Mr. David Fluke Maryland Department of the Emironment Hagerstown Office Route 12 Box 107 Hagerstown, Maryland 21740
SUBJECT:
Calvert Cliffs Nuclear Power Plant (Discharge Permit No. 86-DP-0187): Clamtrol CT-1 Test Results and Permit Renew 21
Dear Mr. Fluke,
Enclosed is a copy of the results oflast year's Clamtrol CT-1 testing at Calvert Cliffs. The report is under consideration by EPRI for publication but a decision has not yet been made. Because test results indicate the CT-1 was etfective at reducing microfouling in the Saltwater System heat exchangers, the plant has decided they would like to use CT-1 as regular part of their maintenance program.
In the permit renewal application package (submitted September 1991) we requested the new permit allow for the use of this product (i.e. an allowance to use other biocides with permission of the Department;in particular we wanted to test and then consider subsequent use of CT-1). As we discussed last week, because of FIFRA labeling of the product, Clamtrol CT-1 must be specifically identified in the permit. A general clause is still desirable; however, we will need the CT-1 to be specifically identified and addressed in the permit as well. We appreciate your adding this to the draft permit if it has not already been included. We also appreciate putting a higher priority on the permit, to the extent possible, since the plant feels the product is important for the maintenance of the Saltwater System.
Please consider the following with respect to permit parameters. CT-1 treatments would be made for approximately one hour, once a week,in each Saltwater subsystem (four total) at approximately 30 ppm (same as during testing). Therefore, CT-1 would not be injected every day of the week. Measurement of CT-1 would only be appropriate when using CT-1. Also, the detection limit for CT-1 varies with salinity and is higher for water with salinity (the highest detection limit is 0.3 ppm) than the detection limit indicated with the original submittal (0.2 ppm for freshwater systems).
Please let me know if you have questions or need more information (410) 787-5114.
i Sincerely, j
cc.
M. Knott, MDE E. Bauereis l
l l L T. Ringger i
b J. Warner J. Szymkowiak J. Gines Melissa J. Wieland EmironmentalPrograms Section i
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