ML20091L264

NPDES Noncompliance Notification:On 810206,10,13 & 28, Coliform Readings Were 278 mpn/100 ml,918 mpn/100 ml,1609 mpn/100 Ml & 542 mpn/100 Ml,Respectively.Caused by High Flow Experienced by Sewage Treatment Plant

ML20091L264
Person / Time
Site:	Calvert Cliffs
Issue date:	03/09/1981
From:	Russell L BALTIMORE GAS & ELECTRIC CO.
To:	Riggin R MARYLAND, STATE OF
Shared Package
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References
NUDOCS 9201270340
Download: ML20091L264 (1)

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B ALTIMORE G AS AND ELECTRIC COMPANY F.G. nO X

• 4 7 5 B A LTIMOR E. M A R YL A N D 212o3 NUCLEAR POWER DEPARTMENT cALVERT CLIFr$ NUCLEAR POWER PL ANT LUSBY. W A RYL AND 20457 -

March 9,1981 State of Maryland Department of Natural Resources Water Resources Administration Taves State Office BM3 ding

- Annapoli s , MD 21h01 Attention: Mr. Rayuond E. Riggin tie : Marylanc. State Discharge Permit No. 7k-DP-0187A (NPDES No MD 0002399)

Dear Mr. Riggin:

During the month of February, there were four violations in the sewage plant operation at the Calvert Cliffs Nuclear Power Plant not previously ,

reported in accordance with section II.B.2 of the Marylanti State Discharge Permit No. Th-DP-0187A.

On February 6,10,13, and 18, the coliform readings were 278 mpn/100 m1, 918 mpa/100 m1,1609 r::pn/100 ml and Sh2 mpn/100 m1, respectively; all greater then tne allovable 70 mpn/100 ml. -

These evento vere rJ3 due to enceptionally high flows being experienced by the cavage treatment plant. As stated in an earlier letter, since October the Calvert Cliffs Nuclear Power Plant (both Unit 1 and Unit 2)-

has been in a scheduled ~ refueling / major modification outsge,-which demands a ,large work force population. The existing. treatment plant has not been fully capable of handling this increased flow.

To correct this situation, a staff engineer and two chemistry technicians are working tova*d a plant modification program designed to provide full 3 c:mpliance by June 1, 1981. Also, a larger or additional sewage treatment

g facility -is being planned as a major component of the Nuclear Power Plant

- O a.- expansion. *

=wo

-OO

'g Sincerely yours, OM

'car  %

I b <t L. B. Russe

'3 Plant Superintenacnt 05

/ & c.co JES:feb cc: J. A. Tiernan