ML20091L293
| ML20091L293 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 02/02/1981 |
| From: | Russell L BALTIMORE GAS & ELECTRIC CO. |
| To: | Riggin R MARYLAND, STATE OF |
| Shared Package | |
| ML20091K978 | List:
|
| References | |
| NUDOCS 9201270347 | |
| Download: ML20091L293 (1) | |
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B/*i TIMORE G AS AND ELECTRIC COMPANY P.O. DOX 1475 B A LTIM O R E, M A R Yl. A N D 212 0 3 i
- HUCLE AR POWF.R DEPARTNENT I
i C ALVERT CL8F F 5 NUCL E AR POWE4 PLANT LU58Y.MARVLAHO 'EC457 February 2, 1981 i.
State 'or Maryland-Office of Er.vironmental Pregrams kaste Manacenent and Inforcement Program
- sves State Office Building F
Asnapolis,-Maryland 21kO1 p
Attention: Mr. Raynond. E. Figgin
-- )
Gentlenen:
On October 29, 1980 a semple vas diavn for the routine weekly colifom anal.y si s.
The results from this tect indicated a concentration of 3h? mpn/100 ml.
Pem.t requirement to 70 mpn/100 m1 maximum. This is
'~a, violation of section..e of the Maryland State Discharse Pemit No.- TSDP-016TA for Calvert Cliffs Nuclear Power Plant.
Q.) eveut'vaa telieved to be caused by an unusually hi;h flow-to the t
plent socn seter the'sttitt of a refueling outage at-the plant.
This surge substantially increasel the f.'ov in.the chlorine contact tank, which, in turn, reduced lthe chlori-
- ontact time.. This contact time y
vas' too short to provide. effectivt sinfection.
it To correct 'this situation, the chlorine concentration was increased in the contact tank. N flow path from the vet vell into the plant was adjus+ed to allev the - uurges-to be absorbed to prevent recurrence.
Very truly yours >
L. B. Russell Plant Superintendent l
' JR S:GE3: Tcb lt A
9201270347 920116 PDR ADOCR C5000317 S
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