ML20091L221
| ML20091L221 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 07/24/1981 |
| From: | Russell L BALTIMORE GAS & ELECTRIC CO. |
| To: | Riggin R MARYLAND, STATE OF |
| Shared Package | |
| ML20091K978 | List:
|
| References | |
| NUDOCS 9201270321 | |
| Download: ML20091L221 (1) | |
Text
.
y'AG
~
B ALTIMORE G AS /sND ELECTRIC COMP ANY P.O BOX 14 7 5 D A LTIM O R C. M A R Y L A N D 212 o 3 HUCLE AR POWLR DEPARTMENT CALVERT CLIF F $ NUCL E A R PonER PL ANT LV59Y. MARYLAND 20657 July 2h, 1981 State of Mary 1.tnd Office of Environmental Programs Waste Management and Enforcement Program Taves State Office Building Annapolis, Maryland 21h01 Attention:
Mr. Raymond E. Riggin Be: Maryland State Discharce Permit No. Th-DP-0187 A (I.'PDES No. PD 0002399)
Dear Mr. Riggin:
On June 5,1981, veekly colifom an'slysis showed a concentration of
>1609 mpn/100 ml.
This result is above the 70 rpn/100 ml pemitted by the reference permit. The cause has been determined to be conted-nation in the sodium thioculfate containers used for dechlorination.
A coliform test was perfom,:d on the sodium thiosulfate containers a.i the results indicated high colifom concentrations; the containers er.i hoses were cleaned, chlorinated and refilled for service.
To correct this situation, housekeeping frequency has been increased.
On June 2h,1981, weekly colifom analysis showed a concentration of 228 mpn/100 m1, again above the allowable limit.
An inspection of the system showed solida carryover into the chlorinc contact tank. n.e
- chlorine contact tank was drained and cleaned.
To correct this situa-i or..
the chlorine contact tank vill be inspected for possib1c contaninatic.
whenever normal effluent surveillance is performed.
Cincerely yours, 114 L. B. Russe]l Plant Superintendent JES/feb (q
Jn T L. 6 (?.
f JJ5 920127 M21 920116 PDR ADOCK 05000317 S
_