ML20195J490

NPDES Noncompliance Notification:On 880616,TRC at Discharge Rose to 0.3 Mg/L.Caused by Higher than Normal Amount of Sodium Hypochlorite Inadvertently Added During Chlorination of Cooling Tower A.Util Will Evaluate Causes

ML20195J490
Person / Time
Site:	Palisades
Issue date:	06/20/1988
From:	Fobes R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18053A670	List: ML20195J484 ML20195J490
References
PAL-88-06-NC130, PAL-88-6-NC130, NUDOCS 8812020190
Download: ML20195J490 (2)

Text

. '- , e' June 20, 1988 Mr Fred Morley District Supervisor Michigan Dept of Natural Resources 1

1.ainwell District Office Building 621 North Kent Street PO Box 355 Plainwell, MI 49080 FILE NO: P10.2.1 UFI 950/72*40*05/3 Years INCIDENT NO: PAL-88-06-NC130 This is in regard to NPDES Permit No MI 0001457 for the Company's Palisades Plant. In accordance with Part II, A4, the attached "NPDES Notification,"

Incident No PAL-88-06-NC130 is submitted as a report of an apparent difference from the daily maximum effluent limitations for this facility.

If you have any questions regarding the attached report, please contact this office.

7kaL,/Xfo/M- l Ronald L Fobes Senior Environmental Advisor BCC DAndrews, Palisades Bieszke, T-242A CBordine, P-24-603 CHillman, Palisades ATUdrys , M-1023 l

l l I 2

SG12020190 881129 PDR ADOCK 05000255 s PDC JUN 211%8 oc0688-40RLF-ENO3 NgAg glggggy, 1 ,

yv O

-s-Parameter:

Total Residual Chlorine 1.

Parameter Code No: 50060 I Date of Incident: June 16, 1988 2.

Identification of Specific Effluent Limitation Affected: or Monitoring Requirement '

.. - [. 9 Daily Maximum Limit of 0.2 mg/l TRC a J*

., y

3. Description of Incident: f47-q k- -

During routine chlorination of the A Cooling Tower a higher than normai amount of sodium hypochlorite was ,

at the discharge rising to 0.3 mg/1. inadvertently added resulting in the TRC

' L.

4. Apparent Cause: .

The sodium hypochlorite flovmeter indi ated ..

actual flow was in excess of 2 gpm. 1/2 gallon per mirute when the 5

) .

If not .-

expectedimmediately to continue:corrected, the anticipated time the condition ts M

The chlorine at flow ertor was discovered at 1830 hours0.0212 days <br />0.508 hours <br />0.00303 weeks <br />6.96315e-4 months <br /> when analysis indicated 0.3 mg/l 1825 hours and flow was secured TRC.

6.

Corrective Action - The following corrective action was taken to reduce, eliminate and prevent recurrence: taken or will be Palisades Event corrective actions Report E-Pal-88-021 will evaluate causes and provide for to eliminate recurrence. --

7.

AddiLional Comments:

Visual observations of the mixing basin discharge and Lake no adverse effects upon aquatic biota. Michigan showed -

8. Signed:

~

fc_ ~

Ronald L Fdies -

~

RP0688-40RLF-ENO3 _

g

_.' 4' l .

m ~

l

Filo No P10.2.1

. Incident No: PAL-88-06-NC130 UFI No: 950*72*40*05/3 Yes NPDES NOTIFICATION Apparent Difference From Daily Maximum Limitation Plant: Palisades Permit No: MI 0001457 Outfall

Description:

Mixing Basin Discharge Outfall No: 001 to Lake Michigan Parameter: Total Residual Chlorine Parameter Code No: 50060

1. Date of Incident: June 16,1988

2. Identification af Specific Effluent Limitation or Monitoring Requirement Affected:

Daily Maximum Limit of 0.2 mg/l TRC

3. Description of Incident:

During routine chlorination of the A Cooling Tower, a higher than normal amount of sodium hypochlorite was inadvertently added resulting in the TRC at the discharge rising to 0.3 mg/1.

4. Apparent Cause:

The sodium hypochlorite flowmeter indicated 1/2 gallon per minute when the actual flow was in excess of 2 gpm.

5. If not immediately corrected, the anticipated time the condition is expected to continue:

The chlorine flow error was discovered at 1825 hours0.0211 days <br />0.507 hours <br />0.00302 weeks <br />6.944125e-4 months <br /> and flow was secured at 1830 hours0.0212 days <br />0.508 hours <br />0.00303 weeks <br />6.96315e-4 months <br /> when analysis indicated 0.3 mg/l TRC.

6. Corrective Action - The following corrective action was taken or will be taken to reduce, eliminate and prevent recurrence:

Palisades Event Report E-Pal-88-021 will evaluate causes and provide for corrective actions to eliminate recurrence.

7. Additional Comments:

Visual observations of the mixing basin discharge and Lake Michigan showed no adverse effects upon aquatic biota.

8. Signed:

G7df&.

Ronald L Fobee RP0688-40RLF-ENO3