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|State Police #||08-06163|
|Pollutant||Duration||Point Source||Greenhouse Gas||Criteria Pollutant||Ozone forming chemical||Amount of Release|
|Sulfur Dioxide||2h 37m||FLARE - Boiler Feed Water Pump B-P-022A||NO||YES||NO||8,842.0 pounds|
|Particulate Matter||No Information Given||FLARE - Boiler Feed Water Pump B-P-022A||NO||YES||NO||BRQ|
Accident Classified As:
the event was apparently triggered by the loss of boiler feed water pump B-P-022A due to high bearing temperatures after loss of cooling water to the bearing housing. The lack of water was due to plugging (Zebra mussels) of the cooling water line. MOUSAhad the pump on a temporary cooling line (once-through cooling water from the Mississippi River) because the Area 6 Cooling Tower was shut down on 9/21 due to a planned maintenance turnaround of the Hydrocracker Unit.
This incident was not preventable because MOUSA could not anticipate that the temporary cooling line would plug. Remedial Measures - for future events when the Area 6 cooling tower is shut down, MOUSA will run B-P-022B on conditioned city water. Subsequent to this event, MOUSA installed connections to enable the use of a temporary cooling tower to supply high quality cooling water if the conditioned city water is unavailable.