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|State Police #||09-03754|
|Pollutant||Duration||Point Source||Greenhouse Gas||Criteria Pollutant||Ozone forming chemical||Amount of Release|
|Hydrofluoric Acid||32 h 40m||outfall 013||NO||NO||NO||3,257.0 pounds|
Accident Classified As:
While an operator was back flushing the HF Alky Unit's heat exchanger, a leak was discovered on the heat exchanger. The heat exchanger released chemicals into the cooling water system (outfall 013) which was subsequently released to the Mississippi River.
The Alkylation Unit was shut down. The rates were reduced and the acid was evacuated from the unit. Fluoride samples were measured from the cooling water effluent throughout the shutdown of the unit. The pH of outfall 013 was monitored. Root cause of the leak is being investigation, and the follow up should have been filed.