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|LDEQ Accident Number
|Point Source(s)||Notes||Amount of Release|
|Stormwater Outfall 006||Cause: HEAVY RAINS. Caused Refinery Stormwater Impoundment Basin (SWIB) to exceed capacity, forcing a bypass "to prevent flooding of the refinery and damage to the SWIB from overtopping of the SWIB levee." Caused oil sheen upstream of St. Charles Parish's Bayou Trepagnier Pump Station. Refinery letter states that less than 1 gallon of oil was released.
SECONDARY CAUSE: Equipment Design - impoundment basin capacity was insufficient for heavy rainfall.|
Notes: BRQ. Refinery letter states that no reportable quantities were exceeded, but incident was an "unauthorized discharge." Material removed from vicinity of parish pumping station via absorbent pads; will install additional absorbent booms in the outfall and increase surveillance of the outfall during future discharges.