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|State Police #||06-06486|
|Pollutant||Duration||Point Source||Greenhouse Gas||Criteria Pollutant||Ozone forming chemical||Amount of Release|
|Sulfur Dioxide||23 h 42 m||AE-AOA-05-0109 EPN 29||NO||YES||NO||30.0 pounds|
|Nitrogen Oxide||23 h 42 m||AE-AOA-05-0109 EPN 29||NO||YES||YES||8,293.0 pounds|
Accident Classified As:
release occurs during major turn around of refinery. Planned system outages created higher than usual operating pressure on the WGS and AMU. Additionally, on 10/13, the stream was re-routed (misaligned) through a line with an unidentified check valve. Subsequent attempts to push liquid through the AMU line resulted in increased pressure on the WGS.
Investigation ongoing. PSV set pressure was raised to allow for higher head pressure events at WGS without flaring. Detailed investigation ongoing.