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|LDEQ Accident Number
|Point Source(s)||Notes||Amount of Release|
|301-V-20 (EQT 0192)||Cause: Due to a change in estimating methodology based on a proactive analysis of stack test data from other facilities, the hydrogen cyanide emissions from the refinery are above the reportable quantity of 10 pounds per day. The continuous release being reported is not the result of a malfunction or any change in operations but rather is due to a change in estimating methodology. These emissions occur during normal operations and are stable in quantity and rate.|
Notes: These emissions occur during normal operations and are stable in quantity and rate during normal operations. A permit modification application shall be submitted to accommodate the higher emission rate. Modeling shall be performed to assure that the Louisiana Toxic Air Pollutant Ambient Air Standard is not exceeded. Applicable requirements and permits to determine if HCN emissions are federally permitted are being evaluated and it is believed by Phillips 66 that they may be exempted from CERCLA and EPCRA release reporting. Using sitewide emission rates and previously approved modeling procedures, the preliminary results indicated that HCN would not exceed the Class III AAS for HCN (260 micrograms per cubic meter over an 8-hour averaging period).
|Hydrogen Cyanide: 41,736.3 pounds|
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