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Mr Tom Busenbark Project No 880-039 IA <br /> January 29, 2003 <br /> Page 4 <br /> system occurred on February 3, 2000, under the supervision of regulatory personnel <br /> Subsequently, Shaw staff perform weekly system O&M, collect influent and effluent air <br /> ' samples monthly in accordance with air board permit requirements, and report quarterly <br /> to the air board <br /> Sampling Results <br /> On October 7, November 4, December 3, 2002, vapor samples were collected from <br /> treatment system influent Treatment system effluent samples were also collected on <br /> those dates Samples were submitted to Sparger Technology for analysis of TPH-g and <br /> BTEX using USEPA Methods 8015 and 8020 TPH-g were reported in the influent <br /> samples collected during all three events, events at concentrations of 180, 4,700, and <br /> 180 milligrams per cubic meter (mglm), respectively Benzene was not detected in the <br /> influent samples <br /> TPH-g or BTEX were not detected in the effluent samples collected on October 7 or <br /> December 3, 2002 TPH-g were reported in the effluent sample collected on <br /> November 4, 2002, at concentrations of 440 mg/m3 Laboratory analytical reports and <br /> chain-of-custody documentation are presented in Appendix D <br /> ' System Performance Status <br /> The treatment system was pulsed during the fourth quarter 2002 In the 91 days between <br /> September 30, 2002, and December 30, 2002, the treatment system ran approximately <br /> 60 days (66 percent operational), removing approximately 102 pounds of TPH-g <br /> System TPH-g emissions were maintained below 165 pounds per day, which is below <br /> the allowable TPH-g emission rate of 6 1 pounds per day TPH-g destruction efficiency <br /> was maintained above 95 percent, and benzene destruction efficiency was maintained at <br /> approximately 100 percent The burn chamber temperature ranged from 741'F to 749°F, <br /> well above the minimum required burn temperature of 600°F System performance data, <br /> field data sheets, and calculations are presented in Appendix D <br /> N 1saeDP120031Prj188018800391 A 3aa doe Shaw Environmental, Inc <br /> (01050000) <br />