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. Mr James Barton Project No 880-039 lA 01050000 <br /> October 22, 2003 <br /> Page 4 <br /> Subsequently, Shaw stafferform weekly s O&M collect p Y stem Y t 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 July 7, August 4, and September 22, 2003, vapor samples were collected from <br /> treatment system's influent and effluent Samples were submitted to Sierra Analytical <br /> (FLAP #2320) for analysis of TPHg, BTEX, and MTBE using Methods 8015B/802113 <br /> TPHg concentrations were reported during the July 7, 2003 event in the influent and <br /> effluent at 427 and 53 1 milligrams per cubic meter (mg/m), respectively Benzene was <br /> reported in the influent sample at a concentration of 1 34 mg/m3 TPHg, BTEX, or <br /> MTBE concentrations were below the detectable limits during the two subsequent <br /> sampling events Laboratory analytical reports and chain-of custody documentation are <br /> presented in Appendix D <br /> System Performance Status <br /> The treatment system was pulsed during the third quarter 2003 In the 91 days between <br /> July 1, 2003, and September 29, 2003, the treatment system ran approximately 46 days <br /> (51 percent operational), removing approximately 12 pounds of TPHg and 0 1 pounds of <br /> benzene, as shown on Table 2 The system's TPHg emissions were maintained below <br /> 0 28 pounds per day, below the allowable TPHg emission rate of 6 1 pounds per day <br /> TPHg and benzene destruction efficiencies were maintained at approximately <br /> 96 percent The burn chamber temperature ranged from 751'F to 777°F, well above the <br /> minimum required burn temperature of 600°F (Table 3) System performance data, field <br /> data sheets, and calculations are presented in Appendix D SVE well data are presented <br /> in Table 4 <br /> N 1sacDM0031Pr318W880039IA Sag doc Shaw Environmental,Inc <br />