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r� <br /> TEX• ENVIRONMENT, HEALTH & SAFETY <br /> SOIL VAPOR EXTRACTION OPERATION REPORT <br /> 440 West Charter Way <br /> Stockton, California <br /> Consultant SECOR International Incorporated <br /> Reporting Agency San Joaquin Valley Unified Air Pollution Controlt District <br /> Reporting Period January 1 -March 31, 1997 <br /> System Equipment AKI SYSTEMS, INC Thermal Oxidation, 4 dual-completion extraction wells, <br /> i <br /> 25 HP blower <br /> Operating Mode Thermal Oxidation <br /> Permit 9 N-3139-1-0 <br /> LABORATORY DATA (mg/M) <br /> PROCESS INFLUENT SUMMARYM Jan 97 Feb 97 06 Mar 97 <br /> TPHg(2) NA NA 2,200 <br /> Benzene NA NA 48 <br /> Toluene NA NA 30 <br /> Ethylbenzene NA NA 9 1 <br /> Xylenes NA NA 25 <br /> LABORATORY DATA (mg/M3) <br /> PROCESS EFFLUENT SUMMARY Jan 97 Feb 97 06 Mar 97 <br /> TPHg NA NA 37 <br /> • Benzene NA NA 046 <br /> Toluene NA NA 038 <br /> Ethylbenzene NA NA ND(o 2) <br /> Xylenes NA NA ND(o 4) <br /> OPERATING EFFICIENCY Jan 97 Feb 97 06 Mar 97 <br /> Average inlet temperature (°F) NA NA 86 <br /> Average outlet temperature (°F) NA NA 1204 <br /> Average inlet flow rate (scfrn) NA NA 60 <br /> TPHg emission rate (lbs/day) 0 0 086 <br /> TPHg effluent permit limit 2 lbs/day <br /> TPHg destruction efficiency NA NA 99% <br /> Benzene destruction efficiency NA NA 99% <br /> Total TPHg removed this period 315 lbs <br /> Cumulative TPHg removed(3) 5,985 lbs <br /> % Operation this period 30% <br /> M Analyzed by BC Analytical Laboratory using modified DHS Method for TPHg and EPA Method 8024 for BTEX <br /> . (2)Total Petroleum Hvdrocarbons as Gasoline <br /> (3)Cumulative TPHg is based on TPHg removal since system startup by SECOR in January 1996 <br /> ND=Not Detected at or above the laboratory detection ltttttt represented to parenthesis <br /> TESlst0ckt0nlchtmy197 tbl <br />