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ARCO PRODUCTS COMPANY SOIL VAPOR EXTRACTION AND <br /> TREATMENT(SVETS)AND AIR SPARGING (AS) SYSTEMS OPERATING REPORT <br /> Second Quarter 1997 <br /> Facility 2133 <br /> Facility address 2908 Benjamin Holt Dr Stockton,CA <br /> ARCO engineer Mr Paul Supple <br /> Consultant[project manager] Brown and Caldwell[Steve Misner,(916)444-0123] <br /> Lead agency San Joaquin County Health Department <br /> Reporting penod 3/31/96-6/30/97 <br /> Equipment inventory Airex KATOX 100 <br /> catalyst module <br /> 10 hp Baldor Motor 240V, I phase <br /> Gast Oilless Regenerative Blower <br /> ATI telemetry system <br /> Knockout pot <br /> MD Pneumatics sparge blower <br /> The SVETS was not operated this quarter due to low influent concentrations to the oxidizer as a result of high <br /> groundwater levels The SVETS eras started briefly on 4/21/97 to check influent concentrations which were <br /> 12 2 ppm after two hours of operation The AS system is fully operational and operated 100%for the <br /> reporting period <br /> Operating mode Catalytic Oxidation <br /> AQMD Permit 4,AN N-78-3-0 <br /> End of period date 6/30/97 <br /> Soil vapor extraction system Influent Summary <br /> TPH conc end of period(PID,ppmv) 12 2(4/21/97) <br /> Flowrate end of period(cfm) 0 <br /> Total system vacuum(in H2O) 0 <br /> Current well source VW-1,VW-2,VW-3 <br /> HC destroyed this period(PID,lbs) 0 <br /> HC removal rate(PID,lbs/day) 0 <br /> Operating hours this period 2 <br /> Percent up time 0% <br /> Operating hours to date 8,124 <br /> Attachments <br /> Table 1 Soil Vapor Extraction and Treatment System Influent Data <br /> Table 2 Soil Vapor Extraction and Treatment System Effluent Data <br /> Table 3 Soil Vapor Extraction Well Data <br /> Table 4 Air Sparging Well Data <br /> Table 5 Dissolved Oxygen Concentrations <br /> Chart I TPH-G Concentrations vs Time <br /> Chart 2 Cumulatile Hydrocarbons(as TPH-G)Remo,,ed vs Time <br />