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ARCO PRODUCTS COMPANY SOIL VAPOR EXTRACTION AND <br /> TREATMENT (SUETS) AND AIR SPARGING (AS) SYSTEMS OPERATING REPORT <br /> Fourth 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 period 9/16/97-12/31/97 <br /> Equipment inventory Airex KATOX 100 <br /> catalyst module <br /> 10 hp Baldor Motor 240V, 1 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 <br /> high groundwater levels The SVETS was started briefly on 10/2/97 to check influent concentrations which <br /> were 7 6 ppm after one hour of operation The air sparging system was shut down on 11/12/97 due to a <br /> burned out motor The air sparging system will be restarted during the first quarter of 1998,pending motor <br /> replacement <br /> Operating mode Catalytic Oxidation <br /> AQMD Permit#,AIN N-78-3-0 <br /> . End of period date 12/31/97 <br /> Soil vapor extraction system Influent Summary <br /> TPH conc end of period(PID,ppmv) 7 6(1012197) <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 1 <br /> Percent up time 0% <br /> Operating hours to date 8,124 <br /> Air sparging system <br /> Operating hours this period 1,368 <br /> Percent up time 54% <br /> Total system operating hours to date 17,486 <br /> Table I 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 1 TPH-G Concentrations %s Time <br /> Chart 2 Cumulative Hydrocarbons(as TPH-G) Removed vs Time <br />