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Commingled Plume#35 R <br /> Chevron 9-4275/ARCO#2133 <br /> Site Conceptual Model <br /> September 1, 2006 <br /> Page 5 <br /> • <br /> air Into nine wells (GM-1 through GM-9) The SVE system was comprised of ten SVE wells <br /> (VW-1 and GM-1 through GM-9), a 5-hp positive-displacement blower, and 100-cubic feet per <br /> minute (cfm) catalytic oxidizer The SVE system was deactivated due to high groundwater <br /> levels Prior to shutdown, the SVE system extracted approximately 70 pounds of TPHg from <br /> the soil and groundwater beneath the site The SVE and AS wells were destroyed and the <br /> remediation equipment was removed from the site in May 2005 <br /> 242 ARCO 2133 Facility <br /> A groundwater extraction (GWE) system was in operation onsite between 1984 and 1996 SVE <br /> and AS systems were Initiated on January 1, 1995, and May 5, 1995, respectively The SVE <br /> system is comprised of 14 SVE wells (V-1 through V-13, and E-6) and an Alrex Katox 100 <br /> catalytic oxidizer The SVE system was shutoff on March 1, 2001, due to low Influent <br /> concentrations Prior to shutdown, the SVE system removed approximately 4,892 pounds of <br /> TPHg and 61 3 pounds of benzene The AS system is comprised of nine AS wells (S-1 through <br /> S-9) and a MD Pneumatics Model 3202 7 5-hp blower <br /> i <br /> i <br /> 94275-ARCO 2133 SCM 9-2006 rJ <br />