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I <br /> S. J. Catholic Cemetery Chronology <br /> Page 2 <br /> 05/20/98 Date of Problem Assessment Report and Corrective Action Plan providing <br /> the remedial design for an SVE/AS system and detailing the installation of iN <br /> MW6 and MW7. <br /> 1 <br /> 06/02/99 Date operation of the SVE/AS system began. <br /> 06/24/00 Date EHD concurred with removal of the SVE/AS system. <br /> Approximately 7000 pounds of gasoline was removed from the subsurface <br /> and treated during the operational period. <br /> 08/24/00 CPT 1 and CPT-1 A were drilled this date-to confirm the effectiveness of <br /> the SVE/AS system. <br /> 11/28/00 Date of the Environmental Site Investigation Report documenting the <br /> I results of a sensitive receptor survey and the drilling of CPT-1 and CPT- <br /> 1 A. <br /> 2126102- CPT IB and CPT2 through CPT6 were drilled and MW8A (screened 30-50 <br /> 315102 feet) and MW$B (screened-55-75 feet)were installed during this time. <br /> 05/02/02 Date of Report, Additional Site Investigation that documents the February <br /> through March 2402 work. <br /> 01/18/03 Date monthly batch extraction of groundwater from MW-5 and MW-7 <br /> began. <br /> 07/10/04 Final batch extraction of groundwater was completed on this date. <br /> Approximately 16,710 gallons of groundwater, with low levels of <br /> contaminant concentration, were removed using the batch extraction <br /> method. <br /> 12/21/05 Date EHD staff met with CVRWQCB staff to discuss closure of the site. <br /> 07/28/06 Date of the Site Conceptual Model and Request for Case Closure. <br /> 12/20/06 Date of the addendum to the Case Closure Report: Tier I Environmental f <br /> Screening Levels for Closure Justification. <br /> i <br /> 05/05/07 On this date a 30 day closure concurrence letter was sent to CVRWQCB <br /> by EHD. <br /> 08/17/07 The date of CVRQWCB concurrence letter granting site closure. <br />