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On April 6, 1992 the State Water Board gave Chapin Bros. "Notice of Acceptance" as a <br /> priority "B" claim# 557. <br /> The process was highly regulated and the preliminary work included: <br /> -Bids to define subsurface environmental investigation to evaluate the degree <br /> and lateral extent of the site. <br /> -Request bids for proposal (R.F.S.) Remediation Feasibility Study <br /> -Request bids for a (R.F.P.) Remedial Feasibility Plan <br /> -Request bids for a Final Remediation Plan (FRP) including a vapor extraction - <br /> Pilot test. Obtain site access permission from all property owners contiguous to <br /> site <br /> On March 19, 1993 subsurface environmental investigative work defining the <br /> extent of the problem was completed. The investigation included three-soil boring and <br /> installing ground water monitoring wells, performing a soil extraction pilot test including <br /> a 6 to 8 hour pump test on existing wells. <br /> On August 2, 1994 the engineering firm of Wallace-Kuhl & Associates after <br /> reviewing thru PAR prepared by Seacore & Associates commented the report appears <br /> to indicate soil above the water table contained the only significant contaminated soil <br /> beneath the site. In other words "no problem with the soil". <br /> September 02, 1994. The engineering firm of Wallace-Kohl prepared an outline <br /> of tasks for our Request For Proposal (RFP) after reviewing commented the Vapor <br /> Extraction Pilot test performed by Seacore was inconclusive; the installation was too <br /> near the vicinity of the pea gravel. Recommended installing an additional vapor <br /> extraction well and a minimum of two additional vapor extraction wells and a minimum <br /> of two observation wells. <br /> April /May 1995 Chapin Bros requested bids from three firms Wallace-Kohl, Lush <br /> Geosciences, and Advanced Environmental Inc., this proposal to provide environmental <br /> consulting services soil and ground water remediation. <br /> August 1, 1995 the Public Health Services reviewed the completed Final <br /> Remediation Plan (FRP) also the groundwater monitoring of April 1995. This plan <br /> selected vapor extraction in conjunction with in-site air sparing as the corrective action <br /> technology for the site remediation. The County approved of the plan as appropriate for <br /> the site geology and the containment identified. <br /> In August 1995. The sample analysis by MC Campbell Analytical reported: <br /> TPH Benzene Toluene <br /> MW 1 27,000 72000 1100 <br /> MW 2 ND ND 0.76 <br /> MW 3 2800bd 68 5.2 <br /> MW 4 140,000a.b. 23000 31,000 <br />