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NOV 19 2004 4t31PM Ck ,pin Brothers Investmen 209-464-6947 p . 2 <br /> Request bids for a Final Remediation Plan (FRP) including a vapor extraction <br /> Pilot test, <br /> Obtain site access perznieeion r"rom all property orrners contiguous to site <br /> March 19, 19993 subsurface environments: investigative work-defining the extent <br /> of'problera Was co:npleted. The investigation includeu 1t;ee soil bring and installirtS <br /> ground water monitoring well; performing a soil extraction pilot test ietvluding a 6to 8 <br /> hour Pump test on existing,�vell. <br /> August 02, 1994 the engineciing firm of Wallace-Kuhl &Associates after <br /> reviewing thru PAR prepared by Seacore &Associates commented the report appears to <br /> indicate soil above the water table contained the only significant contaminated soil <br /> beneath the site, In other words no problem with the soli. <br /> Septemb:r 02, 1494 Wallace-Kohl prsparod an outline of tasks for our Request <br /> For Proposal (RFP) After reviewing commented the Vapor Exiazti.on Pilot test <br /> performed by Sea core was inconclusive, the installation was too near the vicinity of the <br /> pea gravel. Recommended instalUng an additional vapor extractior well and a mirlimurn <br /> of twc additional vapor extraction wells and a m=.-num of two observation wells. <br /> April/May 1995 requested bids from three firms Wallace-Kohl, Lush <br /> Geosclences, and Advwioed Erviro mmerlrml TInc., inti; v;CP-Gsa: to provide tnvirorunental <br /> consulting services —soil and ground water remediation. <br /> August 1, 1995 the Public Health Services reviewed the completed Final <br /> Rernediation Plan (FRP) else groundwater monitoring of April 1995. This plan <br /> selected vapor extraction ie th <br /> n conjunction with in-situ air sparing as the con:eciive action <br /> techr_ology for the site rernediation, The Count}' r-ur:roved of the nfan as appropriate <br /> for the site ae0110n' And the containment identified, <br /> August 1995 Samples analysis by MC Campbel,. Analytical <br /> 08/01/1995 IMPH BenzWe Toluepe <br /> MW 1 27,000 72000 1100 <br /> MW 2 ND ND 0.76 <br /> 1V1W 3 280OW 68 5.2 <br /> NRi 7 4 140,000a.b. 2"000 31,000 <br /> ?anuary 22, 1997 performed a review of work aceompLshed and accoant <br /> reconciliation related, to the soil and groundwater remediFti.or, performed at 1766 Monte <br /> Diablo by the firm of Lush Associates. Action taken-terminate the firm of Lush <br /> Geosclences, and dile a formal complaint to rerneve bis license. <br />