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0$/01/2000 10.'52 4659427 FOWLERSBODYSHOP PAGE 02 <br /> �* I'RIaC 01 00 09i36a510 '7r 3306 p. 2 <br /> ILa IV Qj . <br /> prutocul from the° subject property on April 12, 2000, The former UST excavation is located <br /> on tkI cast side of the parcel approximately ane half way between Fremont Street and the <br /> forma Coburg Boat Works, Figure 2 is a site plan. <br /> Soil samples and a single water sample (taken frclm the west end of the excavation) were <br /> analyrxd for Tata; Petroleum Hydrocarbons as Diesel (TPHD). ToW Petroleum Hydrocartkins <br /> as GakSline (TPHG); Benzene, Toluene, Ethylbenxene and Xylene (5T9X); Oxygenates and <br /> Tutnl Ltud, at t California State Certified Laboratory. � <br /> T01al lead 4<xtcentrations were of a value consistej t with background values tar the arca. <br /> No Benzene, Zylcne or Oxygenates were detected., Negligihlr, cnncxntration,9 of Tnigl � <br /> Petroleum Hydrocarbons.Extractable: as Diesel and.Tolucnc were observed. <br /> 0asoline c:om untrutiont;(if 12.tlfffl mjAg and 3,500 mg/kg were detected at west end of the <br /> small UST and the east end of the latae UST respectively, at approximately 14 feet below <br /> Pride. <br /> This proposed work is based on the "Tank Removal and Sampling Report",[UST REPORT), <br /> prepared by KLEINFELDER, dated May 1, 2Ut)0 which was sent to JPCA, a reconnaissance <br /> of the uWve. identified site by John P. Cummings, throe conversations between Roy Fowlcr <br /> :+nilIeffe-ry C F Wrong, and a Tclrrorn t+c.tween ltftery C. F. Wong and John P. Cummings. <br /> Mr. Fowler understood. from his conversation with Mr, Wong, that the limits which were <br /> considcmd non dctectiou concentrations, for oxygenaws (Methyl Tort Butyl Hther, MTBE tt <br /> al)during the UST removal were set too high. Mr;. Fowler also understood that a "lead <br /> scavenged' needed to he ar+7lyzod (tw. John P: Cummings of JPCA suspec-ts this matczial is <br /> Ethylene Dibromide (EDB). <br /> t <br /> During John P. Cummings' Tclecom with Mr. Wong, Mr Cummings alga understtx)d that Mr u <br /> Wong considcrs the non detection limit in the analysis for MTBE, completed by Alpha f <br /> Analytical lni:,, as bcing too high. <br /> The lateral extent of contamination was recognized'as the Shaded area as:shown in the ' <br /> Excavation,Arca in the excavation identified as Figure 3, by KLE1NFELDER'S UST i <br /> N <br /> REPORT noted above. <br /> Based on the above noted information the following is proposed. <br /> This letter contains a dc,uxiption of the work proposed_ <br /> An estimated cost to accomplish this proposed work will be sant under separate Cover. <br /> Four tasks, described below, are required to complete the proposed work.- <br /> , i <br /> 2 <br />