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�. NX, <br /> KEI-P91-0202.P1R <br /> March 11, 1991 <br /> Page 2 <br /> om <br /> BTXea total lead and Dench snwere also analyzed for TPdition, the samples H as <br /> beneath the diesel pipe collected <br /> diesel. Analytical results of the soil samples, as <br /> from pipe trenches, indicated non-detectable levels of <br /> from <br /> gasoline and TPH as diesel, with benzene sts ares Summar zed in <br /> 0.0066 ppm to 0.017 ppm. Laboratory <br /> Tables 1 and 2. Laboratory analyses and Chain of Custody <br /> documentation are also attached. <br /> 2. Sitesite]escri tion: <br /> t the <br /> The service <br /> station <br /> 1Kettleman Lane sande Cherokee northeastcorner <br /> in aLodi, <br /> Califon <br /> California. A Location Map and Site Pians are attache . <br /> a <br /> Based on recent communication witho ndCwatertablelinn Lodi <br /> gr <br /> Rancho Cordova, California, e d between approximately <br /> over the last several yes hasrange <br /> 45 to 65 feet- <br /> PROPOSED FIELD WORK <br /> PIT EXCAVATIO N SOIL REMEDIATION <br /> PHASE I - FUEL, TANK <br /> uses first excavation of the fuel tank pit to the <br /> 1. KEI prop In addition, KEI <br /> sample depths (approximately 16 feet) . <br /> proposes an additional soil sample b h taken <br /> ab beneath ty (approxle <br /> point C2 to the maximumtaxdefinerthe vertical a;stent of the <br /> mately 24 to 27 feet) <br /> soil contamination. The undisturbed sample TSelsampleowilltbe <br /> from bulk material excavated by sealed with <br /> placed in clean, two-inch diameter brass stored in a cooled <br /> aluminum foil, plastic caps and tape, <br /> elivery to a certified laboratory. <br /> ice chest for subsequent d <br /> 2. KEI further proposes to define the late e C2 by collecting tank pit <br /> tamination in the vicinity al extent of con- <br /> of sSanlJoaquin Local Health Dis- <br /> sidewall samples required by ain be collected from <br /> trict. The undisturbed samples will ag <br /> bulk material excavated by backhoe as described above. Afteto <br /> r <br /> sampling, the tank pit walls will be excavated laterally for <br /> --� - - -- -- --_-- - iled <br /> --the sample-points, excavated soil a- in the -vic ni y_ of -_- <br /> ---- <br /> further sampling. The excavate are <br /> sample point C2 will be approximately 10 x 15 feat withproposed <br /> maximum depth of about 27 feet below grade. The <br /> additional excavation is shown on the attached Figure 2. <br />