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C A M B R I A Ms. Michelle Le <br /> March 2, 2005 <br /> Personnel Present: <br /> • Michelle Le, Senior Environmental Health Specialist, SJCEHD <br /> • Aaron Hall, Deputy Fire Marshall, City of Stockton Fire Department, Fire Prevention <br /> Division <br /> • Mark Freitas,Construction Foreman, Paradiso <br /> • Martin Wills, Project Geologist, Cambria <br /> • Mark Edwards, Geologist, Krazan&Associates, Inc. <br /> Sample Date: December 14, 2004. <br /> © Tank Removal Observations: Cambria did not observe any holes, cracks, or failures in the <br /> double-walled fiberglass gasoline USTs or the steel waste oil UST. <br /> Gasoline UST Tank Pit and Waste Oil Tank Pit Soil Sampling: Cambria did not observe any <br /> evidence of hydrocarbon impact in the gasoline or waste oil tank excavations during tank removal <br /> or sampling activities. At the direction of Michelle Le of SJCEHD, Cambria collected nine soil <br /> samples (TP-1-15 through TP-9-15) from the gasoline UST excavation and one sample <br /> (WO-1-10)frombeneath the center of the waste oil UST(Figure 2). <br /> Dispenser and Product Piping Soil Sampling: Cambria did not observe any evidence of <br /> hydrocarbon impact in any soil samples collected from the dispenser areas and product piping <br /> locations. At SJCEHD's direction, Cambria collected three soil samples (DS-1-2, DS-2-4, and <br /> DS-3-4) beneath the three removed dispensers and three soil samples (P-1-5, P-2-4, and P-3-4) <br /> beneath removed piping. <br /> Sample Analyses: State-certified laboratory Kiff Analytical LLC of Davis, California analyzed <br /> the soil samples collected beneath the gasoline USTs, dispensers, and piping for total petroleum <br /> hydrocarbons as gasoline (TPHg), benzene, toluene, ethyl benzene, total xylenes (BTEX), and <br /> fuel oxygenates by EPA Method 8260B. Samples collected beneath the waste oil tank were <br /> analyzed for TPHg, BTEX, and chlorinated hydrocarbons by EPA Method 826013, for total <br /> petroleum hydrocarbons as diesel (TPHd) by EPA Method 8015 (Modified), for metals by <br /> EPA Method 601013, and for polychlorinated biphenyls (PCBs)by EPA Method 8082. <br /> Tables 1 and 2 summarize soil analytical results; Attachment B presents copies of the laboratory <br /> analytical reports. <br /> 2 <br />