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VVZ <br /> g INC <br /> '+ <br /> Minimum <br /> Constituent Maximum <br /> 1212-ml flapaml <br /> Total Petroleum Hydrocarbon as Gasoline non-detect 220 <br /> Total Petroleum Hydrocarbon as Diesel non-detect 17,000 <br /> Total Petroleum Hydrocarbon (TRPH) non-detect 41,000 <br /> Ethylbenzene non-detect 013 <br /> Toluene non-detect 0 029 <br /> Hydrocarbon impacted soil appears to be limited to the area immediately adjacent to the <br /> tank with analytical results indicating non-detection levels of hydrocarbons within 10 feet <br /> of the base and sidewalls of the concrete tank This relationship is consistent with the <br /> low-viscosity fuel oil known to have been kept in the concrete tank during the period the <br /> site was a winery <br /> Exhibit 13 depicts the estimated lateral extent of hydrocarbon impacted sod based on the <br /> cross-section geometries The hydrocarbon compounds exceed established CRWQCB <br /> levels for sod with shallow ground water <br /> Chlorinated hydrocarbon compounds are present in the subsurface immediately north of <br /> the concrete tank area The subsurface geometries of the chlorinated hydrocarbon <br /> impacted soil is depicted on Exhibits 10 to 12 Exhibit 13 depicts the estimated lateral <br /> extent of chlorinated hydrocarbon impacted soil based on the cross-section geometries <br /> Chlorinated hydrocarbon compounds were found to be present in the soil beneath the <br /> LCN site with concentrations that exceed the CRWQCB Primary MCL Water Quality Goals <br /> The MCL Goal for Water Quality was utilized for evaluating potential environmental impact <br /> based on a maximum leachability factor and ground water level being at approximately <br /> 60 feet Maximum soil concentrations of chlorinated hydrocarbon compounds were found <br /> to be present in the subsurface are as follows <br /> 12270010 013 Page 20 <br />