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WSJ <br /> Working To Restore Nature <br /> Soil sampling, in conjunction with tank removal, detected petroleum product constituents in the <br /> samples from beneath Tank No 2 (Table 1) The constituents detected in the soil samples are <br /> typically derived from gasoline <br /> On August 13 & 14, 1990, RESNA (formerly WaterWork Corporation) drilled, logged, and <br /> sampled soil borings near the former UST location and installed a groundwater monitoring well <br /> in the approximate center of the former tank location (Figure 2) One soil boring (SBI) was <br /> drilled to 65 feet Three; soil borings (SB2, SB3 and S134) were drilled to 30 feet, and the fifth <br /> ' soil boring was drilled to 80 feet below grade and subsequently completed as a groundwater <br /> monitoring well (MW1) <br /> Laboratory analysts of the soils encountered in MW1, directly beneath the previous tank pit <br /> indicated high levels of gasoline hydrocarbons at depths between 10 and 20 feet The <br /> concentrations of gasoline hydrocarbons dropped off significantly with depth due to the low <br /> permeability of the soils Monitoring well MW 1 and soil boring SB2 samples contained <br /> significant amounts of hydrocarbon constituents Soil samples collected from soil borings SBI, <br /> ' S133 and SB4 contained trace to very low concentrations of gasoline range analytes Soil <br /> contamination is assumed to extend beneath the mausoleum adjacent to the former tank locations <br /> ' Table 1 summarizes soil analytical results In the analysis of the initial groundwater sample <br /> collected from monitoring well MWI, on August 23, 1990, elevated levels of petroleum <br /> hydrocarbon analytes were detected Table 2 summarizes groundwater analytical results <br /> ' On May 5 and 6, 1992, RESNA supervised the installation of two soil borings (MW2 and MW3) <br /> which were drilled to 76 feet below grade to provide for the installation of groundwater <br /> monitoring wells Drilling was conducted by Spectrum Exploration, (C57 license #512268) <br /> using a hollow-stem auger drill ng Cored soil Samples were collected above and below the _ <br /> ' water table at 5-foot intervals Selected soil samples were analyzed for BTEX utilizing EPA <br /> 150041\REPORT51WP-0594 WL 4 <br />