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FIELD PROCEDURES <br /> Groundwater Measurin Put ging, and Sam lin <br /> The water level in each well was measured with an electronic water level indicator The wells <br /> were checked for free product with clean, disposable polyethylene bailers prior to purging and <br /> sampling When free product was not observed, groundwater from monitoring wells MW1 <br /> through MW4 was purged with a clean submersible pump Purging of the wells included the <br /> removal of approximately three well volumes of water from each well Groundwater samples <br /> were then collected through the pump tubing and decanted into appropriate sampling containers <br /> provided by the analytical laboratory The samples were immediately placed in an ice chest <br /> containing ice Samples were transported under chain-of-custody documentation to a California <br /> Department of Health Services-certified laboratory for analysis of Total Petroleum Hydrocarbons <br /> as gasoline (TPH), Benzene, Toluene, E thylhenzene, and Total Xylenes (BTEX), and the <br /> oxygenate compounds Methyl Tert-Butyl Ether(MTBE), Drsopropyl ether (DIPS), Ethyl-t-butyl <br /> ether (E TBE), Tert-amyl methyl ether (TAME), and Teri-Butanol using EPA Method 8260B <br /> The sampling equipment was cleaned with a solution of Liqui-nox® detergent and water between <br /> each well to minimize the potential for cross-contamination All water removed during purging <br /> operations was placed in sealed, labeled 55-gallon drums and stored on-site <br /> WALLACE KUHL <br /> Ke'yr[ed parer &ASSOCIATES INC <br />