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Y <br /> FIELD PROCEDURES <br /> Ground Water Measuring, Purging,,_and Sampling <br /> The water Ievel in each well was measured with an electronic water level indicator The wells <br /> were checked for free product with a clean, Teflon® bailer prior to purging and sampling <br /> Purging of the wells included the removal of approximately three well volumes of water from <br /> each well Ground water samples were then collected with new polyethylene disposable bailers <br /> and decanted into appropriate sampling containers provided by the analytical laboratory The <br /> samples were immediately placed In an ice-chest containing Ice and submitted under chain-of- <br /> custody to a California Department of Health Services certified laboratory for analysis of Total <br /> Petroleum Hydrocarbons as gasoline (TPH-g) using modified EPA method 8015 and Benzene, <br /> Toluene, Ethylbenzene, and Total Xylenes using EPA method 502 A clean "travel blank" of <br /> distilled water was transported along with the water samples for the purposes of detecting cross- <br /> contamination from field activities <br /> Prior to sampling the wells, the sampling equipment was cleaned with a solution of Llqulnoxo <br />. and water to minimize the potential for cross-contamination between the wells All water <br /> removed during purging operations was placed in sealed, labeled 55 gallon drums and stored on- <br /> site <br /> `NM <br /> WALLACE•KUHL <br /> Recyckd paper Er ASSOCIATES INC <br />