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FIELD PROCEDURES <br /> Groundwater Measuring, Pining, and Sampling <br /> The water level in each well was measured with an electronic water level indicator The wells <br /> were checked for free product with a clean, disposable polyethylene bailer prior to purging and <br /> sampling Purging of the wells included the removal of approximately three well volumes of <br /> water from each well Groundwater samples were then collected with new polyethylene <br /> disposable bailers and decanted into appropriate sampling containers provided by the analytical <br /> laboratory The samples were immediately placed in an ice-chest containing Ice and submitted <br /> under chain-of-custody to a California Department of Health Services certified laboratory for <br /> analysis of Total Petroleum Hydrocarbons as gasoline (TPH-g) using modified EPA method 8015 <br /> and Benzene, Toluene, Ethylbenzene, and Total Xylenes using EPA method 602 A clean "travel <br /> blank" of distilled water was transported along with the water samples for the purposes of <br /> detecting ci oss-contamination from field activities <br />• Prior to sampling the wells, the sampling equipment was cleaned with a solution of Liquinoxo <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 /> `0% <br /> WALLAC15 KUHL <br /> HendLd paper &ASSOCIATES INC <br />