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l w <br /> r' <br /> s <br /> !i <br /> capped with teflon lined caps. Samples were labeled with stick-on, labels filled out in <br /> indelible ink, with the following information: <br /> Site name <br /> y Date collected <br /> Time collected <br /> Sample I.D. <br /> Sampler's initials' <br /> Analysis required <br /> E Samples were sealed into ziplock'baggies and placed with ice in an insulated chest for <br /> delivery with a chain-of-custody document to,,the WESTON Analytics' laboratory in <br /> Stockton,"California. This laboratory is certified by the State of California to perform the <br /> required analyses. Samples were submittedfor analysis by EPA Method 602 for <br /> benzene,,toluene,lfxylene, and ethylbenzene (BTXE), EPA Method 8015 (Modified) for <br /> total petroleum hydrocarbons as gasoline (TPH-G), and for the presence of coliform <br /> bacteria. <br /> The baler used to collect the samples was thoroughly decontaminated prior to and after <br /> each use to prevent cross contamination of samples. The thin nylon line used to louver <br /> the bailer was removed and discarded after use. Decontamination of the bailer consisted <br /> of an initial wash with an alconox/potable water solution followed by a thorough potable <br /> i water rinse which was followed by final rinse with distilled water. The pump that was <br /> used to purge the,wells was thoroughly cleansed prior to use and between uses at the <br /> well by inserting it.into a barrel containing an alconoxlpotable water mixture, washing the <br /> outside, and running the pump sufficiently to insure the inside of the pump and attached <br /> hoses received a`'good wash. " <br /> All water. purged 1 from the wells and water used to decontaminate equipment was <br /> containerized in 55 gallon drums, which were labeled and left at the site. All onsite work <br /> was performed ln'Level'D protection in accordance with WESTON's site specific Health <br /> and Safety Plan. <br /> K <br /> t� <br /> II <br /> I <br />' y <br /> a <br /> 'I <br /> A - 7 <br />