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Sampling Procedure and Analysis Schedule <br /> Five monitor wells were sampled. The sampling order was as follows: <br /> 1 MW-7 <br /> t 2 MW-6 <br /> 3 MW-4 <br /> 4 MW-5 <br />' S MW-8 <br />' To sample each well, a teflon bailer was attached to new nylon line and lowered into the well <br /> by hand The bailer was filled, brought to the surface and the water was carefully poured into <br /> laboratory prepared glass and plastic bottles and capped with teflon-lined caps Samples were <br />' labeled with stick-on labels filled out in indelible ink, with the following information: <br /> Site name <br />' Date collected <br /> Time collected <br /> Sample ID <br />' Sampler's initials <br /> Analysis required <br /> Quality control/quality assurance procedures consisted of the collection of a blind duplicate and <br /> an equipment decontamination nnsate sample The duplicate was collected concurrently with <br /> Sample MW-8 and was given the fictitious well/sample name MW-10 The decontamination <br />' sample (labeled MW-11) was collected from a bailer which had been cleaned by the normal <br /> decontamination procedure. De-ionized water was poured into the decontaminated bailer and <br /> then the water was poured from the bailer into the sample bottles This sample serves as a <br /> I check on the decontamination procedures for the bailer, ensuring that at has been effectively <br /> cleaned <br /> I Samples were placed with ace in an insulated chest for delivery with a chain-of-custody document <br /> to the WESTON Analytics' laboratory an Stockton, California. This laboratory is certified by <br /> the State of California to perform the required analyses Samples were submitted for analysis <br /> by EPA Method 8015 (Modified) for total petroleum hydrocarbons as gasoline (TPH-G) and <br /> EPA Method 8020 for benzene, toluene, ethylbenzene and xylenes (BTEX). The equipment <br /> decontamination sample and the duplicate sample were scheduled for analysis of only TPH-G <br /> Decontamination and Health and Safety Procedures <br /> All devices used to purge the wells and collect the water samples (bailers, etc.) were <br /> decontaminated prior to the second use and between use for each sampling. The bailers were <br /> I decontaminated by washing an an alconox-water mixture with a stiff bristle brush, rinsing with <br /> potable water and giving a final spray nnse with distilled water New polyethylene rope and <br /> thin nylon lane used to lower the bailer into the well was disposed of after each use <br /> nX\K TSWC!4ra WP A - 3 ICV14 7 <br />