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Sampling Procedure and Analysis Schedule Five monitor wells were sampled The sampling order was as follows* 1 MW-5 ' 2 MW-6 3 MW-7 4 MW-4 ' S MW-8 To sample each well, a teflon bailer was attached to new nylon line and lowered into the well ' by hand. The bailer was filled, brought to the surface and the water was carefully poured into laboratory prepared glass and plastic bottles and capped with teflon-lined caps Samples were ' labeled with stick-on labels filled out in indelible ink, with the following information Site name ' Date collected Time collected Sample TD ' Sampler's initials Analysis required Quality control/quality assurance procedures consisted of the collection of a blind duplicate and an equipment decontamination rinsate sample The duplicate was collected concurrently with Sample MW-8 and was given the fictitious well/sample name MW-10 The decontamination ' sample (labeled MW-11) was collected from a bailer which had been cleaned by the normal decontamination procedure. De-ionized water was poured into the decontaminated bailer and then the water was poured from the bailer into the sample bottles This sample serves as a ' check on the decontamination procedures for the bailer, ensuring that it has been effectively cleaned ' Samples were placed with ice in an insulated chest for delivery with a chain-of-custody document to the WESTON Analytics' laboratory in Stockton, California This laboratory is certified by the State of California to perform the required analyses. Samples were submitted for analysis ' by EPA Method 8015 (Modified) for total petroleum hydrocarbons as gasoline (TPH-G) and EPA Method 8020 for benzene, toluene, ethylbenzene and xylenes (BTEX). The equipment decontamination sample and the duplicate sample were scheduled for analysis of only TPH-G ' Decontamination and Health and Safety Procedures ' All devices used to purge the wells and collect the water samples (bailers, etc.) were decontaminated prior to the second use and between use for each sampling The bailers were decontaminated by washing in an alconox-water mixture with a stiff bristle brush, rinsing with ' potable water and giving a final spray rinse with distilled water. New polyethylene rope and thin nylon line used to lower the bailer into the well was disposed of after each use. ' SrFX\RPTSWC 3RD WP A - 3 MAN"