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i t complete when 1) the pH has stabilized to within plus or minus U.1 c..R units, 2) the temperature has stabilized to within plus or minus 0.50C and 3) the specific conductivity has stabilized to within plus or minus lot of the average of the three successive readings or 4) until three standing well casing volumes have been removed, whichever occurs last. A record of the purge activities, including the volume of water purged, the pump discharge rate and the start and finish time of purging will be maintained on the sample log sheet. once the well has been purged, the pump will be pulled from the well. Water samples will he collected by lowering a point source sampling device (such as a teflon bailer) into the well after - purging. The bailer will be lowered into the well using new, clean monofilament line. This line will not be reused. For each sample, water collected in the bailer will be poured directly from the bailer into the sample bottle. All samples will be contained in appropriate bottles, labeled, inserted. into ziplock baggies and placed with ice in an insulated cooler for delivery to the laboratory within 24 hours of collec- tion. All water samples will be labeled in the field with an indelible ink pen as they are collected. For each sample, the date and time of sample collection, the sampler's initials, the project name and the designated analyses will be recorded on the label and on the sampling log sheet. Water samples will be identified using the monitor well name. 7.4 Waiter Sample Anal tica Protocol Water samples collected from the monitor wells will be transported directly to WESTON Analytic's Stockton, California laboratory and submitted for chemical analysis utilizing EPA Methods 602 (aromatic volatile organics) and for total petroleum hydrocarbons as diesel utilizing EPA Method 3015. 8.0 Report Preparation Upon completion of the field program and receipt of all water analytical results from the laboratory, WESTON will prepare and submit a final report. This report will include a field report detailing the on-site procedures as employed, completion details of the monitor well and a figure showing the horizontal location of the newly installed well. All water sample analytical results and copies of the chain-of-custody records will be included. The report will provide an interpretation of the data and an evaluation regarding the need for future site work. - 10 -