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Temperature, pH, and conductivity was measured for each bailer volume removed. Bailing proceeded for each well until pH, conductivity, and temperature parameters stabilized (approximately 5 gallons) and then the sample was taken, see Appendix B. The "purged" water was stored in one 55 gallon 17 E hazardous material drum, on site, within the fenced treatment compound. A representative water sample was obtained from the monitor wells using the dedicated disposable PVC bailer used during purging of the well. The water samples collected were stored in four-40 milliliter VOA vials . These water samples were placed into an insulated cooler with ice and, in the clients behalf, "chain of custody hand delivered" to Chemtech Analytical Laboratories (DHS certified #359) for chemical analyses . 3.0 RESULTS 3 .1 PRODUCT AND RECOVERY During the initial site assessment and during subsequent site visits, floating product was observed in monitor wells MW-1 and MW-3. Product thickness in MW-1 has ranged from 0 .021 to 1 .261 and from 0.6' to 1 .661 in MW-3. The recovered gasoline is amber yellow and appears to be fresh (no apparent degradation) . Involved regulatory agencies suggested that product recovery commence before an aquifer pump test be performed. Temporary submersible pneumatic pumps were installed into monitor wells MW-1 and MW-3 for product recovery on October 10 , 1989 . All "plumbing" (pump lines , electrical lines , etc. , ) necessary for operating the pumps are contained in underground schedule 40 PVC conduit. The product is pumped via this "plumbing" network to an above ground 1000 gallon "ConVault" tank. This "ConVault" tank was placed within the secured compound and has been approved by the Stockton City vire Dept. An automatic shut off switch has been installed to prevent the "ConVault" tank from over spilling if the tank becomes nearly full . Approximately 40 gallons of gasoline was recovered. A site visit conducted by WEGE personnel on January 12, 1990 indicated that MW-1 and MW-3 had been depleted of gasoline product. The product recovery system was removed in February, 1990, and the "ConVault" tank, until September, 1990 , was being used for the storage of the purged well water. During this latest monitoring round (11-27-90) 0.08' of a clear yellow floating product was again discovered in monitor well MW1 . This _ well was purged until depletion of the product was noted. Y approximately 1 quart of gasoline was recovered and placed into the 55 gallon drum storing the water "purged" prior to sampling . the wells. 4