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Page 3 <br /> Well Development and Sample Collection (Water) <br /> On September 11, 1991, the monitoring wells were sampled for groundwater The <br /> wells were developed using a PVC hand bailer to remove 5 gallons per well (8-11 <br /> well volumes). Purge and development water was placed in 5 gallon PVC pails, <br /> which were placed with the soil drums in the fenced dumpster area. Water levels <br /> were measured before and immediately after development using a water level tape <br /> meter. <br /> Table 1 <br /> Well Elevations and Water Levels <br /> Water Readings Taken September 11, 1991 <br /> Elevations taken in Feet <br /> Well #1 Well #2 Well #3 Well #4 <br /> Well EIevation 3312 3322 3355 33.66 <br /> Depth to GW -28.92 -2879 29.21 -29.51 <br /> GW Elevation 4.20 443 4.34 415 <br /> Depth After Development-28 96 -2890 -2948 -2972 <br /> Amount Change -004 -011 -0.27 -0.21 <br /> The groundwater flow direction on September 11, 1991, was toward the southwest <br /> (see Figure 3 ). Samples were collected using a clean PVC bailer Water was placed in <br /> three 40 milliliter VOA vials so that no air remained in each vial. The vials were <br /> labeled, taped together, placed in plastic zip lock bags and placed on ice in a cooler. <br /> Chain of Custody forms accompanied the samples to the laboratory <br /> Laboratory Analysis Results <br /> Six soil samples were taken from the boring (MW 4), one every five feet and a final <br /> sample just above the groundwater at 29 feet. As seen in the table below, no <br /> petroleum hydrocarbons or constituents were present in the soil samples. <br /> Parker Environmental Services 4185 Rialto Court Pittsburg CA 94565-6116 <br /> Phone (510) 439-1024 Fax (510) 439-2566 <br />