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1 <br /> • <br /> 1 TABLE Il <br /> HISTORICAL GROUNDWATER INFORMATION <br /> (Bold designates most recent measurements) <br /> 1 Monitoring Well Elevation of PVC Depth to Groundwater Elevation of Gradient Direction <br /> Groundwater <br /> FMW <br /> -12112/00 14 16 feet 6 80 feet +736 East <br /> -1 4/28/00 14 16 feet 700 feet +7 16 East/Northeag <br /> MW-2 2/12/00 13 68 feet 6 24 feet +744 East <br /> 1 MW-2 4/28/00 13 68 feet 6 58 feet +710 East/Northeast <br /> MW-3 2/12/00 13 55 feet 6 34 feet +721 East <br /> MW-3 4/28/00 13 55 feet 6 44 feet +7 11 East/Northeast <br /> MW-4 2/12/00 13 56 feet 6 41 feet +7 15 East <br /> 1 MW4 4/28/00 13 56 feet 6 35 feet +721 Northeast <br /> MW-5 2112/00 14 00 feet 6 77 feet +723 East <br /> MW-5 4/28100 14 00 feet 6 78 feet +7 22 East/tVortheast <br /> MW-6 2/12/00 14 75 feet 7 26 feet +749 East <br /> 1 MW-6 4/28/00 14 75 feet 7 56 feet +7 17 East/Northeast <br /> 40 FINDINGS <br /> 1 The results of the groundwater sampling indicate the following <br /> • The groundwater gradient is not consistent with the past monitoring event The <br /> gradient now indicates a north/northeast gradient direction with a slope of <br /> 1 approximately 0 0005 Inches per foot <br /> • MTBE levels are higher In the former tank pit area as apposed to the higher <br /> readings found in the previous monitoring event in monitoring well MW-2 <br /> which Is located on the northern boundary of the subject property <br /> 1 <br /> 50 CONCLUSIONS <br /> Based on the above findings, Avalon concludes the following <br /> Further groundwater monitoring will be necessary to determine the most <br /> consistent gradient direction <br /> M& Avalon Environmental Consultants Project# 9627-001-3 <br /> Joes Truck Plaza 15600 South Harlan Road <br /> May 20, 2000 3 Lathrop,California <br /> 1 <br />