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. Monitoring Well Elevation of PVC Depth to Groundwater Elevation of Gradient Direction <br /> Groundwater <br /> MW-4 2/12/00 13 56 feet 6 41 feet +715 East <br /> MW-4 4/28/00 13 56 feet 6 35 feet +721 East/Northeast <br /> MW-4 9/20/00 13 56 feet 7 87 feet +569 Northeast <br /> [MW-4 12/27/00 13 56 feet 8 61 feet +495 North <br /> MW-5 2/12/00 14 00 feet 6 77 feet +723 East <br /> MW-5 4/28/00 14 00 feet 6 78 feet +722 East/Northeast <br /> MW-5 9/20/00 14 00 feet 8 29 feet +571 Northeast <br /> MW-5 12/27/00 14 00 feet 9 02 feet +498 North <br /> MW-6 2/12/00 14 75 feet 7 26 feet +749 East <br /> MW-6 4/28100 14 75 feet 7 56 feet +7 17 East/Northeast <br /> MW-6 9/20/00 14 75 feet 8 99 feet +576 Northeast <br /> MW-6 12/27/00 1 14 75 feet 9 81 feet +494 North <br /> 4.0 FINDINGS <br /> . The results of the groundwater sampling indicate the following <br /> • The groundwater gradient is consistent with past monitoring event however <br /> there is a stronger northern component The gradient indicates a northern <br /> gradient direction with a slope of approximately 0 00003 Inches per foot <br /> Groundwater has dropped approximately one foot since the last monitoring <br /> event <br /> • MTBE levels are elevated northeast of the former tank as in the second quarter <br /> groundwater monitoring event <br /> i <br /> 50 CONCLUSIONS <br /> Based on the above findings, Avalon concludes the following <br /> i Further groundwater monitoring will be necessary to determine the most <br /> consistent gradient direction <br /> Aft Avalon Environmental Consultants <br /> Truck Plaza Protect#9627-001-5 <br /> Joes Tru <br /> January ck laza 4 15600 South Harlan Road <br /> Lathrop, California <br />