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0 <br /> were also detected in MW-1 but not In the other five wells on the subject property <br /> Monitoring wells MW-3 and MW-4 had minor detections of MTBE at 1 6 ppb and 3 8 ppb <br /> respectively MW-5 and MW-6 were non detect for all constituents tested <br /> TABLE III <br /> GROUNDWATER ELEVATIONS <br />` Monitoring Well Elevation of PVC Depth to Groundwater Elevation of Gradient Direction <br /> Groundwater <br /> MW-1 14 16 feet 6 80 feet +736 East <br /> MW-2 13 68 feet 6 24 feet +744 East <br /> MW-3 13 55 feet 6 34 feet +721 East <br /> MW4 13 56 feet 6 41 feet +715 East <br /> MW-5 14 00 feet 6 77 feet +723 East <br /> r MW-6 14 75 feet 7 26 feet +749 East <br /> Groundwater measurements taken at the subject property suggest that there is an eastward <br /> gradient direction at the subject property <br /> r � <br /> 60 FINDINGS <br /> The results of the Limited Phase II GWA indicate the following <br /> r A receptor survey of the subject property shows that no groundwater wel Is were <br /> located either visually or on record within a 2,000 foot radius of the subject <br /> property <br /> • Elevated levels of MTBE 240 ppb and 1,800 ppb were encountered In the <br /> northernmost wells MW-1 and MW-2, respectively <br /> • The groundwater in MW-1 contained low levels of BTEX, TPHg and TPHd in <br /> addition to MTBE and associated oxygenates The groundwater in MW-2 <br /> contained MTBE and associated oxygenates only <br /> 1 <br /> • The groundwater elevations suggest a eastern gradient direction <br /> I � <br /> Avalon Environmental Consultants 9627-001-2 <br /> Joes Truck Plaza 15600 South Harlan Road <br /> March 20, 2000 8 Lathrop,California <br /> I <br />