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4 <br /> r SECOND STREET <br /> D a <br /> BUILDING <br /> t <br /> M`W- I <br /> ` LEGEND <br /> 11 ti t+'p \ -30.81 I Monitoring Well <br /> -30 30 Groundwater Elevation in Feet <br /> Wo Po 0 Vapor Extraction Well <br /> do d7a19,90 <br /> I • Soil Baring <br /> MW-1 MW-2 <br /> -30.30 : _ _ Potentiometric Surface Contour Line <br /> -30.8 (Dashed Where Inferred) <br /> IF rmer I Estimated Direction of Groundwater Flow <br /> Q spenser �d MW-7 <br /> ` Islands <br /> 0 • F MW-5 E -30.70 <br /> R1 I SB-1 0 <br /> Former ` ' POST Hydraulic Gradient— 0 005 ft/ft <br /> m / VEW-1 10 K UST -30.87 1 OFFI Contour Interval = 0 20 ft <br /> CE <br /> ad ` W <br /> unleBUILDING <br /> N I I I Unleadedd 1 <br /> SB-2 <br /> I I <br /> �t1 VEW-2 • _ <br /> , <br /> a <br /> =' MW-3O NOTES <br /> b Concrete <br /> Site Map After Monitoring Well Exhibit <br /> 30-73 Block Wall d <br /> l W By Tom O Morrow, Inc <br /> December, 1991 <br /> MW-6 <br /> (Updated May, 1993) <br /> Proposed Remediation <br /> O All Locations Are Approximate <br /> -30.61 , Equipment Enclosure 0 <br /> I <br /> 0 Cpl ugh <br /> 61°�34o2 S� <br /> TOO LIft j j g 0 30 60 <br /> Approximate Scale in Feet <br /> 0 �9� igg yg <br /> 5 <br /> Previous Groundwater Gradients, °M'"NB1 POTENTIOMETRIC SURFACE MAP FIGURE <br /> ` Dates, and Magnitudes Man n � Hwa February 10, 1995 <br /> f 0� March 3 ,sss 3 <br /> 0 OaI °0 0 001 f ft i0p1i n� F rmer Exxon Station RAS#7-0137 <br /> 3193 Ir°6' 3/93 ,, 1605 South El Dorado Street <br /> �� DAM Stockton, CA =93-47-81 <br />