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Figure 3 Schematic of Monitoring Well Construction NM-4 <br /> B. C. & D. Properties <br /> 1129 West Eleventh Street <br /> Tracy, California <br /> Project No. 01-08.1 <br /> VKNN <br /> Ground level <br /> -<--Water proof well box <br /> Loddng cap <br /> Cement grout (0-2') <br /> Well casing, 2*' (0-5') <br /> schedule 40 PVC <br /> —Bentonite annular seal(2-4') <br /> #3 sand filter pack (4-20') <br /> Ground water level <br /> (-10-12') <br /> 0.020" slotted well (5-20') <br /> casing, 2"schedule <br /> 40 PVC <br /> Total depth = 20' <br /> drawn 4-13-92 <br /> Geofogicaf Technics Inc <br />