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t � <br /> GROUND SURFACE SLOPES AWAY <br /> FROM WELL FOR SURFACE DRAINAGE <br /> -,- <br /> CEMENT AND POWERED BENTONITE <br /> BLANK CASING, 2" SCHEDULE 40 PVC <br /> i <br /> ' BENTONITE SEAL <br /> SANC' PACK 24" ABOVE <br /> TOP OF WELL SCREEN <br /> INTERIO /EXTERIOR FLUSH <br /> THREADED COUPLING <br /> "w' :• SAN PACK' <br /> t5ti <br /> ri ry. k4-n <br /> 2" SLOTTED PVC PIPE' <br /> 8" DIAMETER BOREHOLE <br /> Y'.4a 7- <br /> CAP <br /> BENTONITE SEAL <br /> "NOTE: SLOT AND SAND SIZE TO BE <br /> DETERMINED DURING WZI INC. <br /> DRILLING OF THE WELL. BAKERSFIELD, CALIFORNIA <br /> HENRY HANSEN <br /> 200 S Cherokee Ln., Lodi,CA 95240 <br /> GROUNDWATER MONITOR <br /> WELL DESIGN <br /> DATE 9199 0842.0010 EXHIBIT 4 <br />