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I <br /> I 4" TO "o" THK. CONCRETE <br /> PAD <br /> STANDARD STEEL TRAFFlCBOX <br /> 3 <br /> PLAN <br /> 3 <br /> 4" TO 6" THK, CONCRETE PAD <br /> EXISTING GRADE <br /> STANDARD STEEL TRAFFIC'IBOX <br /> LOCKING <br /> WELL CAP <br /> CEMENT SEAL <br /> BENTONITE PELLET SEAL f <br /> • r' 4-INCH BLANK PVC CASING I <br /> fi tr•• 1 <br /> ft �fi +• <br /> �f BOREHOLE <br /> 4—INCH PVC CASING (0.020—INCH SLOT) <br /> t i•i <br /> fi t:t J• <br /> GROUNDWATER SURFACE (TYPICAL) <br /> E rti til~ t. <br /> 1—INCH BLANK PVC CASING <br /> i �• r• f• <br /> i ti.t <br /> I rs tirti CLEAN IMPORTED SAND (LONE STAR <br /> COARSE AQUARIUM OR EQUIVALENT) <br /> � r• <br /> � Lf =• <br /> rti r: r. PVC BOTTOM CAP <br /> t ti•i i t•t <br /> J• r•r.�.r•f. <br /> t i•t•t•t•i• <br /> ri t�ti+t:i ti=+ CLEAN IMPORTED SAND (#3 LONE STAR <br /> OR EQUIVALENT) <br /> w r r•r.r•r-J- <br /> i <br /> BENTONITEICEMENT SEAL <br /> ft �1 fir lLr+ <br /> ` t+t.i•i•t. <br /> J• J•l•t•t•J• <br /> t �•t•t•t+t• <br /> rt t+i.t.t.i• 1-INCH PVC CASING (0.020—INCH SLOT) <br /> r• r.r+r-r•r• <br /> � �•i•t.t.t• <br /> r. r•r•r•r•r+ <br /> t•t t+i•t• <br /> r r•r.r•r.r. <br /> tL. l�r�l 1� �• <br /> i <br /> PVC BOTTOM CAP <br /> ' SECTION NOT TO SCALE <br /> .a <br /> FIGURE 4. TYPICAL DUAL COMPLETION-GROUNDWATER MONITORING/AIR SPARGING WELL <br />