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TO 6" TNK, CONCRETE <br /> PAD ! <br /> I <br /> STANDARD STEEL T.-AFFfCBOX OR VAULT <br /> s <br /> PLAN <br /> 4" TO 6" THK. CONCRETE PAD <br /> EXISTING GRADE a <br /> w <br /> STANDARD STEEL TRAFFIC BOX OR VAULT <br /> LOCKING <br /> WELL CAP <br /> CEMENT SEAL <br /> BENTONITE PELLET SEAL <br /> 2—INCH BLANK PVC CASING <br /> f fir: t+ <br /> fti S1: 1. <br /> f' {f f• BOREHOLE <br /> fti fti �. <br /> S ti•ti <br /> fti ;rti r, 2—INCH PVC CASING (0.020—INCH SLOT) <br /> ti {•ti <br /> 1—INCH BLANK PVC CASING <br /> h tifti f. <br /> 1: tifti 1• <br /> 4 i•ti <br /> r: {f }• CLEAN IMPORTED SAND (LONE STAR <br /> COARSE AQUARIUM OR EQUIVALENT) <br /> 1w' ti fti r- <br /> f~ GROUNDWATER SURFACE (TYPICAL) <br /> fti fti �• <br /> r� r. PVC BOTTOM CAP <br /> 1 1•ti.ti 1 y <br /> f• 1.1•f+t•1• . <br /> �•�•`'~'�` CLEAN IMPORTED SAND (#3 LONE STAR <br /> rti S ti:ti:y y:• <br /> r .r.r.r.1.1• OR EQUIVALENT) <br /> S ti•ti•ti•ti•ti• <br /> r• •r.1.1•r•1• <br /> BENTONITE/CEMENT SEAL <br /> t� �t�f t%1S}• <br /> fti of t:1tif 1• <br /> ti ti.ti•ti•ti•ti• <br /> frti ;•ti•ti•ti•ti• 1—INCH PVC CASING (0.02NNCH SLOT) <br /> • 1.1•r•t•r• <br /> ti ••ti•ti,ti,ti, <br /> :• 1.1•r•1•t• <br /> 1.1 ti•ti•�• <br /> 1 •tiftiflfti tit• <br /> r• r•r•r•r•r•t- <br /> PVC BOTTOM CAP <br /> SECTION NOT TO SCALE <br /> FIGURE 3. TYPICAL DUAL COMPLETION—SOIL VAPOR EXTRACTION/AIR SPARGING WELL <br />