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IW-1 and IW-2 <br /> GROUND SURFACE <br /> APPROXIMATE ELEVATION 62-64 FEET NAVD88 <br /> BELOW GRADE UTILITY VAULT <br /> NEAT CEMENT GROUT <br /> BOREHOLE DIAMETER:10" <br /> 6"SCHEDULE 80 PVC WELL CASING <br /> TOP OF SEAL:43 FEET BGS TWO FEET RANSITION SEAL(HYDRATED BENTONITE) <br /> !1 TWO FEET TRANSITION SAND <br /> TOP OF SCREEN:50 FEET BGS - <br /> k3 FILTER SAND(OR EQUIVALENT) <br /> 6"STAINLESS STEEL SCREEN <br /> 0.030"SLOT SIZE <br /> BOTTOM OF SCREEN:150 FEET BGS <br /> TOTAL DEPTH:154 FEET BGS <br /> SILT SUMP(PVC) <br /> uA' �/'�� REVISED WELL INSTALLATION WORK PLAN NORTH <br /> NOTES ■Y��LAREA GROUNDWAWTER INTERIM REMEDIALACTION <br /> 1.CONSTRUCTION DETAILS PRESENTED ARE PROPOSED `w,\`R RIPON,CALIFORNIA <br /> AND MAY BE ADJUSTED BASED ON FIELD CONDITIONS. <br /> PROPOSED INJECTION WELL <br /> BGS=BELOW GROUND SURFACE CONSTRUCTION DETAILS <br /> PVC=POLYVINYL CHLORIDE <br /> FEBRUARY 2022 FIGURE 4 <br />