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Geosyntec Consultants <br /> Table 1 <br /> Summary of Well Construction Details <br /> GSH Lathrop Facility <br /> Lathrop,California <br /> Approximate Approximate <br /> Hydrated Type 11-V Grout <br /> Approximate Depth Approximate Filter Pack Transition Sand Bentonite Above Interval Above <br /> Drilling Borehole Diameter Well Diameter to Bottom Screen Interval Interval"' Interval Sand Bentonite <br /> Well ID Method (inches) (inches) (ft bgs) (ft bgs) (ft bgs) (ft bgs) (ft bgs) (ft bgs) <br /> EW-18A 1 Mud Rotary 1 16 1 10 1 100 1 70-95 1 60-100 1 55-60 1 50-55 1 0-50 <br /> EW-18B Mud Rotary 16 10 190 110-185 100-190 95-100 90-95 0-90 <br /> EW-19 Mud Rotary 16 10 275 185-270 175-275 170-175 165-170 0-165 <br /> Notes and Abbreviations: <br /> fl bgs=feet below ground surface <br /> (1)Filter pack size 8x16 <br /> 12/5/2018 Page I of 1 <br />