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Table 1 <br /> Proposed Extraction Well Specifications <br /> Former Occidental Chemical Corporation Lathrop Facility <br /> Boring Well Total Well Target Screen Grout Seal Bentonite Transition Filter Pack <br /> Boring Depth Casing Screen (Z) <br /> Extraction Well Diameter Diameter Depth t)I Interval Interval Seal Interval Sand Interval Interval <br /> (ft bgs) (inches) Material (ft bgs) Material (ft bgs) (ft bgs) (ft bgs) (ft bgs)(inches) ( g g g (ft bgs) <br /> Stainless Stainless Steel <br /> EW-18A 16 100 10 Steel 95 304 Wire Wrap 70-95 0-50 50-55 55-60 60-100 <br /> 304 <br /> Stainless Stainless Steel <br /> FW-18B 16 190 10 Steel 185 304 Wire Wrap 110- 185 0-90 90-95 95-100 100-190 <br /> 304 <br /> Stainless Stainless Steel <br /> W-19 16 275 ]0 Steel 270 304 Wire Wrap 185-270 0-165 I65-170 170-175 175-275 <br /> 304 <br /> Notes: <br /> The actual construction details and depths may be modified based on geophysical logging and,field observations. <br /> (1)Screen slot size 0.055 <br /> (2)Filter pack size 8x16 <br /> ft bgs=feet below ground <br /> surface <br /> Page 1 of 1 11/13/2018 <br />