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�. N. KLE(NEELDER&ASSOCIATES <br /> File: W-2006-1 <br /> December 16, 1585 <br /> Page 4 <br /> description of the soils encountered are presented on <br /> Plates 5 through 12, with a copy of the Unified Soils <br /> Classification system (used to identify the soil) <br /> included as Plate 4. The soils encountered during <br /> - drilling consisted of sandy silt, silty sand, and sand. <br /> B. Monitoring Wells <br /> - Ground water monitoring wells (MW-1 through MW-4) were <br /> constructed in four of the soil borings at the <br /> completion of drilling and logging of each boring. The <br /> ground water wells were completed with four-inch inside <br /> diameter threaded joint PVC pipe with well screen <br /> Sections perforated with 0.020 inch factory cut slots <br /> from 24 feet to' approximately 50 feat below the ground <br /> v surface. The annular space between the pipe and the <br /> wall of the boring was backfilled with #3 Monterey sand <br /> to a minimum of 3 feet above the top of the perforated. <br /> _. section. A one foot bentonite plug was placed above the <br /> sand pack to provide a seal against surface water <br /> infiltration. The remaining annular space was grouted <br /> with cement to the ground surface. 4 locking Christy <br /> Box was installed at each well location. Construction <br /> information of each well is shown on Plates 5 through <br /> 12. These wells were surveyed and developed with a <br /> ----- -------- <br /> - - -- - submersible pump one week after their completion. The <br />