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Water-tight <br /> traffic box <br /> DEPTH{fent} Ground surface Locking <br /> a �• <br /> �' mechanism <br /> Concrete <br /> 2 <br /> 4 <br /> -46' <br /> -50• Bentonite and <br /> Portland Cement <br /> 44 <br /> 46 <br /> Bentonite pellets <br /> 1 �l 4 in.Sch.40 <br /> 48 1' PVG blank casing <br /> y4. <br /> 1•max. <br /> — - Bore <br /> 50hole diameter 10.25 <br /> DEPTH <br /> — 3'> <br /> To WATER <br /> 52 A <br /> %'i= 4 in.SCh.40 <br /> PVC screen <br /> 54 <br /> 15 " <br /> — Fitter Pack <br /> 58 t x <br /> 60 — <br /> { — <br /> B2 { _ Threaded End Plug <br /> x —r oa <br /> Recommended 1 ft. gin: <br /> 64 minimum <br /> 66 <br /> 6$1 FA ENGINEERING, <br /> scIENCE,AND <br /> Figure A-1. Representative details of proposed monitoring IMTECHNOLOGY <br /> ---r- - -— -- — --- well (unconfined conditions), Chevron SS 4t Lafayette cirde <br /> . Lafayette.CA-94549-- - -- - - - . <br /> 9-1 X18; Stockton,California. <br /> i <br /> ...E <br /> E <br />