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`f Flush-Mount <br /> Christy Box Locking Well Cap <br /> Concrete Surface Seal � :.::•:�;..,��/�/ <br /> \\ \\ Cement/Bentonite Grout <br /> 1" di a. schedule 40 PVC pipe <br /> "d <br /> Blank Casing <br /> >� 21 — Bentonite Seal <br /> - x x X <br /> f.' " " x (minilrnim 2 feet) <br /> N % X <br /> „- N v ■ <br /> X"x x M <br /> x % <br /> xX%x <br /> xyx„ M Y Y Minimum 2 feet of <br /> _- 23'— x""XyX filter pack above top <br /> c' of screened casing <br /> Screened Casing Filter Pack <br /> 1_ <br /> (0.010 inch slotted casing) <br /> ;:,�-:•:. Threaded End Cap <br /> i= 3 0 <br /> (Not to Scale) <br /> Lid _ <br /> !:< AIR SPARGING POINT WKA NO: 1628.09 <br /> 404 WEST FREMONT STREET DATE: 8/01 <br /> WALLACE • KUHL & ASSOCIATES, INC. <br /> r- GEOTECHNICAL ENGINEERING Stockton, California PLATE NO: 4 <br /> GEOLOGIC & ENVIRONMENTAL SERVICES <br />