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• Water-tight <br /> DEPTH(feel) Ground surface V traffic box <br /> 0— it Locking <br /> A 7 mechanism <br /> 6— Concrete <br /> 12- <br /> - Portland Cement <br /> 4 in.Sch. 40 <br /> 24— PVC blank casing <br /> 30- 69.1' .49 Borehole diameter- 10.5- <br /> 36- <br /> 42— 4 in.Sch. 40 <br /> PVC screen <br /> 48— <br /> 64— <br /> 1.5 1 Bentonite pellets <br /> 60— <br /> 31 <br /> A <br /> 66- <br /> 72— Depth to Filter Pack <br /> Water 20' <br /> 78— <br /> Threaded End Plug <br /> or Slip Cap <br /> 84— <br /> go] <br /> EA ENGINEERING. <br /> SCIENCE.AND <br /> %NWWTECHNOLOGY <br /> 41 Lafayette Circle <br /> Lafayette,CA.134549 <br /> Figure E-2. Representative details of monitoring well EA6, Drawn Date <br /> Chevron SS 9-7780, Stockton, California. RQVI"e4 <br />