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SHALLOW MONITORING WELL CONSTRUCTION DETAIL <br /> M <br /> E C A Total Depth of Boring 30 ft. <br /> B Diameter of Boring 8 in. <br /> H Drilling Method Hollow stem auger <br /> C Top of Box Elevation To be surveyed ft. <br /> �X Referenced to Mean Sea Level <br /> Referenced to Project-Datum <br /> D Casing Length 30 ft. <br /> Material Schedule 40 PVC <br /> F E Casing Diameter 2 in. <br /> F Depth to Top Perforations 10 ft. <br /> G Perforated Length 20 ft. <br /> Perforated interval from 10 to 30 ft. <br /> Perforation Size 0.02 in. <br /> D � <br /> H Surface Seal from 0 to 1.5 ft. <br /> A Seal Material Concrete <br /> I Backfill from 1.5 to 6 ft. <br /> Seal Material Neat cement <br /> J Seal from 6 to 8 ft. <br /> Seal Material Hydrated bentonite <br /> K K Gravel Pack from 8 to 30 ft. <br /> G - Pack Material Lonestar#3 sand <br /> = L Bottom Seal NA ft. <br /> Seal MaterialNA <br /> M Traffic-rated,water-resistant,steel well box <br /> Locking expandable well plug with Tosco lock <br /> Note: Depths measured from initial around surface. <br /> L <br /> B <br /> (2- <br /> Proposed <br /> ZProposed Shallow Monitoring Well Construction Details FIGURE <br /> Gettler - Ryan, Inc. Tosco Service Station No. 11192 <br /> 6747 Sierra Ct.,Suite J (925)551-7555 1403 Country Club Boulevard <br /> Dublin,CA 94568 Stockton,California <br /> JOB NUMBER' REVIEWED BY DATE REVISED DATE REVISED DATE <br /> 140245.08 May-02 <br />