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SHALLOW MONITORING WELL CONSTRUCTION DETAIL <br /> — <br /> M 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 /> 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 002 in <br /> J <br /> H Surface Seal from 0 to 1 5 ft <br /> A Seal Material Concrete <br /> I Backfill from 15 to 6 ft <br /> Seal Material Neat cement <br /> J Seal from fi to 8 ft <br /> Seal Materia! Hydrated bentonite <br /> K K Gravel Pack from 8 to 30 ft <br /> Pack Material Lonestar#3 sand <br /> G =_ <br /> L Bottom Seal NA ft <br /> Seal Material NA <br /> M Traffic rated,water-resistant, steel well box <br /> Locking expandable well plug with Tosco lock <br /> Note Depths measured from initial ground surface <br /> L <br /> MB <br /> Proposed Shallow Monitoring Well Construction Details FIGURE <br /> Gettler - Ryan, 1nC. Tosco Service Station No 11192 <br /> 6747 SierraGt Suite (925)551 7555 1403 Country Club Boulevard 9 <br /> Dublin CA 94568 Stockton, California <br /> JOB NUMBER REVIEWED BY DATE REVISED DATE REVISED DATE <br /> 140245 08 may-02 <br />