Laserfiche WebLink
MONITORING WELL CONSTRUCTION DETAIL <br /> E <br /> C A Total Depth of Boring 20 ft. <br /> M <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 /> nX Referenced to Mean Sea Level <br /> Referenced to Project-Datum <br /> D Casing Length 20 ft. <br /> Material Schedule 40 PVC <br /> E Casing Diameter 2 in. <br /> F Depth to Top Perforations 5 ft. <br /> G Perforated Length 15 ft. <br /> Perforated interval from 5 to 20 ft. <br /> Perforation Size 0.02 in. <br /> J H Surface Seal from 0 to 1.5 ft. <br /> A Seal Material Concrete <br /> I Backfill from 1.5 to 3.5 ft. <br /> Seal Material Neat cement <br /> J Seal from 3.5 to 4.5 ft. <br /> Seal Material Hydrated bentonite <br /> K K Gravel Pack from 4.5 to 20 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 /> B <br /> Proposed Monitoring Well Construction Detail FIGURE <br /> Ge#fler - Ryan, Inc. Tosco Service Station No. 11195 <br /> 6747 Sierra CL,suite J (925)551-7555 16500 South Interstate 5 3 <br /> Dublin,CA945613 Lathrop,California <br /> 71 <br /> JOB NUMBER REVIEWED BY DATE REVISED DATE REVISED DATE <br /> 140193.14 Sep-02 <br />