Laserfiche WebLink
Dual-Nested Well Construction Diagram <br /> MW14A-B - MW17A-B <br /> �— Traffic-rated well lid <br /> Ground Traffic-rated well box encased in concrete <br /> Surface (0.25 inches raised above surrounding surface) <br /> 2' <br /> : .•• <br /> Casing protrusion with locking cap <br /> 2'bgs <br /> Well A <br /> 51 Borehole (12-inch 0) <br /> Annular seal (bentonite grout) <br /> Casing (Schedule 40 PVC, 2-inch 0) <br /> 7' bgs <br /> 2' Transition seal (bentonite chips) <br /> 9'bgs <br /> 1• <br /> 10' bgs <br /> 20' Perforated well screen <br /> Historical First Zone (0.02-inch slots, 2-inch 0, Schedule 40 PVC) <br /> Groundwater Level .-- — — <br /> (15'bgs-0412012) <br /> 5' <br /> 30' bgs <br /> Well B <br /> 17 Filter pack(20/30 silica sand) <br /> 47'bgs <br /> 5' <br /> Annular seal (bentonite grout) <br /> 52'bgs i Transition seal (bentonite chips) <br /> 2' <br /> 54' bgs <br /> 1, Notes: <br /> 55' bgs 1. Diagram not to scale. <br /> 2. Well screen depth and length may be <br /> Historical Second Zone adjusted in the field based on lithologic <br /> Groundwater Level -- observation and depth of groundwater. <br /> (57'bgs-1212000) •. <br /> • Figure 4: Groundwater Monitoring <br /> 15' Well Construction Diagram <br /> Rainwater Car Wash <br /> 420 West Yosemite Avenue <br /> Bottom cap Manteca, California 95336 <br /> 70'bgs DRAWN BY DATE: PROJECT <br /> GI Jul 2012 I Elder. 01 <br /> Ami Adini <br /> & Associates, Inc. <br />