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Dual-Nested Well Construction Diagram Well Construction Cross-Section <br /> 9 e MW14A-B-C -MW16A-B-C (Shallow Zone) <br /> OCN A <br /> mm V ce N awehde Pervnebr <br /> Traffic-rated well lid <br /> - <br /> LL Traffic-rated well box <br /> 0 3 it t- ¢ encased in concrete <br /> (0.25 Inches raised above <br /> surrounding surface) <br /> 2 Sark Casing protrusion with locking cap ? PwVfrasfion seamnka sea <br /> Well A <br /> • Borehole(6-inchO) <br /> Annular seal(beefeater grout) <br /> 4 Casing(Schedule 40 PVC,1-inch 0) <br /> Transition seal(bentonite chips) `Av. <br /> H J e Filter pack(20130 silica&nd) <br /> --- - -------------- <br /> ------- --- - -- Perforated well screen zwreq PVcwa <br /> (0.02-inch slots,1-Inch CaaruSoeen 1o3sk 2sa in 8 <br /> Schedule 40 PVC) - <br /> u`= 30 Bottom cap zone B WC Wes Cmiirysrseen <br /> Well B \ <br /> 3t <br /> Casing(Schedule 40 PVC,14nch 0) zone c we wee casin,,screen <br /> Annular seal(benfonier great) <br /> 49 Well C <br /> `u4 Transition seal(bentonite chips) <br /> -' <br /> `c Filter pack(20130 silica sand) s <br /> m <br /> `o <br /> v s 55 <br /> 3„ 9--- --- -- -------- ;-: -.-= Perforated well ccreen ° <br /> (0.02-Inch slots,1-inch 0, <br /> VA Schedule 40 PVC) <br /> 70 Bottom cap <br /> 71 <br /> Annular seal(bentonite grout) Scale: <br /> 1 In.-1 In. <br /> 129 0 1.0 2.0 <br /> 34 Transition seal(bentonite chips) <br /> NOTES Figure Filter pack(20130 r1'ma sae ) Groundwater Monitoring <br /> a SL___ ___ __ _____ -�_ Perforated well screen 1.Well screen depth and length may be adjusted in the field based on lithologic observation Well Construction Diagram <br /> t (0.02-inch slots,1-inch O, and depth to groundwater. Rainwater Car Wash <br /> Schedule 40 PVC) 420 West Yosemite Avenue <br /> w 145 Bottom cap 2.Well casings will be strapped together with cable ties at minimum of one(1)cable lie per Manteca.California 95336 <br /> .. . len(10)linear feet of casing during well installation(between lowering of casing into borehole as e.. eu vst sols eider. m <br /> 146 and installation of filter pack/seals)to ensure casings remain true to center and provide <br /> Figure not drawn to wale. <br /> minimum 2 inches of filter pack on every side. Ami Adini <br /> a` &Associates,Inc. <br />