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Groundwater Monitoring Well Construction Workplan <br /> January 2024 <br /> �-- 14dnch dia.steel eectuityvauit <br /> 0— A B C D <br /> Neat Cement(sanitary seal) <br /> �ilk 5 � >� 20— <br /> �- ,' ,J•••c 2.5-Inch dia.SCH 80 PVC well casing <br /> 8emotile Clay Seal(Chips) <br /> '. <br /> 190- <br /> 200— ZEEEE 16-Inch dia.borehole <br /> Filter pack <br /> 2.5-mch dia.5CH 80 PVC well screen(0.030 slot) <br /> USGS Corcoran Clay(E Clay) 210— 2.5dnch dia.SCH So PVC well casing and cap <br /> /s2 q (approximate thickness) 220- <br /> 310— . : . <br /> L"Y 230— <br /> T ).� Benlonite Clay Seal(Chips) <br /> 390— t <br /> 490— <br /> 500— 2.5 Inch dia.SCH 90 PVC well casing <br /> Filter pack <br /> 2.5-mch dia.SCH 90 PVC well sueen(0.030 slop <br /> 50- <br /> 520— 2.5-Inch dia.SCH 80 PVC well casing and cap <br /> rko{eS nS 530— 0entpnite clay seal(Chips) <br /> 730—T <br /> 740— <br /> ® 2.5-Inch dia.SCH 80 PVC well screen(0.030 slot) <br /> 12-Inchdia.hen hole <br /> Notes: filter pack <br /> 750— 7s Inch dia.SCH 80 PVC well casing and cap <br /> Final Design to be based on 760- <br /> geophysical surveys. 770— <br /> Final design to be approved by flinch dia.borehole <br /> EHD prior to construction. <br /> Set of centralizers(3 per set)to Gh� - <br /> beplacedtopandbottomof +' •. zs-mm dia.sCll90 Svc well casing <br /> screens and between at 100 <br /> foot Intervals with a minimum II 'r' Benlonite Clay Seal(Pellets) <br /> of one mid-section of clay <br /> intervals. <br /> Base offreshwaterapproxl- 1060— n0erpack <br /> mately 1800 feet bgs <br /> 1070 2.S inch dia.SCH 80 PVC well screen(0.030slot) <br /> 1080— <br /> 1090— <br /> 25-Inch dia.SCH 80 PVC well casing and cap <br /> r 100—�._s Bemonile Clay Seal(Pellets) <br /> BPrc lrorrosuH <br /> 0_ <br /> Well Construction ;nslk( , ti-�) . I �11 Typical Nested Monitoring Well <br /> Tracy Subbasin C;F YC ' tl //i111 Construction Mi Details <br /> Tracy Subbasin A( ;� G E I September 20, 2023 Figure 8 <br /> Figure 8: Typical Nested Monitoring Well Construction Details <br /> *k r'k Ixil'Ptii <br /> GEI Consultants, Inc. U 18 <br />