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Groundwater Monitoring Well Construction Workplan <br /> February 2024 <br /> Al 14-inch dia.steel security vault <br /> Q— A B C ❑ <br /> Neat Cement is.nitary Seal) <br /> 20— <br /> >: <br /> USGS Corcoran Clay(p-Clay) 13—tonite Clay Sea1(Chip,) <br /> (approximate thickness) <br /> 14Q— — e <br /> ;•��;' 2-5-inch dia.5CH 80 PVC well casing <br /> SO- <br /> 27Q— <br /> Fifter pack <br /> 2.5-inch dia.SCH 8o PVC well—en(0.030 slot) <br /> 290— 2.5-inch dia.SC 80 PVC well casing and cap <br /> 245— <br /> 2.5-inch dia.5CH 80 PVC well casing <br /> 315- <br /> -37Q— — ;ii•sT' ' Bentonite Clay Seal(Ch 1ps) <br /> Possible Corcoran Clay 16-inch dia.borehole <br /> a70— <br /> Fiher pack <br /> 2.5-inch dia.5CH 80 PVC well screen(0.030 slot) <br /> 44445 - 2.54nch dia.SC 90 PVC well casing and cap <br /> 455— <br /> - Be ntonite Clay Seal(Chips) <br /> 530- <br /> 54p— _ <br /> • Filter pack <br /> - 2.5-inch dia.5CH 80 PVC well screen(0.030 slot) <br /> 12-incli dia.borehole <br /> Notes: 565— 2.5•inch dia.5CH 8C PVC well casing and cap <br /> 585— <br /> Final Design will be based upon ='�= <br /> the geophysical log. 8-inch dia.borehole <br /> Final Design to be approved b <br /> 9 PP Y Ss;•••��-'�- <br /> EHD prior before Construction. ;�•'��i Benton ite Clay Seal(Chips/Pellets) <br /> Set of centralizers(3 per set)to be <br /> placed top and bottom of <br /> screens and between at 100 740 <br /> 7&0— Filter pack <br /> foot intervals with a minimum _ <br /> Of One mid-section Of Clay 2.5-Inchdia.SCH 80 PVCwell screen(0.030 slot) <br /> intervals. <br /> Base of freshwater approxi- 760 25-inch cim. CH so PVC web using and cap <br /> mately 800 Feet bgs 785— <br /> NoMNormacare 815— <br /> 850 - - Benton€te Clay Seal(Pellets) <br /> Well Construction Typical Nested Monitoring Well <br /> Tracy Subbasin Construction Details <br /> FC For MW-201 <br /> Tracy Subbasin CI ^^ August 2023 <br /> Figure 9: Typical Nested MW-201 Monitoring Well Construction Details <br /> GEI Consultants, Inc. 19 <br />