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Groundwater Monitoring Well Construction Workplan <br /> August 2023 <br /> 14-inch dia. steel security vault <br /> 0— A B C D <br /> �— Neat Cement (Sanitary Seal) <br /> 2.5-inch dia. SCH 80 PVC well casing <br /> 20— <br /> 40— <br /> • �"-A Bentonite Seal <br /> Common sand/gravel fill <br /> 130— <br /> yyi• Bentonite Seal <br /> 150- <br /> 160— 16-inch dia. borehole <br /> Gravel pack <br /> 2.5-inch dia. SCH 80 PVC well screen (0.030 slot) <br /> USGS Corcoran Clay (E-Clay) 170— 2.5-inch dia. SCH 80 PVC well casing and cap <br /> (approximate thickness) 175- <br /> - 230 — ,230— " Bentonite Seal <br /> Common sand/gravel fill <br /> - - '. r• ' Bentonite Seal <br /> 390— 2.5-inch dia, SCH 80 PVC well casing <br /> Gravel pack <br /> 2.5-inch dia. SCH 80 PVC well screen (0.030 slot) <br /> 440— <br /> 2.5-inch dia. SCH 80 PVC well casing and cap <br /> 45 _0 - Bentonite Seal <br /> 470— Commons1nd/gravel fill <br /> 690— Bentonite Seal <br /> 700- <br /> 710— - <br /> 2.5-inch dia. SCH 80 PVC well screen (0.030 slot) <br /> 11-inch dia. borehole <br /> Gravel pack <br /> 740— ' <br /> 2.5-inch dia. SCH 80 PVC well casing and cap <br /> 745— <br /> 750— <br /> '' Bentonite Seal <br /> 770— ,r <br /> Common sand/gravel fill <br /> 8-inch dia. borehole <br /> 1090— <br /> s Bentonite Seal <br /> 1110— ~4 <br /> 1130— " <br /> _ 2.5-inch dia.5CH 80 PVC well screen (0.030 slot) <br /> 1150— Gravel pack <br /> Final Design will be based 2.5-inch dia. SCH 80 PVC well casing <br /> 1200— <br /> u pon geophysical log 2.5-inch dia. SCH 80 PVC well screen (0.030 slot) <br /> 1250— <br /> i25S- <br /> 2.5-inch dia. SCH 80 PVC well casing and cap <br /> � . <br /> NOTE NaTTo stAtE 1450— <br /> Note: Base of Fresh Water approximately 1400'bgs <br /> Well Construction Typical Nested Monitoring Well <br /> Construction Details <br /> Tracy Subbasin For MW-203 <br /> Tracy Subbasin G E l AUGUST 2023 <br /> Figure 8 : Typical Nested Monitoring Well Construction Details <br /> GEI Consultants, Inc. 16 <br />