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14-inch dia.steel security vault <br /> 0— A B C D <br /> Neat Cement(Sanitary Seal) <br /> 20— <br /> .F' r 2.5-inch dia.SCH 80 PVC well casing <br /> ' •' r ti .�'. ., <br /> Bentonite Clay Seal(Chips) <br /> 0. <br /> J ' , <br /> 150— - <br /> 160— 16-inch dia.borehole <br /> Filter 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 /> - 7 Bentonite Clay Seal(Chips) <br /> 400— 2.5-inch dia.SCH 80 PVC well casing <br /> 410— <br /> _ Filter pack <br /> • 2.5-inch dia.SCH 80 PVC well screen(0.030 slot) <br /> 430— , , <br /> 2.5-inch dia.SCH 80 PVC well casing and cap <br /> 435- <br /> 445— - - <br /> 1 '.• • % Bentonite Clay Seal(Chips) <br /> 710- <br /> 720— <br /> .• 2.5-inch dia.SCH 80 PVC well screen(0.030 slot) <br /> 12-inch dia.borehole <br /> Filter pack <br /> 740— 2.5-inch dia.SCH 80 PVC well casing and cap <br /> Notes: 745— <br /> 750— <br /> Final Design will be based upon .; <br /> the geophysical log. ;` •` ' <br /> ;•.. =� •i 8-inch dia.borehole <br /> Final Design to be approved by •4 <br /> EHD prior before construction. C. J. <br /> 2.5-inch dia.SCH 80 PVC well casing <br /> Set of centralizers(3 per set)to be <br /> laced to and bottom of _ • <br /> p p • �� . ', Bentonite Clay Seal(Pellets) <br /> screens and between at 100 <br /> foot intervals with a minimum ;•,. �' <br /> of one mid-section of clay -` <br /> intervals. 1190— •' <br /> 1200— Filter pack <br /> _ 2.5-inch dia.SCH 80 PVC well screen(0.030 slot) <br /> Base of freshwater approxi- 1220— 2.5-inch dia.SCH 80 PVC well casing and cap <br /> mately 1400 feet bgs 1225- <br /> 1245— • �f _ Bentonite Clay Seal(Pellets) <br /> NOTE:NOTTO SCALE 1450— �'• <br /> Well Construction Typical Nested Monitoring Well <br /> Construction Details <br /> Tracy Subbasin LEON <br /> For MW-203 <br /> Tracy Subbasin GF I C.—Ita°t= AUGUST 2023 <br />