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<br /> Figure 4 Deep Monitoring Well Construction Schematic
<br /> C & B Equipment
<br /> !� . 7474 West 11th Street
<br /> Tracy, California
<br /> L Project No. 336.2
<br /> L• MW-1 MW-101 Proposed
<br /> ,,,, .", ,,, ��,. Ground level `•
<br /> ;;;; :::; ::: Watertight well box j
<br /> ,,,, ,,, ,,, „
<br /> 11%
<br /> %
<br /> Waterproof locking cap
<br /> ::: 11%,
<br /> ,,
<br /> "%%
<br /> C
<br /> ,,, ,:,,,
<br /> "I ,,,,,
<br /> ,,, ,,,,,
<br /> 1%%
<br /> :::z
<br /> Groundwater level(7/95) 1" :
<br /> ,,,,,
<br /> ,,,
<br /> 12" Dia. Borehole
<br /> ,,,,,
<br /> ::: %%%
<br /> ,,,
<br /> ,,, ,,,,,
<br /> "1 `,,,,,
<br /> %%"
<br /> C %1% 222„ Cement grout (TBA)
<br /> Well casing, 2"schedule 40 PVC
<br /> ::I
<br /> Total ,,,::
<br /> p
<br /> C de th %ll
<br /> 11% ::::`
<br /> (20') %
<br /> ::::: seat into aquatard if present
<br /> 1 f ' :
<br /> Existing well shown
<br /> for comparison 1 21 8" Dia. Borehole
<br /> ` :\
<br /> rBentonite transition seal (3 ft)
<br /> E. .
<br /> 0.020" slotted well casing,
<br /> C2" schedule 40 PVC (25)
<br /> #3 sand filter pack (TBA)
<br /> Total Silt Trap (2.5')
<br /> depth
<br /> (TBA) Incidental native
<br /> or slough
<br /> material
<br /> Cnot to scale
<br /> - Geologicaf Technics Inc. d.9W715
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