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' © 27 Perk Es 5tree ental nology, Inc BORING/YY ELL LOG
<br /> 270 Perkins Street
<br /> Sonoma, California 95476
<br /> Telephone (707) 935-4850
<br /> Fax (707)935-6649
<br /> CLIENTNAME Shell BORING/WELL NAME MW-18-80 and MW-18-120
<br /> JOB/SITE NAME Former Texaco Station/United Gas Station DRILLING STARTED 22-Aua-02
<br /> LOCATION 440 W Charter Way Stockton DRILLING COMPLETED 23-Aug-02
<br /> Continued from Previous Page
<br /> E in ~ = to U U n
<br /> L m o ¢ X W a N a 0 LITHOLOGIC DESCRIPTION z WELL DIAGRAM
<br /> y W c9 Ov w
<br /> 0
<br /> 0 0 ® 35'-Clayey SILT (ML),dark grayish brown(2 SYR
<br /> 4/2),20%clay,70%silt,10%fine sand,medium plasticity
<br /> ML ® 38'-SILT,(ML),brown(7 5YR 4/4)and dark
<br /> greenish gray(5G 4/1),10%clay,80%silt,10%fine sand,
<br /> 40 low plasticity
<br /> 00 ®40'-dark greenish gray(5GY 411),5%clay,85%silt,
<br /> 10%fine sand,no plasticity
<br /> O 43'-Clayey SILT.(ML),20%clay,75%silt,5%fine
<br /> sand,medium plasticity
<br /> 29 45 ®45'-olive gray(5Y 4/2),15%clay,75%silt, 10%fine
<br /> sand,low to medium plasticity
<br /> rd 48'-dark yellowish brown(10YR 3/4),20%clay,70%
<br /> silt,10%fine sand,medium plasticity
<br /> 64 —50-
<br /> 520
<br /> 0520
<br /> Silty SAND,(SM),very dark gray(N 37),wet,15%silt,
<br /> SM 85%fine to medium sand
<br /> 540
<br /> ML Sandy SILT,(ML),dark greenish gray(10GY 3/1),
<br /> 225 55 moist 5%da 60%silt 35%fine sand no lasfia 550
<br /> Silty SAND,(SM),dark greenish gray(10GY 4/1),wet,
<br /> 5%clay,20%silt,75%hne to medium sand
<br /> SM
<br /> 590
<br /> SanU SILT.(ML),dark greenish gray(5GY 4/1),wet,
<br /> 746 60 55%silt,45%fine to medium sand,no plasbcfty
<br /> 0 61'-Clayev SILT,(ML),dark greenish gray(10GY
<br /> 411),moist,15%clay,75%silt,10%fine to medium sand,
<br /> low to medium plasticity
<br /> v
<br /> Bentonite Seal
<br /> t 96 65 @ 65'-Sandy SILT.(ML),wet,60%sift.40%fine sand.
<br /> LL no plasticity
<br /> 0
<br /> a'
<br /> t�
<br /> Monterey
<br /> 27 ®69'-Clayey Sandy SILT.(ML),dark greenish gray Sand#2/12
<br /> a 70 (10GY 3/1),moist to wet,20%clay,65%silt, 15%fine
<br /> sand,medium plasticity
<br /> 0
<br /> S
<br /> w 75
<br /> 3
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