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Cambria Environmental Technology, Inc BORING/WELL LOG
<br /> 270 Perkins Street
<br /> Sonoma, California 95476
<br /> Telephone (707) 935-4850
<br /> Fax (707) 935-6649
<br /> CLIENT NAME Shell BORINGIWELL NAME MW-18 80 and MW-18-120
<br /> JOB/SITE NAME Former Texaco Station/Unded Gas Station DRILLING STARTED 22-Au -02
<br /> LOCATION 440 W_Charter Way. Stockton DRILLING COMPLETED 23-Aug-02---
<br /> PROJECT
<br /> 3-Au -02PROJECT NUMBER 1399 WELL DEVELOPMENT DATE(YIELD) NA
<br /> DRILLER Boart Lonqyear GROUND SURFACE ELEVATION 9 91 f1 above msl
<br /> DRILLING METHOD Rotosornc Vibration -- - TOP OF CASING ELEVATION 9 41 It above mal
<br /> BORING DIAMETER 6- SCREENED INTERVAL 70 to 80 fb
<br /> LOGGED BY A Cool DEPTH TO WATER(First Encountered) 28 0 ft 22-Au -02
<br /> REVIEWED BY J Neely,_RG 6927 DEPTH TO WATER(Static) _ NA - 1
<br /> REMARKS MW-18-80 and MW-18-122 use the same CMT Tubtn
<br /> 4� Q r d A 0) ¢O LITHOLOGIC DESCRIPTION Z? WELL DIAGRAM
<br /> opo X Q �J O�
<br /> a U uj iJ U O
<br /> Con rete /1-03
<br /> Clayey SILT.(ML),dark yellowish brown(10YR 414),
<br /> moist,15%clay,75%silt, 10%fine sand,low to medium
<br /> plasticity
<br /> 00 5-
<br /> 00
<br /> 00 10 @ 10'-brown(10YR 413)
<br /> ML @ 12'-IM,(ML),brown(10YR 513), 10%clay,85%
<br /> silt,5%rine sand,low plasticity
<br /> 00 @ 14'-San SILT,(ML),yellowish brown(10YR 514),
<br /> 15 5%clay,70%silt,25%fine sand,no plasticity
<br /> 0 17'-yellowish brown(10YR 516),5%clay,80%silt,
<br /> 15%fine sand
<br /> 00 20 0 20'-Clayey SILT,(ML),dark yellowish brown(10YR
<br /> 414),15%clay,75%sill,10%fine sand,low to medium
<br /> plasticity
<br /> a
<br /> ti
<br /> 240
<br /> SM Silty SAND,(SM),dark grayish brown(2 5Y 412),moist, 250
<br /> 0 0 25 5%clay,35%silt 60%fine sand
<br /> s Sandy SILT,(ML),dark grayish brown(2 5Y 412),moist,
<br /> 0 5%clay,75%silt,20%fine sand,no plasticity
<br /> a'
<br /> 0)
<br /> 0 28'-SILT,(ML),dark gray(5Y 411),moist to wet,5%
<br /> clay,85%silt, 10%fine sand
<br /> 30-
<br /> 00 0 30'- moist,10%clay,85%silt,5%fine sand,low Portland Type
<br /> plasticity Ull Cement
<br /> 0
<br /> 'a
<br /> JJ
<br /> J
<br /> W 35
<br /> Continued Next Page PAGE i OF 4
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