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Cambria Environmental Technology, Inc BORING/WELL LOG <br /> 1 144 - 65th 5t <br /> Oakland, CA 94608 <br /> Telephone (510) 420-0700 <br /> Fax (510) 420-9170 <br /> . CLIENT NAME BP Oil Company _ BORINGIWELL NAME CB-3 <br /> JOB/SITE NAME BP-11193 DRILLING STARTED 08-Oct-99 <br /> LOCATION 3202 West Hammer Lane, Stockton Califomia DRILLING COMPLETED 08-Oct-99 <br /> PROJECT NUMBER 852-1530 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER Precision Sampling C-57 636387 GROUND SURFACE ELEVATION NA <br /> DRILLING METHOD CPT TOP OF CASING ELEVATION NA <br /> BORING DIAMETER 1 75" SCREENED INTERVAL NA <br /> LOGGED BY J Riggi DEPTH TO WATER(First Encountered) 13 5 ft(08-Oct-9_9� � <br /> REVIEWED BY K Rahman, RG DEPTH TO WATER(Static) 13 5 ft(08-Oct-99) 1 <br /> REMARKS Hand au Bred to 5'bgs boring located 11'East of VW-1 <br /> N <br /> 0 <br /> �H W H po Y 'U Qy <br /> E O Z a Lu w a O LITHOLOGIC DESCRIPTION z= WELL DIAGRAM <br /> ¢ mUU ¢ w =� = C7� OUa <br /> c0 `n o <br /> A�E!HALJ 05 <br /> SM Silty SAN12,(SM),brown,dry,20%silt,80%medium <br /> grained sand,no plasticity,very high estimated 20 <br /> \permeabilit/L — — J <br /> C�tyCLAY (CL),grey to black dry to damp,50%clay, <br /> CL 40%silt, 10%sand, medium plasticity,very low estimated <br /> permeability_ _ _ _ _ _ _ _ _ _ _ _ 50 <br /> CB-3 @ 5 Clayey SAND, (SC),brown,damp,30%clay, 10%silt, <br /> 5' 60%fine to medium grained sand,low plasticity, low <br /> estimated permeability <br /> Sc <br /> - - - - 100 <br /> CB 3 @ Silty SAND, (SM),brown,dry,20%silt,80%fine to <br /> medium grained sand,no plasticity,very high estimated <br /> 105, permeability <br /> 1 <br /> 27 CB-3 @ @ 13 5'-wet <br /> 135, 15 SM <br /> C13-3 @ = Hydropunch groundwater sample collected from 16-17 ft <br /> 16-17' — bgs Portland Type <br /> Ili l <br /> 200 <br /> CB-3 @ 20 Silty SAND w/Clay, (SM),brown,wet, 15%clay,20% <br /> 20' silt,65%fine grained sand,no plasticity,medium <br /> estimated permeability <br /> 0 <br /> LU <br /> c9 <br /> J <br /> Q <br /> CB-3 @ 25 <br /> 25' <br /> SM <br /> a <br /> m <br /> c� <br /> M CB-3 a 30 <br /> 30' <br /> J, Hydropunch groundwater sample collected from 34-35 ft <br /> bgs <br /> CB-3 @ = 350 <br /> 0 34-35' 35 — 1 L — — — — — — — — — __. — — — — — Bottom of <br /> Q <br /> Boring @ 35 ft <br /> J <br /> J <br /> J <br /> W <br /> PAGE 1 OF 1 <br />