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Cambria Environmental Technology, Inc BORING/WELL LOG <br /> 1144 - 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-5 <br /> JOB/SITE NAME BP 11193 DRILLING STARTED 08-Oct-99 <br /> LOCATION 3202 West Hammer Lane Stockton California 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 175- SCREENED INTERVAL NA <br /> LOGGED BY J Riggi DEPTH TO WATER(First Encountered) 13 5 ft(08-Oct-99) <br /> REVIEWED BY K Rahman, RG DEPTH TO WATER(Static) 13 5 ft(08-Oct-99L 1 <br /> REMARKS Hand au Bred to 5'b s boring is located 6' North of station bldq sidewalk 30'East of planter <br /> E z w a w U a LITHOLOGIC DESCRIPTION WELL DIAGRAM <br /> �p CL 1— w co ¢� Zz <br /> m0 Q w p� D Oa- <br /> C3 C/) o <br /> 05 <br /> SP ;AND,(SP),brown,dry, 10%silt,90%fine to medium <br /> grained sand, no plasticity,very high estimated 20 <br /> ermeabili <br /> Sandy Silty CLAY, (CL),grey to black,dry to damp, <br /> CL 45%clay,35%silt,20%sand,medium plasticity,very low <br /> estimated permeability <br /> 50 <br /> CB-5 ® 5 QJayey SAND,(SC),tan to brown,damp,35%clay, <br /> 5' 10%silt,55%fine to medium grained sand,no plasticity, <br /> low estimated permeability <br /> SC <br /> 100 <br /> CB-5 10 Sifty SAND,(SM),brown,damp, 15%silt,85%fine to <br /> 10' medium grained sand,no plasticity,very high estimated <br /> SM permeability <br /> 11 V 135 <br /> <0 05 CB-5 SAND, (SP), brown,wet, 10%silt,90%medium grained <br /> 13 5' rounded sand,no plasticity,very high estimated Portland Type <br /> 15 permeability <br /> lilt <br /> CB-5 @ = Hydropunch groundwater sample collected from 16-17 ft <br /> 16-17' — SF bgs <br /> 200 <br /> p CB-5 ® 20 5111v SAND,(SM),brown,wet,25%silt,75%fine <br /> c� 20' grained sand no plasticity,very high estimated <br /> permeability <br /> a <br /> LU <br /> v <br /> a' <br /> c� <br /> CB-5 @ 25 SM <br /> 25' <br /> - CB-5 <br /> 28 5' = Hydropunch groundwater sample collected from 29-30 ft 300 <br /> CB-5 @ 30 b s Bottom of <br /> 29-30' Boring @ 301t <br /> 0 <br /> c� <br /> J <br /> J <br /> W <br /> PAGE 1 OF 1 <br />