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Cambria Environmental Technology, Inc BORING/WELL LOG <br /> 1144 -65th St <br /> Oakland, CA 94608 <br /> Telephone (510) 420-0700 <br /> Fax (510) 420-9170 <br /> CLIENT NAME BP Oil Company BORINGIWELL NAME MW-1 R <br /> JOBISITE NAME BP-11193 DRILLING STARTED 12-Jun-00 <br /> LOCATION 3202 West Hammer Lane, Stockton,California DRILLING COMPLETED 12-Jun-00 <br /> PROJECT NUMBER 852-1530 WELL DEVELOPMENT DATE(YIELD) 12-Jun-00 (55 gallons <br /> DRILLER V&W_Drilling GROUND SURFACE ELEVATION 478 <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 4 53 ft <br /> BORING DIAMETER 10" SCREENED INTERVAL 10 to 30 ft b s <br /> LOGGED BY J Jones DEPTH TO WATER(First Encountered) 14 0 ft(12-Jun-00) <br /> REVIEWED BY K Rahman, RG DEPTH TO WATER(Static) 10 9 ft(13-Jun 00) 1 <br /> REMARKS Hand angered to 5'bgs, located 3'S of the USTs,38' E of station budding <br /> co LU z <br /> � O a CL X a C ¢O LITHOLOGIC DESCRIPTION F= WELL DIAGRAM <br /> U U W <br /> ❑ <br /> ASPHALT 0 5 <br /> Silty SAND (SM) 10%clay, 250/.silt 65%fine to <br /> medium grained sand low plasticity high estimated <br /> permeability <br /> Portland Type <br /> Ili l <br /> 12 5 @ 5' dark brown medium dense dry to moist 20%silt, <br /> 0 13 MW 1 R 70%fine to medium grained sand, clay stringers some <br /> B pea gravel Bentonite Seal <br /> Monterey <br /> 10 Sand#2112 <br /> 2 <br /> 20 @ 10 5' olive gray,dense 15%silt,85%fine to coarse <br /> 31 9 047 2B Mw-1 R- grained sand no plasticity high estimated permeability <br /> 11 <br /> Q <br /> 1 15 <br /> s77 Q 15'-wet <br /> 801 2° Mw IR SM <br /> 16 <br /> 0 <br /> c� <br /> "a <br /> 0 14 20 4"-dlam , <br /> 20@ 20 5'-brown dense,wet,5%clay, 20%silt, 75%fine 0 Slotted <br /> 13o o 16 24 Mw 1R grained sand no plasticity high estimated permeability Schedule 40 <br /> 21 PVC <br /> 'a <br /> c7 <br /> a <br /> i <br /> a <br /> M ,2 25 <br /> 24 <br /> Z 18 O <br /> —�, <br /> 1 <br /> rn <br /> V7 <br /> � <br /> 7 30 <br /> 7 @ 30' -medium dense <br /> 14 <br /> Y — _ — — — — — — — — — —— — 31 5 <br /> 4 Bottom of <br /> t Boring 0 31 5 <br /> a_ ft <br /> O <br /> 1 <br /> J <br /> J <br /> ISiJ <br /> J <br /> PAGE ! OF t <br />