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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 BORING/WELL NAME MW-9 <br /> JOB/SITE 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 (-30 gallons) T <br /> DRILLER V&W Drilling GROUND SURFACE ELEVATION 548 <br /> DRILLING METHOD Hollow-stem auger _ _— TOP OF CASING ELEVATION 5 19 ft <br /> BORING DIAMETER 8" SCREENED INTERVAL _ . 10 to 30 ft bgs <br /> LOGGED BY J Jones DEPTH TO WATER(First Encountered) _ 14 0 ft(12-Jun 00) 1 <br /> REVIEWED BY _ K Rahman, RG DEPTH TO WATER(Static) 11 4 It(13-Jun-00)_ 1 <br /> REMARKS Hand au ered to 5'b s located 4'W of western station building wall 48' N of face of station building <br /> N <br /> Zy <br /> p j w a CL ¢O LITHOLOGIC DESCRIPTION z WELL DIAGRAM <br /> a a m0 ¢ w �� Oa <br /> U UW <br /> ASPHALT <br /> 05 <br /> Silty SAND (SM) dark brown,dry,20%silt, 80%fine to <br /> medium grained sand, no plasticity high estimated <br /> permeability <br /> Portland Type <br /> Ill I <br /> 0 21 <br /> 1Mw 9- 5 SM @ 5'-olive gray,dense, 25%silt 75%fine grained sand <br /> 30 55 <br /> Bentonite Seal <br /> Monterey <br /> 0 10 Sand#2/12 <br /> 105 <br /> D c0 050 15 Mw 9 Sandy SILT (ML) olive gray mottled with light brown <br /> 105 medium dense dry 5%clay, 55%silt 40%fine grained <br /> sand, low plasticity, high estimated permeability <br /> ML <br /> s 15 — — — — — — — — — 150 <br /> 7 SAND, (SW),dark brown medium dense,wet 10%silt, <br /> o a Mw 9- 85%fine to coarse grained sand 5%gravel no plasticity <br /> 1s high estimated permeability <br /> SW <br /> a <br /> 0 <br /> a <br /> 5 20 2"-diam , <br /> 0 Mw 9 210 0 010°Slotted <br /> LL s 205 Silly SAND (SM) dark brown wet 40%silt 60%fine Schedule 40 <br /> LU <br /> o to medium grained sand low plasticity, high estimated PVC <br /> CL SM permeability <br /> in <br /> Q. 7 _ _ _ _ _ _ _ _ _ _ _ _ _ 250 <br /> F ' 25 SAND (SP), dark brown, medium dense saturated, <br /> 0 Ic 2s 5 10%silt,90%fine to medium grained sand no plasticity, <br /> high estimated permeability <br /> m <br /> SP <br /> 3012 s —30- <br /> 1 2 <br /> 0 a0 050 14 Mw-9 — — 31 5 <br /> 31 — — — — — — — — — — Bottom of <br /> C, Boring @ 31 5 <br /> CL ft <br /> O <br /> J <br /> W <br /> PAGE I OF 1 <br />