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I Cambria Environmental Technology, Inc BORING/ YY ELL LOG <br /> 1 144 - 65th St <br /> Oakland, CA 94608 <br /> Telephone (510) 420-0700 <br /> EFax (510) 420-9170 <br /> '• CLIENT NAME Equilon Enterprises LLC BORINGIWELL NAME MW-2 <br /> JOBISITE NAME Ripon-341 DRILLING STARTED 25-Feb-99 <br /> LOCATION 341 Main Street, Ripon,California DRILLING COMPLETED 25-Feb 99 <br /> PROJECT NUMBER 240-0324 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER GreggDrilling GROUND SURFACE ELEVATION <br /> DRILLING METHOD Hollow-stem auger _ TOP OF CASING ELEVATION NA <br /> BORING DIAMETER 6 718" SCREENED INTERVAL 23 to 43 ft bgs <br /> LOGGED BY B Jakub DEPTH TO WATER(First Encountered) 30 0 ft(25-Feb-99) <br /> REVIEWED BY O Ratch a PE DEPTH TO WATER(Static) NA <br /> REMARKS Hand au ered to 4'b s located at car wash exit on N side of site <br /> c <br /> Q O a w M co <br /> CL CL a a U p LITHOLOGIC DESCRIPTION = WELL DIAGRAM <br /> x m0 W QV �J 0a <br /> d H U C7 U <br /> a o-a N RET 05 <br /> Silty SAND, (SM),brown(10YR4/3) medium dense, <br /> 35%silt,64%very fine to medium grained sand, 1%fine <br /> grained gravel, mica <br /> 5 Portland Type <br /> 6 5 Illl <br /> e <br /> SM <br /> 5 <br /> 13 <br /> 02 35 M92 i D @ 10' -dense <br /> 140 2"dram , <br /> s Sandy SILT, (ML) brown (10YR4/3) hard,damp to Schedule 40 <br /> 5 33 15 moist, 5%clay,75%silt,20%very fine grained sand, PVC <br /> slight plasticity low estimated permeability <br /> ML <br /> 190 <br /> 13Silty SAND (SM),olive brown(2 5Y4/4),very dense, <br /> 27 MW-2 20 wet,20%silt,80%very fine to medium grained sand, no Bentonite Seal <br /> ao _195 0- <br /> plasticity, moderate estimated permeability <br /> Monterey <br /> W Sand#2/12 <br /> m <br /> 010 SM <br /> 30 <br /> 0 45 24 5 —25- 25' -moist to wet,45%silt,55°/a very fine to fine <br /> grained sand, low to moderate estimated permeability <br /> o <br /> m <br /> z <br /> 0 290 <br /> a 36 SANQ (SW) olive brown(2 5Y4/3) mottled with 2/25/992 <br /> 30 strong brown(7 5YR5/8) very dense,saturated - <br /> .� 50 10%sill,90%fine grained sand mica flakes <br /> a2"-diam <br /> 0 010"Slotted <br /> 23 @ 34'-5%sill,95%coarse to medium grained sand, Schedule 40 <br /> 35 <br /> Continued Next Page PAGE 1 OF 2 <br />