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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 E uiva Services LLC BORINGIWELL NAME MW-5A&B <br /> JOB/SITE NAME Ripon-341 DRILLING STARTED 26-00-99 <br /> LOCATION 341 Main Street Ripon,Califomia DRILLING COMPLETED 27-Qct-99 <br /> PROJECT NUMBER 240-0324 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION _Not Surveyed <br /> DRILLING METHOD Hollow-stem auger.. TOP OF CASING ELEVATION NA <br /> BORING DIAMETER 12" SCREENED INTERVAL NA <br /> LOGGED BY B.Jakub DEPTH TO WATER(First Encountered) 35.0 It(25-Oct-99) <br /> REVIEWED BY 0. Ratchye, PE DEPTH TO WATER(Static) NA 1 <br /> REMARKS Hand au ered to 4.5'b s;located behind station building. <br /> M L6 <br /> x v7 Q U U <br /> E 0 z w 0-0 V a LITHOLOGIC DESCRIPTION WELL DIAGRAM <br /> Z) o <br /> Mm0 w q ¢-' za <br /> o 0 Ov uj <br /> 0 <br /> ASPHALT 0.3 <br /> dilly SAND(SM);dark brown(10 yr3/3);damp;loose <br /> SM sand;30%silt,70%fine grained sand-,no plasticity; <br /> medium to high estimated permeability. <br /> _ _ _ _ _ _ _ _ _ _ _ _ _ 3.5 <br /> SAND(SP);dark yellow brown(10 yr313);damp;loose <br /> sand; 10%silt,90%fine grained sand;no plasticity; high <br /> <1.0 5 MW-5A5.5' SP <br /> estimated permeability. <br /> _ _ _ _ _ _ _ _ _ _ - _ 7.5 <br /> Silty SAND(SM);dark brown(10 yr5/3);damp;very <br /> loose to loose sand;45%silt,55%sand; high to medium <br /> . 18 estimated permeability. <br /> <1.0 24 MW-5A9.5' 10SM <br /> _ _ _ _ _ _ _ _ _ _ _ _ _ 12.5 <br /> SAND(SP);yellow brown(10y 514);damp;loose sand; <br /> 5%silt,95%tine grained sand;no plasticity; high <br /> estimated permeability. <br /> 5 <br /> <1.0 a Mw-5A 1 s <br /> 15.0' SP <br /> a 19.3 N Portland Type <br /> <1.0 ,o M 1-5A 20 Sandy SILT(ML);dark gray brown(10 yr412);damp; 19.6 IIII <br /> 19.01 medium stiff;3%clay,62%silt,35%fine grained sand; <br /> low plasticity;medium to low estimated ermeabilit . <br /> SP SAND(SP);yellow brown(10 yr5/4);damp; loose sand; <br /> 5%silt,95%fine grained sand;no plasticity;high <br /> estimated permeability. <br /> 0 20.3'-yellow brown; 10%silt,90%fine grained sand; 24.0 <br /> s medium high eslimaled permeability. <br /> <1.0 a Mw-5A0-25- <br /> 0Silty SAND(SM);brown(10yr3/3);damp;loose sand; <br /> R <br /> 24.5' j 1' 1506 sift,85°6 fine sand;medium estimated permeability. <br /> c? SM @ 24.5'-mica flakes; medium estimated permeability. <br /> z <br /> 0 <br /> CL <br /> 29.0 <br /> 61 a SW ZANg(SW):yellow brown(10 yr5/4);damp; loose 29.6 <br /> In 7Mw-5A 30 sand; 5%silt,95%coarse to fine grained sand;no 29.8 <br /> z <11.0 lastici -,hi h estimated ermeabilit . <br /> [7 30D, Q�nrly S!1_T lCAAN-riarir val]nw hrnwn/1n tirrFl41'fiamn' <br /> z SW loose to medium dense sand;75%sill,25%fine grained <br /> and;low plasticity;medium to low estimated ermeabilit . <br /> SAND(SW);yellow brown(10 yr514);damp; loose 34.0 <br /> SM sand; 5%silt,95%coarse to fine grained sand;no 34.8 <br /> I? <1.0 ; MW-5A 35 lasticit ;high estimated permeability. 35.1 <br /> n=. 34.5' Silty SAND(SM);yellow brown;wet;loose dense sand; <br /> 35%silt 65%sand;medium estimated permeabilit . <br /> SM Silty SAND(SM);yellow brown;wet; loose dense sand; <br /> 40%silt 60%fine sand; medium estimated permeabili 38.0 <br /> W <br /> Continued Next Page <br /> PAGE I OF 2 <br />