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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 E uiva Services LLC BORING/WELL NAME MW-8A&B <br /> JOB/SITE NAME Ripon-341 _ DRILLING STARTED 28-Oct-99 <br /> LOCATION 341 Main Street, Ripon,California DRILLING COMPLETED 29-Oct-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 1 V. SCREENED INTERVAL NA <br /> LOGGED BY B.Jakub DEPTH TO WATER(First Encountered) 30.0 ft(25-Oct-99) Q <br /> REVIEWED BY O. Ratchye, PE DEPTH TO WATER(Static) NA 1 <br /> REMARKS Hand au ered to 4.5'b s;located behind station building. <br /> N <br /> E 0 z -j w a c [� as 6 LITHOLOGIC DESCRIPTION F WELL DIAGRAM <br /> a F- Q <br /> m0 a w <br /> aO O w <br /> I- co o <br /> FILL 1.0 <br /> SIItyLSAND(SM);dark brown(10 yr4/3);damp;very <br /> loose sand;40%silt,60%fine grained sand;no plasticity; <br /> medium to high estimated permeability. <br /> <1,0 3 MW-6A5.0' S SM <br /> 3 <br /> 9.3 <br /> <1.0 a MW-6A 9.5' 10 SAND(SP);yellow brown (10 yr5/6);damp;loose sand; <br /> 12%silt,88%tine grained sand;no plasticity;high <br /> estimated permeability. <br /> SP <br /> s <br /> s 14.8 <br /> <1.0 7 MW-6A —15-- SILT(ML); brown;wet;medium stiff; 2%clay,88%silt, <br /> 15.0' 10%fine grained sand; low plasticity;medium to low <br /> estimated permeability. <br /> ML <br /> 7 19.8 <br /> MW-6A �-20— Sandy$ILI(SM);dark yellow brown(10 yr5/4);damp; <br /> `1.0 20.0' medium stiff;2%clay,83%silt, 15%fine grained sand; <br /> a SP low plasticity;medium to low estimated permeability. <br /> Portland Type <br /> � Illl <br /> 24.0 <br /> W s SILT(ML); mottled brown;wet;soft;2%clay,95%silt, <br /> W 2 Mw 6A 25 3%fine grained sand;low plasticity; medium to low <br /> CL �1 0 estimated permeability;very fine mica flakes <br /> a zs.a' <br /> ML <br /> z <br /> z , <br /> a <br /> a <br /> it 29.0 <br /> SAND(SW);yellow brown(10 yr5/4);damp;loose <br /> °mom <1.0 MW 6A 30 sand; 5%silt,95%sand;no plasticity;high estimated <br /> 21 <br /> z 29.5' SW <br /> permeability. <br /> z 32.5 <br /> SILT(ML); brown;wet; medium stiff to stiff;2%clay, <br /> ML 88%silt, 10%fine grained sand;!ow plasticity;medium to <br /> 5 low estimated permeability. 34.8 <br /> a s 35 $II„I with Ciao(ML);brown(10 yr5/3);stiff;wet; 12% <br /> clay,88%sill;medium low plasticity; low estimated <br /> SW permeability. <br /> d <br /> 37'-stiff layer. <br /> 3 <br /> Continued Next Page PAGE ? OF 2 <br />