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Cambria Environmental Technology, Inc. BORING/WELL LOG <br /> 1 144 - 65th St, <br /> Oakland, CA 94608 <br /> Telephone_ (510) 420-0700 <br /> Fax: (510) 420-9170 <br /> CLIENT NAME — Eguiva Services LLC BORINGMELL NAME MW-4A <br /> JOBISITE NAME Ripon-341 DRILLING STARTED 25-Oct-99 <br /> LOCATION 341 Main Street,Ripon,California DRILLING COMPLETED 27-Oct-99 <br /> Continued from Previous Page <br /> of o V n <br /> E O Z -' w 4 Q v a-q LITHOLOGIC DESCRIPTION WELL DIAGRAM <br /> J Z) 0. t-- Uj (n Q J Z F-- <br /> = mO ¢ C'3 OW <br /> p U O <br /> F-- <br /> 9 <br /> /{ 40 <br /> 17 <br /> SW <br /> 7 <br /> u 45 <br /> 5 @ 45'-fine to coarse grained sand. <br /> a <br /> e 50 <br /> e <br /> 54.8 <br /> ,e 55 Sandy SILT(ML);dark yellow brown;wet;loose to155.3 <br /> medium dense sand;5%clay,50%silt,45%fine to <br /> SM coarse grained sand;low plasticity;medium to low <br /> estimated permeability. r 57.5 <br /> Silty SAND(SM);dark brown to yellow brown;wet; <br /> loose to medium dense sand;3%clay,35%silt,62%fine f <br /> e ,grained sand;medium plasticity;medium to low estimated f <br /> 60 perrreabily.— <br /> 12 — — — — — <br /> SAND(SW);brown;wet;loose to medium dense sand; <br /> 5%silt,95%fine to medium grained sand; no plasticity; <br /> high estimated permeability. <br /> o e7 Bentonite Seal <br /> 122 <br /> a 65 <br /> SW <br /> LL <br /> o Monterey <br /> 7 <br /> 10 Sand#2/12 <br /> 13 <br /> 70 0 70'-fine grained sand; 10%silt,90%sand. <br /> g 4"-diam. <br /> 0.010"Slotted <br /> Schedule 40 <br /> z n PVC <br /> a 75.0 <br /> { 11 " @ 75'-coarse to fine grained sand;3%sill,97%sand. <br /> z Boring @ 75 f1 <br /> 0 <br /> a <br /> J <br /> J <br /> J <br /> IL <br /> PAGE 2 OF 2 <br /> I <br />