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Cambria Environmental Technology, Inc <br /> 7144 -65th 5t BORING/WELL LOG <br /> Oakland, CA 94608 <br /> Telephone (510)420-0700 <br /> Fax (510)420-9170 <br /> CLIENT NAME Eauiva Services LLC BORING/WELL NAME MW-4A <br /> JOB/SITE NAME _ Ripon-341 DRILLING STARTED __ 25 Qct-99___ <br /> LOCATION _ 341 Main Street,Ripon California DRILLING COMPLETED _ 27 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 12' SCREENED INTERVAL _ 70 to 75 ft bgs <br /> LOGGED BY B Jakub DEPTH TO WATER(First Encountered) 35 0 tt_(25-Oct-99) <br /> REVIEWED BY O Ratchye,PE _ _` DEPTH TO WATER(Static) _ NA 1 <br /> REMARKS Hand auaered 1o_4 5'boa,located behind station building <br /> �Fco <br /> 11! Z ul � Q <br /> m o a LU w O LlTHOLOGIC DESCRIPTION z WELL DIAGRAM <br /> x <br /> za U y W in C7 0a <br /> f-- � <br /> 05 <br /> SM Silty SAND[SR),da brown(10 yr3/3),2%clay,43% <br /> Slit,55%fine grained sand,no plasticity,medium to high <br /> estlmatej_permeabdj;y — — — — ` — — - 25 <br /> SAND(SP),dark brown(10 yr3/3),damp,very loose to <br /> loose sand, 5`/silt,95%fine to medium grained sand,no <br /> 5 SP plasticity,high estimated permeability <br /> s <br /> <10 r MW4A60 <br /> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 75 <br /> Suty SAND(SM),dark brown(10 yr3/3), damp,loose <br /> sand,2%clay, 18%silt,80%fine to medium grained <br /> s sand medium to high estimated permeability <br /> 7 <br /> <1 0 1 <br /> 0 MW 4A 10 SM <br /> moa <br /> _ _ _ _ _ _ _ _ _ _ _ _ _ 125 <br /> (SP,yeliew_brown(10y 514),damp,loose sand, <br /> 15%_ silt 85%) fine grained sand,no plasticity high <br /> estimated permeability <br /> <1 0 " Mw 4A �-15— SP <br /> 15 R' <br /> 175 <br /> Shy SAND(5M),dark brown(10 yr313),damp,loose <br /> sand,15%silt,85%fine to medium grained sand,medium <br /> to high estimated permeability <br /> <10 ° MW-4A 20- <br /> 20 D' <br /> 0 <br /> c� <br /> LL � <br /> -'10 16 MW-4p 25 SM @ 25'-mottled yellow brown,loose to medium dense <br /> CL <br /> 25 0' sand <br /> a <br /> � e <br /> <i 0 14 MW-4A 30 <br /> 300 Portland Type <br /> ® 26-sand medium grained with mica,loose to medium Illi <br /> zdense sand,moist <br /> SAND(SW),yellow brown(10 y5/4),wet,medium T <br /> o dense sand, 3%silt,97%medium grained sand,no <br /> t0 <br /> 1135 plasticity,high estimated permeability <br /> • • � <br /> u <br /> d <br /> onhnued Next Page PAGE f OF 2 <br />