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Cambria Environmental Technology, Inc. B O R I N GIVV E L L LOG <br /> 1144 - 65th St. <br /> Oakland,CA 94608 <br /> Telephone: (510) 420-0700 <br /> Fax: (510) 420-9170 <br /> LIENT NAME Equilon Enterprises LLC _ BORING/WELL NAME MW-2 <br /> OB/SITE 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 Gregq Drilling _ GROUND SURFACE ELEVATION <br /> DRILLING METHOD _ Hollow-stem auger �y TOP OF CASING ELEVATION NA <br /> BORING DIAMETER 6 7/8" 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 0. Ratchye,PE_ W _ DEPTH TO WATER(Static) NA <br /> REMARKS Hand au erect to 4'b s• located at car wash exit on N side of site. <br /> Q rn <br /> CL �� uJ z M `n zc7 a <br /> o = m O x w ¢p LITHOLOGIC DESCRIPTION z= WELL DIAGRAM <br /> A V < ' OU w <br /> D <br /> y a O R TE 0.5 <br /> Sift SAND;(SM);brown(10YR4/3);medium dense; <br /> 35%slit,64%very fine to medium grained sand, 1%fine <br /> grained gravel;mica. <br /> 5 <br /> s 5 Portland Type <br /> g IIlI <br /> SM - <br /> 5 <br /> 0.2 131 <br /> 3 M 52 10 10'-dense. <br /> 8 Sandy SILT;(ML);brown(10YR4/3);hard;damp to 14.0 2•diam., <br /> 50/3 15 moist;5%clay,75%silt,20%very fine grained sand; PVC ScheJule 40 <br /> slight plasticity;low estimated permeability. <br /> ML <br /> 0 19.0 <br /> 13 SiltySAND;(SM);olive brown(2.SY4/4);very dense; <br /> 27 MW-2 20 wet;20%silt,80%very fine to medium grained sand;no Bentonite Seal <br /> n <br /> 40 -19.5 plasticity;moderate estimated permeability. <br /> c� <br /> 4 Monterey <br /> W Sand#2112 <br /> 0 <br /> 10 SM <br /> 30 MW-2 25 <br /> o 24.5 @ 25'-moist to wet;45%silt,55%very fine to fine <br /> grained sand;tow to moderate estimated permeability. <br /> 0 <br /> 0 <br /> m <br /> 29.0 :. <br /> SAND"(SW);olive brown (2.5Y413)mottled with 2125199 S <br /> g 50 30 strong brown (7.5YR518); very dense;saturated; <br /> 10%silt,90%fine grained sand;mica flakes. <br /> 0 <br /> a 2"-dlam., <br /> 0.010"Slotted <br /> 23 @ 34'-5%silt,95%coarse to medium grained sand; Schedule 40 <br /> 1 _j 35 <br /> Continued Next Page PAGE ; Or 2 <br />