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v `'BORING / WELL LOG <br /> a Conestoga-Rovers&Associates <br /> 5900 Hollis Street, Suite A <br /> Emeryville,-CA 94608 <br /> Telephone: 510-420-0700 <br /> Fax: 510-420-9170 <br /> CLIENT NAME Olympian JV BORING/WELL NAME MW-11 <br /> JOB/SITE NAME JIMCO Truck Plaza DRILLING STARTED 11-Mar-10 <br /> LOCATION _1022 Frontage Road,Ripon,CA DRILLING COMPLETED 19-Mar-10 <br /> PROJECT NUMBER 161556 WELL DEVELOPMENT DATE(YIELD) 24-Mar-10(63 Gallons) <br /> DRILLER Gregg Drilling,C57#485165 GROUND SURFACE ELEVATION NA <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 58.64 ft above msl <br /> BORING DIAMETER 10.5" SCREENED INTERVALS 15 to 35 fbg <br /> LOGGED BY C.Hee DEPTH TO WATER(First Encountered) 21.50 fbg(19-Mar-10) <br /> REVIEWED BY R.Scheele,PG#6842 DEPTH TO WATER(Static) 24.64 fbg(07-Apr-10) 1 <br /> REMARKS <br /> f- m <br /> M O a. x~ d o O LITHOLOGIC DESCRIPTION Z? WELL DIAGRAM <br /> p <br /> 0 LU <br /> ASPHALT: 6 inches thick. 0.5 LIβ€”I_J <br /> SAND with Silt: Grayish brown(5YR 3/2);dry;10%silt, <br /> 90%fine to medium grained sand;low plasticity;high <br /> estimated permeability. <br /> SW <br /> i <br /> 0.1 MWA1-4 <br /> I <br /> 5 I <br /> 6,0 Portland Type UII <br /> Sandy SILT with Clay: Dark yellowish brown(10YR 4/2); I <br /> dry;.10%clay,70%silt,20%fine to medium grained sand; <br /> SM low plasticity;low estimated permeability. <br /> 7.5 <br /> Silty SAND: Moderate brown(5YR 3/4);dry;5%clay, 4"diam.,Schedule i <br /> 20%silt,75%fine to medium grained sand;low plasticity; 40 PVC <br /> high estimated permeability. <br /> ^ @ 8',Moderate yellowish brown(10YR 5/4);30%silt,70% <br /> 0 fine to medium grained sand;high estimated permeability. <br /> 0.9 3 MW-11-10. <br /> Q 26 _10- <br /> 10 SM <br /> LL <br /> W <br /> a' <br /> I. <br /> _ __ _ _ __ ______ 12.0 <br /> -- β€” β€” -- ----- Bentonite Seal <br /> o SAND: Moderate yellowish brown(10YR 5/4);dry; <br /> 100%fine to medium grained sand;non-plastic;high <br /> bestimated permeability. <br /> 1 <br /> N <br /> rO 0.9 10 MW11-15 <br /> 23 15 SW <br /> m <br /> Q <br /> -------------------------- 17.5 <br /> Silty CLAY with Sand: Light olive gray(5Y 5/2);moist; <br /> 70%clay,20%silt, 10%sand;medium plasticity;low <br /> g estimated permeability. <br /> a <br /> o CIL <br /> 0.8 5' MW-11-20 / <br /> 20β€” <br /> tinued Nextage <br /> PAGE 1 OF 2 <br />