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Conestoga-Rovers&Associates ''GORING / WELL LOG <br /> 5900 Hollis Street,Suite A <br /> f Emeryville,CA 94608 <br /> " Telephone: 510-420-0700 <br /> r Fax: 510-420-9170 <br /> CLIENT NAME Olympian JV BORING/WELL NAME MW-20 <br /> JOB/SITE NAME JIMCO Truck Plaza DRILLING STARTED 12-Mar-10 <br /> LOCATION 1022 Frontage Road,Ripon,CA DRILLING COMPLETED 17-Mar-10 <br /> PROJECT NUMBER 161556 WELL DEVELOPMENT DATE(YIELD) 26-Mar-10(70 Gallons) <br /> DRILLER Gregg Drilling,C57#485165 GROUND SURFACE ELEVATION NA <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 58.43 ft above msl <br /> BORING DIAMETER 10.5" SCREENED INTERVALS 15 to 35 fbg <br /> LOGGED BY C.Hee DEPTH TO WATER(First Encountered) 27.00 fbg(17-Mar-10) <br /> REVIEWED BY R.Scheele,PG#6842 DEPTH TO WATER(Static) 24.40 fbg(07-Apr-10) 1 <br /> REMARKS <br /> CM <br /> fl �~ w z <br /> Q. m Uj <br /> 0 ? IL J LITHOLOGIC DESCRIPTION o a WELL DIAGRAM <br /> 0 <br /> a U co Uo <br /> memo ASPHALT: 2 inches thick. 0.2 l—r••L� <br /> Sandy SILT: Moderate brown(5YR 3/4);moist;5%clay, <br /> %silt,155/o fine to medium grained sand;low plasticity; <br /> low estimated permeability. <br /> t <br /> ML <br /> i- <br /> 6' <br /> 0.0 MW-204 <br /> 5 � <br /> _____ _______________ ____ 5.5 <br /> ///FSilty CLAY:Moderate yellowish brown(10YR 5/4);moist Portland Type I/II <br /> 65%clay,30%silt,5%fine to medium grained sand; <br /> medium plasticity;low estimated permeability. <br /> 4"diam.,Schedule ! <br /> 0 <br /> 40 PVC <br /> m <br /> r <br /> H <br /> O <br /> (7 <br /> M o.0 13 MW-20-10 <br /> 32 10 <br /> LL <br /> W <br /> CL <br /> K <br /> j Bentonite Seal <br /> O <br /> b <br /> LL <br /> M <br /> tV0 <br /> @ 14':as above;70%clay,20%silt, 10%fine to medium <br /> 0.0 „ MW-20-15 grained sand;low plasticity,low estimated permeability. <br /> 30 15 <br /> N <br /> f0 ' <br /> h -- -- — — --- -- --- 16.8 <br /> a Clayey.Sandy SILT: Light olive gray(5Y 5/2);moist; <br /> 25%clay,45%silt,30%fine to coarse grained sand;low <br /> m plasticity;moderate estimated permeability. <br /> z <br /> 0 <br /> a <br /> ML <br /> 1.4 12 MW-20-20 <br /> 20 <br /> Continued ex age <br /> PAGE 1 OF 2 <br />