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i <br /> Conestoga-Rovers Associates `dOR1NG / WELL LOG <br /> 5900 Hollis Street, Suite A <br /> g` A Emeryville,CA 94608 <br /> Telephone: 510-420-0700 <br /> Fax: 510-420-9170 <br /> CLIENT NAME Olympian JV BORING/WELL NAME MW-19 <br /> JOB/SITE NAME JIMCO Truck Plaza DRILLING STARTED 12-Mar-10 <br /> LOCATION 1022 Frontage Road Ripon CA DRILLING COMPLETED 15-Mar-10 <br /> PROJECT NUMBER 161556 WELL DEVELOPMENT DATE(YIELD) 26-Mar-10(80 Gallons) <br /> DRILLER Gregg Drilling,C57#465165 GROUND SURFACE ELEVATION NA <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 56.32 ft above ms] <br /> BORING DIAMETER 10.5" SCREENED INTERVALS 15 to 35 fbg <br /> LOGGED BY C.Hee DEPTH TO WATER(First Encountered) 33.50 fbg(15-Mar-10) <br /> REVIEWED BY R.Scheele,PG#6842 DEPTH TO WATER(Static) 22.31 fbg(07-Apr-10) 1 <br /> REMARKS Limited access"Rhino"rig used,no blow counts avaliable. <br /> CL <br /> U <br /> O a xWx W g a 0 LITHOLOGIC DESCRIPTION Z F WELL DIAGRAM <br /> mV _ � <br /> UD <br /> FL <br /> ASPHALT: 6 inches thick. 0.5 L r--I <br /> SAND with Silt: Moderate brown(5YR 3/4);moist; 10% <br /> silt,90%fine to medium grained sand;low plasticity;high <br /> SM estimated permeability. <br /> 2.0 <br /> Sandy SILT: Moderate yellowish brown(10YR 5/4);dry; i. <br /> 80%silt,20%fine grain sanded;low plasticity;low <br /> estimated permeability. <br /> ML <br /> 0.0 MW-19-4 ! <br /> 5 5.0 <br /> SAND: Grayish brown(5YR 3/2);100%fine to medium <br /> grain sanded;dry;non-plastic;high estimated Portland Type 1111 <br /> SW ; permeability. <br /> i <br /> _ ____ _ ________________ 6.8 <br /> Silty CLAY with Sand: Grayish brown(5YR 3/2);moist; <br /> 60%clay,25%silt,10%fine to medium grained sand,5% <br /> gravel;medium plasticity;low estimated permeability. 4"diem.,Schedule j <br /> 0 40 PVC <br /> 'm <br /> r <br /> H <br /> ❑ i <br /> 0.4 MW-19-10 <br /> a <br /> 10 <br /> — <br /> Lu <br /> 'o. <br /> C7 <br /> i <br /> Bentonite Seal <br /> J <br /> O <br /> (h <br /> U <br /> l <br /> CIL <br /> '0 0.5 MW19-15 <br /> 15 @15':as above but no sand nor gravel;70%clay,30% <br /> m silt. <br /> io <br /> o: <br /> 0 <br /> a <br /> O <br /> J <br /> � 0.5 MW-19-20 <br /> 20 <br /> ontinued Nextage <br /> PAGE 1 OF 2 <br />