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Cambria Environmental Technology, Inc. BORING/WELL LOG <br /> 5900 Hollis Street, Suite <br /> Emeryville, CA 94608 *p.., w...� <br /> Telephone: 510-420-0700 <br /> Fax: 510-420-9170 <br /> CLIENT NAME Olympian JV BORING/WELL NAME MW-10 <br /> JOB/SITE NAME Jimco Truck Plaza DRILLING STARTED 15-Aug-05 <br /> LOCATION 1022 Frontage Road, Ripon,CA DRILLING COMPLETED 15-Aug-05 <br /> PROJECT NUMBER 165-1556-200 WELL DEVELOPMENT DATE(YIELD) 27-Aug-05(26 Gallons) <br /> DRILLER Gregg Drilling,C57#485165 GROUND SURFACE ELEVATION 58.14 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 57.56 ft above msl <br /> BORING DIAMETER 8" SCREENED INTERVALS 15 to 35 fbq <br /> LOGGED BY R. Fennell DEPTH TO WATER(First Encountered) 24.0 fbg(15-Aug-05) <br /> REVIEWED BY B.Wilken,PG#7564 DEPTH TO WATER(Static) 24.30 fbq(15-Aug-05) 1 <br /> REMARKS Located 72'west of MW-9.93.5'south of MW-3. <br /> E � � 2 ui v U•a <br /> aa w LU CL O LITHOLOGIC DESCRIPTION z WELL DIAGRAM <br /> coo X <br /> a- U < W C� �WQ <br /> ASPHALT:6 inches thick. 0.5 <br /> FILL: Gray:damp;gravelly sand. 1.0 <br /> Silty SAND:Reddish brown;loose;damp;20%silt,80% <br /> fine sand;low plasticity;high estimated permeability. <br /> i <br /> @ 3'-Mica;30%silt;70%fine sand. <br /> 3 5 SM <br /> 0.5 MW10.6 <br /> ' Portland Type <br /> I/II <br /> 2"diam., <br /> 8.5 Schedule 40 <br /> z5 Silty CLAY:Gray;hard;dry;60%clay,30%silt, 10% PVC <br /> 27 fine sand in brown nodules;non-plastic; los estimated <br /> 10 10 permeability;friable. <br /> 11 CL <br /> 16 @ 11'-Light gray;50%clay,30%silt,20%fine sand. <br /> 1 MW-10-12.5 <br /> 6 13.0 Bentonite Seal <br /> Sandy SILT:Brownish gray;hard;damp;60%silt,40% <br /> 12 ML fine sand;mica;brown sand nodules. <br /> 16 15 0 Monterey <br /> s 15 Sand#2/12 <br /> 0 13 SAND with Silt:Light grayish brown;medium dense; <br /> 15 SW damp; 10%silt,90%fine to coarse sand;non-plastic;high <br /> s estimated permeability. <br /> D <br /> LL <br /> 13 <br /> w 1.5 MW-10.17.5 17.5 <br /> t6Silty SAND:Brownish gray;medium dense;damp;40% <br /> a 7 silt,60%fine sand;lowlasticit moderate estimated <br /> 15 SM permeability. p y <br /> a 11 @ 19'-Sand grades into fine to medium grained with <br /> 7 20 mica;20%silt,80%sand;low plasticity;high estimated <br /> m „ permeability. 21.0 <br /> t3N Near 21'-A thin lense of silty sand;40%silt,60%sand; <br /> e <br /> ,e Mw,o-zz.s low lasticit •moderate estimated permeability. <br /> 0.5z <br /> SAND with Silt:Gray;medium dense;moist; 10%silt, <br /> 6 90%medium to coarse sand;non-plastic;high estimated <br /> 10 permeability. <br /> 0 12 <br /> SP @ 24'-Wet. <br /> � 17 <br /> z e 25 2"-diam., <br /> a +3 0.010"Slotted <br /> ss Schedule 40 <br /> o ° PVC <br /> 21.2 ,3 MW-10.27.5 27.5 <br /> a 19 ML Sandy SILT:Gray;very stiff;wet;60%silt,40%sand; 28.0 <br /> low lasctici moderate estimated ermeabili <br /> 7 SW o 0 29.0 <br /> 0 12 SAND: Gray;medium dense;wet;5%silt,90/o medium <br /> 20 to coarse sand,5%gravel to 20 mm;non-plastic;high <br /> W 30 <br /> on mue ex age <br />