Laserfiche WebLink
Conestoga-Rovers&Associates BORING/WELL LOG <br /> 19449 Riverside Drive, Suite 230 <br /> `� Sonoma, CA 95476 <br /> Telephone: 707-935-4850 <br /> Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BORING/WELL NAME MW-19 <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House,NBH B DRILLING STARTED 31-Aug-09 <br /> LOCATION Tracy,California DRILLING COMPLETED 08-Sep-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(30.0 gallons) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 101.18 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 103.41 ft above msl <br /> BORING DIAMETER 8" SCREENED INTERVAL 22 to 37 fbq <br /> LOGGED BY C. Rodriguez DEPTH TO WATER(First Encountered) 27.0 ft(08-Sep-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 27.87 ft(30-Sep-09) 1 <br /> REMARKS Air Knifed to 2 fbq;Water Knifed to 5 fbq.Above ground construction consisting of a 2 ft.Stovepipe. <br /> rn <br /> H W Z = <br /> a W o O SOIL DESCRIPTION = WELL DIAGRAM <br /> _j DM OV < W _ OV Q <br /> Cn <br /> SILT(ML);brown(10YR 4/3);dry;20%clay,75%silt, Completed wl <br /> 5%fine sand;low plasticity;prismatic structure;compact; 2'tall stovepipe. <br /> grassy surface with cracks up to 1 inch in diameter. <br /> @4'-SILT with Sand(ML); 15%clay,70%silt, 15%fine <br /> sand;low plasticity. <br /> 0.9 9 MW-19-5 5 @5'- SILT(ML);very dark grayish brown(2.5Y 3/2); <br /> 73 firm;20%clay,70%silt, 10%fine sand;low plasticity; <br /> blocky;roots and trace of fine subrounded gravel(angular <br /> o, rock 1.5 inches in diameter). <br /> o ML <br /> @6'-SILT with sand(ML);25%clay,60%silt, 15% <br /> E2 6 sand;low to medium plasticity. <br /> 11 <br /> 0 11 <br /> c� <br /> 0.0 12 @8-Sandy SILT(ML);hard; 15%clay,45%silt,40% <br /> 16 fine sand;low plasticity;trace of gravel. <br /> LU Portland Type II <br /> a <br /> co <br /> c7 <br /> z 0.0 ,so MW-19-10 1Q @10'-light olive brown(2.5Y 5/3);dry;firm;20%clay, <br /> N 10 40%silt,40%fine sand;medium plasticity. <br /> N <br /> N <br /> O <br /> w 's @12'-10%clay,60%silt,30%very fine sand;low <br /> 10 plasticity;blocky structure. <br /> 13.0 <br /> NC14 ; Silty SAND(SM);light olive brown(2.5Y 5/3);dry; <br /> 7 SM <br /> 0 loose;5%clay,40%silt,55%fine sand;blocky structure. <br /> -- --------Cq 14.5 <br /> ------------------ <br /> g 0.0 Sandv SILT(MLI;light olive brown(2.5Y 5/4);dry; 10% <br /> a6MW-19-15 15 clay,60%silt,30%very fine sand;low to medium <br /> 12 ML plasticity. <br /> W <br /> N 16.5 <br /> Silty SAND(SM);light olive brown(2.5Y 5/4);dry; <br /> < s SM loose;5%clay,40%silt,55%fine sand; low plasticity. <br /> z s <br /> 0 18.0 <br /> Sandy SILT(ML);light olive brown(2.5Y 5/4);dry; 10% <br /> e clay,60%silt,30%very fine sand;low to medium <br /> a lastici . <br /> 0 p tY Bentonite Seal <br /> 0 <br /> ML <br /> J <br /> 20 <br /> Continued Next Page PAGE 1 OF 2 <br />