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f <br /> -�- Conestoga-Rovers ssociates 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 BORINGIWELL NAME MW-5 <br /> JOBISITE NAME Former Shell Pipelines-Mountain House NBH B DRILLING STARTED 03-Sep-09 <br /> LOCATION Tracy,California DRILLING COMPLETED 11-Sep-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(30.0 gallons) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 111.90 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 114.14 ft above msl <br /> BORING DIAMETER 8" SCREENED INTERVAL 23 to 38 fbq <br /> LOGGED BY C.Rodriguez DEPTH TO WATER(First Encountered) 28.0 ft(11-Sep-09) V <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 28.72 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 /> N F- U or <br /> n O D (Lr a a C6 ¢O SOIL DESCRIPTION ? WELL DIAGRAM <br /> 0 <br /> EL m0 < w ❑ 0 OD <br /> SILT(ML);fill;brown(10YR 4/3);dry;20%clay,70% Completed with <br /> silt,10%fine-grained sand;low plasticity;low permeability; 2'tall stovepipe. <br /> grassy surface with minor cracking;low density. <br /> 0.0 16, oQ 5'-very dark gray(10YR 3/1);dry. <br /> 7 MW-5-60.0 is <br /> 1s <br /> e <br /> 1310 ML Portland Type I! <br /> 10 0.0 1s <br /> 18 MW-5-11 <br /> 0.0 12 @ 11.5'-brown(10YR 5/3);dry;5%clay,85%sift,10% <br /> 19 fine to medium-grained sand;low plasWty,low <br /> 9 permeability. <br /> O 9 <br /> e 0.0 11. 15 <br /> 0.0 a MW-5-16 <br /> 0.0 19 <br /> @ IT-dry to moist 15%clay,75%silt,10%fine to <br /> j1t medium-grained sand;low plasticity;low permeability_ <br /> LL 1i @ 19'-dry to moist-,5%clay,85%silt,10%fine to 20.0 <br /> 0 0.0 1z 20 medium rained sand-low lastici •low ermeabili - Bentonite Seal <br /> a 14 Mw-5-21 SM Silty SAND(SM);native contact;brown(10YR 5/3);dry, <br /> `? 0.0 14 25%silt 75%fine to medium rained sand. 22.0 Monterey Sand <br /> T. SP SAND(SP);brown(10YR 5/3);dry to moist;5%silt, #2/12 <br /> N e 95%fine to medium rained sand-hi h ermeabili . 23.5 <br /> N is - ML SILT(ML);dark gray(10YR 4/1);moist;20%clay,80% <br /> 0.0 9 —25— SM silt;low to medium plasticity;low permeability- 25.5 <br /> 1z Silty SAND(SM);pale brown(10YR 6/3);moist;20% 26.0 ' <br /> a MW-5 28 silt 80%sand;high permeability. <br /> 0 0.0 3 ML <br /> 7 SILT(ML);dark gray(10YR 4/1);moist;20%clay,800/c 28.0 <br /> 8 e silt-low to medium plasticity*low permeability. <br /> ° Silty SAND(SM);brown(10YR 5/3);wet;15%silt,85% <br /> N <br /> 0.0 z —30— fine to medium-grained sand;high permeability. 2'-diam..0.020 <br /> 0 <br /> g MW-5-31 SM Slotted Schedule <br /> g 0.0 7 ao PVC <br /> @ 32'-wet;15%silt,85%fine-grained sand;high <br /> N s permeability. <br /> C 6 <br /> = s 35 35.0 <br /> 0.0 „ SIL_ T(ML);brown(10YR 5/3);moist to wet; 10%clay, <br /> 5 ML 85%silt,5%fine-grained sand;low plasticity; low <br /> y 7 permeability. 38.0 <br /> QQD 9 MW-S- <br /> 2 37.5 <br /> O <br /> 40 Bottom of <br /> Boring @ 38 ft <br /> 0 <br /> a <br /> t� <br /> O <br /> J <br /> 45 <br /> PAGE 1 OF 1 <br />