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Connestoga-Rovers&Nwrdociates SOIL BORING LOG <br /> 5900 Hollis Street, Suite A <br /> Emeryville,CA 94608 <br /> Telephone: 510-420-0700 <br /> Fax: 510-420-9170 <br /> CLIENT NAME Olympian JV WELL NAME B-26 <br /> JOB/SITE NAME JIMCO Truck Plaza DRILLING STARTED 14-Mar-07 <br /> LOCATION 1022 Frontage Road,Ripon,CA DRILLING COMPLETED 1.4-Mar-07 <br /> PROJECT NUMBER 165-1556 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER Gregg Drilling C57#485165 GROUND SURFACE ELEVATION 60.6 ft ams] <br /> DRILLING METHOD Direct Push TOP OF CASING ELEVATION NA <br /> BORING DIAMETER 2.5 inches SCREENED INTERVAL NA <br /> LOGGED BY G.Reiss DEPTH TO WATER(First Encountered) 23.0 ft bgs(14-Mar-07) <br /> REVIEWED BY B.Wilken,PG#7564 DEPTH TO WATER(Static) NA 1 <br /> REMARKS Collected grab groundwater sample through 3/4 inch diameter temporary PVC casing with 10' of screened casing <br /> CL W W y U a� Q� <br /> 0 0, n. Lu Uj a $' p DESTRUCTION METHOD DESCRIPTION z WELL DIAGRAM <br /> a E ¢ p` �J 0a <br /> cn w0 <br /> Z�AHAT: 3 Inches thick. 0.3 ° Concrete <br /> ad Base 1.0y Gravelly SAND: Light brown;medium dense; <br /> silt,60%fine to medium grained sand,20% <br /> d broken glass fragments;non-plastic;high 3.0 <br /> d ermeabilit . <br /> D: Light brown;medium dense;dry;20%silt, <br /> 80%fine grained sand;non-plastic;moderate estimated <br /> 5 permeability. <br /> SM <br /> 0 <br /> 0 <br /> a-260 10 10 —— — -..-— — —— — ——— 10.0 <br /> ILT: <br /> ML SLight brown/gray;medium stiff;dry; 100%silt <br /> 0 — ( . _on- lastic•low estimated ermeabilit .———————— 11.0 <br /> -p--1-------p---Y <br /> 0 SP SAND: Brown and white; loose;dry; 100%fine to 12.0 <br /> ML— I --medium grained sand high estimated_l?ermeabil]t_--- <br /> Sandy SILT: Light brown/gray;medium stiff;dry;80% 13.0 <br /> SM silt,20%fine grained sand;non-plastic;low estimated / <br /> _— :• \permeability.-------------------7 14.0 <br /> e Silty SAND: Light brown;medium dense;dry;25%sik, /— <br /> o <1.0 B-26015 15 75%fine grained sand;non-plastic;moderate estimated / <br /> r \eermeabiliy-------------------/ Portland Type <br /> ML Sandy SILT: Light brown;medium stiff;dry;80%silt, I/II <br /> 2 20%fine grained sand;low estimated permeability. <br /> z3 <br /> a @16': Orange/brown;60%silt,40%fine grained sand; <br /> LU B-20018• low to moderate estimated permeability. 18.0 <br /> r-- -------------- ----------- <br /> gray;Light medium s i moss; <br /> sa 25%clay,65%silt, 10%fine grained sand;low plasticity; <br /> low estimated permeability. <br /> o B-260 zo' 20 <br /> J <br /> Z 21.0 <br /> CL <br /> 139 Silty SAND: Gray and white;loose;moist;10%silt,90% <br /> 1000 B-266 22' fine to medium grained sand;non-plastic; high estimated <br /> } <br /> o permeability. <br /> FZ 19 SP @23': Wet. <br /> f7 1.5 B-250 24' <br /> 25 -- — -- — -- -- — --- 25.5 <br /> ML I Clayey Sandy SILT: Gray;soft;moist; 15%clay;60% <br /> g 2 silt,15%fine grained sand;low plasticity;low estimated 26.5 <br /> 2 B-26027' \permeability -------- —— _J� <br /> 0 0 Silty SAND: Orange/brown;very dense;dry;30%silt, <br /> E SM 70%fine grained sand;non-plastic; low estimated <br /> permeability. <br /> a z @29': Light gray;medium dense;wet;35%silt,65%fine <br /> 1.4 <br /> B-26(a 30' 30 rained sand• moderate estimated permeability. 30.0 Bottom of <br /> Boring @ 30 ft <br /> bgs <br /> PAGE t OF 1 <br />