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Connestoga-Rovers&�,,.aociates SOIL BORING LOG <br /> 5900 Hollis Street, Suite A <br /> 49 Emeryville,CA 94608 <br /> Telephone: 510-420-0700 <br /> Fax: 510-420-9170 <br /> CLIENT NAME Olympian JV WELL NAME B-27 <br /> JOB/SITE NAME JIMCO Truck Plaza DRILLING STARTED 15-Mar-07 <br /> LOCATION _ 1022 Frontage Road,Ripon,CA DRILLING COMPLETED 15-Mar-07 <br /> PROJECT NUMBER 165-1556 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER Gregg Drilling C57#485165 GROUND SURFACE ELEVATION 58.1 ft amsl <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) 21.0 ft bgs(15-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 /> N <br /> L) Va <br /> CL =�` a H a V p DESTRUCTION METHOD DESCRIPTION = WELL DIAGRAM <br /> a ~ E ¢ Qv OJ Ow <br /> o <br /> ASPHALT: 3 inches thick. 0.30 .a o Concrete <br /> FILL:Road Base 1.0 <br /> Silty SAND: Brown;medium dense;dry;30%silt,70% <br /> fine grained sand;non-plastic;moderate estimated <br /> permeability. <br /> SM <br /> —5— <br /> Sandy SILT: Light brown;medium stiff;dry;7506 silt, 6.0 <br /> 25%fine grained sand;non-plastic;low estimated <br /> oML permeability. <br /> 0 <br /> B-27(M 10 -- -- — — --- 10.0 <br /> 10— SM Silty SAND: Light brown;loose;dry;40%silt,60%fine <br /> grained sandimoderate estimated ppmr eabily_____--11.0 <br /> SILT with sand: Light brown;medium stiff;dry;90%silt, i <br /> ML 10%fine grained sand;non-plastic;low estimated _12.5 <br /> --- _,Lermeabili!y-------------------- <br /> Silty SAND: Light gray and light brown;medium dense; <br /> SM dry;30%silt,70%fine grained sand;non-plastic; <br /> o moderate estimated permeability. <br /> B-2715' 15 -- --- ---- — --- 15.0 <br /> ML I an SILT: Light gray and light brown;medium stiff; Portland Type <br /> o — dry;70%silt,30%fine grained sand;non-plastic;low 16.0 I/II <br /> estimated permeabili�..——— —J <br /> Silty SAND: Light orange/brown;loose;dry;20%silt, <br /> w o e-27{��8 80%fine to medium grained sand;non-plastic;high <br /> 0 SM estimated permeability. <br /> a' <br /> o @19': 30%silt,70%fine grained sand;moderate <br /> o B-270 za20 estimated permeability. <br /> J <br /> Ij <br /> Z <br /> ------------------------ <br /> 21.0 <br /> o SP SAND with silt: White and brown;loose;wet; 10%silt, <br /> B-270 22' 90%fine to medium grained sand;non-plastic;high �- 22.0 <br /> o ",estimated perm <br /> o %eabili�.— -- — J <br /> ML I SILT with clay and sand: Light brown;stiff;moist;; 10<1.o B-270 z4 clay,80%silt,10%fine grained sand;low plasticity;low 24.0 <br /> — �estimatedoermeabilitY---------------i - <br /> SW SAND with silt, Light brown;loose,wet; 10%silt,90% <br /> 25 fine to coarse grained sand;non-plastic;high estimated 25.5 <br /> z --- \permeabNy.. ------------------J• <br /> s o Silty SAND: Light brown;very dense;moist;20%silt, <br /> CL <br /> B-27(@ 27' 75%fine to coarse grained sand;5%fine gravel; <br /> o SM non-plastic;low estimated permeability. <br /> 0 <br /> <i•o 8-270 NY 30.0 <br /> 3) Bottom of <br /> J <br /> Boring @ 30 ft <br /> bgs <br /> PAGE 1 OF 1 <br />