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Conn estoga-Rovers&�ociates •.� 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-28 <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 60.3 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) 23.0 ft bgs(15-Mar-07) ! <br /> REVIEWED BY B.Wilken,PG#7564 DEPTH TO WATER(Static) NA t <br /> REMARKS Collected grab groundwater sample through 3/4 inch diameter temporary PVC casing with 10' of screened casing <br /> N <br /> CL =-Y a LU a$' v 0-0 DESTRUCTION METHOD DESCRIPTION Z= WELL DIAGRAM <br /> N o <br /> ASPHALT: 3 inches thick. 0.3o a e Concrete <br /> FILL:Road Base 1.0 <br /> FILL:Silty Gravelly SAND:- Light brown;dense;dry; <br /> 30%silt,50%sand,20%gravel including concrete <br /> fragements;non-plastic;moderate estimated permeability. <br /> 4.0 <br /> Silty SAND: Light brown;medium dense;dry;40%silt, <br /> 5 60%fine grained sand;non-plastic;moderate estimated <br /> SM permeability. <br /> @5': 20%silt,80%fine to medium grained sand, high <br /> estimated permeability. __________ 7,0 <br /> Sandy SILT: Light brown;medium stiff;dry;70%silt, <br /> o ML T 30%fine grained sand;non-plastic;low estimated <br /> permeability. 9.0 <br /> 0 _ SILTwith sand Light gray;medium stiff;dry;90%silt, <br /> B-28@ 10' 10 10%fine grained sand;non-plastic;low estimated <br /> ML permeability. <br /> @11': Light gray and light brown. <br /> 0 <br /> 12.5 <br /> Silty SAND: Light brown and white;loose;dry;20%silt, <br /> 80%fine grained sand;non-plastic;moderate estimated <br /> o permeability. <br /> B-280 15' <br /> 0 15 SM Portland Type <br /> 0 1/II <br /> J <br /> LL o @17': Light gray. <br /> LU B-28@ 18" <br /> 'a _ ____________________ 19.0 <br /> Vi o ML SILT with sand Light gray and brown;medium stiff;dry <br /> o s-2ec�20' 20 —— 90%silt, 10%fine grained sand;non-plastic;low 20-0 <br /> Zestimated—permeabilily.——————————————J <br /> a Slltv SAND: Light <br /> B-za@ z2brown;loose;dry;30%silt,70%fine <br /> it grained sand;non-plastic;moderate estimated <br /> ' <br /> > permeability. <br /> o _ _______ _______ _____ ___ 23.0 <br /> z o SW SAND with silt: Brown;loose;wet; 10%silt,90%fine to <br /> <1.0 B-28@ 24' • ecoarse rained sand;high estimated permeability. 24.0 <br /> N ML— •.II Sandy SILT: Light brown;medium stiff;moist;70%silt, 25.0 <br /> 25 — <br /> 30%fine grained sand;non-plastic;-low estimated <br /> permeability-------------------� <br /> o SAND: Brown and white;medium dense;wet; 100% <br /> a B-280 27 SW fine to coarse grained sand:non-plastic;high estimated <br /> permeability. <br /> 0 28.0 <br /> cr -------------------------- <br /> o Silty SAND: Light brown;very dense;moist;30%silt, <br /> o <br /> SMT <br /> 70%fine to coarse grained sand;non-plastic;low <br /> estimated permeability. 300 <br /> a �1° e-2e0 sa 30 . Bottom of <br /> 0 <br /> 0 <br /> J Boring @ 30 ft <br /> bgs <br /> PAGE f OF 1 <br />