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Con nestoga-Rovers&`„bociates 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-25 <br /> JOB/SITE NAME JIMCO Truck Plaza DRILLING STARTED 14-Mar-07 <br /> LOCATION 1022 Frontage Road, Ripon,CA DRILLING COMPLETED 14-Mar-07 <br /> PROJECT NUMBER 165-1556 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER Gregg Drilling C57#485165 GROUND SURFACE ELEVATION 58.5 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) 22.0 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 /> O U F <br /> E <br /> 2 W Z F N N Z0 <br /> a W a $' Q.0 DESTRUCTION METHOD DESCRIPTION F- WELL DIAGRAM <br /> FL H E w o '� Zpn=~ <br /> ra W <br /> 0 <br /> ASPHALT: 3 inches thick. 0.3 00Concrete <br /> ° '° <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 /> @4': Cemented zone of Silty SAND-hard pan:very <br /> 5— dense;low estimated permeability. <br /> 6.0 <br /> ML I SILT with sand Light brown;medium stiff;dry;90%silt, <br /> 10%fine grained sand;non-plastic;low estimated �- 7.0 <br /> eermeabilit . <br /> ----y------------------J <br /> SP SAND with silt: Light brown and white;loose;dry;10% <br /> silt,90%fine to medium sand;non-plastic;high estimated <br /> 9.0 <br /> 0 \permeability-------------------. <br /> B-25@ 10" ML SILT with sand: Light brown;medium stiff;dry;90%silt, 10.0 <br /> 10__SM \ 10%fine grained sand;non-plastic;low estimated <br /> -- \permeability_------- — --7 11.0 <br /> \ Silty SAND: Light brown;loose;dry; 10%silt,90%fine / <br /> 0 1 to medium grained sand;non-plastic;moderate estimated / <br /> ML \permeability_———_ <br /> SILT with sand: Light brown;medium stiff;dry;90%silt, <br /> 10%fine grained sand;non-plastic;low estimated 14.0 <br /> o -- \permeability-------------------. — <br /> B-25@ 15' SILT: Light brown and light gray;medium stiff;dry; <br /> F 15 ML 100%silt;non-plastic;low estimated permeability. <br /> 16.0 Portland Type <br /> _ _____________ _____ <br /> o SM_ .�.I Silty SAND: Light brown and light gray;medium_dense;_ I/II <br /> -- .. 30%silt,70%fine grained sand;non-plastic;moderate 17.0 <br /> LL 0estimated permeabili�.----- — -- —J <br /> o B-2s@'e' ML SILT: Light brown and light gray;medium stiff;moist; <br /> —— 100%silt;non-plastic;low estimated permeability. —_—— 19.0 <br /> 6 o Silty SAND: Light brown;medium dense;dry;40%silt, <br /> o e-zs@ z°' 20 60%fine to medium grained sand;non-plastic;moderate <br /> Z SM estimated permeability. <br /> 0 <br /> EL 3 <br /> B-250-22' ------ 22.0 <br /> Y SAND with silt: Light gray and white; loet;ose,w10% <br /> F silt,90%fine to medium grained sand;non-plastic;high <br /> z o SP estimated permeability. <br /> <1.0 B-250 24' <br /> ___ _______ _______ _____ 25.0 <br /> SAND: Light gray and white;loose;wet; 100%fine to <br /> Z coarse gr <br /> 0 SW grained sand;high estimated permeability. _ — 26.5 <br /> 0. B-z5@ 27' Silty SAND: Orange/brown;very dense;moist;30%silt, <br /> } 70%fine to coarse grained sand;non-plastic;low <br /> SM estimated permeability. <br /> ____ 29.0 <br /> a 0 <1 0 SM Sltty SAND with gravel: Orange/brown;very dense <br /> 0 B-zs@ ao' 30 moist;20%silt,70%fine to coarse grained sand, 10%fine 30.0 <br /> oravel•non-plastica low estimated permeability. Bottom of <br /> Boring @ 30 ft <br /> bgs <br /> PAGE 1 OF 1 <br />