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Combria Environmental Technology, Inc BORING/WELL LOG <br /> 1 144- 65th St <br /> Oakland,CA 94608 <br /> Telephone (510)420-0700 <br /> Fax (510)420-9170 <br /> CLIENTNAME Eauiva Services LLC _ BORING/WELLNAME MW-5A&B <br /> JOB/SITE NAME Ripon-341 __ DRILLING STARTED 26-Oct-29 <br /> LOCATION 341 Main Street-Rrpon,Cahfomia __ DRILLING COMPLETED , 27-Oct-99 <br /> PROJECT NUMBER 240-0324 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER Grego Drilling ^^ GROUND SURFACE ELEVATION Not Surveyed <br /> DRILLING METHOD Hollow-Stem auger TOP OF CASING ELEVATION NA <br /> BORING DIAMETER^ 12' SCREENED INTERVAL NA <br /> LOGGED BY B Jakub DEPTH TO WATER(First Encountered) 35 Oft(25-Oct-99) _ <br /> REVIEWED BY 0 Ratchve, PE DEPTH TO WATER(Static) NA t <br /> REMARKS Hand auaered to 4 5'bas,located behind station buildingLu z _ <br /> to U <br /> E 0 Z a W Q.a 0 Q O LITHOLOGIC DESCRIPTION `z� WELL DIAGRAM <br /> m0 �� = 0=� QF-' <br /> 4 oil] <br /> H p <br /> SIPHALT <br /> 03 <br /> ;may SAND(SM),dark brown(10 yr3/3),damp,loose <br /> SM sand,30%silt,70%fine grained sand,no plasticity, <br /> medium to high estimated permeability <br /> _ 35 <br /> SAND(SP),dark yellow brown(10 yr3/3),damp,loose <br /> sand,10%silt,90%fine grained sand no plasticity,high <br /> <1 0 s Mw-5A 5 5' SP <br /> esllmated permeability <br /> 75 <br /> Silty SAND(SM),dark brown(10 yr5/3),damp,very <br /> loose to loose sand,45%silt,55%sand,high to medium <br /> 14 estimated permeability <br /> <1 0 ,o Mw-5A 9 5 10 SM <br /> _ 125 <br /> SAND(SP),yellow brown(t Oy 5/4),damp,loose sand, <br /> 5%s-it,95%fine grained sand,^o plasticity,high <br /> • estimated permeability <br /> s <br /> <1 0 ° MW 5A 15 <br /> 150' SP <br /> ° <br /> 193 Portland Type <br /> <1 0 ,c MW 5A -20—'. <br /> Sandy SILT(ML),dark gray brown(10 yr4/2),damp, 196 lAl <br /> 190 medium stiff,3%clay,62%slit,35%fine grained sand, <br /> ow astici medium to low estimated ermeabili <br /> Sp SAND(SP),ye law brown(10 yrs 4),damp,loose sand, <br /> 5%silt,95%fine grained sand,no plasticity,high <br /> r estimated permeability <br /> 0 20 3'-yellow brown,10%silt,90%fine grained sand, 240 <br /> LL ° medium high estimated ermeabill <br /> o ct 0 e MW-SA 25 Silty SAND(SM),brown(10yr3/3), amp,loose sand, <br /> R 24 5' 15%slit,85%fine sand,medium estimated permeability <br /> SM @ 24 5'-mica flakes,medium estimated permeability <br /> z <br /> 0 <br /> S <br /> s 2s 0 <br /> ' SAND(SW),yellow brown(10 yr5/4),damp,loose 296 <br /> <i 0 MW-5A30 sand, 5%silt,95%coarse to fine grained sand,no 298 <br /> 9 31}0' lasticity.hiah estimated Renneabilitv <br /> Shy SILT(SM),dark yellow brown(f 0 yr5/4),damp, <br /> SW a-.. �i .-�����. .� Brei .aa new : <br /> $ sand,tow_plasticity,medium to low estimated permeabilid <br /> 5 SAND( yellow brown(10 yr5 4),damp,loose 340 <br /> a a SM sand, 5%silt,95%coarse to fine grained sand,no 348 <br /> <1 0 Mw 5A 85 Iastici high estimated ermeabill 351 <br /> 34 5 Silly SAND(SM),yellow brown,wet, oose dense sand, <br /> 35%silt 65%sand medium estimated ermeabill <br /> $ SM Silty SAND( ),yellow brown,wet,loose dense sand, <br /> 0%silt 60%fine sand medium estimated ermeabilit 380 <br /> antfnued Next Page PAGE i OF 2 <br />