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~. <br />u <br />- - BORING NUMBER EB-1 <br />PAGE 1 OF 2 <br />n CORNERSTONE <br />`: EARTH GROUP PROJECT NAME Ponderosa Active Adult Community <br />PROJECT NUMBER 132-2-1 <br />PROJECT LOCATION Ironwood Drive-Pleasanton, CA <br />DATE STARTED 12/17/19 DATE COMPLETED 12/17/07 GROUND ELEVATION 358 FT +/- BORING DEPTH 41.42 ft. <br />DRILLING CONTRACTOR Exploration Geoservices. Inc. LATITUDE LONGITUDE <br />DRILLING METHOD 8" HSA GROUND WATER LEVELS: <br />LOGGED BY AKT ~ AT TIME OF DRILLING Not Encountered <br />NOTES 1 AT END OF DRILLING Not Encountered <br /> TMS IOp lsepen Bia report MCamerarone EeM Gnmp,aM Snouio not Be usetl <br />ueslaneabne tlocum0nt.?MC eeacnpEan epdi9s onN lO Ne b~slbn at Ne <br />W <br />1- ~ <br />rl ye <br />Z UNCRAINED SHEAR STRENGTH, <br />ks( <br /> <br />E evpbnlion 91100 tlme a1CMinp. Subwdeoe mnmron may rifler et gM1et <br />IBUibns antl mey cnenpemwsloa99n wlln eme. Tne Eesaipnon pr9semetl l9a <br />TrensNOns bNween soil N <br />1 <br />MiG <br />l <br />tl <br />es me <br />f <br />~ <br />m Z <br />~ <br />w <br />~ <br />vm~w <br />~ NAND PENETROMETER <br />2U = m y <br />cO <br />Ona anmun <br />are <br />. <br />eCN0 <br />T <br />~ Y~ Ilon o ~ 8 d ~ ~ ~ ~ a N <br />Q TORVANE <br /> <br />j <br />~ <br />a _ <br />y¢ U <br />~6 <br />~rc ~ <br />U r <br />w <br />~ UNCONFINED COMPRESSION <br />w <br /> <br />w p <br />w <br />~ <br />~ <br />~ <br />ai <br />a <br />UNCONSOLIDATE0.UNDRAINED <br />u <br /> DESCRIPTION ~ ~ ~ ~ p. o <br />zo a.o a.o so <br />358.0 o Sandy Gravel (GP) <br /> ° ~ light brown <br />sand <br />medium dense <br />moist <br /> Q , <br />, <br />, <br />grades fine to coarse, gravel grades fine to a7 MG1A 2 <br /> coarse rounded <br /> Q <br />0 <br /> O 17 MG3A 1 <br /> O increase fine sand <br />353.0 5 .: poorly Graded Sand with Gravel (SP) <br /> medium dense, moist, light brown, sand 35 MC-3A 2 <br /> grades fine to coarse, gravel grades fine with <br /> occasional coarse <br /> ~ -------------- <br />349.0 .~.~; : Silty Sand(SM) to Mc-as 72 st <br /> 10 loose, moist, yellowish orange to light brawn, <br /> sand grades fine, trace clayey fines <br /> ~ ---------------------- <br />344.0 <br />~ Poorly Graded Sand (SPSM) 2t Mcss 3 7 <br /> 15 ~ <br />~ medium dense, moist, light brown, sand <br /> grades fine to medium <br /> -------------- <br />339.0 $iltyClay(CL) z2 MG6 toe z3 <br /> 20 stiff, moist, yellowish brown, trace fine sand <br /> increase in clay content, grades light gray and 37 Mc-r tts 77 <br /> 25 yellowish brown mottle, trace organics at 24 <br /> feet <br /> 32 Mc-0 107 20 <br /> <br /> 30 <br />i <br />--------------------- <br />325.0 <br />~ 34 Mc-a 713 to • <br /> <br />i 323.0 35 <br /> Continued Next Page <br />i <br />