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GEOTECHNICAL BORING LOG LB-4 <br />Project No. <br />12126.001 <br />Date Drilled <br />10-29-18 <br />Project <br />Kimley-Horn Main Place <br />Logged By <br />NA <br />Drilling Co. <br />2R Drilling <br />Hole Diameter <br />8" <br />Drilling Method <br />Hollow Stem Auger - 1401b - Autohammer - 30" Drop <br />Ground Elevation <br />' <br />Location <br />2800 N. Main Street Santa Ana CA <br />Sampled By <br />NA <br />d <br />a <br />SOIL DESCRIPTION <br />o <br />sY <br />a <br />a <br />a <br />Z <br />qs <br />N <br />- <br />Ny <br />a <br />a a <br />4a <br />4a <br />C <br />a <br />3 <br />a u <br />rn a <br />VU <br />This Soil Description applies only to a location of the exploration at the <br />~ <br />iLL <br />aLL <br />aJ <br />- <br />ao� <br />OQ <br />00l <br />time of sampling. Subsurfism Conditions may differ at other locations <br />O <br />W <br />O <br />f7 <br />Q <br />m <br />m1p <br />Z <br />aoa <br />'aj <br />andmaychangewithtime. Thedescriptionisasimplificationofthe <br />o. <br />y <br />R <br />p <br />U <br />y" <br />actual conditions encountered. Transitions between soil types maybe <br />T <br />g acual. <br />30 <br />S11 <br />4 <br />3 <br />OL <br />@30.531.5". CLAY (CH minor Silt, brown, medium stiff, moist. <br />3 <br />some fines. <br />R-1 <br />4 <br />35 <br />• <br />•�' <br />R-2 <br />15 <br />26 <br />GVV <br />@35". Sanity GRAVEL (GW), with Clay, brown, medium tlense, <br />moist, fine grained santl, fine to coarse amined gravels, <br />20 <br />fmclured cobble observed <br />•� S <br />•�� ' <br />S12 <br />10 <br />@37.5". gmyishbrown, medium dense to tlense, fine to coarse <br />16 <br />grained santl, fine to coarse grained gravels. <br />•� S <br />14 <br />' <br />40 <br />•� S <br />S13 <br />1 19 <br />@40". tlense. <br />1] <br />24 <br />I ' <br />•48 S <br />@42.5". very tlense. <br />'. <br />S14 <br />23 <br />28 <br />45 <br />•� <br />S15 <br />12 <br />@45". tlense. <br />14 <br />20 <br />•'' <br />I ' <br />•� S <br />Sib <br />'. ' <br />13 <br />� ► <br />23 <br />50 <br />' <br />Si] <br />13 <br />► <br />22 <br />25 <br />Total Depth : 51.5 X bgs, <br />No groundwater encountered during drilling, <br />Boring was backtilled with soil cuttings and surface was <br />patched with coldarix asphalt upon completion of drilling on <br />October 29, 2018. <br />55 <br />SAMPLETYPEB: <br />TYPE OF TESTS: <br />40, <br />B BULK SPfaPLE -tee %FINES PASSING DS DIRECT BA SIEVE ANALYSIS <br />ISHEARON IN BE VALENF <br />C CORE SAMPLE AL El <br />WDROMONINDIX SPND ECIFIC <br />CONSO DATIOIIs <br />G GRABBAMPLE CN CONBODDATION H HYDROMETER SG <br />UNCONFINED CITY <br />R RING SAMPLE CO COI -LAPSE MD UC UNCONFINED COMPRESSIVE STRENGTH <br />RROSIO POCKET PENETROMETER <br />B SPLIT SPOON SAMPLE CR CORROSION PP POCKET PENETROMETER <br />T TUBE SAMPLE CU UNDRNNED IRIA>1AL RV RVPLUE <br />"' This log is a part of a report by Leighton and should not be used as a stand-alone document"' Page 2 of 2 <br />