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DRILLING COMPANY: Holocene Drilling LOCATION: Three-Acre Park <br /> DRILLING METHOD: HSA,CME 850 tracked rig DATE STARTED: 6/28/2010 <br /> SAMPLING METHOD: SPT w/Autohammer DATE COMPLETED: 6/28/2010 <br /> ISURFACE ELEVATION: 13.00*feet LOGGED BY: P.Pearson <br /> w <br /> I co <br /> w m Q N w Standard Penetration Test <br /> U } t Q (140 lb.weight,30"drop) <br /> J 1.- Z N.'' p ♦Blows per foot <br /> I 0 Ce Z = <br /> I a� CO u) a. . z E _ =O a a� <br /> Wy CO < < w$ I- Wy <br /> o cn DESCRIPTION rn rn n.-- O 0 0 10 20 30 40 50 0" <br /> 60— —60 <br /> No sample at 60 feet bgs. Sampler full of heave,driller • <br /> - • over-drilled to prevent heave. • • <br /> - <br /> 65— XS-12 11-16-27 ... .. ... —65 <br /> _ ML Hard,dark olive gray,clayey SILT,moist,with some - <br /> organics. <br /> 70 - 7 CL Hard,gray, lean CLAY,moist.Cemented,some organics. S-13 15-22-15 AL ••• A —70 <br /> Driller notes harder drilling. <br /> - % Driller notes heave. , - <br /> 1 75—.4 <br /> : SP Dense,gray,poorly graded fine to medium SAND,wet. S-14 10 15-29 GS <br /> Driller noted 8"of heave before sampling at 75 feet bgs. • <br /> - <br /> - 4 feet of heave cleared out before drilling to 80 feet. - <br /> At 80 feet,additional 4 feet cleared out before taking <br /> sample. <br /> 80— :,::, , .. ..•,»♦-80 <br /> SP Very dense,gray to dark gray,slightly silty,fine to medium S-15 25-40-44 <br /> ••'`.. SM SAND,wet. Fine laminations noted. - <br /> 1 <br /> - <br /> 85— 1 0 »�85 <br /> .I .1, ML Hard,dark olive gray,slightly sandy,SILT,moist,fine _ ®S-16 33-50/6" <br /> , ,... <br /> - • SP laminations. / <br /> - ,Very dense,dark gray to gray,fine to medium SAND,wet. [ - <br /> - Borehole B-101 terminated at 86 feet below ground surface. - <br /> Ground water was observed at 14.9 feet bgs during drilling. <br /> I _ <br /> 90 For a proper understanding of the nature of subsurface conditions, this 0 20 40 60 80 100—90 <br /> exploration log should be read in conjunction with the text of the Water Content(%) <br /> Qeotechnical report. Plastic Limit f--+♦-� Liquid Limit <br /> NOTE: his log of subsurface conditions applies only at the specified location and on the date indicated Natural Water Content <br /> and therefore may not necessarily be indicative of other times and/or locations. <br /> I <br /> PUBLIC AMENITIES BORING:IMI <br /> RIVERFRONT DEVELOPMENT <br /> I HWAGEOSCIENCES INC EVERETT, WASHINGTON PAGE: 3 of 3 <br /> PROJECT NO.: 2015-061 A-2 <br /> BORING 2007-087.GPJ 6/26/12 <br />