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'DRILLING COMPANY: Holocene Drilling DATE STARTED: 11/7/2018 ` I <br /> DRILLING METHOD: Dietrich D-50 Turbo,HSA&Mud Rotary DATE COMPLETED: 11/7/2018 <br /> SAMPLING METHOD: SPT with Autohammer LOGGED BY: A.Ong <br /> LOCATION: See Figure 2 SURFACE ELEVATION: 36.0 f feet <br /> co g Standard Penetration Test <br /> m Z^ w <br /> J wa. 2 < U I- Q (140 lb.weight,30"drop) Z <br /> p' w w w . /- o A Blows per foot O <br /> Et- <br /> 03 >^ <br /> w d >- u) < < w 2 w I- cc -IN <br /> 0= U D DESCRIPTION cn cn a 0 00 10 20 30 40 50 w_. <br /> 30— <br /> "Medium dense",black,REFUSE,gooey and wet.Bits of ® S-7 16-14-10 <br /> - gravel and wood in slurry matrix.Plastic and fibers wedged in ,— 5 <br /> sampler tip.Ground water encountered at 30 feet. <br /> 35— A"Medium dense",black,REFUSE,gooey and wet.Large ® S-8 5-6-7 II <br /> - chunk of wood and plastic in sampler tip.Auger cuttings still 0 <br /> coming up with refuse. <br /> - -40%wood - <br /> - -10%glass <br /> -50%plastic sheeting and fibers - <br /> 40— "Medium dense",black,REFUSE,gooey and wet.Oil sheen S-9A 8-8-8 A II <br /> - present,slurry matrix more watery.Upper 4 inches of sample S-9B — _5 <br /> is medium-coarse SAND with subrounded gravels,lower 6 <br /> - inches is firm wood and plastic fibers. _- <br /> 111 <br /> 45— %i : PT No recovery.Oil sheen in sampler. NR 14-6-6 I <br /> - L, 0/. <br /> 0�, (ALLUVIUM) - <br /> 1, \\/, <br /> - � 0/, - <br /> 50— 0,, No recovery.Oil sheen in sampler.Switched to mud rotary for NR 3-2-4 A - <br /> - ', ,0', Shelby tube sample at 52.5 feet. — -15 <br /> - i ' CL Woody slough over Stiff,olive gray,CLAY,moist.Scattered — I • I - <br /> organics. S-10 OC <br /> AL <br /> _ — : PT Stiff,very dark brown,PEAT,moist. DS - <br /> OH ,Stiff,dark grayish brown,organic SILT,moist. UW _ <br /> 55— . , SP Very dense.No recovery. NR 14-22-30 ��� <br /> SM — -20 <br /> 60 A <br /> — <br /> 0 20 40 60 80 100 <br /> Water Content(%) <br /> Plastic Limit I • I Liquid Limit <br /> NOTE: This 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 /> BORING: <br /> GI TIGEOTECHNICAL ENGINEERING REPORT BH-43 <br /> RIVERFRONT BOULEVARD <br /> HWAGEOSCIENCESINC. EVERETT, WASHINGTON PAGE: 2 of 3 <br /> PROJECT NO.: 2015-061 FIGURE: A-9 <br /> BORING-DSM 2015-061.GPJ 12/10/18 <br />