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"DRILLING COMPANY: Holocene Drilling DATE STARTED: 11/7/2018 <br /> DRILLING METHOD: CME 830 Tracked Rig,HSA&Mud Rotary DATE COMPLETED: 11/7/2018 <br /> SAMPLING METHOD: SPT with Autohammer LOGGED BY: B.Thurber <br /> LOCATION: See Figure 2 <br /> Z w <br /> Standard Penetration Test <br /> 0 a .,co I-U I- (140 lb.weight,30"drop) Z <br /> J O N.S p ♦ Blows per foot O <br /> W W W-I J �, Z P <br /> w Q <br /> CL 03 >^ <br /> W d 2 V) Q Q W 2 I- -Id <br /> o tt. U) D DESCRIPTION en N 0- 0 0 0 10 20 30 40 50 W'" <br /> 30— <br /> REFUSE:wood,fabric,plastic and plastic sheeting,and white ® S-7 13-14-17 <br /> - rubber,with olive brown,silty SAND.-80%Refuse,-25% <br /> rottable of total.Cuttings black,silty slurry with wood <br /> - fragments. <br /> 35— A <br /> REFUSE:brown wood.Poor recovery.Wood,white rubber, ® S-8 12-12-14 <br /> - pretty decomposed paper,glass,and plastic. <br /> `��� ,Bottom of Refuse @ approximately 38 feet,per driller. ,- <br /> PT <br /> - /, ,/i, <br /> A <br /> 40— `/; No recovery.Switched to mud rotary. NR 3-3-4 <br /> 0 i, : (ALLUVIUM) <br /> I���, TNR <br /> 45— . , <br /> Soft to medium stiff,dark brown,organic SILT and PEAT, <br /> - = =' wet,with woody(mosty decomposed)fibers. 11 S-9A <br /> 0 i, . S-9B <br /> I <br /> 50— `�' <br /> Medium stiff,dark brown,organic SILT grading to olive gray X S-10 1-5-10 A <br /> - sandy SILT grading to very silty,fine to medium SAND,moist <br /> 0 i, , to wet. <br /> SM Dense drilling at 52 feet. <br /> I/ <br /> 55— • <br /> Dense,gray,slightly silty,fine to medium SAND,wet,with 1 X S-11 15-16-21 <br /> - inch silty sand lens. <br /> (ADVANCE OUTWASH) <br /> . <br /> SP <br /> - SM <br /> 60— •• — »A <br /> 0 20 40 60 80 100 <br /> Water Content(%) <br /> Plastic Limit 1--11-1 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 /> ` <br /> GEOTECHNICAL ENGINEERING REPORT BORING: <br /> IT <br /> RIVERFRONT BOULEVARD BH-45I HWAGEOSQENCESINC. EVERETT, WASHINGTON PAGE: 2 of 3 <br /> PROJECT NO.: 2015-061 FIGURE: A-1 1 <br /> BORING-DSM 2015-061.GPJ 12/10/18 <br />