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/DRILLING COMPANY: Holocene Drilling DATE STARTED: 11/5/2018 <br /> DRILLING METHOD: CME 830 Tracked Rig,HSA&Mud Rotary DATE COMPLETED: 11/5/2018 <br /> SAMPLING METHOD: SPT with Autohammer LOGGED BY: B.Thurber <br /> LOCATION: See Figure 2 <br /> g Standard Penetration Test <br /> cn m z w <br /> 0 a 2 1-U I- Q (140 lb.weight,30"drop) Z <br /> J O Z v� A Blows per foot O_ <br /> 2 O � J J L �' Z H <br /> 03 w 8 j A <br /> 0_4w d >- U) < < w 2 1- 0 J <br /> o DESCRIPTION cn co a 0 0 0 10 20 30 40 50 W <br /> 60— -.:• SM Dense,dark gray,clean,fine to medium SAND,wet.With 6" S-14 8-14-16 <br /> - lens of SILT,with trace fine sand,scattered wood fragments, <br /> moist.-10%rottable. <br /> 65— Poor recovery,residual gravelly sand and broken gravel with S-15 16-22-37 >>A <br /> - silty sand in sampler tip. <br /> 70 Very dense,gray,fine to medium gravelly,fine to medium S-16 34-34-30 >>A I <br /> - SAND,wet.With lenses of silt. A <br /> 75 \Very dense;poor recovery. Lag of gray,fine gravel. r®S-17 50/4" >>A <br /> 111 <br /> - Borehole terminated at 75.3'below ground surface(bgs). <br /> Groundwater encountered at 22'bgs during drilling. <br /> - Borehole abandoned with 3/8"bentonite chips. <br /> 80— <br /> I <br /> - <br /> 85— <br /> I <br /> 90— <br /> 0 20 40 60 80 100 <br /> Water Content(%) 111 <br /> Plastic Limit I---111—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 /> J <br /> BORING: <br /> DIMGEOTECHNICAL ENGINEERING REPORT BH-3H <br /> RIVERFRONT BOULEVARD <br /> HWAGEOSCIENCESINC. EVERETT, WASHINGTON PAGE: 3 of 3 <br /> PROJECT NO.: 2015-061 FIGURE: A-4 111 <br /> BORING-DSM 2015-061.GPJ 12/10/18 <br />