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'DRILLING COMPANY: Holocene Drilling DATE STARTED: 11/7/2018 <br /> DRILLING METHOD: Dietrich D-50 Turbo,HSA&Mud Rotary DATE COMPLETED: 11/8/2018 <br /> SAMPLING METHOD: SPT with Autohammer LOGGED BY: A.Ong/B.Thurber <br /> LOCATION: See Figure 2 SURFACE ELEVATION: 39.5 ±feet <br /> I <br /> gtandard Penetration Test <br /> co m 0 w <br /> 0 a} 2 1- U coN Q (140 lb.weight,30"drop) Z <br /> J O Z U .5 I- p ♦ Blows per foot O <br /> N w w w� Z � <br /> = 0 J J a' Q <br /> 3 >^ <br /> LUcu >- 0 a s w ° I- � � <br /> 0 cn D DESCRIPTION co co a - 0 0 0 10 20 30 40 50 w" <br /> 0— ..., <br /> Soft,brown mud. - <br /> ;o 0 (FILL) - <br /> - °O <br /> Dense to very dense,olive brown,silty,fine to medium SAND \/ S-1 8-20-26 <br /> )0 0 over sandy SILT with fine to medium subangular gravel,upper [J� - <br /> - °O 5 inches wet and muddy.Lower 13 inches moist.1-inch <br /> a L° broken concrete at bottom. — 35 <br /> 5— >0 0 >>A <br /> Very dense,dark olive brown,fine to medium sandy SILT, S-2A 8-32-20 <br /> - ° moist.Upper portion wet to moist with subrounded-rounded <br /> S-2B <br /> ° L° fine-medium gravel.Lower 6 inches broken gray-white - <br /> - )0 0 concrete with subangular-angular fine-medium gravel,dry. I <br /> °O - <br /> - <br /> a L° - <br /> - �0 () <br /> °O — 30 <br /> 10— a L° A <br /> Medium dense,dark olive brown,sandy SILT in upper 6 ®S-3A 7-6-9 _ <br /> - 0 0 inches with fine subangular-angular gravel,moist.Lower 4 S-3B <br /> ° inches broken concrete(2 inches)and black woody debris(2 - <br /> - a L° inches).Possible REFUSE contact.Gravelly drilling at 8 feet. <br /> >0 0 - I <br /> - °O <br /> - a 0_a - <br /> >0 0 — 25 <br /> 15 - "Dense",dark olive brown,6 inches of sandy SILT with ® S-4 8-20-15 ♦ _ <br /> - subrounded fine-medium gravel,moist.2 inches of silty black <br /> SAND with Refuse lodged in tip.Contains rubber,wood,and - <br /> - subrounded fine gravel. <br /> - (REFUSE) <br /> — 20 <br /> 20 6 inches of wet lag from above:soft,olive brown,sandy SILT [Z] S-5 4-8-9 ♦ _ I- with subrounded fine gravel.2 inches of black,woody debris <br /> with sand,moist.REFUSE wedged in sampler tip. - <br /> - -90%wood <br /> -10%sand and fine subrounded gravel - <br /> 15 <br /> 25 "Medium dense",4 inches of wet lag:soft,olive brown sandy ® S-6 8-12-12 A _ <br /> - SILT with subrounded fine gravel.3 inches of black,very stiff, <br /> I <br /> dry to moist refuse material.Water encountered at 25 feet. - <br /> - REFUSE. <br /> - <br /> -50%wood _ I <br /> _ -40')/0 charred rubber and glass <br /> -10%plastic fibers — 10 <br /> 30 • <br /> — <br /> 0 20 40 60 80 100 <br /> I <br /> Water Content(°/a) <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 /> I <br /> GEOTECHNICAL ENGINEERING REPORT BH-46 <br /> RIVERFRONT BOULEVARD <br /> HWAGEOSCIENCES INC. EVERETT, WASHINGTON PAGE: 1 of 3 <br /> PROJECT NO.: 2015-061 FIGURE: A-12 <br /> BORING-DSM 2015-061.GPJ 12/10/18 <br />