3800 RIVERFRONT BLVD Geotech Report 2023-05-04

DRILLING COMPANY: Holocene Drilling DATE STARTED: 11/5/2018 DRILLING METHOD: CME 830 Tracked Rig,HSA&Mud Rotary DATE COMPLETED: 11/5/2018 SAMPLING METHOD: SPT with Autohammer LOGGED BY: B.Thurber LOCATION: See Figure 2 Standard Penetration Test Ill 0 a 2 co .s I- ¢ (140 lb.weight,30"drop) -J O Z .52- � p A Blows per foot z W W W co Z H = 0 J J W 3 >^ o w i o'r= U) D DESCRIPTION U) U) a O 0 w 0 10 20 30 40 50 SM I _ Very dense,brown,silty,gravelly,SAND,moist.Grayish S-1 11-22-29 >>A brown below-3.5' - (FILL) 5A I — Dense,dark brown and grayish brown to olive brown,silty, X S-2 8-14-24 - gravelly,SAND,moist. IMedium dense,olive gray,silty,fine to medium SAND,moist. S-3 12-12-16 A 1"lens of day and medium sand at-10.1'. ML Medium dense,dark brown with gray,organic,sandy SILT, - moist. I SM 15— • I Dense,gray with brown mottling,slight fine gravelly,very silty, S-4 12-16-14 - SAND,moist. _ REFUSE in cuttings:blackish brown woody fragments and plastic debris. - (REFUSE) I 20— Q • "Dense",dark brown and brownish black,REFUSE:wood with S-5 10-10-20I - 3"lens of newspaper,1/2"lens of green glass,plastic sheeting,and wood in sampler tip.No soil.-85%rottable. 25 "Very dense",REFUSE:plastic sheeting and fine wire.Black ® S-6 26-50/2" >>A - slurry.Poor recovery.-30%rottable. Paper,wood,and plastic in cuttings. I 30— 0 20 40 60 80 100 I Water Content(%) Plastic Limit I---411-1 Liquid Limit NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated Natural Water Content and therefore may not necessarily be indicative of other times and/or locations. i I BORING: G MGEOTECHNICAL ENGINEERING REPORT BH-3H RIVERFRONT BOULEVARD HWAGEOSCIENCES INC. EVERETT, WASHINGTON PAGE: 1 of 3 PROJECT NO.: 2015-061 FIGURE: A-4 BORING-DSM 2015-061.GPJ 12/10/18