3535 RIVERFRONT BLVD Geotech Report 2023-02-22

(*DRILLING COMPANY: Holocene Drilling SURFACE ELEVATION: 12.50 t feet DATE STARTED: 6/30/2010 DRILLING METHOD: HSA,CME 850 tracked rig CASING ELEVATION t feet DATE COMPLETED: 6/30/2010 SAMPLING METHOD: SPT w/Autohammer LOGGED BY: P.Pearson LOCATION: Three-Acre Park w g w w Q y Standard Penetration Test } g' WI- w U (140 lb.weight,30"drop) 4 O w w w e w Q •Blows per foot I 0 U) a Q . Cr Ow H.. CO � N W Q Q W$ H w U CL W o v> > DESCRIPTION cn cn -`. 0 a to 0 10 20 30 40 50 0 0— —0 !•••• �•�•� Rubber in cuttings at 2 feet bgs. A _ SP Very dense,slightly silty,gravelly,fine to medium SAND, S-1 16-24-26 _ SM moist.Trace organics. (FILL) —' OL Soft,brown,slightly gravelly,slightly sandy,organic SILT, S-2 2-1-1 A wet. - (ALLUVIUM) - Low recovery in sample S-2 at 7.5 feet. 10- -' —10 _ OL Very soft,brownish gray,organic SILT,moist to wet. Some S-3 0-0-0 _ - — wood waste. 15- -' —15 _ SM Loose,dark brown gray,silty fine SAND,wet. Laminated S-4 4-4-4 A ti:•`•••• organics. 20— —20 _ •• ti • �. - ::� SP ` A Medium dense,gray,slightly silty,fine to medium SAND, S-5 8-14-15 • :m• ~. SM wet. Laminated,trace organics. 25— —25 •_ :=;m. • _ SM Medium dense,gray,silty,fine to medium SAND,wet,with S-6 9-14-17 `: _ ` organics and wood. := 111 • : - • •.�.',;' Low recovery in sample S-6 at 27.5 feet bgs. • 30— m —30 0 20 40 60 80 100 Water Content(%) Plastic Limit 1--• Liquid Limit Natural Water Content NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated and therefore may not necessarily be indicative of other times and/or locations. PUBLIC AMENITIES BORING: ON1 RIVERFRONT DEVELOPMENT HWAGE SCIENCES INC. EVERETT, WASHINGTON PAGE: 1 of 2 PROJECT NO.: 2015-061 FIGURE: A-6 PZO 2007-087.GPJ 6/26/12