3535 RIVERFRONT BLVD Geotech Report 2023-02-22

'DRILLING COMPANY: Holocene Drilling LOCATION: Three-Acre Park DRILLING METHOD: HSA,CME 850 tracked rig DATE STARTED: 6/30/2010 SAMPLING METHOD: SPT w/Autohammer DATE COMPLETED: 6/30/2010 SURFACE ELEVATION: 13.00*feet LOGGED BY: P.Pearson cn cc w m w U Standard Penetration Test m Z-- w o } z Q (140 lb.weight,30"drop) O L1.1 w w H Z ♦Blows per foot = m 0 a. a m� w w y 0) cn Q Q w I- lY w y o m DESCRIPTION m m a�- 0 0 0 10 20 30 40 50 —0 II 0 O" GP Gravel in cuttings to 2 feet bgs,hard drilling noted. (FILL) _ �oD — oOr °Qc �0 0 OQO 1 x 5 ML Very stiff,dark brown gray,sandy SILT,wet to moist. S-1 6-13-4 OC Abundant organics and wood debris. - (ALLUVIUM) Low recovery in sample S-1 at 5 feet bgs. - Organic content of sample at 5 feet=21.4%. 10 MH Soft,gray,elastic SILT,moist to wet,with organics. S-2 AL ♦ 15 SM Loose,gray,very silty,fine to medium SAND,wet,some S-3 1-3-2 GS A • —15 - :'�`• organics. - 20 SP Very loose,gray,slightly silty,poorly graded fine to medium S-4 0-0-0 %F —20 SM SAND,wet. •ti, -;; --25 25 SP Very loose,gray,poorly graded fine to medium SAND,wet. S-5 0-0-0 GS A Trace organics. - Boring terminated at 26.5 feet below ground surface,due to Fora proper understanding of the nature of subsurface conditions, this 0 20 40 60 80 100 exploration log should be read in conjunction with the text of the Water Content(%) greotechnical report. Plastic Limit �--S I Liquid Limit NOTE: his 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. .... BORING: PUBLIC AMENITIES B-106 RIVERFRONT DEVELOPMENT I-IWAGEO�SQENcE$INC EVERETT, WASHINGTON PAGE: 1 of 1 PROJECT NO.: 20 5-OG FIGURE: A-7 BORING 2007-087.GPJ 6/26/12