7505 SEAWAY BLVD Geotech Report 2022-10-25

DRILLING COMPANY: HWA GeoSciences Inc. DATE STARTED: 2/2/2016 DRILLING METHOD: Hand Bucket Auger DATE COMPLETED: 2/2/2016 SAMPLING METHOD: Non Standard Penetration Test(DCP) LOGGED BY: S.Pemble LOCATION: See Figure 2 SURFACE ELEVATION: 576.0 *feet co m z w Dropweight Cone Penetrometer Converted to v a ? r CO I__ Standard Penetration Resistance z p z co c F p ♦ Blows per foot O CO W W W co P I--.� Co 0) 0_ o 3 W = > We • >- 0) < < W o I— IX -J a°�i o- CO D DESCRIPTION co co a••, 0 O 0 10 20 30 40 50 W 0 .'. SM Dense,gray,silty,fine grained SAND with quarry spalls and fine to medium subrounded gravel,moist to wet. - (GLACIAL TILL FILL) A A iii 575 •• .. SM Dense,gray,silty,fine to coarse grained SAND with fine to A A coarse gravel and cobbles,moist. A gi I 4-inches Hot Mix Asphalt. Asphalt was chipped out of hand hole with digging bar. r SM \ (HMA) / A Dense,gray,silty,fine to medium grained SAND with A medium subrounded gravel and cobbles,wet. A . . . (GLACIAL TILL FILL) r A • Hand hole was terminated at 2.3 feet below ground surface A due to ground water seepage at 16 inches below ground A A surface. A ♦A * A »A •A A A �. .. _ A A ♦ : . 5— 4>4 – 0 20 40 60 80 100 Water Content.(%) Plastic Limit 1-10—I 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. Hand Hole UM Seaway Transit Facility HH-1 Community Transit H YkGEOSCIENCES INC. Everett, Washington PAGE: 1 of 1 PROJECT NO.: 2014-117-21 FIGURE: A-8 BORING-DSM 2014-117-21.GPJ 3/8/16