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(*DRILLING COMPANY: Holocene Drilling DATE STARTED: 11/5/2018 1I <br /> DRILLING METHOD: CME 830 Tracked Rig,HSA&Mud Rotary DATE COMPLETED: 11/5/2018 <br /> SAMPLING METHOD: SPT with Autohammer LOGGED BY: B.Thurber/A.Ong <br /> LOCATION: See Figure 2 <br /> cn w <br /> cn ce m z^ w <br /> Standard Penetration Test <br /> (I) <br /> U Q_ z - U (140 lb.weight,30"drop) Z <br /> p cn.5 i_ p A Blows per foot O <br /> N w w wua, Z Q <br /> 3 >^ <br /> W >- 0) < < W 0 _J <br /> 0 u > DESCRIPTION cn cn a S 0 0 0 10 20 30 40 50 w" <br /> 30— A <br /> "Medium dense",REFUSE:wood fragments and plastic ® S-7 5-6-6 <br /> - sheeting.poor recovery.Black slurry with oil sheen. <br /> -90%wood <br /> I <br /> 35— "Very dense",REFUSE:wood,metal scraps,and plastic. ® S-8 50/4" A <br /> - Black slurry with oil sheen and creosote odor.Poor recovery. <br /> -90%wood <br /> I <br /> ML <br /> 40— A <br /> No recovery.Black slurry in sampler,no sheen but slight ® S-9 2-2-7 <br /> - creosote odor.Drove Refuse into Alluvium,based on blow <br /> counts. <br /> 45— • <br /> I <br /> Medium stiff,olive brown and olive gray,clayey SILT,moist, S-10 3-3-3 <br /> with fine lenses of woody debris. <br /> T.'. SM i 1� <br /> - : �`• <br /> (ALLUVIUM) 1 <br /> • <br /> - SM Loose,dark brown,silty SAND,with woody debris. S-11 GS <br /> Loose,gray,silty,fine to medium SAND,moist. Stratified. DS <br /> UW <br /> 50— -.,.::. A <br /> . SP Loose,gray to yellow brown,slightly silty,fine to medium S-12 2-3-5 <br /> - : SM SAND,wet.Some fine gravel. <br /> I <br /> SM <br /> 55— A <br /> Dense,gray,very silty,very fine SAND,moist.With finelyX S-13 6-15-16 <br /> - bedded clayey silt,sand and trace fine gravel. <br /> - (ADVANCE OUTWASH) <br /> I <br /> 60— <br /> 0 20 40 60 80 100 <br /> 111 <br /> Water Content(%) <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 /> OMIGEOTECHNICAL ENGINEERING REPORT BH-37 <br /> RIVERFRONT BOULEVARD <br /> HWAGEOSCIENCES INC. EVERETT, WASHINGTON PAGE: 2 of 3 <br /> PROJECT NO.: 2015-061 FIGURE: A-3 <br /> BORING-DSM 2015-061.GPJ 12/10/18 <br />