Laserfiche WebLink
DRILLING COMPANY: Holt Services, Inc. DATE STARTED: 3/1/2023 <br />DRILLING METHOD: Hollow Stem Auger, Mobile Drill B57 Track Rig. DATE COMPLETED: 3/1/2023 <br />SAMPLING METHOD: SPT w/ Autohammer LOGGED BY: V. Oskierko <br />LOCATION: See Figure 2. <br />5 <br />1 10 <br />1 15 <br />1 20 <br />1 25 <br />DESCRIPTION <br />mz <br />w <br />W <br />Standard Penetration Test <br />W <br />W <br />¢ <br />(140 lb. weight, 30" drop) <br />z <br />c <br />w <br />~ <br />A Blows per foot <br />z <br />O <br />W <br />Z <br />h <br />o=O <br />W <br />can Cn <br />a <br />O <br />O 0 <br />10 20 30 40 <br />50 W <br />= <br />OL <br />Stiff, dark brown, sandy, organic SILT, with roots, moist. <br />(TOPSOIL) <br />CH <br />Medium stiff, grayish brown, sandy, fat CLAY, moist. <br />(FINE-GRAINED ALLUVIUM) <br />CH <br />---------------------- <br />Medium stiff, dark brown, sandy, fat CLAY, moist. <br />Push shelby tube. Refusal after pushing 21". Recovered 21" <br />in tube. <br />Dry Density= 73.2 pcf @ 42.4% MC <br />Organic Content= 3.5% <br />GP <br />Drilling becomes rough. <br />GM <br />Dense, brown, slightly silty, very sandy, poorly graded <br />o <br />GRAVEL, moist. <br />0 <br />Gravel broken by sampler. <br />o <br />Very rough drilling from 10'-12.5' BGS. <br />e <br />(COARSE -GRAINED ALLUVIUM) <br />Becomes very dense, wet. <br />0 <br />°.. <br />SP <br />---------------------- <br />Dense, grayish brown, fine gravelly, poorly graded SAND, wet. <br />Exploration terminated at 16.5-feet below ground surtace <br />(BGS) . Groundwater was encountered at 11.5' BGS. <br />Borehole abandoned with 3/8" bentonite chips. <br />A bulk sample of drill cuttings was taken while drilling from <br />approximately 0'-5' BGS and combined with a bulk sample <br />from BH-4 for particle -size determination, organic content, <br />and CBR testing. <br />S-1 <br />4-7-7 <br />S-2 <br />1-2-3 <br />S-3 <br />1-1-2 <br />S-4 <br />DID <br />AL <br />%F <br />CN <br />S-5 <br />12-14-16 <br />GS <br />V <br />S-6 <br />15-28-25 <br />S-7 <br />5-15-29 <br />NOTE: This log of subsurface conditions applies only at the specified location and on the date indicated <br />and therefore may not necessarily be indicative of other times and/or locations. <br />0 20 40 60 80 100 <br />Water Content (%) <br />Plastic Limit 1-0 Liquid Limit <br />Natural Water Content <br />Kittitas County Transfer Station BORING: <br />"01 <br />BH-3 <br />Geotechnical Investigation UEllensburg, Washington PAGE: 1 of , <br />GEOSCIENCES INC. PROJECT NO.: 2022-188 FIGURE: A-4 <br />BORING-DSM 2022-188.GPJ 5/11/23 <br />