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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 />mz <br />w <br />w <br />Standard Penetration Test <br />} <br />2 <br />r <br />¢ <br />(140 lb. weight, 30" drop) <br />E <br />Z <br />H <br />z <br />♦ Blows per foot <br />z <br />O <br />w <br />w <br />w <br />w <br />F- <br />a <br />CL <br />Z) <br />j _ <br />DESCRIPTION vi <br />U) <br />oWz <br />a a <br />O <br />0 <br />0 <br />10 20 30 40 <br />w <br />50 <br />OL <br />Medium stiff, dark brown, organic SILT, with roots, moist. <br />_ <br />No recovery. Description based on drill cuttings. <br />(TOPSOIL) <br />CL <br />Medium stiff to soft, dark brown, very sandy, lean CLAY, very <br />moist. <br />(FINE-GRAINED ALLUVIUM) <br />No recovery. <br />----------------------- <br />Very dark brown, sandy, lean CLAY, moist. Push shelby tube. <br />CL <br />Refusal after pushing 18". Recovered 18" in tube. <br />Dry Density= 88.5 pcf @ 31.6% MC. <br />Sp <br />Organic Content = 2.8% <br />Drilling becomes rough. <br />SM <br />Very dense, brown, slightly silty, gravelly, poorly graded <br />SAND, moist. <br />Gravel broken by sampler. <br />(COARSE -GRAINED ALLUVIUM) <br />I Rough drilling from 7.5'-10' BGS. _ _ _ _ _ _ _ _ _ _ <br />Sp <br />SM <br />Very dense, brown, slightly silty, very gravelly, poorly graded <br />SAND. <br />Dense, bluish gray, fine gravelly, silty SAND, wet. <br />SM <br />Very dense, bluish gray, very gravelly, silty SAND, wet. <br />SM <br />Very rough drilling from 16-18' BGS. <br />No recovery. Sampler came up wet. <br />Exploration terminated at 21.25-feet below ground surface <br />(BGS). Groundwater was encountered at 9' BGS. Borehole <br />abandoned with 3/8" bentonite chips. <br />A bulk sample of drill cuttings was taken while drilling from <br />approximately 0'-5 BGS. <br />25 <br />s-1 <br />T <br />1 <br />z-z-2 <br />S-2 <br />1-1-2 <br />S-3 <br />D <br />AL L <br />%F <br />S-4 <br />11-36-24 <br />Q <br />S-5 <br />7-25-38 <br />S-6 <br />6-19-30 <br />S-7 <br />10-45-45 <br />GS <br />S-8 28-35-50/3" <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 />L <br />» <br />>>. <br />0 20 40 60 80 100 <br />Water Content (%) <br />Plastic Limit I-- *0 j Liquid Limit <br />Natural Water Content <br />"01 BORING: <br />Kittitas County Transfer Station BH-2 <br />Geotechnical Investigation UEllensburg, Washington PAGE: 1 of 1 <br />GEOSCIENCES INC. PROJECT NO.: 2022-188 FIG LJRF- A-3 <br />BORING-DSM 2022-188.GPJ 5/11/23 <br />