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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 />J <br />J O <br />o ° V) D <br />0 <br />5 <br />1 16 <br />1 15 <br />I 20 <br />1 25 <br />DESCRIPTION <br />W <br />U <br />m <br />Z - <br />W <br />Z <br />U) Cuj <br />W <br />z <br />D <br />Q <br />0 <br />(n <br />d <br />O 0 <br />OL <br />Medium stiff, dark brown, sandy, organic SILT, with roots, <br />= <br />moist. <br />(TOPSOIL) <br />ML <br />Soft to medium stiff, very dark brown, SILT, very moist. <br />(FINE-GRAINED ALLUVIUM) <br />Becomes sandy. <br />---------------------- <br />Soft, dark brown, sandy, fat CLAY, moist, plastic. <br />CH <br />Push shelby tube 24". Recovered 24" in tube. <br />Dry Density-- 80.0 pcf @ 38.4% MC <br />Organic Content= 3.5% <br />CH <br />---------------------- <br />Very soft, dark brown, fat CLAY, very moist. <br />Drilling becomes rough. <br />GP <br />Very dense, brown, slightly silty, poorly graded GRAVEL, wet. <br />° <br />GM <br />Gravel broken by sampler. <br />0 <br />° <br />(COARSE -GRAINED ALLUVIUM) <br />--------ra------------- <br />Very dense, brownish gray, poorly graded GRAVEL, wet. <br />GP <br />DO <br />o3 <br />o <br />Becomes sandy. <br />Exploration terminated at 15.75-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 and combined with a bulk sample <br />from BH-8 for particle -size determination, organic content, <br />and CBR testing. <br />S-1 2-2-3 <br />S-2 1-3-2 <br />S-3 <br />DD <br />AL <br />%F <br />CN <br />S-4 0-0-0 <br />S-5 15-38-50/6" <br />S-6 9-14-37 <br />S-7 40-50/3" <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 />Standard Penetration Test <br />(140 lb. weight, 30" drop) <br />♦ Blows per foot <br />0 <br />10 <br />20 <br />30 <br />40 <br />W <br />>>. <br />0 20 40 60 80 100 <br />Water Content (%) <br />Plastic Limit �� Liquid Limit <br />Natural Water Content <br />Z <br />OLU <br />w <br />BORING: <br />It" Kittitas County Transfer Station BH-5 <br />Geotechnical Investigation <br />Ual Ellensburg, Washington PAGE: 1 of 1 <br />GEOSCIENCES INC. PROJECT NO.: 2022-1 8$ FIGURE: A-6 <br />BORING-DSM 2022-188.GPJ 5/11/23 <br />