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DRILLING COMPANY: Holt Services, lnc. <br />DRILLING METHOD: Hollow Stem Auger, Mobile Drill B57 Track Rig. <br />SAMPLING METHOD: SPT w/ Autohammer <br />LOCATION: See Figure 2. <br />DATESTARTED: 31112023 <br />DATE COMPLETED: 31 1 12023 <br />LOGGED BY: V. Oskierko <br />aaIo <br />J <br />6aaoa <br />tr <br />UJ <br />uqlz <br />-t9o- lL <br />oo <br />f,l s-r <br />N <br />uJoz^gE <br />baa.g <br />Hgt> <br />F3 <br />4-7-7 <br />aFa <br />uJFt <br />uJIFo <br />Standard Penetration Test <br />('140 lb. weight, 30" drop) <br />A Blows per foot <br />z <br />tr <br />>- <br />IJJ ittJO <br />l!I <br />IF(r <br />tuo <br />0 <br />oo <br />Jo(D <br />o DESCRIPTION 0 10 20 30 40 50 <br />m <br />m <br />I <br />m <br />m <br />m <br />s-2 1-2-3 <br />C s-3 1-1-2 <br />S4 DD <br />AL <br />%F <br />CN <br />10 s-5 12-14-16 GS <br />V <br />s-6 15-28-25 <br />15 s-7 5-'l$29 <br />Exploration terminated at 16.$feet below ground surface <br />(BGS) . Groundwater was encountered at 1 1.5' BGS, <br />Borehole abandoned with 3/8" bentonite chips. <br />20 <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 />25 0 20 40 60 80 <br />Water Content (%) <br />PlasticLimit |---ff Liquidlimit <br />Natural Water Content <br />100 <br />NOTE: This log of subsurface conditions applies only at the specilied location and on the date indicated <br />and th6refore may not necessarily be indicative of other times and/or locations. <br />OL Stiff, dark brown, sandy, organic SILT, with roots, moist. <br />(roPsorL) <br />CH Medium stiff, grayish brown, sandy, fat CLAY, moist. <br />(FINE.GRAINED ALLUVIUM) <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= 73.2pd @42j%MC <br />Organic Content= 3.5% <br />CH <br />GP <br />GM <br />Drilling bemmes rough. <br />Dense, brown, slightly silty, very sandy, poorly graded <br />GMVEL, moist. <br />Gravel broken by sampler. <br />Very rough drilling from 10'-12.5 BGS. <br />(COARSE.GRAINED ALLUVIUM) <br />Becrmes very dense, wet. <br />Dense, gralsh brown, fine gravelly, poorly graded SAND, wet.SP <br />Kittitas County Transfer Station <br />Geotechnical I nvestigation <br />Ellensburg, Washington <br />GEOSCIENCES INC pRoJEcr No.: 2022-188 FTGURE: A-4 <br />BORTNG-DSM 2022-1 88.GP J 51 1 1 123 <br />llm BORING <br />BH.3 <br />PAGE: 1 of 1