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DRILLING COMPANY: Holt Services, Inc. DATE STARTED: 2/28/2023 <br />DRILLING METHOD: Hollow Stem Auger, Mobile Drill B57 Track Rig. DATE COMPLETED: 2128/2023 <br />SAMPLING METHOD: SPT w/ Autohammer LOGGED BY: V. Oskierko <br />LOCATION: See Figure 2. <br />e <br />1 10 <br />1 15 <br />1 20 <br />1 25 <br />DESCRIPTION <br />m <br />w <br />0 <br />z <br />of <br />Standard Penetration Test <br />a <br />L <br />w <br />¢ <br />(140 lb. weight, 30" drop) <br />z <br />c <br />H <br />o <br />♦ Blows per foot <br />z <br />O <br />w w <br />w <br />N <br />z <br />D <br />d a- <br />z o <br />W <br />x <br />O <br />w <br />m � <br />° a ' <br />O <br />U 0 <br />10 20 30 40 <br />50 w <br />SM <br />Loose, yellowish brown, silty SAND with roots and organic <br />material, moist. <br />(TOPSOIL) <br />ML <br />Medium stiff, olive gray, very sandy, SILT, moist. Contains <br />scattered roots. <br />(FINE-GRAINED ALLUVIUM) <br />SM <br />Loose, olive gray, very silty, SAND, moist. <br />(COARSE -GRAINED ALLUVIUM) <br />Only recovered 1 coarse gravel in tip of sampler. <br />Dense, olive gray, silty fine to medium SAND, wet. Poor <br />SM <br />recovery. <br />Rough drilling from 10'-12.5' BGS. <br />Very dense, grayish brown, fine gravelly, poorly graded <br />SP <br />SAND, wet. <br />Very dense, grayish brown, slightly silty, fine to coarse <br />SP <br />SM <br />gravelly, poorly graded SAND, wet. <br />Exploration terminated at 17-feet below ground surface (BGS) <br />due to auger refusal. Groundwater was encountered at 10' <br />BGS. Borehole abandoned with 3/8" bentonite chips. <br />A bulk sample of drill cuttings was taken while drilling from <br />approximately U-5 BGS and combined with the bulk sample <br />obtained from BH-6 for particle -size determination, organic <br />content, and CBR testing. <br />S-1 3-3-3 <br />S-2 2-3-3 <br />S-3 2-2-7 GS <br />S-4 3-3-1 <br />Sz <br />S-5 5-8-13 <br />S-6 14-38-50/4" <br />S-7 25-38-50/4" <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 i 0 Liquid Limit <br />Natural Water Content <br />BORING: <br />Kittitas County Transfer Station BH-1 <br />Geotechnical Investigation UEllensburg, Washington PAGE: 1 of 1 <br />GEOSCIENCES INC. PROJECT NO.: 2022-188 FIGURF A-2 <br />BORING-DSM 2022-188.GPJ 5/11/23 <br />