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/ Autchammer LOGGED BY: V. Oskierko <br />LOCATION: See Figure 2. <br />5 <br />1 10 <br />1 15 <br />1 20 <br />1 25 <br />w <br />U <br />a <br />m <br />Z <br />H Nc <br />U <br />W <br />Z <br />h- <br />4 <br />F <br />c <br />Iw- <br />w <br />w <br />w�co <br />X <br />0 <br />DESCRIPTION N <br />a <br />o- g <br />O <br />0n <br />OL <br />Medium stiff, dark brown, sandy, organic SILT, moist. <br />= <br />(TOPSOIL) <br />CL <br />Soft, dark grayish brown, lean CLAY, moist, plastic. <br />(FINE-GRAINED ALLUVIUM) <br />CH <br />---------------------- <br />Very soft, fat CLAY, very moist. <br />Becomes sandy. <br />GP <br />Medium dense, brown, slightly silty, sandy, poorly graded <br />° <br />GM <br />GRAVEL, wet. <br />0 <br />DQ <br />Rough drilling from 10'-12.5' BGS. <br />o <br />(COARSE -GRAINED ALLUVIUM) <br />No recovery. <br />° <br />Rough drilling form 12.6-15' BGS. <br />O <br />Dense, grayish brown, slightly silty, poorly graded SAND, wet. <br />SP <br />SM <br />Exploration terminated at 16.5-feet below ground surface <br />(BGS) . Groundwater was encountered at 9.5' BGS. Borehole <br />abandoned with 3/8" bentonite chips. <br />A bulk sample of drill cuttings was taken while drilling from <br />approximately 0'-6 BGS and combined with a bulk sample <br />from BH-3 for particle -size determination, organic content, <br />and CBR testing. <br />S-1 <br />2-3-2 <br />S-2 <br />0-0-2 <br />S-3 <br />0-0-0 <br />S-4 <br />0-0-1 <br />V <br />S-5 <br />3-7-12 GS <br />S-6 <br />18-17-10 <br />S-7 <br />9-22-22 <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 />Z <br />♦ Blows per foot O <br />1n 2n 3n 4n 5n w m <br />I <br />u <br />♦... <br />0 20 40 60 80 100 <br />Water Content (%) <br />Plastic Limit i 40 Liquid Limit <br />Natural Water Content <br />BORING: <br />Kittitas County Transfer Station BH-4 <br />M Geotechnical Investigation <br />Ellensburg, Washington PAGE: 1 of 1 <br />GEOSCIENCES INC. PROJECT NO.: 2022-188 FIGURE: A-5 <br />BORING-DSM 2022-188.GPJ 5111/23 <br />