2007-10-31_REVISION - M2006080 (2)

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~ CORE BORING REPORT = Boring No. LHP-12 _ Sheet NO.l oft Project: Loveland Ready Mix Slurry Wall File No. 107027-000 ~ Start: June 24, 2007 ___ Client: Com ass Environmental P Finish: June 24, 2007 ~ Contractor: Dakota Drilling _ Driller: Josh _ Casin ler Sam Barrel Drillin E ui nt and Proc d LH Rep.: S. Harvey g p g q pme e ures Type HSA " S/C NX Rig Make & Model: DIEDRICH D-120 Elevation: na Datum: na Inside Diameter (in.) 4.25 1 3/S, 2 -- Drill Mud: Polymer Location: Sta 40+00 Hammer Weight (Ib.) - - Bit Type: Cuttlng Head N: _ Hammer Fall (in.) - 30 in. - HoisUHammer: Cat-Head Safety Hammer E: - Water Level Data Sample Itlentifcation Notes Date Time Elapsed eoaom Bottom DepM to Time (hr.) of casing of dole water U Undisturbed Sam le R Core 0/24/07 W D - 35. t ft 2.0 ft p - - - - - S Split Spoon 8 Bulk T Thin Wall Tube G Geoprobe °' t =' z ~ a Visual-Manual Identification and Description L E CO ~ Z L~ C. 3 y N~ A m° rn > ~ ~ v z .... n > ~ ° ~ ~ my m (Soil: Density/consistency, color, GROUP NAME. max. particle Size, O ~ W E ~ ~ it ~ = structure, odor, moisture, optional descriptions, geologic interpretation d m rn ~ ° rn Rock: hardness, color, weathering, lithology, texture, joint spacing) ~ N ~ Sandy lean CLAY (CL) Description based on cuttings. s s -FINE ALLUVIUM- D ~: 70 d0 P~ Sand & Gravel _' Description based on cuttings. G -~ -COARSE ALLUVIUM- G D- G D- G D-: 15 -15 O l7-: ~_~: G 1-. D~: .G 0 D- za -zo : G Top of bedrock at 27 ft. zs Very soft, slightly weathered, medium gray, silty, clayey SHALE (BR). Horizontal joints, -zs R-1 22" 4" 2 partly open. slightly rough, slightly irregular, slightly weathered, very close to close joints. NOTES: Soil identification based on visual•manual methods of the USCS as practiced by Lyman Henn, Inc. f BOf1t79 NO. LHP-~ 2 Maximum particle size (MPS) is determined by direct observation within the limitations o the sampler.