2007-10-31_REVISION - M2006080 (2)

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_ ~ CORE BORING REPORT Boring No. LHP-11 _ Sheet No.l oft Project: Loveland Ready Mix Slurry Wall File No. 107021-000 Start: June 23, 2007 _ Client: Com ass Environmental P Finish: June 23, 2007 _ ~ Contractor: Dakota Drilling Driller: Josh _ _ Casin Sam ler Barrel Drillin E ui ment and Procedures LH Rep.: S. Harvey g p g q p Type HSA " S/C NX Rig Make 8 Model: DIEDRICH D-120 Elevation: na Datum: na Inside Diameter (in.) 4.25 1 3/8, 2 Drill Mud: Polymer Location: Sta 48+00 Hammer Weight (IbJ - - Bit Type: Cutting Head N: _ Hammer Fall (in.) - 30 in. - HoisVHammer: Cat-Head Safety Hammer E: - Water Level Data Sample Identifcaton Notes Date Time Elapsed eonom aottom Depth to Tme (hr.) of Casing of Hole Water U Undisturbed Sam le R Core 8123/07 WD - - 39 ft 8 k p - - - - - - S Split Spoon B Bulk T Thin Wall Tube G Geoprobe a a o s _ io r ? ;T Visual-Manual Identification and Description L r E g ~~ Z Z ~ 3 ~ u ~~ m v rn > m '~ n > ~ ° A O1m (Soil: Density/consistency, color, GROUP NAME, max. particle size. ~ W E m '°' ~ o c '° ~ sVucture, odor, moisture, optional descriptions, geologic interpretation y ' m rA ~ ~ N Rack: hardness, color, wealhenng, litholo9y, texture, joint spacing) 3 m o Brown, sandy lean CLAY (CL), mostly clay, little fine sand, no odor, moist Description based on cuttings. s s -FINE ALLUVIUM- D p Sand & Gravel ~ -: DescripUcn based on cuttings. m -m _ P -~ -COARSE ALLUVIUM- D~: G D-: .G D~: is -IS G 6-. 6~ ~G D ~. D ~: C Q- zo -zo . 0 Driller indicates bedrock at 21 ft. R-1 7~' 20" 2.3 Very soft, slightly weathered, gray, silty, clayey SHALE (BR). Very close, horizontal joints, zs -25 (63 % (1T~°) tight to partly open, slightly rough, irregular, slightly weathered. NOTES: Soil identification based on visual-manual methods ofi the USCS as practiced by Lyman Henn, Inc. BOr'Irlg NO. LHP-11 Maximum particle size (MPS) is determined by direct observation within the limitations of the sampler.