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' BRIERLEY DAILY FIELD REPORT <br /> ASSOCIATES <br /> Crectog ipoce Underground <br /> Project Hokestra-North Slurry Wall Report No. 3 <br /> ' Location Firestone, CO Date Friday, April 26, 2013 <br /> Client Hall-Irwin Page 2 of 4 <br /> Contractor Hall-Irwin File No. 112206-000 <br /> ' Weather Sunny Temperature Cool(45°-60°) <br /> Quality F�t <br /> n or Batch# Results Comments <br /> ' Control F I <br /> Soil-Bentonite Backfill <br /> Unit Weight 2+05, 3+70 116.0, 121.0 pcf <br /> ' Slump 2+05, 3+70 6.00, 3.25 inches <br /> -200 Wash 2+05 48.1 % passing No. 200 <br /> ' Triaxial <br /> Next sample to be taken at station <br /> Permeability <br /> T 15+00 <br /> Test <br /> Cement Stabilized Soil-Bentonite Backfill(when applicable) <br /> Unit Weight XX pcf N/A <br /> Slump XX inches N/A <br /> ' Gradation XX% passing No. 200 N/A <br /> Verified Depth <br /> Verified ® Yes <br /> Clean AM ❑ No <br /> Backfill <br /> Slope and <br /> ' Bottom of <br /> Key <br /> ® Yes 3+25-->3+60,3+60-3+95, 4ft key(23 ft total depth),4ft key <br /> ❑ No 3+95--4+30,4+30--*4+65,, (23 ft total depth),4ft key(25 ft <br /> Verified 4+65—*5+00,5+00--�5+35, total depth),4ft key(24 ft total <br /> Depth To 5+35--*5+70,5+70-6+05, depth), 4ft key(24 ft total depth), <br /> Bedrock and 6+05—>6+40 4ft key(22 ft total depth),4ft key <br /> ' Key (24 ft total depth), 4ft key(24 ft <br /> total depth),4ft key(24 ft total <br /> depth), <br /> Top:3:30 PM,9:21 AM, 10:37 AM, <br /> ' Bedrock Samples 11:33 AM, 1:13 PM,2:20 PM,3:15 <br /> Frequency = Once per 10OLF of 4+65, 5+70 PM,4:19 PM,5:30 PM <br /> slurry wall Bottom: 8:15 AM, 10:00 AM, 11:02 <br /> AM, 12:47 PM, 1:47 PM,2:50 PM, <br /> ' 3:41 PM,4:54 PM,6:30 PM <br /> Average Excavation Time of Bedrock 0.68 Hrs <br /> per Set <br /> ' III. NOTES: <br />