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BRIERLEY DAILY FIELD REPORT <br /> ASSOCIATES <br /> C-6n9SpueUn6ft -"d <br /> Project Hokestra-North Slurry Wall Report No. 2 <br /> Location Firestone, CO Date Thursday, April 25, 2013 ' <br /> Client Hall-Irwin Page 1 of 4 <br /> Contractor Hall-Irwin File No. 112206-000 <br /> Weather Sunny Temperature Cool(45°-60°) ' <br /> I. CONTRACTOR'S ACTIVITIES: <br /> Contractor Start Work 7:00 AM ' <br /> Contractor Stop Work 6:30 PM <br /> Top of Backfill Sloe at Start 0+10 <br /> Top of Backfill Slope at Stop 1+70 ' <br /> Toe of Backfill Slope at Start 1+40 <br /> Toe of Backfill Sloe at Stop 2+80 <br /> Last Completed Set at Start 1+40—*1+75 <br /> Last Completed Set at Stop 2+90--3+25 <br /> Verified Area of Excavated Material(Alluvium Plus Bedrock) 3,755 sf(Daily) <br /> 8,043 sf(Cumulative) <br /> Excavator Type Komatsu PC 800 <br /> Fresh Slurry Made ® Yes ❑ No <br /> II. FIELD REPRESENTATIVE'S ACTIVITIES: , <br /> Quality Location or Batch# Results Comments <br /> Control <br /> Slurry Introduced into Trench t <br /> Unit Weight 1+65 64.5 pcf <br /> Viscosity 1+65 40 seconds ' <br /> Filtrate Not tested on this day <br /> Slurry In Trench ' <br /> Unit Weight 2+50, 3+20 82, 83 pcf <br /> Viscosity 2+50, 3+20 ' <br /> 48, 50 seconds <br /> Filtrate Loss Not tested on this day <br /> Sand Content 2+50@ 24' deep 19 % by volume , <br /> 3+20@ 23' deep 19 % by volume <br /> Supplemental Fines (one per 500 lineal feet) <br /> -200 Wash , <br /> Next sample to be taken at station <br /> Atterberg <br /> Limits 5+00 <br />