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BRIERLEY DAILY FIELD REPORT ' <br /> ASSOCIATES <br /> I CrectuV Space Undeigcoun0 <br /> Project Hokestra-North Slurry Wall Report No. 5 <br /> Location Firestone, CO Date Tuesday, April 30, 2013 ' <br /> Client Hall-Irwin Page 1 of 4 <br /> Contractor Hall-Irwin File No. 112206-000 <br /> Weather Partly Sunny/Cloudy Temperature Cool(45°-60°) ' <br /> I. CONTRACTOR'S ACTIVITIES: <br /> Contractor Start Work 7:00 AM <br /> Contractor Stop Work 6:00 PM <br /> Top of Backfill Slope at Start 5+30 <br /> Top of Backfill Slope at Stop 7+30 ' <br /> Toe of Backfill Sloe at Start 7+10 <br /> Toe of Backfill Sloe at Stop 8+50 <br /> Last Completed Set at Start 6+75-->7+10 ' <br /> Last Completed Set at Stop 8+50-8+85 <br /> Verified Area of Excavated Material(Alluvium Plus Bedrock) 4,200 sf(Daily) <br /> 21,448 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 T <br /> Slurry Introduced into Trench ' <br /> Unit Weight 8+10 65 pcf <br /> Viscosity 8+10 44 seconds ' <br /> Filtrate 8+10 13.5 cc@100psi for 30mins <br /> Slurry In Trench ' <br /> Unit Weight 7+40, 8+45 84, 84 pcf <br /> Viscosity 7+40, 8+45 49, 51 seconds ' <br /> Sand Content 7+40@ 25' deep 20 % by volume <br /> Supplemental Fines (one per 500 lineal feet) ' <br /> -200 Wash Next sample to be taken at station <br /> Atterberg ' <br /> 10+00 <br /> Limits <br />