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BRIERLEY DAILY FIELD REPORT ' <br /> ASSOCIATES <br /> Crecting 5poce Uneergroun0 <br /> Project Hokestra-North Slurry Wall Report No. 6 <br /> Location Firestone, CO Date Wednesday, May 01, 2013 , <br /> Client Hall-Irwin Page 1 of 4 <br /> Contractor Hall-Irwin File No. 112206-000 <br /> Weather Windy with Snow Showers Temperature Very Cold(0°-32°) ' <br /> I. CONTRACTOR'S ACTIVITIES: <br /> Contractor Start Work 7:00 AM ' <br /> Contractor Stop Work 7:00 PM <br /> Top of Backfill Slope at Start 7+30 <br /> Top of Backfill Slope at Stop 9+20 ' <br /> Toe of Backfill Sloe at Start 8+50 <br /> Toe of Backfill Sloe at Stop 10+20 <br /> Last Completed Set at Start 8+50—>8+85 ' <br /> Last Completed Set at Stop 10+25--+10+60 <br /> Verified Area of Excavated Material(Alluvium Plus Bedrock) 3,885 sf(Daily) <br /> 25,333 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 <br /> Unit Weight 9+60 65 pcf <br /> Viscosity 9+60 48 seconds ' <br /> Filtrate 9+60 12.0 cc0100psi for 30mins <br /> Slurry In Trench <br /> Unit Weight 9+80, 10+20 85,87 pcf <br /> Viscosity 9+80, 10+20 ' <br /> 51, 55 seconds <br /> Sand Content 9+80@21' deep 20% by volume ' <br /> Supplemental Fines (one per 500 lineal feet) <br /> -200 Wash 46.0 Passing No. 200 Next sample to be taken at station ' <br /> Atterberg 10+00 Plasticity Verified 15+00 <br /> Limits <br /> 1 <br />