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1 <br /> BRIERLEY DAILY FIELD REPORT ' <br /> ASSOCIATES <br /> Crec6ng;pace Unceryround <br /> Project Hokestra-North Slurry Wall Report No. 7 ' <br /> Location Firestone, CO Date Thursday, May 02, 2013 <br /> Client Hall-Irwin Page 1 of 4 <br /> Contractor Hall-Irwin File No. 112206-000 <br /> Weather Sunny Temperature Cold(32°-45°) ' <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 9+20 <br /> Top of Backfill Slope at Stop 11+20 , <br /> Toe of Backfill Slope at Start 10+20 <br /> Toe of Backfill Sloe at Stop 12+30 <br /> Last Completed Set at Start 10+25-10+60 , <br /> Last Completed Set at Stop 12+35-12+70 <br /> Verified Area of Excavated Material(Alluvium Plus Bedrock) 4,795 sf(Daily) <br /> 30,128 sf(Cumulative) <br /> Excavator Type Komatsu PC 800 <br /> Fresh Slurry Made ® Yes ❑ No <br /> 11. FIELD REPRESENTATIVE'S ACTIVITIES: <br /> Control <br /> Quality Location or Batch # Results Comments <br /> 'Slurry Introduced into Trench <br /> Unit Weight 10+85 65 pcf <br /> Viscosity 10+85 42 seconds ' <br /> Filtrate 10+85 11.8 cc@100psi for 30mins <br /> Slurry In Trench , <br /> Unit Weight 11+25, 11+95 87, 89 pcf Notified Ruben see note 5 <br /> Viscosity 11+25, 11+95 55, 59 seconds t <br /> Sand Content 11+25@23' deep >20% by volume Notified Ruben see note 5 ' <br /> 11+95@23' 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 /> Limits 15+00 <br />