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BRIERLEY DAILY FIELD REPORT <br /> ASSOCIATES ' <br /> Gea.f g Space Uneeiy,oun0 <br /> Project Hokestra-North Slurry Wall Report No. 4 <br /> Location Firestone, CO Date Monday, April 29, 2013 ' <br /> Client Hall-Irwin Page 1 of 4 <br /> Contractor Hall-Irwin File No. 112206-000 <br /> Weather Sunny Temperature Mild(60°-75°) ' <br /> I. CONTRACTOR'S ACTIVITIES: <br /> Contractor Start Work 7:00 AM , <br /> Contractor Stop Work 6:00 PM <br /> Top of Backfill Sloe at Start 4+80 <br /> Top of Backfill Slope at Stop 5+30 ' <br /> Toe of Backfill Sloe at Start 6+00 <br /> Toe of Backfill Slope at Stop 7+10 <br /> Last Completed Set at Start 6+05-6+40 <br /> Last Completed Set at Stop 6+75--+7+10 <br /> Verified Area of Excavated Material(Alluvium Plus Bedrock) 1,750 sf(Daily) <br /> 17,248 sf(Cumulative) <br /> Excavator Type Komatsu PC 800 ' <br /> Fresh Slurry Made ® Yes ❑ No <br /> H. FIELD REPRESENTATIVE'S ACTIVITIES: _T <br /> Quality Location or Batch# Results Comments <br /> Control <br /> Slurry Introduced into Trench ' <br /> Unit Weight 6+55, 6+55 64, 64.5 pcf Notified Ruben see note 7 <br /> Viscosity 6+55, 6+55 36, 39 seconds , <br /> Filtrate 6+55 15.0 cc@100psi for 30mins <br /> Slurry In Trench ' <br /> Unit Weight 7+00 82 pcf PM testing only see note 8 <br /> Viscosity 7+00 46 seconds <br /> Sand Content 7+00@ 25' deep 16 % 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 10+00 <br />