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DAILY FIELD REPORT <br />Project Loveland Ready Mix Slurry Wall Report No. <br />Location Larimer County, Colorado Date <br />Client Compass Environmental, Inc. Page <br />Contractor Compass Environmental, Inc. File No. <br />Weather Cloudy Temperature <br />1. CONTRACTOR'S ACTIVITIES: <br />36 <br />23 April 2008 <br />l of 1 <br />107021-001 <br />40's - 70's F <br />Contractor Start Work 0700 hrs <br />Contractor Stop Work 1800 hrs <br />Top of Backfill Slope at Start 50+40 <br />y <br />To of Backfill Slope at Stop 52+20 <br />Toe of Backfill Sloe at Start 52+40 <br />Toe of Backfill Slope at Stop 54+00 <br />Last Completed Set at Start 53+00 <br />? _ <br />Last Completed Set at Stop 54+80 <br />Verified Area of Excavated Alluvium and Bedrock (Dail) 5,090 Sq. Ft. <br />Total Area Excavated To Date 82,485 S q. Ft. <br />Excavator Type Komatsu PC800 <br />Fresh Slurry Made Yes <br />FIELD REPRESENTATIVE'S ACTIVITIES: <br />Quality Control Number of <br />Samples Location or Batch # Comments <br />Bentonite Slurry - As-Mixed 1 53+20 Met Spec <br />Bentonite Slurry - In Trench 2 53+20,54+20 Met Spec, Sand Content of 20%, 19% <br />Backfill (Slump, Density) 2 50+80,52+30 Met Spec <br />Backfill (Gradation) 1 50+80 44% 4200 <br />Backfill (Permeability) 1 50+80 Next permeability sample to be taken around <br />STA 60+00. <br />Verified Clean AM Backfill <br />Sloe and Bottom of Key Yes 50+60 through 52+40 Trench cleaned to bottom of key prior to next <br />excavation set. <br />Verified Depth To Bedrock <br />and Key Yes 53+10 through 54+80 Flat bottom (28-29ft) <br />1. Performed quality control testing on slurry and backfill. Observed backfill and excavation operations. Other tests <br />performed yielded results in general accordance with project specifications. Test results were reported to Al of <br />Compass. Prepared Daily Field Report and updated slurry wall data spreadsheet. <br />2. Obtained a sample of the backfill material at station 50+80 to determine the permeability. <br />ATTACHMENTS: None <br />Field Representative(s) Time on/off site Total <br />Benny Siljenberg 0700/1745 12.5 <br />Distribution: Jeff Sallas; file <br />C:\107021-001 Ready Mix\107021-000 Loveland Ready Mix Slurry Wall\C. Lyman Henn Inc. <br />Construction\C.4 Field Reports\Daily Reports\DFR's\DFR 080423.doc