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DAILY FIELD REPORT <br />Project Loveland Ready Mix Slurry Wall Report No. 24 <br />Location Larimer County, Colorado Date 9 April 2008 <br />Client Compass Environmental, Inc. Page 1 of 2 <br />Contractor Compass Environmental, Inc. File No. 107021-001 <br />Weather Partly Cloudy/ Sunny-Wind/Rain PM Temperature 50's F <br />1. CONTRACTOR'S ACTIVITIES: <br />Contractor Start Work 0700 hrs <br />Contractor Stop Work 1800 hrs <br />Top of Backfill Slope at Start 36+90 ?- -_ - - <br />- <br />To of Backfill Slope at Stop 37+70 <br />Toe of Backfill Slope at Start 39+10 <br />Toe of Backfill Slope at Stop 39+80 <br />Last Completed Set at Start 39+90 <br />Last Completed Set at Stop 40+20 <br />Verified Area of Excavated Alluvium and Bedrock (Daily) 1050?CS . Ft.__^ <br />Total Area Excavated To Date <br />Ft. <br />38,560 S q. <br />Excavator Type Komatsu PC800 <br />Fresh Slurry Made Yes <br />FIELD REPRESENTATIVE'S ACTIVITIES: <br />Quality Control Number of Location or Batch # Comments <br /> Samples <br />Bentonite Slurry - As-Mixed 1 37+40 Passing viscosity test attained prior to <br /> excavation activities. <br />Bentonite Slurry - In Trench 1 39+90 No PM excavation activities after completion <br /> of cross cut at 40+00. No PM trench slurry <br /> test. <br />Backfill (Slump, Density) 2 37+00,37+20 <br />Backfill (Gradation) 1 36+50 <br />Backfill (Permeability) -- -- Next Permeability will be taken around 40+00 <br />Verified Clean AM Backfill Yes 39+60 through 39+90 Trench cleaned to bottom of key prior to next <br />Slope and Bottom of Key excavation set. <br />Verified Depth To Bedrock Yes 39+90 to 40+20 <br />and Key <br />1. GS tested fresh slurry and trench slurry prior to excavation of cross cut at STA 40+00. Fresh slurry showed passing <br />improvement in accordance with specifications. <br />2. 1300 hrs, excavation operations halted after 2°d cut of cross cut at 40+20 due to inclimate weather approaching. Other <br />operations except backfilling operations halted at this time in preparation for cold weather. Cross cut turn at STA 40+00 <br />met minimum 10 lead out as detailed in the Lyman Henn, Inc. Construction Report. <br />3. 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 Compass. <br />Prepared Daily Field Report and updated slurry wall data spreadsheet. <br />ATTACHMENTS: None <br />Field Representative(s) <br />Greg Snyder <br />Time on/off site <br />0700/1600 <br />Total <br />9 <br />Distribution: Jeff Sallas; file