2008-10-08_REVISION - M2006080 (7)

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DAILY FIELD REPORT Project Loveland Ready Mix Slurry Wall Report No. 4 Location Larimer County, Colorado Date 20 Dec 2007 Client Compass Environmental, Inc. Page 1 of 1 Contractor Compass Environmental, Inc. File No. 107021-001 Weather Clear Temperature 30's - 40's F 1. CONTRACTOR'S ACTIVITIES: Contractor Start Work 0700 hrs Contractor Stop Work 1630 Hrs Top of Backfill Slope at Start NA To of Backfill Slope at Stop NA Toe of Backfill Slope at Start _. _ Toe of Backfill Slope at Stop 31+40 32+00 Last Completed Set at Start _.._....._....._......_.._..._..._._.._._..........._. _ ._._ ...... _. _. . __... Last Completed Set at Stop 31+40 - - -.- -- 32+00 Verified Area of Excavated Material (Cumulative Alluvium Plus Fractured Bedrock 7740 Sq. Ft. Excavator Type Komatsu PC800 Fresh Slurry Made Yes FIELD REPRESENTATIVE'S ACTIVITIES: Quality Control Number of Samples Location or Batch # Comments Bentonite Slurry - As-Mixed 1 31+80 Bentonite Slurry - In Trench 2 31+80, 32+20 Backfill (Slump, Density) 2 30+00 Backfill Gradation 1 30+00 Backfill (Permeability) -- -- Verified Clean AM Backfill Slope and Bottom of Key Yes Yes Verified Depth To Bedrock and Key -- 31+40 thru 32+00 1. Observed slurry trenching activities. Verified depth to top of bedrock and depth of key from Sta 31+40 to 32+00. 2. Performed quality control testing. Tests performed yielded results in.general accordance with project specifications. Test results were reported to contractor. 3. Prepared Daily Field Report and updated slurry wall data spreadsheet. ATTACHMENTS: None Field Representative(s) Time on site Total Benny Siljenberg 0700 11 Distribution: Jeff Sallas; file G:\PROJECTS\107021-000 Loveland Ready Mix Slurry Wall\C. Lyman Henn Inc. Construction\C.4 Field Reports\Daily Reports\DFR 071220.doc