2008-10-08_REVISION - M2006080 (7)

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DAILY FIELD REPORT Project Loveland Ready Mix Slurry Wall Location Larimer County, Colorado Client Compass Environmental, Inc. Contractor Compass Environmental, Inc. Weather Partly Cloudy and windy 1. CONTRACTOR'S ACTIVITIES: Report No. 38 Date 25 April 2008 Page 1 of 1 File No. 107021-001 Temperature 40's - 60's F Contractor Start Work 0700 hrs Contractor Stop Work 1800 hrs Top of Backfill Slope at Start 53+40 To of Backfill Sloe at Stop 54+50 Toe of Backfill Sloe at Start 55+10 Toe of Backfill Slope at Stop _ 56+50 Last Completed Set at Start 56+30 Last Completed Set at Stop 56+90 Verified Area of Excavated Alluvium and Bedrock (Dail) 1,680 Sq. Ft. Total Area Excavated To Date S . Ft. 88,452 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 56+60 Met Spec Bentonite Slurry - In Trench 2 56+80,56+90 Met Spec, Sand Content of 18%, 17% Backfill (Slump, Density) 2 53+70, 54+00 Met Spec Backfill (Gradation) 1 53+70 49% 4200 Backfill (Permeability) -- -- Next permeability sample to be taken around STA 60+00. Verified Clean AM Backfill Slope and Bottom of Key Yes 53+50 through 55+90 Trench cleaned to bottom of key prior to next excavation set. Verified Depth To Bedrock and Key Yes 56+40 through 56+90 Flat bottom (27-28ft) 1. Performed quality control testing on slurry and backfill. Observed backfill and excavation operations. Other tests performed yielded results in general accordance with project specifications. Test results were reported to Al of Compass. Prepared Daily Field Report and updated slurry wall data spreadsheet. ATTACHMENTS: None Field Representative(s) Time on/off site Total Benny Siljenberg 0700/1745 12.5 Distribution: Jeff Salsas; file C:\107021-001 Ready Mix\107021-000 Loveland Ready Mix Slurry Wall\C. Lyman Henn Inc. Construction\C.4 Field Reports\Daily Reports\DFR's\DFR 080425.doc