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Cripple Creek & Victor Gold Mining Company <br />Cresson Project <br />Quality Assurance Monitoring and Test Results <br />Phase 413/C Triangle Liner Certification <br />August 10, 2010 <br />Table of Contents <br />ameO <br />Listof Tables ................................................................................... ............................... ............................iii <br />Listof Figures ................................................................................................................ .............................iu <br />Listof Appendices .......................................................................... ............................... ............................iii <br />1.0 INTRODUCTION ....................................................................................................... ..............................1 <br />1.1 Project Description ....................................................................................... <br />..............................1 <br />1.2 Construction Quality Assurance /Quality Control .......................................... <br />..............................1 <br />1.2.1 CQA Monitoring of Earthworks ..................................................... <br />..............................1 <br />1.3 Project Coordination ..................................................................................... <br />..............................3 <br />1.3.1 Daily Construction Summary Reports .......................................... <br />..............................3 <br />1.3.2 Weekly Construction Summary Reports ...................................... <br />..............................3 <br />1.3.3 Project Specifications ................................................................... <br />..............................3 <br />1.4 Certification Boundary .................................................................................. <br />..............................4 <br />2.0 SUMMARY OF EARTHWORK CONSTRUCTION ................................................... ..............................5 <br />2.1 Subgrade Preparation .................................................................................. <br />..............................5 <br />2.2 Soil Liner Fill ................................................................................................. <br />..............................5 <br />2.3 Geomembrane Liner .................................................................................... <br />..............................6 <br />2.4 Drain Cover Fill ............................................................................................. <br />..............................7 <br />3.0 GEOSYNTHETICS INSTALLATION ........................................................................ ..............................8 <br />4.0 EARTHWORK CQA TESTING AND MONITORING ................................................ ..............................9 <br />4.1 Results of Laboratory Soils Testing ............................................................. <br />..............................9 <br />4.1.1 Grain Size Distribution ................................................................. <br />.............................10 <br />4.1.2 Moisture Content ......................................................................... <br />.............................10 <br />4.1.3 Atterberg Limits ........................................................................... <br />.............................10 <br />4.1.4 Proctor Compaction Tests ........................................................... <br />.............................10 <br />4.1.5 Permeability Tests ....................................................................... <br />.............................11 <br />4.2 Field Testing and Monitoring ....................................................................... <br />.............................11 <br />4.2.1 Subgrade Preparation ................................................................. <br />.............................11 <br />4.2.2 Site Grading ................................................................................ <br />.............................11 <br />4.2.3 Soil Liner Fill ................................................................................ <br />.............................11 <br />4.2.3.1 Field Monitoring ........................................................... <br />.............................11 <br />4.2.3.2 Moisture - Density Test Results .................................... <br />.............................12 <br />4.2.3.3 Depth Verification ........................................................ <br />.............................12 <br />4.2.4 Drain Cover Fill ............................................................................ <br />.............................12 <br />4.2.5 Temperature Monitoring .............................................................. <br />.............................12 <br />S \PROJECTS\1125E CCV CQA \H2 - DESIGN\TRIANGLE\FINAL \TRIANGLE CERTIFICATION REPORT FINAL REV1 DOC i <br />