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June 24.2003 -i- 003-2203.7 <br />• TABLE OF CONTENTS <br /> 1.0 INTRODUCTION .............................................................................. ................................1 <br /> 1.1 Project Description ............................................................................ .................................. l <br /> 1.2 Construction Quality Assurance/Quality Control ............................. ..................................2 <br /> 1.2.1 CQA Monitoring of Earthworks ............................................... ..................................2 <br /> 1.2.2 CQA/CQC Monitoring of Geosynthetics Installation ............... ..................................4 <br /> 1.3 Project Coordination ......................................................................... ..................................4 <br /> 1.3.1 Daily Construction Summary Reports ....................................... .................................5 <br /> 1.3.2 Weekly Construction Summary Reports ................................... ................................. 5 <br /> 1.4 Project Specifications ......................................................................... .................................5 <br /> 1.5 Record Survey Documentation .......................................................... .................................6 <br /> l.6 Certification Boundary ...................................................................... ..................................7 <br /> 1.7 Items Not Covered in Phase Nb PSSA Certification Report ........... ..................................7 <br /> 2.0 SUMMARY OF EARTHWORK CONSTRUCTION ..................... ................................8 <br /> 2.1 Underground Workings Remediation ................................................ .................................9 <br /> 2.1.1 Remediation of Shafts, Stopes, and Shallow Surface Pits ......... ...............................10 <br /> 2.1.2 Remediation ofLaterals/Inclroes/Adits ..................................... ...............................11 <br /> 2.2 Underdrains ........................................................................................ ...............................11 <br /> 2.2.1 Primary Underdrain ................................................................... ...............................11 <br /> 2.2.2 Secondary Underdrain ...---° ....................................................... ...............................12 <br /> 2.3 Leak Detection System ...................................................................... ...............................12 <br /> 2.4 <br />2.5 Site Grading ....................................................................................... <br />Subgrade Preparation ......................................................................... ...............................13 <br />...............................13 <br /> 2.6 Soil Liner Fill ..................................................................................... ...............................13 <br /> 2.7 Bedding Fill ........................................................................................ ...............................14 <br /> 2.8 PSSA Composite Liner System ......................................................... ...............................15 <br /> 2.9 Low Volume Solution Collection System .......................................... ...............................16 <br /> 2.10 High Volume Solution Collection System ......................................... ...............................16 <br /> 2.1 1 Select Drain Cover Fill ...................................................................... ...............................18 <br /> 2.12 Drain Cover Fill ................................................................................. ...............................18 <br /> 3.0 GEOSYNTHETICS INSTALLATION ............................................ ..............................19 <br /> 3.1 Underdrains ........................................................................................ ...............................19 <br /> 3.2 Leak Detection Trench ....................................................................... ...............................19 <br /> 3.3 PSSA Liner System ............................................................................ ...............................20 <br /> 3.4 Underground Workings Geogrid ........................................................ ...............................21 <br /> 3.5 High Volume Solution Collection System Riser Foundation ............ ...............................21 <br /> 4.0 EARTHWORK CQA TESTING AND MONITORING ................. ..............................22 <br /> 4.1 Results of Laboratory Soils Testing ................................................... ...............................22 <br /> 4.1.1 Grain Size Distribution .............................................................. ...............................23 <br /> 4.1.2 Moisture Content ....................................................................... ...............................24 <br /> 4.1.3 Atterberg Limits ......................................................................... ...............................25 <br /> 4.1.4 Proctor Compaction Tests .......................................................... ...............................25 <br />• 4.1.5 Permeability Tests ..................................................................... <br />4.1.6 Bulk Specific Gravity ................................................................ ...............................26 <br />...............................26 <br /> 4.2 Field Testing and Monitoring ............................................................ ...............................26 <br /> I:\W\220.1\Oi00\FnlfenPS5A060310WEE03.0100.0]3a3Rep.tloc Golder Associates <br />