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June 24, 2003 -i- 003-2203.7 <br />TABLE OF CONTENTS <br />1.0 INTRODUCTION <br /> 1.1 Project Description ................................................................................. ............................. l <br /> 1.2 Construction Quality Assurance/Quality Control .................................. .............................2 <br /> 1.2.1 CQA Monitoring of EaRhworks .................................................... .............................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 /> 1.6 Certification Boundary ............................................................................ ............................7 <br /> 1.7 Items Not Covered in Phase IVb 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 of Laterals/Inclines/Adits .......................................... .......................... l l <br /> 2.2 Underdrains ............................................................................................. ..........................11 <br /> 2.2.1 Primary Underdrain ........................................................................ ..........................1 l <br /> 2.2.2 Secondary Underdrain .................................................................... ..........................12 <br /> 2.3 Leak Detection System ........................................................................... ..........................12 <br /> 2.4 Site Grading ............................................................................................ ..........................13 <br />• 2.5 Subgrade Preparation .............................................................................. ..........................13 <br /> 2.6 Soil Liner Fill .......................................................................................... ..........................13 <br /> 2.7 Bedding Fil1 ............................................................................................. ..........................14 <br /> 2.8 PSSA Composite Liner System .............................................................. ..........................15 <br /> 2.9 Low Volume Solution Collection System .............................................. ........................... lb <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 Tes[s ......................................................................... <br />4.1.6 Bulk Specific Gravity .................................................................... ...........................26 <br />...........................26 <br /> 4.2 Field Testing and Monitoring ................................................................ ...........................26 <br /> 1:100\ZZ03\Od00\FnICenP5SA0603\0033Z03.0400.0]343Rep.EOa Golder Associates <br />