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As-Built CQA Report for the Construction of Area 2A at the Foothill Sanitary Landfill <br /> San Joaquin County,California <br /> • TABLE OF CONTENTS <br /> 1.0 INTRODUCTION.........................................................................................................................................1 <br /> 1.1 GENERAL...................................................................................................................................... 1 <br /> 1.2 PROJECT DESCRIPTION.............................................................................................................. 1 <br /> 1.3 SCOPE OF CQA SERVICES ...........................................................................................................3 <br /> 1.4 PROJECT DOCUMENTS ...............................................................................................................4 <br /> 1.5 CONSTRUCTION SPECIFICATION AND DESIGN VARIANCES..................................................4 <br /> 1.6 SURVEYING AND PREPARATION OF RECORD DRAWINGS.....................................................7 <br /> 1.7 REPORT ORGANIZATION............................................................................................................8 <br /> 2.0 EXCAVATION AND EARTHFILL PLACEMENT...................................................................................9 <br /> 2.1 GENERAL......................................................................................................................................9 <br /> 2.2 EXCAVATION ...............................................................................................................................9 <br /> 2.3 EARTHFILL..................................................................................................................................9 <br /> 3.0 SOIL GAS COLLECTION PIPE AND LYSIMETERS ...........................................................................11 <br /> 3.1 GENERAL.................................................................................................................................... 11 <br /> 3.2 SOIL GAS COLLECTION PIPE.................................................................................................... 11 <br /> 3.3 PAN LYSIMETER........................................................................................................................ 12 <br /> 4.0 FOUNDATION LAYER CONSTRUCTION............................................................................................14 <br /> • 4.1 FOUNDATION LAYER PREPARATION..................................................................................... 14 <br /> 4.2 CQA OBSERVATIONS AND TESTING OF FOUNDATION LAYER MATERIAL......................... 14 <br /> 5.0 FOUNDATION AND SUBGRADE LAYER PREPARATION FOR GEOSYNTHETICS <br /> INSTALLATION........................................................................................................................................16 <br /> 5.1 GENERAL.................................................................................................................................... 16 <br /> 5.2 FLOOR SUBGRADE (FOUNDATION LAYER) PREPARATION................................................. 16 <br /> 5.3 SIDE SLOPE SUBGRADE PREPARATION ................................................................................. 16 <br /> 6.0 GEOSYNTHETICS CONSTRUCTION....................................................................................................17 <br /> 6.1 GENERAL.................................................................................................................................... 17 <br /> 6.2 MQC DOCUMENTATION ........................................................................................................... 18 <br /> 6.3 GEOSYNTHETICS INVENTORIES.............................................................................................. 18 <br /> 6.4 CONFORMANCE TESTING ........................................................................................................ 18 <br /> 6.4.1 GCL Conformance Testing........................................................................................... 19 <br /> 6.4.2 60-mil DST HDPE Geomembrane Conformance Testing..........................................20 <br /> 6.4.3 8-oz Geotextile Conformance Testing ........................................................................21 <br /> 6.4.4 Drainage Geocomposite Conformance Testing.........................................................21 <br /> 6.4.5 Interface Shear Strength Testing................................................................................22 <br /> 6.5 GEOSYNTHETICS INSTALLATION ...........................................................................................24 <br /> 6.5.1 General..........................................................................................................................24 <br /> • 6.5.2 GCL................................................................................................................................24 <br /> PA14 Projects114-101(SJCDPW North County and Foothiliff oothill CQAIReport\Final ReportToothill CQA Rport-Final.docx ■ <br /> i I` <br />