DOCUMENT RECEIVED IN ELECTRONIC FORMAT FOLLOWS: • SEALED PAGE/ FDEP RECEIVED DATE-STAMPED PAGE TECHNICAL SPECIFICATIONS AND CONSTRUCTION QUALITY ASSURANCE PLAN FOR HORIZONTAL EXPANSION OF COMBUSTION WASTE STORAGE AREA FILE NUMBER: 10-13-0249 Prepared for: ® The Reliable One ORLANDO UTILITIES COMMISSION STANTON ENERGY CENTER ORANGE COUNTY, FLORIDA December 2, 2011 Prepared by: Technical Specifications and Construction Quality Assurance Plan for Horizontal Expansion of Combustion Waste Storage Area Orlando Utilities Commission Stanton Energy Center Orange County, Florida Prepared by: Ardaman & Associates, Inc. Geotechnical, Environmental, and Materials Consultants A Tetra Tech Company Revision P1 December 2011 Nadim F. Fuleihan, Sc.D., P.E. Senior Consultant Florida License No. 31953 OUC - Stanton Energy Center Table of Contents Horizontal Expansion of CWSA Page 1 File Number 10-13-0249 Revision P1 December 2011 TABLE OF CONTENTS Section Title Page SECTION 1 ................................................................................................................................ 1-1 LIST OF SPECIFICATION SECTIONS ..................................................................... 1-1 SECTION 2 ................................................................................................................................ 2-1 INTENT ...................................................................................................................... 2-1 SECTION 3 ................................................................................................................................ 3-1 LIST OF DRAWINGS ................................................................................................ 3-1 SECTION 4 ................................................................................................................................ 4-1 CONTRACTOR=S UNDERSTANDING, DESCRIPTION OF WORK, DEFINITIONS AND GENERAL CONDITIONS ................................................................................. 4-1 4.1 Description of Work .................................................................................................... 4-1 4.2 Definition of Parties Involved ...................................................................................... 4-2 4.3 Responsibility and Authority ....................................................................................... 4-2 4.3.1 Owner ..................................................................................................................... 4-2 4.3.2 Engineer ................................................................................................................. 4-2 4.3.3 Contractor ............................................................................................................... 4-3 4.3.4 Liner Installer .......................................................................................................... 4-3 4.3.5 Regulatory Agency ................................................................................................. 4-3 4.4 Qualifications .............................................................................................................. 4-3 4.4.1 Engineer ................................................................................................................. 4-3 4.4.2 Contractor ............................................................................................................... 4-4 4.4.3 Liner Manufacturer ................................................................................................. 4-5 4.4.4 Liner Installer .......................................................................................................... 4-5 4.5 Reports and Documentation ....................................................................................... 4-6 4.5.1 Contractor ............................................................................................................... 4-6 4.5.2 CQA Engineer and Technician ............................................................................... 4-6 4.6 Project Meetings ......................................................................................................... 4-7 4.7 Scheduling and Coordination ..................................................................................... 4-8 4.8 Access, Inspection and Testing .................................................................................. 4-8 4.9 Survey Control............................................................................................................ 4-8 4.10 Precedents and Discrepancies ................................................................................... 4-9 4.11 Superintendence ........................................................................................................ 4-9 4.12 Contractor’s Staging Area .......................................................................................... 4-9 4.13 Contractor Safety ....................................................................................................... 4-9 4.14 Environmental Protection ........................................................................................... 4-9 4.15 Protection of Natural Resources .............................................................................. 4-10 OUC - Stanton Energy Center Table of Contents Horizontal Expansion of CWSA Page 2 File Number 10-13-0249 Revision P1 December 2011 4.16 Protection of Existing Facilities ................................................................................. 4-11 4.17 Daily and Final Cleanup ........................................................................................... 4-11 4.18 Final Inspection and Acceptance ............................................................................. 4-11 4.19 Applicable Specifications, Codes, and Standards .................................................... 4-11 4.20 Engineering Data ...................................................................................................... 4-12 SECTION 5 ................................................................................................................................ 5-1 SITE PREPARATION AND EARTHWORK CONSTRUCTION ................................. 5-1 5.1 Description of Work .................................................................................................... 5-1 5.2 Referenced Standards ............................................................................................... 5-1 5.3 Site Preparation and Maintenance ............................................................................. 5-2 5.3.1 Site Access ............................................................................................................. 5-2 5.3.2 Site Dewatering ...................................................................................................... 5-2 5.3.3 Clearing, Grubbing, and Stripping .......................................................................... 5-2 5.3.4 Unsuitable Soils/Waste Removal ........................................................................... 5-3 5.4 Earthwork for Site Grading ......................................................................................... 5-3 5.4.1 Existing and Excavated Base Surfaces .................................................................. 5-3 5.4.2 Fill Placement for Site Grading ............................................................................... 5-3 5.4.3 Source of Fill Materials ........................................................................................... 5-3 5.4.4 Fill Material Requirements ...................................................................................... 5-3 5.4.5 Compaction Criteria ................................................................................................ 5-4 5.4.6 Dewatering ............................................................................................................. 5-4 5.4.7 CQA Inspection and Testing .................................................................................. 5-4 5.4.8 Base Maintenance .................................................................................................. 5-4 5.5 Earthen Dike Construction ......................................................................................... 5-5 5.5.1 Source of Fill Materials ........................................................................................... 5-5 5.5.2 Dike Fill Material Requirements ............................................................................. 5-5 5.5.3 Dike Construction ................................................................................................... 5-5 5.5.4 Compaction Criteria ................................................................................................ 5-6 5.5.5 CQA Inspection and Testing .................................................................................. 5-6 5.5.6 Dike Maintenance ................................................................................................... 5-6 5.5.7 Erosion Control Features ....................................................................................... 5-6 SECTION 6 ................................................................................................................................ 6-1 CONSTRUCTION OF SOIL SUBBASE ..................................................................... 6-1 6.1 Description