GOVERNMENT OF PUNJAB PUNJAB AAB-E-PAK AUTHORITY VOLUME-II TECHNICAL SPECIFICATIONS FOR SUPPLY CONSTRUCTION, INSTALLATION OF WATER FILTRATION PLANTS IN BAHAWALPUR & MULTAN DIVISION JUNE 2021 PUNJAB AAB-E-PROJECT (PAPA) SUPPLY CONSTRUCTION, INSTALLATION OF WATER FILTRATION PLANTS IN BAHAWALPUR & MULTAN CONTRACT DOCUMENTS DIVISION TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS FOR SUPPLY CONSTRUCTION, INSTALLATION OF WATER FILTRATION PLANTS IN BAHAWALPUR & MULTAN DIVISION, PUNJAB Contents 1 GENERAL PROJECT DESCRIPTION ............................................................................................................................... 1 1.1 INTRODUCTION .............................................................................................................................................................. 1 1.2 OBJECTIVES ................................................................................................................................................................... 2 1.3 DESCRIPTION OF WORK .................................................................................................................................................. 2 1.4 CONTRACT AREA ............................................................................................................................................................ 2 1.5 PROJECT DESCRIPTION .................................................................................................................................................... 3 2 GENERAL REQUIREMENTS ....................................................................................................................................... 20 2.1 General .................................................................................................................................................................... 20 2.2 Responsibility for Information ................................................................................................................................ 20 2.3 Workmanship .......................................................................................................................................................... 20 2.4 Standards ................................................................................................................................................................ 21 2.5 Contractor’s Staffing and Labor Force ................................................................................................................... 21 2.6 Material and Equipment ......................................................................................................................................... 22 2.7 Accesses, Use of Land and Trespassing ................................................................................................................. 23 2.8 Contractor Activities on Private Property .............................................................................................................. 24 2.9 Safe Working Conditions ........................................................................................................................................ 24 2.10 Inspections and Tools.............................................................................................................................................. 28 2.11 Testing of Materials and Goods ............................................................................................................................. 28 2.12 Report Preparation, Meeting and Taking Photographs ........................................................................................ 29 2.13 Measurement and Payment ................................................................................................................................... 30 2.14 Temporary Site Facilities ......................................................................................................................................... 31 2.15 Review of Technical Documents ............................................................................................................................. 34 2.16 Review Procedure for Drawings ............................................................................................................................. 34 2.17 Submittal of Documents ......................................................................................................................................... 34 2.18 System of Units ....................................................................................................................................................... 38 3 CIVIL WORKS ............................................................................................................................................................ 40 3.1 Excavation, Trenching and Backfilling ................................................................................................................... 40 3.2 Concrete .................................................................................................................................................................. 45 3.3 Brick and Cement Concrete Block Work ................................................................................................................ 59 TOC-I PUNJAB AAB-E-PROJECT (PAPA) SUPPLY CONSTRUCTION, INSTALLATION OF WATER FILTRATION PLANTS IN BAHAWALPUR & MULTAN CONTRACT DOCUMENTS DIVISION TECHNICAL SPECIFICATIONS 3.4 Surface Rendering ................................................................................................................................................... 62 3.5 Damp Proofing ........................................................................................................................................................ 63 3.6 Roof Insulation ........................................................................................................................................................ 65 3.7 Flooring .................................................................................................................................................................... 66 3.8 Painting Work ......................................................................................................................................................... 67 3.9 Measurement and Payments ................................................................................................................................. 69 4 MECHANICAL / PLUMBING WORKS .......................................................................................................................... 71 4.1 Installation of Piping ............................................................................................................................................... 71 4.2 Skid Mounted Equipment Packages ....................................................................................................................... 79 4.3 Fabrication and Assembly ...................................................................................................................................... 87 4.4 Water Supply Pipes, Pipe Laying and Appurtenances ........................................................................................... 88 4.5 Installation .............................................................................................................................................................. 90 5 CONSTRUCTION OF TUBEWELLS .............................................................................................................................. 92 5.1 SCOPE ...................................................................................................................................................................... 92 5.2 GROUND WATER INVESTIGATION ......................................................................................................................... 92 5.3 INSTALLATION OF WELL CASING ............................................................................................................................ 94 5.4 GRAVEL SHROUDING .............................................................................................................................................. 97 5.5 DEVELOPMENT AND TESTING ................................................................................................................................ 98 5.6 MEASUREMENT AND PAYMENT .......................................................................................................................... 103 6 TUBEWELL PUMPING FACILITIES ............................................................................................................................ 104 6.1 SCOPE .................................................................................................................................................................... 104 6.2 MATERIALS AND CONSTRUCTION REQUIREMENTS ............................................................................................ 104 6.3 CIVIL WORKS ......................................................................................................................................................... 104 6.4 MECHANICAL WORKS ........................................................................................................................................... 104 6.5 OPERATION AND MAINTENANCE MANUAL .......................................................................................................