GOVERNMENT OF PUNJAB PUNJAB AAB-E-PAK AUTHORITY VOLUME-II TECHNICAL SPECIFICATIONS FOR SUPPLY, CONSTRUCTION, INSTALLATION OF WATER FILTRATION PLANTS & DIRECT SUPPLY IN DG KHAN DIVISION, PUNJAB MARCH 2021 PUNJAB AAB-E-PROJECT (PAPA) SUPPLY CONSTRUCTION, INSTALLATION OF WATER FILTRATION PLANTS & DIRECT SUPPLY IN DG KHAN CONTRACT DOCUMENTS DIVISION TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS FOR SUPPLY, CONSTRUCTION, INSTALLATION OF WATER FILTRATION PLANTS & DIRECT SUPPLY IN DG KHAN 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 ......................................................................................................................... 13 2.1 General .............................................................................................................................................. 13 2.2 Responsibility for Information ........................................................................................................... 13 2.3 Workmanship .................................................................................................................................... 13 2.4 Standards .......................................................................................................................................... 14 2.5 Contractor’s Staffing and Labor Force............................................................................................... 14 2.6 Material and Equipment ................................................................................................................... 15 2.7 Accesses, Use of Land and Trespassing ............................................................................................. 16 2.8 Contractor Activities on Private Property .......................................................................................... 17 2.9 Safe Working Conditions ................................................................................................................... 17 2.10 Inspections and Tools ........................................................................................................................ 21 2.11 Testing of Materials and Goods ........................................................................................................ 21 2.12 Report Preparation, Meeting and Taking Photographs ..................................................................... 22 2.13 Measurement and Payment .............................................................................................................. 23 2.14 Temporary Site Facilities ................................................................................................................... 24 2.15 Review of Technical Documents ........................................................................................................ 27 2.16 Review Procedure for Drawings ........................................................................................................ 27 2.17 Submittal of Documents .................................................................................................................... 27 2.18 System of Units ................................................................................................................................. 31 3 CIVIL WORKS .............................................................................................................................................. 33 3.1 Excavation, Trenching and Backfilling ............................................................................................... 33 TOC-I PUNJAB AAB-E-PROJECT (PAPA) SUPPLY CONSTRUCTION, INSTALLATION OF WATER FILTRATION PLANTS & DIRECT SUPPLY IN DG KHAN CONTRACT DOCUMENTS DIVISION TECHNICAL SPECIFICATIONS 3.2 Concrete ............................................................................................................................................ 38 3.3 Brick and Cement Concrete Block Work ............................................................................................ 52 3.4 Surface Rendering ............................................................................................................................. 55 3.5 Damp Proofing .................................................................................................................................. 56 3.6 Roof Insulation .................................................................................................................................. 58 3.7 Flooring ............................................................................................................................................. 59 3.8 Painting Work ................................................................................................................................... 60 3.9 Measurement and Payments ............................................................................................................ 62 4 MECHANICAL / PLUMBING WORKS ........................................................................................................... 64 4.1 Installation of Piping ......................................................................................................................... 64 4.2 Skid Mounted Equipment Packages .................................................................................................. 72 4.3 Fabrication and Assembly ................................................................................................................. 80 4.4 Water Supply Pipes, Pipe Laying and Appurtenances ........................................................................ 81 4.5 Installation ........................................................................................................................................ 83 5 CONSTRUCTION OF TUBEWELLS ................................................................................................................ 85 5.1 SCOPE ................................................................................................................................................ 85 5.2 GROUND WATER INVESTIGATION ..................................................................................................... 85 5.3 INSTALLATION OF WELL CASING ....................................................................................................... 87 5.4 GRAVEL SHROUDING ......................................................................................................................... 90 5.5 GROUTING OF PUMP HOUSING CASING ........................................................................................... 91 5.6 DEVELOPMENT AND TESTING ........................................................................................................... 93 5.7 MEASUREMENT AND PAYMENT ....................................................................................................... 99 6 TUBEWELL PUMPING FACILITIES ............................................................................................................. 100 6.1 SCOPE .............................................................................................................................................. 100 6.2 MATERIALS AND CONSTRUCTION REQUIREMENTS ........................................................................ 100 6.3 CIVIL WORKS ................................................................................................................................... 100 6.4 MECHANICAL WORKS ...................................................................................................................... 100 6.5 OPERATION AND MAINTENANCE MANUAL .................................................................................... 106 6.6 SPARES AND TOOLS ......................................................................................................................... 106 6.7 MEASUREMENT AND PAYMENT ..................................................................................................... 106 7 sUPPLY & INSTALLATION OF HIGH DENSITY POLYETHYENE PIPES ............................................................ 107 7.1 Work Included ................................................................................................................................. 107 7.2 Shop Drawings ................................................................................................................................ 107 TOC-II PUNJAB AAB-E-PROJECT (PAPA) SUPPLY CONSTRUCTION, INSTALLATION OF WATER FILTRATION PLANTS & DIRECT SUPPLY IN DG KHAN CONTRACT DOCUMENTS DIVISION TECHNICAL SPECIFICATIONS