Technical Assistance Consultant’s Report Project Number: 48098-001 November 2018 Islamic Republic of Pakistan: Balochistan Water Resources Development Project (Financed by the Japan Fund for Poverty Reduction) Pre-Feasibility Report – Mula River Basin Prepared by: Techno-Consult International (Pvt.) Ltd. (Water Division) Karachi, Pakistan For: Irrigation Department, Government of Balochistan, Pakistan This consultant’s report does not necessarily reflect the views of ADB or the Government concerned, and ADB and the Government cannot be held liable for its contents. (For project preparatory technical assistance: All the views expressed herein may not be incorporated into the proposed project’s design. The Government of Balochistan Balochistan Water Resources Development Project Preparatory Technical Assistance (TA 8800-PAK) PREFEASIBILITY REPORT OF MULA RIVER BASIN 20th October, 2017 i Table of Contents 1 Introduction .................................................................................................................. 1 Background of BWRDP and the PPTA Assignment ................................................ 1 Mula River Basin ..................................................................................................... 2 Potential for Water Resources Development in Mula River Basin ........................... 2 PPTA Scope of Services ......................................................................................... 3 Outline of the Report ............................................................................................... 4 2 Methodology ................................................................................................................ 6 Option Study – Selection of River Basin and Sub-projects ...................................... 6 LAR and Social Reconnaissance/Screening Surveys ............................................. 6 Field Surveys and Investigations by the Design Team ............................................ 7 Climate Change Impacts and Adaptations .............................................................. 8 Existing and Proposed Irrigated Agriculture ............................................................ 8 Land Capability Assessment and Soil and Water Quality ........................................ 9 Initial Engineering Design of Sub-Projects .............................................................. 9 Existing and Proposed Cropping Pattern ................................................................ 9 Existing and Proposed Cropping Intensity ............................................................... 9 Rapid Environmental Assessment ........................................................................ 10 Engineering Estimates .......................................................................................... 11 Economic and Financial Analysis .......................................................................... 11 3 Study Results – Mula River Basin ............................................................................ 12 Current Water Balance of Mula River Basin .......................................................... 12 Selected Sub-Projects .......................................................................................... 12 Water Availability of Potential Sub-Projects .......................................................... 12 Water Required for Development of Sub-projects in BWRDP and Pipeline Sub- projects ........................................................................................................................... 13 Climate Change Impacts and Adaptations ............................................................ 13 Agriculture and Watersheds .................................................................................. 14 Gender Aspects in Mula River Basin ..................................................................... 14 Potential Impacts Assessment for Mula River Basin ............................................. 15 Rapid Environmental Assessment ........................................................................ 16 Layout Plan, Initial Design and Engineering Estimates of Potential Sub-projects .. 16 Economic and Financial Analysis .......................................................................... 17 Analysis of Targets Accomplished ........................................................................ 17 4 Study Results – Sub-Project Level ........................................................................... 20 Churri infiltration gallery Sub-project ..................................................................... 20 Pashta khan & Garambowad Sub-project ............................................................. 33 Karkh River Development Sub-Project .................................................................. 48 Kharzan Hatachi Core Sub-project........................................................................ 63 Manyalo, Raiko and Rind Ali Perennial Irrigation Sub-project ............................... 76 5 Water Availability and Crop Water Requirement of Sub-Projects .......................... 88 ii List of Tables Table 1: Water balance available in the current scenario for Mula river basin ....................... 2 Table 2: Schedule I water sector projects requiring an IEE ................................................. 10 Table 3: Schedule II water sector projects requiring an EIA ................................................ 10 Table 4: Balance water available in current scenario for Mula river basin ............................ 12 Table 5: Surface water available for the potential sub-projects using ArcSWAT Model ....... 12 Table 6: Water balance of Mula river basin in post-BWRDP and post-pipeline sub-projects 13 Table 7: Land use wise area under sub-projects of Mula river basin (ha) ............................ 14 Table 8: Environmental categorization of sub-projects in Mula river basin ........................... 16 Table 9: Design features of five sub-projects in the Mula river basin ................................... 16 Table 10: Estimated cost and target of selected sub-projects in Mula river basin ................ 18 Table 11: Cost of development of sub-projects in Mula River basin sub-projects ................ 19 Table 12: Economic analysis of selected sub-projects ........................................................ 19 Table 13: Salient features - Churri infiltration gallery sub-project ......................................... 21 Table 14: Initial cost estimate for Churri infiltration gallery sub-project ................................ 22 Table 15: Demography of Churri infiltration gallery sub-project ........................................... 22 Table 16: Areal Mean Annual Rainfall in mm- Mula River Basin (1980-2014) ..................... 23 Table 17: Involuntary resettlement impact categorization checklist ..................................... 24 Table 18: Indigenous peoples impact categorization form ................................................... 25 Table 19: Environmental checklist for Churri infiltration gallery sub-project ......................... 26 Table 20: Total area and cost of Pashta Khan and Garambowad perennial irrigation sub- project ................................................................................................................. 35 Table 21: Salient features of Pashta Khan .......................................................................... 35 Table 22: Salient features of Garambowad ......................................................................... 35 Table 23: Initial cost estimate for Pashta Khan and Garambowad sub-project .................... 35 Table 24: Demography of the sub-project area ................................................................... 36 Table 25: Involuntary resettlement impact categorization checklist ..................................... 37 Table 26: Indigenous peoples impact categorization form ................................................... 38 Table 27: Environmental checklist for Pashta Khan and Garambowad perennial irrigation sub-project .......................................................................................................... 39 Table 28: Salient features - Karkh river core sub-project ..................................................... 52 Table 29 Initial cost estimate – Karkh river core sub-project ................................................ 52 Table 30: Demography of Karkh River irrigation sub-project area ....................................... 52 Table 31: Involuntary resettlement impact categorization checklist ..................................... 53 Table 32: Indigenous peoples impact categorization form ................................................... 54 Table 33: Environmental checklist for Karkh irrigation sub-project....................................... 56 Table 34: Salient features - Kharzan Hatachi infiltration gallery sub-project ........................ 65 Table 35: Initial cost estimate for Kharzan Hatachi infiltration gallery sub-project ................ 65 Table 36: Demography of core sub-project ......................................................................... 66 Table 37: Involuntary Resettlement Impact Categorization Checklist .................................. 67 Table 38: Indigenous Peoples Impact Categorization Form ................................................ 68 Table 39: Environmental checklist for Kharzan Hatachi infiltration gallery sub-project