UNITED REPUBLIC of TANZANIA Updated Environmental and Social Impact Assessment (ESIA) Report for the Proposed Construction of Fa
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UNITED REPUBLIC OF TANZANIA MINISTRY OF WATER Updated Environmental and Social Impact Assessment (ESIA) Report for the Proposed Construction of Farkwa Dam, Water Treatment Plant and Water Conveyance System to Chemba District Council and Dodoma City, Dodoma Region, Tanzania Ministry of Water Kolon Building adjacent to DUWASA Head Office, Chimwaga Road, P.O Box 456, 40473 Dodoma, Tanzania, Tel: +255 26 2322602/+255 26 2322602 Email: [email protected] Submitted to: The National Environment Management Council 35 Regent Street, P.O. Box 63154, 11404 Dar es Salaam, Tanzania. Tel: +255 (022)2774852/89; Fax: +255 (022) 2774901 E-mail: [email protected] Prepared by: TRES House, Plot No. 236/1 TRA Road, Mwenge Area P.O Box 31155 Dar es Salaam Phone (+255) 0713 425442/ 0782 425442 Fax: +255 22 2461054, E-mail: [email protected] Website: www.tresconsult-tz.com August, 2021 BASIC INFORMATION ABOUT THE PROJECT Project title: Proposed Construction of Farkwa Dam, Water Treatment Plant and Water Conveyance System to Chemba and Dodoma City and Chemba District Council, Dodoma Region, Tanzania Location: Chemba District Council and Dodoma City, Dodoma Region, Tanzania Proponent Contacts: Permanent Secretary, Ministry of Water; Kolon Building adjacent to DUWASA Head Office, Chimwaga Road, P.O Box 456, 40473 Dodoma, Tanzania, Tel: +255 26 2322602/+255 26 2322602 Email: [email protected] Sponsor of the project: Government of the United Republic of Tanzania EIA Consultants: TRES-Consult Tanzania Limited, TRES House, Plot No. 236/1, TRA Road, Mwenge Area, P.O Box 31155 Dar es Salaam, Tanzania Phone (+255) 0713425442/ 0782663447; Fax: +255 22 2461054; E-mail: [email protected]; Contact Person: Bashiru Abdul / Abel Sikaona ESIA Preparation Period: September 2014/2015 Revised ESIA version: July/August 2021 i TABLE OF CONTENTS TABLE OF CONTENTS ....................................................................................................................................... II LIST OF FIGURES .............................................................................................................................................. VI LIST OF TABLES ............................................................................................................................................... VII ABBREVIATIONS AND ACRONYMS .................................................................................................................. IX 1 EXECUTIVE SUMMARY ................................................................................................................................... 1 1.1 OVERVIEW OF THE PROJECT ......................................................................................................................... 1 1.2 BACKGROUND OF THE ENVIRONMENTAL IMPACT ASSESSMENT ................................................................. 1 1.3 BRIEF DESCRIPTION OF THE PROJECT SITE .................................................................................................... 2 1.4 INSTITUTIONAL AND LEGAL FRAMEWORK FOR IMPLEMENTATION OF THE PROJECT .................................. 3 1.5 MAJOR AND MODERATE POSITIVE AND NEGATIVE IMPACTS ....................................................................... 6 1.6 CONSULTATIONS ........................................................................................................................................ 10 1.7 ENVIRONMENTAL AND SOCIAL MANAGEMENT PLAN ................................................................................ 14 1.8 ENVIRONMENTAL MONITORING PLAN ....................................................................................................... 30 1.9 ALTERNATIVES CONSIDERED ...................................................................................................................... 39 1.10 COST BENEFIT ANALYSIS ........................................................................................................................... 39 1.11 DECOMMISSIONING PLAN ........................................................................................................................ 40 1.12 GRIEVANCE REDRESS MECHANISM .......................................................................................................... 40 11.13 CONCLUSION AND RECOMMENDATIONS ............................................................................................... 41 2 INTRODUCTION ........................................................................................................................................... 43 2.1 PROJECT BACKGROUND .............................................................................................................................. 43 2.2 PROJECT DEVELOPMENT OBJECTIVES ......................................................................................................... 43 2.3 THE SCOPING STUDY ................................................................................................................................... 44 2.4 OBJECTIVE OF THE ENVIRONMENTAL IMPACT STUDY ................................................................................ 45 2.5 APPROACH AND METHODOLOGY OF THE ESIA STUDY ................................................................................ 46 2.6 IMPACT ASSESSMENT ................................................................................................................................. 56 2.7 REPORT STRUCTURE ................................................................................................................................... 57 3 POLICY, LEGAL AND ADMINISTRATIVE FRAMEWORK .................................................................................. 60 3.1 INTRODUCTION .......................................................................................................................................... 60 3.2 NEED FOR ENVIRONMENTAL IMPACT ASSESSMENT ................................................................................... 60 3.3 RELEVANCE POLICIES .................................................................................................................................. 61 3.4 NATIONAL PLANS AND STRATEGIES ............................................................................................................ 66 3.5 PRINCIPAL LEGISLATION ............................................................................................................................. 68 3.6 NATIONAL REGULATIONS ........................................................................................................................... 75 3.7 INTERNATIONAL TREATIES AND CONVENTIONS ......................................................................................... 78 3.8 AFRICAN DEVELOPMENT BANK GROUP INTEGRATED SAFEGUARDS SYSTEM ............................................ 80 3.9 INSTITUTIONAL FRAMEWORK .................................................................................................................... 81 4 DESCRIPTION OF PROJECT AND JUSTIFICATION ........................................................................................... 86 4.1 PROJECT AREA AND LOCATION ................................................................................................................... 86 4.2 PROJECT ESIA BOUNDARIES ........................................................................................................................ 87 4.3 SITE DESCRIPTION ....................................................................................................................................... 88 4.4 PROJECT COMPONENTS AND DESCRIPTION ............................................................................................... 88 4.5 DAM DESIGN ............................................................................................................................................... 92 4.6 APURTENANT AND DIVERSION WORKS ...................................................................................................... 93 4.7 SADDLE DAM .............................................................................................................................................. 96 4.8 MAIN DAM .................................................................................................................................................. 97 4.9. CONVEYANCE SYSTEM TO DODOMA CITY ............................................................................................... 101 4.10 CONVEYANCE SYSTEM TO CHEMBA DISTRICT COUNCIL ......................................................................... 105 4.11 WATER TREATMENT PLANT .................................................................................................................... 106 4.12 PUMPING SYSTEM .................................................................................................................................. 107 ii 4.13 OTHER INFRASTRUCTURES ..................................................................................................................... 110 4.14. CONSTRUCTION MATERIAL.................................................................................................................... 111 4.15 UTILITIES ................................................................................................................................................. 113 4.16 FINANCIALS ............................................................................................................................................