PROPOSED FLOW REGULATION OF THE ORKHON RIVER AND CONSTRUCTION OF - PowerPoint PPT Presentation

PROPOSED FLOW REGULATION OF THE ORKHON RIVER AND CONSTRUCTION OF RESERVOIR COMPLEX PROJECT TERMS OF REFERENCE FOR REGIONAL ENVIRONMENTAL ASSESSMENT AND ENVIRONMENTAL AND SOCIAL IMPACT ASSESSMENT Buryatiya, Russian Federation, March 20-31, 2017

CONTENT 1. BACKGROUND INFORMATION • Project objective and rationale • Project location • Initial screening results • Technical parameters • Technical indicators of initial screening • Coordination between FS and REA/ESIA • Interfaces between FS ToR and ESIA ToR 2. DRAFT Terms of Reference • Environmental and social impact assessment structure • ESIA ToR: Key environmental issues • ESIA ToR: Key social aspects • Environmental management plan • Expected outputs • Requirements concerning consultants

PROJECT OBJECTIVE AND RATIONALE Expected outcomes of the project: Objective: • • Through multi-year flow regulation of Orkhon river, will To build a reservoir complex and regulate achieve stable ecological flow regime without receding flow of Orkhon river for the water supply water levels even in driest periods of consumption centers in the Gobi region • Will achieve conservative use of limited ground water resources in project covered regions, leading to assured water sources in the region • Will create conditions for meeting increasing water consumption in the region driven by expanding mineral production. Rationale: Domestic water needs • Existing groundwater sources are being depleted • Growing demand in water in the region due to development Orkhon project is reflected in policy documents: • “National Security Concepts” adopted under July 15, 2010 Resolution of the Parliament No.48; • Resolution of GoM #304 on adoption of Action Plan for the implementation of “Water” National Program dated November 23, 2010 states: Item 3.2 of the Plan: In 2011-2015 development of FS shall be completed on priority basis for “ Orkhon-Gobi ” project, for improved water supply in high water demand regions.

PROJECT LOCATION DAM, RESERVOIR: From Orkhon river headwaters - 440 km From dam to confluence Orkhon to Selenge – 709 km From dam to Mongolia-Russia border – 733 km From dam to Baikal lake -1142 km Source: The Baikal Basin Information center

RESULTS OF INITIAL SCREENING Identified scenarios for improvement of water supply in Southern Gobi Region SCENARIO “ A ” Demands are met with the region’s ground water resources SCENARIO “ B ” Demands are met with surface water resources of bigger Khangai region rivers SCENARIO “ C ” Demands are met with both surface and groundwater resources SCENARIO “ D ” Demands are met with groundwater resources in basins of bigger rivers SCENARIO “ E ” Demand is met with collected resources of rain, snow, runoff water

RESULTS OF INITIAL SCREENING Identified scenarios for improvement of water supply in Southern Gobi Region From From Projected ground surface water Scenario Description water water Comment demand, resources, resources, м 3 /day % % Groundwater Demands are met with the A 174 060 100 0 in only South region’s ground water resources Gobi region Demands are met with surface B water resources of bigger Khangai 386 800 15 85 region rivers Demands are met with both C surface and groundwater 386 800 45 55 resources Demands are met with 55 % provided groundwater resources in basins by diverter D 386 800 100 of bigger rivers Khangai region waters

TECHNICAL PARAMETERS  Hydrologic parameters Orkhon River: • Catchment area (Orkhon post): 37 673 km 2 • River length : 1149 km • Multiyear average flow (Orkhon – Orkhon (Bulgan) post: 41,6 m 3 /sec • Average annual flowrate volumes: 1.3 km 3 /year (Orkhon – Sukhbaatar 3.92 km 3 /year )  Dam and reservoir parameters: • Dam height: 66 m • Barrage length: 360 m • Reservoir total capacity/volume: 730 mln.m 3 • Reservoir storage capacity: 580 mln.m 3 • Estimated lowest capacity of reservoir: 150mln.m 3 • Normal water levels: 1 173 m • Boosted water levels: 1 175 m • Reservoir area at forced discharge rates: 31km 2 • Reservoir area at normal discharge rates: 28 km 2 7

TECHNICAL INDICATORS OF INITIAL SCREENING Estimated water usage rate is Q = 2.5 m3/ сек . This is equal to 0.73 % of average flow of Selenge at Mongolian border. At border: Q=339 m3/ сек ; 8

TECHNICAL INDICATORS OF INITIAL SCREENING Source water supply: Groundwater resources of South Gobi + Surface water resources of Orkhon river:. • Surface water: 213000 m 3 /day • From existing aquifers:174000 m 3 /day • Water diversion – Underground piping • Length of main pipeline with spur lines 740 km 9

COORDINATION BETWEEN FS AND REA/ESIA STUDIES FEASIBILITY STUDY International Advisory committee reviews studies FS Finalized ToR finalized and Review of PFS and further Orkhon Project Technical and Financial proposal screening specialists hired to per form assessment studies undertaken and Pre-feasibility studies (PFS) Е NVIRONMENTAL AND SOCIAL International Advisory International Advisory Public consultations IMPACT ASSESSMENT Public consultation on committee reviews committee reviews around draft Terms of studies studies draft REA and EISA Reference for EISA (ToR) Review of REA and REA, ESIA Environmental Further Regional Orkhon Project ToR finalized and further Environmental Management Plan and EMP Environmental preliminary specialists hired to and social impact Finalized Studies undertaken Environmental and per form assessment undertaken social studies (PESS) assessment (REA) (ESIA)

ENVIRONMENTAL AND SOCIAL IMPACTS ASSESSMENT STRUCTURE К ey issues: 1. Hydrology / impacts on river flow (rates, volumes, distribution) 2. Dam safety, community health and safety, emergency preparedness and response 3. Environmental impacts 4. Social impacts The ESIA will identify all environmental and social elements, issues, plans and other aspects to be used at detailed feasibility study stage The geographic scope of the ESIA will extend from the proposed project site(s) downstream along the course of River and include the assessment of impacts, and planning for mitigation measures, for the Russian section of Selenge River as well as Lake Baikal.

ESIA TOR: KEY ENVIRONMENTAL ISSUES • Impacts on riverine and aquatic ecosystems • Impacts on fish population, species composition, migration • Habitat formation, conversion, and loss • Impacts on flow regime, volumes, distribution, including tributaries due to water abstraction • Impacts on microclimate; influence of weather and climate on severity of anticipated impacts • Impacts on landscapes, natural habitats, natural heritage sites • Erosion, slope stability and induced seismicity in reservoir area and downstream river systems; project in context of regional seismic risks • Influence of climate change on project’s environmental performance

ESIA TOR: KEY SOCIAL ASPECTS Stakeholder analysis Public consultations Project scenario assessment Cumulative impact Social aspects Local community resettlement program and rationale for its selection Places of tangible cultural heritage Resettlement analysis and documentation Local communities Grievance mechanism Implementation arrangements 13

ENVIRONMENTAL MANAGEMENT PLAN Dam safety plan Water biodiversity Monitoring plan protection planning Environmental Identification of management plan stakeholder roles Reclamation and participation/ planning operational involvement Plan for Plan for protection of protection of soil and plant archeological and coverage cultural heritage 14

EXPECTED OUTPUTS Public consultation REA report ESIA report program report

REQUIREMENTS CONCERNING CONSULTANTS KEY SPECIALISTS Person-month, Person-month, INTERNATIONAL CONSULTANTS NATIONAL CONSULTANTS experience, in years experience, in years Environmental and social Environmental and social 6 /  ≥15  8 /  ≥ 5 assessment team leader assessment team deputy leader 2 /  ≥10 Senior environmental assessment 3 /  ≥15 Hydrologist specialist Senior social assessment specialist 3 /  ≥10 2  /  ≥10 Meteorologist (land use, resettlement) 2 /  ≥10 2  / ≥ 10 Ichtiologist Hydro-geologist 2 /  ≥10 3  /  ≥10 Engineer – geologist Water ecologist/ limnologist 4  /  ≥10 Ecologist 2.5 /  ≥10 Biologist 4.5  /  ≥10 Anthropologist 2.5  /  ≥10 Archeologist 2.5  /  ≥10 Plant specialist 4  /  ≥10 Social economist 1  /  ≥ 5 Land specialist 3 /  ≥8 GIS specialist 3  /  ≥10 Ichthyologist 3  /  ≥10 Soil specialist 2  /  ≥10 Sociologist 2  /  ≥10 Hydro-technical engineer TOTAL 16 51