Draft Thematic Summary Development of Draft River Basin Management Plan for Sevan River Basin District in Armenia: Part 1 - Characterisation Phase Euwi-East-Am-04
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European Union Water Initiative Plus for Eastern Partnership Countries (EUWI+): Results 2 and 3 (ENI/2016/372-403) DRAFT THEMATIC SUMMARY DEVELOPMENT OF DRAFT RIVER BASIN MANAGEMENT PLAN FOR SEVAN RIVER BASIN DISTRICT IN ARMENIA: PART 1 - CHARACTERISATION PHASE EUWI-EAST-AM-04 December - 2018 This report has been prepared with the financial assistance of the European Commission. EUWI+: Thematic summary: Sevan River Basin District Produced by Geocom, Ltd. Authors: Aleksandr Arakelyan, Arshavir Avagyan, Gayane Shahnazaryan, Narek Tarasyan, Lilit Sargsyan, Harutyun Uloyan, Araksya Nersisyan Supervision Florence Pintus Date 20/12/2018 Version Draft Acknowledgements: WRMA of MNP of RA, State Hydromet Service of MES of RA, Sevan BMO, Gegharkunik Regional Administration, EMIC SNCO Produced for: EUWI+ Financed by: European Union – Co-financed by Austria/France Disclaimer: The EU-funded program European Union Water Initiative Plus for Eastern Partnership Countries (EUWI+ 4 EaP) is implemented by the UNECE, OECD, responsible for the implementation of Result 1 and an EU member state consortium of Austria, managed by the lead coordinator Umweltbundesamt, and of France, managed by the International Office for Water, responsible for the implementation of Result 2 and 3. This document, the “Technical summary”, was produced by the EU member state consortium with the financial assistance of the European Union. The views expressed herein can in no way be taken to reflect the official opinion of the European Union or the Governments of the Eastern Partnership Countries. This document and any map included herein are without prejudice to the status of, or sovereignty over, any territory, to the delimitation of international frontiers and boundaries, and to the name of any territory, city or area. Page | 2 EUWI+: Thematic summary: Sevan River Basin District CONTENT Acronyms ................................................................................................................................................. 4 1 About the river basin ........................................................................................................................ 5 1.1 Characterization of the river basin district ............................................................................... 5 1.1.1 Natural Conditions in the River Basin District (RBD) ........................................................... 5 1.1.2 Water Resources ................................................................................................................. 7 1.1.3 Groundwater Resources ...................................................................................................... 8 1.1.4 Protected areas ................................................................................................................... 8 1.1.5 Driving forces ....................................................................................................................... 9 1.1.6 The river basin in the future ............................................................................................... 10 1.2 Pressures and impacts of human activities ........................................................................... 11 1.2.1 Water Abstraction .............................................................................................................. 11 1.2.2 Point Sources of Pollution ................................................................................................. 11 1.2.3 Diffuse Sources of Pollution .............................................................................................. 12 1.3 Water bodies status & delineation ......................................................................................... 13 1.3.1 Water bodies delineated within Sevan RBD ...................................................................... 13 1.3.2 Assessment of Chemical Status of Surface Water Bodies................................................ 13 1.3.3 Assessment of Ecological Status of Surface Water Bodies based on Chemical and Biological Quality ............................................................................................................................ 14 1.3.4 Assessment of Ecological Status of Water Bodies based on Hydromorphology .............. 14 1.3.5 Assessment of Groundwater Bodies Status ...................................................................... 15 1.4 Monitoring .............................................................................................................................. 15 1.4.1 Surface Water Quantity Monitoring ................................................................................... 15 1.4.2 Surface Water Quality Monitoring ...................................................................................... 15 1.4.3 Hydrogeological Monitoring ............................................................................................... 15 1.5 Climate Change Trends and Impact Analysis ....................................................................... 17 2 Main issues .................................................................................................................................... 18 3 RBMP'S Development Work Plan for Sevan and Hrazdan River Basin Districts, Armenia ........... 19 4 Technical reports ............................................................................................................................ 20 5 Glossary ......................................................................................................................................... 21 Page | 3 EUWI+: Thematic summary: Sevan River Basin District ACRONYMS Armstat Statistical Committee of the Republic of Armenia AWB Artificial Water Body AWSC Armenian Water Sewerage Company CEPA Comprehensive and Enhanced Partnership Agreement CJSC Close Joint-Stock Company CORINE Coordination of Information on the Environment DSS Decision Support System GEP Good Ecological Potential GES Good Ecological Status GPM GEOPROMINING GOLD GWB Groundwater Body HMWB Heavily Modified Water Body HPP Hydropower Plant IPCC Intergovernmental Panel on Climate Change LLC Limited Liability Company Ltd. Limited Company RA Republic of Armenia RBD River Basin District RBMP River Basin Management Plan RCP Representative Concentration Pathway SHPP Small Hydropower Plant SRES Special Report on Emissions Scenarios SWB Surface Water Body WB Water Body WBPR Water Body possible at Risk WBR Water Body at Risk Page | 4 EUWI+: Thematic summary: Sevan River Basin District 1 ABOUT THE RIVER BASIN 1.1 Characterization of the river basin district 1.1.1 Natural Conditions in the River Basin District (RBD) Location and Geographic Overview: The Basin of Lake Sevan is the area from where surface and groundwater flows to the main lake. According to the “Law about the Lake Sevan” of RA, Kechut and Spandaryan Reservoirs, as well as the catchment basins of Arpa and Vorotan Rivers are also considered as the part of Lake Sevan watershed area as the water reaches Lake Sevan through the Arpa-Sevan tunnel. Though these territories are not a part of Sevan RBD, however water transfers will be considered as inputs or outputs during the calculation of the water balance. Sevan RBD is situated in the Eastern part of Armenia. The basin of the Lake Sevan covers 1/6th of the total territory of Armenia. The surface area of Sevan RBD is 4721 km2, the area of Lake Sevan itself is 1279 km2 (according to the Hydromet data for 2017). Sevan RBD surrounded by Geghama Mountains (from West), Vardenis Mountains (from South), Areguni Mountains (North-East) and Sevan and East Sevan (East) mountain ranges with elevations up to 3598 m (Vardenis). Sevan RBD spreads from 39°87' to 40°68' of Northern latitude and from 44°76' to 45°98' of Eastern longitude. The maximum stretch from South to North is 90 km, from East to West – 103 km. One of the peculiarities of Sevan RBD is the small ratio between the catchment area and the surface area of the Lake (3:1) compared to other major lakes (10:1 in average) [Babayan et. al., 2006]. Sevan is a high-mountain lake located on the altitude of 1900.65 m above the sea level. Lake Sevan is in the fifth place among the major high-mountainous lakes in the world in terms of altitude and surface area, (after the lakes Titicaca (Bolivia, Peru), Poopo (Bolivia), Namtso (China) and Qinghai (China)). Noratus and Artanish capes and Shorzha underwater shaft-threshold are dividing the Lake into two parts: Major Sevan (910 km2) and Minor Sevan (345 km2). Climate: The climate in the basin of Lake Sevan is moderately continental. Its formation is influenced by the intensity of solar radiation, atmospheric circulation, the absolute altitude and topography. The high-mountainous location of the Lake Sevan makes the basin cooler than other areas in Armenia. The average temperature in January in the lake zone is -10°С, in the watersheds – -12°С, in July, respectively, 16°С and 8°С. Annual precipitation are 450 mm on the lake, 850 mm in the highlands. In winter, a stable snow cover is formed. The Lake Sevan is famous with bristle winds (especially in the summertime). The seasonal climate change is quite significant in the basin of the lake. Flora: The flora of the basin is typical to the highlands of the Transcaucasus Region known with great diversity of plants. Along the shoreline of the lake the greatest artificial woodland of the country is situated, which offers various examples of natural and human affected ecological