ASIAN DEVELOPMENT BANK FUNDED WATER SUPPLY AND SANITATION SECTOR PROJECT - ADDITIONAL FINANCING Date of preparation 2013 Date of revision - 18.12.2014 Date of approval -13.03.2015 X SUBPROJECT L2860-ICB-1-10: IMPROVEMENT OF ARAGATSOTN REGION SETTLEMENTS WATER SUPPLY SYSTEM INITIAL ENVIRONMENTAL EXAMINATION (Updated) Yerevan, March, 2015 HGSN Ltd. -JINJ Ltd. Water Supply and Sanitation Sector Project - Additional Financing STATE COMMITTEE OF WATER SYSTEM UNDER THE RA MINISTRY FOR TERRITORIAL GOVERNANCE “ARMWATERSEWERAGE” CJSC ASIAN DEVELOPMENT BANK FUNDED WATER SUPPLY AND SANITATION SECTOR PROJECT - ADDITIONAL FINANCING Subproject X IMPROVEMENT OF ARAGATSOTN REGION WATER SUPPLY SYSTEMS INITIAL ENVIRONMENTAL EXAMINATION (Talin town and Aruch, Partizak, Nor Amanos, Arevut, Kanch, Hakko, Sorik, Karaberd villages of Aragatsotn region, RA) HGSN Ltd, Director V. Hovasapyan Environmental expert K.Sahakyan Yerevan, March , 2015 Subproject X -Preliminary Design 2 HGSN Ltd. -JINJ Ltd. Water Supply and Sanitation Sector Project - Additional Financing TABLE OF CONTENTS 1. Scope of Work ................................................................................................................ 4 2. Description of the Existing Water Supply and Sewage Systems ............................ 6 2.1. Description of the water supply systems ........................................................................... 6 3. Geographical Location and Climate of the Settlements ........................................... 8 3.1. Villages of Arutch, Partizak, Nor Amanos of Aragatsotn Region ....................................... 8 3.2. Talin town and villages of Arevut, Kanch, Hako, Sorik of Aragatsotn Region and Karaberd village of Shirak Region............................................................................................................... 9 4. Biodiversity and Specially Protected Areas .................................................................. 9 4.1. Villages of Arutch, Partizak, Nor Amanos of Aragatsotn Region, RA ................................ 9 4.2. The town of Talin and villages of Arevut, Kanch, Hako, Sorik of Aragatsotn Regionand Karaberd village of Shirak Region ............................................................................................. 10 5. Environmental Impact Assessment ............................................................................ 11 Appendix 1. Checklist for Quick Environmental Evaluation ........................................................ 12 Appendix 2: Checklist for Preliminary Climate Risk Screening .................................................. 15 Appendix 3.1. Aragatsotn subproject layout .............................................................................. 16 Appendix 3.2. Aragatsotn subproject layout (external waterlines) .............................................. 16 Subproject X -Preliminary Design 3 HGSN Ltd. -JINJ Ltd. Water Supply and Sanitation Sector Project - Additional Financing 1. Scope of Work This subcomponent of the subproject aims at the improvement of water supply systems of Talin town and Aruch, Partizak, Nor Amanos, Arevut, Kanch, Hako, Sorik, Karaberd rural communities of RA Aragatsotn Region, included in the frame of the project. Priority has been given to the improvement of water supply systems, the purpose of which the following works have been carried out: Works in the external systems of the settlements . Repairing of catchment chambers of “Zovasar-Jinjakner” gravity system, fencing the sanitary zones of the catchments. t. Talin . Repair of DRRs with capacities of 2x1000m3 and 2x250m3, . Repair of chlorination station, . Reconstruction and construction of pipes with a total length of L=19065 m and diameters of de50-de160 with polyethylene pipes. Replacement of entry lines of 45 apartment and public buildings. Replacement of the entry lines of 569 private houses, installing water metering chambers. Construction and reconstruction of water supply (6) and fire hydrant chambers (6), buried valve junctions (59). Aruch village . Installation of chlorination device on the existing DRRs, . Reconstruction and construction of de50-de160, L=7850 m long pipes with polyethylene pipes, . Replacement of the entry lines of 238 private houses, installation of water metering chambers, . Construction and reconstruction of valve (3 pieces) and buried valve junctions (6 pieces). Partizak village . Installation of chlorination device on the existing DRRs, . Reconstruction and construction of de50-de110, L=3650 m long pipes with polyethylene pipes, . Replacement of the entry lines of 86 private houses, installation of water metering chambers, . Construction and reconstruction of valve junctions (2 pieces). Nor Amanos village . Installation of chlorination device on the existing DRRs, Subproject X -Preliminary Design 4 HGSN Ltd. -JINJ Ltd. Water Supply and Sanitation Sector Project - Additional Financing . Reconstruction and construction of de50-de160, L=6450 km long pipes with polyethylene pipes. Replacement of the entry lines of 120 private houses, installation of water metering chambers, . Construction and reconstruction valve (3 pieces) and buried valve junctions (10 pieces), . Fencing the DRR sanitary zone with a capacity of V=300m3. Arevut village . Reconstruction of approximately L=4000 m long external conduit with pipes of de90 diameter, . Reconstruction and construction of de50-de90, L=970m long pipes with polyethylene pipes, . Replacement of the entry lines of 35 private houses, installation of water metering chambers. Construction and reconstruction of valve (1 piece) and buried valve junctions (1 piece). Kanch village . Reconstruction and construction of de50-de90 pipes, L=2880m long pipes with polyethylene pipes, . Replacement of the entry lines of 35 private houses, installation of water metering chambers, . Construction and reconstruction of buried valve junctions (1 piece). Hako village . Reconstruction of external conduit de90, L=1600m long pipes with polyethylene pipes, . Reconstruction and construction of de50-de90, L=1,550m long pipes with polyethylene pipes, . Replacement of the entry lines of 26 private houses, installation of water metering chambers, . Construction and reconstruction of valve (2 pieces) and buried valve junctions (1 piece). Sorik village . Reconstruction of the L=3,660m long external conduit with pipes of de90 diameter, . Reconstruction of the DRR with a capacity of V=100m3, fencing the sanitary zone, . Reconstruction and construction of de50-de90, L=1300m long pipes with polyethylene pipes. Replacement of the entry lines of 25 private houses, installation of water metering chambers. Construction and reconstruction of valve junctions (1 piece). Karaberd village . Reconstruction of approximately L=2300m long external conduit with pipes of de110 diameter, . Reconstruction and construction of de40-de160, L=8315m long pipes with polyethylene pipes, . Replacement of the entry lines of 230 private houses, installation of water metering chambers, . Construction and reconstruction of valve (3 pieces) and buried valve junctions (8 pieces). Subproject X -Preliminary Design 5 HGSN Ltd. -JINJ Ltd. Water Supply and Sanitation Sector Project - Additional Financing Table 1: Brief description of the implemented works manos Works M/U v. Total t. Talin Hako v. Sorik v. Aruch v. Kanch v. Arevut v. Partizak v. Karaberd v. Nor A Reconstruction of the lm - 4000 - 1550 3660 2300 11510 external conduit Repair of DRRs m3 2500 100 2600 Repair of chlorination piece 1 station Installation of chlorination piece 1 1 1 3 devices Reconstruction of water supply internal network with pipes of de50-de160 lm 19065 7850 3650 6450 970 2880 1550 1300 8320 51915 diameters, testing, washing, disinfecting Construction of the entry lines of private houses, piece 569 238 86 120 35 35 26 25 230 1364 installing water metering chambers Replacement of the entry piece 45 lines of apartment and 45 public buildings Construction, piece 12 reconstruction of the 12 water supply and hydrant chambers Construction of buried piece 58 9 2 13 2 1 3 1 11 100 valve junctions Population of the Subproject at the date of 01.01.2014 was 11,412 people, 6,593 of which is the urban population. The overall number of the subscribers of Talin town is 1,712 people. For the rural areas, the water is provided for the wholesale. According to the data published by the “Demographic Handbook of Armenia 2012” the population is 0.43%: Due to the project implementation, it is planned to provide drinking and sustainable water supply to the consumers of the communities. 2. Description of the Existing Water Supply and Sewage Systems 2.1. Description of the water supply systems The town of Talin included in the subproject is served by AWS CJSC. Aruch, Partizak, Nor Amanos, Arevut, Kanch, Hako, Sorik, Karaberd villages are also served by AWS CJSC for the Subproject X -Preliminary Design 6 HGSN Ltd. -JINJ Ltd. Water Supply and Sanitation Sector Project - Additional Financing wholesale. The water supply of Talin is implemented from “Karmrashen” and “Kentaghbyur” catchments by gravity system. The waters transmitted from catchments are disinfected in the chlorination plant situated in the area of Talin DRRs. The distribution network of Talin is served by 4 DRRs with the total volume of Table 2. Design population growth by years Talin town population number by years 2014 19665 2023 6882 2032 7153 2015 19685 2024 6912 2033 7184 2016 19704 2025 6941 2034 7215 2017 19724 2026 6971 2035 7246