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Water Supply and Sanitation Sector Project –</Nobr> Initial Environmental Examination Loan 2860 (SF) July 2015 ARM: Water Supply and Sanitation Sector Project – Additional Financing Improvement of Kotayk Region Settlements Water Supply Systems (revised version) Prepared by the Armenian Water and Sewerage Closed Joint Stock Company (AWSC) for the Asian Development Bank. The initial environmental examination is a document of the borrower. The views expressed herein do not necessarily represent those of ADB’s Board of Directors, Management, or staff, and may be preliminary in nature. Your attention is directed to the “terms of use” section of this website. In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area. HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Kotayk region STATE COMMITTEE OF WATER SYSTEM UNDER THE RA MINISTRY FOR TERRITORIAL GOVERNANCE “ARMWATERSEWERAGE” CJSC FUNDED BY ASIAN DEVELOPMENT BANK WATER SUPPLY AND SANITATION SECTOR PROJECT - ADDITIONAL FINANCING Date of preparation 17.10.2013 Date of revision 14.07.2015 IV Subproject IMPROVEMENT OF THE WATER SUPPLY SYSTEMS OF THE SETTLEMENTS OF KOTAYK REGION L2860-ICB-1-03: ABOVYAN, CHARENTSAVAN, HRAZDAN, TSAGHKADZOR TOWNS AND KAGHSI, AKUNK, SOLAK VILLAGES INITIAL ENVIRONMENTAL EXAMINATION REVISED VERSION Yerevan, July, 2015 Subproject IV Initial Environmental Examination 1 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Kotayk region STATE COMMITTEE OF WATER SYSTEM UNDER THE RA MINISTRY FOR TERRITORIAL GOVERNANCE “ARMWATERSEWERAGE” CJSC FUNDED ASIAN DEVELOPMENT BANK WATER SUPPLY AND SANITATION SECTOR PROJECT - ADDITIONAL FINANCING Subproject IV IMPROVEMENT OF WATER SUPPLY SYSTEMS OF THE SETTLEMENTS OF KOTAYK REGION L2860-ICB-1-03: ABOVYAN, CHARENTSAVAN, HRAZDAN, TSAGHKADZOR TOWNS AND KAGHSI, AKUNK, SOLAK VILLAGES INITIAL ENVIRONMENTAL EXAMINATION HGSN LLC, Director V. Hovasapyan Environmental expert K.Sahakyan Yerevan, July, 2015 Subproject IV Initial Environmental Examination 2 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Kotayk region TABLE OF CONTENTS 1.The Scope of Work ............................................................................................................ 4 2. Description of the Existing Water Supply and Sewage Systems ............................... 6 2.1. Description of the water supply systems ........................................................................... 6 2.2. Description of the sewerage system ................................................................................. 9 3. Geographical Location and Climate of the Settlements ............................................. 10 4. Biodiversity and Specially Protected Areas ................................................................. 11 5. Environmental Impact Assessment ............................................................................... 12 Appendix 1. Checklist for Quick Environmental Evaluation ........................................................ 13 Appendix 2: Checklist for Preliminary Climate Risk Screening .................................................. 16 Appendix 3. Kotayk subproject layout ........................................................................................ 17 Subproject IV Initial Environmental Examination 3 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Kotayk region 1.The Scope of Work The aim of this subcomponent of the subproject is the improvement of drinking water supply systems of Abovyan, Charentsavan, Hrazdan and Tsaghkadzor towns and its adjacent 3 rural settlements (Kaghsi, Akunk, Solak) in Kotayk Region, RA within the framework of the project. Priority has been given to the improvement of the water supply systems of the settlements. The works carred out for this purpose involve the following: Abovyan town - Construction and reconstruction of distribution network waterlines with polyethylene pipes of de40–de225 diameter and approximate total length of 3,63 km, - Replacement of entry lines together with water metering chambers of private houses, multi- apartment buildings, economic entities, - Installation of water supply chambers (6 pc), wedge valves on the entry lines (1pc) and construction and reconstruction of hydrant chambers (3pc). Charentsavan town - Construction and reconstruction of distribution network waterlines with polyethylene pipes of de40 – de250 diameter and approximate total length of 26km, - Replacement of entry lines with water metering chambers of 13 private houses, multi- apartment buildings, economic entities, - Construction and reconstruction of water supply (49 pc) and hydrant chambers (5 pc), as well as buried valve junctions (7 pc). Hrazdan town - Replacement of intra-neighborhood main pipelines of distribution network with polyethylene pipes of de100-de225 diameters and approximate total length of 19.5 km. - Replacement of entry lines of a total of 115 multi-apartment buildings with polyethylene pipes of de63-de100 diameters and approximate total length of 4,3 km, - Replacement of entry lines of a total of 365 private houses and 142 economic entities with polyethylene pipes of de20-de32 diameters and a total length of 4,4 km. Tsaghkadzor town - Construction of external pipeline with polyethylene pipes of de250 diameter and approximate total length of 3,44 km, - Demolition of the existing DRR of Writers’ House with a capacity of 400m3, which is in the state of failure, and construction of new one (W=1000m3), - Replacement of distribution network with polyethylene pipes of de63-de160 diameters and approximate total length of 3 km, - Dismantling 2 pumps with the capacities of Q=30l/sec in “Makravan-2” pumping station and installation of more powerful new pumps Q=50l/sec. Akunk village - Replacement of distribution network with polyethylene pipes of de63-de160 diameters and approximate total length of 10 km, - Construction of a new pipeline from the pumping station to the DRR with a capacity of 500m3 and approximate length of 1,2km, - Construction of entry lines of 465 private houses in total, Subproject IV Initial Environmental Examination 4 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Kotayk region - Reconstruction of water supply deep well. Kaghsi village - Replacement of intra-neighborhood main pipelines of distribution network with polyethylene pipes of de63-de100 diameters and approximate total length of 10,5 km, - Replacement of the entry lines of a total of 115 multi-apartment buildings, polyethylene pipes of de63-de100 diameters, approximate total length of 4,3 km, - Replacement of entry lines of 295 private houses in total, with polyethylene pipes of de20- de32 diameters and approximate total length of 2,4 km. Solak village - Replacement of intra-neighborhood main waterlines of distribution network with polyethylene pipes of de40-de200 diameters, approximate total length of 8 km, - Replacement of entry lines of 180 private houses, economic entities with polyethylene pipes of de20-de32 diameters, approximate total length of 1,8 km (with replacement of water metering chambers), - Construction and reconstruction of water supply chambers (4 pieces) and hydrant chambers (3 pieces). Brief description of the works Table 1. Works M/U Solak Akunk Kaghsi . TOTAL . v Tsaghadzor v v razdan Ծ Abovyan Charentsavan . t . H . t t t Repair of pump station set - - - 1 1 - - 2 Reconstruction of DRR m3 - - - 1000 - - - 1000 Reconstruction of water lm - - - 3440 1200 - - 4640 main Reconstruction of water supply internal network with de40-de280 diameter lm 19500 3630 25752 3000 9900 8034 10500 80316 pipes, washing, testing and disinfection Construction of entry lines of private houses and business entities connections with set 480 30 13 30 465 180 295 1493 constructing water metering chambers Deep well area fencing lm - - 42 - 42 Construction and set reconstruction of water - 9 54 - 1 6 - 70 supply and fire hydrant chambers Construction of valve and set buried valve - 1 7 - - 12 - 20 junctions Subproject IV Initial Environmental Examination 5 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Kotayk region Population of the subproject as of 01.01.2014 was 55348 people in Abovyan town, 30684 in Charentsavan town, 56400 people in Hrazdan town, 3500 people in Tsaghkadzor town, 2550 people in Kaghsi village, 2200 people in Akunk village and 2483 people in Solak village.The total number of consumers is more than 30 000 households, 1551 of which are the consumers of the rural settlements. According to the data published by the "Demographic Handbook of Armenia, 2012", the population growth is 0.4%. 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 water supply and sewage systems of all the settlements included in the Subproject are served by “Armwatersewerage” CJSC. Hrazdan and Tsaghkadzor towns, Kaghsi and Solak rural communities are located in the district of Hrazdan in Kotayk Region, where the total level of leakages is approximately 87%. Abovyan town and Akunk village are located in the district of Abovyan in
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