Initial Environmental Examination
Loan 2860 (SF) August 2015
ARM: Water Supply and Sanitation Sector Project – Additional Financing Improvement of Tavush Region Settlements Water Supply Systems
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.
FUNDED BY ASIAN DEVELOPMENT BANK
WATER SUPPLY AND SANITATION SECTOR PROJECT - ADDITIONAL FINANCING
Date of preparation 17/01/2014 Date of revision 31/08/2015
Subproject V IMPROVEMENT OF THE WATER SUPPLY SYSTEMS OF THE SETTLEMENTS OF TAVUSH REGION
L2860-ICB-1-05 DILIJAN, NOYEMBERYAN, BERD TOWNS AND BAGRATASHEN, PTHGAVAN, ZORAKAN, BERDAVAN VILLAGES
INITIAL ENVIRONMENTAL EXAMINATION
Yerevan, August, 2015
HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Tavush region
FUNDED BY ASIAN DEVELOPMENT BANK
WATER SUPPLY AND SANITATION SECTOR PROJECT - ADDITIONAL FINANCING
Subproject V IMPROVEMENT OF THE WATER SUPPLY SYSTEMS OF THE SETTLEMENTS OF TAVUSH REGION
L2860-ICB-1-05 DILIJAN, NOYEMBERYAN, BERD TOWNS AND BAGRATASHEN, PTHGAVAN, ZORAKAN, BERDAVAN VILLAGES
INITIAL ENVIRONMENTAL EXAMINATION
HGSN LLC, Director V. Hovasapyan
Environmental expert K. Sahakyan
Yerevan, August, 2015
Subproject V Initial Environmental Examination 2 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Tavush region
TABLE OF CONTENTS
1. The Scope of Work ...... 4 2. Description of the Existing Water Supply and Sewage Systems ...... 5 2.1. Description of the water supply systems ...... 5
2.2. Description of the sewage system ...... 7
3. Geographical Location and Climate of the Settlements ...... 8 4. Biodiversity and Specially Protected Areas ...... 9 5. Initial Environmental Evaluation ...... 10 Appendix 1. Checklist for Quick Environmental Evaluation ...... 11 Appendix 2: Checklist for Preliminary Climate Risk Screening ...... 14 Appendix 3. Schematic Map of the Subproject ...... 15 Appendix 3.1. Spitakajur drainage system of Dilijan town ...... 16 Appendix 3.2. Bagratashen, Ptghavan and Zorakan villages ...... 17 Appendix 3.3. External water conduits* ...... 18
ABBREVIATION LIST ADB Asian Development Bank EBRD European Bank for Reconstruction and Development WTP Water Treatment Plant DRR Daily Regulation Reservoir
Subproject V Initial Environmental Examination 3 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Tavush region
1. The Scope of Work The aim of this subcomponent is the improvement of drinking water supply systems of Dilijan, Noyemberyan, Berd towns and Bagratashen, Ptghavan, Zorakan, Berdavan villages in Tavush region, RA within the framework of the project. Priority is given to the improvement of the water supply systems of the settlements. The works carried out for this purpose involve the following:
Noyemberyan and Berd towns . Reconstruction of external pipeline with de200-de300 steel pipes, L=5300m, . Construction of polyethylene waterlines with de50-de200 polyethylene waterlines, L=35045m length in total, . Construction of water metering units of 2120 consumers in total and entry lines of private houses with de20-32 polyethylene pipes, . Construction of 28 valve chambers in total, . Construction of 62 buried valve junctions in total, . Repairing of Daily Regulation Reservoirs (DRRs) with capacities of 250 m3 and 500m3, construction of chlorination plant.
Dilijan town (Takhta neighborhood) . Reconstruction of drainage pipes with a total length of L=600.0 m of Spitakajur river drainage system by laying de 225-de 315 diameter polyethylene pipes (250m of which is performed with de 315 diameter pipes),
Bagratashen village . Construction of external waterline with DN150 diameter steel pipes, L=580.0 m total length, . Reconstruction of the existing V=400m3 DRR, . Reconstruction/construction of polyethylene pipes of L=8450.0 m total length, de40-de200 diameter, . Replacement of entry lines of 651 private houses, set-up of water metering chambers, . Construction/reconstruction of hydrant chambers (2 pieces), valve (7 pieces) and buried valve (3 pieces) junctions.
Ptghavan village . Construction of external conduit of L=475.0 m total length with DN150 diameter steel pipes, . Reconstruction of the existing V=160m3 DRR, . Reconstruction and construction of polyethylene pipes of L=5550.0 m total length, de50- de160 diameter, . Replacement of entry lines of 187 private houses, set-up of water metering chambers, . Construction and reconstruction of hydrant chamber (1 piece) and valve junctions (4 pieces).
Zorakan village . Construction of external waterline of L=1070.0 m total length with de110 diameter polyethylene pipes, . Construction of valve junction (1 piece),
Subproject V Initial Environmental Examination 4 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Tavush region
. Construction of pump station.
Berdavan village . Repairing of DRRs with capacities of 120m3 and 160m3, . Construction of de50-de90 polyethylene waterlines in the distribution network, 3980,0 m approximate total length, . Construction of entry lines of 430 private houses, installing water metering chambers. . Construction of hydrant chamber (2 piece) valve chambers (6 pieces) and buried valve junctions (1 pieces), Population number of Dilijan, Noyemberyan and Berd towns as of 01.01.2014 is 28430. Population of Dilijan is 14300 people, population of Noyemberyan is 5630 people and that of Berd is 8500 people. Population of rural communities within the project is 8480 people1. Population in Bagratashen is 2859 people, population in Ptghavan is 1115 people, population in Zorakan is 1041 people and that of Berdavan is 3465.
According to the data published by the "Demographic Handbook of Armenia, 2012", the population growth is 0.43%.
Due to the project implementation the consumers of the settlements covered by the project are to be provided with drinking water quality and stable water supply.
2. Description of the Existing Water Supply and Sewage Systems 2.1. Description of the water supply systems
Water supply systems of 3 towns (Dilijan, Noyemberyan, Berd) and 1 village (Berdavan) are served by AWS CJSC, and the systems of Bagratashen, Ptghavan and Zorakan villages are served by local self-government bodies.
Water supply system of Dilijan town operates mainly through structures of 1 catchment and 1 river water intake from Aghstev River. Water intake from the river is also treated in 3 treatment plants.
- “Golovino” treatment plant-with a capacity of 55 l/sec is situated in the southern higher part of the town and was constructed in 1962. In 2010 World Bank financed its repairing. From here the water is accumulated in the DRRs of “Golovino” (V=1000m3) and “Takhta” (V=1000m3), afterwards it is transmitted to the distribution network.
- “Frolovo” treatment plant–with a capacity of 90 l/sec and constructed in 1989. In 2010 World Bank financed its repairing. From here water is accumulated in “Kaghni Khach” (V=2x500m3) DRRs, afterwards it is transmitted to the distribution network.
- “Bldan” treatment plant - with a capacity of 50 l/sec, constructed in 1971. From here the water is accumulated in “Kalinin” (V=1000m3) DRR, afterwards it is transmitted to the distribution network.
- “Jilu Tala” catchment structure (constructed in 1988), from where water is transmitted to the distribution network of the town through 75-100mm steel pipes.
- “Shamakhyan” river water intake constructed in 1962.
1 Demographic Database: http://www.armstat.am
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The water supply system of the town is constructed in 1960s. Despite of the works implemented in recent years the significant part of the pipelines is still in technically bad condition. There are often breakdowns, which result in great leakages. Major part of valve chambers is in failure state.
Water supply of Noyemberyan town is provided from “Berdavan” deep wells by a mechanical method and “Gij Sar”, “Vararaghbyur”, “Spitakashen”, “Srotsahank” springs by gravity.
The water taken from “Gij Sar” springs is transmitted to the DRRs through pipeline with a diameter of Փ150-250mm and approximate length of 56km. The DRRs have a sanitary zone, in the area of which there is a chlorination plant house and a guard house. Some sections of “Gij Sar” pipeline are worn-out and subject to replacement.
Waters from “Vararaghbyur” are also collected in the DRRs, from which only one is operating.
The discharged water of “Spitakashen” springs is supplied to the town through Փ125mm pipeline with approximate length of 5-6km, which is in a good condition.
Water supply system of Noyemberyan town, including approximately 5 km long Փ110mm pipe and a catchment structure, is designed and constructed from “Srtotsahank” springs by AWS CJSC on its own account.
Water supply of Berd town is mainly provided from Tavush, Hakhum and Khndzorut rivers. Water taken from the rivers is treated in the treatment plant of Berd town. The water flows into the treatment plant through 300mm pipes, where it undergoes mechanical and biological treatment and aոd then reaches the consumers. Water supply of the town is also provided from “Sharape”, “Sako”, “Miji” and other springs. In 2009-2011 the Asian Development Bank financed the capital repair of the treatment plant of Berd town and modernization work of “Berdavan” pump station. The water is transmitted from the catchment structure constructed in Sharape gully to the distribution network of the town through Փ150-50mm cast iron pipes.
Water supply of Bagratashen, Ptghavan, Berdavan villages is provided from the deep wells in the area of the villages.
Water supply of Zorakan village is provided from 2 springs in its area; the 2 springs provide 0,5 l/s water in total. It does not cover the water demand of the village.
Water supply distribution networks of the villages included in the subproject are technically worn-out and deteriorated. There are considerable leakages. The distribution networks are characterized with lack of water and pressure. Some of the DRRs is dilapidated and doesn’t operate resulting in distribution of the water directly to the distribution network.
In the towns of Berd and Noyemberyan some sections of distribution network have been reconstructed and new waterlines have been constructed financed by the World Bank and Asian Devlopment Bank loan programs.
Currently capital repair of the distribution network (Shamkhyan neighborhood) is implemented financed by EBRD: Approximately 10km waterlines and a new pump station have been constructed. 2 DRRs are constructed and reconstructed correspondingly with 300m3 and 500m3 capacities. However, these investments are not sufficient for the complete improvement of the
Subproject V Initial Environmental Examination 6 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Tavush region water supply system of Dilijan town, as there are still a number of problems, which require additional investments and engineering solutions.
2.2. Description of the sewage system
Almost the whole town of Diljan is provided with sewage system. The sewage treatment plant which is situated to the north-east from the town at 15.0km distance in the territory of Haghartsin village was an unfinished building. Waste waters were removed through the collectors and discharged into Aghstev River system without treatment.
It should be noted that currently basic repairing works of the town waste water system are carried out with the construction of about 6 km length sewage lines and collectors of 200- 600mm diameter with their inspection pits correspondingly. The sewage treatment plant is also being repaired.
At present there are also capital repair works of the sewage system ongoing in Dilijan funded by EBRD including approximately 6 km long sewage lines and collectors with inspection pits. The sewage treatment plant is also being repaired.
In the towns of Noyemberyan and Berd there are operating sewage systems. The wastewater removed from the systems flow into Yelak and Tavush rivers without treatment, as the existing local treatment plants do not operate.
Table 1. Mean water demand of settlements
Design Average daily design water Water use rate, N Settlement population demand (2040) l/day, man number, man m3/day l/sec 1. t.Dilijan 15988 210 3357 38.9 2. v. Bagratashen 3196 200 639 7.4 3. v. Ptghavan 1247 200 249 2.9 4. v. Zorakan 1164 200 233 2.7 5. v. Berdavan 3874 200 775 9.0
Table 2. Design water demands
Design water demand
,
sv.
մ
max
β
x x N av.daily
(l/sec)
(l/sec)
max
(l/sec)
=1.3 ), Q
hourly
Settlement
max.h.
hourl
=αα
day
coefficient,
=210/200l/day,
h
Max.average Q
n
man), Q
Average daily,
K
Maximalhourly
(K
Population number
Hour irregularity
(q
1. t.Dilijan 15988 38,9 50,6 1,56 78,9 2. v. Bagratashen 3196 7,4 9,6 1,95 18,8 3. v. Ptghavan 1247 2,9 3,8 2,34 8,8 4. v. Zorakan 1164 2,7 3,5 2,34 8,2 5. v. Berdavan 3874 9,0 11,7 1,95 22,8 Total 25469 60,9 79,2 10,14 137,5
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Table 3. Designed discharges Design discharges Design (qÏ=130175 l/day, man qÏ=175l/day. man) Settlement population Q av. Qav. Q max.daily Q max.daily Qmax.daily number, man daily hour 3 Kgen. max.hour, max.sec, 3 3 m /h 3 m /day m /h m /h l/sec t.Dilijan 15988 2558,1 106,6 138,6 1,6 170,5 47,4 v. 3196 511,4 21,3 27,7 1,9 40,5 11,2 Bagratashen v. Ptghavan 1247 199,5 8,3 10,8 2,0 16,6 4,6 v. Zorakan 1164 186,2 7,8 10,1 2,0 15,5 4,3 v. Berdavan 3874 619,8 25,8 33,6 1,85 47,8 13,3 Total 25469 4075,0 169,8 220,7 290,9 80,8 In all the villages covered by the subproject there are no sewage systems and the inhabitants use yard toilets or bathrooms connected to the wastewater collection chambers constructed in their private territories.
3. Geographical Location and Climate of the Settlements All the settlements covered by the subproject belong to Tavush region, RA. The region is located in the north-east of RA and occupies 2704 m2 surface area. The town of Dilijan is situated in the south-western part of Tavush region, 36km away to the south-west of regional centre Ijevan on the bank of Aghstev River. The distance from capital Yerevan is 99 km. The town of Noyemberyan is located in the southern part of Tavush region, at a distance of 187km from Yerevan, and the town of Berd is in the south-eastern part of the region, at a distance of 202km from Yerevan. The centre is Ijevan town, which is 112km away from Yerevan. All the four village settlements belong to the district of Noyemberyan. The absolute elevations of the settlements vary within 820-900mm. The region is characterized with moderately temperate warm summer and mild, windless winter. The annual average temperature of the air is +100C. The absolute maximum temperature reaches +40օC, and the absolute minimum is•230C. The average annual atmospheric precipitations are 500-580 mm, relative humidity fluctuates 76•79%. The thickness of the snow cover reaches 35cm. The soil freezing depth is 0.43 meters depending on the absolute elevation. Winds with 2.6m/s speed prevail in the western and north-western directions. The observed area in Tavush region is situated in low forested, average mountainous and beyond the wood low mountainous landscape zone. The relief of the area is formed by sediments of Aghstev River originating from the northern slope of Pambak mountain chain and its streamlets. As a result of the cut surface of the area the settlements are located on the slopes of mountains. From the geomorphologic point of view the area represents low mountains, escarpments and foothills with eroded, severely dissected relief. Land forms of water erosion and water accumulation are presented partially with rocky slopes, severely dissected V-shaped, sometimes box-shaped valleys. Inclinations typical to the slopes reach 20•300 and 30•400. The flood-plain, low escarpments and inclined slopes are used as pastures, and the slopes with fewer gradients are covered with valuable agricultural lands. The geological structure consists of both rock and surface sediments. Rock and half-rocks are mainly presented with porphyrites, argillaceous slates, tuffs, conglomerates, and surface
Subproject V Initial Environmental Examination 8 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Tavush region
sediments are presented with sand fillers of crushed stone-boulder rocks, the capacity of which reaches 2.0•8.0 meters. From hydrogeological point of view the area is rich with ground waters. The existence of underground waters is conditioned by rocks of folded block structure. Ground waters are discovered at a depth of 0.5•2.5m. From exogenous-geological phenomena there is weakly linear surface erosion, water logging due to atmospheric precipitations, deepening and changing of the river bed, in some places there is stone falling, land slide, etc. The region has 0.2g horizontal acceleration of the ground and is in the region of possible 8 scale earthquakes.
4. Biodiversity and Specially Protected Areas Sandy, loamy sand and carbonate soil layers formed on contemporary alluvial-proluvial sediments in the region are presented with forest umber-brown and gray soils. Umber-brown soils are characterized with lush vegetation and are used for horticultural purposes. And forest gray soils are mainly spread under hornbeam-beech forests. Flora is presented with prevalence of wormwood and mountainous xerophytic species typical to the steppe landscape zone. Dominant species of wormwoods are Bromus types, Poa persica Trin, Ornithogolum montanum, Hordeum crinitum Desf, Tulipa biflora L, etc. Among mountainous xerophytes there are Paliurus spina Chrizti Mill, Spiraea crenata L., Iris aphelia L., Astragalus laguras W., etc. Among useful wild species there is Brjonia alba, Juglans regia, Datura stramonium in the region. In the flora project area the types to be protected are Junipersus excalsa Polikarpos-reduced types, Eringium Wanaturi - disappearing, Iris Pseudocaucasica - rare, Lactuca Takhtadzani - rare, Salvia Grossheimii - rare, etc. Fauna typical to low mountainous steppes are common in the described region, though there are also species typical to the settlements out of the zone. Mammals are represented more with rodents, a part of which has an underground life behavior. Lizards and amphibians are small in number. In spring and autumn there are a lot of migrating types. The prevailing fauna types typical to this region and common everywhere in Armenia are Crocidura (white-toothed shrews), Canis lupus (wolf), Vulpes vulpes L. (fox) Cricetus auratus Nat. (golden hamster), Mucrotus arvalis Pall. (field mouse), Perdix perdix L.( partridge), Grus grus L. (crane), etc. The species needing protection in the described area Erinaceus auritas Gmelin - disappearing, Luscinia svecica occidentalis -disappearing, Gyps fulvus Hablize • Linnaeus - disappearing, Accipiter brevipes Seventzov - disappearing, Falis silvestris caucasika Satunin - disappearing, Ursus arctos Syriacus Hamprich et Ehrenberg - disappearing, Panthera pardus tullianus, Vipera raddei Boettger – in danger of disappearing. The last mentioned three are registered in the Red Books of RA and International Union for Protection of Nature (IUCN). In the project area there are no environmentally vulnerable or specially protected areas. In the region there is “Gandzakar” reserve, the border of which is 6km away from Berd town included in the project, and “Zikatar” reservoir 14km away from Noyemberyan town.
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Forests are among the natural values of Dilijan town. The town area is almost completely surrounded by forests. “Dilijan national park”, passing by the borderline, was established for the protection, enrichment of the fauna and flora, as well as creation of new species in the local conditions. In the area of the National Park there are also a number of historical-cultural monuments, Haghartsin, Jukhtak, Goshavank, Matosavank. Project implementation will not have any adverse impact on these areas, as the main work is to be done only in Spitakajur river drainage system. Although there are cultural and archaeological sites in all the settlements covered by the subproject, the project doesn’t affect the latter. They are mainly out of the inhabited areas of the settlements at an approximate distance of 1-5km.
5. Initial Environmental Evaluation Initial Environmental Examination (IEE) has revealed that no damage is expected to be caused to the landscape, flora, fauna, land and water resources of the area /project affected zone/ where works on improvement of the water supply systems will be impelemented. The sub-project will be implemented mainly in the built up areas of the settlements, and new areas will not be used for the purposes of work implementation.
As a result of the project, the disposal of old equipment and pipes as scrap metals is not anticipated. The old pipeline of internal system will be under operation until the end of construction works. At the moment when new pipeline considers ready (after being disinfected and tested), the old waterline will be cut-down and the new waterline will be put into operation. The old pipeline is the property of community and will remain under the discretion of community.
As to the preliminary environemntal inspection the sub-project was classified as B category project. Along with the Detailed Design an Environemntal Management Plan /EMP/ has to be elaborated for this project, which shall cover all the communities that are included in the Detailed Design.
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Appendix 1. Checklist for Quick Environmental Evaluation
Country/Project Water Supply and Sanitation Sector Project of RA Settlements title
Subdivision Subproject 5 –Dilijan, Noyemberyan, Berd towns and Bagratashen, Ptghavan, Zorakan, Berdavan villages of Tavush region, RA
Screening Questions Yes N/A No Remarks A. Project site Is the project area… 1. densely populated? X The two settlements included in the project are considered densely populated. 2. heavy with development/construction X Both settlements have urban development project activities ? documentation /master plans/.
3. adjacent to or within any environmentally X There are no environmentally sensible areas in the sensitive areas? subproject area. 4. cultural heritage? X In almost all the settlements there are historical- cultural monuments, although the project doesn’t affect. 5. protected area? X 10-13th century castles and monasteries are located 2-5km away from the town 6. marsh? X There are no marshes in the project implementation area? 7. mangrove? X There are no such areas in Armenia.
8. estuarine? X Armenia is situated in the upper stream of water intake basin and all the rivers (except Sevan basin) flow out of the territory of the country. 9. buffer zone of protected area? X 10. special area for protecting biodiversity? X “Dilijan” national park is located within the borderline of Dilijan town. “Gandzakar” reserve is located 6km away from Berd town, and “Zikatar” reserve is 14km away from Noyemberyan town. 11. bay? X B. Potential Environmental Impacts Will the Project cause… . pollution of raw water supply from upstream X Water supply of the settlements is provided from wastewater discharge from communities, underground sources. industries, agriculture, and soil erosion runoff?
. impairment of historical/cultural X Almost all the settlements have cultural heritage monuments/areas and loss/damage to monuments, but the project does not affect the these sites? latter. . hazard of land subsidence caused by X The project doesn’t foresee ground water intake excessive ground water pumping? that is why project implementation may not cause land subsidence. . social conflicts arising from displacement of X Not anticipated. communities ?
. conflicts in abstraction of raw water for X In the frame of the subproject potable water supply water supply with other beneficial water will be done from underground sources. The uses for surface and ground waters? drinking water shall not be used for irrigation or any other purposes.
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Screening Questions Yes N/A No Remarks . unsatisfactory raw water supply (e.g. X In the frame of the subproject potable water supply excessive pathogens or mineral will be done from underground sources, after constituents)? treatment.
. delivery of unsafe water to distribution X system?
. inadequate protection of intake works or X Water intakes and chambers covered by the project wells, leading to pollution of water supply? are fenced and have sanitary zones.
. over pumping of ground water, leading to X The design doesn’t foresee pumping of ground salinization and ground subsidence? water, that is why the implementation of the design cannot result in salinization and ground subsidence.
. excessive algal growth in storage reservoir? X To exclude the algal growth, hermiticity and other required conditions are provided in the reservoirs. . increase in production of sewage beyond X Village communities do not have sewage treatment capabilities of community facilities? systems. Currently capital repairing works of the wastewater system are ongoing in Dilijan town financed by EBRD (European Bank for Reconstruction and Development), approximately 6km long sewage lines and collectors with inspection pits are constructed. Sewage treatment plant is constructed. . inadequate disposal of sludge from water X It is not applicable for the subproject. treatment plants?
. inadequate buffer zone around pumping X The pumping station designed within the project will and treatment plants to alleviate noise and be isolated with a fence of sanitary zone. other possible nuisances and protect facilities?
. impairments associated with transmission X Impairment associated with access roads, and lines and access roads? crossings with transmission lines will be carried out according to the required norms. . health hazards arising from inadequate X Design documents of units foreseen for receiving, design of facilities for receiving, storing, and protection of chlorine and other dangerous handling of chlorine and other hazardous chemicals are prepared in accordance with the chemicals. requirements of current norms. . health and safety hazards to workers from X While working with chlorine or other contaminants handling and management of chlorine used prescribed technological procedures shall be for disinfection, other contaminants, and followed. Employees receive training periodically. biological and physical hazards during project construction and operation? . dislocation or involuntary resettlement of X Not foreseen people? . disproportionate impacts on the poor, X Not foreseen women and children, indigenous peoples or other vulnerable groups? . noise and dust from construction activities? X Mitigation measures will be included in EMP/Environmental Management Plan/. . increased road traffic due to interference of X Not significant increase is predicted for the construction activities? construction period .Due to the mitigation measures traffic will be regulated as much as possible. . continuing soil erosion/silt runoff from X Particular measures for the organization of the construction operations? construction will be provided in EMP. . delivery of unsafe water due to poor O&M X Issue of mud accumulation in filters is not treatment processes (especially mud applicable. Monitoring of chlorine residuals in accumulations in filters) and inadequate distribution system will be performed according to chlorination due to lack of adequate procedure established by RA MoH. monitoring of chlorine residuals in distribution systems? . delivery of water to distribution system, X During operation of this system corrective which is corrosive due to inadequate chemicals for water treatment are not used. attention to feeding of corrective chemicals?
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Screening Questions Yes N/A No Remarks . accidental leakage of chlorine gas? X Not foreseen.
. excessive abstraction of water affecting X The design of the system reconstruction is downstream water users? developed to exclude such cases. . competing uses of water? X The project aims to soften competition in water uses. . increased sewage flow due to increased X water supply?
. increased amount of household sewages X Wastewater treatment plants in the project (wastewater from cooking and laundry) and settlements do not operate. The newly constructed sludge from wastewater treatment plant? wastewater treatment plant in Dilijan town will be equipped with corresponding technologies for the solution of this issue. . large population influx during project X The project refers to the reconstruction of the construction and operation that causes existing structures; no new social impact is increased burden on social infrastructure foreseen. The labor force is usually employed from and services (such as water supply and the same settlement; no influx is expected. sanitation systems)? . social conflicts if workers from other regions X The project encourages the use of local labor force. or countries are hired?
. risks to community health and safety due to X If safety measures of explosives, fuels and other the transport, storage, and use and/or chemicals used within the framework of the project disposal of materials such as explosives, are maintained, risks will be minimized. Mitigation fuel and other chemicals during operation measures are foreseen in the EMP. and construction? . community safety risks due to both X If safety measures of associated with the transport, accidental and natural hazards, especially storage and use of explosives, fuel and other where the structural elements or chemicals used within the framework of the project components of the project are accessible to are maintained, community safety risks due to both members of the affected community or accidental and natural hazards will be minimized. where their failure could result in injury to the community throughout project construction, operation and decommissioning?
Climate Change and Disaster Risk Questions Yes No Notes
The following questions do not concern the ecological classification. They are included in this checklist to help identify potential climate and disaster risks. Is the Project area subject to hazards such as earthquakes, X Armenia is situated in an active floods, landslides, tropical cyclone winds, storm surges, tsunami tectonic zone and can undergo or volcanic eruptions and climate changes? dangers with all the possible consequences Could changes in temperature, precipitation, or extreme events X The shortage of precipitations can patterns over the Project lifespan affect technical or financial cause water shortages in the sustainability (e.g., changes in rainfall patterns disrupt reliability of resources which will result in changes water supply; sea level rise creates salinity intrusion into proposed of the water supply stability water supply source)?
Are there any demographic or socio-economic aspects of the X Project area that are already vulnerable (e.g., high incidence of marginalized populations, rural-urban migrants, illegal settlements, ethnic minorities, women or children)?
Could the Project potentially increase the climate or disaster X vulnerability of the surrounding area (e.g., by using water from a vulnerable source that is relied upon by many user groups, or encouraging settlement in earthquake zones)?
* Hazards are potentially damaging physical events.
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Appendix 2: Checklist for Preliminary Climate Risk Screening
Country/Project Title: Armenia/ Water Supply and Sanitation Sector Project - Additional Financing Sector: Water supply and other municipal infrastructure and services Subsector: Urban policy, institutional and capacity development, Urban water supply Division/Department: Environmental and Social Impact
Screening Questions Score Remarks2 Location and Is siting and/or routing of the project (or its 0 N/A for this project Design of components) likely to be affected by climate project conditions including extreme weather related events such as floods, droughts, storms, landslides? Would the project design (e.g. the clearance 0 N/A for this project for bridges) need to consider any hydro- meteorological parameters (e.g., sea-level, peak river flow, reliable water level, peak wind speed etc)? Materials and Would weather, current and likely future 1 Selection of construction Maintenance climate conditions (e.g. prevailing humidity materials and design level, temperature contrast between hot decisions (ex. Prior summer days and cold winter days, exposure identification of soil freezing to wind and humidity hydro-meteorological depth) should be made parameters likely affect the selection of project taking into account the inputs over the life of project outputs (e.g. climatic conditions of construction material)? settlements, thus mitigating the risks. Would weather, current and likely future 0 N/A for this project climate conditions, and related extreme events likely affect the maintenance (scheduling and cost) of project output(s)? Performance Would weather/climate conditions and related 0 N/A for this project of project extreme events likely affect the performance outputs (e.g. annual power production) of project output(s) (e.g. hydro-power generation facilities) throughout their design life time? Options for answers and corresponding score are provided below: Response Score Not Likely 0 Likely 1 Very Likely 2 Responses when added that provide a score of 0 will be considered low risk project. If adding all responses will result to a score of 1-4 and that no score of 2 was given to any single response, the project will be assigned a medium risk category. A total score of 5 or more (which include providing a score of 1 in all responses) or a 2 in any single response, will be categorized as high risk project.
Result of Initial Screening (Low, Medium, High): _1____ Medium ______
Other comments: ______
2 If possible, provide details on the sensitivity of project components to climate conditions, such as how climate parameters are considered in design standards for infrastructure components, how changes in key climate parameters and sea level might affect the siting/routing of project, the selection of construction material and/or scheduling, performances and/or the maintenance cost/scheduling of project outputs.
Subproject V Initial Environmental Examination 14 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Tavush region
Appendix 3. Schematic Map of the Subproject
Subproject V Initial Environmental Examination 15 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Tavush region
Appendix 3.1. Spitakajur drainage system of Dilijan town
Subproject V Initial Environmental Examination 16 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Tavush region
Appendix 3.2. Bagratashen, Ptghavan and Zorakan villages
Subproject V Initial Environmental Examination 17 HGSN LLC -JINJ Ltd Improvement of the water supply systems of the settlements of Tavush region
Appendix 3.3. External water conduits*
*The existing external water conduit and its all sections designed for rehabilitation pass along inter-field roads
Subproject V Initial Environmental Examination 18