MONGOLIA, DARKHAN CITY, WATER SUPPLY MANAGEMENT PROJECT
PROJECT OVERALL
Document name:
Enhancing Water Supply Management in Darkhan City
MISSION:
The objective of the project is to enhance the working and living conditions of the population in Darkhan, Mongolia, a key hub for food, agriculture, and industry, by fostering a healthy and safe environment. The project seeks to promote the sustainable utilization of environmental, ecological, and groundwater resources, while simultaneously boosting economic benefits. Additionally, the initiative aims to rehabilitate existing pipelines and improve comprehensive management systems, thereby optimizing construction timelines in a region characterized by perennial frost and extreme climatic conditions.
PURPOSE:
This project aims to upgrade 32,000 meters of aging water supply infrastructure in Darkhan City, while enhancing management efficiency through the installation of 170 pressure-regulating valves within the water supply network.
Project Scope:
- Package 1: Partial Replacement of Aging and Damaged Water Supply Infrastructure
- Package 2: Installation of Pressure-Regulating Valves within the Water Supply Network
RATIONAL:
Darkhan City sources clean drinking water from a depth of 70 meters and distributes it to consumers via a centralized network. However, 50 percent of the city’s clean water infrastructure consists of outdated and damaged pipelines. The deterioration and overuse of this water supply system, coupled with pipeline damage and the open discharge of clean water, contribute to the depletion of groundwater resources and create significant challenges for the population’s quality of life. To address these issues, it is essential to introduce economically viable, environmentally sustainable, time-efficient, and durable ductile iron pipes in the city, particularly in areas with dense building clusters. This solution will not only enhance the reliability of the water supply but also ensure long-term sustainability in the management of clean water resources.
As part of Mongolia’s budgeted investments and projects, efforts are underway to partially replace aging and damaged pipelines. However, water losses resulting from damage caused by pressure fluctuations in the clean water pipelines are leading to substantial environmental and economic impacts. To mitigate these issues, it is crucial to install pressure-regulating valves within the pipeline network. This will help control pressure variations, reduce water loss, and prevent further damage to the infrastructure, thereby improving both the sustainability and efficiency of the water supply system.
PROJECT BENEFICIARS:
Darkhan, the second-largest city in Mongolia after Ulaanbaatar, is projected to have a population of 110,544 residents across 29,803 households in 18 districts by 2024, according to the National Statistics Office.
Given this demographic forecast, the beneficiaries of the strategic upgrade to the water supply network—essential for meeting the primary water needs of both the population and enterprises in the region—will encompass the entire population of Darkhan. This upgrade is crucial for ensuring a sustainable and reliable water supply for all residents and businesses in the city.
ACHIEVEMENT OF GOALS:
The total length of the water transmission and distribution pipelines in Darkhan City spans 171 km, with 50 percent of these pipelines being 40 to 60 years old, deteriorated, and prone to water leakage.
Under the scope of the Package-1 project, 18.7 percent, or 32 km, of the city’s aging and frequently damaged water pipeline network will be replaced with durable ductile iron pipes. This replacement will address issues related to water leakage and infrastructure wear, improving the reliability and efficiency of the city’s water supply system.
s part of Package-2, a total of 170 pressure-regulating valves, ranging in diameter from 30 to 600 mm, will be installed along the entire length of Darkhan City’s water supply network. These valves have been carefully selected based on calculations using the EpaNet pressure difference calculation program and will be integrated with a remote control system to monitor pressure variations via the SCADA system. Additionally, a data transmission device will be included to facilitate real-time monitoring.
This installation is crucial for reducing water loss and mitigating the risk of pipeline damage caused by pressure overloads. Furthermore, the load on the water supply network can be continuously monitored at the dispatch center, providing valuable data to optimize the network’s operation and ensuring the long-term sustainability of the water supply system. The installation of these pressure-regulating valves plays a critical role in improving the efficiency and reliability of the city’s water infrastructure.
DATE AND DURATION:
The project is approved and the duration of the work is 2.5 years.
BUDGET:
The total budget required for the project is $18,400,519.
STAKEHOLDERS:
- Ministry of Finance of Mongolia
- Ministry of Urban Development, Construction and Housing
- Darkhan-Uul province Governor’s Office
- Darkhan soum Governor’s Office
