Irrigation water quality impacts the agro-ecosystem, human health, and the overall well-being of the environment. The purpose of this study was to investigate upstream municipal and industrial pollution impacts on irrigated farming and ecosystem health. The suitability indices and Heavy Metal Pollution Index methods have been used to identify the contamination extent and corresponding spatial and seasonal variability. Samples were collected twice per annum, i.e., during the low-flow season and high-flow season (rainy season) in the 2022/23 year. Results demonstrate that metal pollution is a serious concern that needs upstream quality monitoring.
Water Quality
Rolling-out rural water regulation in Kenya: a review of progress and key processes
This document discusses the need for step-wise progression towards implementing the Guideline for the management of rural water and sanitation services published by Wasreb, Kenya’s water regulator in 2019. It combines insight from engagements with Wasreb, rural water service providers, and other stakeholders to identify where there is a need to develop, strengthen and/or clarify key processes.
Balancing growth and river protection in Bangladesh’s most important export industries
Balancing economic growth and river protection is a significant undertaking, but not an impossible one. This policy paper addresses the environmental, social, and regulatory complexities surrounding industrial production in Bangladesh. It examines how power dynamics in global supply chains influence state-market regulatory relationships and provides recommendations to strengthen state regulatory capacity, enhance civil society participation in regulatory processes, and strengthen public-private partnerships through global-local alignment.
Ten years of REACH Kenya
A brief overview of work by the REACH programme in Kenya on interlinked groundwater systems, institutions, water quality management and reducing inequalities, illustrating milestones in the Kitui and Turkana Water Security Observatories.
Rethinking responses to the world’s water crises
This perspective paper in Nature Sustainability reframes responses to mitigating the world’s water crises using a ‘beyond growth’ framing. Beyond growth is systems thinking that prioritizes the most disadvantaged. It seeks to decouple economic growth from environmental degradation by overcoming policy capture and inertia and by fostering place-based and justice-principled institutional changes.
Assessing flooding extent and potential exposure to river pollution from urbanizing peripheral rivers within Greater Dhaka watershed
This study looked into the water quality and flooding situation of Greater Dhaka for two successive monsoons through extensive river sampling coupled with the estimation of flooded area and exposed population using remote sensing tools.
REACH Story of Change: Cleaning the tap: Tap hygiene for safer drinking water
Water use behaviour impacts the hygiene of water collection points which can therefore impact water quality. While previous research has focused largely on household hygiene, REACH research has demonstrated how a systematic gap between engineering and hygiene considerations in the water sector is reducing access to safe drinking water. This Story of Change explores how regular cleaning of water point spouts and taps in Bangladesh could substantially reduce the number of people who lack access to uncontaminated drinking water (currently estimated to be between 2-4 billion people worldwide).
Water–Energy Nexus-Based Optimization of the Water Supply Infrastructure in a Dryland Urban Setting
Managing water supply systems is essential for developing countries to face climate variability in dryland settings. However, high energy costs from pumping, water loss due to aging infrastructure, and increased demand from population growth can exacerbate this challenge. In response, this study proposes a methodology that optimizes a Water Distribution Network (WDN) and its management, within the dryland urban setting of Lodwar, Kenya. The findings highlight the potential of WEN-based solutions to enhance the efficiency and sustainability of data-scarce water utilities in dryland ecosystems.
REACH Story of Change: Monitoring and modelling river water quality to protect Dhaka’s river system
This Story of Change describes the establishment of an advanced river water quality modelling system in Dhaka. The system allows decisionmakers to assess the potential impacts of current activities and future growth on river health, and to explore strategies for mitigation such as improved industrial wastewater management and new sewage treatment plants. Ready Made Garment Industry actors have engaged with the model to understand and respond to pollution from their factories.
REACH Story of Change: Improving water security in Ethiopia through integrated use of surface and groundwater resources
As one of Africa’s fastest growing cities, Addis Ababa’s demand for water has sky-rocketed over recent decades due to population growth, increased per capita consumption, rural to urban migration, and growing water demand from industry. Water supplies across the city are already struggling to meet demand, with regularly interruptions to water services exacerbating inequities. This Story of Change explores the range of methodologies that REACH has applied to examine the implications of climate and population growth for Addis Ababa’s water supply. Of particular focus is a first-of-its-kind dynamic water allocation model which integrates both surface and groundwater resources.
