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Access the evidence you need to make informed decisions. Our Knowledge Hub is a curated library of the latest research, case studies, and practical guides from leading experts in the WASH sector. Deepen your understanding of critical challenges and emerging best practices.

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Latest sync: September 3, 2026, 6:05am

Opportunities to advance water safety through regulation of rural water services

Discussion Brief
The document discusses the challenges and opportunities in regulating rural water safety, emphasizing the importance of providing safe drinking water in rural areas. It highlights the collaboration between various stakeholders, including academic institutions, government bodies, and professional water service providers, in developing results-based funding approaches to incentivize the delivery of safe water services. The need for flexible regulatory models to adapt to changing water service provisions, emerging water quality threats, and the proliferation of professional service providers managing small water systems is emphasized. The document also addresses the lag in drinking water safety in rural areas compared to urban areas, citing issues such as faecal and chemical contamination. It underscores the importance of regulations tailored to address the unique challenges faced in rural water service delivery, particularly in small water systems. Additionally, the document mentions the importance of water treatment options as part of advancing drinking water safety in rural areas.

Professionalizing Rural Water Desk Study

Desk Study
The Desk Study on Professionalizing Rural Water highlights the evolving approaches in managing rural water services, emphasizing trends and challenges faced in low- and middle-income countries. The study underscores the importance of transitioning from community-based management to more professionalized models, such as umbrella utilities and commercial utility mandates. It identifies gaps in knowledge regarding the performance of different management models and the external factors influencing their effectiveness. The report suggests that consolidation strategies may offer benefits but require significant public investments and sector reforms to realize improved services at lower costs.

Integrated District-level Water Quality and Scarcity Estimates for India

Discussion Brief
The document provides insights into district-level water quality and scarcity estimates for India, utilizing an integrated shapefile that combines data from various sources. It includes information on groundwater quality parameters, aquifer properties, and groundwater exploitation. The shapefile allows for visualization and querying to support decision-makers and stakeholders in analyzing water resources across India. The report does not mention specific solutions for water treatment or sanitation.

How to clean a tubewell: the effectiveness of three approaches in reducing coliform bacteria

Research Paper
The study conducted in rural Bangladesh highlights the significance of fecal contamination in deep tubewell water and the effectiveness of cleaning wells with a low-cost weak chlorine solution to improve water quality. Current local maintenance practices are found to be ineffective, emphasizing the need for improved cleaning and maintenance practices to enhance access to safe drinking water. The research suggests that disinfection of tubewells with chlorine reduces or eliminates contamination, indicating that the source of fecal contamination is likely not the groundwater source. Further research is recommended to understand the mechanisms of contamination introduction and to explore interventions for enhancing cleaning and maintenance practices. The study was funded by the Swedish Research Council Formas and conducted in collaboration with NGO Forum for Public Health in Bangladesh.

Rural Water Point Functionality Estimates and Associations: Evidence From Nine Countries in Sub-Saharan Africa and South Asia

Research Paper
The PDF discusses rural water point functionality estimates and associations in nine countries in Sub-Saharan Africa and South Asia. It highlights the presence of water committees in surveyed communities, factors associated with water point functionality, the need for standard definitions for piped water systems, and the implications for monitoring piped systems. The study emphasizes the importance of community management models and the evolving impact of management models on water point functionality. It also suggests the need for further research on the influence of different management models on water point functionality.

Reductions in Children’s Blood Lead Levels from a Drinking-Water Intervention in Madagascar, Sub-Saharan Africa

Research Paper
The study in Madagascar showed that replacing leaded pump components with nonleaded ones led to a significant decrease in aqueous lead concentrations in hand pumps.

Diatomaceous Earth Filtration for Drinking Water

Technical Guide
Diatomaceous Earth (DE) filtration is a process that uses diatoms or diatomaceous earth—the skeletal remains of small, single-celled organisms—as the filter media. DE filtration relies upon a layer of diatomaceous earth placed on a filter element or septum and is frequently referred to as pre-coat filtration. DE filters are simple to operate and are effective in removing cysts, algae, and asbestos from water. DE has been employed in many food and beverage applications for more than 70 years and was used specifically to filter potable water during WWII. Since then, it has been used to produce high-quality, low-cost drinking water. DE filtration is currently one of the U.S. Environmental Protection Agency’s (EPA) approved technologies for meeting the require- ments of the Surface Water Treatment Rule (SWTR) and is most suitable for small communities that need to comply with the rule.

Differences in laboratory versus field treatment performance of point-of-use drinking water treatment methods: research gaps and ways forward

Journal Article
The article discusses the discrepancy between laboratory and field performance of point-of-use water treatment (POUWT) techniques and proposes a strategy to help mitigate the research gap and explore the potential to improve current health risk assessments and recommendations by public health entities and manufacturers of POUWT products.

Longitudinal assessment of point-of-use carbon filters for removal of per- and polyfluoroalkyl substances from private well water

Journal Article
The article discusses a study conducted in North Carolina on the effectiveness of under-sink, activated carbon block water filters certified to remove per- and polyfluoroalkyl substances (PFAS) from drinking water.