drinking water quality report Articles

  • Assessing clarity of message communication for mandated USEPA drinking water quality reports

    The United States Environmental Protection Agency mandates that community water systems (CWSs), or drinking water utilities, provide annual consumer confidence reports (CCRs) reporting on water quality, compliance with regulations, source water, and consumer education. While certain report formats are prescribed, there are no criteria ensuring that consumers understand messages in these ...


    By IWA Publishing

  • Turbidity tubes for drinking water quality assessments

    Turbidity tubes have been considered to be the field method of choice for drinking water quality monitoring in resource-limited contexts because of their relative simplicity and low cost in comparison with conventional (nephelometric) turbidimeters. These tubes utilise the principle of visual extinction of a submerged target for turbidity determination and were therefore thought to be subject to ...


    By IWA Publishing

  • Drinking water in rural India: a study of deficiency, quality and some social implications

    There is no doubt that accessibility of drinking water for rural households in India has increased over the decades, partly owing to concerted efforts by the state and partly owing to a rise in income of the people. Public provision of drinking water is primarily made through the tap whereas private provision is through the tube well. Households opt more for a tube well than for other sources ...


    By IWA Publishing

  • A comparative assessment of institutional frameworks for managing drinking water quality

    The global burden of disease attributable to contaminated drinking water calls for effective strategies for ensuring drinking water quality. To characterize institutional and policy approaches towards water quality management, we compared national and sub-national institutional frameworks for drinking water provision and management in nine developing countries, focusing on roles, responsibilities ...


    By IWA Publishing

  • Homeland Security for Drinking Water Supplies

    As it has done with other jurisdictions, Congress has recently passed legislation aimed at protecting our nation's drinking water resources. Historically, water supply protection has been a high priority, including reservoir protection, continuous monitoring, and secure and redundant facilities to ensure an uninterrupted supply of drinking water. The Clean Water Act (1972), requires pollution ...


    By AECOM

  • Ensuring Water Quality in Africa

    Water is essential for life, and “access to safe water is a fundamental human and, therefore, a basic human right.” With this statement and his address on World Water Day in 2001, United Nations Secretary-General Kofi Annan put a spotlight on what continues to be a global problem: clean water. This year completes the UN “Water for Life” international decade for ...


    By ASTM International

  • The determinants of two-dimensional service quality in the drinking water sector – evidence from Colombia

    Quality of drinking water service is considered in two dimensions: tangibles (measured by sediment, taste, smell, and color) and reliability (measured by service continuity). Using a large and unique household-level dataset, we study important factors that are related to these dimensions in the Colombian drinking water sector. Based on the network design of pumping, purification, and delivery, ...


    By IWA Publishing

  • A novel technology to improve drinking water quality using natural treatment methods in rural Tanzania

    It is estimated that one billion people worldwide do not have access to treated drinking water. This paper reports on an investigation into the potential of indigenous or natural water treatment methods as alternatives to conventional chemical water treatment methods. The seeds of five natural plant species—Vigna unguiculata, Phaseolus mungo, Glycine max, Pisum sativam, and Arachis hypogea—were ...

  • A novel technology to improve drinking water quality: a microbiological evaluation of in-home flocculation and chlorination in rural Guatemala

    An estimated 1 billion persons in low-income countries do not have access to improved drinking water. Chlorine, a useful water treatment agent, is less effective in turbid water, and lacks a visible effect, limiting its acceptability. A product incorporating precipitation, coagulation, flocculation, and chlorination technology (combined product) to reduce microbial, organic and heavy metal ...


    By IWA Publishing

  • Effects of improved storage containers on the bacteriological quality of household drinking water in low-income urban communities in Ibadan, Nigeria

    This study assessed the effectiveness of improved storage containers on household drinking water quality in four low-income urban communities in Ibadan, Nigeria. Three hundred randomly selected respondents were interviewed, while 44 households were selected and randomly assigned to four improved container treatment groups: Covered Buckets with Taps (CBT), Covered Buckets without Taps (CB), ...


    By IWA Publishing

  • Index of drinking water adequacy for the Asian economies

    An Index of Drinking Water Adequacy (referred to as IDWA-I in this paper) was first proposed in 2007 for 23 member countries of the Asian Development Bank (ADB), and formed part of the Asian Water and Development Outlook (AWDO), 2007 brought out by the ADB. IDWA-I was obtained by averaging 5 separate component indicators referring to capacity to buy water, extent of resource availability, amount ...


    By IWA Publishing

  • Ensuring safe drinking water case study

    Challenge: A state environmental agency contracted with Antea Group to assist in the execution of a state-wide clean drinking water program. Program objectives included the development of an efficient and standardized program to monitor for chemical and biological contaminants across more than 6,500 public water systems. ...


    By Antea Group - USA

  • Advanced Water Quality Techniques Course

    Abstract:The development of a strategic water quality monitoring program is based on prioritizing risks to public safety and economic reality. The development of global standardized methods and protocols for automated water quality monitoring would facilitate international communication of water quality information and comparison of standardized methods and protocols. The three primary methods ...


  • Algal control and enhanced removal in drinking waters in Cairo, Egypt

    Algal blooms at the major water treatment plants in Egypt have been reported since 2006. While previous studies focused on algal types and their correlation with disinfection by-products, correlation between raw water quality and algal blooms were not explored. Therefore, a survey of Nile water quality parameters at a major water intake in the Greater Cairo Urban Region was conducted from ...


    By IWA Publishing

  • National rural drinking water monitoring: progress and challenges with India's IMIS database

    National drinking water programs seek to address monitoring challenges that include self-reporting, data sampling, data consistency and quality, and sufficient frequency to assess the sustainability of water systems. India stands out for its comprehensive rural water database known as Integrated Management Information System (IMIS), which conducts annual monitoring of drinking water coverage, ...


    By IWA Publishing

  • Quantifying micro-organism removal for safe drinking water supplies

    Over the past ten years the management of microbiological drinking water quality in The Netherlands has shifted from curative administration toward a more preventative strategy. This shift in policy came as a result of the findings of reports from other developed countries which highlighted the risk from persistent pathogens such as Cryptosporidium, Giardia, some enteroviruses; and the pathogenic ...


    By IWA Publishing

  • Effect of oxygen deprivation on treatment processes in a full-scale drinking water biofilter

    Dissolved oxygen is critical for proper operation of waterworks that utilize anaerobic groundwater and rely on biofilters to remove iron, manganese and ammonium. In these biofilters, planned or inadvertent oxygen deprivation may occur for a variety of reasons. The water quality effects of oxygen deprivation on the function of drinking water biofilters, however, have not previously been reported. ...


    By IWA Publishing

  • The South Australian Safe Drinking Water Act: summary of the first year of operation

    The Safe Drinking Water Act 2011 was introduced in South Australia to provide clear direction to drinking water providers on how to achieve water safety. The Act requires drinking water providers to register with SA Health and develop a risk management plan (RMP) for their water supply that includes operational and verification monitoring plans and an incident notification and communication ...


    By IWA Publishing

  • Evaluation of household drinking water filter distribution programs in Haiti

    Household water treatment (HWT) can reduce the diarrheal disease burden in populations without access to safe water. We evaluated five programs that distributed biosand, ceramic, or Sawyer filters in Haiti after the 2010 earthquake and cholera outbreak. We conducted household surveys and tested Escherichia coli and turbidity in stored household untreated and treated water in ∼50 randomly ...


    By IWA Publishing

  • Removal of inorganic anions from drinking water supplies by membrane bio/processes

    This paper is designed to provide an overview of the main membrane-assisted processes that can be used for the removal of toxic inorganic anions from drinking water supplies. The emphasis has been placed on integrated process solutions, including the emerging issue of membrane bioreactors. An attempt is made to compare critically recently reported results, reveal the best existing membrane ...


    By Springer

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