drinking water regulation Articles

  • A look at some contaminants regulated in drinking water

    The U.S. Environmental Protection Agency regulates just over 90 contaminants in public drinking water systems. They include manmade chemicals as well as naturally occurring contaminants from rocks and soil. A look at some of the contaminants that fall under federal or state regulations: ARSENIC: Enters drinking water through eroding natural deposits in the ground or mining and other ...


    By Associated Press

  • Drinking water application notes

    The Safe Drinking Water Act (SDWA) was passed in 1974 to protect the nation's public drinking water supply. The law allowed for the EPA to regulate the amount of certain contaminants that a body of water can contain. The Application Notes listed are designed to extract organic compounds in municipal drinking water for ...


    By Horizon Technology, Inc.

  • Drinking Water Analysis Guide

    Public Water Systems (PWS), regulated by the United States Environmental Protection Agency (USEPA), provide drinking water to 90% of Americans. Water systems and laboratories testing drinking water for Safe Drinking Water Act (SDWA) compliance must be certified and must use USEPA approved methods, which are developed by the USEPA, other government agencies, universities, consensus method ...

  • Metals and Related Substances in Drinking Water

    The contamination of drinking water by metals and metalloids can occur throughout the “source to tap” production and delivery system. The major problems are with arsenic, iron, nickel and lead. Problems can also occur with aluminium, copper, manganese, selenium and sodium. Arsenic, iron and lead are core parameters in the UN/WHO Protocol on Water and Health. The spectrum of ...


    By IWA Publishing

  • Report to Congressional Requestors: Drinking Water

    Every day in the United States, at least 2 billion gallons of fluids are injected into over 172,000 wells to enhance oil and gas production, or to dispose of fluids brought to the surface during the extraction of oil and gas resources. These wells are subject to regulation to protect drinking water sources under EPA’s UIC class II program and approved state class II programs. Because much ...


    By IWA Publishing

  • Crossville, TN, municipal drinking water

    The Situation: The City of Crossville, Tennessee, needed to address increasingly strict regulations on the use of gas chlorine to disinfect their community’s water. The Solution: By switching from gas chlorine to MIOX mixed oxidants, the City has reduced operational costs, improved residual durability, reduced byproduct formation, produced longer filter ...


    By MIOX Corporation

  • Organisational arrangements and drinking water quality

    This paper discusses the findings of a research project which explored the impact of varying organisational arrangements on drinking water quality in England and Wales, and the Republic of Ireland. It is established that drinking water quality has been of a consistently higher standard in England and Wales in comparison with the Republic of Ireland. It is also demonstrated that the associated ...


    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

  • Arsenic in private drinking water wells: an assessment of jurisdictional regulations and guidelines for risk remediation in North America

    Arsenic is a known carcinogen found globally in groundwater supplies due to natural geological occurrence. Levels exceeding the internationally recognized safe drinking water standard of 10 μg/L have been found in private drinking water supplies in many parts of Canada and the United States. Emerging epidemiological evidence confirms groundwater arsenic to be a significant health concern, ...


    By IWA Publishing

  • ICP Analysis of Multiple Elements in Drinking Water

    The amount of water typically consumed by an adult is said to be about two liters per day, and nearly all of this is tap water or mineral water, generally referred to as "drinking water." Conducting safety inspections are the responsibility of each country according to their respective regulations. Typically, there are many target elements included in the test, such as sodium (Na), calcium ...

  • Managing uncertainty in the provision of safe drinking water

    The Canadian Water Network, the Alberta Water Research Institute, and the Ontario Centres of Excellence have collaborated to create the Canadian Municipal Water Management Research Consortium, a new initiative to engage municipal water authorities and allow them to access research capacity to tackle mutually identified, critical issues. The challenge of managing uncertainty in the provision of ...


    By IWA Publishing

  • New DWI guidelines for UV drinking water disinfection

    atg UV, has seen increasing interest in the application of UV systems for the treatment of drinking water applications since the UK Drinking Water Inspectorate (DWI) released their ‘Guidance on the use of Ultraviolet (UV) Irradiation for the Disinfection of Public Water Supplies' February 2010. With systems treating in excess of 2000 m3/hr daily, Ultraviolet disinfection is no longer an ...


    By atg UV Technology

  • Evolution of regulatory targets for drinking water quality

    The last century has been marked by major advances in the understanding of microbial disease risks from water supplies and significant changes in expectations of drinking water safety. The focus of drinking water quality regulation has moved progressively from simple prevention of detectable waterborne outbreaks towards adoption of health-based targets that aim to reduce infection and disease to ...


    By IWA Publishing

  • Perspectives on drinking water monitoring for small scale water systems

    Drinking water (DW) is increasingly subject to environmental and human threats that alter the quality of the resource and potentially of the distributed water. These threats can be both biological and chemical in nature, and are often cumulated. The increase of technical frame of water quality monitoring following the evolution of water quality standards guarantee the regulation compliance in ...


    By IWA Publishing

  • 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

  • Utility of the laser particle counter for determination of drinking-water toxicity

    Particle toxicity in various water samples depends on the mixture of toxicants in each sample. Toxicity values for different samples can be expressed using the new metric: Particle Toxicity. Use of the Spectrex PC-2000 was the instrument of choice in enumerating the particle concentrations for the calculation of the particle toxicity of drinking-water and reference toxicant suspensions. ...


    By Spectrex Corporation

  • Our Conical Cone Tanks Are Now WRAS Approved For Drinking Water Storage

    When it comes to quality, Enduramaxx is there. And our cone tanks (conical tanks) are no exception. We are proud to announce that they have just been granted WRAS certification. The Water Regulation Authority Scheme approval means that these tanks are approved for the storage of emergency water for human consumption. This means our cone bottom tanks can be used for applications for storage of ...


    By ENDURAMAXX

  • Cover-all helps community keep drinking water safe

    Location: Angelica, NY, USAApplication: Water TreatmentBuilding Series: TITAN®Building Size: 90' w x 230' l (27.4m x 70m) When local engineers in Angelica, N.Y. began to search for a cover for an existing water reservoir because current systems were failing, it didn't take them long to discover a Cover-All® TITAN® building was the perfect solution. 'The wide clear-span space and how the building ...


  • Factors influencing public perception and use of municipal drinking water

    Despite more stringent regulations concerning drinking water quality in many countries, the public is increasingly concerned about the safety of municipal tap water. For this reason, acquiring a better understanding of consumer perception of tap water is an important issue for water authorities and utility managers. In this study, water consumption choice and profile were investigated. The case ...


    By IWA Publishing

  • Using UV for Simultaneous Disinfection and Control of Unpleasant Tastes and Odors in Drinking Water

    Algae blooms in surface water sources often lead to off-tastes and odors in finished drinking water. Because public confidence in overall drinking water quality is closely related to aesthetic quality, there is increasing interest in solving taste and odor issues.  UV-oxidation, the combination of UV and hydrogen peroxide, offers the ability to treat taste and odor (T&O) while simultaneously ...

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