water supply contamination Articles

  • Estimating Future Impacts of Groundwater Contamination on Water Supply Wells

    In the following sections, we provide discussion and information to supplement the Feature Article. This material could not be included in the article itself due to space limitations of the printed ...


    By Solinst Canada Ltd.

  • Outbreak of acute gastroenteritis due to a washwater-contaminated water supply, Switzerland, 2008

    An operating error in a sewage treatment plant led to severe drinking water contamination in a well-defined district of a suburban municipality of Zurich, Switzerland. Despite the alert issued to the local population on the same day advising people not to consume the contaminated water, cases of acute gastroenteric diseases were subsequently observed. Considerable faecal contamination was ...


    By IWA Publishing

  • Quantitative analysis of microbial contamination in private drinking water supply systems

    Over one million households rely on private water supplies (e.g. well, spring, cistern) in the Commonwealth of Virginia, USA. The present study tested 538 private wells and springs in 20 Virginia counties for total coliforms (TCs) and Escherichia coli along with a suite of chemical contaminants. A logistic regression analysis was used to investigate potential correlations between TC ...


    By IWA Publishing

  • Pharmaceuticals and water supply

    Prescription Drugs have been detected in water supply systems of major cities in the United States including Europe, Canada, Australia and Asia.  In addition, quantities of antibiotics, steroids, antidepressants, and hormones are also present in the water supply (Doro-on, 2011).  These new emerging contaminants are designed with small concentrations that can generate specific health ...


    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

  • Design of dual water supply system using rainwater and groundwater at arsenic contaminated area in Vietnam

    Fresh water, a renewable but limited resource, is scarce in many areas of the developing world. This paper proposes a dual water supply consisting of both rainwater and groundwater to provide sustainable water for an arsenic contaminated area. In this paper, a novel model has been developed based on rainfall variance. A rainwater harvesting (RWH) system can obtain optimal performance by changing ...


    By IWA Publishing

  • Inequalities in microbial contamination of drinking water supplies in urban areas: the case of Lilongwe, Malawi

    Over past decades strategies for improving access to drinking water in cities of the Global South have mainly focused on increasing coverage, while water quality has often been overlooked. This paper focuses on drinking water quality in the centralized water supply network of Lilongwe, the capital of Malawi. It shows how microbial contamination of drinking water is unequally distributed to ...


    By IWA Publishing

  • Application of solar disinfection for treatment of contaminated public water supply in a developing country: field observations

    A sustainable and low-cost point-of-use household drinking water solar disinfection (SODIS) technology was successfully applied to treat microbiologically contaminated water. Field experiments were conducted to determine the efficiency of SODIS and evaluate the potential benefits and limitations of SODIS under local climatic conditions in Karachi, Pakistan. In order to enhance the efficiency of ...


    By IWA Publishing

  • A Forensic Approach to Solve a Ground Water Contamination Problem

    In 2000, a subdivision outside a small city in southeast Texas discovered that the water supply wells that individual households had drilled were contaminated with trichloroethylene or TCE as it is commonly called. Since the extent of TCE contamination seemed to extend for over a mile in length, it was thought the “event” or “events” leading to the contamination had occurred some years ago. The ...

  • Abandon Well Contaminate Aquifer

    This article points out the magnitude of this urgent issue.  An abandoned well becomes an opening into an aquifer which is likely to introduce contamination.  Filling it in is a critical component of protecting the well water supply.  Click here to read the ...

  • Geodrilling Dec 14: Maintaining Reliable Water Supplies

    This article describes Wessex’s problems with iron contamination and the borehole remediation work it has been doing with BoreSaver and Geoquip Water Solutions over the last four years. Water and sewage-treatment company Wessex water, serving an area of the south-west of England, talks us through its groundwater management programme and rehabilitation efforts. Around half of ...


    By Geoquip Water Solutions

  • Water supply and mining: the policy paradox in Ghana

    Ghana has been highly successful in mining for over a century. However, one area of concern is the negative impact of mining activities on water resources: their quality and quantity. Mining companies are guided by rules and regulations, particularly those that have to do with the quality of water supply. Safe water supply is essential for improved health and quality of life for increased ...


    By IWA Publishing

  • Nosocomial pseudo-outbreak of Mycobacterium gordonae associated with a hospital's water supply contamination: a case series of 135 patients

    Nontuberculous mycobacteria (NTM) are opportunistic pathogens found in natural and human-engineered waters. In 2009, a relative increase in the isolation of Mycobacterium gordonae from pulmonary samples originating from General Hospital Zabok was noted by the National Mycobacteria Reference Laboratory. An epidemiological survey revealed a contamination of the cold tap water with M. ...


    By IWA Publishing

  • Removing Chloramines from Drinking Water Supplies

    Historically, most public water supplies have been treated with chlorine to satisfy the standards set by the Safe Drinking Water Act of 1974. Since being established, there is reason to believe that the standards may be too lenient on the allowable contaminant levels in our drinking water. For instance, chlorine and other disinfectants react with organic matter creating ...


    By General Carbon Corp.

  • Water Supply and Sanitation (WASH) in Harmony with Nature

    The grassy hillsides and vast forests around Rwambu wetland in south-western Uganda are not only a beautiful sight to see - it is fertile land which sustains agricultural based livelihoods, such as coffee, tea, bananas and beans. The Rwambu wetland is also a success story of integrated nature-based solutions. In the not so distant past, the people of Rwambu were up against a quickly ...


    By Wetlands International

  • The PWN Water Supply Company North Holland

    The PWN Water Supply Company located in the North Holland Province of the Netherlands, uses Trojan UV technology to provide an additional barrier to micropollutants. In addition, the UV system disinfects, inactivating chlorine-resistant pathogenic microorganisms. The drinking water treatment plant, located in Andijk, serves approximately a half a million people and treats up to 4,000 cubic ...

  • Problem Solver for water supply - Pollution incidents

    Pollution in water supplies has always been a concern for water companies and with today’s political climate the issue has never been more important. The threat of terrorism and the requirements of Homeland Security and similar initiatives around the world require that water companies maintain detailed plans for how to ...


    By Innovyze

  • A solution to fracturing water supply and disposal issues

    “Water, water, everywhere, Nor any drop to drink.” –The Rime of the Ancient Mariner, Samuel Taylor Coleridge Many topics of conversation among oil and gas industry professionals are predictable – oil price trends, the “great shift change” imperiling the available workforce, and production quotas and caps from OPEC. Yet one pressing topic among those developing ...


    By Fairmount Santrol

  • Salting icy roads affects water supplies

    It’s basic chemistry: Saline water’s freezing point is much lower than fresh water’s, which can help keep ice from forming on roads. To reduce winter accidents, municipal and state workers often apply salt and other compounds to icy roads, because if not accidents start to happen and people end up in need cash in emergency. Unfortunately, this may have unintended consequences ...


    By Fluence Corporation

  • Battling Iron Bacteria Contamination in Mining

    Published in the May issue of International Mining, this article focuses on the problem of iron bacteria contamination in the water supply for the Tiwest Mine at Cooljarloo, Australia. Mines rely heavily on groundwater sources and the quality and flow of that water have both operational and regulatory implications. The problem of mineral and bacterial contamination in groundwater sources can ...


    By Geoquip Water Solutions

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