water testing supplies Articles

  • 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

  • Testing the Waters

    Last summer’s wave of tropical storms left the East Coast scrambling to ensure drinking water quality. Water Quality Products editorial intern Raissa Rocha spoke with Marc Hamel of testing equipment manufacturer Horizon Technology Inc. to discuss the impact weather events may have on water quality. Raissa Rocha: What is your experience with ...


    By Horizon Technology, Inc.

  • Integrated local water supply plan

    Client: City of Wichita, Kan. Completion Date: June 2001  Services Provided Water supply planning Evaluation of alternatives Cost estimating Economic comparison Environmental studies (NEPA) Program management Hydrogeologic engineering Water quality monitoring ...


    By Burns & McDonnell

  • 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

  • Water testing 101: TDS

    According to Wikipedia, total dissolved solids (TDS) is defined as “the combined content of all inorganic and organic substances contained in a liquid that are present in a molecular, ionized or microgranular suspended form.” The article goes on to state that “total dissolved solids are differentiated from total suspended solids (TSS) in that the latter cannot pass through a ...


    By HM Digital, Inc.

  • Stainless steels within desalination for reliable water supply

    To assure sustainable water production, the materials used in desalination plants need to perform for many decades without failures. During the last years, duplex - austenitic-ferritic - stainless steels have been selected for several desalination projects due to their unique combination of mechanical properties and corrosion resistance. Price stability of those grades, as a consequence of a ...


    By Inderscience Publishers

  • Simulating development strategies for water supply systems

    ABSTRACT The objective of this paper is to point out existing risks of current design and management strategies in water supply systems and to identify possible ways of designing and operating schemes which minimize these risks. This paper is motivated by the observation that existing design principles and engineering rules (best practice) seem to cope insufficiently or even conflict with ...


    By IWA Publishing

  • Testing and developing energy harvester systems for operation of energy-self-sufficient measurement and control units in drinking water supply

    In recent years, wireless measurement and control units have become more popular for monitoring water distribution systems in the drinking water supply. Electric power supply for a higher number of devices through fixed connections to the public electrical grid is technically complex and requires large investments. Powering monitoring devices, which are installed in areas where electrical ...


    By IWA Publishing

  • Water Supply and Ground Water Resource Management Projects case study

    Borough of Dublin, Bucks County Hydrogeological Consultant of Record Mercuri and Associates, Inc. was contracted to conduct the necessary hydrogeologic study to identify and recommend test well sites to augment the available water supply. Study was completed on time and on budget and resulted in the identification of eight sites with the potential for ...


    By Mercuri & Associates, Inc.

  • Deterioration in water quality from supply chain to household and appropriate storage in the context of intermittent water supplies

    Many water providers in urban developing country contexts have to supply the water intermittently due to the disparity between rapidly growing demand and investment in supply infrastructure. This can lead to water quality risks such as ingress of polluted groundwater and unsafe household storage. This study has investigated the common risks and possible alternative solutions down the supply chain ...


    By IWA Publishing

  • Lake supply & treatment expansion

    Client: City of Fort Smith Completion Date: 2003 - Design2006 - Lake construction2008 - Plant construction Services Provided Supply reservoir enlargement 30 million-gallon-per-day (MGD) water plant renovation New 20-MGD dual train water plant addition Pulsating clarifiers ...


    By Burns & McDonnell

  • Testing for Nitrates in Water, what are the Options?

    Nitrate is a naturally occurring substance in the environment and is commonly found in most water sources, it is usually only a cause for concern in areas where water supplies can be affected by farm runs offs and agriculture, its use as a fertiliser can cause increased levels in water supplies The ...


    By Camlab Limited

  • Apartment Water Test - Case Study

    We had successfully mitigated this exact situation at another property (Family Tree Apartments] which also had extensive pin hole leaks and water heater failures. Based upon this prior exceptional success, it was clear that the H20 Solutions USA, LLC team was again needed to engineer a solution. H20 Solutions USA, LLC is analysis revealed that the water supply in Greenfield, CAis very hard at 18 ...


    By HydroFLOW USA

  • River safe yield with the constraint of a contracted rectangular weir for surface water supply

    Aydin et al. introduced the weir velocity concept in 2011 for discharge measurement in contracted rectangular sharp-crested weirs. Gharahjeh et al. further reinforced this formula in 2015 to allow discharge to be computed using only weir velocity and crest width. These newly introduced expressions are tested and demonstrated to determine surface water yield of Tapah River in ...


    By IWA Publishing

  • Removal of DOC and DBP Precursors from a Surface Water Supply

    Background: The 2.5 MLD Airey’s Inlet Water Treatment Plant is conventional alum coagulation, sludge blanket clarification, filtration WTP. It sources raw water from the 514 ML Painkalac Dam situated in the Angahook State Park This raw water is soft and high in colour and dissolved organic carbon (DOC). After heavy rainfalls, colour and DOC content are known to further increase along with a spike ...


    By IXOM Watercare

  • Modeling trihalomethane formation for Jabal Amman water supply in Jordan

    A mathematical model that expresses Total trihalomethane (TTHM) concentration in terms of initial chlorine concentration, total organic carbon, bromide ion concentration, contact time, and pH is developed for Zai water treatment plant which supplies water to Jabal Amman. The developed mathematical model is for constant temperature of 20°C. To adjust model calculated TTHM concentrations for ...


    By Springer

  • System dynamics analysis of water supply and demand in the North China Plain

    Water resource carrying capacity (WRCC) is an important metric for regional sustainable development in China. It is defined as the difference between the total water supply and demand. The North China Plain (NCP) currently faces a serious water shortage if the WRCC is not managed at a sustainable level. This study focuses on applying system dynamics (SD) methodology to evaluate different water ...


    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

  • Screening of pharmaceuticals and endocrine disrupting compounds in water supplies of Cyprus

    Cyprus is currently the leading country in antibiotic consumption among all European Union member countries and is likely to have a high consumption of pharmaceuticals overall. This reconnaissance type of project sought to investigate the occurrence of 16 pharmaceuticals, six known or suspected endocrine disrupting compounds (EDCs), two flame retardants, one insect repellant, and one fragrance ...


    By IWA Publishing

  • Prediction of the quality of public water supply using artificial neural networks

    The Health Surveillance Program was established by the Regional Health Authority of Alentejo to control the quality of public water supply. This authority divides the water quality parameters into three distinct groups, namely P1 (pH and conductivity), P2 (nitrate and manganese) and P3 (sodium and potassium), for which the sampling frequency is dissimilar. Thus, the ...


    By IWA Publishing

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