water regulation Articles

  • Regulation of water service and efficient use of water

    This report highlights the need for policies targeted to sustainable use of water, which, at the same time, affect water service providers and the environment. Experience from several European countries can help us to identify efficient regulation mechanisms and the effect they could have on the Italian water sector. Some elements of United Kingdom regulation and some of the energy regulation in ...


    By IWA Publishing

  • Gray Water Characteristics and Implications on Regulations for Sustainable Water Reuse

    Different types of gray water in terms of origin (from bathing, kitchen and laundry activities) and in terms of type of source (medium and low-income residential housing and a hotel) have been studied in Gaborone, Botswana during 2004, with respect to BOD5, TSS, TP, pH, fecal coliforms and conductivity. Results show an expected high variability. No statistically significant difference was ...


    By IWA Publishing

  • Frequency pressure regulation in water supply systems

    In water supply systems, pressure management in most cases is proven to be the most cost-effective activity related to water loss control. As an advanced method of pressure control, it is possible to use variable frequency drives for centrifugal pump control. Pressure regulation can be performed with constant pressure or with proportional pressure control. The application of proportional ...


    By IWA Publishing

  • 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

  • Decoupling dependence on natural water: reflexivity in the regulation and allocation of water in Israel

    Since 1999, Israel has secured a decoupling between the total water supplied and water derived from the natural environment through surface and groundwater. Between 2007 and 2010, this decoupling enabled a cut of over 20% in natural water use, while maintaining overall supply volumes despite drought. By 2009–2010, natural water supply had been reduced to the levels of the early ...


    By IWA Publishing

  • Uncertainty in UK water regulation could hinder investment

    The stability and predictability of water company regulation in the UK by the Water Services Regulation Authority ("Ofwat"), which is mandated to ensure value for the end consumer, has been a major contributor to attracting private investment into the sector. Since privatisation in 1989, this stable regulatory framework has enabled sector companies to attract over £108 billion of ...


    By IWA Publishing

  • EPA Clean Water Act: New Regulations re: `Waters of the United States`

    The Environmental Protection Agency (EPA) published a final rule defining the scope of waters protected under the Clean Water Act… The rule will ensure protection for the nation’s public health and aquatic resources, and increase CWA program predictability and consistency by clarifying the scope of ‘‘waters of the United States’’ protected under the ...

  • The Unproductive Argument of Public versus Private:The Regulation of Water Services

    Throughout the world governments, international agencies, local organisations, community groups and NGOs are seeking means of delivering sustainable water and sanitation services. The traditional municipal approach, although in theory the most politically attractive due to responsibility and service provision resting wholly with elected local bodies, ...


    By IWA Publishing

  • The customer forum – putting customers at the centre of regulating water services

    This article will explore recent initiatives in customer engagement in water services in Scotland, UK. Scotland has a well-established and successful model for water services regulation and governance, with a public supplier performing as efficiently as the top quartile of private English companies. One recent innovation has been a form of negotiated settlement between the provider and a group ...


    By IWA Publishing

  • Can regulation improve the performance of government-controlled water utilities?

    This paper provides evidence on whether regulation can improve the performance of government-controlled water utilities. While other studies have examined whether private participation combined with regulation can improve the performance of government-controlled water utilities, there has been little research on whether regulation alone can improve performance.This paper examines five case ...


    By IWA Publishing

  • Best practices in regulating State-owned and municipal water utilities

    The fundamental lesson that emerges from this survey of regulating state-owned and municipal water utilities in ...


    By IWA Publishing

  • Waste Water Treatment in Paper Industry according to IPPC Regulations

    Waste Water Treatment in Paper Industry according to IPPC regulations is achieved in more than 20 German paper industries with aerated upflow biofiltration technology. The article describes the function of aerated upflow biofiltration and the advantages compared with classical aeration tanks. Technological examples in different multistage treatment processes (one stage biofiltration, two stage ...


    By Water Experts Germany

  • Singer pilot regulates anchorage water supply - Case Study

    Their Challenge In 2003, when Anchorage Water and Wastewater Utility (AWWU) faced an efficiency application issue, the utility’s engineering consultant contacted a Singer Valve representative. “We operate more than 55 pressure zones,” says Richard Steckel, AWWU’s general foreman. “These pressure zones are fed from multiple sources and require adjustments from ...


    By Singer Valve Inc.

  • Pathogenic parasites and enteroviruses in wastewater: support for a regulation on water reuse

    Brazilian regulations for nonpotable reuse are being established using World Health Organization guidelines, however, they should be developed based on local monitoring studies. This study intended to analyze enteroviruses, protozoa and viable Ascaris sp. eggs in raw (24) and treated (24) effluents from four Wastewater Treatment Plants of São Paulo State, Brazil. The protozoa were ...


    By IWA Publishing

  • Reducing the Economic Friction of Regulation

    Last month, we looked at two distinctly different bioenergy business models that are merging. Energy profit centers and waste cost-recovery facilities are learning the benefits of each other's business model. The resulting projects generate maximum revenue with lower production costs. The same kind of business model duality occurs in biomass energy regulation. There are more than two kinds of ...


    By BioCycle Magazine

  • Nutrient Regulation on Streams: The Macrophyte Quandary

    ABSTRACTSince promulgation of the Clean Water Act in the 1970s and implementation of technology-based treatment requirements, such as secondary treatment for publicly owned treatment works, the nation’s water quality has improved dramatically. Current water quality concerns are no longer attributed to excessive loads of carbonaceous and nitrogenous biochemical oxygen demand. Rather, the largely ...

  • Oil Storage Requirements of the SPCC Regulations

    ABSTRACTThe SPCC regulations entail numerous requirements for the storage of oil. The intent of this paper is to summarize several of the complex requirements associated with oil storage at a facility subject to the SPCC regulations. INTRODUCTIONThe Spill Prevention, Control, and Countermeasure (SPCC) regulations are far reaching requirements promulgated by the ...

  • Water-level regulation for freshwater management of Bosten Lake in Xinjiang, China

    The Bosten Lake is the largest inland freshwater lake of China, in which water level and salinity fluctuate due to the imbalance between inflows and outflows under climate change and anthropogenic activities. This paper employed system dynamics as an effective methodology to grasp the regulation rules for sustainable freshwater management of the Bosten Lake. Results show the following. (1) ...


    By IWA Publishing

  • Seasonal water quality vs. flow relationships in a small regulated stream

    The relationship of a water quality constituent with respect to flow measured at a stream monitoring station can give valuable information about the watershed and in-stream processes about the constituent in question. Seasonal dependency patterns often reveal relationships which would be unnoticed if all data are treated together. The aim of this study is to examine water quality constituent ...


    By Inderscience Publishers

  • US groundwater protection regulations `not comprehensive enough`

    Groundwater protection is the responsibility of everyone including the chemical industry. An energetic group of state and federal groundwater agencies, industry, environmentalists and other stakeholders, however, has made it a key area of their focus. The Ground Water Protection Council (GWPC) is a nonprofit Section 501(c)(6) organization dedicated to promoting and ensuring the use of best ...


    By Bergeson & Campbell, P.C.

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