critical water data Articles

  • How to make top-down and bottom-up sustainability converge

    Fits and starts are all too common in the sustainability world. One year you have budget for initiatives; the next you don’t. Management hails cost savings on individual projects, but they miss the big picture and fail to link progress across departmental boundaries. Bottom-up progress and top-down directives pass each other like proverbial ships in the night. But it doesn’t have to ...


    By CH2M Hill Companies, Ltd.

  • Sludge Blanket Level Detection – making new process opportunities possible

    Much Pulsar's Self-Cleaning Viper Sludge Sensor of the demonstrating the effective maintenance-free solution. discussion around the way we deal with sewage sludge – the way it is moved around the process, the bellmouth valves and decant processes, the downstream treatment of the liquors, important issues around TOTEX and discharge Compliance, plus more recently the ...

  • Fire Codes: A Foundation of Safety for a Rapidly Changing World

    Chief among these safety features is fire protection. There are myriad codes and regulations relating to fire safety in commercial buildings, from standards on portable fire extinguishers to the installation of stationary pumps for fire protection — the U.S.- based National Fire Protection Agency (NFPA) alone has more than 300 consensus codes that have been adopted in whole or in part ...

  • The Next Generation of Level Control

    Water is an essential resource for everyday life, and thus having a way to store and distribute water is of critical importance. Water storage tanks have been designed to compensate for varying water demands during high and low ...


    By Singer Valve Inc.

  • The benefits of monitoring compressed air

    Compressed air is used in many manufacturing processes for many different reasons, from the actuation and control of pneumatic valves and cylinders to the operation of process machinery and tooling. It can also be used as a transport medium for bulk materials or as a purge gas. For all its uses it is nonetheless expensive. This is why, through detailed monitoring, a business can enjoy the ...


    By Contrec Europe Limited

  • Changing the Rules with Mass Detection

    How simplified detectors can provide mass data for every analytical run and speed up method development With access to multiple mass spectrometry systems of varying degrees of sophistication, Davy Guillarme (University of Geneva, Switzerland) wasn’t actively looking for new mass detection solutions. Nevertheless, the Waters ACQUITY QDa mass detector caught his eye. Why? Because it opens a ...


    By Waters Corporation

  • Water: a critical component of any sustainability strategy

    Reducing water use is becoming an increasingly important sustainability metric for business. Viewpoint by Michael Gifford, Head of Operations & Delivery Partners, Carbon Trust Certification, and Morgan Jones, Standard Certification Manager, Carbon Trust Certification. The UK Ministry of Defence (MoD) has ...


    By Carbon Trust

  • Critical Evaluation of Waterbody Assessment Processes

    The states’ ability to confidently determine compliance of ambient conditions with water quality standards is limited by the availability of data and selection of appropriate assessment methodologies, resulting in greater likelihood of misinterpretation of the status of our nation’s waters. The objective of this research was to critically evaluate the methodologies states employ when assessing ...

  • Metropolitana milanese reduces water loss on critical steel pipeline

    Assessing the condition of buried water infrastructure can yield a variety of outcomes that are difficult to predict. Sometimes, they even seem random. The common belief that the age of a pipe determines its condition is rarely correct – in many cases, a newer main can be in worse condition than one twice or three times as old. Instead, operational, environmental and installation factors ...


    By Pure Technologies

  • Case study - LHPWSS Manages Critical Pipeline

    Service: Assess and Address Client: Lake Huron Primary Water Supply System Project Date: October 2012 - March 2013 Location: Greater London Region, ON Type of Pipeline: Water Transmission Main Diameter: 48-inch (1200mm) Pipe Material: PCCP The Lake Huron Primary Water Supply System (LHPWSS) serves about 500,000 people over eight municipalities in the London area and ...


    By Pure Technologies

  • Transforming Large Databases into Critical Knowledge Using Data Mining - Three Case Studies in South Carolina and Georgia

    ABSTRACTData mining is an emerging field that addresses the issue of converting large databases into knowledge. Data mining methods come from different technical fields such as signal processing, statistics, and artificial intelligence. Data mining employs methods for maximizing the information content of data, determining which variables have the strongest relationships to problems of interest, ...

  • Advanced criticality assessment method for sewer pipeline assets

    For effective management of water and wastewater infrastructure, the United States Environmental Protection Agency (US-EPA) has long emphasized the significant role of risk in prioritizing and optimizing asset management decisions. High risk assets are defined as assets with a high probability of failure (e.g. soon to fail, old, poor condition) and high consequences of failure (e.g. ...


    By IWA Publishing

  • An approach for determining the most critical among a suite of chemical contaminants at a drinking water intake

    An integrated approach for the identification and assessment of the most critical chemical contaminant(s) at a drinking water intake has been developed. It involves the determination of a threshold or critical raw water concentration (CRWC) for target contaminants using the observed overall removal efficiency of a specific water treatment plant (WTP) and regulated drinking water concentrations ...


    By IWA Publishing

  • Development of a GIS method to localize critical source areas of diffuse nitrate pollution

    The present study aimed at developing a universal method for the localization of critical source areas (CSAs) of diffuse nitrate (NO3−) pollution in rural catchments with low data availability. Based on existing methods, land use, soil, slope, riparian buffer strips and distance to surface waters were identified ...


    By IWA Publishing

  • It Began With A Little Red Wagon: Collecting Real Information To Make Critical Decisions

    Tarrant Regional Water District (TRWD) and Pure Technologies U.S. (Pure) have a long history of working together to keep the water transmission mains in the Dallas-Fort Worth (DFW) area in good operating condition. The partnership began 17 years ago with mutual development of electromagnetic technology to inspect ...


    By Pure Technologies

  • Effectiveness of a Sediment Time Critical Removal Action – PCB Reduction in Fish Tissue, Surface Water and Sediment via Wet Excavation

    Documenting successful remediation of polychlorinated biphenyl (PCB)‐contaminated sediments is limited; potentially due to inadequate monitoring methods, complexities associated with the environment, and selected remedial techniques. At some sites, absence of appropriate baseline and post‐removal monitoring limits proper evaluation of remedial efficacy. Accurate interpretation of interactions ...


    By John Wiley & Sons, Ltd.

  • Toxic concentrations in fish early life stages peak at a critical moment

    During the development of an embryo into a juvenile, the physiology and behavior of a fish change greatly, affecting exposure to and uptake of environmental pollutants. Based on experimental data with sole (Solea solea), an existing bioaccumulation model was adapted and validated to calculate the development of concentrations of persistent organic pollutants in the tissue of developing fish. ...


    By John Wiley & Sons, Ltd.

  • Accumulated state of the Yukon River watershed: Part I critical review of literature

    A consistent methodology for assessing the accumulating effects of natural and man‐made change on riverine systems has not been developed for a whole host of reasons including a lack of data, disagreement over core elements to consider, and complexity. Accumulated State Assessments of aquatic systems is an integral component of watershed cumulative effects assessment. The Yukon River is the ...


    By John Wiley & Sons, Ltd.

  • City of tarpon springs assesses critical ductile iron force main

    Across the United States, there are many thousands of water and wastewater utilities that serve populations less than 50,000. Although the majority of attention surrounding aging infrastructure focuses on the challenges of large utilities, these small utilities are often faced with greater challenges. Smaller utilities often have fewer resources – both financial and personnel – ...


    By Pure Technologies

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