• Infrastructure
    Rubber dam at Tempe Town Lake bursts, emptying lake overnight

    An inflatable rubber dam (called “bladder”) on Tempe’s Town Lake exploded, sending a wall of water into the Salt River bed; at least three-quarters of the about one billion gallons of water had drained overnight; those parts of the rubber dam which are wet have held up, but a plan to keep those parts of the dam which are above water failed, exposing the rubber to scorching sun that has damaged the material

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  • Infrastructure / the water we drink
    Siemens's leak location and monitoring system reduces losses in drinking water supplies

    Precise knowledge of water losses is essential for operating and planning the maintenance of drinking water networks efficiently; Siemens’s new solution not only continuously checks for leaks, but also pinpoints them automatically; this is done by setting up district metering areas, in which the inflows and outflows of water are measured by ultrasonic flow meters

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  • The water we drink
    New sensor speeds water analysis

    New sensor creates a single procedure for in-situ monitoring of chlorinated hydrocarbons in water, obviating the need for laboratory-based technologies for the analysis of water contaminants, which are time consuming, labor intensive and expensive

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  • Flooding risks along the Mississippi River underestimated by Army Corps of Engineers

    Scientists argue that the U.S. Army Corps of Engineers, in an effort to correct old data on water flows in the Mississippi, may have led to underestimates of the current risk of flooding on the Mississippi between the Ohio and Missouri Rivers, and to inadequate preparations by government agencies

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  • The water we drink
    World Bank report says 700 million people in 43 countries are under "water stress"

    More than 700 million people in 43 countries are under “water stress,” according to a new World Bank report; water-related projects in developing countries now account for more than a third of the World Bank’s projects

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  • AWWA: Chemical security bill needs local decision power

    The American Water Works Association advises Congress that any new chemical security legislation should reflect the need for local water experts to make key treatment decisions and protect sensitive information from non-essential personnel

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  • Chemical plant security
    Growing demand for chemical plants to switch to IST

    A 2008 analysis estimated that seven of Clorox’s bleach plants placed a total of nearly ten million people in the United States at risk from chlorine gas release; Clorox announced last year that it was phasing out processing chlorine gas into sodium hypochlorite in its plants; trouble is, Clorox consumes only about 1 percent of the chlorine gas used each year in the United States, thus, the overall impact of Clorox’s positive move on the country’s risk is minimal

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  • Chemical plant security
    New survey shows many water, wastewater plants improve chemical security

    New study says 554 drinking water and wastewater plants in 47 states have replaced extremely hazardous substances with safer and more secure chemicals or processes; at least 2,600 additional water and wastewater facilities still use large amounts of chlorine gas

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  • Revolutionary water treatment system may make coping with disaster easier

    Researchers develop a revolutionary waste-water treatment device which uses little energy, is transportable, scalable, simple to set-up, simple to operate, comes on-line in record time, and can be monitored remotely; new system cleans influent wastewater within twenty-four hours after set-up to discharge levels that exceed the standards established by the Environmental Protection Agency (EPA) for municipal wastewater

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  • Aging infrastructure poses economic, security risks

    The World Bank says global infrastructure investment needs will be $35 trillion over the next twenty years; in the United States, a leading engineers group estimates that $2.2 trillion is needed over the next five years; the group gave U.S. critical infrastructure a D grade in 2009

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  • Great Lakes aid isn't a cure-all

    Despite $475 million restoration plan, damage continues in freshwater system

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  • Infrastructure protection
    New pipe-inspection technology detects leaks in aging pipes

    An aluminum ball slightly larger than a softball travel through hundreds of miles of water pipes and water mains; equipment inside the ball picks up the hissing sounds of any leaks, and the data are then wirelessly transmitted to a computer; after the pipe is drained, workers push the cart, which resembles a steel bike, through the pipe, and electromagnetic coils attached to a computer on the cart detect the location of the leak

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  • Trend
    Growing worries about unregulated chemicals in water

    Concern about pharmaceuticals showing up in drinking water in trace quantities has prompted a growing public awareness of the need to dispose of unneeded pharmaceuticals properly; changing disposal methods will not solve the problem of other organic waste contaminants, because most of them get into the wastewater stream through intended uses, such as bathing and laundering, and because wastewater treatment systems generally are not able to remove them

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  • Texas running out of water

    Texas’s population of about 24.3 million is expected to hit about 45.5 million by 2060, and the water supply can not come close to keeping pace; if the state were to experience major drought conditions with that many more people, officials estimate almost every Texan would be without sufficient water and there would be more than $90 billion in economic losses

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  • Robot fish could monitor water quality

    Michigan State University researchers develop robots that use advanced materials to swim like fish to probe underwater environments; robotic fish — perhaps schools of them operating autonomously for months — could give researchers far more precise data on aquatic conditions, and the quality — and security — of the water supply

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