Tag Archives: Spotlight

Lessons learned at Empire facility guide state policies

The Metropolitan Council Environmental Services’ (MCES) visionary leadership and close collaboration with regional partners have been key to advancing integrated water management in the US state of Minnesota. Karen Jensen and the MCES team explain how the process began with the Empire water resource recovery facility expansion project. Expansion of the Empire water resource recovery […]

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U.S. EPA announces winners of the sixth annual Campus RainWorks Challenge

The U.S. Environmental Protection Agency (EPA) announced the winners of its sixth annual Campus RainWorks Challenge, a national collegiate competition that engages the next generation of environmental professionals to design innovative solutions for stormwater pollution. “Today’s students are tomorrow’s innovators,” said EPA Office of Water Assistant Administrator David Ross. “Through EPA’s Campus RainWorks Challenge, we […]

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New Orleans keeps Mardi Gras beads out of storm drains with new initiatives

Last summer, heavy rains fell on New Orleans and caused widespread street flooding. These floods prompted Mayor Mitch Landrieu to launch a $26 million plan to, among other resilience measures, assess and rehabilitate thousands of the city’s street-side catch basins. In the months that followed, work crews unblocked more than 15,000 clogged catch basins, recovering […]

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Urban flood mitigation in Quebec City

Quebec City has deployed a real-time decision-support system that uses modeling, monitoring, and other measures to regulate flooding conditions for a 100-year storm event. Authors Diana Qing Tao and Martin Pleau of Tetra Tech and Denis Brisson and Nathalie Jolicoeur of the City of Quebec explain how the real-time control (RTC) system provides flood protection. […]

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U.S. EPA to change rule-making process for wastewater blending

The U.S. Environmental Protection Agency (EPA) announced in April that it will work with states, municipalities, and subject-matter experts to set public health and safety standards for wastewater blending. The Water Environment Federation (WEF; Alexandria, Va.) will provide EPA with guidance and comments during the rule-making process. Wastewater blending is a procedure that water resource […]

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China embarks on massive stormwater projects to plan for future water risks

China is midway through its decades-long South—North Water Transfer Project, a massive system of aqueducts intended to convey 44.8 billion m3 (11.8 trillion gal) of fresh water each year from China’s rural, rainy south to its drier and more urbanized north. However, the country also is exploring far-reaching ways to use stormwater as the basis […]

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PWD has designed a monitoring program to collect many types of environmental data including precipitation, sewer flow, and data on GSI performance.

Data analyses confirm GSI value in overflow control

Designed to reduce combined sewer overflow, green infrastructure in the city of Philadelphia, Pa., in the U.S., has been proven effective based on monitoring data analyses, according to Dwayne Myers and Andrew Baldridge of CDM Smith and Chris Bergerson, Taylor Heffernan, Varsha Raj, Stephen White, and Elizabeth Mannarino of the Philadelphia Water Department. Many water […]

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Figure 1 from the 2018 publication (originally Figure 2.1 in the 2013 report) presents trends in different types of natural catastrophes worldwide from 1980 to 2016. The updated data shows a continuation of the trends previously observed whereby climate-related extreme events are rising, with a particularly sharp increase in hydrological events. (Data from MunichRE Natcatservice/EASAC)

New data updates earlier findings on extreme weather events

The European Academies’ Science Advisory Council (EASAC; Halle, Germany) recently released a publication that updates a previous 2013 EASAC report with new data showing that extreme weather events have become more frequent during the past 36 years. The new findings — which confirm the conclusions in the original report and extend the previous analysis — […]

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Porous pavement strengthened with waste carbon fiber composite material maintained infiltration rates above acceptable levels. (Photo courtesy of Washington State University)

Researchers use waste carbon fiber to strengthen permeable pavement

Researchers in the Department of Civil and Environmental Engineering at Washington State University have demonstrated that permeable pavement can be improved with the addition of recycled carbon fiber composite material. Associate research professor Karl Englund and Assistant professor Somayeh Nassiri supplemented permeable concrete mixes with composite scraps sourced from Boeing (Chicago) manufacturing facilities and found […]

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Roadway runoff causes long-term sensory damage in Pacific Northwest salmon

Toxic roadway pollutants captured and conveyed by stormwater pose a serious threat to coho salmon and other fish in the Pacific Northwest’s urban watersheds. New research from Washington State University (WSU; Vancouver) shows that green infrastructure can help reduce mortality rates, but that pollutants can still potentially make fish more susceptible to predators.   Salmon’s […]

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