‘How high is your river?’ asks CrowdHydrology citizen science project

In 2010, a smartphone-based campaign that called on motorists to report roadkill sightings in California via text message inspired University of Buffalo (UB; N.Y.) hydrogeologist Chris Lowry to undertake an ...

WEF Stormwater Institute announces 2018 MS4 Award winners

On Monday, Oct. 1, 22 agencies received recognition by the fourth annual WEF National Municipal Stormwater and Green Infrastructure Awards Program. The winners received their awards at the Stormwater Congress ...

World Water: Stormwater Management

Read the latest online issue of World Water: Stormwater Management, a quarterly international publication from the Water Environment Federation.


Federal stormwater legislation update: U.S. Congress passes policies proposed by WEF and partners

When President Trump signed into law the America’s Water Infrastructure Act (S. ...

Abstracts due Nov. 12 for the WEF Stormwater and Green Infrastructure Symposium 2019

The Water Environment Federation is enthusiastically soliciting research, technology, operations, regulatory, environmental, ...

MS4 survey results executive summary released at WEFTEC

Earlier this year, WEF’s Stormwater Institute (SWI) conducted the National Municipal Separate ...

Latest News

Green infrastructure limits flood risk, say insurers

A new Insurance Bureau of Canada (IBC; Toronto, Ontario) report urges communities to consider green infrastructure to limit flood risk. IBC is the national industry association representing Canada’s private home, auto, and business insurers. Its member companies make up 90% of the property and casualty insurance market in Canada. The report, Combatting Canada’s Rising Flood […]

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Satellite data helps volunteer group build rainwater systems for Middle-East schools

In the Middle East and North Africa, the World Bank estimates that as much as 85% of the region’s water supplies is used to irrigate crops. This irrigation combined with groundwater depletion and the effects of climate change leads much of the region to face chronic water shortages. Outside major metropolitan centers, inadequate water supplies […]

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Modified sand treats stormwater, protects groundwater

A research team from the University of California–Berkeley (UCB) is exploring how alternative water sources, such as stormwater, could be repurposed to help keep aquifers brimming. Joseph Charbonnet, a UCB graduate student and the lead author of a study that recently appeared in the journal Environmental Science & Technology, claims that a new treatment medium […]

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U.S. EPA seeks input on regulatory approach for managing excess flows

The U.S. Environmental Protection Agency (EPA) will host three public listening sessions to seek input on a rulemaking effort aimed at providing certainty surrounding the management of peak wet weather flows at certain municipal wastewater treatment plants. “EPA is taking action to provide municipalities with sought-after regulatory certainty so that facilities can optimize wastewater treatment […]

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Digital stormwater management puts valuable information in the cloud

Starting in early 2017, citizens curious about how Chicago’s bioswales and porous asphalt handled storms could log on and watch real-time data upload to their screens. Though the portal is no longer being updated, the test project it represented was a success. This May, the City Tech Collaborative, based at the UI LABS nonprofit research […]

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University of Arizona researchers take a fresh look at an age-old agricultural myth

A theory in debate since the mid-1800s holds that disturbing the soil in dry regions through agriculture allows rain to seep into the ground, raising moisture in the area and eventually coaxing more rain to fall. In other words, according to the University of Nebraska–Lincoln Center for Great Plains Studies, “rain follows the plow.” Support […]

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2018 U.S. EPA Campus RainWorks Challenge now open for registration

The U.S. Environmental Protection Agency’s (EPA) annual Campus RainWorks Challenge is now accepting registrants until Sept. 30. This annual competition seeks to engage with the next generation of environmental professionals; foster a dialogue about effective stormwater management; and showcase the environmental, economic, and social benefits of green infrastructure practices. To participate in this competition, teams […]

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First-ever NMSA State of Stormwater report highlights common challenges for U.S. MS4 permittees

The National Municipal Stormwater Alliance (NMSA; Alexandria, Va.), a group of municipal separate storm sewer system (MS4) permittees from around the U.S., released its first annual state-by-state review of MS4 program updates, challenges, and needs on Aug. 13. The 2018 NMSA State of Stormwater report analyzes the effectiveness of MS4 programs in 14 states and […]

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Biofiltration scores big in sports stadium runoff treatment

A self-sustaining biofiltration system prevents flooding in San Francisco’s sport stadium and protects the nearby San Francisco Bay and freshwater resources from stormwater pollutants. Mark Lehnerz of Oldcastle Precast explains how. A large construction project such as a major-league sports stadium can include significant expanses of runoff-generating hardscapes. A venue capable of seating nearly 70,000 […]

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New Orleans offers green-infrastructure grants to residents of flood-prone Gentilly neighborhood

Located along the shore of Lake Pontchartrain, New Orleans’ low-lying Gentilly neighborhood has been a hotbed of flood-control innovation in recent years. As the city’s first “resilience district,” municipal government organizations are collaborating to invest more than $140 million into Gentilly to demonstrate groundbreaking pilot projects that address the area’s chronically stressed drainage systems and […]

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