The sustainable design of King County's Georgetown Wet Weather Treatment Station includes a green roof, rain gardens, and cisterns to filter and collect stormwater. (Photo courtesy of King County)

WIFIA-financed King County, Wash., stormwater treatment project to protect water quality in the Duwamish River

Construction is underway in the Georgetown neighborhood of Seattle, Wash., on a combined sewer overflow (CSO) wet weather treatment station that will treat up to 265 million L/d (70 mgd) ...

Historic D.C. cemetery partners with environmentalists to reduce impervious space

To help lower monthly stormwater fees and the capacity for runoff generation at the Mount Olivet Cemetery in Washington, D.C., the Catholic Archdiocese of Washington (D.C.) has partnered with the ...

World Water: Stormwater Management

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

Spotlight

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 ...
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 ...
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 ...

Latest News

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 […]

Continue Reading

State-of-the-art Hong Kong flooding project recognized for innovation and creativity

Located between a busy highway and Hong Kong’s Victoria Harbour, Happy Valley Recreation Ground is a heavily frequented hotspot for locals and tourists alike. But during the rainy season, the appeal of the low-lying neighborhood’s museums, sports fields, and horse-racing track is compromised by its high susceptibility to stormwater flooding. In 2008, for example, the […]

Continue Reading
These three tanks are part of the 113,500-L (30,000-gal) capacity stormwater capture and reuse system at the Grand Hyatt Atlanta. In all, the system has eight tanks. Stormwater, air conditioner condensate, and ice machine meltwater are collected and reused in the hotel’s cooling towers.

Simple hotel stormwater capture and reuse system benefits local environment

While rainy days during a vacation or business trip aren’t ideal, the Grand Hyatt Atlanta hotel in the Buckhead area of Atlanta, uses a simple stormwater collection and reuse system to make the most of wet weather. The hotel captures rain water from flat portions of its roof and an outdoor zen garden. It also […]

Continue Reading

U.S. EPA and USGS collaborate on new surface-water modeling tool

The U.S. Geological Survey (USGS) is working with the U.S. Environmental Protection Agency (EPA) to combine two popular streamflow analysis tools into a single, integrated resource. The Surface Water Toolbox (SWToolbox), which has not yet been released to the public, will allow users to compute an extensive number of metrics associated with modeling how surface […]

Continue Reading

Study: To combat toxic algal blooms, focus on phosphorus

The results of an experiment spanning nearly a half-century at the International Institute for Sustainable Development (IISD; Winnipeg, Manitoba, Canada) claim that if water stewards want to stem the growth of harmful algal blooms, they should focus on phosphorus rather than nitrogen. The discovery, made by the same research organization credited with identifying phosphorus as […]

Continue Reading

Largest-ever USC construction project captures stormwater and refills aquifers

In August 2017, the University of Southern California (USC; Los Angeles) cut the ribbon on USC Village, considered the largest development in the history of the university. The 6-ha (15-ac), $700 million community hub is located at the northern edge of the university’s main campus. It features two grocery stores, 25 restaurants and retailers, a […]

Continue Reading

Boston releases 50-year floodproofing plan to meet climate risks

Boston was built on climate resiliency planning. Early residents gradually filled in low-lying Atlantic Ocean tidelands as the city expanded. They turned small islands and peninsulas into neighborhoods high enough above sea level to prevent flooding from typical tides and storms. Today, some of these areas, such as East Boston and Charlestown, are among the […]

Continue Reading

Stormwater practices fail to remove road salt

Road salts commonly used in the winter to melt ice and keep roads clear are not being effectively absorbed by mitigation measures, allowing the salt to reach groundwater and wells, according to Joel Snodgrass, professor and head of the Department of Fish and Wildlife Conservation at Virginia Tech (Blacksburg, Va.). “Current stormwater management practices don’t […]

Continue Reading
Habitual flooding affects many parts of low-lying South Carolina during heavy rainstorms. With mounting pressure for municipalities to address their stormwater readiness, diverse South Carolinian communities are implementing equally diverse tactics and fundraising schemes to limit runoff pollution. (U.S. Department of Agriculture)

South Carolina municipalities find success with site-specific stormwater management plans

In South Carolina, which barely escaped the brunt of Hurricane Irma last summer, municipal stormwater managers are demonstrating that there is no “one-size-fits-all” solution to limit runoff pollution. And as the risks of poorly conceived stormwater management plans heighten with more frequent and more intense precipitation, the state’s big cities and beach towns are taking […]

Continue Reading
City of Dayton Department of Water / Art: Ashley Simons

Dayton, Ohio, storm-drain murals remind public to keep contaminants out of waterways

The City of Dayton (Ohio) Department of Water wants to make sure citizens understand that stormwater pushes whatever contaminants are in the streets into storm drains and out into local waters. Rather than building signposts next to storm drains or mailing out informational flyers, the utility, which serves an area alongside the Great Miami River, has […]

Continue Reading