Tag: stormwater runoff

Surface runoff (also known as overland flow) is the flow of water that occurs when excess stormwater, meltwater, or other sources flows over the earth’s surface. This might occur because soil is saturated to full capacity, because rain arrives more quickly than soil can absorb it, or because impervious areas (roofs and pavement) send their runoff to surrounding soil that cannot absorb all of it. Surface runoff is a major component of the water cycle. It is the primary agent in soil erosion by water.

Rainwater Harvesting

Rainwater Harvesting

Although various forms of rainwater harvesting have been used for thousands of years, as an organized industry, it is still in its infancy. At present, no national standards are in place regulating its use, although various states and municipalities have begun promulgating laws concerning how rainwater may (or may not)

Deploying Plastic Against Itself

Deploying Plastic Against Itself

The amount of plastic debris in the oceans now amounts to hundreds of millions of tons, much of it concentrated in gyres or patches each the size of a largish US state. Although it doesn’t really go away, plastic does break down into smaller pieces—microplastics—that are easily ingested by birds

Managing Daily Cover and Drainage at MSW Landfill Sites

Managing Daily Cover and Drainage at MSW Landfill Sites

Today’s municipal solid waste (MSW) landfills are much more than places to dump household trash. They’re engineered facilities that are designed to hold and isolate the trash from the environment and are governed by both federal and state regulations.

Landfill designers and operators face two main challenges to the integrity of

Updates in Hydraulic and Hydrologic Modeling Software

Updates in Hydraulic and Hydrologic Modeling Software

Developers of hydraulic and hydrologic modeling software have recently unveiled exciting new program updates and products to increase the efficiency and effectiveness. Dramatic decreases in model run times, thoughtful assembly of multiple information sources, and greater flexibility within hydrologic connectivity options demonstrate just a few ways these changes have improved

EPA Announces Winners of the Fifth Annual Campus RainWorks Challenge

EPA Announces Winners of the Fifth Annual Campus RainWorks Challenge

WASHINGTON—The U.S. Environmental Protection Agency (EPA) today announced the winners of its fifth annual Campus RainWorks Challenge, a national college competition to engage the next generation to design solutions for stormwater pollution using green infrastructure. Student teams proposed designs that help aid innovative problem solving for their campus and community.

Stormwater is

ShowCase

CULTEC
CULTEC’s Contactor and Recharger chambers may be installed in a trench configuration along roadsides as an alternative to swales. Not only is an underground stormwater solution easier to maintain, it is also aesthetically more pleasing than traditional swales. The subsurface installation eliminates a potential trash collection site and exposed ponding—which

Project Profile: Gray Combined With Green—Retrofit of Existing Bioretention Facility With High-Flow Bioretention Technology

Project Profile: Gray Combined With Green—Retrofit of Existing Bioretention Facility With High-Flow Bioretention Technology

Surface stormwater treatment practices have a common use in development projects to provide collection and control of contaminants generated from runoff from impervious surfaces. Common surface stormwater treatment practices include wet ponds, grass swales and channels, and bioretention facilities. Grass swales and bioretention facilities rely upon filtration provided by the

What’s Hot in Modeling Software

What’s Hot in Modeling Software

Developers of hydraulic and hydrologic modeling software have recently unveiled exciting new program updates and products to increase the efficiency and effectiveness. Dramatic decreases in model run times, thoughtful assembly of multiple information sources, and greater flexibility within hydrologic connectivity options demonstrate just a few ways these changes have improved

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