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Latest Surface runoff Stories

2011-07-14 00:00:29

Retenu, now available from StormwateRx, is a new stormwater roughing filtration system that is ideal for heavy industrial sites where sediment is prevalent in stormwater runoff. Retenu is fully automated and chemical-free and can be used as a pretreatment to Aquip® or Purus® stormwater filtration systems or as a stand-alone filter to remove sediment from stormwater runoff. Portland, OR (PRWEB) July 12, 2011 StormwateRx LLC, a provider of industrial stormwater treatment and...

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2011-06-30 05:05:00

The number of U.S. beach closings and health advisories reached 24,091 in 2010, the second-highest level in 21 years, according to an annual beach water report released Wednesday by the Natural Resources Defense Council (NRDC). The survey of water quality and public notifications, entitled "Testing the Waters", confirms that our nation's beaches continue to suffer from bacterial pollution that puts swimmers at risk, the non-profit group said. Using data gathered at more than 3,200 U.S....

2011-06-22 15:11:00

ATLANTA, June 22, 2011 /PRNewswire/ -- Geosyntec Consultants (Geosyntec) announced today it received funding for the design, installation, measurement, and analysis of two projects incorporating actively controlled, distributed green infrastructure ("high-performance green infrastructure") approaches for urban stormwater control under a New York City Department of Environmental Protection (DEP) Green Infrastructure Grant Program. Both projects focus on leveraging advanced technology in...

2011-06-08 20:50:23

Results imply chemical pollution could be degrading water quality in streams around mid-Atlantic A new study from biology researchers at Baylor University and the University of Maryland-Baltimore has found that there are consistent and widespread declines in stream biodiversity at lower levels of urban development more damaging than what was previously believed. The study found that aquatic life actually shows significant loss of biodiversity with less than two percent of developed land in a...

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2011-04-07 08:40:58

Biologically diverse streams are better at cleaning up pollutants than less rich waterways, and a University of Michigan ecologist says he has uncovered the long-sought mechanism that explains why this is so. Bradley Cardinale used 150 miniature model streams, which use recirculating water in flumes to mimic the variety of flow conditions found in natural streams. He grew between one and eight species of algae in each of the mini-streams, then measured each algae community's ability to soak...

2011-03-22 23:22:20

Field tests by University of Missouri scientists have backed up laboratory research indicating that buffer strips of grass and other plants can reduce the amount of herbicide and veterinary antibiotics in surface runoff from farm plots. Vegetative buffer strips have already proven effective in limiting erosion as well as reducing sediment and nutrients in runoff. The findings come amid concerns about the potential of veterinary antibiotics in surface water leading to the emergence of...

2011-03-22 13:04:32

U.S. Department of Agriculture (USDA) scientists are helping meet the water demands of a riparian desert region that is home to a national conservation area and a thriving military base. Agricultural Research Service (ARS) hydraulic engineer Dave Goodrich and hydrologist Russ Scott have been part of Arizona's Upper San Pedro Partnership (USPP)-a mix of 21 federal, state, and local groups managing the region's water-supply needs-since the association started in 1998. ARS is USDA's chief...

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2011-03-11 09:12:17

Over 50 percent of the population in the United States and over 60 percent in the world live in coastal areas. Rapidly growing human populations near the ocean have massively altered coastal water ecosystems.  One of the most extensive human stressors is the discharge of chemicals and pollutants into the ocean. In the Southern California Bight, more than 60 sewage and urban runoff sources discharge over 1 billion gallons of liquid on a dry day with the two largest sources of contaminants...

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2011-02-28 08:35:00

The global demand for fresh water will exceed the available supply by an estimated 40% within the next 20 years, according to research scheduled to be presented at a Canadian Water Network (CWN) conference this week. Roughly 300 scientists, economists, and policy makers will attend the international summit, which will be held in Ottawa from February 28 through March 3, according to a CWN press release. In addition to research findings, speakers and other participants will present new...

2011-02-23 17:46:53

Much of the Mississippi River's sediment load doesn't come from field runoff, according to work by scientists at the U.S. Department of Agriculture (USDA). Instead, the scientists with USDA's Agricultural Research Service (ARS) have confirmed that stream bank collapse and failure can be chief contributors to high sediment levels in the silty streams and rivers that flow into the Mississippi. ARS is USDA's chief intramural scientific research agency. The U.S. Environmental Protection Agency...


Latest Surface runoff Reference Libraries

Erosion
2013-04-01 12:48:39

Erosion is the process by which rock and soil are taken from the surface of the Earth by exogenetic processes like wind or the flow of water, and then transported and deposited in another location. While erosion is a natural process, human activities have increased by 10 to 40 times the rate at which erosion is happening globally. Excessive erosion results in problems such as desertification, decreases in agricultural productivity because of land degradation, sedimentation of waterways,...

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2009-07-06 17:58:20

The water cycle (or hydrologic cycle) describes the continuous movement of water above, below, and on the planet. Since the water cycle is in fact a "cycle", there is no beginning or end. Water exists in three states: liquid, vapor, and ice. Although the balance of water on our planet is fairly constant, individual water molecules may come and go. The water cycle is driven by the sun. The sun heats the oceans and allows water to evaporate into the air. The sun also heats snow and ice which...

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Word of the Day
virgule
  • A punctuation mark (/) used to separate related items of information.
  • A little rod; a twig.
This word comes from the Late Latin 'virgula,' accentual mark, a diminutive of 'virga,' rod.
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