Related to this Question How is groundwater flow primarily controlled? How does a stormwater runoff system store water? How does water leave an aquifer? How does groundwater accumulate? How does runoff affect the water cycle? What does runoff water do?
Sediment basins are the single best form of sediment control, but the outlet structure discharge rate is key to optimizing performance. Several options have been utilized to control the discharge rate and dwell time within the basin, but the standard method of discharge has traditionally been a ...
Our stormwater drains are getting extra work this year. And with more rainfall in the forecast this week, it's put a certain problem front and center. We wanted to know: How can we reduce stormwater runoff? And why is it a concern? Good Question. Jeff Wagner got an up close look at...
"Managing stormwater is something all of us can play part in," said Ryan Anderson, stormwater program manager for the Minnesota Pollution Control Agency. But what is the main concern with stormwater runoff? "In many watersheds, stormwater can be one of the primary contributors of pollutants to ...
asphalt. They allow water to seep through the gaps between each paver and filter to the ground below, helping to control stormwater runoff and erosion. Homeowners can choose from an abundance of stylish and unique options, from plastic grid pavers with grass infill to composite interlocking pavers...
(Caban et al.2015)), to the groundwater used for drinking water. Of course, the presence of pharmaceuticals in stormwater is not caused by their presence in air and natural dust (there is currently no evidence of their presence in these matrices), but by runoff, illegal dumping of ...
Excess nutrients in the pond are often caused by overfeeding fish, stormwater runoff, stocking too many fish, or a lack of proper pond filtration. Suspended algae blooms often occur in the spring when the season is beginning to change, but the water remains at lower temperatures. Low water ...
Other runoff coefficients use different units of measurement for the other variables such as area in m2and intensity in mm/hr. Several runoff coefficient tables exist for calculating stormwater runoff, such theRunoff Coefficient (C) Fact Sheetby the California State Water Resources Control Board. Onl...
Stormwater runoff is a leading source of the pollutants entering our waterways. According to the U.S. Environmental Protection Agency, about 90 percent of surface pollutants are carried by the first 1-1/2 inch of rainfall. Stormwater drains don't typically channel this polluted runoff to treatmen...
Using pervious concrete is recognized as a Best Management Practice for Stormwater by theUS Environmental Protection Agency(EPA), since it provides pollution control. The drainage systems used to control stormwater runoff are becoming more difficult to build, due to their size and the cost of meetin...