Tag: national pollutant discharge elimination system

The NPDES permits program is authorized by CWA section 402. The initial permits issued in the 1970s and early 1980s focused on POTWs and industrial wastewater—typically “process” wastewater and cooling water where applicable, and in some cases, industrial stormwater. The 1987 WQA expanded the program to cover stormwater discharges explicitly, both from municipal separate storm sewer systems (MS4) and industrial sources. The MS4 NPDES permits require regulated municipalities to use Best Management Practices to reduce pollutants to the “Maximum Extent Practicable.”

Editor’s Comments: Where Do We Go From Here?

Editor’s Comments: Where Do We Go From Here?

A little more than two years ago, I wrote an editorial for Stormwater—Erosion Control’s sister publication—about the agri­cultural exemption from many of our water-quality regulations. While urban areas and construction sites are subject to National Pollutant Discharge Elimination System permits and other requirements, agricultural operations have less oversight, and their

Sand Filter Systems with Detention: A Perfect Solution

Sand Filter Systems with Detention: A Perfect Solution

For stormwater detention and filtration in small, highly impervious drainage areas, sand filter systems with detention may be the perfect solution. In urban areas, they may sometimes be the only solution. They’re appropriate for commercial, municipal, and industrial operations.

Regulating Animal Feeding Operations: A New Attempt

Regulating Animal Feeding Operations: A New Attempt

They say optimism is seeing the glass half full. They also say one definition of insanity is doing the same thing over and over and expecting a different result. You can decide for yourself whether 35 of the country’s environmental groups are optimistic or crazy, but they’re trying something that

An Approach for Communities to Assess Stormwater Application and Detention Requirements for Overall Watershed Health

An Approach for Communities to Assess Stormwater Application and Detention Requirements for Overall Watershed Health

Communities, especially those with limited resources, face many issues when trying to protect their local watersheds through the use of stormwater policies. Stormwater policies that are imposed on new development have the ability to enhance a community’s overall watershed health (Ferguson 1998). However, past requirements often relate only to large

How Trackout and Wheel-Washing Systems Can Improve Profitability

How Trackout and Wheel-Washing Systems Can Improve Profitability

Contractors who use trackout cleanup equipment such as automatic wheel-washing systems merely to comply with environmental site regulations may be taking the wrong approach. Plenty of reasons exist for “taking the high road” and adopting these systems—namely minimizing operating costs, which can allow for more competitive bidding, and maintaining a

Chemical Soil Stabilization – Part 1

Chemical Soil Stabilization – Part 1

Despite all the work done by earthmoving equipment, each year wind and rain move much more soil than man could ever hope to shovel. And because soil is a finite commodity, one has to hold on to as much of it as possible.

Plantings aid in this quest; the roots of

Two Ways to Install Silt Fences

Two Ways to Install Silt Fences

The right way, it turns out, has a lot of variables, as any contractor knows. The choices are dictated by the type of soil, the slope gradient, and the length of time a job may take, as well as other influences. The wrong way often has…

Compost: The Sustainable Solution

Compost: The Sustainable Solution

The use of recycled organics is one of our nation’s greatest assets, and we can utilize them to address several of society’s vexing challenges. The commercialization of composting as an economic method to manage organic (carbon-based) “wastes” got its rebirth in the late 1970s, and has grown from coast to

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