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.”

Meters, Metrics, and People Power

Meters, Metrics, and People Power

A long row of gently aging tin cabins lines the wooded shore of Douglas Lake in Munro Township on the northern tip of Michigan. First built in 1908, the cabins, rustic and durable on the exterior, undergo interior makeovers on a regular basis to keep pace with the ever-changing tastes

When the Job Site Has No Set Perimeters

Construction projects that fall into the category of being “linear” include those that don’t have or adhere to a set grid or perimeter. Utility projects such as pipeline renovation or installation are commonly linear. Power and cable utility towers that will be on an irregular piece of ground, as well

Transforming Springfield’s Mill Race Into a Community Asset

Transforming Springfield’s Mill Race Into a Community Asset

The Mill Race Stormwater Facility, one of the largest regional water quality treatment ponds in the city of Springfield, OR, includes a vegetated drainage swale, trailhead, and a multi-use path enhancing the historic Mill Race for recreational values and wildlife habitat. The project included the involvement of multi-disciplinary local agencies

Editor’s Comments: The Learning Curve

Editor’s Comments: The Learning Curve

Welcome to our “back to school” issue. The first article covers, in part, the winners of EPA’s fifth annual Campus RainWorks Challenge. For those of you who aren’t familiar with it, it’s a design competition open to colleges and universities throughout the US that encourages teams of students to design

Reader Profile: James Spotts

Reader Profile: James Spotts

James W. Spotts’ vehicle license tag reads “Dr. Dirt.” It’s an apt description for his career as a soil scientist, which now focuses on his company, Southeast Environmental Consultants, in Atlanta, GA. The seeds were sown when, as a child in north Florida, Spotts dug a hole into sandy soil

US EPA and California Approve Permit for Point Loma Wastewater Facility

US EPA and California Approve Permit for Point Loma Wastewater Facility

Advanced treatment will reduce discharges to ocean, provide sustainable water source

The US Environmental Protection Agency and the San Diego Regional Water Quality Control Board finalized a City of San Diego wastewater discharge permit to protect ocean water quality and increase water reuse. The Clean Water Act National Pollutant Discharge Elimination

A Five-Year Study of IDDE Data

A Five-Year Study of IDDE Data

Pierce County’s Surface Water Management (SWM) division is charged with maintaining both the natural surface water systems and the stormwater collection and conveyance infrastructure within its unincorporated 1,800-square-mile service area (population 380,000). These areas include an impressive variability in landscapes: from glacial streams of Mt. Rainier to fertile farmlands of

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