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  2. 2014 Dan River coal ash spill - Wikipedia

    en.wikipedia.org/wiki/2014_Dan_River_coal_ash_spill

    These ponds have been found to have leaks that can dispose hazardous material into surface water among other things. [9] EPA has identified at least 25 coal ash ponds in the southeast that are "high hazard". [10] This material was released into the Dan River because of the collapse of a 48 inch drain pipe. [8]

  3. Leachate - Wikipedia

    en.wikipedia.org/wiki/Leachate

    The collection pipe network of a leachate collection system drains, collects, and transports leachate through the drainage layer to a collection sump where it is removed for treatment or disposal. The pipes also serve as drains within the drainage layer to minimize the mounding of leachate in the layer.

  4. Nonpoint source pollution - Wikipedia

    en.wikipedia.org/wiki/Nonpoint_source_pollution

    This runoff is often classified as a type of NPS pollution. Some people may also consider it a point source because many times it is channeled into municipal storm drain systems and discharged through pipes to nearby surface waters. However, not all urban runoff flows through storm drain systems before entering water bodies. Some may flow ...

  5. Leak at wastewater pond prompts evacuations in Florida - AOL

    www.aol.com/news/leak-wastewater-pond-prompts...

    Florida Gov. Ron DeSantis declared a state of emergency Saturday after a significant leak at a large pond of wastewater threatened to flood roads and burst a system that stores polluted waters.

  6. Infiltration/Inflow - Wikipedia

    en.wikipedia.org/wiki/Infiltration/Inflow

    Groundwater entering sanitary sewers through defective pipe joints and broken pipes is called infiltration. [4] Pipes may leak because of careless installation; they may also be damaged after installation by differential ground movement, heavy vehicle traffic on roadways above the sewer, careless construction practices in nearby trenches, or degradation of the sewer pipe materials.

  7. Flow device - Wikipedia

    en.wikipedia.org/wiki/Flow_device

    Beavers diligently plug leaks in their dams because their survival depends upon the cover provided by the water in their pond. If a beaver can detect the flow of pond water into a pipe, it will plug the pipe with mud and sticks. To be successful, a beaver dam pipe must eliminate the sound and feel of water flowing into the pipe.

  8. Rock Creek (Potomac River tributary) - Wikipedia

    en.wikipedia.org/wiki/Rock_Creek_(Potomac_River...

    The pools raise the water level and allow fish to swim over a partially-submerged sewer pipe that crosses the creek. In 2006, the National Park Service finished a project to remove or bypass eight fish barriers in the creek by adding a fish ladder to bypass the 1905 Peirce Mill Dam, modifying historic fords , and removing abandoned sewage lines ...

  9. Facultative lagoon - Wikipedia

    en.wikipedia.org/wiki/Facultative_lagoon

    Facultative lagoon (polishing pond) providing tertiary treatment after a constructed wetland in Hamburg-Allermöhe, Germany. Overflow from the facultative lagoon may be routed through one or more polishing ponds supporting lower populations of anaerobic micro-organisms and a higher proportion of aerobic organisms adapted to survival in lower concentrations of organic material.