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  2. United States regulation of point source water pollution

    en.wikipedia.org/wiki/United_States_regulation...

    The Phase II rule required that all municipalities, construction sites of 1 acre (4,000 m 2) or more, and other large property owners (such as school districts) have NPDES permits for their stormwater discharges. EPA published the Phase II regulation in 1999. [32] Map of municipal separate storm sewer systems. About 855 Phase I MS4s and 6,695 ...

  3. Discharge Monitoring Report - Wikipedia

    en.wikipedia.org/wiki/Discharge_Monitoring_Report

    A Discharge Monitoring Report (DMR) is a United States regulatory term for a periodic water pollution report prepared by industries, municipalities and other facilities discharging to surface waters. [ 1 ] : 8–14 The facilities collect wastewater samples, conduct chemical and/or biological tests of the samples, and submit reports to a state ...

  4. Nonpoint source water pollution regulations in the United States

    en.wikipedia.org/wiki/Nonpoint_source_water...

    The rule states that the CWA specifically exempts agricultural storm water runoff from being considered a point source, but based on the court's decision in the Waterkeeper case, EPA may treat land applications of excessive amounts of manure as a point source. While in general agricultural storm water runoff from CAFOs is a nonpoint source ...

  5. Industrial stormwater - Wikipedia

    en.wikipedia.org/wiki/Industrial_stormwater

    The other states have developed their own state-specific industrial stormwater permits (e.g. California's Industrial General Permit). [8] State-issued general permits often include the same requirements as EPA's permit, but some states have additional requirements. [6] A silt fence is a type of sediment control used on construction sites.

  6. Best management practice for water pollution - Wikipedia

    en.wikipedia.org/wiki/Best_management_practice...

    Stormwater management, as a specialized area within the field of environmental engineering, emerged later in the 20th century, and some practitioners have used the term BMP to describe both structural or engineered control devices and systems (e.g. retention ponds) to treat polluted stormwater, as well as operational or procedural practices (e ...

  7. Stormwater Pollution Prevention Plan - Wikipedia

    en.wikipedia.org/wiki/Stormwater_Pollution...

    The Stormwater Pollution Prevention Plan, often abbreviated as SWPPP or SW3P, is a plan created by constructors to show their plans for sediment and erosion control. [1] Typically these plans are part of an overall design that details procedures to be followed during various phases of construction.

  8. Water Resources Development Act of 1992 - Wikipedia

    en.wikipedia.org/wiki/Water_Resources...

    Amends the Federal Water Pollution Control Act to provide that the Environmental Protection Agency or the State shall not require a permit for stormwater discharges; and not later than October 1, 1993 (currently, 1992) the EPA shall issue regulations that designate certain storm water discharges to be regulated to protect water quality and ...

  9. Combined sewer - Wikipedia

    en.wikipedia.org/wiki/Combined_sewer

    Combined sewer outflow into the Anacostia River in Washington, D.C. Ratcliff Beach CSO discharges into the River Thames in London [7]. These relief structures, called "storm-water regulators" (in American English - or "combined sewer overflows" in British English) are constructed in combined sewer systems to divert flows in excess of the peak design flow of the sewage treatment plant. [6]

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