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MPCA Approves Reissuance of MS4 Permit

Storm drainThe Minnesota Pollution Control Agency (MPCA) Citizens’ Board recently approved reissuance of a permit that helps protect water quality by reducing the amount of polluted runoff that reaches streams, rivers, and lakes. The Municipal Separate Storm Sewer System (MS4) permit regulates stormwater discharges from counties, cities, townships, and other government entities in urbanized areas. The goal of the MS4 program is to prevent or reduce the discharge of pollutants to stormwater, and ultimately, surface waters.

Jeff Hruby, AE2S Water Resources Group Manager, says, "The 2013 MS4 permit contains several improvements and changes from the 2006 permit. Municipalities authorized to discharge stormwater under the recently reissued permit will be required to update their existing stormwater management programs to include practices that will more effectively reduce the contamination of stormwater runoff and prohibit illicit discharges to Minnesota’s water resources."

Examples of these practices include:

  • Impaired waters: Preventing or reducing the discharge of specific pollutants identified as causing or contributing to a water quality impairment, as defined in Total Maximum Daily Load studies approved by the U.S. Environmental Protection Agency.
  • Illegal discharges: Mapping all storm sewer pipes 12 to 24 inches in diameter to better facilitate tracking, investigating and eliminating illegal discharges, and training all field employees to recognize and report illegal discharges.
  • Erosion and sediment control: Updating local erosion- and sediment-control programs to be at least as stringent as the statewide standards established by the MPCA.
  • Construction: Ensuring developers and contractors implement stormwater control measures that mimic natural conditions (infiltration, evapotranspiration, water reuse, etc.) so that postconstruction stormwater runoff volume is not greater than preconstruction runoff volume.

For more information about stormwater programs, contact Jeff Hruby at Jeff.Hruby@ae2s.com or 701-221-0530. You can also access more information about MS4 Permits from the MPCA website by clicking here.

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If you have any questions concerning the content of this newsletter,
please contact Heather Syverson at 701-364-9111 or Heather.Syverson@ae2s.com.
 
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