The U.S. Environmental Protection Agency's (EPA) proposed a new National Pollution Discharge Elimination System (NPDES) general permit regulating stormwater discharges from construction activities. This draft 2017 Construction General Permit (CGP) will replace the 2012 version, set to expire in February 2017, and generally applies to construction site operators disturbing one or more acres of land.

These are a few of  changes included in the proposed draft:

  1. Prohibits hazardous substances, such as paint or caulk containing polychlorinated biphenyls (PCBs), from authorized non-stormwater discharges of external building washdown waters;
  2. Requires permittees to include the U.S. EPA’s contact information in the public notices that are already required to be posted in a prominent location near construction sites;
  3. Requires permittees to cover or use another method of temporary stabilization for inactive soil stockpiles and land clearing debris piles where the piles will be unused for 14 or more days (the 2012 CGP only requires coverage “where practicable”);

And here are a few of the potential changes that could me made:

  1. Requiring sites with multiple operators to submit a group Stormwater Pollution Prevention Plan (SWPPP);
  2. Modifying the standard deadline to complete site stabilization once initiated to seven calendar days from 14 days (currently only sensitive sites are subject to the seven day deadline);
  3. Requiring additional controls to ensure that pollutants in construction dewatering discharges are minimized;

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