Waukesha County

Permit Extension / Amendment Form

Sites Needing Erosion Control Plan ONLY
Projects that the Land Resources Division may determine as not needing a Stormwater Management Plan include:

  • Pond construction/BMP Maintenance
  • Small building/grading/filling projects
  • Referrals form the zoning office or Town
  • Utilities (>300 linear feet)



Sites Needing Stormwater Management Plans

Projects that may require a Stormwater Management Plan include:

  • Buildings, parking lots & roads that add 0.5 acres or greater of impervious surfaces
  • Subdivision plats
  • Minor land divisions e.g. CSMs
  • Any new road
  • New or expanding gold courses
  • Other sites, as determined by the Land Resources Division