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St. Bonifacius

Erosion Control:

  • Exposing 5,000 square feet of soil
  • Grading, excavating, filling, or on-site storing of 50 cubic yards of soil 

Floodplain Alteration:

Wetland Protection:

  • Draining, filling, or excavating of a wetland
  • Any project that already requires a permit under the Stormwater Management or Waterbody Crossings & Structures rule, if there is a wetland on the property
  • Building on undeveloped lots or tear down/rebuild projects that increases the amount of hard surface


  • Dredging in the beds, banks, or shores of any public water, basin, or watercourse

Shoreline and Streambank Stabilization:

Waterbody Crossings & Structures:

  • Placing or replacing roads, highways, utilities or other structures in contact with the bed or bank of any water body
  • Building a bridge or related crossing of any water body
  • Enclosing a water body within a pipe
  • Directional boring underneath a waterbody

Stormwater Management:

  • Work that will increase the area of impervious surface or change land contours to alter the drainage ways, increase peak runoff rates, or affect the quality of stormwater flows. This applies to residential, commercial, institutional, industrial, or public land development or redevelopment projects.

Appropriations Rule:

  • All projects within Hennepin County that  take up to 10,000 gallons per day and up to 1,000,000 gallons per year of surface water for a nonessential use from:
    • A public water basin or wetland that is less than 500 acres in surface size
    • A protected watercourse that has a drainage area of less than 50 square miles
  • *Lake Minnetonka is not subject to the appropriations rule

Illicit Discharge:

  • Projects that propose a new direct connection or the replacement of an existing connection to the District's MS4 conveyance system