Environmental Rules in Dearborn, MI (2026)
5 verified environmental rules for Dearborn, Michigan, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Dearborn bans dumping anything but storm water into its storm drain system and requires industrial and construction dischargers to hold an NPDES permit before connecting.
Dearborn Storm Sewer Discharge Rules
Significant RestrictionsDearborn Code of Ordinances § 19-196, § 19-202(g)
No person shall throw, drain, or otherwise discharge, cause, or allow others under its control to throw, drain, or otherwise discharge into the MS4 any pollutants or waters containing any pollutants, other than storm water... Any person that has violated or continues to violate this article shall be guilty of a misdemeanor and shall be subject to a fine of $1,000.00 per violation per day and/or...
Erosion Control
Dearborn requires an SESC permit from the building official for any earth change of one acre or more, or within 500 feet of a lake or stream, under the city's Soil Erosion Control division.
Dearborn Soil Erosion Control Permit
Some RestrictionsDearborn Code of Ordinances § 5-188
Prior to undertaking an earth change in the city involving one or more acres of land, or within 500 feet of the water's edge of a lake or stream, an erosion and sedimentation control permit shall be obtained from the building official. Request for a permit shall be initiated by submitting an application and SESC plan in accordance with rule 1703 promulgated under part 91.
Flood Zones
Any new construction, substantial improvement, or land alteration inside a Dearborn area of special flood hazard requires a flood hazard area development permit from the city engineer before work begins.
Dearborn Floodplain Development Permit Rules
Some RestrictionsDearborn Code of Ordinances § 5-1369(a)
A flood hazard area development permit shall be required in conformance with the provisions of this article. Application of such permit shall be on forms furnished by the city engineer. The application shall supply all information required on the form. In addition to the aforestated, the following information shall be provided on a site plan for the subject property. Such site plan shall accomp...
Vehicle Idling Restrictions
Dearborn caps vehicle idling at 5 minutes per hour for occupied vehicles and bans idling entirely for unoccupied ones, with numerous listed exceptions.
Dearborn Vehicle Idling Time Limit
Some RestrictionsDearborn Code of Ordinances § 18-618
No operator of a commercial vehicle shall cause or permit the commercial vehicle to idle: (1) For any period of time while the commercial vehicle is unoccupied; or (2) For more than 5 minutes in any 60-minute period while the commercial vehicle is occupied. No operator of a motor vehicle shall cause or permit the motor vehicle to idle within a posted "No Idling" zone... (1) For any period of ti...
Flood Elevation Requirements
New construction or substantial improvement of a residential structure in a Dearborn flood hazard area must have its lowest floor elevated to or above the base flood elevation, or be certified floodproofed and watertight.
Dearborn Base Flood Elevation Rules
Some RestrictionsDearborn Code of Ordinances § 5-1372
New construction or substantial improvement of any residential structure in all areas of special flood hazard shall either have the lowest floor, including the basement, elevated to or above the level of the base flood elevation or be floodproofed so that the structure is watertight and capable of resisting hydrostatic and hydrodynamic loads and effects of buoyancy. Certification by a registere...
Looking for Wayne County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Dearborn city rules.
Environmental Rules in Wayne County →