Environmental Rules in Pontiac, MI (2026)
4 verified environmental rules for Pontiac, Michigan, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
In the City of Pontiac, City Code Article IX (§§ 58-700 to 58-704) bars anything but stormwater from entering the municipal separate storm sewer system (MS4) or the waters of the State. Illicit discharges and illicit connections to the storm drain system are prohibited outright, with narrow exceptions like landscape irrigation runoff and potable water-line flushing. The Department of Public Works may enter private property to inspect for violations.
Pontiac Bans Illicit Stormwater Discharges
Some RestrictionsPontiac City Code §§ 58-701-58-704
No person shall discharge or cause to be discharged into the MS4 or waters of the State any materials, including but not limited to pollutants or waters containing any pollutants that cause or contribute to a violation of applicable water quality standards, other than stormwater. The commencement, conduct, or continuance of any illicit discharge to the MS4 is prohibited ... The construction, us...
Erosion Control
In the City of Pontiac, no one may perform regulated construction activity that could cause erosion or sedimentation of waterways or overload the storm sewer system without a stormwater construction approval and construction permit under City Code Article IV. The Department of Public Services administers approvals, and violators face a municipal civil infraction citation with civil fines starting at $1,000.00 per infraction.
Pontiac Stormwater Erosion Control Permit
Some RestrictionsPontiac City Code §§ 118-361(g), 118-376, 118-451(a)
Construction activity that negatively impacts or may negatively impact stormwater runoff or water quality includes, without limitation, construction activity that: increases stormwater runoff rates, velocities, or volumes; increases water pollution or transports pollutants; causes erosion and/or sedimentation of waterways; causes a lack of ground infiltration; ... 118-376 General requirements. ...
Flood Zones
In the City of Pontiac, any construction or development inside a FEMA-mapped area of special flood hazard needs a building permit before work starts, under City Code § 66-43. The administrator of the building and safety engineering division reviews plans showing elevations, fill and drainage, and § 66-56 requires new construction and substantial improvements to be anchored against flotation and built with flood-resistant materials.
Pontiac Regulates Building in Flood Hazard Areas
Some RestrictionsPontiac City Code §§ 66-28, 66-43, 66-56
This article shall apply to all areas of special flood hazards within the jurisdiction of the city. ... A building permit, as required by the building code of the city, shall be obtained before construction or development begins within any area of special flood hazard established in section 66-29. Application for a building permit shall be made on forms furnished by the administrator, and may i...
Flood Elevation Requirements
In the City of Pontiac, City Code § 66-57 sets the elevation standard inside mapped flood hazard areas: new or substantially improved residential structures must have their lowest floor, including any basement, built to or above base flood elevation. Nonresidential buildings get the same elevation option or may floodproof instead, watertight below the base flood level and certified by a licensed engineer or architect.
Pontiac Requires Elevation Above Base Flood Level
Some RestrictionsPontiac City Code § 66-57
(1) Residential construction. New construction and substantial improvement of any residential structure shall have the lowest floor, including basement, elevated to or above base flood elevation. (2) Nonresidential construction. New construction and substantial improvement of any commercial, industrial or other nonresidential structure shall either have the lowest floor, including basemen...
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