Michigan Stormwater-General regulations & environmental compliance analysis

Michigan Stormwater-General: What you need to know

Governing Law and Regulations

National Pollutant Discharge Elimination System (NPDES) stormwater discharge permits: Michigan Administrative Code (MAC) r. 323.2161

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Michigan Soil Erosion and Sedimentation Control Act, Michigan Compiled Laws (MCL) 324.9101 to 324.9123a

Regulatory Agencies

Michigan Department of Environmental Quality (DEQ) Water Resource Division Stormwater Program

Michigan Department of Agriculture (MDA)

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Michigan has received federal authorization from the U.S. Environmental Protection Agency (EPA) to issue National Pollutant Discharge Elimination System (NPDES) general permits, including permits for stormwater discharges. The Michigan Department of Environmental Quality (DEQ) has adopted the federal requirements for stormwater and has additional requirements. See the national section STORMWATER—GENERAL for more information on the federal stormwater regulations.

In addition, under the Michigan Soil Erosion and Sedimentation Control Act, the DEQ, with the assistance of the Michigan Department of Agriculture (MDA), has developed rules for a unified soil erosion and sedimentation control program. Michigan has also established requirements for stormwater industrial operators and stormwater construction operators.

For more information on the permitting requirements for specific types of stormwater discharges, see the state sections STORMWATER—INDUSTRIAL FACILITIES, STORMWATER—CONSTRUCTION ACTIVITIES, and STORMWATER—MUNICIPALITIES.

Administration and enforcement. DEQ's nine district offices administer and enforce ...


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