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MI — Stormwater Compliance

Michigan Construction Stormwater Inspections

Michigan uses a unique dual-permitting approach through EGLE, requiring both a Part 91 Soil Erosion and Sedimentation Control permit and NPDES stormwater authorization. Sites disturbing 1-5 acres receive automatic coverage under Permit-by-Rule, while sites of 5+ acres require a separate NPDES application. Michigan's extensive Great Lakes shoreline and inland waterways demand rigorous construction stormwater management.

Permit Details

Permit Designation
Permit-by-Rule / NPDES Individual Permits (Part 91)
Issuing Authority
Michigan Department of Environment, Great Lakes, and Energy

Key Inspection Requirements

Part 91 Soil Erosion and Sedimentation Control (SESC) permit required for all earth disturbance
NPDES permit application and SWPPP required for sites disturbing 5 or more acres
Sites of 1-5 acres covered under Permit-by-Rule with Part 91 compliance
Inspections every 7 days and within 24 hours of a 0.5-inch or greater rainfall event
Certified Stormwater Operator required for sites with NPDES coverage

How StormGuard Pro Helps in Michigan

  • Auto-generates PDF inspection reports matched to the Permit-by-Rule / NPDES Individual Permits (Part 91) template
  • AI-powered photo analysis identifies 17+ BMP types during field inspections
  • Tracks 7-day precipitation and triggers post-storm inspection alerts automatically
  • Corrective action tracking with deadline reminders per MI permit requirements
  • Shareable report links for project owners, regulators, and the Michigan Department of Environment, Great Lakes, and Energy

Ready to Simplify MI Inspections?

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Start Your Michigan Stormwater Inspections Today

Join contractors and consultants across Michigan using StormGuard Pro to stay compliant with Permit-by-Rule / NPDES Individual Permits (Part 91) requirements.

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