Stormwater

Welcome to www.a2gov.org/storm: This site is designed to be a resource on stormwater management and surface water quality issues in the City of Ann Arbor.

	Prominent Projects Click here to view a diagram of the below wet weather projects (PDF) * FDD Program (Partially Suspended) * Sanitary Sewer Wet Weather Evaluation * Stormwater Model Calibration and Analysis * Upper Malletts Stormwater Conveyance Study * Other Stormwater Projects
	Stormwater Management Learn the basics about stormwater: what it is, why it's a problem, how the City currently manages stormwater and what you can do (including helpful resources on stormwater management practices)!
	Stormwater Rates and Credits Learn about Ann Arbor's tiered stormwater rate structure, which is based on a property's amount of impervious surface. Find out how your rate was calculated here. Then learn about credits that could help you reduce your rate: Residential credits Commercial credits
	Rain and Stream Gauges Look here for tools to access rain and stream gauge data.
	Stormwater Permit Find out how the City of Ann Arbor works with other Middle Huron River Watershed partners to meet state and federal stormwater permit regulations.
	NEW Stormwater Management Requirements for Residential Construction A stormwater management plan is required for residential construction projects with 200+ sq. ft. of impervious surfaces. Learn about the code changes and download an impervious area worksheet to determine the code affects your project.
	Opportunities for community involvement and participation in watershed stewardship activities