Watershed Friendly Practices for Businesses
Rainleader Disconnect Program
Residential and commercial buildings sometimes have rooftop drains, called rainleaders, which lead underground directly to the sanitary sewer system (rather than through gutters to lawns). Rainleaders typically drain down the side of a building, or internally through a roof drain stack, eventually to the storm drain system.
These drains must be disconnected because they are one of the leading causes of Combined Sewer Overflows. For more information on the CSO Program Phase II, as well as the Rainleader Disconnect Program, see the Minneapolis CSO Solution web page.
Best Management Practices
The Urban Small Sites Best Management Practice (BMP) Manual includes detailed information for managing stormwater pollution for small urban sites in a cold-climate setting.
Other Businesses Useful Links
State Stormwater Permits
Find the latest information about Minnesota's Stormwater Program. Under the state rules, owners and operators of construction activity that disturbs one acre or more of land (including smaller sites that are part of a larger development) must obtain a combined NPDES/SDS permit from the Minnesota Pollution Control Agency (MPCA).
State stormwater related permits are also needed if you operate an industrial facility, both public and private. If you have questions about various state stormwater permits, call the MPCA Customer Assistance Center at 800-646-6247 or (651) 297-2274, or see the MPCA Stormwater Program website.
Watersheds Management Organizations in Minneapolis
For information regarding required permits in Minneapolis for stormwater runoff, see Watershed Management Organizations. They include the following organizations:
Last updated Mar. 14, 2013