Stormwater Center


Part of our commitment to serving the residents of Rochester includes providing information that helps them to make more informed decisions about water quality issues and the public’s responsibilities in protecting surface water quality for current and future generations.  This section of the City’s website is a resource we hope you’ll find both useful and interesting.  We genuinely hope this site is helpful to you in learning more about our Federal, State, and City-driven responsibilities.

Chapter 218 Stormwater Management and Erosion Control Amended June 2021

City of Rochester Stormwater Management Program (SWMP)

The SWMP describes and details the activities and measures that are planned to be implemented to meet the minimum requirements of the General Permit for Stormwater Discharges from Small Municipal Separate Storm Sewer Systems (MS4) [MS4 Permit], which became effective on July 1, 2018. The main elements of the SWMP include: (1) a public education program to provide educational material describing ways the City’s residents can minimize stormwater contamination, (2) an opportunity for the public to participate and provide comments on the stormwater program, (3) a program to identify and eliminate illicit discharges within the MS4, (4) a program to control construction site stormwater discharges to the MS4, (5) a program to control stormwater runoff from development projects using stormwater control measures, and (6) a good housekeeping program to minimize stormwater pollution sources on municipal properties and from municipal operations.  The public may review the SWMP (click link below) and provide comments via email to

City of Rochester Stormwater Management Plan 6/30/2021


When it rains or snow melts, the resulting "stormwater" may be absorbed into the ground or it may "runoff" the land surface into a nearby lake, stream, or estuary.  Stormwater runoff from natural (vegetated) land is typically low since most rain or snow melt infiltrates into the ground or is lost to evaporation.  Stormwater runoff increases as the percentage of impervious surface cover (e.g., streets, parking lots, rooftops) increases, since the land's ability to absorb water is limited.  In addition to washing pollutants into our surface waters, improperly managed stormwater runoff can result in soil erosion and flooding.

To learn more, click here for an edcuational video on Stormwater Runoff