Surface Water Management
When rain falls on land and impervious areas such as paved streets, parking lots, and building rooftops, it can wash away sediments, oil, grease, chemicals, nutrients, metals, litter, and pathogens. Left unmanaged, these pollutants enter our lakes and streams via the surface-water storm drain system, significantly contributing to the degradation of these important resources. Another source of water pollution is the phosphorus from leaves and lawn clippings. These nutrients turn lakes and rivers green with algae.
Surface Water Resources
2023 Municipal Storm Sewer Informational Board
A Municipal Separate Storm Sewer System (MS4) is a conveyance, or system of conveyances that is designed to collect stormwater and is owned and operated by a public entity. Stormwater from an MS4 is regulated under the National Pollutant Discharge Elimination System (DPDES) MS4 permit to reduce pollution from conveyance systems. The City of Excelsior is a MS4 and is required to minimize pollutants that enter their systems through a Stormwater Pollution Prevention Plan (SWPPP). To comply with minimum control measures (MCM), information on the work and implementation of Excelsior's MS4 Program is available for public viewing and comment annually.
2023 Municipal Storm Sewer Informational Board
2023 Surface Water Pollution Protection Program Comment Sheet