§ 4.20. Stormwater Management

The goal of stormwater management is to prevent runoff from delivering pollutants or sediment to lakes, rivers, streams, or wetlands. Commonly applied stormwater management tools include: ditches, culverts, grassed waterways, rock chutes, retention basins or settling ponds, curb and gutter, storm sewer, and construction site erosion control.

The City of Greenwood has never developed a stormwater management plan. The city is not required to hold a stormwater discharge permit from the WDNR.

However, state law currently requires certain construction sites, municipalities, and industries to obtain a Stormwater Discharge Permit from the WDNR. Construction sites with more than one acre of bare soil and non-metallic mine sites of any size must obtain a permit. Incorporated areas with a population of less than 50,000 are not required to obtain a permit. Industrial sites are categorized based on their potential for contamination of stormwater runoff. The highest potential sources of pollution are regulated more strictly than the lowest.

Stormwater is primarily managed in the city through a system of swales, ditches, and curb and gutter. Most curb and gutter areas are located within the older established areas of the city. There is currently no curb and gutter policy within the city.