Managing Storm Water Runoff


The purpose of the St. Louis County Phase II Stormwater Management Plan is to improve area water quality by preventing harmful pollutants from being carried by stormwater runoff into local water bodies. The Metropolitan St. Louis Sewer District (MSD) partners with 59 municipalities (co-permittees) to comply with stormwater permit requirements for the St. Louis Metropolitan Small Municipal Separate Storm Sewer System (MS4).

To read more about stormwater management, please visit  Metropolitan St. Louis Sewer District website.

Managing Storm Water Runoff

As more and more people own cars, more parking lots become necessary. Unfortunately, parking lots can adversely affect the environment as well as detract from community character. Paved parking lots are typically designed to collect and concentrate large areas of storm water runoff, which can impact a receiving streams hydrography as well as water quality. Paved parking lots can generate heat, raising the surrounding areas air temperature and the temperature of the first flush of storm water, creating significant ecological impacts. Therefore, careful attention to their design will go a long way toward protecting your community's water resources. Permeable pavement is a good solution to storm water pollution from parking lots.

Best Management Practices (BMPs), like permeable pavement, raingardens, detention ponds, etc are methods to prevent or reduce the pollutants in storm water runoff. Below are BMPs that have been achieved in University City.

Stormwater Management