What is the purpose of MS4?

The purpose of MS4, which stands for Municipal Separate Storm Sewer Systems, is to manage stormwater runoff effectively in urban areas. These systems are designed to collect and convey stormwater from streets, buildings, and other impervious surfaces directly to receiving waters, rather than through combined systems that also handle sewage.

The separation of stormwater from wastewater is crucial for preventing pollution and managing water quality. MS4 systems help local governments reduce the risk of flooding, minimize erosion, and enhance water quality by allowing for better control and treatment of stormwater before it enters natural water bodies. Through proper implementation and maintenance of MS4 systems, municipalities can comply with environmental regulations and contribute to sustainable urban drainage strategies.

Understanding the specific function of MS4 is essential for those involved in stormwater management and erosion control, as it forms a foundational aspect of urban water management practices.