Marshall Township's Municipal Separate Storm Sewer System (MS4) Program was initiated in 2004 and has included mapping and inspecting stormwater infrastructure throughout the Township in an effort to detect illicit discharges. The Township has also adopted innovative stormwater management regulations to reduce and minimize the volume of stormwater generated from new land development. Marshall Township residents can also contribute to the improvement of water quality by reducing the amount of pollutants and stormwater generated from their property. Potential practices that a homeowner can employ include creating rain gardens, utilizing cisterns and rain barrels, and reducing lawn fertilization.