Stormwater is runoff that is NEVER treated. When it rains, snows, sleets, or hails that precipitation comes into contact with many types of surfaces in the city: buildings, parking lots, streets, houses, yards, cars… and the list goes on! Ideally, rainwater would be absorbed into the ground however, in urbanized areas like parts of Robinson, there are surfaces that prevent absorption. When the rainwater cannot be absorbed it becomes runoff. Without a storm drainage system that runoff would cause a lot of flooding.
Robinson's Municipal Separate Storm Sewer System (MS4) is comprised of storm drains, ditches, lined and unlined channels, creeks, and streams. Stormwater in the City of Robinson drains into these conveyances and flows to the Brazos River.