Stormwater, from either rainfall or melting snow, flows directly into our rivers, lakes, streams, and the ocean or into a stormwater system through a storm drain.

Storm drains are frequently located in roadways and parking lots. The structure that prevents larger objects from flowing into the storm sewer system is called a catch basin. Once below ground, the stormwater flows through pipes, which lead to an outfall where the stormwater usually enters a stream, river or lake. In developed areas, impervious surfaces, such as pavement and roofs, prevent precipitation from naturally soaking into the ground. Instead, water runs rapidly into storm drains which means a greater volume of water carrying pollution (i.e., litter) into surface waters and less water soaking into the ground; which can cause flooding downstream, stream bank soil erosion, increase turbidity (muddiness created by stirred-up sediment) from erosion, habitat destruction, and contamination of rivers, lakes, streams, and the ocean.

Below you can find important information about stormwater management measures in place and how you, as a resident, can best facilitate proper stormwater flow.