What is Stormwater?

Stormwater is rain water and melted snow that runs off lawns, streets, and other sites. Ideally, stormwater is absorbed into the ground, filtered, and ultimately replenishes aquifers. However, because of development, impervious surfaces such as pavement and roofs prevent stormwater from naturally soaking into the ground. Instead, the stormwater runs rapidly into storm drains and drainage ditches causing down-stream flooding, stream bank erosion, reduced water quality, and damage to property and infrastructure.