Managing our stormwater aims to improve the quality and reduce the volume of stormwater. Unlike sanitary sewer water, stormwater does not receive any treatment before it enters our waterways, thus delivering pollutants with it that it picks up along the way. This adversely affects wildlife, human health and safety. In addition, water that falls on hard surfaces and doesn't infiltrate into the ground runs off to lower areas, with excess runoff potentially causing local flooding and stream bank erosion.
Every day activities we do around our businesses, homes, and yards can impact the quality of our stormwater. Some common examples include over fertilizing our yards or fertilizing before a heavy rain, not picking up pet waste, and excessive use of pesticides. Oil drips from vehicles, litter, yard debris, and sediment are other examples of common stormwater pollutants.
When stormwater flows over surfaces, it picks up and carries pollutants on those surfaces becoming polluted. Common stormwater pollutants include oil, sediment, pesticides, fertilizers, litter, yard waste, and pet waste.
Stormwater runoff is water from rain or melting snow that “runs off” across the land instead of seeping into the ground. This runoff usually flows into the nearest stream, creek, river, lake or ocean. The runoff is not treated in any way