Sediment Pollutants

Sediment Overview

Sediment is the loose sand, clay, silt and other soil particles that suspend or settle within our streams, lakes, and creeks. Sediment often comes from stream bank erosion, construction sites, and areas of disturbed land that are exposed to stormwater.

While sedimentation is a natural process in the environment, too much sedimentation, especially over a short period of time, can pollute water bodies by:

Transporting contaminants and degrading natural habitats and impacting aquatic life
Impairing the use for recreational and commercial purposes
Promoting invasive plant species growth

3 Ways to Prevent Sediment Pollution

The Clean Water Education Partnership (CWEP) discusses ways you can help prevent sediment pollution.

Active and Post Construction

Erosion and sediment control practices are important on every construction site. Construction sites, large or small, can impact the environment when sediment is transported. Learn more about ways to prevent pollution on active and post construction sites.

Leaves and Yard Waste

When leaves and yard waste are not properly disposed, they flow through the storm drain to local waterways and can impact aquatic life and habitat. This is a major source of nutrient pollution. Learn more about how you can keep leaves and yard waste from entering storm drains.