Erosion and Sediment Control
Erosion is a natural process, but construction activities such as removing vegetation, disturbing soil, and redirecting drainage can increase the natural rates of erosion. Sediment is the single most common pollutant in rivers, streams, lakes, and reservoirs. Sediments can also damage stormwater facilities such as catch basins, drywells, and swales - increasing the risk of flooding and resulting in costly maintenance for taxpayers.
The purpose of Spokane County’s Erosion and Sediment Control ordinance (9.14.185) is to control soil erosion and sedimentation through the use of temporary and permanent erosion and sediment control practices.
The ordinance (9.14.185) lists five performance standards to keep in mind during land-disturbing activities:
- Minimize Tracking Onto Public, Private, and Future Public Roads
- Protection of public roads and stormwater facilities
- Proper washout of concrete trucks and equipment
- Protection of private properties
- Protection of water bodies and wetlands
For more information on how to become a Certified Erosion and Sediment Control Lead please visit the Washington State Department of Ecology webpage to view upcoming training opportunities near you.
Best Management Practices:
The Stormwater Management Manual for Eastern Washington contains an extensive list of best management practices (BMPs) that can be used to make sure construction projects meet the standards listed above.
Here are some of the most commonly used BMP’s, including instructions for inspections and maintenance:
WSC Construction Training Series
The Washington Stormwater Center, in collaboration with CWT, LLC. (CWT) is pleased to provide a series of videos for BMPs used in the construction industry for smaller projects and municipal maintenance activities. The Course provides instruction on the variety of BMPs available to the construction industry and how they can be used to control erosion.