Erosion Control

What This Service Involves

We install and maintain erosion and sediment control measures, including silt fence, wattles, matting, seeding, and inlet protection, to keep disturbed soil in place and sediment out of the storm system. Western Washington's heavy, persistent rain makes bare soil a serious water-quality risk, and state and local rules require documented ESC on public projects and problem slopes. Our crews design controls suited to each site's slope and exposure and maintain them through the wet season until vegetation establishes. Inspections and maintenance are logged to satisfy permit and TESC-plan requirements.

Benefits

Keeps disturbed soil in place and sediment out of storm systems; meets state and local ESC and TESC-plan requirements; matches control measures to site slope and exposure; maintains measures through the wet season until stabilization; provides inspection logs for permit compliance

Our Process

1) Assess the site's soils, slopes, and disturbance to design ESC measures; 2) Install perimeter, slope, and inlet protection controls; 3) Establish vegetative or permanent stabilization; 4) Inspect and maintain measures and document each visit

What Affects the Cost

Site area, slope steepness, and soil erodibility; type and quantity of control measures; duration of maintenance through the wet season; stabilization method from seeding to matting; inspection frequency and reporting requirements

Best Time of Year

Erosion control is critical from October through spring when Puget Sound rains are heaviest, and temporary stabilization is required before the wet season on any exposed soil.