Catch Basin Cleaning

What This Service Involves

We vactor out accumulated sediment, debris, and pollutants from catch basin sumps to restore inlet capacity and prevent bypass into the storm system. Regional NPDES permits require documented catch basin maintenance when sump depths exceed set thresholds, and our crews measure, clean, and record each structure to that standard. In the Puget Sound area, fine sediment and organic matter fill sumps quickly, so timely cleanout protects downstream water quality and treatment facilities. Waste is disposed of at approved decant and disposal sites with manifests provided.

Benefits

Restores full sump and inlet capacity to prevent surface flooding; meets NPDES permit thresholds with measured documentation; captures pollutants before they reach receiving waters; extends the life of downstream pipes and treatment structures; provides disposal manifests for regulatory recordkeeping

Our Process

1) Inventory structures and measure sump sediment against permit thresholds; 2) Set traffic control and position vactor equipment; 3) Remove sediment, debris, and liquids from the sump and inlet; 4) Decant and dispose of waste with manifests and log each structure

What Affects the Cost

Number of catch basins and structure depths; sediment volume and accumulation rate; disposal and decant facility fees; traffic control at in-street structures; inspection and reporting requirements

Best Time of Year

Catch basin cleaning is prioritized in late summer and early fall to ensure full storm capacity before the heavy Western Washington rainy season begins.