Duwamish Marine Terminal Industrial Stormwater General Permit Support

After providing expert support during settlement of a Clean Water Act citizen suit, Aspect designed an above-ground media-filtration stormwater treatment system for a 5-acre marine terminal and barge loading facility on the Duwamish River.  Our design included an innovative collection and conveyance system to avoid soil disturbance along the shoreline and reduce local permitting requirements. The client has not triggered a Level 2 or 3 Corrective Action since installation of the system in 2011.