Arlington Stormwater Wetland Park

City of Arlington constructed a 21-acre stormwater wetland park to treat stormwater from Old Town Arlington, clean backwash water from the City’s water treatment plant, and reclaim water from the City’s Water Reclamation Facility before infiltrating or discharging into the Stillaguamish River. The 9-acre wetlands consist of a series of wetland cells and weirs that improve water quality through infiltration, aeration, and vegetative uptake. Public recreation features on the site include shoreline access, wildlife viewing areas, water features, a 4,200-foot trail network, dog park, and picnic tables. The total cost to treat 280 acres of historic downtown Arlington lacking modern treatment is $1,325,000.