Island Co. Septage Treatment Facility
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Island Co. Septage Treatment Facility
Island Co. Septage Treatment Facility

Island County Septage Treatment Facility Upgrade

Island County's Septage Treatment Facility treats all septage generated on Whidbey Island, along with waste activated sludge from several municipal treatment plants on the Island. The project team prepared an engineering report, determined the 20-year design capacity, and evaluated and recommended improvements to make best use of the existing infrastructure and to extend the life of the facility. Work required installing a new mechanical headworks screen, two new aerobic digesters, evaluating methods to reduce energy use at the facility, and construction of a 5.5-MG storage lagoon for Class B biosolids.