In 2016, the City of West Linn engaged in a planning process involving citizens and agency stakeholders to update the Sanitary Sewer Master Plan (SSMP). While this is an update to the 1998 SSMP, the 2019 SSMP completely replaces the old plan. The 2019 SSMP maintaines the original plan's objectives and basis of planning. The update includes review of facilities constructed since 1998, and consideration of aging facilities, regulatory changes, and population trends, utilizing the current best practices of the industry.
