Washington County (Or.)2014-04-182014-04-182009-10-27https://hdl.handle.net/1794/1705326 pp. Adopted 2009-10-27. Department of Land Conservation and Development Notice of Adopted Amendment(limit of 500 characters): Ordinance No. 724 amends the Washington County - City of Tualatin Urban Planning Area Agreement to incorporate the Southwest Tualatin Concept Plan Area into the city's area of interest.en-USPublic DomainLand UseAdopted Plan