Clean Water Services (PDF, 201KB) is a public utility committed to protecting water resources in the Tualatin River Watershed. Nearly 500,000 customers enjoy clean water and healthy rivers and streams through innovative wastewater and stormwater services, flood management projects, water quality and stream enhancement projects, fish habitat protection, and more. Our services are crucial to the region's public health, environmental protection, and economic vitality. Clean Water Services operates four wastewater treatment plants and 39 pump stations. We also work with our 12 member cities to build and maintain the public sanitary sewer and surface water management system. In 1970, Clean Water Services was formed as the Unified Sewerage Agency of Washington County by a 2-to-1 vote of the people to address serious health and pollution problems in the Tualatin River and its tributaries. We met that challenge by unifying 26 inefficient wastewater treatment plants into one coordinated system.