In 1951, the residents of the Shoreline area established Ronald Wastewater as a special purpose district focused on the operations and maintenance of a sanitary sewage collection system. Currently Ronald Wastewater District receives flows from the corporate limits of the City of Shoreline (excluding The Highlands) and parts of unincorporated Snohomish County, as well as a portion of the Town of Woodway, the City of Mountlake Terrace, and the Highlands Sewer District.
The District has a conservative management culture which results in a healthy financial condition. It is a special purpose district whose revenue is generated from the ratepayer. The District has been granted a Moody's Bond rating of A-1 and a Dun & Bradstreet rating of 4A1.
Facilities: As of January 1, 2014, the District maintains and operates a wastewater collector and interceptor system consisting of 17 lift stations, 22 grinder pumps, and over 190 miles of sewer mains varying in size from 8 to 24 inches in diameter. The wastewater collected from within the District is treated at two separate treatment facilities, King County's West Point Treatment Plant and the City of Edmonds Treatment Plant.