City staff is responsible for the maintenance and operation of the Citys water distribution system for a constant and safe delivery of potable water to over 9,700 accounts. Edmonds drinking water is purchased from the Alderwood Water District. Alderwood Water District purchases their water from the City of Everett. The water comes from Spada Reservoir, located at the headwaters of the Sultan River about 30 miles east of Everett. From the Spada Reservoir, the water travels through a pipeline to the City of Everett Treatment facility at the Chaplain Reservoir.
Public Works and Capital Improvement Projects - Current capital projects, city projects and information on the City's six year capital improvement program can be found by clicking on the document link to the right.
The comprehensive plan provides an analysis of the City's water system. It provides planning information and will guide the City in operating, maintaining and improving it's water system and ensure existing and future customers are provided with a safe and reliable supply of drinking water and fire protection.
What is a Cross-Connection? A cross connection is an actual or potential physical connection between a "potable water" line and any pipe, vessel, or machine containing non-potable fluid, solid or gas allowing possible entry to the water system by backflow. This would include, but is not limited to, sewers, drains, conduits, pools, storage reservoirs, plumbing fixtures, or any other device. The non-potable or unapproved water supply system may contain contaminated liquids, solids, or gases, of unknown or unsafe quality. Bypass arrangements such as jumper connections, removable sections, swivel or changeover devices are considered to be a cross connection.
What is Backflow? Backflow is a flow in reverse from the normal direction of flow in a piping system. It occurs due to a differential pressure existing between two different points within a continuous fluid system: a fluid of higher pressures flowing to a fluid of lower pressure. Backflow may occur due to either "back-siphonage" or "back-pressure".
Edmonds purchases your drinking water from the Alderwood Water District. Alderwood Water District purchases their water from the City of Everett. The water comes from Spada Reservoir, located at teh headwaters of the Sultan River about 30 miles east of Everett. The Spada Reservoir, created in 1964 in partnership with the Snohomish County PUD, holds about 50 billion gallons of water.
From Spada Reservoir, the water travels through a pipeline to the City of Everett Treatment facility at teh Chaplain Reservoir. Chaplain Reservoir is about 8 miles downstream from Spada Reservoir and holds about 4.5 billion gallons of water.
Spada Reservoir is in the Sultan Basin Watershed. A watershed is a geographic area where all precipitation drains into a single body of water. In the Sultan Basin Watershed, rain and snow melt from the Cascade Mountains flow into Spada Reservoir. The Sultan Basin Watershed covers an area of about 84 square miles and is one of the wettest watersheds on the west side of the Cascade Mountains. The average rainfall is about 165 inches, or 5 times our local rainfall. To protect the natrually pristine water in Spada Reservoir, water quality in the Sultan Basin is carefully monitored.
Most of the incorporated City limits are servced by the Edmonds public water system. However, areas that are both south of 220th Street (or Elm Street) and west of Highway 99 and 76th Avenue West are servced by the Olympic View Water District.
The Spada Reservoir, located in the Sultan Basin Watershed and created in 1964 in partnership with Snohomish County PUD, holds about 50 billion gallons of water. The watershed covers about 84 square miles and is one of the wettest watersheds on the west side of the Cascade Mountains.
The Chaplain Reservoir, located about 8 miles downstream from Spada Reservoir, holds about 4.5 billion gallons of water.
City staff operates and maintains over 138 miles of distribution water mains, 19 pressure reducing stations, three 1.5 million gallon reservoirs, one 3.0 million gallon reservoir, and one pumping station.