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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.

 

 

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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".

  2011 Annual Water Quality Report Brochure (2.24 MB )

 

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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.

 

• Take a Drinking Water Virtual Tour

 

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.

 

 

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  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 squared 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, 18 pressure reducing stations, three 1.5 million gallon reservoirs, one 3.0 million gallon reservoir and one pumping station.

 

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Installation of an irrigation system requires compliance with Washington State Law (WAC 245-290) and Edmonds City Code Chapter 7.20.  These Laws require that all irrigation systems have approved backflow protection.  An City permit is also required when installing an irrigation system.

Without proper backflow protection, your irrigation system could endanger the health of your family, neighbors, and others in the community who are using the public water system.

The following state approved backflow assemblies are required to be installed per City of Edmonds standards, and must be tested by a Washington State Certified Backflow Assembly Tester upon installation, repairs, relocation, and annual thereafter:

  Atmospheric Vacuum Breaker (AVB)
  Pressure Vacuum Breaker Assemblies (PVBA)
  Double Check Valve Assemblies (DCVA)
  Reduced Pressure Backflow Assemblies (RPBA)

Improper installations of a State Approved Backflow Prevention Assembly or failure to have the backflow prevention assembly tested are grounds for termination of water service.  Please note, an AVB does not required annual testing.


Sprinkler Irrigation System Permit - Please submit permit applications and/or annual assembly certifications to:

City of Edmonds
Public Works Department - Water Quality
7110 - 210th St SW, Edmonds WA  98026

• Irrigation Sprinkler Permit Application
• City Approved Certified Backflow Assembly Testers List

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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.

• • • Water Comprehensive Plan Document
    • Appendices A-F
    • Appendices G-M

 

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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.

Watermain Replacement - The City is involved in replacing over 17,000 feet of water main through 2012. Check out the latest schedule.

For daily construction updates follows us on Twitter@edmondspw

• 2010 and 2011 replacement projects are currently under construction.

• 2012 waterline replacement is currently in the design phase.

 

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Mike DeLilla, P.E.  

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The City of Edmonds waterline improvement projects propose to replace existing water main with new 4-inch, 6-inch, 8-inch and 12-inch diameter ductile iron water main and appurtenances including, but not limited to, fire hydrants, isolation valves, tie-in connections and water services.

  Schedules provided herein are for reference only and are subject to change.

 

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City of Edmonds 2010 Waterline Replacement Project PROJECT SUBSTANTIALLY COMPLETE FINAL CLEANUP AND PUNCHLIST WORK IN PROGRESS
Timeline	Location	Type of Work			Status
May to Mid July 2011	Westgate Neighborhood
	95th Ave from 220th to 217th St SW	Waterline install, Asphalt road patch			Complete
	218th Place	Waterline install, Asphalt road patch			Complete
	93rd Place W	Waterline install, Asphalt road patch			Complete
	217th Place	Waterline install, Asphalt road patch			Complete
	217th St SW from 92nd Ave to 95th Ave	Waterline install, Asphalt road patch			Complete
	215th St SW	Waterline install, Asphalt road patch			Complete
July to August 2011	Driftwood Lane	Waterline Install, Asphalt Road Patch, Asphalt Road Overlay			Complete
	Olympic Ave & Main Street	Waterline install, Asphalt road patch			Complete
	76th Ave W, south of OVD	Waterline install, Asphalt road patch			Complete
Sept. to Oct 2011	10th Ave N from Brookmere to Carol Wy	Waterline install, Asphalt road patch			Complete
	Olympic Ave & Main Street	Waterline install, Asphalt road patch			Complete
	12th & Viewland	Waterline install, Asphalt road patch			Complete
Oct 2011 to Dec 2011	Cascade Lane	Waterline install, Asphalt road patch			Complete
	Edmonds Street	Waterline install, Asphalt road patch			Complete
	81st St & 192nd to Sierra Park	Waterline install, Asphalt road patch, Park restoration			Complete
	206th St SW & Skyline Drive	Waterline install, Asphalt road patch			Complete
	Skyline Dr from 206th St SW to Main St	Waterline install, Asphalt road patch			Complete
	192nd St from 80th to 81st	Waterline install, Asphalt road patch			Complete

 

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City of Edmonds 2011 Waterline Replacement Project PROJECT IS SUBSTANTIALLY COMPLETE FINAL CLEANUP AND PUNCHLIST WORK IN PROGRESS
Timeline	Location	Type of Work	Status
Sept 2011 to Oct 2011	W Dayton Street	Waterline Install, Asphalt Road Patch, Asphalt Road Overlay	Complete
	4th Street, Erben & Howell	Waterline install	Complete.
	5th Avenue	Waterline install	Complete.
Nov 2011 to Dec 2011	4th Street, Erben & Howell	Waterline install	Complete
	5th Avenue	Waterline install	Complete
	City Park	Waterline install	Complete
January to March  2012	Homeland	Waterline install and Water Services	Complete
	Holly	Waterline Install	Complete
	Forsyth	Waterline install	Complete
	4th Street, Erben, & Howell	Water Services & Permanent Asphalt road patch	Complete
	5th Avenue	Water Services & Permanent Asphalt Asphalt road patch	Complete
	City Park	Water Services and Permananent Asphalt road patch	Complete
	Homeland	Water Services & Permanent Asphalt road patch	Complete
	Holly & Forsyth	Water Services and Permanent Asphalt road patch	Complete

Map of the 2011 project sites: (click to enlarge)

PDF of map [CLICK HERE]