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Anne Backström

Our Source of Water

Silver Lake Water and Sewer District's water comes from a large freshwater lake known as Spada Reservoir, located about 30 miles east of Everett, Washington.

It serves as the primary source of high quality drinking water for the majority of Snohomish County.

 

Spada Reservoir is part of the Upper Sultan River Watershed, an area emcompassing more than 80 square miles that represents one of the wettest watersheds in the continental United States, with an average annual rainfall of approximately 165 inches.

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Water System
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Our Source of Water

Silver Lake Water & Sewer District was originally formed as a municipal corporation in 1934 to provide water service to an unincorporated area of Snohomish County.

Now almost 90 years later, we provide this service to over 18,773 homes and businesses, encompassing over 56,000 individuals.

 

As of 2022, our customer base consumed an average of 4.1 million gallons of water per day and 1.5 billion gallons per year.

Water System Components

Silver Lake Water and Sewer District's water comes from a large freshwater lake known as Spada Reservoir, located about 30 miles east of Everett, Washington.

It serves as the primary source of high quality drinking water for the majority of Snohomish County.

 

Spada Reservoir is part of the Upper Sultan River Watershed, an area emcompassing more than 80 square miles that represents one of the wettest watersheds in the continental United States, with an average annual rainfall of approximately 165 inches.

Water Quality

Our Water Quality

Water quality begins at the source: the Sultan Basin is carefully monitored, the watershed is patrolled, and human activities are limited to minimize the impact on the naturally pristine water.

From the lake, water travels to the City of Everett's water treatment plant, where it undergoes coagulation, flocculation, filtration and disinfection, before being distributed to the Clearview Water Supply Agency, of which Silver Lake Water and Sewer District is one of three members.

While Silver Lake Water and Sewer District still purchases some of our water from the City of Everett,  the majority is supplied by Clearview.

Annual Water Quality Reports

Nuestra calidad de agua  |  2020  |  2019

2018  |  2017  |  2016
Informes anuales de calidad del agua

PFAS Monitoring

Silver Lake Water & Sewer District’s drinking water remains safe and protected from the group of manmade chemicals labeled per- and polyfluoroalkyl (PFAS) substances.

Learn more and view test results here >

Enjoying Clean Water
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Our Water Quality

Water quality begins at the source: the Sultan Basin is carefully monitored, the watershed is patrolled, and human activities are limited to minimize the impact on the naturally pristine water.

From the lake, water travels to the City of Everett's water treatment plant, where it undergoes coagulation, flocculation, filtration and disinfection, before being distributed to the Clearview Water Supply Agency, of which Silver Lake Water and Sewer District is one of three members.

While Silver Lake Water and Sewer District still purchases some of our water from the City of Everett,  the majority is supplied by Clearview.

Our Water Quality

Water quality begins at the source: the Sultan Basin is carefully monitored, the watershed is patrolled, and human activities are limited to minimize the impact on the naturally pristine water.

From the lake, water travels to the City of Everett's water treatment plant, where it undergoes coagulation, flocculation, filtration and disinfection, before being distributed to the Clearview Water Supply Agency, of which Silver Lake Water and Sewer District is one of three members.

While Silver Lake Water and Sewer District still purchases some of our water from the City of Everett,  the majority is supplied by Clearview.

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