Surface Water Management Division
Lake Serene
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Lake Serene is located west of Highway 99 between Mukilteo and Lynnwood. The lake is 43 acres in size and quite shallow, with a maximum depth of 7.0 meters. The Lake Serene watershed is 223 acres. Most of the watershed is developed with residential uses. There is a public boat launch at the west end of the lake. Gas-powered boats are not permitted. |
Photo courtesy of Mark Fussell |
Water Quality Information
Summary
Lake Serene has high water clarity and low phosphorus levels for a shallow lake. The lake also has abundant aquatic plants, but these help to maintain the clear water. The lake may be at risk of future declines in water quality if the aquatic plants are removed or if nutrient runoff from the watershed increases.
Reports
A comprehensive Snohomish County State of the Lakes Report was produced in 2003 and includes a specific section on Lake Serene. Individual lake updates to this report are provided each year as new data are collected.
Data
Snohomish County Surface Water Management (SWM) together with volunteer lake-monitors have been collecting water quality data for Lake Serene since 1994. Current and historical lake water quality data are available online in SWM's interactive Water Quality Database.
Lake Serene Maps
- Bathymetric Map - this map shows contour lines of equal depth similar to a topographic map. Public access sites are also indicated on each map when applicable.
- Aerial Photo - 2007 aerial photos of the lake with relevant features such as public access sites and nearby roads.
- Watershed Map - this map shows the boundary of the Lake Serene watershed. A watershed is the land area that drains into the lake.
Aquatic Plants & Invasive Species
Lake Serene has a robust aquatic plant community that provide valuble habitat to fish and wildlife and help maintain water quality. Lake Serene does, however, suffer from infestations of invasive species including Eurasian Watermilfoil (EWM). EWM was found in Lake Serene in 2004 and quickly spread throughout the lake. EWM is an aggressive plant that can form dense canopies that can impede boating and swimming and out-compete native plants. Snohomish County has been working with the residents of Lake Serene to eradicate or at least control EWM from Lake Serene since 2005.
Lake Serene Resources
Contact
Gene Williams, Senior Planner, 425-388-3464 extension 4563
Marisa Burghdoff, Water Quality Analyst, 425-388-3464 extension 4639
Some documents are in pdf format. To read these files you'll need to have Adobe Acrobat Reader installed on your computer.