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Home  >  Departments  >  Public Works  >  PW Divisions  >  Surface Water  >  Work Areas  >  Water Quality  >  Lakes  >  Sunday Lake

Surface Water Management Division

Sunday Lake

Sunday Lake is located five miles east of Stanwood on a plateau north of the Stillaguamish River.  The lake is 38 acres in size and quite shallow, with a maximum depth of 6.1 meters.  The Sunday Lake watershed is mostly undeveloped and covers 790 acres.   There is a public fishing access and walk-in boat launch on the north side of the lake.  Gas-powered boats are not permitted. 

SUNDAY LAKE TOXIC ALGAE CAUTION - NOVEMBER 2011

 

Water Quality Information

Summary

Sunday Lake has low (and possibly declining) water clarity, high nutrient levels, and abundant algae and aquatic plants.  Although the lake provides valuable recreation and aesthetic enjoyment, nuisance levels of aquatic plants and excess algae impair the use of the lake at times.  The health of the lake depends on controlling nutrients from the watershed and careful management of the aquatic plants.

 

Reports

A comprehensive Snohomish County State of the Lakes Report was produced in 2003 and includes a specific section on Sunday Lake.  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 Sunday Lake since 1994.  Current and historical lake water quality data are available online in SWM's interactive Water Quality Database.

Sunday Lake 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 Sunday Lake watershed.  A watershed is the land area that drains into the lake.  

 

Sunday Lake 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.
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