Ensuring Lake Whatcom Water Quality

​Lake Whatcom is not only a nearby environmental and recreational treasure but it is also the source of drinking water for 100,000 Whatcom County residents. While the Lake is still relatively clean, and drinking water quality is high, human activities in and around the Lake have fed worrisome trends. Currently, the Lake is listed by the State Department of Ecology as an impaired water body for excessive phosphorus, and some of the streams entering the lake have been contaminated with fecal coliform bacteria. Excessive phosphorus supports growth of algae, depletes oxygen, and can have an impact on water quality.  Data on Lake health can be viewed in the Lake Whatcom Annual Monitoring Reports produced by the Institute for Watershed Studies at Western Washington University.

Lake Whatcom Management Program

Extensive residential development in parts of the watershed, coupled with the Lake’s popularity for recreation, create unique challenges. The Lake Whatcom Management Program, involving the City of Bellingham, Whatcom County, and the Lake Whatcom Water and Sewer District, supports a wide range of programs to improve the Lake and manage its watershed, including stormwater treatment, land use regulation, property acquisition, and aquatic invasive species prevention. City Council members approve five-year work programs for the lake, and Council representatives participate in a multijurisdictional Lake Whatcom Policy Group to review or identify watershed-wide solutions.

Annual Meetings 

The City and County Councils and the Lake Whatcom Water and Sewer District Board meet annually to hear about Lake Whatcom program activities.

Lake Whatcom Policy Group

Representatives from the Bellingham City Council, Whatcom County Council, the Lake Whatcom Water and Sewer District Board, and the  Sudden Valley Community Association Board meet periodically to discuss policy issues affecting the lake. Summaries and recordings of the meetings are available online.