Island County annual BEACH report

We monitored three beaches in Island County during the 2021 monitoring season:

  • Dave Mackie Memorial County Park
  • Freeland County Park, Holmes Harbor
  • Windjammer Lagoon

Freeland County Park in Holmes Harbor has a swim advisory from June through mid-September, due to high bacteria levels.

Windjammer Park swimming lagoon

Keeping beaches safe

The Beach Environmental Assessment, Communication & Health (BEACH) Program ensures that marine water is safe to swim and play in and informs the public if water doesn't meet swimming standards. Sampling takes place from Memorial Day to Labor Day. During this time, you can check out current water quality conditions on the swimming map.  

Island County Public Health sampled three Island County beaches during the 2021 season.

See details on each beach below.

Data summary: Bacteria results compared to standards

The chart below summarizes the bacteria levels at Island County beaches in relation to the EPA swimming standard or saltwater swimming criteria. Beaches are considered unsafe for swimming when the geometric mean of enterococcus/100 mL of water is greater than or equal to 30 and the statistical threshold value of enterococcus/100 mL is greater than or equal to 110. We issue a public swimming advisory when enterococcus levels exceed 104 per 100 mL of water. 

Table: Calculated geometric mean and statistical threshold value at Island County beaches (in enterococcus per 100 mL) for 2021.




Dave Mackie Memorial County Park



Freeland County Park/ Homes Harbor



Windjammer Lagoon