Island County annual BEACH report

We monitored three beaches in Island County from May 20 through Aug. 30, 2019:

  • 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-Sept. due to 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.

From Memorial Day through Labor Day in 2019, we sampled 62 public high-use beaches statewide, either weekly or biweekly, for enterococcus, a type of fecal bacteria. High enterococcus levels are linked to swimmer illness.

Island County saltwater swimming beaches

We monitored three beaches in Island County weekly from May 20 – Aug 30, 2019.

Find details about each of the Island County beaches 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 2019

Beach Geometric Mean Statistical Threshold Value
Dave Mackie Memorial County Park 17 45
Freeland County Park, Holmes Harbor 22 107
Windjammer Lagoon 25 71