Illahee State Park

Illahee State Park is an 82-acre (33 ha) Washington state park located in the hamlet of Illahee, just north of East Bremerton, on Port Orchard Bay, part of Puget Sound. The word "Illahee" means earth or country in the Native language Chinuk Wawa. The park was established when Kitsap County donated 13 acres to the state in 1934. The park's old-growth stand is home to one of the nation's oldest Pacific yews, which has been standing for approximately 400 years. Park activities include picnicking, camping, hiking, boating, and shellfish harvesting.[2]

Illahee State Park
Map showing the location of Illahee State Park
Map showing the location of Illahee State Park
Location in the state of Washington
Map showing the location of Illahee State Park
Map showing the location of Illahee State Park
Illahee State Park (the United States)
LocationKitsap, Washington, United States
Coordinates47°35′49″N 122°35′55″W[1]
Area82 acres (33 ha)
Elevation269 ft (82 m)[1]
Established1934[2]
OperatorWashington State Parks and Recreation Commission
WebsiteIllahee State Park

Shellfish harvesting status

The official shellfish harvesting status of Illahee State Park is maintained by the Washington State Department of Health. In addition, environmental contaminants of the surface-water and Mytilus tissues at Illahee State Park are monitored routinely by local ecology programs.[3][4] While historical monitoring has reported low concentrations of heavy metals over the past decade (2010-2020), the presence of carcinogenic polycyclic aromatic hydrocarbons (cPAHs) in Mytilus tissues should be considered by recreational and subsistence consumers.[3][4] PAH concentrations in Puget Sound have been highlighted by the National Oceanic and Atmospheric Administration as being the highest in the nation and cPAH regulatory thresholds for Washington State consumers have been calculated by the Washington State Department of Ecology.[5][6] The following table provides Washington State cPAH thresholds (current as of 2020) for general fish consumption and available historical tissue burdens at Illahee State Park.

Concentrations of cPAHs in Mytilus collected from Illahee State Park (2010-2020)
POPILSP* cPAHs (ng g−1 ww)
MSL-ID Collection Year Benzo(a)anthracene Chrysene Benzo(b)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Indeno(1,2,3-cd)pyrene Dibenz(a,h)anthracene
TECC† 0.63 63 0.63 6.3 0.063 0.63 0.063
3106-198 2010 17.8 40.3 22.6 7.76 7.69 3.81 1.47
3106-797 2012 4.21 7.76 5.00 2.41 1.54 ND ND
3431-1 2014 3.00 6.50 4.47 1.62 ND ND ND
3538-7 2016 10.6 14.5 8.36 4.85 3.62 ND ND
3538-73 to 75 2018 5.56 8.93 7.35 3.43 3.12 ND ND
3538-118 2020 4.78 9.39 3.40 3.68 1.60 0.833 0.268
*tissue burdens represent composites of three substations, covering the Illahee State Park beach area and dock pilings (pilings contain creosote)
†TECCs (tissue exposure concentrations with carcinogenic effects) based on 10−6 risk level, 80 kg body weight, and 175 g d−1 tissue ingestion

References
  1. "Illahee State Park". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
  2. "Illahee State Park". Washington State Parks and Recreation Commission. Retrieved August 14, 2018.
  3. Strivens, J.E., Hayman, N., Colvin, M., Rosen, G., Frew. J., Richardson. T. 2020. ENVVEST Ambient Monitoring Program: In-Progress Summary 2009‒2019. PNNL-30285, prepared for the Puget Sound Naval Shipyard and Intermediate Maintenance Facility under Project ENVVEST by the PNNL Marine Sciences.
  4. Strivens, JE, RK Johnston, TJ Richardson, & JA Frew. 2021. ENVVEST Mussel Watch Program In-Progress Summary‒Collection Year 2020 Update. PNNL-31990, prepared for the Puget Sound Naval Shipyard and Intermediate Maintenance Facility under Project ENVVEST by the PNNL Marine Sciences Laboratory, Sequim, Washington.
  5. Kimbrough KL, Lauenstein GG, Christensen JD, Apeti DA. 2008. An assessment of two decades of contaminant monitoring in the Nation’s Coastal Zone. Silver Spring (MD): NOAA/NOS. p. 105.
  6. [Ecology] Washington State Department of Ecology. 2020. Washington’s Water Quality Assessment Listing Methodology to Meet Clean Water Act Requirements: Washington State Department of Ecology. Report No: 18-10-035.
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