Baseline monitoring of rockfish occurs biannually, at fixed
sites located in areas of known contamination. Samples
are collected during the Groundfish Survey at the Elliott
Bay, Commencement Bay and Sinclair Inlet stations.
Focus studies have been carried out in Elliott
Bay, Commencement Bay and Sinclair Inlet to further characterize
the areal extent of contamination and associated biological effects.
Stations were distributed so as to expand spatial coverage around
the baseline stations. Click the preceding station names for detailed
maps of the Focus Study sites.
Historic stations were sampled at varying frequencies from 1989-1997
but have not been sampled since. Five stations (San Juan Islands,
Double Bluff, Blakely Rocks, Hood Canal, and Day Island) were selected
to provide a wide geographic coverage in Puget Sound.
Two stations sampled in 1997, Foulweather Bluff (non-urban) and
Mukilteo (near-urban) were selected as reference sites for Focus,
Baseline, and Historic stations. (See the English
sole sampling location page for definitions of near-urban and