This indicator tracks changes in the classification of harvestable shellfish beds in Puget Sound. The Washington State Department of Health classifies 115 shellfish growing areas in Puget Sound to assure that harvested shellfish are safe to consume. The data collected for the classification process represent the conditions that dictate shellfish harvest and their trends provide information on marine water quality in Puget Sound.
Area (acres) of harvestable shellfish beds where the Washington Department of Health classification has changed. Upgrades in classification mean that water quality has improved, allowing for fewer restrictions on shellfish harvest. Downgrades mean there are either more restrictions on when shellfish may be harvested or harvest is not allowed.
Washington State Department of Health, Office of Environmental Health and Safety