As part of an effort to determine the impact of pollution on shellfish in Grays Harbor, officials from the Washington State Department of Health, the Quinault Indian Nation, and federal and state agencies will conduct a dye study March 18-21.

On March 19, red dye will be added to treated wastewater from Cosmo Specialty Fibers’ treatment plant. The DOH said that the dye may be visible in the water; however, it is not harmful to people, marine life or the environment. Scientists will monitor its movement over the next few days and pinpoint where pollution may come in contact with shellfish in the harbor.

The Department of Health is responsible for the safety of commercially harvested shellfish in the state. The Office of Environmental Health and Safety uses national standards to classify all areas.

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