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Massive Manure Spill Closes Tillamook Bay To Shellfish Harvesting

Tillamook Bay at Garibaldi.

Tillamook Bay at Garibaldi.

Statesman Journal

Tillamook Bay was closed to commercial shellfish harvesting last week, following a massive spill of liquid manure from a nearby dairy. It was scheduled to reopen Wednesday night.

About 190,000 gallons of manure were released from an above-ground storage tank at Tony Silveira Dairy after a valve broke, said Wym Matthews, who oversees dairies for the Oregon Department of Agriculture.

The liquid manure pooled in a field near the dairy barns, flowed across three other landowners’ properties, and ended up in a slough that connects to a drainage system that pumps water into the Tillamook River, which then enters the bay, Matthews said.

ODA received several complaints about the spill on April 12. It responded that day and took 18 water samples. Follow-up sampling was done April 13, 14 and 17.

Read more at the Statesman Journal.

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