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SNOHOMISH, Wash. - State officials are testing water quality to determine the extent of damage from a large manure spill near Snohomish.

A dike breach in a dairy waste lagoon with a 21-million-gallon capacity sent a large amount of cow manure flowing through farm fields and into the Snohomish River.

A 30-foot-wide section of the dike failed either late Sunday or early Monday.

Officials with several agencies were at Bartelheimer Brothers dairy today to determine what happened.

They're also testing for fecal coliform bacteria, which can cause illness, and dissolved oxygen levels, which can affect fish.

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