YAKIMA, Wash. (AP) — Washington state has fined a Yakima Valley dairy $22,000 for over-applying liquid manure to a field and causing runoff to reach the Yakima River.

The state Department of Ecology says DeRuyter Brothers Dairy in Outlook, southeast of Yakima, violated its state and federal discharge permits and applied liquid manure to lands not specified in its nutrient management plan.

In a statement Thursday, the agency said inspectors photographed discharge from the field to a drain on March 25, 2010, after receiving a report about the discharge. The drain led to Sulphur Creek and the Yakima River. Test results from samples taken over several days showed E. coli bacteria levels in the runoff were 2,400 times greater than allowed.

The dairy has 30 days to pay the penalty or file an appeal.

Copyright 2010 The Associated Press.