LYNDEN, Wash. — Four Whatcom County wastewater treatment plants received Outstanding Performance Awards from the State Department of Ecology.

The Department says the awards were given to treatment plants that did an exceptional job of meeting the state pollution limits and obtaining the required permits.

A third of all treatment plants in Washington met the requirements and were working at high quality performance levels.

Plants in Lynden, Birch Bay, Diablo and Newhalem made the cut.