water quality

Washington Gov. Jay Inslee, a Democrat, and his Republican challenger Bill Bryant sparred in their last scheduled debate in Pasco Wednesday night over…

As information about Friday’s oil train derailment in Mosier, Oregon, trickled in, officials did not immediately offer any information on the condition of…

The disclosure of the presence of lead in the drinking water at several public schools in Portland could have statewide implications. But it's not yet…

Testing for lead in Washington schools is still voluntary seven years after the state passed rules to make it mandatory. That’s because state lawmakers…

Cleanup of a hazardous chemical called hexavalent chromium in the groundwater at the Hanford Nuclear Reservation in southeast Washington is going faster…

Nothing spoils a summer swim in your favorite lake like an algae bloom. These become more common as the weather warms up. A lake in Federal Way,…