DEQ study tracks quality of Walla Walla Basin groundwater eastoregonian.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eastoregonian.com Daily Mail and Mail on Sunday newspapers.
The Oregon Department of Environmental Quality is calling for long-term monitoring of nitrates, bacteria and pesticides in the Walla Walla Basin to protect groundwater aquifers from future contamination.