Scientists used advanced technology to assess the risks. Officials uncover rising threat to US groundwater — here's what you ...

Voluntary efforts to curb groundwater pollution in eastern Oregon have failed for decades. This bill was supposed to change ...

An analysis of 500 watersheds found levels of organic carbon, phosphorus, and other pollutants up to 103 times higher after a ...

Gov. Tina Kotek backed the bill to modernize Oregon’s failed groundwater pollution laws. Kotek has been active in trying to ...