With groundwater in parts of eastern Washington declining at an alarming rate, a new study confirms which areas are most vulnerable to the problem and could help set clearer goals for recovery efforts. The Washington State University study evaluated groundwater levels throughout the Washington portion of the Columbia Plateau Regional Aquifer System, which spans areas of Washington, Oregon and Idaho, and supplies up to a third of the region’s irrigation water.

Source: Eastern Washington’s rapidly declining groundwater highlighted in new study | News From The States