Cascade County, MT Water Table Trend
What the closest monitoring well shows for Cascade County
Lewis and Clark County, MT, 50 miles from Cascade County, is the closest county with a qualifying well, and its water table is declining at a typical pace for a declining county.
No well inside Cascade County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Cascade County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Lewis and Clark County, MT's full page. See the no-data guide for why a county this close to a qualifying well still doesn't get its own number.
About Cascade County
Cascade County, Montana covers 2,698 square miles and is home to about 84,523 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Cascade County isn't one of them yet, see the methodology guide for the exact qualifying bar.