Union County, TN Water Table Trend
What the closest monitoring well shows for Union County
Bell County, KY, 32 miles from Union County, is the closest county with a qualifying well, and its water table is rising, getting shallower over time.
No well inside Union County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Union County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Bell County, KY'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 Union County
Union County, Tennessee covers 224 square miles and is home to about 21,064 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Union County isn't one of them yet, see the methodology guide for the exact qualifying bar.