Trinity County, CA Water Table Trend
Trinity County, CA: the closest actual trend
Siskiyou County, CA, 72 miles from Trinity County, is the closest county with a qualifying well, and its water table is declining faster than most declining counties.
No well inside Trinity County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Trinity County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Siskiyou County, CA'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 Trinity County
Trinity County, California covers 3,179 square miles and is home to about 15,642 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Trinity County isn't one of them yet, see the methodology guide for the exact qualifying bar.