San Juan County, WA Water Table Trend
What the closest monitoring well shows for San Juan County
Clallam County, WA, 45 miles from San Juan 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 San Juan County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of San Juan County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Clallam County, WA'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 San Juan County
San Juan County, Washington covers 174 square miles and is home to about 18,668 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; San Juan County isn't one of them yet, see the methodology guide for the exact qualifying bar.