Washington County, MN Water Table Trend
Is the water table dropping in Washington County, MN?
Washington County's representative monitoring well shows depth to water holding roughly steady, a fitted trend of 0.3 ft per decade over 47 years of readings.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Washington County's source well, in detail
Depth to water at the last reading was 27.8 ft below land surface. Readings span 1977-09-26 to 2024-08-12, 11 measurements from USGS well MN040-451602092515601 (Pdcj-U12 032n20w17baaadb01 W816 0000138286), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Washington County compares nationally
Washington County sits at rank 873rd of 1,449 ranked counties, ordered rising-to-declining, so a low number means a rising water table and a high one means fast decline. Washington County, Minnesota is home to about 283,960 people. See the fastest-moving counties guide for how Washington County stacks up against the most extreme cases nationally.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Washington County can be stable in depth and still worth testing for quality, or declining and still test clean, the two are measured separately, and only a direct test settles the second one.