Richland Parish, LA Water Table Trend
Is the water table dropping in Richland Parish, LA?
Richland Parish's long-term well puts the trend at 0.1 ft per decade, holding roughly steady, based on 196 measurements since 1969.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Richland Parish's source well, in detail
Depth to water at the last reading was 20 ft below land surface. Readings span 1969-09-10 to 2026-06-24, 196 measurements from USGS well USGS-323029091430001 (Ri-89), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Richland Parish compares nationally
Richland Parish sits at rank 731st 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. Richland Parish, Louisiana is home to about 19,643 people. See the fastest-moving counties guide for how Richland Parish 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 Richland Parish 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.