I'm often asked: "What's the water table doing?" It's a perfectly good question, but a difficult one to answer as succinctly as asked - especially in our area where the variability of conditions - from rainfall to actual measured declines - is so variable. And averages only seem to confuse the issue, so I try to stay away from them.
Case in point: our water level elevation data from Thomas County - the heart of our GMD area. The graph below shows four of the sixty-seven wells measured every Janauary to describe both the water table elevations and the saturated thickness. (Click on the graph to enlarge it) The wells are measured to the nearest 1/100th of a foot. These 4 are the observation wells with: the most saturated thickness (ST) in 1965; the least ST in 1965; showing the most decline (1965-2008); and showing the least decline (1965-2008). I have also included (heavy black line) the annual average of all 67 wells.