In another thread, DanS said:
Should be not much of a problem with the water table this spring (in the lower 48) between CA's multiple drenchers/floods and the East Coast's snows/floods.
I'm president of, and operate our 58 meter neighborhood mutual water company (for 15 years now). We have 6 hard rock wells. One of them went dry a couple of years ago, so I embarked on a routine of weekly static water level monitoring. It took me a while to make all of the wells probe-able. I got the $900 tape probe stuck a few times. That was not fun.
Anyway, after I started gathering readings into a spreadsheet, it took a while to figure out how to reduce all the data so it would plot on one graph. All of the wells but 2 are drilled into different formations, and all have differing static water levels.
I finally decided to use the first readings as an arbitrary "zero" and plot the change from that on the graph. Coincidentally, the rainfall in inches and well change in feet plot nicely.
"A" and "B" are in the same formation, so they track each other. Any "V" shaped drop in a well line is because I read the well level too soon after it was used and it hadn't fully recovered yet back to static level.
Well "4" is the one that went dry. It's still-off line and recovering nicely. It's static level when drilled in the 80s was 44 feet down. When I started measuring in Dec 2008, it was down to 338' from the top of the casing. Now it's up to 280', and rising so fast with all our rains that I'm going to need to figure out how to rescale the graph so the other well lines don't get squished down by Excel's autoscaling.
I reset the rain (dark blue line) to zero on July 1st, which is when the precip year starts here.