Groundwater levels are measured in the YCFCWCD 150 well network each spring and fall. The graph above show the average groundwater level of all the wells. This fall's 2019 levels dropped, as expected, after a long summer with no rain.  In the short term, the amount of drop or recovery depends on the winter rains. If there is more rain, there is less drop and more recovery. If it is dry, groundwater levels drop more and recover less.