The winter water level measurements play a critical role in in gauging our compliance with the 50/50 goal, to have 50 percent of the water remaining in the aquifer 50 years from now, by allowing us to monitor the decline of saturated thickness in the aquifer over the past year.
Knowing the amount of decline drives enforcement of study areas in places where water levels have dropped below the allowed annual 1.25 percent of saturated thickness. When study areas go into place, the landowner is notified and water use is monitored more frequently by the District. If the decline levels improve it can come out of a study area, however, if decline continues to exceed the allowable limit, the study area could be designated a conservation area by the District which may result in reductions of the maximum annual production rate.
Depth to water level measurements shown in the publication (see link below) were taken from November 2014 to February 2015. The measurements are taken during these winter months when demands for irrigation are lower so that a more representative static water level can be obtained. Every effort is made to capture this measurement when levels have recovered or stabilized.
As for next year, water level measurements should show a positive impact on aquifer declines because of significantly reduced pumping due to recent rains. Some decline will still occur however, but hopefully not as much as in years past. Recharge of aquifers due to surface precipitation will not be realized for decades and in the big picture is negligible. The aquifer is like a big bank account but if you are putting pennies in and taking dollar bills out the bank account will diminish. Conservation is still and will always be a priority even with the improved conditions.
