REQUESTOR: Mr. Jason Coleman with the South Plains Underground Water Conservation District on behalf of Groundwater Management Area 2. EXECUTIVE SUMMARY:

We ran the groundwater availability model for the southern part of the Ogallala Aquifer for fifty year scenarios with pumping rates based on one, two, and 0.64 feet of decline. The 0.64 foot decline scenario corresponds to the average decline across the entire groundwater management area for the most recent 10 year period. The resulting water budgets showed that the application of average decline for the projected period of fifty years results in the fewest number of cells dewatering. However, the one and two foot scenarios appear to more closely approximate the pumping conditions exhibited during the last year of the transient phase of the groundwater availability model run