Table 3-4.
Identification and Initiation of Drought Responses

Source of Water Supply	Factors to be Considered in Initiating Drought Response(s)	Potential Drought Responses
Edwards Aquifer	Local/regional well levels Springflow maintenance Water needs for health & safety Availability of alternative sources	Reductions in allowable withdrawals Implementation of Drought Contingency Plans Increase reliance on alternative sources
Carrizo & Other Aquifers	Local/regional well levels Water stored in formation vs. use Acceptable long-term drawdown Production facility constraints	Implementation of Drought Contingency Plans Groundwater district rules Increase production facility capacity
Surface Water	Streamflow/reservoir storage Water right priority and special conditions Dependable supply vs. use Availability of alternative sources	Implementation of Drought Contingency Plans Coordination with TNRCC Watermaster Increase reliance on alternative sources