Table 1
Bastrop County Carrizo-Wilcox (Simsboro) Aquifer Allocations
Drought "Below Normal Rainfall" Conditions
		2040	2050
1	SUPPLY (acft/yr)
	Carrizo-Wilcox Aquifer Supply per Lower Colorado RWPG (4/18/2001)	21,950	21,950
	Additional Wilcox Formation Recharge per TWDB (5/8/2001)	2,455	2,455
	TOTAL SUPPLY (acft/yr)	24,405	24,405
2	DROUGHT "BELOW NORMAL RAINFALL" DEMAND (acft/yr)
	Region K Carrizo-Wilcox Aquifer Demand	12,597	13,341
	Region L Simsboro Aquifer (SCTN-3c) Demand 1	10,362	10,382
	Region L Carrizo-Wilcox Aquifer (CZ-10D) Demand 2	4,002	12,500
	TOTAL DROUGHT DEMAND (acft/yr)	26,961	36,223
3	SURPLUS/(DEFICIT) (acft/yr)
	TOTAL SURPLUS/(DEFICIT) (acft/yr)	(2,556)	(11,818)
1 Water management strategy for Bexar County.
2 Water management strategy for Comal and Guadalupe Counties.
Table 2
Bastrop County Carrizo-Wilcox (Simsboro) Aquifer Allocations
Average "Normal Rainfall" Conditions
		2040	2050
1	SUPPLY (acft/yr)
	Carrizo-Wilcox Aquifer Supply per Lower Colorado RWPG (4/18/2001)	21,950	21,950
	Additional Wilcox Formation Recharge per TWDB (5/8/2001)	2,455	2,455
	TOTAL SUPPLY (acft/yr)	24,405	24,405
2	AVERAGE "NORMAL RAINFALL" DEMAND (acft/yr)
	Region K Carrizo-Wilcox Aquifer Demand 1	10,833	11,473
	Region L Simsboro Aquifer (SCTN-3c) Demand 2	10,362	10,382
	Region L Carrizo-Wilcox Aquifer (CZ-10D) Demand 3	0	0
	TOTAL AVERAGE DEMAND (acft/yr)	21,195	21,855
3	SURPLUS/(DEFICIT) (acft/yr)
	TOTAL SURPLUS/(DEFICIT) (acft/yr)	3,210	2,550
1 Calculated as 86 percent of Drought "Below Normal Rainfall" Demand in Table 1 pursuant to
comparison of TWDB projections of demand under "Normal" and "Below Normal" Rainfall conditions.
2 Pumpage from the Simsboro Aquifer to meet demands in Bexar County associated with this water
management strategy is not expected to vary with climatological (average vs. drought) conditions.
Adjustments to Region L demands from the Carrizo-Wilcox Aquifer are associated with water
management strategy CZ-10D, as explained in footnote 3 below.
3 Municipal water suppliers in Comal and Guadalupe Counties will rely primarily upon nearby
sources of supply such as the Guadalupe River, Canyon Reservoir, the Edwards Aquifer, the
Schertz-Seguin Water Supply Project, and other groundwater available in Gonzales County.
These municipal water suppliers are expected to use more distant sources such as Bastrop
County groundwater only when absolutely necessary during drought.