South Central Texas Region County = Bexar
County Summary of Projected Water Needs (Shortages) and Water Management Strategies User Group(s) = all
 
Projected Water Needs (acft/yr)
User Group(s) 2000 2010 2020 2030 2040 2050 Notes
  Municipal   131,884 164,107 206,398 272,467 326,339 364,328  
  Industrial 0 0 0 1,428 4,757 8,190  
  Steam-Electric 0 0 0 0 0 0  
  Mining 4,963 4,936 5,201 5,406 5,645 5,962  
  Irrigation   14,059 10,935 9,376 7,883 6,453 5,082  
  Total Needs   150,906 179,978 220,975 287,184 343,194 383,562  
Mun, Ind, S-E, & Min Needs 136,847 169,043 211,599 279,301 336,741 378,480
Irrigation Needs 14,059 10,935 9,376 7,883 6,453 5,082
     
Water Management Strategies (acft/yr) Candidate  
ID# Description New Supply 2000* 2010 2020 2030 2040 2050 Notes
L-10 (Mun.) Demand Reduction (Conservation)   33,528 42,509 41,210 36,533 38,834 40,934 1
L-15 Edwards Irrigation Transfers 42,686 25,000 32,986 32,986 32,986 32,986 32,986 2, 3
L-10 (Irr.) Demand Reduction (Conservation) w/ Transfer 27,314 27,314 27,314 27,314 27,314 27,314 27,314 4
SSWSP Schertz-Seguin Water Supply Project (Carrizo) 20,000 3,919 3,919 3,919 3,919 3,919 3,919 5
WCRWSP Western Canyon Regional Water Supply Project 10,527 4,500 4,500 4,500 4,500 500 500 6
CRWA Lake Dunlap WTP Expansion & Mid-Cities Project 5,200 5,200 5,200 0 0 0 0 7
BMWD Carrizo Aquifer - Bexar & Guadalupe (BMWD) 4,000 4,000 4,000 4,000 4,000 4,000 4,000 8
BMWD Trinity Aquifer - Bexar (BMWD) 1,000 1,000 1,000 1,000 1,000 1,000 1,000 8
CZ-10C Carrizo Aquifer - Wilson & Gonzales 16,000 16,000 16,000 16,000 16,000 16,000 16,000 9
SCTN-3c Simsboro Aquifer 55,000 55,000 55,000 55,000 55,000 55,000 55,000 10
SCTN-16 Lower Guadalupe River Diversions 94,500 94,500 94,500 94,500 94,500 94,500 11
L-18a Edwards Recharge - Type 2 Projects 21,577 13,451 21,577 21,577 21,577 21,577 12
SAWS SAWS Recycled Water Program 52,215 19,826 26,737 35,824 43,561 52,215 13, 14
LCRA New Colorado River Diversion Option 150,000 66,000 132,000 132,000 132,000 15
SCTN-17 Desalination of Seawater (75 mgd) 84,012 56,008 84,012 16
SCTN-1a Aquifer Storage & Recovery - Regional 17
SCTN-4 Brush Management 18
SCTN-5 Weather Modification 18
SCTN-9 Rainwater Harvesting 18
  Small Aquifer Recharge Dams 18
  Edwards Aquifer Recharge & Recirculation Systems  
  Cooperation w/ Corpus Christi for New Water Sources  
  Additional Storage (ASR and/or Surface)  
L-10 (Irr.) Demand Reduction (Conservation)   1,905 1,905 1,905 1,905 1,905 1,905 19
Total New Supplies 177,366 322,110 396,648 467,058 529,104 567,862
 
Total System Mgmt. Supply / Deficit 26,460 142,132 175,673 179,874 185,910 184,300
Mun, Ind, S-E, & Min System Mgmt. Supply / Deficit 38,614 151,162 183,144 185,852 190,458 187,477
Irrigation System Mgmt. Supply / Deficit -12,154 -9,030 -7,471 -5,978 -4,548 -3,177
 
Notes:
* Candidate New Supplies shown for year 2000 are identified for priority implementation, but will not be available immediately.
1 Many Conservation strategies included in projected water demands.  Supplies shown reflect implementation of additional conservation measures.
2 Candidate New Supply to be shared among Uvalde, Medina, Atascosa, and Bexar Counties.
3 Pursuant to draft EAA Critical Period Management rules, Candidate New Supply represents approximately 85 percent of the estimated annual
transfer of 50,219 acft (about 53 percent of a maximum annual transfer of 95,430 acft based on Proposed Permits prorated to 400,000 acft/yr).
4 Pursuant to draft EAA Critical Period Management rules, Candidate New Supply represents approximately 85 percent of the estimated annual  
transfer of 32,134 acft (based on installation of LEPA systems on about 53 percent of applicable acreage in Bexar, Medina, & Uvalde Counties). 
5 Project in implementation phase.  Includes delivery of groundwater from southern Gonzales County to the City of Schertz.
6 Project in implementation phase.  Includes delivery of GBRA Canyon Reservoir water from Lake Dunlap to entities in Bexar County.
Project is dependent upon amendment of CA# 18-2074 authorizing additional diversions from Canyon Reservoir.
7 Project in implementation phase.  Includes delivery of Canyon Reservoir water to CRWA's member entities.  Contract expires in 2018.
8 Project in implementation phase.  Non-interruptible supplies identified by BMWD in Water Supply Program of 1/31/2000.
9 Includes 11,000 acft/yr and 5,000 acft/yr. from Wilson and Gonzales Counties, respectively.  Effects on regional aquifer levels quantified.
10 Effects on regional aquifer levels quantified. Region L estimates of groundwater development exceed Region K estimates of availability in and
beyond 2030.  Regions have agreed that discussion of differences will be more productive upon completion of new Groundwater Availability Models.
11 Candidate New Supply includes existing water rights, unappropriated streamflow, off-channel storage, and groundwater.
12 Includes 15 recharge enhancement projects on streams from the Nueces River in the west to the Blanco River in the east.
Alternative size projects at identified locations are consistent with Regional Water Plan.
13 Current SAWS Reuse Water Program is included as 24,941 acft/yr (consumptive reuse) in existing supply.
14 Future use of reuse water for non-potable uses and based on goal of meeting 20 percent of SAWS projected water demand.
15 Candidate New Supply to be shared by Bexar and Hays Counties.  Based on LCRA Regional Water Sharing Alternatives (7/6/2000).
Delivery to Bexar County through diversion from Colorado River @ Bay City.
16 Saltwater intake located in San Antonio Bay.
17 SAWS ASR program in southern Bexar County increases reliability of Edwards Aquifer supply and reduces seasonal aquifer demands.
18 Option expected to provide additional water supply in many years, but dependable supply during drought is presently unquantified.
19 Estimates based on remaining irrigation water conservation potential through LEPA installation after consideration of Edwards Irrigation
Transfers (L-15) and transfer of water conserved through irrigation Demand Reduction (L-10) to Bexar County municipal supply.