Table 3-2.
List of Major Reservoirs¹
South Central Texas Region

Reservoir	Water Right Owner	Certificate of Adjudication Number	Authorized Diversion (acft/yr)	Firm Yield (acft/yr)	Purposes
San Antonio Basin
Medina Lake System	Bexar-Medina-Atascosa Counties WCID #1	19-2130	66,750	0^6	Irrigation, municipal, domestic, livestock
Victor Braunig Lake	City Public Service Board of San Antonio	19-2161	12,000^2	>12,000^7	Steam-electric power generation
Calaveras Lake	City Public Service Board of San Antonio	19-2162	37,000^3	>37,000^7	Steam-electric power generation
Guadalupe Basin
Canyon Reservoir	Guadalupe-Blanco River Authority	18-2074	50,000^4	~90,000^8	Municipal, industrial, steam-electric & hydropower, irrigation, flood protection
Coleto Creek Reservoir	Central Power and Light Company	18-5486	12,500^5	>12,500^7	Steam-electric power generation
^1 See Table 3-3 for a summary of run-of-river permits. ^2 Includes rights to divert up to 12,000 acft/yr from the San Antonio River to Braunig Lake and to consume up to 12,000 acft/yr at Braunig Lake. ^3 Includes rights to divert up to 60,000 acft/yr of reclaimed wastewater from the San Antonio River to Calaveras Lake and to consume up to 37,000 acft/yr. ^4 GBRA has applied to TNRCC to increase Canyon Reservoir authorized diversions to approximately 90,000 acft/yr. ^5 Includes rights to divert up to 20,000 acft/yr from the Guadalupe River to Coleto Creek Reservoir and to consume up to 12,500 acft/yr. ^6 Based on operation of the Medina Lake System in accordance with CA #19-2130C. ^7 The reservoir and supplemental authorized diversions from the adjacent river could support a firm yield in excess of the authorized consumptive use, however, operations of steam-electric power generation facilities could be impaired. ^8 TNRCC, GBRA Application #18-2074D to amend CA #18-2074, as amended, 1999.