Daily Reservoir and Pass-Thru Status Report
June 10, 2021
Reservoir Supply (AcFt); Stream Flow (AcFt); Evaporation (AcFt); Elevation (Ft); Rainfall (Inches); Temperature (°F); Gage Height (Ft MSL)
RESERVOIR STATISTICS
Effective June 24, 2017, updated total reservor capacities for Choke Canyon Reservoir (2012 TWDB Volumetric Survey) and
Lake Corpus Christi (2016 TWDB Volumetric Survey) are being reflected in the Daily Reservoir System and Pass-Thru Status Report
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined Lake Texana
Date Elevation Volume % Capacity Elevation Volume % Capacity Volume % Capacity Elevation Volume % Capacity
FULL 220.5 662,821 100% 94.0 256,339 100% 919,160 100% 44.0 161,085 100%
06/10/2021 204.5 327,318 49.4% 91.8 214,326 83.6% 541,644 58.9% 44.0 161,085 100.0%
06/09/2021 204.5 327,318 49.4% 91.7 212,485 82.9% 539,803 58.7% 44.0 161,085 100.0%
05/10/2021 197.4 220,142 33.2% 85.6 115,055 44.9% 335,197 36.5% 43.9 160,156 99.4%
06/10/2020 201.7 282,012 42.5% 90.0 182,266 71.1% 464,278 50.5% 43.8 159,229 98.8%
LAKE TEXANA WATER SUPPLY*
* The split between Non-Interruptible and Interruptible amounts are updated monthly, usually the first working day of the month, so they reflect the total and remaining amounts as of the end of the previous month
Date Daily Intake MTD Non-Interuptible Interruptible
May YTD Remaining May YTD Remaining
06/09/2021 183 1,337 0 6,497 24,943 3,684 8,184 3,816
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
06/09/2021 0 0 4,937 14,471 263,330 06/10/2021 7:15 AM 18.14
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/09/2021 MTD YTD 06/09/2021 MTD YTD 06/09/2021 MTD YTD
Air Temp 89     90        
Evaporation 293 2,054 25,888 290 1,944 23,560 583 3,998 49,448
Rainfall 0.00 1.02 15.91 0.00 2.3 16.89      
Stream Flows
Gauging Station 06/09/2021 MTD
NTRT Nueces River at Three Rivers, Texas 2,700 51,677
NRTT Nueces River at Tilden, Texas 1,114 15,773
FRTT Frio River at Tilden, Texas 1,002 33,764
SMTT San Miguel Creek at Tilden, Texas 31 7,528
ARWT Atascosa River at Whitsett, Texas 276 40,117
CCR Release from Choke Canyon Reservoir 58 306
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 439 3,378
NCAT Nueces River at Calallen, Texas 102 3,605
RBP Rincon Bayou Pipeline 237 1,185
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 3,675 92,664
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 23,000   23,000
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied   619
Return Flow Credit Effective   500
Required Passthru Monthly Target 23,000   23,000
Reservoir Inflow 92,664
Estuary Inflows (NCAT + RBP) 4,790
Passthru Surplus / -Deficit -17,091
Report Generated 6/10/2021 at 9:49:40 AM