Daily Reservoir and Pass-Thru Status Report
May 28, 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%
05/28/2021 201.7 282,012 42.5% 88.5 157,605 61.5% 439,617 47.8% 43.9 160,156 99.4%
05/27/2021 201.7 282,012 42.5% 88.5 157,605 61.5% 439,617 47.8% 43.9 160,156 99.4%
04/28/2021 196.9 213,589 32.2% 85.1 108,470 42.3% 322,059 35.0% 42.3 145,671 90.4%
05/28/2020 201.9 285,141 43.0% 89.6 175,504 68.5% 460,645 50.1% 43.7 158,306 98.3%
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
April YTD Remaining April YTD Remaining
05/27/2021 137 3,137 2,289 6,497 24,943 0 4,500 7,500
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
05/27/2021 0 494 4,937 26,996 350,480 05/28/2021 7:15 AM 24.26
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  05/27/2021 MTD YTD 05/27/2021 MTD YTD 05/27/2021 MTD YTD
Air Temp 89     89        
Evaporation 291 6,259 22,888 230 5,374 20,898 521 11,633 43,786
Rainfall 0.00 9.52 12.47 0.00 8.45 12.34      
Stream Flows
Gauging Station 05/27/2021 MTD
NTRT Nueces River at Three Rivers, Texas 266 33,995
NRTT Nueces River at Tilden, Texas 0 2,440
FRTT Frio River at Tilden, Texas 48 39,859
SMTT San Miguel Creek at Tilden, Texas 9 11,546
ARWT Atascosa River at Whitsett, Texas 62 21,447
CCR Release from Choke Canyon Reservoir 58 1,425
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 147 4,897
NCAT Nueces River at Calallen, Texas 36 9,120
RBP Rincon Bayou Pipeline 0 1,370
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 265 83,976
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 10,551   10,551
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied   85
Return Flow Credit Effective   500
Required Passthru Monthly Target 10,551   10,551
Reservoir Inflow 83,976
Estuary Inflows (NCAT + RBP) 10,490
Passthru Surplus / -Deficit 524
Report Generated 5/28/2021 at 7:40:26 AM