Daily Reservoir and Pass-Thru Status Report
June 16, 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%
06/16/2021 204.5 327,318 49.4% 92.0 218,027 85.1% 545,345 59.3% 44.0 161,085 100.0%
06/15/2021 204.6 328,994 49.6% 92.0 218,027 85.1% 547,021 59.5% 44.0 161,085 100.0%
05/16/2021 198.2 230,875 34.8% 85.8 117,754 45.9% 348,629 37.9% 43.9 160,156 99.4%
06/16/2020 201.6 280,455 42.3% 89.7 177,182 69.1% 457,637 49.8% 43.5 156,467 97.1%
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
06/15/2021 122 2,370 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
06/15/2021 68 105 5,042 2,878 294,991 06/16/2021 7:15 AM 10.49
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/15/2021 MTD YTD 06/15/2021 MTD YTD 06/15/2021 MTD YTD
Air Temp 93     92        
Evaporation 322 4,163 27,997 205 3,574 25,190 527 7,737 53,187
Rainfall 0.00 1.61 16.5 0.05 2.49 17.08      
Stream Flows
Gauging Station 06/15/2021 MTD
NTRT Nueces River at Three Rivers, Texas 895 59,594
NRTT Nueces River at Tilden, Texas 242 20,513
FRTT Frio River at Tilden, Texas 61 34,782
SMTT San Miguel Creek at Tilden, Texas 8 7,607
ARWT Atascosa River at Whitsett, Texas 76 40,815
CCR Release from Choke Canyon Reservoir 58 651
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 615 6,330
NCAT Nueces River at Calallen, Texas 156 4,298
RBP Rincon Bayou Pipeline 238 2,572
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 906 101,332
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 101,332
Estuary Inflows (NCAT + RBP) 6,870
Passthru Surplus / -Deficit -15,011
Report Generated 6/16/2021 at 9:39:15 AM