Daily Reservoir and Pass-Thru Status Report
June 4, 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%
06/04/2021 202.2 289,869 43.7% 89.1 167,241 65.2% 457,110 49.7% 44.0 161,085 100.0%
06/03/2021 202.0 286,713 43.3% 88.6 159,190 62.1% 445,903 48.5% 44.0 161,085 100.0%
05/04/2021 197.2 217,506 32.8% 85.4 112,393 43.8% 329,899 35.9% 43.9 160,156 99.4%
06/04/2020 201.9 285,141 43.0% 90.1 183,978 71.8% 469,119 51.0% 44.0 161,085 100.0%
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
06/03/2021 138 410 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
06/03/2021 0 0 4,937 18,322 62,865 06/04/2021 7:15 AM 18.89
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/03/2021 MTD YTD 06/03/2021 MTD YTD 06/03/2021 MTD YTD
Air Temp 82     80        
Evaporation 111 450 24,284 266 580 22,196 377 1,030 46,480
Rainfall 1.02 1.02 15.91 2.30 2.3 16.89      
Stream Flows
Gauging Station 06/03/2021 MTD
NTRT Nueces River at Three Rivers, Texas 2,203 3,899
NRTT Nueces River at Tilden, Texas 979 1,169
FRTT Frio River at Tilden, Texas 653 1,089
SMTT San Miguel Creek at Tilden, Texas 1,120 2,876
ARWT Atascosa River at Whitsett, Texas 3,176 4,695
CCR Release from Choke Canyon Reservoir 58 173
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 288 512
NCAT Nueces River at Calallen, Texas 212 621
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 3,918 7,691
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   7,691
Reservoir Inflow 7,691
Estuary Inflows (NCAT + RBP) 621
Passthru Surplus / -Deficit -5,951
Report Generated 6/4/2021 at 8:34:16 AM