Daily Reservoir and Pass-Thru Status Report
June 13, 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%
06/13/2021 204.5 327,318 49.4% 91.9 216,174 84.3% 543,492 59.1% 44.0 161,085 100.0%
06/12/2021 204.5 327,318 49.4% 91.9 216,174 84.3% 543,492 59.1% 44.0 161,085 100.0%
05/13/2021 197.4 220,142 33.2% 85.8 117,754 45.9% 337,896 36.8% 44.0 161,085 100.0%
06/13/2020 201.7 282,012 42.5% 89.8 178,868 69.8% 460,880 50.1% 43.6 157,385 97.7%
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
06/12/2021 190 1,906 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
06/12/2021 0 0 4,937 5,221 284,570 06/13/2021 7:15 AM 12.34
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/12/2021 MTD YTD 06/12/2021 MTD YTD 06/12/2021 MTD YTD
Air Temp 90     92        
Evaporation 351 3,098 26,932 108 2,699 24,315 459 5,797 51,247
Rainfall 0.00 1.02 15.91 0.00 2.3 16.89      
Stream Flows
Gauging Station 06/12/2021 MTD
NTRT Nueces River at Three Rivers, Texas 1,344 55,983
NRTT Nueces River at Tilden, Texas 1,133 18,836
FRTT Frio River at Tilden, Texas 132 34,583
SMTT San Miguel Creek at Tilden, Texas 13 7,580
ARWT Atascosa River at Whitsett, Texas 119 40,561
CCR Release from Choke Canyon Reservoir 58 478
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 455 4,702
NCAT Nueces River at Calallen, Texas 113 3,926
RBP Rincon Bayou Pipeline 235 1,863
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 1,431 97,667
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 97,667
Estuary Inflows (NCAT + RBP) 5,790
Passthru Surplus / -Deficit -16,091
Report Generated 6/13/2021 at 7:58:59 AM