Daily Reservoir and Pass-Thru Status Report
June 5, 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%
06/05/2021 202.9 301,045 45.4% 89.4 172,173 67.2% 473,218 51.5% 44.0 161,085 100.0%
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%
05/05/2021 197.3 218,822 33.0% 85.6 115,055 44.9% 333,877 36.3% 44.0 161,085 100.0%
06/05/2020 201.9 285,141 43.0% 90.1 183,978 71.8% 469,119 51.0% 43.9 160,156 99.4%
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
06/04/2021 139 548 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
06/04/2021 0 0 4,937 25,805 88,670 06/05/2021 7:15 AM 21.49
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/04/2021 MTD YTD 06/04/2021 MTD YTD 06/04/2021 MTD YTD
Air Temp 83     83        
Evaporation 159 609 24,443 145 725 22,341 304 1,334 46,784
Rainfall 0.00 1.02 15.91 0.00 2.3 16.89      
Stream Flows
Gauging Station 06/04/2021 MTD
NTRT Nueces River at Three Rivers, Texas 4,943 8,841
NRTT Nueces River at Tilden, Texas 4,307 5,477
FRTT Frio River at Tilden, Texas 8,992 10,081
SMTT San Miguel Creek at Tilden, Texas 3,236 6,112
ARWT Atascosa River at Whitsett, Texas 5,439 10,133
CCR Release from Choke Canyon Reservoir 18 191
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 1,296 1,809
NCAT Nueces River at Calallen, Texas 917 1,538
RBP Rincon Bayou Pipeline 124 124
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 17,152 24,844
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 24,844
Estuary Inflows (NCAT + RBP) 1,662
Passthru Surplus / -Deficit -20,219
Report Generated 6/5/2021 at 9:54:04 AM