Daily Reservoir and Pass-Thru Status Report
June 6, 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%
06/06/2021 203.7 314,054 47.4% 89.9 180,563 70.4% 494,617 53.8% 44.0 161,085 100.0%
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%
05/06/2021 197.3 218,822 33.0% 85.7 116,400 45.4% 335,222 36.5% 44.0 161,085 100.0%
06/06/2020 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
06/05/2021 139 687 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
06/05/2021 0 0 4,937 26,996 115,666 06/06/2021 7:15 AM 21.40
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/05/2021 MTD YTD 06/05/2021 MTD YTD 06/05/2021 MTD YTD
Air Temp 86     88        
Evaporation 268 877 24,711 218 943 22,559 486 1,820 47,270
Rainfall 0.00 1.02 15.91 0.00 2.3 16.89      
Stream Flows
Gauging Station 06/05/2021 MTD
NTRT Nueces River at Three Rivers, Texas 7,424 16,265
NRTT Nueces River at Tilden, Texas 3,970 9,447
FRTT Frio River at Tilden, Texas 12,029 22,111
SMTT San Miguel Creek at Tilden, Texas 1,052 7,164
ARWT Atascosa River at Whitsett, Texas 14,649 24,783
CCR Release from Choke Canyon Reservoir 0 191
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 97 1,905
NCAT Nueces River at Calallen, Texas 1,405 2,944
RBP Rincon Bayou Pipeline 201 325
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 20,505 45,349
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 45,349
Estuary Inflows (NCAT + RBP) 3,269
Passthru Surplus / -Deficit -18,612
Report Generated 6/6/2021 at 9:07:18 AM