Daily Reservoir and Pass-Thru Status Report
November 7, 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%
11/07/2021 202.9 301,045 45.4% 91.8 214,326 83.6% 515,371 56.1% 43.8 159,229 98.8%
11/06/2021 202.9 301,045 45.4% 91.8 214,326 83.6% 515,371 56.1% 43.8 159,229 98.8%
10/07/2021 203.5 310,778 46.9% 92.3 223,623 87.2% 534,401 58.1% 42.8 150,120 93.2%
11/07/2020 198.9 240,518 36.3% 87.4 140,670 54.9% 381,188 41.5% 43.1 152,823 94.9%
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
October YTD Remaining October YTD Remaining
11/06/2021 134 804 0 16,318 15,122 0 12,000 0
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
11/06/2021 0 0 9,327 1,939 12,011 11/07/2021 7:15 AM 8.90
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  11/06/2021 MTD YTD 11/06/2021 MTD YTD 11/06/2021 MTD YTD
Air Temp 69     71        
Evaporation 159 816 69,242 140 862 61,667 299 1,678 130,909
Rainfall 0.00 0.66 28.1 0.00 0.3 37.06      
Stream Flows
Gauging Station 11/06/2021 MTD
NTRT Nueces River at Three Rivers, Texas 76 454
NRTT Nueces River at Tilden, Texas 0 0
FRTT Frio River at Tilden, Texas 0 1
SMTT San Miguel Creek at Tilden, Texas 0 0
ARWT Atascosa River at Whitsett, Texas 8 21
CCR Release from Choke Canyon Reservoir 58 345
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 151 1,066
NCAT Nueces River at Calallen, Texas 18 34
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 19 110
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 4,000   4,000
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied 11/01/2021 2,000
Return Flow Credit Effective   500
Required Passthru Monthly Target 4,000   110
Reservoir Inflow 110
Estuary Inflows (NCAT + RBP) 34
Passthru Surplus / -Deficit 0
Report Generated 11/7/2021 at 12:14:48 PM