Daily Reservoir and Pass-Thru Status Report
January 21, 2022
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%
01/21/2022 201.8 283,575 42.8% 90.9 197,976 77.2% 481,551 52.4% 43.0 151,919 94.3%
01/20/2022 201.8 283,575 42.8% 91.1 201,561 78.6% 485,136 52.8% 43.1 152,823 94.9%
12/21/2021 202.3 291,453 44.0% 91.3 205,177 80.0% 496,630 54.0% 43.9 160,156 99.4%
01/21/2021 198.3 232,238 35.0% 86.7 130,369 50.9% 362,607 39.4% 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
December YTD Remaining December YTD Remaining
01/20/2022 60 2,301 3,999 28,563 2,877 0 12,000 0
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
01/20/2022 67 247 247 1,030 20,265 01/21/2022 7:15 AM 8.28
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  01/20/2022 MTD YTD 01/20/2022 MTD YTD 01/20/2022 MTD YTD
Air Temp 41     43        
Evaporation 137 2,794 2,794 135 2,959 2,959 272 5,753 5,753
Rainfall 0.00 0.07 0.07 0.01 0.06 0.06      
Stream Flows
Gauging Station 01/20/2022 MTD
NTRT Nueces River at Three Rivers, Texas 60 993
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 7 169
CCR Release from Choke Canyon Reservoir 58 1,151
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 210 3,221
NCAT Nueces River at Calallen, Texas 0 19
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 2 131
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 2,500   2,500
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied 01/01/2022 0
Return Flow Credit Effective   500
Required Passthru Monthly Target 2,500   131
Reservoir Inflow 131
Estuary Inflows (NCAT + RBP) 19
Passthru Surplus / -Deficit 0
Report Generated 1/21/2022 at 3:51:08 PM