Daily Reservoir and Pass-Thru Status Report
February 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%
02/21/2022 201.5 278,904 42.1% 90.5 190,909 74.5% 469,813 51.1% 44.0 161,085 100.0%
02/20/2022 201.5 278,904 42.1% 90.5 190,909 74.5% 469,813 51.1% 44.0 161,085 100.0%
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%
02/21/2021 197.9 226,815 34.2% 86.3 124,670 48.6% 351,485 38.2% 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
January YTD Remaining January YTD Remaining
02/20/2022 126 2,504 3,668 3,668 27,772 0 0 12,000
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
02/20/2022 0 0 276 1,852 136,391 02/21/2022 7:15 AM 9.12
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  02/20/2022 MTD YTD 02/20/2022 MTD YTD 02/20/2022 MTD YTD
Air Temp 74     73        
Evaporation 117 2,758 6,522 102 2,994 6,852 219 5,752 13,374
Rainfall 0.02 0.25 0.61 0.00 0.16 1.14      
Stream Flows
Gauging Station 02/20/2022 MTD
NTRT Nueces River at Three Rivers, Texas 71 1,426
NRTT Nueces River at Tilden, Texas 0 0
FRTT Frio River at Tilden, Texas 0 4
SMTT San Miguel Creek at Tilden, Texas 0 0
ARWT Atascosa River at Whitsett, Texas 6 147
CCR Release from Choke Canyon Reservoir 58 1,112
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 171 3,415
NCAT Nueces River at Calallen, Texas 0 9
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 13 318
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 02/01/2022 0
Return Flow Credit Effective   500
Required Passthru Monthly Target 2,500   318
Reservoir Inflow 318
Estuary Inflows (NCAT + RBP) 9
Passthru Surplus / -Deficit 0
Report Generated 2/21/2022 at 9:04:43 AM