Daily Reservoir and Pass-Thru Status Report
February 23, 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%
02/23/2021 197.9 226,815 34.2% 86.2 123,267 48.1% 350,082 38.1% 43.6 157,385 97.7%
02/22/2021 197.9 226,815 34.2% 86.3 124,670 48.6% 351,485 38.2% 43.6 157,385 97.7%
01/23/2021 198.3 232,238 35.0% 86.7 130,369 50.9% 362,607 39.4% 44.0 161,085 100.0%
02/23/2020 202.5 294,634 44.5% 90.1 183,978 71.8% 478,612 52.1% 38.4 113,432 70.4%
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
January YTD Remaining January YTD Remaining
02/22/2021 129 2,120 0 0 31,440 3,270 3,270 8,730
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
02/22/2021 0 708 1,570 1,630 22,147 02/23/2021 7:15 AM 8.90
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  02/22/2021 MTD YTD 02/22/2021 MTD YTD 02/22/2021 MTD YTD
Air Temp 76     77        
Evaporation 212 1,688 4,470 269 1,939 5,031 481 3,627 9,501
Rainfall 0.00 0.34 1.34 0.00 0.56 1.41      
Stream Flows
Gauging Station 02/22/2021 MTD
NTRT Nueces River at Three Rivers, Texas 68 1,669
NRTT Nueces River at Tilden, Texas 0 0
FRTT Frio River at Tilden, Texas 0 3
SMTT San Miguel Creek at Tilden, Texas 0 0
ARWT Atascosa River at Whitsett, Texas 10 425
CCR Release from Choke Canyon Reservoir 58 1,264
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 152 3,768
NCAT Nueces River at Calallen, Texas 42 229
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 11 408
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 1,200   1,200
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied   78
Return Flow Credit Effective   500
Required Passthru Monthly Target 1,200   408
Reservoir Inflow 408
Estuary Inflows (NCAT + RBP) 229
Passthru Surplus / -Deficit 0
Report Generated 2/23/2021 at 1:43:09 PM