Daily Reservoir and Pass-Thru Status Report
February 27, 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%
02/27/2021 197.9 226,815 34.2% 86.2 123,267 48.1% 350,082 38.1% 43.5 156,467 97.1%
02/26/2021 197.9 226,815 34.2% 86.2 123,267 48.1% 350,082 38.1% 43.5 156,467 97.1%
01/27/2021 198.2 230,875 34.8% 86.8 131,815 51.4% 362,690 39.5% 43.9 160,156 99.4%
02/27/2020 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
02/26/2021 130 2,638 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
02/26/2021 0 708 1,570 1,534 28,653 02/27/2021 7:15 AM 8.89
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  02/26/2021 MTD YTD 02/26/2021 MTD YTD 02/26/2021 MTD YTD
Air Temp 70     82        
Evaporation 24 2,183 4,965 130 2,469 5,561 154 4,652 10,526
Rainfall 0.00 0.34 1.34 0.01 0.57 1.42      
Stream Flows
Gauging Station 02/26/2021 MTD
NTRT Nueces River at Three Rivers, Texas 62 1,928
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 6 454
CCR Release from Choke Canyon Reservoir 58 1,495
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 104 4,202
NCAT Nueces River at Calallen, Texas 29 390
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 5 437
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   437
Reservoir Inflow 437
Estuary Inflows (NCAT + RBP) 390
Passthru Surplus / -Deficit 0
Report Generated 2/27/2021 at 8:12:22 AM