Daily Reservoir and Pass-Thru Status Report
March 1, 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%
03/01/2021 197.8 225,471 34.0% 86.4 126,081 49.2% 351,552 38.2% 43.5 156,467 97.1%
02/28/2021 197.9 226,815 34.2% 86.2 123,267 48.1% 350,082 38.1% 43.5 156,467 97.1%
02/01/2021 198.2 230,875 34.8% 86.6 128,931 50.3% 359,806 39.1% 43.8 159,229 98.8%
03/01/2020 202.3 291,453 44.0% 90.0 182,266 71.1% 473,719 51.5% 38.2 111,911 69.5%
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
February YTD Remaining February YTD Remaining
02/28/2021 128 2,895 0 0 31,440 0 3,270 8,730
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
02/28/2021 0 708 2,278 1,354 31,458 03/01/2021 7:15 AM 8.69
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  02/28/2021 MTD YTD 02/28/2021 MTD YTD 02/28/2021 MTD YTD
Air Temp 84     85        
Evaporation 125 2,402 5,184 132 2,609 5,701 257 5,011 10,885
Rainfall 0.04 0.38 1.38 0.00 0.85 1.7      
Stream Flows
Gauging Station 02/28/2021 MTD
NTRT Nueces River at Three Rivers, Texas 61 2,051
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 5 464
CCR Release from Choke Canyon Reservoir 58 1,610
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 94 4,389
NCAT Nueces River at Calallen, Texas 27 449
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 4 446
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   446
Reservoir Inflow 446
Estuary Inflows (NCAT + RBP) 449
Passthru Surplus / -Deficit 0
Report Generated 3/1/2021 at 8:43:35 AM