Daily Reservoir and Pass-Thru Status Report
January 3, 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%
01/03/2021 198.4 233,606 35.2% 86.8 131,815 51.4% 365,421 39.8% 44.0 161,085 100.0%
01/02/2021 198.4 233,606 35.2% 86.8 131,815 51.4% 365,421 39.8% 43.9 160,156 99.4%
12/03/2020 198.8 239,125 36.1% 87.2 137,687 53.7% 376,812 41.0% 44.0 161,085 100.0%
01/03/2020 202.8 299,436 45.2% 90.7 194,426 75.8% 493,862 53.7% 39.1 118,865 73.8%
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
01/02/2021 135 270 3,197 31,515 -75 0 4,500 7,500
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
01/02/2021 0 0 0 4,367 11,811 01/03/2021 7:15 AM 11.84
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  01/02/2021 MTD YTD 01/02/2021 MTD YTD 01/02/2021 MTD YTD
Air Temp 61     62        
Evaporation 72 112 112 93 203 203 165 315 315
Rainfall 0.00 0 0 0.00 0 0      
Stream Flows
Gauging Station 01/02/2021 MTD
NTRT Nueces River at Three Rivers, Texas 67 132
NRTT Nueces River at Tilden, Texas 0 0
FRTT Frio River at Tilden, Texas 0 0
SMTT San Miguel Creek at Tilden, Texas 0 0
ARWT Atascosa River at Whitsett, Texas 5 11
CCR Release from Choke Canyon Reservoir 58 115
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 151 307
NCAT Nueces River at Calallen, Texas 6 6
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 9 18
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   231
Return Flow Credit Effective   500
Required Passthru Monthly Target 1,200   18
Reservoir Inflow 18
Estuary Inflows (NCAT + RBP) 6
Passthru Surplus / -Deficit 0
Report Generated 1/3/2021 at 9:09:54 AM