Daily Reservoir and Pass-Thru Status Report
December 2, 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%
12/02/2021 202.5 294,634 44.5% 91.5 208,819 81.5% 503,453 54.8% 43.9 160,156 99.4%
12/01/2021 202.5 294,634 44.5% 91.6 210,649 82.2% 505,283 55.0% 43.9 160,156 99.4%
11/02/2021 202.9 301,045 45.4% 91.9 216,174 84.3% 517,219 56.3% 43.6 157,385 97.7%
12/02/2020 198.8 239,125 36.1% 87.1 136,207 53.1% 375,332 40.8% 44.0 161,085 100.0%
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
November YTD Remaining November YTD Remaining
12/01/2021 130 130 0 20,603 10,837 0 12,000 0
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
12/01/2021 0 0 9,327 1,735 1,735 12/02/2021 7:15 AM 8.72
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  12/01/2021 MTD YTD 12/01/2021 MTD YTD 12/01/2021 MTD YTD
Air Temp 78     79        
Evaporation 111 111 72,767 85 85 65,367 196 196 138,134
Rainfall 0.00 0 28.35 0.00 0 38.19      
Stream Flows
Gauging Station 12/01/2021 MTD
NTRT Nueces River at Three Rivers, Texas 73 73
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 4 4
CCR Release from Choke Canyon Reservoir 58 58
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 157 157
NCAT Nueces River at Calallen, Texas 0 0
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 16 16
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 4,500   4,500
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied 12/01/2021 1,974
Return Flow Credit Effective   500
Required Passthru Monthly Target 4,500   16
Reservoir Inflow 16
Estuary Inflows (NCAT + RBP) 0
Passthru Surplus / -Deficit 0
Report Generated 12/2/2021 at 9:09:37 AM