Daily Reservoir and Pass-Thru Status Report
December 1, 2020
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%
12/01/2020 198.9 240,518 36.3% 87.2 137,687 53.7% 378,205 41.1% 43.8 159,229 98.8%
11/30/2020 198.8 239,125 36.1% 87.3 139,175 54.3% 378,300 41.2% 43.6 157,385 97.7%
11/01/2020 199.0 241,915 36.5% 87.5 142,172 55.5% 384,087 41.8% 43.2 153,730 95.4%
12/01/2019 203.1 304,274 45.9% 90.9 197,976 77.2% 502,250 54.6% 40.0 126,098 78.3%
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
11/30/2020 132 2,559 0 25,042 6,398 0 4,500 7,500
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
11/30/2020 0 1,313 13,859 1,618 26,581 12/01/2020 7:15 AM 9.23
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  11/30/2020 MTD YTD 11/30/2020 MTD YTD 11/30/2020 MTD YTD
Air Temp 56     56        
Evaporation 138 4,041 75,135 147 3,793 66,421 285 7,834 141,556
Rainfall 0.00 2.98 23.59 0.00 1.32 30.97      
Stream Flows
Gauging Station 11/30/2020 MTD
NTRT Nueces River at Three Rivers, Texas 59 1,704
NRTT Nueces River at Tilden, Texas 0 0
FRTT Frio River at Tilden, Texas 0 2
SMTT San Miguel Creek at Tilden, Texas 0 0
ARWT Atascosa River at Whitsett, Texas 20 28
CCR Release from Choke Canyon Reservoir 58 1,727
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 171 4,978
NCAT Nueces River at Calallen, Texas 27 221
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 2 36
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 4,000   4,000
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied   756
Return Flow Credit Effective   500
Required Passthru Monthly Target 4,000   36
Reservoir Inflow 36
Estuary Inflows (NCAT + RBP) 221
Passthru Surplus / -Deficit 0
Report Generated 12/1/2020 at 8:41:18 AM