Daily Reservoir and Pass-Thru Status Report
October 31, 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%
10/31/2020 199.1 243,319 36.7% 87.5 142,172 55.5% 385,491 41.9% 43.3 154,639 96.0%
10/30/2020 199.1 243,319 36.7% 87.6 143,682 56.1% 387,001 42.1% 43.3 154,639 96.0%
10/01/2020 199.7 251,884 38.0% 88.0 149,794 58.4% 401,678 43.7% 44.0 161,085 100.0%
10/31/2019 203.5 310,778 46.9% 91.4 206,995 80.8% 517,773 56.3% 39.5 122,045 75.8%
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
October YTD Remaining October YTD Remaining
10/30/2020 63 2,525 0 16,557 19,883 0 4,500 7,500
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
10/30/2020 68 1,463 11,166 951 28,135 10/31/2020 7:15 AM 8.23
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  10/30/2020 MTD YTD 10/30/2020 MTD YTD 10/30/2020 MTD YTD
Air Temp 69     70        
Evaporation 123 5,876 70,939 140 5,058 62,532 263 10,934 133,471
Rainfall 0.00 0.29 20.61 0.00 2.2 29.65      
Stream Flows
Gauging Station 10/30/2020 MTD
NTRT Nueces River at Three Rivers, Texas 62 1,843
NRTT Nueces River at Tilden, Texas 0 134
FRTT Frio River at Tilden, Texas 0 0
SMTT San Miguel Creek at Tilden, Texas 0 0
ARWT Atascosa River at Whitsett, Texas 5 101
CCR Release from Choke Canyon Reservoir 58 1,727
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 160 5,325
NCAT Nueces River at Calallen, Texas 1 836
RBP Rincon Bayou Pipeline 0 288
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 4 278
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 9,000   9,000
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied 10/04/2020 -590
Return Flow Credit Effective   500
Required Passthru Monthly Target 9,000   278
Reservoir Inflow 278
Estuary Inflows (NCAT + RBP) 1,125
Passthru Surplus / -Deficit 756
Report Generated 10/31/2020 at 9:15:11 AM