Daily Reservoir and Pass-Thru Status Report
July 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%
07/02/2021 204.2 322,313 48.6% 91.4 206,995 80.8% 529,308 57.6% 43.7 158,306 98.3%
07/01/2021 204.2 322,313 48.6% 91.4 206,995 80.8% 529,308 57.6% 43.7 158,306 98.3%
06/02/2021 201.9 285,141 43.0% 88.6 159,190 62.1% 444,331 48.3% 44.0 161,085 100.0%
07/02/2020 201.3 275,815 41.6% 89.4 172,173 67.2% 447,988 48.7% 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
June YTD Remaining June YTD Remaining
07/01/2021 112 112 348 6,844 24,596 3,816 12,000 0
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
07/01/2021 68 68 6,093 1,763 1,763 07/02/2021 7:15 AM 9.26
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  07/01/2021 MTD YTD 07/01/2021 MTD YTD 07/01/2021 MTD YTD
Air Temp 90     87        
Evaporation 252 252 32,484 170 170 29,626 422 422 62,110
Rainfall 0.42 0.42 17.54 0.04 0.04 19.97      
Stream Flows
Gauging Station 07/01/2021 MTD
NTRT Nueces River at Three Rivers, Texas 193 193
NRTT Nueces River at Tilden, Texas 61 61
FRTT Frio River at Tilden, Texas 10 10
SMTT San Miguel Creek at Tilden, Texas 7 7
ARWT Atascosa River at Whitsett, Texas 65 65
CCR Release from Choke Canyon Reservoir 58 58
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 713 713
NCAT Nueces River at Calallen, Texas 453 453
RBP Rincon Bayou Pipeline 229 229
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 153 153
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   -6,416
Return Flow Credit Effective   0
Required Passthru Monthly Target 4,500   153
Reservoir Inflow 153
Estuary Inflows (NCAT + RBP) 682
Passthru Surplus / -Deficit -5,887
Report Generated 7/2/2021 at 8:31:57 AM