Daily Reservoir and Pass-Thru Status Report
June 17, 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%
06/17/2021 204.5 327,318 49.4% 92.0 218,027 85.1% 545,345 59.3% 44.0 161,085 100.0%
06/16/2021 204.5 327,318 49.4% 92.0 218,027 85.1% 545,345 59.3% 44.0 161,085 100.0%
05/17/2021 198.7 237,738 35.9% 86.2 123,267 48.1% 361,005 39.3% 44.1 161,085 100.0%
06/17/2020 201.6 280,455 42.3% 89.6 175,504 68.5% 455,959 49.6% 43.4 155,551 96.6%
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
May YTD Remaining May YTD Remaining
06/16/2021 121 2,491 0 6,497 24,943 3,684 8,184 3,816
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
06/16/2021 68 173 5,109 2,521 297,512 06/17/2021 7:15 AM 10.14
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/16/2021 MTD YTD 06/16/2021 MTD YTD 06/16/2021 MTD YTD
Air Temp 92     92        
Evaporation 341 4,504 28,338 400 3,974 25,590 741 8,478 53,928
Rainfall 0.00 1.61 16.5 0.00 2.49 17.08      
Stream Flows
Gauging Station 06/16/2021 MTD
NTRT Nueces River at Three Rivers, Texas 592 60,185
NRTT Nueces River at Tilden, Texas 167 20,680
FRTT Frio River at Tilden, Texas 43 34,825
SMTT San Miguel Creek at Tilden, Texas 8 7,615
ARWT Atascosa River at Whitsett, Texas 74 40,889
CCR Release from Choke Canyon Reservoir 58 709
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 641 6,971
NCAT Nueces River at Calallen, Texas 242 4,540
RBP Rincon Bayou Pipeline 235 2,807
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 584 101,916
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 23,000   23,000
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied   619
Return Flow Credit Effective   500
Required Passthru Monthly Target 23,000   23,000
Reservoir Inflow 101,916
Estuary Inflows (NCAT + RBP) 7,347
Passthru Surplus / -Deficit -14,534
Report Generated 6/17/2021 at 1:24:35 PM