Daily Reservoir and Pass-Thru Status Report
May 27, 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%
05/27/2021 201.7 282,012 42.5% 88.5 157,605 61.5% 439,617 47.8% 43.9 160,156 99.4%
05/26/2021 201.7 282,012 42.5% 88.5 157,605 61.5% 439,617 47.8% 43.9 160,156 99.4%
04/27/2021 197.0 214,890 32.4% 85.2 109,768 42.8% 324,658 35.3% 42.4 146,555 91.0%
05/27/2020 201.9 285,141 43.0% 89.5 173,834 67.8% 458,975 49.9% 43.9 160,156 99.4%
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
April YTD Remaining April YTD Remaining
05/26/2021 137 3,000 2,289 6,497 24,943 0 4,500 7,500
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
05/26/2021 0 494 4,937 46,251 323,484 05/27/2021 7:15 AM 28.97
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  05/26/2021 MTD YTD 05/26/2021 MTD YTD 05/26/2021 MTD YTD
Air Temp 88     89        
Evaporation 245 5,968 22,597 249 5,144 20,668 494 11,112 43,265
Rainfall 0.00 9.52 12.47 0.00 8.45 12.34      
Stream Flows
Gauging Station 05/26/2021 MTD
NTRT Nueces River at Three Rivers, Texas 437 33,729
NRTT Nueces River at Tilden, Texas 4 2,439
FRTT Frio River at Tilden, Texas 104 39,812
SMTT San Miguel Creek at Tilden, Texas 15 11,537
ARWT Atascosa River at Whitsett, Texas 102 21,384
CCR Release from Choke Canyon Reservoir 58 1,368
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 145 4,750
NCAT Nueces River at Calallen, Texas 10 9,084
RBP Rincon Bayou Pipeline 81 1,370
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 498 83,711
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 10,551   10,551
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied   85
Return Flow Credit Effective   500
Required Passthru Monthly Target 10,551   10,551
Reservoir Inflow 83,711
Estuary Inflows (NCAT + RBP) 10,454
Passthru Surplus / -Deficit 488
Report Generated 5/27/2021 at 9:30:20 AM