Daily Reservoir and Pass-Thru Status Report
June 24, 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%
06/24/2021 204.4 325,645 49.1% 91.7 212,485 82.9% 538,130 58.5% 44.0 161,085 100.0%
06/23/2021 204.3 323,977 48.9% 91.7 212,485 82.9% 536,462 58.4% 44.0 161,085 100.0%
05/24/2021 201.7 282,012 42.5% 88.4 156,028 60.9% 438,040 47.7% 44.0 161,085 100.0%
06/24/2020 201.4 277,357 41.8% 89.4 172,173 67.2% 449,530 48.9% 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
06/23/2021 117 3,328 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
06/23/2021 67 645 5,582 2,045 311,685 06/24/2021 7:15 AM 9.99
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/23/2021 MTD YTD 06/23/2021 MTD YTD 06/23/2021 MTD YTD
Air Temp 89     89        
Evaporation 272 6,585 30,419 321 5,809 27,425 593 12,394 57,844
Rainfall 0.00 2.13 17.02 0.00 2.77 17.36      
Stream Flows
Gauging Station 06/23/2021 MTD
NTRT Nueces River at Three Rivers, Texas 216 62,250
NRTT Nueces River at Tilden, Texas 27 21,159
FRTT Frio River at Tilden, Texas 10 34,957
SMTT San Miguel Creek at Tilden, Texas 4 7,651
ARWT Atascosa River at Whitsett, Texas 45 41,286
CCR Release from Choke Canyon Reservoir 58 1,112
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 699 11,874
NCAT Nueces River at Calallen, Texas 357 6,819
RBP Rincon Bayou Pipeline 229 4,428
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 173 103,746
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 103,746
Estuary Inflows (NCAT + RBP) 11,247
Passthru Surplus / -Deficit -10,634
Report Generated 6/24/2021 at 8:04:12 AM