Daily Reservoir and Pass-Thru Status Report
June 25, 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%
06/25/2021 204.5 327,318 49.4% 91.6 210,649 82.2% 537,967 58.5% 43.9 160,156 99.4%
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%
05/25/2021 201.7 282,012 42.5% 88.5 157,605 61.5% 439,617 47.8% 44.0 161,085 100.0%
06/25/2020 201.4 277,357 41.8% 89.3 170,521 66.5% 447,878 48.7% 43.6 157,385 97.7%
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
06/24/2021 116 3,444 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
06/24/2021 68 713 5,649 3,414 315,099 06/25/2021 7:15 AM 10.34
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/24/2021 MTD YTD 06/24/2021 MTD YTD 06/24/2021 MTD YTD
Air Temp 91     91        
Evaporation 291 6,876 30,710 352 6,161 27,777 643 13,037 58,487
Rainfall 0.00 2.13 17.02 0.00 2.77 17.36      
Stream Flows
Gauging Station 06/24/2021 MTD
NTRT Nueces River at Three Rivers, Texas 204 62,454
NRTT Nueces River at Tilden, Texas 20 21,179
FRTT Frio River at Tilden, Texas 9 34,966
SMTT San Miguel Creek at Tilden, Texas 30 7,681
ARWT Atascosa River at Whitsett, Texas 42 41,328
CCR Release from Choke Canyon Reservoir 58 1,169
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 697 12,571
NCAT Nueces River at Calallen, Texas 339 7,159
RBP Rincon Bayou Pipeline 228 4,656
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 186 103,932
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 103,932
Estuary Inflows (NCAT + RBP) 11,814
Passthru Surplus / -Deficit -10,067
Report Generated 6/25/2021 at 7:51:05 AM