Daily Reservoir and Pass-Thru Status Report
June 7, 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%
06/07/2021 204.2 322,313 48.6% 90.4 189,164 73.8% 511,477 55.6% 43.9 160,156 99.4%
06/06/2021 203.7 314,054 47.4% 89.9 180,563 70.4% 494,617 53.8% 44.0 161,085 100.0%
05/07/2021 197.3 218,822 33.0% 85.7 116,400 45.4% 335,222 36.5% 44.0 161,085 100.0%
06/07/2020 201.8 283,575 42.8% 90.0 182,266 71.1% 465,841 50.7% 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
May YTD Remaining May YTD Remaining
06/06/2021 139 826 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
06/06/2021 0 0 4,937 43,869 159,534 06/07/2021 7:15 AM 26.51
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/06/2021 MTD YTD 06/06/2021 MTD YTD 06/06/2021 MTD YTD
Air Temp 89     89        
Evaporation 319 1,196 25,030 213 1,156 22,772 532 2,352 47,802
Rainfall 0.00 1.02 15.91 0.00 2.3 16.89      
Stream Flows
Gauging Station 06/06/2021 MTD
NTRT Nueces River at Three Rivers, Texas 10,937 27,202
NRTT Nueces River at Tilden, Texas 2,243 11,690
FRTT Frio River at Tilden, Texas 5,995 28,105
SMTT San Miguel Creek at Tilden, Texas 195 7,359
ARWT Atascosa River at Whitsett, Texas 10,223 35,005
CCR Release from Choke Canyon Reservoir 0 191
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 216 2,122
NCAT Nueces River at Calallen, Texas 381 3,325
RBP Rincon Bayou Pipeline 201 526
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 17,127 62,476
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 62,476
Estuary Inflows (NCAT + RBP) 3,850
Passthru Surplus / -Deficit -18,031
Report Generated 6/7/2021 at 9:18:17 AM