Daily Reservoir and Pass-Thru Status Report
June 11, 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%
06/11/2021 204.5 327,318 49.4% 91.9 216,174 84.3% 543,492 59.1% 44.0 161,085 100.0%
06/10/2021 204.5 327,318 49.4% 91.8 214,326 83.6% 541,644 58.9% 44.0 161,085 100.0%
05/11/2021 197.4 220,142 33.2% 85.7 116,400 45.4% 336,542 36.6% 44.0 161,085 100.0%
06/11/2020 201.8 283,575 42.8% 89.9 180,563 70.4% 464,138 50.5% 43.7 158,306 98.3%
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
06/10/2021 189 1,526 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
06/10/2021 0 0 4,937 9,151 272,481 06/11/2021 7:15 AM 15.01
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  06/10/2021 MTD YTD 06/10/2021 MTD YTD 06/10/2021 MTD YTD
Air Temp 90     90        
Evaporation 332 2,386 26,220 302 2,246 23,862 634 4,632 50,082
Rainfall 0.00 1.02 15.91 0.00 2.3 16.89      
Stream Flows
Gauging Station 06/10/2021 MTD
NTRT Nueces River at Three Rivers, Texas 1,632 53,309
NRTT Nueces River at Tilden, Texas 911 16,684
FRTT Frio River at Tilden, Texas 443 34,207
SMTT San Miguel Creek at Tilden, Texas 23 7,551
ARWT Atascosa River at Whitsett, Texas 184 40,300
CCR Release from Choke Canyon Reservoir 58 363
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 435 3,813
NCAT Nueces River at Calallen, Texas 100 3,705
RBP Rincon Bayou Pipeline 238 1,422
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 2,039 94,704
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 94,704
Estuary Inflows (NCAT + RBP) 5,127
Passthru Surplus / -Deficit -16,754
Report Generated 6/11/2021 at 10:17:35 AM