Daily Reservoir and Pass-Thru Status Report
March 28, 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%
03/28/2021 197.5 221,467 33.4% 85.8 117,754 45.9% 339,221 36.9% 43.0 151,919 94.3%
03/27/2021 197.5 221,467 33.4% 85.8 117,754 45.9% 339,221 36.9% 43.0 151,919 94.3%
02/28/2021 197.9 226,815 34.2% 86.2 123,267 48.1% 350,082 38.1% 43.5 156,467 97.1%
03/28/2020 202.3 291,453 44.0% 89.9 180,563 70.4% 472,016 51.4% 38.3 112,670 69.9%
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
February YTD Remaining February YTD Remaining
03/27/2021 130 2,019 1,664 1,664 29,776 1,230 4,500 7,500
COLORADO RIVER WATER SUPPLY (CRWT)
Date Daily
Intake
MTD YTD Daily Flow MTD Flow Date Time Gage Height
03/27/2021 0 1,379 2,949 967 27,512 03/28/2021 7:15 AM 8.25
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  03/27/2021 MTD YTD 03/27/2021 MTD YTD 03/27/2021 MTD YTD
Air Temp 91     89        
Evaporation 247 5,081 10,265 198 4,499 10,200 445 9,580 20,465
Rainfall 0.00 0.22 1.6 0.05 0.56 2.26      
Stream Flows
Gauging Station 03/27/2021 MTD
NTRT Nueces River at Three Rivers, Texas 56 1,564
NRTT Nueces River at Tilden, Texas 0 0
FRTT Frio River at Tilden, Texas 0 4
SMTT San Miguel Creek at Tilden, Texas 0 0
ARWT Atascosa River at Whitsett, Texas 1 75
CCR Release from Choke Canyon Reservoir 58 1,554
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 152 3,702
NCAT Nueces River at Calallen, Texas 0 15
RBP Rincon Bayou Pipeline 0 0
Reservoir InFlow
Computed as: NRTT+FRTT+SMTT+ARWT 1 44
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 1,200   1,200
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied   449
Return Flow Credit Effective   500
Required Passthru Monthly Target 1,200   44
Reservoir Inflow 44
Estuary Inflows (NCAT + RBP) 15
Passthru Surplus / -Deficit 0
Report Generated 3/28/2021 at 9:03:02 AM