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Prosposed Water Supply Index
October 17, 2017 Value Stage # Stage Name
Under Review
Reservoir Supply (AcFt); Stream Flow (AcFt); Evaporation (AcFt); Elevation (Ft); Rainfall (Inches); Temperature (°F)
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%
10/17/2017 197.1 216,196 32.6% 94.0 256,339 100.0% 472,535 51.4% 43.8 159,229 98.8%
10/16/2017 197.1 216,196 32.6% 94.0 256,339 100.0% 472,535 51.4% 43.6 157,385 97.7%
09/17/2017 197.1 216,196 32.6% 89.5 173,834 67.8% 390,030 42.4% 43.9 160,156 99.4%
10/17/2016 201.6 300,321 45.3% 92.7 233,669 91.2% 533,990 58.1% 43.2 153,730 95.4%
LAKE TEXANA WATER SUPPLY* COLORADO  WATER SUPPLY
Date Daily Intake MTD Non-Interruptible Interruptible Daily Intake MTD YTD
September YTD Remaining September YTD Remaining
10/16/2017 132 1,854 3,648 32,327 9,513 0 4,500 7,500 0 265 957
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  10/16/2017 MTD YTD 10/16/2017 MTD YTD MTD YTD
Air Temp 84     86        
Evaporation 221 2,667 69,635 426 4,330 80,824 6,997 150,459
Rainfall 0.00 0.24 18.47 0.00 1.79 16.44      
Stream Flows
Gauging Station 10/16/2017 MTD
NTRT Nueces River at Three Rivers, Texas 2,263 147,188
NRTT Nueces River at Tilden, Texas 439 151,174
FRTT Frio River at Tilden, Texas 4 6,176
SMTT San Miguel Creek at Tilden, Texas 0 82
ARWT Atascosa River at Whitsett, Texas 5 477
CCR Release from Choke Canyon Reservoir 58 748
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 5,895 40,893
NCAT Nueces River at Calallen, Texas 4,784 20,214
RBP Rincon Bayou Pipeline 0 1,833
CRWT Colorado River at Wharton, Texas 2,422 51,273
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 2,209 152,698
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 9,000   9,000
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied 10/08/2017 -1,941
Return Flow Credit Effective 10/08/2017 500
Required Passthru Monthly Target 9,000 0 9,000
Reservoir Inflow 152,698
Estuary Inflows (NCAT + RBP) 22,047
Passthru Surplus / -Deficit 11,606
* Non-Interruptible YTD  includes  current month's combined take.   Interruptible amounts are updated monthly, usually the first working day of the month.
Report Generated 10/17/2017 at 8:15:38 AM

Updated: 9/14/17 10:42:23 am. ©2017 (NRA) ** All rights reserved.