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Prosposed Water Supply Index
November 23, 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%
11/23/2017 196.4 207,152 31.3% 93.7 250,442 97.7% 457,594 49.8% 42.7 149,224 92.6%
11/22/2017 196.4 207,152 31.3% 93.8 252,402 98.5% 459,554 50.0% 42.7 149,224 92.6%
10/23/2017 197.0 214,890 32.4% 94.0 256,339 100.0% 471,229 51.3% 43.6 157,385 97.7%
11/23/2016 201.1 292,634 44.1% 93.0 238,657 93.1% 531,291 57.8% 42.4 146,555 91.0%
LAKE TEXANA WATER SUPPLY* COLORADO  WATER SUPPLY
Date Daily Intake MTD Non-Interruptible Interruptible Daily Intake MTD YTD
October YTD Remaining October YTD Remaining
11/22/2017 132 2,769 3,851 37,094 4,746 0 4,500 7,500 0 154 1,113
+
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  11/22/2017 MTD YTD 11/22/2017 MTD YTD MTD YTD
Air Temp 69     68        
Evaporation 141 2,767 74,773 182 3,902 88,387 6,669 163,160
Rainfall 0.00 0.16 18.63 0.00 0.73 17.97      
Stream Flows
Gauging Station 11/22/2017 MTD
NTRT Nueces River at Three Rivers, Texas 68 1,715
NRTT Nueces River at Tilden, Texas 3 189
FRTT Frio River at Tilden, Texas 0 4
SMTT San Miguel Creek at Tilden, Texas 0 0
ARWT Atascosa River at Whitsett, Texas 8 104
CCR Release from Choke Canyon Reservoir 58 1,266
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 140 2,424
NCAT Nueces River at Calallen, Texas 28 956
RBP Rincon Bayou Pipeline 0 0
CRWT Colorado River at Wharton, Texas 1,820 45,848
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 11 453
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 4,000   4,000
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied   2,000
Return Flow Credit Effective 11/01/2017 500
Required Passthru Monthly Target 4,000 0 453
Reservoir Inflow 453
Estuary Inflows (NCAT + RBP) 956
Passthru Surplus / -Deficit 0
* Non-Interruptible YTD  includes  current month's combined take.   Interruptible amounts are updated monthly, usually the first working day of the month.
Report Generated 11/23/2017 at 8:59:05 AM

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