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Prosposed Water Supply Index
December 14, 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%
12/14/2017 196.2 204,609 30.9% 93.5 246,539 96.2% 451,148 49.1% 42.2 144,790 89.9%
12/13/2017 196.2 204,609 30.9% 93.5 246,539 96.2% 451,148 49.1% 42.3 145,671 90.4%
11/14/2017 196.6 209,713 31.6% 93.9 254,368 99.2% 464,081 50.5% 42.9 151,018 93.8%
12/14/2016 201.0 291,208 43.9% 93.3 244,394 95.3% 535,602 58.3% 44.1 162,101 100.6%
LAKE TEXANA WATER SUPPLY* COLORADO  WATER SUPPLY
Date Daily Intake MTD Non-Interruptible Interruptible Daily Intake MTD YTD
November YTD Remaining November YTD Remaining
12/13/2017 130 1,357 3,819 39,501 2,339 0 4,500 7,500 0 335 1,447
+
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  12/13/2017 MTD YTD 12/13/2017 MTD YTD MTD YTD
Air Temp 66     65        
Evaporation 52 968 76,602 125 1,614 91,456 2,582 168,058
Rainfall 0.00 1.54 20.17 0.00 1.57 19.54      
Stream Flows
Gauging Station 12/13/2017 MTD
NTRT Nueces River at Three Rivers, Texas 80 973
NRTT Nueces River at Tilden, Texas 1 26
FRTT Frio River at Tilden, Texas 0 2
SMTT San Miguel Creek at Tilden, Texas 0 0
ARWT Atascosa River at Whitsett, Texas 14 135
CCR Release from Choke Canyon Reservoir 58 748
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 169 1,800
NCAT Nueces River at Calallen, Texas 0 268
RBP Rincon Bayou Pipeline 0 0
CRWT Colorado River at Wharton, Texas 2,104 22,506
Reservoir InFlow
Computed as: (NTRT+FRTT+SMTT)-Release from Choke Canyon 22 226
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 4,500   3,375
Salinity Relief Credit 1,125 Effective 12/11/2017
Credit / -Deficit From Previous Month Date Deficit Satisfied   0
Return Flow Credit Effective 12/01/2017 500
Required Passthru Monthly Target 3,375 0 226
Reservoir Inflow 226
Estuary Inflows (NCAT + RBP) 268
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 12/14/2017 at 8:16:11 AM

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