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Daily Reservoir System and Pass-Thru Status Report Prosposed Water Supply Index
August 22, 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%
08/22/2017 197.4 220,142 33.2% 89.9 180,563 70.4% 400,705 43.6% 41.4 137,841 85.6%
08/21/2017 197.5 221,467 33.4% 90.0 182,266 71.1% 403,733 43.9% 41.6 139,562 86.6%
07/22/2017 198.2 230,875 34.8% 91.0 199,764 77.9% 430,639 46.9% 42.5 147,442 91.5%
08/22/2016 199.2 263,398 39.7% 88.7 166,517 65.0% 429,915 46.8% 44.2 163,121 101.3%
LAKE TEXANA WATER SUPPLY* COLORADO  WATER SUPPLY
Date Daily Intake MTD Non-Interruptible Interruptible Daily Intake MTD YTD
July YTD Remaining July YTD Remaining
08/21/2017 134 2,559 0 21,551 20,289 0 4,500 7,500 0 229 412
WEATHER RELATED INFORMATION
  Choke Canyon Reservoir Lake Corpus Christi CCR/LCC Combined
  08/21/2017 MTD YTD 08/21/2017 MTD YTD MTD YTD
Air Temp 97     96        
Evaporation 277 6,621 57,978 386 7,528 66,623 14,149 124,601
Rainfall 0.00 0.19 12.27 0.00 0.88 9.96      
Stream Flows
Gauging Station 08/21/2017 MTD
NTRT Nueces River at Three Rivers, Texas 49 1,343
NRTT Nueces River at Tilden, Texas 0 373
FRTT Frio River at Tilden, Texas 0 0
SMTT San Miguel Creek at Tilden, Texas 0 1,143
ARWT Atascosa River at Whitsett, Texas 1 180
CCR Release from Choke Canyon Reservoir 58 1,209
NRMT Nueces River at Mathis, Texas (La Fruta Bridge) 318 4,756
NCAT Nueces River at Calallen, Texas 0 1
RBP Rincon Bayou Pipeline 109 190
CRWT Colorado River at Wharton, Texas 304 22,319
Reservoir InFlow
Computed as: NRTT+FRTT+SMTT+ARWT 1 1,368
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru Monthly Target 5,000   5,000
Salinity Relief Credit 0 Effective  
Credit / -Deficit From Previous Month Date Deficit Satisfied   170
Return Flow Credit Effective 08/01/2017 500
Required Passthru Monthly Target 5,000 0 1,368
Reservoir Inflow 1,368
Estuary Inflows (NCAT + RBP) 190
Passthru Surplus / -Deficit -507
* Non-Interruptible YTD  includes  current month's combined take.   Interruptible amounts are updated monthly, usually the first working day of the month.
Report Generated 8/22/2017 at 8:57:05 AM

Updated: 5/23/16 1:40:51 pm. ©2017 (NRA) ** All rights reserved.