Daily Reservoir and Pass-Thru Status Report
October 2, 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%
10/02/2021	203.6	312,414	47.1%	92.3	223,623	87.2%	536,037	58.3%	43.0	151,919	94.3%
10/01/2021	203.6	312,414	47.1%	92.2	221,752	86.5%	534,166	58.1%	42.9	151,018	93.8%
09/02/2021	204.1	320,653	48.4%	92.7	231,167	90.2%	551,820	60.0%	43.6	157,385	97.7%
10/02/2020	199.6	250,439	37.8%	88.0	149,794	58.4%	400,233	43.5%	44.0	161,085	100.0%
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
				September	YTD	Remaining		September	YTD	Remaining
10/01/2021		144	144	0	12,844	18,596		0	12,000	0
COLORADO RIVER WATER SUPPLY (CRWT)
Date		Daily Intake	MTD	YTD	Daily Flow	MTD Flow	Date		Time		Gage Height
10/01/2021		0	0	9,327	2,104	2,104	10/02/2021		7:15 AM		9.01
WEATHER RELATED INFORMATION
	Choke Canyon Reservoir				Lake Corpus Christi				CCR/LCC Combined
	10/01/2021	MTD	YTD		10/01/2021	MTD	YTD		10/01/2021	MTD	YTD
Air Temp	80				81
Evaporation	105	105	61,492		120	120	53,972		225	225	115,464
Rainfall	0.02	0.02	26.94		1.60	1.6	35.6
Stream Flows
Gauging Station								10/01/2021		MTD
NTRT	Nueces River at Three Rivers, Texas							144		144
NRTT	Nueces River at Tilden, Texas							0		0
FRTT	Frio River at Tilden, Texas							0		0
SMTT	San Miguel Creek at Tilden, Texas							0		0
ARWT	Atascosa River at Whitsett, Texas							83		83
CCR	Release from Choke Canyon Reservoir							58		58
NRMT	Nueces River at Mathis, Texas (La Fruta Bridge)							873		873
NCAT	Nueces River at Calallen, Texas							526		526
RBP	Rincon Bayou Pipeline							0		0
Reservoir InFlow
Computed as:		(NTRT+FRTT+SMTT)-Release from Choke Canyon						86		86
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		10/01/2021		164
Return Flow Credit					Effective				500
Required Passthru	Monthly Target			9,000					86
	Reservoir Inflow			86
Estuary Inflows (NCAT + RBP)									526
Passthru Surplus / -Deficit									0
Report Generated			10/2/2021			at	10:14:38 AM