Daily Reservoir and Pass-Thru Status Report
February 1, 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%
02/01/2021	198.2	230,875	34.8%	86.6	128,931	50.3%	359,806	39.1%	43.8	159,229	98.8%
01/31/2021	198.2	230,875	34.8%	86.6	128,931	50.3%	359,806	39.1%	43.8	159,229	98.8%
01/01/2021	198.4	233,606	35.2%	86.8	131,815	51.4%	365,421	39.8%	44.0	161,085	100.0%
02/01/2020	202.6	296,231	44.7%	90.4	189,164	73.8%	485,395	52.8%	38.9	117,295	72.8%
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
				January	YTD	Remaining		January	YTD	Remaining
01/31/2021		132	3,270	0	0	0		0	0	0
COLORADO RIVER WATER SUPPLY (CRWT)
Date		Daily Intake	MTD	YTD	Daily Flow	MTD Flow	Date		Time		Gage Height
01/31/2021		0	863	863	1,074	70,483	02/01/2021		7:15 AM		8.32
WEATHER RELATED INFORMATION
	Choke Canyon Reservoir				Lake Corpus Christi				CCR/LCC Combined
	01/31/2021	MTD	YTD		01/31/2021	MTD	YTD		01/31/2021	MTD	YTD
Air Temp	74				74
Evaporation	222	2,782	2,782		225	3,092	3,092		447	5,874	5,874
Rainfall	0.00	1	1		0.00	0.85	0.85
Stream Flows
Gauging Station								01/31/2021		MTD
NTRT	Nueces River at Three Rivers, Texas							62		2,199
NRTT	Nueces River at Tilden, Texas							0		0
FRTT	Frio River at Tilden, Texas							0		7
SMTT	San Miguel Creek at Tilden, Texas							0		0
ARWT	Atascosa River at Whitsett, Texas							1		161
CCR	Release from Choke Canyon Reservoir							58		1,785
NRMT	Nueces River at Mathis, Texas (La Fruta Bridge)							108		3,722
NCAT	Nueces River at Calallen, Texas							2		78
RBP	Rincon Bayou Pipeline							0		0
Reservoir InFlow
Computed as:		(NTRT+FRTT+SMTT)-Release from Choke Canyon						5		421
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru	Monthly Target			1,200					1,200
	Salinity Relief Credit			0	Effective
Credit / -Deficit From Previous Month					Date Deficit Satisfied				231
Return Flow Credit					Effective				500
Required Passthru	Monthly Target			1,200					421
	Reservoir Inflow			421
Estuary Inflows (NCAT + RBP)									78
Passthru Surplus / -Deficit									0
Report Generated			2/1/2021			at	8:51:42 AM