Daily Reservoir and Pass-Thru Status Report
January 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%
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%
12/31/2020	198.4	233,606	35.2%	86.8	131,815	51.4%	365,421	39.8%	44.0	161,085	100.0%
12/01/2020	198.9	240,518	36.3%	87.2	137,687	53.7%	378,205	41.1%	43.8	159,229	98.8%
01/01/2020	202.8	299,436	45.2%	90.7	194,426	75.8%	493,862	53.7%	39.2	119,655	74.3%
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
				December	YTD	Remaining		December	YTD	Remaining
12/31/2020		101	3,197	2,559	27,600	3,840		0	4,500	7,500
COLORADO RIVER WATER SUPPLY (CRWT)
Date		Daily Intake	MTD	YTD	Daily Flow	MTD Flow	Date		Time		Gage Height
12/31/2020		33	978	14,502	9,588	38,072	01/01/2021		7:15 AM		14.20
WEATHER RELATED INFORMATION
	Choke Canyon Reservoir				Lake Corpus Christi				CCR/LCC Combined
	12/31/2020	MTD	YTD		12/31/2020	MTD	YTD		12/31/2020	MTD	YTD
Air Temp	45				48
Evaporation	128	2,939	78,074		85	3,300	69,721		213	6,239	147,795
Rainfall	0.18	0.55	24.14		0.10	0.93	31.9
Stream Flows
Gauging Station								12/31/2020		MTD
NTRT	Nueces River at Three Rivers, Texas							66		1,962
NRTT	Nueces River at Tilden, Texas							0		0
FRTT	Frio River at Tilden, Texas							1		3
SMTT	San Miguel Creek at Tilden, Texas							0		0
ARWT	Atascosa River at Whitsett, Texas							7		245
CCR	Release from Choke Canyon Reservoir							58		1,785
NRMT	Nueces River at Mathis, Texas (La Fruta Bridge)							166		4,254
NCAT	Nueces River at Calallen, Texas							0		231
RBP	Rincon Bayou Pipeline							0		0
Reservoir InFlow
Computed as:		(NTRT+FRTT+SMTT)-Release from Choke Canyon						9		199
ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru	Monthly Target			3,745					3,745
	Salinity Relief Credit			0	Effective
Credit / -Deficit From Previous Month					Date Deficit Satisfied				221
Return Flow Credit					Effective				500
Required Passthru	Monthly Target			3,745					199
	Reservoir Inflow			199
Estuary Inflows (NCAT + RBP)									231
Passthru Surplus / -Deficit									0
Report Generated			1/2/2021			at	10:38:15 AM