Daily Reservoir and Pass-Thru Status Report
May 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%
05/02/2021	197.1	216,196	32.6%	85.3	111,076	43.3%	327,272	35.6%	43.9	160,156	99.4%
05/01/2021	197.1	216,196	32.6%	85.2	109,768	42.8%	325,964	35.5%	43.0	151,919	94.3%
04/02/2021	197.4	220,142	33.2%	85.7	116,400	45.4%	336,542	36.6%	42.8	150,120	93.2%
05/02/2020	202.1	288,289	43.5%	89.5	173,834	67.8%	462,123	50.3%	41.0	134,434	83.5%

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
Date		Daily Intake	MTD	April	YTD	Remaining		April	YTD	Remaining
05/01/2021		126	126	0	4,208	27,232		0	4,500	7,500

COLORADO RIVER WATER SUPPLY (CRWT)
Date		Daily Intake	MTD	YTD	Daily Flow	MTD Flow	Date		Time		Gage Height
05/01/2021		4	4	4,447	10,759	10,759	05/02/2021		7:15 AM		12.25

WEATHER RELATED INFORMATION
	Choke Canyon Reservoir				Lake Corpus Christi				CCR/LCC Combined
	05/01/2021	MTD	YTD		05/01/2021	MTD	YTD		05/01/2021	MTD	YTD
Air Temp	76				76
Evaporation	84	84	16,713		15	15	15,539		99	99	32,252
Rainfall	0.36	0.36	3.31		0.40	0.4	4.29

Stream Flows
Gauging Station								05/01/2021		MTD
NTRT	Nueces River at Three Rivers, Texas							67		67
NRTT	Nueces River at Tilden, Texas							0		0
FRTT	Frio River at Tilden, Texas							1		1
SMTT	San Miguel Creek at Tilden, Texas							226		226
ARWT	Atascosa River at Whitsett, Texas							173		173
CCR	Release from Choke Canyon Reservoir							58		58
NRMT	Nueces River at Mathis, Texas (La Fruta Bridge)							118		118
NCAT	Nueces River at Calallen, Texas							11		11
RBP	Rincon Bayou Pipeline							0		0
Reservoir InFlow
Computed as:		(NTRT+FRTT+SMTT)-Release from Choke Canyon						237		237

ESTUARY INFLOWS AND PASSTHRU REQUIREMENTS
Target Passthru	Monthly Target			1,200					1,200
Target Passthru	Salinity Relief Credit			0	Effective				1,200
Credit / -Deficit From Previous Month					Date Deficit Satisfied				85
Return Flow Credit					Effective				500
Required Passthru	Monthly Target			1,200					237
Required Passthru	Reservoir Inflow			237					237
Estuary Inflows (NCAT + RBP)									11
Passthru Surplus / -Deficit									0



Report Generated			5/2/2021			at	8:57:00 AM