How many wastewater treatment plants are there in Texas?

Klarifi tracks 1,220 publicly owned wastewater treatment plants in Texas with a combined average flow of 2,272 million gallons per day, serving about 17,094,816 residents. 334 of them treat more than 1 MGD and 37 more than 10 MGD.

What is the largest wastewater treatment plant in Texas?

Village Creek Reclamation Facility in Arlington is the largest plant in Texas by average flow, treating about 142 MGD.

What treatment technologies are common in Texas?

372 of Texas's plants use lagoon systems and 67 have biogas or anaerobic digestion infrastructure, based on Klarifi's aerial imagery review.

How many NPDES permits in Texas are up for renewal?

156 permits held by Texas plants expire in 2026 and 244 in 2027. Renewals typically bring new limits and trigger upgrade projects.

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Wastewater Treatment Plants in Texas

Name: Wastewater treatment plants in Texas
Creator: Klarifi
License: https://klarifi.io/terms-of-service

1220 facilities · 2,272 MGD combined flow

Klarifi tracks 1,220 publicly owned wastewater treatment plants in Texas with a combined average flow of 2,272 MGD, serving about 17,094,816 residents. 334 plants treat more than 1 MGD and 37 more than 10 MGD; 372 use lagoon systems and 67 have digesters or biogas infrastructure. The largest is Village Creek Reclamation Facility in Arlington at 142 MGD. 156 NPDES permits expire this year and 244 next year.

Every plant below links to a profile with average and design flow, treatment technology, the NPDES permit and its expiry, a three-year compliance snapshot and the capital projects planned in its city. Showing facilities 1–200 of 1220 by average flow — browse the rest with the page links below.

800 plant locations in Texas; dot size follows average flow.

NPDES permits and renewals in Texas

Every plant discharges under an NPDES permit that is renewed every five years, usually with tighter limits. The renewal year is the year a plant budgets for upgrades.

All NPDES permits in Texas →156 permits expiring in 2026 →244 permits expiring in 2027 →219 permits expiring in 2028 →Find plants near you on the map →

Largest wastewater treatment plants in Texas

The 25 largest publicly owned wastewater treatment plants in Texas by average flow, with NPDES permit, expiry, treatment technology and three-year violation count. Source: EPA ICIS-NPDES via Klarifi.
Facility	City	Avg flow (MGD)	Design (MGD)	NPDES permit	Expires	Technology	Violations (3y)
Village Creek Reclamation Facility	Arlington	142	166	TX0047295	Jan 2029	Clarifiers, Biogas silos, Biogas balloons	3
Dos Rios Water Recycling Center	San Antonio	105.32	125	TX0077801	Jun 2025	Clarifiers, Aerated lagoons, Biogas silos	48
City Of Dallas Central WWTP	Dallas	104	200	TX0047830	Apr 2027	Clarifiers, Aerated lagoons, Uncovered lagoons, Biogas silos	10
Wilson Creek Regional Wastewater Treatment Plant	Mc Kinney	70.77	24	TX0047911	Oct 2027	Clarifiers, Carrousels / oxidation ditches, Biogas balloons	24
Walnut Creek WWTP	Austin	56.6	100	TX0046981	Mar 2025	Clarifiers, Uncovered lagoons	0
Southwest WWTP	Houston	50.14	60	TX0062995	Sep 2027	Clarifiers	68
Hillebrandt WWTP	Beaumont	47.3	46	TX0046990	Apr 2029	Clarifiers, Aerated lagoons, Uncovered lagoons	24
South Austin Regional WWTP Electrical	Del Valle	43.8	75	TX0071889	Jun 2031	Clarifiers, Biogas balloons	0
South Mesquite Regional Wastewater Treatment Plant	Mesquite	37.57	41	TX0047431	Aug 2027	Clarifiers, Biogas silos	23
Roberto R Bustamante WWTP	El Paso	32.92	39	TX0101605	Apr 2030	Clarifiers, Uncovered lagoons, Biogas silos, Biogas balloons	35
Leon Creek Water Recycling Center	San Antonio	32	46	TX0052639	Jul 2027	Clarifiers	5
Pecan Creek Water Reclamation Plant	Denton	30.27	21	TX0047180	Jul 2028	Clarifiers, Biogas silos	8
City Of Houston	Houston	28.8	25	TX0062201	Aug 2002	Clarifiers	3
New Vince Bayou WWTF	Pasadena	25	14	TX0117528	Jul 2026	Clarifiers, Carrousels / oxidation ditches	139
City Of Garland Rowlett Creek WWTF	Garland	22.38	24	TX0024686	Oct 2030	Clarifiers, Biogas silos	6
Southeast Water Reclamation Plant	Lubbock	21.96	9	TX0106071	Nov 2024	Clarifiers, Biogas silos, Biogas balloons	270
Waco Metropolitan Area Regional Sewarge System	Waco	21.83	45	TX0026506	Jul 2030	Clarifiers, Uncovered lagoons, Biogas silos	48
Brushy Creek Regional Wastewater System - East	Round Rock	20.77	25	TX0101940	Jan 2029	Clarifiers, Biogas balloons	33
South Laredo WWTP	Laredo	16.98	18	TX0085316	Jun 2031	Clarifiers, Carrousels / oxidation ditches	2
River Road Wastewater Treatment Plant	Wichita Falls	16.92	19.91	TX0047686	Jul 2028	Clarifiers, Aerated lagoons, Biogas silos	2
City Of Houston Upper Brays WWTF	Houston	16.38	18	TX0088153	Aug 2030	Clarifiers	26
Oso WWTP	Corpus Christi	16.32	24	TX0047058	Sep 2025	Clarifiers	1
Laredo City Of Sewer Plant	Laredo	16.21	14	TX0025461	Oct 2027	Clarifiers, Biogas silos	81
Bell County Wcid #1 Wastewater Treatment Facility	Killeen	14.67	18	TX0102938	Feb 2030	Clarifiers, Carrousels / oxidation ditches	36
Northwest WWTP	Houston	14.58	18	TX0063011	Aug 2030	Clarifiers	16

The 50 largest plants in Texas →Texas capital improvement plans →

Texas plants by treatment technology

Activated sludge and clarifiers (684)Lagoon systems (373)Oxidation ditches (261)Anaerobic digesters and biogas (68)Chlorine disinfection (14)

All 1,220 plants in Texas

Facility	City	Flow (MGD)
Village Creek Reclamation Facility	Arlington	142
Dos Rios Water Recycling Center	San Antonio	105.32
City Of Dallas Central WWTP	Dallas	104
Wilson Creek Regional Wastewater Treatment Plant	Mc Kinney	70.77
Walnut Creek WWTP	Austin	56.6
Southwest WWTP	Houston	50.14
Hillebrandt WWTP	Beaumont	47.3
South Austin Regional WWTP Electrical	Del Valle	43.8
South Mesquite Regional Wastewater Treatment Plant	Mesquite	37.57
Roberto R Bustamante WWTP	El Paso	32.92
Leon Creek Water Recycling Center	San Antonio	32
Pecan Creek Water Reclamation Plant	Denton	30.27
City Of Houston	Houston	28.8
New Vince Bayou WWTF	Pasadena	25
City Of Garland Rowlett Creek WWTF	Garland	22.38
Southeast Water Reclamation Plant	Lubbock	21.96
Waco Metropolitan Area Regional Sewarge System	Waco	21.83
Brushy Creek Regional Wastewater System - East	Round Rock	20.77
South Laredo WWTP	Laredo	16.98
River Road Wastewater Treatment Plant	Wichita Falls	16.92
City Of Houston Upper Brays WWTF	Houston	16.38
Oso WWTP	Corpus Christi	16.32
Laredo City Of Sewer Plant	Laredo	16.21
Bell County Wcid #1 Wastewater Treatment Facility	Killeen	14.67
Northwest WWTP	Houston	14.58
Robindale WWTP	Brownsville	13.69
Denton Creek Regional WWTF	Roanoke	13.6
City Of Longview Main WWTP	Longview	13.3
Almeda Sims WWTP	Houston	12.85
Haskell R. Street Wastewater Treatment Plant	El Paso	12.08
Port Arthur Main WWTF	Port Arthur	11.9
South Regional Waste Water Treatment Facility	Texarkana	11.4
Dallas Salmon WWTP	League City	11.35
Keegans Bayou WWTP	Houston	11.12
Turkey Creek WWTF	Houston	10.85
City Of Texas City	Texas City	10.53
City Of Tyler- Westside Wastewater Treatment Plant	Tyler	10.19
Northeast WWTP	Houston	9.97
Chocolate Bayou Wastewater Treatment Facilities	Houston	9.94
City Of Nederland Wastewater Treatment Plant	Nederland	9.82
Galveston County Wcid 1 WWTP	Dickinson	9.8
Muddy Creek Regional WWTP	Wylie	9.67
South Mission 1 WWTP	Mission	9.49
Conroe Southwest Regional WWTP	Conroe	9.4
Temple Belton WWTP	Belton	9.2
West District WWTF	Houston	9.01
Medio Creek Water Recyc. Ctr.	San Antonio	8.96
Bob Derrington Water Reclamation Plant	Odessa	8.79
Jackson Street WWTP	Orange	8.7
Cibolo Creek Municipal Authority WWTP	Schertz	8.42
Sugar Land South WWTP	Sugar Land	8.37
City Of Tyler - Southside Wastewater Treatment Plant	Tyler	8.36
Carters Creek Wastewater Treatment Plant	College Station	8.25
Clute-Richwood WWTP	Clute	8.21
Victoria Regional WWTP	Victoria	8.05
Hamby WWTP	Hamby	7.99
City Of Pharr WWTP	Pharr	7.6
Gulf Coast Wat.Reclm.Ctr.-WWTP	Port Arthur	7.36
Blackhawk Regional WWTP	Houston	7.25
Southeast WWTP	Houston	7.24
Lakeview Regional Water Reclamation Plant	Lewisville	6.88
Harlingen WWTP	Harlingen	6.61
Ntmwd Stewart Creek West Wastewater Treatment Plant	Frisco	6.51
Sagemont WWTP	Houston	6.41
Beltway WWTP	Houston	6.39
Atascocita Regional WWTP	Houston	6.38
River Road WWTP	Amarillo	6.35
Robert T. Savely Water Reclamation Facility	Houston	6.3
STP 2a WWTP	Nacogdoches	6.2
Town Of Flower Mound WWTP	Flower Mound	6.2
Reflection Bay Water Reclamation Facility	Pearland	6.1
San Marcos WWTP	San Marcos	6.1
Su-Regional WWTF Plant	Houston	5.88
Stewart Creek Wastewater Treatment Plant	The Colony	5.88
Riverbend Reg Water Reclamation Facility	Lewisville	5.85
Salatrillo Creek WWTP	Converse	5.81
Eagle Pass STP	Eagle Pass	5.78
Fort Bend County Wcid 2	Stafford	5.76
City Of Lufkin Wastewater Treatment Plant	Lufkin	5.7
Burton Creek Wastewater Treatment Plant	Bryan	5.4
Harris County Wcid 47 WWTP	Houston	5.07
Kingwood Central WWTP	Houston	4.99
City Of Sugar Land North Wastewater Treatment Plant	Sugar Land	4.99
Sabine Creek WWTP	Wylie	4.96
City Of Pflugerville	Pflugerville	4.95
City Of South Houston	South Houston	4.88
City Of Alvin WWTP	Alvin	4.77
Central District Wastewater Treatment Plant	Baytown	4.75
Freshwater Supply District 23	Houston	4.6
Red Oak Creek Regional WWTP	Red Oak	4.6
The Woodlands WWTP 2	The Woodlands	4.58
City Of Grapevine - Peach Street Plant WWTP	Grapevine	4.56
Sulphur Springs WWTF	Sulphur Springs	4.53
Easthaven WWTP	Houston	4.47
City Of Kyle WWTP	Kyle	4.34
Intercontinental Airport WWTP	Houston	4.33
Little Cedar Bayou Wastewater Treatment Facility	La Porte	4.32
City Of Deer Park	Deer Park	4.31
City Of Katy Waste Water Treatment Plant	Katy	4.31
West District Wastewater Treatment Plant	Baytown	4.25
Kings Creek WWTP	Terrell	4.21
Mountain Creek Reg WWTP	Midlothian	4.2
Steep Bank/flat Bank WWTP	Missouri City	4.13
John Hargrove Water Reclamation Facility	Pearland	3.98
Wastewater Treatment Plant	Paris	3.93
City Of Corpus Christi	Corpus Christi	3.9
City Of Pearland Barry Rose W. W. Treatment Plant	Pearland	3.89
Paw Paw WWTF	Denison	3.86
City Of Corsicana Landfill	Corsicana	3.79
Chelford City Regional Wastewater Treatment Plant	Houston	3.73
Jackrabbit Road Pud WWTP	Houston	3.7
Greenville Wastewater Reclamation Center	Greenville	3.66
Galveston Airport Wastewater Treatment Plant	Galveston	3.63
Bell Co Wcid 1 WWTP 3	Killeen	3.6
Willowood WWTP	Houston	3.57
Conroe Central WWTP	Conroe	3.54
San Jacinto River Authority WWTP 2	The Woodlands	3.54
Mustang Creek WWTP	Taylor	3.5
Double Creek Wastewater Treatment Plant	Jacksonville	3.48
Northbelt WWTF	Houston	3.47
City Of Ennis Wastewater Treatment Plant	Ennis	3.45
City Of Cleburne Wastewater Treatment Plant	Cleburne	3.45
Little Elm WWTP	Little Elm	3.35
Sam C Mckenzie Jr Water Reclamation Facility	New Braunfels	3.35
Oyster Creek WWTP	Angleton	3.31
South Kuehler WWTF	New Braunfels	3.26
City Of Mercedes WWTP	Mercedes	3.23
Doshier Farm Wastewater Treatment Plant	Temple	3.19
Odem Street WWTP	Victoria	3.19
City Of San Juan WWTP	San Juan	3.12
Porter Mud WWTP	Porter	3.07
Aj Brown Parker Creek WWTF	Huntsville	3.04
City Of Hitchcock	Hitchcock	3.03
City Of Carthage Water & Swr	Carthage	3.02
West Memorial Mud	Katy	3
Lynn'S Bayou WWTP	Port Lavaca	2.99
City Of West Columbia	West Columbia	2.98
White Oak WWTP	Houston	2.95
City Of Bay City WWTP	Bay City	2.91
Lumberton Municipal Utility District	Lumberton	2.9
City Of La-Marque Wastewater Treatment Facility	La Marque	2.89
Moore Street Waste Water Treatment Plant	Beeville	2.88
Clinton Park WWTP	Houston	2.87
Weslaco North WWTP	Weslaco	2.85
Harris County Wcid 111 WWTP	Houston	2.8
Walnut Branch WWTP	Seguin	2.8
City Of Harker Heights	Harker Heights	2.77
Williamsburg Regional	Katy	2.77
Kleinwood Central Wastewater Treatment Plant	Spring	2.76
Main WWTP	Galveston	2.66
City Of Palestine	Palestine	2.64
Geronimo Creek Wastewater Treatment Plant	Seguin	2.61
Imperial Valley WWTP	Houston	2.59
Harris Co. Wcid 21 WWTP	Channelview	2.58
Richmond Regional Wastewater Treatment Plant	Richmond	2.56
City Of Leander WWTF	Leander	2.54
Floyd Branch Regional Wastewater Treatment Plant	Richardson	2.53
Laguna Madre WWTP	Corpus Christi	2.52
North Laredo WWTP	Laredo	2.51
City Of Brenham	Brenham	2.5
Tamu Main Campus WWTP	College Station	2.49
Weatherford Facility	Weatherford	2.47
City Of Gainesville Wastewater Treatment Plant	Gainesville	2.46
City Of Big Spring Water Reclamation Plant WWTP	Big Spring	2.46
Horizon Regional Mud - Horizon City WWTP	El Paso	2.45
Pecan Branch WWTP	Georgetown	2.45
Humble, City Of Southwest WWTP	Humble	2.43
Hondo WWTP	Hondo	2.43
City Of Bonham WWTP	Bonham	2.38
City Of Sanger WWTP	Sanger	2.37
Copperfield Plant WWTP	Houston	2.34
San Felipe WWTP	Del Rio	2.33
City Of Copperas Cove	Copperas Cove	2.29
City Of Mount Pleasant Wastewater Treatment Plant	Mount Pleasant	2.25
City Of Marlin	Marlin	2.23
City Of Cedar Park WRF	Cedar Park	2.2
Silver Lake WWTF	Del Rio	2.18
Renn Road Mud WWTP	Houston	2.16
City Of Bellaire	Bellaire	2.16
Southwest Water Reclamation Facility	League City	2.15
Gonzales WWTP	Gonzales	2.14
Oak Lane WWTP	Vidor	2.14
City Of Freeport Central WWTF	Freeport	2.13
Harris County Fwsd 61 WWTP	Cypress	2.12
Quail Valley WWTP	Missouri City	2.11
North Kuehler WWTP	New Braunfels	2.1
San Gabriel WWTP	Georgetown	2.06
Crosby Mud WWTF	Crosby	2.06
Northeast District Wastewater Treatment Plant	Baytown	2.03
San Benito Waste Water Treatment Plant	San Benito	2.02
Harris Co Mud 105 WWTP	Katy	2.02
Memorial Villages Wa WWTP	Houston	2.02
City Of Brownwood Wastewater Treatment Plant	Brownwood	2
Peninsula Water Reclamation Plant	Lewisville	1.99
Greenwood Forest WWTP	Houston	1.97
City Of Galena Park Plant 1	Galena Park	1.96
Homestead WWTP	Houston	1.92
City Of Celina WWTP	Celina	1.9
City Of Donna WWTP	Donna	1.9
City Of Kilgore Wastewater Treatment Plant	Kilgore	1.88

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Wastewater treatment in Texas: questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed September 11, 2026.

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