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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in United States · Texas

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1,440 inventory records · EPA Clean Watersheds Needs Survey 2022

Data years: 2022. The inventory date does not establish current operation.

1,440 results

CompareNameNative sizeYear
Harris Co WCID # 111 WWTPHouston7.2 MGD (million gallons per day)2022
Greenridge WWTPHouston7.05 MGD (million gallons per day)2022
Chocolate Bayou WWTPHouston7 MGD (million gallons per day)2022
FWSD #23 WWTPHouston7 MGD (million gallons per day)2022
Kingwood Central WWTPHouston7 MGD (million gallons per day)2022
Copperfield WWTPHouston6.7 MGD (million gallons per day)2022
Sugarland Regional WWTP - BRASugar Land6.5 MGD (million gallons per day)2022
Cleburne WWTPCleburne6.49 MGD (million gallons per day)2022
West Memorial WWTPKaty6.48 MGD (million gallons per day)2022
Woodforest Road WWTPHouston6.3 MGD (million gallons per day)2022
South Lake Granbury WWTPGranbury6.26 MGD (million gallons per day)2022
Central District WWTP - BaytownBaytown6.2 MGD (million gallons per day)2022
O J Riedel WWTPCibolo6.2 MGD (million gallons per day)2022
Sagemont WWTPHouston6.14 MGD (million gallons per day)2022
EAGLE PASS WWTPEagle Pass6 MGD (million gallons per day)2022
South WWTPKilleen6 MGD (million gallons per day)2022
Paw Paw WWTPDenison6 MGD (million gallons per day)2022
East District WWTP - BaytownBaytown6 MGD (million gallons per day)2022
Deer Park WWTPDeer Park6 MGD (million gallons per day)2022
Seabrook WWTPSeabrook6 MGD (million gallons per day)2022
Atascocita Central WWTPHouston6 MGD (million gallons per day)2022
Woodlands WWTPSpring6 MGD (million gallons per day)2022
Edinburg WWTPEdinburg5.9 MGD (million gallons per day)2022
Lake Jackson WWTPLake Jackson5.85 MGD (million gallons per day)2022
Salatrillo WWTPSan Antonio5.83 MGD (million gallons per day)2022
Harris Co WCID #47 WWTPHouston5.76 MGD (million gallons per day)2022
Peach Street Plant WWTPGrapevine5.75 MGD (million gallons per day)2022
Greenville WWTPGreenville5.723 MGD (million gallons per day)2022
Walnut Branch WWTPSeguin5.5 MGD (million gallons per day)2022
Sulphur Springs WWTPSulphur Springs5.4 MGD (million gallons per day)2022
Pharr WWTPPharr5.1 MGD (million gallons per day)2022
Jackrabbit WWTPHouston5.1 MGD (million gallons per day)2022
Stafford WWTPStafford5.1 MGD (million gallons per day)2022
Mercedes WWTPMercedes5.09 MGD (million gallons per day)2022
Lakeview Regional WWTPLewisville5 MGD (million gallons per day)2022
ALLISON STP #1Corpus Christi5 MGD (million gallons per day)2022
Northwest Plant - LubbockLubbock5 MGD (million gallons per day)2022
Stewart Creek West WWTPWylie5 MGD (million gallons per day)2022
ALVIN WWTPAlvin5 MGD (million gallons per day)2022
Metro Central Regional WWTPHouston5 MGD (million gallons per day)2022
Northbelt Regional WWTPHumble5 MGD (million gallons per day)2022
Kleinwood Central WWTPHouston5 MGD (million gallons per day)2022
Georgia Street WWTPPort Neches4.98 MGD (million gallons per day)2022
Ponderosa Central WWTPHouston4.87 MGD (million gallons per day)2022
Dickinson WWTP #1Dickinson4.8 MGD (million gallons per day)2022
Floyd Branch WWTPRichardson4.75 MGD (million gallons per day)2022
Weatherford WWTPWeatherford4.55 MGD (million gallons per day)2022
King's Creek WWTPTerrell4.5 MGD (million gallons per day)2022
Bellaire WWTPBellaire4.5 MGD (million gallons per day)2022
Kyle WWTPKyle4.5 MGD (million gallons per day)2022
Victoria - Hand Rd WWTPVictoria4.4 MGD (million gallons per day)2022
Still Creek WWTPBryan4.35 MGD (million gallons per day)2022
Bay City WWTPBay City4.3 MGD (million gallons per day)2022
GTUA-Gainsville WWTPGainesville4.23 MGD (million gallons per day)2022
Kuelher Road South WWTPNew Braunfels4.2 MGD (million gallons per day)2022
Cactus WWTPCactus4.13 MGD (million gallons per day)2022
PARKER BRANCH STPHuntsville4.1 MGD (million gallons per day)2022
Texas A & M WWTPCollege Station4 MGD (million gallons per day)2022
San Juan WWTPSan Juan4 MGD (million gallons per day)2022
Pflugerville - Wilbarger Creek WWTPPflugerville4 MGD (million gallons per day)2022
CLUTE WWTPClute4 MGD (million gallons per day)2022
New Island WWTPPearland4 MGD (million gallons per day)2022
League City - South WWTPLeague City4 MGD (million gallons per day)2022
West District WWTP - BaytownBaytown4 MGD (million gallons per day)2022
New Northeast WWTPBaytown4 MGD (million gallons per day)2022
Homestead WWTPHouston4 MGD (million gallons per day)2022
White Oak WWTPHouston4 MGD (million gallons per day)2022
Imperial Valley WWTPHouston4 MGD (million gallons per day)2022
South Houston WWTPSouth Houston4 MGD (million gallons per day)2022
Southwest WWTP - DaytonDayton4 MGD (million gallons per day)2022
Quail Valley WWTPMissouri City4 MGD (million gallons per day)2022
Del Rio - San Felipe WWTPDel Rio3.8 MGD (million gallons per day)2022
Nederland WWTPNederland3.8 MGD (million gallons per day)2022
San Benito WWTPSan Benito3.75 MGD (million gallons per day)2022
Airport WWTP #3Galveston3.75 MGD (million gallons per day)2022
Oyster Creek WWTPAngleton3.72 MGD (million gallons per day)2022
Big Spring WWTPBig Spring3.71 MGD (million gallons per day)2022
Northgate WWTPHouston3.71 MGD (million gallons per day)2022
Hoggs Bayou WWTPCarthage3.6 MGD (million gallons per day)2022
Brownwood WWTPBrownwood3.6 MGD (million gallons per day)2022
Third Creek WWTPKerrville3.52 MGD (million gallons per day)2022
Red Oak Regional WWTPRed Oak3.5 MGD (million gallons per day)2022
Park Ten MUD WWTPHouston3.5 MGD (million gallons per day)2022
Martinez II WWTPSan Antonio3.5 MGD (million gallons per day)2022
Cowart Creek WWTPPearland3.45 MGD (million gallons per day)2022
Katy WWTPKaty3.45 MGD (million gallons per day)2022
Plainview WWTPPlainview3.4 MGD (million gallons per day)2022
Stewart Creek WWTP - The ColonyThe Colony3.39 MGD (million gallons per day)2022
Lumberton MUD WWTP # 2Lumberton3.3 MGD (million gallons per day)2022
Southwest WWTP - HumbleHumble3.3 MGD (million gallons per day)2022
White Oak Regional WWTPHouston3.2 MGD (million gallons per day)2022
West Bastrop WWTPBastrop3.2 MGD (million gallons per day)2022
BARRY ROSE WWTP #2Pearland3.1 MGD (million gallons per day)2022
Longwood WWTPPearland3.1 MGD (million gallons per day)2022
Kuehler Road North WWTPNew Braunfels3.1 MGD (million gallons per day)2022
Memorial Villages WWTPHouston3.052 MGD (million gallons per day)2022
Northwest WWTP - Copperas CoveCopperas Cove3.05 MGD (million gallons per day)2022
Greenwood Forest WWTPHouston3.02 MGD (million gallons per day)2022
Mountain Creek Regional WWTPMidlothian3 MGD (million gallons per day)2022
Laguna Madre WWTPCorpus Christi3 MGD (million gallons per day)2022

Regulatory context

General reference. This is not an exhaustive review of applicable law.

United States: Clean Water Act / NPDES

NPDES regulates pollutant discharges from point sources to waters of the United States. The permit sets limits and monitoring conditions. A CWNS code identifies an inventory record, not an NPDES permit.

  • Permit identifier and permitting authority: EPA or an authorized state.
  • Outfall and receiving water; sewer connections follow a different control route.
  • Current permit conditions, limits and dated measurements; these are not included in CWNS.

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.