Texas tap water quality

4,760 active community water systems.

Largest water systems

Grade	System	People	Health violations (5y)
B	Houston Public Works (City of Houston Water)	2,970,543	1
A	San Antonio Water System (SAWS)	2,643,729	0
A	Dallas Water Utilities	1,356,479	0
B	Austin Water	1,115,323	1
D	Fort Worth Water	955,900	0
C	El Paso Water	747,168	0
A	City of Arlington Water Utilities	413,955	0
A	City of Corpus Christi Water Utilities	317,247	0
A	City of Plano	292,059	0
A	Lubbock Public Water System	266,450	0
A	City of Irving	264,546	0
D	City of Laredo	260,046	3
A	City of Garland	248,822	0
A	City of Frisco	231,910	0
A	City of McKinney	224,043	0
B	City of Grand Prairie	201,843	0
A	Amarillo Municipal Water System	201,291	0
B	Brownsville Public Utilities Board	201,249	0
B	City of Georgetown	191,639	1
C	North Alamo WSC	171,195	2
A	City of Killeen	161,027	0
A	City of Mesquite	158,412	0
D	City of Midland Water Purification Plant	157,000	6
A	City of Pasadena	152,000	0
A	City of Denton	150,037	0
A	City of League City	149,557	0
A	City of Waco	146,241	0
A	McAllen Public Utility	145,050	0
A	City of Lewisville	140,880	0
A	City of Carrollton	136,170	0
A	City of Round Rock	130,662	0
D	City of Abilene	130,501	0
A	Mustang SUD	127,911	0
A	City of Pearland	125,828	0
A	City of Odessa	123,334	0
A	City of Richardson	122,615	0
A	New Braunfels Utilities	116,477	0
A	City of Conroe	113,912	0
A	City of Allen	113,746	0
A	City of Beaumont Water Utility Dept	113,567	0
B	City of Tyler	107,000	1
C	City of San Angelo	105,229	2
A	City of College Station	104,103	0
A	City of Wichita Falls	101,915	0
B	City of Leander	98,330	0
A	City of Temple	94,935	0
A	City of Bryan	91,031	0
B	Clear Lake City Water Authority	89,702	0
A	City of Mansfield	89,227	0
A	City of Cedar Park	86,939	0

Most issues (systems serving 10,000+)

Manville WSC

Serves 39,648 people · Surface water · Full report →

4 health-based violations in the last 5 years; 5 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS; Other PFAS above 2024 limits (rule proposed for repeal): PFNA, Hazard Index; Lead 90th percentile below the action level (2025).

City of Pflugerville

Serves 63,464 people · Surface water · Full report →

3 health-based violations in the last 5 years; 2 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOS, PFOA; Other PFAS above 2024 limits (rule proposed for repeal): PFNA, Hazard Index; Lead 90th percentile below the action level (2025).

Cities

Abbott Abernathy Abilene Ace Ackerly Addison Adkins Adrian Agua Dulce Alamo Alba Albany Aledo Alice Allen Alleyton Alpine Alto Alvarado Alvin Alvord Amarillo Amherst Anahuac Anderson Andrews Angleton Anna Annona Anson Anthony Anton Apple Springs Aquilla Aransas Pass Archer City Argyle Arlington Arp Artesia Wells Arthur City Asherton Aspermont Atascosa Athens Atlanta Aubrey Austin Austwell Avalon Avery Avinger Avoca Axtell Azle Bacliff Bagwell Bailey Baird Balch Springs Ballinger Balmorhea Bandera Bangs Banquete Bardwell Barnhart Barry Barstow Bartlett Bastrop Batesville Batson Bay City Bayside Baytown Beasley Beaumont Beckville Bedford Bedias Beeville Bellaire Bellevue Bells Bellville Belton Ben Bolt Ben Franklin Ben Wheeler Benavides Bend Benjamin Berclair Bertram Big Bend National Park Big Lake Big Sandy Big Spring Big Wells Bigfoot Bishop Bivins Blackwell Blanco Blanket Bledsoe Blessing Bloomburg Blooming Grove Bloomington Blossom Blue Ridge Bluff Dale Bluffton Blum Boerne Bogata Boling Bon Wier Bonham Booker Borger Bovina Bowie Boyd Boys Ranch Brackettville Brady Brandon Brashear Brazoria Breckenridge Bremond Brenham Bridge City Bridgeport Briscoe Broaddus Bronson Bronte Brookeland Brookesmith Brookshire Brookston Brownfield Brownsboro Brownsville Brownwood Bruceville Bruni Bryan Bryson Buchanan Dam Buckholts Buda Buffalo Buffalo Gap Bullard Bulverde Buna Burkburnett Burkett Burkeville Burleson Burlington Burnet Burton Byers Bynum Cactus Caddo Caddo Mills Caldwell Call Calliham Calvert Camden Cameron Camp Wood Campbell Campbellton Canadian Canton Canutillo Canyon Canyon Lake Carbon Carlsbad Carmine Carrizo Springs Carrollton Carthage Castroville Catarina Cedar Creek Cedar Hill Cedar Lane Cedar Park Celeste Celina Center Center Point Centerville Chandler Channelview Channing Chappell Hill Charlotte Chatfield Cherokee Chester Chico Chicota Childress Chillicothe Chilton China China Spring Chireno Chriesman Christine Cibolo Cisco Clarendon Clarksville Claude Cleburne Cleveland Clifton Clint Clute Clyde Coahoma Coldspring Coleman College Station Colleyville Collinsville Colmesneil Colorado City Columbus Comanche Combes Comfort Commerce Como Comstock Concan Concepcion Conroe Converse Cookville Coolidge Cooper Copeville Coppell Copperas Cove Corpus Christi Corrigan Corsicana Cost Cotton Center Cotulla Coupland Covington Crandall Crane Cranfills Gap Crawford Cresson Crockett Crosby Crosbyton Cross Plains Crowell Crowley Crystal City Cuero Cumby Cuney Cunningham Cushing Cypress D Hanis Daingerfield Daisetta Dale Dalhart Dallas Damon Danbury Darrouzett Davilla Dawson Dayton De Berry De Kalb De Leon Decatur Deer Park Del Rio Del Valle Denison Dennis Denton Denver City Deport Desoto Detroit Devers Devine Deweyville Diana Diboll Dickinson Dike Dilley Dime Box Dimmitt Dobbin Dodd City Dodge Dodson Donie Donna Doole Doucette Dougherty Douglass Douglassville Driftwood Dripping Springs Driscoll Dublin Dumas Duncanville Dyess Afb Eagle Lake Eagle Pass Early Earth East Bernard Eastland Easton Ector Edcouch Eddy Eden Edgewood Edinburg Edmonson Edna Edroy Egypt El Campo El Paso Eldorado Elgin Elkhart Ellinger Elm Mott Elmaton Elmendorf Elsa Elysian Fields Emory Encinal Encino Enloe Ennis Eola Era Estelline Etoile Euless Eustace Evadale Evant Fabens Fairfield Falcon Heights Falfurrias Falls City Fannin Farmersville Farnsworth Farwell Fate Fayetteville Fentress Ferris Fieldton Fischer Flatonia Flint Flomot Florence Floresville Flower Mound Floydada Fluvanna Flynn Follett Forestburg Forney Forreston Forsan Fort Bliss Fort Davis Fort Hancock Fort Hood Fort Stockton Fort Worth Fowlerton Franklin Frankston Fred Fredericksburg Freeport Freer Fresno Friendswood Friona Frisco Fritch Frost Fruitvale Fulshear Fulton Gail Gainesville Galena Park Gallatin Galveston Ganado Garciasville Garden City Gardendale Garland Garrison Gary Gatesville Gause George West Georgetown Giddings Gilchrist Gillett Gilmer Girard Gladewater Glen Flora Glen Rose Glidden Godley Goldsboro Goldsmith Goldthwaite Goliad Gonzales Goodfellow Afb Goodrich Gordon Gordonville Goree Gorman Gouldbusk Graford Graham Granbury Grand Prairie Grand Saline Grandfalls Grandview Granger Grapeland Grapevine Greenville Greenwood Gregory Groesbeck Groom Groves Groveton Grulla Gruver Gunter Gustine Guthrie Guy Hale Center Hallettsville Hallsville Haltom City Hamilton Hamlin Hamshire Hankamer Happy Hardin Hargill Harker Heights Harleton Harlingen Harper Harrold Hart Hartley Harwood Haskell Haslet Hawkins Hawley Hearne Hebbronville Hedley Helotes Hemphill Hempstead Henderson Henrietta Hereford Hermleigh Hewitt Hico Hidalgo Higgins High Island Highlands Hillister Hillsboro Hitchcock Hobson Hockley Holland Holliday Hondo Honey Grove Hooks Horseshoe Bay Houston Howe Hubbard Huffman Hughes Springs Hull Humble Hungerford Hunt Huntington Huntsville Hurst Hutchins Hutto Idalou Inez Ingleside Ingram Iola Iowa Park Ira Iraan Iredell Irene Irving Italy Itasca Ivanhoe Jacksboro Jacksonville Jarrell Jasper Jayton Jbsa Ft Sam Houston Jbsa Lackland Jbsa Randolph Jefferson Jewett Joaquin Johnson City Jonesboro Josephine Joshua Jourdanton Junction Justiceburg Justin Karnack Karnes City Katy Kaufman Keene Keller Kemah Kemp Kempner Kendleton Kenedy Kennard Kennedale Kerens Kermit Kerrville Kildare Kilgore Killeen Kingsbury Kingsland Kingsville Kingwood Kirbyville Kirvin Klondike Knickerbocker Knippa Knox City Kosse Kountze Kress Krum Kyle La Blanca La Coste La Feria La Grange La Joya La Marque La Porte La Pryor La Salle La Vernia La Villa La Ward Ladonia Lake Creek Lake Dallas Lake Jackson Lakeview Lamesa Lampasas Lancaster Lane City Laneville Laredo Larue Lasara Latexo Laughlin Afb Lavon Lawn Lazbuddie League City Leakey Leander Ledbetter Leesburg Leesville Lefors Leggett Leming Lenorah Leona Leonard Leroy Levelland Lewisville Lexington Liberty Liberty Hill Lillian Lincoln Lindale Linden Lindsay Linn Lipan Little Elm Little River Academy Littlefield Liverpool Livingston Llano Lockhart Lockney Lohn Lolita Lometa London Lone Oak Lone Star Long Branch Longview Loop Lopeno Loraine Lorena Lorenzo Los Ebanos Los Fresnos Los Indios Lott Louise Lovelady Loving Lubbock Lufkin Luling Lumberton Lyford Lytle Mabank Macdona Madisonville Magnolia Malakoff Malone Manchaca Manor Mansfield Manvel Maple Marathon Marble Falls Marfa Marietta Marion Markham Marlin Marquez Marshall Mart Martindale Mason Matador Matagorda Mathis Maud Mauriceville Maxwell May Maydelle Maypearl Mc Camey Mc Caulley Mc Dade Mc Gregor Mc Leod Mc Queeney Mcadoo Mcallen Mckinney Mclean Medina Megargel Melissa Melvin Memphis Menard Mentone Mercedes Mereta Meridian Merit Merkel Mertens Mertzon Mesquite Mexia Miami Mico Midfield Midland Midlothian Midway Milam Milano Miles Milford Millersview Millican Millsap Mineola Mineral Wells Mingus Mirando City Mission Missouri City Mobeetie Monahans Mont Belvieu Montague Montalba Montgomery Moody Moore Moran Morgan Morse Morton Moscow Moulton Mount Calm Mount Enterprise Mount Pleasant Mount Vernon Muenster Muldoon Muleshoe Mullin Mumford Munday Murchison Myra Nacogdoches Nada Naples Nash Natalia Naval Air Station Jrb Navasota Nazareth Neches Nederland Needville Nemo Nevada New Boston New Braunfels New Caney New Deal New London New Summerfield New Ulm New Waverly Newark Newcastle Newton Nixon Nocona Nolanville Nome Nordheim Normangee North Richland Hills North Zulch Novice O Brien Oakhurst Oakville Oakwood Odem Odessa Odonnell Oglesby Oklaunion Old Glory Olden Olmito Olney Olton Omaha Onalaska Orange Orange Grove Orchard Ore City Ovalo Overton Ozona Paducah Paige Paint Rock Palacios Palestine Palmer Palo Pinto Pampa Pandora Panhandle Panna Maria Paradise Paris Pasadena Pattison Pattonville Pawnee Pearland Pearsall Pecan Gap Pecos Penelope Penitas Pennington Perrin Perryton Petersburg Petrolia Pettus Petty Pflugerville Pharr Pickton Pilot Point Pinehurst Pineland Pipe Creek Pittsburg Placedo Plains Plainview Plano Plantersville Pleasanton Plum Point Point Comfort Pointblank Pollok Ponder Poolville Port Aransas Port Arthur Port Bolivar Port Isabel Port Lavaca Port Mansfield Port Neches Port O Connor Porter Portland Post Poteet Poth Pottsboro Powderly Powell Prairie Hill Prairie Lea Prairie View Premont Presidio Priddy Princeton Progreso Prosper Purdon Purmela Pyote Quanah Queen City Quemado Quinlan Quitaque Quitman Rainbow Ralls Randolph Ranger Rankin Ransom Canyon Ratcliff Ravenna Raymondville Reagan Realitos Red Oak Red Rock Redford Redwater Refugio Reklaw Rhome Rice Richards Richardson Richland Richland Springs Richmond Riesel Ringgold Rio Frio Rio Grande City Rio Hondo Rio Medina Rio Vista Rising Star Riverside Riviera Roanoke Roaring Springs Robert Lee Robstown Roby Rochelle Rochester Rock Island Rockdale Rockport Rocksprings Rockwall Rockwood Rogers Roma Romayor Ropesville Rosanky Roscoe Rosebud Rosenberg Rosharon Rosser Rotan Round Rock Round Top Rowena Rowlett Roxton Royse City Rule Runge Rusk Rye Sabinal Sachse Sacul Sadler Saint Hedwig Saint Jo Salado Salineno Salt Flat Saltillo San Angelo San Antonio San Augustine San Benito San Diego San Elizario San Juan San Marcos San Perlita San Saba San Ygnacio Sanderson Sandia Sanford Sanger Santa Anna Santa Fe Santa Maria Santa Rosa Santo Saragosa Saratoga Satin Savoy Schertz Schulenburg Schwertner Scotland Scroggins Scurry Seabrook Seadrift Seagoville Seagraves Sealy Sebastian Seguin Seminole Seymour Shallowater Shamrock Sheffield Shelbyville Shepherd Sheppard Afb Sheridan Sherman Shiner Shiro Sidney Sierra Blanca Silsbee Silverton Simms Simonton Sinton Skidmore Slaton Slidell Smiley Smithville Smyer Snook Snyder Somerset Somerville Sonora Sour Lake South Bend South Houston South Padre Island Southlake Southmayd Spade Spearman Spicewood Splendora Spring Spring Branch Springlake Springtown Spur Spurger Stafford Stamford Stanton Staples Stephenville Sterling City Stinnett Stockdale Stonewall Stowell Stratford Strawn Streetman Sugar Land Sullivan City Sulphur Bluff Sulphur Springs Summerfield Sumner Sundown Sunnyvale Sunray Sunset Sutherland Springs Sweeny Sweet Home Sweetwater Sylvester Taft Tahoka Talco Talpa Tatum Taylor Teague Tehuacana Telephone Telferner Tell Temple Tenaha Tennessee Colony Terlingua Terrell Texarkana Texas City Texline The Colony Thicket Thompsons Thorndale Thornton Thrall Three Rivers Throckmorton Tilden Timpson Tioga Tivoli Tolar Tom Bean Tomball Tornillo Tow Toyah Trenton Trinidad Trinity Troup Troy Tuleta Tulia Turkey Tuscola Tye Tyler Tynan Umbarger Universal City Utopia Uvalde Valentine Valera Valley Mills Valley Spring Valley View Van Van Alstyne Van Horn Van Vleck Vancourt Vanderbilt Vega Venus Vernon Victoria Vidor Village Mills Von Ormy Voss Votaw Waco Waelder Waka Wall Waller Wallis Wallisville Walnut Springs Warda Warren Washington Waskom Waxahachie Weatherford Webster Weimar Weinert Welch Wellborn Wellington Wellman Wells Weslaco West West Columbia West Point Westbrook Westhoff Wharton Wheeler White Deer White Oak Whiteface Whitehouse Whitesboro Whitewright Whitharral Whitney Whitsett Whitt Wichita Falls Wickett Wiergate Wildorado Willis Wills Point Wilmer Wilson Wimberley Windom Windthorst Winfield Wingate Wink Winnie Winnsboro Winona Winters Woden Wolfe City Wolfforth Woodsboro Woodson Woodville Woodway Wortham Wrightsboro Wylie Yancey Yantis Yoakum Yorktown Zapata Zavalla Zephyr

Texas tap water quality

Largest water systems

Most issues (systems serving 10,000+)

Manville WSC

City of Pflugerville

City of Boerne

City of Roma

Atascosa Rural WSC

City of LA Grulla

Hudson WSC

City of Bay City

Orange County WCID 1

City of Beeville

Clwsc Canyon Lake Shores

Maxwell SUD

City of Port Lavaca

City of Palestine

City of Big Spring

City of Burkburnett

City of Midland Water Purification Plant

City of Bastrop

City of Nederland

Military Hwy WSC Las Rusias

Cities