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Texas Water Quality
7,351 public water systems serving 33,253,313 people.
Water Systems
7,351
Total Violations
746,210
Violation Rate
90.2%
PFAS Detection
93.1%
1,068 of 1,147 tested
Largest Water Systems
CITY OF HOUSTON
HOUSTON, TX · 2,970,543 served
SAN ANTONIO WATER SYSTEM
SAN ANTONIO, TX · 2,113,151 served
DALLAS WATER UTILITY
DALLAS, TX · 1,356,479 served
CITY OF AUSTIN WATER & WASTEWATER
AUSTIN, TX · 1,115,323 served
CITY OF FORT WORTH
FORT WORTH, TX · 955,900 served
EL PASO WATER UTILITIES PUBLIC SERVICE B
EL PASO, TX · 747,168 served
CITY OF ARLINGTON
ARLINGTON, TX · 405,420 served
CITY OF CORPUS CHRISTI
CORPUS CHRISTI, TX · 318,387 served
CITY OF PLANO
PLANO, TX · 292,059 served
LUBBOCK PUBLIC WATER SYSTEM
LUBBOCK, TX · 275,041 served
CITY OF IRVING
IRVING, TX · 264,546 served
CITY OF LAREDO
LAREDO, TX · 260,046 served
CITY OF GARLAND
GARLAND, TX · 248,822 served
CITY OF FRISCO
FRISCO, TX · 231,910 served
CITY OF MCKINNEY
MCKINNEY, TX · 224,043 served
CITY OF GRAND PRAIRIE
GRAND PRAIRIE, TX · 201,843 served
AMARILLO MUNICIPAL WATER SYSTEM
AMARILLO, TX · 201,291 served
BROWNSVILLE PUBLIC UTILITIES BOARD
BROWNSVILLE, TX · 201,249 served
CITY OF GEORGETOWN
GEORGETOWN, TX · 191,639 served
MCALLEN PUBLIC UTILITY
MCALLEN, TX · 189,957 served
Most Violations
#1 SEVEN ESTATES WOLFFORTH
11,570 #2 FRANKLIN WATER SYSTEMS 3 DES PERES
6,516 #3 VALLEY ESTATES SHALLOWATER
4,987 #4 OAK HILL ACRES MOBILE HOME SUBDIVISION HOUSTON
3,979 #5 COUNTRY VIEW MHP SHALLOWATER
3,651 #6 CITY OF BRADY WATER SYSTEM BRADY
3,578 #7 BLUE RIDGE MOBILE HOME PARK HUNT
3,136 #8 WARREN ROAD SUBDIVISION WATER SUPPLY BARKER
3,063 #9 PATTON VILLAGE WEST WATER SYSTEM SPLENDORA
3,017 #10 LEE LIMAS MOBILE HOME PARK CANUTILLO
3,001 #11 T L WATER JONES ACRES NEWARK
2,913 #12 SOUTH MIDLAND COUNTY WATER SYSTEM HOUSTON
2,848 #13 DERBY ING HOUSTON
2,768 #14 LOS BOTINES WSC LAREDO
2,755 #15 KEY ROAD SUBDIVISION WATER SYSTEM BLOOMINGTON
2,592 Counties in Texas
Harris
1,292 systems · 6,016,117 served
· 78,495 violations
Dallas
37 systems · 3,180,170 served
· 2,618 violations
Bexar
82 systems · 2,376,579 served
· 13,955 violations
Tarrant
113 systems · 2,099,244 served
· 10,564 violations
Travis
138 systems · 1,547,700 served
· 7,557 violations
Collin
35 systems · 1,246,210 served
· 1,149 violations
El Paso
39 systems · 956,978 served
· 6,717 violations
Hidalgo
31 systems · 921,483 served
· 5,096 violations
Fort Bend
289 systems · 886,088 served
· 8,810 violations
Denton
98 systems · 811,262 served
· 10,762 violations
Montgomery
458 systems · 771,444 served
· 18,154 violations
Williamson
52 systems · 703,146 served
· 2,502 violations
Cameron
30 systems · 441,125 served
· 2,774 violations
Bell
30 systems · 418,473 served
· 1,709 violations
Brazoria
326 systems · 406,255 served
· 25,596 violations
Galveston
57 systems · 402,181 served
· 3,917 violations
Nueces
20 systems · 371,249 served
· 1,309 violations
Lubbock
75 systems · 315,226 served
· 50,449 violations
Hays
124 systems · 306,942 served
· 5,506 violations
Brazos
13 systems · 295,896 served
· 989 violations
McLennan
58 systems · 286,609 served
· 8,955 violations
Smith
47 systems · 281,563 served
· 4,260 violations
Webb
15 systems · 273,876 served
· 5,537 violations
Jefferson
23 systems · 252,985 served
· 2,290 violations
Ellis
34 systems · 251,348 served
· 2,967 violations
Comal
95 systems · 233,238 served
· 7,576 violations
Johnson
61 systems · 232,795 served
· 4,743 violations
Kaufman
31 systems · 212,736 served
· 1,389 violations
Guadalupe
18 systems · 207,597 served
· 3,891 violations
Potter
17 systems · 207,401 served
· 1,380 violations
Showing top 30 of 254 counties.