STATE REPORT
TX
17 ALERTS
493 HEALTH VIOLATIONS
Texas Water Quality & Safety Report
50 ZIP codes · 201 water systems · IPC plumbing code · Updated 2026-03-16
Data: EPA SDWIS, NWS, State plumbing boards, Rewiring America Last verified: 2026-03-16
50
ZIP Codes
201
Water Systems
46
ZIPs with Violations
17
Active Alerts
IPC
Plumbing Code
Overview
We track water quality, weather alerts, plumbing regulations, and energy rebates for 50 ZIP codes across Texas, covering 201 community water systems that serve approximately 15,229,229 people.
46 of 50 ZIP codes (92%) have recorded EPA violations. 493 health-based violations have been documented.
Active Weather Alerts
17 active alerts in Texas including 14 warnings. Severe weather can directly affect tap water quality — flooding, power outages, and infrastructure damage may lead to boil-water advisories.
| Alert | Severity | Areas |
|---|---|---|
| Red Flag Warning | Severe | Vernon; Rapides; Avoyelles; Beauregard; Allen; Evangeline… |
| Freeze Watch | Severe | Lafayette; Upper St. Martin; Northern Calcasieu; Northern… |
| High Wind Warning | Severe | Guadalupe Mountains of Eddy County; Guadalupe Mountains A… |
| Fire Weather Watch | Severe | Harper; Woods; Alfalfa; Ellis; Woodward; Major; Garfield;… |
| Red Flag Warning | Severe | La Salle; McMullen; Live Oak; Bee; Goliad; Victoria; Webb… |
Plumbing Regulations
Texas follows the Texas Plumbing Code (based on IPC) (2021 edition).
- Plumbing code: IPC (2021)
- Homeowner DIY: Allowed with permit
- Water heater permit: Varies by city
- Annual backflow test: Required
Areas with Most Violations
| ZIP Code | City | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|---|
| 75501 | Texarkana | — | 270 | 2 | TEXARKANA WATER UTILITIES |
| 75050 | Grand Prairie | — | 225 | 4 | CITY OF GRAND PRAIRIE |
| 79401 | Lubbock | — | 135 | 44 | LUBBOCK PUBLIC WATER SYSTEM |
| 78040 | Laredo | — | 88 | 71 | CITY OF LAREDO |
| 75080 | Richardson | — | 84 | 56 | CITY OF RICHARDSON |
| 79101 | Amarillo | — | 80 | 2 | AMARILLO MUNICIPAL WATER SYSTEM |
| 76528 | Gatesville | — | 77 | 56 | CITY OF GATESVILLE |
| 76301 | Wichita Falls | — | 75 | 66 | CITY OF WICHITA FALLS |
| 75901 | Lufkin | — | 71 | 52 | CITY OF LUFKIN |
| 79701 | Midland | — | 55 | 14 | CITY OF MIDLAND WATER PURIFICATION PLANT |
Areas with No Violations
| ZIP Code | City | Safety Score | System | Population |
|---|---|---|---|---|
| 75006 | Carrollton | — | CITY OF CARROLLTON | 136,170 |
| 75014 | Irving | — | CITY OF IRVING | 264,546 |
| 77301 | Conroe | — | CITY OF CONROE | 113,912 |
| 78501 | Mcallen | — | MCALLEN PUBLIC UTILITY | 189,957 |
Lead & Copper
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
- High risk (Zone 1): 0 ZIP codes (0%)
- Moderate risk (Zone 2): 0 ZIP codes
- Low risk (Zone 3): 0 ZIP codes
All 50 ZIP Codes in Texas
- 79601 (Abilene) — 43 violations ⚠
- 79101 (Amarillo) — 80 violations ⚠
- 76001 (Arlington) — 11 violations ⚠
- 73301 (Austin) — 10 violations ⚠
- 77701 (Beaumont) — 28 violations ⚠
- 78520 (Brownsville) — 13 violations
- 77801 (Bryan) — 10 violations
- 75006 (Carrollton)
- 77840 (College Station) — 8 violations ⚠
- 77301 (Conroe)
- 78401 (Corpus Christi) — 6 violations ⚠
- 75201 (Dallas) — 10 violations
- 76201 (Denton) — 5 violations
- 79901 (El Paso) — 18 violations
- 76101 (Fort Worth) — 7 violations ⚠
- 77550 (Galveston) — 1 violation
- 75040 (Garland) — 3 violations
- 76528 (Gatesville) — 77 violations ⚠
- 75050 (Grand Prairie) — 225 violations ⚠
- 75401 (Greenville) — 6 violations
- 77001 (Houston) — 2 violations ⚠
- 77320 (Huntsville) — 27 violations ⚠
- 75014 (Irving)
- 77449 (Katy) — 1 violation
- 76540 (Killeen) — 17 violations ⚠
- 78040 (Laredo) — 88 violations ⚠
- 75029 (Lewisville) — 26 violations ⚠
- 75601 (Longview) — 1 violation
- 79401 (Lubbock) — 135 violations ⚠
- 75901 (Lufkin) — 71 violations ⚠
- 78501 (Mcallen)
- 75149 (Mesquite) — 4 violations
- 79701 (Midland) — 55 violations ⚠
- 75961 (Nacogdoches) — 38 violations ⚠
- 79760 (Odessa) — 50 violations ⚠
- 75801 (Palestine) — 17 violations ⚠
- 77501 (Pasadena) — 17 violations
- 75023 (Plano) — 1 violation
- 75080 (Richardson) — 84 violations ⚠
- 78664 (Round Rock) — 2 violations
- 76901 (San Angelo) — 18 violations ⚠
- 78201 (San Antonio) — 4 violations ⚠
- 77373 (Spring) — 2 violations
- 77478 (Sugar Land) — 1 violation
- 76501 (Temple) — 1 violation
- 75501 (Texarkana) — 270 violations ⚠
- 75701 (Tyler) — 13 violations ⚠
- 77901 (Victoria) — 53 violations ⚠
- 76701 (Waco) — 22 violations
- 76301 (Wichita Falls) — 75 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Weather alerts: National Weather Service (NWS)
- Regulations: State plumbing boards, ICC, IAPMO
- Rebates: Rewiring America
Updated daily.