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Texas Water Quality
2,761
Utilities in database
29.0M
Residents served
8
With open violations
1,117
PFAS monitored
Quick Answer
Texas public drinking water is served by 2,761 EPA-tracked water systems, providing service to approximately 29.0 million residents through public utilities. 8 of those systems currently have open health-based violations on record in the EPA federal database. 1,117 systems have official PFAS monitoring records from the EPA UCMR 5 program (2023–2025). About 22% of TX residents use private wells, which fall outside federal utility compliance monitoring.
8 Texas water systems have open health-based violations recorded in EPA SDWIS. An open violation means a contaminant exceeded a federal limit and the violation has not been formally resolved in the federal database. Check individual utility pages for current status.
Open Health-Based Violations in Texas
Records sourced from EPA SDWIS. A record may be under review or resolved at the utility level but not yet updated in federal records. Water Utility Report does not determine whether water is safe to drink.
Drinking Water in Texas
Texas has more public water systems than any other state. Groundwater from the Ogallala and Edwards aquifers serves millions of Texans. Naturally occurring arsenic is elevated in parts of West Texas, and agricultural nitrate contamination is a documented concern in rural areas. TCEQ holds primary enforcement authority over Texas water systems.
Highest Risk Utilities
Texas systems with open health-based violations in EPA records.
Safest Large Utilities
Texas systems with no open health violations serving 10,000+ residents.
Utilities in Texas
301–325 of 2,761Quail Valley Utility District
TX0790028 · 14,409 served
New Caney Mud
TX1700101 · 14,307 served
City of Dumas
TX1710001 · 14,290 served
Harris County Mud 285
TX1012677 · 14,268 served
City of Houston Willow Chase
TX1011902 · 14,169 served
City of Andrews
TX0020001 · 14,109 served
Nueces County Wcid 3
TX1780005 · 14,000 served
Meadowhill Regional Mud
TX1010387 · 13,863 served
Atascosa Rural Wsc
TX0150040 · 13,857 served
Harris County Wcid 21
TX1010769 · 13,845 served
City of Buda
TX1050012 · 13,830 served
Remington Mud 1
TX1013074 · 13,746 served
Zapata County Waterworks Swtp
TX2530002 · 13,736 served
City of Webster
TX1010226 · 13,710 served
City of Forest Hill
TX2200011 · 13,701 served
Cypress Springs Sud N Plant 1 and Ne Pla
TX0800003 · 13,698 served
Fort Bend County Mud 23
TX0790237 · 13,695 served
City of Beeville
TX0130001 · 13,664 served
Trophy Club Mud 1
TX0610018 · 13,649 served
City of Seabrook
TX1010062 · 13,560 served
Southern Montgomery County Mud
TX1700073 · 13,372 served
Denton County Fwsd 7
TX0610228 · 13,325 served
City of Bastrop
TX0110001 · 13,209 served
College Mound Sud
TX1290012 · 13,200 served
Newport Mud
TX1010362 · 13,191 served
Key Contaminant Concerns in Texas
These contaminants appear most frequently in Texas utility records or pose elevated risk in this region based on EPA data.
Nitrates
Nitrate (NO₃⁻) is a nitrogen-containing compound that forms naturally through the decomposition of organic matter. At elevated concentrations — almost always caused by human activity — nitrate is converted in the digestive system to nitrite, which then reacts with hemoglobin to form methemoglobin, a form of hemoglobin that cannot carry oxygen. In the body, nitrite also reacts with amines in food to form N-nitroso compounds (nitrosamines) — known carcinogens classified by the IARC as Group 2A (probable human carcinogens). The United States applies over 23 million tons of nitrogen fertilizer annually, making agricultural runoff the dominant source of nitrate contamination in U.S. groundwater.
EPA limit: 10 mg/L
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
EPA limit: 80 µg/L (TTHMs) / 60 µg/L (HAA5)
Arsenic
Arsenic (As) occurs naturally in rock and soil, dissolving into groundwater through natural weathering processes. Inorganic arsenic — the form found in drinking water — is a known human carcinogen. The western United States has particularly arsenic-rich geological formations, but elevated levels have been found in 48 states. Arsenic is tasteless and odorless.
EPA limit: 10 ppb
City Water Reports in Texas
Tap water quality pages for Texas cities — violations, PFAS records, utility profiles, and official source links.
Independent Water Testing
Find a certified lab in Texas
Utility compliance records show what water systems report to the EPA. An independent test from a certified laboratory confirms what's actually in your tap water. Texas labs can test for PFAS, lead, nitrates, bacteria, and dozens of other contaminants.
Explore Water Quality in Texas
Quail Valley Utility District
Violation history, PFAS records, and official source links
New Caney Mud
Violation history, PFAS records, and official source links
City of Dumas
Violation history, PFAS records, and official source links
PFAS monitoring records — Texas
1117 water systems in Texas with EPA UCMR 5 records
Active drinking water violations
8 open health-based violations on record — view official EPA SDWIS data
Lead in Texas drinking water
State-specific lead data, violation utilities, and testing guidance
PFAS in Texas drinking water
State-specific PFAS data, MCL context, and treatment options
Certified water testing labs in Texas
Labs certified for PFAS (EPA 533/537.1), lead, and bacteria testing
Water treatment options
Reverse osmosis, activated carbon, and filtration guides with cost ranges
Data sources and methodology
How WaterUtilityReport.com sources and validates official EPA data
Common Questions About Texas Drinking Water
Does Texas drinking water have PFAS?
1117 Texas water systems have EPA UCMR 5 PFAS monitoring records (2023–2025)
Which Texas water utilities have open violations?
8 systems have open health-based violations in EPA SDWIS — search for your utility
How do I test my water in Texas?
State-certified labs for PFAS (EPA 533/537.1), lead, nitrate, and bacteria testing
What treatment removes PFAS from TX tap water?
Reverse osmosis removes PFAS, lead, arsenic, and nitrates — cost, maintenance, and NSF certification explained
What do Texas PFAS records tell me about my water?
EPA limits, health context, and what UCMR 5 detection above MRL means for your water
How is Texas water quality data sourced here?
EPA SDWIS violations, UCMR 5 PFAS records, and CCR data — sources, accuracy notes, and limitations
Texas Water FAQs
Data sources: Utility compliance and violation data from EPA SDWIS (Safe Drinking Water Information System). PFAS monitoring records from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule 5, 2023–2025). Contaminant data from EPA and ATSDR public references. This page summarizes public records — it is not a compliance determination. Methodology →
Last updated: 2025-01-10