Dallas Water Quality
Texas
According to EPA SDWIS, Dallas, Texas is served by 46 community water systems covering about 1,442,261 people. The same extract lists 137 health-based violation records, most recently coded 1038 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Dallas, Texas is delivered through 46 EPA-regulated community water systems serving an estimated 1,442,261 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 137 violation records across the 46 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 9 distinct EPA contaminant codes: Nitrate-Nitrite, TTHM, Lead and Copper Rule, LEAD AND COPPER RULE REVISIONS, Surface Water Treatment Rule and 4 others. 63 TRI-reporting industrial facilities are also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Texas drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| DALLAS WATER UTILITY | 1,356,479 | 0 | Clean |
| CITY OF UNIVERSITY PARK | 25,617 | 0 | Clean |
| TOWN OF HIGHLAND PARK | 8,959 | 0 | Clean |
| KAUFMAN COUNTY FWSD 4A | 7,317 | 3 | Health |
| KAUFMAN COUNTY MUD 14 | 6,456 | 0 | Clean |
| FRISCO WEST WCID | 5,805 | 0 | Clean |
| CITY OF COCKRELL HILL | 3,855 | 0 | Clean |
| KAUFMAN COUNTY MUD 11 | 3,819 | 0 | Clean |
| KAUFMAN COUNTY MUD 10 | 3,771 | 0 | Clean |
| KAUFMAN COUNTY FWSD 1D | 3,324 | 0 | Clean |
| KAUFMAN COUNTY FWSD 1B | 2,046 | 0 | Clean |
| KAUFMAN COUNTY FWSD 4B | 1,830 | 3 | Health |
| KAUFMAN COUNTY MUD 9 | 1,473 | 0 | Clean |
| KAUFMAN COUNTY MUD 12 | 1,350 | 0 | Clean |
| FLORIDA CAMP INN | 1,150 | 0 | Clean |
| LAJITAS ON THE RIO GRANDE | 942 | 0 | Clean |
| CRESSON CROSSROADS MUD 2 | 888 | 10 | Health |
| ROLLING V RANCH WCID 1 OF WISE COUNTY | 795 | 0 | Clean |
| ROLLING V RANCH WCID 2 | 774 | 0 | Clean |
| LAKE VIEW MGMT & DEVELOPMENT DIST LONG C | 684 | 0 | Clean |
| HILLSIDE VILLAGE | 650 | 0 | Clean |
| NEW FAIRVIEW MUD 1 | 537 | 0 | Clean |
| ROLLING HILLS MOBILE HOME PARK | 500 | 0 | Clean |
| HIDEAWAY HILLS | 470 | 0 | Clean |
| CANAAN COMMUNITY MHP | 420 | 0 | Clean |
| HARVEST SQUARE MOBILE HOME PARK | 345 | 0 | Clean |
| CLEARWATER DISTRIBUTION | 303 | 60 | Health |
| D BAR B MOBILE HOME RANCH | 267 | 42 | Health |
| BIXBY ESTATES | 225 | 1 | Health |
| SUNHAVEN MOBILE HOME PARK | 160 | 0 | Clean |
| DALLAS COUNTY MUD 4 | 150 | 0 | Clean |
| COUNTRY OAKS MOBILE HOME PARK | 146 | 2 | Health |
| EASTWOOD MOBILE HOME COURT | 140 | 0 | Clean |
| HILLCREST NORTH MUD | 114 | 0 | Clean |
| SNAKE RIVER MOBILE HOME PARK | 100 | 9 | Health |
| LANDING AT HICKORY RIDGE | 87 | 2 | Health |
| LONE OAK CABINS | 78 | 4 | Health |
| EAGLE RIDGE MUD | 57 | 0 | Clean |
| WALDEN POND FWSD OF KAUFMAN COUNTY | 55 | 0 | Clean |
| CRESSON CROSSROADS MUD 2 KELLY RANCH | 45 | 0 | Clean |
| TIERRA BLANCA MUD 1 | 45 | 0 | Clean |
| THE HOMESTEAD CHINOOK RIDGE | 33 | 0 | Clean |
| PLURIS ALABAMA LLC, | 0 | 0 | Clean |
| DALLAS COUNTY PARK CITIES MUD | 0 | 1 | Health |
| KAUFMAN COUNTY FWSD 1A | 0 | 0 | Clean |
| ROLLING V RANCH WCID 3 OF WISE COUNTY | 0 | 0 | Clean |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| SNAKE RIVER MOBILE HOME PARK | Nitrate-Nitrite | 2025-10-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2025-10-01 |
| SNAKE RIVER MOBILE HOME PARK | Nitrate-Nitrite | 2025-07-01 |
| SNAKE RIVER MOBILE HOME PARK | Nitrate-Nitrite | 2025-07-01 |
| SNAKE RIVER MOBILE HOME PARK | Lead and Copper Rule | 2025-03-01 |
| COUNTRY OAKS MOBILE HOME PARK | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| KAUFMAN COUNTY FWSD 4B | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| KAUFMAN COUNTY FWSD 4B | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| KAUFMAN COUNTY FWSD 4B | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| KAUFMAN COUNTY FWSD 4A | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| KAUFMAN COUNTY FWSD 4A | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| KAUFMAN COUNTY FWSD 4A | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| DALLAS COUNTY PARK CITIES MUD | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| LANDING AT HICKORY RIDGE | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| LANDING AT HICKORY RIDGE | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| BIXBY ESTATES | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-10-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-10-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-10-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-07-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-07-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-07-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-07-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-04-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-04-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-04-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-04-01 |
| SNAKE RIVER MOBILE HOME PARK | Surface Water Treatment Rule | 2024-02-01 |
| SNAKE RIVER MOBILE HOME PARK | Surface Water Treatment Rule | 2024-02-01 |
| SNAKE RIVER MOBILE HOME PARK | Surface Water Treatment Rule | 2024-02-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-01-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-01-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2024-01-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-10-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-10-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-10-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-10-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-07-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-07-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-07-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-07-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-07-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-07-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-04-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-04-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-04-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-04-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-04-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-04-01 |
| CLEARWATER DISTRIBUTION | TTHM | 2023-04-01 |
What are Dallas's health-based records for?
Dallas's health-based violation records carry 8 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Tthm | 60 | 1 |
| Long Term 2 Enhanced Surface Water Treatment Rule | 40 | 1 |
| Lead and Copper Rule | 15 | 3 |
| Lead and Copper Rule Revisions | 11 | 6 |
| Nitrate-Nitrite | 4 | 1 |
| Surface Water Treatment Rule | 3 | 1 |
| Nitrate | 2 | 1 |
| Groundwater Rule | 1 | 1 |
TRI Facilities in Dallas
| Facility | Total Releases |
|---|---|
| Texas Instruments Inc | 265.9K lbs |
| Whitewave Foods Dallas | 214.4K lbs |
| Master-Halco | 193.2K lbs |
| Bmic LLC | 158.6K lbs |
| Drs Nis LLC | 104.6K lbs |
| Hiland Dairy Foods LLC | 59.0K lbs |
| Hensley Industries Inc | 41.9K lbs |
| Highline Warren - Dallas | 37.6K lbs |
| Jones-Blair Co | 26.9K lbs |
| Versum Materials US LLC | 10.4K lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Dallas, Texas? ▼
How many water violations does Dallas have in this EPA extract? ▼
What contaminants were found in Dallas water? ▼
How many water systems serve Dallas? ▼
Where does Dallas get its drinking water? ▼
Are there pollution sources near Dallas? ▼
How does Dallas compare in Texas?
Of the 1,232 Texas places with at least one community water system on file, Dallas ranks #5 by number of systems (46).
Either side of it: Cypress (146), Conroe (60), Magnolia (46), Livingston (45)
About This Data
Figures here are the current EPA SDWIS extract joined to the 46 community water systems whose service area lists Dallas, ranked against the 1,232 Texas places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.