Is Ennis, TX tap water safe?
Data: U.S. EPA · How we read the data · How we check it
Summary
No federal limits exceeded in EPA data for City of Ennis. 4 PFAS were detected below the limits.
City of Ennis supplies Ennis (24,891 people).
Water system
City of Ennis
24,891 people · Surface water · EPA ID TX0700001
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Not detected | – | 4 ppt |
| PFHxS Not detected | – | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.
Lead: 0 ppb at the 90th percentile (Dec 2025, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0
Across Texas, 28 of 1,130 water systems EPA tested had PFAS above a 2024 federal limit, and 13 systems were above the lead action level in results from the last five years. Texas results.
Ennis homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Ennis city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Waxahachie 13 mi City of Waxahachie | None above limits | 0 ppb |
| Corsicana 19 mi City of Corsicana Public Water System | None above limits | 0 ppb |
| Lancaster 20 mi Rockett Special Utility District | None above limits | 0 ppb |
| Midlothian 23 mi Johnson County Special Utility District | None above limits | 4.24 ppb |
| DeSoto 23 mi City of Desoto | None above limits | 0 ppb |
| Cedar Hill 26 mi City of Cedar Hill | None above limits | 0 ppb |
Ennis ZIP codes (1)
- 75119
Questions
Is Ennis tap water safe to drink?
City of Ennis has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.
Who supplies water in Ennis, TX?
City of Ennis, which serves 24,891 people.
Does Ennis tap water have PFAS?
City of Ennis had 4 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.
Do Ennis homes have lead pipes?
Census estimates put 37% of Ennis homes as built before 1980 (Texas: 33%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. City of Ennis's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.