Is Southlake, 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 Southlake. 6 PFAS were detected below the limits.
City of Southlake supplies Southlake (31,576 people).
Water system
City of Southlake
31,576 people · Purchased surface water · EPA ID TX2200075
Buys treated water from City of Fort Worth, City of Grapevine.
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS One sample above limit | 2.02 ppt | 4 ppt |
| PFHxS Detected, below limit | 6.8 ppt | 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: 2.89 ppb at the 90th percentile (Nov 2026, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 1
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.
Southlake homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Southlake city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Colleyville 4 mi City of Colleyville | None above limits | 3.1 ppb |
| Grapevine 4 mi City of Grapevine | None above limits | 1.7 ppb |
| Keller 5 mi City of Keller | None above limits | 2.16 ppb |
| Flower Mound 6 mi Town of Flower Mound | None above limits | 1.6 ppb |
| Bedford 8 mi City of Bedford | None above limits | 0.8 ppb |
| North Richland Hills 8 mi City of North Richland Hills | None above limits | 1.9 ppb |
Southlake ZIP codes (1)
- 76092
Questions
Is Southlake tap water safe to drink?
City of Southlake had 1 health-based violation 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 Southlake, TX?
City of Southlake, which serves 31,576 people.
Does Southlake tap water have PFAS?
City of Southlake had 6 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.
Do Southlake homes have lead pipes?
Census estimates put 5% of Southlake 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 Southlake'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.