Is La Porte, 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 la Porte. 3 PFAS were detected below the limits.
City of la Porte supplies La Porte (36,569 people).
Water system
City of la Porte
36,569 people · Purchased surface water · EPA ID TX1010018
Buys treated water from City of Houston.
| 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: 2.35 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.
La Porte 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 La Porte city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Deer Park 4 mi City of Deer Park | None above limits | 0 ppb |
| Pasadena 6 mi City of Pasadena | None above limits | 3.72 ppb |
| Baytown 8 mi City of Baytown | Above limit | 2.1 ppb |
| League City 13 mi City of League City | None above limits | 3 ppb |
| Friendswood 14 mi City of Friendswood | None above limits | 4.61 ppb |
| Pearland 18 mi City of Pearland | None above limits | 2.1 ppb |
La Porte ZIP codes (1)
- 77571
Questions
Is La Porte tap water safe to drink?
City of la Porte 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 La Porte, TX?
City of la Porte, which serves 36,569 people.
Does La Porte tap water have PFAS?
City of la Porte had 3 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.
Do La Porte homes have lead pipes?
Census estimates put 43% of La Porte 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 la Porte'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.