Is Mission, 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 Mission. 1 PFAS were detected below the limits.
4 public water systems serve parts of Mission. The largest, City of Mission, serves 77,058 people. Your water bill names your system.
Largest system
City of Mission
77,058 people · Surface water · EPA ID TX1080008
Buys treated water from Agua Special Utility District, McAllen Public Utility.
| 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: 1.83 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: 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.
Mission 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 Mission city (tables B25034, B25003). Estimates for small places have a margin of error.
Other water systems serving Mission
- Sharyland Water Supply Corporation68,562 people · Surface water · Texas · reported ZIPs herePFOA detectedAlso: PFOS detected · PFHxS detected · Lithium above screening level · 1 health-based violation since 2016
- Agua Special Utility District53,796 people · Surface water · Texas · reported ZIPs hereLithium above screening levelAlso: 1 health-based violation since 2016
- Hidalgo County Municipal Utility District 18,420 people · Surface water · Texas · reported ZIPs hereLithium above screening level
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| McAllen 5 mi McAllen Public Utility | None above limits | 2.3 ppb |
| Pharr 9 mi City of Pharr | None above limits | 1.09 ppb |
| San Juan 11 mi North Alamo Water Supply Corporation | None above limits | 0.32 ppb |
| Edinburg 13 mi City of Edinburg | None above limits | 0 ppb |
| Weslaco 21 mi North Alamo Water Supply Corporation | None above limits | 0.32 ppb |
| Harlingen 39 mi Harlingen Water Works System | None above limits | 0 ppb |
Mission ZIP codes (1)
- 78572
Questions
Is Mission tap water safe to drink?
City of Mission 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 Mission, TX?
4 public water systems serve parts of Mission. The largest is City of Mission (77,058 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.
Does Mission tap water have PFAS?
City of Mission had 1 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.
Do Mission homes have lead pipes?
Census estimates put 15% of Mission 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 Mission'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.