Is Monroeville, PA 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 Wilkinsburg-Penn Joint Water Authority.
2 public water systems serve parts of Monroeville. The largest, Wilkinsburg-Penn Joint Water Authority, serves 125,000 people. Your water bill names your system.
Largest system
Wilkinsburg-Penn Joint Water Authority
125,000 people · Surface water · EPA ID PA5020056
Buys treated water from Monroeville Municipal Authority.
| 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: 9.78 ppb at the 90th percentile (Sep 2025, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 2
Across Pennsylvania, 85 of 360 water systems EPA tested had PFAS above a 2024 federal limit, and 76 systems were above the lead action level in results from the last five years. Pennsylvania results.
Monroeville 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 Monroeville municipality (tables B25034, B25003). Estimates for small places have a margin of error.
Other water systems serving Monroeville
- Monroeville Municipal Authority48,500 people · Purchased surface water · Pennsylvania · reported ZIPs hereTotal trihalomethanes (TTHM) violationAlso: Haloacetic acids (HAA5) violation
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Plum 5 mi Plum Borough Municipal Authority | None above limits | 3.7 ppb |
| North Huntingdon 7 mi Municipal Authority of Westmoreland County – Sweeney Plant | None above limits | 3.48 ppb |
| Pittsburgh 11 mi Pennsylvania American Water – Pittsburgh | None above limits | 4 ppb |
| Shaler 13 mi Pittsburgh Water & Sewer Authority | None above limits | 2 ppb |
| Hempfield 14 mi Municipal Authority of Westmoreland County – Yough Plant | None above limits | 0 ppb |
| Ross 15 mi West View Water Authority | None above limits | 0 ppb |
Monroeville ZIP codes (2)
- 15140
- 15146
Questions
Is Monroeville tap water safe to drink?
Wilkinsburg-Penn Joint Water Authority had 2 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 Monroeville, PA?
2 public water systems serve parts of Monroeville. The largest is Wilkinsburg-Penn Joint Water Authority (125,000 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.
Does Monroeville tap water have PFAS?
None detected above EPA's reporting limits. Wilkinsburg-Penn Joint Water Authority had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.
Do Monroeville homes have lead pipes?
Census estimates put 76% of Monroeville homes as built before 1980 (Pennsylvania: 67%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Wilkinsburg-Penn Joint Water Authority'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.