Pennsylvania · population 4,072
Lead pipes in Monongahela, PA
6,070 lead or galvanized lines to replace
Most of Monongahela (population 4,072) gets its water from PA Amer Water Co-Pittsburgh. That system reported 4,290 lead and 1,780 galvanized-requiring-replacement service lines out of 230,084, with 207,101 more of unknown material.
2.6% of PA Amer Water Co-Pittsburgh's service lines are lead or galvanized requiring replacement, about the same as the Pennsylvania average (2.9%) and about the same as the national average (3.1%).
- Lead 1.9%
- Galvanized (replace) 0.8%
- Unknown 90%
- Non-lead 7.4%
Latest lead test for PA Amer Water Co-Pittsburgh (Jun 2025–Sep 2025): 4 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for PA Amer Water Co-Pittsburgh.
Water systems serving Monongahela
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| PA Amer Water Co-PittsburghMain system | 4,290 | 1,780 | 207,101 | 2.6% |
| Mawc Yough PlantServes nearby areas | 135 | 114 | 889 | 0.5% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in Monongahela
The counts above cover the whole water system. To see whether your line is lead, look up your address on PA Amer Water Co-Pittsburgh's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- New Eagle6,070 lead + galv. lines
- North Charleroi11,588 unknown
- Donora11,588 unknown
- Monessen11,588 unknown
- Charleroi11,588 unknown
- North Belle Vernonno lead reported
- Speers11,588 unknown
- Elizabeth6,070 lead + galv. lines
Check another water system
Questions
Does Monongahela, PA have lead pipes?
Yes. PA Amer Water Co-Pittsburgh, which serves Monongahela, reported 4,290 lead and 1,780 galvanized-requiring-replacement service lines, plus 207,101 of unknown material.
Who supplies water to Monongahela?
EPA's service area maps place most of Monongahela in PA Amer Water Co-Pittsburgh's service area (PWSID PA5020039). Mawc Yough Plant also serves parts of the city or nearby areas.
How do I check whether my Monongahela home has a lead service line?
Search your address on PA Amer Water Co-Pittsburgh's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in Monongahela be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask PA Amer Water Co-Pittsburgh whether your street is scheduled and whether it covers the private side.