Pennsylvania · population 4,150
Lead pipes in Mount Pleasant, PA
249 lead or galvanized lines to replace
Most of Mount Pleasant (population 4,150) gets its water from Mawc Yough Plant. That system reported 135 lead and 114 galvanized-requiring-replacement service lines out of 53,390, with 889 more of unknown material.
0.5% of Mawc Yough Plant's service lines are lead or galvanized requiring replacement, lower than the Pennsylvania average (2.9%) and lower than the national average (3.1%).
- Lead 0.3%
- Galvanized (replace) 0.2%
- Unknown 1.7%
- Non-lead 98%
Latest lead test for Mawc Yough Plant (Jun 2025–Sep 2025): not detected 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 Mawc Yough Plant.
Water systems serving Mount Pleasant
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Mawc Yough PlantMain system | 135 | 114 | 889 | 0.5% |
| Pleasant Valley Water AuthServes nearby areas | 0 | 0 | 1,504 | 0% |
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 Mount Pleasant
The counts above cover the whole water system. To see whether your line is lead, look up your address on Mawc Yough Plant'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
- Scottdale249 lead + galv. lines
- New Stanton249 lead + galv. lines
- Youngwood249 lead + galv. lines
- South Greensburg249 lead + galv. lines
- Connellsville54 lead + galv. lines
- Southwest Greensburg2,680 lead + galv. lines
- South Connellsville54 lead + galv. lines
- Greensburg2,680 lead + galv. lines
Check another water system
Questions
Does Mount Pleasant, PA have lead pipes?
Yes. Mawc Yough Plant, which serves Mount Pleasant, reported 135 lead and 114 galvanized-requiring-replacement service lines, plus 889 of unknown material.
Who supplies water to Mount Pleasant?
EPA's service area maps place most of Mount Pleasant in Mawc Yough Plant's service area (PWSID PA5260036). Pleasant Valley Water Auth also serves parts of the city or nearby areas.
How do I check whether my Mount Pleasant home has a lead service line?
Search your address on Mawc Yough Plant'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 Mount Pleasant 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 Mawc Yough Plant whether your street is scheduled and whether it covers the private side.