Pennsylvania · population 8,364
Lead pipes in Mount Joy, PA
8 lead or galvanized lines to replace
Most of Mount Joy (population 8,364) gets its water from Mt Joy Boro Auth. That system reported 0 lead and 8 galvanized-requiring-replacement service lines out of 5,198, with 585 more of unknown material.
0.2% of Mt Joy Boro Auth'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%
- Galvanized (replace) 0.2%
- Unknown 11%
- Non-lead 89%
Latest lead test for Mt Joy Boro Auth (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 Mt Joy Boro Auth.
Water systems serving Mount Joy
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Mt Joy Boro AuthMain system | 0 | 8 | 585 | 0.2% |
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 Joy
The counts above cover the whole water system. To see whether your line is lead, look up your address on Mt Joy Boro Auth'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
- Marietta9 lead + galv. lines
- Columbia9 lead + galv. lines
- Elizabethtown64 lead + galv. lines
- Mountville9 lead + galv. lines
- Wrightsville4 lead + galv. lines
- Manheim37 lead + galv. lines
- East Petersburg1,446 unknown
- Hallam120 lead + galv. lines
Check another water system
Questions
Does Mount Joy, PA have lead pipes?
Yes. Mt Joy Boro Auth, which serves Mount Joy, reported 0 lead and 8 galvanized-requiring-replacement service lines, plus 585 of unknown material.
Who supplies water to Mount Joy?
EPA's service area maps place most of Mount Joy in Mt Joy Boro Auth's service area (PWSID PA7360091).
How do I check whether my Mount Joy home has a lead service line?
Search your address on Mt Joy Boro Auth'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 Joy 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 Mt Joy Boro Auth whether your street is scheduled and whether it covers the private side.