Pennsylvania · population 17,853
Lead pipes in Johnstown, PA
4,378 lead or galvanized lines to replace
Most of Johnstown (population 17,853) gets its water from Greater Johnstown WA Riverside. That system reported 4,345 lead and 33 galvanized-requiring-replacement service lines out of 21,397, with 15,186 more of unknown material.
20% of Greater Johnstown WA Riverside's service lines are lead or galvanized requiring replacement, higher than the Pennsylvania average (2.9%) and higher than the national average (3.1%).
- Lead 20%
- Galvanized (replace) 0.2%
- Unknown 71%
- Non-lead 8.6%
Latest lead test for Greater Johnstown WA Riverside (Jun 2025–Sep 2025): 5 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists 1 Lead and Copper Rule violation since 2015 for Greater Johnstown WA Riverside.
Water systems serving Johnstown
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Greater Johnstown WA RiversideMain system | 4,345 | 33 | 15,186 | 20% |
| Southwestern Cambria Cnty AuthServes nearby areas | 0 | 0 | 1 | 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 Johnstown
The counts above cover the whole water system. To see whether your line is lead, look up your address on Greater Johnstown WA Riverside'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
Check another water system
Questions
Does Johnstown, PA have lead pipes?
Yes. Greater Johnstown WA Riverside, which serves Johnstown, reported 4,345 lead and 33 galvanized-requiring-replacement service lines, plus 15,186 of unknown material.
Who supplies water to Johnstown?
EPA's service area maps place most of Johnstown in Greater Johnstown WA Riverside's service area (PWSID PA4110034). Southwestern Cambria Cnty Auth also serves parts of the city or nearby areas.
How do I check whether my Johnstown home has a lead service line?
Search your address on Greater Johnstown WA Riverside'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 Johnstown 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 Greater Johnstown WA Riverside whether your street is scheduled and whether it covers the private side.