Armstrong County, PA · PWSID PA5030024
Mahoning TWP Muni Auth lead service lines
11 lead or galvanized lines to replace
Mahoning TWP Muni Auth reported 0 lead and 11 galvanized-requiring-replacement service lines out of 360 in its inventory. That's about 1 in 33 lines. Another 324 (90%) are still listed as unknown material.
Ranks #216 of 399 Pennsylvania systems with confirmed lead lines, and #4,463 nationally.
3.1% of Mahoning TWP Muni Auth's service lines are lead or galvanized requiring replacement. That's about the same as the Pennsylvania average (2.9%) and about the same as the national average (3.1%).
- Lead 0%
- Galvanized (replace) 3.1%
- Unknown 90%
- Non-lead 6.9%
Total service lines reported: 360. Reported all required service line types. Population served: 900; 350 connections.
The most recent lead sampling period in EPA data (starting 01-JUL-1996) did not exceed the 15 ppb action level. Results are a 90th percentile across sampled homes, so individual homes can still be higher.
Progress since 2025 Q1
Reported lead and galvanized-requiring-replacement lines went from 0 in 2025 Q1 to 11 in 2026 Q3: up 11. Lines of unknown material went from 0 to 324, up 324.
Quarterly counts reported to EPA. A drop usually means lines were replaced or confirmed non-lead; a rise usually means more lines were identified. Replacement progress rankings.
Lead rule violations
EPA's data lists no Lead and Copper Rule violations for Mahoning TWP Muni Auth since 2015. That covers testing, reporting, corrosion control and public notice requirements; it isn't a guarantee about any individual home.
Source: EPA SDWIS violation records for the Lead and Copper Rule.
Where the water comes from
Mahoning TWP Muni Auth's main water source is purchased surface water. It buys treated water from Redbank Valley Mun Auth. The seller treats the water, including corrosion control that keeps lead from dissolving out of pipes, while Mahoning TWP Muni Auth is responsible for its own service line inventory and replacement program.
Source: EPA SDWIS water system and facility records.
Check your own address
These counts cover the whole system. To see whether your line is lead, use the utility's address-level inventory. Utilities had to prepare one by October 16, 2024 and make it publicly accessible; systems serving more than 50,000 people must post it online.
No map yet? Do the 2-minute scratch and magnet test on the pipe where water enters your home.
Protect your drinking water now
If your line is lead, galvanized or unknown, filter water for drinking, cooking and baby formula. Use a filter certified to NSF/ANSI 53 for lead. Run cold water for a few minutes after it sits for hours, and never use hot tap water for cooking.
How to pick a lead-certified filter · How to test your water for lead
Getting the line replaced
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Mahoning TWP Muni Auth whether it replaces the private side for free or with a cost share before you hire anyone. If you want it done sooner, or your utility doesn't cover your side, a licensed plumber can quote it. What replacement costs.
County pages: Lead pipes in Armstrong County
ZIP codes served
ZIP codes whose center falls inside Mahoning TWP Muni Auth's mapped service area (EPA service area boundaries). Neighboring utilities may serve parts of the same ZIP.
16253
Other water systems nearby
| System | Lead + galv. | Unknown |
|---|---|---|
| Kittanning Suburb JT Water Aut | 0 | 1,238 |
| Buffalo TWP Mun Auth Freeport | 25 | 788 |
| PA American Water Kittanning | 23 | 1,964 |
| Ford City Muni Water Works | 36 | 1,579 |
| West Kittanning Muni Auth | 0 | 626 |
| Worthington West Franklin Jma | 0 | 273 |
| Rural Valley Water Works | 8 | 3 |
| Dayton Muni Water Dept | 2 | 0 |
Check another water system
Questions
Does Mahoning TWP Muni Auth have lead pipes?
Yes. Mahoning TWP Muni Auth reported 0 lead service lines and 11 galvanized lines that must be replaced, out of 360 total. 324 more are of unknown material.
How do I check if my home's service line is lead?
Look up your address on Mahoning TWP Muni Auth's official service line inventory, which utilities must make publicly available. You can also scratch the pipe where it enters your home: lead is soft, dull gray, scratches to shiny silver and does not attract a magnet.
When will Mahoning TWP Muni Auth replace lead service lines?
Under EPA's Lead and Copper Rule Improvements, most systems must replace lead and galvanized-requiring-replacement lines by December 31, 2037, starting from November 1, 2027. The rule is being challenged in court, so dates could change. Many utilities run free or cost-share programs now.
Has Mahoning TWP Muni Auth had lead violations?
EPA's data shows no Lead and Copper Rule violations since 2015 for Mahoning TWP Muni Auth.
Which water filters remove lead?
Use a filter certified to NSF/ANSI Standard 53 for lead reduction, or NSF/ANSI 58 for reverse osmosis. Check the certification on NSF's listings, not just the box.
Embed or cite this data
Local news sites, blogs and community groups can embed this card. It updates when EPA releases new data.
Citation: Lead Pipe Map, "Mahoning TWP Muni Auth lead service lines," https://leadpipemap.com/pa/mahoning-twp-muni-auth/. Source: EPA SDWIS service line inventory, 2026 Q3. Download the full dataset on the data page.