Michigan · population 12,219
Lead pipes in South Lyon, MI
40 lead or galvanized lines to replace
Most of South Lyon (population 12,219) gets its water from City of South Lyon. That system reported 2 lead and 38 galvanized-requiring-replacement service lines out of 3,730, with 457 more of unknown material.
1.1% of City of South Lyon's service lines are lead or galvanized requiring replacement, lower than the Michigan average (9.8%) and lower than the national average (3.1%).
- Lead <0.1%
- Galvanized (replace) 1.0%
- Unknown 12%
- Non-lead 87%
Latest lead test for City of South Lyon (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 City of South Lyon.
Water systems serving South Lyon
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| City of South LyonMain system | 2 | 38 | 457 | 1.1% |
| Lyon TownshipServes nearby areas | 3 | 0 | 67 | <0.1% |
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 South Lyon
The counts above cover the whole water system. To see whether your line is lead, look up your address on City of South Lyon'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
- Wixom4 lead + galv. lines
- Novino lead reported
- Northvilleno lead reported
- Milford84 lead + galv. lines
- Walled Lakeno lead reported
- Wolverine Lakeno lead reported
- Plymouth11 lead + galv. lines
- Ann Arbor471 lead + galv. lines
Check another water system
Questions
Does South Lyon, MI have lead pipes?
Yes. City of South Lyon, which serves South Lyon, reported 2 lead and 38 galvanized-requiring-replacement service lines, plus 457 of unknown material.
Who supplies water to South Lyon?
EPA's service area maps place most of South Lyon in City of South Lyon's service area (PWSID MI0006110). Lyon Township also serves parts of the city or nearby areas.
How do I check whether my South Lyon home has a lead service line?
Search your address on City of South Lyon'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 South Lyon 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 City of South Lyon whether your street is scheduled and whether it covers the private side.