Illinois · population 13,883
Lead pipes in Glen Carbon, IL
65 lines still unidentified
Most of Glen Carbon (population 13,883) gets its water from Glen Carbon. It reported no confirmed lead service lines, but 65 of 5,619 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of Glen Carbon's service lines are lead or galvanized requiring replacement, lower than the Illinois average (17%) and lower than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 0%
- Unknown 1.2%
- Non-lead 99%
Latest lead test for Glen Carbon (Jul 2025–Dec 2025): not detected 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 Glen Carbon.
Water systems serving Glen Carbon
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Glen CarbonMain system | 0 | 0 | 65 | 0% |
| MaryvilleServes nearby areas | 0 | 0 | 0 | 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 Glen Carbon
The counts above cover the whole water system. To see whether your line is lead, look up your address on Glen Carbon'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
- Edwardsville1,118 unknown
- Maryvilleno lead reported
- Pontoon Beach827 lead + galv. lines
- Troyno lead reported
- South Roxana9 lead + galv. lines
- Roxana378 lead + galv. lines
- Collinsville13 lead + galv. lines
- Hartford299 unknown
Check another water system
Questions
Does Glen Carbon, IL have lead pipes?
None are confirmed, but Glen Carbon still lists 65 service lines as unknown material.
Who supplies water to Glen Carbon?
EPA's service area maps place most of Glen Carbon in Glen Carbon's service area (PWSID IL1190300). Maryville also serves parts of the city or nearby areas.
How do I check whether my Glen Carbon home has a lead service line?
Search your address on Glen Carbon'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 Glen Carbon 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 Glen Carbon whether your street is scheduled and whether it covers the private side.