Illinois · population 9,371
Lead pipes in Flossmoor, IL
373 lead or galvanized lines to replace
Most of Flossmoor (population 9,371) gets its water from Flossmoor. That system reported 373 lead and 0 galvanized-requiring-replacement service lines out of 3,529, with 199 more of unknown material.
11% of Flossmoor's service lines are lead or galvanized requiring replacement, lower than the Illinois average (17%) and higher than the national average (3.1%).
- Lead 11%
- Galvanized (replace) 0%
- Unknown 5.6%
- Non-lead 84%
Latest lead test for Flossmoor (Jul 2025–Dec 2025): 5.4 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 Flossmoor.
Water systems serving Flossmoor
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| FlossmoorMain system | 373 | 0 | 199 | 11% |
| Olympia FieldsServes nearby areas | 205 | 0 | 269 | 11% |
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 Flossmoor
The counts above cover the whole water system. To see whether your line is lead, look up your address on Flossmoor'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
- Olympia Fields205 lead + galv. lines
- Homewood3,759 lead + galv. lines
- Hazel Crest1,396 lead + galv. lines
- Country Club Hillsno lead reported
- East Hazel Crestno lead reported
- Chicago Heights2,812 lead + galv. lines
- Matteson580 lead + galv. lines
- Glenwoodno lead reported
Check another water system
Questions
Does Flossmoor, IL have lead pipes?
Yes. Flossmoor, which serves Flossmoor, reported 373 lead and 0 galvanized-requiring-replacement service lines, plus 199 of unknown material.
Who supplies water to Flossmoor?
EPA's service area maps place most of Flossmoor in Flossmoor's service area (PWSID IL0310870). Olympia Fields also serves parts of the city or nearby areas.
How do I check whether my Flossmoor home has a lead service line?
Search your address on Flossmoor'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 Flossmoor 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 Flossmoor whether your street is scheduled and whether it covers the private side.