Illinois · population 1,674
Lead pipes in Gilman, IL
52 lead or galvanized lines to replace
Most of Gilman (population 1,674) gets its water from Gilman. That system reported 49 lead and 3 galvanized-requiring-replacement service lines out of 930, with 454 more of unknown material.
5.6% of Gilman's service lines are lead or galvanized requiring replacement, lower than the Illinois average (17%) and higher than the national average (3.1%).
- Lead 5.3%
- Galvanized (replace) 0.3%
- Unknown 49%
- Non-lead 46%
Latest lead test for Gilman (Jul 2025–Dec 2025): 2.8 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 Gilman.
Water systems serving Gilman
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 Gilman
The counts above cover the whole water system. To see whether your line is lead, look up your address on Gilman'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 Gilman, IL have lead pipes?
Yes. Gilman, which serves Gilman, reported 49 lead and 3 galvanized-requiring-replacement service lines, plus 454 of unknown material.
Who supplies water to Gilman?
EPA's service area maps place most of Gilman in Gilman's service area (PWSID IL0750450). Onarga also serves parts of the city or nearby areas.
How do I check whether my Gilman home has a lead service line?
Search your address on Gilman'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 Gilman 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 Gilman whether your street is scheduled and whether it covers the private side.