Illinois · population 24,308
Lead pipes in Westmont, IL
245 lead or galvanized lines to replace
Most of Westmont (population 24,308) gets its water from Westmont. That system reported 137 lead and 108 galvanized-requiring-replacement service lines out of 6,403, with 184 more of unknown material.
3.8% of Westmont's service lines are lead or galvanized requiring replacement, lower than the Illinois average (17%) and about the same as the national average (3.1%).
- Lead 2.1%
- Galvanized (replace) 1.7%
- Unknown 2.9%
- Non-lead 93%
Latest lead test for Westmont (2026): 8.9 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 Westmont.
Water systems serving Westmont
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| WestmontMain system | 137 | 108 | 184 | 3.8% |
| Clarendon HillsServes nearby areas | 145 | 15 | 0 | 5.8% |
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 Westmont
The counts above cover the whole water system. To see whether your line is lead, look up your address on Westmont'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
- Clarendon Hills160 lead + galv. lines
- Hinsdale183 lead + galv. lines
- Willowbrook1,516 unknown
- Downers Grove1,466 lead + galv. lines
- Oak Brook9 lead + galv. lines
- Darien1,407 unknown
- Western Springs414 lead + galv. lines
- Oakbrook Terraceno lead reported
Check another water system
Questions
Does Westmont, IL have lead pipes?
Yes. Westmont, which serves Westmont, reported 137 lead and 108 galvanized-requiring-replacement service lines, plus 184 of unknown material.
Who supplies water to Westmont?
EPA's service area maps place most of Westmont in Westmont's service area (PWSID IL0430950). Clarendon Hills also serves parts of the city or nearby areas.
How do I check whether my Westmont home has a lead service line?
Search your address on Westmont'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 Westmont 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 Westmont whether your street is scheduled and whether it covers the private side.