Illinois · population 3,797
Lead pipes in Dupo, IL
No lead lines reported
Most of Dupo (population 3,797) gets its water from Dupo, which reported 2,082 service lines and no lead, galvanized or unknown lines.
0% of Dupo'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 0%
- Non-lead 100%
Latest lead test for Dupo (Jan 2024–Dec 2026): 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 Dupo.
Water systems serving Dupo
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| DupoMain system | 0 | 0 | 0 | 0% |
| Cahokia HeightsServes 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 Dupo
The counts above cover the whole water system. To see whether your line is lead, look up your address on Dupo'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
- Columbiano lead reported
- Cahokia Heightsno lead reported
- Millstadtno lead reported
- East St. Louis1,100 lead + galv. lines
- Washington Park1,100 lead + galv. lines
- Fairmont1,100 lead + galv. lines
- Venice827 lead + galv. lines
- Belleville1,100 lead + galv. lines
Check another water system
Questions
Does Dupo, IL have lead pipes?
Dupo, which serves Dupo, reported no lead, galvanized or unknown service lines.
Who supplies water to Dupo?
EPA's service area maps place most of Dupo in Dupo's service area (PWSID IL1630350). Cahokia Heights also serves parts of the city or nearby areas.
How do I check whether my Dupo home has a lead service line?
Search your address on Dupo'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 Dupo 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 Dupo whether your street is scheduled and whether it covers the private side.