Lead pipes in Lasalle County, Illinois
How many lead pipes are in Lasalle County, IL?
Water systems based in Lasalle County reported 826 lead service lines, 305 galvanized lines that need replacing and 18,980 lines of unknown material to EPA (Q3 2026). Oglesby has the most, with 300 lead and galvanized lines.
Who pays in Illinois
Illinois was one of the first states to require full replacement of every lead service line. Each water supply must file a final replacement plan by April 15, 2027, then replace a set share of its lead lines every year, on a timeline of 15 to 50 years depending on how many it has. A utility may bill the owner for the private side only if it is not using state or federal money for that work, and an owner can sign a waiver to decline private-side replacement. Illinois EPA lends to water systems and forgives part of the loan in lower-income communities, which is why many Illinois programs are free.
Every Lasalle County water system with lead lines
Systems are grouped by the county EPA lists as their main service area. Some serve towns in neighboring counties too.
| Water system | Lead | Galv. | Unknown | Program |
|---|---|---|---|---|
| Oglesby Oglesby | 300 | 0 | 750 | Not confirmed |
| La Salle La Salle | 146 | 53 | 3,214 | Not confirmed |
| Peru Peru | 165 | 13 | 2,784 | Not confirmed |
| Streator IL American-Streator | 26 | 136 | 6,646 | Not confirmed |
| Mendota Mendota | 34 | 69 | 1,315 | Not confirmed |
| Ottawa Ottawa | 59 | 0 | 1,019 | Not confirmed |
| Marseilles Marseilles | 56 | 0 | 697 | Not confirmed |
| Grand Ridge Grand Ridge | 0 | 22 | 3 | Not confirmed |
| North Utica North Utica | 22 | 0 | 440 | Not confirmed |
| Cedar Point Cedar Point Water Company | 15 | 0 | 0 | Not confirmed |
| Lostant Lostant | 1 | 12 | 206 | Not confirmed |
| Earlville Earlville | 2 | 0 | 0 | Not confirmed |
| Lake Holiday IL American-Lake Holiday | 0 | 0 | 1,906 | Not confirmed |
Systems over the new 10 ppb lead action level
Grand Ridge (31.6 ppb, 2026-01 to 2026-06); North Utica (14 ppb, 2026-01 to 2026-06). See all systems over 10 ppb.
Common questions
How many lead pipes are in Lasalle County, IL?
Water systems based in Lasalle County reported 826 lead service lines, 305 galvanized lines that need replacing and 18,980 lines of unknown material to EPA (Q3 2026). Oglesby has the most, with 300 lead and galvanized lines.
Who pays to replace lead service lines in Lasalle County?
It depends on your water utility. Illinois was one of the first states to require full replacement of every lead service line. We have not confirmed a homeowner program for a utility in this county yet, so ask your utility before you hire a contractor.
How do I find out if my house has a lead service line?
Look up your address on your water utility's service line inventory map, or check the pipe where it enters your home: lead is dull gray, soft, scratches to shiny silver, and a magnet won't stick. See our step-by-step guide.
Other Illinois counties
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