Lead pipes in McHenry County, Illinois
How many lead pipes are in McHenry County, IL?
Water systems based in McHenry County reported 2,592 lead service lines, 877 galvanized lines that need replacing and 5,523 lines of unknown material to EPA (Q3 2026). Harvard has the most, with 1,305 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 McHenry 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 |
|---|---|---|---|---|
| Harvard Harvard | 1,304 | 1 | 718 | Not confirmed |
| Woodstock Woodstock | 201 | 822 | 565 | Not confirmed |
| Fox River Grove Fox River Grove | 528 | 35 | 0 | Not confirmed |
| McHenry McHenry | 304 | 0 | 0 | Not confirmed |
| Union Union | 97 | 0 | 0 | Not confirmed |
| Richmond Richmond | 93 | 0 | 1 | Not confirmed |
| Marengo Marengo | 37 | 0 | 914 | Not confirmed |
| Hebron Hebron | 20 | 0 | 0 | Not confirmed |
| Huntley Huntley | 8 | 6 | 1 | Not confirmed |
| Crystal Clear Water Co. Aqua Illinois-Crystal Clear Water Co. | 0 | 7 | 203 | Not confirmed |
| Holiday Hills IL American-Holiday Hills | 0 | 3 | 86 | Not confirmed |
| Cary Cary | 0 | 2 | 0 | Not confirmed |
| McHenry Shores Aqua Illinois-McHenry Shores | 0 | 1 | 221 | Not confirmed |
| Crystal Lake Crystal Lake | 0 | 0 | 1,422 | Not confirmed |
| Whispering Hills IL American-Whispering Hills | 0 | 0 | 1,392 | Not confirmed |
Common questions
How many lead pipes are in McHenry County, IL?
Water systems based in McHenry County reported 2,592 lead service lines, 877 galvanized lines that need replacing and 5,523 lines of unknown material to EPA (Q3 2026). Harvard has the most, with 1,305 lead and galvanized lines.
Who pays to replace lead service lines in McHenry 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.
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