Illinois · population 41,513
Lead pipes in Crystal Lake, IL
1,422 lines still unidentified
Most of Crystal Lake (population 41,513) gets its water from Crystal Lake. It reported no confirmed lead service lines, but 1,422 of 1,422 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of Crystal Lake'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 100%
- Non-lead 0%
Latest lead test for Crystal Lake (2026): 6.8 ppb 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 Crystal Lake.
Water systems serving Crystal Lake
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Crystal LakeMain system | 0 | 0 | 1,422 | 0% |
| IL American-Walk Up WoodsServes nearby areas | 0 | 0 | 39 | 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 Crystal Lake
The counts above cover the whole water system. To see whether your line is lead, look up your address on Crystal Lake'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
- Lakewoodno lead reported
- Lake in the Hillsno lead reported
- Prairie Grove1,422 unknown
- Cary2 lead + galv. lines
- Oakwood Hills78 unknown
- Algonquinno lead reported
- Bull Valley304 lead + galv. lines
- Fox River Grove563 lead + galv. lines
Check another water system
Questions
Does Crystal Lake, IL have lead pipes?
None are confirmed, but Crystal Lake still lists 1,422 service lines as unknown material.
Who supplies water to Crystal Lake?
EPA's service area maps place most of Crystal Lake in Crystal Lake's service area (PWSID IL1110150). IL American-Walk Up Woods also serves parts of the city or nearby areas.
How do I check whether my Crystal Lake home has a lead service line?
Search your address on Crystal Lake'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 Crystal Lake 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 Crystal Lake whether your street is scheduled and whether it covers the private side.