Illinois · population 1,114
Lead pipes in Third Lake, IL
2 lines still unidentified
Most of Third Lake (population 1,114) gets its water from Lake Villa. It reported no confirmed lead service lines, but 2 of 2,590 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of Lake Villa'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 <0.1%
- Non-lead 100%
Latest lead test for Lake Villa (Jan 2026–Dec 2028): 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 Lake Villa.
Water systems serving Third Lake
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Lake VillaMain system | 0 | 0 | 2 | 0% |
| GurneeServes 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 Third Lake
The counts above cover the whole water system. To see whether your line is lead, look up your address on Lake Villa'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
- Grayslake175 lead + galv. lines
- Lindenhurst439 unknown
- Gurneeno lead reported
- Round Lake Beachno lead reported
- Hainesvilleno lead reported
- Round Lake Parkno lead reported
- Lake Villa2 unknown
- Round Lake Heightsno lead reported
Check another water system
Questions
Does Third Lake, IL have lead pipes?
None are confirmed, but Lake Villa still lists 2 service lines as unknown material.
Who supplies water to Third Lake?
EPA's service area maps place most of Third Lake in Lake Villa's service area (PWSID IL0970840). Gurnee also serves parts of the city or nearby areas.
How do I check whether my Third Lake home has a lead service line?
Search your address on Lake Villa'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 Third 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 Lake Villa whether your street is scheduled and whether it covers the private side.