Illinois · population 9,584
Lead pipes in Hawthorn Woods, IL
65 lines still unidentified
Most of Hawthorn Woods (population 9,584) gets its water from Aqua Illinois-Hawthorn Woods. It reported no confirmed lead service lines, but 65 of 1,360 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of Aqua Illinois-Hawthorn Woods'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 4.8%
- Non-lead 95%
Latest lead test for Aqua Illinois-Hawthorn Woods (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 Aqua Illinois-Hawthorn Woods.
Water systems serving Hawthorn Woods
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Aqua Illinois-Hawthorn WoodsMain system | 0 | 0 | 65 | 0% |
| Schwermanns 2nd and 3rd WTR BRDServes nearby areas | 0 | 0 | 73 | 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 Hawthorn Woods
The counts above cover the whole water system. To see whether your line is lead, look up your address on Aqua Illinois-Hawthorn Woods'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
- Lake Zurich26 lead + galv. lines
- Mundelein98 lead + galv. lines
- North Barrington26 lead + galv. lines
- Kildeer26 lead + galv. lines
- Long Groveno lead reported
- Wauconda167 lead + galv. lines
- Tower Lakesno lead reported
- Deer Park26 lead + galv. lines
Check another water system
Questions
Does Hawthorn Woods, IL have lead pipes?
None are confirmed, but Aqua Illinois-Hawthorn Woods still lists 65 service lines as unknown material.
Who supplies water to Hawthorn Woods?
EPA's service area maps place most of Hawthorn Woods in Aqua Illinois-Hawthorn Woods's service area (PWSID IL0975040). Schwermanns 2nd and 3rd WTR BRD also serves parts of the city or nearby areas.
How do I check whether my Hawthorn Woods home has a lead service line?
Search your address on Aqua Illinois-Hawthorn Woods'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 Hawthorn Woods 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 Aqua Illinois-Hawthorn Woods whether your street is scheduled and whether it covers the private side.