Illinois · population 26,813
Lead pipes in Oak Forest, IL
5 lead or galvanized lines to replace
Most of Oak Forest (population 26,813) gets its water from Oak Forest. That system reported 5 lead and 0 galvanized-requiring-replacement service lines out of 8,499, with 6,801 more of unknown material.
<0.1% of Oak Forest's service lines are lead or galvanized requiring replacement, lower than the Illinois average (17%) and lower than the national average (3.1%).
- Lead <0.1%
- Galvanized (replace) 0%
- Unknown 80%
- Non-lead 20%
Latest lead test for Oak Forest (2025): not detected at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists 1 Lead and Copper Rule violation since 2015 for Oak Forest.
Water systems serving Oak Forest
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Oak ForestMain system | 5 | 0 | 6,801 | <0.1% |
| Tinley ParkServes 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 Oak Forest
The counts above cover the whole water system. To see whether your line is lead, look up your address on Oak Forest'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
- Midlothian568 lead + galv. lines
- Crestwoodno lead reported
- Markham1,239 lead + galv. lines
- Country Club Hillsno lead reported
- Robbins1,332 lead + galv. lines
- Tinley Parkno lead reported
- Posen1,122 lead + galv. lines
- Hazel Crest1,396 lead + galv. lines
Check another water system
Questions
Does Oak Forest, IL have lead pipes?
Yes. Oak Forest, which serves Oak Forest, reported 5 lead and 0 galvanized-requiring-replacement service lines, plus 6,801 of unknown material.
Who supplies water to Oak Forest?
EPA's service area maps place most of Oak Forest in Oak Forest's service area (PWSID IL0312190). Tinley Park also serves parts of the city or nearby areas.
How do I check whether my Oak Forest home has a lead service line?
Search your address on Oak Forest'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 Oak Forest 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 Oak Forest whether your street is scheduled and whether it covers the private side.