Le Roy, IL
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 13 ppb (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
Who runs the water here
Le Roy serves about 3,498 people through 1,549 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Mclean County, Illinois. EPA system ID: IL1130750. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is down 36 ppb from 49 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Le Roy is 49 ppb across 9 monitoring periods, 5 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 13 ppb over 10 |
| 2024 | 49 ppb over 15 |
| 2024 | 8.6 ppb |
| 2023 | 21 ppb over 15 |
| 2023 | 16 ppb over 15 |
| 2022 | 16 ppb over 15 |
| 2022 | 27 ppb over 15 |
| 2021 | 14 ppb over 10 |
| 2018 | 3 ppb |
Against other Illinois systems
Of the 1,744 Illinois systems with a lead result, the median latest reading is 0 ppb; 22 are over 15 ppb right now and 152 have gone over at some point. Le Roy's 13 ppb sits at the 98th percentile in Illinois and the 98th nationally (higher means more lead).
Nearby utilities
34 other systems share Mclean County; 1 of them has a higher latest lead result than Le Roy. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Bloomington | 79,000 | 2.5 ppb |
| Normal | 52,736 | 3.7 ppb |
| Illinois State University-Normal | 6,600 | 0 (not detected) |
| Heyworth | 2,853 | 0 (not detected) |
| Lexington | 1,930 | 0 (not detected) |
| Hudson | 1,847 | 0 (not detected) |
| Bloomington Township Pwd West Phase | 1,800 | 0 (not detected) |
| Chenoa | 1,800 | 1.7 ppb |
| Gridley | 1,411 | 0 (not detected) |
| Hilltop Mhp | 1,360 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Leroy, IL may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Le Roy whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 2700 ppb (copper action level 1,300 ppb).
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. See what changes at 10 ppb in 2027.