Bone Gap, IL
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 12.2 ppb (monitoring period 2024-2024). 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.
Bone Gap at a glance
Bone Gap serves about 209 people through 149 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Edwards County, Illinois. EPA system ID: IL0470100; phone on file: 618-446-3314. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Bone Gap's lead record
That is up 12.2 ppb from 0 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Bone Gap is 12.8 ppb across 7 monitoring periods, none of them over 15 ppb (2 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 12.2 ppb over 10 |
| 2023 | 0 (not detected) |
| 2022 | 3.17 ppb |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 12.8 ppb over 10 |
| 2019 | 6.25 ppb |
How Bone Gap compares
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. Bone Gap's 12.2 ppb sits at the 98th percentile in Illinois and the 98th nationally (higher means more lead).
Neighbouring systems
3 other systems share Edwards County; 0 of them have a higher latest lead result than Bone Gap. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Albion | 2,839 | 2 ppb |
| Ellery Water Corp | 2,380 | 0 (not detected) |
| West Salem | 819 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Bone Gap, 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 Bone Gap whether it covers that cost before hiring anyone - many utilities now do.
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. The lead result guide covers how utilities pick the homes they sample. This system is in the band the 2027 10 ppb rule changes.