Jonesboro, IL
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About Jonesboro
Jonesboro serves about 1,799 people through 874 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Union County, Illinois. EPA system ID: IL1810250; phone on file: 618-833-2712. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 14.7 ppb from 14.7 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Jonesboro is 15.1 ppb across 4 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 14.7 ppb over 10 |
| 2019 | 15.1 ppb over 15 |
| 2016 | 0 (not detected) |
How Jonesboro 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. Jonesboro's reported as 0 (not detected) sits at the 39th percentile in Illinois and the 30th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Union County
8 other systems share Union County; 6 of them have a higher latest lead result than Jonesboro. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Anna | 4,910 | 1.7 ppb |
| Lick Creek Pwd | 2,365 | 0 (not detected) |
| Cobden | 1,267 | 4.1 ppb |
| Alto Pass Water District | 1,015 | 3 ppb |
| Shawnee Valley Pwd | 738 | 1 ppb |
| Dongola | 736 | 2.65 ppb |
| Choate Mhc | 533 | 0 (not detected) |
| Anna-Jonesboro Water Commission | 28 | 2.64 ppb |
Next steps for Jonesboro, IL
Test your own tap with a certified lab first-draw sample; Jonesboro, 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 Jonesboro 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. Why an old exceedance still matters: over the limit before, under it now.