Coffeen, IL
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2020-2022). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Coffeen at a glance
Coffeen serves about 647 people through 290 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 surface water, in Montgomery County, Illinois. EPA system ID: IL1350150; phone on file: 618-973-0633. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Coffeen's lead record
That is down 3.4 ppb from 3.4 ppb in the period ending 2019. The highest 90th-percentile result EPA holds for Coffeen is 3.4 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2022 | 0 (not detected) |
| 2019 | 3.4 ppb |
| 2016 | 0 (not detected) |
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. Coffeen's reported as 0 (not detected) sits at the 24th percentile in Illinois and the 24th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
17 other systems share Montgomery County; 3 of them have a higher latest lead result than Coffeen. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Litchfield | 6,648 | 0 (not detected) |
| Hillsboro | 4,402 | 1.1 ppb |
| Nokomis | 2,370 | 0 (not detected) |
| Graham Correctional Site | 2,155 | - |
| Ej Water-Mcwc | 2,083 | 0 (not detected) |
| Henderson Pwd | 2,045 | 0 (not detected) |
| Raymond | 974 | 0 (not detected) |
| Ej Water-Witt | 785 | 0 (not detected) |
| Farmersville | 784 | 0 (not detected) |
| Taylor Springs | 724 | 0 (not detected) |
Your move
Look up your address in Coffeen's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Coffeen 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Small systems behave differently: why small systems go over more often.