Arcola, IL
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2028). 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 Arcola
Arcola serves about 2,927 people through 1,330 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 Douglas County, Illinois. EPA system ID: IL0410050; phone on file: 217-268-4966. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Arcola is 22.2 ppb across 14 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 6.65 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2021 | 11.4 ppb over 10 |
| 2020 | 6.9 ppb |
| 2020 | 0 (not detected) |
| 2019 | 22.2 ppb over 15 |
| 2016 | 14.8 ppb over 10 |
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. Arcola's reported as 0 (not detected) sits at the 44th percentile in Illinois and the 33rd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
10 other systems share Douglas County; 1 of them has a higher latest lead result than Arcola. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Tuscola | 4,875 | 0 (not detected) |
| West Prairie Water Company | 3,073 | 0 (not detected) |
| Il American-Villa Grove | 2,467 | 3 ppb |
| Atwood | 1,155 | 0 (not detected) |
| Newman | 836 | 0 (not detected) |
| Camargo | 750 | 0 (not detected) |
| Hindsboro | 296 | 0 (not detected) |
| Garrett | 198 | 0 (not detected) |
| Egyptian Trail Water Corp | 64 | 0 (not detected) |
| Arcola/Tuscola Water Transmissioin Main | 50 | 0 (not detected) |
Next steps for Arcola, IL
Test your own tap with a certified lab first-draw sample; Arcola, 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 Arcola 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. What a 90th-percentile result does and does not tell you: how to read a lead result. More in what a past exceedance means today.