Washburn, 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.
Washburn at a glance
Washburn serves about 1,032 people through 488 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 Woodford County, Illinois. EPA system ID: IL2034940; phone on file: 309-248-7222. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Washburn's lead record
That is down 13.9 ppb from 13.9 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Washburn is 27 ppb across 17 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 0 (not detected) |
| 2025 | 13.9 ppb over 10 |
| 2025 | 2.82 ppb |
| 2025 | 0 (not detected) |
| 2025 | 2.6 ppb |
| 2024 | 3.2 ppb |
| 2024 | 2.8 ppb |
| 2023 | 4.5 ppb |
| 2023 | 3.7 ppb |
| 2022 | 9.5 ppb |
| 2022 | 3.6 ppb |
| 2021 | 3.3 ppb |
| 2021 | 5.1 ppb |
| 2020 | 4.1 ppb |
| 2020 | 3.3 ppb |
| 2019 | 27 ppb over 15 |
| 2016 | 12 ppb over 10 |
How Washburn 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. Washburn's reported as 0 (not detected) sits at the 32nd percentile in Illinois and the 27th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Woodford County
18 other systems share Woodford County; 11 of them have a higher latest lead result than Washburn. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Eureka | 5,216 | 2.5 ppb |
| Caterpillar Trail Pwd | 5,125 | 0 (not detected) |
| Metamora | 3,895 | 5.7 ppb |
| El Paso | 2,900 | 3.5 ppb |
| Roanoke | 2,000 | 0 (not detected) |
| Minonk | 1,928 | 0 (not detected) |
| Goodfield | 936 | 7.4 ppb |
| Congerville | 497 | 0 (not detected) |
| Benson | 401 | 0 (not detected) |
| Secor | 351 | 1.5 ppb |
Next steps for Washburn, IL
Test your own tap with a certified lab first-draw sample; Washburn, 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 Washburn whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1900 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. 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.