Il American-Cedar Water, IL
Lead detected, under the action levels
Latest 90th-percentile lead: 2.2 ppb (monitoring period 2022-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Who runs the water here
Il American-Cedar Water serves about 172 people through 66 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Knox County, Illinois. EPA system ID: IL0955150; phone on file: 618-874-2408. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Il American-Cedar Water's lead record
That is up 2.2 ppb from 0 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Il American-Cedar Water is 3.2 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2.2 ppb |
| 2021 | 0 (not detected) |
| 2018 | 3.2 ppb |
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. Il American-Cedar Water's 2.2 ppb sits at the 74th percentile in Illinois and the 75th nationally (higher means more lead).
Other water systems in Knox County
16 other systems share Knox County; 6 of them have a higher latest lead result than Il American-Cedar Water. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Galesburg | 31,620 | 0 (not detected) |
| Abingdon | 3,275 | 0 (not detected) |
| Knoxville | 3,120 | 0 (not detected) |
| Aqua Illinois-Oak Run | 1,885 | 4 ppb |
| Wataga | 965 | 1.3 ppb |
| East Galesburg | 860 | 3.4 ppb |
| Yates City | 828 | 5.37 ppb |
| Williamsfield | 647 | 3.01 ppb |
| Oneida | 644 | 0 (not detected) |
| Altona | 483 | 4.1 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Godfrey, 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 Il American-Cedar Water 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. Systems that went over once often dip back under; here is what that means.