Swedona Water Association, IL
Lead detected, under the action levels
Latest 90th-percentile lead: 0.7 ppb (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. 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.
Swedona Water Association at a glance
Swedona Water Association serves about 109 people through 55 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Mercer County, Illinois. EPA system ID: IL1315200; phone on file: 309-235-8014. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is down 4 ppb from 4.7 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Swedona Water Association is 4.7 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.7 ppb |
| 2022 | 4.7 ppb |
| 2019 | 1 ppb |
| 2016 | 3.7 ppb |
Where this result ranks
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. Swedona Water Association's 0.7 ppb sits at the 57th percentile in Illinois and the 46th nationally (higher means more lead).
Nearby utilities
13 other systems share Mercer County; 8 of them have a higher latest lead result than Swedona Water Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Aledo | 3,470 | 3 ppb |
| Viola | 869 | 0 (not detected) |
| Sherrard | 785 | 1.9 ppb |
| Fyre Lake Water Company | 760 | 2.2 ppb |
| Keithsburg | 747 | 0 (not detected) |
| New Windsor | 740 | 6.2 ppb |
| Matherville | 651 | 11.6 ppb |
| New Boston | 613 | 0 (not detected) |
| Forrest Brooke Mhp | 491 | - |
| Joy | 377 | 1.7 ppb |
Next steps for Sherrard, IL
Test your own tap with a certified lab first-draw sample; Sherrard, 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 Swedona Water Association 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. Size matters more than most people expect: small vs large water systems.