Aqua Illinois-Nordic Woods, IL
Lead detected, under the action levels
Latest 90th-percentile lead: 2 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.
About Aqua Illinois-Nordic Woods
Aqua Illinois-Nordic Woods serves about 425 people through 170 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Ogle County, Illinois. EPA system ID: IL1415330; phone on file: 224-602-6779. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is up 2 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Aqua Illinois-Nordic Woods is 2.95 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2022 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 1.8 ppb |
| 2019 | 1.8 ppb |
| 2016 | 2.95 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. Aqua Illinois-Nordic Woods's 2 ppb sits at the 72nd percentile in Illinois and the 71st nationally (higher means more lead).
Nearby utilities
20 other systems share Ogle County; 1 of them has a higher latest lead result than Aqua Illinois-Nordic Woods. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Rochelle | 9,446 | 2.7 ppb |
| Byron | 3,784 | 0 (not detected) |
| Oregon | 3,449 | 0 (not detected) |
| Mount Morris | 2,861 | 1.1 ppb |
| Polo | 2,355 | 0 (not detected) |
| Davis Junction | 2,344 | 0 (not detected) |
| Forreston | 1,338 | 1.2 ppb |
| Hillcrest | 1,224 | 0 (not detected) |
| Stillman Valley | 1,200 | 0 (not detected) |
| Lost Lake Utility District | 704 | 0 (not detected) |
Next steps for Glenview, IL
Test your own tap with a certified lab first-draw sample; Glenview, 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 Aqua Illinois-Nordic Woods 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. Systems that went over once often dip back under; here is what that means.