Aqua Illinois-Philo, IL
Lead reported as not detected
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 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Aqua Illinois-Philo
Aqua Illinois-Philo serves about 1,378 people through 588 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Champaign County, Illinois. EPA system ID: IL0190600; phone on file: 224-602-6779. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 1.8 ppb from 1.8 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Aqua Illinois-Philo is 2.2 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 0 (not detected) |
| 2025 | 1.8 ppb |
| 2024 | 2.2 ppb |
| 2021 | 1.3 ppb |
| 2018 | 1.5 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-Philo's reported as 0 (not detected) sits at the 36th percentile in Illinois and the 29th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
28 other systems share Champaign County; 11 of them have a higher latest lead result than Aqua Illinois-Philo. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Il American-Champaign | 150,000 | 0 (not detected) |
| Rantoul | 13,000 | 2.2 ppb |
| U Of I-Champaign | 13,000 | 2.3 ppb |
| Mahomet | 7,000 | 0 (not detected) |
| Sangamon Valley Pwd | 5,300 | 0 (not detected) |
| Il American-Tolono | 3,604 | 1 ppb |
| Il American-Fisher | 2,026 | 0 (not detected) |
| Homer | 1,200 | 0 (not detected) |
| Thomasboro | 1,066 | 0 (not detected) |
| Gifford | 911 | 0 (not detected) |
What to do in your house
Look up your address in Aqua Illinois-Philo's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Aqua Illinois-Philo 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. A zero today does not rule out a jump later - the rules are tightening in 2027.