We read 11 results from Geneva’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 21,247 people · Water system ID IL0890350 · Read the district’s 2025 report (opens in a new tab)
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Results from the 2025 report
Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.
| Contaminant | Result | Health goal | Legal limit | What it means |
|---|---|---|---|---|
| Arsenicas reported · sampled 2024 · Wells / treated water · 2025 report, page 5 | 0.34 ppb | 0.004 ppb | 10 ppb | Above the health goal85x the health goal |
| Bariumas reported · sampled 2024 · Wells / treated water · 2025 report, page 5 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorineas reported · range 0.9 to 1 · Distribution system · 2025 report, page 5 | 1 ppm | None set | 4 ppm | Below the legal limit |
| Chromium (total)as reported · sampled 2024 · Wells / treated water · 2025 report, page 5 | 0.91 ppb | None set | 100 ppb | Below the legal limit |
| Copper90th percentile of 60 homes tested, 0 over the action level · Customer taps · 2025 report, page 5 | 0.08 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)as reported · range 1 to 3.1 · Distribution system · 2025 report, page 5 | 3 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)as reported · range 7.8 to 16.3 · Distribution system · 2025 report, page 5 | 16 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideas reported · sampled 2024 · Wells / treated water · 2025 report, page 5 | 0.68 ppm | 1 ppm | 4 ppm | Below the health goal |
| Seleniumas reported · sampled 2024 · Wells / treated water · 2025 report, page 5 | 0.91 ppb | 30 ppb | 50 ppb | Below the health goal |
| Zincas reported · printed as 2.24 ppb · sampled 2024 · Wells / treated water · 2025 report, page 5 | 0.0022 ppm | — | 5 ppm guideline | Within the guideline |
| Sodiumsingle sample · printed as 25,700 ppb · sampled 2024 · Wells / treated water · 2025 report, page 5 | 25.7 ppm | None set | None | No health limit |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper. 1 number we weren’t sure about is held back until a person checks.
What you can do
Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.
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