We read 15 results from New Lenox’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 27,690 people · Water system ID IL1970700 · 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 |
|---|---|---|---|---|
| Arsenichighest measured · range 0.5 to 8.27 · listed as a violation in the report · sampled 2024 · Village wells · 2025 report, page 4 | 8.27 ppb | 0.004 ppb | 10 ppb | Above the health goal2,068x the health goal |
| Gross alpha (radioactivity)highest measured · range 2.76 to 7.35 · listed as a violation in the report · sampled 2024 · Village wells · 2025 report, page 4 | 7.35 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Radium (combined 226 + 228)highest measured · range 0.89 to 2.64 · listed as a violation in the report · sampled 2024 · Village wells · 2025 report, page 4 | 2.64 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Bariumhighest measured · range 0.01 to 0.03 · listed as a violation in the report · sampled 2024 · Village wells · 2025 report, page 4 | 0.03 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorinehighest running annual average · range 0.7 to 1 · listed as a violation in the report · Distribution system · 2025 report, page 4 | 0.9 ppm | None set | 4 ppm | Below the legal limit |
| Chromium (total)highest measured · range 0.5 to 6.38 · listed as a violation in the report · sampled 2024 · Village wells · 2025 report, page 4 | 6.38 ppb | None set | 100 ppb | Below the legal limit |
| Copper90th percentile of 39 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 5 | 0.1 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range ND to 24 · listed as a violation in the report · Distribution system · 2025 report, page 4 | 22 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range ND to 61 · listed as a violation in the report · Distribution system · 2025 report, page 4 | 49 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.65 to 0.75 · listed as a violation in the report · City of Chicago · 2025 report, page 4 | 0.75 ppm | 1 ppm | 4 ppm | Below the health goal |
| Lead90th percentile of 39 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 5 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Manganesehighest measured · range 0.01 to 0.02 · listed as a violation in the report · printed as 23.1 ppb · sampled 2024 · Village wells · 2025 report, page 4 | 0.02 ppm | — | 0.05 ppm guideline | Within the guideline |
| Sulfatehighest measured · range 26.8 to 27.2 · listed as a violation in the report · City of Chicago · 2025 report, page 5 | 27.2 ppm | — | 250 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.0071 to 0.02 · listed as a violation in the report · printed as 23.6 ppb · sampled 2024 · Village wells · 2025 report, page 4 | 0.02 ppm | — | 5 ppm guideline | Within the guideline |
| Sodiumhighest measured · range 29.9 to 44 · listed as a violation in the report · sampled 2024 · Village wells · 2025 report, page 4 | 44 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.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228)
What removes it: Reverse osmosis.
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