We read 7 results from Chicago Heights’s 2025 water quality report. No results over a legal limit or above a health goal.
Serves about 26,184 people · Water system ID IL0310450 · 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 |
|---|---|---|---|---|
| Bariumas reported · listed as a violation in the report · Hammond entry point · 2025 report, page 3 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of 60 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 3 | 0.13 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 3.7 to 7.1 · listed as a violation in the report · Distribution system · 2025 report, page 3 | 6 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 15 to 28.2 · listed as a violation in the report · Distribution system · 2025 report, page 3 | 26 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideas reported · listed as a violation in the report · Hammond entry point · 2025 report, page 3 | 0.67 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)as reported · listed as a violation in the report · Hammond entry point · 2025 report, page 3 | 0.41 ppm | 10 ppm | 10 ppm | Below the health goal |
| Turbidity (cloudiness)highest measured · listed as a violation in the report · Hammond treatment plant · 2025 report, page 3 | 0.15 NTU | None set | 1 NTU | Below the legal 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 in this report is above a health goal or legal limit. If you’re bothered by taste, smell, hardness or spots, or your home has older pipes, the filter catalog and buyer questions can help you pick, and a test of your own tap shows what your plumbing adds.
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