We read 11 results from Springfield’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 117,444 people · Water system ID IL1671200 · Read the district’s 2025 report (opens in a new tab)
Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.
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 |
|---|---|---|---|---|
| Atrazinehighest measured · range ND to 0.35 · Entry point · 2025 report, page 3 | 0.35 ppb | 0.15 ppb | 3 ppb | Above the health goal2.3x the health goal |
| Bariumhighest measured · Entry point · 2025 report, page 3 | 0.01 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloraminehighest running annual average · range 2 to 2 · Distribution system · 2025 report, page 3 | 2 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 3 | 0.08 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 15.7 to 32.4 · Distribution system · 2025 report, page 3 | 25.4 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 30 to 53.8 · Distribution system · 2025 report, page 3 | 44 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.7 to 0.8 · Entry point · 2025 report, page 3 | 0.8 ppm | 1 ppm | 4 ppm | Below the health goal |
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 3 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)highest measured · range ND to 0.38 · Entry point · 2025 report, page 3 | 0.38 ppm | 10 ppm | 10 ppm | Below the health goal |
| Turbidity (cloudiness)highest measured · Treatment plant · 2025 report, page 3 | 0.3 NTU | None set | 1 NTU | Below the legal limit |
| Sodiumhighest measured · Entry point · 2025 report, page 3 | 12.4 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.
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.
Industrial chemicals and pesticides
Found: Atrazine
What removes it: Carbon block or RO.
More districts: Illinois water quality · All states · Something look wrong? Tell us