Rolling Meadows Water Quality (Illinois) – 2025 Report Results

We read 17 results from Rolling Meadows’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.

Serves about 23,329 people · Water system ID IL0312730 · 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
Arsenichighest measured · range ND to 0.54 · City of Chicago (parent supply), highest of 2 sources · 2025 report, page 3	0.54 ppb	0.004 ppb	10 ppb	Above the health goal135x the health goal
Fluoridehighest measured · range 1.01 to 1.06 · Rolling Meadows water supply, highest of 2 sources · 2025 report, page 4	1.06 ppm	1 ppm	4 ppm	Above the health goal1.1x the health goal
Ironhighest measured · Rolling Meadows water supply · 2025 report, page 4	0.46 ppm	—	0.3 ppm guideline	Above the guideline1.5x the guideline (taste, odor or stains; not a health limit)
Lead90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 4	0.93 ppb	0.2 ppb	15 ppb (action level)	Above the health goal4.6x the health goal
Bariumhighest measured · Rolling Meadows water supply, highest of 2 sources · 2025 report, page 4	0.04 ppm	2 ppm	2 ppm	Below the health goal
Chlorineas reported · range 1 to 1.4 · Distribution system · 2025 report, page 4	1.1 ppm	None set	4 ppm	Below the legal limit
Chromium (total)highest measured · Rolling Meadows water supply · 2025 report, page 4	0.55 ppb	None set	100 ppb	Below the legal limit
Copper90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 4	0.06 ppm	0.3 ppm	1.3 ppm (action level)	Below the health goal
Disinfection byproducts (HAA5)highest measured · range 12.2 to 22 · Distribution system · 2025 report, page 4	20 ppb	None set	60 ppb	Below the legal limit
Disinfection byproducts (TTHM)highest measured · range 21.6 to 79 · Distribution system · 2025 report, page 4	54 ppb	None set	80 ppb	Below the legal limit
Manganesehighest measured · printed as 11.1 ppb · Rolling Meadows water supply · 2025 report, page 4	0.01 ppm	—	0.05 ppm guideline	Within the guideline
Nitrate (as N)highest measured · range 0.32 to 0.36 · City of Chicago (parent supply) · 2025 report, page 3	0.36 ppm	10 ppm	10 ppm	Below the health goal
Seleniumhighest measured · Rolling Meadows water supply · 2025 report, page 4	0.24 ppb	30 ppb	50 ppb	Below the health goal
Sulfatehighest measured · range 26.8 to 27.2 · City of Chicago (parent supply) · 2025 report, page 3	27.2 ppm	—	250 ppm guideline	Within the guideline
Turbidity (cloudiness)highest measured · City of Chicago (parent supply) · 2025 report, page 3	0.29 NTU	None set	1 NTU	Below the legal limit
Zinchighest measured · Rolling Meadows water supply · 2025 report, page 4	0.02 ppm	—	5 ppm guideline	Within the guideline
Sodiumhighest measured · range 8.67 to 9.1 · City of Chicago (parent supply) · 2025 report, page 3	9.1 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. 2 numbers we weren’t sure about are 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.