Morton water quality

Updated 2026-10-23 · Illinois · Affiliate disclosure

We read 10 results from Morton’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.

Serves about 17,111 people · Water system ID IL1790500 · 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.

ContaminantResultHealth goalLegal limitWhat it means
Arsenicas reported · range 6.1 to 7.1 · 2025 report, page 107 ppb0.004 ppb10 ppbAbove the health goal1,750x the health goal
Bariumhighest measured · range 0.14 to 0.14 · 2025 report, page 100.14 ppm2 ppm2 ppmBelow the health goal
Chlorineas reported · range 2.8 to 3.1 · 2025 report, page 93 ppmNone set4 ppmBelow the legal limit
Disinfection byproducts (HAA5)highest running annual average · range 1.1 to 23.7 · 2025 report, page 920 ppbNone set60 ppbBelow the legal limit
Disinfection byproducts (TTHM)highest running annual average · range 6.55 to 11.8 · 2025 report, page 911 ppbNone set80 ppbBelow the legal limit
Fluoridehighest measured · range 0.64 to 0.67 · 2025 report, page 100.67 ppm1 ppm4 ppmBelow the health goal
Ironhighest measured · range ND to 0.01 · 2025 report, page 100.01 ppm—0.3 ppm guidelineWithin the guideline
Manganesehighest measured · range 0.02 to 0.02 · printed as 16 ppb · 2025 report, page 110.02 ppm—0.05 ppm guidelineWithin the guideline
Nitrate (as N)as reported · range 0.78 to 1.9 · 2025 report, page 112 ppm10 ppm10 ppmBelow the health goal
Sodiumhighest measured · range 120 to 120 · 2025 report, page 11120 ppmNone setNoneNo 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.

EPA testing for PFAS and lithium

EPA’s own nationwide testing (UCMR 5) found these in Morton’s water between Jan 2025 and Jul 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.

  • Lithium9.46 ppbFound in 1 of 6 samples · highest resultBelow EPA’s health reference level of 10 ppb

Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.

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.

Arsenic

Found: Arsenic

What removes it: Reverse osmosis.

See filters that remove it

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