Hi there, your free Iowa City water report

Iowa City Water Department · Iowa River + alluvial/jordan wells (surface-influenced). Your water meets federal legal limits — but those limits haven't been updated in nearly 20 years.

Above health guidelines

307x

HAA vs. guideline

276x

TTHMs vs. guideline

Bottom line: 12 contaminants came back above the latest health guidelines — led by farm-runoff nitrate and chlorination byproducts. The good news: the right system reduces all of them.

Detected above health-based guidelines

Level found vs. a non-enforceable, health-based guideline. Detection data comes from public Iowa DNR & U.S. EPA testing records (2021–2023); health guidelines are drawn from state public-health authorities (such as California's OEHHA) and peer-reviewed research, and are far stricter than federal legal limits. Water that exceeds a health guideline can still meet all legal standards.

Haloacetic acids (HAA9) · disinfection byproduct

18.4 ppb detected · guideline 0.06 ppb · no legal limit

307x

Total trihalomethanes (TTHMs) · disinfection byproduct

41.4 ppb detected · guideline 0.15 ppb · legal limit 80 ppb

276x

Bromodichloromethane · disinfection byproduct

11.8 ppb detected · guideline 0.06 ppb · no legal limit

197x

Dibromochloromethane · disinfection byproduct

8.2 ppb detected · guideline 0.1 ppb · no legal limit

82x

Dibromoacetic acid · disinfection byproduct

2.36 ppb detected · guideline 0.03 ppb · no legal limit

79x

+ 7 more · Haloacetic acids, Chloroform, Dichloroacetic acid, Chromium…

3.6–78x

Recommended for your home: Whole-Home Softener + Reverse Osmosis

A whole-home softener handles Iowa's hard water and protects your plumbing; 7-stage reverse osmosis at your kitchen tap is one of the most effective ways to reduce the contaminants above.

Helps reduce:✓ Nitrate✓ Disinfection byproducts✓ Hard-water scale

🛡 Lifetime parts warranty 🧪 Free in-home water test 🛠 Installed by licensed plumbers

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No pressure, no obligation — or call (319) 536-1924

Based on publicly available drinking-water testing data from the Iowa Department of Natural Resources and the U.S. Environmental Protection Agency (detections 2021–2023; radiologicals 2018–2023). Levels are utility-wide annual averages and meet federal legal limits; 'health-based guideline' refers to non-enforceable health goals set by federal or state public-health authorities. Informational only — not a medical or safety determination. Your home's water, especially on a private well, may differ; a free in-home test measures your actual water.