Omaha, Nebraska Tap Water Quality Report
Serving utility: Metropolitan Utilities District
Updated March 2026 • Data from EWG Tap Water Database & EPA SDWIS
High Priority Concerns
Omaha tap water has 14 contaminants exceeding EWG health guidelines, including Arsenic, Haloacetic acids (HAA9), Total trihalomethanes (TTHMs). Additionally, 12 known or suspected carcinogens were detected, including Arsenic, Haloacetic acids (HAA9), Total trihalomethanes (TTHMs).
Water Provider Information
Contaminants Detected
| Contaminant | Detected Level | EWG Guideline | Legal Limit | Status |
|---|---|---|---|---|
| Arsenic carcinogen | 2.59 ppb | 0.00 ppb | 10 ppb | Above guideline |
| Haloacetic acids (HAA9) carcinogen | 33.20 ppb | 0.06 ppb | No legal limit | Above guideline |
| Total trihalomethanes (TTHMs) carcinogen | 40.20 ppb | 0.15 ppb | 80 ppb | Above guideline |
| Bromochloroacetic acid | 5.06 ppb | 0.02 ppb | No legal limit | Above guideline |
| Haloacetic acids (HAA5) carcinogen | 19.30 ppb | 0.10 ppb | 60 ppb | Above guideline |
| Bromodichloromethane carcinogen | 11 ppb | 0.06 ppb | No legal limit | Above guideline |
| Dichloroacetic acid carcinogen | 13.60 ppb | 0.20 ppb | No legal limit | Above guideline |
| Chloroform carcinogen | 23.50 ppb | 0.40 ppb | No legal limit | Above guideline |
| Dibromoacetic acid | 1.74 ppb | 0.03 ppb | No legal limit | Above guideline |
| Dibromochloromethane carcinogen | 5.30 ppb | 0.10 ppb | No legal limit | Above guideline |
| Trichloroacetic acid carcinogen | 3.28 ppb | 0.10 ppb | No legal limit | Above guideline |
| Chromium (hexavalent) carcinogen | 0.61 ppb | 0.02 ppb | No legal limit | Above guideline |
| Nitrate and nitrite carcinogen | 1.15 ppm | 0.14 ppm | 10 ppm | Above guideline |
| Radium, combined (-226 and -228) | 0.16 pCi/L | 0.05 pCi/L | 5 pCi/L | Above guideline |
| Antimony | 0.12 ppb | 1 ppb | 6 ppb | Below guideline |
| Atrazine | 0.04 ppb | 0.10 ppb | 3 ppb | Below guideline |
| Barium | 75.60 ppb | 700 ppb | 2,000 ppb | Below guideline |
| Bromoform carcinogen | 0.30 ppb | 0.50 ppb | No legal limit | Below guideline |
| Chlorate | 4.73 ppb | 210 ppb | No legal limit | Below guideline |
| Chromium (total) | 1.06 ppb | N/A | 100 ppb | Below guideline |
| Fluoride | 0.62 ppm | N/A | 4 ppm | Below guideline |
| Manganese | 0.88 ppb | 100 ppb | No legal limit | Below guideline |
| Molybdenum | 3.81 ppb | 40 ppb | No legal limit | Below guideline |
| Monochloroacetic acid | 0.67 ppb | 53 ppb | No legal limit | Below guideline |
| Quinoline | 0.00 ppb | N/A | No legal limit | Below guideline |
| Selenium | 2.16 ppb | 30 ppb | 50 ppb | Below guideline |
| Strontium | 0.29 ppb | 1,500 ppb | No legal limit | Below guideline |
| Vanadium | 4.20 ppb | 21 ppb | No legal limit | Below guideline |
Health Context
Arsenic carcinogen
Long-term exposure increases risk of skin cancer, bladder cancer, and lung cancer; chronic exposure causes neurological effects and cardiovascular disease.
Haloacetic acids (HAA9) carcinogen
Exposure to elevated levels of this contaminant may pose health risks. See EWG and EPA guidelines for more information.
Total trihalomethanes (TTHMs) carcinogen
Exposure to elevated levels of this contaminant may pose health risks. See EWG and EPA guidelines for more information.
Bromochloroacetic acid
Exposure to elevated levels of this contaminant may pose health risks. See EWG and EPA guidelines for more information.
Haloacetic acids (HAA5) carcinogen
Exposure to elevated levels of this contaminant may pose health risks. See EWG and EPA guidelines for more information.
Recommended Filtration for This Water
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Shop Hydrogen FlaskFrequently Asked Questions
Is Omaha tap water safe to drink?
Omaha tap water meets EPA legal standards for drinking water. However, 14 contaminants exceed stricter EWG health guidelines, and 12 known carcinogens were detected. While legally compliant, additional filtration is recommended for optimal safety.
What contaminants are in Omaha water?
A total of 28 contaminants were detected in Omaha tap water, including Arsenic, Haloacetic acids (HAA9). Of these, 14 exceed EWG health guidelines.
What's the best water filter for Omaha?
For Omaha tap water, we recommend a reverse osmosis (RO) system for drinking water — it removes up to 99.9% of contaminants including heavy metals, PFAS, and disinfection byproducts. For shower and bath water, a whole-home filtration system reduces chlorine and volatile organics.
Where does Omaha get its water?
Omaha tap water is provided by Metropolitan Utilities District, serving approximately 600,000 people. For detailed source water information, contact your local utility or visit the EPA's SDWIS database.
Nearby City Water Reports
Data sources: Environmental Working Group (EWG) Tap Water Database, U.S. EPA Safe Drinking Water Information System (SDWIS)
Last updated: March 2026
Methodology: Contaminant levels are compared against both EPA legal limits (Maximum Contaminant Levels) and EWG health guidelines, which are often stricter and based on the latest scientific research.
