Salt Lake City, Utah Tap Water Quality Report
Serving utility: Salt Lake City Water System
Updated March 2026 • Data from EWG Tap Water Database & EPA SDWIS
High Priority Concerns
Salt Lake City tap water has 16 contaminants exceeding EWG health guidelines, including Haloacetic acids (HAA9), Perfluorohexane sulfonate (PFHXS), Haloacetic acids (HAA5). Additionally, 14 known or suspected carcinogens were detected, including Haloacetic acids (HAA9), Haloacetic acids (HAA5), Total trihalomethanes (TTHMs).
Water Provider Information
Contaminants Detected
| Contaminant | Detected Level | EWG Guideline | Legal Limit | Status |
|---|---|---|---|---|
| Haloacetic acids (HAA9) carcinogen | 34.90 ppb | 0.06 ppb | No legal limit | Above guideline |
| Perfluorohexane sulfonate (PFHXS) | 0.40 ppt | 0.00 ppt | 10 ppt | Above guideline |
| Haloacetic acids (HAA5) carcinogen | 34 ppb | 0.10 ppb | 60 ppb | Above guideline |
| Total trihalomethanes (TTHMs) carcinogen | 34.70 ppb | 0.15 ppb | 80 ppb | Above guideline |
| Bromochloroacetic acid | 3.36 ppb | 0.02 ppb | No legal limit | Above guideline |
| Arsenic carcinogen | 0.54 ppb | 0.00 ppb | 10 ppb | Above guideline |
| Trichloroacetic acid carcinogen | 12 ppb | 0.10 ppb | No legal limit | Above guideline |
| Dichloroacetic acid carcinogen | 20.10 ppb | 0.20 ppb | No legal limit | Above guideline |
| Bromodichloromethane carcinogen | 5.72 ppb | 0.06 ppb | No legal limit | Above guideline |
| Chloroform carcinogen | 16.60 ppb | 0.40 ppb | No legal limit | Above guideline |
| Chromium (hexavalent) carcinogen | 0.41 ppb | 0.02 ppb | No legal limit | Above guideline |
| Dibromochloromethane carcinogen | 1.93 ppb | 0.10 ppb | No legal limit | Above guideline |
| Nitrate carcinogen | 1.49 ppm | 0.14 ppm | 10 ppm | Above guideline |
| Nitrate and nitrite carcinogen | 1.45 ppm | 0.14 ppm | 10 ppm | Above guideline |
| Radium, combined (-226 and -228) | 0.36 pCi/L | 0.05 pCi/L | 5 pCi/L | Above guideline |
| Dibromoacetic acid | 0.21 ppb | 0.03 ppb | No legal limit | Above guideline |
| 1-Butanol | 0.97 ppb | N/A | No legal limit | Below guideline |
| Aluminum | 26.30 ppb | 600 ppb | No legal limit | Below guideline |
| Barium | 67.30 ppb | 700 ppb | 2,000 ppb | Below guideline |
| Bromide | 26 ppb | N/A | No legal limit | Below guideline |
| Bromoform carcinogen | 0.04 ppb | 0.50 ppb | No legal limit | Below guideline |
| Chlorate | 72 ppb | 210 ppb | No legal limit | Below guideline |
| Cyanide | 0.97 ppb | N/A | 200 ppb | Below guideline |
| Fluoride | 0.21 ppm | N/A | 4 ppm | Below guideline |
| Germanium | 0.05 ppb | N/A | No legal limit | Below guideline |
| Lithium | 10.10 ppb | N/A | No legal limit | Below guideline |
| Manganese | 4.44 ppb | 100 ppb | No legal limit | Below guideline |
| Molybdenum | 0.84 ppb | 40 ppb | No legal limit | Below guideline |
| Monochloroacetic acid | 1.76 ppb | 53 ppb | No legal limit | Below guideline |
| Perfluorohexanoic Acid (PFHxA) | 0.13 ppt | 1,000 ppt | No legal limit | Below guideline |
| Perfluorooctane sulfonate (PFOS) carcinogen | 0.16 ppt | 0.30 ppt | 4 ppt | Below guideline |
| Perfluoropentanoic Acid (PFPeA) | 0.14 ppt | 1,000 ppt | No legal limit | Below guideline |
| Selenium | 0.96 ppb | 30 ppb | 50 ppb | Below guideline |
| Silver | 0.03 ppb | N/A | No legal limit | Below guideline |
| Strontium | 0.55 ppb | 1,500 ppb | No legal limit | Below guideline |
| Vanadium | 0.42 ppb | 21 ppb | No legal limit | Below guideline |
Health Context
Haloacetic acids (HAA9) carcinogen
Exposure to elevated levels of this contaminant may pose health risks. See EWG and EPA guidelines for more information.
Perfluorohexane sulfonate (PFHXS)
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.
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.
Recommended Filtration for This Water
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Shop Hydrogen FlaskFrequently Asked Questions
Is Salt Lake City tap water safe to drink?
Salt Lake City tap water meets EPA legal standards for drinking water. However, 16 contaminants exceed stricter EWG health guidelines, and 14 known carcinogens were detected. While legally compliant, additional filtration is recommended for optimal safety.
What contaminants are in Salt Lake City water?
A total of 36 contaminants were detected in Salt Lake City tap water, including Haloacetic acids (HAA9), Perfluorohexane sulfonate (PFHXS). Of these, 16 exceed EWG health guidelines.
What's the best water filter for Salt Lake City?
For Salt Lake City 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 Salt Lake City get its water?
Salt Lake City tap water is provided by Salt Lake City Water System, serving approximately 360,654 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.
