Tucson Tap Water
Water provider: Tucson Water (Tucson, AZ)
Our recommendation
Premium filter strongly recommended
Your water has contaminants that require stronger filtration (heavy metals, PFAS, or limits exceeded). Reverse osmosis is the recommended tier.
See recommended water filters →What is in the water
Arsenic
DetectedNaturally occurring heavy metal. Long-term exposure linked to cancer and cardiovascular disease.
Reported: ~3 ppb
Trihalomethanes (THMs)
DetectedDisinfection byproducts formed when chlorine reacts with organic matter. Long-term exposure linked to cancer risk.
Reported: ~20 ppb
Chromium-6 (hexavalent chromium)
DetectedIndustrial contaminant. Known human carcinogen. Unregulated at the federal level in the US.
Reported: low levels
Source
Data from the Tucson Water Quality Report (2023). Last reviewed 2024-11-01.
Note: Contaminant levels vary by address (older plumbing can leach lead even when the source water does not), sampling location, and time of year. The figures above reflect utility-wide averages from the most recent public report. If you have specific health concerns, request a full report from your utility or test your own tap water.