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Comprehensive Consumer Confidence Report for Phoenix, Arizona
Meets EPA safety standards
View detailed city report →Latest reported levels compared to EPA maximum limits
31% of the EPA limit. A disinfection byproduct of chlorination, well within the safe range.
30% of the EPA limit. Naturally present in Arizona source water and treated to well below the federal standard.
17% of the EPA limit. Another chlorination byproduct, comfortably within EPA guidelines.
Just 4% of the action level. Phoenix water leaves the plant lead-free; any lead comes from old household plumbing, not the supply.
Phoenix is almost entirely a surface-water city — over 95% of its supply comes from rivers rather than wells. That surface water is naturally high in minerals, which is why Phoenix tap water is noticeably “hard.”
Arizona source water also carries naturally-occurring trace arsenic, which the city treats down to well below the EPA limit before the water reaches your tap.
Phoenix runs its river water through conventional treatment — coagulation, sedimentation, and filtration — at its network of plants including Val Vista, Union Hills, Deer Valley, Lake Pleasant, and 24th Street.
Chlorine is added to kill bacteria and viruses and to keep the water safe throughout the distribution system. This is the main source of the chlorine taste some residents notice.
The city adjusts water chemistry to minimize corrosion in pipes, which keeps lead and copper from leaching out of older household plumbing.
Fluoride is maintained at about 0.6 mg/L — below the level found naturally in some Arizona groundwater — for dental-health benefits, consistent with public-health guidelines.
No Active Health-Based Violations
The Phoenix Water System has had past monitoring, reporting, and compliance issues on record, but all have been resolved. There are no active health-based violations of federal drinking-water standards.
View the complete Consumer Confidence Report on the City of Phoenix website:
phoenix.gov/waterservices →Call Phoenix Water Services at (602) 262-6251 to request a printed copy of the annual water quality report or to ask about your service area.
Utility: City of Phoenix Water Services Department
Public Water System ID: AZ655145 · Maricopa County
Serving roughly 1.6 million residents
Yes. Phoenix tap water meets EPA and Arizona drinking-water standards, and every measured contaminant is well below its federal limit. The City of Phoenix Water Services Department treats and tests the supply continuously. Some residents still choose a filter for chlorine taste, hard-water minerals, or extra peace of mind about naturally-occurring trace arsenic.
Phoenix is supplied almost entirely by surface water — the Salt and Verde Rivers via the Salt River Project (SRP) and the Colorado River via the Central Arizona Project (CAP) canal. Local groundwater wells supplement the supply during peak demand and drought.
Because it comes from mineral-rich rivers rather than wells, Phoenix water is naturally “hard” — high in calcium and magnesium. Hardness is a taste and scale issue, not a health hazard, but it's why many households see mineral buildup on fixtures and appliances.
It's optional — the water is already safe. The most common reasons Phoenix residents filter are chlorine taste and odor and reducing naturally-occurring trace arsenic. For arsenic, a APEC reverse-osmosis system is the most effective; for chlorine taste with no installation, the ZeroWater pitcher is a good renter-friendly option. For hard-water scale you'd need a separate water softener.
The City of Phoenix publishes its annual Consumer Confidence Report at phoenix.gov/waterservices. You can also request a printed copy by calling Phoenix Water Services at (602) 262-6251.