Hardness
Hard to very hard172–302mg/L
2025 distribution-system range. Confirm your incoming hardness to size and set the softener.
USGS: hard >120; very hard >180 mg/L as CaCO₃
2025View source
- 1Your water
- 2Your home
- 3Your system
Phoenix water quality report
Showing utility report
City of Phoenix
2025 report; sample dates vary
Select this exact provider and supply system. A city, county or ZIP match alone does not confirm the water reaching your home.
Your water at a glance
See the amount, the comparison and what it means. “Below” refers to the stated benchmark, not zero risk.
Chlorine
Below disinfectant limit0.84mg/L
Highest running annual average · 2025
4 mg/L MRDL
2025View source
Fluoride
Below listed limit0.3–1.1mg/L
Sample range · 2025
4 mg/L MCL
2025View source
Arsenic
Below limit; 70% of benchmark7µg/L
Highest annual average · 2025; range ND–8.5
10 µg/L MCL
2025View source
Total trihalomethanes
Below listed limit49µg/L
Highest locational running annual average · 2025; range 4–68
80 µg/L MCL
2025View source
Haloacetic acids
Below listed limit17µg/L
Highest locational running annual average · 2025; range 0.6–26
60 µg/L MCL
2025View source
Nitrate (as nitrogen)
Below listed limitND–4.5mg/L
Sample range · 2025
10 mg/L MCL
2025View source
Total chromium
Below listed limit; maximum 87%ND–87µg/L
Sample range · 2025
100 µg/L MCL
2025View source
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The numbers behind your report
Selected results with the original sampling dates and measurement basis. Open the utility report for every parameter, notice and footnote.
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| What was measured | Reported amount | Sample year / source date | How to read it |
|---|---|---|---|
| Hardness | 172–302 mg/L 2025 distribution-system range. Confirm your incoming hardness to size and set the softener. | 2025View source ↗ | Hard to very hard |
| Chlorine | 0.84 mg/LHighest running annual average · 2025 | 2025View source ↗ | Below disinfectant limit4 mg/L MRDL |
| Fluoride | 0.3–1.1 mg/LSample range · 2025 | 2025View source ↗ | Below listed limit4 mg/L MCL |
| Arsenic | 7 µg/LHighest annual average · 2025; range ND–8.5 | 2025View source ↗ | Below limit; 70% of benchmark10 µg/L MCL |
| Total trihalomethanes | 49 µg/LHighest locational running annual average · 2025; range 4–68 | 2025View source ↗ | Below listed limit80 µg/L MCL |
| Haloacetic acids | 17 µg/LHighest locational running annual average · 2025; range 0.6–26 | 2025View source ↗ | Below listed limit60 µg/L MCL |
| Nitrate (as nitrogen) | ND–4.5 mg/LSample range · 2025 | 2025View source ↗ | Below listed limit10 mg/L MCL |
| Total chromium | ND–87 µg/LSample range · 2025 | 2025View source ↗ | Below listed limit; maximum 87%100 µg/L MCL |
| Total dissolved solids | 464–716 mg/LSample range · 2025 | 2025View source ↗ | Range crosses aesthetic guideline500 mg/L secondary guideline |
| Sodium | 91–183 mg/LSample range · 2025 | 2025View source ↗ | No high/low rating assignedNo limit listed in report |
In drinking water, ppm ≈ mg/L, ppb ≈ µg/L and ppt ≈ ng/L. Calculated hardness in grains per US gallon (gpg) = mg/L as CaCO₃ ÷ 17.118, rounded to one decimal. ND means below the reporting limit, not zero.
MCL is an enforceable contaminant limit; MRDL is a disinfectant limit. A secondary guideline concerns aesthetics. TTHM/HAA5 compliance uses locational running annual averages; read the utility’s notices as well as individual results.
PFAS results are compound-specific. Source monitoring, entry-point samples and tap tests are different. A detected result does not identify every PFAS compound or establish the level at your home. Read the original report for context and current utility notices. EPA PFAS benchmarks and implementation ↗
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Source water. Source blends and service areas can differ. Read the utility’s source-water description in the original report and confirm the system on your bill.
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More about your local water
What this means for your home
Hard to very hard. Match treatment to your goals.
Phoenix water is disinfected with chlorine. Canal-related taste and odor can vary seasonally. This report covers the City of Phoenix system, including the former Phoenix–Anthem and Phoenix–Hedgepeth systems described by the city. An address in the metro area does not by itself establish Phoenix service.
A useful local question
Does this report describe every home in Phoenix?
Phoenix water is disinfected with chlorine. Canal-related taste and odor can vary seasonally. This report covers the City of Phoenix system, including the former Phoenix–Anthem and Phoenix–Hedgepeth systems described by the city. An address in the metro area does not by itself establish Phoenix service.
Sources and methodology
We keep each utility’s results separate, show the reported sample year, and distinguish averages, maxima and tap-sampling percentiles. Hardness classifications use USGS ranges. Missing data stays unknown.
- City of Phoenix ↗2025 report; sample dates vary
- USGS hardness classification
- EPA PFAS benchmarks and implementation
Source checks: October 29–November 2, 2026. Layout updated November 4, 2026.
Your water → your home → your system
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Choose the system size, keep useful existing equipment, and review your filtration goals.
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