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.
See the amount, the comparison and what it means. “Below” refers to the stated benchmark, not zero risk.
≈12 / 16 gpg zone averages
City Zone average ≈12 gpg; Eastern/Southern Zones ≈16 gpg. Full 2025 sample range: 6.6–433 mg/L. The range is not a typical home value.
USGS: hard >120; very hard >180 mg/L as CaCO₃
0.65mg/L
Highest running annual average · 2025; range 0.02–2.04
4 mg/L MRDL
ND–1.11mg/L
Sample range · 2021
4 mg/L MCL
8.8µg/L
Highest level · 2025; range 0.8–8.8
10 µg/L MCL
57µg/L
Highest locational running annual average · 2025; range ND–64.09
80 µg/L MCL
25µg/L
Highest locational running annual average · 2025; current sample range ND–19.6
60 µg/L MCL
8.99mg/L
Highest level · 2025; range ND–8.99
10 mg/L MCL
190–970mg/L
Sample range · 2022
500 mg/L aesthetic guideline
Continue with your home details for general filtration guidance. We will not use another utility’s numbers as your result.
Find My Water System →A city report cannot establish a well’s water quality. Well-water treatment depends on your test results and site conditions.
Explore well-water systems →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 | ≈12 / 16 gpg zone averages City Zone average ≈12 gpg; Eastern/Southern Zones ≈16 gpg. Full 2025 sample range: 6.6–433 mg/L. The range is not a typical home value. | 2025View source ↗ | Very hard zone averages |
| Chlorine | 0.65 mg/LHighest running annual average · 2025; range 0.02–2.04 | 2025View source ↗ | Below disinfectant limit4 mg/L MRDL |
| Fluoride | ND–1.11 mg/LSample range · 2021 | 2021View source ↗ | Below listed limit; older sample year4 mg/L MCL |
| Arsenic | 8.8 µg/LHighest level · 2025; range 0.8–8.8 | 2025View source ↗ | Below limit; 88% of benchmark10 µg/L MCL |
| Total trihalomethanes | 57 µg/LHighest locational running annual average · 2025; range ND–64.09 | 2025View source ↗ | Below listed limit80 µg/L MCL |
| Haloacetic acids | 25 µg/LHighest locational running annual average · 2025; current sample range ND–19.6 | 2025View source ↗ | Below listed limit60 µg/L MCL |
| Nitrate | 8.99 mg/LHighest level · 2025; range ND–8.99 | 2025View source ↗ | Below limit; about 90% of benchmark10 mg/L MCL |
| Total dissolved solids | 190–970 mg/LSample range · 2022 | 2022View source ↗ | Range crosses aesthetic guideline500 mg/L aesthetic guideline |
| Sodium | 45–212 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 ↗
Choose the system size, keep useful existing equipment, and review your filtration goals.
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
Very hard zone averages. Match treatment to your goals.
Mesa separates its supply into City, Eastern and Southern zones. The report includes a zone map; use it with your water bill instead of assuming every Mesa address receives the same blend. Its very wide hardness sample range is not the same as a zone average.
A useful local question
Mesa separates its supply into City, Eastern and Southern zones. The report includes a zone map; use it with your water bill instead of assuming every Mesa address receives the same blend. Its very wide hardness sample range is not the same as a zone average.
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.
Source checks: October 29–November 2, 2026. Layout updated November 4, 2026.
Your water → your home → your system
Choose the system size, keep useful existing equipment, and review your filtration goals.