Hardness
Hard · historical guidance9gpg
City guidance, approximately 154 mg/L as calcium carbonate
Retest incoming water before choosing softener settings.
2021 city guidanceView source
- 1Your water
- 2Your home
- 3Your system
Graham County water quality report
Showing utility report
City of Safford
2025 annual report; individual sample dates shown
City of Safford. Match the system name on your water bill.
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 listed limit0.97mg/L
Reported amount; range 0.20–0.97
4 mg/L MRDL
2025View source
Arsenic
Below listed limit7.30µg/L
Reported amount; range 6.20–7.30
10 µg/L MCL
2025View source
Fluoride
Below listed limit1.72mg/L
Reported amount; range 1.65–1.72
4 mg/L MCL
2025View source
Total trihalomethanes
Below listed limit19.70µg/L
Reported compliance amount; sample range 3.40–32.20
80 µg/L MCL
2025View source
Nitrate
Below listed limit3.00mg/L
Reported compliance amount; sample range ND–3.43
10 mg/L MCL
2025View source
Your provider needs its own report.
Continue with your home details for general filtration guidance. We will not use another utility’s numbers as your result.
Find My Water System →Private well? Start with a current water test.
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 →Water hardness by provider
The figures below are provider-specific. They are not a countywide average.
| Utility | Hardness | Hardness source |
|---|---|---|
| 9 gpg · hard · 2021 guidance | 2021 city guidance |
View Full Water ReportOpen the measured results, dates, comparisons and original utility report.
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.
Open the complete utility report ↗
| What was measured | Reported amount | Sample year / source date | How to read it |
|---|---|---|---|
| Hardness | 9 gpgCity guidance, approximately 154 mg/L as calcium carbonate | 2021 city guidanceView source ↗ | Hard · historical guidanceRetest incoming water before choosing softener settings. |
| Chlorine | 0.97 mg/LReported amount; range 0.20–0.97 | 2025View source ↗ | Below listed limit4 mg/L MRDL |
| Arsenic | 7.30 µg/LReported amount; range 6.20–7.30 | 2025View source ↗ | Below listed limit10 µg/L MCL |
| Fluoride | 1.72 mg/LReported amount; range 1.65–1.72 | 2025View source ↗ | Below listed limit4 mg/L MCL |
| Total trihalomethanes | 19.70 µg/LReported compliance amount; sample range 3.40–32.20 | 2025View source ↗ | Below listed limit80 µg/L MCL |
| Nitrate | 3.00 mg/LReported compliance amount; sample range ND–3.43 | 2025View source ↗ | Below listed limit10 mg/L MCL |
| Haloacetic acids (HAA5) | 4.00 µg/LReported compliance amount; sample range ND–5.20 | 2025View source ↗ | Below listed limit60 µg/L MCL |
| Lead (90th percentile) | 1.10 µg/LOne of 30 samples exceeded the action level | 2023View source ↗ | One sample above action level15 µg/L action level |
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. Groundwater from the Bonita system and the city’s listed well sources.
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More about your local water
What this means for your home
Use Safford’s published hardness as background, then confirm your home’s current level.
Safford supplies customers in several nearby communities as well as the city. The supplier on your bill determines whether this report applies. The city’s 9 gpg hardness guidance is from 2021; other Graham County utilities, tribal systems and private wells need their own data.
A useful local question
How hard is Safford’s water?
The city’s water-quality page lists 9 grains per gallon for 2021, approximately 154 mg/L. That historical figure falls in the hard-water range. Test current incoming water before choosing softener capacity and settings.
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.
Different name on your water bill?
The systems covered here publish separate reports. Use the official links to confirm your utility and system. If yours is not listed, choose Other / not sure.
- City of Safford ↗2025 annual report; individual sample dates shown
- City of Safford — service area and 2021 hardness guidance ↗
- City of Safford · Hardness source ↗
- USGS hardness classification
- EPA PFAS benchmarks and implementation
Sources reviewed November 14, 2026. Individual sample years are shown with each result.
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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