2026 report; 2025 compliance
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See the amount, the comparison and what it means. “Below” refers to the stated benchmark, not zero risk.
215–290mg/L
2026 report, approximate area levels: 215–290 mg/L. South of Indian School: 230–260; Indian School–Chaparral: 215–285; north of Chaparral: 230–290.
USGS: hard >120; very hard >180 mg/L as CaCO₃
0.64mg/L
Reported average · 2025; sample range 0–1.4
4 mg/L MRDL
ND–0.5mg/L
Sample range · 2025
4 mg/L MCL
5.8µg/L
Highest running annual average · 2025; sample range 1.2–6.3
10 µg/L MCL
52.7µg/L
Highest locational running annual average · 2025; range 26.7–61.3
80 µg/L MCL
9.1µg/L
Highest locational running annual average · 2025; range 2.5–9.5
60 µg/L MCL
4.0mg/L
Highest running annual average · 2025; sample range ND–6.4
10 mg/L MCL
ND–25.7µg/L
Sample range · 2025
100 µg/L MCL
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 | 215–290 mg/L 2026 report, approximate area levels: 215–290 mg/L. South of Indian School: 230–260; Indian School–Chaparral: 215–285; north of Chaparral: 230–290. | 2026 report · approximate area levelsView source ↗ | Very hard |
| Chlorine | 0.64 mg/LReported average · 2025; sample range 0–1.4 | 2025View source ↗ | Below disinfectant limit4 mg/L MRDL |
| Fluoride | ND–0.5 mg/LSample range · 2025 | 2025View source ↗ | Below listed limit4 mg/L MCL |
| Arsenic | 5.8 µg/LHighest running annual average · 2025; sample range 1.2–6.3 | 2025View source ↗ | Below listed limit10 µg/L MCL |
| Total trihalomethanes | 52.7 µg/LHighest locational running annual average · 2025; range 26.7–61.3 | 2025View source ↗ | Below listed limit80 µg/L MCL |
| Haloacetic acids | 9.1 µg/LHighest locational running annual average · 2025; range 2.5–9.5 | 2025View source ↗ | Below listed limit60 µg/L MCL |
| Nitrate | 4.0 mg/LHighest running annual average · 2025; sample range ND–6.4 | 2025View source ↗ | Below listed limit10 mg/L MCL |
| Total chromium | ND–25.7 µg/LSample range · 2025 | 2025View source ↗ | Below listed limit100 µg/L MCL |
| Total dissolved solids | 325–710 mg/LRange in 2026 report | 2026View source ↗ | Range crosses aesthetic guideline500 mg/L aesthetic guideline |
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
Very hard. Match treatment to your goals.
Hardness depends on the part of Scottsdale served. We use the approximate area table in the 2026 report rather than the different numbers on the utility’s undated drinking-water FAQ. Confirm present hardness with a test before programming a softener. Do not transfer these figures to a different utility serving a Scottsdale mailing address.
A useful local question
Hardness depends on the part of Scottsdale served. We use the approximate area table in the 2026 report rather than the different numbers on the utility’s undated drinking-water FAQ. Confirm present hardness with a test before programming a softener. Do not transfer these figures to a different utility serving a Scottsdale mailing address.
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.