2025 report; sample dates shown in full report
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See the amount, the comparison and what it means. “Below” refers to the stated benchmark, not zero risk.
237 mg/L average
2025 average: 237 mg/L as CaCO₃ (13.8 gpg). The sample range was 93–317 mg/L (5.4–18.5 gpg), from moderately hard to very hard. An average is not a setting for every home.
USGS: hard >120; very hard >180 mg/L as CaCO₃
1.09mg/L
2025 average; range 0.11–2.13
4 mg/L MRDL
0.296–0.497mg/L
2025 range; average 0.395
4 mg/L MCL
ND–7.5µg/L
2025 range; average 3.0
10 µg/L MCL
ND–5.53mg/L
2025 range; average 2.39
10 mg/L MCL
548 mg/L average
2025 average; range 217–1,360
500 mg/L secondary guideline
ND–38µg/L
2025 range; average 10.1
100 µg/L MCL
52–170mg/L
2025 range; average 120
No limit listed in this table
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| What was measured | Reported amount | Sample year / source date | How to read it |
|---|---|---|---|
| Hardness | 237 mg/L average 2025 average: 237 mg/L as CaCO₃ (13.8 gpg). The sample range was 93–317 mg/L (5.4–18.5 gpg), from moderately hard to very hard. An average is not a setting for every home. | 2025View source ↗ | Very hard average |
| Chlorine | 1.09 mg/L2025 average; range 0.11–2.13 | 2025View source ↗ | Below disinfectant benchmark4 mg/L MRDL |
| Fluoride | 0.296–0.497 mg/L2025 range; average 0.395 | 2025View source ↗ | Below listed limit4 mg/L MCL |
| Arsenic | ND–7.5 µg/L2025 range; average 3.0 | 2025View source ↗ | Maximum below listed limit10 µg/L MCL |
| Nitrate as nitrogen | ND–5.53 mg/L2025 range; average 2.39 | 2025View source ↗ | Maximum below listed limit10 mg/L MCL |
| Total dissolved solids | 548 mg/L average 2025 average; range 217–1,360 | 2025View source ↗ | Average above aesthetic guideline500 mg/L secondary guideline |
| Total chromium | ND–38 µg/L2025 range; average 10.1 | 2025View source ↗ | Maximum below listed limit100 µg/L MCL |
| Sodium | 52–170 mg/L2025 range; average 120 | 2025View source ↗ | No high/low rating assignedNo limit listed in this table |
| pH | 6.94–8.27 2025 range; average 7.88 | 2025View source ↗ | Within aesthetic range6.5–8.5 secondary 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 on average. Separate filtration from scale control.
This is Glendale, Arizona, not Glendale, California. The city blends river water and groundwater. Its 93–317 mg/L hardness range means one average cannot describe every home or season. Total dissolved solids averaged above the aesthetic guideline; softening does not remove all dissolved solids.
A useful local question
This is Glendale, Arizona, not Glendale, California. The city blends river water and groundwater. Its 93–317 mg/L hardness range means one average cannot describe every home or season. Total dissolved solids averaged above the aesthetic guideline; softening does not remove all dissolved solids.
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.