Hardness
Hard average130ppm
2025 average; approximately 7.6 gpg
Published range: 94–174 ppm. Utility treatment includes softening.
2025View source
- 1Your water
- 2Your home
- 3Your system
Allen County, Indiana Water Quality Report
Showing utility report
Fort Wayne City Utilities — Three Rivers
2026 report covering 2025; sample dates shown
For the Fort Wayne City Utilities system. Its treated-water results should not be applied to separate Allen County utilities or private wells.
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 4 ppm MRDL2.10ppm
Report’s highest level
Range: 1.54–2.10 ppm.
2025View source
TTHMs
Below 80 ppb MCL22.5ppb
Highest reported locational running annual average
2025View source
HAA5
Below 60 ppb MCL18.4ppb
Highest reported locational running annual average
2025View source
Fluoride
Below 4 ppm MCL0.85ppm
Maximum reported result
2025View source
Lead
Below the report’s 15 ppb action level4.26ppb
90th percentile at sampled taps
3 of 106 sites exceeded the action level. July–December percentile: 2.61 ppb.
Jan–June 2025View source
Copper
Below the report’s 1.3 ppm action level0.0549ppm
90th percentile at sampled taps
A utility percentile is not a test at your tap.
Jan–June 2025View source
Nitrate
Below 10 ppm MCL4.774ppm
Highest result, measured as nitrogen
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.
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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 |
|---|---|---|
| 130 ppm average · hard | 2025 |
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.
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| What was measured | Reported amount | Sample year / source date | How to read it |
|---|---|---|---|
| Hardness | 130 ppm2025 average; approximately 7.6 gpg | 2025View source ↗ | Hard averagePublished range: 94–174 ppm. Utility treatment includes softening. |
| Chlorine | 2.10 ppmReport’s highest level | 2025View source ↗ | Below 4 ppm MRDLRange: 1.54–2.10 ppm. |
| TTHMs | 22.5 ppbHighest reported locational running annual average | 2025View source ↗ | Below 80 ppb MCL |
| HAA5 | 18.4 ppbHighest reported locational running annual average | 2025View source ↗ | Below 60 ppb MCL |
| Fluoride | 0.85 ppmMaximum reported result | 2025View source ↗ | Below 4 ppm MCL |
| Lead | 4.26 ppb90th percentile at sampled taps | Jan–June 2025View source ↗ | Below the report’s 15 ppb action level3 of 106 sites exceeded the action level. July–December percentile: 2.61 ppb. |
| Copper | 0.0549 ppm90th percentile at sampled taps | Jan–June 2025View source ↗ | Below the report’s 1.3 ppm action levelA utility percentile is not a test at your tap. |
| Nitrate | 4.774 ppmHighest result, measured as nitrogen | 2025View source ↗ | Below 10 ppm MCL |
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. St. Joseph River water is treated at the Three Rivers Water Filtration Plant, including lime softening.
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More about your local water
What this means for your home
The St. Joseph River supply and Three Rivers treatment process apply to the named utility. Addresses served by a separate municipality or a well require their own source information.
No. Fort Wayne treats its water with lime, but the 2025 report still gives an average hardness of 130 ppm. Your incoming-water test and scale concerns should determine final softener settings.
A useful local question
Does Fort Wayne’s softening remove the need to check home hardness?
No. Fort Wayne treats its water with lime, but the 2025 report still gives an average hardness of 130 ppm. Your incoming-water test and scale concerns should determine final softener 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.
Official utility reports
Confirm the exact system on your water bill. Choose Other / not sure when your supplier is not summarized here.
- Fort Wayne City Utilities — Three Rivers ↗2026 report covering 2025; sample dates shown
- USGS hardness classification
- EPA PFAS benchmarks and implementation
Sources reviewed November 10, 2026. Individual sampling dates are shown with each result.
Your water → your home → your system
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