Hardness
Very hard394ppm
Dated utility analysis; 23 gpg
This is the February 19 analysis, not an annual average.
February 19, 2025View source
- 1Your water
- 2Your home
- 3Your system
Tippecanoe County, Indiana Water Quality Report
Showing utility report
Lafayette Water Works
2025 report; individual sample dates shown
For Lafayette Water Works (IN5279013). West Lafayette’s Indiana American Water system has a separate report.
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 MRDL1.0ppm
CCR’s highest running annual average
2025View source
TTHMs
Below 80 ppb MCL4.5ppb
Highest reported locational running annual average
2024–2025View source
HAA5
Below 60 ppb MCL3.3ppb
Highest reported locational running annual average
2024–2025View source
Fluoride
Below 4 ppm MCL0.424ppm
Highest result
February 16, 2023View source
Lead
Below the report’s 15 ppb action level3.8ppb
90th percentile at sampled taps
A utility percentile is not a test at your tap.
2022–2025View source
Copper
Below the report’s 1.3 ppm action level0.607ppm
90th percentile at sampled taps
1 sampled site exceeded the action level.
2022–2025View source
Nitrate
Below 10 ppm MCL1.51ppm
Highest result
April 14, 2024View 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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The figures below are provider-specific. They are not a countywide average.
| Utility | Hardness | Hardness source |
|---|---|---|
| 394 ppm · very hard | February 19, 2025 analysis |
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 | 394 ppmDated utility analysis; 23 gpg | February 19, 2025View source ↗ | Very hardThis is the February 19 analysis, not an annual average. |
| Chlorine | 1.0 ppmCCR’s highest running annual average | 2025View source ↗ | Below 4 ppm MRDL |
| TTHMs | 4.5 ppbHighest reported locational running annual average | 2024–2025View source ↗ | Below 80 ppb MCL |
| HAA5 | 3.3 ppbHighest reported locational running annual average | 2024–2025View source ↗ | Below 60 ppb MCL |
| Fluoride | 0.424 ppmHighest result | February 16, 2023View source ↗ | Below 4 ppm MCL |
| Lead | 3.8 ppb90th percentile at sampled taps | 2022–2025View source ↗ | Below the report’s 15 ppb action levelA utility percentile is not a test at your tap. |
| Copper | 0.607 ppm90th percentile at sampled taps | 2022–2025View source ↗ | Below the report’s 1.3 ppm action level1 sampled site exceeded the action level. |
| Nitrate | 1.51 ppmHighest result | April 14, 2024View 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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Choose the system size, keep useful existing equipment, and review your filtration goals.
Source water. Lafayette Water Works uses groundwater. Its separate analysis sheet reports combined chloramines; the CCR labels the disinfectant result chlorine.
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What this means for your home
The hardness sheet is dated February 19, 2025. The CCR also includes older chemical samples and dated monitoring notices; those dates stay visible so a historical result is not presented as a current home test.
No. The measured cards summarize Lafayette Water Works. Indiana American Water publishes a separate West Lafayette report. Use the provider on your bill, not the city name alone.
A useful local question
Does this report cover both Lafayette and West Lafayette?
No. The measured cards summarize Lafayette Water Works. Indiana American Water publishes a separate West Lafayette report. Use the provider on your bill, not the city name alone.
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.
- Lafayette Water Works ↗2025 report; individual sample dates shown
- Lafayette Water Works · Hardness source ↗
- 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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