Hardness
Soft annual average21.2mg/L
Gainesville lists 21.2 mg/L in its annual-average mineral table, equivalent to about 1.2 gpg.
USGS: soft ≤60; moderately hard 61–120 mg/L as CaCO₃.
2025 · annual averageView source
- 1Your water
- 2Your home
- 3Your system
Hall County water quality report
Showing utility report
City of Gainesville Department of Water Resources
2025 water quality report
Public water system GA1390001. Use these measurements only for this system; they do not describe private wells or every address in Hall County.
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 mg/L disinfectant limit1.41mg/L
Reported residual; range 0.0–2.20.
MRDL in the utility report: 4 mg/L.
2025View source
Fluoride
Below 4 mg/L limit0.70mg/L
Reported detected level; range 0.05–0.90. The report separately gives 0.53 ppm as average fluoride added.
MCL in the utility report: 4 mg/L.
2025View source
Total trihalomethanes (TTHM)
Below 80 µg/L limit26.53µg/L
Highest locational running annual average; table range 20.7–29.1.
MCL in the utility report: 80 µg/L.
2025View source
Haloacetic acids (HAA5)
Below 60 µg/L limit18.4µg/L
Highest locational running annual average; table range 15.5–20.1.
MCL in the utility report: 60 µg/L.
2025View source
Nitrate/nitrite
Below 10 mg/L limit0.4245mg/L
Reported result; range 0.292–0.557.
MCL in the utility report: 10 mg/L.
2025View source
Lead
Below 10 µg/L action level0.34µg/L
90th percentile; no taps over the action level used in this report.
AL in the utility report: 10 µg/L.
Fall 2024View source
Turbidity
Below 1 NTU ceiling0.30NTU
Highest value reported.
The utility reports meeting its treatment-technique requirement.
2025View source
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The figures below are provider-specific. They are not a countywide average.
| Utility | Hardness | Hardness source |
|---|---|---|
| 21.2 mg/L · Soft annual average | 2025 · annual average |
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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 | 21.2 mg/LGainesville lists 21.2 mg/L in its annual-average mineral table, equivalent to about 1.2 gpg. | 2025 · annual averageView source ↗ | Soft annual average |
| Chlorine | 1.41 mg/LReported residual; range 0.0–2.20. | 2025View source ↗ | Below 4 mg/L disinfectant limitMRDL in the utility report: 4 mg/L. |
| Fluoride | 0.70 mg/LReported detected level; range 0.05–0.90. The report separately gives 0.53 ppm as average fluoride added. | 2025View source ↗ | Below 4 mg/L limitMCL in the utility report: 4 mg/L. |
| Total trihalomethanes (TTHM) | 26.53 µg/LHighest locational running annual average; table range 20.7–29.1. | 2025View source ↗ | Below 80 µg/L limitMCL in the utility report: 80 µg/L. |
| Haloacetic acids (HAA5) | 18.4 µg/LHighest locational running annual average; table range 15.5–20.1. | 2025View source ↗ | Below 60 µg/L limitMCL in the utility report: 60 µg/L. |
| Nitrate/nitrite | 0.4245 mg/LReported result; range 0.292–0.557. | 2025View source ↗ | Below 10 mg/L limitMCL in the utility report: 10 mg/L. |
| Lead | 0.34 µg/L90th percentile; no taps over the action level used in this report. | Fall 2024View source ↗ | Below 10 µg/L action levelAL in the utility report: 10 µg/L. |
| Turbidity | 0.30 NTUHighest value reported. | 2025View source ↗ | Below 1 NTU ceilingThe utility reports meeting its treatment-technique requirement. |
| Copper | 0.045 mg/L90th percentile; no taps over the action level. | Fall 2024View source ↗ | Below 1.3 mg/L action levelAL in the utility report: 1.3 mg/L. |
| Chlorite | 0.083 mg/LReported level; range 0.02–0.38. | 2025View source ↗ | Below 1 mg/L limitMCL in the utility report: 1 mg/L. |
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 means a regulatory contaminant limit; MRDL is a disinfectant limit. Lead and copper use tap-sampling action levels. TTHM and HAA5 compliance is assessed using running averages at specific locations, not the highest single sample.
PFAS results depend on the compound, sample location, year and reporting limit. A missing result or nondetect is not proof of zero PFAS. EPA PFAS benchmarks and implementation ↗
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Source water. Gainesville draws drinking water from Lake Lanier. These are the city utility’s measurements for system GA1390001, including customers it serves outside city limits.
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More about your local water
What this means for your home
Gainesville reports an annual average hardness of 21.2 mg/L.
Check the water-system name even if your home is outside Gainesville city limits. The report’s hardness is an annual average; its residential lead and copper results come from fall 2024.
A useful local question
Should I add a softener based on Gainesville’s report?
A 21.2 mg/L average does not support adding a softener for scale by default. Select filtration for your specific goals and use an incoming-water test if your home appears different.
Sources and methodology
Results retain the utility, sample year, units and comparison used in the source. Hardness is shown separately as a utility measurement, utility guidance or regional estimate. USGS categories describe mineral content, not drinking-water safety.
Different name on your water bill?
Use the published report for your own retail water system. These sources can help identify the right report; a county or ZIP alone cannot confirm service.
- City of Gainesville Department of Water Resources ↗2025 water quality report
- USGS hardness classification
- EPA PFAS benchmarks and implementation
Sources reviewed November 5, 2026.
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