Hardness
Soft
26 PPM · 1.5 GPG
Local water dashboard
Official source aggregationA source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Greene County.
At a glance
EPA quarter 2026Q2
Hardness
Soft
26 PPM · 1.5 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0018 mg/L
12% of action level
Utility match
7 systems
Serves 2,834 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
26 PPM
Parts per million
26
mg/L as CaCO₃ equivalent
Grains per gallon
1.5
1 GPG ≈ 17.1 PPM
What this means at home
At 26 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.
USGS sites used
17
Nearest site
23 mi
Observation range
Jan 6, 2016–Dec 9, 2024
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: OCONEE R AT BARNETT SHOALS RD, NR WATKINSVILLE, GA (Stream).USGS source documentation ↗
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Greensboro median
26 PPM
About the same1 indexed ZIP readings · Range 26–26 PPM
Georgia median
40 PPM
14 PPM lower469 indexed ZIP readings · Range 3–207 PPM
EPA benchmark screen
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
0.0018 mg/L
Reported Dec 31, 2027
Copper (CU90)
1.4 mg/L
Reported Dec 31, 2003
Numerical coverage
3 comparable results
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.0018
EPA limit 0.015
Measured in mg/L
Local 1.4
EPA limit 1.3
Measured in PCI/L
Local 98
EPA limit 5
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Combined Radium (-226 and -228)Health-basedReported 98 PCI/L · MCL 5 | GA1330007 | Resolved | Jan 1, 2025through Mar 31, 2025 |
| E. COLI | GA1330007 | Resolved | Oct 9, 2024through Jun 23, 2025 |
| Revised Total Coliform Rule | GA1330016 | Resolved | Oct 1, 2024through Oct 31, 2024 |
| Lead and Copper Rule | GA1330048 | Resolved | Oct 1, 2024through Aug 15, 2025 |
| Revised Total Coliform Rule | GA1330011 | Resolved | Oct 1, 2024through Oct 31, 2024 |
| Combined Radium (-226 and -228)Health-basedReported 98 PCI/L · MCL 5 | GA1330007 | Resolved | Oct 1, 2024through Dec 31, 2024 |
| Lead and Copper Rule | GA1330007 | Resolved | Oct 1, 2024through Aug 29, 2025 |
| Gross Alpha, Excl. Radon and U | GA1330007 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Combined Uranium | GA1330007 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Combined Radium (-226 and -228)Health-basedReported 98 PCI/L · MCL 5 | GA1330007 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Combined Radium (-226 and -228) | GA1330007 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Combined Radium (-226 and -228)Health-basedReported 74 PCI/L · MCL 5 | GA1330007 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| Nitrate-NitriteHealth-basedReported 11 MG/L | GA1330078 | Resolved | Jan 1, 2022through Nov 14, 2022 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Matched to Greensboro ZIP 30642 using 26 PPM nearby hardness and 3 reported measurement benchmarks.
Drinking water protection
Copper (90th percentile), Combined Radium (-226 and -228) have a measured benchmark flag or active health-based SDWIS record in this profile.
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Frequently asked
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
Nearby USGS observations produce an estimate of 26 PPM, or 1.5 grains per gallon, classified as soft. This is not a household tap measurement.
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.