Hardness
Moderately Hard
110 PPM · 6.4 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 Mason County.
At a glance
EPA quarter 2026Q2
Hardness
Moderately Hard
110 PPM · 6.4 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0053 mg/L
35% of action level
Utility match
1 system
Serves 1,679 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
110 PPM
Parts per million
110
mg/L as CaCO₃ equivalent
Grains per gallon
6.4
1 GPG ≈ 17.1 PPM
What this means at home
At 110 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
50
Nearest site
12.6 mi
Observation range
Jun 1, 2016–Aug 17, 2023
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: OH5300612 Meigs 01010 Production Well 0004 (Well).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.
Mason median
110 PPM
About the same1 indexed ZIP readings · Range 110–110 PPM
West Virginia median
141 PPM
31 PPM lower219 indexed ZIP readings · Range 85.5–265 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)
0.0053 mg/L
Reported Dec 31, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Measured in mg/L
Local 0.0053
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | WV3302708 | Unaddressed | Nov 15, 2025 |
| Groundwater Rule | WV3302708 | Archived | Oct 1, 2025through Oct 31, 2025 |
| Lead and Copper Rule | WV3302708 | Unaddressed | Oct 1, 2025 |
| Public Notice | WV3302708 | Unaddressed | Aug 14, 2025 |
| Consumer Confidence Rule | WV3302708 | Resolved | Jul 1, 2025through Jul 24, 2025 |
| Public Notice | WV3302708 | Unaddressed | Jun 15, 2025 |
| Chlorine | WV3302708 | Resolved | Apr 1, 2025through Apr 30, 2025 |
| Nitrate | WV3302708 | Archived | Apr 1, 2025through Jun 30, 2025 |
| Chlorine | WV3302708 | Resolved | Mar 1, 2025through Mar 31, 2025 |
| Consumer Confidence Rule | WV3302708 | Unaddressed | Jul 1, 2024 |
| Nitrate | WV3302708 | Resolved | Jul 1, 2024through Sep 30, 2024 |
| Chlorine | WV3302708 | Resolved | Apr 1, 2024through Apr 30, 2024 |
| Nitrate | WV3302708 | Resolved | Apr 1, 2024through Jun 30, 2024 |
| Public Notice | WV3302708 | Resolved | Aug 13, 2023through Dec 6, 2023 |
| Nitrate | WV3302708 | Resolved | Apr 1, 2023through Jun 30, 2023 |
| Public Notice | WV3302708 | Resolved | Mar 16, 2023through Dec 6, 2023 |
| Lead and Copper Rule | WV3302708 | Unaddressed | Jan 1, 2023 |
| Lead and Copper Rule | WV3302708 | Unaddressed | Sep 29, 2022 |
| Public Notice | WV3302708 | Resolved | May 15, 2022through Mar 21, 2022 |
| Nitrate | WV3302708 | Resolved | Apr 1, 2022through Jun 30, 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 Mason ZIP 25260 using 110 PPM nearby hardness and 1 reported measurement benchmarks.
No urgent match
This profile does not trigger a treatment recommendation. Test at the tap before investing in equipment.
Affiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.
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 110 PPM, or 6.4 grains per gallon, classified as moderately hard. This is not a household tap measurement.
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.