Hardness
Moderately Hard
103.5 PPM · 6.1 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 Mcdowell County.
At a glance
EPA quarter 2026Q2
Hardness
Moderately Hard
103.5 PPM · 6.1 GPG
Compliance screen
Review needed
1 active health-based record
Lead 90th percentile
0.0039 mg/L
26% of action level
Utility match
1 system
Serves 1,220 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
103.5 PPM
Parts per million
103.5
mg/L as CaCO₃ equivalent
Grains per gallon
6.1
1 GPG ≈ 17.1 PPM
What this means at home
At 103.5 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
66
Nearest site
2.2 mi
Observation range
Jul 6, 2016–Apr 22, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: Mcd-0214 (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.
War median
104 PPM
About the same2 indexed ZIP readings · Range 103.5–103.5 PPM
West Virginia median
141 PPM
37 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)
0.0039 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 0.0039
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Consumer Confidence Rule | WV3302472 | Unaddressed | Oct 1, 2025 |
| Total Haloacetic Acids (HAA5) | WV3302472 | Archived | Oct 1, 2025through Dec 31, 2025 |
| TTHM | WV3302472 | Archived | Oct 1, 2025through Dec 31, 2025 |
| Consumer Confidence Rule | WV3302472 | Unaddressed | Jul 1, 2025 |
| Public Notice | WV3302472 | Unaddressed | Apr 12, 2025 |
| Public Notice | WV3302472 | Unaddressed | Feb 15, 2025 |
| Public Notice | WV3302472 | Unaddressed | Feb 15, 2025 |
| Groundwater RuleHealth-based | WV3302472 | Unaddressed | Jan 23, 2025 |
| Public Notice | WV3302472 | Resolved | Oct 15, 2023through Dec 6, 2023 |
| Consumer Confidence Rule | WV3302472 | Resolved | Oct 1, 2023through Jan 22, 2024 |
| TTHM | WV3302472 | Archived | Oct 1, 2023through Dec 31, 2023 |
| Total Haloacetic Acids (HAA5) | WV3302472 | Archived | Oct 1, 2023through Dec 31, 2023 |
| Public Notice | WV3302472 | Resolved | Aug 12, 2023through Dec 6, 2023 |
| Public Notice | WV3302472 | Resolved | Jul 15, 2023through Dec 6, 2023 |
| Consumer Confidence Rule | WV3302472 | Unaddressed | Jul 1, 2023 |
| Public Notice | WV3302472 | Resolved | Feb 12, 2023through Dec 6, 2023 |
| Public Notice | WV3302472 | Resolved | Feb 12, 2023through Dec 6, 2023 |
| TTHM | WV3302472 | Archived | Jan 1, 2023through Mar 31, 2023 |
| Total Haloacetic Acids (HAA5) | WV3302472 | Archived | Jan 1, 2023through Mar 31, 2023 |
| Public Notice | WV3302472 | Resolved | Nov 16, 2022through Dec 6, 2023 |
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 War ZIP 24892 using 103.5 PPM nearby hardness and 1 reported measurement benchmarks.
Drinking water protection
Groundwater Rule has a measured benchmark flag or active health-based SDWIS record in this profile.
A certified multi-stage RO system targets a broader range of dissolved contaminants at the kitchen tap.
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Nearby indexed reports
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
EPA ECHO reports 1 active health-based violation among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
Nearby USGS observations produce an estimate of 103.5 PPM, or 6.1 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.