Hardness
Very Hard
228 PPM · 13.3 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 Grant County.
At a glance
EPA quarter 2026Q2
Hardness
Very Hard
228 PPM · 13.3 GPG
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0.0018 mg/L
12% of action level
Utility match
4 systems
Serves 4,559 people system-wide
Hardness meter
Estimated local hardness
USGS hardness classification scale
228 PPM
Parts per million
228
mg/L as CaCO₃ equivalent
Grains per gallon
13.3
1 GPG ≈ 17.1 PPM
What this means at home
At 228 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
77
Nearest site
1.2 mi
Observation range
Jan 11, 2016–Jun 30, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: MILL CREEK NR MOUTH (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.
Petersburg median
228 PPM
About the same1 indexed ZIP readings · Range 228–228 PPM
West Virginia median
141 PPM
87 PPM higher219 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)
0.0018 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 0.0018
EPA limit 0.015
100% line = listed limit
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Consumer Confidence Rule | WV3301204 | Unaddressed | Oct 1, 2025 |
| Surface Water Treatment Rule | WV3301204 | Archived | Jun 1, 2025through Jun 30, 2025 |
| Chlorine | WV3301204 | Archived | Jun 1, 2025through Jun 30, 2025 |
| Interim Enhanced Surface Water Treatment Rule | WV3301204 | Resolved | Mar 1, 2025through Mar 31, 2025 |
| Revised Total Coliform Rule | WV3301207 | Archived | Jan 1, 2025through Jan 31, 2025 |
| Chlorine | WV3301206 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| Surface Water Treatment Rule | WV3301206 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| Revised Total Coliform Rule | WV3301206 | Resolved | Jun 1, 2024through Jun 30, 2024 |
| Public Notice | WV3301204 | Unaddressed | Feb 16, 2024 |
| TTHM | WV3301204 | Resolved | Oct 1, 2022through Dec 31, 2022 |
| TTHM | WV3301206 | Resolved | Sep 1, 2021through Nov 30, 2021 |
| Total Haloacetic Acids (HAA5) | WV3301206 | Resolved | Sep 1, 2021through Nov 30, 2021 |
| TTHM | WV3301207 | Resolved | Sep 1, 2021through Nov 30, 2021 |
| Revised Total Coliform Rule | WV3301209 | Resolved | Sep 1, 2021through Sep 30, 2021 |
| Chlorine | WV3301209 | Resolved | Jul 1, 2021through Sep 30, 2021 |
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 Petersburg ZIP 26847 using 228 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
228 PPM is 2× the high-hardness trigger used by this matcher.
Designed to reduce scale on fixtures, water heaters, glassware, and plumbing throughout the home.
Compare whole-house systemsAffiliate 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 228 PPM, or 13.3 grains per gallon, classified as very hard. This is not a household tap measurement.
At 228 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.