Hardness
Moderately Hard
105 PPM · 6.1 GPG
Local water dashboard
Official source aggregationWater quality in Inwood, WV 25428
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Berkeley County.
2 active health-based violations
- Primary matched system
- G And E Mhp
- Source water
- Groundwater influenced by surface water + Groundwater
- County
- Berkeley County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
Review needed
2 active health-based records
Lead 90th percentile
0.003 mg/L
20% of action level
Utility match
2 systems
Serves 235 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
105 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
105
mg/L as CaCO₃ equivalent
Grains per gallon
6.1
1 GPG ≈ 17.1 PPM
What this means at home
At 105 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
157
Nearest site
5.4 mi
Observation range
Jan 7, 2016–Jun 30, 2026
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: OPEQUON CREEK NEAR MARTINSBURG, WV (Stream).USGS source documentation ↗
Regional context
Is 25428 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Inwood median
105 PPM
About the same3 indexed ZIP readings · Range 105–108.5 PPM
West Virginia median
141 PPM
36 PPM lower219 indexed ZIP readings · Range 85.5–265 PPM
EPA benchmark screen
Contaminant snapshot
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
1 pass
Lead (PB90)
0.003 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.
Lead (90th percentile)
Measured in mg/L
Local 0.003
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 7
- Health-based
- 4
- Active health-based
- 2
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | WV3300243 | Resolved | Nov 11, 2024through Dec 26, 2024 |
| Revised Total Coliform RuleHealth-based | WV3300243 | Unaddressed | Aug 13, 2024 |
| Groundwater RuleHealth-based | WV3300201 | Resolved | Jul 1, 2024through Nov 21, 2023 |
| Groundwater Rule | WV3300201 | Archived | Jul 1, 2024through Jul 31, 2024 |
| Surface Water Treatment RuleHealth-based | WV3300201 | Unaddressed | Oct 18, 2023 |
| Groundwater RuleHealth-based | WV3300243 | Resolved | Aug 15, 2021through Aug 1, 2022 |
| Lead and Copper Rule | WV3300243 | Unaddressed | Dec 30, 2014 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Your personalized water action plan
Matched to Inwood ZIP 25428 using 105 PPM nearby hardness and 1 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Revised Total Coliform Rule, Surface Water Treatment Rule have 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.
Explore under-sink filtrationAffiliate 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.
Nearby indexed reports
Compare ZIPs in Inwood
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Inwood
Is tap water safe in Inwood?+
EPA ECHO reports 2 active health-based violations among the associated community water systems. Review the affected utility's current notice and Consumer Confidence Report.
How hard is the water?+
Nearby USGS observations produce an estimate of 105 PPM, or 6.1 grains per gallon, classified as moderately hard. This is not a household tap measurement.
Do I need a water softener?+
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.