Martinsburg Water Hardness & Quality Report (2026)
Water Hardness
11.7 grains per gallon
Source
river
pH Level
8.3
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
510.8 mg/L
Est. Daily Cost
$0.54
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Martinsburg, your appliances are currently losing 27% efficiency due to mineral buildup.
| Appliance | In Martinsburg | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3 yrs | 8.5 yrs | -65% |
| Washing Machine | 6.2 yrs | 12 yrs | -48% |
| Water Heater | 7.6 yrs | 15 yrs | -49% |
Regional Water Comparison
How Martinsburg compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Martinsburg, West Virginia | 201 mg/L | 9.1 ppt | 🔴 Very Hard | river |
| Hagerstown, Maryland | 182.5 mg/L | 10 ppt | 🔴 Very Hard | reservoir |
| Winchester, Virginia | 103 mg/L | 5.2 ppt | 🟡 Moderately Hard | reservoir |
| Leesburg, Virginia | 142 mg/L | 7.3 ppt | 🟠 Hard | reservoir |
| Ballenger Creek, Maryland | 109 mg/L | 5.8 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Martinsburg compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Martinsburg | 201 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Martinsburg's Water Unique?
Local geology and source profile
Martinsburg, West Virginia, in Berkeley County — the Berkeley County seat adjacent to Inwood and Hedgesville in the Eastern Panhandle of West Virginia on the Opequon Creek, the Shenandoah Valley's northernmost extension — receives its municipal water from the Martinsburg Water Division, drawing from the Opequon Creek (Berkeley County) through the Martinsburg treatment plant.
The very hard 201 mg/L hardness and elevated TDS of 510.8 mg/L reflect the Shenandoah Valley's classic Ordovician-Cambrian carbonate character — one of the hardest water corridors in the eastern USA. The Opequon Creek drains the Great Valley (Shenandoah-Great Valley corridor) — Ordovician Edinburg Limestone and New Market Limestone (high-purity calcareous shale-limestone — the dominant hardness source), Cambrian Conococheague Limestone (massive bedded limestone), and the Cambrian Elbrook Dolomite. The cumulative Ordovician-Cambrian carbonate loading produces the very hard water characteristic of all Shenandoah Valley supplies.
At 201 mg/L, Martinsburg's water is very hard — scale builds rapidly in kettles and appliances, and a water softener is strongly recommended for appliance protection. Monthly descaling of all heating elements is appropriate. The PFAS level of 9.1 ppt warrants a certified reverse osmosis drinking water filter — Martinsburg VA Medical Center (AFFF), Shepherd University area industrial legacy, and the Eastern Panhandle-Shenandoah Valley PFAS background contribute to Martinsburg's elevated readings.
Geology & Source: Martinsburg in Berkeley County draws from the Martinsburg Water Division on the Opequon Creek (Berkeley County, West Virginia) — the Opequon drains the Shenandoah Valley (Ordovician Edinburg Limestone, Cambrian Conococheague Limestone) — West Virginia Berkeley County Shenandoah Valley Ordovician-Cambrian carbonate watershed produces very hard water at 201 mg/L with TDS 510.8 mg/L in this Berkeley County West Virginia city.