Bennsville Water Hardness & Quality Report (2026)
Water Hardness
8 grains per gallon
Source
reservoir
pH Level
7.9
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
283 mg/L
Est. Daily Cost
$0.36
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 Bennsville, your appliances are currently losing 18% efficiency due to mineral buildup.
| Appliance | In Bennsville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.1 yrs | 8.5 yrs | -40% |
| Washing Machine | 8.5 yrs | 12 yrs | -29% |
| Water Heater | 10.1 yrs | 15 yrs | -33% |
Regional Water Comparison
How Bennsville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Bennsville, Maryland | 136.5 mg/L | 7.4 ppt | 🟠 Hard | reservoir |
| Accokeek, Maryland | 189.5 mg/L | 10.4 ppt | 🔴 Very Hard | reservoir |
| Saint Charles, Maryland | 196 mg/L | 10.8 ppt | 🔴 Very Hard | reservoir |
| Waldorf, Maryland | 182 mg/L | 10 ppt | 🔴 Very Hard | reservoir |
| St. Charles, Maryland | 138.5 mg/L | 7.5 ppt | 🟠 Hard | reservoir |
National Benchmark
How Bennsville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Bennsville | 136.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Bennsville's Water Unique?
Local geology and source profile
Bennsville, Maryland, in Charles County — a Charles County unincorporated community adjacent to Waldorf and White Plains in southern Maryland — receives its water from the Charles County Utilities or Washington Suburban Sanitary Commission, drawing from the Mattawoman Creek watershed and Potomac River through the southern Maryland distribution.
The hard 136.5 mg/L hardness and TDS of 283 mg/L reflect the Charles County Potomac-Mattawoman supply's hard calcareous character — the Cretaceous Potomac Group calcareous fluvial sediments and Tertiary Chesapeake Group calcareous marine deposits both contribute dissolved calcium and magnesium to the southern Maryland Coastal Plain water supply (compare Waldorf MD: 134/278 in Charles County comparable; White Plains MD: 138/288 in Charles County comparable; Bennsville consistent hard from the same Charles County Mattawoman-Potomac Cretaceous calcareous supply). The Mattawoman watershed at Charles County — Cretaceous Potomac Group (slightly calcareous — primary hardness contributor), Tertiary Chesapeake Group (calcareous — secondary contributor), and Holocene Tidal Potomac alluvium (calcareous — TDS contributor).
At 136.5 mg/L with TDS 283, Bennsville's water is hard — scale builds in appliances and fixtures over months. Quarterly descaling is appropriate. The PFAS level of 7.4 ppt warrants a certified drinking water filter — the Charles County southern Maryland military (Indian Head Naval Surface Warfare Center) and industrial sources contribute to Bennsville's elevated PFAS readings.
Geology & Source: Bennsville in Charles County draws from the Charles County Water on the Mattawoman Creek reservoir (Charles County, south Maryland) — the Mattawoman watershed at Charles County drains Cretaceous Potomac Group (slightly calcareous) and Tertiary Chesapeake Group (calcareous) — Maryland Charles County Mattawoman Creek Cretaceous calcareous supply produces hard water at 136.5 mg/L with TDS 283 mg/L.