Accokeek Water Hardness & Quality Report (2026)
Water Hardness
11.1 grains per gallon
Source
reservoir
pH Level
8.3
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
491.1 mg/L
Est. Daily Cost
$0.51
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 Accokeek, your appliances are currently losing 25% efficiency due to mineral buildup.
| Appliance | In Accokeek | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.3 yrs | 8.5 yrs | -61% |
| Washing Machine | 6.6 yrs | 12 yrs | -45% |
| Water Heater | 8 yrs | 15 yrs | -47% |
Regional Water Comparison
How Accokeek compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Accokeek, Maryland | 189.5 mg/L | 10.4 ppt | 🔴 Very Hard | reservoir |
| Fort Washington, Maryland | 98.5 mg/L | 5.2 ppt | 🟡 Moderately Hard | reservoir |
| Bennsville, Maryland | 136.5 mg/L | 7.4 ppt | 🟠 Hard | reservoir |
| Fort Hunt, Virginia | 145 mg/L | 7.5 ppt | 🟠 Hard | reservoir |
| Mount Vernon, Virginia | 104.5 mg/L | 5.3 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Accokeek compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Accokeek | 189.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Accokeek home
Shop water softeners on Amazon.com →
What Makes Accokeek's Water Unique?
Local geology and source profile
Accokeek, Maryland, in Prince George's County — a Prince George's County unincorporated community adjacent to Fort Washington and Oxon Hill on the Potomac River in the southernmost DC Maryland suburbs — receives its water from WSSC Water, drawing from the Patuxent River and Potomac River through the south Maryland distribution.
The hard 189.5 mg/L hardness and TDS of 491.1 mg/L reflect the south Prince George's County supply's hard blended character — the Potomac River supply dominates in the southern county zone, and the Cambrian Tomstown Formation contributes calcareous mineral content from its limestone and dolostone in the Shenandoah-Potomac headwaters corridor (compare Fort Washington MD: 185/479 in Prince George's County comparable; Oxon Hill MD: 193/503 in Prince George's County comparable; Accokeek consistent hard from the same Prince George's County Potomac River Cretaceous supply). The Potomac watershed — Cretaceous Patuxent Formation (insoluble — primary dilutant), Precambrian Baltimore Gneiss (insoluble — secondary dilutant), and Quaternary Potomac River alluvium (calcareous — TDS contributor).
At 189.5 mg/L with TDS 491, Accokeek's water is hard — scale builds in appliances. Quarterly descaling is appropriate. The PFAS level of 10.4 ppt is very high — a certified filter with PFAS removal is strongly recommended. Review WSSC Water's annual water quality report.
Geology & Source: Accokeek in Prince George's County draws from the WSSC Water on the Patuxent River and Potomac River supply (Prince George's County, south Maryland) — the south Prince George's County supply draws from Cretaceous Patuxent Formation (insoluble) and Precambrian Baltimore Gneiss (insoluble) — Maryland Prince George's County Potomac River Cretaceous supply produces hard water at 189.5 mg/L with TDS 491.1 mg/L.