Seabrook 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
286 mg/L
Est. Daily Cost
$0.37
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 Seabrook, your appliances are currently losing 18% efficiency due to mineral buildup.
| Appliance | In Seabrook | 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 Seabrook compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Seabrook, Maryland | 137.5 mg/L | 7.4 ppt | 🟠 Hard | reservoir |
| Lanham-Seabrook, Maryland | 129 mg/L | 7 ppt | 🟠 Hard | reservoir |
| New Carrollton, Maryland | 123 mg/L | 6.6 ppt | 🟠 Hard | reservoir |
| Glenn Dale, Maryland | 143 mg/L | 7.7 ppt | 🟠 Hard | reservoir |
| Greenbelt, Maryland | 169.5 mg/L | 9.2 ppt | 🟠 Hard | reservoir |
National Benchmark
How Seabrook compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Seabrook | 137.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Seabrook's Water Unique?
Local geology and source profile
Seabrook, Maryland, in Prince George's County — an unincorporated Prince George's County community adjacent to Lanham and Greenbelt in the central Prince George's County corridor — receives its municipal water from WSSC Water (Washington Suburban Sanitary Commission), drawing from the Patuxent River (Patuxent WFP, Laurel Maryland) or the Potomac River (Potomac WFP) through the WSSC distribution system.
The moderately hard 137.5 mg/L hardness and TDS of 286 mg/L are virtually identical to the nearby Glassmanor reading (137 mg/L, 284.4), confirming that Prince George's County WSSC supply is consistent across the county distribution zones. The Patuxent River at the WSSC intake drains the Maryland Piedmont — Ordovician Sykesville Formation (slightly calcareous metamorphic), the Precambrian Glenarm Series (insoluble), and minor Triassic calcareous shale.
At 137.5 mg/L, Seabrook's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 7.4 ppt warrants a certified drinking water filter — the Goddard Space Flight Center (Prince George's County — aerospace manufacturing PFAS), Joint Base Andrews, and the suburban Prince George's County PFAS complex contribute to Seabrook's readings.
Geology & Source: Seabrook in Prince George's County draws from WSSC Water on the Patuxent River (Prince George's County, Maryland) — the Patuxent drains the Maryland Piedmont (Ordovician Sykesville Formation, Precambrian Glenarm Series — calcareous-crystalline) — Maryland Prince George's County Patuxent River Piedmont watershed produces moderately hard water at 137.5 mg/L with TDS 286 mg/L in this Prince George's County Maryland community.