Hyattsville Water Hardness & Quality Report (2026)
Water Hardness
8.2 grains per gallon
Source
reservoir
pH Level
7.9
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
296.6 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 Hyattsville, your appliances are currently losing 19% efficiency due to mineral buildup.
| Appliance | In Hyattsville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5 yrs | 8.5 yrs | -41% |
| Washing Machine | 8.4 yrs | 12 yrs | -30% |
| Water Heater | 10 yrs | 15 yrs | -33% |
Regional Water Comparison
How Hyattsville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Hyattsville, Maryland | 140.5 mg/L | 7.6 ppt | 🟠 Hard | reservoir |
| College Park, Maryland | 183 mg/L | 10 ppt | 🔴 Very Hard | reservoir |
| East Riverdale, Maryland | 153 mg/L | 8.3 ppt | 🟠 Hard | reservoir |
| Chillum, Maryland | 155 mg/L | 8.4 ppt | 🟠 Hard | reservoir |
| Langley Park, Maryland | 89 mg/L | 4.7 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Hyattsville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Hyattsville | 140.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Hyattsville's Water Unique?
Local geology and source profile
Hyattsville, Maryland, in Prince George's County — a Prince George's County city adjacent to College Park and Mount Rainier, a gateway to Washington DC immediately outside the DC boundary on the Baltimore-Washington Parkway corridor — receives its municipal water from WSSC Water (Washington Suburban Sanitary Commission), drawing from the Patuxent River (Rocky Gorge and Triadelphia Reservoirs) and the Potomac River supply.
The moderately hard 140.5 mg/L hardness and TDS of 296.6 mg/L are harder than the Langley Park WSSC reading (89 mg/L) and Greater Upper Marlboro (121.5 mg/L) — suggesting the Hyattsville distribution zone receives a greater Potomac fraction in the WSSC blend. The Potomac River supply (harder — Appalachian carbonate drainage) contributes more significantly in the Hyattsville zone, while the Patuxent supply (softer — Piedmont crystalline drainage) dominates in the more central Prince George's County zones.
At 140.5 mg/L, Hyattsville's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and bathroom fixtures develop calcium deposits. Quarterly descaling is appropriate. The PFAS level of 7.6 ppt warrants a certified drinking water filter — Joint Base Andrews (Prince George's County — AFFF PFAS source in the Patuxent watershed), the Prince George's County industrial corridor, and the DC metro PFAS complex contribute to Hyattsville's elevated readings.
Geology & Source: Hyattsville in Prince George's County draws from WSSC Water on the Patuxent River (Rocky Gorge Reservoir, Prince George's-Montgomery County) and Potomac River — the blended WSSC supply accesses Precambrian Wissahickon Schist (Piedmont, Patuxent) and Cambrian-Ordovician limestone (Great Valley, Potomac) — Maryland WSSC Piedmont-Appalachian blended watershed produces moderately hard water at 140.5 mg/L with TDS 297 mg/L in this Prince George's County Maryland city.