Forestville Water Hardness & Quality Report (2026)
Water Hardness
5.5 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
157.8 mg/L
Est. Daily Cost
$0.25
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 Forestville, your appliances are currently losing 13% efficiency due to mineral buildup.
| Appliance | In Forestville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.5 yrs | 8.5 yrs | -24% |
| Washing Machine | 10.1 yrs | 12 yrs | -16% |
| Water Heater | 11.8 yrs | 15 yrs | -21% |
Regional Water Comparison
How Forestville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Forestville, Maryland | 95 mg/L | 5 ppt | 🟡 Moderately Hard | reservoir |
| Suitland, Maryland | 88 mg/L | 4.6 ppt | 🟡 Moderately Hard | reservoir |
| Suitland-Silver Hill, Maryland | 140 mg/L | 7.6 ppt | 🟠 Hard | reservoir |
| Camp Springs, Maryland | 103 mg/L | 5.5 ppt | 🟡 Moderately Hard | reservoir |
| Kettering, Maryland | 190 mg/L | 10.4 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Forestville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Forestville | 95 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Forestville's Water Unique?
Local geology and source profile
Forestville, Maryland, in Prince George's County — a Prince George's County unincorporated community adjacent to Upper Marlboro and Clinton in central Maryland — receives its water from the WSSC Water, drawing from the Patuxent River or Potomac River (Prince George's County) through the central Maryland distribution.
The moderately soft 95 mg/L hardness and TDS of 157.8 mg/L are softer than expected for the WSSC supply (Kettering MD: 190/493; Kemp Mill MD: 183/463) — Forestville's Prince George's County south distribution zone may draw from a Patuxent-dominated blend with less Potomac calcareous accumulation, producing softer water than the Montgomery County WSSC communities. The Patuxent-Potomac system at Prince George's County — Cretaceous Patuxent Formation (calcareous — primary hardness contributor), Precambrian Baltimore Gneiss (insoluble — dilutant), and Quaternary Coastal Plain alluvium (calcareous — minor TDS).
At 95 mg/L, Forestville's water is moderately soft. Appliances last well with standard maintenance. Annual descaling is appropriate. The PFAS level of 5.0 ppt warrants a certified drinking water filter — the Prince George's County central Maryland military (Andrews AFB) and urban-industrial corridor contribute to Forestville's elevated readings.
Geology & Source: Forestville in Prince George's County draws from the WSSC Water on the Patuxent River or Potomac River (Prince George's County, central Maryland) — the Patuxent-Potomac watershed at Prince George's County drains the Maryland Piedmont (Cretaceous Patuxent Formation — calcareous) and Precambrian Baltimore Gneiss (insoluble) — Maryland Prince George's County WSSC Patuxent Cretaceous supply produces moderately soft water at 95 mg/L with TDS 157.8 mg/L.