Travilah Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
reservoir
pH Level
7.9
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
281.6 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · 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 Travilah, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Travilah | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Travilah compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Travilah, Maryland | ≈ 120–179 mg/L | 7.4 ppt | 🟠 Hard | reservoir |
| North Potomac, Maryland | ≈ 180+ mg/L | 7.6 ppt | 🔴 Very Hard | reservoir |
| Potomac, Maryland | ≈ 120–179 mg/L | 6.1 ppt | 🟠 Hard | groundwater |
| Great Falls, Virginia | ≈ 120–179 mg/L | 8.8 ppt | 🟠 Hard | reservoir |
| Lowes Island, Virginia | ≈ 120–179 mg/L | 5.3 ppt | 🟠 Hard | reservoir |
National Benchmark
How Travilah compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Travilah | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Travilah's Water Unique?
Local geology and source profile
Travilah, Maryland, receives its drinking water from the Washington Suburban Sanitary Commission (WSSC Water). The WSSC draws raw water from two main surface sources: the Potomac River, treated at the Potomac Water Filtration Plant, and the Patuxent River, treated at the Patuxent Water Filtration Plant. These facilities employ coagulation, sedimentation, filtration, and disinfection processes before supplying the water to Travilah and the surrounding Potomac census-designated place. The combined supply originates from the Potomac and Patuxent River watersheds, which span varied geological terrains from the Piedmont to the Atlantic Coastal Plain.
The Potomac watershed flows through ancient metamorphic and igneous rocks, including schists and gneisses, while the Patuxent watershed crosses Cretaceous-era sedimentary deposits like sands and clays. Upstream tributaries in the Appalachian Highlands contribute minerals from limestone and dolomite. This geological mix, particularly contact with carbonate-rich bedrock and sediments, results in a moderately mineralized surface water supply. Unlike groundwater from confined aquifers, this river-based system's natural chemistry is influenced by these surface geological features, leading to a moderately hard water profile.
Homeowners in Travilah may notice scale buildup on appliances like dishwashers, washing machines, and water heaters, which can reduce their efficiency and lifespan. You might also find that soap doesn't lather as effectively, requiring more detergent. Spotting on glassware and fixtures is another common sign. To manage this, regularly descaling with vinegar, using drain screens, and flushing water heaters can help. WSSC Water has a long history of meeting EPA standards, with a pH typically between 7.2 and 8.0. While the water is considered safe to drink, some Potomac-sourced water has shown levels of haloacetic acids (HAA5) that exceed health guidelines, though they remain below legal limits.
Geology & Source: Potomac River metamorphic/igneous rocks (Precambrian/Paleozoic) and Patuxent River Cretaceous sedimentary formations; upstream Appalachian Highlands carbonate bedrock contributes to moderate hardness
Other Maryland Water Reports
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Frequently Asked Questions
Is Travilah's water safe to drink?
Do I need a water softener in Travilah?
How does Travilah compare to the USA average?
Data Sources & Methodology
Water quality data for Travilah is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.