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Travilah Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · 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

hard~120–179 mg/LHard · est.

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.

ApplianceIn TravilahSoft Water CityEfficiency 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

CityHardnessPFAS (ppt)RiskSource
Travilah, Maryland≈ 120–179 mg/L7.4 ppt🟠 Hardreservoir
North Potomac, Maryland≈ 180+ mg/L7.6 ppt🔴 Very Hardreservoir
Potomac, Maryland≈ 120–179 mg/L6.1 ppt🟠 Hardgroundwater
Great Falls, Virginia≈ 120–179 mg/L8.8 ppt🟠 Hardreservoir
Lowes Island, Virginia≈ 120–179 mg/L5.3 ppt🟠 Hardreservoir

National Benchmark

How Travilah compares to the USA average

BenchmarkHardnessAppliance Risk
Travilah≈ 120–179 mg/L🟠 Moderate
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟢 None

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What Makes Travilah's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 281.6 mg/LpH: 7.9

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

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Frequently Asked Questions

Is Travilah's water safe to drink?
Yes. Travilah's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Travilah?
At ≈ 120–179 mg/L (Hard), Travilah's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 20%.
How does Travilah compare to the USA average?
The USA national average is 151 mg/L. Travilah (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

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.

Estimated

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.

Estimated

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.

Estimated

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.

Measured

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.

Modelled

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.

Calculated

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.