How does Arbutus's water compare to the national average?

The USA national average is 151 mg/L. Arbutus (≈ 180+ mg/L) is 189 mg/L harder than average.

Arbutus Water Hardness & Quality Report (2026)

Water Hardness

very hard

180+ mg/L

Very Hard

estimated · not lab-verified

Source

reservoir

pH Level

7.5

neutral = 7.0

Lead

0.002 mg/L

✓ Below action level

TDS

138 mg/L

Est. Daily Cost

$0.91

energy & soap waste

Source: See methodology section below · Updated 2026

very hard180+ mg/LVery Hard · 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 Arbutus, your appliances are currently losing 45% efficiency due to mineral buildup.

Appliance	In Arbutus	Soft Water City	Efficiency Loss
Kettle	4.7 yrs	8.5 yrs	-45%
Washing Machine	6.6 yrs	12 yrs	-45%
Water Heater	8.3 yrs	15 yrs	-45%

Regional Water Comparison

How Arbutus compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Arbutus, Maryland	≈ 180+ mg/L	4.6 ppt	🔴 Very Hard	reservoir
Catonsville, Maryland	141 mg/L	6.4 ppt	🟠 Hard	reservoir
Elkridge, Maryland	≈ 120–179 mg/L	9.2 ppt	🟠 Hard	reservoir
West Elkridge, Maryland	≈ 120–179 mg/L	4.4 ppt	🟠 Hard	reservoir
Ilchester, Maryland	141 mg/L	7.7 ppt	🟠 Hard	reservoir

National Benchmark

How Arbutus compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Arbutus	≈ 180+ mg/L	🔴 High
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Arbutus's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 138 mg/LpH: 7.5

Arbutus, Maryland, in Baltimore County, receives its water from the Baltimore City Department of Public Works Bureau of Water and Wastewater. The utility serves over 1.8 million people across Baltimore City and surrounding counties. Primary sources include surface water from Liberty Reservoir on the Patapsco River, Loch Raven Reservoir, and Prettyboy Reservoir in the Gunpowder Falls watershed. Water is treated at the Ashburton Water Filtration Plant and Montebello Filtration Plant in Baltimore City, with distribution through an extensive pipeline network reaching Arbutus near the East Branch Herbert Run tributary.

The supply originates from the Patapsco River watershed and Gunpowder Falls basin, underlain by Coastal Plain sediments including carbonate-rich formations containing calcite and aragonite shells from marine deposits of the Tertiary period. These geological features dissolve into the water as it percolates through limestone and sedimentary rocks, imparting a hard character due to elevated concentrations of dissolved calcium and magnesium. Groundwater influences from these formations further shape a moderately mineralised to hard supply.

Very hard water promotes white scale buildup on fixtures, kettles, and inside pipes, reducing efficiency in water heaters, dishwashers, and washing machines. Faucet aerators and showerheads clog quickly, while laundry may appear dingy and soap lather poorly. Regular descaling of appliances, installing scale filters, and flushing hot water heaters annually help mitigate issues. A water softener is recommended to extend appliance life and improve cleaning effectiveness. Baltimore City's water meets EPA standards, complies with the Lead and Copper Rule through corrosion control, and treatment includes advanced filtration, chloramination, and UV disinfection.

Geology & Source: Baltimore City surface water watershed — Liberty Reservoir and Gunpowder Falls basin; Coastal Plain Tertiary sediments contain calcite, aragonite, and magnesium calcite shells; dissolved calcium and magnesium from carbonate-rich formations produce

Other Maryland Water Reports

Catonsville

141 mg/L

🟠 Hard

Elkridge

≈ 120–179 mg/L

🟠 Hard

West Elkridge

≈ 120–179 mg/L

🟠 Hard

Ilchester

141 mg/L

🟠 Hard

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All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Arbutus's water safe to drink?

Yes. Arbutus's water meets all federal safety standards. The hardness is ≈ 180+ mg/L (Very Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Arbutus?

At ≈ 180+ mg/L (Very Hard), Arbutus'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 45%.

How does Arbutus compare to the USA average?

The USA national average is 151 mg/L. Arbutus (≈ 180+ mg/L) is 189 mg/L above the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Arbutus 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

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.