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Brooklyn Park Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

8.3

neutral = 7.0

Lead

0.008 mg/L

✓ Below action level

TDS

506.1 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 Brooklyn Park, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn Brooklyn ParkSoft 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 Brooklyn Park compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Brooklyn Park, Maryland≈ 120–179 mg/L10.6 ppt🟠 Hardreservoir
Linthicum, Maryland≈ 120–179 mg/L5.8 ppt🟠 Hardgroundwater
Ferndale, Maryland≈ 120–179 mg/L10.7 ppt🟠 Hardreservoir
Baltimore, Maryland≈ 120–179 mg/L19 ppt🟠 Hardreservoir
Glen Burnie, Maryland≈ 120–179 mg/L7.5 ppt🟠 Hardreservoir

National Benchmark

How Brooklyn Park compares to the USA average

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

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What Makes Brooklyn Park's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 506.1 mg/LpH: 8.3

Brooklyn Park, Maryland, receives its water from Washington Suburban Sanitary Commission (WSSC Water), which serves Anne Arundel County and surrounding areas in the greater Washington, D.C. metropolitan region. The supply is sourced from groundwater aquifers in the Coastal Plain province. WSSC operates multiple groundwater treatment plants, including the Patuxent and Brighton plants, which process raw water through aeration, filtration, disinfection, and corrosion control. The service area covers over 1.1 million people across Montgomery and Prince George's Counties, with distribution to communities like Brooklyn Park.

The Coastal Plain aquifers are of marine origin, primarily the Patuxent Formation and Patapsco Formation, both of Early Cretaceous age. These formations consist of unconsolidated to semi-consolidated sands, gravels, silts, and clays interbedded with shell layers. The key hardness-causing minerals are weathered shell materials rich in calcium carbonate, as well as secondary precipitated calcite. Dolomite and other magnesium-bearing carbonates contribute as well. This sedimentary geology readily dissolves, imparting high concentrations of calcium and magnesium ions, resulting in a characteristically hard supply.

This hard water promotes white scale buildup in pipes, heaters, dishwashers, and washing machines, reducing efficiency and lifespan. Faucets, showerheads, and kettles show visible deposits, while soap lathering is poor, increasing detergent use. Boilers and appliances suffer reduced heat transfer, hiking energy costs. Maintenance includes regular vinegar descaling, installing scale filters, or using polyphosphates. A water softener is strongly recommended via ion-exchange to swap calcium/magnesium for sodium, preventing issues without health risks from hard water itself.

Geology & Source: Coastal Plain aquifers; Patuxent and Patapsco Formations; shell materials and dolomite yield high hardness

Other Maryland Water Reports

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Frequently Asked Questions

Is Brooklyn Park's water safe to drink?
Yes. Brooklyn Park'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 Brooklyn Park?
At ≈ 120–179 mg/L (Hard), Brooklyn Park'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 Brooklyn Park compare to the USA average?
The USA national average is 151 mg/L. Brooklyn Park (≈ 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 Brooklyn Park 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.