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Bellmore Water Hardness & Quality Report (2026)

Water Hardness

10.9mg/L
Soft

0.6 grains per gallon

Source

groundwater

pH Level

7.5

neutral = 7.0

Lead

0.002 mg/L

βœ“ Below action level

TDS

129.9 mg/L

Est. Daily Cost

$0.03

energy & soap waste

Source: See methodology section below Β· Updated 2026

10.9mg/L as CaCO₃Soft

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 Bellmore, your appliances are currently losing 1% efficiency due to mineral buildup.

ApplianceIn BellmoreSoft Water CityEfficiency Loss
Kettle
9.2 yrs
8.5 yrsβ€”
Washing Machine
13.2 yrs
12 yrsβ€”
Water Heater
15.2 yrs
15 yrsβ€”

Regional Water Comparison

How Bellmore compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
β–Ά Bellmore, New York10.9 mg/L3.9 ppt🟒 Softgroundwater
Wantagh, New York10.9 mg/L5.8 ppt🟒 Softreservoir
North Bellmore, New Yorkβ‰ˆ 0–60 mg/L8.3 ppt🟒 Softreservoir
Merrick, New York10.95 mg/L18.8 ppt🟒 Softgroundwater
North Wantagh, New York10.75 mg/L3.7 ppt🟒 Softreservoir

National Benchmark

How Bellmore compares to the USA average

BenchmarkHardnessAppliance Risk
β–Ά Bellmore10.9 mg/L🟒 None
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟒 None

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What Makes Bellmore's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 129.9 mg/LpH: 7.5

New York American Water draws water for Bellmore, New York, from local groundwater wells. These wells tap into the Upper Glacial and Magothy aquifers, which are part of the Long Island coastal plain system. The water undergoes treatment at district facilities, including filtration, disinfection, and pH adjustment, to ensure a reliable supply for residents and businesses in the Hempstead Town area. This groundwater is naturally recharged by precipitation filtering through the sandy deposits characteristic of the region.

The region's geology is defined by unconsolidated sediments. The Upper Glacial aquifer consists of sands and gravels from the Pleistocene epoch, resting above the Magothy aquifer, a thicker layer of finer sands belonging to the Miocene epoch. Underlying these are Cretaceous clays of the Raritan Formation. This quartz-rich geology, with minimal carbonate rocks, means minerals like calcium and magnesium dissolve poorly, resulting in naturally soft water with low mineral content.

Because the water is soft, you'll find less scale buildup on appliances like water heaters and dishwashers, potentially extending their lifespan. Plumbing fixtures tend to stay cleaner, and you might notice your skin feels less dry after showering. While a water softener isn't typically needed and could even pose a corrosion risk due to the low mineral content, simple maintenance like flushing your water heater annually is a good idea. The water's average pH is 7.06, which is right in the neutral range.

Geology & Source: Northern Atlantic Coastal Plain unconsolidated formations; Pleistocene sands and Miocene Magothy sands yield soft water due to low limestone content and silica-rich sands

Other New York Water Reports

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Frequently Asked Questions

Is Bellmore's water safe to drink?
Yes. Bellmore's water meets all federal safety standards. The hardness is 10.9 mg/L (Soft), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Bellmore?
Bellmore's water is soft at 10.9 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.
How does Bellmore compare to the USA average?
The USA national average is 151 mg/L. Bellmore (10.9 mg/L) is 140 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 Bellmore 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 β€” 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 β€” values may differ from utility-reported figures.

Estimated

TDS β€” 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 β€” Perfluoroalkyl and Polyfluoroalkyl Substances

EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) β€” 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 β€” 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.