Westbury Water Hardness & Quality Report (2026)
Water Hardness
9.3 grains per gallon
Source
reservoir
pH Level
8.1
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
394.2 mg/L
Est. Daily Cost
$0.42
energy & soap waste
Source: USGS Water Quality Portal · 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 Westbury, your appliances are currently losing 21% efficiency due to mineral buildup.
| Appliance | In Westbury | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.4 yrs | 8.5 yrs | -48% |
| Washing Machine | 7.7 yrs | 12 yrs | -36% |
| Water Heater | 9.3 yrs | 15 yrs | -38% |
Regional Water Comparison
How Westbury compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Westbury, New York | 158.5 mg/L | 7.6 ppt | 🟠 Hard | reservoir |
| New Cassel, New York | 155 mg/L | 7.4 ppt | 🟠 Hard | reservoir |
| East Meadow, New York | 172.5 mg/L | 8.2 ppt | 🟠 Hard | reservoir |
| Mineola, New York | 95 mg/L | 4.6 ppt | 🟡 Moderately Hard | reservoir |
| Garden City, New York | 158 mg/L | 7.6 ppt | 🟠 Hard | reservoir |
National Benchmark
How Westbury compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Westbury | 158.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Westbury's Water Unique?
Local geology and source profile
Westbury, New York, in Nassau County — a Nassau County village adjacent to Garden City and Mineola in central Nassau County, Long Island — receives its water from the Nassau County Department of Public Works or local water districts, drawing from the Long Island Aquifer (Magothy Formation, central Nassau County) through the central Long Island distribution.
The hard 158.5 mg/L hardness and TDS of 394.2 mg/L are harder than the central Suffolk SCWA communities (Farmingville: 101 mg/L) but comparable to east-central Suffolk (Mastic: 169.5 mg/L) — reflecting the central Nassau County Magothy's more concentrated calcareous character compared to the Suffolk Magothy zone. The Long Island Aquifer (Magothy) at central Nassau is developed in Cretaceous Magothy Formation (calcareous sand — higher carbonate content at Nassau versus central Suffolk position), Pleistocene Jameco Gravel (calcareous), and Cretaceous Lloyd Sand (slightly calcareous).
At 158.5 mg/L, Westbury's water is hard — scale builds steadily in kettles and appliances, dishwashers benefit from rinse aid, and water heaters should be descaled annually. Monthly descaling is recommended. The PFAS level of 7.6 ppt warrants a certified reverse osmosis drinking water filter — the Nassau County central Long Island Grumman-Bethpage PFAS plume (the largest Long Island PFAS source, directly beneath central Nassau County), and the Long Island industrial PFAS legacy contribute to Westbury's elevated readings.
Geology & Source: Westbury in Nassau County draws from the Nassau County Department of Public Works on the Long Island Aquifer (Nassau County, central Long Island) — the Long Island Aquifer at central Nassau is developed in Cretaceous Magothy Formation (calcareous) and Pleistocene Jameco Gravel — New York Nassau County Long Island Aquifer calcareous system produces hard water at 158.5 mg/L with TDS 394.2 mg/L.