New Cassel Water Hardness & Quality Report (2026)
Water Hardness
9.1 grains per gallon
Source
reservoir
pH Level
8.1
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
379.8 mg/L
Est. Daily Cost
$0.41
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 New Cassel, your appliances are currently losing 21% efficiency due to mineral buildup.
| Appliance | In New Cassel | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.5 yrs | 8.5 yrs | -47% |
| Washing Machine | 7.9 yrs | 12 yrs | -34% |
| Water Heater | 9.4 yrs | 15 yrs | -37% |
Regional Water Comparison
How New Cassel compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ New Cassel, New York | 155 mg/L | 7.4 ppt | 🟠 Hard | reservoir |
| Westbury, New York | 158.5 mg/L | 7.6 ppt | 🟠 Hard | reservoir |
| Jericho, New York | 124.5 mg/L | 6 ppt | 🟠 Hard | reservoir |
| Hicksville, New York | 151.5 mg/L | 7.3 ppt | 🟠 Hard | reservoir |
| East Meadow, New York | 172.5 mg/L | 8.2 ppt | 🟠 Hard | reservoir |
National Benchmark
How New Cassel compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ New Cassel | 155 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes New Cassel's Water Unique?
Local geology and source profile
New Cassel, New York, in Nassau County — a Nassau County community adjacent to Westbury and East Garden City in central Long Island — receives its water from the Nassau County Water Authority (NCWA), drawing from the Long Island aquifer system (Nassau County) through the Long Island distribution.
The moderately hard 155 mg/L hardness and TDS of 379.8 mg/L reflect the Long Island Nassau County aquifer's moderate calcareous character — consistent with other Nassau County communities (Westbury: ~153 mg/L; East Garden City: ~155 mg/L). The Nassau County Long Island aquifer — Pleistocene Ronkonkoma Moraine glaciofluvial outwash (slightly calcareous — primary hardness contributor from glacial carbonate till), Cretaceous Magothy Formation (slightly calcareous — primary intermediate-depth supply), and Cretaceous Lloyd Sand (slightly calcareous — deep aquifer supply).
At 155 mg/L, New Cassel's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 7.4 ppt warrants a certified drinking water filter — Mitchel Field (Nassau County — former Air Force base, AFFF) and the Long Island Nassau County industrial corridor contribute to New Cassel's elevated readings.
Geology & Source: New Cassel in Nassau County draws from the Nassau County Water Authority on Long Island groundwater (Nassau County, Long Island, New York) — the Long Island aquifer is developed in Pleistocene glaciofluvial outwash sand (slightly calcareous) and Cretaceous Lloyd-Raritan aquifer — New York Nassau County Long Island Pleistocene glaciofluvial Cretaceous aquifer produces moderately hard water at 155 mg/L with TDS 379.8 mg/L.