Hicksville Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
groundwater
pH Level
8.1
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
365.5 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · 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 Hicksville, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Hicksville | Soft Water City | Efficiency 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 Hicksville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Hicksville, New York | ≈ 120–179 mg/L | 3.3 ppt | 🟠 Hard | groundwater |
| Jericho, New York | ≈ 120–179 mg/L | 6 ppt | 🟠 Hard | reservoir |
| Salisbury, New York | ≈ 120–179 mg/L | 7.2 ppt | 🟠 Hard | reservoir |
| Levittown, New York | ≈ 120–179 mg/L | 4 ppt | 🟠 Hard | reservoir |
| New Cassel, New York | ≈ 120–179 mg/L | 7.4 ppt | 🟠 Hard | reservoir |
National Benchmark
How Hicksville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Hicksville | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Hicksville's Water Unique?
Local geology and source profile
Hicksville Water District (HWD) serves approximately 48,000 residents in Hicksville, Nassau County, New York. The utility sources all its water from groundwater aquifers, primarily the Upper Glacial and Magothy formations, part of Long Island's sole-source aquifer system. Treatment occurs at district facilities using air stripping, disinfection with hypochlorite, filtration, and ionic exchange to ensure water quality and safety. The utility can be contacted at 516-931-0184 or 4 Dean St, Hicksville, NY 11801; annual Consumer Confidence Reports are published at hicksvillewater.org detailing compliance with all state and federal drinking water standards.
The groundwater originates within Long Island's sole-source aquifer system, recharged by precipitation and local runoff in Nassau County's glacial deposits. The aquifer system relies on confined and unconfined layers shaped by Pleistocene glacial outwash sands and Cretaceous Magothy Formation sedimentary sands and clays. This geology imparts a moderately mineralised character through natural dissolution of calcium and magnesium, with prolonged water-rock contact in the coastal plain aquifer yielding a hard supply prone to scale formation.
At this moderately hard level, water causes noticeable scale buildup in pipes, fixtures, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan. Soap lathering is impaired, leading to dry skin and higher detergent use. Regular descaling of faucets and heaters and the use of a water softener are recommended to mitigate effects and protect plumbing. Water quality meets all EPA MCLGs per recent testing with no violations; treatment includes air stripping for volatiles, hypochlorite disinfection, filtration, and ionic exchange. Compliance deferred for PFOA, PFOS, and 1,4-Dioxane; calcium hardness is naturally occurring and not regulated under current MCLs.
Geology & Source: Long Island sole-source aquifer system — Upper Glacial and Magothy Aquifers; Pleistocene glacial till and Cretaceous Magothy Formation sands; prolonged water-rock contact elevates calcium and magnesium, yielding a moderately hard supply
Other New York Water Reports
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Frequently Asked Questions
Is Hicksville's water safe to drink?
Do I need a water softener in Hicksville?
How does Hicksville compare to the USA average?
Data Sources & Methodology
Water quality data for Hicksville is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
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.
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.
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.
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.
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.
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.