Eltingville Water Hardness & Quality Report (2026)
Water Hardness
4.8 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
140.3 mg/L
Est. Daily Cost
$0.22
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 Eltingville, your appliances are currently losing 11% efficiency due to mineral buildup.
| Appliance | In Eltingville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.9 yrs | 8.5 yrs | -19% |
| Washing Machine | 10.5 yrs | 12 yrs | -13% |
| Water Heater | 12.3 yrs | 15 yrs | -18% |
Regional Water Comparison
How Eltingville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Eltingville, New York | 82.5 mg/L | 4.1 ppt | 🟡 Moderately Hard | reservoir |
| Great Kills, New York | 86.5 mg/L | 4.2 ppt | 🟡 Moderately Hard | reservoir |
| Woodrow, New York | 87 mg/L | 4.3 ppt | 🟡 Moderately Hard | reservoir |
| Staten Island, New York | 36 mg/L | 3.6 ppt | 🟢 Soft | reservoir |
| Rossville, New York | 75.5 mg/L | 3.7 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Eltingville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Eltingville | 82.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Eltingville's Water Unique?
Local geology and source profile
Eltingville, New York, in Richmond County — a Richmond County Staten Island neighborhood adjacent to Great Kills and Huguenot in south Staten Island — receives its water from the New York City Department of Environmental Protection (DEP), drawing from the Catskill/Delaware watershed through the New York City distribution.
The moderately hard 82.5 mg/L hardness and TDS of 140.3 mg/L reflect the NYC DEP supply's moderate Catskill character — the Devonian Catskill Formation and Precambrian Berkshire Schist are largely insoluble sandstone and metamorphic formations; NYC's blended watershed supply produces consistent moderately hard water throughout the five boroughs (compare Great Kills NY: 80/136 in Richmond County comparable; Huguenot NY: 84/144 in Richmond County comparable; Eltingville consistent moderate from the same Richmond County Catskill/Delaware watershed Devonian insoluble supply). The Catskill/Delaware watershed — Devonian Catskill Formation (insoluble — primary dilutant), Precambrian Berkshire Schist (insoluble — secondary dilutant), and Quaternary Hudson Valley glacial till (slightly calcareous — TDS contributor).
At 82.5 mg/L with TDS 140, Eltingville's water is moderately hard — mild scale buildup. Semi-annual descaling is appropriate. The PFAS level of 4.1 ppt is moderate — a certified drinking water filter provides added protection. Review NYC DEP's annual water quality report.
Geology & Source: Eltingville in Richmond County draws from the New York City DEP on the Catskill/Delaware watershed (Richmond County, Staten Island New York) — the NYC Catskill watershed draws from Devonian Catskill Formation (insoluble) and Precambrian Berkshire Schist (insoluble) — New York Richmond County Catskill/Delaware watershed Devonian insoluble supply produces moderately hard water at 82.5 mg/L with TDS 140.3 mg/L.