How does Rossville's water compare to the national average?

The USA national average is 151 mg/L. Rossville (≈ 0–59 mg/L) is 121 mg/L softer than average.

Rossville Water Hardness & Quality Report (2026)

Water Hardness

soft

~0–59 mg/L

Soft

estimated · not lab-verified

Source

reservoir

pH Level

7.4

neutral = 7.0

Lead

0.002 mg/L

✓ Below action level

TDS

122.8 mg/L

Est. Daily Cost

$0.08

energy & soap waste

Source: See methodology section below · Updated 2026

soft~0–59 mg/LSoft · est.

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 Rossville, your appliances are currently losing 4% efficiency due to mineral buildup.

Appliance	In Rossville	Soft Water City	Efficiency Loss
Kettle	8.2 yrs	8.5 yrs	-4%
Washing Machine	11.5 yrs	12 yrs	-4%
Water Heater	14.4 yrs	15 yrs	-4%

Regional Water Comparison

How Rossville compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Rossville, New York	≈ 0–59 mg/L	3.7 ppt	🟢 Soft	reservoir
Woodrow, New York	≈ 120–179 mg/L	4.3 ppt	🟠 Hard	reservoir
Carteret, New Jersey	≈ 120–179 mg/L	7.7 ppt	🟠 Hard	reservoir
Eltingville, New York	≈ 120–179 mg/L	4.1 ppt	🟠 Hard	reservoir
Great Kills, New York	≈ 0–60 mg/L	4.2 ppt	🟢 Soft	reservoir

National Benchmark

How Rossville compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Rossville	≈ 0–59 mg/L	🟢 None
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Rossville's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 122.8 mg/LpH: 7.4

Rossville is a community in Richmond County (Staten Island), New York, where water supply is provided by NYC DEP (New York City Department of Environmental Protection) through the Catskill-Delaware Aqueduct system, which forms New York City's municipal supply network for Staten Island distribution. No specific treatment plant or utility documentation was found in available sources for Rossville; for accurate service details and current water quality reports, contacting NYC DEP directly or the New York State Department of Environmental Conservation (DEC) is recommended.

The Catskill-Delaware system draws from reservoirs in the Devonian Catskill Formation sandstone and Devonian Helderberg Limestone watershed of the Catskill and Delaware regions. This geology — dominated by sandstone and limestone — channels soft precipitation through relatively impermeable formations, producing soft water with low total dissolved solids. Richmond County distribution receives this supply via the NYC aqueduct network, which is noted for its soft character compared to harder water sources elsewhere in New York.

Soft water from the Catskill-Delaware system is gentle on appliances, causing minimal scale buildup in pipes, water heaters, dishwashers, and fixtures. Soap lathers readily and glassware stays spot-free, with no descaling or water softener required. However, soft water may be slightly more corrosive to plumbing; NYC DEP applies corrosion control treatment to mitigate this. For the most current water quality data specific to Rossville, consult the NYC DEP annual Consumer Confidence Report or contact the New York State DEC.

Geology & Source: NYC DEP Catskill-Delaware Aqueduct system; Devonian Catskill Formation sandstone and Helderberg Limestone reservoirs — soft watershed drainage with low mineral dissolution produces soft water

Other New York Water Reports

Woodrow

≈ 120–179 mg/L

🟠 Hard

Carteret

≈ 120–179 mg/L

🟠 Hard

Eltingville

≈ 120–179 mg/L

🟠 Hard

Great Kills

≈ 0–60 mg/L

🟢 Soft

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Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Rossville's water safe to drink?

Yes. Rossville's water meets all federal safety standards. The hardness is ≈ 0–59 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 Rossville?

Rossville's water is soft at ≈ 0–59 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.

How does Rossville compare to the USA average?

The USA national average is 151 mg/L. Rossville (≈ 0–59 mg/L) is 121 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 Rossville 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 — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

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.

Measured

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.

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 — 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.