Roosevelt Water Hardness & Quality Report (2026)
Water Hardness
4.1 grains per gallon
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
109.8 mg/L
Est. Daily Cost
$0.19
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 Roosevelt, your appliances are currently losing 9% efficiency due to mineral buildup.
| Appliance | In Roosevelt | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.3 yrs | 8.5 yrs | -14% |
| Washing Machine | 11 yrs | 12 yrs | -8% |
| Water Heater | 12.8 yrs | 15 yrs | -15% |
Regional Water Comparison
How Roosevelt compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Roosevelt, New York | 70 mg/L | 3.5 ppt | 🟡 Moderately Hard | reservoir |
| Freeport, New York | 146 mg/L | 7 ppt | 🟠 Hard | reservoir |
| Uniondale, New York | 64 mg/L | 3.2 ppt | 🟡 Moderately Hard | reservoir |
| Baldwin, New York | 151.5 mg/L | 7.3 ppt | 🟠 Hard | reservoir |
| Hempstead, New York | 143.5 mg/L | 6.9 ppt | 🟠 Hard | reservoir |
National Benchmark
How Roosevelt compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Roosevelt | 70 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Roosevelt's Water Unique?
Local geology and source profile
Roosevelt, New York, in Nassau County — an unincorporated Nassau County community adjacent to Freeport and Uniondale in central-south Nassau County on Long Island — receives its municipal water from New York City DEP or the Roosevelt Public Water District, drawing from the NYC Catskill-Delaware system delivered to the western Long Island high-service area (Nassau County).
The moderately soft 70 mg/L hardness and low TDS of 109.8 mg/L are consistent with the western Nassau County NYCDEP supply (North Valley Stream: 74 mg/L; Bellmore: 78.5 mg/L), confirming Roosevelt receives NYC water rather than the harder Long Island Aquifer supply. NYC water from the Catskill-Delaware drains the Catskill Mountains — Devonian Catskill Formation red sandstone (insoluble), Devonian Helderberg Group (minor calcareous), and Ordovician Austin Glen Formation (slightly calcareous). The predominantly insoluble Catskill sandstone produces the soft western Nassau County supply.
At 70 mg/L, Roosevelt's water is moderately soft — light scale forms slowly in appliances, dishwashers remain efficient, and bathroom fixtures need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 3.5 ppt is low — the NYCDEP Catskill-Delaware system carries minimal PFAS, and Roosevelt's western Nassau location receives primarily clean filtered NYC water.
Geology & Source: Roosevelt in Nassau County draws from New York City DEP on the Catskill-Delaware and Croton watersheds (Nassau County, south Long Island) — the Catskill-Delaware drains the Catskill Mountains (Devonian Catskill Formation sandstone — insoluble) — New York Nassau County NYCDEP Catskill-Delaware insoluble watershed produces moderately soft water at 70 mg/L with TDS 109.8 mg/L in this Nassau County New York community.