East New York Water Hardness & Quality Report (2026)
Water Hardness
10.1 grains per gallon
Source
reservoir
pH Level
8.2
neutral = 7.0
Lead
0.01 mg/L
✓ Below action level
TDS
456.7 mg/L
Est. Daily Cost
$0.46
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 East New York, your appliances are currently losing 23% efficiency due to mineral buildup.
| Appliance | In East New York | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.9 yrs | 8.5 yrs | -54% |
| Washing Machine | 7.2 yrs | 12 yrs | -40% |
| Water Heater | 8.7 yrs | 15 yrs | -42% |
Regional Water Comparison
How East New York compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ East New York, New York | 173 mg/L | 8.3 ppt | 🟠 Hard | reservoir |
| Cypress Hills, New York | 103 mg/L | 5 ppt | 🟡 Moderately Hard | reservoir |
| Canarsie, New York | 84 mg/L | 4.1 ppt | 🟡 Moderately Hard | reservoir |
| Woodhaven, New York | 85 mg/L | 4.2 ppt | 🟡 Moderately Hard | reservoir |
| Glendale, New York | 178 mg/L | 8.5 ppt | 🟠 Hard | reservoir |
National Benchmark
How East New York compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ East New York | 173 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes East New York's Water Unique?
Local geology and source profile
East New York, a neighbourhood in eastern Brooklyn, receives its drinking water from the New York City Department of Environmental Protection (NYC DEP), supplied by the same Catskill–Delaware watershed system that serves all five New York City boroughs. Source water originates from a network of 19 reservoirs in the Catskill Mountains and Hudson Valley, delivered through the Delaware Aqueduct (the world's longest continuous tunnel) and the Catskill Aqueduct to distribution infrastructure serving Kings County. Water is UV-disinfected at the Catskill–Delaware UV Facility and treated at the Hillview Reservoir before entering Brooklyn's distribution network. Hardness in East New York measures 173 mg/L — classified as hard, notably elevated compared with source hardness readings from the Catskill system.
The elevated hardness in East New York compared with the measured Catskill source water reflects the mineralisation effects of New York City's extensive and aging water distribution network. While the Catskill watershed drains Devonian shale and sandstone with modest carbonate contributions, Brooklyn's distribution mains — some sections of which date to the late nineteenth century — include substantial lengths of cast-iron and cement-lined pipe that contribute dissolved calcium and carbonate to water during transit. East New York sits in the eastern reaches of the Brooklyn distribution zone, at greater pipe-travel distance from the major distribution reservoirs, contributing to readings consistently firmer than Manhattan or the boroughs closer to primary storage.
At 173 mg/L, East New York residents encounter regular scale formation on faucet aerators, showerheads, and in kettles — monthly descaling keeps fixtures in good working order. Dishwashers benefit from rinse-aid for clean glassware, and hot water appliances accumulate moderate scale over time. NYC DEP consistently delivers water meeting all EPA Safe Drinking Water Act standards throughout the Brooklyn distribution network.
Geology & Source: Reservoir supply from the Catskill and Delaware Watershed systems (Devonian and Cambrian–Ordovician metamorphic terrain) delivered via NYC DEP tunnel infrastructure — distribution through Brooklyn's aging cast-iron mains contributes additional mineral pickup, elevating hardness to 173 mg/L at consumer taps in East New York.