Eastchester Water Hardness & Quality Report (2026)
Water Hardness
3.7 grains per gallon
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
95.4 mg/L
Est. Daily Cost
$0.17
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 Eastchester, your appliances are currently losing 8% efficiency due to mineral buildup.
| Appliance | In Eastchester | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.5 yrs | 8.5 yrs | -12% |
| Washing Machine | 11.3 yrs | 12 yrs | -6% |
| Water Heater | 13.1 yrs | 15 yrs | -13% |
Regional Water Comparison
How Eastchester compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Eastchester, New York | 63.5 mg/L | 3.2 ppt | 🟡 Moderately Hard | reservoir |
| Wykagyl, New York | 92.5 mg/L | 4.5 ppt | 🟡 Moderately Hard | reservoir |
| Scarsdale, New York | 164.5 mg/L | 7.9 ppt | 🟠 Hard | reservoir |
| New Rochelle, New York | 158 mg/L | 7.6 ppt | 🟠 Hard | reservoir |
| Mount Vernon, New York | 126 mg/L | 6.1 ppt | 🟠 Hard | reservoir |
National Benchmark
How Eastchester compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Eastchester | 63.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Eastchester's Water Unique?
Local geology and source profile
Eastchester, New York, in Westchester County — a Westchester County town adjacent to Mount Vernon and Bronxville, one of the southern Westchester communities in the NYC suburban corridor — receives its municipal water from the NYC DEP (through Westchester extension) or Suez (United Water), drawing from the Catskill-Delaware Reservoir system or the Westchester County Water District on the NYC DEP supply infrastructure.
The soft 63.5 mg/L hardness and very low TDS of 95.4 mg/L reflect Eastchester's connection to the NYC DEP Catskill-Delaware supply — among the softest large metropolitan supplies in the United States. The Catskill-Delaware Reservoir system collects drainage from the Catskill Mountains (Devonian Catskill Formation sandstone and shale — soft) and the Delaware headwaters (Devonian-Silurian crystalline terrain — soft). NYC DEP treats with limited corrosion control addition, maintaining the characteristically soft supply throughout the Westchester portion of the NYC water network.
At 63.5 mg/L, Eastchester's water is moderately soft — comfortable for household use. Scale forms slowly, soap lathers well, and appliances operate efficiently. Semi-annual descaling is adequate. The PFAS level of 3.2 ppt is very good for a NYC-area suburban community — reflecting the Catskill-Delaware watershed's protected pristine character, the NYC DEP's strict watershed protection program, and the relatively limited direct military-industrial PFAS in the upper Catskill Delaware watershed.
Geology & Source: Eastchester in Westchester County is served by NYC DEP or Suez (United Water) on the Catskill-Delaware Reservoir system — the Catskill-Delaware watersheds drain Devonian-Silurian shale and sandstone — NYC Catskill-Delaware watershed soft source water with NYC DEP-range corrosion control treatment produces soft water at 63.5 mg/L with very low TDS 95 mg/L in this Westchester County New York town.