Grand Island Water Hardness & Quality Report (2026)
Water Hardness
4.3 grains per gallon
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
121.4 mg/L
Est. Daily Cost
$0.20
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 Grand Island, your appliances are currently losing 10% efficiency due to mineral buildup.
| Appliance | In Grand Island | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.2 yrs | 8.5 yrs | -15% |
| Washing Machine | 10.9 yrs | 12 yrs | -9% |
| Water Heater | 12.7 yrs | 15 yrs | -15% |
Regional Water Comparison
How Grand Island compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Grand Island, New York | 73.5 mg/L | 3.8 ppt | 🟡 Moderately Hard | reservoir |
| Tonawanda, New York | 141.5 mg/L | 7 ppt | 🟠 Hard | reservoir |
| North Tonawanda, New York | 69.5 mg/L | 3.6 ppt | 🟡 Moderately Hard | reservoir |
| Niagara Falls, New York | 161.5 mg/L | 7.9 ppt | 🟠 Hard | reservoir |
| Kenmore, New York | 147.5 mg/L | 7.3 ppt | 🟠 Hard | reservoir |
National Benchmark
How Grand Island compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Grand Island | 73.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Grand Island's Water Unique?
Local geology and source profile
Grand Island, New York, in Erie County — a large island town in the Niagara River between Lake Erie and Niagara Falls, a primarily residential Erie County community with extensive parks and riverfront access — receives its municipal water from the Grand Island Water Department, which draws from the Niagara River at the Grand Island reach or from Lake Erie through the Erie County regional water supply system.
The moderately soft 73.5 mg/L hardness and TDS of 121.4 mg/L are surprisingly soft for the Great Lakes region — reflecting the Niagara River's large-volume Lake Superior and Lake Michigan snowmelt contribution. The Niagara River carries the massive outflow of the entire Upper Great Lakes (Superior, Huron, Michigan) over the Silurian Lockport Dolomite and Niagara Escarpment (the geological feature responsible for Niagara Falls). While the Niagara Escarpment's dolomite contributes some carbonate, the enormous volume of diluted soft water from the Lake Superior Canadian Shield watershed (very soft — ~35-50 mg/L hardness) and Lake Michigan (moderately hard) dominates the Niagara River chemistry, producing relatively soft finished water at Grand Island compared to groundwater-dominated western New York sources.
At 73.5 mg/L, Grand Island's water is moderately soft — comfortable for household use. Scale forms slowly over months, soap lathers well, and appliances operate efficiently. Semi-annual descaling is adequate. The PFAS level of 3.8 ppt is moderate for western New York — the Niagara River's legacy as one of the most contaminated rivers in North America (the Love Canal Superfund site at Niagara Falls, the extensive Occidental Chemical and chemical industry legacy), yet the large river volume's dilution capacity maintains a moderate PFAS reading at Grand Island.
Geology & Source: Grand Island in Erie County draws from the Grand Island Water Department on the Niagara River or Lake Erie — the Niagara River at Grand Island carries the outflow of the Upper Great Lakes over the Silurian Lockport Dolomite and Onondaga Limestone Niagara Escarpment — Upper Great Lakes carbonate escarpment drainage produces moderately soft water at 73.5 mg/L with TDS 121 mg/L in this Erie County New York island town.