South Hadley Water Hardness & Quality Report (2026)
Water Hardness
2.1 grains per gallon
Source
reservoir
pH Level
7.2
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
60.2 mg/L
Est. Daily Cost
$0.09
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 South Hadley, your appliances are currently losing 5% efficiency due to mineral buildup.
| Appliance | In South Hadley | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.4 yrs | 8.5 yrs | -1% |
| Washing Machine | 12.3 yrs | 12 yrs | — |
| Water Heater | 14.2 yrs | 15 yrs | -5% |
Regional Water Comparison
How South Hadley compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ South Hadley, Massachusetts | 35.5 mg/L | 5.6 ppt | 🟢 Soft | reservoir |
| Holyoke, Massachusetts | 89 mg/L | 9.3 ppt | 🟡 Moderately Hard | reservoir |
| North Chicopee, Massachusetts | 115.5 mg/L | 11.1 ppt | 🟡 Moderately Hard | reservoir |
| Northampton, Massachusetts | 18 mg/L | 4.4 ppt | 🟢 Soft | reservoir |
| Easthampton, Massachusetts | 21.5 mg/L | 4.6 ppt | 🟢 Soft | reservoir |
National Benchmark
How South Hadley compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ South Hadley | 35.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes South Hadley's Water Unique?
Local geology and source profile
South Hadley, Massachusetts, in Hampshire County — a Hampshire County town adjacent to Holyoke and Chicopee in the Connecticut River Valley of western Massachusetts, home of Mount Holyoke College — receives its municipal water from South Hadley Water Division, drawing from the Stony Brook watershed reservoirs (Hampshire County) or the Connecticut Valley supply.
The extremely soft 35.5 mg/L hardness and very low TDS of 60.2 mg/L reflect the western Massachusetts upland's insoluble crystalline geology. The South Hadley watershed drains the Holyoke Range — Jurassic Deerfield Basalt and Holyoke Range basalt (dark mafic volcanic — insoluble), Triassic East Berlin Formation (sandstone — relatively insoluble), and the Western Massachusetts Upland (Precambrian gneiss and schist — insoluble crystalline). The insoluble basalt and gneiss produce the near-distilled soft water characteristic of the western Massachusetts Connecticut Valley tributaries.
At 35.5 mg/L, South Hadley's water is extremely soft — no scale ever forms, soap lathers maximally, and appliances achieve maximum lifespan. No descaling is needed. The PFAS level of 5.6 ppt warrants a certified drinking water filter — Westover Air Reserve Base (Hampden County — AFFF in the Connecticut Valley watershed), the Springfield-Chicopee industrial corridor, and the western Massachusetts PFAS background contribute to South Hadley's readings.
Geology & Source: South Hadley in Hampshire County draws from South Hadley Water on Stony Brook reservoir (Connecticut River watershed, Hampshire County) — the watershed drains the Holyoke Range (Jurassic Holyoke Basalt, insoluble) and the Western Massachusetts Upland (Precambrian gneiss) — Massachusetts Hampshire County Jurassic-Precambrian insoluble watershed produces extremely soft water at 35.5 mg/L with very low TDS 60.2 mg/L in this Hampshire County Massachusetts town.