Stoughton Water Hardness & Quality Report (2026)
Water Hardness
4 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
143 mg/L
Est. Daily Cost
$0.18
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 Stoughton, your appliances are currently losing 9% efficiency due to mineral buildup.
| Appliance | In Stoughton | 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 Stoughton compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Stoughton, Massachusetts | 69 mg/L | 7.9 ppt | 🟡 Moderately Hard | reservoir |
| Canton, Massachusetts | 96 mg/L | 9.8 ppt | 🟡 Moderately Hard | reservoir |
| Randolph, Massachusetts | 18 mg/L | 4.4 ppt | 🟢 Soft | reservoir |
| Brockton, Massachusetts | 63.5 mg/L | 7.5 ppt | 🟡 Moderately Hard | reservoir |
| Easton, Massachusetts | 23.5 mg/L | 4.7 ppt | 🟢 Soft | reservoir |
National Benchmark
How Stoughton compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Stoughton | 69 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Stoughton's Water Unique?
Local geology and source profile
Stoughton, Massachusetts, in Norfolk County — a major south Boston suburban community (Stoughton is a significant Norfolk County town — a south Boston suburb adjacent to Brockton and Canton; Stoughton is one of the most historically significant communities in colonial Massachusetts (Stoughton was part of the original settlement of Dorchester and was the home of William Stoughton (the chief justice of the Salem Witch Trials in 1692 — one of the most notorious figures in the history of American legal proceedings; Stoughton is named for him despite his infamous role in the witch trials)); Stoughton is known as the home of a significant Jewish-American community (one of the largest Jewish communities per capita in Norfolk County) and as the location of major corporate facilities (Stoughton is home of the Randolph–Stoughton industrial corridor with significant logistics and manufacturing employment); Stoughton is the hometown of the late Cokie Roberts (the renowned NPR and ABC News political journalist), a diverse Norfolk County community with a significant Jewish-American, Cape Verdean-American, and diverse suburban family population — draws its municipal water supply via the Massachusetts Water Resources Authority. Water hardness in Stoughton measures 69 mg/L — classified as moderately soft.
Stoughton's moderate softness reflects the south Boston Norfolk County MWRA supply's calcareous-poor character. The Quabbin and Wachusett Reservoirs drain the Precambrian Central Uplands granite (calcareous-poor). MWRA treatment produces the moderately soft 69 mg/L.
With hardness at 69 mg/L, Stoughton residents enjoy moderately soft water. Massachusetts Water Resources Authority consistently delivers water meeting all Massachusetts DEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Reservoir supply from the MWRA (Quabbin and Wachusett) via the Massachusetts Water Resources Authority — the Norfolk County south Boston suburban Stoughton corridor (Precambrian calcareous-poor Central Uplands granite — the calcareous-poor south Boston Norfolk County MWRA supply; effective treatment); moderately soft supply at 69 mg/L in Norfolk County.