Millbury Water Hardness & Quality Report (2026)
Water Hardness
3.2 grains per gallon
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
104.3 mg/L
Est. Daily Cost
$0.15
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 Millbury, your appliances are currently losing 7% efficiency due to mineral buildup.
| Appliance | In Millbury | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.8 yrs | 8.5 yrs | -8% |
| Washing Machine | 11.6 yrs | 12 yrs | -3% |
| Water Heater | 13.4 yrs | 15 yrs | -11% |
Regional Water Comparison
How Millbury compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Millbury, Massachusetts | 54.5 mg/L | 6.9 ppt | 🟢 Soft | reservoir |
| Auburn, Massachusetts | 87 mg/L | 9.1 ppt | 🟡 Moderately Hard | reservoir |
| Grafton, Massachusetts | 124 mg/L | 11.7 ppt | 🟠 Hard | reservoir |
| Worcester, Massachusetts | 20 mg/L | 4.5 ppt | 🟢 Soft | reservoir |
| Shrewsbury, Massachusetts | 121.5 mg/L | 11.6 ppt | 🟠 Hard | reservoir |
National Benchmark
How Millbury compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Millbury | 54.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Millbury's Water Unique?
Local geology and source profile
Millbury, Massachusetts, in Worcester County — a Worcester County town adjacent to Worcester and Sutton on the Blackstone River in central Massachusetts — receives its water from the Millbury Water Division, drawing from Singletary Lake or the Blackstone River (Worcester County) through the central Massachusetts distribution.
The soft 54.5 mg/L hardness and TDS of 104.3 mg/L reflect the central Massachusetts Worcester County supply's soft character — driven by the Worcester Upland's Precambrian Grafton Gneiss watershed with very limited calcareous dissolution, typical of the central Massachusetts Precambrian bedrock communities. The Blackstone-Singletary watershed at Worcester County — Precambrian Grafton Gneiss (insoluble — primary dilutant), Precambrian Worcester Phyllite (insoluble — dilutant), and Silurian calcareous formations (slightly calcareous — trace hardness contributor).
At 54.5 mg/L, Millbury's water is soft — minimal scale buildup, appliances last well, and no softening is needed. Water is safe for all uses. The PFAS level of 6.9 ppt warrants a certified drinking water filter — the Worcester County central Massachusetts industrial corridor and Devens (former Fort Devens — AFFF, regional) contribute to Millbury's elevated readings.
Geology & Source: Millbury in Worcester County draws from the Millbury Water Division on Singletary Lake or the Blackstone River (Worcester County, central Massachusetts) — the Blackstone-Singletary watershed drains the Worcester Upland (Precambrian Grafton Gneiss — insoluble) with minor Silurian calcareous formations — Massachusetts Worcester County Worcester Upland Precambrian crystalline supply produces soft water at 54.5 mg/L with TDS 104.3 mg/L.