Duxbury Water Hardness & Quality Report (2026)
Water Hardness
6.6 grains per gallon
Source
reservoir
pH Level
7.9
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
290.3 mg/L
Est. Daily Cost
$0.30
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 Duxbury, your appliances are currently losing 15% efficiency due to mineral buildup.
| Appliance | In Duxbury | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.9 yrs | 8.5 yrs | -31% |
| Washing Machine | 9.4 yrs | 12 yrs | -22% |
| Water Heater | 11.1 yrs | 15 yrs | -26% |
Regional Water Comparison
How Duxbury compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Duxbury, Massachusetts | 113 mg/L | 11 ppt | 🟡 Moderately Hard | reservoir |
| Hanover, Massachusetts | 49.5 mg/L | 6.5 ppt | 🟢 Soft | reservoir |
| Rockland, Massachusetts | 40 mg/L | 5.9 ppt | 🟢 Soft | reservoir |
| Whitman, Massachusetts | 100.5 mg/L | 10.1 ppt | 🟡 Moderately Hard | reservoir |
| Abington, Massachusetts | 55.5 mg/L | 7 ppt | 🟢 Soft | reservoir |
National Benchmark
How Duxbury compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Duxbury | 113 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Duxbury home
Shop water softeners on Amazon.com →
What Makes Duxbury's Water Unique?
Local geology and source profile
Duxbury, Massachusetts, in Plymouth County — a Plymouth County town adjacent to Marshfield and Plymouth on the Atlantic coast in southeast Massachusetts — receives its water from the Duxbury Water Division, drawing from local Plymouth County groundwater and reservoirs through the southeast Massachusetts distribution.
The moderately hard 113 mg/L hardness and elevated TDS of 290.3 mg/L are substantially harder than the MWRA Boston metro supply (Roxbury Crossing: 49.5 mg/L) — reflecting the local Plymouth County aquifer's slightly calcareous coastal plain character, distinct from the soft MWRA Quabbin-Wachusett supply. The Plymouth County aquifer at Duxbury is developed in Cretaceous Plymouth Coastal Plain (calcareous sandy aquifer — primary hardness contributor, derived from Cretaceous shell-bearing marine sediments), Pleistocene glacial outwash (slightly calcareous), and Precambrian crystalline bedrock (insoluble). The Cretaceous calcareous coastal plain produces the moderately hard south Massachusetts supply.
At 113 mg/L, Duxbury's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 11.0 ppt is very high — South Weymouth Naval Air Station (Norfolk County — AFFF legacy), Joint Base Cape Cod (Barnstable County — AFFF, the dominant southeast Massachusetts PFAS source), and the Plymouth County coastal military-industrial complex contribute to Duxbury's very elevated readings.
Geology & Source: Duxbury in Plymouth County draws from the Duxbury Water Division on the Duxbury Aquifer and local Plymouth County reservoirs (Plymouth County, southeast Massachusetts) — the Plymouth County watershed drains Cretaceous Plymouth Coastal Plain sand and Precambrian crystalline bedrock (insoluble) — Massachusetts Plymouth County coastal plain sandy aquifer produces moderately hard water at 113 mg/L with TDS 290.3 mg/L.