Seekonk Water Hardness & Quality Report (2026)
Water Hardness
6.3 grains per gallon
Source
reservoir
pH Level
7.8
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
267.3 mg/L
Est. Daily Cost
$0.29
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 Seekonk, your appliances are currently losing 14% efficiency due to mineral buildup.
| Appliance | In Seekonk | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.1 yrs | 8.5 yrs | -28% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 11.3 yrs | 15 yrs | -25% |
Regional Water Comparison
How Seekonk compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Seekonk, Massachusetts | 107 mg/L | 10.5 ppt | 🟡 Moderately Hard | reservoir |
| East Providence, Rhode Island | 15.5 mg/L | 3.9 ppt | 🟢 Soft | reservoir |
| Barrington, Rhode Island | 52 mg/L | 7.6 ppt | 🟢 Soft | reservoir |
| Providence, Rhode Island | 71.5 mg/L | 9.6 ppt | 🟡 Moderately Hard | reservoir |
| Pawtucket, Rhode Island | 64.5 mg/L | 8.9 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Seekonk compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Seekonk | 107 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Seekonk's Water Unique?
Local geology and source profile
Seekonk, Massachusetts, in Bristol County — a Bristol County town adjacent to Attleboro and Pawtucket RI on the Rhode Island border in southeast Massachusetts — receives its water from the Seekonk Water District or Providence Water supply, drawing from the Ten Mile River watershed (Bristol County) through the southeast Massachusetts distribution.
The moderately hard 107 mg/L hardness and TDS of 267.3 mg/L are slightly harder than the typical southeast Massachusetts granite watershed supplies — reflecting the Seekonk watershed's mixed Precambrian granitic and glacial till drainage with more calcareous till contribution from the Narragansett Basin boundary zone. The Seekonk watershed at Bristol County — Precambrian Dedham Granite (insoluble — dilutant), Pennsylvanian Narragansett Basin sedimentary (slightly calcareous — secondary contributor), and Pleistocene calcareous glacial till (calcareous — primary hardness contributor).
At 107 mg/L, Seekonk'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 10.5 ppt warrants a certified reverse osmosis drinking water filter — South Weymouth Naval Air Station (Norfolk County — AFFF) and the southeast Massachusetts Bristol County industrial corridor contribute significantly to Seekonk's elevated readings.
Geology & Source: Seekonk in Bristol County draws from the Seekonk Water District on the Ten Mile River watershed or Providence Water (Bristol County, southeast Massachusetts) — the watershed drains the Eastern New England Upland (Precambrian Dedham Granite — insoluble) and glacial till — Massachusetts Bristol County Eastern New England Upland Precambrian granite reservoir produces moderately hard water at 107 mg/L with TDS 267.3 mg/L.