East Providence Water Hardness & Quality Report (2026)
Water Hardness
0.9 grains per gallon
Source
reservoir
pH Level
7.1
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
23.4 mg/L
Est. Daily Cost
$0.04
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 East Providence, your appliances are currently losing 2% efficiency due to mineral buildup.
| Appliance | In East Providence | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 9.1 yrs | 8.5 yrs | — |
| Washing Machine | 13 yrs | 12 yrs | — |
| Water Heater | 15 yrs | 15 yrs | — |
Regional Water Comparison
How East Providence compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ East Providence, Rhode Island | 15.5 mg/L | 3.9 ppt | 🟢 Soft | reservoir |
| Seekonk, Massachusetts | 107 mg/L | 10.5 ppt | 🟡 Moderately Hard | 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 |
| Cranston, Rhode Island | 73.5 mg/L | 9.8 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How East Providence compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ East Providence | 15.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes East Providence's Water Unique?
Local geology and source profile
East Providence, Rhode Island, in Providence County on the Seekonk River across from Providence — a major Providence metro east suburban community, home of the East Providence refinery corridor (historically important for Gulf Oil and Texaco petroleum storage), Phillipsdale Landing, a large Azorean-American and Cape Verdean community, and one of Rhode Island's largest cities — draws its municipal water supply from the Scituate Reservoir via the Providence Water Supply Board, distributed to East Providence. Water hardness in East Providence measures 15.5 mg/L — classified as extremely soft.
East Providence's extremely soft supply reflects the Scituate Reservoir's highly calcareous-poor Rhode Island Avalonian Terrain watershed. The Scituate Reservoir drains approximately 93 square miles of the Rhode Island Uplands — predominantly Proterozoic Avalonian Terrain (Scituate Granite Gneiss and Burrillville Granite — calcium-poor Precambrian granitic terrain). The catchment's crystalline granite geology yields almost no dissolved calcium, and Rhode Island's highly acidic and calcium-poor Avalonian watershed produces extraordinarily soft water. East Providence receives this same extremely soft Providence Water supply, resulting in the very soft 15.5 mg/L — among the softest municipal supplies in the eastern United States.
With hardness at 15.5 mg/L, East Providence residents enjoy extremely soft water. Providence Water Supply Board consistently delivers water meeting all Rhode Island DEM and EPA Safe Drinking Water Act requirements.
Geology & Source: Reservoir supply from the Scituate Reservoir (Providence Water Supply Board) via the Providence Water Supply Board and the City of East Providence Water Division — the Providence County Rhode Island Narragansett Bay watershed (Proterozoic Avalonian Terrain granodiorite and slate — calcareous-poor crystalline geology); extremely soft supply at 15.5 mg/L in Providence County.