Newport Water Hardness & Quality Report (2026)
Water Hardness
3.4 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
131.4 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 Newport, your appliances are currently losing 8% efficiency due to mineral buildup.
| Appliance | In Newport | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.7 yrs | 8.5 yrs | -9% |
| Washing Machine | 11.5 yrs | 12 yrs | -4% |
| Water Heater | 13.3 yrs | 15 yrs | -11% |
Regional Water Comparison
How Newport compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Newport, Rhode Island | 57.5 mg/L | 8.2 ppt | 🟢 Soft | reservoir |
| Middletown, Rhode Island | 51.5 mg/L | 7.6 ppt | 🟢 Soft | reservoir |
| Portsmouth, Rhode Island | 69.5 mg/L | 9.4 ppt | 🟡 Moderately Hard | reservoir |
| Narragansett, Rhode Island | 55 mg/L | 7.9 ppt | 🟢 Soft | reservoir |
| North Kingstown, Rhode Island | 59.5 mg/L | 8.4 ppt | 🟢 Soft | reservoir |
National Benchmark
How Newport compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Newport | 57.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Newport's Water Unique?
Local geology and source profile
Newport, Rhode Island, in Newport County on Aquidneck Island in Narragansett Bay — one of America's most celebrated historic and resort cities, famous for its Gilded Age mansions, America's Cup sailing heritage, and Naval Station Newport — receives its municipal water from the Newport Water Division, drawing from the Lawton Valley Reservoir in Middletown, Rhode Island, with supplementary supply from the Easton's Pond reservoir system. These reservoirs collect precipitation from the forested watershed of northern Aquidneck Island and the adjacent mainland.
The soft 57.5 mg/L hardness and low TDS of 131.4 mg/L reflect the Narragansett Basin's characteristic geology beneath Aquidneck Island and the surrounding Rhode Island terrain. The Lawton Valley watershed drains Precambrian and Paleozoic metamorphic and intrusive igneous rocks — the Narragansett Pier Granite, Esmond Granite, and associated Pennsylvanian Narragansett Basin metasedimentary rocks — crystalline terrains with no soluble carbonate minerals. Precipitation falling on these ancient hard rock surfaces picks up minimal calcium and magnesium, producing characteristically soft New England reservoir water. Newport's island setting means its watershed is small and its reservoir sources are entirely crystalline rock-dominated.
At 57.5 mg/L, Newport's water is soft — comfortable for everyday household use in this celebrated coastal community. Soap lathers readily, appliances scale slowly over many months, and glassware from the dishwasher emerges with minimal spotting. Semi-annual descaling of kettles and coffee machines is adequate for this soft supply. The notable concern for Newport residents is the PFAS level of 8.2 ppt — Naval Station Newport is one of the most significant active naval installations on the East Coast, and historic use of AFFF firefighting foam at military and nearby aviation facilities has contributed to elevated PFAS across Aquidneck Island's groundwater and surface water systems. A certified NSF/ANSI 58 reverse osmosis filter is strongly recommended for all drinking and cooking water.
Geology & Source: Newport in Newport County draws from the Newport Water Division's Lawton Valley Reservoir — the watershed drains Precambrian Narragansett Basin terrain and Paleozoic crystalline metamorphic rocks of eastern Rhode Island, composed of granites, gneisses, and schists with no significant carbonate content — crystalline New England watershed drainage produces soft water at 57.5 mg/L.