West Warwick Water Hardness & Quality Report (2026)
Water Hardness
2.5 grains per gallon
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
88.3 mg/L
Est. Daily Cost
$0.12
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 West Warwick, your appliances are currently losing 6% efficiency due to mineral buildup.
| Appliance | In West Warwick | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.2 yrs | 8.5 yrs | -4% |
| Washing Machine | 12 yrs | 12 yrs | — |
| Water Heater | 13.9 yrs | 15 yrs | -7% |
Regional Water Comparison
How West Warwick compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ West Warwick, Rhode Island | 43.5 mg/L | 6.8 ppt | 🟢 Soft | reservoir |
| East Greenwich, Rhode Island | 79 mg/L | 10.4 ppt | 🟡 Moderately Hard | reservoir |
| Warwick, Rhode Island | 40.5 mg/L | 6.5 ppt | 🟢 Soft | reservoir |
| Cranston, Rhode Island | 73.5 mg/L | 9.8 ppt | 🟡 Moderately Hard | reservoir |
| Johnston, Rhode Island | 15 mg/L | 3.9 ppt | 🟢 Soft | reservoir |
National Benchmark
How West Warwick compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ West Warwick | 43.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes West Warwick's Water Unique?
Local geology and source profile
West Warwick, Rhode Island, in Kent County — a major central Rhode Island Pawtuxet Valley industrial community (West Warwick is a significant Kent County town in the Pawtuxet River Valley — one of the most historically important textile mill towns in New England; West Warwick was the center of the Crompton and Natick textile mill operations — a major 19th and early 20th century textile manufacturing community along the Pawtuxet River; West Warwick was tragically the site of the Station nightclub fire (February 20, 2003 — the Station nightclub fire killed 100 people and is one of the deadliest nightclub fires in US history; the disaster led to significant improvements in nightclub fire safety codes nationally)), a diverse Kent County community with a significant French-Canadian, Irish-American, and working-class mill heritage population, adjacent to Warwick and Coventry in the west Rhode Island corridor, and a community actively rebuilding its identity — draws its municipal water supply via the Providence Water Supply Board. Water hardness in West Warwick measures 43.5 mg/L — classified as very soft.
West Warwick's very soft supply reflects the central Rhode Island Providence Water system's calcareous-poor crystalline geology. The Scituate Reservoir system drains the Precambrian Rhode Island gneiss (calcareous-poor) and Pennsylvanian Narragansett Basin (calcareous-poor). Providence Water produces the very soft 43.5 mg/L.
With hardness at 43.5 mg/L, West Warwick residents enjoy very 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 Flat River Reservoir (Scituate system) via the Providence Water Supply Board — the Kent County central Rhode Island West Warwick corridor (Precambrian calcareous-poor Rhode Island gneiss and Pennsylvanian calcareous-poor Narragansett Basin coal measures — the extremely calcareous-poor central Rhode Island crystalline–coal basin watershed; Providence Water excellent treatment); very soft supply at 43.5 mg/L in Kent County.