Central Falls Water Hardness & Quality Report (2026)
Water Hardness
3.8 grains per gallon
Source
reservoir
pH Level
7.6
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
159.6 mg/L
Est. Daily Cost
$0.17
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 Central Falls, your appliances are currently losing 9% efficiency due to mineral buildup.
| Appliance | In Central Falls | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.4 yrs | 8.5 yrs | -13% |
| Washing Machine | 11.2 yrs | 12 yrs | -7% |
| Water Heater | 13 yrs | 15 yrs | -13% |
Regional Water Comparison
How Central Falls compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Central Falls, Rhode Island | 65.5 mg/L | 9 ppt | 🟡 Moderately Hard | reservoir |
| Pawtucket, Rhode Island | 64.5 mg/L | 8.9 ppt | 🟡 Moderately Hard | reservoir |
| Lincoln, Rhode Island | 68 mg/L | 9.3 ppt | 🟡 Moderately Hard | reservoir |
| Providence, Rhode Island | 71.5 mg/L | 9.6 ppt | 🟡 Moderately Hard | reservoir |
| East Providence, Rhode Island | 15.5 mg/L | 3.9 ppt | 🟢 Soft | reservoir |
National Benchmark
How Central Falls compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Central Falls | 65.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Central Falls's Water Unique?
Local geology and source profile
Central Falls, Rhode Island, in Providence County — a Providence County city adjacent to Pawtucket and Cumberland, the smallest and most densely populated city in New England, a historic industrial mill city on the Blackstone River — receives its municipal water from the Providence Water Supply Board, drawing from the Scituate Reservoir (the main drinking water reservoir for the greater Providence metro, on the North Branch Pawtuxet River in Kent County).
The soft 65.5 mg/L hardness and TDS of 159.6 mg/L reflect the Scituate Reservoir's Rhode Island Upland crystalline watershed character. The Scituate Reservoir watershed drains the Rhode Island Upland — terrain underlain by the Precambrian Wading River Granite, Cambrian crystalline rocks, and the Pennsylvanian Narragansett Basin (metamorphosed coal measures — graphitic schist and quartzite). All are insoluble silicate rocks, producing the consistently soft Providence Water supply throughout the greater Providence distribution system including Central Falls.
At 65.5 mg/L, Central Falls' water is soft — comfortable for household use. Scale forms slowly, soap lathers well, and appliances operate efficiently. Semi-annual descaling is adequate. The PFAS level of 9.0 ppt warrants a certified reverse osmosis drinking water filter — the Quonset Point-Davisville (North Kingstown RI — former US Navy Seabees base and industrial park, documented PFAS source in the Narragansett Bay watershed), the Rhode Island industrial corridor (Providence Blackstone Valley — significant industrial legacy), and the Scituate-Pawtuxet watershed PFAS background contribute to Central Falls' elevated readings.
Geology & Source: Central Falls in Providence County is served by the Providence Water Supply Board on the Scituate Reservoir (North Branch Pawtuxet River, Kent County) — the Scituate watershed drains the Rhode Island Upland (Precambrian Wading River Granite and Pennsylvanian Narragansett Basin metasediment) — Rhode Island crystalline upland watershed produces soft water at 65.5 mg/L with TDS 160 mg/L in this Providence County Rhode Island city.