How does Central Falls's water compare to the national average?

The USA national average is 151 mg/L. Central Falls (≈ 0–59 mg/L) is 121 mg/L softer than average.

Central Falls Water Hardness & Quality Report (2026)

Water Hardness

soft

~0–59 mg/L

Soft

estimated · not lab-verified

Source

reservoir

pH Level

7.2

neutral = 7.0

Lead

0.007 mg/L

✓ Below action level

TDS

159.6 mg/L

Est. Daily Cost

$0.08

energy & soap waste

Source: See methodology section below · Updated 2026

soft~0–59 mg/LSoft · est.

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 4% efficiency due to mineral buildup.

Appliance	In Central Falls	Soft Water City	Efficiency Loss
Kettle	8.2 yrs	8.5 yrs	-4%
Washing Machine	11.5 yrs	12 yrs	-4%
Water Heater	14.4 yrs	15 yrs	-4%

Regional Water Comparison

How Central Falls compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Central Falls, Rhode Island	≈ 0–59 mg/L	9 ppt	🟢 Soft	reservoir
Pawtucket, Rhode Island	64.5 mg/L	0 ppt	🟡 Moderately Hard	reservoir
Valley Falls, Rhode Island	≈ 0–60 mg/L	6.2 ppt	🟢 Soft	reservoir
Lincoln, Rhode Island	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Providence, Rhode Island	≈ 0–60 mg/L	0 ppt	🟢 Soft	reservoir

National Benchmark

How Central Falls compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Central Falls	≈ 0–59 mg/L	🟢 None
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Central Falls's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 159.6 mg/LpH: 7.2

Central Falls, Rhode Island, is served by the Pawtucket Water Supply Board, which owns and operates the city's water system in Providence County, providing water to approximately 22,583 residents. The Scituate Reservoir on the North Branch Pawtuxet River in Kent County, managed by the Providence Water Supply Board, is the watershed source for the region. Specific treatment plant names and detailed service area documentation are not available in public sources; all community water suppliers in Rhode Island are required by the Rhode Island Department of Health to provide annual Consumer Confidence Reports.

The Scituate watershed drains the Rhode Island Upland, underlain by Precambrian Wading River Granite and Pennsylvanian Narragansett Basin metasediments. These crystalline and metamorphic rocks are characteristic of New England's ancient geological framework and contribute minimal calcium and magnesium to water percolating through them. The low mineral dissolution from this crystalline upland terrain results in a soft water supply with low TDS, typical of Rhode Island's glacially sculpted bedrock landscape.

With soft water, scaling on fixtures and appliances is minimal, and water heaters and plumbing experience negligible mineral buildup. No water softener is necessary for most households. Central Falls tap water has been identified as containing 2 contaminants above EPA health-based guidelines (MCLGs), though the supply meets federal legal limits. Vulnerable populations — including children, pregnant women, and those with compromised immune systems — may benefit from certified water filters. Annual Consumer Confidence Reports can be requested from the Pawtucket Water Supply Board or via the Rhode Island Department of Health.

Geology & Source: Scituate Reservoir watershed — Precambrian Wading River Granite and Pennsylvanian Narragansett Basin metasediment in Rhode Island Upland; crystalline bedrock limits mineral dissolution — soft supply

Other Rhode Island Water Reports

Pawtucket

64.5 mg/L

🟡 Moderately Hard

Valley Falls

≈ 0–60 mg/L

🟢 Soft

Lincoln

≈ 120–179 mg/L

🟠 Hard

Providence

≈ 0–60 mg/L

🟢 Soft

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Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Central Falls's water safe to drink?

Yes. Central Falls's water meets all federal safety standards. The hardness is ≈ 0–59 mg/L (Soft), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Central Falls?

Central Falls's water is soft at ≈ 0–59 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.

How does Central Falls compare to the USA average?

The USA national average is 151 mg/L. Central Falls (≈ 0–59 mg/L) is 121 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Central Falls is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

Water Hardness

Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

TDS — Total Dissolved Solids

Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.

Measured

PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances

EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.

Modelled

Lead

Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.

Calculated

Appliance Lifespan

Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.