City water profile

Water hardness in Cranston

Find official utility reports, understand hardness, and check the water system serving your home in Cranston, Rhode Island.

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: 1 PPM below
Evidence comparison rank: #3 of 3
Matched utilities: 2
Active health records: 0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →

Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Providence-City Of

RI1592024 · Surface water · 333,142 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 2.0e-4 mg/L
Action level: 0.015 mg/L

1% of the listed benchmark

Monitoring period: Jan 1, 2026 to Jun 30, 2026

Violation history (3)

Imported violation history for Providence-City Of
Rule	Status	Period
Interim Enhanced Surface Water Treatment Rule	Resolved	Nov 22, 2024 to Nov 23, 2024
CARBON, TOTAL	Resolved	Jan 1, 2024 to Mar 31, 2024
Lead and Copper Rule	Resolved	Apr 1, 2021 to Apr 1, 2021

Kent County Water Authority

RI1559511 · Surface water · 94,107 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.0014 mg/L
Action level: 0.015 mg/L

9% of the listed benchmark

Monitoring period: Jan 1, 2025 to Dec 31, 2025

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

City summary

What the indexed records say

Cranston has 5 published ZIP profiles across Providence County. The regional-evidence median is 19 PPM. Its comparison-eligible median is 19 PPM versus 20 PPM statewide.

Among the 3 Rhode Islandcities meeting the comparison standard, Cranston ranks #3from highest to lowest. Across all 33 state ZIP profiles, available estimates run from 14.6to 65.5 PPM.

The 17.9–20 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft5 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard0 ZIPs

5 of 5 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 3.1 miles
Profiles with evidence: 5/5

Confidence labels

High: 5Moderate: 0Low: 0

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Rhode Island communities

Central Falls

Providence County

22 PPM median

East Providence

Providence County

20 PPM median

Pawtucket

Providence County

22 PPM median

Providence

Providence County

20 PPM median

Woonsocket

Providence County

33 PPM median

Warwick

Kent County

18 PPM median

Search all 12 Rhode Island cities →

Questions people ask

About water in Cranston

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.