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City water profile

Charlestown water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Charlestown, Rhode Island.

Median indexed hardness

62PPM

One indexed ZIP

Range 62.4–62.4 PPM

State comparison
19 PPM above
State hardness rank
#2 of 12
Matched utilities
8
Active health records
1

City summary

What the indexed records say

Charlestown has 1 published ZIP profile across Washington County. The indexed median is 62 PPM, compared with 43 PPM across Rhode Island.

Among the 12 Rhode Islandcities with an indexed median, Charlestown ranks #2from highest to lowest. Across all 33 state ZIP profiles, available estimates run from 40.5to 64.1 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard1 ZIP
Hard0 ZIPs
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
8.8 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: May 11, 2016 to Dec 2, 2025.

ZIP directory

Water reports in Charlestown

Open a ZIP for site-level provenance and measurements.

ZIP code

02813

Moderately Hard

62.4 PPM

Nearest site
8.8 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Central Beach Fire District

PWSID RI1647512

Groundwater
System population served
470
Last reported
May 26, 2026

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

Quonochontaug East Beach Water Associati

PWSID RI1647511

Groundwater
System population served
300
Last reported
May 26, 2026

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

Shady Harbor Fire District

PWSID RI1559513

Groundwater
System population served
300
Last reported
May 26, 2026

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

Castle Rock Condominiums

PWSID RI1000035

Groundwater
System population served
292
Last reported
May 26, 2026

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

Charlestown Cedars Llc

PWSID RI2674925

Groundwater
System population served
150
Last reported
May 26, 2026

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

Ninigret Realty

PWSID RI2674928

Groundwater
System population served
109
Last reported
May 26, 2026

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

Church Woods

PWSID RI2980017

Groundwater
System population served
98
Last reported
May 26, 2026

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

Border Hill Mobile Home Park

PWSID RI2674924

Groundwater
System population served
75
Last reported
May 26, 2026

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

Compliance history

What EPA records show

1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Lead and Copper RuleRI1647512Aug 13, 2025Unaddressed · health-based
Consumer Confidence RuleRI2674928Jul 1, 2025Resolved
Lead and Copper RuleRI1647511Jan 1, 2025Unaddressed
Lead and Copper RuleRI1000035Dec 30, 2024Resolved
Xylenes, TotalRI1647512Jan 1, 2024Resolved
DICHLOROMETHANERI1647512Jan 1, 2024Resolved
trans-1,2-DichloroethyleneRI1647512Jan 1, 2024Resolved
1,1,1-TrichloroethaneRI1647512Jan 1, 2024Resolved
TrichloroethyleneRI1647512Jan 1, 2024Resolved
1,1,2-TrichloroethaneRI1647512Jan 1, 2024Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Charlestown

Is the water hard?

The indexed city median is 62 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

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.