City water profile

Water hardness in Charlestown

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

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 8
Active health records: 1

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.

Central Beach Fire District

RI1647512 · Groundwater · 470 people served system-wide

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

1 reported active health-based record(s) for this system

Find this utility’s official report →

Measurements (3)

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: 6.0e-4 mg/L
Action level: 0.015 mg/L

4% of the listed benchmark

Monitoring period: Jan 1, 2021 to Dec 31, 2023

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 1.6655 mg/L
Action level: 1.3 mg/L

128% of the listed benchmark

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

Nitrate

EPA SDWIS reported health-based violation

Reported violation

Reported level: 14 MG/L
Maximum contaminant level: 10 MG/L

140% of the listed benchmark

Monitoring period: Jul 1, 2023 to Sep 30, 2023

Violation history (26)

Imported violation history for Central Beach Fire District
Rule	Status	Period
Lead and Copper RuleHealth-based	Unaddressed	Aug 13, 2025
Xylenes, Total	Resolved	Jan 1, 2024 to Dec 31, 2024
DICHLOROMETHANE	Resolved	Jan 1, 2024 to Dec 31, 2024
trans-1,2-Dichloroethylene	Resolved	Jan 1, 2024 to Dec 31, 2024
1,1,1-Trichloroethane	Resolved	Jan 1, 2024 to Dec 31, 2024
Trichloroethylene	Resolved	Jan 1, 2024 to Dec 31, 2024
1,1,2-Trichloroethane	Resolved	Jan 1, 2024 to Dec 31, 2024
CHLOROBENZENE	Resolved	Jan 1, 2024 to Dec 31, 2024
Benzene	Resolved	Jan 1, 2024 to Dec 31, 2024
Toluene	Resolved	Jan 1, 2024 to Dec 31, 2024
Styrene	Resolved	Jan 1, 2024 to Dec 31, 2024
cis-1,2-Dichloroethylene	Resolved	Jan 1, 2024 to Dec 31, 2024
1,1-Dichloroethylene	Resolved	Jan 1, 2024 to Dec 31, 2024
p-Dichlorobenzene	Resolved	Jan 1, 2024 to Dec 31, 2024
1,2,4-Trichlorobenzene	Resolved	Jan 1, 2024 to Dec 31, 2024
o-Dichlorobenzene	Resolved	Jan 1, 2024 to Dec 31, 2024
Combined Uranium	Resolved	Jan 1, 2024 to Dec 31, 2024
Ethylbenzene	Resolved	Jan 1, 2024 to Dec 31, 2024
Tetrachloroethylene	Resolved	Jan 1, 2024 to Dec 31, 2024
Vinyl chloride	Resolved	Jan 1, 2024 to Dec 31, 2024
Carbon tetrachloride	Resolved	Jan 1, 2024 to Dec 31, 2024
1,2-Dichloroethane	Resolved	Jan 1, 2024 to Dec 31, 2024
1,2-Dichloropropane	Resolved	Jan 1, 2024 to Dec 31, 2024
Public Notice	Resolved	Aug 30, 2023 to Nov 1, 2023
NitrateHealth-based	Resolved	Jul 1, 2023 to Sep 30, 2023
Nitrate	Resolved	Jul 1, 2023 to Sep 30, 2023

Quonochontaug East Beach Water Associati

RI1647511 · Groundwater · 300 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 (2)

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: 0.0026 mg/L
Action level: 0.015 mg/L

17% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 1.7429 mg/L
Action level: 1.3 mg/L

134% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (58)

Imported violation history for Quonochontaug East Beach Water Associati
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Jan 1, 2025
BHC-GAMMA	Resolved	Jan 1, 2023 to Dec 31, 2023
Toxaphene	Resolved	Jan 1, 2023 to Dec 31, 2023
Di(2-ethylhexyl) adipate	Resolved	Jan 1, 2023 to Dec 31, 2023
OXAMYL	Resolved	Jan 1, 2023 to Dec 31, 2023
Simazine	Resolved	Jan 1, 2023 to Dec 31, 2023
Di(2-ethylhexyl) phthalate	Resolved	Jan 1, 2023 to Dec 31, 2023
Hexachlorocyclopentadiene	Resolved	Jan 1, 2023 to Dec 31, 2023
Aldicarb sulfone	Resolved	Jan 1, 2023 to Dec 31, 2023
Carbofuran	Resolved	Jan 1, 2023 to Dec 31, 2023
Aldicarb	Resolved	Jan 1, 2023 to Dec 31, 2023
Atrazine	Resolved	Jan 1, 2023 to Dec 31, 2023
LASSO	Resolved	Jan 1, 2023 to Dec 31, 2023
Heptachlor	Resolved	Jan 1, 2023 to Dec 31, 2023
Heptachlor epoxide	Resolved	Jan 1, 2023 to Dec 31, 2023
2,4-D	Resolved	Jan 1, 2023 to Dec 31, 2023
HEXACHLOROBENZENE	Resolved	Jan 1, 2023 to Dec 31, 2023
Pentachlorophenol	Resolved	Jan 1, 2023 to Dec 31, 2023
ETHYLENE DIBROMIDE	Resolved	Jan 1, 2023 to Dec 31, 2023
Dinoseb	Resolved	Jan 1, 2023 to Dec 31, 2023
Dalapon	Resolved	Jan 1, 2023 to Dec 31, 2023
Benzo(a)pyrene	Resolved	Jan 1, 2023 to Dec 31, 2023
2,4,5-TP	Resolved	Jan 1, 2023 to Dec 31, 2023
Endrin	Resolved	Jan 1, 2023 to Dec 31, 2023
Methoxychlor	Resolved	Jan 1, 2023 to Dec 31, 2023
Chlordane	Resolved	Jan 1, 2023 to Dec 31, 2023
Picloram	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2-DIBROMO-3-CHLOROPROPANE	Resolved	Jan 1, 2023 to Dec 31, 2023
Aldicarb sulfoxide	Resolved	Jan 1, 2023 to Dec 31, 2023
Endrin	Resolved	Jan 1, 2022 to Mar 31, 2022
BHC-GAMMA	Resolved	Jan 1, 2022 to Mar 31, 2022
Methoxychlor	Resolved	Jan 1, 2022 to Mar 31, 2022
Dalapon	Resolved	Jan 1, 2022 to Mar 31, 2022
Di(2-ethylhexyl) adipate	Resolved	Jan 1, 2022 to Mar 31, 2022
OXAMYL	Resolved	Jan 1, 2022 to Mar 31, 2022
Di(2-ethylhexyl) phthalate	Resolved	Jan 1, 2022 to Mar 31, 2022
Picloram	Resolved	Jan 1, 2022 to Mar 31, 2022
Dinoseb	Resolved	Jan 1, 2022 to Mar 31, 2022
Aldicarb sulfoxide	Resolved	Jan 1, 2022 to Mar 31, 2022
Aldicarb sulfone	Resolved	Jan 1, 2022 to Mar 31, 2022
Carbofuran	Resolved	Jan 1, 2022 to Mar 31, 2022
Aldicarb	Resolved	Jan 1, 2022 to Mar 31, 2022
Atrazine	Resolved	Jan 1, 2022 to Mar 31, 2022
LASSO	Resolved	Jan 1, 2022 to Mar 31, 2022
Heptachlor	Resolved	Jan 1, 2022 to Mar 31, 2022
2,4-D	Resolved	Jan 1, 2022 to Mar 31, 2022
Pentachlorophenol	Resolved	Jan 1, 2022 to Mar 31, 2022
1,2-DIBROMO-3-CHLOROPROPANE	Resolved	Jan 1, 2022 to Mar 31, 2022
Chlordane	Resolved	Jan 1, 2022 to Mar 31, 2022
2,4,5-TP	Resolved	Jan 1, 2022 to Mar 31, 2022
HEXACHLOROBENZENE	Resolved	Jan 1, 2022 to Mar 31, 2022
Benzo(a)pyrene	Resolved	Jan 1, 2022 to Mar 31, 2022
Simazine	Resolved	Jan 1, 2022 to Mar 31, 2022
ETHYLENE DIBROMIDE	Resolved	Jan 1, 2022 to Mar 31, 2022
Heptachlor epoxide	Resolved	Jan 1, 2022 to Mar 31, 2022
Hexachlorocyclopentadiene	Resolved	Jan 1, 2022 to Mar 31, 2022
Toxaphene	Resolved	Jan 1, 2022 to Mar 31, 2022
Lead and Copper Rule	Resolved	Dec 30, 2021 to Mar 28, 2022

Shady Harbor Fire District

RI1559513 · Groundwater · 300 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 (2)

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: 0.0019 mg/L
Action level: 0.015 mg/L

13% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 2.54 mg/L
Action level: 1.3 mg/L

195% of the listed benchmark

Monitoring period: Jul 1, 1993 to Dec 31, 1993

Violation history (1)

Imported violation history for Shady Harbor Fire District
Rule	Status	Period
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Jul 25, 2023

Castle Rock Condominiums

RI1000035 · Groundwater · 292 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 (2)

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: 0.002 mg/L
Action level: 0.015 mg/L

13% of the listed benchmark

Monitoring period: Jan 1, 2021 to Dec 31, 2023

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 4.31 mg/L
Action level: 1.3 mg/L

332% of the listed benchmark

Monitoring period: Jul 1, 1993 to Dec 31, 1993

Violation history (2)

Imported violation history for Castle Rock Condominiums
Rule	Status	Period
Lead and Copper Rule	Resolved	Dec 30, 2024 to Feb 27, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Aug 3, 2023

Charlestown Cedars Llc

RI2674925 · Groundwater · 150 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 (2)

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: 0.001 mg/L
Action level: 0.015 mg/L

7% of the listed benchmark

Monitoring period: Jan 1, 2021 to Dec 31, 2023

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 2.44 mg/L
Action level: 1.3 mg/L

188% of the listed benchmark

Monitoring period: Jan 1, 2009 to Jun 30, 2009

Violation history (0)

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

Ninigret Realty

RI2674928 · Groundwater · 109 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 (2)

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: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2023

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 1.526 mg/L
Action level: 1.3 mg/L

117% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2023

Violation history (2)

Imported violation history for Ninigret Realty
Rule	Status	Period
Consumer Confidence Rule	Resolved	Jul 1, 2025 to Jul 2, 2025
Revised Total Coliform Rule	Resolved	Aug 1, 2023 to Aug 31, 2023

Church Woods

RI2980017 · Groundwater · 98 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 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2023

Violation history (0)

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

Border Hill Mobile Home Park

RI2674924 · Groundwater · 75 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 (2)

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: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 1.5 mg/L
Action level: 1.3 mg/L

115% of the listed benchmark

Monitoring period: Jan 1, 2007 to Jun 30, 2007

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

Charlestown has 1 published ZIP profile across Washington County. The regional-evidence median is 54 PPM. The city does not meet the stricter comparison standard.

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. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft1 ZIP

Moderately hard0 ZIPs

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: 0Low: 1

Observation window: Apr 11, 2017 to Sep 17, 2019.

ZIP directory

Water reports in Charlestown

Open a ZIP for site-level provenance and measurements.

ZIP code

02813

Soft

53.9 PPM

Nearest site: 8.8 mi
Confidence: Low

View full ZIP evidence →

Practical next steps

Move from index to evidence

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

Hopkinton

Washington County

62 PPM median

Westerly

Washington County

66 PPM median

Tiverton

Newport County

46 PPM median

Woonsocket

Providence County

33 PPM median

Newport

Newport County

23 PPM median

Pawtucket

Providence County

22 PPM median

Search all 12 Rhode Island cities →

Questions people ask

About water in Charlestown

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.