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Community Water System · PWS RI1900053

Canonchet Cliffs Water Association Inc.

Hope Valley, Rhode Island 02832 - drinking water served from groundwater sources to 154 people, tracked in EPA SDWIS and UCMR5.

154
People served
132
EPA violations
113
Health-based
Untested
UCMR5 result

The verdict

EPA records 132 drinking-water violations at Canonchet Cliffs Water Association Inc., 86% of them health-based - above the Rhode Island per-system average.

132
Total EPA violations on record
86%
Health-based (MCL / treatment failure)
154
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Canonchet Cliffs Water Association Inc.

Canonchet Cliffs Water Association Inc. is a local-owned community water system that delivers drinking water to 154 residents in Hope Valley, Rhode Island (Washington County) through 10 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 132 total violations for this system , of which 113 (86%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 10 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 56 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Rhode Island, EPA tracks 463 public water systems serving 1,159,492 people, with 33,766 cumulative violations and 8,949 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 72.9 violations. Statewide, 15 of 29 UCMR5-tested systems have reported PFAS detections (51.7%).

Canonchet Cliffs Water Association Inc.'s 132 violations sit above the Rhode Island average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
154
Total Violations
132
Health-Based Violations
113
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
10
County
Washington
School/Daycare
No
MCL Violations
103
Monitoring Violations
10
Treatment Tech Violations
10

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 56 2015
Combined Radium (-226 and -228) MCL 41 2020
Revised Total Coliform Rule TT 10 2018
Revised Total Coliform Rule MCL 6 2021
Consumer Confidence Rule Other 5 2004
Radium-228 MR 5 2018
Radium-226 MR 5 2018
Public Notice Other 3 2016

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Canonchet Cliffs Water Association Inc..

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID RI1900053 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Rhode Island Drinking Water Authority

Rhode Island's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find RI regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2021 Revised Total Coliform Rule MCL 6 SDWIS / RI1900053 / 8000
2020 Combined Radium (-226 and -228) MCL 41 SDWIS / RI1900053 / 4010
2018 Revised Total Coliform Rule TT 10 SDWIS / RI1900053 / 8000
2018 Radium-228 MR 5 SDWIS / RI1900053 / 4030
2018 Radium-226 MR 5 SDWIS / RI1900053 / 4020
2016 Public Notice Other 3 SDWIS / RI1900053 / 7500
2015 Coliform (TCR) MCL 56 SDWIS / RI1900053 / 3100
2004 Consumer Confidence Rule Other 5 SDWIS / RI1900053 / 7000

How Canonchet Cliffs Water Association Inc. Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Canonchet Cliffs Water Association Inc. Rhode Island avg Federal benchmark
Total violations 132 72.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 113 19.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 51.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 154 2,504 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 463 regulated public water systems in Rhode Island.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Canonchet Cliffs Water Association Inc. water safe to drink? ▼
Canonchet Cliffs Water Association Inc. (PWS ID: RI1900053) has 132 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 154 people using Groundwater sources.
How many people does Canonchet Cliffs Water Association Inc. serve? ▼
Canonchet Cliffs Water Association Inc. serves 154 people in Hope Valley, Rhode Island. It is a Local-owned system using Groundwater water sources with 10 service connections.
What type of violations does Canonchet Cliffs Water Association Inc. have? ▼
Canonchet Cliffs Water Association Inc. has 132 total violations: 113 health-based violations (MCL exceedances or treatment failures), 10 monitoring/reporting violations, and 10 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Canonchet Cliffs Water Association Inc. water? ▼
No PFAS testing data is available for Canonchet Cliffs Water Association Inc. under the EPA's UCMR5 monitoring program.
What water source does Canonchet Cliffs Water Association Inc. use? ▼
Canonchet Cliffs Water Association Inc. uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.