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Community Water System · PWS RI1615627

Warwick-City Of

Warwick, Rhode Island 02889 - drinking water served from surface water sources to 73,289 people, tracked in EPA SDWIS and UCMR5.

73,289
People served
83
EPA violations
0
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 83 drinking-water violations at Warwick-City Of - above the Rhode Island per-system average.

83
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
73,289
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Warwick-City Of

Warwick-City Of is a local-owned community water system that delivers drinking water to 73,289 residents in Warwick, Rhode Island (Kent County) through 27,044 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 83 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 38 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 28 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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%).

Warwick-City Of's 83 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
73,289
Total Violations
83
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
27,044
County
Kent
School/Daycare
No
MCL Violations
0
Monitoring Violations
38
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 28 2010
Revised Total Coliform Rule RPT 20 2021
Consumer Confidence Rule Other 15 2021
Public Notice Other 9 2021
Total Haloacetic Acids (HAA5) MR 5 2013
TTHM MR 5 2013

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 348 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 9/27/2024 <6.00 ppt 6.00 ppt Not Detected
PFHpS 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeS 9/27/2024 <4.00 ppt 4.00 ppt Not Detected
NFDHA 9/27/2024 <20.00 ppt 20.00 ppt Not Detected
PFEESA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 9/27/2024 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 9/27/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/27/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/27/2024 <5.00 ppt 5.00 ppt Not Detected
PFTA 9/27/2024 <8.00 ppt 8.00 ppt Not Detected
ADONA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 9/27/2024 <7.00 ppt 7.00 ppt Not Detected
9Cl-PF3ONS 9/27/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/27/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 9/27/2024 <2.00 ppt 2.00 ppt Not Detected
PFHxA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/27/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/27/2024 <4.00 ppt 4.00 ppt Not Detected
PFNA 9/27/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxS 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 9/27/2024 <5.00 ppt 5.00 ppt Not Detected
NEtFOSAA 9/27/2024 <5.00 ppt 5.00 ppt Not Detected
NFDHA 9/27/2024 <20.00 ppt 20.00 ppt Not Detected
PFPeA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 9/27/2024 <4.00 ppt 4.00 ppt Not Detected
PFEESA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeS 9/27/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpS 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 9/27/2024 <4.00 ppt 4.00 ppt Not Detected
PFMBA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 9/27/2024 <2.00 ppt 2.00 ppt Not Detected
PFBS 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 9/27/2024 <4.00 ppt 4.00 ppt Not Detected
PFOA 9/27/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 9/27/2024 <5.00 ppt 5.00 ppt Not Detected
11Cl-PF3OUdS 9/27/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 9/27/2024 <2.00 ppt 2.00 ppt Not Detected
ADONA 9/27/2024 <3.00 ppt 3.00 ppt Not Detected
PFBA 9/27/2024 <5.00 ppt 5.00 ppt Not Detected

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 Warwick-City Of.

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 RI1615627 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 RPT 20 SDWIS / RI1615627 / 8000
2021 Consumer Confidence Rule Other 15 SDWIS / RI1615627 / 7000
2021 Public Notice Other 9 SDWIS / RI1615627 / 7500
2013 Total Haloacetic Acids (HAA5) MR 5 SDWIS / RI1615627 / 2456
2013 TTHM MR 5 SDWIS / RI1615627 / 2950
2010 Coliform (TCR) MR 28 SDWIS / RI1615627 / 3100

How Warwick-City Of Compares

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

Metric Warwick-City Of Rhode Island avg Federal benchmark
Total violations 83 72.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 73,289 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 Warwick-City Of water safe to drink?
Warwick-City Of (PWS ID: RI1615627) has 83 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 73,289 people using Surface Water sources.
How many people does Warwick-City Of serve?
Warwick-City Of serves 73,289 people in Warwick, Rhode Island. It is a Local-owned system using Surface Water water sources with 27,044 service connections.
What type of violations does Warwick-City Of have?
Warwick-City Of has 83 total violations: 0 health-based violations (MCL exceedances or treatment failures), 38 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Warwick-City Of water?
No. Warwick-City Of was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Warwick-City Of use?
Warwick-City Of uses Surface Water 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
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.