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Community Water System · PWS RI1647516

Eleanor Slater Hospital Zambarano Unit

Providence, Rhode Island 02908 - drinking water served from surface water sources to 540 people, tracked in EPA SDWIS and UCMR5.

540
People served
217
EPA violations
181
Health-based
Untested
UCMR5 result

The verdict

EPA records 217 drinking-water violations at Eleanor Slater Hospital Zambarano Unit, 83% of them health-based - above the Rhode Island per-system average.

217
Total EPA violations on record
83%
Health-based (MCL / treatment failure)
540
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Eleanor Slater Hospital Zambarano Unit

Eleanor Slater Hospital Zambarano Unit is a state-owned community water system that delivers drinking water to 540 residents in Providence, Rhode Island (Providence County) through 23 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 217 total violations for this system , of which 181 (83%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 8 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is TTHM, recorded in 111 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%).

Eleanor Slater Hospital Zambarano Unit's 217 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
540
Total Violations
217
Health-Based Violations
181
Water Source
Surface Water

System Details

System Type
Community
Owner Type
State
Connections
23
County
Providence
School/Daycare
No
MCL Violations
173
Monitoring Violations
8
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 111 2008
Coliform (TCR) MCL 42 1997
Total Haloacetic Acids (HAA5) MCL 20 2007
Surface Water Treatment Rule TT 8 1992
Coliform (TCR) MR 5 2006
Lead and Copper Rule MR 3 2020
Consumer Confidence Rule Other 2 2003

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 Eleanor Slater Hospital Zambarano Unit.

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 RI1647516 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
2020 Lead and Copper Rule MR 3 SDWIS / RI1647516 / 5000
2008 TTHM MCL 111 SDWIS / RI1647516 / 2950
2007 Total Haloacetic Acids (HAA5) MCL 20 SDWIS / RI1647516 / 2456
2006 Coliform (TCR) MR 5 SDWIS / RI1647516 / 3100
2003 Consumer Confidence Rule Other 2 SDWIS / RI1647516 / 7000
1997 Coliform (TCR) MCL 42 SDWIS / RI1647516 / 3100
1992 Surface Water Treatment Rule TT 8 SDWIS / RI1647516 / 0200

How Eleanor Slater Hospital Zambarano Unit Compares

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

Metric Eleanor Slater Hospital Zambarano Unit Rhode Island avg Federal benchmark
Total violations 217 72.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 181 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 540 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 Eleanor Slater Hospital Zambarano Unit water safe to drink? ▼
Eleanor Slater Hospital Zambarano Unit (PWS ID: RI1647516) has 217 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 540 people using Surface Water sources.
How many people does Eleanor Slater Hospital Zambarano Unit serve? ▼
Eleanor Slater Hospital Zambarano Unit serves 540 people in Providence, Rhode Island. It is a State-owned system using Surface Water water sources with 23 service connections.
What type of violations does Eleanor Slater Hospital Zambarano Unit have? ▼
Eleanor Slater Hospital Zambarano Unit has 217 total violations: 181 health-based violations (MCL exceedances or treatment failures), 8 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Eleanor Slater Hospital Zambarano Unit water? ▼
No PFAS testing data is available for Eleanor Slater Hospital Zambarano Unit under the EPA's UCMR5 monitoring program.
What water source does Eleanor Slater Hospital Zambarano Unit use? ▼
Eleanor Slater Hospital Zambarano Unit 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. 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.