B
83

Record-only indicator: B

Not a safety rating. Missing or old measurements can produce a high score.

Coverage: 5/5 mapped systems have a dated lead result; 0/5 have copper results; 1/5 have UCMR monitoring.

Tiverton, RI 02878

Newport County · Population served: 8,969 · SDWIS 2026-07-21 · UCMR5 August 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

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NORTH TIVERTON FIRE DISTRICT
Surface water · Pop. 8,969

Lead: 1.0 ppb; period end 12/31/2023. Copper: not available ppb; period end unknown.

PWSID: RI1592018
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TIVERTON WATER AUTHORITY, TOWN HALL
Surface water · Pop. 3,213

Lead: 3.0 ppb; period end 12/31/2024. Copper: not available ppb; period end unknown.

PWSID: RI1900042
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STONE BRIDGE FIRE DISTRICT
Surface water · Pop. 2,793

Lead: 5.0 ppb; period end 12/31/2011. Copper: not available ppb; period end unknown.

PWSID: RI1615619
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FOUR SEASONS MHP CO-OP ASSN.
Groundwater · Pop. 40

Lead: 5.0 ppb; period end 12/31/2010. Copper: not available ppb; period end unknown.

PWSID: RI2980001
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LAWRENCE SUNSET COVE ASSOCIATION
Groundwater · Pop. 36

Lead: 0.8 ppb; period end 12/31/2023. Copper: not available ppb; period end unknown.

PWSID: RI2980003

Reported lead and copper results

ContaminantReported value or boundHistorical comparison valueInterpretationStatus
Lead
5.0 ppbPeriod end: 12/31/2011
15 ppb Largest reported value or bound among mapped systems; not necessarily the largest actual concentration. At/below comparison value

PFAS / Forever Chemicals

2 detected 1 above comparison value

UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.

CompoundLevelEPA MCLInterpretationStatus
PFOA5.1 ppt4 ppt4 pptAbove comparison value
PFPeA3.2 pptNo standard—No federal MCL shown

Violation History (Last 5 Years)

31Total (5yr)
1Health-Based
23Major

Public-record summary

Understanding Your Water in Tiverton

Record-only indicator — incomplete or old records can produce a high score. A score of 100 is not a safety finding. Coverage: 5/5 mapped systems have a dated lead result; 0/5 have copper results; 1/5 have UCMR monitoring. Tap water quality in Tiverton, Rhode Island (02878) receives an record-only indicator of B (Moderate-low record-based concern) with a score of 83 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the Rhode Island state average of 82. The area is served by 5 water systems providing water to approximately 8,969 people, using surface water and groundwater sources. Notably, 1 PFAS compound exceeds the EPA final MCL value used for comparison — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 31 violations, including 1 health-based violations.

Record-only score 83/100 B
vs State ▲ 1 pts above Rhode Island avg (82)
Comparison limits No national safety ranking: coverage and service areas overlap.

What a Grade B Means

Grade B summarizes the records available to this model, not household safety. Missing, bounded or old measurements can produce a high score, including 100. Review coverage, dates and the current utility report before interpreting this indicator.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

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Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

The record-only indicator is B (83/100). It cannot determine whether your tap water is safe. Missing, bounded or old measurements can produce a high score. Check the coverage and sampling dates below and your utility's current notices.

ZIP code 02878 is served by 5 water systems using surface water, groundwater sources, providing water to approximately 8,969 people. Multiple source types mean your water may come from a blend of surface and underground sources.

The largest reported lead value or bound is 5.0 ppb, for the sampling period ending 12/31/2011. This is a system-level 90th-percentile record, not a measurement at your tap. Compare the sampling date and original utility report before interpreting it.

Yes — 2 PFAS compounds were detected in records associated with water serving Tiverton, Rhode Island, and 1 result exceeded the numerical EPA MCL value used for comparison. UCMR5 occurrence results alone are not a regulatory compliance determination. PFAS rules and compliance timelines are evolving; verify current information with the utility and EPA.

Water systems serving Tiverton, Rhode Island have received 31 violations in the last 5 years, including 1 health-based violation. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

This public-record indicator cannot select household treatment. Confirm your supplier, current utility report and tap-testing results first; match any treatment to a certified contaminant-reduction claim and follow its maintenance instructions.

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