Swansea, MA Tap Water Quality 2026

Water quality report for Swansea, MA — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Swansea's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Swansea Water District PWSID: MA4292000 Updated: 2026 Q2

✅

No federal limits exceeded on record

Lead is 2.00 ppb, 13% of the action level and no violations are open. PFAS was detected below the federal limit.

Swansea earns a B for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 2.00 ppb — 13% of the federal action level

PFAS detected below the federal limit

11 violations since 2015, 10 health-based

No violations currently open

Swansea's lead level vs. all Massachusetts community water systems

0 ppb5 ppb10 ppb15 ppb

Lead level: 2.00 ppb — 13% of the federal action level

✓ Lower lead than 67% of Massachusetts utilities

Population Served

16408

~6223 connections

Water Source

Surface water

Drawn from surface water — SDWIS source code SW

Active Violations

11 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

13% of EPA action level

2.00 ppb

Action level: 15 ppb

The 90th-percentile lead result is 2.00 ppb, 13% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

Contaminant	Type	Measured	Limit	Period	Status
Consumer Confidence Rule	OTHER	—	—	2022	Resolved
TTHM	MCL EXCEEDANCE	—	0.080 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	—	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	—	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	—	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	—	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	—	0.080 mg/L	2018	Archived
TTHM	MCL EXCEEDANCE	—	0.080 mg/L	2018	Archived
Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2017	Archived
TTHM	MCL EXCEEDANCE	—	0.080 mg/L	2017	Archived
TTHM	MCL EXCEEDANCE	—	0.080 mg/L	2016	Archived

Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

11 violations are on record since 2015, of which 10 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Swansea Water District

PWSID MA4292000

Water source Surface water — Drawn from surface water — SDWIS source code SW

Population served 16,408

Service connections 6,223

Systems serving this area 3

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Swansea tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open. Lead is 2.00 ppb, 13% of the action level.

Does Swansea water have PFAS? ▼

PFAS was detected but stayed below the federal limit.

Who supplies water to Swansea? ▼

Swansea Water District (PWSID MA4292000), one of 3 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW

When was this system last inspected? ▼

It was last inspected on 2025-07-17. No significant deficiencies were recorded.

What Should Swansea Residents Do?

Read your annual water report

Your supplier publishes a Consumer Confidence Report each July covering the prior year.

Check for a lead service line

Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.

Flush before drinking

If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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