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Billerica, MA Tap Water Quality 2026

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

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

Main Utility: Billerica Water Works PWSID: MA3031000 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.40 ppb, 16% of the action level and no violations are open. PFAS was detected below the federal limit.

B

Billerica earns a B for water quality

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

Lead: 2.40 ppb — 16% of the federal action level
PFAS detected below the federal limit
3 violations since 2015, 3 health-based
No violations currently open
Billerica's lead level vs. all Massachusetts community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.40 ppb — 16% of the federal action level
✓ Lower lead than 54% of Massachusetts utilities
Population Served
39405
~13758 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
3 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
16% of EPA action level
2.40 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.40 ppb, 16% 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)

ContaminantTypeMeasuredLimitPeriodStatus
Bromate MCL EXCEEDANCE — 0.010 mg/L 2023 Resolved
Bromate MCL EXCEEDANCE — 0.010 mg/L 2023 Archived
Bromate MCL EXCEEDANCE — 0.010 mg/L 2022 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

3 violations are on record since 2015, of which 3 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Billerica Water Works
PWSID MA3031000
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 39,405
Service connections 13,758
Systems serving this area 7
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Billerica tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.40 ppb, 16% of the action level.
Does Billerica water have PFAS? ▼
PFAS was detected but stayed below the federal limit.
Who supplies water to Billerica? ▼
Billerica Water Works (PWSID MA3031000), one of 7 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 2025-05-28. No significant deficiencies were recorded.

What Should Billerica Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
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.
3
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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