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Upton, MA Tap Water Quality 2026

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

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

Main Utility: Upton Dpw Water/wastewater Division PWSID: MA2303000 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.60 ppb, 11% of the action level and no violations are open. No PFAS was detected.

A

Upton earns an A for water quality

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

Lead: 1.60 ppb — 11% of the federal action level
PFAS tested, none detected
36 violations since 2015, 0 health-based
No violations currently open
Upton's lead level vs. all Massachusetts community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.60 ppb — 11% of the federal action level
✓ Lower lead than 77% of Massachusetts utilities
Population Served
6476
~1832 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
36 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
11% of EPA action level
1.60 ppb
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
373.8% of EPA action level
4,860 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 1.60 ppb, 11% 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. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2024 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2024 Resolved
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2022 Archived
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2022 Archived
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2022 Archived
Endrin MONITORING AND REPORTING — 0.002 mg/L 2022 Archived
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2022 Archived
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2022 Archived
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2022 Archived
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2022 Archived
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2022 Archived
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2022 Archived
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2022 Archived
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2022 Archived
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2022 Archived
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2022 Archived
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2022 Archived
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2022 Archived
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2022 Archived
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2022 Archived
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2022 Archived
Diquat MONITORING AND REPORTING — 0.02 mg/L 2022 Archived
Endothall MONITORING AND REPORTING — 0.1 mg/L 2022 Archived
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2022 Archived
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2022 Archived
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2022 Archived
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2022 Archived
Picloram MONITORING AND REPORTING — 0.5 mg/L 2022 Archived
Simazine MONITORING AND REPORTING — 0.004 mg/L 2022 Archived
2,3,7,8-TCDD MONITORING AND REPORTING — 0.00000003 mg/L 2022 Archived
LASSO MONITORING AND REPORTING — — 2022 Archived
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2022 Archived
E. COLI MONITORING AND REPORTING — 0 2017 Addressed
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

36 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Upton Dpw Water/Wastewater Division
PWSID MA2303000
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 6,476
Service connections 1,832
Systems serving this area 6
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Upton tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.60 ppb, 11% of the action level.
Does Upton water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Upton? ▼
Upton Dpw Water/Wastewater Division (PWSID MA2303000), one of 6 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-08-19. No significant deficiencies were recorded.

What Should Upton 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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