Massachusetts · drinking water · SDWIS through latest publish

Burlington Water Dept Water Quality — Burlington, Massachusetts

PWSID MA3048000 · Surface waterMunicipal

26,680 people served. No health-based SDWIS violations recorded in the past 5 years. 12 remain unresolved. Last cited 3 years ago.

ALL SDWIS VIOLATIONS · 20232026 (annual count)
Bar chart of annual values from 2023 to 2026, in violations. Most recent year (2026): 0 violations.12 violations'23'24'25'260 violations
Anomaly engine

Active signals

UNRESOLVED VIOLATION · SDWIS VIOLATION

Gross Alpha (excl. radon, uranium)

Unresolved Lead and Copper Rule violation cited in 2023 (gross alpha (excl. radon, uranium)).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Gross Alpha (excl. radon, uranium)

Unresolved Lead and Copper Rule violation cited in 2023 (gross alpha (excl. radon, uranium)).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Gross Alpha (excl. radon, uranium)

Unresolved Lead and Copper Rule violation cited in 2023 (gross alpha (excl. radon, uranium)).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Gross Alpha (excl. radon, uranium)

Unresolved Lead and Copper Rule violation cited in 2023 (gross alpha (excl. radon, uranium)).

EPA SDWIS record

Most-cited contaminants

What This Utility Gets Cited For

  • Gross Alpha (excl. radon, uranium)4 citations
  • Beryllium4 citations
  • Cyanide4 citations
Violation history

What's On The SDWIS Record

Health-based violations exceed an MCL or treatment-technique standard. Monitoring violations are reporting failures with no measured exceedance — they tell you the system isn't fully transparent, not that the water is unsafe today.

MONITORING · GROSS ALPHA (EXCL. RADON, URANIUM)UNRESOLVED

2023 · Gross Alpha (excl. radon, uranium) · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 4002

MONITORING · GROSS ALPHA (EXCL. RADON, URANIUM)UNRESOLVED

2023 · Gross Alpha (excl. radon, uranium) · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 4002

MONITORING · GROSS ALPHA (EXCL. RADON, URANIUM)UNRESOLVED

2023 · Gross Alpha (excl. radon, uranium) · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 4002

MONITORING · GROSS ALPHA (EXCL. RADON, URANIUM)UNRESOLVED

2023 · Gross Alpha (excl. radon, uranium) · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 4002

MONITORING · BERYLLIUMUNRESOLVED

2023 · Beryllium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1040

MONITORING · BERYLLIUMUNRESOLVED

2023 · Beryllium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1040

MONITORING · BERYLLIUMUNRESOLVED

2023 · Beryllium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1040

MONITORING · BERYLLIUMUNRESOLVED

2023 · Beryllium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1040

MONITORING · CYANIDEUNRESOLVED

2023 · Cyanide · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1041

MONITORING · CYANIDEUNRESOLVED

2023 · Cyanide · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1041

MONITORING · CYANIDEUNRESOLVED

2023 · Cyanide · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1041

MONITORING · CYANIDEUNRESOLVED

2023 · Cyanide · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1041

Equity context · ACS 2018-2022 · USEPA-clone EJ disparity

Who Drinks This Water

Burlington, Massachusetts (Census place; block-group disparity scores aggregated by centroid containment): a service population of 26,169. Local disparity score for pm2.5 (fine particulate) sits well below the reference (7). Why we surface this →

POPULATION SHARE
5.2%

Low-income

POPULATION SHARE
24.6%

People of color

POPULATION SHARE
6.5%

Under age 5

POPULATION SHARE
21.5%

Over age 64

NATIONAL PERCENTILE · vs all US block groups (population-weighted; ranked against the national EJScreen indicator distribution)

  • PM2.5 (fine particulate)Health riskFine inhalable particles 2.5 micrometers or smaller. They travel deep into the lungs and into the bloodstream — linked to asthma, heart disease, stroke, and premature death.9below the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.16below the national median
  • Nitrogen dioxide (NO₂)Health riskA tailpipe and combustion gas. Concentrates near busy roads and industrial sites; raises risk of airway inflammation, asthma, and lower respiratory infections in children.67above the national median
  • Diesel particulateHealth riskSoot from diesel engines (trucks, trains, ports, construction). EPA classifies it as a likely human carcinogen and a major driver of childhood asthma near freight corridors.58near the national median
  • Toxic releases (RSEI)Health riskEPA's Risk-Screening Environmental Indicators score — weights TRI chemical releases by toxicity, where they go, and how many people are nearby. Higher means greater modeled cancer and chronic-health risk.80above the national median
  • Traffic proximityHealth riskPopulation-weighted distance to high-volume roads. Living close to heavy traffic raises exposure to PM2.5, NO₂, and diesel exhaust — and the cardiovascular and asthma risks that follow.94in the highest 10% nationally
  • Lead-paint risk (pre-1960 housing)Health riskShare of housing built before 1960, when lead-based paint was common. Dust from deteriorating paint is the leading cause of childhood lead poisoning, which permanently impairs cognitive development.67above the national median
  • Superfund site proximityHealth riskPopulation-weighted distance to NPL Superfund sites — the most contaminated waste sites in the country. Nearby groundwater, soil, and air can carry industrial solvents, metals, and other long-lived contaminants.94in the highest 10% nationally
  • RMP-facility proximityHealth riskDistance to facilities holding chemicals at quantities large enough to require an EPA Risk Management Plan (refineries, fertilizer plants, etc.). These pose acute exposure risk during accidental releases.52near the national median
  • Hazardous-waste site proximityHealth riskDistance to RCRA hazardous-waste handlers (treatment, storage, disposal facilities). Indicates potential exposure to industrial chemicals in air, soil, and groundwater.93in the highest 10% nationally
  • Underground storage tanksHealth riskDensity of underground tanks (gasoline, heating oil, industrial fluids). Leaking tanks are a leading source of benzene and other volatile organic compounds in groundwater drinking-water supplies.71above the national median
  • NPDES wastewater proximityHealth riskDistance to permitted industrial wastewater dischargers. Closer proximity raises exposure to pollutants released into surface waters used for fishing, recreation, and downstream drinking-water intakes.47near the national median
  • Drinking-water non-complianceHealth riskEPA score for public water systems with health-based Safe Drinking Water Act violations. Higher means more residents on systems that recently exceeded safe limits for contaminants like lead, arsenic, or nitrate.97in the highest 5% nationally
EJ disparity scores · service-area block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)7well below the reference
Ozone17well below the reference
Nitrogen dioxide (NO₂)48well below the reference
Diesel particulate42well below the reference
Toxic releases (RSEI)56below the reference
Traffic proximity66below the reference
Lead-paint risk (pre-1960 housing)38well below the reference
Superfund site proximity65below the reference
RMP-facility proximity34well below the reference
Hazardous-waste site proximity65below the reference
Underground storage tanks44well below the reference
NPDES wastewater proximity33well below the reference
Drinking-water non-compliance66below the reference

Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).

Source. EPA Safe Drinking Water Information System · retrieved 2026-05-07. Reporting period 2023-01-012026-05-07.

What this is not. SDWIS records compliance against federal MCLs — not a direct readout of tap-water concentrations. Active health-based violations are not the same as a current crisis; we link to the EPA record so you can verify return-to-compliance status before forming a conclusion.