Pennsylvania · drinking water · SDWIS through latest publish

Millfair Heights Water System Water Quality — Erie, Pennsylvania

PWSID PA6250075 · GroundwaterPrivate

390 people served. No health-based SDWIS violations recorded in the past 5 years. 3 remain unresolved. Last cited 1 year ago.

ALL SDWIS VIOLATIONS · 20212026 (annual count)
Bar chart of annual values from 2021 to 2026, in violations. Most recent year (2026): 0 violations.13 violations'21'22'23'24'25'260 violations
Anomaly engine

Active signals

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 0700

Unresolved Drinking water rule (140) violation cited in 2025 (contaminant 0700).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Combined Radium 226/228

Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (combined radium 226/228).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Uranium

Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (uranium).

EPA SDWIS record

Most-cited contaminants

What This Utility Gets Cited For

  • Contaminant 070018 citations
  • Contaminant 70006 citations
  • Contaminant 29594 citations
  • Contaminant 80003 citations
  • Contaminant 20632 citations
  • Combined Radium 226/2281 citation
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 · CONTAMINANT 0700UNRESOLVED

2025 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2025 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

OTHER · CONTAMINANT 7000

2025 · Contaminant 7000 · Phase I/II/V Synthetic Organic Chemical Rules

OTHER; returned to compliance

CONTAMINANT CODE 7000

MONITORING · COMBINED RADIUM 226/228UNRESOLVED

2025 · Combined Radium 226/228 · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4000

MONITORING · URANIUMUNRESOLVED

2025 · Uranium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 4006

MONITORING · CONTAMINANT 2063

2024 · Contaminant 2063 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2063

MONITORING · CONTAMINANT 2063

2024 · Contaminant 2063 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2063

OTHER · CONTAMINANT 7000

2024 · Contaminant 7000 · Phase I/II/V Synthetic Organic Chemical Rules

OTHER; returned to compliance

CONTAMINANT CODE 7000

MONITORING · CONTAMINANT 0700

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2024 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

OTHER · CONTAMINANT 7000

2024 · Contaminant 7000 · Phase I/II/V Synthetic Organic Chemical Rules

OTHER; returned to compliance

CONTAMINANT CODE 7000

OTHER · CONTAMINANT 7000

2024 · Contaminant 7000 · Phase I/II/V Synthetic Organic Chemical Rules

OTHER; returned to compliance

CONTAMINANT CODE 7000

MONITORING · CONTAMINANT 8000

2023 · Contaminant 8000 · Revised Total Coliform Rule

Reporting failure; returned to compliance

CONTAMINANT CODE 8000

MONITORING · CONTAMINANT 8000

2023 · Contaminant 8000 · Revised Total Coliform Rule

Reporting failure; returned to compliance

CONTAMINANT CODE 8000

MONITORING · CONTAMINANT 8000

2023 · Contaminant 8000 · Revised Total Coliform Rule

Reporting failure; returned to compliance

CONTAMINANT CODE 8000

MONITORING · CONTAMINANT 0700

2023 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2023 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2023 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2023 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2023 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2023 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

OTHER · CONTAMINANT 7000

2023 · Contaminant 7000 · Phase I/II/V Synthetic Organic Chemical Rules

OTHER; returned to compliance

CONTAMINANT CODE 7000

OTHER · CONTAMINANT 7000

2023 · Contaminant 7000 · Phase I/II/V Synthetic Organic Chemical Rules

OTHER; returned to compliance

CONTAMINANT CODE 7000

MONITORING · CONTAMINANT 0700

2023 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2023 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2022 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2022 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2022 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2022 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2022 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 0700

2022 · Contaminant 0700 · Drinking water rule (140)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0700

MONITORING · CONTAMINANT 2959

2021 · Contaminant 2959 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2959

MONITORING · CONTAMINANT 2959

2021 · Contaminant 2959 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2959

MONITORING · CONTAMINANT 2959

2021 · Contaminant 2959 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2959

MONITORING · CONTAMINANT 2959

2021 · Contaminant 2959 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2959

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

Who Drinks This Water

Erie, Pennsylvania (Census place; block-group disparity scores aggregated by centroid containment): a service population of 94,826. Local disparity score for pm2.5 (fine particulate) sits well below the reference (24). Why we surface this →

POPULATION SHARE
24.3%

Low-income

POPULATION SHARE
32.8%

People of color

POPULATION SHARE
5.6%

Under age 5

POPULATION SHARE
15.5%

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.13below the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.53near 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.83in the highest 20% nationally
  • 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.36below 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.98in the highest 5% nationally
  • 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.51near the national median
  • 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.88in the highest 20% nationally
  • 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.68above the national median
  • 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.72above 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.71above the national median
  • 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.78above 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.45near 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.76above the national median
EJ disparity scores · service-area block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)24well below the reference
Ozone105near the reference
Nitrogen dioxide (NO₂)140moderately above the reference
Diesel particulate62below the reference
Toxic releases (RSEI)156well above the reference burden
Traffic proximity84below the reference
Lead-paint risk (pre-1960 housing)144moderately above the reference
Superfund site proximity104near the reference
RMP-facility proximity118moderately above the reference
Hazardous-waste site proximity118moderately above the reference
Underground storage tanks109near the reference
NPDES wastewater proximity73below the reference
Drinking-water non-compliance0well below 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 2021-01-012026-05-07.

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.