Illinois · drinking water · SDWIS through latest publish

Secor Water Quality — Secor, Illinois

PWSID IL2030600 · GroundwaterMunicipal

351 people served. 31 health-based SDWIS violations recorded in the past 5 years. 36 remain unresolved. Last cited 1 year ago.

ALL SDWIS VIOLATIONS · 20222026 (annual count)
Bar chart of annual values from 2022 to 2026, in violations. Most recent year (2026): 0 violations.22 violations'22'23'24'25'260 violations
Anomaly engine

Active signals

UNRESOLVED VIOLATION · SDWIS VIOLATION

Arsenic

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

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Arsenic

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

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 5200

Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (contaminant 5200).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Arsenic

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

EPA SDWIS record

Most-cited contaminants

What This Utility Gets Cited For

  • Arsenic38 citations
  • Contaminant 75004 citations
  • Contaminant 70003 citations
  • Contaminant 52002 citations
  • Contaminant 50002 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.

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

MONITORING · CONTAMINANT 5200UNRESOLVED

2025 · Contaminant 5200 · Phase I/II/V Inorganic Chemical Rules

Reporting failure

CONTAMINANT CODE 5200

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

OTHER · CONTAMINANT 7000UNRESOLVED

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

OTHER

CONTAMINANT CODE 7000

OTHER · CONTAMINANT 7500UNRESOLVED

2025 · Contaminant 7500 · Volatile Organic Chemical Rule

OTHER

CONTAMINANT CODE 7500

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

OTHER · CONTAMINANT 7000

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

OTHER; returned to compliance

CONTAMINANT CODE 7000

OTHER · CONTAMINANT 7000UNRESOLVED

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

OTHER

CONTAMINANT CODE 7000

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

2024 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · CONTAMINANT 5200UNRESOLVED

2024 · Contaminant 5200 · Phase I/II/V Inorganic Chemical Rules

Treatment technique violation

CONTAMINANT CODE 5200

MONITORING · ARSENIC

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

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1005

MONITORING · ARSENIC

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

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1005

MONITORING · ARSENICUNRESOLVED

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

Failure to monitor as scheduled

CONTAMINANT CODE 1005

MONITORING · ARSENICUNRESOLVED

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

Failure to monitor as scheduled

CONTAMINANT CODE 1005

MONITORING · ARSENIC

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

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1005

MONITORING · ARSENIC

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

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1005

MONITORING · ARSENIC

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

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1005

MONITORING · ARSENICUNRESOLVED

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

Failure to monitor as scheduled

CONTAMINANT CODE 1005

MONITORING · ARSENIC

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

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1005

MONITORING · ARSENIC

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

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

OTHER · CONTAMINANT 7500

2023 · Contaminant 7500 · Volatile Organic Chemical Rule

OTHER; returned to compliance

CONTAMINANT CODE 7500

OTHER · CONTAMINANT 7500

2023 · Contaminant 7500 · Volatile Organic Chemical Rule

OTHER; returned to compliance

CONTAMINANT CODE 7500

OTHER · CONTAMINANT 7500

2023 · Contaminant 7500 · Volatile Organic Chemical Rule

OTHER; returned to compliance

CONTAMINANT CODE 7500

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · ARSENICUNRESOLVED

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

Maximum contaminant level exceeded

CONTAMINANT CODE 1005

HEALTH-BASED · CONTAMINANT 5000

2022 · Contaminant 5000 · Phase I/II/V Inorganic Chemical Rules

Treatment technique violation; returned to compliance

CONTAMINANT CODE 5000

HEALTH-BASED · CONTAMINANT 5000

2022 · Contaminant 5000 · Phase I/II/V Inorganic Chemical Rules

Treatment technique violation; returned to compliance

CONTAMINANT CODE 5000

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

Who Drinks This Water

Woodford County, Illinois (utility's served county per SDWIS GEOGRAPHIC_AREA — city-level not yet matched): a service population of 38,414. Local disparity score for pm2.5 (fine particulate) sits well below the reference (36). Why we surface this →

POPULATION SHARE
7.5%

Low-income

POPULATION SHARE
5.4%

People of color

POPULATION SHARE
7.2%

Under age 5

POPULATION SHARE
18.4%

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.64above the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.68above 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.32below 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.27below 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.50near 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.17below 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.70above 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.56near 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.51near 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.25below 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.49near 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.85in the highest 20% nationally
  • 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.77above the national median
EJ disparity scores · service-area block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)36well below the reference
Ozone37well below the reference
Nitrogen dioxide (NO₂)19well below the reference
Diesel particulate16well below the reference
Toxic releases (RSEI)25well below the reference
Traffic proximity9well below the reference
Lead-paint risk (pre-1960 housing)37well below the reference
Superfund site proximity0well below the reference
RMP-facility proximity23well below the reference
Hazardous-waste site proximity12well below the reference
Underground storage tanks22well below the reference
NPDES wastewater proximity17well below the reference
Drinking-water non-compliance3well 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 2022-01-012026-05-07.

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.