Illinois · drinking water · SDWIS through latest publish

Capron Water Quality — Capron, Illinois

PWSID IL0070100 · GroundwaterMunicipal

1,343 people served. No health-based SDWIS violations recorded in the past 5 years. 18 remain unresolved. Last cited 1 year ago.

ALL SDWIS VIOLATIONS · 20202026 (annual count)
Bar chart of annual values from 2020 to 2026, in violations. Most recent year (2026): 0 violations.20 violations'20'21'22'23'24'25'260 violations
Anomaly engine

Active signals

UNRESOLVED VIOLATION · SDWIS VIOLATION

Beryllium

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

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Beryllium

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

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Contaminant 8000

Unresolved Revised Total Coliform Rule violation cited in 2024 (contaminant 8000).

EPA SDWIS record

UNRESOLVED VIOLATION · SDWIS VIOLATION

Chlorine

Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2024 (chlorine).

EPA SDWIS record

Most-cited contaminants

What This Utility Gets Cited For

  • Contaminant 10288 citations
  • Chromium5 citations
  • Mercury (inorganic)5 citations
  • Contaminant 10325 citations
  • Arsenic5 citations
  • Contaminant 80004 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 · BERYLLIUMUNRESOLVED

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

Failure to monitor as scheduled

CONTAMINANT CODE 1040

MONITORING · BERYLLIUMUNRESOLVED

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

Failure to monitor as scheduled

CONTAMINANT CODE 1040

MONITORING · CONTAMINANT 8000

2024 · Contaminant 8000 · Revised Total Coliform Rule

Monitoring failure; returned to compliance

CONTAMINANT CODE 8000

MONITORING · CONTAMINANT 8000

2024 · Contaminant 8000 · Revised Total Coliform Rule

Monitoring failure; returned to compliance

CONTAMINANT CODE 8000

MONITORING · CONTAMINANT 8000UNRESOLVED

2024 · Contaminant 8000 · Revised Total Coliform Rule

Monitoring failure

CONTAMINANT CODE 8000

MONITORING · CONTAMINANT 8000

2024 · Contaminant 8000 · Revised Total Coliform Rule

Monitoring failure; returned to compliance

CONTAMINANT CODE 8000

MONITORING · CHLORINE

2024 · Chlorine · Disinfectants and Disinfection Byproducts (Stage 2)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0999

MONITORING · CHLORINE

2024 · Chlorine · Disinfectants and Disinfection Byproducts (Stage 2)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0999

MONITORING · CHLORINEUNRESOLVED

2024 · Chlorine · Disinfectants and Disinfection Byproducts (Stage 2)

Failure to monitor as scheduled

CONTAMINANT CODE 0999

MONITORING · CHLORINE

2024 · Chlorine · Disinfectants and Disinfection Byproducts (Stage 2)

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 0999

MONITORING · CONTAMINANT 1028

2022 · Contaminant 1028 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1028

MONITORING · CONTAMINANT 1028

2022 · Contaminant 1028 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1028

MONITORING · CONTAMINANT 1028UNRESOLVED

2022 · Contaminant 1028 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 1028

MONITORING · CONTAMINANT 1028

2022 · Contaminant 1028 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1028

MONITORING · CONTAMINANT 1028

2022 · Contaminant 1028 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1028

MONITORING · CONTAMINANT 2326

2021 · Contaminant 2326 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2326

MONITORING · CONTAMINANT 2326

2021 · Contaminant 2326 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2326

MONITORING · CONTAMINANT 2039

2021 · Contaminant 2039 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2039

MONITORING · CONTAMINANT 2039

2021 · Contaminant 2039 · Nitrate/Nitrite

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 2039

MONITORING · CONTAMINANT 1028

2021 · Contaminant 1028 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1028

MONITORING · CONTAMINANT 1028UNRESOLVED

2021 · Contaminant 1028 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 1028

MONITORING · CONTAMINANT 1028

2021 · Contaminant 1028 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1028

MONITORING · CHROMIUM

2020 · Chromium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1020

MONITORING · CHROMIUMUNRESOLVED

2020 · Chromium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1020

MONITORING · CHROMIUM

2020 · Chromium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1020

MONITORING · CHROMIUMUNRESOLVED

2020 · Chromium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1020

MONITORING · CHROMIUMUNRESOLVED

2020 · Chromium · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1020

MONITORING · MERCURY (INORGANIC)

2020 · Mercury (inorganic) · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1025

MONITORING · MERCURY (INORGANIC)UNRESOLVED

2020 · Mercury (inorganic) · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1025

MONITORING · MERCURY (INORGANIC)

2020 · Mercury (inorganic) · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1025

MONITORING · MERCURY (INORGANIC)UNRESOLVED

2020 · Mercury (inorganic) · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1025

MONITORING · MERCURY (INORGANIC)UNRESOLVED

2020 · Mercury (inorganic) · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1025

MONITORING · CONTAMINANT 1032

2020 · Contaminant 1032 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1032

MONITORING · CONTAMINANT 1032UNRESOLVED

2020 · Contaminant 1032 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 1032

MONITORING · CONTAMINANT 1032

2020 · Contaminant 1032 · Lead and Copper Rule

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1032

MONITORING · CONTAMINANT 1032UNRESOLVED

2020 · Contaminant 1032 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 1032

MONITORING · CONTAMINANT 1032UNRESOLVED

2020 · Contaminant 1032 · Lead and Copper Rule

Failure to monitor as scheduled

CONTAMINANT CODE 1032

MONITORING · ARSENIC

2020 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1005

MONITORING · ARSENICUNRESOLVED

2020 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1005

MONITORING · ARSENIC

2020 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled; returned to compliance

CONTAMINANT CODE 1005

MONITORING · ARSENICUNRESOLVED

2020 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1005

MONITORING · ARSENICUNRESOLVED

2020 · Arsenic · Phase I/II/V Inorganic Chemical Rules

Failure to monitor as scheduled

CONTAMINANT CODE 1005

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

Who Drinks This Water

Boone County, Illinois (utility's served county per SDWIS GEOGRAPHIC_AREA — city-level not yet matched): a service population of 53,459. Local disparity score for pm2.5 (fine particulate) sits below the reference (78). Why we surface this →

POPULATION SHARE
9.8%

Low-income

POPULATION SHARE
29.5%

People of color

POPULATION SHARE
5.9%

Under age 5

POPULATION SHARE
16.3%

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.74above the national median
  • OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.80above 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.50near 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.38below 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.85in the highest 20% 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.34below 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.60above 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.89in the highest 20% 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.79above 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.35below 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.72above 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.75above 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.77above the national median
EJ disparity scores · service-area block groups (100 = national reference; higher = greater disparate burden)
IndicatorDisparity scoreReading
PM2.5 (fine particulate)78below the reference
Ozone74below the reference
Nitrogen dioxide (NO₂)55below the reference
Diesel particulate44well below the reference
Toxic releases (RSEI)86below the reference
Traffic proximity35well below the reference
Lead-paint risk (pre-1960 housing)53below the reference
Superfund site proximity86below the reference
RMP-facility proximity81below the reference
Hazardous-waste site proximity31well below the reference
Underground storage tanks63below the reference
NPDES wastewater proximity77below the reference
Drinking-water non-compliance5well 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 2020-01-012026-05-07.

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.