Contaminant 7000
Unresolved Phase I/II/V Synthetic Organic Chemical Rules violation cited in 2025 (contaminant 7000).
Illinois · drinking water · SDWIS through latest publish
Royal Oaks Mhp Water Quality — Chicago, Illinois
PWSID IL1115145 · GroundwaterPrivate
170 people served. No health-based SDWIS violations recorded in the past 5 years. 1 remains unresolved. Last cited 1 year ago.
Anomaly engine
Active signals
Most-cited contaminants
What This Utility Gets Cited For
- Contaminant 70001 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.
OTHER · CONTAMINANT 7000
2025 · Contaminant 7000 · Phase I/II/V Synthetic Organic Chemical Rules
OTHER
Equity context · ACS 2018-2022 · USEPA-clone EJ disparity
Who Drinks This Water
Chicago, Illinois (Census place; block-group disparity scores aggregated by centroid containment): a service population of 2,721,914. Local disparity score for pm2.5 (fine particulate) sits moderately above the reference (148). Why we surface this →
16.9%
Low-income
67.3%
People of color
5.2%
Under age 5
13.3%
Over age 64
- 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.77above the national median
- OzoneHealth riskGround-level ozone (smog) inflames the airways. Even short exposures trigger asthma attacks and worsen chronic lung and heart disease.91in the highest 10% nationally
- 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.98in the highest 5% 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.94in the highest 10% nationally
- 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.92in the highest 10% 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.93in 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.86in 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.92in 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.94in the highest 10% nationally
- 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.84in the highest 20% 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.96in the highest 5% nationally
- 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.94in the highest 10% 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.76above the national median
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 148 | moderately above the reference |
| Ozone | 159 | well above the reference burden |
| Nitrogen dioxide (NO₂) | 181 | well above the reference burden |
| Diesel particulate | 168 | well above the reference burden |
| Toxic releases (RSEI) | 170 | well above the reference burden |
| Traffic proximity | 166 | well above the reference burden |
| Lead-paint risk (pre-1960 housing) | 154 | well above the reference burden |
| Superfund site proximity | 157 | well above the reference burden |
| RMP-facility proximity | 162 | well above the reference burden |
| Hazardous-waste site proximity | 151 | well above the reference burden |
| Underground storage tanks | 156 | well above the reference burden |
| NPDES wastewater proximity | 172 | well above the reference burden |
| Drinking-water non-compliance | 0 | well 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 2025-01-01 → 2026-05-07.
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.