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Preparing O'Fallon environmental records...
Public environmental health records for water, air, land, infrastructure, incidents, and community indicators.
Toxin Scout summarizes public records from government and public datasets. Data can be delayed, incomplete, approximate, matched at non-parcel levels, or have accuracy problems as a result of this product's beta status, so verify important findings against the linked source records.
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Preparing O'Fallon environmental records...
Drinking water compliance, PFAS records, natural water body health, discharge permits, and water-quality monitoring records for O'Fallon.
Public water-system records for O'Fallon, MO from EPA SDWIS.
St Charles Co Pwsd #2 Wright City
Active major or public-notice drinking-water issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 3,550 people
St Paul Pws
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 1,700 people
St Charles County Pwsd 2
PFAS detected below the official threshold used by this report.
Reviewed: active/open records as of Q1 2026
Purchased or imported water record · Serves 100,587 people
Data from EPA SDWIS
PFAS screening separates EPA UCMR5 drinking-water monitoring from nearby DoD PFAS investigation-site records; EPA samples shown are from Apr 2024.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not O'Fallon drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation site records surfaced within the search radius.
No health-relevant impaired water body records surfaced within 10 km in EPA ATTAINS.
Data from EPA ATTAINS
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
No NPDES-permitted facility records with violations surfaced for this city report.
Reviewed: active/open records as of Q4 2025
Data from EPA ECHO
Air quality data from EPA monitoring stations, facility emissions inventories, and area-level air-quality designations in this city.
St. Charles County
Reported: Dec 2020
EPA national average is ~30 per million
According to EPA, a cancer risk of 40-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 40 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top local emission sources
Data from EPA AirToxScreen
This area meets EPA's National Ambient Air Quality Standards (NAAQS) for all criteria pollutants
No nonattainment designations apply to this location.
Foley West
Annual mean: 0.0 ppm · EPA standard: 0.07 ppm
Annual standard context: 2 exceedance days recorded in the reporting period
Reported: Mar 2026
Maryland Heights
Annual mean: 0.0 ppm · EPA standard: 0.07 ppm
Annual standard context: 2 exceedance days recorded in the reporting period
Reported: Mar 2026
Orchard Farm
Annual mean: 0.0 ppm · EPA standard: 0.07 ppm
Annual standard context: 1 exceedance day recorded in the reporting period
Reported: Mar 2026
Data from EPA AQS
Reviewed: source records as of Q4 2025
TRI releases are self-reported annual totals (calendar year 2024). Hover fugitive or stack for definitions.
Memc LLC
Reported: 2024
Contaminated sites, waste facilities, cleanup records, and industrial operations in this city.
Reviewed: source query run Jun 2026
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHONo matching brownfield records with active cleanup or investigation status surfaced for this city report.
Reviewed: active/open records as of Q1 2026
Facilities with hazardous-waste handler records under RCRA in the reviewed 5-mile city-center search area. Active handler status is separate from air, water, or other ECHO compliance violations, which are shown in their own sections.
Active RCRA handler records in the reviewed city search area
No underground storage tank records with active/open release status surfaced within 2 miles.
Data from EPA UST Finder
Reviewed: reporting year 2024
Sites regulated by the Mine Safety and Health Administration, including mines, sand and gravel operations, and portable crushers. Status and type are from the MSHA Mine Data Retrieval System. Records with active/intermittent status dates older than 5 years are shown as older records rather than current active sites.
No recently updated active or intermittent MSHA-regulated sites within 5 miles.
Reviewed: status dates within last 5 years
Data from MSHA
St. Charles County, MO
Reported: Mar 2026
St. Charles County is EPA Radon Zone 2 (moderate potential). EPA defines Zone 2 counties as having predicted average indoor screening levels between 2 pCi/L and 4 pCi/L.
Radon levels can vary from home to home, so EPA recommends testing the property to know its indoor level.
Flood-map status, chemical accident risk, nuclear facilities, pipeline incidents, and community health indicators in this city.
Risk Management Program facilities handle extremely hazardous substances (e.g., chlorine, ammonia, propane). EPA requires these facilities to plan for worst-case chemical releases.
No facility records with recent chemical accidents surfaced for this property within the last five years.
Data from EPA ECHO
PHMSA tracks incidents involving natural gas and hazardous liquid pipelines. Incidents include leaks, ruptures, and explosions.
Recent Incidents (last 5 years)
SPIRE MISSOURI INC. EAST
Reported: Jan 1, 2022
Data from PHMSA
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
St. Charles County, MissouriPop. 413,803
Reported: Mar 2026
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking Water Violations
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 6,115 | 9,478 | 7,972 |
| Poor or Fair Health | 12.5% | 16.4% | 14.2% |
| Poor Physical Health Days | 3.3 | 3.7 | 3.3 |
| Poor Mental Health Days | 5.0 | 5.2 | 4.8 |
| Adult Smoking | 13.4% | 18.1% | 15.0% |
| Adult Obesity | 37.0% | 37.6% | 34.0% |
| Air Pollution - Particulate Matter | 9.6 | 7.6 | 7.3 |
| Drinking Water Violations | 0 | 0 | N/A |
| Diabetes Prevalence | 7.9% | 9.9% | 9.6% |
| Life Expectancy | 79.3 | 75.8 | 77.6 |