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Review government records associated with Cahokia Heights, Illinois.
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Preparing Cahokia Heights environmental records...
Check your water bill for your utility name and confirm the reporting year. See EPA’s guide to finding your annual water quality report.
Public water-system records for Cahokia Heights, IL from EPA SDWIS.
Cahokia Heights
PFAS detected below the official threshold used by this report.
Reviewed: active/open records as of Q1 2026
Purchased or imported water record · Serves 15,250 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 Jan 2024 to Oct 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 Cahokia Heights drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
EPA ATTAINS records identify assessed water bodies that do not meet water-quality standards for designated uses.
Middle Prairie Du Pont Creek
Reported: Nov 2026
Health-relevant causes: Pathogens
Affected uses: Ecological, Recreation
Data from EPA ATTAINS
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
No NPDES-permitted facility records with current violation flags surfaced for this city report.
Reviewed: active/open records as of Q4 2025
Data from EPA ECHO
To investigate water contamination, check the sampling locations, dates and results below. For tap water records, see Drinking water quality above.
Reviewed: source records as of 2026
Review historical EPA air pollution records, including monitoring and facility emissions where available. For current conditions, check local air quality on AirNow.
St. Clair County
Assessment year: 2020
According to EPA, a cancer risk of 30-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 30 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top modeled source groups
Data from EPA AirToxScreen
EPA designates an area as nonattainment when air quality does not meet federal health-based standards (NAAQS) for a specific pollutant.
St. Louis: Ozone
NonattainmentSerious8-Hour Ozone (2015 Standard)
Health effects (EPA): Respiratory inflammation, aggravation of asthma, reduced lung function (EPA)
Maintenance areas
Previously nonattainment; currently meeting the standard and monitored under an EPA maintenance plan.
St. Louis
PM2.5 · PM-2.5 (1997 Standard)
Classification: Moderate
Original designation: Apr 2005
Current design value: 9.9 µg/m³ (2023-2025)
St. Louis-St. Charles-Farmington
Ozone · 8-Hour Ozone (2008 Standard)
Classification: Marginal
Original designation: Jul 2012
Current design value: 0.07 ppm (2023-2025)
Data from EPA Green Book
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
Alton Horace Mann Elementary School
Annual mean: 0.044 Parts per million
EPA primary exceedance count: 1 (Ozone 8-hour 2015)
Observation year: 2025
Annual mean: 8.7 Micrograms/cubic meter (LC)
Observation year: 2025
Arnold West
Annual mean: 10.9 Parts per billion
Observation year: 2025
Data from EPA AQS
Facilities regulated under the Clean Air Act. CAA HPV flags indicate serious noncompliance such as exceeding emission limits.
Air Violations
Last inspected: Dec 2025
Last inspected: Dec 2025
Data from EPA ECHO
TRI releases are self-reported annual totals (calendar year 2024). Hover fugitive or stack for definitions.
Afton Chemical Corp
Reported: 2024
Allnex Usa Inc.
Reported: 2024
Anheuser-Busch LLC
Reported: 2024
EPA records for current, proposed and formerly listed Superfund sites on the National Priorities List (NPL).
Open data source: Search EPA ECHOEPA FRS Registry ID 110009283676
Reported: Nov 2021
EPA FRS Registry ID 110009279985
Reported: Nov 2021
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHO2 sites with active cleanup or investigation status
500 Falling Springs Road, East Saint Louis
Reported: Feb 2026
4926 Church Road, Centreville
Reported: Feb 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 release reports shown in this group.
Reviewed: active/open records as of 2018
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 records shown in this group.
Reviewed: status dates within last 5 years
Data from MSHA
St. Clair County, IL
EPA Radon Zone Map (June 2024 release)
St. Clair 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.
FEMA flood zones describe mapped flood hazards. Look up a specific address with FEMA.
No FEMA flood-zone records shown for this report.
Results use an earlier stored RMP inventory. Current EPA ECHO location coverage is unverified.
EPA ECHO lists facilities linked to the Risk Management Program. Results include facilities with locations that can be matched. Records may be historical. Current operations, chemical inventories, and recent accident history are unverified.
PHMSA tracks incidents involving natural gas and hazardous liquid pipelines. Incidents include leaks, ruptures, and explosions.
Recent Incidents (last 5 years)
EXPLORER PIPELINE CO
Incident date: Jul 26, 2022
Data from PHMSA
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
St. Clair County, IllinoisPop. 252,671
County Health Rankings edition: 2024
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking water violation indicator
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 11,047 | 7,549 | 7,972 |
| Poor or Fair Health | 15.4% | 14.4% | 14.2% |
| Poor Physical Health Days | 3.5 | 3.2 | 3.3 |
| Poor Mental Health Days | 4.6 | 4.2 | 4.8 |
| Adult Smoking | 16.3% | 12.6% | 15.0% |
| Adult Obesity | 43.7% | 34.3% | 34.0% |
| Air Pollution - Particulate Matter | 9.2 | 8.8 | 7.3 |
| Drinking water violation indicator | No | N/A | N/A |
| Diabetes Prevalence | 11.2% | 9.7% | 9.6% |
| Life Expectancy | 74.7 | 78.0 | 77.6 |
EPA testing found PFAS in water samples from Cahokia Heights. Results dated Jan 8, 2024 to Oct 3, 2024 include PFBA at 0.0107 to 0.0148 micrograms per liter and PFHxA at 0.0036 micrograms per liter.
Check with the utility that serves your address for its testing results.
The EPA drinking water records available here list no violations for Cahokia Heights.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
Nearby EPA monitoring stations provide annual air quality measurements for Cahokia Heights.
The monitoring station at Alton Horace Mann Elementary School recorded an annual average of 0.044 Parts per million for ozone in 2025.
The monitoring station at Alton Horace Mann Elementary School recorded an annual average of 8.7 Micrograms/cubic meter (LC) for fine particles (PM2.5) in 2025.
The monitoring station at Arnold West recorded an annual average of 10.9 Parts per billion for nitrogen dioxide in 2025.
The radon data for Cahokia Heights covers St. Clair County. EPA places this area in Zone 2, with a predicted average indoor radon screening level of 2 to 4 picocuries per liter.
This city report shows 2 Superfund sites: Sauget Area 1; Sauget Area 2.
This city report shows 3 brownfield sites: Former Parks College; Proposed Lakewood Place Hotel Site; Proposed Rebar Facility.
View on EPA ECHOView on EPA ECHOView on EPA ECHOView on EPA ECHOView on EPA ECHO
The county data for Cahokia Heights reports a life expectancy of 74.7 years in St. Clair County, Illinois.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Cahokia Heights reports 11,047 years of life lost to deaths before age 75 per 100,000 residents in St. Clair County, Illinois. This measure adds up the years lost to early deaths and adjusts for differences in population age.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Cahokia Heights lists fine-particle pollution (PM2.5) at 9.2 micrograms per cubic meter in St. Clair County, Illinois.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
Federal pipeline records list an incident involving Buckeye Partners, LP near Cahokia Heights on Nov 25, 2012. The reported release was a liquid petroleum product.
Federal pipeline records list an incident involving Explorer Pipeline Co near Cahokia Heights on Oct 18, 2018. The reported release was a liquid petroleum product.
Federal pipeline records list an incident involving Explorer Pipeline Co near Cahokia Heights on Jul 26, 2022. The reported release was a liquid petroleum product.