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Review government records associated with Maryland Heights, Missouri.
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Preparing Maryland 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 Maryland Heights, MO from EPA SDWIS.
Mo American St Louis St Charles Counties
PFAS detected below the official threshold used by this report.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 1,111,000 people
Indian Hills Utilities Operating Company
No active drinking-water issues detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 1,600 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 Jun 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 Maryland 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.
Creve Coeur 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.
Violation records
Last inspected: Dec 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. Louis County
Assessment year: 2020
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 modeled source groups
Data from EPA AirToxScreen
EPA designations apply to a specific pollutant and federal air quality standard (NAAQS). EPA can issue a clean-data determination while a formal designation remains in effect.
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-St. Charles-Farmington
Ozone · 8-Hour Ozone (2008 Standard)
Classification: Marginal
Original designation: Jul 2012
Current design value: 0.07 ppm (2023-2025)
1997 Primary Annual PM2.5 Designations
St. Louis
EPA revoked the 1997 primary annual PM2.5 standard in this redesignated area.
Original designation: Apr 2005
Open data source: EPA final primary annual revocation ruleOpen data source: EPA designation statusData from EPA Green Book
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
29-183-9004 — Augusta, Missouri
Annual mean: 3.3 Parts per billion
Observation year: 2025
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
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
Last inspected: Dec 2025
Data from EPA ECHO
TRI releases are self-reported annual totals (calendar year 2024). Hover fugitive or stack for definitions.
Air Products
Reported: 2024
Beltservice Corp
Reported: 2024
Buckeye International Inc.
Reported: 2024
Reviewed: source query run Nov 2026
Reviewed: source query run Nov 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
Release reports
Reported: Dec 2021
Data from EPA UST Finder
Reviewed: reporting year 2024
Formerly Used Defense Sites are properties previously owned by, leased to, or otherwise possessed by the United States and under the jurisdiction of the Secretary of Defense. The FUDS program addresses environmental restoration at these properties.
Open data source: USACE FUDSSites 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.
More MSHA records matched the search than this preview shows.
Recently updated active/intermittent sites (1)
Data from MSHA
St. Louis County, MO
EPA Radon Zone Map (June 2024 release)
St. Louis 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.
Minimal flood hazard — outside the 1% and 0.2% annual chance floodplains.
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.
Reviewed: 2000-present
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
St. Louis County, MissouriPop. 990,414
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 | 9,071 | 9,478 | 7,972 |
| Poor or Fair Health | 14.6% | 16.4% | 14.2% |
| Poor Physical Health Days | 3.3 | 3.7 | 3.3 |
| Poor Mental Health Days | 5.1 | 5.2 | 4.8 |
| Adult Smoking | 16.2% | 18.1% | 15.0% |
| Adult Obesity | 34.1% | 37.6% | 34.0% |
| Air Pollution - Particulate Matter | 9.2 | 7.6 | 7.3 |
| Drinking water violation indicator | No | N/A | N/A |
| Diabetes Prevalence | 9.4% | 9.9% | 9.6% |
| Life Expectancy | 76.8 | 75.8 | 77.6 |
EPA testing found PFAS in water samples from Mo American St Louis St Charles Counties. Results dated Jun 17, 2024 include PFBA at 0.005 to 0.0051 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 Mo American St Louis St Charles Counties.
The EPA drinking water records available here list no violations for Indian Hills Utilities Operating Company.
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 Maryland Heights.
The monitoring station at 29-183-9004, Augusta, Missouri recorded an annual average of 3.3 Parts per billion for sulfur dioxide in 2025.
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 radon data for Maryland Heights covers St. Louis County. EPA places this area in Zone 2, with a predicted average indoor radon screening level of 2 to 4 picocuries per liter.
No Superfund or brownfield sites were returned for this city report.
The county data for Maryland Heights reports a life expectancy of 76.8 years in St. Louis County, Missouri.
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 Maryland Heights reports 9,071 years of life lost to deaths before age 75 per 100,000 residents in St. Louis County, Missouri. 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 Maryland Heights lists fine-particle pollution (PM2.5) at 9.2 micrograms per cubic meter in St. Louis County, Missouri.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.