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Review government records associated with Union, Missouri.
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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 Union, MO from EPA SDWIS.
Union Pws
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 12,348 people
Data from EPA SDWIS
Reviewed: source records as of Q1 2026
EPA UCMR5 — No PFAS detection records shown for these water systems
Open data source: EPA UCMR5DoD PFAS — No investigation records shown for this report
Open data source: DoD PFASEPA ATTAINS records identify assessed water bodies that do not meet water-quality standards for designated uses.
Birch Creek-Bourbuse River
Reported: Nov 2026
Health-relevant causes: Mercury, Pathogens
Affected uses: Fishconsumption, 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
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.
Franklin 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.
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)
Historical designations under the revoked 1997 ozone standard
These records describe historical designations. EPA revoked the 1997 ozone standard on April 6, 2015.
St. Louis Area
Historical standard: 0.08 ppm (8-hour)
Historical designation: Maintenance · Subpart 2/Moderate
Original designation: Jun 2004
Open data source: EPA final revocation ruleContinuing requirements have not been verified for this area.
Data 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
Labadie, Southwest
Annual mean: 2.2 Parts per billion
EPA primary exceedance count: 1 (SO2 1-hour 2010)
Observation year: 2025
Northwest
Annual mean: 2.6 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
Data from EPA ECHO
Reviewed: source records as of 2024
Reviewed: source query run Nov 2026
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHO1 site with active cleanup or investigation status
18 East Main Street, Union
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
Release reports
Reported: Dec 2021
Data from EPA UST Finder
Reviewed: reporting year 2024
No MSHA mine or extraction site records shown for this report.
Franklin County, MO
EPA Radon Zone Map (June 2024 release)
Franklin 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.
Special Flood Hazard Area — 1% annual chance of flooding (100-year floodplain) with base flood elevation.
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.
Franklin County, MissouriPop. 105,879
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 | 9,658 | 9,478 | 7,972 |
| Poor or Fair Health | 16.4% | 16.4% | 14.2% |
| Poor Physical Health Days | 3.9 | 3.7 | 3.3 |
| Poor Mental Health Days | 5.1 | 5.2 | 4.8 |
| Adult Smoking | 19.9% | 18.1% | 15.0% |
| Adult Obesity | 37.7% | 37.6% | 34.0% |
| Air Pollution - Particulate Matter | 8.0 | 7.6 | 7.3 |
| Drinking water violation indicator | Yes | N/A | N/A |
| Diabetes Prevalence | 9.5% | 9.9% | 9.6% |
| Life Expectancy | 75.5 | 75.8 | 77.6 |
This report does not have PFAS sample results for the candidate water systems in Union.
Check with the utility that serves your address for its testing results.
EPA drinking water records on this page list 2 violations for Union Pws.
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 Union.
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 Labadie, Southwest recorded an annual average of 2.2 Parts per billion for sulfur dioxide in 2025.
The monitoring station at Northwest recorded an annual average of 2.6 Parts per billion for sulfur dioxide in 2025.
The radon data for Union covers Franklin 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 sites were returned for this city report.
This city report shows 3 brownfield sites: Prairie Dell and Progress Parkway; Quality Chevrolet; Union Corporate Center.
EPA Superfund recordsView on EPA ECHOView on EPA ECHOView on EPA ECHO
The county data for Union reports a life expectancy of 75.5 years in Franklin 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 Union reports 9,658 years of life lost to deaths before age 75 per 100,000 residents in Franklin 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 Union lists fine-particle pollution (PM2.5) at 8.0 micrograms per cubic meter in Franklin County, Missouri.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.