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St. Charles County, Missouri: environmental and disease records

Cancer mortality in St. Charles County is 138.5 deaths per 100,000 people per year against a U.S. rate of 143.2. The strongest disease signals are Esophagus deaths at 1.2 times the U.S. rate. Federal databases place 1,364 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (787), Air permit holder (minor source) (148), Gas station (mapped facility) (92). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 40 in a million, driven mainly by formaldehyde.

Rates are age-adjusted per 100,000 people. A cancer signal is marked significant when the lower bound of its 95 percent confidence interval is above the U.S. rate. Facility counts use active federal records located inside the county boundary. Approximate county center: 38.75, -90.7282.

How this county ranks in Missouri

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Cancer deaths and new cases versus the United States

Source: NCI and CDC State Cancer Profiles, both sexes, all ages. Sorted by the ratio of the county rate to the U.S. rate.

Cancer rates for St. Charles County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Melanoma of the skin	Deaths	2.5	2	1.25x	1.9 to 3.2	2020-2024
Esophagus	Deaths	4.6	3.7	1.24xSignificant	3.9 to 5.6	2020-2024
Kidney & renal pelvis	Deaths	4.1	3.4	1.21x	3.4 to 5	2020-2024
Brain & nervous system	Deaths	5.3	4.4	1.2x	4.4 to 6.3	2020-2024
Esophagus	New cases	5.4	4.6	1.17x	4.6 to 6.4	2019-2023
Kidney & renal pelvis	New cases	20.7	17.9	1.16xSignificant	18.9 to 22.6	2019-2023
Brain & nervous system	New cases	7.1	6.2	1.15x	6 to 8.3	2019-2023
Leukemia	New cases	16.6	14.5	1.14xSignificant	15 to 18.3	2019-2023
Melanoma of the skin	New cases	26.6	23.8	1.12xSignificant	24.6 to 28.8	2019-2023
Lung & bronchus	New cases	57.2	51.8	1.1xSignificant	54.3 to 60.2	2019-2023
Lung & bronchus	Deaths	32.2	30.2	1.07x	30.1 to 34.5	2020-2024
Non-Hodgkin lymphoma	New cases	19.2	18.5	1.04x	17.5 to 21	2019-2023
Leukemia	Deaths	5.8	5.7	1.02x	4.9 to 6.8	2020-2024
All cancer	New cases	456.9	453.4	1.01x	448.4 to 465.5	2019-2023
Non-Hodgkin lymphoma	Deaths	4.7	4.8	0.98x	3.9 to 5.7	2020-2024
All cancer	Deaths	138.5	143.2	0.97x	134 to 143.2	2020-2024
Pancreas	New cases	13.4	13.9	0.96x	12 to 14.9	2019-2023
Pancreas	Deaths	10.7	11.3	0.95x	9.5 to 12.1	2020-2024
Thyroid	New cases	11.6	13	0.89x	10.1 to 13.1	2019-2023
Bladder	New cases	16.3	18.7	0.87x	14.7 to 18	2019-2023
Childhood cancer (under 15)	New cases	14.2	16.4	0.87x	10.6 to 18.6	2019-2023
Stomach	New cases	5.7	6.6	0.86x	4.8 to 6.8	2019-2023
Bladder	Deaths	3.5	4.1	0.85x	2.8 to 4.4	2020-2024
Liver & bile duct	New cases	6.9	8.7	0.79x	5.9 to 8	2019-2023
Liver & bile duct	Deaths	5.1	6.6	0.77x	4.2 to 6	2020-2024
Stomach	Deaths	1.6	2.7	0.59x	1.1 to 2.2	2020-2024

Mortality measures versus the U.S. county median

Source: County Health Rankings, built from CDC National Vital Statistics System death records. The comparison value is the median of all U.S. counties.

Mortality measures for St. Charles County
Measure	County	U.S. median	Difference	Unit
Premature death	6,249.5	9,842.6	-37%	years of life lost before age 75 per 100,000
Life expectancy	79.1	75.3	+5%	years
Child mortality	38.2	59.8	-36%	deaths under age 18 per 100,000
Infant mortality	4.8	6.2	-22%	deaths under age 1 per 1,000 live births
Injury deaths	83.2	96.9	-14%	deaths per 100,000
Drug overdose deaths	27	28.6	-6%	deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 40 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde22.4 per million
Carbon Tetrachloride2.95 per million
Naphthalene2.59 per million
Acetaldehyde2.27 per million

EPA Air Quality Index

No EPA air quality monitor reports daily AQI for this county.

Regulated facilities, sites and hazards by type

1,364 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

NPDES wastewater discharge permit787
Air permit holder (minor source)148
Gas station (mapped facility)92
Small hazardous waste generator79
Rail grade crossing72
Industrial wastewater discharge62
Auto repair or body shop (mapped facility)28
Large hazardous waste generator17
Toxic chemical release facility (TRI)17
TRI reporting facility15
Hazardous waste transporter8
Major air pollution source6
Heliport6
EPA air quality monitor4
Dry cleaner (mapped facility)4
Wastewater plant (mapped facility)4
Public airport3
Scrapyard (mapped facility)3
Brownfield property2
Superfund (NPL) site2
Commercial airport1
Large greenhouse gas emitter1
Landfill (mapped facility)1
Coal power plant1
Solar power plant1

Highest-severity records

The 25 records with the highest Envyrofax severity in the county, with the agency identifier to cite in a records request.

Weldon Spring Quarry/Plant/Pits (USDOE/Army), St. Charles County
Superfund (NPL) site. Hazard Ranking System score 58.6. NPL Site.
EPA site ID MO3210090004 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Weldon Spring Former Army Ordnance Works, St. Charles County
Superfund (NPL) site. Hazard Ranking System score 30.3. NPL Site.
EPA site ID MO5210021288 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Ameren Missouri Sioux Energy Center, West Alton
Toxic chemical release facility (TRI). Chemicals: Barium And Barium Compounds, Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Zinc compounds and 4 more. Reports carcinogens. 3,648,460 lbs released over 5 years.
TRI facility ID 63386SXPWR8501N (U.S. EPA Toxics Release Inventory)
Severity 9.5
General Motors Wentzville Assembly, Wentzville
Toxic chemical release facility (TRI). Chemicals: Certain glycol ethers, 1,2,4-Trimethylbenzene, Xylene (mixed isomers), n-Butyl alcohol and 4 more. Reports carcinogens. 2,038,878 lbs released over 5 years.
TRI facility ID 63385BCGRP1500E (U.S. EPA Toxics Release Inventory)
Severity 9.3
Memc Electronic Materials Inc, O Fallon
TRI reporting facility.
EPA FRS registry ID 110000442101 (U.S. EPA ECHO) Agency record
Severity 8.5
Superior Home Products Inc, Wentzville
Toxic chemical release facility (TRI). Chemicals: Styrene. Reports carcinogens. 86,602 lbs released over 5 years.
TRI facility ID 63385SPRRH211ED (U.S. EPA Toxics Release Inventory)
Severity 8.3
General Motors Llc Wentzville Assembly, Wentzville
TRI reporting facility. Penalties $3,750.
EPA FRS registry ID 110018010365 (U.S. EPA ECHO) Agency record
Severity 8.1
Zoltek Corp, Saint Peters
Toxic chemical release facility (TRI). Chemicals: Styrene. Reports carcinogens. 36,600 lbs released over 5 years.
TRI facility ID 6337WCNTNN27GUE (U.S. EPA Toxics Release Inventory)
Severity 8
Ameren Missouri Sioux Energy Center, West Alton
TRI reporting facility.
EPA FRS registry ID 110064610292 (U.S. EPA ECHO) Agency record
Severity 7.7
Modineer Plant 7, Saint Peters
Toxic chemical release facility (TRI). Chemicals: Zinc compounds, Aluminum (fume or dust), Chromium, Manganese and 1 more. Reports carcinogens. 5,060 lbs released over 5 years.
TRI facility ID 63376WNWRG17CER (U.S. EPA Toxics Release Inventory)
Severity 7.3
Superior Home Products Inc, Wentzville
TRI reporting facility. Penalties $3,000.
EPA FRS registry ID 110000442192 (U.S. EPA ECHO) Agency record
Severity 7.2
Sioux, West Alton
Coal power plant.
Record ID 2107 (U.S. Energy Information Administration)
Severity 7
Woodbridge Corp Saint Peters, Saint Peters
Toxic chemical release facility (TRI). Chemicals: Diethanolamine, Toluene diisocyanate (mixed isomers), Diisocyanates. Reports carcinogens. 614 lbs released over 5 years.
TRI facility ID 63376WDBRD11CER (U.S. EPA Toxics Release Inventory)
Severity 6.6
O'Fallon Casting, O Fallon
Toxic chemical release facility (TRI). Chemicals: Ammonia, Nitric acid, Hydrogen fluoride, Nitrate compounds (water dissociable; reportable only when in aqueous solution) and 1 more. 11,922 lbs released over 5 years.
TRI facility ID 63366HTCHNCANNO (U.S. EPA Toxics Release Inventory)
Severity 6.1
Memc Electronic Materials Inc, O Fallon
NPDES wastewater discharge permit.
EPA FRS registry ID 110000442101 (U.S. EPA ECHO) Agency record
Severity 6
Memc Llc, Saint Peters
Toxic chemical release facility (TRI). Chemicals: Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ozone, Hydrogen fluoride. 7,986 lbs released over 5 years.
TRI facility ID 63376MNSNT501PE (U.S. EPA Toxics Release Inventory)
Severity 6
Modineer Plant 7, Saint Peters
TRI reporting facility.
EPA FRS registry ID 110001450625 (U.S. EPA ECHO) Agency record
Severity 5.7
Zoltek Corporation, Saint Peters
TRI reporting facility.
EPA FRS registry ID 110003974209 (U.S. EPA ECHO) Agency record
Severity 5.6
Hitchiner Manufacturing Company, Ofallon
TRI reporting facility.
EPA FRS registry ID 110000497588 (U.S. EPA ECHO) Agency record
Severity 5.5
Rb Manufacturing Llc, St. Peters
Large hazardous waste generator.
EPA FRS registry ID 110000442129 (U.S. EPA ECHO) Agency record
Severity 5.5
Woodbridge Corporation - St. Peters, St. Peters
TRI reporting facility.
EPA FRS registry ID 110000442147 (U.S. EPA ECHO) Agency record
Severity 5.5
General Motors Llc Wentzville Assembly, Wentzville
Major air pollution source. Penalties $3,750.
EPA FRS registry ID 110018010365 (U.S. EPA ECHO) Agency record
Severity 5
Missouri Metals, Wentzville
TRI reporting facility.
EPA FRS registry ID 110071841008 (U.S. EPA ECHO) Agency record
Severity 5
Superior Home Products Inc, Wentzville
Major air pollution source. Penalties $3,000.
EPA FRS registry ID 110000442192 (U.S. EPA ECHO) Agency record
Severity 4.8
Pittsburgh Glass Works Llc, O Fallon
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens. 1 lbs released over 5 years.
TRI facility ID 63366PPGND831LN (U.S. EPA Toxics Release Inventory)
Severity 4.7

Correctional facilities

Prisons, jails and corrections operations with an EPA facility record, and the drinking water and wastewater compliance attached to them.

No correctional facility with an EPA record is located in this county.

Discovery / public records

Records to request for St. Charles County

Missouri state cancer registry
Cancer incidence counts by census tract or ZIP code, by cancer type and year (de-identified). Any cancer cluster inquiries or investigations in St. Charles County, and their findings.
Missouri vital statistics office
Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.
Missouri health department, environmental epidemiology
Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.
Missouri environmental agency and the U.S. EPA regional office
Compliance history, inspection reports, notices of violation, penalties and enforcement actions for each facility above, cited by EPA FRS registry ID.
Missouri drinking water program
Violation notices, sampling results and sanitary surveys for the public water systems serving the county, including any system serving a correctional facility.
Department of corrections or county sheriff
Water testing, grievances and environmental health inspections for the correctional facilities listed above.

Each Envyrofax address report includes a printable records request worksheet with the custodian and the exact request wording per finding.

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