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Marshall County, West Virginia: environmental and disease records

Cancer mortality in Marshall County is 169.8 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Esophagus deaths at 2.1 times the U.S. rate and Lung & bronchus deaths at 1.5 times the U.S. rate. Federal databases place 366 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (169), Air permit holder (minor source) (61), Rail grade crossing (30). One correctional facility operates in the county. 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: 39.8789, -80.6558.

How this county ranks in West Virginia

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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 Marshall County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Esophagus	Deaths	7.8	3.7	2.11xSignificant	4.7 to 12.7	2020-2024
Esophagus	New cases	7.8	4.6	1.7xSignificant	4.7 to 12.8	2019-2023
Lung & bronchus	Deaths	46.6	30.2	1.54xSignificant	38.4 to 56.3	2020-2024
Bladder	Deaths	6.1	4.1	1.49x	3.4 to 10.6	2020-2024
Lung & bronchus	New cases	74.9	51.8	1.45xSignificant	64.3 to 87	2019-2023
Bladder	New cases	25.9	18.7	1.39xSignificant	19.9 to 33.6	2019-2023
Thyroid	New cases	17.7	13	1.36x	11.4 to 26.2	2019-2023
Kidney & renal pelvis	New cases	24.2	17.9	1.35x	17.6 to 32.5	2019-2023
Non-Hodgkin lymphoma	New cases	22.2	18.5	1.2x	16.4 to 29.7	2019-2023
All cancer	Deaths	169.8	143.2	1.19xSignificant	153.2 to 187.9	2020-2024
All cancer	New cases	509.7	453.4	1.12xSignificant	479.3 to 541.7	2019-2023
Melanoma of the skin	New cases	25.5	23.8	1.07x	18.7 to 34.1	2019-2023
Pancreas	New cases	12.5	13.9	0.9x	8.5 to 18.2	2019-2023
Pancreas	Deaths	9.2	11.3	0.81x	5.7 to 14.4	2020-2024
Leukemia	New cases	11.7	14.5	0.81x	7.5 to 17.8	2019-2023

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 Marshall County
Measure	County	U.S. median	Difference	Unit
Premature death	10,486.5	9,842.6	+7%	years of life lost before age 75 per 100,000
Life expectancy	74.3	75.3	-1%	years
Child mortality	64.2	59.8	+7%	deaths under age 18 per 100,000
Infant mortality	n/a	6.2	n/a	deaths under age 1 per 1,000 live births
Injury deaths	105.8	96.9	+9%	deaths per 100,000
Drug overdose deaths	41.1	28.6	+44%	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.

Formaldehyde20.49 per million
Benzene6.76 per million
Carbon Tetrachloride2.91 per million
Acetaldehyde1.88 per million

EPA Air Quality Index 2025

Monitored on 284 days: 181 good, 0 unhealthy for sensitive groups or worse. Median AQI 42, peak 81.

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit169
Air permit holder (minor source)61
Rail grade crossing30
Brownfield property21
Major air pollution source14
Toxic chemical release facility (TRI)13
TRI reporting facility11
Large greenhouse gas emitter10
Wastewater plant (mapped facility)9
Gas station (mapped facility)7
Small hazardous waste generator7
Large hazardous waste generator6
EPA air quality monitor1
Public airport1
Commercial airport1
Correctional facility (prison or jail)1
Landfill (mapped facility)1
Coal power plant1
Gas power plant1
Superfund (NPL) site1

Highest-severity records

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

Hanlin-Allied-Olin, Moundsville
Superfund (NPL) site. Hazard Ranking System score 54. NPL Site.
EPA site ID WVD024185373 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
American Electric Power Kammer/Mitchell Plant, Moundsville
Toxic chemical release facility (TRI). Chemicals: 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), Vanadium compounds, Copper compounds and 4 more. Reports carcinogens. Reports PFAS. 3,979,086 lbs released over 5 years.
TRI facility ID 26041KMMRPRTE2X (U.S. EPA Toxics Release Inventory)
Severity 10
Westlake Natrium Llc, Westlake Natrium, Proctor
TRI reporting facility. Penalties $126,122.
EPA FRS registry ID 110000875367 (U.S. EPA ECHO) Agency record
Severity 9.9
Covestro, Proctor
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Diisocyanates, Xylene (mixed isomers), Ethylene glycol and 4 more. Reports carcinogens. 1,022,477 lbs released over 5 years.
TRI facility ID 26155MBYCRSTATE (U.S. EPA Toxics Release Inventory)
Severity 9.1
Consol Pa Coal Co - Mcelroy Mine, Cameron
TRI reporting facility.
EPA FRS registry ID 110054621012 (U.S. EPA ECHO) Agency record
Severity 8.9
Westlake Natrium Llc, Proctor
Toxic chemical release facility (TRI). Chemicals: Ammonia, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Chlorine, Mercury And Mercury Compounds and 4 more. Reports carcinogens. 317,944 lbs released over 5 years.
TRI facility ID 26155PPGNDSTATE (U.S. EPA Toxics Release Inventory)
Severity 8.7
Ohio County Coal Resources Inc., Dallas
Toxic chemical release facility (TRI). Chemicals: Lead, Mercury. Reports carcinogens. 259,404 lbs released over 5 years.
TRI facility ID 2603WTHHCNRD1XX (U.S. EPA Toxics Release Inventory)
Severity 8.7
Marshall County Coal Resources Inc., Moundsville
Toxic chemical release facility (TRI). Chemicals: Lead, Mercury. Reports carcinogens. 197,505 lbs released over 5 years.
TRI facility ID 2604WTHMRSSR2XX (U.S. EPA Toxics Release Inventory)
Severity 8.6
Clearfork Processing Plant, Glen Easton
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Cyclohexane, Benzene, Toluene and 2 more. Reports carcinogens. 70,174 lbs released over 5 years.
TRI facility ID 2603WCLRFR225NE (U.S. EPA Toxics Release Inventory)
Severity 8.2
Williams Ohio Valley Midstream - Moundsville Fractionation P, Moundsville
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Cyclohexane, Xylene (mixed isomers), Benzene and 1 more. Reports carcinogens. 39,127 lbs released over 5 years.
TRI facility ID 2604WWLLMS2CAIM (U.S. EPA Toxics Release Inventory)
Severity 8
Elementis Speciaties Inc, Proctor
Toxic chemical release facility (TRI). Chemicals: Toluene, Ammonia, Ethyl acrylate, Certain glycol ethers and 4 more. Reports carcinogens. 30,765 lbs released over 5 years.
TRI facility ID 2611WLMNTSRUTE2 (U.S. EPA Toxics Release Inventory)
Severity 7.9
Oak Grove Plant, Moundsville
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Ethylbenzene, Cyclohexane. Reports carcinogens. 12,780 lbs released over 5 years.
TRI facility ID 2604WKGRVP5258F (U.S. EPA Toxics Release Inventory)
Severity 7.7
Mitchell (Wv), Captina
Coal power plant.
Record ID 3948 (U.S. Energy Information Administration)
Severity 7.6
Natrium Gas Plant, Proctor
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Benzene, Cyclohexane. Reports carcinogens. 7,524 lbs released over 5 years.
TRI facility ID 2605WNTRMG14736 (U.S. EPA Toxics Release Inventory)
Severity 7.5
Westlake Natrium Llc, Westlake Natrium, Proctor
Major air pollution source. Penalties $126,122.
EPA FRS registry ID 110000875367 (U.S. EPA ECHO) Agency record
Severity 7.3
Williams Ohio Valley Midstream Llc, Hunter-Pethel Statio, Moundsville
TRI reporting facility. Penalties $2,029,500.
EPA FRS registry ID 110054890472 (U.S. EPA ECHO) Agency record
Severity 6.9
Westlake Natrium Llc, Westlake Natrium, Proctor
Large hazardous waste generator. Penalties $126,122.
EPA FRS registry ID 110000875367 (U.S. EPA ECHO) Agency record
Severity 6.8
Westlake Natrium Llc, Westlake Natrium, Proctor
NPDES wastewater discharge permit. Penalties $126,122.
EPA FRS registry ID 110000875367 (U.S. EPA ECHO) Agency record
Severity 6.8
Mitchell Plant, Cresap
TRI reporting facility.
EPA FRS registry ID 110013725077 (U.S. EPA ECHO) Agency record
Severity 6.7
Williams Ohio Valley Midstream - Fort Beeler Gas Processing, Cameron
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Xylene (mixed isomers), Methanol. 18,370 lbs released over 5 years.
TRI facility ID 2603WWLLMS12681 (U.S. EPA Toxics Release Inventory)
Severity 6.3
Westlake Natrium Llc, Westlake Natrium, Proctor
Large greenhouse gas emitter. Penalties $126,122.
EPA FRS registry ID 110000875367 (U.S. EPA ECHO) Agency record
Severity 6.3
Elementis Specialties, Inc., New Martinsville, Proctor
TRI reporting facility.
EPA FRS registry ID 110064455888 (U.S. EPA ECHO) Agency record
Severity 5.8
Williams Ohio Valley Midstream - Fort Beeler Gas Processing Plant, Cameron
TRI reporting facility.
EPA FRS registry ID 110070061626 (U.S. EPA ECHO) Agency record
Severity 5.8
Certainteed Gypsum, Proctor
TRI reporting facility.
EPA FRS registry ID 110038917367 (U.S. EPA ECHO) Agency record
Severity 5.8
, Moundsville
EPA air quality monitor.
Record ID 540511002 (U.S. EPA AirData)
Severity 5.8

Correctional facilities

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

West Virginia Correctional Industries, Moundsville
EPA FRS registry ID
110070643703
Wastewater permit
None on record
EPA detailed facility report

Discovery / public records

Records to request for Marshall County

West Virginia 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 Marshall County, and their findings.
West Virginia vital statistics office
Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.
West Virginia health department, environmental epidemiology
Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.
West Virginia 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.
West Virginia 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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