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Montgomery County, Tennessee: environmental and disease records

Cancer mortality in Montgomery County is 170.1 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Lung & bronchus deaths at 1.5 times the U.S. rate. Federal databases place 795 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (520), Rail grade crossing (70), Gas station (mapped facility) (53). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 30 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: 36.4765, -87.3697.

How this county ranks in Tennessee

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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 Montgomery County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Lung & bronchus	Deaths	46.4	30.2	1.54xSignificant	42 to 51.1	2020-2024
Melanoma of the skin	Deaths	2.7	2	1.35x	1.7 to 4.2	2020-2024
Lung & bronchus	New cases	66.3	51.8	1.28xSignificant	60.9 to 71.9	2019-2023
Kidney & renal pelvis	Deaths	4.3	3.4	1.26x	3 to 5.9	2020-2024
All cancer	Deaths	170.1	143.2	1.19xSignificant	161.5 to 179.1	2020-2024
Pancreas	Deaths	13.1	11.3	1.16x	10.8 to 15.8	2020-2024
Kidney & renal pelvis	New cases	20.7	17.9	1.16x	17.8 to 23.8	2019-2023
Esophagus	New cases	5.3	4.6	1.15x	3.9 to 7	2019-2023
Leukemia	Deaths	6.4	5.7	1.12x	4.7 to 8.4	2020-2024
Bladder	New cases	20.8	18.7	1.11x	17.7 to 24.1	2019-2023
Stomach	Deaths	2.9	2.7	1.07x	1.9 to 4.3	2020-2024
Esophagus	Deaths	3.9	3.7	1.05x	2.7 to 5.4	2020-2024
Liver & bile duct	Deaths	6.9	6.6	1.05x	5.3 to 8.9	2020-2024
Pancreas	New cases	14.5	13.9	1.04x	12 to 17.2	2019-2023
Bladder	Deaths	4.2	4.1	1.02x	2.8 to 5.9	2020-2024
Liver & bile duct	New cases	8.8	8.7	1.01x	7 to 10.9	2019-2023
Brain & nervous system	Deaths	4.4	4.4	1x	3.2 to 5.9	2020-2024
Non-Hodgkin lymphoma	Deaths	4.7	4.8	0.98x	3.3 to 6.4	2020-2024
All cancer	New cases	440.9	453.4	0.97x	427.3 to 454.8	2019-2023
Stomach	New cases	6.3	6.6	0.95x	4.7 to 8.2	2019-2023
Brain & nervous system	New cases	5.7	6.2	0.92x	4.3 to 7.4	2019-2023
Childhood cancer (under 15)	New cases	14	16.4	0.85x	9.9 to 19.4	2019-2023
Non-Hodgkin lymphoma	New cases	15.1	18.5	0.82x	12.6 to 17.9	2019-2023
Leukemia	New cases	11	14.5	0.76x	8.9 to 13.4	2019-2023
Thyroid	New cases	9.7	13	0.75x	7.9 to 11.9	2019-2023
Melanoma of the skin	New cases	13.5	23.8	0.57x	11.1 to 16.1	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 Montgomery County
Measure	County	U.S. median	Difference	Unit
Premature death	10,082	9,842.6	+2%	years of life lost before age 75 per 100,000
Life expectancy	74	75.3	-2%	years
Child mortality	63.5	59.8	+6%	deaths under age 18 per 100,000
Infant mortality	6.3	6.2	+2%	deaths under age 1 per 1,000 live births
Injury deaths	100.2	96.9	+3%	deaths per 100,000
Drug overdose deaths	42.5	28.6	+49%	deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 30 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde23.56 per million
Carbon Tetrachloride2.93 per million
Acetaldehyde2.48 per million
Naphthalene1.06 per million

EPA Air Quality Index 2025

Monitored on 358 days: 300 good, 1 unhealthy for sensitive groups or worse. Median AQI 32, peak 130.

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit520
Rail grade crossing70
Gas station (mapped facility)53
Air permit holder (minor source)42
Auto repair or body shop (mapped facility)25
Small hazardous waste generator16
Toxic chemical release facility (TRI)15
TRI reporting facility11
Major air pollution source9
Large hazardous waste generator8
Public airport5
Large greenhouse gas emitter5
Commercial airport2
Brownfield property2
Dry cleaner (mapped facility)2
Heliport2
Landfill (mapped facility)2
Scrapyard (mapped facility)2
Wastewater plant (mapped facility)2
EPA air quality monitor1
Biomass 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.

Nyrstar Clarksville Inc, Clarksville
TRI reporting facility. Penalties $485,400.
EPA FRS registry ID 110056972227 (U.S. EPA ECHO) Agency record
Severity 10
Nyrstar Clarksville Inc, Clarksville
Toxic chemical release facility (TRI). Chemicals: Zinc compounds, Lead And Lead Compounds, Copper And Copper Compounds, Cadmium And Cadmium Compounds and 4 more. Reports carcinogens. 71,737,730 lbs released over 5 years.
TRI facility ID 37040SVGZN1800Z (U.S. EPA Toxics Release Inventory)
Severity 10
Lg Electronics Usa Inc., Clarksville
Toxic chemical release facility (TRI). Chemicals: Toluene, Certain glycol ethers, Methyl isobutyl ketone, Xylene (mixed isomers) and 1 more. Reports carcinogens. 44,890 lbs released over 5 years.
TRI facility ID 3704WLGLCT11LIF (U.S. EPA Toxics Release Inventory)
Severity 8.1
Purity Zinc Metals Llc, Clarksville
Toxic chemical release facility (TRI). Chemicals: Zinc (fume or dust), Lead. Reports carcinogens. 29,318 lbs released over 5 years.
TRI facility ID 37040NRTHM480AR (U.S. EPA Toxics Release Inventory)
Severity 7.9
Nyrstar Clarksville Inc, Clarksville
Major air pollution source. Penalties $485,400.
EPA FRS registry ID 110056972227 (U.S. EPA ECHO) Agency record
Severity 7.3
Aludyne-Clarksville, Clarksville
Toxic chemical release facility (TRI). Chemicals: Zinc (fume or dust), Manganese, Aluminum (fume or dust), Copper and 1 more. Reports carcinogens. 2,843 lbs released over 5 years.
TRI facility ID 37043SPXCN901AL (U.S. EPA Toxics Release Inventory)
Severity 7.2
Everzinc Usa Clarksville, Clarksville
Toxic chemical release facility (TRI). Chemicals: Zinc compounds, Lead And Lead Compounds, Lead compounds, Copper compounds and 1 more. 160,951 lbs released over 5 years.
TRI facility ID 37040MDWST480IN (U.S. EPA Toxics Release Inventory)
Severity 7
Nyrstar Clarksville Inc, Clarksville
Large hazardous waste generator. Penalties $485,400.
EPA FRS registry ID 110056972227 (U.S. EPA ECHO) Agency record
Severity 6.8
Nyrstar Clarksville Inc, Clarksville
NPDES wastewater discharge permit. Penalties $485,400.
EPA FRS registry ID 110056972227 (U.S. EPA ECHO) Agency record
Severity 6.8
Hankook & Company Es America Corp., Clarksville
Large hazardous waste generator. Penalties $506,625.
EPA FRS registry ID 110070801532 (U.S. EPA ECHO) Agency record
Severity 6.8
Florim Usa Inc, Clarksville
TRI reporting facility. Penalties $21,237.
EPA FRS registry ID 110000863584 (U.S. EPA ECHO) Agency record
Severity 6.7
Bridgestone Metalpha Usa Inc, Clarksville
TRI reporting facility.
EPA FRS registry ID 110000369896 (U.S. EPA ECHO) Agency record
Severity 6.6
Bridgestone Metalpha Usa Inc, Clarksville
Toxic chemical release facility (TRI). Chemicals: Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Zinc compounds, Copper compounds, Copper And Copper Compounds. 41,900 lbs released over 5 years.
TRI facility ID 37040BRDGS1200I (U.S. EPA Toxics Release Inventory)
Severity 6.5
Hankook & Co Es America Corp, Clarksville
Toxic chemical release facility (TRI). Chemicals: Lead, Antimony, Arsenic. Reports carcinogens. 419 lbs released over 5 years.
TRI facility ID 3704WHNKKT1325I (U.S. EPA Toxics Release Inventory)
Severity 6.5
Trane, Clarksville
Toxic chemical release facility (TRI). Chemicals: Manganese, Copper, Chromium, Nickel and 3 more. Reports carcinogens. 145 lbs released over 5 years.
TRI facility ID 37041TRNCMHIGHW (U.S. EPA Toxics Release Inventory)
Severity 6.2
Midwest Zinc- Clarksville Facility, Clarksville
TRI reporting facility.
EPA FRS registry ID 110008056762 (U.S. EPA ECHO) Agency record
Severity 6.1
Florim Usa Inc, Clarksville
Toxic chemical release facility (TRI). Chemicals: Hydrogen fluoride, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Zinc compounds. 9,533 lbs released over 5 years.
TRI facility ID 37040FLRMS3INTE (U.S. EPA Toxics Release Inventory)
Severity 6.1
Clarksville Gas And Water Dba Clarksville Wastewater Treatment Plant, Clarksville
NPDES wastewater discharge permit.
EPA FRS registry ID 110000726251 (U.S. EPA ECHO) Agency record
Severity 6
Hankook Tire Manufacturing Tennessee, Lp, Clarksville
Major air pollution source. Penalties $60,750.
EPA FRS registry ID 110059713733 (U.S. EPA ECHO) Agency record
Severity 6
American Snuff Co Llc, Clarksville
Toxic chemical release facility (TRI). Chemicals: Nicotine and salts. 4,256 lbs released over 5 years.
TRI facility ID 3704WMRCNS4483G (U.S. EPA Toxics Release Inventory)
Severity 5.8
Purity Zinc Metals, Llc, Clarksville
TRI reporting facility.
EPA FRS registry ID 110015783339 (U.S. EPA ECHO) Agency record
Severity 5.7
Hankook Tire Manufacturing Tennessee, Lp, Clarksville
NPDES wastewater discharge permit. Penalties $60,750.
EPA FRS registry ID 110059713733 (U.S. EPA ECHO) Agency record
Severity 5.5
American Snuff Co Llc, Clarksville
TRI reporting facility.
EPA FRS registry ID 110043670514 (U.S. EPA ECHO) Agency record
Severity 5.4
Hq 101st Airborne Division & Ft. Campbell, Clarksville
Major air pollution source.
EPA FRS registry ID 110063989625 (U.S. EPA ECHO) Agency record
Severity 5.3
Hendrickson International - Tr Ailer Suspension Systems, Clarksville
TRI reporting facility.
EPA FRS registry ID 110002105837 (U.S. EPA ECHO) Agency record
Severity 5.1

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 Montgomery County

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