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Williamson County, Tennessee: environmental and disease records

Cancer mortality in Williamson County is 123.1 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 781 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (556), Gas station (mapped facility) (72), Rail grade crossing (40). One correctional facility operates in the county. 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: 35.877, -86.9154.

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 Williamson County compared with the United States
CancerMeasureCounty rateU.S. rateTimes U.S.95% intervalYears
LeukemiaNew cases1914.51.31xSignificant16.7 to 21.52019-2023
Childhood cancer (under 15)New cases21.116.41.29x15.8 to 27.62019-2023
Melanoma of the skinNew cases27.723.81.16xSignificant25 to 30.62019-2023
Non-Hodgkin lymphomaDeaths5.54.81.15x4.3 to 6.92020-2024
Brain & nervous systemNew cases7.16.21.15x5.7 to 8.72019-2023
Brain & nervous systemDeaths54.41.14x3.9 to 6.32020-2024
LeukemiaDeaths6.35.71.11x5 to 7.92020-2024
Melanoma of the skinDeaths2.121.05x1.4 to 3.12020-2024
Non-Hodgkin lymphomaNew cases19.218.51.04x17 to 21.82019-2023
All cancerNew cases449.1453.40.99x438 to 460.52019-2023
ThyroidNew cases12.7130.98x10.8 to 14.92019-2023
Kidney & renal pelvisDeaths3.33.40.97x2.4 to 4.32020-2024
EsophagusDeaths3.43.70.92x2.5 to 4.52020-2024
PancreasDeaths10.311.30.91x8.7 to 12.22020-2024
Kidney & renal pelvisNew cases16.217.90.91x14.2 to 18.42019-2023
BladderNew cases16.918.70.9x14.8 to 19.22019-2023
PancreasNew cases12.513.90.9x10.7 to 14.62019-2023
BladderDeaths3.64.10.88x2.7 to 4.82020-2024
All cancerDeaths123.1143.20.86x117.3 to 129.22020-2024
EsophagusNew cases3.94.60.85x2.9 to 5.12019-2023
StomachDeaths2.22.70.81x1.5 to 3.22020-2024
StomachNew cases56.60.76x3.9 to 6.32019-2023
Liver & bile ductNew cases6.28.70.71x5 to 7.72019-2023
Liver & bile ductDeaths4.76.60.71x3.6 to 62020-2024
Lung & bronchusDeaths21.330.20.71x18.9 to 23.92020-2024
Lung & bronchusNew cases36.351.80.7x33.2 to 39.72019-2023

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 Williamson County
MeasureCountyU.S. medianDifferenceUnit
Premature death4,406.69,842.6-55%years of life lost before age 75 per 100,000
Life expectancy81.575.3+8%years
Child mortality28.959.8-52%deaths under age 18 per 100,000
Infant mortality36.2-51%deaths under age 1 per 1,000 live births
Injury deaths60.696.9-38%deaths per 100,000
Drug overdose deaths15.428.6-46%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.

  • Formaldehyde23.01 per million
  • Carbon Tetrachloride2.91 per million
  • Acetaldehyde2.39 per million
  • Naphthalene1.36 per million

EPA Air Quality Index 2025

Monitored on 243 days: 216 good, 0 unhealthy for sensitive groups or worse. Median AQI 40, peak 100.

Regulated facilities, sites and hazards by type

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

  • NPDES wastewater discharge permit556
  • Gas station (mapped facility)72
  • Rail grade crossing40
  • Air permit holder (minor source)38
  • Auto repair or body shop (mapped facility)25
  • Small hazardous waste generator12
  • Dry cleaner (mapped facility)11
  • Large hazardous waste generator6
  • Wastewater plant (mapped facility)6
  • TRI reporting facility5
  • Toxic chemical release facility (TRI)5
  • Major air pollution source1
  • EPA air quality monitor1
  • Correctional facility (prison or jail)1
  • Heliport1
  • Landfill (mapped facility)1

Highest-severity records

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

  1. Essex Solutions Usa Llc, Franklin

    Toxic chemical release facility (TRI). Chemicals: N-Methyl-2-pyrrolidone, Phenol, 1,2,4-Trimethylbenzene, Cresol (mixed isomers) and 4 more. Reports carcinogens. 274,813 lbs released over 5 years.

    TRI facility ID 37064SSXGR120SE (U.S. EPA Toxics Release Inventory)

    Severity 8.7

  2. Essex Furukawa Magnet Wire Usa Llc, Franklin

    TRI reporting facility. Penalties $41,550.

    EPA FRS registry ID 110000589872 (U.S. EPA ECHO) Agency record

    Severity 8.6

  3. Essex Furukawa Magnet Wire Usa Llc, Franklin

    Major air pollution source. Penalties $41,550.

    EPA FRS registry ID 110000589872 (U.S. EPA ECHO) Agency record

    Severity 6

  4. City Of Franklin Wastewater Treatment Plant, Franklin

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110000547418 (U.S. EPA ECHO) Agency record

    Severity 5.5

  5. Essex Furukawa Magnet Wire Usa Llc, Franklin

    Large hazardous waste generator. Penalties $41,550.

    EPA FRS registry ID 110000589872 (U.S. EPA ECHO) Agency record

    Severity 5.5

  6. Essex Furukawa Magnet Wire Usa Llc, Franklin

    NPDES wastewater discharge permit. Penalties $41,550.

    EPA FRS registry ID 110000589872 (U.S. EPA ECHO) Agency record

    Severity 5.5

  7. Pilot Travel Centers, Llc Dba Flying J Travel Plaza #720, Fairview

    NPDES wastewater discharge permit. Penalties $10,287.

    EPA FRS registry ID 110064643783 (U.S. EPA ECHO) Agency record

    Severity 5.5

  8. Apcom Inc., Franklin

    Large hazardous waste generator. Penalties $8,126.

    EPA FRS registry ID 110007399760 (U.S. EPA ECHO) Agency record

    Severity 4.8

  9. Foley Products Co - Franklin, Franklin

    Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens. 1 lbs released over 5 years.

    TRI facility ID 37064FRNKL213DW (U.S. EPA Toxics Release Inventory)

    Severity 4.7

  10. Georgia Masonry Supply Franklin, Franklin

    Toxic chemical release facility (TRI). Chemicals: Lead And Lead Compounds, Lead. Reports carcinogens.

    TRI facility ID 37064BNSLM422LE (U.S. EPA Toxics Release Inventory)

    Severity 4.5

  11. Apcom Inc, Franklin

    Toxic chemical release facility (TRI). Chemicals: Nickel, Zinc compounds, Copper. Reports carcinogens.

    TRI facility ID 37065PCMNCSOUTH (U.S. EPA Toxics Release Inventory)

    Severity 4.5

  12. Adams An Oldcastle Co-Franklin Tn, Franklin

    TRI reporting facility.

    EPA FRS registry ID 110015680477 (U.S. EPA ECHO) Agency record

    Severity 4

  13. Smyrna Ready Mix Concrete Llc - (Formerly Metro Ready Mix Concrete, Llc), Franklin

    TRI reporting facility.

    EPA FRS registry ID 110022810859 (U.S. EPA ECHO) Agency record

    Severity 4

  14. Foley Products Company - Franklin Plant, Franklin

    TRI reporting facility.

    EPA FRS registry ID 110043993079 (U.S. EPA ECHO) Agency record

    Severity 4

  15. Apcom Inc, Franklin

    TRI reporting facility.

    EPA FRS registry ID 110064203534 (U.S. EPA ECHO) Agency record

    Severity 4

  16. Lasko Products, Llc, Franklin

    Large hazardous waste generator.

    EPA FRS registry ID 110000765903 (U.S. EPA ECHO) Agency record

    Severity 3.8

  17. Fairview Stp, Fairview

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110006664065 (U.S. EPA ECHO) Agency record

    Severity 3.3

  18. Apcom Inc., Franklin

    NPDES wastewater discharge permit. Penalties $8,126.

    EPA FRS registry ID 110007399760 (U.S. EPA ECHO) Agency record

    Severity 3.3

  19. Williamson Medical Center, Franklin

    Large hazardous waste generator.

    EPA FRS registry ID 110043192559 (U.S. EPA ECHO) Agency record

    Severity 3.3

  20. Vanderbilt University Warren Center For Neuroscience Drug Discovery, Franklin

    Large hazardous waste generator.

    EPA FRS registry ID 110062917713 (U.S. EPA ECHO) Agency record

    Severity 3.3

  21. Usa Zama, Franklin

    Large hazardous waste generator.

    EPA FRS registry ID x6c4c71a6cbc869f8b71b42db5a2134ed (U.S. EPA ECHO) Agency record

    Severity 3

  22. Smyrna Ready Mix Llc Plant 5, Franklin

    Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution).

    TRI facility ID 37064FRNKL429CE (U.S. EPA Toxics Release Inventory)

    Severity 3

  23. Apcom Inc., Franklin

    Air permit holder (minor source). Penalties $8,126.

    EPA FRS registry ID 110007399760 (U.S. EPA ECHO) Agency record

    Severity 2.8

  24. Cartwright Creek Llc, Thompsons Station

    NPDES wastewater discharge permit. Penalties $10,544.

    EPA FRS registry ID 110009706069 (U.S. EPA ECHO) Agency record

    Severity 2.8

  25. Metalico-College Grove, Inc., College Grove

    Air permit holder (minor source).

    EPA FRS registry ID 110002040069 (U.S. EPA ECHO) Agency record

    Severity 2.5

Correctional facilities

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

  • Williamson County Jail Facilities Special Operations Division, Franklin

    EPA FRS registry ID
    110070000555
    Wastewater permit
    Yes

    EPA detailed facility report

Discovery / public records

Records to request for Williamson 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 Williamson 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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