Envyrofax
Scan an Address

HI / county FIPS 15009 / county research

Maui County, Hawaii: environmental and disease records

Cancer mortality in Maui County is 123.2 deaths per 100,000 people per year against a U.S. rate of 143.2. The strongest disease signals are Liver & bile duct deaths at 1.3 times the U.S. rate. Federal databases place 987 regulated facilities, sites and hazards inside the county, led by Industrial wastewater discharge (539), NPDES wastewater discharge permit (322), Gas station (mapped facility) (38). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 20 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: 20.8032, -156.3122.

How this county ranks in Hawaii

View on the heat mapScan an address in this county

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 Maui County compared with the United States
CancerMeasureCounty rateU.S. rateTimes U.S.95% intervalYears
Melanoma of the skinNew cases32.123.81.35xSignificant28.7 to 35.82019-2023
Liver & bile ductDeaths8.66.61.3xSignificant7 to 10.52020-2024
ThyroidNew cases16.3131.25xSignificant13.8 to 19.32019-2023
Liver & bile ductNew cases9.58.71.09x7.8 to 11.52019-2023
StomachDeaths2.82.71.04x1.9 to 4.12020-2024
StomachNew cases6.86.61.03x5.4 to 8.62019-2023
All cancerNew cases421453.40.93x408.7 to 433.72019-2023
PancreasDeaths9.911.30.88x8.2 to 11.92020-2024
All cancerDeaths123.2143.20.86x116.8 to 129.82020-2024
Non-Hodgkin lymphomaDeaths4.14.80.85x3 to 5.52020-2024
Melanoma of the skinDeaths1.720.85x1 to 2.82020-2024
Non-Hodgkin lymphomaNew cases15.318.50.83x13 to 17.82019-2023
PancreasNew cases11.213.90.81x9.3 to 13.42019-2023
Childhood cancer (under 15)New cases13.116.40.8x7.9 to 20.52019-2023
BladderNew cases14.418.70.77x12.3 to 16.82019-2023
LeukemiaNew cases10.914.50.75x8.9 to 13.22019-2023
Lung & bronchusDeaths22.630.20.75x20 to 25.52020-2024
LeukemiaDeaths4.25.70.74x3.1 to 5.72020-2024
BladderDeaths34.10.73x2.1 to 4.22020-2024
EsophagusNew cases3.24.60.7x2.2 to 4.42019-2023
Kidney & renal pelvisNew cases12.217.90.68x10.1 to 14.52019-2023
Brain & nervous systemNew cases4.16.20.66x2.9 to 5.72019-2023
Lung & bronchusNew cases34.251.80.66x31 to 37.82019-2023
Kidney & renal pelvisDeaths1.93.40.56x1.2 to 2.92020-2024
Brain & nervous systemDeaths2.44.40.55x1.6 to 3.62020-2024
EsophagusDeaths23.70.54x1.3 to 32020-2024

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 Maui County
MeasureCountyU.S. medianDifferenceUnit
Premature death6,323.29,842.6-36%years of life lost before age 75 per 100,000
Life expectancy81.775.3+9%years
Child mortality42.159.8-30%deaths under age 18 per 100,000
Infant mortality4.96.2-21%deaths under age 1 per 1,000 live births
Injury deaths67.796.9-30%deaths per 100,000
Drug overdose deaths19.528.6-32%deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 20 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

  • Formaldehyde10.63 per million
  • Carbon Tetrachloride2.82 per million
  • Benzene0.99 per million
  • Acetaldehyde0.68 per million

EPA Air Quality Index 2025

Monitored on 360 days: 353 good, 0 unhealthy for sensitive groups or worse. Median AQI 21, peak 69.

Regulated facilities, sites and hazards by type

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

  • Industrial wastewater discharge539
  • NPDES wastewater discharge permit322
  • Gas station (mapped facility)38
  • Small hazardous waste generator14
  • Hazardous waste transporter11
  • Major air pollution source8
  • Air permit holder (minor source)5
  • Commercial airport5
  • Landfill (mapped facility)5
  • Oil-fired power plant5
  • Wastewater plant (mapped facility)5
  • Large greenhouse gas emitter4
  • TRI reporting facility4
  • Toxic chemical release facility (TRI)4
  • EPA air quality monitor3
  • Brownfield property3
  • Solar power plant3
  • Wind power plant3
  • Public airport2
  • Heliport2
  • Hydroelectric plant2

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. Maui Electric Co Ltd Kahului Generating Station, Kahului

    Toxic chemical release facility (TRI). Chemicals: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Lead And Lead Compounds, Polycyclic aromatic compounds, Benzo[g,h,i]perylene and 1 more. Reports carcinogens. 750,050 lbs released over 5 years.

    TRI facility ID 96732KHLGN200HO (U.S. EPA Toxics Release Inventory)

    Severity 9

  2. Maui Electric Co Ltd Maalaea Generating Station, Kihei

    Toxic chemical release facility (TRI). Chemicals: Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia, Naphthalene, Polycyclic aromatic compounds and 3 more. Reports carcinogens. 418,331 lbs released over 5 years.

    TRI facility ID 96793MLGNRNKIHE (U.S. EPA Toxics Release Inventory)

    Severity 8.8

  3. Maui Electric Co (Meco) - Maalaea Generating Station, Kihei

    TRI reporting facility. Penalties $235,400.

    EPA FRS registry ID 110010385528 (U.S. EPA ECHO) Agency record

    Severity 7.3

  4. Maui Electric Co (Meco) - Kahului Generating Station, Kahului

    TRI reporting facility.

    EPA FRS registry ID 110000486395 (U.S. EPA ECHO) Agency record

    Severity 6.4

  5. Maui Electric Co Ltd Miki Basin Generating Station, Lanai City

    Toxic chemical release facility (TRI). Chemicals: Naphthalene, Polycyclic aromatic compounds. Reports carcinogens. 238 lbs released over 5 years.

    TRI facility ID 96763MLCTR1001N (U.S. EPA Toxics Release Inventory)

    Severity 6.3

  6. Maui Electric Co Ltd Palaau Generating Station, Kaunakakai

    Toxic chemical release facility (TRI). Chemicals: Naphthalene, Polycyclic aromatic compounds. Reports carcinogens. 215 lbs released over 5 years.

    TRI facility ID 96748MLCTR32AUL (U.S. EPA Toxics Release Inventory)

    Severity 6.3

  7. Wailea Golf Estates Ii Condominium, Kihei

    NPDES wastewater discharge permit. Penalties $2,200.

    EPA FRS registry ID 110071711087 (U.S. EPA ECHO) Agency record

    Severity 5.3

  8. Kapalua, Lahaina

    Commercial airport. O.

    Record ID JHM (FAA / U.S. DOT)

    Severity 5

  9. Lanai, Lanai City

    Commercial airport. O.

    Record ID LNY (FAA / U.S. DOT)

    Severity 5

  10. Molokai, Kaunakakai

    Commercial airport. O.

    Record ID MKK (FAA / U.S. DOT)

    Severity 5

  11. Kahului, Kahului

    Commercial airport. O.

    Record ID OGG (FAA / U.S. DOT)

    Severity 5

  12. Meco - Miki Basin Power Plant, Lanai City

    TRI reporting facility.

    EPA FRS registry ID 110001764029 (U.S. EPA ECHO) Agency record

    Severity 4.8

  13. Maui Electric Power Co, Ltd., Moloka'I Power Plant, Kaunakakai

    TRI reporting facility.

    EPA FRS registry ID 110008062283 (U.S. EPA ECHO) Agency record

    Severity 4.8

  14. Ameron International Corp Dba Ameron Hawaii, Puunene

    Major air pollution source. Penalties $300.

    EPA FRS registry ID 110001322890 (U.S. EPA ECHO) Agency record

    Severity 4.8

  15. Maui Electric Co (Meco) - Maalaea Generating Station, Kihei

    Major air pollution source. Penalties $235,400.

    EPA FRS registry ID 110010385528 (U.S. EPA ECHO) Agency record

    Severity 4.5

  16. County Of Maui - Central Maui Mswl, Puunene

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110043806012 (U.S. EPA ECHO) Agency record

    Severity 4.5

  17. Maui Bay Villas, Kihei

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110064859906 (U.S. EPA ECHO) Agency record

    Severity 4.5

  18. Rehabilitation Of Localized Streets, Idiq #4 - Wo#6, Unknown

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110070237810 (U.S. EPA ECHO) Agency record

    Severity 4.5

  19. Lai Loa Condominium Resort Development, Unknown

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110071068351 (U.S. EPA ECHO) Agency record

    Severity 4.5

  20. Overall Site Improvements Four Seasons Resort Lana?I, Ko?Ele, Lanai City

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110071711071 (U.S. EPA ECHO) Agency record

    Severity 4.5

  21. Ameron International Corp Dba Ameron Hawaii, Puunene

    NPDES wastewater discharge permit. Penalties $300.

    EPA FRS registry ID 110001322890 (U.S. EPA ECHO) Agency record

    Severity 4.3

  22. Wake Island Water Plant, Wake Island

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110070819241 (U.S. EPA ECHO) Agency record

    Severity 4.3

  23. Maalaea, Kihei

    Oil-fired power plant.

    Record ID 6504 (U.S. Energy Information Administration)

    Severity 4.2

  24. Kahului, Kahului

    Oil-fired power plant.

    Record ID 6056 (U.S. Energy Information Administration)

    Severity 4

  25. Palaau Power Hybrid, Kaunakakai

    Oil-fired power plant.

    Record ID 792 (U.S. Energy Information Administration)

    Severity 4

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 Maui County

  • Hawaii 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 Maui County, and their findings.

  • Hawaii vital statistics office

    Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.

  • Hawaii health department, environmental epidemiology

    Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.

  • Hawaii 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.

  • Hawaii 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.

Scan an address in Maui CountyView on the heat mapAll Hawaii counties