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Pinal County, Arizona: environmental and disease records

Cancer mortality in Pinal County is 122.9 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 1,812 regulated facilities, sites and hazards inside the county, led by Industrial wastewater discharge (998), NPDES wastewater discharge permit (223), Rail grade crossing (129). 3 correctional facilities operate in the county, at least one with health-based drinking water violations on record. 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: 32.9656, -111.3262.

How this county ranks in Arizona

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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 Pinal County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Melanoma of the skin	New cases	33.8	23.8	1.42xSignificant	31.7 to 36	2019-2023
Childhood cancer (under 15)	New cases	20.4	16.4	1.24x	16.2 to 25.4	2019-2023
Melanoma of the skin	Deaths	2.1	2	1.05x	1.6 to 2.7	2020-2024
Brain & nervous system	New cases	6.4	6.2	1.03x	5.4 to 7.4	2019-2023
Bladder	Deaths	4.2	4.1	1.02x	3.5 to 5	2020-2024
Esophagus	Deaths	3.7	3.7	1x	3 to 4.4	2020-2024
Thyroid	Deaths	0.5	0.5	1x	0.3 to 0.9	2020-2024
Thyroid	New cases	12.8	13	0.98x	11.4 to 14.4	2019-2023
Non-Hodgkin lymphoma	Deaths	4.7	4.8	0.98x	4 to 5.6	2020-2024
Liver & bile duct	Deaths	6.3	6.6	0.95x	5.5 to 7.3	2020-2024
Kidney & renal pelvis	New cases	16.3	17.9	0.91x	14.8 to 17.9	2019-2023
Liver & bile duct	New cases	7.8	8.7	0.9x	6.9 to 8.9	2019-2023
Esophagus	New cases	4.1	4.6	0.89x	3.4 to 4.9	2019-2023
Stomach	Deaths	2.4	2.7	0.89x	1.9 to 3.1	2020-2024
Bladder	New cases	16.5	18.7	0.88x	15.2 to 18	2019-2023
Kidney & renal pelvis	Deaths	3	3.4	0.88x	2.4 to 3.6	2020-2024
Brain & nervous system	Deaths	3.8	4.4	0.86x	3.1 to 4.7	2020-2024
Leukemia	Deaths	4.9	5.7	0.86x	4.1 to 5.7	2020-2024
Pancreas	Deaths	9.7	11.3	0.86x	8.7 to 10.8	2020-2024
All cancer	Deaths	122.9	143.2	0.86x	119 to 126.8	2020-2024
Pancreas	New cases	11.6	13.9	0.83x	10.4 to 12.8	2019-2023
All cancer	New cases	378.3	453.4	0.83x	371.2 to 385.5	2019-2023
Non-Hodgkin lymphoma	New cases	14.8	18.5	0.8x	13.5 to 16.3	2019-2023
Lung & bronchus	Deaths	23.9	30.2	0.79x	22.3 to 25.6	2020-2024
Stomach	New cases	5.2	6.6	0.79x	4.4 to 6.1	2019-2023
Leukemia	New cases	11.2	14.5	0.77x	10 to 12.5	2019-2023
Lung & bronchus	New cases	39.4	51.8	0.76x	37.3 to 41.6	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 Pinal County
Measure	County	U.S. median	Difference	Unit
Premature death	9,284.8	9,842.6	-6%	years of life lost before age 75 per 100,000
Life expectancy	78.1	75.3	+4%	years
Child mortality	62.7	59.8	+5%	deaths under age 18 per 100,000
Infant mortality	5.8	6.2	-6%	deaths under age 1 per 1,000 live births
Injury deaths	82.3	96.9	-15%	deaths per 100,000
Drug overdose deaths	25.3	28.6	-11%	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.

Formaldehyde15.69 per million
Carbon Tetrachloride2.75 per million
Acetaldehyde1.05 per million
Benzene0.73 per million

EPA Air Quality Index 2025

Monitored on 365 days: 62 good, 34 unhealthy for sensitive groups or worse. Median AQI 67, peak 1,215.

Regulated facilities, sites and hazards by type

1,812 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

Industrial wastewater discharge998
NPDES wastewater discharge permit223
Rail grade crossing129
Gas station (mapped facility)97
Auto repair or body shop (mapped facility)47
Toxic chemical release facility (TRI)41
Wastewater plant (mapped facility)40
TRI reporting facility35
Brownfield property33
Small hazardous waste generator31
Major air pollution source20
Air permit holder (minor source)19
Public airport16
EPA air quality monitor15
Large hazardous waste generator14
Solar power plant10
Large greenhouse gas emitter8
Scrapyard (mapped facility)8
Hazardous waste transporter6
Heliport6
Landfill (mapped facility)5
Gas power plant5
Correctional facility (prison or jail)3
Commercial airport2
Airfield1

Highest-severity records

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

Asarco Llc Ray Mine Operations, Kearny
Toxic chemical release facility (TRI). Chemicals: Lead And Lead Compounds, Lead compounds, Chromium, Manganese and 4 more. Reports carcinogens. 4,518,609 lbs released over 5 years.
TRI facility ID 85237SRCNCHWY17 (U.S. EPA Toxics Release Inventory)
Severity 9.6
Arizona Environmental Container Corp, Eloy
Toxic chemical release facility (TRI). Chemicals: Styrene. Reports carcinogens. 279,584 lbs released over 5 years.
TRI facility ID 85231RZNNV850DA (U.S. EPA Toxics Release Inventory)
Severity 8.7
Asarco Llc Ray Mine Operations, Kearny
TRI reporting facility.
EPA FRS registry ID 110000471338 (U.S. EPA ECHO) Agency record
Severity 8.5
Mesa Fully Formed Llc-Coolidge, Coolidge
Toxic chemical release facility (TRI). Chemicals: Styrene. Reports carcinogens. 79,418 lbs released over 5 years.
TRI facility ID 8522WMSFLL13413 (U.S. EPA Toxics Release Inventory)
Severity 8.3
Hexcel Corp, Casa Grande
Toxic chemical release facility (TRI). Chemicals: Phenol, N-Methyl-2-pyrrolidone, Methanol, Toluene and 4 more. Reports carcinogens. 78,176 lbs released over 5 years.
TRI facility ID 85222HXCLC1214W (U.S. EPA Toxics Release Inventory)
Severity 8.3
Kohler Co. Casa Grande, Casa Grande
Toxic chemical release facility (TRI). Chemicals: Styrene. Reports carcinogens. 76,808 lbs released over 5 years.
TRI facility ID 8519WKHLRC1495N (U.S. EPA Toxics Release Inventory)
Severity 8.2
HIDDEN VALLEY, Stanfield
EPA air quality monitor.
Record ID 040213015 (U.S. EPA AirData)
Severity 8
Army Nat Guard Florence Training Range, Florence
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens. 30,841 lbs released over 5 years.
TRI facility ID 85232SRMYN11NFL (U.S. EPA Toxics Release Inventory)
Severity 7.9
Aco Polymer Products Inc, Casa Grande
Toxic chemical release facility (TRI). Chemicals: Styrene, Chromium. Reports carcinogens. 18,475 lbs released over 5 years.
TRI facility ID 8522WCPLYM825WB (U.S. EPA Toxics Release Inventory)
Severity 7.8
Kloeckner Metals Corp, Apache Junction
Toxic chemical release facility (TRI). Chemicals: Manganese, Nickel, Chromium, Copper. Reports carcinogens. 5,315 lbs released over 5 years.
TRI facility ID 85220TMTCS2465W (U.S. EPA Toxics Release Inventory)
Severity 7.4
Bull Moose Tube Co, Casa Grande
Toxic chemical release facility (TRI). Chemicals: Certain glycol ethers. 194,200 lbs released over 5 years.
TRI facility ID 85222MLYPL1001N (U.S. EPA Toxics Release Inventory)
Severity 7.1
Resolution Copper Mining, Superior
Toxic chemical release facility (TRI). Chemicals: Lead And Lead Compounds, Mercury compounds. 155,837 lbs released over 5 years.
TRI facility ID 85273RSLTN12MAG (U.S. EPA Toxics Release Inventory)
Severity 7
Abbott Nutrition A Div Of Abbott Laboratories, Casa Grande
Toxic chemical release facility (TRI). Chemicals: Sulfuryl fluoride, Peracetic acid, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid. 148,395 lbs released over 5 years.
TRI facility ID 85222RSSLB1250W (U.S. EPA Toxics Release Inventory)
Severity 7
Sacaton Batch Plant #11, Sacaton
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead. Reports carcinogens. 763 lbs released over 5 years.
TRI facility ID 8524WSCTNX2161W (U.S. EPA Toxics Release Inventory)
Severity 6.7
Schuff Steel Co - Eloy, Eloy
Toxic chemical release facility (TRI). Chemicals: Manganese, Chromium, Nickel, Lead. Reports carcinogens. 374 lbs released over 5 years.
TRI facility ID 8513WSCHFF175WB (U.S. EPA Toxics Release Inventory)
Severity 6.5
Kohler Company, Casa Grande
TRI reporting facility.
EPA FRS registry ID 110071278141 (U.S. EPA ECHO) Agency record
Severity 6.4
Fabricated Products Inc Dba Seafab Metals Co, Casa Grande
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens. 153 lbs released over 5 years.
TRI facility ID 85222STRCK1112A (U.S. EPA Toxics Release Inventory)
Severity 6.2
Arizona Environmental Container Corp, Eloy
TRI reporting facility.
EPA FRS registry ID 110013286461 (U.S. EPA ECHO) Agency record
Severity 6.2
Hanson Aggregates Llc - Sacaton, Sacaton
Toxic chemical release facility (TRI). Chemicals: Aluminum (fume or dust), Lead. Reports carcinogens. 115 lbs released over 5 years.
TRI facility ID 85247HNSNG2126N (U.S. EPA Toxics Release Inventory)
Severity 6.1
Abbott Nutrition Division, Casa Grande, Casa Grande
TRI reporting facility.
EPA FRS registry ID 110000471043 (U.S. EPA ECHO) Agency record
Severity 6
Vulcan Materials Co Queen Creek Plant, Florence
Toxic chemical release facility (TRI). Chemicals: Propylene, Polycyclic aromatic compounds, Benzo[g,h,i]perylene, Ethylene glycol. Reports carcinogens. 92 lbs released over 5 years.
TRI facility ID 8523WVLCNM939EH (U.S. EPA Toxics Release Inventory)
Severity 6
Casa Grande Wrf, Casa Grande
NPDES wastewater discharge permit.
EPA FRS registry ID 110022287210 (U.S. EPA ECHO) Agency record
Severity 6
Town Of Superior Wastewater Treatment Plant (Wwtp), Superior
Major air pollution source.
EPA FRS registry ID 110055977448 (U.S. EPA ECHO) Agency record
Severity 6
Hexcel Corp, Casa Grande
TRI reporting facility.
EPA FRS registry ID 110000600644 (U.S. EPA ECHO) Agency record
Severity 6
Mesa Fully Formed - Coolidge, Coolidge
TRI reporting facility.
EPA FRS registry ID 110070206167 (U.S. EPA ECHO) Agency record
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.

Arizona Department Of Corrections, Florence
EPA FRS registry ID
110010062494
Wastewater permit
Yes, 4 quarters in noncompliance
EPA detailed facility report
Eloy Detention Center, Eloy
EPA FRS registry ID
110040944734
Water system
AZ0411115
Health-based violations
2 all time, 0 in 5 years
All violations
135
Contaminants cited
Arsenic, Coliform (TCR)
Wastewater permit
None on record
EPA detailed facility report
Arizona Correctional Industries, Florence
EPA FRS registry ID
110031289353
Wastewater permit
None on record
EPA detailed facility report

Discovery / public records

Records to request for Pinal County

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