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Washington County, Oregon: environmental and disease records

Cancer mortality in Washington County is 126.9 deaths per 100,000 people per year against a U.S. rate of 143.2. The strongest disease signals are Leukemia deaths at 1.2 times the U.S. rate. Federal databases place 1,500 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (690), Rail grade crossing (238), Auto repair or body shop (mapped facility) (146). 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: 45.5489, -123.098.

How this county ranks in Oregon

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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 Washington 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	29.1	23.8	1.22xSignificant	27.3 to 31	2019-2023
Leukemia	Deaths	6.7	5.7	1.18xSignificant	5.8 to 7.7	2020-2024
Brain & nervous system	New cases	6.9	6.2	1.11x	6 to 7.9	2019-2023
Kidney & renal pelvis	Deaths	3.7	3.4	1.09x	3 to 4.4	2020-2024
Non-Hodgkin lymphoma	Deaths	5.2	4.8	1.08x	4.5 to 6.1	2020-2024
Brain & nervous system	Deaths	4.6	4.4	1.05x	3.9 to 5.4	2020-2024
Thyroid	New cases	13.3	13	1.02x	12.1 to 14.7	2019-2023
Non-Hodgkin lymphoma	New cases	18.8	18.5	1.02x	17.3 to 20.4	2019-2023
Thyroid	Deaths	0.5	0.5	1x	0.3 to 0.9	2020-2024
Leukemia	New cases	14.2	14.5	0.98x	12.9 to 15.6	2019-2023
Bladder	New cases	18.1	18.7	0.97x	16.6 to 19.6	2019-2023
Stomach	Deaths	2.6	2.7	0.96x	2.1 to 3.3	2020-2024
Liver & bile duct	New cases	8.3	8.7	0.95x	7.3 to 9.3	2019-2023
Bladder	Deaths	3.9	4.1	0.95x	3.2 to 4.6	2020-2024
Melanoma of the skin	Deaths	1.9	2	0.95x	1.5 to 2.5	2020-2024
All cancer	New cases	419.5	453.4	0.93x	412.5 to 426.6	2019-2023
Esophagus	New cases	4.2	4.6	0.91x	3.5 to 4.9	2019-2023
Childhood cancer (under 15)	New cases	14.8	16.4	0.9x	11.7 to 18.5	2019-2023
Stomach	New cases	5.9	6.6	0.89x	5.1 to 6.8	2019-2023
All cancer	Deaths	126.9	143.2	0.89x	123.1 to 130.9	2020-2024
Pancreas	New cases	12.3	13.9	0.88x	11.1 to 13.6	2019-2023
Esophagus	Deaths	3.2	3.7	0.86x	2.7 to 3.9	2020-2024
Pancreas	Deaths	9.3	11.3	0.82x	8.3 to 10.4	2020-2024
Kidney & renal pelvis	New cases	14.4	17.9	0.8x	13.1 to 15.8	2019-2023
Lung & bronchus	New cases	40.9	51.8	0.79x	38.7 to 43.1	2019-2023
Liver & bile duct	Deaths	5.1	6.6	0.77x	4.4 to 5.9	2020-2024
Lung & bronchus	Deaths	22.1	30.2	0.73x	20.5 to 23.8	2020-2024

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 Washington County
Measure	County	U.S. median	Difference	Unit
Premature death	4,799.6	9,842.6	-51%	years of life lost before age 75 per 100,000
Life expectancy	81.1	75.3	+8%	years
Child mortality	32.3	59.8	-46%	deaths under age 18 per 100,000
Infant mortality	4	6.2	-36%	deaths under age 1 per 1,000 live births
Injury deaths	51.1	96.9	-47%	deaths per 100,000
Drug overdose deaths	13.4	28.6	-53%	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.

Formaldehyde18.51 per million
Naphthalene4.84 per million
Acetaldehyde3.03 per million
Carbon Tetrachloride3 per million

EPA Air Quality Index 2025

Monitored on 365 days: 289 good, 0 unhealthy for sensitive groups or worse. Median AQI 36, peak 88.

Regulated facilities, sites and hazards by type

1,500 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

NPDES wastewater discharge permit690
Rail grade crossing238
Auto repair or body shop (mapped facility)146
Gas station (mapped facility)107
Small hazardous waste generator61
Brownfield property48
Toxic chemical release facility (TRI)43
TRI reporting facility39
Dry cleaner (mapped facility)32
Large hazardous waste generator31
Air permit holder (minor source)19
Public airport12
Hazardous waste transporter8
Heliport6
Large greenhouse gas emitter4
EPA air quality monitor3
Wastewater plant (mapped facility)3
Major air pollution source2
Landfill (mapped facility)2
Solar power plant2
Airfield1
Commercial airport1
Biomass power plant1
Scrapyard (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.

Intel Corp-Ronler Acres Campus, Hillsboro
Toxic chemical release facility (TRI). Chemicals: Ozone, Hydrogen fluoride, Ammonia, Fluorine and 4 more. Reports carcinogens. 166,250 lbs released over 5 years.
TRI facility ID 97124NTLCR2501N (U.S. EPA Toxics Release Inventory)
Severity 8.5
Permapost Products Co., Hillsboro
TRI reporting facility. Penalties $1,200.
EPA FRS registry ID 110000486974 (U.S. EPA ECHO) Agency record
Severity 8
Intel Corporation Ronler Acres Campus, Hillsboro
TRI reporting facility. Penalties $39,187.
EPA FRS registry ID 110000487018 (U.S. EPA ECHO) Agency record
Severity 7.3
Qorvo Us, Inc., Hillsboro
TRI reporting facility. Penalties $9,600.
EPA FRS registry ID 110000895014 (U.S. EPA ECHO) Agency record
Severity 7.2
Permapost Products Co., Hillsboro
Large hazardous waste generator. Penalties $1,200.
EPA FRS registry ID 110000486974 (U.S. EPA ECHO) Agency record
Severity 7
Permapost Products Co., Hillsboro
NPDES wastewater discharge permit. Penalties $1,200.
EPA FRS registry ID 110000486974 (U.S. EPA ECHO) Agency record
Severity 7
Analog Devices Inc. Beaverton, Beaverton
Toxic chemical release facility (TRI). Chemicals: Ethylene glycol, N-Methyl-2-pyrrolidone, Nitric acid, Hydrogen fluoride and 2 more. 133,899 lbs released over 5 years.
TRI facility ID 97005MXMNT14320 (U.S. EPA Toxics Release Inventory)
Severity 6.9
Quantumclean, Hillsboro
Toxic chemical release facility (TRI). Chemicals: Hydrogen fluoride, Nitric acid, Ethylene glycol, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) and 2 more. 33,934 lbs released over 5 years.
TRI facility ID 97124BCDWR21421 (U.S. EPA Toxics Release Inventory)
Severity 6.5
Dynic Usa, Hillsboro
Toxic chemical release facility (TRI). Chemicals: Toluene. 27,593 lbs released over 5 years.
TRI facility ID 97124DYNCS4750N (U.S. EPA Toxics Release Inventory)
Severity 6.4
Tokyo Ohka Kogyo America, Hillsboro
TRI reporting facility.
EPA FRS registry ID 110000486992 (U.S. EPA ECHO) Agency record
Severity 6.4
Qorvo Us Inc., Hillsboro
Toxic chemical release facility (TRI). Chemicals: N-Methyl-2-pyrrolidone. 26,871 lbs released over 5 years.
TRI facility ID 9712WTRQNT23NEB (U.S. EPA Toxics Release Inventory)
Severity 6.4
Dmh Inc, Forest Grove
Toxic chemical release facility (TRI). Chemicals: Xylene (mixed isomers). 20,106 lbs released over 5 years.
TRI facility ID 9711WDMHNC38224 (U.S. EPA Toxics Release Inventory)
Severity 6.3
Stimson Lumber Company, Gaston
TRI reporting facility.
EPA FRS registry ID 110014187799 (U.S. EPA ECHO) Agency record
Severity 6.2
Analog Devices, Inc., Beaverton
TRI reporting facility.
EPA FRS registry ID 110022521706 (U.S. EPA ECHO) Agency record
Severity 6.2
Valmont Pacific States Galvanizing, Tualatin
TRI reporting facility. Penalties $7,434.
EPA FRS registry ID 110000486849 (U.S. EPA ECHO) Agency record
Severity 6.2
Anodize Solutions, Tualatin
TRI reporting facility. Penalties $16,481.
EPA FRS registry ID 110064671706 (U.S. EPA ECHO) Agency record
Severity 6.2
Ttm Technologies N.A. Llc, Forest Grove
Toxic chemical release facility (TRI). Chemicals: Certain glycol ethers, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Copper And Copper Compounds and 4 more. 12,055 lbs released over 5 years.
TRI facility ID 97116TKTRN1521P (U.S. EPA Toxics Release Inventory)
Severity 6.1
Pioneer Metal Finishing, Tualatin
TRI reporting facility.
EPA FRS registry ID 110031431804 (U.S. EPA ECHO) Agency record
Severity 6
Oregon Sandblasting And Coating, Tualatin
Large hazardous waste generator.
EPA FRS registry ID 110040933728 (U.S. EPA ECHO) Agency record
Severity 6
Tokyo Ohka Kogyo America Inc, Hillsboro
Toxic chemical release facility (TRI). Chemicals: Methanol, Certain glycol ethers, N-Methyl-2-pyrrolidone. 6,992 lbs released over 5 years.
TRI facility ID 97124HKMRC4600N (U.S. EPA Toxics Release Inventory)
Severity 6
Cascade Columbia Distribution, Sherwood
Toxic chemical release facility (TRI). Chemicals: Hydrogen fluoride, Nitric acid, Manganese And Manganese Compounds, Copper compounds and 4 more. 6,226 lbs released over 5 years.
TRI facility ID 97140CSLDC14200 (U.S. EPA Toxics Release Inventory)
Severity 5.9
Stimson Lumber Co. - Gaston, Gaston
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens. 57 lbs released over 5 years.
TRI facility ID 97119FRSTX49800 (U.S. EPA Toxics Release Inventory)
Severity 5.9
Westak Of Oregon, Forest Grove
TRI reporting facility. Penalties $40,000.
EPA FRS registry ID 110000486956 (U.S. EPA ECHO) Agency record
Severity 5.8
Hillsboro Westside Stp, Hillsboro
NPDES wastewater discharge permit.
EPA FRS registry ID 110016653520 (U.S. EPA ECHO) Agency record
Severity 5.8
Quantum Clean, Hillsboro
TRI reporting facility.
EPA FRS registry ID 110022448403 (U.S. EPA ECHO) Agency record
Severity 5.7

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 Washington County

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