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Montgomery County, Pennsylvania: environmental and disease records

Cancer mortality in Montgomery County is 130.4 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 2,823 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (1,036), Air permit holder (minor source) (503), Small hazardous waste generator (307). 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: 40.2132, -75.3641.

How this county ranks in Pennsylvania

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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
Childhood cancer (under 15)	New cases	18.5	16.4	1.13x	15.6 to 21.9	2019-2023
Brain & nervous system	Deaths	4.9	4.4	1.11x	4.4 to 5.6	2020-2024
Brain & nervous system	New cases	6.8	6.2	1.1x	6.1 to 7.6	2019-2023
Esophagus	Deaths	3.9	3.7	1.05x	3.5 to 4.5	2020-2024
Stomach	Deaths	2.8	2.7	1.04x	2.3 to 3.2	2020-2024
Pancreas	New cases	14.2	13.9	1.02x	13.3 to 15.2	2019-2023
Bladder	New cases	19.1	18.7	1.02x	18 to 20.2	2019-2023
Pancreas	Deaths	11.5	11.3	1.02x	10.6 to 12.4	2020-2024
Melanoma of the skin	Deaths	2	2	1x	1.6 to 2.4	2020-2024
Non-Hodgkin lymphoma	New cases	18.5	18.5	1x	17.4 to 19.7	2019-2023
Thyroid	New cases	12.6	13	0.97x	11.6 to 13.7	2019-2023
Stomach	New cases	6.3	6.6	0.95x	5.6 to 7	2019-2023
All cancer	New cases	431.1	453.4	0.95x	425.6 to 436.6	2019-2023
Non-Hodgkin lymphoma	Deaths	4.5	4.8	0.94x	4 to 5.1	2020-2024
Leukemia	Deaths	5.2	5.7	0.91x	4.6 to 5.8	2020-2024
All cancer	Deaths	130.4	143.2	0.91x	127.5 to 133.4	2020-2024
Esophagus	New cases	4.1	4.6	0.89x	3.5 to 4.6	2019-2023
Lung & bronchus	New cases	45.5	51.8	0.88x	43.8 to 47.3	2019-2023
Bladder	Deaths	3.6	4.1	0.88x	3.2 to 4.1	2020-2024
Leukemia	New cases	12.3	14.5	0.85x	11.3 to 13.3	2019-2023
Lung & bronchus	Deaths	25	30.2	0.83x	23.8 to 26.3	2020-2024
Kidney & renal pelvis	New cases	14.7	17.9	0.82x	13.7 to 15.8	2019-2023
Liver & bile duct	New cases	7.1	8.7	0.82x	6.5 to 7.9	2019-2023
Kidney & renal pelvis	Deaths	2.7	3.4	0.79x	2.3 to 3.2	2020-2024
Liver & bile duct	Deaths	4.9	6.6	0.74x	4.4 to 5.5	2020-2024
Melanoma of the skin	New cases	16.4	23.8	0.69x	15.4 to 17.6	2019-2023
Thyroid	Deaths	0.3	0.5	0.6x	0.2 to 0.5	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 Montgomery County
Measure	County	U.S. median	Difference	Unit
Premature death	5,469.5	9,842.6	-44%	years of life lost before age 75 per 100,000
Life expectancy	80	75.3	+6%	years
Child mortality	31.1	59.8	-48%	deaths under age 18 per 100,000
Infant mortality	4	6.2	-36%	deaths under age 1 per 1,000 live births
Injury deaths	68.4	96.9	-29%	deaths per 100,000
Drug overdose deaths	24.5	28.6	-14%	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.

Formaldehyde19.12 per million
Carbon Tetrachloride2.98 per million
Benzene2.16 per million
Acetaldehyde1.98 per million

EPA Air Quality Index 2025

Monitored on 365 days: 268 good, 1 unhealthy for sensitive groups or worse. Median AQI 41, peak 133.

Regulated facilities, sites and hazards by type

2,823 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

NPDES wastewater discharge permit1,036
Air permit holder (minor source)503
Small hazardous waste generator307
Gas station (mapped facility)198
Auto repair or body shop (mapped facility)195
Rail grade crossing156
Brownfield property85
Large hazardous waste generator59
Toxic chemical release facility (TRI)57
Dry cleaner (mapped facility)52
TRI reporting facility46
Major air pollution source32
Heliport19
Wastewater plant (mapped facility)19
Superfund (NPL) site17
Large greenhouse gas emitter9
Hazardous waste transporter7
Scrapyard (mapped facility)6
Public airport4
Landfill (mapped facility)3
Gas power plant3
Solar power plant3
Commercial airport2
EPA air quality monitor1
Correctional facility (prison or jail)1
Biomass power plant1
Nuclear power plant1
Oil-fired 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.

Jbs Souderton Inc/Franconia Twp, Souderton
TRI reporting facility. Penalties $113,707.
EPA FRS registry ID 110000335851 (U.S. EPA ECHO) Agency record
Severity 10
North Penn - Area 2, Hatfield
Superfund (NPL) site. Hazard Ranking System score 35.6. NPL Site.
EPA site ID PAD002342475 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
North Penn - Area 7, North Wales
Superfund (NPL) site. Hazard Ranking System score 35.6. NPL Site.
EPA site ID PAD002498632 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Henderson Road, Upper Merion Township
Superfund (NPL) site. Hazard Ranking System score 41.7. NPL Site.
EPA site ID PAD009862939 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Stanley Kessler, King Of Prussia
Superfund (NPL) site. Hazard Ranking System score 33.9. NPL Site.
EPA site ID PAD014269971 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Raymark, Hatboro
Superfund (NPL) site. Hazard Ranking System score 53.4. NPL Site.
EPA site ID PAD039017694 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
North Penn - Area 12, Worcester
Superfund (NPL) site. Hazard Ranking System score 28.9. NPL Site.
EPA site ID PAD057152365 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Commodore Semiconductor Group, Lower Providence Township
Superfund (NPL) site. Hazard Ranking System score 42.4. NPL Site.
EPA site ID PAD093730174 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
North Penn - Area 1, Souderton
Superfund (NPL) site. Hazard Ranking System score 35.6. NPL Site.
EPA site ID PAD096834494 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Occidental Chemical Corp./Firestone Tire & Rubber Co., Lower Pottsgrove Township
Superfund (NPL) site. Hazard Ranking System score 45.9. NPL Site.
EPA site ID PAD980229298 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Crater Resources, Inc./Keystone Coke Co./Alan Wood Steel Co., Upper Merion Township
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID PAD980419097 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Tysons Dump, Upper Merion Township
Superfund (NPL) site. Hazard Ranking System score 63.1. NPL Site.
EPA site ID PAD980692024 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
North Penn - Area 5, Montgomery Township
Superfund (NPL) site. Hazard Ranking System score 35.6. NPL Site.
EPA site ID PAD980692693 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Salford Quarry, Lower Salford Township
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID PAD980693204 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
North Penn - Area 6, Lansdale
Superfund (NPL) site. Hazard Ranking System score 35.6. NPL Site.
EPA site ID PAD980926976 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
BoRit Asbestos, Ambler
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID PAD981034887 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Willow Grove Naval Air and Air Reserve Station, Willow Grove
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID PAD987277837 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Baghurst Drive, Harleysville
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID PAN000306939 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Accellent Inc/Collegeville Microcoax, Collegeville
TRI reporting facility. Penalties $340,000.
EPA FRS registry ID 110001203689 (U.S. EPA ECHO) Agency record
Severity 9.7
Clemens Food Group/Hatfield Plt, Hatfield
TRI reporting facility. Penalties $262,084.
EPA FRS registry ID 110070828202 (U.S. EPA ECHO) Agency record
Severity 9.5
Global Advanced Metals Usa, Boyertown
Toxic chemical release facility (TRI). Chemicals: Methyl isobutyl ketone, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen fluoride, Nitric acid and 4 more. Reports carcinogens. 1,300,427 lbs released over 5 years.
TRI facility ID 19512CBTCRCOUNT (U.S. EPA Toxics Release Inventory)
Severity 9.2
Superior Tube Collegeville Fac, Collegeville
TRI reporting facility.
EPA FRS registry ID 110000337608 (U.S. EPA ECHO) Agency record
Severity 9.2
Superior Tube Co Inc, Collegeville
Toxic chemical release facility (TRI). Chemicals: 1-Bromopropane, Hydrogen fluoride, Nitric acid, Nickel. Reports carcinogens. 826,281 lbs released over 5 years.
TRI facility ID 19426SPRRT3900G (U.S. EPA Toxics Release Inventory)
Severity 9
Viant Collegeville Llc, Trappe
Toxic chemical release facility (TRI). Chemicals: Trichloroethylene, Nitric acid, Tetrachloroethylene, Chromium and 3 more. Reports carcinogens. 322,429 lbs released over 5 years.
TRI facility ID 19426NFRMT200WE (U.S. EPA Toxics Release Inventory)
Severity 8.7
Coopers Creek Chemical Corp, Conshohocken
Toxic chemical release facility (TRI). Chemicals: Polycyclic aromatic compounds, Naphthalene, Creosote, Phenanthrene and 4 more. Reports carcinogens. 95,927 lbs released over 5 years.
TRI facility ID 19428CPRSCRIVER (U.S. EPA Toxics Release Inventory)
Severity 8.3

Correctional facilities

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

Airy Street Prison Demolition, Norristown Borough
EPA FRS registry ID
110071438761
Wastewater permit
Yes
EPA detailed facility report

Discovery / public records

Records to request for Montgomery County

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