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Warren County, Pennsylvania: environmental and disease records

Cancer mortality in Warren County is 166.9 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Esophagus deaths at 1.7 times the U.S. rate and Lung & bronchus deaths at 1.3 times the U.S. rate. Federal databases place 634 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (410), Rail grade crossing (97), Air permit holder (minor source) (41). 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: 41.8079, -79.2809.

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 Warren County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Esophagus	New cases	8.1	4.6	1.76xSignificant	5.2 to 12.5	2019-2023
Esophagus	Deaths	6.2	3.7	1.68xSignificant	3.8 to 9.8	2020-2024
Kidney & renal pelvis	Deaths	4.8	3.4	1.41x	2.8 to 8.2	2020-2024
Non-Hodgkin lymphoma	Deaths	6.4	4.8	1.33x	3.8 to 10.5	2020-2024
Non-Hodgkin lymphoma	New cases	24.1	18.5	1.3x	18.1 to 31.7	2019-2023
Lung & bronchus	Deaths	38.6	30.2	1.28xSignificant	32.2 to 46.2	2020-2024
Pancreas	New cases	17.3	13.9	1.24x	12.6 to 23.5	2019-2023
Pancreas	Deaths	13.6	11.3	1.2x	9.9 to 18.6	2020-2024
All cancer	Deaths	166.9	143.2	1.17xSignificant	152.6 to 182.5	2020-2024
Lung & bronchus	New cases	57.9	51.8	1.12x	50 to 67	2019-2023
Leukemia	New cases	15.3	14.5	1.06x	10.5 to 21.7	2019-2023
Leukemia	Deaths	5.9	5.7	1.04x	3.6 to 9.5	2020-2024
Stomach	New cases	6.6	6.6	1x	3.9 to 10.7	2019-2023
Bladder	New cases	18.5	18.7	0.99x	14.1 to 24.2	2019-2023
All cancer	New cases	446.4	453.4	0.98x	421.4 to 472.6	2019-2023
Liver & bile duct	Deaths	6	6.6	0.91x	3.5 to 9.8	2020-2024
Melanoma of the skin	New cases	20.1	23.8	0.84x	14.7 to 27	2019-2023
Kidney & renal pelvis	New cases	14.8	17.9	0.83x	10.5 to 20.6	2019-2023
Thyroid	New cases	9.1	13	0.7x	5.3 to 14.7	2019-2023
Liver & bile duct	New cases	5	8.7	0.57x	2.7 to 8.7	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 Warren County
Measure	County	U.S. median	Difference	Unit
Premature death	9,023.4	9,842.6	-8%	years of life lost before age 75 per 100,000
Life expectancy	75.5	75.3	+0%	years
Child mortality	42.6	59.8	-29%	deaths under age 18 per 100,000
Infant mortality	n/a	6.2	n/a	deaths under age 1 per 1,000 live births
Injury deaths	85.8	96.9	-12%	deaths per 100,000
Drug overdose deaths	15.7	28.6	-45%	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.

Formaldehyde13.13 per million
Carbon Tetrachloride2.88 per million
Benzene2.12 per million
Acetaldehyde1.25 per million

EPA Air Quality Index 2025

Monitored on 150 days: 118 good, 3 unhealthy for sensitive groups or worse. Median AQI 35, peak 138.

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit410
Rail grade crossing97
Air permit holder (minor source)41
Gas station (mapped facility)20
Small hazardous waste generator10
Large hazardous waste generator9
Public airport8
Toxic chemical release facility (TRI)8
TRI reporting facility7
Auto repair or body shop (mapped facility)6
Major air pollution source4
Large greenhouse gas emitter3
EPA air quality monitor2
Hazardous waste transporter2
Wastewater plant (mapped facility)2
Dry cleaner (mapped facility)1
Heliport1
Gas power plant1
Pumped storage 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.

United Refining Co/Warren Plt, Warren
TRI reporting facility. Penalties $67,129.
EPA FRS registry ID 110043815690 (U.S. EPA ECHO) Agency record
Severity 10
United Refining Co, Warren
Toxic chemical release facility (TRI). Chemicals: Ammonia, n-Hexane, Benzene, Cyclohexane and 4 more. Reports carcinogens. Reports PFAS. 380,893 lbs released over 5 years.
TRI facility ID 16365NTDRFPOBOX (U.S. EPA Toxics Release Inventory)
Severity 10
Superior Tire & Rubber Corp., Warren
Toxic chemical release facility (TRI). Chemicals: Toluene, Copper, Nickel, Chromium and 4 more. Reports carcinogens. 73,420 lbs released over 5 years.
TRI facility ID 16365SPRRT1818P (U.S. EPA Toxics Release Inventory)
Severity 8.2
Ellwood National Forge Co, Irvine
Toxic chemical release facility (TRI). Chemicals: Ammonia, Chromium, Nickel, Copper and 3 more. Reports carcinogens. 17,839 lbs released over 5 years.
TRI facility ID 16329NTNLF1FRON (U.S. EPA Toxics Release Inventory)
Severity 7.8
United Refining Co/Warren Plt, Warren
Major air pollution source. Penalties $67,129.
EPA FRS registry ID 110043815690 (U.S. EPA ECHO) Agency record
Severity 7.5
United Refining Co/Warren Plt, Warren
Large hazardous waste generator. Penalties $67,129.
EPA FRS registry ID 110043815690 (U.S. EPA ECHO) Agency record
Severity 7
United Refining Co/Warren Plt, Warren
NPDES wastewater discharge permit. Penalties $67,129.
EPA FRS registry ID 110043815690 (U.S. EPA ECHO) Agency record
Severity 7
Ellwood Natl Forge, Irvine
TRI reporting facility.
EPA FRS registry ID 110000331374 (U.S. EPA ECHO) Agency record
Severity 6.6
United Refining Co/Warren Plt, Warren
Large greenhouse gas emitter. Penalties $67,129.
EPA FRS registry ID 110043815690 (U.S. EPA ECHO) Agency record
Severity 6.5
Mauser Usa Llc Warren Facility, Warren
Toxic chemical release facility (TRI). Chemicals: Certain glycol ethers. 31,211 lbs released over 5 years.
TRI facility ID 16365RXNRD304MA (U.S. EPA Toxics Release Inventory)
Severity 6.4
Superior Tire & Rubber/Warren, Warren
TRI reporting facility.
EPA FRS registry ID 110000331515 (U.S. EPA ECHO) Agency record
Severity 6.4
West Penn Oil, Warren
TRI reporting facility.
EPA FRS registry ID 110010983864 (U.S. EPA ECHO) Agency record
Severity 6.3
West Penn Oil Co.,Inc.130130, Warren
Toxic chemical release facility (TRI). Chemicals: Certain glycol ethers, Methanol, 1,2,4-Trimethylbenzene, Xylene (mixed isomers). 3,240 lbs released over 5 years.
TRI facility ID 16365WSTPN1425M (U.S. EPA Toxics Release Inventory)
Severity 5.7
Ellwood National Forge Warren Div, Warren
Toxic chemical release facility (TRI). Chemicals: Nickel, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Nickel And Nickel Compounds. Reports carcinogens. 4 lbs released over 5 years.
TRI facility ID 16365GRNDV145FU (U.S. EPA Toxics Release Inventory)
Severity 5
Mauser Usa Llc/Warren Plt, Warren
Large hazardous waste generator. Penalties $1,000.
EPA FRS registry ID 110042273072 (U.S. EPA ECHO) Agency record
Severity 5
Reliant Energy Warren Station, Warren
Major air pollution source.
EPA FRS registry ID 110000331524 (U.S. EPA ECHO) Agency record
Severity 4.8
Wilderness Mhp, Warren
NPDES wastewater discharge permit. Penalties $1,800.
EPA FRS registry ID 110010207276 (U.S. EPA ECHO) Agency record
Severity 4.8
WARREN OVERLOOK
EPA air quality monitor.
Record ID 421230004 (U.S. EPA AirData)
Severity 4.7
Ellwood Natl Forge, Irvine
Major air pollution source.
EPA FRS registry ID 110000331374 (U.S. EPA ECHO) Agency record
Severity 4.5
Sheffield Twp Stp, Sheffield
NPDES wastewater discharge permit.
EPA FRS registry ID 110000964261 (U.S. EPA ECHO) Agency record
Severity 4.5
Weiler Rd Srstp, Warren
NPDES wastewater discharge permit.
EPA FRS registry ID 110070675070 (U.S. EPA ECHO) Agency record
Severity 4.5
Osram Sylvania Inc, Warren
Toxic chemical release facility (TRI). Chemicals: Nickel, Chromium, Copper. Reports carcinogens.
TRI facility ID 16365GTPRD816LE (U.S. EPA Toxics Release Inventory)
Severity 4.5
Grand Valley Manufacturing - Warren Plant, Warren
TRI reporting facility.
EPA FRS registry ID 110025330988 (U.S. EPA ECHO) Agency record
Severity 4.3
Reliant Energy Warren Station, Warren
NPDES wastewater discharge permit.
EPA FRS registry ID 110000331524 (U.S. EPA ECHO) Agency record
Severity 4.3
Warren City Wwtp, Warren
NPDES wastewater discharge permit.
EPA FRS registry ID 110039837692 (U.S. EPA ECHO) Agency record
Severity 4.3

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 Warren 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 Warren 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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