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Simpson County, Mississippi: environmental and disease records

Cancer mortality in Simpson County is 162.3 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Lung & bronchus deaths at 1.4 times the U.S. rate. Federal databases place 113 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (55), Rail grade crossing (37), Gas station (mapped facility) (10). 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: 31.9016, -89.9082.

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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 Simpson County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Liver & bile duct	Deaths	9.8	6.6	1.48x	5.7 to 16	2020-2024
Liver & bile duct	New cases	12.5	8.7	1.44x	7.9 to 19.3	2019-2023
Lung & bronchus	New cases	74	51.8	1.43xSignificant	62.1 to 87.9	2019-2023
Lung & bronchus	Deaths	41.4	30.2	1.37xSignificant	32.6 to 52.1	2020-2024
Kidney & renal pelvis	New cases	23.7	17.9	1.32x	16.7 to 32.7	2019-2023
Pancreas	New cases	17.4	13.9	1.25x	11.5 to 25.5	2019-2023
Pancreas	Deaths	14	11.3	1.24x	8.9 to 21.2	2020-2024
All cancer	Deaths	162.3	143.2	1.13xSignificant	143.6 to 183	2020-2024
Non-Hodgkin lymphoma	New cases	20.4	18.5	1.1x	13.7 to 29.4	2019-2023
All cancer	New cases	495.7	453.4	1.09xSignificant	461.9 to 531.4	2019-2023
Leukemia	New cases	15.5	14.5	1.07x	9.6 to 23.7	2019-2023
Thyroid	New cases	13.1	13	1.01x	7.7 to 21	2019-2023
Bladder	New cases	14.6	18.7	0.78x	9.4 to 22	2019-2023
Melanoma of the skin	New cases	16.3	23.8	0.68x	10.1 to 24.9	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 Simpson County
Measure	County	U.S. median	Difference	Unit
Premature death	15,238.4	9,842.6	+55%	years of life lost before age 75 per 100,000
Life expectancy	70.6	75.3	-6%	years
Child mortality	93.6	59.8	+57%	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	107.3	96.9	+11%	deaths per 100,000
Drug overdose deaths	20.5	28.6	-28%	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.

Formaldehyde24.12 per million
Carbon Tetrachloride2.9 per million
Acetaldehyde2.33 per million
Pahpom0.61 per million

EPA Air Quality Index

No EPA air quality monitor reports daily AQI for this county.

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit55
Rail grade crossing37
Gas station (mapped facility)10
Air permit holder (minor source)3
Major air pollution source2
Wastewater plant (mapped facility)2
Public airport1
Brownfield property1
TRI reporting facility1
Toxic chemical release facility (TRI)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.

High Place The, Florence
NPDES wastewater discharge permit.
EPA FRS registry ID 110011054214 (U.S. EPA ECHO) Agency record
Severity 4.3
City Of Mendenhall, Mendenhall
NPDES wastewater discharge permit.
EPA FRS registry ID 110012984191 (U.S. EPA ECHO) Agency record
Severity 4.3
Braxton Nanofiltration Plant, Braxton
NPDES wastewater discharge permit.
EPA FRS registry ID 110071407987 (U.S. EPA ECHO) Agency record
Severity 4.3
Tyson Foods Inc, Magee Feedmill, Magee
TRI reporting facility.
EPA FRS registry ID 110008500817 (U.S. EPA ECHO) Agency record
Severity 4
Mississippi Hub Llc, Natural Gas Transmi, Mount Olive
Major air pollution source.
EPA FRS registry ID 110038355785 (U.S. EPA ECHO) Agency record
Severity 3.8
Copiah Lincoln Community College, Mendenhall
NPDES wastewater discharge permit.
EPA FRS registry ID 110037507588 (U.S. EPA ECHO) Agency record
Severity 3.5
Gulf South Pipeline Company Lp, Harrisville Compressor Station, Harrisville
Major air pollution source.
EPA FRS registry ID 110038353509 (U.S. EPA ECHO) Agency record
Severity 3.5
Mississippi Hub Llc, Natural Gas Transmi, Mount Olive
NPDES wastewater discharge permit.
EPA FRS registry ID 110038355785 (U.S. EPA ECHO) Agency record
Severity 3.3
Magee Preservation Project Site, Magee
Brownfield property.
EPA FRS registry ID 110071976678 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Tyson Farms Magee Ms Feed Mill, Magee
Toxic chemical release facility (TRI). Chemicals: Copper compounds, Manganese compounds, Zinc compounds.
TRI facility ID 39111MCCRTINDUS (U.S. EPA Toxics Release Inventory)
Severity 3
Strong River Construction, Airport Road, Magee
NPDES wastewater discharge permit. Penalties $6,000.
EPA FRS registry ID 110071645595 (U.S. EPA ECHO) Agency record
Severity 2.5
Magee Potw, Magee
NPDES wastewater discharge permit.
EPA FRS registry ID 110002307192 (U.S. EPA ECHO) Agency record
Severity 2.3
D Lo Potw, D Lo
NPDES wastewater discharge permit.
EPA FRS registry ID 110008515062 (U.S. EPA ECHO) Agency record
Severity 2.3
Boswell Regional Center, Sanatorium
NPDES wastewater discharge permit.
EPA FRS registry ID 110008518657 (U.S. EPA ECHO) Agency record
Severity 2
Simpson Co School District, Pinola Head Start Center, Pinola
NPDES wastewater discharge permit.
EPA FRS registry ID 110008520822 (U.S. EPA ECHO) Agency record
Severity 2
Magee Muni, Magee
Public airport. O.
Record ID 17M (FAA / U.S. DOT)
Severity 2
Wastewater Plant
Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1503481903 (OpenStreetMap contributors) Agency record
Severity 2
Wastewater Plant
Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1503482332 (OpenStreetMap contributors) Agency record
Severity 2
Simpson County School District, Simpson Central School, Pinola
NPDES wastewater discharge permit.
EPA FRS registry ID 110008517989 (U.S. EPA ECHO) Agency record
Severity 1.8
Polks Meat Products Inc, Magee Plant, Magee
NPDES wastewater discharge permit.
EPA FRS registry ID 110009865253 (U.S. EPA ECHO) Agency record
Severity 1.8
Howard Industries Inc, Mendenhall
NPDES wastewater discharge permit.
EPA FRS registry ID 110017890335 (U.S. EPA ECHO) Agency record
Severity 1.8
Lexington Concrete And Block Company, Inc., Mendenhall
NPDES wastewater discharge permit.
EPA FRS registry ID 110044215881 (U.S. EPA ECHO) Agency record
Severity 1.8
First Presbyterian Church, Twin Lakes Conference Center, Florence
NPDES wastewater discharge permit.
EPA FRS registry ID 110002308495 (U.S. EPA ECHO) Agency record
Severity 1.5
Tyson Foods Inc, Magee Feedmill, Magee
NPDES wastewater discharge permit.
EPA FRS registry ID 110008500817 (U.S. EPA ECHO) Agency record
Severity 1.5
Pantry Inc, The, Store Number 3397 Dba Big K, Magee
NPDES wastewater discharge permit.
EPA FRS registry ID 110008520564 (U.S. EPA ECHO) Agency record
Severity 1.5

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 Simpson County

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