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St. Mary Parish, Louisiana: environmental and disease records

Cancer mortality in St. Mary Parish is 175.7 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Pancreas deaths at 1.6 times the U.S. rate and Liver & bile duct deaths at 1.5 times the U.S. rate. Federal databases place 1,030 regulated facilities, sites and hazards inside the county, led by Industrial wastewater discharge (327), NPDES wastewater discharge permit (183), Air permit holder (minor source) (153). 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: 29.7182, -91.3725.

How this county ranks in Louisiana

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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 St. Mary Parish compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Pancreas	Deaths	17.9	11.3	1.58xSignificant	13.4 to 23.5	2020-2024
Liver & bile duct	Deaths	10	6.6	1.52xSignificant	7 to 14.2	2020-2024
Stomach	New cases	9.9	6.6	1.5x	6.6 to 14.4	2019-2023
Lung & bronchus	Deaths	44.6	30.2	1.48xSignificant	37.7 to 52.6	2020-2024
Kidney & renal pelvis	New cases	25.8	17.9	1.44xSignificant	20.2 to 32.5	2019-2023
Lung & bronchus	New cases	70.3	51.8	1.36xSignificant	61.6 to 80	2019-2023
Pancreas	New cases	17.9	13.9	1.29x	13.4 to 23.4	2019-2023
All cancer	Deaths	175.7	143.2	1.23xSignificant	161.3 to 191.3	2020-2024
Bladder	New cases	21.7	18.7	1.16x	16.8 to 27.7	2019-2023
Liver & bile duct	New cases	9.8	8.7	1.13x	6.7 to 13.9	2019-2023
All cancer	New cases	509.5	453.4	1.12xSignificant	484 to 536.1	2019-2023
Brain & nervous system	New cases	6.7	6.2	1.08x	3.8 to 10.9	2019-2023
Leukemia	New cases	15.1	14.5	1.04x	10.9 to 20.4	2019-2023
Thyroid	New cases	13.4	13	1.03x	9 to 19.2	2019-2023
Leukemia	Deaths	5.8	5.7	1.02x	3.5 to 9.3	2020-2024
Non-Hodgkin lymphoma	New cases	18.4	18.5	0.99x	13.7 to 24.1	2019-2023
Melanoma of the skin	New cases	12.1	23.8	0.51x	8.3 to 17	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 St. Mary Parish
Measure	County	U.S. median	Difference	Unit
Premature death	13,601.4	9,842.6	+38%	years of life lost before age 75 per 100,000
Life expectancy	71.8	75.3	-5%	years
Child mortality	83.6	59.8	+40%	deaths under age 18 per 100,000
Infant mortality	5.7	6.2	-8%	deaths under age 1 per 1,000 live births
Injury deaths	107.6	96.9	+11%	deaths per 100,000
Drug overdose deaths	48.5	28.6	+70%	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.

Formaldehyde20.59 per million
Carbon Tetrachloride2.91 per million
Acetaldehyde1.63 per million
Ethylene Oxide1.45 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

1,030 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

Industrial wastewater discharge327
NPDES wastewater discharge permit183
Air permit holder (minor source)153
Rail grade crossing115
Small hazardous waste generator74
Hazardous waste transporter64
Large hazardous waste generator24
Major air pollution source19
Toxic chemical release facility (TRI)17
Gas station (mapped facility)13
TRI reporting facility13
Large greenhouse gas emitter8
Brownfield property6
Wastewater plant (mapped facility)5
Heliport2
Gas power plant2
Other power plant2
Commercial airport1
Landfill (mapped facility)1
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.

Cabot Corp Canal Plant, Centerville
Toxic chemical release facility (TRI). Chemicals: Hydrogen sulfide, Carbon disulfide, 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) and 4 more. Reports carcinogens. 2,762,743 lbs released over 5 years.
TRI facility ID 70583CBTCRSTATE (U.S. EPA Toxics Release Inventory)
Severity 9.4
Columbian Chemicals Company (North Bend Carbon Black Plant), Centerville
TRI reporting facility.
EPA FRS registry ID 110000449337 (U.S. EPA ECHO) Agency record
Severity 9.1
Bollinger Marine Fabricators Llc, Amelia
Toxic chemical release facility (TRI). Chemicals: Propylene, Xylene (mixed isomers), n-Butyl alcohol, Ethylbenzene and 4 more. Reports carcinogens. 681,012 lbs released over 5 years.
TRI facility ID 70340MCDRMDEGRA (U.S. EPA Toxics Release Inventory)
Severity 9
Orion Engineered Carbons-Ivanhoe Carbon Black Plant, Franklin
Toxic chemical release facility (TRI). Chemicals: Hydrogen sulfide, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Carbon disulfide, Ammonia and 4 more. Reports carcinogens. 367,063 lbs released over 5 years.
TRI facility ID 70562SHLND2MILE (U.S. EPA Toxics Release Inventory)
Severity 8.8
Birla Carbon Usa Inc, Centerville
Toxic chemical release facility (TRI). Chemicals: Hydrogen sulfide, Carbon disulfide, Carbonyl sulfide, Polycyclic aromatic compounds and 4 more. Reports carcinogens. 172,734 lbs released over 5 years.
TRI facility ID 70522CLMBNHIGHW (U.S. EPA Toxics Release Inventory)
Severity 8.5
Conrad Shipyard Llc (Deepwater Yard), Morgan City
Toxic chemical release facility (TRI). Chemicals: Xylene (mixed isomers), n-Butyl alcohol, Toluene, Copper compounds and 3 more. Reports carcinogens. 163,183 lbs released over 5 years.
TRI facility ID 70381CNRDS29DUH (U.S. EPA Toxics Release Inventory)
Severity 8.5
Pelican Processing Plant, Patterson
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Toluene, Xylene (mixed isomers), Benzene and 4 more. Reports carcinogens. 11,533 lbs released over 5 years.
TRI facility ID 7039WPLCNP369HW (U.S. EPA Toxics Release Inventory)
Severity 7.6
Conrad Shipyard Llc - Deepwater Shipyard, Amelia
TRI reporting facility. Penalties $13,000.
EPA FRS registry ID 110025317280 (U.S. EPA ECHO) Agency record
Severity 7.4
Cabot Corporation - Canal Plant, Franklin
TRI reporting facility.
EPA FRS registry ID 110012818442 (U.S. EPA ECHO) Agency record
Severity 7.4
Enterprise Gas Processing Llc - Neptune Gas Plant, Centerville
Toxic chemical release facility (TRI). Chemicals: n-Hexane, Benzene, Ethylbenzene, Toluene. Reports carcinogens. 4,877 lbs released over 5 years.
TRI facility ID 7052WNTRPR12TRU (U.S. EPA Toxics Release Inventory)
Severity 7.3
Cameron International Corp, Bayou Vista
Toxic chemical release facility (TRI). Chemicals: Ethylene glycol, Manganese, Chromium, Nickel and 1 more. Reports carcinogens. 3,279 lbs released over 5 years.
TRI facility ID 70380CMRNN37HWY (U.S. EPA Toxics Release Inventory)
Severity 7.2
Columbian Chemicals Company (North Bend Carbon Black Plant), Centerville
Major air pollution source.
EPA FRS registry ID 110000449337 (U.S. EPA ECHO) Agency record
Severity 6.5
Orion Engineered Carbons Llc - Ivanhoe Carbon Black Plant, Franklin
Major air pollution source.
EPA FRS registry ID 110071499254 (U.S. EPA ECHO) Agency record
Severity 6.5
New Industries Llc, Morgan City
Toxic chemical release facility (TRI). Chemicals: Manganese, Zinc compounds, Copper compounds, Lead compounds and 3 more. Reports carcinogens. 343 lbs released over 5 years.
TRI facility ID 70380NWFFS6032R (U.S. EPA Toxics Release Inventory)
Severity 6.4
Bollinger Amelia Operations Llc - Amelia Operations, Amelia
TRI reporting facility.
EPA FRS registry ID 110000449159 (U.S. EPA ECHO) Agency record
Severity 6.3
Orion Engineered Carbons-Ivanhoe Carbon Black Plant, Franklin
TRI reporting facility.
EPA FRS registry ID 110022406662 (U.S. EPA ECHO) Agency record
Severity 6.2
Columbian Chemicals Company (North Bend Carbon Black Plant), Centerville
NPDES wastewater discharge permit.
EPA FRS registry ID 110000449337 (U.S. EPA ECHO) Agency record
Severity 6
St Mary Parish Government - Harold J Babe Landry Landfill, Berwick
Major air pollution source.
EPA FRS registry ID 110011155034 (U.S. EPA ECHO) Agency record
Severity 6
Azz Galvanizing - Morgan City, Morgan City
Toxic chemical release facility (TRI). Chemicals: Zinc compounds, Lead. Reports carcinogens. 88 lbs released over 5 years.
TRI facility ID 70380STMRYCORNE (U.S. EPA Toxics Release Inventory)
Severity 6
New Industries Llc, Morgan City
TRI reporting facility. Penalties $10,000.
EPA FRS registry ID 110001275478 (U.S. EPA ECHO) Agency record
Severity 6
Conrad Shipyard Llc (Main Yard), Morgan City
Toxic chemical release facility (TRI). Chemicals: Manganese, Nickel. Reports carcinogens. 58 lbs released over 5 years.
TRI facility ID 70380CNRDN1501F (U.S. EPA Toxics Release Inventory)
Severity 5.9
Louisiana Custom Cote Co, Morgan City
Large hazardous waste generator.
EPA FRS registry ID 110001142790 (U.S. EPA ECHO) Agency record
Severity 5.8
Pelican Processing Plant, Patterson
TRI reporting facility.
EPA FRS registry ID 110043792376 (U.S. EPA ECHO) Agency record
Severity 5.7
Columbian Chemicals Company (North Bend Carbon Black Plant), Centerville
Large greenhouse gas emitter.
EPA FRS registry ID 110000449337 (U.S. EPA ECHO) Agency record
Severity 5.5
Crown Oilfield Services Inc - Patterson Facility, Bayou Vista
Small hazardous waste generator. Penalties $36,992.
EPA FRS registry ID 110006024505 (U.S. EPA ECHO) Agency record
Severity 5.5

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 St. Mary Parish

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