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Dimmit County, Texas: environmental and disease records

Cancer mortality in Dimmit County is 195 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Liver & bile duct deaths at 5.2 times the U.S. rate. Federal databases place 69 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (27), Major air pollution source (18), Public airport (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: 28.3881, -99.7546.

How this county ranks in Texas

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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 Dimmit County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Liver & bile duct	Deaths	34.1	6.6	5.17xSignificant	20.2 to 54.6	2020-2024
Liver & bile duct	New cases	39.3	8.7	4.52xSignificant	23.8 to 61.4	2019-2023
Kidney & renal pelvis	New cases	47.3	17.9	2.64xSignificant	28.4 to 73.7	2019-2023
All cancer	Deaths	195	143.2	1.36xSignificant	158.2 to 238.1	2020-2024
All cancer	New cases	503.7	453.4	1.11x	441.2 to 572.8	2019-2023
Lung & bronchus	Deaths	31.4	30.2	1.04x	18.2 to 51.1	2020-2024
Lung & bronchus	New cases	36.8	51.8	0.71x	21.9 to 58.3	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 Dimmit County
Measure	County	U.S. median	Difference	Unit
Premature death	14,362.3	9,842.6	+46%	years of life lost before age 75 per 100,000
Life expectancy	71	75.3	-6%	years
Child mortality	n/a	59.8	n/a	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	78.4	96.9	-19%	deaths per 100,000
Drug overdose deaths	n/a	28.6	n/a	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.

Formaldehyde20.18 per million
Carbon Tetrachloride2.84 per million
Acetaldehyde1.14 per million
Benzene1.06 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit27
Major air pollution source18
Public airport10
Gas station (mapped facility)6
Air permit holder (minor source)2
Commercial airport1
Brownfield property1
Large hazardous waste generator1
Hazardous waste transporter1
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.

Us Customs Service Firing Range #Tx0156, Carrizo Springs
Toxic chemical release facility (TRI). Chemicals: Lead. Reports carcinogens. 15,024 lbs released over 5 years.
TRI facility ID 78834SCSTM1868E (U.S. EPA Toxics Release Inventory)
Severity 7.7
U.S. Customs Service Firing Range, Carrizo Springs
TRI reporting facility.
EPA FRS registry ID 110020515511 (U.S. EPA ECHO) Agency record
Severity 5.6
Catarina 1, Catarina
NPDES wastewater discharge permit. Penalties $8,750.
EPA FRS registry ID 110071346829 (U.S. EPA ECHO) Agency record
Severity 5.3
City Of Carrizo Springs Wwtp, Carrizo Springs
NPDES wastewater discharge permit. Penalties $5,062.
EPA FRS registry ID 110002051038 (U.S. EPA ECHO) Agency record
Severity 4
City Of Asherton Wwtp, Asherton
NPDES wastewater discharge permit.
EPA FRS registry ID 110010922779 (U.S. EPA ECHO) Agency record
Severity 3.8
Dimmit County Compressor Station, Carrizo Springs
Major air pollution source.
EPA FRS registry ID 110007195837 (U.S. EPA ECHO) Agency record
Severity 3.5
Carrizo Springs Compressor Station, Carrizo Springs
Major air pollution source.
EPA FRS registry ID 110007206610 (U.S. EPA ECHO) Agency record
Severity 3.5
City Of Big Wells Wwtp, Big Wells
NPDES wastewater discharge permit.
EPA FRS registry ID 110010131106 (U.S. EPA ECHO) Agency record
Severity 3.5
Brisco Road Compressor Station, Catarina
Major air pollution source.
EPA FRS registry ID 110033377655 (U.S. EPA ECHO) Agency record
Severity 3.5
Palafox Joint Venture Cs, Catarina
Major air pollution source.
EPA FRS registry ID 110043515675 (U.S. EPA ECHO) Agency record
Severity 3.5
Faith Bonita Compressor Facility, Asherton
Major air pollution source.
EPA FRS registry ID 110054890962 (U.S. EPA ECHO) Agency record
Severity 3.5
Stumberg Cgf, Catarina
Major air pollution source.
EPA FRS registry ID 110064844584 (U.S. EPA ECHO) Agency record
Severity 3.5
Stanley Worthey Ohf Cdp, Catarina
Major air pollution source.
EPA FRS registry ID 110064846519 (U.S. EPA ECHO) Agency record
Severity 3.5
Briscoe Cochina East Cgf D And Ohf, Cotulla
Major air pollution source.
EPA FRS registry ID 110064847037 (U.S. EPA ECHO) Agency record
Severity 3.5
Cat Ranch Cgf, Catarina
Major air pollution source.
EPA FRS registry ID 110064847643 (U.S. EPA ECHO) Agency record
Severity 3.5
G2lt Cdp, Catarina
Major air pollution source.
EPA FRS registry ID 110064847732 (U.S. EPA ECHO) Agency record
Severity 3.5
B1lte Cdp, Catarina
Major air pollution source.
EPA FRS registry ID 110067246126 (U.S. EPA ECHO) Agency record
Severity 3.5
Cmww A Compressor Station, Carrizo Springs
Major air pollution source.
EPA FRS registry ID 110070551364 (U.S. EPA ECHO) Agency record
Severity 3.5
Bl15 Cdp, Catarina
Major air pollution source.
EPA FRS registry ID 110071251445 (U.S. EPA ECHO) Agency record
Severity 3.5
B3lte Cdp, Catarina
Major air pollution source.
EPA FRS registry ID 110071335005 (U.S. EPA ECHO) Agency record
Severity 3.5
B3ltw Cdp, Catarina
Major air pollution source.
EPA FRS registry ID 110071356738 (U.S. EPA ECHO) Agency record
Severity 3.5
Briscoe A1 Export Site, Catarina
Major air pollution source.
EPA FRS registry ID 110071883559 (U.S. EPA ECHO) Agency record
Severity 3.5
B2ltw Cdp, Catarina
Major air pollution source.
EPA FRS registry ID 110071957978 (U.S. EPA ECHO) Agency record
Severity 3.5
B4ltw Cdp, Catarina
Major air pollution source.
EPA FRS registry ID 110072102065 (U.S. EPA ECHO) Agency record
Severity 3.5
Railroad Property, Carrizo Springs
Brownfield property.
EPA FRS registry ID 110038743633 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 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 Dimmit County

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