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Zavala County, Texas: environmental and disease records

Cancer mortality in Zavala County is 197.6 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. Federal databases place 29 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (11), Public airport (6), Air permit holder (minor source) (4). 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: 28.8688, -99.7623.

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 Zavala County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Liver & bile duct	New cases	32.8	8.7	3.77xSignificant	19 to 53.1	2019-2023
All cancer	Deaths	197.6	143.2	1.38xSignificant	159.4 to 242.2	2020-2024
All cancer	New cases	481	453.4	1.06x	421.4 to 546.8	2019-2023
Lung & bronchus	New cases	35.7	51.8	0.69x	21.3 to 56.4	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 Zavala County
Measure	County	U.S. median	Difference	Unit
Premature death	15,792.1	9,842.6	+60%	years of life lost before age 75 per 100,000
Life expectancy	69.9	75.3	-7%	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	82.5	96.9	-15%	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: 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.

Formaldehyde18.79 per million
Carbon Tetrachloride2.84 per million
Acetaldehyde1.15 per million
Benzene0.75 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit11
Public airport6
Air permit holder (minor source)4
Gas station (mapped facility)3
Major air pollution source2
Hazardous waste transporter2
Wastewater plant (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.

City Of Crystal City, Crystal City
NPDES wastewater discharge permit. Penalties $45,356.
EPA FRS registry ID 110034538542 (U.S. EPA ECHO) Agency record
Severity 5.5
Batesville Wsc-Plant - Well A, Batesville
NPDES wastewater discharge permit.
EPA FRS registry ID 110012714063 (U.S. EPA ECHO) Agency record
Severity 4.5
Km West Central Facility, Batesville
Major air pollution source.
EPA FRS registry ID 110070049967 (U.S. EPA ECHO) Agency record
Severity 3.5
Traylor North No 1 Central Facility, Batesville
Major air pollution source.
EPA FRS registry ID 110070616758 (U.S. EPA ECHO) Agency record
Severity 3.5
Wastewater Plant
Wastewater plant (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/822462014 (OpenStreetMap contributors) Agency record
Severity 2
Chula Vista Wwtp, Crystal City
NPDES wastewater discharge permit.
EPA FRS registry ID 110010921324 (U.S. EPA ECHO) Agency record
Severity 1.8
Del Monte Foods Crystal City Plant 250, Crystal City
NPDES wastewater discharge permit.
EPA FRS registry ID 110002135154 (U.S. EPA ECHO) Agency record
Severity 1.5
Live Oak Feedlot, Batesville
NPDES wastewater discharge permit.
EPA FRS registry ID 110022280627 (U.S. EPA ECHO) Agency record
Severity 1.5
Nueces Sand And Gravel, La Pryor
NPDES wastewater discharge permit.
EPA FRS registry ID 110070189897 (U.S. EPA ECHO) Agency record
Severity 1.5
Crystal City Saltwater Disposal Facility, Crystal City
NPDES wastewater discharge permit.
EPA FRS registry ID 110070362739 (U.S. EPA ECHO) Agency record
Severity 1.5
Torres Ready Mix, Crystal City
NPDES wastewater discharge permit.
EPA FRS registry ID 110070377248 (U.S. EPA ECHO) Agency record
Severity 1.5
La Pryor Pick A Part, La Pryor
NPDES wastewater discharge permit.
EPA FRS registry ID 110072156438 (U.S. EPA ECHO) Agency record
Severity 1.5
Nueces Sand And Gravel, La Pryor
NPDES wastewater discharge permit.
EPA FRS registry ID 110072248281 (U.S. EPA ECHO) Agency record
Severity 1.5
Flying Kite Solar, La Pryor
NPDES wastewater discharge permit.
EPA FRS registry ID 110072255294 (U.S. EPA ECHO) Agency record
Severity 1.5
Silgan Containers Manufacturing Corp, Crystal City
Air permit holder (minor source).
EPA FRS registry ID 110001870912 (U.S. EPA ECHO) Agency record
Severity 1
Del Monte Foods Crystal City Plant 250, Crystal City
Hazardous waste transporter.
EPA FRS registry ID 110002135154 (U.S. EPA ECHO) Agency record
Severity 1
Northern Natural Gas Company, La Pryor
Air permit holder (minor source).
EPA FRS registry ID 110007193839 (U.S. EPA ECHO) Agency record
Severity 1
Texas Tar Sands Ltd, La Pryor
Air permit holder (minor source).
EPA FRS registry ID 110007197719 (U.S. EPA ECHO) Agency record
Severity 1
S And L Oil Field Services, La Pryor
Hazardous waste transporter.
EPA FRS registry ID 110008170111 (U.S. EPA ECHO) Agency record
Severity 1
Bracero Station, Lapryor
Air permit holder (minor source).
EPA FRS registry ID 110033499177 (U.S. EPA ECHO) Agency record
Severity 1
Batesville Exxon
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/2624171369 (OpenStreetMap contributors) Agency record
Severity 1
Batesville Valero
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/2624171370 (OpenStreetMap contributors) Agency record
Severity 1
Valero, La Pryor
Gas station (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1311732268 (OpenStreetMap contributors) Agency record
Severity 1
Loma De Cometa, Cometa
Public airport. O.
Record ID 66TX (FAA / U.S. DOT)
Severity 0.5
Chaparrosa Ranch, La Pryor
Public airport. O.
Record ID 72TE (FAA / U.S. DOT)
Severity 0.5

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 Zavala 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 Zavala 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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