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Somervell County, Texas: environmental and disease records

Cancer mortality in Somervell County is 148.7 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 66 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (40), Gas station (mapped facility) (8), Public airport (7). 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: 32.2024, -97.7849.

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 Somervell County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Kidney & renal pelvis	New cases	21.3	17.9	1.19x	12.1 to 36.3	2019-2023
Melanoma of the skin	New cases	27.9	23.8	1.17x	16.1 to 45.7	2019-2023
All cancer	Deaths	148.7	143.2	1.04x	121.1 to 181.6	2020-2024
All cancer	New cases	454.6	453.4	1x	402.4 to 512.2	2019-2023
Lung & bronchus	New cases	49.3	51.8	0.95x	33.9 to 70.1	2019-2023
Lung & bronchus	Deaths	25.9	30.2	0.86x	15.4 to 42	2020-2024

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 Somervell County
Measure	County	U.S. median	Difference	Unit
Premature death	7,658.5	9,842.6	-22%	years of life lost before age 75 per 100,000
Life expectancy	76.7	75.3	+2%	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	90.3	96.9	-7%	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.

Formaldehyde19.57 per million
Carbon Tetrachloride2.85 per million
Acetaldehyde1.52 per million
Benzene0.66 per million

EPA Air Quality Index

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

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit40
Gas station (mapped facility)8
Public airport7
Auto repair or body shop (mapped facility)4
Air permit holder (minor source)1
Dry cleaner (mapped facility)1
Small hazardous waste generator1
Heliport1
Landfill (mapped facility)1
Nuclear power plant1
Rail grade crossing1

Highest-severity records

The 25 records with the highest Envyrofax severity in the county, with the agency identifier to cite in a records request.

Comanche Peak, Glen Rose
Nuclear power plant.
Record ID 6145 (U.S. Energy Information Administration)
Severity 5
Comanche Peak Nuclear Power Plant, Glen Rose
NPDES wastewater discharge permit.
EPA FRS registry ID 110064645521 (U.S. EPA ECHO) Agency record
Severity 3
Barton Ranch, Nemo
NPDES wastewater discharge permit. Penalties $4,000.
EPA FRS registry ID 110071444894 (U.S. EPA ECHO) Agency record
Severity 2.5
Comanche Peak Nuclear Power Plant, Glen Rose
Small hazardous waste generator.
EPA FRS registry ID 110001143227 (U.S. EPA ECHO) Agency record
Severity 2
Four Seasons Cleaners & Laundry, Glen Rose
Dry cleaner (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID node/12153053660 (OpenStreetMap contributors) Agency record
Severity 2
Comanche Peak Spent Fuel Storage
Landfill (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1296760301 (OpenStreetMap contributors) Agency record
Severity 2
City Of Glen Rose Wwtp, Glen Rose
NPDES wastewater discharge permit.
EPA FRS registry ID 110006683507 (U.S. EPA ECHO) Agency record
Severity 1.8
Covia Holdings Cleburne Facility, Somervell County
NPDES wastewater discharge permit.
EPA FRS registry ID 110009782360 (U.S. EPA ECHO) Agency record
Severity 1.8
Riverbend Retreat Center-Plant - 1232 Cr 411b, Glen Rose
NPDES wastewater discharge permit.
EPA FRS registry ID 110052945774 (U.S. EPA ECHO) Agency record
Severity 1.8
Gch Sand & Gravel Pit 2, Rainbow
NPDES wastewater discharge permit.
EPA FRS registry ID 110071904303 (U.S. EPA ECHO) Agency record
Severity 1.8
Comanche Peak Nuclear Power Plant, Glen Rose
Air permit holder (minor source).
EPA FRS registry ID 110001143227 (U.S. EPA ECHO) Agency record
Severity 1.5
Riverbend Retreat Center, Glen Rose
NPDES wastewater discharge permit.
EPA FRS registry ID 110009778473 (U.S. EPA ECHO) Agency record
Severity 1.5
Happy Hill Farm Childrens Home, Granbury
NPDES wastewater discharge permit.
EPA FRS registry ID 110033692485 (U.S. EPA ECHO) Agency record
Severity 1.5
Unimin Texas Cleburne Plant, Cleburne
NPDES wastewater discharge permit.
EPA FRS registry ID 110037866681 (U.S. EPA ECHO) Agency record
Severity 1.5
Somervell County Wtp, Glen Rose
NPDES wastewater discharge permit.
EPA FRS registry ID 110059808301 (U.S. EPA ECHO) Agency record
Severity 1.5
Fossil Rim Wildlife Center Wwtp, Glen Rose
NPDES wastewater discharge permit.
EPA FRS registry ID 110064593373 (U.S. EPA ECHO) Agency record
Severity 1.5
Mw Ranch Site, Nemo
NPDES wastewater discharge permit.
EPA FRS registry ID 110070364718 (U.S. EPA ECHO) Agency record
Severity 1.5
Rainbow Sand And Gravel, Rainbow
NPDES wastewater discharge permit.
EPA FRS registry ID 110070365235 (U.S. EPA ECHO) Agency record
Severity 1.5
Comanche Peak Power, Glen Rose
NPDES wastewater discharge permit.
EPA FRS registry ID 110070366227 (U.S. EPA ECHO) Agency record
Severity 1.5
Gch Screening Plant 1, Rainbow
NPDES wastewater discharge permit.
EPA FRS registry ID 110070371579 (U.S. EPA ECHO) Agency record
Severity 1.5
Branham Sand & Gravel Pit, Rainbow
NPDES wastewater discharge permit.
EPA FRS registry ID 110070374711 (U.S. EPA ECHO) Agency record
Severity 1.5
Granbury Excavating Site, Rainbow
NPDES wastewater discharge permit.
EPA FRS registry ID 110070375863 (U.S. EPA ECHO) Agency record
Severity 1.5
Simpson Sand & Gravel, Nemo
NPDES wastewater discharge permit.
EPA FRS registry ID 110070376575 (U.S. EPA ECHO) Agency record
Severity 1.5
Mw Ranch Plant, Nemo
NPDES wastewater discharge permit.
EPA FRS registry ID 110070670004 (U.S. EPA ECHO) Agency record
Severity 1.5
Fm 51, Bluff Dale
NPDES wastewater discharge permit.
EPA FRS registry ID 110070876923 (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 Somervell 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 Somervell 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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