TX / county FIPS 48397 / county research

Rockwall County, Texas: environmental and disease records

Cancer mortality in Rockwall County is 141.1 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 453 regulated facilities, sites and hazards inside the county, led by NPDES wastewater discharge permit (331), Gas station (mapped facility) (41), Auto repair or body shop (mapped facility) (22). 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: 32.8989, -96.4077.

How this county ranks in Texas

View on the heat map Scan an address in this county

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 Rockwall County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Childhood cancer (under 15)	New cases	20.3	16.4	1.24x	13 to 30.4	2019-2023
Leukemia	New cases	16.9	14.5	1.17x	13.6 to 20.7	2019-2023
Pancreas	New cases	16.2	13.9	1.17x	13.1 to 19.9	2019-2023
Brain & nervous system	Deaths	5	4.4	1.14x	3.4 to 7.1	2020-2024
Pancreas	Deaths	12.7	11.3	1.12x	10 to 15.9	2020-2024
Kidney & renal pelvis	Deaths	3.8	3.4	1.12x	2.4 to 5.7	2020-2024
Kidney & renal pelvis	New cases	20	17.9	1.12x	16.5 to 24	2019-2023
Thyroid	New cases	14.5	13	1.12x	11.5 to 17.9	2019-2023
Bladder	Deaths	4.5	4.1	1.1x	2.9 to 6.8	2020-2024
Leukemia	Deaths	5.9	5.7	1.04x	4 to 8.4	2020-2024
Melanoma of the skin	New cases	23.8	23.8	1x	20 to 28.2	2019-2023
Bladder	New cases	18.6	18.7	0.99x	15 to 22.6	2019-2023
All cancer	Deaths	141.1	143.2	0.99x	131.4 to 151.2	2020-2024
All cancer	New cases	444.9	453.4	0.98x	427.8 to 462.5	2019-2023
Non-Hodgkin lymphoma	Deaths	4.7	4.8	0.98x	3 to 6.9	2020-2024
Liver & bile duct	New cases	8.3	8.7	0.95x	6.2 to 11.1	2019-2023
Brain & nervous system	New cases	5.8	6.2	0.94x	4 to 8	2019-2023
Lung & bronchus	Deaths	28.2	30.2	0.93x	24 to 33	2020-2024
Esophagus	Deaths	3.4	3.7	0.92x	2.2 to 5.2	2020-2024
Liver & bile duct	Deaths	5.7	6.6	0.86x	3.9 to 8	2020-2024
Non-Hodgkin lymphoma	New cases	15.9	18.5	0.86x	12.7 to 19.7	2019-2023
Lung & bronchus	New cases	44.5	51.8	0.86x	39 to 50.4	2019-2023
Esophagus	New cases	3.6	4.6	0.78x	2.2 to 5.4	2019-2023
Stomach	New cases	4.3	6.6	0.65x	2.8 to 6.4	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 Rockwall County
Measure	County	U.S. median	Difference	Unit
Premature death	5,797.6	9,842.6	-41%	years of life lost before age 75 per 100,000
Life expectancy	79.1	75.3	+5%	years
Child mortality	39.3	59.8	-34%	deaths under age 18 per 100,000
Infant mortality	4.3	6.2	-30%	deaths under age 1 per 1,000 live births
Injury deaths	47.4	96.9	-51%	deaths per 100,000
Drug overdose deaths	15.2	28.6	-47%	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.

Formaldehyde21.86 per million
Carbon Tetrachloride2.89 per million
Acetaldehyde1.73 per million
Ethylene Oxide0.93 per million

EPA Air Quality Index 2025

Monitored on 285 days: 276 good, 2 unhealthy for sensitive groups or worse. Median AQI 31, peak 108.

Regulated facilities, sites and hazards by type

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

NPDES wastewater discharge permit331
Gas station (mapped facility)41
Auto repair or body shop (mapped facility)22
Rail grade crossing18
Toxic chemical release facility (TRI)8
TRI reporting facility6
Small hazardous waste generator5
Air permit holder (minor source)4
Dry cleaner (mapped facility)4
Heliport4
Public airport3
Hazardous waste transporter2
Wastewater plant (mapped facility)2
EPA air quality monitor1
Crematorium (mapped facility)1
Large hazardous waste generator1

Highest-severity records

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

Channell Rockwall Texas, Rockwall
Toxic chemical release facility (TRI). Chemicals: Styrene. Reports carcinogens. 4,911 lbs released over 5 years.
TRI facility ID 7508WCHNNL17JUS (U.S. EPA Toxics Release Inventory)
Severity 7.3
Channell Rockwall Texas, Rockwall
TRI reporting facility.
EPA FRS registry ID 110069457956 (U.S. EPA ECHO) Agency record
Severity 5.9
Whitmore Manufacturing Co, Rockwall
Toxic chemical release facility (TRI). Chemicals: Zinc (fume or dust), Copper, Zinc compounds, Certain glycol ethers and 4 more. Reports carcinogens. 13 lbs released over 5 years.
TRI facility ID 75087THWHT930WH (U.S. EPA Toxics Release Inventory)
Severity 5.4
The Whitmore Manufacturing, Rockwall
TRI reporting facility. Penalties $13,472.
EPA FRS registry ID 110000456676 (U.S. EPA ECHO) Agency record
Severity 5.1
Redi-Mix - Rockwall, Rockwall
Toxic chemical release facility (TRI). Chemicals: Lead, Nitrate compounds (water dissociable; reportable only when in aqueous solution). Reports carcinogens. 5 lbs released over 5 years.
TRI facility ID 7503WRCKWL21KRI (U.S. EPA Toxics Release Inventory)
Severity 5.1
Ekj Enterprises Lp, Rockwall
Toxic chemical release facility (TRI). Chemicals: Nickel, Chromium, Manganese. Reports carcinogens.
TRI facility ID 7503WKJNTR2975D (U.S. EPA Toxics Release Inventory)
Severity 4.5
Squabble Creek Wwtp, Rockwall County
NPDES wastewater discharge permit.
EPA FRS registry ID 110002044252 (U.S. EPA ECHO) Agency record
Severity 4
Rockwall Plant, Rockwall
TRI reporting facility.
EPA FRS registry ID 110069258868 (U.S. EPA ECHO) Agency record
Severity 4
Ekj Enterprises Lp, Rockwall
TRI reporting facility.
EPA FRS registry ID 110070070286 (U.S. EPA ECHO) Agency record
Severity 4
Lattimore Materials Corp - Rockwall Rm, Rockwall
TRI reporting facility.
EPA FRS registry ID 110070244746 (U.S. EPA ECHO) Agency record
Severity 4
Chryso, Inc., Royse City
TRI reporting facility.
EPA FRS registry ID 110071283925 (U.S. EPA ECHO) Agency record
Severity 4
Buffalo Creek Wastewater Treatment Plant, Rockwall
NPDES wastewater discharge permit.
EPA FRS registry ID 110033536706 (U.S. EPA ECHO) Agency record
Severity 3.5
Channell Rockwall Texas, Rockwall
Large hazardous waste generator.
EPA FRS registry ID 110069457956 (U.S. EPA ECHO) Agency record
Severity 3.5
Poetry Village Wwtp, City Of Royse City
NPDES wastewater discharge permit.
EPA FRS registry ID 110070231033 (U.S. EPA ECHO) Agency record
Severity 3.5
Holcim-Sor Inc.- Rockwall Rm, Rockwall
Toxic chemical release facility (TRI). Chemicals: Lead And Lead Compounds, Lead compounds.
TRI facility ID 7503WLTTMR264ST (U.S. EPA Toxics Release Inventory)
Severity 3
Holcim - Sor Inc. - Royse City Rmx, Royse City
Toxic chemical release facility (TRI). Chemicals: Lead And Lead Compounds, Lead compounds.
TRI facility ID 7518WLTTMR22ECU (U.S. EPA Toxics Release Inventory)
Severity 3
Chryso Inc, Rockwall
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
TRI facility ID 7503WCHRYS1611S (U.S. EPA Toxics Release Inventory)
Severity 3
Chryso Inc., Royse City
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
TRI facility ID 7518WCHRYS3962R (U.S. EPA Toxics Release Inventory)
Severity 3
The Whitmore Manufacturing, Rockwall
Small hazardous waste generator. Penalties $13,472.
EPA FRS registry ID 110000456676 (U.S. EPA ECHO) Agency record
Severity 2.5
The Whitmore Manufacturing, Rockwall
NPDES wastewater discharge permit. Penalties $13,472.
EPA FRS registry ID 110000456676 (U.S. EPA ECHO) Agency record
Severity 2.5
Home Depot Stor 531, Rockwall
Small hazardous waste generator. Penalties $285,363.
EPA FRS registry ID 110020120983 (U.S. EPA ECHO) Agency record
Severity 2.5
Lowes Of Rockwall 610, Rockwall
Small hazardous waste generator. Penalties $141,730.
EPA FRS registry ID 110070225294 (U.S. EPA ECHO) Agency record
Severity 2.5
Great Escapes At Elgin Wwtp, City Of Elgin
NPDES wastewater discharge permit.
EPA FRS registry ID 110070554345 (U.S. EPA ECHO) Agency record
Severity 2.3
Channell Rockwall Texas, Rockwall
NPDES wastewater discharge permit.
EPA FRS registry ID 110069457956 (U.S. EPA ECHO) Agency record
Severity 2
Ralph M Hall/Rockwall Muni, Rockwall
Public airport. O.
Record ID F46 (FAA / U.S. DOT)
Severity 2

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 Rockwall 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 Rockwall 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.

Scan an address in Rockwall County View on the heat map All Texas counties