Rockwall, TX
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Rockwall in Texas · Population: 116,931
TRI sites such as Channell Rockwall Texas; Whitmore Manufacturing Co; Redi-Mix - Rockwall; SDWIS systems such as CITY OF ROCKWALL; CITY OF FATE; CITY OF ROYSE CITY anchor Rockwall, TX's EPA extract. Derived burden score 30/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Rockwall include CITY OF ROYSE CITY; R C H WSC; MOUNT ZION WSC, while Channell Rockwall Texas leads reported TRI pounds among local Form R filers. AQS median AQI 34 / peak 126 in 2024.
Burden score 30/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Rockwall -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Rockwall, TX: EPA TRI 2023 reporting year
Same facilities, both years
+120.9%
6 facilities that filed in 2022 and 2023
Whole inventory
+120.9%
963 lb → 2.1 thousand lb, every facility that filed
- Rockwall, TX's total reported releases rose from 963 lb in 2022 to 2.1 thousand lb in 2023, based on EPA TRI filings.
- Rockwall, TX's off-site transfers rose from 0 lb in 2022 to 1.2 thousand lb in 2023, based on EPA TRI filings.
- Rockwall, TX's chemicals reported fell from 11 in 2022 to 10 in 2023, based on EPA TRI filings.
- Rockwall, TX's air releases fell from 963 lb in 2022 to 920 lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 315 (93%) | 23 | 2 | 126 |
| 2023 | 320 (94%) | 22 | 0 | 100 |
| 2022 | 339 (94%) | 21 | 0 | 100 |
| 2021 | 343 (95%) | 17 | 0 | 87 |
| 2020 | 345 (95%) | 17 | 1 | 133 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Texas, see the EPA's AirNow.gov.
Water Systems (10)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CITY OF ROCKWALL | 55,250 | 0 |
| CITY OF FATE | 29,285 | 0 |
| CITY OF ROYSE CITY | 24,313 | 1 |
| FORNEY LAKE WSC | 20,377 | 0 |
| CITY OF HEATH | 10,464 | 0 |
| R C H WSC | 7,863 | 1 |
| B H P WSC | 6,321 | 0 |
| BLACKLAND WSC | 6,171 | 0 |
| MOUNT ZION WSC | 2,028 | 3 |
| THE PINES OF GOODRICH | 40 | 49 |
TRI Facilities (7)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Channell Rockwall Texas | 11.1K lbs |
| 2 | Whitmore Manufacturing Co | 14 lbs |
| 3 | Redi-Mix - Rockwall | 9 lbs |
| 4 | Holcim-Sor Inc.- Rockwall Rm | 0 lbs |
| 5 | Chryso Inc | 0 lbs |
| 6 | Ekj Enterprises LP | 0 lbs |
| 7 | Chryso Inc. | 0 lbs |
Cities in Rockwall (3)
Frequently Asked Questions
What is the environmental risk level in Rockwall, Texas? ▼
Are there Superfund sites in Rockwall? ▼
How many toxic release facilities are in Rockwall? ▼
What is the air quality in Rockwall? ▼
Is the drinking water safe in Rockwall? ▼
What environmental agencies cover Rockwall? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.