Dallas, 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. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Dallas in Texas · Population: 2,603,816
TRI sites such as Nexeo Solutions LLC; Daisy Brand; Western Extrusions Corp; SDWIS systems such as DALLAS WATER UTILITY; CITY OF IRVING; CITY OF ROWLETT; NPL sites such as Bio-Ecology Systems, Inc.; Delfasco Forge; Lane Plating Works, Inc. anchor Dallas, TX's EPA extract. Derived burden score 91/100 (High 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 Dallas include CITY OF BALCH SPRINGS; CITY OF SEAGOVILLE; KAUFMAN COUNTY FWSD 4A, while Nexeo Solutions LLC leads reported TRI pounds among local Form R filers. AQS median AQI 55 / peak 185 in 2024.
Burden score 91/100 (High 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 Dallas -- 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 Dallas, TX: EPA TRI 2023 reporting year
Same facilities, both years
+31.4%
116 facilities that filed in 2022 and 2023
Whole inventory
+26.6%
908.2 thousand lb → 1.1 million lb, every facility that filed
Between the two reporting years, 4 facilities filed for the first time and 10 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Dallas, TX's total reported releases rose from 875.1 thousand lb in 2022 to 1.1 million lb in 2023, based on EPA TRI filings.
- Dallas, TX's water releases rose from 153 lb in 2022 to 414 lb in 2023, based on EPA TRI filings.
- Dallas, TX's off-site transfers rose from 626.2 thousand lb in 2022 to 932.9 thousand lb in 2023, based on EPA TRI filings.
- Dallas, TX's air releases fell from 248.8 thousand lb in 2022 to 216.3 thousand 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 | 129 (35%) | 218 | 16 | 185 |
| 2023 | 122 (33%) | 216 | 26 | 172 |
| 2022 | 164 (45%) | 184 | 17 | 148 |
| 2021 | 210 (58%) | 145 | 9 | 174 |
| 2020 | 218 (60%) | 142 | 6 | 135 |
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 (60)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| DALLAS WATER UTILITY | 1,356,479 | 0 |
| CITY OF IRVING | 264,546 | 0 |
| CITY OF ROWLETT | 68,123 | 0 |
| CITY OF DESOTO | 57,999 | 0 |
| CITY OF CEDAR HILL | 50,904 | 0 |
| CITY OF COPPELL | 43,193 | 0 |
| CITY OF LANCASTER | 40,449 | 0 |
| CITY OF FARMERS BRANCH | 40,246 | 0 |
| CITY OF SACHSE | 30,630 | 0 |
| CITY OF BALCH SPRINGS | 28,300 | 1 |
| CITY OF UNIVERSITY PARK | 25,617 | 0 |
| CITY OF SEAGOVILLE | 20,156 | 2 |
| TOWN OF ADDISON | 17,257 | 0 |
| TOWN OF HIGHLAND PARK | 8,959 | 0 |
| TOWN OF SUNNYVALE | 8,839 | 0 |
| KAUFMAN COUNTY FWSD 4A | 7,317 | 3 |
| CITY OF WILMER | 7,296 | 1 |
| KAUFMAN COUNTY MUD 14 | 6,456 | 0 |
| CITY OF HUTCHINS | 5,902 | 0 |
| FRISCO WEST WCID | 5,805 | 0 |
| CITY OF COCKRELL HILL | 3,855 | 0 |
| KAUFMAN COUNTY MUD 11 | 3,819 | 0 |
| KAUFMAN COUNTY MUD 10 | 3,771 | 0 |
| KAUFMAN COUNTY FWSD 1D | 3,324 | 0 |
| KAUFMAN COUNTY FWSD 1B | 2,046 | 0 |
| KAUFMAN COUNTY FWSD 4B | 1,830 | 3 |
| KAUFMAN COUNTY MUD 9 | 1,473 | 0 |
| KAUFMAN COUNTY MUD 12 | 1,350 | 0 |
| LAJITAS ON THE RIO GRANDE | 942 | 0 |
| CRESSON CROSSROADS MUD 2 | 888 | 10 |
| ROLLING V RANCH WCID 1 OF WISE COUNTY | 795 | 0 |
| ROLLING V RANCH WCID 2 | 774 | 0 |
| LAKE VIEW MGMT & DEVELOPMENT DIST LONG C | 684 | 0 |
| HILLSIDE VILLAGE | 650 | 0 |
| NEW FAIRVIEW MUD 1 | 537 | 0 |
| HIDEAWAY HILLS | 470 | 0 |
| CLEARWATER DISTRIBUTION | 303 | 60 |
| MATTHEW ROAD WSC | 279 | 1 |
| D BAR B MOBILE HOME RANCH | 267 | 42 |
| BIXBY ESTATES | 225 | 1 |
| EVERGREEN ESTATES WATER SYSTEM | 162 | 5 |
| SUNHAVEN MOBILE HOME PARK | 160 | 0 |
| DALLAS COUNTY MUD 4 | 150 | 0 |
| COUNTRY OAKS MOBILE HOME PARK | 146 | 2 |
| EASTWOOD MOBILE HOME COURT | 140 | 0 |
| HILLCREST NORTH MUD | 114 | 0 |
| SNAKE RIVER MOBILE HOME PARK | 100 | 9 |
| LANDING AT HICKORY RIDGE | 87 | 2 |
| LONE OAK CABINS | 78 | 4 |
| CHART HOUSE CONDOMINIUM | 75 | 64 |
| EAGLE RIDGE MUD | 57 | 0 |
| WALDEN POND FWSD OF KAUFMAN COUNTY | 55 | 0 |
| CRESSON CROSSROADS MUD 2 KELLY RANCH | 45 | 0 |
| TIERRA BLANCA MUD 1 | 45 | 0 |
| PARKERVILLE EAST MOBILE HOME PARK | 42 | 1 |
| THE HOMESTEAD CHINOOK RIDGE | 33 | 0 |
| PLURIS ALABAMA LLC, | 0 | 0 |
| DALLAS COUNTY PARK CITIES MUD | 0 | 1 |
| KAUFMAN COUNTY FWSD 1A | 0 | 0 |
| ROLLING V RANCH WCID 3 OF WISE COUNTY | 0 | 0 |
TRI Facilities (50)
Superfund Sites (4)
| Site Name | Status | HRS Score |
|---|---|---|
| Bio-Ecology Systems, Inc. | Deleted NPL Site | 35.06 |
| Delfasco Forge | NPL Site | 50.00 |
| Lane Plating Works, Inc. | NPL Site | 50.00 |
| RSR Corp. | NPL Site | 50.00 |
Cities in Dallas (19)
Frequently Asked Questions
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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.