Brazoria, 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 Brazoria in Texas · Population: 381,650
TRI sites such as Ascend Performance Materials-Chocolate Bayou Plant; Basf Corp - Freeport Site; Phillips 66 Co Sweeny Refinery Complex; SDWIS systems such as CITY OF PEARLAND; CITY OF LAKE JACKSON; CITY OF ALVIN; NPL sites such as Gulfco Marine Maintenance anchor Brazoria, TX's EPA extract. Derived burden score 80/100 (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 Brazoria include VILLAGE OF SURFSIDE BEACH; CITY OF SWEENY; BRAZORIA COUNTY SHERIFFS OFFICE DETENTIO, while Ascend Performance Materials-Chocolate Bayou Plant leads reported TRI pounds among local Form R filers. AQS median AQI 37 / peak 164 in 2024.
Burden score 80/100 (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 Brazoria -- 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 Brazoria, TX: EPA TRI 2023 reporting year
Same facilities, both years
-7.3%
50 facilities that filed in 2022 and 2023
Whole inventory
-7.3%
25.8 million lb → 23.9 million lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Brazoria, TX's total reported releases fell from 25.8 million lb in 2022 to 23.9 million lb in 2023, based on EPA TRI filings.
- Brazoria, TX's off-site transfers rose from 221.3 thousand lb in 2022 to 730.5 thousand lb in 2023, based on EPA TRI filings.
- Brazoria, TX's water releases fell from 3.0 million lb in 2022 to 1.7 million lb in 2023, based on EPA TRI filings.
- Brazoria, TX's air releases fell from 3.3 million lb in 2022 to 2.9 million 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 | 303 (83%) | 56 | 5 | 164 |
| 2023 | 301 (82%) | 47 | 16 | 156 |
| 2022 | 311 (85%) | 46 | 8 | 119 |
| 2021 | 331 (91%) | 22 | 11 | 159 |
| 2020 | 328 (90%) | 34 | 2 | 182 |
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 (47)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| CITY OF PEARLAND | 125,828 | 0 |
| CITY OF LAKE JACKSON | 27,314 | 0 |
| CITY OF ALVIN | 26,244 | 0 |
| CITY OF ANGLETON | 19,429 | 0 |
| CITY OF CLUTE | 10,604 | 0 |
| CITY OF FREEPORT | 10,594 | 0 |
| CITY OF IOWA COLONY | 9,978 | 0 |
| CITY OF MANVEL | 8,437 | 0 |
| CITY OF RICHWOOD | 7,605 | 0 |
| CITY OF PEARLAND MUD 1 | 5,947 | 0 |
| VILLAGE OF SURFSIDE BEACH | 5,697 | 229 |
| CITY OF SWEENY | 3,978 | 3 |
| CITY OF WEST COLUMBIA | 3,650 | 0 |
| VARNER CREEK UTILITY DISTRICT | 3,111 | 0 |
| CITY OF BRAZORIA | 2,900 | 0 |
| BRAZORIA COUNTY SHERIFFS OFFICE DETENTIO | 1,953 | 27 |
| CITY OF OYSTER CREEK | 1,701 | 1 |
| CITY OF DANBURY | 1,673 | 20 |
| CITY OF ARCOLA | 1,599 | 0 |
| TREASURE ISLAND MUD | 951 | 66 |
| TOWN OF HOLIDAY LAKES | 921 | 0 |
| CITY OF HILLCREST VILLAGE | 813 | 0 |
| BRAZORIA COUNTY FWSD 1 DAMON | 780 | 1 |
| SELKIRK WSC | 678 | 1 |
| P & B WATER SYSTEM | 660 | 1 |
| CITY OF LIVERPOOL | 500 | 18 |
| COMMODORE COVE IMPROVEMENT DISTRICT | 356 | 110 |
| J M P UTILITIES | 300 | 1 |
| FRONTIER WATER | 240 | 0 |
| TOWN OF QUINTANA | 231 | 52 |
| BAYOU SHADOWS WATER SYSTEM | 174 | 4 |
| TURTLE COVE LOT OWNERS ASSOC | 141 | 144 |
| HARVEST ACRES RV PARK | 120 | 1 |
| BRAZOS RIVER CLUB | 111 | 1 |
| SHADY CREEK SECTION 3 WATER SYSTEM | 105 | 1 |
| SHADY OAKS MHP | 90 | 0 |
| SELLERS ESTATES MOBILE HOME COMM | 85 | 1 |
| OYSTER CREEK ESTATES | 81 | 1 |
| MALLARD LAKE CLUB | 80 | 1 |
| MARLIN MARINA WATER SYSTEM | 80 | 3 |
| ROBIN COVE WATER SUBDIVISION | 72 | 1 |
| WOLFE AIR PARK | 65 | 1 |
| BATEMAN WATER WORKS | 63 | 1 |
| PEAKES PARK | 57 | 0 |
| CITY OF FREEPORT SLAUGHTER ROAD | 40 | 1 |
| COUNTRYSIDE MOBILE HOME PARK | 15 | 1 |
| BRAZOSPORT WATER AUTHORITY | 0 | 2 |
TRI Facilities (50)
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Gulfco Marine Maintenance | NPL Site | 50.00 |
Cities in Brazoria (23)
Frequently Asked Questions
What is the environmental risk level in Brazoria, Texas? ▼
Are there Superfund sites in Brazoria? ▼
How many toxic release facilities are in Brazoria? ▼
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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.