Brazoria County, TX
The federal environmental record for Brazoria County (population 398,938): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
12
federal cleanup sites
9
PFAS-detecting water systems
52
TRI facilities
18
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Gulfco Marine Maintenance | Freeport | on the NPL | 04/30/2003 |
Drinking water: PFAS testing
Public water systems serving Brazoria with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| CITY OF PEARLAND TX0200008 | PFPeA: 66.7 ng/L PFBA: 20.2 ng/L PFHxA: 6.3 ng/L | above final limit |
| CITY OF ANGLETON TX0200002 | PFPeA: 205 ng/L PFBA: 14.8 ng/L PFHxA: 7 ng/L | detected |
| CITY OF BRAZORIA TX0200003 | PFPeA: 54 ng/L PFBA: 30.2 ng/L PFHxA: 5.2 ng/L | detected |
| CITY OF CLUTE TX0200004 | PFPeA: 175 ng/L NFDHA: 26.9 ng/L PFBA: 12.4 ng/L | detected |
| CITY OF FREEPORT TX0200005 | PFPeA: 151 ng/L PFBA: 12.7 ng/L PFHxA: 5.4 ng/L | detected |
| CITY OF LAKE JACKSON TX0200006 | PFPeA: 29.6 ng/L PFBA: 19.7 ng/L PFHxA: 3.2 ng/L | detected |
| CITY OF RICHWOOD TX0200035 | PFPeA: 180 ng/L PFBA: 38 ng/L NFDHA: 31.3 ng/L | detected |
| VILLAGE OF SURFSIDE BEACH TX0200037 | PFPeA: 4.6 ng/L | detected |
| DOW TEXAS FREEPORT SALT DOME 8 TX0200534 | PFPeA: 48 ng/L PFBA: 18 ng/L PFHxA: 4.7 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
52 facilities in Brazoria filed TRI reports for 2024, totalling 24.3M lb released. The 25 largest by volume:
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| ASCEND PERFORMANCE MATERIALS-CHOCOLATE BAYOU PLANT | ALVIN | Ammonia, Acrylonitrile | 18.7M lb |
| BASF CORP - FREEPORT SITE | FREEPORT | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Cyclohexanol | 1.4M lb |
| PHILLIPS 66 CO SWEENY REFINERY COMPLEX | OLD OCEAN | Nitrate compounds (water dissociable; reportable only when in aqueous solution), n-Hexane | 911k lb |
| DOW CHEMICAL CO FREEPORT FACILITY | FREEPORT | Ethylene, Ammonia | 883k lb |
| INEOS USA LLC - CHOCOLATE BAYOU PLANT | ALVIN | Ethylene, Propylene | 837k lb |
| CHEVRON PHILLIPS CHEMICAL CO LP SWEENY COMPLEX | SWEENY | Ethylene, Propylene | 414k lb |
| FREEPORT_OLIN BC | FREEPORT | Dichloromethane, 4,4'-Isopropylidenediphenol | 337k lb |
| MEGLOBAL OYSTER CREEK | FREEPORT | Ethylene glycol, Ethylene | 171k lb |
| RIVIANA FOODS INC. | FREEPORT | Sulfuryl fluoride, Aluminum phosphide | 86k lb |
| BRASKEM AMERICA INC. OYSTER CREEK PLANT | FREEPORT | Propylene, Ethylene | 81k lb |
| THIRD COAST TERMINALS PEARLAND | PEARLAND | Certain glycol ethers, Diisocyanates | 67k lb |
| CHEVRON PHILLIPS CHEMICAL CO LP CLEMENS TERMINAL | BRAZORIA | Ethylene, Propylene | 62k lb |
| LINDE- SWEENY HYDROGEN PLANT | SWEENY | Ammonia | 42k lb |
| SHINTECH INC | FREEPORT | Vinyl chloride, Methanol | 33k lb |
| FREEPORT LNG LIQUEFACTION FACILITY | FREEPORT | Ethylene, Toluene | 24k lb |
| AIR LIQUIDE FREEPORT HPU PLANT | FREEPORT | Zinc compounds, Ethylene | 22k lb |
| TEXAS BARGE & BOAT INC | FREEPORT | Xylene (mixed isomers), n-Butyl alcohol | 22k lb |
| INEOS OLIGOMERS CHOCOLATE BAYOU | ALVIN | Ethylene, Ammonia | 21k lb |
| PHILLIPS 66 CO FREEPORT I TERMINAL | FREEPORT | Benzene, Cyclohexane | 21k lb |
| CHAMPIONX-FREEPORT | FREEPORT | Propylene oxide, Formaldehyde | 20k lb |
| ADHESIVE POLYMERS PLANT | FREEPORT | Ethylene, Acrylic acid | 19k lb |
| DSM NUTRITIONAL PRODUCTS | FREEPORT | Methanol, Dichloromethane | 17k lb |
| GLADIEUX METALS RECYCLING LLC | FREEPORT | Molybdenum trioxide, Vanadium compounds | 15k lb |
| SOLVCHEM INC. - PEARLAND FACILITY | PEARLAND | Diethanolamine, Methanol | 13k lb |
| FREEPORT LNG PRETREATMENT FACILITY | FREEPORT | n-Hexane, Ammonia | 12k lb |
Underground fuel tanks
EPA's UST Finder records 726 tank facilities in Brazoria: 553 tanks in service and 1,354 closed. 311 fuel releases are on record, of which 18 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Brazoria as Zone 3, the lowest predicted indoor radon (under 2 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Brazoria, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- ASCEND AMMONIA RELEASECLUTE
- BNSF HASTINGS DERAILMENTHASTINGS
- CITY OF PEARLAND- LONGWOOD WWTPPEARLAND
- CLUTE TEXAS MERCURY RESPONSECLUTE
- DOW CHEMICAL-B1700PHENOLFREEPORT
- EMCHEM CORPORATIONPEARLAND
- FREEPORT PHARMACYFREEPORT
- GULFCO MARINE MAINTENANCEFREEPORT
- HARKEY ROADPEARLAND
- INNOVENE FIRE AND EXPLOSIONALVIN
- LITHIUM POWERES TECHNOLOGIES, INC.MANVEL
- VENATOR-FREEPORT-HCI SPILLFREEPORT