
Plant alerts and the CAER line
Living beside the plants means occasionally wondering what that was. CAER is the channel the operators use to say so, usually within about fifteen minutes.

- CAER line281-476-2237 (281-476-CAER)
CAER Line recorded messages (Emergency and General Information) at 281-476-CAER; CAER Online / EHCMA CAER app for posted industrial incident, flaring, odor, smoke, planned-event, and operational-disruption messages (View Active Messages / app push alerts). Baytown OEM also points residents to CAER Online and the CAER Online App; plant operators aim to post urgent messages within about 15 minutes. Follow local emergency managers during emergencies.
Number verified against the Greater Baytown Area LEPC (source).
Reported emissions events
530 air emission events reported to the TCEQ for Harris and Chambers counties, 2024-09-16 to 2026-09-16, from 91 facilities. Every air emission event reported to the TCEQ for Harris and Chambers counties in the window, as the TCEQ search returned them — including plants in Channelview, La Porte and Pasadena that are upwind on some days. A short list for a facility means it reported little, not that nothing happened; reportable thresholds and reporting practice differ by plant.
| date | facility | substances | duration | report |
|---|---|---|---|---|
| 2026-09-15 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, hexanes +, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene | 1 hours, 0 minutes | 465459 |
| 2026-09-15 | LUBRIZOL DEER PARK | Butenes, All Isomers | 6 hours, 20 minutes | 465469 |
| 2026-09-14 | EXXONMOBIL BAYTOWN REFINERY | Benzene, Cyclohexane, Cyclopentane, dimethyl butane, Ethyl Benzene, Heptane, Hexane, Isohexane, Isopentane, Methyl Pentane, n-pentane, Octane, Toluene, VOC( unspeciated), Xylene | 0 hours, 20 minutes | 465407 |
| 2026-09-14 | HOUSTON PLANT | 1,3-BUTADIENE, VOCs | 1 hours, 5 minutes | 465379 |
| 2026-09-11 | EXXONMOBIL CHEMICAL MONT BELVIEU PLASTICS PLANT | Opacity | 0 hours, 16 minutes | 465280 |
| 2026-09-10 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | Benzene | 7 hours, 0 minutes | 465235 |
| 2026-09-10 | EXXONMOBIL BAYTOWN REFINERY | Ammonia, Benzene, Carbon Monoxide, Hydrogen cyanide, Nitrogen Oxides (NOx), Particulate Matter, Sulfur dioxide, Sulfuric acid, VOC( unspeciated) | 0 hours, 36 minutes | 465234 |
| 2026-09-08 | PCI NITROGEN PASADENA | Sulfuric acid | 0 hours, 15 minutes | 464969 |
| 2026-09-08 | EXXONMOBIL BAYTOWN REFINERY | Ammonia, Benzene, Carbon Monoxide, Hydrogen cyanide, Nitrogen Oxides (NOx), Particulate Matter, Sulfur dioxide, Sulfuric acid, VOC (unspeciated) | 2 hours, 59 minutes | 465007 |
| 2026-09-08 | PASADENA PERFORMANCE PRODUCTS | butene c-2, butene-1, Ethylene (gaseous), Trans-butene-2 | 3 hours, 0 minutes | 465009 |
| 2026-09-06 | DEER PARK OIL REFINERY | 1-Butene, Butane, C5+, Carbon Monoxide, Cis-2-butene, Ethylene, Hydrogen Sulfide, Isobutane, Isobutene, NOX, Propane, Propylene (Propene), Sulfur dioxide, Trans-2-butene, Ethene | 6 hours, 50 minutes | 464946 |
| 2026-09-04 | LUBRIZOL DEER PARK | NATURAL GAS | 0 hours, 45 minutes | 464941 |
| 2026-09-02 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC-unclassified | 2 hours, 12 minutes | 464843 |
| 2026-09-02 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Isobutane, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 15 hours, 40 minutes | 464845 |
| 2026-08-22 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, hexanes +, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene | 1 hours, 0 minutes | 464278 |
| 2026-08-22 | ENTERPRISE EAST | Carbon Monoxide, Nitrogen Oxides (NOx), Propane, Propylene | 10 hours, 0 minutes | 464280 |
| 2026-08-22 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Isobutane, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 13 hours, 50 minutes | 464283 |
| 2026-08-20 | LUBRIZOL DEER PARK | 3-Methyl-Pentane, Butenes, All Isomers, hexanes +, Isobutane, Pentenes | 3 hours, 40 minutes | 464179 |
| 2026-08-20 | BAYPORT FACILITY | Benzene, CO, NOX, VOCs | 24 hours, 0 minutes | 464192 |
| 2026-08-19 | HARTREE REFINERY | Carbon Monoxide, Crude Oil, Oxides of Nitrogen (NOx), PM2.5, Sulfur dioxide, Volatile Organic Compounds | 24 hours, 0 minutes | 464160 |
| 2026-08-18 | CHANNELVIEW PEAKING FACILITY | CO, NH3, NOX, Opacity | 0 hours, 1 minutes | 463913 |
| 2026-08-12 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 12 hours, 0 minutes | 463731 |
| 2026-08-12 | INVISTA HOUSTON | Benzene, Butane, butenes, Carbon Monoxide, Ethylene, gaseous, Hydrogen Sulfide, Oxides of Nitrogen (NOx), Propane, Propylene, Sulfur dioxide | 51 hours, 35 minutes | 463692 |
| 2026-08-11 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, Hexane Plus, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene | 2 hours, 0 minutes | 463600 |
| 2026-08-11 | EXXONMOBIL BAYTOWN REFINERY | 1,3-BUTADIENE, Butane, N-, butene c-2, Butene1_Isobutene, C5s, C6s, C7s, C8s, C9+, Carbon Monoxide, Ethylene, Hydrogen Sulfide, Isobutane, Nitrogen Oxides, Propane, Propylene, Sulfur dioxide, Trans-2-butene | 5 hours, 43 minutes | 463681 |
| 2026-08-09 | CLEAN HARBORS DEER PARK | Opacity | 0 hours, 45 minutes | 463485 |
| 2026-08-07 | CLARIANT CLEAR LAKE PLANT | Ethylene oxide | 0 hours, 1 minutes | 463470 |
| 2026-08-06 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, Hexane Plus, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentanes, Propane, Propylene | 11 hours, 0 minutes | 463373 |
| 2026-08-06 | MB NORTH TERMINAL | Butane, N-, Carbon Monoxide, Ethylene (gaseous), hexanes +, Isobutane, Nitrogen Oxides, pentane, iso-, Pentane, N-, Propane, Propylene (Propene) | 150 hours, 0 minutes | 462292 |
| 2026-08-05 | CLEAN HARBORS DEER PARK | Chlorine | 8 hours, 7 minutes | 463233 |
| 2026-08-03 | GULF COAST FRACTIONATORS | C6+, Carbon Monoxide, Isobutane, Isopentane, n-butane, Nitrogen Oxides, Pentane, N-, Propane | 13 hours, 0 minutes | 462996 |
| 2026-08-02 | GALENA PARK TERMINAL | 1,3-BUTADIENE | 3 hours, 0 minutes | 462962 |
| 2026-08-01 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, Hexane Plus, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane, Propylene | 23 hours, 0 minutes | 462957 |
| 2026-08-01 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+, Carbon Monoxide, Isobutane, Isobutylene, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 107 hours, 0 minutes | 462960 |
| 2026-08-01 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3 Butadiene | 0 hours, 2 minutes | 462959 |
| 2026-08-01 | ENTERPRISE EAST | Propylene (Propene) | 0 hours, 20 minutes | 462961 |
| 2026-07-31 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Ethylene, Isobutane, Isopentane, Pentane, N-, Propane, Propylene | 12 hours, 0 minutes | 462904 |
| 2026-07-31 | LYONDELL CHEMICAL CHANNELVIEW | Isobutylene | 0 hours, 5 minutes | 463145 |
| 2026-07-31 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 10 hours, 0 minutes | 462875 |
| 2026-07-30 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane | 6 hours, 0 minutes | 462836 |
| 2026-07-24 | EXXON MOBIL CHEMICAL BAYTOWN OLEFINS PLANT | 1,3 Butadiene, 1-Butene + Isobutylene, Acetylene, Benzene, Butane, N-, Carbon Monoxide, Ethylene (gaseous), Isobutane, Nitrogen Oxides, Other C5's, Propane, Propylene (Propene), Trans-2-butene, C5+ (not including benzene), Cis-2-butene, Ethylene, gaseous, Nitrous Oxides, Propane, N- | 4 hours, 52 minutes | 462566 |
| 2026-07-23 | EXXONMOBIL CHEMICAL BAYTOWN CHEMICAL PLANT | 2-Methyl-Pentane, Butanes, butenes, Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide, Nitrogen Oxides, Opacity, PM (unspeciated), Polypropylene, VOC( unspeciated) | 3 hours, 4 minutes | 462519 |
| 2026-07-22 | ENTERPRISE EAST | Carbon Monoxide, Nitrogen Oxides (NOx), Propane, Propylene | 13 hours, 0 minutes | 462341 |
| 2026-07-22 | EURECAT US | Sulfur dioxide | 9 hours, 41 minutes | 462439 |
| 2026-07-21 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 1,3 Butadiene, Acetylene, Benzene, Butane, Butene, Carbon Monoxide, Ethylene, Hexane, Hexene, Isoprene, Nitrogen Oxides (NOx), Pentane, Pentenes, Propane, Propylene, Toluene, Xylenes, C5+ (not including benzene), VOC (unspeciated) | 13 hours, 8 minutes | 462240 |
| 2026-07-21 | DEEPWATER TERMINAL | Opacity | 0 hours, 37 minutes | 462310 |
| 2026-07-21 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, NOX, Propane, Propylene (Propene) | 149 hours, 0 minutes | 462293 |
| 2026-07-20 | ENTERPRISE EAST | Propane, Propylene (Propene) | 50 hours, 30 minutes | 462111 |
| 2026-07-20 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 1,3 Butadiene, Acetylene, Benzene, Butane, Butene, Carbon Monoxide, Ethylene, Hexane, Hexene, Isoprene, Nitrogen Oxides (NOx), Pentane, Pentenes, Propane, Propylene, Toluene, Xylenes, Butanes, C5+ (not including benzene) | 15 hours, 50 minutes | 462169 |
| 2026-07-20 | LA PORTE VCM PLANT | 1,1-Dichloroethane, 1,2-cis-Dichloroethylene, 1,2-Dichloroethane, 1,2-trans-Dichloroethylene, Carbon tetrachloride, Chloroform, Ethyl chloride, Ethylidene dichloride, Vinyl Chloride | 0 hours, 9 minutes | 462182 |
| 2026-07-19 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3 Butadiene, Acetylene, Benzene, Butanes, Butene, C9+, Carbon Monoxide, Cycloheptane, cyclooctane, Ethylene, Heptane, Hexane, Isoprene, Nitrogen Oxides (NOx), Octane, Opacity, Pentadiene, Pentane, Propane, Propylene, Styrene, Toluene, Xylene | 2 hours, 0 minutes | 462006 |
| 2026-07-18 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | Opacity | 0 hours, 5 minutes | 462005 |
| 2026-07-16 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Acetic acid, Butyric acid, Dipropylene Glycol, Esters, Formic acid, Isobutylene, Monopropylene Glycol, Propionic acid | 54 hours, 8 minutes | 461976 |
| 2026-07-14 | PASADENA PLASTICS COMPLEX | Butadiene, Butane, N-, Butene, Carbon Monoxide, Ethylene (gaseous), Hexene, Isobutane, Nitrogen Oxides, Propane, Nitrogen Oxides (NOx) | 121 hours, 51 minutes | 461672 |
| 2026-07-14 | PASADENA PERFORMANCE PRODUCTS | Butane, N-, butene c-2, butene-1, Carbon Monoxide, Ethylene (gaseous), Hexane, n, Hexenes, Isobutane, Oxides of Nitrogen (NOx), Propane, Trans-butene-2 | 47 hours, 30 minutes | 461679 |
| 2026-07-14 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | Opacity, 1,3 Butadiene, Acetylene, Benzene, Butanes, Butene, C9+, Carbon Monoxide, Cycloheptane, Ethylene, Heptane, Hexane, Isoprene, Nitrogen Oxides (NOx), Octane, Pentadiene, Pentane, Propane, Propylene, Styrene, Toluene, Xylene | 2 hours, 20 minutes | 461709 |
| 2026-07-12 | ENTERPRISE EAST | Propylene | 0 hours, 20 minutes | 461546 |
| 2026-07-11 | ENTERPRISE PASADENA PLANT | Ammonia, Carbon Monoxide, Nitrogen oxide, Particulate Matter, Sulfur dioxide, VOC, C5+ (not including benzene), Isobutane, Isobutylene | 11 hours, 0 minutes | 461506 |
| 2026-07-10 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 1,3-BUTADIENE, Acetylene, Benzene, Butane, Butene, Carbon Monoxide, Cyclopentadiene, Ethylene (gaseous), Hexene, NOX, Pentadiene, Pentenes, Propane, Propylene (Propene), Toluene, Xylene | 30 hours, 20 minutes | 461503 |
| 2026-07-09 | ROHM AND HAAS TEXAS DEER PARK PLANT | Acetone, Carbon Monoxide, Dimethyl ether, Methanol, Methyl methacrylate, Sulfur dioxide, VOC | 21 hours, 15 minutes | 461643 |
| 2026-07-09 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 1,3-BUTADIENE, Acetylene, Benzene, Butane, Butene, Carbon Monoxide, Cyclopentadiene, Ethylene (gaseous), Hexene, NOX, Pentadiene, Pentenes, Propane, Propylene (Propene), Toluene, Xylene | 23 hours, 20 minutes | 461294 |
| 2026-07-08 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 615 hours, 0 minutes | 461377 |
| 2026-07-07 | LYONDELLBASELL BAYPORT POLYMERS | Butane, N-, butenes, Carbon Monoxide, Ethylene, Nitrogen Oxides (NOx), Pentane Plus, Propane, Propylene | 3 hours, 0 minutes | 461248 |
| 2026-07-06 | MORGANS POINT COMPLEX | Carbon Monoxide, Nitrogen Oxides (NOx), Propane | 43 hours, 45 minutes | 461088 |
| 2026-07-03 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 29 hours, 0 minutes | 461007 |
| 2026-06-30 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Butyl alcohol, tert-, Dipropylene Glycol, Monopropylene Glycol | 0 hours, 50 minutes | 460911 |
| 2026-06-28 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | Butanes, Butene, Carbon Monoxide, Decenes, Ethylene, Hexene, Nitrogen Oxides (NOx), Octene, Propane, Propylene | 4 hours, 0 minutes | 460718 |
| 2026-06-26 | SHELL CHEMICAL | 1,3-BUTADIENE, Butane, N-, Carbon Monoxide, Cis-2-butene, Ethylene (gaseous), Isobutane, Isobutene, Nitrogen Oxides (NOx), Propane, Propylene (Propene), Trans-2-butene, VOC GAS MIXTURE | 14 hours, 30 minutes | 460712 |
| 2026-06-25 | LUBRIZOL DEER PARK | Butenes, All Isomers, hexanes +, Isobutane, Pentenes | 1 hours, 45 minutes | 460640 |
| 2026-06-25 | CLEAR LAKE PLANT | Kerosene | 0 hours, 13 minutes | 460633 |
| 2026-06-23 | DEER PARK VCM PLANT | 1,1,2-Trichloroethane, 1,1-Dichloroethane, 1,1-Dichloroethylene, 1,2-cis-Dichloroethylene, 1,2-trans-Dichloroethylene, Benzene, Carbon Monoxide, Carbon tetrachloride, Chlorine, Chloroform, Chloroprene, Ethyl chloride, Ethylene (gaseous), Ethylene dichloride, Ethylene oxide, Hydrogen chloride, Propylene, Trichloroethylene, Vinyl bromide, Vinyl Chloride | 6 hours, 34 minutes | 460560 |
| 2026-06-22 | HOUSTON PLANT | Ammonia, Nitrogen Oxides (NOx) | 25 hours, 0 minutes | 460424 |
| 2026-06-20 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Isobutane, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 14 hours, 0 minutes | 460352 |
| 2026-06-19 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC-unclassified | 4 hours, 58 minutes | 460342 |
| 2026-06-18 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Isobutane, Isobutylene, Nitrogen oxide, Propane, Propylene (Propene), Sulfur dioxide | 40 hours, 0 minutes | 460234 |
| 2026-06-18 | EXXONMOBIL BAYTOWN REFINERY | Ethylene, Propane, Butane, N-, Butene1_Isobutene, C5+, Carbon Monoxide, Hydrogen Sulfide, Isobutane, Nitrogen Oxides (NOx), Propylene, Sulfur dioxide, Trans-2-butene, Cis-2-butene, 1,3-BUTADIENE, 1-Pentene, C6+, Hexane, n, Hexenes, Isopentane, Pentane, N- | 4 hours, 3 minutes | 460248 |
| 2026-06-18 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 2 hours, 0 minutes | 459858 |
| 2026-06-17 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Isobutane, Isopentane, Pentane, N-, Propane, Carbon Monoxide, Ethylene, Nitrogen Oxides (NOx), Propylene, NOX | 19 hours, 0 minutes | 460228 |
| 2026-06-16 | EQUISTAR CHEMICALS LA PORTE COMPLEX | Carbon Monoxide, Nitrogen Oxides, Butane, Butene, Ethylene (gaseous), Isopentane | 5 hours, 10 minutes | 460026 |
| 2026-06-15 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC-unclassified | 14 hours, 7 minutes | 459985 |
| 2026-06-15 | ENTERPRISE PASADENA PLANT | Ammonia, Particulate Matter, Sulfur dioxide, VOC, Carbon Monoxide, Nitrogen oxide, C5+ (not including benzene), Isobutane, Isobutylene | 6 hours, 30 minutes | 460000 |
| 2026-06-14 | INEOS AMERICAS PASADENA SITE | Propylene (Propene) | 17 hours, 0 minutes | 459822 |
| 2026-06-14 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 14 hours, 0 minutes | 459865 |
| 2026-06-11 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3-BUTADIENE, Acetylene, Benzene, Butanes, butenes, C9+, Carbon Monoxide, Cycloheptane, cyclooctane, Ethylene, Heptane, Hexane, Isoprene, NOX, Octane, Pentadiene, Pentane, Propane, Propylene, Styrene, Toluene, Xylene | 12 hours, 1 minutes | 459675 |
| 2026-06-11 | DEER PARK PVC | Vinyl Chloride | 0 hours, 10 minutes | 459773 |
| 2026-06-10 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3 Pentadiene, 1,3-BUTADIENE, 2-Methyl-1-butene, 2-Methyl-2-Butene, 2-Pentene,(Z), Benzene, Butane, N-, butenes, Cyclo 1,3 Pentadiene, Cyclopentane, Cyclopentene, Dicyclopentadiene, Ethyl Benzene, Ethylene, Heptane, Hexane, Indane, Indene, Isobutane, Isopentane, Isoprene, Methyl Acetylene, Nonane, Octane, Pentane, N-, Pentene, Propane, Propylene, Styrene, Toluene, Unspeciated VOCs, Xylene (mixed isomers) | 1 hours, 50 minutes | 459404 |
| 2026-06-09 | SHELL CHEMICAL | 1,3-BUTADIENE, Butane, N-, Carbon Monoxide, Cis-2-butene, Ethylene (gaseous), Hydrogen Sulfide, Isobutane, Isobutene, Nitrogen Oxides (NOx), Propane, Propylene, Sulfur dioxide, Trans-2-butene, VOC GAS MIXTURE | 14 hours, 18 minutes | 459238 |
| 2026-06-09 | SHELL CHEMICAL | Ethylene (gaseous) | 1 hours, 32 minutes | 459239 |
| 2026-06-06 | LYONDELL CHEMICAL CHANNELVIEW | Carbon Monoxide, Propane, Propylene | 7 hours, 0 minutes | 459010 |
| 2026-06-06 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | Butanes, Butene, Carbon Monoxide, Decenes, Ethylene, Hexene, Nitrogen Oxides (NOx), Octene, Propane, Propylene | 10 hours, 0 minutes | 459017 |
| 2026-06-06 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 16 hours, 0 minutes | 459018 |
| 2026-06-05 | BAYPORT EO PLANT | Ethylene | 0 hours, 8 minutes | 458999 |
| 2026-06-03 | GULF COAST FRACTIONATORS | Butane, i, Butane, N-, C6+, Carbon Monoxide, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 14 hours, 0 minutes | 458862 |
| 2026-06-03 | EXXON MOBIL CHEMICAL BAYTOWN OLEFINS PLANT | 1,3 Butadiene, 1-Butene + Isobutylene, Acetylene, Benzene, Butane, N-, Carbon Monoxide, Cis-2-butene, Ethylene, Nitrogen Oxides, Other C5's, Propane, Propene, Trans-2-butene, Isobutane | 0 hours, 51 minutes | 458881 |
| 2026-06-02 | OXITENO PASADENA PLANT | Wastewater discharge, industrial | 27 hours, 22 minutes | 458863 |
| 2026-06-01 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | Nitrogen Oxides (NOx) | 32 hours, 0 minutes | 458779 |
| 2026-05-30 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Isobutane, Isopentane, Pentane, N-, Propane | 4 hours, 23 minutes | 458595 |
| 2026-05-29 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 35 hours, 10 minutes | 458591 |
| 2026-05-28 | MB NORTH TERMINAL | Butane, N-, Carbon Monoxide, Ethylene (gaseous), hexanes +, Isobutane, Nitrogen Oxides, pentane, iso-, Pentane, N-, Propane, Propylene (Propene), VOC (unclassified) | 194 hours, 23 minutes | 458541 |
| 2026-05-20 | MORGANS POINT COMPLEX | Propylene (Propene) | 1 hours, 6 minutes | 458200 |
| 2026-05-20 | MCA LA PORTE SITE | Carbon Monoxide, Ethylene (gaseous), Methanol, Nitrogen Oxides (NOx) | 10 hours, 0 minutes | 458172 |
| 2026-05-19 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | butenes, Ethylene, Unspeciated VOCs | 0 hours, 37 minutes | 458092 |
| 2026-05-18 | TRECORA WAX PASADENA | Opacity | 0 hours, 39 minutes | 458037 |
| 2026-05-18 | SHELL CHEMICAL | 1,3-BUTADIENE, Butane, N-, Carbon Monoxide, Cis-2-butene, Ethylene (gaseous), Isobutane, Isobutene, Nitrogen Oxides (NOx), Propane, Propylene, Trans-2-butene, VOC GAS MIXTURE | 3 hours, 40 minutes | 458074 |
| 2026-05-18 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, NOX, Propane, Propylene (Propene) | 16 hours, 0 minutes | 458065 |
| 2026-05-17 | DAIKIN COMFORT TECHNOLOGIES MANUFACTURING | Opacity | 0 hours, 45 minutes | 457972 |
| 2026-05-16 | TRECORA WAX PASADENA | Opacity | 1 hours, 5 minutes | 457966 |
| 2026-05-15 | TRECORA WAX PASADENA | Carbon Monoxide, Nitrogen Oxides, Opacity, Particulate Matter, Toluene | 1 hours, 0 minutes | 457968 |
| 2026-05-15 | ENTERPRISE EAST | Propane, Propylene (Propene) | 24 hours, 0 minutes | 457959 |
| 2026-05-14 | NISSEKI CHEMICAL TEXAS | Propylene (Propene), Carbon Monoxide, Nitrogen Oxides (NOx), Opacity | 48 hours, 0 minutes | 457890 |
| 2026-05-14 | MORGANS POINT COMPLEX | Carbon Monoxide, Isobutylene, Nitrogen Oxides (NOx) | 4 hours, 44 minutes | 457898 |
| 2026-05-13 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 46 hours, 0 minutes | 457778 |
| 2026-05-13 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 19 hours, 0 minutes | 457813 |
| 2026-05-12 | DEER PARK OIL REFINERY | 1-Butene, Butane, C5+, Carbon Monoxide, Cis-2-butene, Hydrogen Sulfide, Isobutane, Isobutene, NOX, Propylene (Propene), Sulfur dioxide, Trans-2-butene, Ethene | 1 hours, 11 minutes | 457751 |
| 2026-05-11 | EXXONMOBIL BAYTOWN REFINERY | Nitrogen dioxide, Sulfur dioxide | 74 hours, 15 minutes | 457658 |
| 2026-05-10 | AIR PRODUCTS LA PORTE PLANT | Carbon Monoxide, NOX, Sulfur dioxide, VOC | 2160 hours, 0 minutes | 458333 |
| 2026-05-10 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 8 hours, 10 minutes | 457620 |
| 2026-05-09 | GULF COAST FRACTIONATORS | Butane, i, Butane, N-, C6+, Carbon Monoxide, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 18 hours, 0 minutes | 457526 |
| 2026-05-05 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Opacity, Propane, Propylene (Propene), VOC | 11 hours, 28 minutes | 457323 |
| 2026-05-03 | MONT BELVIEU NGL FRACTIONATION AND STORAGE COMPLEX | NOX | 216 hours, 0 minutes | 456572 |
| 2026-05-03 | EXXONMOBIL CHEMICAL BAYTOWN CHEMICAL PLANT | Opacity | 0 hours, 23 minutes | 457204 |
| 2026-04-30 | MONT BELVIEU COMPLEX | Ethylene, Isobutane, n-butane, Propane, Propylene | 2 hours, 0 minutes | 465487 |
| 2026-04-30 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane, Propane, N- | 5 hours, 0 minutes | 457138 |
| 2026-04-26 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, Hexane Plus, Isobutane, Isopentane, n-pentane, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 326 hours, 0 minutes | 456805 |
| 2026-04-22 | PASADENA REFINERY | Benzene, Butanes, Crude Oil, Hexanes, Pentanes, Propane, Toluene, Xylene (mixed isomers) | 11 hours, 30 minutes | 456704 |
| 2026-04-22 | LYONDELLBASELL BAYPORT POLYMERS | 1,2,3,5-Tetramethyl Benzene, 2,3 Dimethylbutane, 2,3,4-trimethylhexane, 2-Methyl-Pentane, 2-methyloctane, cis-1,2-dimethylcyclohexane, Hexane, n, P-Xylene, Propylene | 34 hours, 17 minutes | 456823 |
| 2026-04-18 | PASADENA REFINERY | 1,2,4 Trimethylbenzene, 1,3-BUTADIENE, Benzene, Butanes, Carbon Monoxide, Ethylbenzene, Gasoline Blendstock, Hexanes, Naphthalene, Nitrogen Oxides, Opacity, Particulate Matter, Pentanes, Propane, Toluene, Xylene (mixed isomers) | 1 hours, 42 minutes | 456447 |
| 2026-04-16 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, NOX, Propane, Propylene (Propene), Nitrogen Oxides (NOx) | 61 hours, 0 minutes | 456408 |
| 2026-04-16 | BAYPORT POLYMERS | Butane, Butene, Carbon Monoxide, Ethylene (gaseous), Hexane, n, Hexene, NOX, Propane, SO2 | 139 hours, 0 minutes | 456445 |
| 2026-04-14 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 5 hours, 8 minutes | 456265 |
| 2026-04-14 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, NOX | 15 hours, 0 minutes | 456280 |
| 2026-04-14 | PASADENA PVC | Vinyl Chloride | 0 hours, 30 minutes | 456296 |
| 2026-04-14 | ROHM AND HAAS TEXAS DEER PARK PLANT | Ammonia, Carbon Monoxide, Hydrogen cyanide, t-Alkyl amines | 6 hours, 10 minutes | 456322 |
| 2026-04-12 | HOUSTON REFINING | Opacity | 0 hours, 6 minutes | 455657 |
| 2026-04-11 | LA PORTE VCM PLANT | 1,2-Dichloroethane, Vinyl Chloride Monomer | 6 hours, 50 minutes | 456133 |
| 2026-04-10 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 1,3-BUTADIENE, Acetylene, Benzene, Butane, N-, Dicyclopentadiene, Ethylene, Hexane, Pentanes, Propane, Propylene, Toluene | 2 hours, 35 minutes | 456117 |
| 2026-04-08 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 42 hours, 0 minutes | 455961 |
| 2026-04-08 | EQUISTAR CHEMICALS LA PORTE COMPLEX | Carbon Monoxide, NOX, Ethylene (gaseous), Propylene, Polymer | 2 hours, 0 minutes | 455972 |
| 2026-04-04 | ROHM AND HAAS TEXAS DEER PARK PLANT | Vinyl acetate | 5 hours, 45 minutes | 455714 |
| 2026-04-03 | LYONDELLBASELL ACETYLS | Acetaldehyde, Ethylene, gaseous, Vinyl acetate monomer | 0 hours, 46 minutes | 455704 |
| 2026-04-02 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Acetone, Butane, N-, Carbon Monoxide, Isobutane, Isobutylene, Nitrogen Oxides (NOx), Propane, Propylene, Propylene oxide, SO2, t-Butyl Alcohol, Tert Butylhydroperoxide, Dipropylene Glycol, Methanol, Monopropylene Glycol, Ethanol, Ethyl tert-butyl ether, Butyl alcohol, tert- | 1070 hours, 30 minutes | 455708 |
| 2026-03-30 | INVISTA HOUSTON | 1,3-BUTADIENE, Benzene, Butane, Butenes, All Isomers, Carbon Monoxide, Ethylene (gaseous), Hydrogen Sulfide, Oxides of Nitrogen (NOx), Propane, Propylene, Sulfur dioxide | 26 hours, 0 minutes | 455427 |
| 2026-03-29 | AIR LIQUIDE LARGE INDUSTRIES US | Carbon Monoxide, Nitrogen oxide | 23 hours, 0 minutes | 455453 |
| 2026-03-27 | AIR LIQUIDE LA PORTE ASU AND SMR | Carbon Monoxide, NOx (Startup/Shutdown), Sulfur dioxide, VOC (unspeciated), Ammonia | 24 hours, 0 minutes | 455353 |
| 2026-03-27 | ALBEMARLE PASADENA PLANT | 2,3-dimethylbutane, Cyclohexane, decane, docasane, Dodecane, Hexadecane, Hexane, n, hexene-1, Icosanes/C20 Hydrocarbons, Isohexane, Isopentane, Methylcyclopentane, Octadecane, Octane, Octene, tetracosane, Tetradecane, Toluene, VOC (Unspecified) | 66 hours, 0 minutes | 455356 |
| 2026-03-18 | INVISTA HOUSTON | 1,3-BUTADIENE, Benzene, Butanes, Butenes, All Isomers, Carbon Monoxide, Ethylene (gaseous), Hydrogen Sulfide, Oxides of Nitrogen (NOx), Propane, Propylene, Sulfur dioxide | 657 hours, 7 minutes | 454883 |
| 2026-03-16 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, Propane | 8 hours, 0 minutes | 454777 |
| 2026-03-15 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 67 hours, 0 minutes | 454733 |
| 2026-03-12 | MB NORTH TERMINAL | Butane, N-, hexanes +, Isobutane, pentane, iso-, Pentane, N-, Propane | 2 hours, 36 minutes | 454573 |
| 2026-03-12 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | t-Butyl Alcohol, Acetone, Butane, N-, Carbon Monoxide, Hexane, Isobutane, Isobutylene, NOX, Propane, Propylene, Propylene oxide, SO2, Tert Butylhydroperoxide, Butyl alcohol, tert-, Nitrogen Oxides (NOx), Acetic acid, Dipropylene Glycol, Dipropylene Glycol Monomethyl Ether, Ethanol, Ethyl tert-butyl ether, Ethylene, Formic acid, Isobutylene Oxide, Isopropanol, Methanol, Methyl ethyl ketone (MEK), Monopropylene Glycol, MTBE, Octane, Propan-2-ol, 1-methoxy-, Propylene (Propene), Tripropylene Glycol, Unspeciated VOCs, Methyl ethyl ketone | 504 hours, 7 minutes | 454654 |
| 2026-03-06 | LUBRIZOL DEER PARK | Hydrogen Sulfide | 3 hours, 3 minutes | 454270 |
| 2026-03-04 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, Propane | 95 hours, 0 minutes | 454122 |
| 2026-03-03 | MONT BELVIEU RAIL RACK | i-butane, Propane, Propylene | 7 hours, 0 minutes | 454004 |
| 2026-03-03 | BAYPORT POLYMERS | Butane, butene-1, Carbon Monoxide, Ethylene (gaseous), Hexane, n, NOX, Propane | 45 hours, 0 minutes | 453950 |
| 2026-03-01 | COVESTRO INDUSTRIAL PARK BAYTOWN | Chlorobenzene | 0 hours, 30 minutes | 453898 |
| 2026-02-25 | VALERO HOUSTON REFINERY | Butadiene, 1-3, Butene1_Isobutene, C5 Plus, Carbon Monoxide, Cis-2-butene, Ethylene, Hydrogen Sulfide, Isobutane, n-butane, Nitrogen Oxides (NOx), Particulate Matter, Propane, N-, Propylene, Sulfur dioxide, Trans-2-butene, Butane, N-, Propane | 17 hours, 44 minutes | 453690 |
| 2026-02-24 | GULF COAST FRACTIONATORS | C6+, Carbon Monoxide, Isobutane, n-butane, n-pentane, Nitrogen Oxides, pentane, iso-, Propane | 87 hours, 0 minutes | 453679 |
| 2026-02-23 | EXXON MOBIL CHEMICAL BAYTOWN OLEFINS PLANT | 1-Butene + Isobutylene, Acetylene, Benzene, Butadiene, 1-3, C5+ (not including benzene), Carbon Monoxide, Cis-2-butene, Ethylene (gaseous), Isobutane, n-butane, Nitrogen Oxides (NOx), Propane, Propylene (Propene), Trans-2-butene, Amylenes, C10s, Cyclopentadiene, Indene, Isoprene, Methyl Styrene, Methylcyclopentadiene, Naphthalene, Other C5s, Other C7s, Other C8s, Other C9s, Piperylene, Styrene, Toluene | 7 hours, 47 minutes | 453564 |
| 2026-02-20 | CLEAR LAKE PLANT | Ethylene (gaseous), Ethylene oxide | 0 hours, 4 minutes | 453456 |
| 2026-02-19 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, NOX, Pentane, N-, Propane | 4 hours, 0 minutes | 453389 |
| 2026-02-18 | COLLOIDS POLYMER COMPOUNDING FACILITY | Opacity | 0 hours, 50 minutes | 453304 |
| 2026-02-18 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 4 hours, 0 minutes | 452918 |
| 2026-02-17 | MB FRAC I II AND III | Butane, i, Butane, N-, C6+, Carbon Monoxide, Isopentane, Nitrogen Oxides (NOx), Pentane, N- | 3 hours, 0 minutes | 453222 |
| 2026-02-13 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Isobutane, Isobutylene, Nitrogen oxide, Propane, Propylene (Propene), Sulfur dioxide | 100 hours, 0 minutes | 453119 |
| 2026-02-12 | GULF COAST FRACTIONATORS | Pentane | 8 hours, 0 minutes | 453114 |
| 2026-02-09 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane, Propylene | 8 hours, 0 minutes | 452874 |
| 2026-02-08 | AIR PRODUCTS LA PORTE PLANT | Carbon Monoxide, NOX, Sulfur dioxide, VOC | 2162 hours, 0 minutes | 452148 |
| 2026-02-08 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Propylene (Propene) | 1 hours, 32 minutes | 452866 |
| 2026-02-06 | INEOS AMERICAS PASADENA SITE | Propylene (Propene) | 20 hours, 0 minutes | 452807 |
| 2026-02-06 | MONT BELVIEU COMPLEX | Carbon Monoxide, Nitrogen oxide, Butane, N-, C6+, Isobutane, Isopentane, Pentane, N-, Propane, Nitrogen Oxides (NOx) | 8 hours, 0 minutes | 452886 |
| 2026-02-05 | INEOS AMERICAS PASADENA SITE | Smoke | 1 hours, 0 minutes | 452767 |
| 2026-02-04 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Acetic acid, Butyl alcohol, tert-, Dipropylene Glycol, Formic acid, Isobutylene, Monopropylene Glycol, Tripropylene Glycol | 1 hours, 40 minutes | 452679 |
| 2026-02-01 | KURARAY LA PORTE | Ethylene | 0 hours, 6 minutes | 452488 |
| 2026-01-28 | INEOS AMERICAS PASADENA SITE | Benzene, Carbon Monoxide, Nitrogen Oxides (NOx), Smoke | 6 hours, 0 minutes | 452368 |
| 2026-01-26 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3 Butadiene, Acetylene, Benzene, Butane, Butene, Carbon Monoxide, Ethylene, Heptane (or n-), Hexane, Nitrogen Oxides, Octane, Pentane, Propane, Propylene, Styrene, Toluene, Unspeciated VOCs, Xylene | 9 hours, 0 minutes | 452216 |
| 2026-01-26 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | Benzene, Cyclopentane, Heptane (or n-), Hexane, Toluene, Unspeciated VOCs | 21 hours, 30 minutes | 452267 |
| 2026-01-26 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3 Butadiene, Isobutane, Isobutene | 1 hours, 22 minutes | 452164 |
| 2026-01-26 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | Carbon Monoxide, Nitrogen Oxides (NOx) | 24 hours, 0 minutes | 452251 |
| 2026-01-25 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 3 hours, 0 minutes | 451991 |
| 2026-01-25 | DEER PARK OIL REFINERY | 1,3-BUTADIENE, Butane, C5+, Carbon Monoxide, Cis-2-butene, Ethene, Hydrogen Sulfide, Isobutane, NOX, Propylene (Propene), Sulfur dioxide, Trans-2-butene, 1-Butene, Isobutene | 14 hours, 30 minutes | 452158 |
| 2026-01-22 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Opacity, Propane, Propylene (Propene), VOC | 21 hours, 41 minutes | 452060 |
| 2026-01-21 | GALENA PARK TERMINAL | 1,3-BUTADIENE, 1-Butene, Butane, N-, Ethane, Isobutane, Propane | 50 hours, 0 minutes | 452341 |
| 2026-01-20 | ALBEMARLE PASADENA PLANT | 24 hours, 0 minutes | 451977 | |
| 2026-01-18 | KANEKA PASADENA SITE | Chlorine | 0 hours, 10 minutes | 451792 |
| 2026-01-18 | GALENA PARK TERMINAL | 1,3-BUTADIENE, 1-Butene, Butane, N-, Ethane, Isobutane, Isopentane, Pentane, N-, Propane | 16 hours, 0 minutes | 452340 |
| 2026-01-16 | LYONDELLBASELL SYNGAS | R-134A Refrigerant | 0 hours, 19 minutes | 451800 |
| 2026-01-16 | VALMONT UNITED GALVANIZING | Ammonium chloride, HPV PARTICULATE MATTER < 10 UM, Particulate Matter, Zinc chloride, zinc oxide | 72 hours, 0 minutes | 444633 |
| 2026-01-15 | MONT BELVIEU COMPLEX | Nitrogen Oxides (NOx) | 24 hours, 0 minutes | 451784 |
| 2026-01-14 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen oxide, Propane, Propylene (Propene), VOC, Propylene | 3 hours, 15 minutes | 451673 |
| 2026-01-12 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 2 hours, 0 minutes | 451361 |
| 2026-01-12 | INEOS POLYETHYLENE NORTH AMERICA LA PORTE PLANT | Ethylene, Isobutane | 4 hours, 36 minutes | 451600 |
| 2026-01-11 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 415 hours, 0 minutes | 451520 |
| 2026-01-09 | LUBRIZOL DEER PARK | Hydrogen Sulfide, Sulfur dioxide | 23 hours, 1 minutes | 451474 |
| 2026-01-08 | EXXONMOBIL CHEMICAL BAYTOWN CHEMICAL PLANT | Methyl chloride | 7 hours, 40 minutes | 451463 |
| 2025-12-31 | INVISTA HOUSTON | Benzene, Butanes, Butenes, All Isomers, Carbon Monoxide, Ethylene, gaseous, Hydrogen Sulfide, Oxides of Nitrogen (NOx), Propane, Propylene, Sulfur dioxide | 3 hours, 4 minutes | 451159 |
| 2025-12-31 | INEOS AMERICAS PASADENA SITE | Propylene (Propene) | 1 hours, 0 minutes | 451562 |
| 2025-12-29 | BLUE TIDE BAYTOWN | Ammonia, Carbon Monoxide, Hydrogen Sulfide, Nitrogen Oxides (NOx), Sulfur dioxide, Volatile Organic Compounds | 18 hours, 44 minutes | 453463 |
| 2025-12-29 | EXXON MOBIL CHEMICAL BAYTOWN OLEFINS PLANT | Acetylene, Benzene, Butadiene, 1-3, C5+ (not including benzene), Carbon Monoxide, Cis-2-butene, Ethylene (gaseous), Isobutane, Isobutene, n-butane, Nitrogen Oxides (NOx), Propane, Propylene (Propene), Trans-2-butene | 0 hours, 59 minutes | 451122 |
| 2025-12-27 | CONTANDA JACINTOPORT TERMINAL | VOC | 264 hours, 0 minutes | 450993 |
| 2025-12-24 | DEER PARK OIL REFINERY | 1,3-BUTADIENE, Butane, butene-1, C5+, Carbon Monoxide, Cis-2-butene, Ethylene, Hydrogen Sulfide, Isobutane, Isobutene, NOX, Propane, Propylene (Propene), Sulfur dioxide, Trans-2-butene | 8 hours, 12 minutes | 450977 |
| 2025-12-24 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Acetic acid, Acetone, Butane, N-, Formic acid, Isobutane, Isobutylene, Isobutylene Oxide, Methanol, Methyl ethyl ketone (MEK), Propane, Propylene oxide, t-Butyl Alcohol | 33 hours, 5 minutes | 450981 |
| 2025-12-22 | INEOS AMERICAS PASADENA SITE | Propane, Propylene (Propene) | 962 hours, 0 minutes | 460152 |
| 2025-12-21 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen oxide, Propane, Propylene (Propene), Sulfur dioxide | 191 hours, 0 minutes | 450878 |
| 2025-12-19 | LUBRIZOL DEER PARK | 3-Methyl-Pentane, Butenes, All Isomers, hexanes +, Isobutane, Neopentane, Pentenes, Propylene (Propene) | 42 hours, 3 minutes | 450739 |
| 2025-12-19 | GALENA PARK TERMINAL | Benzene, Diesel fuel, Other | 2 hours, 45 minutes | 450788 |
| 2025-12-18 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 7 hours, 59 minutes | 450602 |
| 2025-12-17 | EQUISTAR CHEMICALS LA PORTE COMPLEX | Carbon Monoxide, NOX, Ethylene (gaseous), Propylene | 3 hours, 49 minutes | 450530 |
| 2025-12-17 | PASADENA PERFORMANCE PRODUCTS | Butane, N-, butene c-2, butene-1, Carbon Monoxide, Ethylene (gaseous), hexene-1, Isobutane, n-hexane - 110543, Oxides of Nitrogen (NOx), Propane, Trans-butene-2 | 136 hours, 52 minutes | 450581 |
| 2025-12-16 | CHANNELVIEW PEAKING FACILITY | CO, NH3, NOX, Opacity | 240 hours, 0 minutes | 450168 |
| 2025-12-15 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 1 hours, 0 minutes | 450087 |
| 2025-12-15 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 1,3-BUTADIENE, Acetylene, Benzene, Butane, Butene, Carbon Monoxide, Cyclopentadiene, Ethylene (gaseous), Hexene, NOX, Pentadiene, Pentenes, Propane, Propylene (Propene), Toluene, Xylene | 8 hours, 30 minutes | 450152 |
| 2025-12-11 | AIR LIQUIDE LA PORTE ASU AND SMR | Carbon Monoxide, NOx (Startup/Shutdown), Sulfur dioxide, VOC (unspeciated), Ammonia | 27 hours, 0 minutes | 450103 |
| 2025-12-08 | DEER PARK OIL REFINERY | 1-Butene, Butane, C5+, Carbon Monoxide, Cis-2-butene, Ethene, Hydrogen Sulfide, Isobutane, Isobutene, NOX, Propane, Propylene (Propene), Sulfur dioxide, Trans-2-butene | 2 hours, 14 minutes | 449904 |
| 2025-12-08 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | butenes, Propylene | 2 hours, 25 minutes | 449916 |
| 2025-12-07 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | Nitrogen Oxides (NOx), Carbon Monoxide | 23 hours, 0 minutes | 449871 |
| 2025-12-07 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 9 hours, 0 minutes | 449896 |
| 2025-12-06 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3 Butadiene, 2-Butene-trans, Acetylene, Benzene, Butane, i, Butane, N-, butene c-2, Butene1_Isobutene, Carbon Monoxide, Cycloheptane, Ethylene (gaseous), Heptane (or n-), Hexane, n, Isoprene, NOX, Pentadiene, Pentane, Propane, Propylene (Propene), Styrene, Toluene, Unspeciated VOCs, Xylene, 2-Butene-cis, Propylene | 5 hours, 0 minutes | 449870 |
| 2025-12-04 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 240 hours, 0 minutes | 449758 |
| 2025-12-04 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 360 hours, 0 minutes | 449861 |
| 2025-12-03 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | Acetylene, Benzene, Butadiene, 1-3, Butane, Butene, Carbon Monoxide, Ethylbenzene, Ethylene (gaseous), Heptene, Isoprene, Nitrogen Oxides (NOx), Pentane, Pentene, Propane, Propylene, Styrene, Toluene, VOC (unspeciated), Xylene, Butanes, Butenes, All Isomers, Cyclopentadiene, Hexene, Pentadiene, Xylenes | 16 hours, 12 minutes | 449789 |
| 2025-12-02 | DEER PARK OIL REFINERY | 1,3-BUTADIENE, Butane, butene-1, C5+, Carbon Monoxide, Cis-2-butene, Ethylene, Hydrogen Sulfide, Isobutane, Isobutene, NOX, Propane, Propylene (Propene), Sulfur dioxide, Trans-2-butene | 4 hours, 10 minutes | 449734 |
| 2025-12-01 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, NOX, Propane, Propylene (Propene) | 82 hours, 0 minutes | 449655 |
| 2025-11-30 | MONT BELVIEU COMPLEX | Carbon Monoxide, Nitrogen Oxides (NOx), Butane, N-, C6+, Isobutane, Isopentane, Pentane, N-, Propane | 17 hours, 0 minutes | 449588 |
| 2025-11-30 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 6 hours, 25 minutes | 449589 |
| 2025-11-29 | MB FRAC I II AND III | Butanes, Carbon Monoxide, Hexane Plus, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene (Propene) | 30 hours, 0 minutes | 449587 |
| 2025-11-23 | EQUISTAR CHEMICALS LA PORTE COMPLEX | Carbon Monoxide, NOX, Ethylene (gaseous), Propylene | 0 hours, 18 minutes | 449415 |
| 2025-11-23 | DEER PARK PVC | Vinyl Chloride | 1 hours, 3 minutes | 449420 |
| 2025-11-22 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 240 hours, 0 minutes | 449314 |
| 2025-11-21 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 92 hours, 59 minutes | 449371 |
| 2025-11-21 | HOUSTON PLANT | 1,3-BUTADIENE, Butanes, butenes, Ethylene, Propane, Propylene | 744 hours, 46 minutes | 450787 |
| 2025-11-21 | NOURYON FUNCTIONAL CHEMICALS BATTLEGROUND | Heptane (or n-), Isopar E | 1 hours, 0 minutes | 449411 |
| 2025-11-20 | CHANNELVIEW PEAKING FACILITY | CO, NH3, NOX, Opacity | 264 hours, 0 minutes | 449259 |
| 2025-11-20 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, NOX, Propane, Propylene (Propene) | 71 hours, 0 minutes | 449342 |
| 2025-11-20 | DEER PARK OIL REFINERY | Carbon Monoxide, NOX, Sulfur dioxide | 109 hours, 30 minutes | 449394 |
| 2025-11-19 | DEER PARK OIL REFINERY | 1,3-BUTADIENE, 1-Butene, Butane, C5+, Carbon Monoxide, Cis-2-butene, Ethylene, Hydrogen Sulfide, Isobutane, Isobutene, NOX, Propane, Propylene (Propene), Sulfur dioxide, Trans-2-butene | 6 hours, 16 minutes | 449286 |
| 2025-11-19 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen oxide, Propane, Propylene (Propene), Sulfur dioxide | 117 hours, 0 minutes | 449327 |
| 2025-11-15 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, Hexane Plus, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene | 35 hours, 0 minutes | 449004 |
| 2025-11-14 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 7 hours, 15 minutes | 448996 |
| 2025-11-13 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | Carbon Monoxide, Nitrogen Oxides (NOx), Sulfur dioxide, VOCs | 36 hours, 0 minutes | 448901 |
| 2025-11-13 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 6 hours, 4 minutes | 448922 |
| 2025-11-11 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, NOX, Propane, Propylene (Propene) | 121 hours, 0 minutes | 448821 |
| 2025-11-10 | LUBRIZOL DEER PARK | Butenes, All Isomers, hexanes +, Isobutane, Pentenes | 0 hours, 19 minutes | 448783 |
| 2025-11-10 | CELANESE CLEAR LAKE PLANT | Carbon Monoxide, Dimethyl ether, Methanol, Methyl formate, Oxides of Nitrogen (NOx), Propane | 20 hours, 5 minutes | 448781 |
| 2025-11-10 | LUBRIZOL DEER PARK | 3-Methyl-Pentane, Butane, Butenes, All Isomers, hexanes +, Isobutane, Neopentane, Pentenes, Propylene (Propene) | 6 hours, 30 minutes | 448784 |
| 2025-11-08 | BRASKEM AMERICA | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene | 1 hours, 16 minutes | 448730 |
| 2025-11-04 | AIR PRODUCTS LA PORTE PLANT | Lube oil | 0 hours, 15 minutes | 448630 |
| 2025-11-03 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen oxide, Propane, Propylene (Propene), Sulfur dioxide, Butane, Isobutane, Isobutylene | 86 hours, 0 minutes | 448463 |
| 2025-11-03 | GULF COAST FRACTIONATORS | Carbon Monoxide, Nitrogen Oxides, Butane, N-, C6+, Isobutane, Isopentane, Pentane, N-, Propane | 13 hours, 59 minutes | 448533 |
| 2025-10-28 | BAYPORT FACILITY | 1-octene | 4 hours, 12 minutes | 448249 |
| 2025-10-27 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 0 hours, 56 minutes | 448256 |
| 2025-10-23 | ENTERPRISE PASADENA PLANT | Ammonia, Carbon Monoxide, Nitrogen oxide, Particulate Matter, Sulfur dioxide, VOC, C5+ (not including benzene), Isobutane, Isobutylene, Nitrogen Oxides (NOx) | 14 hours, 15 minutes | 448028 |
| 2025-10-23 | INEOS AMERICAS PASADENA SITE | Propane, Propylene (Propene) | 3 hours, 36 minutes | 448041 |
| 2025-10-22 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Isobutane, Isobutylene, Nitrogen oxide, Propane, Propylene (Propene), Sulfur dioxide | 15 hours, 0 minutes | 447991 |
| 2025-10-21 | PASADENA REFINERY | Benzene, Butanes, Heptane, Hexanes, Octane, Pentanes, Toluene | 479 hours, 0 minutes | 447913 |
| 2025-10-21 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane, VOC | 10 hours, 0 minutes | 447947 |
| 2025-10-20 | GULF COAST FRACTIONATORS | Butane, N-, Hexane, Isobutane, Isopentane, Pentane, N- | 0 hours, 16 minutes | 447843 |
| 2025-10-20 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 116 hours, 0 minutes | 447895 |
| 2025-10-19 | WESTLAKE EPOXY DEER PARK | Isopropyl Ether, Phenol | 0 hours, 30 minutes | 447808 |
| 2025-10-18 | PCI NITROGEN PASADENA | Sulfuric acid | 0 hours, 5 minutes | 447774 |
| 2025-10-17 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 719 hours, 0 minutes | 447643 |
| 2025-10-16 | MONT BELVIEU COMPLEX | Butane, Butane, N-, C6+, Carbon Monoxide, Nitrogen Oxides (NOx), Pentane, Pentane, N-, Propane, NOX | 7 hours, 0 minutes | 447687 |
| 2025-10-14 | BLUE TIDE BAYTOWN | Hydrogen Sulfide, VOCs | 198 hours, 30 minutes | 447630 |
| 2025-10-11 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 1 hours, 0 minutes | 447479 |
| 2025-10-11 | GULF COAST FRACTIONATORS | Carbon Monoxide, Nitrogen Oxides, Butane, N-, C6+, Isobutane, Isopentane, Pentane, N-, Propane, VOC | 7 hours, 0 minutes | 447480 |
| 2025-10-07 | VALERO HOUSTON REFINERY | Carbon Monoxide, Hydrogen Sulfide, Nitrogen Oxides (NOx), Particulate Matter, Sulfur dioxide, Volatile Organic Compounds, Ammonia, Butane, i, Butane, N-, butene c-2, Butene1_Isobutene, Ethylene (gaseous), Pentanes, Propane, Propylene, Trans-butene-2, Cis-2-butene | 6 hours, 0 minutes | 447310 |
| 2025-10-07 | GULF COAST FRACTIONATORS | Butane, N- | 139 hours, 0 minutes | 447354 |
| 2025-10-06 | MONT BELVIEU NGL FRACTIONATION AND STORAGE COMPLEX | Opacity | 0 hours, 37 minutes | 447248 |
| 2025-10-05 | ENTERPRISE MONT BELVIEU COMPLEX | Isobutane, Propane, Propylene (Propene) | 0 hours, 5 minutes | 447146 |
| 2025-10-05 | EXXONMOBIL CHEMICAL MONT BELVIEU PLASTICS PLANT | Butane, N-, butene-1, Hexane, n, hexene-1, Isobutane, Isopentane, n-butanol, Other C6s, Pentane, N-, Toluene | 13 hours, 54 minutes | 447210 |
| 2025-10-04 | MB FRAC I II AND III | Butane, N-, CO, hexanes +, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene | 7 hours, 0 minutes | 447106 |
| 2025-10-04 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Isobutane, Nitrogen oxide, Propane, Propylene (Propene) | 70 hours, 0 minutes | 447108 |
| 2025-10-04 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | C4, C5+ (not including benzene), Carbon Monoxide, Ethylene, NOX, Propane, Propylene (Propene) | 9 hours, 30 minutes | 447109 |
| 2025-09-28 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 0 hours, 30 minutes | 446857 |
| 2025-09-27 | LUBRIZOL DEER PARK | Hydrogen Sulfide, Sulfur dioxide | 37 hours, 45 minutes | 446854 |
| 2025-09-26 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 360 hours, 0 minutes | 446778 |
| 2025-09-25 | LA PORTE VCM PLANT | Vinyl Chloride Monomer | 0 hours, 38 minutes | 446774 |
| 2025-09-24 | LCY ELASTOMERS | 1,3-BUTADIENE, Carbon Monoxide, Nitrogen dioxide, Opacity, Sulfur dioxide, VOC GAS MIXTURE | 3 hours, 47 minutes | 446761 |
| 2025-09-23 | EXXONMOBIL BAYTOWN REFINERY | Carbon disulfide, Carbonyl sulfide, Hydrogen Sulfide, Carbon Monoxide, Nitrogen Oxides (NOx), PM (unspeciated), Sulfur dioxide, VOC (unspeciated), Butane, N-, C5+, Ethylene (gaseous), Isobutane, Propane, Propylene, 1-Butene + Isobutylene, Cis-2-butene, Trans-2-butene, C6+, Isopentane, Pentane, N-, Butadiene, 1-3 | 70 hours, 9 minutes | 446678 |
| 2025-09-23 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3-BUTADIENE, Butane, N-, Butylene, Carbon Monoxide, Cis-2-butene, Isobutane, Nitrogen oxide, Propane, Trans-2-butene, Unspeciated VOCs | 1 hours, 0 minutes | 446684 |
| 2025-09-22 | GALENA PARK TERMINAL | Benzene, Other | 33 hours, 25 minutes | 446606 |
| 2025-09-21 | EXXONMOBIL BAYTOWN REFINERY | Butane, N-, C5+, Carbon Monoxide, Ethylene (gaseous), Hydrogen Sulfide, Isobutane, Nitrogen Oxides (NOx), Propane, Propylene, SULFER DIOXIDE, 1-Butene + Isobutylene, Trans-butene-2, Cis-2-butene, 1,3-BUTADIENE, Butene1_Isobutene, n-butane | 5 hours, 13 minutes | 446527 |
| 2025-09-19 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Isobutane, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 27 hours, 0 minutes | 446518 |
| 2025-09-19 | DEER PARK OIL REFINERY | Butane, butene-1, Carbon Monoxide, Cis-2-butene, Hydrogen Sulfide, Isobutane, NOX, Pentanes, Propane, Propylene (Propene), Sulfur dioxide, Trans-2-butene, Ethylene | 3 hours, 55 minutes | 446522 |
| 2025-09-18 | GULF COAST FRACTIONATORS | Carbon Monoxide, Nitrogen Oxides, Butane, N-, C6+, Isobutane, Isopentane, Pentane, N-, Propane, VOC | 26 hours, 0 minutes | 446488 |
| 2025-09-18 | DEER PARK OIL REFINERY | Butane, butene-1, Carbon Monoxide, Cis-2-butene, Ethylene, Hydrogen Sulfide, Isobutane, NOX, Pentanes, Propane, Propylene (Propene), Sulfur dioxide, Trans-2-butene | 7 hours, 34 minutes | 446487 |
| 2025-09-17 | CONCRETE BATCH PLANT 343W SN 2815 | Cement Dust | 0 hours, 14 minutes | 446388 |
| 2025-09-17 | DEER PARK OIL REFINERY | Butane, Butenes, All Isomers, Carbon Monoxide, Hydrogen Sulfide, Isobutane, NOX, Pentanes, Propane, Propylene (Propene), Sulfur dioxide | 4 hours, 48 minutes | 446420 |
| 2025-09-16 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Pentane, Propane, Propylene (Propene), Sulfur dioxide | 76 hours, 0 minutes | 446305 |
| 2025-09-12 | THERMAL ENERGY TECO | Opacity | 0 hours, 1 minutes | 446176 |
| 2025-09-11 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 41 hours, 24 minutes | 446134 |
| 2025-09-09 | LUBRIZOL DEER PARK | 3-Methyl-Pentane, Butenes, All Isomers, hexanes +, Isobutane, Neopentane, Pentenes, Propylene (Propene) | 5 hours, 56 minutes | 445930 |
| 2025-09-09 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 240 hours, 0 minutes | 445841 |
| 2025-09-08 | MONT BELVIEU COMPLEX | Carbon Monoxide, Nitrogen Oxides (NOx), Butane, N-, C6+, Isobutane, Isopentane, NOX, Pentane, N-, Propane, N- | 6 hours, 30 minutes | 445851 |
| 2025-09-07 | INEOS AMERICAS PASADENA SITE | Benzene, Cumene, DIISOPROPYL, Propane | 21 hours, 0 minutes | 445853 |
| 2025-09-04 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Butyl alcohol, tert-, Carbon Monoxide, Isobutylene, Nitrogen Oxides (NOx), Propane, Propylene, Propylene oxide | 7 hours, 39 minutes | 445754 |
| 2025-09-03 | THERMAL ENERGY TECO | Opacity | 0 hours, 39 minutes | 445689 |
| 2025-08-31 | SEKISUI SPECIALTY CHEMICALS AMERICA PASADENA PLANT | Methanol, Methyl Acetate, Acetaldehyde, Vinyl acetate, NATURAL GAS | 2 hours, 16 minutes | 445525 |
| 2025-08-31 | LYONDELLBASELL ACETYLS | Ethylene, gaseous | 0 hours, 2 minutes | 445522 |
| 2025-08-30 | PASADENA PERFORMANCE PRODUCTS | Butadiene, 1-3, Butane, N-, butene c-2, butene-1, Carbon Monoxide, Ethylene (gaseous), Hexane, n, hexene-1, Isobutane, Oxides of Nitrogen (NOx), Propane, Trans-butene-2 | 62 hours, 15 minutes | 445519 |
| 2025-08-29 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 120 hours, 0 minutes | 445465 |
| 2025-08-29 | KURARAY LA PORTE | Acetaldehyde, Carbon Monoxide, Ethylene, Nitrogen oxide, Vinyl acetate, Acetic acid, Argon | 4 hours, 17 minutes | 445516 |
| 2025-08-26 | KANEKA PASADENA SITE | 1,3-BUTADIENE | 0 hours, 27 minutes | 445351 |
| 2025-08-24 | CLEAN HARBORS DEER PARK | Opacity | 0 hours, 45 minutes | 445260 |
| 2025-08-24 | EQUISTAR CHEMICALS LA PORTE COMPLEX | Carbon Monoxide, Nitrogen oxide, Acetylene, Ethylene (gaseous), Propane, Propylene, NOX, 1,3-BUTADIENE, Benzene, Butane, N-, Cis-butene-2, Isobutane, Isobutene, Other C5's +, Trans-butene-2 | 4 hours, 11 minutes | 445264 |
| 2025-08-23 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 18 hours, 0 minutes | 445248 |
| 2025-08-22 | LUBRIZOL DEER PARK | Chlorine, Hydrochloric acid, Sulfur, Sulfur dioxide | 95 hours, 57 minutes | 445241 |
| 2025-08-22 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Isobutane, Propane, Carbon Monoxide, Nitrogen Oxides (NOx) | 6 hours, 30 minutes | 445246 |
| 2025-08-20 | GULF COAST FRACTIONATORS | Nitrogen Oxides | 24 hours, 0 minutes | 445161 |
| 2025-08-19 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 11 hours, 0 minutes | 444992 |
| 2025-08-19 | CLEAR LAKE PLANT | Isopar H - Heavy Naphtha | 33 hours, 50 minutes | 445138 |
| 2025-08-17 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 126 hours, 0 minutes | 444906 |
| 2025-08-16 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, Hexane Plus, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene | 9 hours, 0 minutes | 444857 |
| 2025-08-16 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Isobutane, Nitrogen oxide, Propane, Propylene (Propene) | 7 hours, 0 minutes | 444860 |
| 2025-08-16 | GULF COAST FRACTIONATORS | Carbon Monoxide, Butane, N-, C6+, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 1 hours, 0 minutes | 444895 |
| 2025-08-15 | GULF COAST FRACTIONATORS | Carbon Monoxide, Nitrogen Oxides, Butane, N-, C6+, Isobutane, Isopentane, Pentane, N-, Propane | 1 hours, 0 minutes | 444826 |
| 2025-08-14 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Carbon Monoxide, Methane, Nitrogen Oxides (NOx), Propane, Propylene, Propylene oxide, t-Butyl Alcohol, Tert Butylhydroperoxide | 10 hours, 10 minutes | 444802 |
| 2025-08-13 | SJRR POWER PEAKING FACILITY | NH3, NOX, Opacity | 240 hours, 0 minutes | 444564 |
| 2025-08-13 | LUBRIZOL DEER PARK | 3-Methyl-Pentane, Butenes, All Isomers, hexanes +, Isobutane, Neopentane, Pentenes, Propylene (Propene) | 83 hours, 9 minutes | 444758 |
| 2025-08-13 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, hexanes +, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene (Propene) | 10 hours, 0 minutes | 444788 |
| 2025-08-12 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 14 hours, 0 minutes | 444687 |
| 2025-08-12 | ENTERPRISE CRUDE HOUSTON STATION | Crude Oil | 147 hours, 54 minutes | 444720 |
| 2025-08-07 | BRASKEM AMERICA | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene | 1 hours, 47 minutes | 444471 |
| 2025-08-05 | ENTERPRISE EAST | Propane, Propylene (Propene) | 1 hours, 0 minutes | 444406 |
| 2025-08-05 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | Benzene, Toluene | 0 hours, 30 minutes | 444356 |
| 2025-08-04 | AIR LIQUIDE LA PORTE ASU AND SMR | Carbon Monoxide, NOx (Startup/Shutdown), Sulfur dioxide, VOC (unspeciated), Ammonia | 38 hours, 0 minutes | 444317 |
| 2025-08-04 | EXXONMOBIL BAYTOWN REFINERY | Ethylene, 1-Butene + Isobutylene, Butane, N-, C5+, Carbon Monoxide, Cis-2-butene, Hydrogen Sulfide, Isobutane, Nitrogen Oxides (NOx), Propane, Propylene, Sulfur dioxide, Trans-2-butene | 8 hours, 59 minutes | 444334 |
| 2025-08-01 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Pentane, Propane, Propylene (Propene), Sulfur dioxide | 76 hours, 0 minutes | 444181 |
| 2025-07-29 | COVESTRO INDUSTRIAL PARK BAYTOWN | Monochlorobenzene | 1 hours, 0 minutes | 444036 |
| 2025-07-28 | AIR LIQUIDE LA PORTE ASU AND SMR | Carbon Monoxide, NOx (Startup/Shutdown), Sulfur dioxide, VOC (unspeciated), Ammonia | 37 hours, 0 minutes | 444006 |
| 2025-07-28 | DEER PARK OIL REFINERY | Butenes, All Isomers | 15 hours, 0 minutes | 444153 |
| 2025-07-27 | MONT BELVIEU RAIL RACK | Propane, Propylene | 72 hours, 0 minutes | 443908 |
| 2025-07-27 | ALBEMARLE PASADENA PLANT | Ethylene (gaseous) | 18 hours, 35 minutes | 443937 |
| 2025-07-27 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane, VOC | 73 hours, 0 minutes | 443941 |
| 2025-07-27 | GULF COAST FRACTIONATORS | Carbon Dioxide, Nitrogen Oxides, VOC | 30 hours, 0 minutes | 444099 |
| 2025-07-27 | MINH FOODS | Anhydrous Ammonia | 0 hours, 40 minutes | 444575 |
| 2025-07-26 | EXXONMOBIL BAYTOWN REFINERY | 2,3-dimethylbutane, 2,3-Dimethylpentane, 2-Methylhexane, 2-methylpentane, 3-methylhexane, 3-methylpentane, Benzene, C10s, C8s, C9s, Methylcyclopentane, n-Heptane, N-Hexane, Toluene, Unspeciated VOCs | 80 hours, 15 minutes | 443905 |
| 2025-07-25 | AIR LIQUIDE LA PORTE ASU AND SMR | Carbon Monoxide, NOx (Startup/Shutdown), Sulfur dioxide, VOC (unspeciated), Ammonia | 24 hours, 0 minutes | 443886 |
| 2025-07-25 | GULF COAST FRACTIONATORS | Butane, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, Propane, VOC | 9 hours, 0 minutes | 443901 |
| 2025-07-25 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane | 10 hours, 0 minutes | 443900 |
| 2025-07-22 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 3 hours, 0 minutes | 443733 |
| 2025-07-22 | PASADENA PERFORMANCE PRODUCTS | Butane, N-, butene c-2, butene-1, Carbon Monoxide, Ethylene (gaseous), Isobutane, Oxides of Nitrogen (NOx), Propane, Trans-butene-2 | 6 hours, 0 minutes | 443749 |
| 2025-07-22 | AIR LIQUIDE LARGE INDUSTRIES US | Carbon Monoxide, Nitrogen oxide, VOC( unspeciated) | 17 hours, 0 minutes | 443730 |
| 2025-07-17 | EXXON MOBIL CHEMICAL BAYTOWN OLEFINS PLANT | 1,3 Butadiene, Acetylene, Benzene, Butane, N-, Carbon Monoxide, Cis-2-butene, Ethylene (gaseous), Isobutane, Isobutene, Nitrogen Oxides, Other C5s, Propane, Propylene (Propene), Trans-2-butene, 1,3-BUTADIENE, C5+ (not including benzene) | 2 hours, 2 minutes | 443577 |
| 2025-07-16 | GALENA PARK TERMINAL | Opacity | 0 hours, 15 minutes | 443507 |
| 2025-07-16 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Propylene (Propene), Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, VOC | 15 hours, 2 minutes | 443519 |
| 2025-07-16 | NOURYON FUNCTIONAL CHEMICALS BATTLEGROUND | Opacity | 72 hours, 0 minutes | 443425 |
| 2025-07-14 | ROHM AND HAAS TEXAS DEER PARK PLANT | Hydrogen cyanide | 0 hours, 39 minutes | 443406 |
| 2025-07-14 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, Nitrogen oxide, Propane, Propylene (Propene) | 98 hours, 0 minutes | 443434 |
| 2025-07-14 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3-BUTADIENE, Butane, N-, Butenes, All Isomers, Butylene, Carbon Monoxide, Isobutane, Nitrogen Oxides (NOx), Propane, Unspeciated VOCs | 3 hours, 0 minutes | 443432 |
| 2025-07-13 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 12 hours, 0 minutes | 443341 |
| 2025-07-09 | EXXONMOBIL BAYTOWN REFINERY | 1-Butene + Isobutylene, Butane, N-, C5+, Carbon Monoxide, Ethylene (gaseous), Hydrogen Sulfide, Isobutane, Nitrogen Oxides (NOx), Propane, Propylene, Sulfur dioxide, Trans-2-butene | 28 hours, 59 minutes | 443236 |
| 2025-07-09 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Pentane, Propane, Propylene (Propene), Sulfur dioxide | 94 hours, 0 minutes | 443185 |
| 2025-07-09 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 164 hours, 0 minutes | 443214 |
| 2025-07-07 | EXXONMOBIL BAYTOWN REFINERY | Butane, Pentane | 0 hours, 17 minutes | 443117 |
| 2025-07-07 | GULF COAST FRACTIONATORS | Nitrogen Oxides | 15 hours, 0 minutes | 443098 |
| 2025-07-04 | MINH FOODS | Anhydrous ammonia | 0 hours, 15 minutes | 444556 |
| 2025-07-02 | GULF COAST FRACTIONATORS | Nitrogen Oxides | 11 hours, 0 minutes | 442954 |
| 2025-07-01 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane | 4 hours, 0 minutes | 442870 |
| 2025-06-30 | EXXONMOBIL BAYTOWN REFINERY | 1,3-BUTADIENE, Butane, N-, Butene1_Isobutene, C5+, Carbon Monoxide, Cis-2-butene, Ethylene (gaseous), Hydrogen Sulfide, Isobutane, Nitrogen Oxides (NOx), Propane, Propylene, SULFER DIOXIDE, Trans-butene-2, Sulfur dioxide | 50 hours, 59 minutes | 442829 |
| 2025-06-30 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Pentane, Propane, Propylene (Propene), Sulfur dioxide | 34 hours, 0 minutes | 442836 |
| 2025-06-30 | BLUE TIDE BAYTOWN | Sulfur dioxide | 1128 hours, 0 minutes | 442871 |
| 2025-06-27 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane, VOC | 238 hours, 0 minutes | 442757 |
| 2025-06-24 | ARCANUM BAYTOWN SITE | 1-Butene | 2 hours, 0 minutes | 442570 |
| 2025-06-20 | GULF COAST FRACTIONATORS | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, N-, Propane | 14 hours, 0 minutes | 442382 |
| 2025-06-18 | PASADENA REFINERY | Benzene, Hexanes (any isomer), Naphtha, Toluene, Xylene (mixed isomers) | 19 hours, 30 minutes | 442279 |
| 2025-06-18 | LYONDELL CHEMICAL CHANNELVIEW | Benzene, Ethyl Benzene | 12 hours, 30 minutes | 442288 |
| 2025-06-17 | CLEAR LAKE PLANT | Ethylene oxide | 14 hours, 15 minutes | 442206 |
| 2025-06-17 | BAYPORT POLYMERS | 1-hexene, Butane, Butene, Carbon Monoxide, Ethylene (gaseous), Hexane, n, NOX, Propane, SO2 | 24 hours, 0 minutes | 442318 |
| 2025-06-15 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Pentane, Propane, Propylene (Propene), Sulfur dioxide | 101 hours, 0 minutes | 442052 |
| 2025-06-14 | LYONDELL CHEMICAL CHANNELVIEW | Acetic acid, Butyric acid, Isobutanol, Isobutylene, Isobutyraldehyde, tertiary butyl alcohol, VOC( unspeciated) | 5 hours, 50 minutes | 441998 |
| 2025-06-12 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane, NOX | 25 hours, 0 minutes | 441915 |
| 2025-06-12 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3-BUTADIENE, Carbon Monoxide, Nitrogen Oxides (NOx) | 5 hours, 47 minutes | 441937 |
| 2025-06-09 | AIR LIQUIDE LARGE INDUSTRIES US | Carbon Monoxide, Nitrogen oxide, VOC( unspeciated) | 24 hours, 0 minutes | 441791 |
| 2025-06-09 | GULF COAST FRACTIONATORS | Nitrogen Oxides | 96 hours, 0 minutes | 441812 |
| 2025-06-06 | BAYPORT FACILITY | Opacity | 0 hours, 20 minutes | 441677 |
| 2025-06-05 | WHITE CEMENT GRINDING PLANT | Cement Dust | 0 hours, 18 minutes | 441699 |
| 2025-06-05 | GULF COAST FRACTIONATORS | Butane, i, Butane, N-, Carbon Monoxide, Isopentane, Nitrogen Oxides, Pentane, N-, Propane, VOC | 192 hours, 0 minutes | 441577 |
| 2025-06-02 | INTERCONTINENTAL TERMINALS DEER PARK TERMINAL | Benzene | 1 hours, 15 minutes | 441425 |
| 2025-06-01 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | Nitrogen oxide | 24 hours, 0 minutes | 441421 |
| 2025-05-31 | MONT BELVIEU COMPLEX | Carbon Monoxide, Nitrogen Oxides (NOx), Butane, Isobutane, Butane, N-, C6+, Isopentane, Pentane, N-, Propane | 61 hours, 24 minutes | 441397 |
| 2025-05-30 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, Hexane Plus, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentanes, Propane, Propylene (Propene) | 4 hours, 0 minutes | 441396 |
| 2025-05-27 | SEKISUI SPECIALTY CHEMICALS AMERICA PASADENA PLANT | Methanol, Methyl Acetate | 0 hours, 7 minutes | 441121 |
| 2025-05-27 | EXXONMOBIL BAYTOWN REFINERY | Ammonia, Benzene, Carbon Monoxide, Hydrogen cyanide, Nitrogen Oxides (NOx), Particulate Matter, Sulfur dioxide, Sulfuric acid, Unspeciated VOCs | 46 hours, 59 minutes | 441388 |
| 2025-05-26 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane | 6 hours, 10 minutes | 441102 |
| 2025-05-26 | CELANESE CLEAR LAKE PLANT | Hydrogen Iodide, Iodine | 9 hours, 28 minutes | 441141 |
| 2025-05-24 | GULF COAST FRACTIONATORS | Butane, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen oxide, Pentane, Propane | 38 hours, 0 minutes | 441032 |
| 2025-05-23 | MORGANS POINT COMPLEX | Butane, N-, Carbon Monoxide, Ethylene (gaseous), Isobutane, Isobutylene, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 19 hours, 56 minutes | 441019 |
| 2025-05-23 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 124 hours, 0 minutes | 441023 |
| 2025-05-23 | GULF COAST FRACTIONATORS | 4 hours, 0 minutes | 441026 | |
| 2025-05-22 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | Butanes, Butene, Carbon Monoxide, Decenes, Ethylene, Hexene, Nitrogen Oxides (NOx), Octene, Propane | 1 hours, 20 minutes | 440960 |
| 2025-05-21 | EXXON MOBIL CHEMICAL BAYTOWN OLEFINS PLANT | 1,3 Butadiene, Acetylene, Amylenes, Benzene, Butane, N-, Carbon Monoxide, Cis-2-butene, Cyclopentadiene, Ethylene (gaseous), Isobutane, Isobutene, Isoprene, methyl cyclopentadiene, Nitrogen Oxides, Other C5s, Other C6s, Other C7s, Other C8s, Piperylene, Propane, Propylene (Propene), Styrene, Toluene, Trans-2-butene | 15 hours, 49 minutes | 440905 |
| 2025-05-21 | PASADENA TERMINAL | Gasoline | 44 hours, 0 minutes | 440949 |
| 2025-05-19 | EXXONMOBIL BAYTOWN REFINERY | Carbonyl sulfide, Hydrogen Sulfide | 16 hours, 42 minutes | 440869 |
| 2025-05-16 | GULF COAST FRACTIONATORS | Butane, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, Propane, Propylene (Propene) | 184 hours, 0 minutes | 440744 |
| 2025-05-15 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Acetone, Butyl alcohol, tert-, Carbon Monoxide, Methanol, Nitrogen Oxides (NOx), Propane, Propylene, Propylene oxide | 6 hours, 10 minutes | 440710 |
| 2025-05-14 | GULF COAST FRACTIONATORS | Butane, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, Propane | 3 hours, 0 minutes | 440642 |
| 2025-05-11 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 1,3-BUTADIENE, Acetylene, Benzene, Butane, Butene, Carbon Monoxide, Cyclopentadiene, Ethylene (gaseous), Hexene, NOX, Pentadiene, Pentenes, Propane, Propylene (Propene), Toluene, Xylene | 90 hours, 0 minutes | 440413 |
| 2025-05-11 | LYONDELL CHEMICAL CHANNELVIEW | Butane, N-, Carbon Monoxide, Ethylene, Nitrogen Oxides (NOx), Propane, Propylene, Propylene oxide | 1 hours, 20 minutes | 440532 |
| 2025-05-10 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, Nitrogen oxide, Propane, Propylene (Propene) | 151 hours, 0 minutes | 440486 |
| 2025-05-05 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 1,3-BUTADIENE, Acetylene, Benzene, Butane, Butene, Carbon Monoxide, Cyclopentadiene, Ethylene (gaseous), Hexene, NOX, Pentadiene, Pentenes, Propane, Propylene (Propene), Toluene, Xylene | 22 hours, 30 minutes | 440253 |
| 2025-05-05 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen oxide, Pentane, Propane, Propylene (Propene), Sulfur dioxide | 435 hours, 0 minutes | 440302 |
| 2025-05-03 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Acetone, Butyl alcohol, tert-, Carbon Monoxide, Isobutylene, Nitrogen Oxides (NOx), Propane, Propylene, Propylene oxide, Tert Butylhydroperoxide | 2 hours, 30 minutes | 440184 |
| 2025-05-01 | BLUE TIDE BAYTOWN | Sulfur dioxide | 1200 hours, 0 minutes | 440116 |
| 2025-04-29 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3 Butadiene | 0 hours, 3 minutes | 440039 |
| 2025-04-26 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 14 hours, 0 minutes | 439877 |
| 2025-04-26 | COVESTRO INDUSTRIAL PARK BAYTOWN | Ammonia, Phosgene | 0 hours, 1 minutes | 439878 |
| 2025-04-25 | MONT BELVIEU FACILITY | Butadiene, 1-3, Butane, Butanes, Butene, Isobutene, Other Organics, Pentanes, Propane, Propylene (Propene) | 0 hours, 30 minutes | 439874 |
| 2025-04-25 | BRASKEM AMERICA | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene | 2 hours, 3 minutes | 439872 |
| 2025-04-24 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX | 1,3-BUTADIENE, Acetylene, Benzene, Butenes, All Isomers, Carbon Monoxide, Ethylene, Heptane, Isobutene, Nitrogen Oxides (NOx), Nonane, Octane, Opacity, Propylene, Toluene, Xylene | 40 hours, 30 minutes | 439822 |
| 2025-04-23 | MONT BELVIEU COMPLEX | Propylene | 5 hours, 0 minutes | 439925 |
| 2025-04-22 | ENTERPRISE EAST | Butane, C5+, Carbon Monoxide, Isobutane, Nitrogen Oxides (NOx), Propane | 16 hours, 45 minutes | 439774 |
| 2025-04-16 | EXXON MOBIL CHEMICAL BAYTOWN OLEFINS PLANT | 1,3 Butadiene, 1-Butene + Isobutylene, Acetylene, Amylenes, Benzene, Butane, N-, butene c-2, C10s, CO, Cyclopentadiene, Ethylene, Indene, Isobutane, Isoprene, Methyl Styrene, Methylcyclopentadiene, Naphthalene, NOX, Other C5's, Other C6's, Other C7s, Other C8s, Other C9s, Piperylene, Propane, Propylene (Propene), Styrene, Toluene, Trans-2-butene, decane, Dodecane, Heptadecane, Hexadecane, Icosanes/C20 Hydrocarbons, Nitrogen Oxides (NOx), Nonadecane, Nonane, Octadecane, Octane, pentadecane, PM (unspeciated), Sulfur dioxide, Tetradecane, Tridecane, undecane, VOC( unspeciated), 1-Butene, Cyclohexane, Hexane, Isobutylene, Pentane, N-, Pentenes, Propylene, Xylene, Ethylbenzene, VOC (unspeciated), Cis-2-butene, methyl cyclopentadiene, Other C5s, Other C6s | 49 hours, 53 minutes | 439486 |
| 2025-04-16 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Nitrogen oxide, Pentane, Propane, Propylene (Propene), Sulfur dioxide | 207 hours, 0 minutes | 439476 |
| 2025-04-13 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 54 hours, 0 minutes | 439241 |
| 2025-04-08 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Isobutane, Nitrogen oxide, Butane, Isobutylene, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 49 hours, 0 minutes | 439104 |
| 2025-04-06 | LA PORTE VCM PLANT | 1,2-Dichloroethane, Hydrochloric acid, Vinyl Chloride Monomer | 0 hours, 30 minutes | 438869 |
| 2025-04-02 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, Nitrogen oxide, Propane, Propylene (Propene), Nitrogen Oxides (NOx) | 96 hours, 0 minutes | 438717 |
| 2025-03-31 | EQUISTAR CHEMICALS LA PORTE COMPLEX | Carbon Monoxide, NOX, Ethylene (gaseous), Propylene, Polymer | 5 hours, 15 minutes | 438517 |
| 2025-03-29 | EXXON MOBIL CHEMICAL BAYTOWN OLEFINS PLANT | 1,3-BUTADIENE, 1-Butene + Isobutylene, Benzene, Butane, N-, C5+ (not including benzene), Carbon Monoxide, Cis-2-butene, Ethylene, Isobutane, Nitrogen Oxides (NOx), Propane, Propylene (Propene), Trans-2-butene | 2 hours, 39 minutes | 438413 |
| 2025-03-29 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 77 hours, 0 minutes | 438416 |
| 2025-03-27 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, NOX, Propane, Propylene (Propene) | 90 hours, 0 minutes | 438362 |
| 2025-03-26 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | Ethylene (gaseous) | 0 hours, 1 minutes | 438321 |
| 2025-03-26 | ENTERPRISE PASADENA PLANT | Isobutylene | 2 hours, 18 minutes | 438348 |
| 2025-03-26 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 15 hours, 0 minutes | 438354 |
| 2025-03-25 | PASADENA TERMINAL | 1,2,4-Trimethylbenzene, 1,3-methylethylbenzene, 2,2,4-Trimethylpentane, 2,2,5-trimethylhexane, 2,3,4-trimethylpentane, 2-methylbutene-2, 2-methylpentane, 3,3 dimethylpentene-1, 3-ethylpentene-1, 3-methylhexane, Benzene, Butane, i, Butane, N-, butene-1, c-butene-2, Cyclopentane, Ethylbenzene, Ethylcyclopentane, Heptane,-n, i-pentane, Isobutylene, Methylcyclopentane, N-Hexane, Pentane, N-, Pentenes, Propane, t-butene-2, Toluene, Unspeciated VOCs, Xylenes | 20 hours, 50 minutes | 438290 |
| 2025-03-21 | GULF COAST FRACTIONATORS | Butane, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, Propane, Propylene (Propene) | 10 hours, 0 minutes | 438015 |
| 2025-03-21 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Nitrogen oxide, Propane, Propylene (Propene) | 29 hours, 0 minutes | 438036 |
| 2025-03-20 | ARCANUM BAYTOWN SITE | 1-Butene | 1 hours, 0 minutes | 437964 |
| 2025-03-19 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Butyl alcohol, tert- | 0 hours, 3 minutes | 437926 |
| 2025-03-16 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Ethylene (gaseous), Isobutane, Isobutylene, Nitrogen oxide, Pentane, Propane, Propylene (Propene), Sulfur dioxide | 382 hours, 0 minutes | 437664 |
| 2025-03-16 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Nitrogen oxide | 12 hours, 0 minutes | 437665 |
| 2025-03-12 | GULF COAST FRACTIONATORS | 15 hours, 0 minutes | 437556 | |
| 2025-03-10 | PASADENA PERFORMANCE PRODUCTS | butene c-2, butene-1, Ethylene (gaseous), Hexenes, Trans-butene-2 | 0 hours, 13 minutes | 437483 |
| 2025-03-06 | THERMAL ENERGY TECO | Other | 25 hours, 0 minutes | 441495 |
| 2025-03-05 | EXXONMOBIL CHEMICAL BAYTOWN CHEMICAL PLANT | Benzene, C9 Hydrocarbons, Ethylbenzene, Hexane, Toluene, Xylenes | 0 hours, 10 minutes | 437255 |
| 2025-03-04 | PASADENA REFINERY | Benzene, Butanes, Butenes, All Isomers, Hexanes, Pentanes, Propane | 72 hours, 0 minutes | 437195 |
| 2025-03-03 | MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene, NOX, VOC( unspeciated) | 266 hours, 0 minutes | 436645 |
| 2025-03-03 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Ethylene, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane | 13 hours, 0 minutes | 437127 |
| 2025-03-03 | BAYPORT FACILITY | Opacity | 0 hours, 3 minutes | 437176 |
| 2025-03-01 | EXXONMOBIL CHEMICAL BAYTOWN CHEMICAL PLANT | 1-Butene, Cis-butene-2, Isobutane, Isobutylene, n-butane, Trans-butene-2 | 4 hours, 9 minutes | 437023 |
| 2025-03-01 | HOUSTON PLANT | NOX | 55 hours, 0 minutes | 437076 |
| 2025-02-22 | EXXONMOBIL BAYTOWN REFINERY | Benzene, Toluene | 69 hours, 59 minutes | 436684 |
| 2025-02-22 | HOUSTON REFINING | 1-Butene, 1-Pentene, 2-Butene-cis, 2-Butene-trans, 2-Methyl-2-Butene, Benzene, Butane, N-, Carbon Monoxide, Ethylene, Heptanes, Hydrogen Sulfide, Isobutane, Isobutylene, Isopentane, N-Hexane, Naptha, Nitrogen Oxides (NOx), Pentane, N-, Pentene (CIS), 2-, Propane, Propylene, Sulfur dioxide, trans-2-Pentene | 1 hours, 39 minutes | 436679 |
| 2025-02-21 | GULF COAST FRACTIONATORS | Butane, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides, Pentane, Propane | 7 hours, 0 minutes | 436682 |
| 2025-02-20 | ALBEMARLE PASADENA PLANT | Ethylene (gaseous) | 8 hours, 0 minutes | 436636 |
| 2025-02-20 | AIR LIQUIDE LARGE INDUSTRIES US | Carbon Monoxide, Nitrogen oxide, Particulate Matter, Sulfur dioxide, VOC( unspeciated) | 27 hours, 0 minutes | 436635 |
| 2025-02-19 | BERTRON FACILITY | Benzene, Ethylbenzene, Hexane, n, Kerosene, Toluene, Xylene (mixed isomers) | 6 hours, 5 minutes | 436551 |
| 2025-02-19 | PASADENA REFINERY | 1,2,4 Trimethylbenzene, Benzene, Ethylbenzene, Reformate, Toluene, Xylene (mixed isomers) | 10 hours, 0 minutes | 436618 |
| 2025-02-15 | MONT BELVIEU COMPLEX | Carbon Monoxide, NOX, Butane, N-, C6+, Ethane, Ethylene, Isobutane, Isopentane, Pentane, N-, Propane, Propylene (Propene) | 21 hours, 0 minutes | 436324 |
| 2025-02-14 | CELANESE CLEAR LAKE PLANT | Ethylene (gaseous) | 0 hours, 3 minutes | 436323 |
| 2025-02-11 | PASADENA REFINERY | 1,2,4 Trimethylbenzene, Benzene, Diesel, Ethylbenzene, Naphthalene, Toluene, Xylene (mixed isomers) | 1 hours, 50 minutes | 436153 |
| 2025-02-08 | EXXONMOBIL BAYTOWN REFINERY | Ethylene, Propane, Butane, N-, C5+, Carbon Monoxide, Hydrogen Sulfide, Isobutane, Nitrogen Oxides, Propylene, Sulfur dioxide, 1-Butene + Isobutylene, Cis-2-butene, Hexane, Pentane, Pentene, Trans-2-butene | 19 hours, 15 minutes | 435939 |
| 2025-02-05 | BLUE TIDE BAYTOWN | Sulfur dioxide | 1177 hours, 0 minutes | 436493 |
| 2025-02-05 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 9 hours, 45 minutes | 435815 |
| 2025-02-03 | ROHM AND HAAS TEXAS DEER PARK PLANT | Ammonia | 0 hours, 1 minutes | 435592 |
| 2025-01-29 | MONT BELVIEU COMPLEX | Butane, C6+, Carbon Monoxide, Isobutane, Isopentane, NOX, Pentane, Propane, Propylene | 5 hours, 0 minutes | 435319 |
| 2025-01-27 | MONT BELVIEU COMPLEX | NOX | 10 hours, 0 minutes | 435161 |
| 2025-01-26 | MONT BELVIEU COMPLEX | Carbon Monoxide, Nitrogen Oxides (NOx), Butane, N-, C6+, Isobutane, Isopentane, NOX, Pentane, N-, Propane | 79 hours, 17 minutes | 435131 |
| 2025-01-26 | GULF COAST FRACTIONATORS | Nitrogen Oxides, Opacity, Propane | 2 hours, 0 minutes | 435105 |
| 2025-01-25 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Carbon Monoxide, NOX, Propane, Propylene (Propene), Propylene oxide | 0 hours, 5 minutes | 435097 |
| 2025-01-21 | EQUISTAR CHEMICALS LA PORTE COMPLEX | Carbon Monoxide, NOX, 1,3 Butadiene, Acetylene, Benzene, Butane, N-, Butene, C5+ (not including benzene), Cis-butene-2, Ethylene (gaseous), Isobutene, Propane, Propylene (Propene), Trans-butene-2 | 16 hours, 31 minutes | 434924 |
| 2025-01-21 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Ethylene, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane, Propylene | 20 hours, 35 minutes | 434923 |
| 2025-01-21 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Isobutane, Isobutylene, n-butane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene (Propene), Sulfur dioxide, Butane, VOC (Unspecified) | 1109 hours, 0 minutes | 434945 |
| 2025-01-19 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, Carbon Monoxide, Isobutane, Isobutylene, NOX, Propane, Propylene (Propene) | 166 hours, 0 minutes | 434868 |
| 2025-01-16 | CEDAR BAYOU ELECTRIC GENERATING STATION | CO, NOX, Opacity | 48 hours, 0 minutes | 433690 |
| 2025-01-15 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Nitrogen Oxides (NOx), Propane, Propylene (Propene) | 48 hours, 0 minutes | 434742 |
| 2025-01-12 | EXXONMOBIL BAYTOWN REFINERY | Benzene, Ethylbenzene, Hexane, Toluene, VOC (Unspecified), Xylene | 15 hours, 54 minutes | 434538 |
| 2025-01-10 | INTERCONTINENTAL TERMINALS DEER PARK TERMINAL | 2-Methyl-2-Butene, Benzene, Butane, Carbon Monoxide, Cyclopentadiene, Cyclopentane, Cyclopentene, decane-n, Dicyclopentadiene, Isoprene, n-Heptane, n-hexane - 110543, n-pentane, Nitrogen Oxides (NOx), Nonane, Octane, n-, Particulate Matter, Pentadiene (CIS), 1, 3-, Styrene, Toluene, trans-1,3-pentadiene, Undecane, Xylene | 444 hours, 25 minutes | 434494 |
| 2025-01-08 | MONT BELVIEU COMPLEX | Butane, N-, C6+, Carbon Monoxide, Isobutane, Isopentane, NOX, Pentane, N-, Propane | 8 hours, 10 minutes | 434360 |
| 2025-01-08 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides, Propane, Propylene (Propene), VOC | 5 hours, 45 minutes | 434386 |
| 2025-01-06 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | Ethylene (gaseous), Propane | 0 hours, 12 minutes | 434306 |
| 2025-01-05 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | Acetylene, Benzene, Butadiene, 1-3, Butane, Butene, Carbon Monoxide, Ethylene (gaseous), Hexane, Hexene, Nitrogen Oxides (NOx), Pentane, Pentene, Propane, Propylene, Toluene, VOC (unspeciated), Xylene | 18 hours, 21 minutes | 434145 |
| 2024-12-26 | BAYPORT FACILITY | Benzene, CO, NOX, VOCs | 55 hours, 30 minutes | 433798 |
| 2024-12-24 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, hexanes +, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene, Volatile Organic Compounds | 0 hours, 10 minutes | 433796 |
| 2024-12-23 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 207 hours, 0 minutes | 433789 |
| 2024-12-22 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Nitrogen oxide, Propane, Propylene (Propene) | 73 hours, 0 minutes | 433748 |
| 2024-12-18 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen Oxides, Propane, Propylene (Propene), VOC | 3 hours, 0 minutes | 433660 |
| 2024-12-18 | CELANESE CLEAR LAKE PLANT | Acetic acid, Ethylene (gaseous) | 0 hours, 8 minutes | 433740 |
| 2024-12-14 | NISSEKI CHEMICAL TEXAS | Dicyclopentadiene | 45 hours, 0 minutes | 433502 |
| 2024-12-12 | PASADENA PERFORMANCE PRODUCTS | Butane, N-, butene c-2, butene-1, Carbon Monoxide, Ethylene (gaseous), Isobutane, Oxides of Nitrogen (NOx), Propane, Trans-butene-2 | 44 hours, 36 minutes | 433447 |
| 2024-12-09 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 301 hours, 0 minutes | 433254 |
| 2024-12-09 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 1,3-BUTADIENE, Acetylene, Benzene, Butane, Butene, Carbon Monoxide, Cyclopentadiene, Ethylene (gaseous), Hexene, NOX, Pentadiene, Pentenes, Propane, Propylene (Propene), Toluene, Xylene, Nitrogen Oxides (NOx) | 4 hours, 30 minutes | 433277 |
| 2024-12-08 | PASADENA REFINERY | 24 hours, 0 minutes | 433246 | |
| 2024-12-07 | INEOS POLYETHYLENE NORTH AMERICA LA PORTE PLANT | Ethylene (gaseous), Hexene, Isobutane | 1 hours, 40 minutes | 433202 |
| 2024-12-03 | MORGANS POINT COMPLEX | Carbon Monoxide, Isobutane, Isobutylene, Nitrogen Oxides (NOx) | 59 hours, 0 minutes | 433041 |
| 2024-11-28 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Carbon Monoxide, Methanol, Nitrogen oxide, Propane, Propylene, Propylene oxide, t-Butyl Alcohol | 0 hours, 59 minutes | 432877 |
| 2024-11-28 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Isobutane, Isobutylene, NOX, Propane, Propylene (Propene) | 117 hours, 0 minutes | 432878 |
| 2024-11-27 | BAYPORT EO PLANT | Acetaldehyde, Ethylene glycol, Diethylene glycol, Ethylene oxide, Ethylene (gaseous) | 32 hours, 4 minutes | 433006 |
| 2024-11-26 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 276 hours, 0 minutes | 432836 |
| 2024-11-26 | CHEVRON USA GALENA PARK MARKETING TERMINAL | 1,2,4 Trimethylbenzene, 2,2,4-Trimethylpentane, Benzene, Cumene, Ethylbenzene, Hexane, Naphthalene, Toluene, VOC (unspeciated), Xylene | 356 hours, 0 minutes | 432852 |
| 2024-11-26 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Acetone, Butane, N-, Butyl alcohol, tert-, Carbon Monoxide, Isobutane, Isobutylene, Methyl ethyl ketone (MEK), Nitrogen Oxides (NOx), Propane, Propylene, Propylene oxide, Tert Butylhydroperoxide | 1 hours, 24 minutes | 432871 |
| 2024-11-25 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | Nitrogen oxide, 1,3-BUTADIENE, Acetylene, Benzene, Butane, Butene, C5, C6 (not including benzene), Carbon Monoxide, Ethylene (gaseous), NOX, Propane, Propylene (Propene), Toluene, Xylene, Nitrogen Oxides (NOx) | 109 hours, 15 minutes | 432718 |
| 2024-11-24 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 24 hours, 0 minutes | 432227 | |
| 2024-11-18 | SHELL CHEMICAL | 1,3 Butadiene | 0 hours, 14 minutes | 432425 |
| 2024-11-16 | PCI NITROGEN PASADENA | Sulfuric acid | 0 hours, 29 minutes | 432346 |
| 2024-11-14 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 0 hours, 1 minutes | 432226 | |
| 2024-11-14 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Isobutane, Nitrogen oxide, Propane, Propylene (Propene), C5+, NOX, Isobutylene | 179 hours, 0 minutes | 432299 |
| 2024-11-12 | EXXONMOBIL BAYTOWN REFINERY | PM30 | 8 hours, 44 minutes | 432194 |
| 2024-11-09 | CEDAR BAYOU ELECTRIC GENERATING STATION | CO, NOX, Opacity | 5 hours, 0 minutes | 431384 |
| 2024-11-05 | MONT BELVIEU COMPLEX | Butane, C6+, Carbon Monoxide, Ethylene, Isobutane, Isopentane, NOX, Pentane, Propane, Propylene | 5 hours, 0 minutes | 431929 |
| 2024-11-05 | ENTERPRISE MONT BELVIEU COMPLEX | Butane, C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Isobutane, Isobutylene, NOX, Propane, Propylene (Propene), Sulfur dioxide | 101 hours, 0 minutes | 431974 |
| 2024-11-01 | ENTERPRISE PASADENA PLANT | Ammonia, Carbon Monoxide, Nitrogen oxide, Particulate Matter, Sulfur dioxide, VOC, Isobutane, Isobutylene | 21 hours, 30 minutes | 431862 |
| 2024-11-01 | LYONDELL CHEMICAL BAYPORT CHOATE PLANT | Acetone, Butane, N-, Butyl alcohol, tert-, Carbon Monoxide, Formic acid, Isobutane, Isobutylene, Isobutylene Oxide, Methanol, Methyl ethyl ketone (MEK), Nitrogen oxide, Propane, Propylene oxide | 1 hours, 15 minutes | 431860 |
| 2024-10-30 | ENTERPRISE MONT BELVIEU COMPLEX | C5+ (not including benzene), Carbon Monoxide, Ethylene (gaseous), Nitrogen Oxides (NOx), Propane, Propylene (Propene), Sulfur dioxide | 181 hours, 0 minutes | 431805 |
| 2024-10-27 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | 1,3 Butadiene, Acetylene, Benzene, Butane, Butene, Carbon Monoxide, Ethylene, Hexene, Nitrogen Oxides (NOx), Pentane, Pentenes, Propane, Propylene, Toluene, VOC (unspeciated) | 25 hours, 0 minutes | 431583 |
| 2024-10-27 | INVISTA HOUSTON | 1,3-BUTADIENE, Benzene, Butanes, Butenes, All Isomers, Carbon Monoxide, Ethylene (gaseous), Hydrogen Sulfide, NOx (Startup/Shutdown), Propane, Propylene | 1 hours, 25 minutes | 431581 |
| 2024-10-27 | PASADENA PERFORMANCE PRODUCTS | Butane, N-, butene c-2, butene-1, Carbon Monoxide, Ethylene (gaseous), Isobutane, Oxides of Nitrogen (NOx), Propane, Trans-butene-2 | 305 hours, 0 minutes | 431642 |
| 2024-10-24 | MONT BELVIEU NGL FRACTIONATION AND STORAGE COMPLEX | Butane, N-, Carbon Monoxide, Isobutane, NOx (Startup/Shutdown), Pentane, N-, Propane, N-, Sulfur dioxide, VOC (unspeciated) | 599 hours, 0 minutes | 431506 |
| 2024-10-23 | CHEVRON USA GALENA PARK MARKETING TERMINAL | Unspeciated VOCs | 23 hours, 0 minutes | 431480 |
| 2024-10-23 | ENTERPRISE EAST | Propane, Propylene | 1 hours, 0 minutes | 431518 |
| 2024-10-17 | MB FRAC I II AND III | Butane, N-, Carbon Monoxide, Hexane Plus, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane, Propylene | 6 hours, 0 minutes | 431223 |
| 2024-10-13 | INVISTA HOUSTON | 1,3-BUTADIENE, Benzene, Butane, Butenes, All Isomers, Carbon Monoxide, Ethylene (gaseous), Hydrogen Sulfide, Oxides of Nitrogen (NOx), Propane, Propylene, Sulfur dioxide | 6 hours, 10 minutes | 431017 |
| 2024-10-10 | DEER PARK OIL REFINERY | Hydrogen Sulfide, Carbon Monoxide, NOX, Sulfur dioxide, VOCs | 7 hours, 38 minutes | 430966 |
| 2024-10-08 | PASADENA PERFORMANCE PRODUCTS | Butane, N-, butene c-2, butene-1, Carbon Monoxide, Ethylene (gaseous), Isobutane, Oxides of Nitrogen (NOx), Propane, Trans-butene-2 | 81 hours, 15 minutes | 430839 |
| 2024-10-06 | DEER PARK OIL REFINERY | Benzene | 4 hours, 15 minutes | 430738 |
| 2024-10-01 | CHEVRON PHILLIPS CHEMICAL CEDAR BAYOU PLANT | Butanes, Butene, Carbon Monoxide, Decenes, Ethylene, Hexene, NOX, Octene, Propane, Propylene | 13 hours, 55 minutes | 430577 |
| 2024-09-30 | CEDAR BAYOU HYDROGEN FACILITY | CO, Ethylene, NOX | 3612 hours, 0 minutes | 430265 |
| 2024-09-27 | BAYPORT EO PLANT | Diethylene glycol, Ethylene glycol, Triethylene Glycol | 9 hours, 10 minutes | 430364 |
| 2024-09-26 | CHEVRON USA GALENA PARK MARKETING TERMINAL | Gasoline | 0 hours, 30 minutes | 430262 |
| 2024-09-25 | MB NORTH TERMINAL | Carbon Monoxide, Ethylene (gaseous), NOX, VOCs | 1 hours, 0 minutes | 430250 |
| 2024-09-25 | TOTALENERGIES PETROCHEMICALS & REFINING USA LA PORTE PLANT | Carbon Monoxide, Ethylene, Nitrogen oxide, Propane, Propylene (Propene), VOC | 6 hours, 49 minutes | 430272 |
| 2024-09-24 | CHEVRON USA GALENA PARK MARKETING TERMINAL | Benzene, (2-methylpropyl)-, Gasoline | 0 hours, 45 minutes | 430208 |
| 2024-09-24 | ENTERPRISE MONT BELVIEU COMPLEX | Carbon Monoxide, Ethylene (gaseous), Isobutane, Isobutylene, n-butane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene (Propene), Sulfur dioxide | 702 hours, 0 minutes | 430213 |
| 2024-09-23 | LYONDELL CHEMICAL CHANNELVIEW | Butane, N-, Carbon Monoxide, Isobutane, NOX, Propane, Propylene, Propylene oxide | 1 hours, 45 minutes | 430116 |
| 2024-09-22 | PCI NITROGEN PASADENA | Sulfuric acid | 0 hours, 5 minutes | 430053 |
| 2024-09-22 | MB FRAC I II AND III | Butane, i, Butane, N-, Carbon Monoxide, Hexane Plus, Isopentane, Nitrogen Oxides (NOx), Pentane, N-, Propane, Propylene | 39 hours, 0 minutes | 430054 |
| 2024-09-22 | MB FRAC VII | Butane, C6+, Carbon Monoxide, Isobutane, Isopentane, Nitrogen Oxides (NOx), Pentane, Propane, Propylene, VOC GAS MIXTURE | 3 hours, 0 minutes | 430055 |
| 2024-09-17 | BAYPORT CHEMICAL PLANT | alpha,alpha-dihyroxy p-DIPB, p-DIPB Mono Hydro Peroxide, Para Diisoproplbenzene | 0 hours, 4 minutes | 429903 |
| 2024-09-16 | ENERGY TRANSFER GC NGL PIPELINES HARRIS COUNTY | Carbon Monoxide, Nitrous Oxides, VOC( unspeciated) | 80 hours, 40 minutes | 429855 |
| 2024-09-16 | BAYPORT FACILITY | Benzene, CO, NOX, VOCs, NH3 | 38 hours, 0 minutes | 429901 |
What was that?
A flare, boom, siren or unusual light can mean very different things in Baytown. The useful response is to identify the signal, check official alerts and act on instructions. The short version: a flare or a boom alone is not an order to do anything. A Baytown siren outside the Wednesday 9 a.m. test means go inside now.
A flare
A boom that rattles the window. A flame on the horizon like a second sunset. A siren at noon on a Wednesday. Every town has its noises, and in this one most of them come from the plants, which run all night and are honest about it. Here is how to tell them apart, in the order of how much attention each one deserves.
A tall flame at the top of a stack, sometimes with a plume of dark smoke, sometimes loud enough to hum in the walls. It looks dramatic and it is the opposite. A flare is a safety valve: when a unit starts up, shuts down, or upsets, the gas it cannot use is sent to the top of the stack and burned in the open air rather than kept where it does not belong.
Flares happen somewhere in the corridor most weeks. On a low cloudy night the glow paints the whole underside of the sky orange, and people who have lived here a year stop turning their heads. Larger releases have to be reported to the state, the company posts a notice, and CAER Online can say what happened and whether the public needs to act.
Before and after a hurricane, expect more flaring as units come down and go back up. A flare by itself is not an instruction to shelter. Baytown Alert, CAER Online and the city's sirens are the signals to follow when officials need you to act.
A boom
Usually a pressure-relief valve doing its job, a unit coming up, or a coupling dropped in the rail yard, which carries across the flat ground for miles. Once in a while it is lightning finding a tank. Very rarely it is something real. Check CAER Online, Baytown Alert and the county alert feed. If they carry no public instruction, keep watching rather than inventing one.
The old local line is that if nothing has been posted within the hour and no siren has sounded, it was a noise, and the town is full of them. That is usually right. It is not a guarantee, so let the alerts decide, not the quiet.
A siren
There are two kinds of siren day, which is why the schedule matters. The City of Baytown tests the outdoor warning sirens every Wednesday at 9 a.m. for one minute; no action is required during that scheduled test. At other times, an activated Baytown siren means shelter in place immediately. The warning siren is a loud, whooping sound, and it is used for chemical emergencies, not storms. Do not wait for a text to make the siren official.
For details and the all-clear, use Baytown Alert, CAER Online and local authorities. On the radio, the City names AM 1610, the local emergency and traffic station. The Greater Baytown Chambers County Local Emergency Planning Committee (LEPC) lists AM 1610 and KTRH 740 AM News Radio, plus local TV, for the public message that follows a siren.
Go inside. Close and lock the doors and windows. Turn off the air conditioning, fans and fireplace dampers so they stop pulling outside air through the house.
Put a towel along the bottom of the door if the message says to. Wait for the all-clear from the same source that told you to go in. Do not drive toward it, and do not go to pick up the children: the schools shelter too, they have drilled it, and a car on the road is the one place the order cannot protect.
How much to worry: do what the message says, and then it is over.
Lights in the sky
Helicopters low over the plants are inspections and crew changes. A column of dark smoke with no flame under it is a fire, and the county will be saying so within minutes. An orange sky at three in the morning is a start-up flare on the clouds. A hard white light that does not move for a week is a light tower on a turnaround, where a crew is taking a unit apart around the clock and needs to see what it is doing.
If you smell gas
That is a different call. For a suspected natural-gas leak, CenterPoint's safety guidance is to leave immediately, go to a safe location, call 911, and then call the gas-leak hotline. The sign-up systems below are how you learn what the plants are reporting.
CAER Online and the CAER Line
CAER Online is the industry's public alert system for industrial incidents, planned events and operational disruptions. It is a website and a mobile app, it changes as an event goes on, and it is the fastest honest source in the county. Its messages can say what happened, where it happened and whether the public needs to act. The CAER Line is a separate recorded message with information as details become available; its number is on the LEPC's site, gbcclepc.com. CAER began in 1986 as a voluntary petrochemical-industry program, and the Local Emergency Planning Committee grew out of it. Keep CAER Online beside Baytown Alert in the same mental folder: "plants."
Sign up
Baytown Alert for the city, ReadyHarris for Harris County, ChambersWARNS for Chambers County. All three; the plants straddle the county line and each system covers a different fence. Add the children's school to the list as well. They send their own.
Who answers where
Baytown Fire Department's administrative offices are at 3200 N. Main Street, Suite 100, and the Baytown Police Department is at 3200 N. Main Street; those two are the city's non-emergency doors, and 911 is the emergency one. Baytown Fire Department Station 2 is at 2320 Market Street. The American Red Cross office at 5309 Decker Drive is the local office for disaster help and shelter questions. Beyond the city line, in Mont Belvieu the Mont Belvieu Fire Department is at 11607 Eagle Drive, in Crosby the Crosby Fire Department is at 123 S. Diamondhead Boulevard, and in Highlands the Highlands Volunteer Fire Department is at 2301 E. Wallisville Road.
When something happens
This page is built to carry what is known from CAER Online, the county and the company's notice, with the event time when one is published. Use that event time, not a page date, to judge freshness. If the newest official incident notice is from last month, the month was quiet, which in this town is most of them.
For the fuller picture: who watches the plant explains the four agencies behind these alerts, and what a refinery does explains what the flare itself actually is.
Before you go
- Sign up for Baytown Alert, ReadyHarris and ChambersWARNS before you need them, and add your children's school alerts.
- Keep CAER Online easy to reach under "plants," beside Baytown Alert and the county alerts.
- Bookmark the local emergency planning committee's site, gbcclepc.com, which lists its contacts.
- Expect the one-minute Wednesday 9 a.m. siren test; outside that scheduled test, a Baytown siren means shelter in place immediately.
- If told to shelter, go inside, close doors and windows, turn off the air conditioning and wait for the all-clear from the source that told you.
- Call 911 for smoke, fire or a gas smell, and leave the building first for gas.
Sources
- City of Baytown, Outdoor Warning Sirens, Baytown Alert and CAER Online (https://baytown.org/1184)
- City of Baytown, Chemical Emergencies and shelter-in-place steps (https://baytown.org/1181/Chemical-Emergencies)
- Greater Baytown Chambers County Local Emergency Planning Committee, About (https://www.gbcclepc.com/about2)
- CenterPoint Energy, Reporting a gas leak (https://www.centerpointenergy.com/en-us/safety/reporting)
En español
¿Qué fue eso?
Una antorcha, un estruendo, una sirena o una luz rara pueden significar cosas muy distintas en Baytown. Lo útil es identificar la señal, revisar las alertas oficiales y seguir las instrucciones. En resumen: una antorcha o un estruendo por sí solos no son una orden. Una sirena de Baytown fuera de la prueba del miércoles a las 9 de la mañana significa que debe entrar a un lugar cerrado de inmediato.
Una antorcha
Una llama alta en la punta de una chimenea, a veces con humo oscuro y a veces tan ruidosa que zumba en las paredes. Parece dramática y es todo lo contrario. Una antorcha es una válvula de seguridad: cuando una unidad arranca, se detiene o tiene un problema, el gas que no puede usar se manda a la punta y se quema al aire libre, en vez de dejarlo donde no debe estar. En el corredor industrial hay antorchas casi todas las semanas. Los escapes grandes se reportan al estado, la empresa publica un aviso y CAER Online puede decir qué pasó y si el público debe actuar. Antes y después de un huracán hay más antorchas, porque las unidades se apagan y se vuelven a encender. Una antorcha sola no es una instrucción de refugiarse.
Un estruendo
Suele ser una válvula de alivio de presión, una unidad que arranca o un acoplamiento que se cayó en el patio de trenes; el ruido viaja millas sobre el terreno plano. A veces es un rayo que cae en un tanque. Muy rara vez es algo grave. Revise CAER Online, Baytown Alert y las alertas del condado. Si no hay una instrucción pública, siga atento en vez de inventar una. El dicho local es que si nada se ha publicado en una hora y no sonó ninguna sirena, fue un ruido. Suele ser cierto, pero no es una garantía: deje que decidan las alertas, no el silencio.
Una sirena
La ciudad de Baytown prueba las sirenas de advertencia exteriores todos los miércoles a las 9 de la mañana, durante un minuto. En esa prueba no tiene que hacer nada. En cualquier otro momento, una sirena activada significa que debe refugiarse de inmediato. La sirena de advertencia es un silbido fuerte y se usa para emergencias químicas, no para tormentas. No espere un mensaje de texto para decidir si la sirena es real.
Para los detalles y el aviso de fin de la emergencia, use Baytown Alert, CAER Online y las autoridades locales. En la radio, la ciudad menciona AM 1610, la estación local de emergencias y tráfico. El comité local de planificación de emergencias (LEPC) menciona AM 1610 y KTRH 740 AM, además de la televisión local.
Entre a un lugar cerrado. Cierre con seguro puertas y ventanas. Apague el aire acondicionado, los ventiladores y los reguladores de la chimenea para que no jalen aire de afuera. Si el mensaje lo indica, ponga una toalla en la parte de abajo de la puerta. Espere la señal de que terminó la emergencia de la misma fuente que le dijo que entrara. No maneje hacia allá y no vaya por los niños: las escuelas también se refugian, lo han practicado, y un carro en la calle es el único lugar que la orden no puede proteger.
Luces en el cielo
Los helicópteros bajos sobre las plantas son inspecciones y cambios de turno. Una columna de humo oscuro sin llama debajo es un incendio, y el condado lo dirá en minutos. Un cielo naranja a las tres de la mañana es una antorcha de arranque reflejada en las nubes. Una luz blanca fija durante una semana es una torre de luz en una parada de mantenimiento, donde una cuadrilla desarma una unidad día y noche.
Si huele a gas
Es otra llamada. Ante una posible fuga de gas natural, CenterPoint indica salir de inmediato, ir a un lugar seguro, llamar al 911 y después llamar a la línea de fugas de gas.
CAER Online y la línea CAER
CAER Online es el sistema público de alertas de la industria para incidentes industriales, eventos planeados e interrupciones de operación. Es un sitio web y una aplicación, cambia mientras avanza un evento y es la fuente más rápida y honesta del condado. Sus mensajes dicen qué pasó, dónde y si el público debe actuar. La línea CAER es una grabación aparte con información conforme se tiene; su número está en gbcclepc.com. CAER nació en 1986 como un programa voluntario de la industria petroquímica, y de ahí surgió el comité local de planificación de emergencias.
Regístrese
Baytown Alert para la ciudad, ReadyHarris para el condado de Harris y ChambersWARNS para el condado de Chambers. Los tres: las plantas cruzan la línea del condado y cada sistema cubre una parte distinta. Agregue también las alertas de la escuela de sus hijos.
Quién responde dónde
Las oficinas administrativas del Departamento de Bomberos de Baytown están en 3200 N. Main Street, Suite 100, y el Departamento de Policía en 3200 N. Main Street; son las puertas para asuntos que no son emergencia. Para emergencias, llame al 911. La Estación 2 de Bomberos está en 2320 Market Street. La oficina de la Cruz Roja Americana, en 5309 Decker Drive, atiende preguntas sobre ayuda por desastre y refugios. Fuera de la ciudad: en Mont Belvieu, el Departamento de Bomberos está en 11607 Eagle Drive; en Crosby, en 123 S. Diamondhead Boulevard; y en Highlands, el Cuerpo de Bomberos Voluntarios está en 2301 E. Wallisville Road.
Cuando pasa algo
Esta página reúne lo que se sabe por CAER Online, el condado y el aviso de la empresa, con la hora del evento cuando se publica. Use esa hora, no la fecha de la página, para juzgar qué tan reciente es. Si el último aviso oficial es del mes pasado, el mes fue tranquilo, que en este pueblo es lo normal.
Antes de salir
- Regístrese en Baytown Alert, ReadyHarris y ChambersWARNS antes de necesitarlos, y agregue las alertas de la escuela de sus hijos.
- Tenga CAER Online a la mano, junto a Baytown Alert y las alertas del condado.
- Guarde el sitio del comité local de planificación de emergencias, gbcclepc.com.
- Espere la prueba de un minuto los miércoles a las 9 de la mañana; fuera de ella, una sirena de Baytown significa refugiarse de inmediato.
- Si le ordenan refugiarse: entre, cierre puertas y ventanas, apague el aire acondicionado y espere el aviso de fin de la misma fuente.
- Llame al 911 por humo, fuego u olor a gas, y salga primero del edificio si es gas.
Source: https://www.laportetx.gov/FAQ.aspx?QID=110 · https://www.baytown.org/1184/Warnings-Alerts · https://www.ehcma.org/page/caer-online · https://www.baytown.org/DocumentCenter/View/8466/Baytown-Disaster-Preparedness-Guide. Official pages change. Where this disagrees with the city, the county or the district, they are right and we are out of date.