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Marathon Petroleum

Rank in Toxic 100 Water: 40
Surface Water releases 2017 (lbs): 1,036,873
POTW (sewerage plant) transfers 2017 (lbs): 484,135
Pounds released post-treatment 2017 (lbs): 1,083,245
Total Surface Water and POTW Toxic Hazard 2017: 224,510,501
Percentage of national total 2017 surface water and POTW hazard: 0.1%

You can also view this company's penalties in Violation Tracker.
You can also look at this company's state, local, and Federal subsidies in Subsidy Tracker.
This company is rank 33 on the Toxic 100 Air list.
This company is rank 16 on the Greenhouse 100 list.

Chemicals at facilities displayed below: (
display facilities) (display chemicals)
(Click on column headers to re-sort table: current sort is by pounds of surface water releases.)
(Links on facility names lead to full TRI reports. Links on cities lead to Mapquest maps. Links on chemical names lead to Scorecard chemical health effects.)
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MARATHON PETROLEUM CO LP GARYVILLE LA Nitrate compounds 525,383 0 525,383 330,991 0.15%
BLANCHARD REFINING CO LLC TEXAS CITY TX Nitrate compounds 240,000 0 240,000 151,200 0.07%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Nitrate compounds 67,119 0 67,119 42,285 0.02%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Nitrate compounds 58,000 0 58,000 36,540 0.02%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Nitrate compounds 55,838 0 55,838 35,178 0.02%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Methanol 23,937 0 23,937 23,937 0.01%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Nitrate compounds 23,379 0 23,379 14,729 0.01%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Nitrate compounds 18,000 0 18,000 11,340 0.01%
MARATHON PETROLEUM CO LP GARYVILLE LA Ammonia 4,447 0 4,447 0 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Ammonia 3,200 0 3,200 0 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Nitrate compounds 2,366 0 2,366 1,491 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK Ammonia 1,553 0 1,553 0 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Ammonia 1,400 0 1,400 0 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Zinc compounds 1,260 0 1,260 4,158 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX Ammonia 750 0 750 0 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY 1,2,4-Trimethylbenzene 700 0 700 70,000 0.03%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Ammonia 608 0 608 0 0.00%
TESORO MANDAN REFINERY MANDAN ND Ammonia 580 0 580 0 0.00%
MPLX TERMINALS LLC - KENOVA WV TERMINAL KENOVA WV n-Hexane 560 0 560 9,520 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Ammonia 549 0 549 0 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Xylene (mixed isomers) 469 0 469 2,345 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX Toluene 410 0 410 5,330 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX Xylene (mixed isomers) 390 0 390 1,950 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Zinc compounds 361 11,318 4,192 13,834 0.01%
BLANCHARD REFINING CO LLC TEXAS CITY TX Nickel compounds 340 0 340 30,940 0.01%
BLANCHARD REFINING CO LLC TEXAS CITY TX Zinc compounds 340 0 340 1,122 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Toluene 307 0 307 3,991 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Naphthalene 291 0 291 14,550 0.01%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Benzene 202 0 202 11,110,000 4.95%
BLANCHARD REFINING CO LLC TEXAS CITY TX Chromium compounds 200 0 200 100,000,000 44.54%
MARATHON PETROLEUM CO LP GARYVILLE LA Zinc compounds 185 0 185 610 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Phenol 184 0 184 607 0.00%
MARATHON PETROLEUM CO LP GARYVILLE LA Phenol 180 0 180 594 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Zinc compounds 171 19 177 585 0.00%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Ammonia 150 0 150 0 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Hydrogen sulfide 112 0 112 201,600 0.09%
MPLX TERMINALS LLC - KENOVA WV TERMINAL KENOVA WV Naphthalene 110 0 110 5,500 0.00%
MPLX TERMINALS LLC - KENOVA WV TERMINAL KENOVA WV Xylene (mixed isomers) 110 0 110 550 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Ammonia 109 0 109 0 0.00%
MARATHON PETROLEUM CO LP GARYVILLE LA Xylene (mixed isomers) 104 0 104 520 0.00%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Zinc compounds 100 0 100 330 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX Cumene 100 0 100 1,000 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX Cyclohexane 93 0 93 54 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX Ethylbenzene 93 0 93 102,300 0.05%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Polycyclic aromatic compounds 90 0 90 16,200,000 7.22%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Hydrogen sulfide 85 0 85 153,000 0.07%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Nickel compounds 81 0 81 7,371 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Lead compounds 81 0 81 1,454,400 0.65%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Nickel 80 8 85 7,746 0.00%
MPLX TERMINALS LLC - KENOVA WV TERMINAL KENOVA WV Benzene 79 0 79 4,345,000 1.94%
BLANCHARD REFINING CO LLC TEXAS CITY TX Benzene 75 0 75 4,125,000 1.84%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Phenol 71 0 71 234 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Cumene 70 0 70 700 0.00%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Zinc compounds 65 0 65 214 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Nickel compounds 64 0 64 5,824 0.00%
MARATHON PETROLEUM CO LP GARYVILLE LA Toluene 64 0 64 832 0.00%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Lead compounds 58 0 58 1,044,000 0.47%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Hydrogen sulfide 50 0 50 90,000 0.04%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Nickel compounds 47 0 47 4,277 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Ethylbenzene 40 0 40 44,000 0.02%
MARATHON PETROLEUM CO LP GARYVILLE LA Cobalt compounds 39 0 39 0 0.00%
MARATHON PETROLEUM CO LP GARYVILLE LA Lead compounds 39 0 39 694,800 0.31%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Phenol 36 0 36 119 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Xylene (mixed isomers) 36 0 36 180 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Ammonia 35 27,000 10,862 0 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Phenol 34 0 34 112 0.00%
MPLX TERMINALS LLC - KENOVA WV TERMINAL KENOVA WV Ethylbenzene 34 0 34 37,400 0.02%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Chromium compounds 29 0 29 14,500,000 6.46%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Benzene 29 0 29 1,595,000 0.71%
MARATHON PETROLEUM CO LP GARYVILLE LA Naphthalene 27 0 27 1,350 0.00%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Polycyclic aromatic compounds 25 0 25 4,554,000 2.03%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Hydrogen cyanide 24 0 24 40,800 0.02%
TESORO MANDAN REFINERY MANDAN ND Hydrogen cyanide 24 0 24 40,800 0.02%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Lead compounds 22 0 22 392,400 0.17%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Nickel compounds 21 0 21 1,911 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL n-Hexane 18 0 18 306 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Cyclohexane 18 0 18 10 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL 1,2,4-Trimethylbenzene 18 0 18 1,800 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL 1,3-Butadiene 18 0 18 1,980,000 0.88%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Ethylbenzene 18 0 18 19,800 0.01%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Toluene 18 0 18 234 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Benzene 18 0 18 990,000 0.44%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Ammonia 17 0 17 0 0.00%
TESORO MANDAN REFINERY MANDAN ND Hydrogen sulfide 17 0 17 30,600 0.01%
TESORO MANDAN REFINERY MANDAN ND Phenol 15 0 15 49 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Benzo(g,h,i)perylene 15 0 15 300,000 0.13%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Naphthalene 15 0 15 750 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Polycyclic aromatic compounds 15 0 15 2,700,000 1.20%
MARATHON PETROLEUM CO LP GARYVILLE LA n-Hexane 15 0 15 255 0.00%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Naphthalene 14 0 14 700 0.00%
MARATHON PETROLEUM CO LP GARYVILLE LA 1,2,4-Trimethylbenzene 13 0 13 1,300 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Nickel compounds 11 69 54 4,876 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Cobalt compounds 11 0 11 0 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Lead compounds 11 3 12 217,261 0.10%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Polycyclic aromatic compounds 10 0 10 1,854,000 0.83%
MARATHON PETROLEUM CO LP GARYVILLE LA Benzene 10 0 10 550,000 0.24%
MARATHON PETROLEUM CO LP GARYVILLE LA Copper compounds 10 0 10 15,000 0.01%
MARATHON PETROLEUM CO LP GARYVILLE LA Nickel compounds 10 0 10 910 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Molybdenum trioxide 10 0 10 3,800 0.00%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Vanadium compounds 9 0 9 1,260 0.00%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Lead compounds 9 0 9 162,000 0.07%
MARATHON PETROLEUM CO LP GARYVILLE LA Cyclohexane 9 0 9 5 0.00%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Ethylbenzene 8 0 8 8,800 0.00%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Lead compounds 8 0 8 136,800 0.06%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Xylene (mixed isomers) 7 0 7 35 0.00%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Toluene 7 0 7 91 0.00%
TESORO MANDAN REFINERY MANDAN ND Lead compounds 7 0 7 117,000 0.05%
MARATHON PETROLEUM CO LP GARYVILLE LA Ethylbenzene 6 0 6 6,600 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX 1,2,4-Trimethylbenzene 6 0 6 600 0.00%
MPLX TERMINALS LLC - CHARLESTON WV TERMINAL CHARLESTON WV Toluene 6 0 6 78 0.00%
MPLX TERMINALS LLC - BRECKSVILLE OH TERMINAL BRECKSVILLE OH Lead compounds 5 0 5 95,400 0.04%
MPLX TERMINALS LLC - CHARLESTON WV TERMINAL CHARLESTON WV Xylene (mixed isomers) 5 0 5 25 0.00%
MARATHON PIPELINE CO LLC HEATH TERMINAL HEATH OH Naphthalene 5 0 5 250 0.00%
MARATHON PIPELINE CO LLC HEATH TERMINAL HEATH OH Xylene (mixed isomers) 5 0 5 25 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Toluene 5 0 5 65 0.00%
TESORO VINVALE TERMINAL SOUTH GATE CA Toluene 5 0 5 65 0.00%
MARATHON PETROLEUM CO LP GARYVILLE LA Tetrachloroethylene 5 0 5 10,500 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Lead compounds 4 56 25 445,036 0.20%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Ethylene 4 0 4 2 0.00%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Propylene 4 0 4 5 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Vanadium compounds 4 0 4 560 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Xylene (mixed isomers) 4 0 4 20 0.00%
TESORO VINVALE TERMINAL SOUTH GATE CA Xylene (mixed isomers) 4 0 4 20 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Xylene (mixed isomers) 3 13,100 518 2,589 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Styrene 3 0 3 15 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Xylene (mixed isomers) 3 0 3 15 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Phenol 3 24,300 1,911 6,305 0.00%
MARATHON PETROLEUM CO - NORTH BEND OH TERMINAL NORTH BEND OH Hydrogen sulfide 3 0 3 5,400 0.00%
BLANCHARD TERMINAL CO - CHARLOTTE EAST NC TERMINAL CHARLOTTE NC Naphthalene 3 0 3 150 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK Lead compounds 3 0 3 48,600 0.02%
TESORO ALASKA - KENAI REFINERY KENAI AK Polycyclic aromatic compounds 3 0 3 486,000 0.22%
TESORO ALASKA - KENAI REFINERY KENAI AK Hydrogen sulfide 2 0 2 4,320 0.00%
TESORO MANDAN REFINERY MANDAN ND Phenanthrene 2 0 2 0 0.00%
TESORO MANDAN REFINERY MANDAN ND Naphthalene 2 0 2 100 0.00%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Benzene 2 0 2 110,000 0.05%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Carbon disulfide 2 0 2 20 0.00%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN 1,3-Butadiene 2 0 2 220,000 0.10%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Toluene 2 0 2 26 0.00%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH 1,2,4-Trimethylbenzene 2 0 2 200 0.00%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY Xylene (mixed isomers) 2 0 2 10 0.00%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY Toluene 2 0 2 26 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Ethylbenzene 2 0 2 2,200 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Benzene 2 0 2 110,000 0.05%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Toluene 2 11,100 561 7,299 0.00%
TESORO MANDAN REFINERY MANDAN ND Xylene (mixed isomers) 2 0 2 10 0.00%
TESORO MANDAN REFINERY MANDAN ND Carbon disulfide 2 0 2 20 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Polycyclic aromatic compounds 2 0 2 306,000 0.14%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Mercury compounds 2 0 2 16,000 0.01%
MARATHON PETROLEUM CO LP GARYVILLE LA Mercury compounds 2 0 2 15,000 0.01%
TESORO ALASKA - KENAI REFINERY KENAI AK Xylene (mixed isomers) 2 0 2 8 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Tetrachloroethylene 1 40 5 11,466 0.01%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Benzene 1 6,400 379 20,858,213 9.29%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY 1,2,4-Trimethylbenzene 1 0 1 100 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA 1,2,4-Trimethylbenzene 1 4,750 281 28,077 0.01%
BLANCHARD REFINING CO LLC TEXAS CITY TX Polycyclic aromatic compounds 1 0 1 180,000 0.08%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY Cumene 1 0 1 10 0.00%
TESORO VINVALE TERMINAL SOUTH GATE CA Cyclohexane 1 0 1 1 0.00%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY n-Hexane 1 0 1 17 0.00%
TESORO VINVALE TERMINAL SOUTH GATE CA n-Hexane 1 0 1 17 0.00%
MPLX TERMINALS LLC - OREGON OH TERMINAL OREGON OH Xylene (mixed isomers) 1 0 1 5 0.00%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Benzene 1 0 1 55,000 0.02%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY Benzene 1 0 1 55,000 0.02%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Ethylbenzene 1 1,810 186 204,182 0.09%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Naphthalene 1 0 1 50 0.00%
TESORO VINVALE TERMINAL SOUTH GATE CA Ethylbenzene 1 0 1 1,100 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA n-Hexane 1 4 1 17 0.00%
TESORO VINVALE TERMINAL SOUTH GATE CA Benzene 1 0 1 55,000 0.02%
TESORO VINVALE TERMINAL SOUTH GATE CA 1,2,4-Trimethylbenzene 1 0 1 100 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX Copper compounds 1 0 1 1,500 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX Phenanthrene 1 0 1 0 0.00%
MPLX TERMINALS LLC - CHARLESTON WV TERMINAL CHARLESTON WV Ethylbenzene 1 0 1 1,100 0.00%
MPLX TERMINALS LLC - KENOVA WV TERMINAL KENOVA WV Toluene 1 0 1 13 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Toluene 1 0 1 13 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Mercury 1 0 1 10,031 0.00%
MARATHON PETROLEUM CO LP GARYVILLE LA Carbon disulfide 1 0 1 10 0.00%
TESORO MANDAN REFINERY MANDAN ND Toluene 1 0 1 13 0.00%
TESORO MANDAN REFINERY MANDAN ND Benzene 1 0 1 55,000 0.02%
BLANCHARD REFINING CO LLC TEXAS CITY TX Cresol (mixed isomers) 1 0 1 20 0.00%
MPLX TERMINALS LLC - CHARLESTON WV TERMINAL CHARLESTON WV Benzene 1 0 1 55,000 0.02%
MPLX TERMINALS LLC - CHARLOTTE NC WEST TERMINAL CHARLOTTE NC Naphthalene 1 0 1 50 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Benzo(g,h,i)perylene 1 0 1 12,000 0.01%
TESORO ALASKA - KENAI REFINERY KENAI AK Naphthalene 1 0 1 30 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Polycyclic aromatic compounds 0 0 0 72,000 0.03%
TESORO ALASKA - KENAI REFINERY KENAI AK Toluene 0 0 0 4 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK Ethylbenzene 0 0 0 330 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK 1,2,4-Trimethylbenzene 0 0 0 30 0.00%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Mercury compounds 0 0 0 3,000 0.00%
TESORO MANDAN REFINERY MANDAN ND Mercury compounds 0 0 0 2,000 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Mercury compounds 0 0 0 1,000 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK Benzo(g,h,i)perylene 0 0 0 2,000 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Benzo(g,h,i)perylene 0 0 0 2,000 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Mercury compounds 0 1 0 4,143 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK Benzene 0 0 0 5,500 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Dioxin and dioxin-like compounds 0 0 0 1,778,112 0.79%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Dioxin and dioxin-like compounds 0 0 0 124,622 0.06%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Dioxin and dioxin-like compounds 0 0 0 26,085 0.01%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Naphthalene 0 1,400 56 2,807 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Cumene 0 143 3 28 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Ammonia 0 5,282 2,118 0 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Styrene 0 18 1 5 0.00%
MPLX TERMINALS LLC - LOUISVILLE ALGON KY TERMINAL LOUISVILLE KY Xylene (mixed isomers) 0 55 2 11 0.00%
MPLX TERMINALS LLC - LOUISVILLE ALGON KY TERMINAL LOUISVILLE KY Toluene 0 83 4 54 0.00%
MPLX TERMINALS LLC - LOUISVILLE ALGON KY TERMINAL LOUISVILLE KY Ethylbenzene 0 7 1 785 0.00%
MPLX TERMINALS LLC - LOUISVILLE ALGON KY TERMINAL LOUISVILLE KY Benzene 0 15 1 48,758 0.02%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Hydrogen sulfide 0 1,102 61 109,891 0.05%
MPLX TERMINALS LLC - LOUISVILLE ALGON KY TERMINAL LOUISVILLE KY Lead compounds 0 1 0 7,231 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Diethanolamine 0 36,100 2,866 2,035,102 0.91%
CINCINNATI RENEWABLE FUELS LLC CINCINNATI OH Methanol 0 15,210 1,206 1,206 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Cresol (mixed isomers) 0 15,800 1,206 24,111 0.01%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Polycyclic aromatic compounds 0 121 9 1,603,008 0.71%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Benzo(g,h,i)perylene 0 8 0 0 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Cyclohexane 0 3 0 0 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Naphthalene 0 121 5 243 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI n-Hexane 0 3 0 0 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Toluene 0 3 0 2 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI 1,3-Butadiene 0 3 0 8,844 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Ethylbenzene 0 3 0 337 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Cumene 0 3 0 1 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI 1,2,4-Trimethylbenzene 0 3 0 18 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Naphthalene 0 14 1 28 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Carbon disulfide 0 3 0 4 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Xylene (mixed isomers) 0 9 0 2 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Ammonia 0 0 0 0 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Xylene (mixed isomers) 0 1,976 78 388 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Benzo(g,h,i)perylene 0 121 0 0 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND n-Hexane 0 404 0 4 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND 1,3-Butadiene 0 1 0 2,093 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Ethylbenzene 0 502 51 56,324 0.03%
ANDEAVOR DICKINSON REFINERY DICKINSON ND 1,2,4-Trimethylbenzene 0 70 4 412 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Benzene 0 1,200 71 3,900,602 1.74%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Polycyclic aromatic compounds 0 30 2 390,816 0.17%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Nitrate compounds 0 49,057 0 0 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Mercury compounds 0 0 0 1,257 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Lead compounds 0 4 1 24,322 0.01%
WESTERN EL PASO REFINERY EL PASO TX Benzene 0 1,302 77 4,232,154 1.89%
WESTERN EL PASO REFINERY EL PASO TX Naphthalene 0 139 6 279 0.00%
WESTERN EL PASO REFINERY EL PASO TX Ethylbenzene 0 476 49 53,407 0.02%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Ethylbenzene 0 205 21 23,001 0.01%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Toluene 0 5,956 300 3,902 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT n-Hexane 0 627 0 6 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Cyclohexane 0 356 40 23 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Anthracene 0 193 11 37 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Xylene (mixed isomers) 0 7,427 292 1,459 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Benzene 0 3 0 9,752 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Hydrogen sulfide 0 5,933 329 591,639 0.26%
MPLX TERMINALS LLC - SPEEDWAY IN TERMINAL INDIANAPOLIS IN Xylene (mixed isomers) 0 1 0 0 0.00%
MPLX TERMINALS LLC - SPEEDWAY IN TERMINAL INDIANAPOLIS IN Toluene 0 2 0 1 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Methanol 0 216,000 17,129 17,129 0.01%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Cumene 0 3,276 63 632 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT 1,2,4-Trimethylbenzene 0 479 28 2,821 0.00%
WESTERN EL PASO REFINERY EL PASO TX Toluene 0 2,502 126 1,639 0.00%
WESTERN EL PASO REFINERY EL PASO TX Benzo(g,h,i)perylene 0 28 0 0 0.00%
WESTERN EL PASO REFINERY EL PASO TX Molybdenum trioxide 0 29 28 10,742 0.00%
WESTERN EL PASO REFINERY EL PASO TX Xylene (mixed isomers) 0 2,193 86 431 0.00%
WESTERN EL PASO REFINERY EL PASO TX Lead 0 11 4 72,310 0.03%
WESTERN EL PASO REFINERY EL PASO TX Ammonia 0 2,747 1,102 0 0.00%
WESTERN EL PASO REFINERY EL PASO TX Polycyclic aromatic compounds 0 66 5 874,368 0.39%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Benzene 0 4,335 256 14,090,926 6.28%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Phenanthrene 0 197 12 0 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Naphthalene 0 413 17 828 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Biphenyl 0 301 3 2,746 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Hydrogen cyanide 0 82 76 129,252 0.06%

Toxic hazard: Pounds of direct releases to surface water and estimated releases from transfers to Publicly Operated Treatment Works (POTW's) reported in the US Environmental Protection Agency's Toxics Release Inventory for the year 2017, weighted by toxicity of chemicals. Weights are from the EPA's Risk-Screening Environmental Indicators project. For details, see technical notes.

Quantity of toxic surface water releases and POTW transfers: Pounds of toxic chemicals released directly to surface water at each TRI facility or transferred off-site to a POTW, without weighting for toxicity or population.

Quantity of toxic post-treatment releases: Pounds of toxic chemicals released directly to surface water plus released after treatment at POTW's.

* Split: if 50% appears in this column, then the facility's releases have been split among two 50/50% ownership parent companies for their parent company data, although the full pounds and hazard are displayed here.

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