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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 released post-treatment.)
(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.)
Split *
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%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Methanol 0 216,000 17,129 17,129 0.01%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Ammonia 35 27,000 10,862 0 0.00%
MARATHON PETROLEUM CO LP GARYVILLE LA Ammonia 4,447 0 4,447 0 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Zinc compounds 361 11,318 4,192 13,834 0.01%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Ammonia 3,200 0 3,200 0 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Diethanolamine 0 36,100 2,866 2,035,102 0.91%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Nitrate compounds 2,366 0 2,366 1,491 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 Phenol 3 24,300 1,911 6,305 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%
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%
WESTERN EL PASO REFINERY EL PASO TX Ammonia 0 2,747 1,102 0 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%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Toluene 2 11,100 561 7,299 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%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Xylene (mixed isomers) 3 13,100 518 2,589 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 Benzene 1 6,400 379 20,858,213 9.29%
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%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Hydrogen sulfide 0 5,933 329 591,639 0.26%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Toluene 307 0 307 3,991 0.00%
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 Xylene (mixed isomers) 0 7,427 292 1,459 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Naphthalene 291 0 291 14,550 0.01%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA 1,2,4-Trimethylbenzene 1 4,750 281 28,077 0.01%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Benzene 0 4,335 256 14,090,926 6.28%
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%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Ethylbenzene 1 1,810 186 204,182 0.09%
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%
WESTERN EL PASO REFINERY EL PASO TX Toluene 0 2,502 126 1,639 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%
WESTERN EL PASO REFINERY EL PASO TX Xylene (mixed isomers) 0 2,193 86 431 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Nickel 80 8 85 7,746 0.00%
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%
MPLX TERMINALS LLC - KENOVA WV TERMINAL KENOVA WV Benzene 79 0 79 4,345,000 1.94%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Xylene (mixed isomers) 0 1,976 78 388 0.00%
WESTERN EL PASO REFINERY EL PASO TX Benzene 0 1,302 77 4,232,154 1.89%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Hydrogen cyanide 0 82 76 129,252 0.06%
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%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Benzene 0 1,200 71 3,900,602 1.74%
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%
MARATHON PETROLEUM CO LP GARYVILLE LA Toluene 64 0 64 832 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Nickel compounds 64 0 64 5,824 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Cumene 0 3,276 63 632 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Hydrogen sulfide 0 1,102 61 109,891 0.05%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Lead compounds 58 0 58 1,044,000 0.47%
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 Nickel compounds 11 69 54 4,876 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Ethylbenzene 0 502 51 56,324 0.03%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Hydrogen sulfide 50 0 50 90,000 0.04%
WESTERN EL PASO REFINERY EL PASO TX Ethylbenzene 0 476 49 53,407 0.02%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Nickel compounds 47 0 47 4,277 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Cyclohexane 0 356 40 23 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 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%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Benzene 29 0 29 1,595,000 0.71%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Chromium compounds 29 0 29 14,500,000 6.46%
WESTERN EL PASO REFINERY EL PASO TX Molybdenum trioxide 0 29 28 10,742 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT 1,2,4-Trimethylbenzene 0 479 28 2,821 0.00%
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 LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Lead compounds 4 56 25 445,036 0.20%
TESORO MANDAN REFINERY MANDAN ND Hydrogen cyanide 24 0 24 40,800 0.02%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA 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%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Ethylbenzene 0 205 21 23,001 0.01%
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 Toluene 18 0 18 234 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 Ethylbenzene 18 0 18 19,800 0.01%
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 Benzene 18 0 18 990,000 0.44%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL 1,3-Butadiene 18 0 18 1,980,000 0.88%
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 REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Naphthalene 0 413 17 828 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%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Naphthalene 15 0 15 750 0.00%
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%
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%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Lead compounds 11 3 12 217,261 0.10%
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 Anthracene 0 193 11 37 0.00%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Cobalt compounds 11 0 11 0 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Polycyclic aromatic compounds 10 0 10 1,854,000 0.83%
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 GARYVILLE LA Benzene 10 0 10 550,000 0.24%
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 OHIO REFINING DIV CANTON OH Vanadium compounds 9 0 9 1,260 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Polycyclic aromatic compounds 0 121 9 1,603,008 0.71%
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%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN Toluene 7 0 7 91 0.00%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Xylene (mixed isomers) 7 0 7 35 0.00%
TESORO MANDAN REFINERY MANDAN ND Lead compounds 7 0 7 117,000 0.05%
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%
MARATHON PETROLEUM CO LP GARYVILLE LA Ethylbenzene 6 0 6 6,600 0.00%
WESTERN EL PASO REFINERY EL PASO TX Naphthalene 0 139 6 279 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Tetrachloroethylene 1 40 5 11,466 0.01%
MPLX TERMINALS LLC - BRECKSVILLE OH TERMINAL BRECKSVILLE OH Lead compounds 5 0 5 95,400 0.04%
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%
MPLX TERMINALS LLC - CHARLESTON WV TERMINAL CHARLESTON WV Xylene (mixed isomers) 5 0 5 25 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Toluene 5 0 5 65 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%
WESTERN EL PASO REFINERY EL PASO TX Polycyclic aromatic compounds 0 66 5 874,368 0.39%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Naphthalene 0 121 5 243 0.00%
MPLX TERMINALS LLC - LOUISVILLE ALGON KY TERMINAL LOUISVILLE KY Toluene 0 83 4 54 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND 1,2,4-Trimethylbenzene 0 70 4 412 0.00%
WESTERN EL PASO REFINERY EL PASO TX Lead 0 11 4 72,310 0.03%
TESORO VINVALE TERMINAL SOUTH GATE CA Xylene (mixed isomers) 4 0 4 20 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Xylene (mixed isomers) 4 0 4 20 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Vanadium compounds 4 0 4 560 0.00%
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 REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT Biphenyl 0 301 3 2,746 0.00%
CATLETTSBURG REFINING LLC CATLETTSBURG KY Styrene 3 0 3 15 0.00%
BLANCHARD TERMINAL CO - CHARLOTTE EAST NC TERMINAL CHARLOTTE NC Naphthalene 3 0 3 150 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Xylene (mixed isomers) 3 0 3 15 0.00%
MARATHON PETROLEUM CO - NORTH BEND OH TERMINAL NORTH BEND OH Hydrogen sulfide 3 0 3 5,400 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Cumene 0 143 3 28 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK Polycyclic aromatic compounds 3 0 3 486,000 0.22%
TESORO ALASKA - KENAI REFINERY KENAI AK Lead compounds 3 0 3 48,600 0.02%
TESORO ALASKA - KENAI REFINERY KENAI AK Hydrogen sulfide 2 0 2 4,320 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Polycyclic aromatic compounds 0 30 2 390,816 0.17%
MPLX TERMINALS LLC - LOUISVILLE ALGON KY TERMINAL LOUISVILLE KY Xylene (mixed isomers) 0 55 2 11 0.00%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY Toluene 2 0 2 26 0.00%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY Xylene (mixed isomers) 2 0 2 10 0.00%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Toluene 2 0 2 26 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Carbon disulfide 2 0 2 20 0.00%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH 1,2,4-Trimethylbenzene 2 0 2 200 0.00%
TESORO MANDAN REFINERY MANDAN ND Carbon disulfide 2 0 2 20 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%
TESORO MANDAN REFINERY MANDAN ND Xylene (mixed isomers) 2 0 2 10 0.00%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Benzene 2 0 2 110,000 0.05%
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK MN 1,3-Butadiene 2 0 2 220,000 0.10%
TESORO REFINING & MARKETING CO LLC ANACORTES WA Ethylbenzene 2 0 2 2,200 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 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%
TESORO ALASKA - KENAI REFINERY KENAI AK Xylene (mixed isomers) 2 0 2 8 0.00%
MARATHON PETROLEUM CO LP GARYVILLE LA Mercury compounds 2 0 2 15,000 0.01%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Lead compounds 0 4 1 24,322 0.01%
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV ROBINSON IL Mercury 1 0 1 10,031 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA n-Hexane 1 4 1 17 0.00%
MPLX TERMINALS LLC - CHARLOTTE NC WEST TERMINAL CHARLOTTE NC Naphthalene 1 0 1 50 0.00%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY Cumene 1 0 1 10 0.00%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY 1,2,4-Trimethylbenzene 1 0 1 100 0.00%
TESORO VINVALE TERMINAL SOUTH GATE CA 1,2,4-Trimethylbenzene 1 0 1 100 0.00%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Naphthalene 1 0 1 50 0.00%
MPLX TERMINALS LLC - CHARLESTON WV TERMINAL CHARLESTON WV Benzene 1 0 1 55,000 0.02%
MARATHON PETROLEUM CO LP OHIO REFINING DIV CANTON OH Benzene 1 0 1 55,000 0.02%
MPLX TERMINALS LLC - CHARLESTON WV TERMINAL CHARLESTON WV Ethylbenzene 1 0 1 1,100 0.00%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY Benzene 1 0 1 55,000 0.02%
MPLX TERMINALS LLC - PADUCAH KY TERMINAL PADUCAH KY n-Hexane 1 0 1 17 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%
MPLX TERMINALS LLC - OREGON OH TERMINAL OREGON OH Xylene (mixed isomers) 1 0 1 5 0.00%
TESORO VINVALE TERMINAL SOUTH GATE CA n-Hexane 1 0 1 17 0.00%
TESORO MANDAN REFINERY MANDAN ND Toluene 1 0 1 13 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX Phenanthrene 1 0 1 0 0.00%
BLANCHARD REFINING CO LLC TEXAS CITY TX Polycyclic aromatic compounds 1 0 1 180,000 0.08%
BLANCHARD REFINING CO LLC TEXAS CITY TX Copper compounds 1 0 1 1,500 0.00%
TESORO VINVALE TERMINAL SOUTH GATE CA Benzene 1 0 1 55,000 0.02%
TESORO VINVALE TERMINAL SOUTH GATE CA Ethylbenzene 1 0 1 1,100 0.00%
TESORO VINVALE TERMINAL SOUTH GATE CA Cyclohexane 1 0 1 1 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%
MARATHON PETROLEUM CO LP GARYVILLE LA Carbon disulfide 1 0 1 10 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 Benzene 0 15 1 48,758 0.02%
MPLX TERMINALS LLC - LOUISVILLE ALGON KY TERMINAL LOUISVILLE KY Ethylbenzene 0 7 1 785 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK Naphthalene 1 0 1 30 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Benzo(g,h,i)perylene 1 0 1 12,000 0.01%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Naphthalene 0 14 1 28 0.00%
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON CA Mercury compounds 0 1 0 4,143 0.00%
MPLX TERMINALS LLC - LOUISVILLE ALGON KY TERMINAL LOUISVILLE KY Lead compounds 0 1 0 7,231 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Polycyclic aromatic compounds 0 0 0 72,000 0.03%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Carbon disulfide 0 3 0 4 0.00%
TESORO REFINING & MARKETING COMPANY LLC - SLC SALT LAKE CITY UT n-Hexane 0 627 0 6 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 Cyclohexane 0 3 0 0 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Ethylbenzene 0 3 0 337 0.00%
MARATHON PETROLEUM CO LP (PART) TEXAS CITY TX Mercury compounds 0 0 0 3,000 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK 1,2,4-Trimethylbenzene 0 0 0 30 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK Ethylbenzene 0 0 0 330 0.00%
TESORO ALASKA - KENAI REFINERY KENAI AK Toluene 0 0 0 4 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND n-Hexane 0 404 0 4 0.00%
TESORO MANDAN REFINERY MANDAN ND Mercury compounds 0 0 0 2,000 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Ammonia 0 0 0 0 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Benzene 0 3 0 9,752 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 Toluene 0 3 0 2 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Mercury compounds 0 0 0 1,257 0.00%
MPLX TERMINALS LLC - SPEEDWAY IN TERMINAL INDIANAPOLIS IN Toluene 0 2 0 1 0.00%
TESORO REFINING & MARKETING CO LLC MARTINEZ CA Benzo(g,h,i)perylene 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 ALASKA - KENAI REFINERY KENAI AK Benzene 0 0 0 5,500 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 Cumene 0 3 0 1 0.00%
MPLX TERMINALS LLC - SPEEDWAY IN TERMINAL INDIANAPOLIS IN Xylene (mixed isomers) 0 1 0 0 0.00%
ANDEAVOR DICKINSON REFINERY DICKINSON ND 1,3-Butadiene 0 1 0 2,093 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI n-Hexane 0 3 0 0 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%
ANDEAVOR DICKINSON REFINERY DICKINSON ND Benzo(g,h,i)perylene 0 121 0 0 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Nitrate compounds 0 49,057 0 0 0.00%
WESTERN EL PASO REFINERY EL PASO TX Benzo(g,h,i)perylene 0 28 0 0 0.00%
MARATHON PETROLEUM CO LP - MICHIGAN REFINING DIV DETROIT MI Benzo(g,h,i)perylene 0 8 0 0 0.00%

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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