| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 396 | 0 | 57,984 | 9.93% | 14.2% | 21.8% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 575 | 0 | 50,725 | 8.68% | 12.3% | 8.3% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Cadmium compounds | 71 | 0 | 49,960 | 8.55% | 25.6% | 79.9% | |
| CLEVELAND-CLIFFS STEEL CORP DEARBORN WORKS | DEARBORN | MI | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 272 | 0 | 47,174 | 8.08% | 30.9% | 45.4% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Nickel compounds | 310 | 0 | 33,279 | 5.70% | 14.2% | 21.8% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 225 | 0 | 32,779 | 5.61% | 25.7% | 79.9% | |
| CLEVELAND-CLIFFS RIVERDALE LLC | RIVERDALE | IL | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 81 | 0 | 23,288 | 3.99% | 23.9% | 80.8% | |
| CLEVELAND-CLIFFS TUBULAR COMPONENTS LLC WALBRIDGE | WALBRIDGE | OH | Chromium | 24 | 0 | 19,514 | 3.34% | 19.5% | 28.9% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC | CLEVELAND | OH | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 124 | 0 | 18,077 | 3.09% | 29.8% | 51.8% | |
| CLEVELAND-CLIFFS PLATE LLC COATESVILLE FACILITY | COATESVILLE | PA | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 396 | 0 | 17,845 | 3.06% | 14.6% | 44.5% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Benzene | 17,207 | 2 | 17,334 | 2.97% | 16.6% | 51.0% | |
| CLEVELAND-CLIFFS STEEL CORP - MANSFIELD WORKS | MANSFIELD | OH | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 1,430 | 0 | 14,071 | 2.41% | 15.2% | 29.3% | |
| CLEVELAND-CLIFFS WEIRTON LLC | WEIRTON | WV | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 491 | 0 | 13,080 | 2.24% | 12.4% | 11.9% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Cobalt compounds | 5 | 0 | 12,315 | 2.11% | 12.4% | 8.0% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Cadmium compounds | 44 | 0 | 11,013 | 1.89% | 19.4% | 69.1% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Nickel compounds | 165 | 0 | 10,567 | 1.81% | 12.3% | 8.3% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Hydrogen sulfide | 56,500 | 0 | 9,455 | 1.62% | 22.6% | 75.8% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Quinoline | 107 | 1,143 | 8,581 | 1.47% | 34.9% | 37.5% | |
| CLEVELAND-CLIFFS STEELTON LLC | STEELTON | PA | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 47 | 0 | 8,538 | 1.46% | 13.0% | 39.0% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Polycyclic aromatic compounds | 1,048 | 346 | 7,240 | 1.24% | 14.2% | 37.1% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Nickel compounds | 252 | 0 | 6,578 | 1.13% | 16.9% | 52.5% | |
| CLEVELAND-CLIFFS PLATE LLC COATESVILLE FACILITY | COATESVILLE | PA | Nickel compounds | 196 | 0 | 6,391 | 1.09% | 14.6% | 44.5% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Manganese compounds | 4,425 | 0 | 5,866 | 1.00% | 14.1% | 21.8% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 113 | 0 | 5,649 | 0.97% | 19.4% | 69.0% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC | CLEVELAND | OH | Manganese compounds | 3,250 | 0 | 5,583 | 0.96% | 30.3% | 52.1% | |
| CLEVELAND-CLIFFS STEEL CORP DEARBORN WORKS | DEARBORN | MI | Manganese compounds | 2,673 | 0 | 5,574 | 0.95% | 31.3% | 45.3% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Benzene | 9,064 | 2,608 | 5,231 | 0.90% | 31.2% | 33.3% | |
| CLEVELAND-CLIFFS RIVERDALE LLC | RIVERDALE | IL | Manganese compounds | 1,845 | 0 | 4,981 | 0.85% | 24.0% | 80.9% | |
| CLEVELAND-CLIFFS TUBULAR COMPONENTS | COLUMBUS | IN | Chromium | 18 | 0 | 4,893 | 0.84% | 12.3% | 21.7% | |
| CLEVELAND-CLIFFS STEEL CORP DEARBORN WORKS | DEARBORN | MI | Nickel compounds | 158 | 0 | 4,851 | 0.83% | 24.7% | 46.4% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Manganese compounds | 4,100 | 0 | 4,736 | 0.81% | 25.4% | 79.4% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 98 | 0 | 3,996 | 0.68% | 16.8% | 51.9% | |
| CLEVELAND-CLIFFS RIVERDALE LLC | RIVERDALE | IL | Nickel compounds | 19 | 0 | 3,778 | 0.65% | 23.8% | 80.6% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Benzene | 4,245 | 218 | 3,396 | 0.58% | 16.1% | 22.6% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Polycyclic aromatic compounds | 529 | 20,364 | 3,371 | 0.58% | 39.6% | 42.4% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Benzene | 8,300 | 1,600 | 3,225 | 0.55% | 20.0% | 16.9% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Polycyclic aromatic compounds | 222 | 6,223 | 3,218 | 0.55% | 23.1% | 32.8% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Polycyclic aromatic compounds | 397 | 0 | 2,651 | 0.45% | 17.7% | 66.0% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 26,281 | 0 | 2,514 | 0.43% | 15.7% | 21.9% | |
| CLEVELAND-CLIFFS STEEL CORP | COSHOCTON | OH | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 422 | 0 | 2,309 | 0.40% | 16.5% | 6.5% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Nickel compounds | 30 | 0 | 2,055 | 0.35% | 24.7% | 78.1% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Naphthalene | 7,418 | 39,302 | 2,037 | 0.35% | 34.9% | 37.3% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Hydrogen sulfide | 20,819 | 0 | 1,927 | 0.33% | 16.3% | 48.7% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC | CLEVELAND | OH | Lead compounds | 527 | 0 | 1,659 | 0.28% | 30.2% | 52.1% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Naphthalene | 4,772 | 723 | 1,608 | 0.28% | 16.2% | 47.8% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Nickel compounds | 55 | 0 | 1,518 | 0.26% | 17.8% | 65.6% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Lead compounds | 501 | 0 | 1,361 | 0.23% | 25.7% | 80.1% | |
| CLEVELAND-CLIFFS STEEL CORP DEARBORN WORKS | DEARBORN | MI | Lead compounds | 741 | 0 | 1,226 | 0.21% | 29.2% | 45.7% | |
| CLEVELAND-CLIFFS PIEDMONT | CONOVER | NC | Manganese | 1,730 | 0 | 1,179 | 0.20% | 10.9% | 26.2% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Lead compounds | 3,177 | 0 | 1,170 | 0.20% | 17.6% | 56.7% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Lead compounds | 978 | 0 | 1,101 | 0.19% | 13.7% | 22.6% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Manganese compounds | 1,860 | 0 | 981 | 0.17% | 20.0% | 70.3% | |
| CLEVELAND-CLIFFS PLATE LLC CONSHOHOCKEN FACILITY | CONSHOHOCKEN | PA | Nickel | 8 | 0 | 980 | 0.17% | 10.6% | 39.9% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Naphthalene | 2,457 | 11,000 | 978 | 0.17% | 25.2% | 20.1% | |
| CLEVELAND-CLIFFS STEEL CORP | COSHOCTON | OH | Nickel compounds | 186 | 0 | 759 | 0.13% | 16.6% | 6.5% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Cobalt | 6 | 0 | 723 | 0.12% | 17.4% | 67.9% | |
| CLEVELAND-CLIFFS PLATE LLC CONSHOHOCKEN FACILITY | CONSHOHOCKEN | PA | Chromium | 4 | 0 | 680 | 0.12% | 10.6% | 39.9% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 14,327 | 0 | 670 | 0.11% | 23.5% | 24.7% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Manganese compounds | 937 | 0 | 628 | 0.11% | 12.3% | 8.6% | |
| CLEVELAND-CLIFFS STEELTON LLC | STEELTON | PA | Manganese compounds | 348 | 0 | 600 | 0.10% | 13.1% | 39.4% | |
| CLEVELAND-CLIFFS RIVERDALE LLC | RIVERDALE | IL | Lead compounds | 141 | 0 | 592 | 0.10% | 23.2% | 79.4% | |
| CLEVELAND-CLIFFS STEELTON LLC | STEELTON | PA | Nickel compounds | 5 | 0 | 568 | 0.10% | 12.3% | 35.9% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Mercury | 328 | 0 | 462 | 0.08% | 14.2% | 21.8% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Polycyclic aromatic compounds | 43 | 7,700 | 386 | 0.07% | 26.7% | 21.1% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Manganese compounds | 913 | 0 | 372 | 0.06% | 16.7% | 51.5% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Hydrogen sulfide | 1,562 | 0 | 357 | 0.06% | 26.2% | 81.0% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Zinc compounds | 32,567 | 0 | 329 | 0.06% | 14.1% | 21.9% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Mercury compounds | 576 | 0 | 320 | 0.05% | 16.5% | 50.3% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Lead compounds | 265 | 0 | 298 | 0.05% | 12.2% | 8.8% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | 1,3-Butadiene | 108 | 0 | 293 | 0.05% | 14.8% | 40.3% | |
| FLEETWOOD METAL INDUSTRIES INC. | SYLACAUGA | AL | Chromium | 1 | 0 | 284 | 0.05% | 14.2% | 35.1% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Zinc compounds | 23,100 | 0 | 279 | 0.05% | 25.8% | 80.2% | |
| CLEVELAND-CLIFFS RIVERDALE LLC | RIVERDALE | IL | Molybdenum trioxide | 127 | 0 | 275 | 0.05% | 22.2% | 77.4% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Naphthalene | 584 | 7,394 | 252 | 0.04% | 19.2% | 27.2% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Lead compounds | 349 | 0 | 239 | 0.04% | 17.8% | 65.7% | |
| CLEVELAND-CLIFFS PLATE LLC COATESVILLE FACILITY | COATESVILLE | PA | Manganese compounds | 531 | 0 | 238 | 0.04% | 15.1% | 45.7% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC | CLEVELAND | OH | Zinc compounds | 17,574 | 0 | 219 | 0.04% | 30.0% | 52.0% | |
| CLEVELAND-CLIFFS TUBULAR COMPONENTS LLC WALBRIDGE | WALBRIDGE | OH | Nickel | 3 | 0 | 174 | 0.03% | 19.5% | 28.9% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Chromium | 28 | 0 | 168 | 0.03% | 17.4% | 67.9% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Arsenic | 2 | 0 | 155 | 0.03% | 17.4% | 67.9% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Vanadium compounds | 93 | 0 | 136 | 0.02% | 25.5% | 79.7% | |
| CLEVELAND-CLIFFS STEEL CORP - MANSFIELD WORKS | MANSFIELD | OH | Nickel compounds | 18 | 0 | 131 | 0.02% | 15.2% | 29.5% | |
| CLEVELAND-CLIFFS STEEL CORP - ZANESVI LLE WORKS | ZANESVILLE | OH | Nickel compounds | 1 | 0 | 119 | 0.02% | 20.0% | 20.1% | |
| CLEVELAND-CLIFFS STEEL CORP - ZANESVI LLE WORKS | ZANESVILLE | OH | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 1 | 0 | 117 | 0.02% | 20.0% | 20.0% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Dioxin and dioxin-like compounds (Manufacturing; and the processing or otherwise use of dioxin and dioxin like compounds if the dioxin and dioxin like compounds are present as contaminants in a chemical and if they were created during the manufacturing of that chemical.) | 0 | 0 | 110 | 0.02% | 16.4% | 49.4% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Hydrogen cyanide | 422 | 0 | 110 | 0.02% | 16.4% | 49.6% | |
| CLEVELAND-CLIFFS STEEL CORP DEARBORN WORKS | DEARBORN | MI | Zinc compounds | 11,057 | 0 | 97 | 0.02% | 29.9% | 45.6% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Hydrogen sulfide | 1,688 | 0 | 80 | 0.01% | 33.9% | 36.4% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Zinc compounds | 13,300 | 0 | 76 | 0.01% | 21.0% | 72.5% | |
| CLEVELAND-CLIFFS STEELTON LLC | STEELTON | PA | Lead compounds | 15 | 0 | 70 | 0.01% | 14.6% | 45.3% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Nickel | 16 | 0 | 69 | 0.01% | 17.4% | 67.9% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC | CLEVELAND | OH | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 59 | 0 | 65 | 0.01% | 30.4% | 52.3% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Hydrogen fluoride (Hydrofluoric acid) | 8,177 | 0 | 63 | 0.01% | 12.0% | 9.7% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Benzo[g,h,i]perylene | 120 | 610 | 62 | 0.01% | 26.6% | 21.0% | |
| CLEVELAND-CLIFFS STEEL CORP - ZANESVI LLE WORKS | ZANESVILLE | OH | Certain glycol ethers | 11,196 | 0 | 58 | 0.01% | 18.8% | 13.7% | |
| CLEVELAND-CLIFFS RIVERDALE LLC | RIVERDALE | IL | Zinc compounds | 2,759 | 0 | 51 | 0.01% | 23.2% | 79.5% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Cyanide compounds | 368 | 0 | 51 | 0.01% | 16.7% | 23.6% | |
| CLEVELAND-CLIFFS TUBULAR COMPONENTS | COLUMBUS | IN | Nickel | 3 | 0 | 44 | 0.01% | 12.3% | 21.7% | |
| CLEVELAND-CLIFFS STEELTON LLC | STEELTON | PA | Mercury compounds | 28 | 0 | 43 | 0.01% | 12.6% | 37.1% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Zinc compounds | 8,641 | 0 | 42 | 0.01% | 12.2% | 8.8% | |
| CLEVELAND-CLIFFS STEEL CORP - MANSFIELD WORKS | MANSFIELD | OH | Manganese compounds | 447 | 0 | 41 | 0.01% | 15.2% | 29.4% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Hydrogen sulfide | 1,270 | 0 | 39 | 0.01% | 21.9% | 18.0% | |
| CLEVELAND-CLIFFS PLATE LLC COATESVILLE FACILITY | COATESVILLE | PA | Lead compounds | 53 | 0 | 38 | 0.01% | 13.6% | 42.3% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Vanadium compounds | 80 | 0 | 38 | 0.01% | 18.6% | 67.5% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 10,359 | 0 | 33 | 0.01% | 12.2% | 25.3% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 122 | 0 | 28 | 0.00% | 18.4% | 67.1% | |
| CLEVELAND-CLIFFS STEEL CORP DEARBORN WORKS | DEARBORN | MI | Mercury compounds | 58 | 0 | 24 | 0.00% | 25.1% | 46.3% | |
| CLEVELAND-CLIFFS TUBULAR COMPONENTS LLC WALBRIDGE | WALBRIDGE | OH | Manganese compounds | 36 | 0 | 24 | 0.00% | 19.5% | 28.9% | |
| CLEVELAND-CLIFFS STEEL CORP | COSHOCTON | OH | Nitric acid | 16,604 | 0 | 20 | 0.00% | 16.7% | 6.5% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Hydrogen sulfide | 223 | 0 | 20 | 0.00% | 20.2% | 29.3% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 91,698 | 0 | 20 | 0.00% | 16.8% | 52.0% | |
| CLEVELAND-CLIFFS STEEL CORP - MANSFIELD WORKS | MANSFIELD | OH | Lead compounds | 105 | 0 | 18 | 0.00% | 15.2% | 29.3% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Molybdenum trioxide | 21 | 0 | 18 | 0.00% | 12.3% | 8.5% | |
| CLEVELAND-CLIFFS WEIRTON LLC | WEIRTON | WV | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,900 | 0 | 18 | 0.00% | 12.4% | 12.0% | |
| CLEVELAND-CLIFFS STEELTON LLC | STEELTON | PA | Zinc compounds | 1,224 | 0 | 18 | 0.00% | 13.2% | 39.7% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 113 | 0 | 17 | 0.00% | 26.1% | 80.6% | |
| CLEVELAND-CLIFFS STEEL CORP DEARBORN WORKS | DEARBORN | MI | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 63 | 0 | 17 | 0.00% | 32.0% | 45.3% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Vanadium compounds | 57 | 0 | 16 | 0.00% | 17.2% | 54.6% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 3,305 | 0 | 15 | 0.00% | 16.6% | 63.3% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC | CLEVELAND | OH | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 93 | 0 | 15 | 0.00% | 30.1% | 52.2% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Vanadium compounds | 20 | 0 | 15 | 0.00% | 12.2% | 8.6% | |
| CLEVELAND-CLIFFS PLATE LLC COATESVILLE FACILITY | COATESVILLE | PA | Zinc compounds | 4,821 | 0 | 15 | 0.00% | 13.6% | 42.3% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 41 | 0 | 14 | 0.00% | 23.4% | 75.7% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 241 | 0 | 14 | 0.00% | 16.3% | 49.0% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Mercury compounds | 25 | 0 | 14 | 0.00% | 12.2% | 8.8% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Benzo[g,h,i]perylene | 39 | 786 | 14 | 0.00% | 38.9% | 41.5% | |
| CLEVELAND-CLIFFS STEEL CORP - ZANESVI LLE WORKS | ZANESVILLE | OH | Hydrogen fluoride (Hydrofluoric acid) | 910 | 0 | 12 | 0.00% | 19.3% | 16.8% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Chlorine | 5 | 0 | 11 | 0.00% | 22.4% | 75.3% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 60,000 | 0 | 11 | 0.00% | 16.6% | 63.2% | |
| CLEVELAND-CLIFFS PLATE LLC CONSHOHOCKEN FACILITY | CONSHOHOCKEN | PA | Manganese | 7 | 0 | 10 | 0.00% | 10.7% | 40.1% | |
| CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS | BUTLER | PA | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 113 | 0 | 10 | 0.00% | 12.3% | 8.3% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Benzo[g,h,i]perylene | 11 | 661 | 8 | 0.00% | 22.7% | 32.3% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Manganese | 149 | 0 | 8 | 0.00% | 17.4% | 67.9% | |
| CLEVELAND-CLIFFS RIVERDALE LLC | RIVERDALE | IL | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 30 | 0 | 8 | 0.00% | 23.7% | 80.4% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC | CLEVELAND | OH | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 27,280 | 0 | 8 | 0.00% | 25.2% | 49.2% | |
| CLEVELAND-CLIFFS PLATE LLC COATESVILLE FACILITY | COATESVILLE | PA | Mercury compounds | 20 | 0 | 7 | 0.00% | 13.6% | 42.4% | |
| CLEVELAND-CLIFFS TUBULAR COMPONENTS | COLUMBUS | IN | Manganese compounds | 27 | 0 | 6 | 0.00% | 12.3% | 21.7% | |
| I/N KOTE | NEW CARLISLE | IN | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,631 | 0 | 6 | 0.00% | 13.3% | 25.0% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Lead compounds | 9 | 0 | 5 | 0.00% | 15.9% | 22.3% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Vanadium (except when contained in an alloy) | 82 | 0 | 5 | 0.00% | 17.4% | 67.9% | |
| CLEVELAND-CLIFFS STEEL CORP (ROCKPORT WORKS ) | ROCKPORT | IN | Chromium | 1 | 0 | 5 | 0.00% | 12.0% | 13.8% | |
| CLEVELAND-CLIFFS STEEL CORP - MANSFIELD WORKS | MANSFIELD | OH | Zinc compounds | 6,380 | 0 | 5 | 0.00% | 15.2% | 29.3% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Lead compounds | 12 | 0 | 4 | 0.00% | 27.1% | 28.7% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 71 | 0 | 4 | 0.00% | 20.1% | 70.6% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | n-Hexane (Hexane) | 34,000 | 0 | 4 | 0.00% | 16.7% | 63.4% | |
| CLEVELAND-CLIFFS WEIRTON LLC | WEIRTON | WV | Manganese compounds | 17 | 0 | 4 | 0.00% | 12.4% | 12.0% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Biphenyl | 188 | 1,322 | 4 | 0.00% | 34.6% | 37.1% | |
| CLEVELAND-CLIFFS PLATE LLC COATESVILLE FACILITY | COATESVILLE | PA | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 82 | 0 | 4 | 0.00% | 14.7% | 44.9% | |
| CLEVELAND-CLIFFS STEELTON LLC | STEELTON | PA | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 19 | 0 | 4 | 0.00% | 13.3% | 40.2% | |
| IRONUNITS LLC | TOLEDO | OH | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 31,700 | 0 | 4 | 0.00% | 20.7% | 33.9% | |
| CLEVELAND-CLIFFS STEEL CORP | COSHOCTON | OH | Hydrogen fluoride (Hydrofluoric acid) | 2,711 | 0 | 3 | 0.00% | 16.7% | 6.5% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Mercury compounds | 9 | 0 | 3 | 0.00% | 15.9% | 22.2% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Lead compounds | 4 | 0 | 3 | 0.00% | 23.9% | 19.3% | |
| DOUBLE G COATINGS CO LP | JACKSON | MS | Zinc compounds | 585 | 0 | 3 | 0.00% | 12.0% | 72.8% | 50% |
| IRONUNITS LLC | TOLEDO | OH | Lead | 2 | 0 | 3 | 0.00% | 24.1% | 40.2% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 21,000 | 0 | 3 | 0.00% | 16.4% | 62.4% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Zinc compounds | 406 | 0 | 2 | 0.00% | 16.4% | 49.6% | |
| CLEVELAND-CLIFFS STEEL CORP | COSHOCTON | OH | Manganese compounds | 46 | 0 | 2 | 0.00% | 16.5% | 6.5% | |
| CLEVELAND-CLIFFS COLUMBUS LLC | COLUMBUS | OH | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 2,641 | 0 | 2 | 0.00% | 17.2% | 45.3% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Biphenyl | 54 | 0 | 2 | 0.00% | 16.2% | 48.1% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 17,055 | 0 | 2 | 0.00% | 12.2% | 25.3% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Dioxin and dioxin-like compounds (Manufacturing; and the processing or otherwise use of dioxin and dioxin like compounds if the dioxin and dioxin like compounds are present as contaminants in a chemical and if they were created during the manufacturing of that chemical.) | 0 | 0 | 2 | 0.00% | 16.6% | 63.2% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Mercury compounds | 6 | 0 | 2 | 0.00% | 16.9% | 63.8% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC | CLEVELAND | OH | Mercury compounds | 3 | 0 | 2 | 0.00% | 26.6% | 50.0% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Naphthalene | 9 | 3,129 | 2 | 0.00% | 12.1% | 25.2% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 8 | 0 | 2 | 0.00% | 16.4% | 49.5% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 15,565 | 0 | 2 | 0.00% | 25.6% | 27.0% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Mercury | 9 | 0 | 1 | 0.00% | 25.0% | 26.4% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | n-Hexane (Hexane) | 12,000 | 0 | 1 | 0.00% | 16.5% | 62.6% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 112 | 0 | 1 | 0.00% | 16.4% | 49.9% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Polycyclic aromatic compounds | 0 | 0 | 1 | 0.00% | 17.4% | 65.0% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC | CLEVELAND | OH | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 188 | 0 | 1 | 0.00% | 19.8% | 46.0% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 4,080 | 0 | 1 | 0.00% | 16.2% | 22.8% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Xylene (mixed isomers) | 858 | 0 | 1 | 0.00% | 15.9% | 21.8% | |
| CLEVELAND-CLIFFS STEEL CORP (ROCKPORT WORKS ) | ROCKPORT | IN | Hydrogen fluoride (Hydrofluoric acid) | 920 | 0 | 1 | 0.00% | 12.0% | 13.8% | |
| CLEVELAND-CLIFFS COLUMBUS LLC | COLUMBUS | OH | Lead compounds | 0 | 0 | 1 | 0.00% | 17.7% | 46.9% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Ethylbenzene | 29 | 322 | 1 | 0.00% | 34.6% | 37.1% | |
| CLEVELAND-CLIFFS RIVERDALE LLC | RIVERDALE | IL | Methanol | 13,484 | 0 | 1 | 0.00% | 24.6% | 82.2% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 2,357 | 0 | 1 | 0.00% | 24.3% | 19.6% | |
| CLEVELAND-CLIFFS STEEL CORP - ZANESVI LLE WORKS | ZANESVILLE | OH | Lead compounds | 0 | 0 | 1 | 0.00% | 20.0% | 20.0% | |
| CLEVELAND-CLIFFS STEEL CORP - MANSFIELD WORKS | MANSFIELD | OH | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 53 | 0 | 1 | 0.00% | 15.3% | 30.0% | |
| I/N KOTE | NEW CARLISLE | IN | Nickel compounds | 0 | 0 | 0 | 0.00% | 15.1% | 28.1% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Xylene (mixed isomers) | 849 | 1,465 | 0 | 0.00% | 28.9% | 30.7% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Mercury compounds | 2 | 0 | 0 | 0.00% | 17.2% | 63.9% | |
| CLEVELAND-CLIFFS STEEL CORP (ROCKPORT WORKS ) | ROCKPORT | IN | Nitric acid | 460 | 0 | 0 | 0.00% | 12.0% | 13.8% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Methanol | 35,664 | 0 | 0 | 0.00% | 16.4% | 49.4% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Selenium compounds | 159 | 0 | 0 | 0.00% | 16.9% | 52.0% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Mercury compounds | 3 | 0 | 0 | 0.00% | 12.5% | 12.3% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 12 | 0 | 0 | 0.00% | 12.2% | 25.2% | |
| I/N KOTE | NEW CARLISLE | IN | Zinc compounds | 408 | 0 | 0 | 0.00% | 15.1% | 28.1% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Carbonyl sulfide | 12 | 0 | 0 | 0.00% | 16.4% | 49.6% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Barium | 7 | 0 | 0 | 0.00% | 17.4% | 67.9% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Benzo[g,h,i]perylene | 1 | 0 | 0 | 0.00% | 17.5% | 65.5% | |
| CLEVELAND-CLIFFS STEEL CORP - ZANESVI LLE WORKS | ZANESVILLE | OH | Mercury compounds | 0 | 0 | 0 | 0.00% | 20.0% | 20.1% | |
| CLEVELAND-CLIFFS COLUMBUS LLC | COLUMBUS | OH | Zinc compounds | 12 | 0 | 0 | 0.00% | 17.7% | 46.9% | |
| CLEVELAND-CLIFFS STEEL CORP | COSHOCTON | OH | Lead compounds | 0 | 0 | 0 | 0.00% | 19.1% | 6.5% | |
| CLEVELAND-CLIFFS PLATE LLC CONSHOHOCKEN FACILITY | CONSHOHOCKEN | PA | Lead compounds | 0 | 0 | 0 | 0.00% | 10.9% | 40.5% | |
| CLEVELAND-CLIFFS STEEL CORP (ROCKPORT WORKS ) | ROCKPORT | IN | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 6,740 | 0 | 0 | 0.00% | 12.0% | 13.8% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Ethylene | 9,927 | 0 | 0 | 0.00% | 16.2% | 22.5% | |
| FLEETWOOD METAL INDUSTRIES INC. | SYLACAUGA | AL | Manganese | 1 | 0 | 0 | 0.00% | 14.2% | 35.1% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Ethylene | 4,819 | 0 | 0 | 0.00% | 16.1% | 47.9% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Thallium | 2 | 0 | 0 | 0.00% | 17.4% | 67.9% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Lead | 1 | 0 | 0 | 0.00% | 17.4% | 67.9% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Pyridine | 2 | 0 | 0 | 0.00% | 16.4% | 49.5% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Xylene (mixed isomers) | 60 | 2 | 0 | 0.00% | 16.0% | 47.0% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Xylene (mixed isomers) | 145 | 54 | 0 | 0.00% | 23.0% | 18.7% | |
| CLEVELAND-CLIFFS RIVERDALE LLC | RIVERDALE | IL | Aluminum (fume or dust) | 0 | 0 | 0 | 0.00% | 24.6% | 82.1% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Propylene | 2,300 | 0 | 0 | 0.00% | 16.5% | 22.6% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | 1,2,4-Trimethylbenzene | 51 | 572 | 0 | 0.00% | 36.3% | 38.9% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Toluene | 5,627 | 2 | 0 | 0.00% | 17.3% | 55.1% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Ethylene | 3,962 | 0 | 0 | 0.00% | 34.7% | 37.2% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Antimony | 1 | 0 | 0 | 0.00% | 17.5% | 68.1% | |
| DOUBLE G COATINGS CO LP | JACKSON | MS | Lead compounds | 0 | 0 | 0 | 0.00% | 12.0% | 72.8% | 50% |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Ethylene | 7,200 | 0 | 0 | 0.00% | 19.7% | 16.7% | |
| I/N KOTE | NEW CARLISLE | IN | Manganese compounds | 1 | 0 | 0 | 0.00% | 15.1% | 28.1% | |
| CLEVELAND-CLIFFS STEEL CORP | COSHOCTON | OH | Mercury compounds | 0 | 0 | 0 | 0.00% | 19.1% | 6.5% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Propylene | 964 | 0 | 0 | 0.00% | 15.7% | 44.9% | |
| FLEETWOOD METAL INDUSTRIES INC. | SYLACAUGA | AL | Nickel | 0 | 0 | 0 | 0.00% | 14.2% | 35.1% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Toluene | 3,190 | 1,715 | 0 | 0.00% | 27.1% | 28.7% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Lead compounds | 0 | 0 | 0 | 0.00% | 14.8% | 61.1% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Anthracene | 355 | 6,788 | 0 | 0.00% | 36.7% | 39.3% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Selenium compounds | 4 | 0 | 0 | 0.00% | 21.5% | 73.3% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Propylene | 705 | 0 | 0 | 0.00% | 36.0% | 38.5% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Toluene | 873 | 0 | 0 | 0.00% | 16.0% | 22.3% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Cumene | 36 | 0 | 0 | 0.00% | 16.2% | 48.2% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Phenol | 33 | 3,287 | 0 | 0.00% | 36.0% | 38.5% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Styrene | 300 | 286 | 0 | 0.00% | 27.5% | 29.0% | |
| ARCELORMITTAL TEXAS HBI LLC | PORTLAND | TX | Copper | 2 | 0 | 0 | 0.00% | 17.4% | 67.9% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Toluene | 1,440 | 53 | 0 | 0.00% | 18.1% | 15.6% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Anthracene | 200 | 63 | 0 | 0.00% | 17.3% | 54.5% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Styrene | 125 | 0 | 0 | 0.00% | 16.3% | 48.6% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Phenol | 7 | 1 | 0 | 0.00% | 15.7% | 44.9% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Carbon disulfide | 12 | 0 | 0 | 0.00% | 16.4% | 49.6% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Anthracene | 23 | 653 | 0 | 0.00% | 21.6% | 30.9% | |
| CLEVELAND-CLIFFS STEEL LLC | EAST CHICAGO | IN | Benzo[g,h,i]perylene | 0 | 0 | 0 | 0.00% | 17.2% | 64.5% | |
| CLEVELAND-CLIFFS STEEL CORP - MANSFIELD WORKS | MANSFIELD | OH | Mercury | 0 | 0 | 0 | 0.00% | 15.2% | 29.3% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Cresol (mixed isomers) | 25 | 3 | 0 | 0.00% | 16.9% | 52.1% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Anthracene | 15 | 1,300 | 0 | 0.00% | 25.8% | 20.5% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Phenanthrene | 123 | 3,453 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS MONESSEN COKE LLC | MONESSEN | PA | Dibenzofuran | 27 | 353 | 0 | 0.00% | 0.0% | 0.0% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Phenanthrene | 230 | 5,600 | 0 | 0.00% | 0.0% | 0.0% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Dibenzofuran | 79 | 1,300 | 0 | 0.00% | 0.0% | 0.0% | |
| MOUNTAIN STATE CARBON LLC | FOLLANSBEE | WV | Cresol (mixed isomers) | 0 | 250 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Phenanthrene | 671 | 14,147 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Pyridine | 0 | 364 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Dibenzofuran | 248 | 4,073 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Cresol (mixed isomers) | 0 | 4,073 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS CLEVELAND WORKS LLC DBA CLEVELAND-CLIFFS WA | WARREN | OH | Cyanide compounds | 0 | 7 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Phenanthrene | 0 | 1,451 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS INC. | MIDDLETOWN | OH | Polycyclic aromatic compounds | 0 | 1,999 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Phenanthrene | 2,492 | 298 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Ethylbenzene | 0 | 0 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Dibenzofuran | 231 | 78 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Benzo[g,h,i]perylene | 0 | 32 | 0 | 0.00% | 0.0% | 0.0% | |
| CLEVELAND-CLIFFS BURNS HARBOR LLC | BURNS HARBOR | IN | Lithium carbonate | 489 | 0 | 0 | 0.00% | 0.0% | 0.0% | |
