Most Polluting Industries — EPA Data
| # | Industry | NAICS | Facilities | Violations | Penalties |
|---|---|---|---|---|---|
| 1 | Crude Petroleum Extraction | 211120 | 13,350 | 833 | $351,203,817 |
| 2 | Petroleum Refineries | 324110 | 499 | 1,787 | $190,340,175 |
| 3 | All Other Basic Organic Chemical Manufacturing | 325199 | 1,356 | 2,601 | $72,942,728 |
| 4 | Sewage Treatment Facilities | 221320 | 14,104 | 43,984 | $66,640,619 |
| 5 | Petrochemical Manufacturing | 325110 | 229 | 442 | $48,706,646 |
| 6 | Plastics Material and Resin Manufacturing | 325211 | 1,543 | 1,863 | $42,693,363 |
| 7 | Fossil Fuel Electric Power Generation | 221112 | 4,446 | 4,230 | $22,126,468 |
| 8 | National Security | 928110 | 1,488 | 1,360 | $21,338,640 |
| 9 | Hazardous Waste Treatment and Disposal | 562211 | 1,060 | 1,555 | $14,418,210 |
| 10 | Cement Manufacturing | 327310 | 310 | 886 | $12,849,254 |
| 11 | Iron and Steel Mills and Ferroalloy Manufacturing | 331110 | 297 | 858 | $12,062,939 |
| 12 | Solid Waste Landfill | 562212 | 3,393 | 4,113 | $7,781,364 |
| 13 | General Medical and Surgical Hospitals | 622110 | 4,165 | 1,831 | $3,273,795 |
| 14 | Pharmaceutical Preparation Manufacturing | 325412 | 2,194 | 1,242 | $2,097,958 |
| 15 | Animal (except Poultry) Slaughtering | 311611 | 673 | 929 | $1,431,148 |
| 16 | Paper (except Newsprint) Mills | 322121 | 259 | 334 | $1,227,337 |
| 17 | Other Nonhazardous Waste Treatment and Disposal | 562219 | 841 | 655 | $1,211,445 |
| 18 | Highway, Street, and Bridge Construction | 237310 | 15,134 | 664 | $1,099,997 |
| 19 | Water Supply and Irrigation Systems | 221310 | 3,987 | 3,134 | $833,054 |
| 20 | Pipeline Transportation of Crude Oil | 486110 | 1,101 | 130 | $645,945 |
| 21 | Gasoline Stations with Convenience Stores | 447110 | 6,221 | 646 | $617,334 |
| 22 | Solid Waste Collection | 562111 | 2,048 | 977 | $560,584 |
| 23 | Aircraft Manufacturing | 336411 | 674 | 447 | $424,204 |
| 24 | Dairy Cattle and Milk Production | 112120 | 619 | 1,500 | $194,738 |