| 1 | ECW LANDFILL CORP. | Ponce | Hazardous Waste | 2.0M lbs | 2 |
| 2 | VIATRIS PHARMACEUTICALS LLC | Barceloneta | Chemicals | 1.1M lbs | 8 |
| 3 | AES PUERTO RICO LP | Guayama | Electric Utilities | 875.7K lbs | 17 |
| 4 | PREPA-SOUTH COAST POWER PLANT | Guayanilla | Electric Utilities | 262.7K lbs | 6 |
| 5 | ECOELECTRICA LP | Penuelas | Electric Utilities | 185.1K lbs | 1 |
| 6 | SARTORIUS STEDIM FILTERS INC | Yauco | Plastics and Rubber | 149.9K lbs | 1 |
| 7 | LANCO MANUFACTURING CORP | San Lorenzo | Chemicals | 142.8K lbs | 9 |
| 8 | PREPA - AGUIRRE POWER GENERATI ON COMPLEX | Aguirre | Electric Utilities | 140.1K lbs | 8 |
| 9 | PREPA - PALO SECO STEAM PLANT | Toa Baja | Electric Utilities | 132.1K lbs | 5 |
| 10 | CARIBBEAN CAN MANUFACTURING CO LLC | Cidra | Fabricated Metals | 113.7K lbs | 2 |
| 11 | FMC AGRICULTURAL CARIBE INDUSTRIES LTD | Manati | Chemicals | 100.5K lbs | 8 |
| 12 | CELANESE MICROCIRCUITS INDUSTRIES LTD. | Manati | Primary Metals | 84.0K lbs | 4 |
| 13 | PREPA - SAN JUAN STEAM PLANT | Puerto Nuevo | Electric Utilities | 74.8K lbs | 6 |
| 14 | LILLY DEL CARIBE INC CAROLIN A | Carolina | Chemicals | 45.1K lbs | 4 |
| 15 | EATON INTELLIGENT POWER LTD | Las Piedras | Electrical Equipment | 33.6K lbs | 5 |
| 16 | PAN PEPIN | Bayamon | Food | 29.0K lbs | 1 |
| 17 | BAXTER HEALTHCARE OF PUERTO RICO LLC | Guayama | Chemicals | 20.6K lbs | 4 |
| 18 | CONGAR INTERNATIONAL CORP | Cayey | Tobacco | 20.1K lbs | 1 |
| 19 | EATON INTELLIGENT POWER LTD | Arecibo | Electrical Equipment | 16.5K lbs | 4 |
| 20 | PAN AMERICAN GRAIN MANUFACTURING | Guaynabo | Food | 13.6K lbs | 1 |
| 21 | IDI CARIBE INC | Salinas | Chemicals | 11.9K lbs | 2 |
| 22 | BUCKEYE CARIBBEAN TERMINALS LLC (FORMER SCYI) | Yabucoa | Petroleum Bulk Terminals | 11.7K lbs | 11 |
| 23 | BEST PETROLEUM CORP BULK TERMINAL | Guaynabo | Petroleum Bulk Terminals | 9.9K lbs | 8 |
| 24 | PUERTO RICO ENERGY LLC - BAYAMON TERMINAL | Bayamon | Petroleum Bulk Terminals | 9.1K lbs | 11 |
| 25 | HUBBELL CARIBE LTD | Vega Baja | Electrical Equipment | 8.3K lbs | 7 |
| 26 | PALL LIFE SCIENCES PUERTO RICO LLC | Fajardo | Miscellaneous Manufacturing | 8.1K lbs | 1 |
| 27 | US ARMY NATIONAL GUARD CAMP SANTIAGO TRAINING CENTER-RANGES | Salinas | Other | 7.6K lbs | 1 |
| 28 | SUPER ASPHALT GUAYNABO PLANT | Guaynabo | Petroleum | 7.5K lbs | 1 |
| 29 | PUERTO RICO ENERGY LLC - GUAYNABO 2 TERMINAL | Guaynabo | Petroleum Bulk Terminals | 6.6K lbs | 12 |
| 30 | PEERLESS OIL & CHEMICALS INC. | Penuelas | Petroleum Bulk Terminals | 6.5K lbs | 11 |
| 31 | TO-RICOS LTD | Aibonito | Food | 5.5K lbs | 2 |
| 32 | INDUSTRIAL C&S OF PR LLC ARECIBO PLANT | Arecibo | Fabricated Metals | 5.2K lbs | 2 |
| 33 | COMBE PRODUCTS INC. | Naguabo | Chemicals | 5.0K lbs | 1 |
| 34 | SUIZA DAIRY CORP | San Juan | Food | 4.4K lbs | 3 |
| 35 | ISLAND LITHO CORP. | Bayamon | Fabricated Metals | 3.7K lbs | 3 |
| 36 | HARRIS PAINTS CORP. | Bayamon | Chemicals | 3.1K lbs | 8 |
| 37 | SUIZA DAIRY CORP | Aguadilla | Food | 2.9K lbs | 2 |
| 38 | ASPHALT SOLUTIONS TOA ALTA | Toa Alta | Petroleum | 2.7K lbs | 1 |
| 39 | COMPANIA CERVECERA DE PUERTO RICO INC. | Mayaguez | Beverages | 2.5K lbs | 2 |
| 40 | PLANTA HATILLO | Hatillo | Petroleum | 2.3K lbs | 1 |
| 41 | ISLAND CAN CARRIBEAN INC | Bayamon | Fabricated Metals | 2.2K lbs | 2 |
| 42 | SUPER ASPHALT CANOVANAS PLANT | Canovanas | Petroleum | 2.2K lbs | 1 |
| 43 | TOTAL GUAYNABO BULK TERMINAL | Guaynabo | Petroleum Bulk Terminals | 2.1K lbs | 9 |
| 44 | EDWARDS LIFESCIENCES TECHNOLOGY SARL | Anasco | Miscellaneous Manufacturing | 2.0K lbs | 2 |
| 45 | OLEIN RECOVERY CORP: (REFINERY PLANT) | Yabucoa | Petroleum | 2.0K lbs | 1 |
| 46 | ASPEN SURGICAL PR CORP | Las Piedras | Miscellaneous Manufacturing | 1.6K lbs | 2 |
| 47 | BARD SHANNON LTD | Humacao | Miscellaneous Manufacturing | 1.5K lbs | 1 |
| 48 | PLANTA PENUELAS | Penuelas | Petroleum | 1.2K lbs | 1 |
| 49 | STERI-TECH INC. | Salinas | Miscellaneous Manufacturing | 991 lbs | 1 |
| 50 | FENWAL INTERNATIONAL INC | San German | Miscellaneous Manufacturing | 905 lbs | 2 |
| 51 | ABBVIE LTD | Barceloneta | Chemicals | 861 lbs | 5 |
| 52 | TALLABOA PUERTO RICO LLC | Penuelas | Petroleum | 750 lbs | 1 |
| 53 | CARIBE METALLURGICAL | Bayamon | Fabricated Metals | 698 lbs | 1 |
| 54 | BACARDI CORP | Catano | Beverages | 652 lbs | 5 |
| 55 | SUPER ASPHALT SALINAS PLANT | Salinas | Petroleum | 639 lbs | 1 |
| 56 | AMGEN MANUFACTURING LTD LLC | Juncos | Chemicals | 427 lbs | 1 |
| 57 | PREPA-CAMBALACHE COMBUSTION TURBINE PLANT | Arecibo | Electric Utilities | 315 lbs | 2 |
| 58 | PETROLEUM PRODUCTS SUPPLY LLC | Guaynabo | Petroleum | 250 lbs | 1 |
| 59 | HINDUSTAN PLATINUM PR LLC | Humacao | Electrical Equipment | 217 lbs | 2 |
| 60 | CARIBBEAN REFRESCOS INC. | Cidra | Food | 187 lbs | 3 |
| 61 | MAYAGUEZ GAS TURBINES POWER PLANT | Mayaguez | Electric Utilities | 162 lbs | 2 |
| 62 | BASF AGRICULTURAL PRODUCTS DE PUERTO RICO | Manati | Chemicals | 139 lbs | 2 |
| 63 | COOPERVISION MANUFACTURING PUERTO RICO LLC | Juana Diaz | Miscellaneous Manufacturing | 132 lbs | 1 |
| 64 | MAYS CHEMICAL CO OF PR DBA MAYS OCHOA | Catano | Chemical Wholesalers | 109 lbs | 4 |
| 65 | THERMO KING PUERTO RICO MANUFACTURA INC. | Arecibo | Machinery | 83 lbs | 6 |
| 66 | PUERTO RICO ENERGY LLC FUEL DEPOT | Carolina | Petroleum Bulk Terminals | 81 lbs | 1 |
| 67 | AVIATION FUEL TERMNAL | Carolina | Petroleum Bulk Terminals | 79 lbs | 5 |
| 68 | HAMILTON SUNDSTRAND DE PUERTO RICO INC. | Santa Isabel | Transportation Equipment | 62 lbs | 3 |
| 69 | TEVA PUERTO RICO LLC | Fajardo | Chemicals | 35 lbs | 1 |
| 70 | DANOSA CARIBBEAN INC | Bayamon | Petroleum | 34 lbs | 1 |
| 71 | PREPA-DAGUAO GAS TURBINES POWER PLANT | Ceiba | Electric Utilities | 31 lbs | 2 |
| 72 | EATON INTELLIGENT POWER LTD. | Coamo | Electrical Equipment | 25 lbs | 1 |
| 73 | QUALITY ELECTROPLATING CORP | Caguas | Fabricated Metals | 25 lbs | 4 |
| 74 | MEDTRONIC PUERTO RICO OPERATIONS CO. | Humacao | Miscellaneous Manufacturing | 21 lbs | 1 |
| 75 | PREPA-JOBOS GAS TURBINES POWER PLANT | Guayama | Electric Utilities | 18 lbs | 2 |
| 76 | BAXTER HEALTHCARE OF PUERTO RICO | Aibonito | Miscellaneous Manufacturing | 15 lbs | 1 |
| 77 | CENTURY PACKING CORP | Las Piedras | Food | 14 lbs | 1 |
| 78 | FENWAL INTERNATIONAL INC | Maricao | Chemicals | 11 lbs | 1 |
| 79 | BAXTER HEALTHCARE OF PUERTO RICO LLC | Jayuya | Chemicals | 10 lbs | 1 |
| 80 | ZIMMER MANUFACTURING B.V. | Mercedita | Miscellaneous Manufacturing | 10 lbs | 2 |
| 81 | CLOROX MANUFACTURING CO OF PUERTO R ICO INC. | Caguas | Chemicals | 6 lbs | 1 |
| 82 | MAX CHEMICAL INC | Rio Piedras | Chemicals | 5 lbs | 4 |
| 83 | CURTIS INSTRUMENTS (PR) INC | Carolina | Computers and Electronic Products | 4 lbs | 1 |
| 84 | LUTRON SM INC | Humacao | Electrical Equipment | 1 lbs | 1 |
| 85 | ARGOS PUERTO RICO CORP. | Dorado | Other | 1 lbs | 1 |
| 86 | WATER TREATMENT SPECIALIST INC | Catano | Chemicals | 1 lbs | 1 |
| 87 | BOEHRINGER INGELHEIM ANIMAL HEALTH PUERTO RICO LLC | Barceloneta | Chemicals | 0 lbs | 1 |
| 88 | WESTROCK-PUERTO RICO INC | Guaynabo | Paper | 0 lbs | 2 |
| 89 | EATON CORP | Canovanas | Electrical Equipment | 0 lbs | 1 |
| 90 | PUERTO RICO WOOD TREATING | Carolina | Wood Products | 0 lbs | 1 |
| 91 | ADM ALLIANCE NUTRITION OF PR LLC | Hatillo | Food | 0 lbs | 2 |
| 92 | MASTER PAINTS & CHEMICALS CORP | Guayanilla | Chemicals | 0 lbs | 4 |
| 93 | SOUTHERN WOOD TREATING INC | Guayanilla | Wood Products | 0 lbs | 1 |
| 94 | BRISTOL-MYERS SQUIBB MANUFACTURING CO UNLIMITED CO | Humacao | Chemicals | 0 lbs | 1 |
| 95 | BRISTOL-MYERS SQUIBB HOLDINGS PHARMA LTD LIABILITY CO | Manati | Chemicals | 0 lbs | 1 |
| 96 | THERMO FISHER SCIENTIFIC INC. | Manati | Chemicals | 0 lbs | 1 |
| 97 | PONCE CAN | Ponce | Fabricated Metals | 0 lbs | 1 |
| 98 | ARROYO MANUFACTURING INC. | Arroyo | Fabricated Metals | 0 lbs | 1 |
| 99 | IMCD PUERTO RICO INC | Caguas | Chemical Wholesalers | 0 lbs | 3 |
| 100 | CUSTOMED | Fajardo | Miscellaneous Manufacturing | 0 lbs | 1 |
| 101 | HENKEL PUERTO RICO INC | Sabana Grande | Chemicals | 0 lbs | 4 |
| 102 | BORICUA WOOD PROCESSING INC. | Toa Baja | Wood Products | 0 lbs | 1 |
| 103 | ABB INSTALLATION PRODUCTS CARIBE LLC | Vega Baja | Electrical Equipment | 0 lbs | 1 |
| 104 | TO-RICOS LTD LAS PIEDRAS FEED MILL | Las Piedras | Food | 0 lbs | 1 |
| 105 | LASER PRODUCT INC | Juncos | Chemicals | 0 lbs | 1 |
| 106 | PREPA-YABUCOA GAS TURBINES POW ER PLANT | Humacao | Electric Utilities | 0 lbs | 1 |
| 107 | INDULAC | Hato Rey | Food | 0 lbs | 1 |
| 108 | GULF TREATING CORP | Puerto Nuevo | Wood Products | 0 lbs | 1 |
| 109 | MOLINOS DE PUERTO RICO | Guaynabo | Food | 0 lbs | 1 |