| CBCoe Bridgewater LLC | Bridgewater Township | NJ | — | ◐ LIKELY ACTIVE |
| CFColonial Foundation Terminal Asphalt Refinery | Savannah | GA | — | ◐ LIKELY ACTIVE |
| CCCooper Chem CO | Long Valley | NJ | — | ◐ LIKELY ACTIVE |
| CCCorpus Christi Polymer Plant | Corpus Christi | TX | — | ◐ LIKELY ACTIVE |
| CCCortec Corporation | Saint Paul | MN | 20–99 | ◐ LIKELY ACTIVE |
| CPCosmic Plastics INC | Valencia | CA | 20–99 | ◐ LIKELY ACTIVE |
| CLCovestro LLC | Proctor | WV | — | ◐ LIKELY ACTIVE |
| CMCovoro Mining Solutions LLC | Memphis | TN | 100–499 | ◐ LIKELY ACTIVE |
| CPCrossfield Products CORP. | Roselle Park | NJ | — | ◐ LIKELY ACTIVE |
| CICytec Industries Inc. - Mt. Pleasant | Mount Pleasant | TN | 20–99 | ◐ LIKELY ACTIVE |
| DADaeha America CORP | Lagrange | GA | 20–99 | ◐ LIKELY ACTIVE |
| DADak Americas LLC - Cape Fear Site | Leland | NC | — | ◐ LIKELY ACTIVE |
| DCDana Container, INC. | Wilmington | DE | — | ◐ LIKELY ACTIVE |
| DSDdp Specialty Electronic Materials US 9, LLC | Greensboro | NC | — | ◐ LIKELY ACTIVE |
| DPDelmar Products | Berlin | CT | 20–99 | ◐ LIKELY ACTIVE |
| DSDiamond State Port Corporation - R/r Flood Controls | Wilmington | DE | — | ◐ LIKELY ACTIVE |
| DCDiversified Chemical Technologies Operating (DCTO-DTW & HP) | Detroit | MI | 20–99 | ◐ LIKELY ACTIVE |
| DPDiversified Plastics Corp Nixa MO | Nixa | MO | 100–499 | ◐ LIKELY ACTIVE |
| DCDixie Chemical Bayport Facility | Pasadena | TX | — | ◐ LIKELY ACTIVE |
| DSDoe/wsrc Savannah River Site | Jackson | SC | — | ◐ LIKELY ACTIVE |
| DYDominion Yorktown Phase I and Phase Ii | Grafton | VA | — | ◐ LIKELY ACTIVE |
| DKDosch - King Emulsions, INC. | Whippany | NJ | — | ◐ LIKELY ACTIVE |
| DCDow Chemical-midland | Midland | MI | — | ◐ LIKELY ACTIVE |
Dow Silicones Corporation-midland Site | Midland | MI | — | ◐ LIKELY ACTIVE |
| DSDr Schneider Automotive Systems | Russell Springs | KY | — | ◐ LIKELY ACTIVE |
| DDrta | Rincon | GA | — | ◐ LIKELY ACTIVE |
| DCDsm Chemicals North America | Augusta | GA | — | ◐ LIKELY ACTIVE |
| DCDubois Chemicals, INC | Sharonville | OH | — | ◐ LIKELY ACTIVE |
| DMDupont Marshall Lab | Philadelphia | PA | — | ◐ LIKELY ACTIVE |
| DPDupont Polymer Products, LLC | Moncks Corner | SC | — | ◐ LIKELY ACTIVE |
| EWEastern Wholesale Fence | Salisbury | NC | — | ◐ LIKELY ACTIVE |
| ECEastman Carpentersville Plant | Carpentersville | IL | — | ◐ LIKELY ACTIVE |
| ESEcobat Solutions LLC | Casa Grande | AZ | 20–99 | ◐ LIKELY ACTIVE |
| ESEco Services Operations CORP | Hammond | IN | 20–99 | ◐ LIKELY ACTIVE |
| EDEi Dorado, City Of-ouachita River Joint Pipeline | El Dorado | AR | — | ◐ LIKELY ACTIVE |
| EDE.i. Du Pont De Nemours & Company | Newark | DE | — | ◐ LIKELY ACTIVE |
| EAEkc Advanced Electronics Usa, LLC | Parlin | NJ | 1–19 | ◐ LIKELY ACTIVE |
| ECElite Crete Systems Incorporated | Valparaiso | IN | 20–99 | ◐ LIKELY ACTIVE |
| EMElkem Metals Company | Ashtabula | OH | — | ◐ LIKELY ACTIVE |
| ESElkem Silicones Advanced Specialties | York | SC | 1–19 | ◐ LIKELY ACTIVE |
| EMEmd Millipore CORP | Norwood | OH | — | ◐ LIKELY ACTIVE |
| EPEmerald Performance Materials LLC | Henry | IL | — | ◐ LIKELY ACTIVE |
| ESEnergy Security Partners Gtl Plant | Redfield | AR | — | ◐ LIKELY ACTIVE |
| EKEnf Kyle Technology LLC | Kyle | TX | 20–99 | ◐ LIKELY ACTIVE |
| EMEnterprise Morgan's Point Complex | La Porte | TX | — | ◐ LIKELY ACTIVE |
| EMEnvironmental Manufacturing Solutions LLC | Melbourne | FL | — | ◐ LIKELY ACTIVE |
| EDEnzyme Development Corporation | Scranton | PA | 20–99 | ◐ LIKELY ACTIVE |
| EEEquilon Enterprises LLC dba Shell Oil Products US - Norco Refinery | Norco | LA | 500+ | ◐ LIKELY ACTIVE |
| EEEquilon Enterprises LLC Shell Oil Prod | Wilmington | CA | — | ◐ LIKELY ACTIVE |
| ECEquistar Chemicals LP | Edison | NJ | 20–99 | ◐ LIKELY ACTIVE |