| TFTechnology Fragances & Flavors | Amityville | NY | — | ◇ UNVERIFIED |
| TLTechnology Laboratories International in | Memphis | TN | — | ◇ UNVERIFIED |
| TCTechsol Chemical Company, INC. | Huntington | WV | — | ◇ UNVERIFIED |
| TCTek Chemical Site | Portland | OR | — | ◇ UNVERIFIED |
| TATeknor Apex CO | Attleboro | MA | — | ◇ UNVERIFIED |
| TTeknos | Charlotte | NC | — | ◇ UNVERIFIED |
| TKTessenderlo Kerley INC | Fresno | CA | — | ◇ UNVERIFIED |
| TSTetco Schulkill Rpj Mp 205.43 | Reading | PA | — | ◇ UNVERIFIED |
| TCTetra Chemicals | Westlake | LA | — | ◇ UNVERIFIED |
| TFTexas Fluorescence Laboratories | Austin | TX | — | ◇ UNVERIFIED |
| TGTexas Gulf Industries, INC. | Baltimore | MD | — | ◇ UNVERIFIED |
| TCThatcher Chemical of Florida INC | Palmetto | FL | — | ◇ UNVERIFIED |
 Thatcher Company of California, INC. - Stockton | Stockton | CA | — | ◇ UNVERIFIED |
| TCThatcher Company of New Mexico, INC. | Farmington | NM | — | ◇ UNVERIFIED |
| TCThe Clorox Company | Pleasanton | CA | — | ◇ UNVERIFIED |
| TCThe Clorox Company | Jersey City | NJ | — | ◇ UNVERIFIED |
| TDThe Dow Chemical Company | Magnolia | AR | — | ◇ UNVERIFIED |
| TLThe Lewis Chemical CO. | Rome | GA | — | ◇ UNVERIFIED |
| TMThe Midland Certified Reagent | Midland | TX | — | ◇ UNVERIFIED |
| TLTheodor Leonhard Wax Company, INC. | Haledon | NJ | — | ◇ UNVERIFIED |
| TPThe Piedmont Group Incorporated | Spartanburg | SC | — | ◇ UNVERIFIED |
| TETherm-o-rock East INC | Donora | PA | — | ◇ UNVERIFIED |
| TWThe Whitaker Company | Spartanburg | SC | — | ◇ UNVERIFIED |
| TFThin Film Concepts | Elmsford | NY | — | ◇ UNVERIFIED |
| TSThomas Swan Opelika, INC. | Opelika | AL | — | ◇ UNVERIFIED |
| TCThree Creek Bioenergy | Sheffield | OH | — | ◇ UNVERIFIED |
| TPTicona Polymers, INC. | Bishop | TX | — | ◇ UNVERIFIED |
| TITikkurila INC | Philadelphia | PA | — | ◇ UNVERIFIED |
| TCTotal Clean Pasadena Tank Wash | Pasadena | TX | — | ◇ UNVERIFIED |
| TFToxguard Fluid Technologies INC | Stanton | CA | — | ◇ UNVERIFIED |
| TZTrace Zero INC | Auburn Hills | MI | — | ◇ UNVERIFIED |
| TCTreffert Coatings US INC | Charlotte | NC | — | ◇ UNVERIFIED |
| TBTrench Burner Bartb-1 | Terrell | TX | — | ◇ UNVERIFIED |
| TCTwentyfirst Century Biochemic | Marlborough | MA | — | ◇ UNVERIFIED |
| TBTwist Bioscience | Wilsonville | OR | — | ◇ UNVERIFIED |
| UAUmicore Autocat USA INC | Catoosa | OK | — | ◇ UNVERIFIED |
| UCUmicore Cobalt & Energy Products | Maxton | NC | — | ◇ UNVERIFIED |
| UPUmicore Precious Metals Chemistry (pmc) USA LLC | Catoosa | OK | — | ◇ UNVERIFIED |
| USUmicore Specialty Chemicals - Arab Facility | Arab | AL | — | ◇ UNVERIFIED |
| UMUmi Metalfab | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| UNUnc Naval Products | Norwich | CT | — | ◇ UNVERIFIED |
| UCUnion Carbide CORP Tucker Latex Plant | Tucker | GA | — | ◇ UNVERIFIED |
| UIUnited Initiators | Newark | NJ | — | ◇ UNVERIFIED |
| UIUnited Initiators | Theodore | AL | — | ◇ UNVERIFIED |
| UOUnited Organics CORP | Williamston | NC | — | ◇ UNVERIFIED |
| UBUniversal Bioenergy of North America INC | Nettleton | MS | — | ◇ UNVERIFIED |
| UOUniversity of Portland | Portland | OR | — | ◇ UNVERIFIED |
| UUUrenco USA | Eunice | NM | — | ◇ UNVERIFIED |
| UEUSA Environment | Pasadena | TX | — | ◇ UNVERIFIED |
| UDUsalco/ Delta Chemical CORP | Ashtabula | OH | — | ◇ UNVERIFIED |
| UMUsalco Michigan City Plant, LLC | Michigan City | IN | — | ◇ UNVERIFIED |
| URUSA Resources Technology LLC | Elizabeth | NJ | — | ◇ UNVERIFIED |
| UBUS Biofuels INC. | Rome | GA | — | ◇ UNVERIFIED |
| UEUS Epa Marion Ohio Mercury Spill | Marion | OH | — | ◇ UNVERIFIED |
| UTUS Technology Recycling CORP | Canton | OH | — | ◇ UNVERIFIED |
| UTUS Titanium | Piney River | VA | — | ◇ UNVERIFIED |
| USUtica Silicates Plt | Utica | IL | — | ◇ UNVERIFIED |
| UDUti / Diversey Distribution Center | Sturtevant | WI | — | ◇ UNVERIFIED |
| VHVanson Halosource INC 2870 Ocean Ave | Raymond | WA | — | ◇ UNVERIFIED |
| VSVantage Specialty Ingredients INC | Englewood | OH | — | ◇ UNVERIFIED |
| VIVarn International, INC. | Houston | TX | — | ◇ UNVERIFIED |
| VCVelsicol Chemical Corporation (semi-work | Chattanooga | TN | — | ◇ UNVERIFIED |
| VAVeltek Associates INC | Exton | PA | — | ◇ UNVERIFIED |
| VAVentana Applied Sciences New Braunfels Site | New Braunfels | TX | — | ◇ UNVERIFIED |
| VLVenus Labs INC | Opa Locka | FL | — | ◇ UNVERIFIED |
| VHVertellus Health & Specialty Products LLC | Delaware Water Gap | PA | — | ◇ UNVERIFIED |
| VVertex | Camanche | IA | — | ◇ UNVERIFIED |
| VMVibrantz Minerals | Houston | TX | — | ◇ UNVERIFIED |
| VIVigon International LLC | East Stroudsburg | PA | — | ◇ UNVERIFIED |
| VPViking Products | Waverly | NY | — | ◇ UNVERIFIED |
| VBVirdia B2x LLC - Raceland Plant | Raceland | LA | — | ◇ UNVERIFIED |
| VIVirdia INC | Danville | VA | — | ◇ UNVERIFIED |
| VPVisual Pak C/o Clorox | Waukegan | IL | — | ◇ UNVERIFIED |
| VCVitex CORP | Cleveland | OH | — | ◇ UNVERIFIED |
| VTVopak Terminal Deer Park | Deer Park | TX | — | ◇ UNVERIFIED |
| VMVorbeck Materials CORP. | Jessup | MD | — | ◇ UNVERIFIED |
| VRVp Racing Fuels Fulfillment Center | Huntingdon | TN | — | ◇ UNVERIFIED |
| WTWeavertown Transport Leasing INC | Monaca | PA | — | ◇ UNVERIFIED |
| WCWepak Corporation | Charlotte | NC | — | ◇ UNVERIFIED |
| WGWerner G Smith INC | Cleveland | OH | — | ◇ UNVERIFIED |
| WCWesmar Company Site | Seattle | WA | — | ◇ UNVERIFIED |
| WTWesthollow Technology Center | Houston | TX | — | ◇ UNVERIFIED |
| WCWilana Chemical, LLC | Columbus | GA | — | ◇ UNVERIFIED |
| WCWilkins CO INC the | Cortland | NY | — | ◇ UNVERIFIED |
| WRWolf River Plant | Memphis | TN | — | ◇ UNVERIFIED |
| WCWonder Chemical CORP | Fairless Hills | PA | — | ◇ UNVERIFIED |
| WCWood Care Systems | Kirkland | WA | — | ◇ UNVERIFIED |
| WLWorld Laboratories, LTD | Sun Valley | CA | — | ◇ UNVERIFIED |
| WGW.r. Grace & CO. - Conn. Grace Construction Products | Augusta | GA | — | ◇ UNVERIFIED |
| WTWymore Transfer Company | Clackamas | OR | — | ◇ UNVERIFIED |
| XIXena International INC | Polo | IL | — | ◇ UNVERIFIED |
| YNYara North America, INC. Dba Greeneville Cn Facility | Midway | TN | — | ◇ UNVERIFIED |
| YLYound Living Lavendar Farms | Saint Maries | ID | — | ◇ UNVERIFIED |
| 9S910PC Safe Foods | Kieler | WI | 20–99 | ◐ LIKELY ACTIVE |
| 9S910SF Safe Foods | North Little Rock | AR | 100–499 | ◐ LIKELY ACTIVE |
| ALAcme Location | Riegelwood | NC | 20–99 | ◐ LIKELY ACTIVE |
| AMAdvanced Materials and Catalysts LLC R&D | Conshohocken | PA | 20–99 | ◐ LIKELY ACTIVE |
| ASAdvanced Specialty Gases, LLC | Reno | NV | — | ◐ LIKELY ACTIVE |
| ASAdvancion - Sterlington, LA | Sterlington | LA | 100–499 | ◐ LIKELY ACTIVE |
| AHAdvanSix - Hopewell Plant | Hopewell | VA | 500+ | ◐ LIKELY ACTIVE |
