| PECOFACET | Parker-Hannifin | Chromium | 496.35 |
| GARDNER DENVER PMI | Ingersoll Rand | Nickel | 105.36 |
| JOHNS MANVILLE | Berkshire Hathaway | Formaldehyde | 92.93 |
| PECOFACET | Parker-Hannifin | Nickel | 52.29 |
| TRINKOTE INDUSTRAIL FINISHES INC | TRINKOTE INDUSTRIAL FINISHES INC | Chromium compounds | 26.13 |
| WEATHERFORD AEROSPACE LLC | KKR & Co. | Chromium compounds | 9.50 |
| COMMERCIAL METAL FORMING | CE Star Holdings | Chromium | 9.00 |
| ESNA TEXAS | KKR & Co. | Chromium | 6.05 |
| WEATHERFORD AEROSPACE LLC | KKR & Co. | Tetrachloroethylene (Perchloroethylene) | 2.41 |
| SACHEM INC | SACHEM INC | Chlorine | 1.98 |
| POWER SERVICE PRODUCTS INC | POWER SERVICE PRODUCTS INC | Naphthalene | 1.70 |
| HAYES & STOLZ INDUSTRIAL MANUFACTURING CO LLC | HAYES-STOLZ ACQUISITIONS LLC | Chromium | 1.20 |
| HARBISON-FISCHER MFG | HARBISON-FISCHER MFG | Chromium | 1.19 |
| NOURYON SURFACE CHEMISTRY LLC | Carlyle Group | Formaldehyde | 0.87 |
| SUPREME SOUTHWEST | Wabash National | Chromium | 0.72 |
| INGRAM CONCRETE - WILLOW PARK | U.S. Concrete Inc. | Lead | 0.70 |
| C-KOE METALS LP | C-KOE METALS LP | Aluminum (fume or dust) | 0.66 |
| POWER SERVICE PRODUCTS INC | POWER SERVICE PRODUCTS INC | Ethylbenzene | 0.60 |
| OIL STATES INDUSTRIES INC | Oil States International | Nickel | 0.58 |
| COMMERCIAL METAL FORMING | CE Star Holdings | Nickel | 0.49 |
| SACHEM INC | SACHEM INC | Formaldehyde | 0.34 |
| BELL PLANT 1 | Textron | Chromium | 0.33 |
| BALL METAL BEVERAGE CONTAINER CORP | Ball Corp. | Glycol ethers | 0.32 |
| PECOFACET | Parker-Hannifin | Manganese | 0.29 |
| OWEN OIL TOOLS LP | CORE LABORATORIES LP | Lead | 0.26 |
| ESNA TEXAS | KKR & Co. | Nickel | 0.25 |
| DPC INDUSTRIES INC | DX Holding Co. | Chlorine | 0.23 |
| MODERN FORGE TEXAS LLC | MODERN FORGE COS LLC | Chromium | 0.22 |
| STRUCTURAL & STEEL PRODUCTS MANUFACTURING LTD | SSPI HOLDINGS INC | Manganese | 0.16 |
| GARDNER DENVER VALVE & SEAT | Ingersoll Rand | Nickel | 0.14 |
| MODERN FORGE TEXAS LLC | MODERN FORGE COS LLC | Nickel | 0.13 |
| JOHNS MANVILLE | Berkshire Hathaway | Ammonia | 0.11 |
| POWER SERVICE VIGORTONE MANUFACTURING & TANK FAR | POWER SERVICE PRODUCTS INC | Ethylbenzene | 0.11 |
| TRINITY TANK CAR INC PLT 192 | Trinity Industries | Manganese compounds | 0.11 |
| SOUTHWIRE CO-MINERAL WELLS PLANT | Southwire | Antimony compounds | 0.09 |
| MICA STEELWORKS-HALTOM CITY | MICA STEELWORKS INC | Manganese | 0.08 |
| POWER SERVICE PRODUCTS INC | POWER SERVICE PRODUCTS INC | Glycol ethers | 0.08 |
| HAYES & STOLZ INDUSTRIAL MANUFACTURING CO LLC | HAYES-STOLZ ACQUISITIONS LLC | Nickel | 0.07 |
| NOURYON SURFACE CHEMISTRY LLC | Carlyle Group | Naphthalene | 0.07 |
| WEATHERFORD AEROSPACE LLC | KKR & Co. | Tetrachloroethylene (Perchloroethylene) | 0.06 |
| HARBISON-FISCHER MFG | HARBISON-FISCHER MFG | Nickel | 0.06 |
| LEGGETT & PLATT INC | Leggett & Platt | Diisocyanates | 0.05 |
| SUPREME SOUTHWEST | Wabash National | Nickel | 0.05 |
| CREST FOAM CORP | Leggett & Platt | Diisocyanates | 0.04 |
| WABTEC MANUFACTURING SOLUTIONS LLC | Westinghouse Air Brake Technologies (Wabtec) | Manganese | 0.03 |
| ITW REFRIGERATION NA | Illinois Tool Works | Chromium | 0.03 |
| ITW REFRIGERATION NA | Illinois Tool Works | Nickel | 0.03 |
| ACME BRICK CO-BENNETT PLANT | Berkshire Hathaway | Lead | 0.03 |
| WEATHERFORD AEROSPACE LLC | KKR & Co. | Hydrogen fluoride | 0.02 |
| MIDLAND MANUFACTURING CO | Midland Manufacturing Co. | Lead compounds | 0.02 |
| WABTEC MANUFACTURING SOLUTIONS LLC | Westinghouse Air Brake Technologies (Wabtec) | Nickel | 0.02 |
| SACHEM INC | SACHEM INC | Chloromethane | 0.02 |
| ACME BRICK CO-BENNETT PLANT | Berkshire Hathaway | Hydrogen fluoride | 0.02 |
| BALL METAL BEVERAGE CONTAINER CORP | Ball Corp. | n-Butyl alcohol | 0.01 |
| ITW REFRIGERATION NA | Illinois Tool Works | Cobalt | 0.01 |
| KPS GLOBAL | D CUBED GROUP | Diisocyanates | 0.01 |
| COMMERCIAL METAL FORMING | CE Star Holdings | Manganese | 0.01 |
| NORTHWEST PIPE CO | Northwest Pipe Co. | Manganese | 0.01 |
| TECHNICAL CHEMICAL CO | TECHNICAL CHEMICAL CO | Tetrachloroethylene (Perchloroethylene) | 0.01 |
| ITW REFRIGERATION NA | Illinois Tool Works | Diisocyanates | 0.01 |
| TRINKOTE INDUSTRAIL FINISHES INC | TRINKOTE INDUSTRIAL FINISHES INC | Glycol ethers | 0.01 |
| SPM FLOW CONTROL INC D/B/A WEIR SPM | Caterpillar Inc. | Chromium | 0.01 |
| POWER SERVICE PRODUCTS INC | POWER SERVICE PRODUCTS INC | 1,2,4-Trimethylbenzene | 0.01 |
| POWER SERVICE PRODUCTS INC | POWER SERVICE PRODUCTS INC | Xylene (mixed isomers) | 0.01 |
| HAYES & STOLZ INDUSTRIAL MANUFACTURING CO LLC | HAYES-STOLZ ACQUISITIONS LLC | Manganese | 0.01 |
| EFW INC | EFW INC | Lead | 0.01 |
| SPM FLOW CONTROL INC D/B/A WEIR SPM | Caterpillar Inc. | Nickel | 0.01 |
| MARTIN ENTERPRISES | MARTIN ENTERPRISES | Styrene | 0.01 |
| AZZ GALVANIZING SERVICES-CROWLEY | AZZ Inc. | Zinc compounds | 0.00 |
| GARDNER DENVER PMI | Ingersoll Rand | Propylene (Propene) | 0.00 |
| TRINITY INDUSTRIES INC PLT 1016 | Trinity Industries | Manganese | 0.00 |
| BRAZOS ELECTRIC JOHNSON COUNTY GENERATION FACILITY | BRAZOS ELECTRIC POWER COOPERATIVE INC | Ammonia | 0.00 |
| WEATHERFORD AEROSPACE LLC | KKR & Co. | Nitric acid | 0.00 |
| MARTIN ENTERPRISES | MARTIN ENTERPRISES | Styrene | 0.00 |
| MERIDIAN BRICK - MINERAL WELLS WEST PLANT | Wienerberger AG | Hydrochloric acid | 0.00 |
| REDI-MIX - FORT WORTH | U.S. Concrete Inc. | Lead | 0.00 |
| POLYMER ADHESIVE SEALANT SYSTEMS INC | POLYMER ADHESIVE SEALANT SYSTEMS INC | n-Hexane | 0.00 |
| MODERN FORGE TEXAS LLC | MODERN FORGE COS LLC | Manganese | 0.00 |
| REDI-MIX - KENNEDALE | U.S. Concrete Inc. | Lead | 0.00 |
| MIDLAND MANUFACTURING CO | Midland Manufacturing Co. | Copper | 0.00 |
| BALL METAL BEVERAGE CONTAINER CORP | Ball Corp. | Hydrogen fluoride | 0.00 |
| WR MEADOWS OF TEXAS | WR MEADOWS INC | Glycol ethers | 0.00 |
| TRINKOTE INDUSTRAIL FINISHES INC | TRINKOTE INDUSTRIAL FINISHES INC | Xylene (mixed isomers) | 0.00 |
| TECHNICAL CHEMICAL CO | TECHNICAL CHEMICAL CO | Glycol ethers | 0.00 |
| TRINITY INDUSTRIES INC PLT 1016 | Trinity Industries | Zinc compounds | 0.00 |
| SUPREME SOUTHWEST | Wabash National | Manganese | 0.00 |
| INGRAM CONCRETE - GRANBURY 1 | U.S. Concrete Inc. | Lead | 0.00 |
| ESNA TEXAS | KKR & Co. | Copper | 0.00 |
| SACHEM INC | SACHEM INC | Triethylamine | 0.00 |
| ATCO RUBBER PRODUCTS INC | Mueller Industries | Antimony compounds | 0.00 |
| POWER SERVICE VIGORTONE MANUFACTURING & TANK FAR | POWER SERVICE PRODUCTS INC | Xylene (mixed isomers) | 0.00 |
| AZZ GALVANIZING - KENNEDALE | AZZ Inc. | Zinc compounds | 0.00 |
| REDI-MIX - HALTOM CITY | U.S. Concrete Inc. | Lead | 0.00 |
| BUCKLEY OIL CO | BUCKLEY OIL CO | Xylene (mixed isomers) | 0.00 |
| OIL STATES INDUSTRIES INC | Oil States International | Zinc compounds | 0.00 |
| ASSOCIATED FIBERGLASS ENTERPRISES | SHUMARD CORP | Styrene | 0.00 |
| MERIDIAN BRICK - MINERAL WELLS WEST PLANT | Wienerberger AG | Hydrogen fluoride | 0.00 |
| SACHEM INC | SACHEM INC | Acetonitrile | 0.00 |
| VALTRIS SPECIALTY CHEMICALS | H.I.G. Capital | Zinc compounds | 0.00 |
| WR MEADOWS OF TEXAS | WR MEADOWS INC | 1,2,4-Trimethylbenzene | 0.00 |
| NORTH AMERICAN GALVANIZING CO HURST | AZZ Inc. | Zinc compounds | 0.00 |
| OIL STATES INDUSTRIES INC | Oil States International | Copper | 0.00 |
| US NAVY NAVAL AIR STATION JOINT RESERVE BASE FORT WORTH | U.S. Government | Naphthalene | 0.00 |
| BUCKLEY OIL CO | BUCKLEY OIL CO | n-Hexane | 0.00 |
| STANDARD PAINTS INC | STANDARD PAINTS INC | Xylene (mixed isomers) | 0.00 |
| TRINKOTE INDUSTRAIL FINISHES INC | TRINKOTE INDUSTRIAL FINISHES INC | Triethylamine | 0.00 |
| JOHNS MANVILLE | Berkshire Hathaway | Lead compounds | 0.00 |
| ROYAL BATHS MANUFACTURING CO | ROYAL BATHS MANUFACTURING CO LTD | Styrene | 0.00 |
| POLYMER ADHESIVE SEALANT SYSTEMS INC | POLYMER ADHESIVE SEALANT SYSTEMS INC | Ammonia | 0.00 |
| VALTRIS SPECIALTY CHEMICALS | H.I.G. Capital | Ammonia | 0.00 |
| COMMERCIAL METAL FORMING | CE Star Holdings | Copper | 0.00 |
| POWER SERVICE PRODUCTS INC | POWER SERVICE PRODUCTS INC | Vinyl acetate | 0.00 |
| POWER SERVICE VIGORTONE MANUFACTURING & TANK FAR | POWER SERVICE PRODUCTS INC | Benzene | 0.00 |
| POWER SERVICE VIGORTONE MANUFACTURING & TANK FAR | POWER SERVICE PRODUCTS INC | Naphthalene | 0.00 |
| COASTAL CHEMICAL CO LLC | Brenntag | Diethanolamine | 0.00 |
| BUCKLEY OIL CO | BUCKLEY OIL CO | Glycol ethers | 0.00 |
| PDK LIQUID STONE PARTNERS LP | PDK LIQUID STONE PARTNERS LP | Lead compounds | 0.00 |
| SOUTHWIRE CO-MINERAL WELLS PLANT | Southwire | Copper | 0.00 |
| US NAVY NAVAL AIR STATION JOINT RESERVE BASE FORT WORTH | U.S. Government | Ethylbenzene | 0.00 |
| AMERICAN MAATCO CBP | AMERICAN MAATCO CBP | Lead | 0.00 |
| POWER SERVICE PRODUCTS INC | POWER SERVICE PRODUCTS INC | n-Butyl alcohol | 0.00 |
| POWER SERVICE PRODUCTS INC | POWER SERVICE PRODUCTS INC | Cumene | 0.00 |
| SUNOCO EULESS TX TERMINAL | Energy Transfer | Benzene | 0.00 |
| TECHNICAL CHEMICAL CO | TECHNICAL CHEMICAL CO | Xylene (mixed isomers) | 0.00 |
| ATCO RUBBER PRODUCTS INC | Mueller Industries | Lead compounds | 0.00 |
| CHARLEYS CONCRETE | CHARLEYS CONCRETE CO LTD | Lead | 0.00 |
| MODERN WELDING CO OF TX INC | MODERN WELDING CO INC | Styrene | 0.00 |
| TXI-LINKCREST READY MIX | Martin Marietta Materials | Lead compounds | 0.00 |
| JAMES HARDIE BUILDING PRODUCTS CLEBURNE | James Hardie Building Products | Lead compounds | 0.00 |
| DELEK RENEWABLES LLC | Delek | Methanol | 0.00 |
| READY SEAL INC | READY SEAL INC | Glycol ethers | 0.00 |
| AZZ GALVANIZING - KENNEDALE | AZZ Inc. | Lead | 0.00 |
| PARKER HANNIFIN CORP - PARFLEX DIV | Parker-Hannifin | Ammonia | 0.00 |
| TRINKOTE INDUSTRAIL FINISHES INC | TRINKOTE INDUSTRIAL FINISHES INC | 1,2,4-Trimethylbenzene | 0.00 |
| AZZ GALVANIZING SERVICES-CROWLEY | AZZ Inc. | Lead | 0.00 |
| HURST BAGGING FACILITY | CRH PLC | Lead | 0.00 |
| F&F COMPOSITE GROUP INC | F&F COMPOSITE GROUP INC | Styrene | 0.00 |
| HILLSHIRE BRANDS CO | Tyson Foods | Ammonia | 0.00 |
| TXI-LAWNWOOD READY MIX | Martin Marietta Materials | Lead compounds | 0.00 |
| CHARLEY''S CONCRETE CO (KELLER) | CHARLEYS CONCRETE CO LTD | Lead | 0.00 |
| POWER SERVICE VIGORTONE MANUFACTURING & TANK FAR | POWER SERVICE PRODUCTS INC | 1,2,4-Trimethylbenzene | 0.00 |
| CHARLEYS CONCRETE CO LTD | CHARLEYS CONCRETE CO LTD | Lead | 0.00 |
| BUCKLEY OIL CO | BUCKLEY OIL CO | Toluene | 0.00 |
| TXI-ROANOKE READY MIX | Martin Marietta Materials | Lead compounds | 0.00 |
| POLYMER ADHESIVE SEALANT SYSTEMS INC | POLYMER ADHESIVE SEALANT SYSTEMS INC | Toluene | 0.00 |
| COASTAL CHEMICAL CO LLC | Brenntag | Methanol | 0.00 |
| ROYAL ADHESIVES & SEALANTS LLC | H.B. Fuller | n-Hexane | 0.00 |
| CLEBURNE READY MIX | Martin Marietta Materials | Lead compounds | 0.00 |
| LATTIMORE MATERIALS CORP-BLUE MOUND RM | LafargeHolcim | Lead compounds | 0.00 |
| POLYMER ADHESIVE SEALANT SYSTEMS INC | POLYMER ADHESIVE SEALANT SYSTEMS INC | Methanol | 0.00 |
| ITW REFRIGERATION NA | Illinois Tool Works | Manganese | 0.00 |
| KELLY-MOORE PAINT CO INC | Kelly-Moore Paint Company | Zinc compounds | 0.00 |
| FARRIS SAGINAW PLANT | Argos | Lead | 0.00 |
| A-GAS US INC | A-GAS US HOLDINGS INC | Chlorodifluoromethane (HCFC-22) | 0.00 |
| TECHNICAL CHEMICAL CO | TECHNICAL CHEMICAL CO | Toluene | 0.00 |
| READY SEAL INC | READY SEAL INC | Xylene (mixed isomers) | 0.00 |
| TRINKOTE INDUSTRAIL FINISHES INC | TRINKOTE INDUSTRIAL FINISHES INC | Sodium nitrite | 0.00 |
| AZZ GALVANIZING SERVICES-CROWLEY | AZZ Inc. | Barium compounds | 0.00 |
| POWER SERVICE VIGORTONE MANUFACTURING & TANK FAR | POWER SERVICE PRODUCTS INC | Cumene | 0.00 |
| TRINKOTE INDUSTRAIL FINISHES INC | TRINKOTE INDUSTRIAL FINISHES INC | n-Butyl alcohol | 0.00 |
| PROJECT 101 PORTABLE PLANT | Argos | Lead | 0.00 |
| TXI-HEMPHILL READY MIX | Martin Marietta Materials | Lead compounds | 0.00 |
| HURST PLANT | Argos | Lead | 0.00 |
| SOUTHSIDE PLANT | Argos | Lead | 0.00 |
| ALLIANCE PLANT | Argos | Lead | 0.00 |
| ADVANCED CHEMICAL LOGISITCS | ADVANCED CHEMICAL LOGISTICS | Glycol ethers | 0.00 |
| BUCKLEY OIL CO | BUCKLEY OIL CO | Methanol | 0.00 |
| ITW REFRIGERATION NA | Illinois Tool Works | Copper | 0.00 |
| FORT WORTH PLANT | Argos | Lead | 0.00 |
| SUNOCO EULESS TX TERMINAL | Energy Transfer | Ethylbenzene | 0.00 |
| COASTAL CHEMICAL CO LLC | Brenntag | Ethylene glycol | 0.00 |
| MUSKET FT WORTH BULK PLANT | Love's Travel Stops & Country Stores | Naphthalene | 0.00 |
| TECHNICAL CHEMICAL CO | TECHNICAL CHEMICAL CO | Methanol | 0.00 |
| STANDARD PAINTS INC | STANDARD PAINTS INC | Toluene | 0.00 |
| NORTH AMERICAN GALVANIZING CO HURST | AZZ Inc. | Lead | 0.00 |
| THE DANNON CO INC | Danone | Nitric acid | 0.00 |
| MICA STEELWORKS-HALTOM CITY | MICA STEELWORKS INC | Propylene (Propene) | 0.00 |
| NALCO COMPANY-NEW FAIRVIEW | Ecolab | Methanol | 0.00 |
| REDI-MIX - FORT WORTH | U.S. Concrete Inc. | Mercury | 0.00 |
| POWER SERVICE VIGORTONE MANUFACTURING & TANK FAR | POWER SERVICE PRODUCTS INC | Toluene | 0.00 |
| MULTI-CHEM GROUP NEW FAIRVIEW TX FACILITY | Halliburton | Methanol | 0.00 |
| POWER SERVICE PRODUCTS INC | POWER SERVICE PRODUCTS INC | sec-Butyl alcohol | 0.00 |
| SPM FLOW CONTROL INC D/B/A WEIR SPM | Caterpillar Inc. | Copper | 0.00 |
| BUCKLEY OIL CO | BUCKLEY OIL CO | Ethylene glycol | 0.00 |
| TRI-CHEM SPECIALTY LLC | TRI-CHEM SPECIALTY LLC | Sulfuric acid | 0.00 |
| BUCKLEY OIL CO | BUCKLEY OIL CO | n-Butyl alcohol | 0.00 |
| SACHEM INC | SACHEM INC | Chloroethane (Ethyl chloride) | 0.00 |
| TRINKOTE INDUSTRAIL FINISHES INC | TRINKOTE INDUSTRIAL FINISHES INC | Methyl isobutyl ketone | 0.00 |
| NOURYON SURFACE CHEMISTRY LLC | Carlyle Group | sec-Butyl alcohol | 0.00 |
| SUNOCO EULESS TX TERMINAL | Energy Transfer | Naphthalene | 0.00 |
| TRINKOTE INDUSTRAIL FINISHES INC | TRINKOTE INDUSTRIAL FINISHES INC | Toluene | 0.00 |
| VIRON INTERNATIONAL CORP | VIRON INTERNATIONAL CORP | Styrene | 0.00 |
| SUNOCO EULESS TX TERMINAL | Energy Transfer | m-Xylene | 0.00 |
| SACHEM INC | SACHEM INC | Methanol | 0.00 |
| SUNOCO EULESS TX TERMINAL | Energy Transfer | 1,2,4-Trimethylbenzene | 0.00 |
| TRINKOTE INDUSTRAIL FINISHES INC | TRINKOTE INDUSTRIAL FINISHES INC | sec-Butyl alcohol | 0.00 |
| SUNOCO EULESS TX TERMINAL | Energy Transfer | n-Hexane | 0.00 |
| TRI-CHEM SPECIALTY LLC | TRI-CHEM SPECIALTY LLC | Glycol ethers | 0.00 |
| SUNOCO EULESS TX TERMINAL | Energy Transfer | Toluene | 0.00 |
| TRI-CHEM SPECIALTY LLC | TRI-CHEM SPECIALTY LLC | Nonylphenol ethoxylates | 0.00 |
| MARTIN ENTERPRISES | MARTIN ENTERPRISES | Dimethyl phthalate | 0.00 |
| MARTIN ENTERPRISES | MARTIN ENTERPRISES | Dimethyl phthalate | 0.00 |
| ADVANCED CHEMICAL LOGISITCS | ADVANCED CHEMICAL LOGISTICS | Nonylphenol | 0.00 |
Political Economy Research Institute
