| OMG INC | Steel Partners Holdings | Cobalt | 911.73 |
| ONYX SPECIALTY PAPERS INC. - WILLOW MILL | ONYX SPECIALTY PAPERS | Formaldehyde | 53.81 |
| PRATT & WHITNEY | RTX Corporation | Cobalt | 43.66 |
| KAMATICS CORP | Arcline Investment Management | Chromium | 31.76 |
| WESTFIELD ELECTROPLATING CO | WESTFIELD ELECTROPLATING CO | Nitric acid | 23.37 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Chromium | 19.65 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Chromium | 19.01 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Chromium | 16.47 |
| BEACON INDUSTRIES INC | BEACON INDUSTRIES INC | Chromium | 14.44 |
| PRATT & WHITNEY | RTX Corporation | Chromium | 14.08 |
| OTIS SERVICE CENTER | Otis Worldwide Corporation | Chromium | 9.85 |
| SOLUTIA INC | Eastman Chemical | Formaldehyde | 8.59 |
| BI-QEM INC. | BI-QEM INC | Formaldehyde | 6.67 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Chromium | 6.30 |
| PREFERE MELAMINES LLC | One Rock Capital Partners | Formaldehyde | 6.28 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Chromium | 4.80 |
| FUELCELL ENERGY | FuelCell Energy | Chromium | 3.86 |
| HYDROFERA LLC | Essity | Formaldehyde | 3.29 |
| ARCLIN SURFACES - EAST LONGMEADOW CO. | The Jordan Company | Formaldehyde | 2.07 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Nickel | 2.02 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Nickel | 1.96 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Antimony compounds | 1.92 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Cobalt | 1.78 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Nickel | 1.70 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Lead compounds | 1.68 |
| BEACON INDUSTRIES INC | BEACON INDUSTRIES INC | Nickel | 1.49 |
| PRATT & WHITNEY | RTX Corporation | Nickel | 1.45 |
| SOLENIS LLC | Platinum Equity | Epichlorohydrin | 1.04 |
| KAMATICS CORP | Arcline Investment Management | Nickel | 0.91 |
| HAZEN PAPER CO | HAZEN PAPER CO | Certain glycol ethers | 0.82 |
| RPM WOOD FINISHES GROUP INC. | RPM International | Certain glycol ethers | 0.60 |
| FUELCELL ENERGY | FuelCell Energy | Nickel | 0.58 |
| CARDINAL HEALTH / KPR | Cardinal Health | Acrylic acid | 0.48 |
| RBC AIRCRAFT PRODUCTS INC | RBC Bearings Inc. | Chromium | 0.44 |
| DYNO NOBEL INC | Incitec Pivot | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 0.27 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Nickel | 0.22 |
| MINTEQ/SPECIALTY MINERALS | Minerals Technologies Inc. | Chromium | 0.21 |
| CALLAWAY GOLF BALL OPERATIONS INC | Callaway Golf | Diisocyanates | 0.20 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | Ethylbenzene | 0.19 |
| DONCASTERS STORMS FORGE | Doncasters | Chromium | 0.17 |
| CONNECTICUT GALVANIZING CORP | CONNECTICUT GALVANIZING CORP | Lead | 0.14 |
| BARNES AEROSPACE WINDSOR DIV | Barnes Group | Nickel | 0.14 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Nickel | 0.11 |
| MINTEQ/SPECIALTY MINERALS | Minerals Technologies Inc. | Manganese | 0.09 |
| COLT'S MANUFACTURING CO LLC | Colt CZ Group | Lead compounds | 0.05 |
| SCAPA NA LLC | Schweitzer-Mauduit International | Ethylbenzene | 0.05 |
| PALMER FOUNDRY INC | PALMER FOUNDRY INC | Diisocyanates | 0.05 |
| HAZEN PAPER CO | HAZEN PAPER CO | n-Butyl alcohol (1-Butanol) | 0.05 |
| DONCASTERS STORMS FORGE | Doncasters | Nickel | 0.04 |
| OMG INC | Steel Partners Holdings | Lead | 0.04 |
| MINTEQ/SPECIALTY MINERALS | Minerals Technologies Inc. | Nickel | 0.04 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Ozone | 0.04 |
| O'CONNELL OIL NORTHAMPTON FACILITY | O'CONNELL OIL ASSOCIATES INC | Benzene | 0.03 |
| CONNECTICUT GALVANIZING CORP | CONNECTICUT GALVANIZING CORP | Zinc compounds | 0.03 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | Xylene (mixed isomers) | 0.03 |
| MINTEQ/SPECIALTY MINERALS | Minerals Technologies Inc. | Lead compounds | 0.02 |
| TURF CARE SUPPLY-HATFIELD PLANT | Platte River Equity | Manganese compounds | 0.02 |
| AHLSTROM-MUNKSJO NONWOVENS LLC | Bain Capital | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 0.02 |
| TRELLEBORG COATED SYSTEMS US INC. | Trelleborg | N,N-Dimethylformamide | 0.02 |
| TAYLOR & FENN CO | TAYLOR & FENN CO | Lead | 0.01 |
| SOLUTIA INC | Eastman Chemical | Vinyl acetate | 0.01 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Trichloroethylene | 0.01 |
| HAR-CONN CHROME CO | HAR-CONN CHROME CO | Nitric acid | 0.01 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Formaldehyde | 0.01 |
| SCAPA NA LLC | Schweitzer-Mauduit International | Xylene (mixed isomers) | 0.01 |
| DYNO NOBEL INC | Incitec Pivot | Lead compounds | 0.01 |
| KAMATICS CORP | Arcline Investment Management | Copper | 0.01 |
| KAMATICS CORP | Arcline Investment Management | Nitric acid | 0.01 |
| TRIUMPH ENGINE CONTROL SYSTEMS LLC | Triumph Group | Lead compounds | 0.01 |
| RANDOLPH PRODUCTS CO | RANDOLPH PRODUCTS CO | Xylene (mixed isomers) | 0.01 |
| SMITH & WESSON INC. | Smith & Wesson | Lead compounds | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Dichloromethane (Methylene chloride) | 0.00 |
| WESTFIELD ELECTROPLATING CO | WESTFIELD ELECTROPLATING CO | Cyanide compounds | 0.00 |
| PREFERE MELAMINES LLC | One Rock Capital Partners | n-Butyl alcohol (1-Butanol) | 0.00 |
| PRATT & WHITNEY | RTX Corporation | Nitric acid | 0.00 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Zinc compounds | 0.00 |
| SIMONIZ USA INC. | Syndet Products | Certain glycol ethers | 0.00 |
| RATHBONE PRECISION METALS INC | Calvi Holding | Nitric acid | 0.00 |
| OLDCASTLE PRECAST INC | CRH PLC | Lead compounds | 0.00 |
| RPM WOOD FINISHES GROUP INC. | RPM International | Methyl isobutyl ketone | 0.00 |
| O'CONNELL OIL NORTHAMPTON FACILITY | O'CONNELL OIL ASSOCIATES INC | Hydrogen sulfide | 0.00 |
| TILCON CONNECTICUT INC | CRH PLC | Polycyclic aromatic compounds | 0.00 |
| ELEMENT MATERIALS TECHNOLOGY HARTFORD INC. | Temasek Holdings | Nitric acid | 0.00 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | Toluene | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Ethylbenzene | 0.00 |
| SCAPA NA LLC | Schweitzer-Mauduit International | Toluene | 0.00 |
| TURF CARE SUPPLY-HATFIELD PLANT | Platte River Equity | Lead compounds | 0.00 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Certain glycol ethers | 0.00 |
| DUR-A-FLEX | Sherwin-Williams | Methyl methacrylate | 0.00 |
| DYNO NOBEL INC | Incitec Pivot | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | n-Hexane (Hexane) | 0.00 |
| OMG INC | Steel Partners Holdings | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 0.00 |
| ALGONQUIN POWER WINDSOR LOCKS LLC | Algonquin Power & Utilities | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 0.00 |
| SONOCO PRODUCTS CO | Sonoco Products | Lead | 0.00 |
| ALTEK ELECTRONICS INC | ALTEK ELECTRONICS INC | Lead | 0.00 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.00 |
| TURF CARE SUPPLY-HATFIELD PLANT | Platte River Equity | 2,4-D | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | N,N-Dimethylformamide | 0.00 |
| SHURTAPE TECHNOLOGIES LLC | SHURTAPE TECHNOLOGIES LLC | n-Hexane (Hexane) | 0.00 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Lead compounds | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Tetrachloroethylene | 0.00 |
| SHURTAPE TECHNOLOGIES LLC | SHURTAPE TECHNOLOGIES LLC | Toluene | 0.00 |
| CONSTRUCTION SERVICE LLC | CS-MA LLC | Lead | 0.00 |
| NUTMEG CHROME CORP | NUTMEG CHROME CORP | Lead compounds | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Certain glycol ethers | 0.00 |
| MUSTANG MOTORCYCLE PRODUCTS LLC | MAG INC | Styrene | 0.00 |
| SOLENIS LLC | Platinum Equity | Formic acid | 0.00 |
| O'CONNELL OIL NORTHAMPTON FACILITY | O'CONNELL OIL ASSOCIATES INC | Polycyclic aromatic compounds | 0.00 |
| ITW SHINEMARK | Illinois Tool Works | Toluene | 0.00 |
| SOLUTIA INC | Eastman Chemical | Methanol | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Xylene (mixed isomers) | 0.00 |
| CS-MA LLC DBA CONSTRUCTION SERVICE | CS-MA LLC | Lead | 0.00 |
| PREFERE MELAMINES LLC | One Rock Capital Partners | Methanol | 0.00 |
| ADVANCED ADHESIVE SYSTEMS INC | ADVANCED ADHESIVE SYSTEMS INC | Methyl methacrylate | 0.00 |
| MINTEQ/SPECIALTY MINERALS | Minerals Technologies Inc. | Copper | 0.00 |
| SMITH & WESSON INC. | Smith & Wesson | Nitric acid | 0.00 |
| ORAFOL AMERICAS INC | ORAFOL INTERNATIONAL | Toluene | 0.00 |
| SMITH & WESSON INC. | Smith & Wesson | Copper | 0.00 |
| SYN-MAR PRODUCTS INC. | SYN-MAR PRODUCTS INC. | Styrene | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Diethanolamine | 0.00 |
| TRELLEBORG COATED SYSTEMS US INC. | Trelleborg | Toluene | 0.00 |
| CS-MA LLC DBA CONSTRUCTION SERVICE | CS-MA LLC | Lead | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Ethylene glycol | 0.00 |
| RANDOLPH PRODUCTS CO | RANDOLPH PRODUCTS CO | Toluene | 0.00 |
| ENSIGN-BICKFORD AEROSPACE & DEFENSE CO | ENSIGN-BICKFORD INDUSTRIES INC | Lead compounds | 0.00 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Nitric acid | 0.00 |
| E INK CORP | E INK CORP | Toluene | 0.00 |
| THE SOUSA CORP | SOUSA CORP | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 0.00 |
| ONYX SPECIALTY PAPERS INC. - WILLOW MILL | ONYX SPECIALTY PAPERS | Formic acid | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Toluene | 0.00 |
| JAMES AUSTIN CO | Centerbridge Partners | Methanol | 0.00 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Lead | 0.00 |
| APG NEW ENGLAND | CRH PLC | Lead compounds | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | n-Butyl alcohol (1-Butanol) | 0.00 |
| FUELCELL ENERGY | FuelCell Energy | Cyclohexane | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Formic acid | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Methanol | 0.00 |
| U.S. DOD USAF WESTOVER ARB | U.S. Government | Xylene (mixed isomers) | 0.00 |
| ELECTRIC MOTION CO INC. | Hubbell | Copper | 0.00 |
| TTM PRINTED CIRCUIT GROUP | TTM Technologies | Lead | 0.00 |
| TTM PRINTED CIRCUIT GROUP MULT ILAYER STAFFORD DIV | TTM Technologies | Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.00 |
| APG NEW ENGLAND | CRH PLC | Mercury | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Methyl isobutyl ketone | 0.00 |
| CONSTRUCTION SERVICE LLC | CS-MA LLC | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| ELECTRIC MOTION CO INC. | Hubbell | Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 0.00 |
| CS-MA LLC DBA CONSTRUCTION SERVICE | CS-MA LLC | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| CS-MA LLC DBA CONSTRUCTION SERVICE | CS-MA LLC | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | tert-Butyl alcohol (tert-Butanol) | 0.00 |
| TURF CARE SUPPLY-HATFIELD PLANT | Platte River Equity | N-Methyl-2-pyrrolidone | 0.00 |
| HAZEN PAPER CO | HAZEN PAPER CO | N-Methyl-2-pyrrolidone | 0.00 |
| SAINT GOBAIN CERAMIC MATERIALS | Saint-Gobain | Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | N-Methyl-2-pyrrolidone | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Nonylphenol Ethoxylates | 0.00 |
| SOLUTIA INC | Eastman Chemical | Butyraldehyde | 0.00 |
| FUELCELL ENERGY | FuelCell Energy | Lithium carbonate | 0.00 |