| OMG INC | Steel Partners Holdings | Cobalt | 400.34 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Chromium | 259.05 |
| SOLUTIA INC | Eastman Chemical | Formaldehyde | 141.37 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Cobalt | 73.20 |
| PREFERE MELAMINES LLC | One Rock Capital Partners | Formaldehyde | 70.29 |
| ARCLIN SURFACES - EAST LONGMEADOW CO. | The Jordan Company | Formaldehyde | 62.27 |
| PRATT & WHITNEY | RTX Corporation | Cobalt | 53.33 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Chromium | 43.14 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Chromium | 42.04 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Chromium | 35.30 |
| KAMATICS CORP | Arcline Investment Management | Chromium | 31.46 |
| PRATT & WHITNEY | RTX Corporation | Chromium | 17.20 |
| HYDROFERA LLC | Essity | Formaldehyde | 6.88 |
| OTIS SERVICE CENTER | Otis Worldwide Corporation | Chromium | 6.54 |
| BEACON INDUSTRIES INC | BEACON INDUSTRIES INC | Chromium | 6.35 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Nickel | 4.44 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Nickel | 4.33 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Nickel | 4.32 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Chromium | 3.86 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Nickel | 3.64 |
| PRATT & WHITNEY | RTX Corporation | Nickel | 1.77 |
| DONCASTERS STORMS FORGE | Doncasters | Chromium | 1.69 |
| BI-QEM INC. | BI-QEM INC | Formaldehyde | 1.60 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Antimony compounds | 1.54 |
| MACE ADHESIVES & COATINGS CO I NC | MACE ADHESIVES & COATINGS CO I NC | 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.) | 1.43 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Lead compounds | 1.35 |
| CARDINAL HEALTH / KPR | Cardinal Health | Acrylic acid | 1.09 |
| KAMATICS CORP | Arcline Investment Management | Nickel | 0.90 |
| SOLENIS LLC | Platinum Equity | Epichlorohydrin | 0.82 |
| BEACON INDUSTRIES INC | BEACON INDUSTRIES INC | Nickel | 0.65 |
| HAZEN PAPER CO | HAZEN PAPER CO | Certain glycol ethers | 0.62 |
| DONCASTERS STORMS FORGE | Doncasters | Nickel | 0.37 |
| BARNES AEROSPACE WINDSOR DIV | Barnes Group | Nickel | 0.32 |
| PALMER FOUNDRY INC | PALMER FOUNDRY INC | Diisocyanates | 0.31 |
| SOLUTIA INC | Eastman Chemical | Vinyl acetate | 0.23 |
| CONNECTICUT GALVANIZING CORP | CONNECTICUT GALVANIZING CORP | Lead | 0.19 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Nickel | 0.17 |
| WHITCRAFT LLC | Pursuit Aerospace | Chromium | 0.16 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Trichloroethylene | 0.13 |
| CALLAWAY GOLF BALL OPERATIONS INC | Callaway Golf | Diisocyanates | 0.11 |
| 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.) | 0.11 |
| ROGERS CORP - WOODSTOCK | Rogers Corp. | Diisocyanates | 0.05 |
| 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) | 0.04 |
| TRELLEBORG COATED SYSTEMS US INC. | Trelleborg | N,N-Dimethylformamide | 0.04 |
| SCAPA NA LLC | Schweitzer-Mauduit International | Ethylbenzene | 0.04 |
| CONNECTICUT GALVANIZING CORP | CONNECTICUT GALVANIZING CORP | Zinc compounds | 0.04 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Dichloromethane (Methylene chloride) | 0.04 |
| HAZEN PAPER CO | HAZEN PAPER CO | n-Butyl alcohol (1-Butanol) | 0.04 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | Ethylbenzene | 0.04 |
| MACE ADHESIVES & COATINGS CO I NC | MACE ADHESIVES & COATINGS CO I NC | Diisocyanates | 0.03 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Ozone | 0.03 |
| VIBRAM CORP | VIBRAM USA | Diisocyanates | 0.03 |
| SMITH & WESSON INC. | Smith & Wesson | Lead compounds | 0.03 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Formaldehyde | 0.02 |
| PREFERE MELAMINES LLC | One Rock Capital Partners | n-Butyl alcohol (1-Butanol) | 0.02 |
| COLT'S MANUFACTURING CO LLC | Colt CZ Group | Lead compounds | 0.02 |
| RANDOLPH PRODUCTS CO | RANDOLPH PRODUCTS CO | Xylene (mixed isomers) | 0.02 |
| WESTFIELD ELECTROPLATING CO | WESTFIELD ELECTROPLATING CO | Nitric acid | 0.02 |
| WHITCRAFT LLC | Pursuit Aerospace | Nickel | 0.02 |
| OMG INC | Steel Partners Holdings | Lead | 0.02 |
| RPM WOOD FINISHES GROUP INC. | RPM International | Certain glycol ethers | 0.01 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Ethylbenzene | 0.01 |
| TAYLOR & FENN CO | TAYLOR & FENN CO | Lead | 0.01 |
| RATHBONE PRECISION METALS INC | Calvi Holding | Nitric acid | 0.01 |
| O'CONNELL OIL NORTHAMPTON FACILITY | O'CONNELL OIL ASSOCIATES INC | Benzene | 0.01 |
| SCAPA NA LLC | Schweitzer-Mauduit International | Xylene (mixed isomers) | 0.01 |
| HAR-CONN CHROME CO | HAR-CONN CHROME CO | Nitric acid | 0.01 |
| KAMATICS CORP | Arcline Investment Management | Copper | 0.01 |
| KAMATICS CORP | Arcline Investment Management | Nitric acid | 0.01 |
| ELEMENT MATERIALS TECHNOLOGY HARTFORD INC. | Temasek Holdings | Nitric acid | 0.01 |
| SIMONIZ USA INC. | Syndet Products | Certain glycol ethers | 0.00 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | Xylene (mixed isomers) | 0.00 |
| TURF CARE SUPPLY-HATFIELD PLANT | Platte River Equity | Manganese compounds | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Diethanolamine | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | N,N-Dimethylformamide | 0.00 |
| DYNO NOBEL INC | Incitec Pivot | Lead compounds | 0.00 |
| PRATT & WHITNEY | RTX Corporation | Nitric acid | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Certain glycol ethers | 0.00 |
| PRYSMIAN CABLE & SYSTEMS LLC | Prysmian Group | Ozone | 0.00 |
| TRIUMPH ENGINE CONTROL SYSTEMS LLC | Triumph Group | Lead compounds | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Tetrachloroethylene | 0.00 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Zinc compounds | 0.00 |
| TILCON CONNECTICUT INC | CRH PLC | Polycyclic aromatic compounds | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Xylene (mixed isomers) | 0.00 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Certain glycol ethers | 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 |
| MUSTANG MOTORCYCLE PRODUCTS LLC | MAG INC | Styrene | 0.00 |
| SOLUTIA INC | Eastman Chemical | Methanol | 0.00 |
| FLEXCON CO INC. | FLEXCON HOLDINGS TRUST | Xylene (mixed isomers) | 0.00 |
| PREFERE MELAMINES LLC | One Rock Capital Partners | Methanol | 0.00 |
| CS-MA LLC DBA CONSTRUCTION SERVICE | CS-MA LLC | Lead | 0.00 |
| CS-MA LLC DBA CONSTRUCTION SERVICE | CS-MA LLC | Lead | 0.00 |
| DUR-A-FLEX | Sherwin-Williams | Methyl methacrylate | 0.00 |
| SMITH & WESSON INC. | Smith & Wesson | Nitric acid | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Ethylene glycol | 0.00 |
| SCAPA NA LLC | Schweitzer-Mauduit International | Toluene | 0.00 |
| SYN-MAR PRODUCTS INC. | SYN-MAR PRODUCTS INC. | Styrene | 0.00 |
| SONOCO PRODUCTS CO | Sonoco Products | Lead | 0.00 |
| SMITH & WESSON INC. | Smith & Wesson | Copper | 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 |
| O'CONNELL OIL NORTHAMPTON FACILITY | O'CONNELL OIL ASSOCIATES INC | Hydrogen sulfide | 0.00 |
| FLEXCON CO INC. | FLEXCON HOLDINGS TRUST | Vinyl acetate | 0.00 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Lead | 0.00 |
| RANDOLPH PRODUCTS CO | RANDOLPH PRODUCTS CO | Toluene | 0.00 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | Toluene | 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 |
| OLDCASTLE PRECAST INC | CRH PLC | Lead compounds | 0.00 |
| DYNO NOBEL INC | Incitec Pivot | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| FLEXCON CO INC. | FLEXCON HOLDINGS TRUST | Toluene | 0.00 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Lead compounds | 0.00 |
| JAMES AUSTIN CO | Centerbridge Partners | Methanol | 0.00 |
| TURF CARE SUPPLY-HATFIELD PLANT | Platte River Equity | Lead compounds | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Toluene | 0.00 |
| ITW SHINEMARK | Illinois Tool Works | Toluene | 0.00 |
| DAUPHINAIS CONCRETE | DAUPHINAIS CONCRETE INC | Lead | 0.00 |
| TRELLEBORG COATED SYSTEMS US INC. | Trelleborg | Toluene | 0.00 |
| SHURTAPE TECHNOLOGIES LLC | SHURTAPE TECHNOLOGIES LLC | n-Hexane (Hexane) | 0.00 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | n-Hexane (Hexane) | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | n-Butyl alcohol (1-Butanol) | 0.00 |
| SOLENIS LLC | Platinum Equity | Formic acid | 0.00 |
| NUTMEG CHROME CORP | NUTMEG CHROME CORP | Lead compounds | 0.00 |
| SHURTAPE TECHNOLOGIES LLC | SHURTAPE TECHNOLOGIES LLC | Toluene | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Formic acid | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Methanol | 0.00 |
| TURF CARE SUPPLY-HATFIELD PLANT | Platte River Equity | 2,4-D | 0.00 |
| WESTFIELD ELECTROPLATING CO | WESTFIELD ELECTROPLATING CO | Cyanide compounds | 0.00 |
| ADVANCED ADHESIVE SYSTEMS INC | ADVANCED ADHESIVE SYSTEMS INC | Methyl methacrylate | 0.00 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Nitric acid | 0.00 |
| CONSTRUCTION SERVICE LLC | CS-MA LLC | Lead | 0.00 |
| FLEXCON CO INC. | FLEXCON HOLDINGS TRUST | n-Hexane (Hexane) | 0.00 |
| RPM WOOD FINISHES GROUP INC. | RPM International | Methyl isobutyl ketone | 0.00 |
| CLEANPART EAST | Mitsubishi Chemical | Nitric acid | 0.00 |
| O'CONNELL OIL NORTHAMPTON FACILITY | O'CONNELL OIL ASSOCIATES INC | Polycyclic aromatic compounds | 0.00 |
| ENSIGN-BICKFORD AEROSPACE & DEFENSE CO | ENSIGN-BICKFORD INDUSTRIES INC | Lead compounds | 0.00 |
| U.S. DOD USAF WESTOVER ARB | U.S. Government | Xylene (mixed isomers) | 0.00 |
| E INK CORP | E INK CORP | Toluene | 0.00 |
| ORAFOL AMERICAS INC | ORAFOL INTERNATIONAL | Toluene | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Methyl isobutyl ketone | 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 |
| 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 |
| 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 |
| ELECTRIC MOTION CO INC. | Hubbell | Copper | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | tert-Butyl alcohol (tert-Butanol) | 0.00 |
| DAUPHINAIS CONCRETE | DAUPHINAIS CONCRETE INC | 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 |
| CONSTRUCTION SERVICE LLC | CS-MA LLC | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 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 |
| ROGERS CORP - WOODSTOCK | Rogers Corp. | N-Methyl-2-pyrrolidone | 0.00 |