| OMG INC | Steel Partners Holdings | Cobalt | 1,841.73 |
| BETE FOG NOZZLE INC. | BETE FOG NOZZLE INC. | Chromium | 116.54 |
| KAMATICS CORP | Arcline Investment Management | Chromium | 33.27 |
| SOLUTIA INC | Eastman Chemical | Formaldehyde | 28.44 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Chromium | 22.83 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Chromium | 22.53 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Chromium | 19.97 |
| PREFERE MELAMINES LLC | One Rock Capital Partners | Formaldehyde | 17.77 |
| SOLENIS LLC | Platinum Equity | Epichlorohydrin | 10.14 |
| BETE FOG NOZZLE INC. | BETE FOG NOZZLE INC. | Nickel | 9.64 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Chromium | 9.43 |
| OTIS SERVICE CENTER | Otis Worldwide Corporation | Chromium | 8.91 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Chromium | 4.72 |
| ARCLIN SURFACES - EAST LONGMEADOW CO. | The Jordan Company | Formaldehyde | 4.30 |
| BI-QEM INC. | BI-QEM INC | Formaldehyde | 4.22 |
| HYDROFERA LLC | Essity | Formaldehyde | 3.59 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Cobalt | 2.66 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Nickel | 2.35 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Nickel | 2.32 |
| PARADIGM MANCHESTER INC | Pursuit Aerospace | Nickel | 2.06 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Antimony compounds | 1.89 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Lead compounds | 1.65 |
| CALLAWAY GOLF BALL OPERATIONS INC | Callaway Golf | Diisocyanates | 1.53 |
| HAZEN PAPER CO | HAZEN PAPER CO | Certain glycol ethers | 1.39 |
| CARDINAL HEALTH / KPR | Cardinal Health | Acrylic acid | 1.06 |
| KAMATICS CORP | Arcline Investment Management | Nickel | 0.95 |
| DONCASTERS STORMS FORGE | Doncasters | Chromium | 0.24 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Nickel | 0.21 |
| BARNES AEROSPACE WINDSOR DIV | Barnes Group | Nickel | 0.21 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Nickel | 0.16 |
| 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.) | 0.14 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | Ethylbenzene | 0.12 |
| HAZEN PAPER CO | HAZEN PAPER CO | n-Butyl alcohol (1-Butanol) | 0.10 |
| PALMER FOUNDRY INC | PALMER FOUNDRY INC | Diisocyanates | 0.08 |
| OMG INC | Steel Partners Holdings | Lead | 0.08 |
| RPM WOOD FINISHES GROUP INC. | RPM International | Certain glycol ethers | 0.06 |
| WESTFIELD ELECTROPLATING CO | WESTFIELD ELECTROPLATING CO | Nitric acid | 0.06 |
| SCAPA NA LLC | Schweitzer-Mauduit International | Ethylbenzene | 0.05 |
| DONCASTERS STORMS FORGE | Doncasters | Nickel | 0.05 |
| SOLUTIA INC | Eastman Chemical | Vinyl acetate | 0.05 |
| O'CONNELL OIL NORTHAMPTON FACILITY | O'CONNELL OIL ASSOCIATES INC | Benzene | 0.04 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Ozone | 0.04 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Trichloroethylene | 0.03 |
| 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) | 0.03 |
| HART & COOLEY LLC | Egeria Investments | Chromium | 0.03 |
| TRELLEBORG COATED SYSTEMS US INC. | Trelleborg | N,N-Dimethylformamide | 0.02 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | Xylene (mixed isomers) | 0.02 |
| VIBRAM CORP | VIBRAM USA | Diisocyanates | 0.02 |
| TURF CARE SUPPLY-HATFIELD PLANT | Platte River Equity | Manganese compounds | 0.01 |
| RANDOLPH PRODUCTS CO | RANDOLPH PRODUCTS CO | Xylene (mixed isomers) | 0.01 |
| TAYLOR & FENN CO | TAYLOR & FENN CO | Lead | 0.01 |
| SMITH & WESSON INC. | Smith & Wesson | Lead compounds | 0.01 |
| BETE FOG NOZZLE INC. | BETE FOG NOZZLE INC. | Copper | 0.01 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Dichloromethane (Methylene chloride) | 0.01 |
| HART & COOLEY LLC | Egeria Investments | Nickel | 0.01 |
| SCAPA NA LLC | Schweitzer-Mauduit International | Xylene (mixed isomers) | 0.01 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Formaldehyde | 0.01 |
| KAMATICS CORP | Arcline Investment Management | Copper | 0.01 |
| KAMATICS CORP | Arcline Investment Management | Nitric acid | 0.01 |
| PREFERE MELAMINES LLC | One Rock Capital Partners | n-Butyl alcohol (1-Butanol) | 0.01 |
| DYNO NOBEL INC | Incitec Pivot | Lead compounds | 0.00 |
| RATHBONE PRECISION METALS INC | Calvi Holding | Nitric acid | 0.00 |
| ELEMENT MATERIALS TECHNOLOGY HARTFORD INC. | Temasek Holdings | Nitric acid | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Ethylbenzene | 0.00 |
| O'CONNELL OIL NORTHAMPTON FACILITY | O'CONNELL OIL ASSOCIATES INC | Hydrogen sulfide | 0.00 |
| SIMONIZ USA INC. | Syndet Products | Certain glycol ethers | 0.00 |
| MARMON INDUSTRIAL ENERGY & INFRASTRUCTURE GROUP | Berkshire Hathaway | Zinc compounds | 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 |
| SOLENIS LLC | Platinum Equity | Formic acid | 0.00 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | Toluene | 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 |
| SCAPA NA LLC | Schweitzer-Mauduit International | Toluene | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | N,N-Dimethylformamide | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Certain glycol ethers | 0.00 |
| DUR-A-FLEX | Sherwin-Williams | Methyl methacrylate | 0.00 |
| OLDCASTLE PRECAST INC | CRH PLC | Lead compounds | 0.00 |
| TURF CARE SUPPLY-HATFIELD PLANT | Platte River Equity | Lead compounds | 0.00 |
| SONOCO PRODUCTS CO | Sonoco Products | Lead | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Tetrachloroethylene | 0.00 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Certain glycol ethers | 0.00 |
| ADHESIVE APPLICATIONS INC. - O'NEILL ST EASTHAMPTON | ADHESIVES APPLICATIONS INC | n-Hexane (Hexane) | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Diethanolamine | 0.00 |
| DYNO NOBEL INC | Incitec Pivot | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Xylene (mixed isomers) | 0.00 |
| MUSTANG MOTORCYCLE PRODUCTS LLC | MAG INC | Styrene | 0.00 |
| SMITH & WESSON INC. | Smith & Wesson | Nitric acid | 0.00 |
| E INK CORP | E INK CORP | Toluene | 0.00 |
| O'CONNELL OIL NORTHAMPTON FACILITY | O'CONNELL OIL ASSOCIATES INC | Polycyclic aromatic compounds | 0.00 |
| PREFERE MELAMINES LLC | One Rock Capital Partners | Methanol | 0.00 |
| WESTFIELD ELECTROPLATING CO | WESTFIELD ELECTROPLATING CO | Cyanide compounds | 0.00 |
| SOLUTIA INC | Eastman Chemical | Methanol | 0.00 |
| SMITH & WESSON INC. | Smith & Wesson | Copper | 0.00 |
| TURF CARE SUPPLY-HATFIELD PLANT | Platte River Equity | 2,4-D | 0.00 |
| RPM WOOD FINISHES GROUP INC. | RPM International | Methyl isobutyl ketone | 0.00 |
| RANDOLPH PRODUCTS CO | RANDOLPH PRODUCTS CO | Toluene | 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 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Ethylene glycol | 0.00 |
| ITW SHINEMARK | Illinois Tool Works | Toluene | 0.00 |
| SHURTAPE TECHNOLOGIES LLC | SHURTAPE TECHNOLOGIES LLC | n-Hexane (Hexane) | 0.00 |
| CS-MA LLC DBA CONSTRUCTION SERVICE | CS-MA LLC | Lead | 0.00 |
| SYN-MAR PRODUCTS INC. | SYN-MAR PRODUCTS INC. | Styrene | 0.00 |
| CONSTRUCTION SERVICE LLC | CS-MA LLC | Lead | 0.00 |
| SHURTAPE TECHNOLOGIES LLC | SHURTAPE TECHNOLOGIES LLC | Toluene | 0.00 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Lead compounds | 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 | Toluene | 0.00 |
| ORAFOL AMERICAS INC | ORAFOL INTERNATIONAL | Toluene | 0.00 |
| JAMES AUSTIN CO | Centerbridge Partners | Methanol | 0.00 |
| ENSIGN-BICKFORD AEROSPACE & DEFENSE CO | ENSIGN-BICKFORD INDUSTRIES INC | Lead compounds | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | n-Butyl alcohol (1-Butanol) | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Formic acid | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Methanol | 0.00 |
| HART & COOLEY LLC | Egeria Investments | Manganese | 0.00 |
| TTM PRINTED CIRCUIT GROUP - STAFFORD DIV | TTM Technologies | Nitric acid | 0.00 |
| IRWIN INDUSTRIAL TOOLS DBA LENOX TOOLS | Stanley Black & Decker | Lead | 0.00 |
| U.S. DOD USAF WESTOVER ARB | U.S. Government | Xylene (mixed isomers) | 0.00 |
| ELECTRIC MOTION CO INC. | Hubbell | Copper | 0.00 |
| ASTRO CHEMICALS INC | ASTRO CHEMICALS INC | Methyl isobutyl ketone | 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 |
| 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 |