| PENNSYLVANIA |  |  |  |
| The 25 Facilities in Pennsylvania storing the largest amounts of extremely hazardous substances.* |
| Facility Name | City | Maximum amount in a single process (lbs) | Chemical |
1 | DYNO NOBEL INC. (DONORA PLANT) | DONORA | 18,022,528 | Ammonia (anhydrous)
2 | WELLAND CHEMICAL, INC. | NEWELL | 17,614,240 | Ammonia (anhydrous)
3 | INDSPEC CHEMICAL CORPORATION | PETROLIA | 2,524,100 | Oleum (Fuming Sulfuric acid)
4 | SUNOCO, INC. (R&M) MARCUS HOOK REFINERY | MARCUS HOOK | 2,300,000 | Ethylene oxide
5 | RHODIA INC. MORRISVILLE PLANT | MORRISVILLE | 1,600,000 | Phosphorus trichloride
6 | FLEXSYS AMERICA L.P. | MONONGAHELA | 1,482,000 | Carbon disulfide
7 | FOAMEX EDDYSTONE PLANT | EDDYSTONE | 1,291,800 | Toluene diisocyanate (unspecified isomer)
8 | TANNER INDUSTRIES, INC. | PHILADELPHIA | 1,240,000 | Ammonia (conc >=20%)
9 | JAMES AUSTIN COMPANY | MARS | 720,000 | Chlorine
10 | CHEMPLY DIV. OF E+E (US) INC. | BUNOLA | 704,000 | Chlorine
11 | LAROCHE INDUSTRIES INC. | DONORA | 702,078 | Ammonia (anhydrous)
12 | MANLEY-REGAN CHEMICALS DIV. OF E+E (US) INC. | MIDDLETOWN | 690,000 | Chlorine
13 | FOAMEX CORRY PLANT | CORRY | 590,000 | Toluene diisocyanate (unspecified isomer)
14 | SAMUEL S. BAXTER WATER TREATMENT PLANT | PHILADELPHIA | 540,000 | Chlorine
15 | LONZA INC. | WILLIAMSPORT | 540,000 | Chlorine
16 | OCCIDENTAL CHEMICAL CORP. - POTTSTOWN PLANT | POTTSTOWN | 412,600 | Vinyl acetate monomer
17 | SUNOCO, INC. (R&M) - PHILADELPHIA REFINERY | PHILADELPHIA | 400,000 | Hydrogen fluoride (conc >=50%)
18 | ROHM AND HAAS PHILADELPHIA PLANT | PHILADELPHIA | 380,000 | Oleum (Fuming Sulfuric acid)
19 | APPLETON PAPERS INC. - SPRING MILL | ROARING SPRING | 360,000 | Chlorine
20 | TANNER INDUSTRIES, INC. | MORRISVILLE | 316,000 | Ammonia (anhydrous)
21 | LEBANON CHEMICAL CORPORATION - LEBANON | LEBANON | 290,000 | Ammonia (anhydrous)
22 | BORDEN CHEMICAL, INC. - MOUNT JEWETT | MT JEWETT | 270,000 | Formaldehyde (solution)
23 | ARMCO INC BUTLER OPERATIONS - MAIN PLANT | BUTLER | 250,000 | Hydrogen fluoride (conc >=50%)
24 | OSRAM SYLVANIA PRODUCTS, INC. TOWANDA | TOWANDA | 240,000 | Ammonia (conc >=20%)
25 | CARTEX CORPORATION - FAIRLESS HILLS PLANT | FAIRLESS HILLS | 224,000 | Toluene diisocyanate (unspecified isomer)
| *Extremely hazardous substances as defined by the U.S. Environmental Protection Agency under the Clean Air Act, Section 112(r). |
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