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ASARCQ EXHIBIT I EI Paso Plant October 7, 1983 ENVIRONMENTAL IMPROVEMENT PROJECTS 1970 - 1983 fthvr /yppao*r/0tv Numm&es 1970 &U, 5Yo -5V Hoods on Dross Reverb Matte Launder Hoods for Cottrell Dust Handling Cottrell Expansion Model 92 Tennant Sweeper No. 2 Anode Afterburner Zinc . 8 Holding Furnace Ventilation Sinter Plant Scrubbers Calcine Loading Ventilation Total for Year Running Sub-total Cost $ 5,000 Est. 5,000 " 1,500,000 8,000 17,000 55,000 115,000 10,000 % 1,715,000 % 1,715,000 1971 SSf Weather Stations SiC RSR Flue Dust Conveyor System RSR Draft Improvement SS 2 Calcine Loading Ventilation SS/ No. 1 Anode Afterburner SC o Rectifiers for Converter Cottrell Total for Year Running Sub-total % 5,000 58,000 23,000 8,000 16,000 11,000 $ 121,000 $ 1,836,000 1972 Ventilation of Receiving Dross Kettle $ 2,000 Est. Ventilation of No. 27 Conveyor 2,000 " SC7 Blast Furnace Baghouse Stacks 72,000 Ventilating Top Floor of DSL Building 13,000 Additional Rectifiers for RSR Cottrell 25,000 -5*7/ 2000-Gallon Water Truck 57/ Elgin Street Sweeper ^79 Cadmium Unloading System --- &?*+>*** RA trdr s~t>~7 SCI Blast Furnace Baghouse Dust Enclosure S*7 DSL Baghouse Dust Enclosure s*n Baghouse Dust Trestle Enclosure sso Addition of #1 Acid Plant (for Copper 6,000 11,000 155,000 12,000 14,000 4,000 14,291,722 Process Gases) Total for Year Running Sub-total % 14,607,722 % 16,443,722 DMART 320 c ENVIRONMENTAL IMPROVEMENT PROJECTS (cont'd) 1973 S7? Deleading Baghouse Extension S7? Zinc Track Hopper Cadmium Unloading Ventilation S~)? Zinc Kiln Ventilation Matte Tap Ventilation Relocate Calcine Vent Pipe Dross Reverb Launder Ventilation Total for Year Running Sub-total Cost .$ 316,000 316.00 123.000 204.000 2,000 Est. ________ 10,000 $ 971,000 $ 17,414,722 Sn 0t/ 1974 ___________ Reverb Crossover flues Converter Secondary Hood Local Emission Controls, which include: $ 15,000 Est. 67,000 480,000 1. Blast Furnace Elevator Ventilation 2. Cadmium Plant Ventilation 3. Dross Plant Ventilation 4. Sinter Plant Ventilation 5. Dross Cadmium Plant Crane Ventilation c Pneumatic Conveying System for Silica Dust Total for Year % 110,000 672,000 Running Sub-total $ 18,086,722 6/0 &/( 1975 Rebuilt Cottrell Floor Converter Building Fume Control (Building Enclosure) Mobile Sweepers _ Cottrell Improvements Total for Year Running Sub-total 1976 ____________________________ Zi Major Renovation of Lead Smelter In cluding new facilities for Unloading, Sintering, Acid Plant (Cont. through 1982) /fpf Total for Year Running Sub-total 1978 & Reverb Cottrell Rehabilitation c /0 Ventilation of Reverb Furnace Return Launder G>/0 Enclosure of Calcine Charge Area 6/0 Hoods for Zinc Matte Tapping Total for Year Running Sub-total $ 25,000 Est. 6,605,000 .10,000 38,000 $ 6,678,000 $ 24,764,722 ooo^ $ 83,486,881 3/bV " S'*/ 7 yG^ooq $ 83,486,881 $ 108 ,251,603 $ 664,000 10.000 21,000 ________ .23,000 $ 718,000 3 108,969,603 I ENVIRONMENTAL IMPROVEMENT PROJECTS (cont'd) 1979 */*/ Compliance Facilities for OSHA Arsenic Standard * Cadmium Dust Loading G>SX> Street Sweeper Engineering Study - Converter Secondary Hoods Total for Year Running Sub-total Cost $ 1,830,000 37,000 38,000 18,000 --2// $ 1,923,000 $ 110,892,603 These projects were primarily related to OSHA Standards. The projects have been included on this list because the projects had some effect on reducing fugitive emissions. 6jT7 1980 Environmental Computer Up-Grade Matte Ladle Hoods Hi-Pressure Wash System Roaster Siding Repairs Mill Siding Repairs Lead Stack Transmissometer Modify Blast Furnace Settler Hood Total for Year Running Sub-total Cost $ 16,000 97,000 10,000 157,000 160,000 23,000 Est. 3,000 " $ 466,000 111,358,603 1981 Movable Kettle Hood Lead Kettle Hood 8 Duct Extension of E. Helena Dust Unloading Building RR Flue Bulk Head RSR Flue Door 66*? Cottrell Transformers 6,70 Blast Furnace Ventilation &73 6>7% Converter Gas Crossover Flue Environmental Computer Upgrade Total for Year Running Sub-total 67 6 ffD 6?3 1982 Roaster 6 Converter Transmissometers Tymco Sweeper Water Blaster D6L Ventilation Baghouse Modification Total for Year c Running Sub-total $ 6,000 5,000 80,000 133,000 110,000 30,000 730,000 170,200 110,000 -- $ 1,374,200 $ 112,732,803 * $ 44,000 78,000 34,000 12,000 $ 168,000 $ 112,900,803 ENVIRONMENTAL IMPROVEMENT PROJECTS (cont'd) 1983 6S& Computerized Process Gas Handling System- CfiC 6*7 Gas Reformer for Anode Furnaces Converter Cottrell Modification <Z>2-5 Zig/Zag Blender Building Sprinkler System Ventilation System for "Down" Roasters Acid Plant Projects (to reduce screening, lower tail gas) List: Catalyst Mist precipitator Inlet Duct Modifications Preheater Retubing #5 Heat Exchanger Blast Furnace Modifications for Slag Hauler Blast Furnace SOj Monitor Dross Plant Ventilation Systems Cost 155.000 600.000 1,902,000 200.000 Est. 100.000 " 50,000 " 400.000 150.000 Est. 50.000 " 30.000 " 50.000 " 25.000 250.000 Est. Tota.1 for Year Running Sub-total $ 3,962,000 $ 116,862,803 tfajS: TOTAL AnTMO/JY PLArJT C.OS7S 7 pec'rs ' Cfi>PrP0^/47oJ