421.74—Standards of performance for new sources.
               		
               		
               	 	
               	 	
               	 	
               	 		
    
         Any new source subject to this subpart must achieve the following performance standards:
    
    
        
        (a) 
         Subpart G—Sinter Plant Materials Handling Wet Air Pollution Control.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of sinter production | 
            
                | Lead | .000 | .000 | 
            
                | Zinc | .000 | .000 | 
            
                | Total suspended solids | .000 | .000 | 
            
                | pH | (1) | (1) | 
            
                | 1Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (b) 
         Subpart G—Blast Furnace Wet Air Pollution Control.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of blast furnace lead bullion produced | 
            
                | Lead | .000 | .000 | 
            
                | Zinc | .000 | .000 | 
            
                | Total suspended solids | .000 | .000 | 
            
                | pH | (1) | (1) | 
            
                | 1Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (c) 
         Subpart G—Blast Furnace Slag Granulation.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of blast furnance lead bullion produced | 
            
                | Lead | .000 | .000 | 
            
                | Zinc | .000 | .000 | 
            
                | Total suspended solids | .000 | .000 | 
            
                | pH | (1) | (1) | 
            
                | 1Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (d) 
         Subpart G—Dross Reverberatory Slag Granulation.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of slag, speiss, or matte granulated | 
            
                | Lead | .000 | .000 | 
            
                | Zinc | .000 | .000 | 
            
                | Total suspended solids | .000 | .000 | 
            
                | pH | (1) | (1) | 
            
                | 1Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (e) 
         Subpart G—Dross Reverberatory Furnace Wet Air Pollution Control.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of dross reverberatory furnace production | 
            
                | Lead | .000 | .000 | 
            
                | Zinc | .000 | .000 | 
            
                | Total suspended solids | .000 | .000 | 
            
                | pH | (1) | (1) | 
            
                | 1Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (f) 
         Subpart G—Zinc Fuming Wet Air Pollution Control.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of blast furnace lead bullion produced | 
            
                | Lead | .000 | .000 | 
            
                | Zinc | .000 | .000 | 
            
                | Total suspended solids | .000 | .000 | 
            
                | pH | (1) | (1) | 
            
                | 1Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (g) 
         Subpart G—Hard Lead Refining Slag Granulation.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of hard lead produced | 
            
                | Lead | .000 | .000 | 
            
                | Zinc | .000 | .000 | 
            
                | Total suspended solids | .000 | .000 | 
            
                | pH | (1) | (1) | 
            
                | 1Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (h) 
         Subpart G—Hard Lead Refining Wet Air Pollution Control.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of hard lead produced | 
            
                | Lead | .000 | .000 | 
            
                | Zinc | .000 | .000 | 
            
                | Total suspended solids | .000 | .000 | 
            
                | pH | (1) | (1) | 
            
                | 1Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (i) 
         Subpart G—Facility Washdown.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of lead bullion produced | 
            
                | Lead | .000 | .000 | 
            
                | Zinc | .000 | .000 | 
            
                | Total suspended solids | .000 | .000 | 
            
                | pH | (1) | (1) | 
            
                | Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (j) 
         Subpart G—Employee Handwash.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of lead bullion produced | 
            
                | Lead | .924 | .429 | 
            
                | Zinc | 3.366 | 1.386 | 
            
                | Total suspended solids | 49.500 | 39.600 | 
            
                | pH | (1) | (1) | 
            
                | Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (k) 
         Subpart G—Respirator Wash.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of lead bullion produced | 
            
                | Lead | 1.484 | .689 | 
            
                | Zinc | 5.406 | 2.226 | 
            
                | Total suspended solids | 79.500 | 63.600 | 
            
                | pH | (1) | (1) | 
            
                | Within the range of 7.5 to 10.0 at all times. | 
        
     
    
        
        (l) 
         Subpart G—Laundering of Uniforms.
     
    
        
            NSPS
            
                
                
                
            
            
                |  | mg/kkg (pounds per billion pounds) of lead bullion produced | 
            
                | Lead | 4.340 | 2.015 | 
            
                | Zinc | 15.810 | 6.510 | 
            
                | Total suspended solids | 232.500 | 186.000 | 
            
                | pH | (1) | (1) | 
            
                | Within the range of 7.5 to 10.0 at all times. | 
        
     
    [49 FR 8803, Mar. 8, 1984, as amended at 49 FR 29795, July 24, 1984]