(a) 
         Except as provided in  40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with  40 CFR part 403 and achieve the following pretreatment standards for existing sources.
     
    
        
            Subpart A—PSES
            
                
                
                
                
                    
                    
                
            
            
                 | 
                Milligrams per liter (mg/l) | 
            
            
                | Chromium | 
                0.42 | 
                0.17 | 
            
            
                | Lead | 
                0.15 | 
                0.13 | 
            
            
                | Nickel | 
                1.41 | 
                1.00 | 
            
            
                | Zinc | 
                1.33 | 
                0.56 | 
            
        
     
    
        
        (b) 
         In cases where POTW find it necessary to impose mass effluent pretreatment standards the following equivalent mass standards are provided:
     
    
        
            Subpart A—PSES
            
                
                
                
                
                    
                    
                    
                    
                
            
            
                 | 
                Metric units—mg/m 2 of area processed or coated | 
            
            
                | Chromium | 
                16.82 | 
                0.53 | 
                6.81 | 
                0.22 | 
            
            
                | Lead | 
                6.01 | 
                0.19 | 
                5.21 | 
                0.16 | 
            
            
                | Nickel | 
                56.5 | 
                1.78 | 
                40.1 | 
                1.26 | 
            
            
                | Zinc | 
                53.3 | 
                1.68 | 
                22.5 | 
                0.71 | 
            
            
                 | 
                English units—lbs/1 million ft 2 of area processed or coated | 
            
            
                | Chromium | 
                3.45 | 
                0.11 | 
                1.4 | 
                0.05 | 
            
            
                | Lead | 
                1.23 | 
                0.04 | 
                1.07 | 
                0.03 | 
            
            
                | Nickel | 
                11.6 | 
                0.37 | 
                8.20 | 
                0.26 | 
            
            
                | Zinc | 
                10.9 | 
                0.35 | 
                4.6 | 
                0.15 | 
            
        
     
    
        
            Code of Federal Regulations
        
        [47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36543, Sept. 6, 1985]
    
    
        
        (a) 
         Except as provided in  40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with  40 CFR part 403 and achieve the following pretreatment standards for existing sources.
     
    
        
            Subpart A—PSES
            
                
                
                
                
                    
                    
                
            
            
                 | 
                Milligrams per liter (mg/l) | 
            
            
                | Chromium | 
                0.42 | 
                0.17 | 
            
            
                | Lead | 
                0.15 | 
                0.13 | 
            
            
                | Nickel | 
                1.41 | 
                1.00 | 
            
            
                | Zinc | 
                1.33 | 
                0.56 | 
            
        
     
    
        
        (b) 
         In cases where POTW find it necessary to impose mass effluent pretreatment standards the following equivalent mass standards are provided:
     
    
        
            Subpart A—PSES
            
                
                
                
                
                    
                    
                    
                    
                
            
            
                 | 
                Metric units—mg/m 2 of area processed or coated | 
            
            
                | Chromium | 
                16.82 | 
                0.53 | 
                6.81 | 
                0.22 | 
            
            
                | Lead | 
                6.01 | 
                0.19 | 
                5.21 | 
                0.16 | 
            
            
                | Nickel | 
                56.5 | 
                1.78 | 
                40.1 | 
                1.26 | 
            
            
                | Zinc | 
                53.3 | 
                1.68 | 
                22.5 | 
                0.71 | 
            
            
                 | 
                English units—lbs/1 million ft 2 of area processed or coated | 
            
            
                | Chromium | 
                3.45 | 
                0.11 | 
                1.4 | 
                0.05 | 
            
            
                | Lead | 
                1.23 | 
                0.04 | 
                1.07 | 
                0.03 | 
            
            
                | Nickel | 
                11.6 | 
                0.37 | 
                8.20 | 
                0.26 | 
            
            
                | Zinc | 
                10.9 | 
                0.35 | 
                4.6 | 
                0.15 | 
            
        
     
    
        
            Code of Federal Regulations
        
        [47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36543, Sept. 6, 1985]