Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Except as provided in 40 CFR 125.30 to 125.32 , any existing point source subject to this subcategory shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available: (1) There may not be discharge of process wastewater pollutants from metal preparation operations. (2) The discharge of process wastewater pollutants from all porcelain enameling coating operations may not exceed the values set forth below: