40:31.0.1.1.21.5.5.1 | SECTION 421.50
| 421.50 Applicability: Description of the primary electrolytic copper refining subcategory. | |
40:31.0.1.1.21.5.5.2 | SECTION 421.51
| 421.51 Specialized definitions. | |
40:31.0.1.1.21.5.5.3 | SECTION 421.52
| 421.52 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. | |
40:31.0.1.1.21.5.5.4 | SECTION 421.53
| 421.53 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. | |
40:31.0.1.1.21.5.5.5 | SECTION 421.54
| 421.54 Standards of performance for new sources. | |
40:31.0.1.1.21.5.5.6 | SECTION 421.55
| 421.55 [Reserved] | |
40:31.0.1.1.21.5.5.7 | SECTION 421.56
| 421.56 Pretreatment standards for new sources. | |
40:31.0.1.1.21.5.5.8 | SECTION 421.57
| 421.57 [Reserved] | |