PART 421--NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY
421.1
Applicability.
421.3
Monitoring and reporting requirements.
421.4
Compliance date for pretreatment standards for existing sources (PSES).
421.5
Removal allowances for pretreatment standards.
421.10
Applicability; description of the bauxite refining subcategory.
421.11
Specialized definitions.
421.12
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.13
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.15
Standards of performance for new sources.
421.16
Pretreatment standards for new sources.
421.20
Applicability: description of the primary aluminum smelting subcategory.
421.21
Specialized definitions.
421.22
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.23
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.24
Standards of performance for new sources.
421.26
Pretreatment standards for new sources.
421.30
Applicability: Description of the secondary aluminum smelting subcategory.
421.31
Specialized definitions.
421.32
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.33
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.34
Standards of performance for new sources.
421.35
Pretreatment standards for existing sources.
421.36
Pretreatment standards for new sources.
421.40
Applicability: Description of the primary copper smelting subcategory.
421.41
Specialized definitions.
421.42
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.43
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.44
Standards of performance for new sources.
421.46
Pretreatment standards for new sources.
421.50
Applicability: Description of the primary electrolytic copper refining subcategory.
421.51
Specialized definitions.
421.52
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.53
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.54
Standards of performance for new sources.
421.56
Pretreatment standards for new sources.
421.60
Applicability: Description of the secondary copper subcategory.
421.61
Specialized definitions.
421.62
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.63
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.64
Standards of performance for new sources.
421.65
Pretreatment standards for existing sources.
421.66
Pretreatment standards for new sources.
421.70
Applicability: Description of the primary lead subcategory.
421.71
Specialized definitions.
421.72
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.73
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.74
Standards of performance for new sources.
421.75
Pretreatment standards for existing sources.
421.76
Pretreatment standards for new sources.
421.80
Applicability: Description of the primary zinc subcategory.
421.81
Specialized definitions.
421.82
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.83
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.84
Standards of performance for new sources.
421.85
Pretreatment standards for existing sources.
421.86
Pretreatment standards for new sources.
421.90
Applicability: Description of the metallurgical acid plants subcategory.
421.91
Specialized definitions.
421.92
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.93
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.94
Standards of performance for new sources.
421.95
Pretreatment standards for existing sources.
421.96
Pretreatment standards for new sources.
421.100
Applicability: Description of the primary tungsten subcategory.
421.101
Specialized definitions.
421.102
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.103
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.104
Standards of performance for new sources.
421.105
Pretreatment standards for existing sources.
421.106
Pretreatment standards for new sources.
421.110
Applicability: Description of the primary columbium-tantalum subcategory.
421.111
Specialized definitions.
421.112
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.113
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.114
Standards of performance for new sources.
421.115
Pretreatment standards for existing sources.
421.116
Pretreatment standards for new sources.
421.120
Applicability: Description of the secondary silver subcategory.
421.121
Specialized definitions.
421.122
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.123
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.124
Standards of performance for new sources.
421.125
Pretreatment standards for existing sources.
421.126
Pretreatment standards for new sources.
421.130
Applicability: Description of the secondary lead subcategory.
421.131
Specialized definitions.
421.132
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.133
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.134
Standards of performance for new sources.
421.135
Pretreatment standards for existing sources.
421.136
Pretreatment standards for new sources.
421.140
Applicability: Description of the primary antimony subcategory.
421.141
Specialized definitions.
421.142
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.143
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.144
Standards of performance for new sources.
421.146
Pretreatment standards for new sources.
421.150
Applicability: Description of the primary beryllium subcategory.
421.151
Specialized definitions.
421.152
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.153
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.154
Standards of performance for new sources.
421.156
Pretreatment standards for new sources.
421.180
Applicability: Description of the primary and secondary germanium and gallium subcategory.
421.181
Specialized definitions.
421.182
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.183
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.184
Standards of performance for new sources.
421.185
Pretreatment standards for existing sources.
421.186
Pretreatment standards for new sources.
421.190
Applicability: Description of the secondary indium subcategory.
421.191
Specialized definitions.
421.194
Standards of performance for new sources.
421.195
Pretreatment standards for existing sources.
421.196
Pretreatment standards for new sources.
421.200
Applicability: Description of the secondary mercury subcategory.
421.201
Specialized definitions.
421.204
Standards of performance for new sources.
421.206
Pretreatment standards for new sources.
421.210
Applicability: Description of the primary molybdenum and rhenium subcategory.
421.211
Specialized definitions.
421.212
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.213
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.214
Standards of performance for new sources.
421.216
Pretreatment standards for new sources.
421.220
Applicability: Description of the secondary molybdenum and vanadium subcategory.
421.221
Specialized definitions.
421.222
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.223
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.224
Standards of performance for new sources.
421.226
Pretreatment standards for new sources.
421.230
Applicability: Description of the primary nickel and cobalt subcategory.
421.231
Specialized definitions.
421.232
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.233
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.234
Standards of performance for new sources.
421.236
Pretreatment standards for new sources.
421.240
Applicability: Description of the secondary nickel subcategory.
421.241
Specialized definitions.
421.244
Standards of performance for new sources.
421.245
Pretreatment standards for existing sources.
421.246
Pretreatment standards for new sources.
421.250
Applicability: Description of the primary precious metals and mercury subcategory.
421.251
Specialized definitions.
421.252
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.253
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.254
Standards of performance for new sources.
421.256
Pretreatment standards for new sources.
421.260
Applicability: Description of the secondary precious metals subcategory.
421.261
Specialized definitions.
421.262
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.263
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.264
Standards of performance for new sources.
421.265
Pretreatment standards for existing sources.
421.266
Pretreatment standards for new sources.
421.270
Applicability: Description of the primary rare earth metals subcategory.
421.271
Specialized definitions.
421.274
Standards of performance for new sources.
421.275
Pretreatment standards for existing sources.
421.276
Pretreatment standards for new sources.
421.280
Applicability: Description of the secondary tantalum subcategory.
421.281
Specialized definitions.
421.282
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.283
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.284
Standards of performance for new sources.
421.286
Pretreatment standards for new sources.
421.290
Applicability: Description of the secondary tin subcategory.
421.291
Specialized definitions.
421.292
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.293
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.294
Standards of performance for new sources.
421.295
Pretreatment standards for existing sources.
421.296
Pretreatment standards for new sources.
421.300
Applicability: Description of the primary and secondary titanium subcategory.
421.301
Specialized definitions.
421.302
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.303
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.304
Standards of performance for new sources.
421.305
Pretreatment standards for existing sources.
421.306
Pretreatment standards for new sources.
421.310
Applicability: Description of the secondary tungsten and cobalt subcategory.
421.311
Specialized definitions.
421.312
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.313
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.314
Standards of performance for new sources.
421.315
Pretreatment standards for existing sources.
421.316
Pretreatment standards for new sources.
421.320
Applicability: Description of the secondary uranium subcategory.
421.321
Specialized definitions.
421.322
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.323
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
421.324
Standards of performance for new sources.
421.326
Pretreatment standards for new sources.
421.330
Applicability: Description of the primary zirconium and hafnium subcategory.
421.331
Specialized definitions.
421.332
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
421.333
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.