Title 40

PART 421 SUBPART W

Subpart W - Primary Precious Metals and Mercury Subcategory Source:50 FR 38361, Sept. 20, 1985, unless otherwise noted.

40:31.0.1.1.21.23.5.1SECTION 421.250
   421.250 Applicability: Description of the primary precious metals and mercury subcategory.
40:31.0.1.1.21.23.5.2SECTION 421.251
   421.251 Specialized definitions.
40:31.0.1.1.21.23.5.3SECTION 421.252
   421.252 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
40:31.0.1.1.21.23.5.4SECTION 421.253
   421.253 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
40:31.0.1.1.21.23.5.5SECTION 421.254
   421.254 Standards of performance for new sources.
40:31.0.1.1.21.23.5.6SECTION 421.255
   421.255 [Reserved]
40:31.0.1.1.21.23.5.7SECTION 421.256
   421.256 Pretreatment standards for new sources.
40:31.0.1.1.21.23.5.8SECTION 421.257
   421.257 [Reserved]