40 CFR Subpart W
Primary Precious Metals and Mercury Subcategory
June 9, 2020
§
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
§
421.255
[Reserved]
§
421.256
Pretreatment standards for new sources
§
421.257
[Reserved]
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