§ 421.252 — Effluent Limitations Guidelines 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 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:

(a) Smelter wet air pollution control.

BPT Limitations for the Primary Precious Metals and Mercury Subcategory

(b) Silver chloride reduction spent solution.

BPT Limitations for the Primary Precious Metals and Mercury Subcategory

(c) Electrolytic cells wet air pollution control.

BPT Limitations for the Primary Precious Metals and Mercury Subcategory

(d) Electrolyte preparation wet air pollution control.

BPT Limitations for the Primary Precious Metals and Mercury Subcategory

(e) Calciner wet air pollution control.

BPT Limitations for the Primary Precious Metals and Mercury Subcategory

(f) Calcine quench water.

BPT Limitations for the Primary Precious Metals and Mercury Subcategory

(g) Calciner stack gas contact cooling water.

BPT Limitations for the Primary Precious Metals and Mercury Subcategory

(h) Condenser blowdown.

BPT Limitations for the Primary Precious Metals and Mercury Subcategory

(i) Mercury cleaning bath water.

BPT Limitations for the Primary Precious Metals and Mercury Subcategory