§ 421.296 — Pretreatment Standards For New Sources

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in secondary tin process wastewater introduced into a POTW shall not exceed the following values:

(a) Tin smelter SO2 scrubber.

PSNS for the Secondary Tin Subcategory

(b) Dealuminizing rinse.

PSNS for the Secondary Tin Subcategory

(c) Tin mud acid neutralization filtrate.

PSNS for the Secondary Tin Subcategory

(d) Tin hydroxide wash.

PSNS for the Secondary Tin Subcategory

(e) Spent electrowinning solution from new scrap.

PSNS for the Secondary Tin Subcategory

(f) Spent electrowinning solution from municipal solid waste.

PSNS for the Secondary Tin Subcategory

(g) Tin hydroxide supernatant from scrap.

PSNS for the Secondary Tin Subcategory

(h) Tin hydroxide supernatant from plating solutions and ludges.

PSNS for the Secondary Tin Subcategory

(i) Tin hydroxide filtrate.

PSNS for the Secondary Tin Subcategory