§ 421.305 — Pretreatment Standards For Existing Sources

Except as provided in 40 CFR 403.7 and 403.13, any existing 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 existing sources. The mass of wastewater pollutants in primary and secondary titanium process wastewater introduced into a POTW must not exceed the following values:

(a) Chlorination off-gas wet air pollution control.

PSES for the Primary and Secondary Titanium Subcategory

(b) Chlorination Area-vent wet air pollution control.

PSES for the Primary and Secondary Titanium Subcategory

(c) TiCl4 handling wet air pollution control.

PSES for the Primary and Secondary Titanium Subcategory

(d) Reduction area wet air pollution control.

PSES for the Primary and Secondary Titanium Subcategory

(e) Melt cell wet air pollution control.

PSES for the Primary and Secondary Titanium Subcategory

(f) Chlorine liquefaction wet air pollution control.

PSES for the Primary and Secondary Titanium Subcategory

(g) Sodium reduction container reconditioning wash water.

PSES for the Primary and Secondary Titanium Subcategory

(h) Chip crushing wet air pollution control.

PSES for the Primary and Secondary Titanium Subcategory

(i) Acid leachate and rinse water.

PSES for the Primary and Secondary Titanium Subcategory

(j) Sponge crushing and screening wet air pollution control.

PSES for the Primary and Secondary Titanium Subcategory

(k) Acid pickle and wash water.

PSES for the Primary and Secondary Titanium Subcategory

(l) Scrap milling wet air pollution control.

PSES for the Primary and Secondary Titanium Subcategory

(m) Scrap detergent wash water.

PSES for the Primary and Secondary Titanium Subcategory

(n) Casting crucible wash water.

PSES for the Primary and Secondary Titanium Subcategory

(o) Casting contact cooling water.

PSES for the Primary and Secondary Titanium Subcategory