Code of Federal Regulations (alpha)

CFR /  Title 40  /  Part 421  /  Sec. 421.86 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 primary zinc process wastewaters introduced into a POTW shall not exceed the following values:

(a) Subpart H--Zinc Reduction Furnace Wet Air Pollution Control.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of zinc

reduced

--------------Cadmium....................................... .334 .134Zinc.......................................... 1.702 .701------------------------------------------------------------------------

(b) Subpart H--Preleach of Zinc Concentrates.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

concentrate leached

--------------Cadmium....................................... .180 .072Zinc.......................................... .919 .378------------------------------------------------------------------------

(c) Subpart H--Leaching Wet Air Pollution Control.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of zinc

processed through

leaching

--------------Cadmium....................................... .000 .000Zinc.......................................... .000 .000------------------------------------------------------------------------

(d) Subpart H--Electrolyte Bleed Wastewater.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

cathode zinc produced

--------------Cadmium....................................... .086 .035Zinc.......................................... .441 .182------------------------------------------------------------------------

(e) Subpart H--Cathode and Anode Wash Wastewater.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

cathode zinc produced

--------------Cadmium....................................... .150 .060Zinc.......................................... .766 .315------------------------------------------------------------------------

(f) Subpart H--Casting Wet Air Pollution Control.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of zinc

cast

--------------Cadmium....................................... .051 .021Zinc.......................................... .262 .108------------------------------------------------------------------------

(g) Subpart H--Casting Contact Cooling.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of zinc

cast

--------------Cadmium....................................... 0.036 0.014Zinc.......................................... 0.185 0.076------------------------------------------------------------------------

(h) Subpart H--Cadmium Plant Wastewater.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

cadmium produced

--------------Cadmium....................................... 1.234 0.494Zinc.......................................... 6.295 2.592------------------------------------------------------------------------ Sec. 421.87 [Reserved]