CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS (Parts 400–471) > PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY > SUBPART G—Primary Lead Subcategory (§421.70 to §421.77) > 421.76—Pretreatment standards for new sources.

421.76—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 lead process wastewaters introduced into a POTW shall not exceed the following values.
(a) Subpart G—Sinter Plant Materials Handling Wet Air Pollution Control.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of sinter production
Lead .000 .000
Zinc .000 .000
(b) Subpart G—Blast Furnace Wet Air Pollution Control.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of blast furnace lead bullion produced
Lead .000 .000
Zinc .000 .000
(c) Subpart G—Blast Furnace Slag Granulation.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of blast furnace lead bullion produced
Lead .000 .000
Zinc .000 .000
(d) Subpart G—Dross Reverberatory Slag Granulation.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of slag, speiss, or matte granulated
Lead .000 .000
Zinc .000 .000
(e) Subpart G—Dross Reverberatory Furnace Wet Air Pollution Control.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of dross reverberatory furnace production
Lead .000 .000
Zinc .000 .000
(f) Subpart G—Zinc Fuming Wet Air Pollution Control.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of blast furnace lead bullion produced
Lead .000 .000
Zinc .000 .000
(g) Subpart G—Hard Lead Refining Slag Granulation.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of hard lead produced
Lead .000 .000
Zinc .000 .000
(h) Subpart G—Hard Lead Refining Wet Air Pollution Control.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of hard lead produced
Lead .000 .000
Zinc .000 .000
(i) Subpart G—Facility Washdown.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of lead bullion produced
Lead .000 .000
Zinc .000 .000
(j) Subpart G—Employee Handwash.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of lead bullion produced
Lead .924 .429
Zinc 3.366 1.386
(k) Subpart G—Respirator Wash.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of lead bullion produced
Lead 1.484 .689
Zinc 5.406 2.226
(l) Subpart G—Laundering of Uniforms.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kkg (pounds per billion pounds) of lead bullion produced
Lead 4.340 2.015
Zinc 15.810 6.510