![]() |
Code of Federal Regulations (Last Updated: July 5, 2024) |
![]() |
Title 40 - Protection of Environment |
![]() |
Chapter I - Environmental Protection Agency |
![]() |
SubChapter N - Effluent Guidelines and Standards |
![]() |
Part 421 - Nonferrous Metals Manufacturing Point Source Category |
![]() |
Subpart G - Primary Lead Subcategory |
§ 421.75 - Pretreatment standards for existing sources.
-
§ 421.75 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 mut comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in primary lead process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart G - Sinter Plant Materials Handling Wet Air Pollution Control.
PSES
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kkg (pounds per billion pounds) of sinter production Lead 100.800 46.800 Zinc 367.200 151.200 (b) Subpart G - Blast Furnace Wet Air Pollution Control.
PSES
Pollutant or polluntant property Maximum for any 1 day Maximum for monthly average mg/kkg (pound per billion pounds) of blast furnance lead bullion produced Lead .000 .000 Zinc .000 .000 (c) Subpart G - Blast Furnace Slag Granulation.
PSES
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kkg (pound per billion pounds) of blast furance lead bullion produced Lead .000 .000 Zinc .000 .000 (d) Subpart G - Dross Reverberatory Slag Granulation.
PSES
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 1,612.000 748.400 Zinc 5,872.000 2,418.000 (e) Subpart G - Dross Reverberatory Furnance Wet Air Pollution Control.
PSES
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.
PSES
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.
PSES
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.
PSES
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.
PSES
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.
PSES
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.
PSES
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.
PSES
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