40 C.F.R. § 421.75

Current through September 30, 2024

Section 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

40 C.F.R. §421.75