40 C.F.R. § 421.74

Current through September 30, 2024

Section 421.74 - Standards of performance for new sources

Any new source subject to this subpart must achieve the following performance standards:

(a) Subpart G-Sinter Plant Materials Handling Wet Air Pollution Control.

NSPS

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
Total suspended solids	.000	.000
pH	(1)	(1)

¹Within the range of 7.5 to 10.0 at all times.

(b) Subpart G-Blast Furnace Wet Air Pollution Control.

NSPS

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
Total suspended solids	.000	.000
pH	(1)	(1)

¹Within the range of 7.5 to 10.0 at all times.

(c) Subpart G-Blast Furnace Slag Granulation.

NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kkg (pounds per billion pounds) of blast furnance lead bullion produced
Lead	.000	.000
Zinc	.000	.000
Total suspended solids	.000	.000
pH	(1)	(1)

¹Within the range of 7.5 to 10.0 at all times.

(d) Subpart G-Dross Reverberatory Slag Granulation.

NSPS

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
Total suspended solids	.000	.000
pH	(1)	(1)

¹Within the range of 7.5 to 10.0 at all times.

(e) Subpart G-Dross Reverberatory Furnace Wet Air Pollution Control.

NSPS

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
Total suspended solids	.000	.000
pH	(1)	(1)

¹Within the range of 7.5 to 10.0 at all times.

(f) Subpart G-Zinc Fuming Wet Air Pollution Control.

NSPS

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
Total suspended solids	.000	.000
pH	(1)	(1)

¹Within the range of 7.5 to 10.0 at all times.

(g) Subpart G-Hard Lead Refining Slag Granulation.

NSPS

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
Total suspended solids	.000	.000
pH	(1)	(1)

¹Within the range of 7.5 to 10.0 at all times.

(h) Subpart G-Hard Lead Refining Wet Air Pollution Control.

NSPS

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
Total suspended solids	.000	.000
pH	(1)	(1)

¹Within the range of 7.5 to 10.0 at all times.

(i) Subpart G-Facility Washdown.

NSPS

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
Total suspended solids	.000	.000
pH	(1)	(1)

Within the range of 7.5 to 10.0 at all times.

(j) Subpart G-Employee Handwash.

NSPS

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
Total suspended solids	49.500	39.600
pH	(1)	(1)

Within the range of 7.5 to 10.0 at all times.

(k) Subpart G-Respirator Wash.

NSPS

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
Total suspended solids	79.500	63.600
pH	(1)	(1)

Within the range of 7.5 to 10.0 at all times.

(l) Subpart G-Laundering of Uniforms.

NSPS

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
Total suspended solids	232.500	186.000
pH	(1)	(1)

Within the range of 7.5 to 10.0 at all times.

40 C.F.R. §421.74

49 FR 8803, Mar. 8, 1984, as amended at 49 FR 29795, July 24, 1984