Regulations last checked for updates: May 17, 2024

Title 40 - Protection of Environment last revised: May 15, 2024
§ 420.44 - New source performance standards (NSPS).

The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below.

(a) Basic oxygen furnace steelmaking—semi-wet; and electric arc furnace steelmaking—semi-wet. No discharge of process wastewater pollutants to navigable waters.

(b) Basic oxygen furnace steelmaking—wet-suppressed combustion.

Subpart D

Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS0.01460.00522
Lead0.0001880.0000626
Zinc0.0002820.0000939
pH( 1) ( 1)

1 Within the range of 6.0 to 9.0.

(c) Basic oxygen furnace steelmaking—wet open combustion; and electric arc furnace steelmaking—wet.

Subpart D

Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS0.03210.0115
Lead0.0004130.000138
Zinc0.0006200.000207
pH( 1)( 1)

1 Within the range of 6.0 to 9.0.

[47 FR 23284, May 27, 1982, as amended at 67 FR 64267, Oct. 17, 2002]
source: 47 FR 23284, May 27, 1982, unless otherwise noted.
cite as: 40 CFR 420.44