40 CFR 420.74 - New source performance standards (NSPS).

§ 420.74 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) Primary mills, carbon and specialty—
(1) Without scarfing.
Subpart G
Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0.
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.0150 0.00563
O&G 0.00373
pH (1) (1)
(2) With scarfing.
Subpart G
Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0.
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.0234 0.00876
O&G 0.00584
pH (1) (1)
(b) Section mills—
(1) Carbon.
Subpart G
Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0.
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.0334 0.0125
O&G 0.00834
pH (1) (1)
(2) Specialty.
Subpart G
Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0.
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.0217 0.00813
O&G 0.00542
pH (1) (1)
(c) Flat mills—
(1) Hot strip and sheet mills, carbon and specialty.
Subpart G
Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0
Kg/kkg (pounds per 1,000 lb) of products
TSS 0.0435 0.0163
O&G 0.0109
pH (1) (1)
(2) Carbon plate mills.
Subpart G
Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0
Kg/kkg (pounds per 1,000 lb) of products
TSS 0.0234 0.00876
O&G 0.00584
pH (1) (1)
(3) Specialty plate mills.
Subpart G
Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0
Kg/kkg (pounds per 1,000 lb) of products
TSS 0.0100 0.00375
O&G 0.00250
pH (1) (1)
(d) Pipe and tube mills, carbon and specialty.
Subpart G
Pollutant or pollutant property New source performance standards
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0
Kg/kkg (pounds per 1,000 lb) of products
TSS 0.0369 0.0138
O&G 0.00917
pH (1) (1)

Title 40 published on 2014-07-01

no entries appear in the Federal Register after this date.

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