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Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 420.44: New source performance standards (NSPS).

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Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS
  4. PART 420—IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY
  5. Subpart D—Steelmaking Subcategory

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

TSS 0.0146 0.00522

Lead 0.000188 0.0000626

Zinc 0.000282 0.0000939

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

TSS 0.0321 0.0115

Lead 0.000413 0.000138

Zinc 0.000620 0.000207

pH (1) (1)

1 Within the range of 6.0 to 9.0.

Collected 2026-08-27T02:26:04Z. Source file · JSON

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