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

40 CFR 420.12: Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
(a) By-product cokemaking—iron and steel.
Subpart A
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.253 0.131
O&G 0.0327 0.0109
Ammonia-N 0.274 0.0912
Cyanide 0.0657 0.0219
Phenols (4AAP) 0.00451 0.00150
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(1) Increased loadings, not to exceed 11 percent of the above limitations, are allowed for by-product coke plants which have wet desulfurization systems but only to the extent such systems generate an increased effluent volume.
(2) Increased loadings, not to exceed 27 percent of the above limitations, are allowed for by-product coke plants which include indirect ammonia recovery systems but only to the extent that such systems generate an increased effluent volume.
(b) By-product cokemaking—merchant.
Subpart A
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.270 0.140
O&G 0.0349 0.0116
Ammonia-N 0.292 0.0973
Cyanide 0.0701 0.0234
Phenols (4AAP) 0.00481 0.00160
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(1) Increased loadings, not to exceed 10 percent of the above limitations, are allowed for by-product coke plants which have wet desulfurization systems but only to the extent such systems generate an increased effluent volume.
(2) Increased loadings, not to exceed 25 percent of the above limitations, are allowed for by-product coke plants which include indirect ammonia recovery systems but only to the extent that such systems generate an increased effluent volume.
(c) Cokemaking—non-recovery. Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this segment must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT): There shall be no discharge of process wastewater pollutants to waters of the U.S.

Where this section sits in the code

Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS
PART 420—IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY
Subpart A—Cokemaking Subcategory

(a) By-product cokemaking—iron and steel.

Subpart A

Pollutant or pollutant property BPT effluent limitations

Maximum for any 1 day Average of daily values for 30 consecutive days

Kg/kkg (pounds per 1,000 lb) of product

TSS 0.253 0.131

O&G 0.0327 0.0109

Ammonia-N 0.274 0.0912

Cyanide 0.0657 0.0219

Phenols (4AAP) 0.00451 0.00150

pH (1) (1)

1 Within the range of 6.0 to 9.0.

(1) Increased loadings, not to exceed 11 percent of the above limitations, are allowed for by-product coke plants which have wet desulfurization systems but only to the extent such systems generate an increased effluent volume.

(2) Increased loadings, not to exceed 27 percent of the above limitations, are allowed for by-product coke plants which include indirect ammonia recovery systems but only to the extent that such systems generate an increased effluent volume.

(b) By-product cokemaking—merchant.

Subpart A

Pollutant or pollutant property BPT effluent limitations

Maximum for any 1 day Average of daily values for 30 consecutive days

Kg/kkg (pounds per 1,000 lb) of product

TSS 0.270 0.140

O&G 0.0349 0.0116

Ammonia-N 0.292 0.0973

Cyanide 0.0701 0.0234

Phenols (4AAP) 0.00481 0.00160

pH (1) (1)

1 Within the range of 6.0 to 9.0.

(1) Increased loadings, not to exceed 10 percent of the above limitations, are allowed for by-product coke plants which have wet desulfurization systems but only to the extent such systems generate an increased effluent volume.

(2) Increased loadings, not to exceed 25 percent of the above limitations, are allowed for by-product coke plants which include indirect ammonia recovery systems but only to the extent that such systems generate an increased effluent volume.

(c) Cokemaking—non-recovery. Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this segment must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT): There shall be no discharge of process wastewater pollutants to waters of the U.S.

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

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