GroundRules
40 CFR 420.107: Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).
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 J—Cold Forming Subcategory
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 conventional technology.
(a) Cold rolling mills—(1) Recirculation—single stand.
Subpart J
Pollutant or pollutant property BCT 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 0.00125 0.000626
O&G 0.000522 0.000209
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(2) Recirculation—multiple stands.
Subpart J
Pollutant or pollutant property BCT 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 0.00626 0.00313
O&G 0.00261 0.00104
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(3) Combination.
Subpart J
Pollutant or pollutant property BCT 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 0.0751 0.0376
O&G 0.0313 0.0125
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(4) Direct application—single stand.
Subpart J
Pollutant or pollutant property BCT 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 0.0225 0.0113
O&G 0.00939 0.00376
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(5) Direct application—multiple stands.
Subpart J
Pollutant or pollutant property BCT 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 0.100 0.0501
O&G 0.0417 0.0167
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(b) Cold worked pipe and tube—(1) Using water.
Subpart J
Pollutant or pollutant property BCT 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 0.00125 0.000626
O&G 0.000522 0.000209
pH (1) (1)
1 Within the range of 6.0 to 9.0
(2) Using oil solutions.
Subpart J
Pollutant or pollutant property BCT 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 0.00125 0.000626
O&G 0.000522 0.000209
pH (1) (1)
1 Within the range of 6.0 to 9.0
Collected 2026-08-27T02:26:04Z. Source file · JSON