Regulations last checked for updates: Nov 24, 2024

Title 40 - Protection of Environment last revised: Nov 21, 2024
All TitlesTitle 40Chapter IPart 420Subpart J - Subpart J—Cold Forming Subcategory
Collapse to view only § 420.100 - Applicability; description of the cold forming subcategory.
Table of Contents

§ 420.100 - Applicability; description of the cold forming subcategory.

§ 420.101 - Specialized definitions.

§ 420.102 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

§ 420.103 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

§ 420.104 - New source performance standards (NSPS).

§ 420.105 - Pretreatment standards for existing sources (PSES).

§ 420.106 - Pretreatment standards for new sources (PSNS).

§ 420.107 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).

§ 420.100 - Applicability; description of the cold forming subcategory.

(a) The provisions of this subpart are applicable to discharges and to the introduction of pollutants into publicly owned treatment works from cold rolling and cold working pipe and tube operations in which unheated steel is passed through rolls or otherwise processed to reduce its thickness, to produce a smooth surface, or to develop controlled mechanical properties in the steel.

(b) The limitations and standards set out below for cold worked pipe and tube operations shall be applicable only where cold worked pipe and tube wastewaters are discharged at steel plant sites. No limitations are applicable or allowable where these wastewaters are hauled off-site for disposal or are otherwise not discharged at steel plant sites. The limitations and standards set out below for cold worked pipe and tube operations shall be applicable only to the blowdown of soluble oil or water solutions used in cold worked pipe and tube forming operations. Limitations for other wastewater sources from these operations must be established on a site-specific basis.

[47 FR 23284, May 27, 1982, as amended at 49 FR 21034, May 17, 1984]
§ 420.101 - Specialized definitions.

(a) The term recirculation means those cold rolling operations which include recirculation of rolling solutions at all mill stands.

(b) The term combination means those cold rolling operations which include recirculation of rolling solutions at one or more mill stands, and once-through use of rolling solutions at the remaining stand or stands.

(c) The term direct application means those cold rolling operations which include once-through use of rolling solutions at all mill stands.

(d) The term single stand means those recirculation or direct application cold rolling mills which include only one stand of work rolls.

(e) The term multiple stands means those recirculation or direct application cold rolling mills which include more than one stand of work rolls.

(f) The term cold worked pipe and tube means those cold forming operations that process unheated pipe and tube products using either water or oil solutions for cooling and lubrication.

§ 420.102 - 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) Cold rolling mills—(1) Recirculation—single stand.

Subpart J

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
TSS0.001250.000626
O&G0.0005220.000209
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

(2) Recirculation—multiple stands.

Subpart J

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
TSS0.006260.00313
O&G0.002610.00104
Chromium 10.0001040.0000418
Lead0.00004690.0000156
Nickel 10.00009390.0000313
Zinc0.00003130.0000104
Naphthalene0.0000104
Tetrachloroethylene0.0000156
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

(3) Combination.

Subpart J

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
TSS0.07510.0376
O&G0.03130.0125
Chromium 10.001250.000501
Lead0.0005630.000188
Nickel 10.001130.000376
Zinc0.0003760.000125
Naphthalene0.000125
Tetrachloroethylene0.000188
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are cotreated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

(4) Direct application—single stand.

Subpart J

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
TSS0.02250.0113
O&G0.009390.00376
Chromium 10.0003760.000150
Lead0.0001690.0000563
Nickel 10.0003380.000113
Zinc0.0001130.0000376
Naphthalene0.0000376
Tetrachloroethylene0.0000563
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

(5) Direct application—multiple stands.

Subpart J

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
TSS0.1000.0501
O&G0.04170.0167
Chromium 10.001670.000668
Lead0.0007510.000250
Nickel 10.001500.000501
Zinc0.0005010.000167
Naphthalene0.000167
Tetrachloroethylene0.000250
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

(b) Cold worked pipe and tube—(1) Using water.

Subpart J

Pollutant of 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
TSS0.001250.000626
O&G0.0005220.000209
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

(2) Using oil solutions.

Subpart J

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
TSS0.001250.000626
O&G0.0005220.000209
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

[47 FR 23284, May 27, 1982, as amended at 49 FR 21034, May 17, 1984; 49 FR 24726, June 15, 1984]
§ 420.103 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

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 available technology economically achievable.

(a) Cold rolling mills—(1) Recirculation—single stand.

Subpart J

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(2) Recirculation—multiple stands.

Subpart J

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.0001040.0000418
Lead0.00004690.0000156
Nickel 10.00009390.0000313
Zinc0.00003130.0000104
Naphthalene0.0000104
Tetrachloroethylene0.0000156

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(3) Combination.

Subpart J

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.001250.000501
Lead0.0005630.000188
Nickel 10.001130.000376
Zinc0.0003760.000125
Naphthalene0.000125
Tetrachloroethylene0.000188

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are cotreated with descaling or combination acid pickling wastewaters.

(4) Direct application—single stand.

Subpart J

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.0003760.000150
Lead0.0001690.0000563
Nickel 10.0003380.000113
Zinc0.0001130.0000376
Naphthalene0.0000376
Tetrachloroethylene0.0000563

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(5) Direct application—multiple stands.

Subpart J

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.001670.000668
Lead0.0007510.000250
Nickel 10.001500.000501
Zinc0.0005010.000167
Naphthalene0.000167
Tetrachloroethylene0.000250

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(b) Cold worked pipe and tube—(1) Using water.

Subpart J

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters.

(2) Using oil solutions.

Subpart J

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters.

[47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984]
§ 420.104 - 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) Cold rolling mills—(1) Recirculation—single stand.

Subpart J

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
TSS0.001250.000626
O&G0.0005220.000209
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are cotreated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

(2) Recirculation—multiple stands.

Subpart J

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
TSS0.002500.00125
O&G0.001040.000417
Chromium 10.00004180.0000167
Lead0.00001880.0000063
Nickel 10.00003760.0000125
Zinc0.00001250.0000042
Naphthalene0.0000042
Tetrachloroethylene0.0000063
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

(3) Combination.

Subpart J

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
TSS0.03260.0163
O&G0.01360.00543
Chromium 10.0005430.000217
Lead0.0002440.0000814
Nickel 10.0004880.000163
Zinc0.0001630.0000542
Naphthalene0.0000542
Tetrachloroethylene0.0000813
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastwaters are treated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

(4) Direct application—single stand.

Subpart J

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
TSS0.006260.00313
O&G0.002610.00104
Chromium 10.0001040.0000418
Lead0.00004690.0000156
Nickel 10.00009390.0000313
Zinc0.00003130.0000104
Naphthalene0.0000104
Tetrachloro-ethylene0.0000156
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling watewaters.

2 Within the range of 6.0 to 9.0.

(5) Direct application—multiple stands.

Subpart J

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
TSS0.07260.0363
O&G0.03020.0121
Chromium 10.001210.000484
Lead0.0005450.000182
Nickel 10.001090.000363
Zinc0.0003630.000121
Naphthalene0.000121
Tetrachloro-ethylene0.000182
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling watewaters.

2 Within the range of 6.0 to 9.0.

(b) Cold worked pipe and tube mills—(1) Using water.

Subpart J

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
TSS0.001250.000626
O&G0.0005220.000209
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are cotreated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

(2) Using oil solutions.

Subpart J

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
TSS0.001250.000626
O&G0.0005220.000209
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031
pH( 2)( 2)

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are cotreated with descaling or combination acid pickling wastewaters.

2 Within the range of 6.0 to 9.0.

[47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984; 49 FR 24726, June 15, 1984]
§ 420.105 - Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources.

(a) Cold rolling—(1) Recirculation—single stand.

Subpart J

Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(2) Recirculation—multiple stands.

Subpart J

Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.0001040.0000418
Lead0.00004690.0000156
Nickel 10.00009390.0000313
Zinc0.00003130.0000104
Naphthalene0.0000104
Tetrachloroethylene0.0000156

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(3) Combination.

Subpart J

Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.001250.000501
Lead0.0005630.000188
Nickel 10.001130.000376
Zinc0.0003760.000125
Naphthalene0.000125
Tetrachloroethylene0.000188

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(4) Direct application—single stand.

Subpart J

Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.0003760.000150
Lead0.0001690.0000563
Nickel 10.0003380.000113
Zinc0.0001130.0000376
Naphthalene0.0000376
Tetrachloroethylene0.0000563

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(5) Direct application—multiple stands.

Subpart J

Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.001670.000668
Lead0.0007510.000250
Nickel 10.001500.000501
Zinc0.0005010.000167
Napthalene0.000167
Tetrachloroethylene0.000250

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(b) Cold worked pipe and tube mills—(1) Using water.

Subpart J

Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
kg/kkg (pounds per 1,000 lb) of product
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters.

(2) Using oil solutions.

Subpart J

Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
kg/kkg (pounds per 1,000 lb) of product
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters.

[47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984]
§ 420.106 - Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.

(a) Cold rolling—(1) Recirculation—single stand.

Subpart J

Pollutant or pollutant property Pretreatment standards for new sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(2) Recirculation—multiple stands.

Subpart J

Pollutant or pollutant property Pretreatment standards for new sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.00004180.0000167
Lead0.00001880.0000063
Nickel 10.00003760.0000125
Zinc0.00001250.0000042
Naphthalene0.0000042
Tetrachloroethylene0.0000063

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(3) Combination.

Subpart J

Pollutant or pollutant property Pretreatment standards for new sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
Chromium 10.0005430.000217
Lead0.0002440.0000814
Nickel 10.0004880.000163
Zinc0.0001630.0000542
Naphthalene0.0000542
Tetrachloroethylene0.0000813

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(4) Direct application—single stand.

Subpart J

Pollutant or pollutant property Pretreatment standards for new sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg pounds per 1,000 lb) of product
Chromium 1 0.0001040.0000418
Lead0.00004690.0000156
Nickel 1 0.00009390.0000313
Zinc0.00003130.0000104
Naphthalene0.0000104
Tetrachloroethylene0.0000156

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(5) Direct application—multiple stands.

Subpart J

Pollutant or pollutant property Pretreatment standards for new sources
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg pounds per 1,000 lb) of product
Chromium 1 0.001210.000484
Lead0.0005450.000182
Nickel 1 0.001090.000363
Zinc0.0003630.000121
Naphthalene0.000121
Tetrachloroethylene0.000182

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

(b) Cold worked pipe and tube mills—(1) Using water.

Subpart J

Pollutant or pollutant property Pretreatment standards for new sources
Maximum for any one day Average of daily values for 30 consecutive days
kg/kkg (pounds per 1,000 lb) of product
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters.

(2) Using oil solutions.

Subpart J

Pollutant or pollutant property Pretreatment standards for new sources
Maximum for any one day Average of daily values for 30 consecutive days
kg/kkg (pound per 1,000 lb) of product
Chromium 10.00002090.0000084
Lead0.00000940.0000031
Nickel 10.00001880.0000063
Zinc0.00000630.0000021
Naphthalene0.0000021
Tetrachloroethylene0.0000031

1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewasters.

[47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984]
§ 420.107 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).

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
TSS0.001250.000626
O&G0.0005220.000209
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
TSS0.006260.00313
O&G0.002610.00104
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
TSS0.07510.0376
O&G0.03130.0125
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
TSS0.02250.0113
O&G0.009390.00376
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
TSS0.1000.0501
O&G0.04170.0167
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
TSS0.001250.000626
O&G0.0005220.000209
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
TSS0.001250.000626
O&G0.0005220.000209
pH( 1)( 1)

1 Within the range of 6.0 to 9.0

[47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984]
authority: 33 U.S.C. 1311,1314,1316,1317,1318,1342,and
source: 47 FR 23284, May 27, 1982, unless otherwise noted.
cite as: 40 CFR 420.100
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