40 C.F.R. § 420.104

Current through September 30, 2024

Section 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
TSS	0.00125	0.000626
O&G	0.000522	0.000209
Chromium1	0.0000209	0.0000084
Lead	0.0000094	0.0000031
Nickel1	0.0000188	0.0000063
Zinc	0.0000063	0.0000021
Naphthalene	0.0000021
Tetrachloroethylene	0.0000031
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
TSS	0.00250	0.00125
O&G	0.00104	0.000417
Chromium1	0.0000418	0.0000167
Lead	0.0000188	0.0000063
Nickel1	0.0000376	0.0000125
Zinc	0.0000125	0.0000042
Naphthalene	0.0000042
Tetrachloroethylene	0.0000063
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
TSS	0.0326	0.0163
O&G	0.0136	0.00543
Chromium1	0.000543	0.000217
Lead	0.000244	0.0000814
Nickel1	0.000488	0.000163
Zinc	0.000163	0.0000542
Naphthalene	0.0000542
Tetrachloroethylene	0.0000813
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
TSS	0.00626	0.00313
O&G	0.00261	0.00104
Chromium1	0.000104	0.0000418
Lead	0.0000469	0.0000156
Nickel1	0.0000939	0.0000313
Zinc	0.0000313	0.0000104
Naphthalene	0.0000104
Tetrachloro-ethylene	0.0000156
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
TSS	0.0726	0.0363
O&G	0.0302	0.0121
Chromium1	0.00121	0.000484
Lead	0.000545	0.000182
Nickel1	0.00109	0.000363
Zinc	0.000363	0.000121
Naphthalene	0.000121
Tetrachloro-ethylene	0.000182
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
TSS	0.00125	0.000626
O&G	0.000522	0.000209
Chromium1	0.0000209	0.0000084
Lead	0.0000094	0.0000031
Nickel1	0.0000188	0.0000063
Zinc	0.0000063	0.0000021
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
TSS	0.00125	0.000626
O&G	0.000522	0.000209
Chromium1	0.0000209	0.0000084
Lead	0.0000094	0.0000031
Nickel1	0.0000188	0.0000063
Zinc	0.0000063	0.0000021
Naphthalene	0.0000021
Tetrachloroethylene	0.0000031
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.

40 C.F.R. §420.104

47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984; 49 FR 24726, June 15, 1984