View all text of Subpart Z [§ 421.280 - § 421.287]

§ 421.284 - Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:

(a) Tantalum alloy leach and rinse.

NSPS for the Secondary Tantalum Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of tantalum powder produced Copper295.200140.700 Lead64.57029.980 Nickel126.80085.320 Zinc235.20096.850 Tantalum103.800Total suspended solids3,459.0002,767.000 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(b) Capacitor leach and rinse.

NSPS for the Secondary Tantalum Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of tantalum powder produced from leaching Copper25.86012.320 Lead5.6562.626 Nickel11.1107.474 Zinc20.6008.484 Tantalum9.090Total suspended solids303.000242.400 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(c) Tantalum sludge leach and rinse.

NSPS for the Secondary Tantalum Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced Copper262.800125.200 Lead57.48026.690 Nickel112.90075.960 Zinc209.40086.230 Tantalum92.390Total suspended solids3,080.0002,464.000 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(d) Tantalum powder acid wash and rinse.

NSPS for the Secondary Tantalum Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of tantalum powder produced Copper0.4480.214 Lead0.0980.046 Nickel0.1930.130 Zinc0.3570.147 Tantalum0.158Total suspended solids5.2504.200 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(e) Leaching wet air pollution control.

NSPS for the Secondary Tantalum Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced Copper6.2462.977 Lead1.3660.634 Nickel2.6841.806 Zinc4.9782.050 Tantalum2.196Total suspended solids73.20058.560 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.