40 C.F.R. § 421.284

Current through September 30, 2024
Section 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
Tantalum103.800
Total 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
Tantalum9.090
Total 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
Tantalum92.390
Total 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
Tantalum0.158
Total 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
Tantalum2.196
Total suspended solids73.20058.560
pH(1)(1)

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

40 C.F.R. §421.284