40 C.F.R. § 421.84

Current through October 31, 2024
Section 421.84 - Standards of performance for new sources

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

(a) Subpart H-Zinc Reduction Furnace Wet Air Pollution Control.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zinc reduced
Cadmium.334.134
Copper2.1351.018
Lead.467.217
Zinc1.702.701
Total suspended solids25.02020.020
pH(1)(1)

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

(b) Subpart H-Preleach of Zinc Concentrates.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of concentrate leached
Cadmium.180.072
Copper1.153.550
Lead.252.117
Zinc.919.378
Total suspended solids13.52010.810
pH(1)(1)

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

(c) Subpart H-Leaching Wet Air Pollution Control.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zinc processed through leaching
Cadmium.000.000
Copper.000.000
Lead.000.000
Zinc.000.000
Total suspended solids.000.000
pH(1)(1)

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

(d) Subpart H-Electrolyte Bleed Wastewater.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of cathode zinc produced
Cadmium.086.035
Copper.553.264
Lead.121.056
Zinc.441.182
Total suspended solids6.4805.184
pH(1)(1)

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

(e) Subpart H-Cathode and Anode Wash Wastewater.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of cathode zinc produced
Cadmium.150.060
Copper.961.458
Lead.210.098
Zinc.766.315
Total suspended solids11.2709.012
pH(1)(1)

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

(f) Subpart H-Casting Wet Air Pollution Control.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zinc cast
Cadmium.051.021
Copper.329.157
Lead.072.033
Zinc.262.108
Total suspended solids3.8553.084
pH(1)(1)

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

(g) Subpart H-Casting Contact Cooling.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zinc cast
Cadmium.036.014
Copper.232.110
Lead.051.024
Zinc.185.076
Total suspended solids2.7152.172
pH(1)(1)

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

(h) Subpart H-Cadmium Plant Wastewater.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of cadmium produced
Cadmium1.234.494
Copper7.8993.765
Lead1.728.802
Zinc6.2952.592
Total suspended solids92.57074.050
pH(1)(1)

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

40 C.F.R. §421.84

49 FR 8808, Mar. 8, 1984; 49 FR 26739, June 29, 1984, as amended at 49 FR 29795, July 24, 1984