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Code of Federal Regulations Title 40. Protection of Environment § 40.421.84 Standards of performance for new sources

Current as of January 02, 2025 | Updated by Findlaw Staff

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

Copper

2.135

1.018

Lead

.467

.217

Zinc

1.702

.701

Total suspended solids

25.020

20.020

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

Copper

1.153

.550

Lead

.252

.117

Zinc

.919

.378

Total suspended solids

13.520

10.810

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 solids

6.480

5.184

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 solids

11.270

9.012

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 solids

3.855

3.084

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 solids

2.715

2.172

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

Cadmium

1.234

.494

Copper

7.899

3.765

Lead

1.728

.802

Zinc

6.295

2.592

Total suspended solids

92.570

74.050

pH

(1)

(1)

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

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Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.421.84 Standards of performance for new sources - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-421-84/

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