Wis. Admin. Code Department of Natural Resources § NR 274.264 - New source performance standards

Current through March 28, 2022

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

Table 26-29

Secondary Precious Metals Furnace Wet Air Pollution Control

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of precious metals,

including silver, incinerated or

smelted

Copper

5.760

2.745

Cyanide

0.900

0.360

Zinc

4.590

1.890

Combined metals

1.350

Ammonia (as N)

599.900

263.700

Total suspended solids

67.500

54.000

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-30

Secondary Precious Metals Raw Material Granulation

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of precious metal in the granulated raw material

Copper

0.819

0.390

Cyanide

0.128

0.051

Zinc

0.653

0.269

Combined metals

0.192

Ammonia (as N)

85.310

37.500

Total suspended solids

9.600

7.680

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-31

Secondary Precious Metals Spent Plating Solutions

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/liter of spent plating solution used as a raw material

Copper

1.280

0.610

Cyanide

0.200

0.080

Zinc

1.020

0.420

Combined metals

0.300

Ammonia (as N)

133.300

58.600

Total suspended solids

15.000

12.000

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-32

Secondary Precious Metals Spent Cyanide Stripping Solutions

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of gold produced by cyanide stripping

Copper

4.736

2.257

Cyanide

0.740

0.296

Zinc

3.774

1.554

Combined metals

1.110

Ammonia (as N)

493.200

216.800

Total suspended solids

55.500

44.400

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-33

Secondary Precious Metals Refinery Wet Air Pollution Control(1)

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of precious metals,

including silver, produced in the

refinery

Copper

1.280

0.610

Cyanide

0.200

0.080

Zinc

1.020

0.420

Combined metals

0.300

Ammonia (as N)

133.300

58.600

Total suspended solids

15.000

12.000

pH

(2)

(2)

w

(1) This allowance applies to either acid or alkaline wet air pollution control scrubbers. If both acid and alkaline wet air pollution control scrubbers are present in a particular facility, the same allowance applies to each.

(2) Within the range of 7.5 to 10 at all times.

Table 26-34

Secondary Precious Metals Gold Solvent Extraction Raffinate and Wash Water

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of gold produced by solvent extraction

Copper

0.806

0.384

Cyanide

0.126

0.050

Zinc

0.643

0.265

Combined metals

0.189

Ammonia (as N)

83.980

36.920

Total suspended solids

9.450

7.560

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-35

Secondary Precious Metals Gold Spent Electrolyte

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of gold produced by electrolysis

Copper

0.011

0.005

Cyanide

0.002

0.001

Zinc

0.009

0.004

Combined metals

0.003

Ammonia (as N)

1.160

0.510

Total suspended solids

0.131

0.104

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-36

Secondary Precious Metals Gold Precipitation and Filtration

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of gold precipitated

Copper

5.632

2.684

Cyanide

0.880

0.352

Zinc

4.488

1.848

Combined metals

1.320

Ammonia (as N)

586.500

257.800

Total suspended solids

66.000

52.800

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-37

Secondary Precious Metals Platinum Precipitation and Filtration

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of platinum precipitated

Copper

6.656

3.172

Cyanide

1.040

0.416

Zinc

5.304

2.184

Combined metals

1.560

Ammonia (as N)

693.200

304.700

Total suspended solids pH

78.000 (1)

62.400 (1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-38

Secondary Precious Metals Palladium Precipitation and Filtration

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of palladium precipitated

Copper

7.680

3.660

Cyanide

1.200

0.480

Zinc

6.120

2.520

Combined metals

1.800

Ammonia (as N)

799.800

351.600

Total suspended solids

90.000

72.000

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-39

Secondary Precious Metals Other Platinum Group Metals Precipitation and Filtration

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of other platinum group metals precipitated

Copper

6.656

3.172

Cyanide

1.040

0.416

Zinc

5.304

2.184

Combined metals

1.560

Ammonia (as N)

693.200

304.700

Total suspended solids

78.000

62.400

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-40

Secondary Precious Metals Spent Solution for PGC Salt Production

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of gold contained in PGC product

Copper

1.152

0.549

Cyanide

0.180

0.072

Zinc

0.918

0.378

Combined metals

0.270

Ammonia (as N)

120.000

52.740

Total suspended solids

13.500

10.800

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-41

Secondary Precious Metals Equipment and Floor Wash

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of precious metals, including silver, produced in the refinery

Copper

0.000

0.000

Cyanide

0.000

0.000

Zinc

0.000

0.000

Combined metals

0.000

Ammonia (as N)

0.000

0.000

Total suspended solids

0.000

0.000

pH

(1)

(1)

(1) Within the range of 7.5 to 10 at all times.

Table 26-42

Secondary Precious Metals Preliminary Treatment

NSPS

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/troy ounce of total precious

metals produced through this

operation

Copper

64.000

50.000

Cyanide

10.000

6.000

Zinc

51.000

30.500

Ammonia (as N)

6,665.000

2,930.000

Combined metals

15.000

Total suspended solids

750.000

600.000

pH

(1)

(1)

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

Notes

Wis. Admin. Code Department of Natural Resources § NR 274.264
Cr. Register, March, 1991, No. 423, eff. 4-1-91.

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