Wis. Admin. Code NR § 274.312

Current through May 28, 2024
Section NR 274.312 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

Except as provided in 40 CFR 125.30 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BPT:

Table 31-1

Secondary Tungsten and Cobalt Tungsten Detergent Wash and Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of tungsten scrap washed

Copper

0.371

0.195

Nickel

0.374

0.248

Ammonia (as N)

25.990

11.430

Cobalt

0.768

0.337

Tungsten

1.357

0.542

Oil and grease

3.900

2.340

Total suspended solids

7.995

3.803

pH

(1)

(1)

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

Table 31-2

Secondary Tungsten and Cobalt Tungsten Leaching Acid

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of tungsten produced

Copper

4.885

2.571

Nickel

4.937

3.365

Ammonia (as N)

342.700

150.700

Cobalt

10.130

4.448

Tungsten

17.890

7.147

Oil and grease

51.420

30.850

Total suspended solids

105.400

50.140

pH

(1)

(1)

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

Table 31-3

Secondary Tungsten and Cobalt Tungsten Post Leaching Wash and Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of tungsten produced

Copper

9.772

5.143

Nickel

9.875

6.532

Ammonia (as N)

685.600

301.400

Cobalt

20.263

8.897

Tungsten

35.800

14.300

Oil and grease

102.900

61.720

Total suspended solids

210.900

100.300

pH

(1)

(1)

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

Table 31-4

Secondary Tungsten and Cobalt Synthetic Scheelite Filtrate

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of synthetic scheelite produced

Copper

31.660

16.660

Nickel

31.990

21.160

Ammonia (as N)

2,221.000

976.300

Cobalt

65.644

28.824

Tungsten

116.000

46.320

Oil and grease

333.200

200.000

Total suspended solids

683.000

324.900

pH

(1)

(1)

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

Table 31-5

Secondary Tungsten and Cobalt Tungsten Carbide Leaching Wet Air Pollution Control

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of tungsten carbide scrap leached

Copper

3.327

1.751

Nickel

3.362

2.224

Ammonia (as N)

233.400

102.600

Cobalt

6.899

3.039

Tungsten

12.190

4.868

Oil and grease

35.020

21.010

Total suspended solids

71.790

34.150

pH

(1)

(1)

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

Table 31-6

Secondary Tungsten and Cobalt Tungsten Carbide Wash Water

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of tungsten carbide produced

Copper

15.830

8.333

Nickel

16.000

10.580

Ammonia (as N)

1,111.000

488.300

Cobalt

32.832

14.146

Tungsten

58.000

23.170

Oil and grease

166.700

100.000

Total suspended solids

341.700

162.500

pH

(1)

(1)

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

Table 31-7

Secondary Tungsten and Cobalt Cobalt Sludge Leaching Wet Air Pollution Control BPT Effluent Limitations

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of cobalt produced from cobalt sludge

Copper

67.990

35.780

Nickel

68.700

45.440

Ammonia (as N)

4,770.000

2,097.000

Cobalt

140.977

61.901

Tungsten

249.000

99.470

Oil and grease

715.600

429.400

Total suspended solids

1,467.000

697.700

pH

(1)

(1)

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

Table 31-8

Secondary Tungsten and Cobalt Crystallization Decant

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

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of cobalt produced

Copper

79.140

41.650

Nickel

79.970

52.900

Ammonia (as N)

5,552.000

2,441.000

Cobalt

164.101

72.055

Tungsten

289.900

115.800

Oil and grease

833.000

499.800

Total suspended solids

1,708.000

812.200

pH

(1)

(1)

Table 31-9

Secondary Tungsten and Cobalt Acid Wash Decant

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of cobalt produced

Copper

36.220

19.060

Nickel

36.600

24.210

Ammonia (as N)

2,541.000

1,117.000

Cobalt

75.104

32.977

Tungsten

132.700

52.990

Oil and grease

381.300

228.800

Total suspended solids

781.600

371.700

pH

(1)

(1)

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

Table 31-10

Secondary Tungsten and Cobalt Cobalt Hydroxide Filtrate

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of cobalt produced

Copper

107.600

56.650

Nickel

108.800

71.940

Ammonia (as N)

7,551.000

3,320.000

Cobalt

223.189

97.999

Tungsten

394.300

157.500

Oil and grease

1,133.000

679.800

Total suspended solids

2,323.000

1,105.000

pH

(1)

(1)

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

Table 31-11

Secondary Tungsten and Cobalt Cobalt Hydroxide Filter Cake Wash

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of cobalt produced

Copper

207.200

109.100

Nickel

209.400

138.500

Ammonia (as N)

14,530.000

6,389.000

Cobalt

429.598

188.631

Tungsten

758.900

303.100

Oil and grease

2,181.000

1,309.000

Total suspended solids

4,471.000

2,126.000

pH

(1)

(1)

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

Wis. Admin. Code Department of Natural Resources § NR 274.312

Cr. Register, March, 1991, No. 423, eff. 4-1-91.