Wis. Admin. Code Department of Natural Resources NR 273.032

Current through October 28, 2024
Section NR 273.032 - 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 3-1

Nickel-Cobalt

Rolling Spent Emulsions

BPT

Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with emulsions

Chromium

0.075

0.031

Nickel

0.327

0.216

Fluoride

10.1

4.49

Oil and grease

3.4

2.04

Total suspended solids

6.97

3.32

pH

(1)

(1)

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

Table 3-2

Nickel-Cobalt

Rolling Contact Cooling Water

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with water

Chromium

1.66

0.679

Nickel

7.24

4.79

Fluoride

225

99.6

Oil and grease

75.4

45.3

Total suspended solids

155

73.5

pH

(1)

(1)

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

Table 3-3

Nickel-Cobalt

Drawing Spent Emulsions

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt drawn with emulsions

Chromium

0.042

0.017

Nickel

0.183

0.121

Fluoride

5.68

2.53

Oil and grease

1.91

1.15

Total suspended solids

3.91

1.86

pH

(1)

(1)

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

Table 3-4

Nickel-Cobalt

Extrusion Press or Solution Heat Treatment

Contact Cooling Water

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt heat treated

Chromium

0.037

0.015

Nickel

0.160

0.106

Fluoride

4.95

2.20

Oil and grease

1.67

0.999

Total suspended solids

3.41

1.63

pH

(1)

(1)

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

Table 3-5

Nickel-Cobalt

Extrusion Press Hydraulic Fluid Leakage

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt extruded

Chromium

0.102

0.042

Nickel

0.446

0.295

Fluoride

13.8

6.13

Oil and grease

4.64

2.79

Total suspended solids

9.51

4.53

pH

(1)

(1)

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

Table 3-6

Nickel-Cobalt

Forging Equipment Cleaning Wastewater

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.018

0.007

Nickel

0.077

0.051

Fluoride

2.38

1.06

Oil and grease

0.800

0.480

Total suspended solids

1.640

0.780

pH

(1)

(1)

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

Table 3-7

Nickel-Cobalt

Forging Contact Cooling Water

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of forged nickel-cobalt cooled with water

Chromium

0.209

0.086

Nickel

0.910

0.602

Fluoride

28.2

12.5

Oil and grease

9.48

5.69

Total suspended solids

19.5

9.25

pH

(1)

(1)

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

Table 3-8

Nickel-Cobalt

Forging Press Hydraulic Fluid Leakage

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium

0.083

0.034

Nickel

0.359

0.238

Fluoride

11.2

4.94

Oil and grease

3.74

2.25

Total suspended solids

7.67

3.65

pH

(1)

(1)

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

Table 3-9

Nickel-Cobalt

Stationary Casting Contact Cooling Water

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt cast by stationary methods

Chromium

5.33

2.18

Nickel

23.3

15.4

Fluoride

720

320

Oil and grease

242

145

Total suspended solids

496

236

pH

(1)

(1)

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

Table 3-10

Nickel-Cobalt

Metal Powder Production Atomization Wastewater

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt metal powder atomized

Chromium

1.16

0.472

Nickel

5.03

3.33

Fluoride

156

69.2

Oil and grease

52.4

31.5

Total suspended solids

108

51.1

pH

(1)

(1)

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

Table 3-11

Nickel-Cobalt

Wet Air Pollution Control Scrubber Blowdown

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.357

0.146

Nickel

1.56

1.03

Fluoride

48.2

21.4

Oil and grease

16.2

9.72

Total suspended solids

33.2

15.8

pH

(1)

(1)

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

Table 3-12

Nickel-Cobalt

Surface Treatment Spent Baths

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

0.412

0.169

Nickel

1.8

1.19

Fluoride

55.7

24.7

Oil and grease

18.7

11.2

Total suspended solids

38.4

18.3

pH

(1)

(1)

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

Table 3-13

Nickel-Cobalt

Surface Treatment Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium

10.4

4.25

Nickel

45.3

30.0

Fluoride

1410

623

Oil and grease

472

283

Total suspended solids

968

460

pH

(1)

(1)

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

Table 3-14

Nickel-Cobalt

Alkaline Cleaning Spent Baths

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

0.015

1.52

Nickel

16.2

10.7

Fluoride

502

223

Oil and grease

169

101

Total suspended solids

346

165

pH

(1)

(1)

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

Table 3-15

Nickel-Cobalt

Alkaline Cleaning Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium

1.03

0.420

Nickel

4.48

2.96

Fluoride

139

61.5

Oil and grease

46.6

28.0

Total suspended solids

95.6

45.5

pH

(1)

(1)

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

Table 3-16

Nickel-Cobalt

Molten Salt Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with molten salt

Chromium

3.72

1.52

Nickel

16.2

10.7

Fluoride

502

223

Oil and grease

169

101

Total suspended solids

346

165

pH

(1)

(1)

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

Table 3-17

Nickel-Cobalt

Ammonia Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with ammonia solution

Chromium

0.007

0.003

Nickel

0.029

0.019

Fluoride

0.881

0.391

Oil and grease

0.296

0.178

Total suspended solids

0.607

0.289

pH

(1)

(1)

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

Table 3-18

Nickel-Cobalt

Sawing or Grinding Spent Emulsions

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt sawed or ground with emulsions

Chromium

0.018

0.007

Nickel

0.076

0.050

Fluoride

2.35

1.04

Oil and grease

0.788

0.473

Total suspended solids

1.62

0.769

pH

(1)

(1)

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

Table 3-19

Nickel-Cobalt

Sawing or Grinding Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of sawed or ground nickel-cobalt rinsed

Chromium

0.797

0.326

Nickel

3.48

2.30

Fluoride

108

47.8

Oil and grease

36.2

21.7

Total suspended solids

74.2

35.3

pH

(1)

(1)

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

Table 3-20

Nickel-Cobalt

Steam Cleaning Condensate

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt steam cleaned

Chromium

0.013

0.006

Nickel

0.058

0.039

Fluoride

1.79

0.795

Oil and grease

0.602

0.361

Total suspended solids

1.24

0.587

pH

(1)

(1)

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

Table 3-21

Nickel-Cobalt

Dye Penetrant Testing Wastewater

BPT Effluent Limitations

Maximum for

Maximum for

any 1 day

monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt tested with the dye penetrant method

Chromium

0.094

0.039

Nickel

0.409

0.271

Fluoride

12.7

5.63

Oil and grease

4.26

2.56

Total suspended solids

8.74

4.16

pH

(1)

(1)

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

Table 3-22

Nickel-Cobalt

Electrocoating Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt electro-coated

Chromium

1.48

0.607

Nickel

6.47

4.28

Fluoride

201

89.0

Oil and grease

67.4

40.5

Total suspended solids

138

65.7

pH

(1)

(1)

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

Table 3-23

Nickel-Cobalt

Miscellaneous Wastewater Streams

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium

0.108

0.044

Nickel

0.473

0.313

Fluoride

14.7

6.50

Oil and grease

4.92

2.95

Total suspended solids

10.1

4.80

pH

(1)

(1)

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

Wis. Admin. Code Department of Natural Resources NR 273.032

Cr. Register, September, 1990, No. 417, eff. 10-1-90.