Wis. Admin. Code Department of Natural Resources NR 273.052

Current through October 28, 2024
Section NR 273.052 - 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 5-1

Refractory Metals

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 refractory metals rolled with emulsions

Copper

0.815

0.429

Nickel

0.824

0.545

Fluoride

25.5

11.3

Molybdenum

2.84

1.47

Oil and grease

8.58

5.15

Total suspended solids

17.6

8.37

pH

(1)

(1)

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

Table 5-2

Refractory Metals

Extrusion Press Hydraulic Fuel 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 refractory metals extruded

Copper

2.26

1.19

Nickel

2.29

1.51

Fluoride

70.8

31.4

Molybdenum

7.87

4.07

Oil and grease

23.8

14.3

Total suspended solids

48.8

23.2

pH

(1)

(1)

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

Table 5-3

Refractory Metals

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 refractory metals cooled with water

Copper

0.614

0.323

Nickel

0.620

0.410

Fluoride

19.2

8.53

Molybdenum

2.14

1.11

Oil and grease

6.46

3.88

Total suspended solids

13.3

6.30

pH

(1)

(1)

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

Table 5-4

Refractory Metals

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 refractory metals formed

Copper

2.59

1.36

Nickel

2.61

1.73

Fluoride

80.9

35.9

Molybdenum

8.99

4.65

Oil and grease

27.2

16.3

Total suspended solids

55.8

26.5

pH

(1)

(1)

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

Table 5-5

Refractory Metals

Metal Powder Production 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 refractory metals powder produced

Copper

0.534

0.281

Nickel

0.540

0.357

Fluoride

16.70

7.42

Molybdenum

1.86

0.961

Oil and grease

5.62

3.37

Total suspended solids

11.5

5.48

pH

(1)

(1)

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

Table 5-6

Refractory Metals

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 refractory metals surface treated

Copper

0.739

0.389

Nickel

0.747

0.494

Fluoride

23.2

10.3

Molybdenum

2.57

1.33

Oil and grease

7.78

4.68

Total suspended solids

16.0

7.59

pH

(1)

(1)

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

Table 5-7

Refractory Metals

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 refractory metals surface treated

Copper

230

121

Nickel

232

154

Fluoride

7,200

3,200

Molybdenum

800

414

Oil and grease

2,420

1,450

Total suspended solids

4,960

2,360

pH

(1)

(1)

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

Table 5-8

Refractory Metals

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 refractory metals alkaline cleaned

Copper

0.635

0.334

Nickel

0.641

0.424

Fluoride

19.9

8.82

Molybdenum

2.21

1.14

Oil and grease

6.68

4.01

Total suspended solids

13.7

6.51

pH

(1)

(1)

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

Table 5-9

Refractory Metals

Alkaline Cleaning Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/off-kg (pounds pounds) of refracto line cleaned

per million off-ry metals alka-

Copper

1,550

816

Nickel

1,570

1,040

Fluoride

48,600

21,600

Molybdenum

5,400

2,790

Oil and grease

16,300

9,790

Total suspended solids

33,500

15,900

pH

(1)

(1)

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

Table 5-10

Refractory Metals

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 refractory metals treated with molten salt

Copper

12.1

6.33

Nickel

12.2

8.04

Fluoride

377

167

Molybdenum

41.9

21.7

Oil and grease

127

76.0

Total suspended solids

260

124

pH

(1)

(1)

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

Table 5-11

Refractory Metals

Tumbling or Burnishing 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 refractory metals tumbled or burnished

Copper

23.8

12.5

Nickel

24.0

15.9

Fluoride

744

330

Molybdenum

82.7

42.8

Oil and grease

250

150

Total suspended solids

513

244

pH

(1)

(1)

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

Table 5-12

Refractory Metals

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 refractory metals sawed or ground with emulsions

Copper

0.565

0.297

Nickel

0.570

0.377

Fluoride

17.7

7.84

Molybdenum

1.97

1.02

Oil and grease

5.94

3.57

Total suspended solids

12.2

5.79

pH

(1)

(1)

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

Table 5-13

Refractory Metals

Sawing or Grinding 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 refractory metals sawed or ground with contact cooling water

Copper

46.2

24.3

Nickel

46.7

30.9

Fluoride

1450

642

Molybdenum

161

83.1

Oil and grease

486

292

Total suspended solids

997

474

pH

(1)

(1)

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

Table 5-14

Refractory Metals

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 refractory metals rinsed

Copper

0.257

0.135

Nickel

0.259

0.172

Fluoride

8.03

3.57

Molybdenum

0.893

0.462

Oil and grease

2.70

1.62

Total suspended solids

5.54

2.63

pH

(1)

(1)

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

Table 5-15

Refractory Metals

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 refractory metals sawed, ground, surface coated, or surface treated

Copper

1.50

0.787

Nickel

1.51

1.00

Fluoride

46.8

20.8

Molybdenum

5.20

2.69

Oil and grease

15.8

9.45

Total suspended solids

32.3

15.4

pH

(1)

(1)

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

Table 5-16

Refractory Metals

Miscellaneous Wastewater Sources

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 refractory metals formed

Copper

0.656

0.345

Nickel

0.663

0.438

Fluoride

20.6

9.11

Molybdenum

2.28

1.18

Oil and grease

6.9

4.14

Total suspended solids

14.2

6.73

pH

(1)

(1)

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

Table 5-17

Refractory Metals

Dye Penetrant Testing 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 refractory metals tested

Copper

0.150

0.078

Nickel

0.150

0.099

Fluoride

4.60

2.00

Molybdenum

0.513

0.266

Oil and grease

1.60

0.930

Total suspended solids

3.20

1.50

pH

(1)

(1)

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

Wis. Admin. Code Department of Natural Resources NR 273.052

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