Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System › Chapter NR 273 - Nonferrous metals forming and metal powders › Subchapter V - Refractory Metals › Section NR 273.052 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

Current through June 24, 2024
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