Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System › Chapter NR 257 - Aluminum forming › Subchapter VI - The Drawing With Emulsions or Soaps Subcategory › Section NR 257.64 - New source performance standards

Current through June 24, 2024
Any new source subject to this subchapter shall achieve the
					 following performance standards:
Table 174
Core operation NSPS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum drawn
								  with emulsions or soaps
Chromium
0.173
0.070
Cyanide
0.094
0.038
Zinc
0.476
0.196
Aluminum
2.85
1.27
Oil and grease
4.67
4.67
Suspended solids
7.00
5.60
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 175
Continuous rod casting spent lubricant
					 NSPS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod
								  cast
Chromium
0.0008
0.0003
Cyanide
0.0004
0.0002
Zinc
0.0020
0.0008
Aluminum
0.012
0.0053
Oil and grease
0.020
0.020
Suspended solids
0.030
0.024
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 176
Continuous rod casting contact cooling water
					 NSPS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod
								  cast
Chromium
0.072
0.029
Cyanide
0.039
0.016
Zinc
0.198
0.081
Aluminum
1.184
0.526
Oil and grease
1.940
1.940
Suspended solids
2.91
2.33
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 177
Solution heat treatment contact cooling water
					 NSPS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum
								  quenched
Chromium
0.754
0.31
Cyanide
0.408
0.16
Zinc
2.08
0.86
Aluminum
12.450
5.52
Oil and grease
20.00
20.37
Suspended solids
20.56
24.45
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 178
Cleaning or etching bath NSPS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum
								  cleaned or etched
Chromium
0.066
0.027
Cyanide
0.036
0.015
Zinc
0.183
0.075
Aluminum
1.094
0.49
Oil and grease
1.79
1.79
Suspended solids
2.69
2.15
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 179
Cleaning or etching rinse and hot water seal
					 NSPS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum
								  cleaned or etched
Chromium
0.515
0.21
Cyanide
0.278
0.11
Zinc
1.42
0.59
Aluminum
8.50
3.77
Oil and grease
13.911
13.91
Suspended solids
20.87
16.70
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 180
Cleaning or etching scrubber liquor
					 NSPS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum
								  cleaned or etched
Chromium
0.72
0.290
Cyanide
0.387
0.155
Zinc
1.97
0.812
Aluminum
1.18
5.24
Oil and grease
19.33
19.33
Suspended solids
29.00
23.20
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all
					 times.