Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System › Chapter NR 257 - Aluminum forming › Subchapter V - The Drawing With Neat Oils Subcategory › Section NR 257.54 - New source performance standards

Current through June 24, 2024
Any new source subject to this subchapter shall achieve the
					 following performance standards:
Table 139
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 neat oils
Chromium
0.019
0.008
Cyanide
0.010
0.004
Zinc
0.051
0.021
Aluminum
0.304
0.135
Oil and grease
0.498
0.498
Suspended solids
0.747
0.598
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 140
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
0.002
0.0008
Aluminum
0.012
0.006
Oil and grease
0.02
0.02
Suspended solids
0.03
0.024
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 141
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
0.082
Aluminum
1.185
0.526
Oil and grease
1.939
1.939
Suspended solids
2.909
2.327
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 142
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
0.306
Cyanide
0.408
0.163
Zinc
2.08
0.856
Aluminum
12.45
5.52
Oil and grease
20.37
20.37
Suspended solids
30.56
24.45
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 143
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
0.485
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 144
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
0.209
Cyanide
0.278
0.111
Zinc
1.42
0.584
Aluminum
8.50
3.77
Oil and grease
13.91
13.91
Suspended solids
20.87
16.70
pH
(1)
(1)
1 Within the range of 7.0 to 10 at all times.
Table 145
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
0.715
0.290
Cyanide
0.387
0.155
Zinc
1.97
0.812
Aluminum
11.81
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.