Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System › Chapter NR 274 - Nonferrous metals manufacturing › Subchapter III - Secondary Aluminum Smelting › Section NR 274.034 - New source performance standards

Current through June 24, 2024
Any new source subject to this subchapter shall achieve the
					 following standards:
Table 3-13
Secondary Aluminum Smelting Scrap Drying Wet Air Pollution
					 Control
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1,000,000 pounds) of scrap
								  dried
Lead
0.000
0.000
Zinc
0.000
0.000
Aluminum
0.000
0.000
Ammonia (as N)
0.000
0.000
Total suspended solids
0.000
0.000
Oil and grease
0.000
0.000
pH
(1)
(1)
(1)Within the range of 7.0 to 10.0 at all times.
Table 3-14
Secondary Aluminum Smelting Scrap Screening and
					 Milling
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1,000,000 pounds) of aluminum
								  scrap screened and milled
Lead
0.000
0.000
Zinc
0.000
0.000
Aluminum
0.000
0.000
Ammonia (as N)
0.000
0.000
Total suspended solids
0.000
0.000
Oil and grease
0.000
0.000
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 3-15
Secondary Aluminum Smelting Dross Washing
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1,000,000 pounds) of dross
								  washed
Lead
0.000
0.000
Zinc
0.000
0.000
Aluminum
0.000
0.000
Ammonia (as N)
0.000
0.000
Total suspended solids
0.000
0.000
Oil and grease
0.000
0.000
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 3-16
Secondary Aluminum Smelting Demagging Wet Air Pollution
					 Control
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1,000,000 pounds) of aluminum
								  demagged
Lead
0.216
0.100
Zinc
0.786
0.324
Aluminum
4.711
2.090
Ammonia (as N)
102.800
45.180
Total suspended solids
11.570
9.252
Oil and grease
7.710
7.710
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 3-17
Secondary Aluminum Smelting Delacquering Wet Air Pollution
					 Control
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1,000,000 pounds) of aluminum
								  delacquered
Lead
0.093
0.043
Zinc
0.340
0.140
Aluminum
2.035
0.903
Ammonia (as N)
44.389
19.514
Total phenolics (4-AAP) 
								  (1)
0.004
Total suspended solids
4.995
3.996
Oil and grease
3.330
3.330
pH
(2)
(2)
(1) At or before the commingling of delacquering scrubber
					 liquor blowdown with other process or nonprocess waters.
(2) Within the range of 7.0 to 10.0 at all times.
Table 3-18
Secondary Aluminum Smelting Direct Chill Casting Contact
					 Cooling
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1,000,000 pounds) of aluminum
								  cast
Lead
0.372
0.173
Zinc
1.356
0.558
Aluminum
8.120
3.602
Ammonia (as N)
177.200
77.880
Total suspended solids
19.400
15.950
Oil and grease
13.290
13.290
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 3-19
Secondary Aluminum Smelting Ingot Conveyor Casting Contact
					 Cooling When Chlorine Demagging Wet Air Pollution Control Is Not Practiced On
					 Site
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1,000,000 pounds) of aluminum
								  cast
Lead
0.019
0.009
Zinc
0.068
0.028
Aluminum
0.409
0.182
Ammonia (as N)
8.931
3.926
Total suspended solids
1.005
0.804
Oil and grease
0.670
0.670
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 3-20
Secondary Aluminum Smelting Ingot Conveyor Contact Cooling
					 When Chlorine Demagging Wet Air Pollution Control Is Practiced On Site
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1,000,000 pounds) of aluminum
								  cast
Lead
0.000
0.000
Zinc
0.000
0.000
Aluminum
0.000
0.000
Ammonia (as N)
0.000
0.000
Total suspended solids
0.000
0.000
Oil and grease
0.000
0.000
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 3-21
Secondary Aluminum Smelting Stationary Casting Contact
					 Cooling
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1,000,000 pounds) of aluminum
								  cast
Lead
0.000
0.000
Zinc
0.000
0.000
Aluminum
0.000
0.000
Ammonia (as N)
0.000
0.000
Total suspended solids
0.000
0.000
Oil and grease
0.000
0.000
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 3-22
Secondary Aluminum Smelting Shot Casting Contact
					 Cooling
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1,000,000 pounds) of aluminum
								  cast
Lead
0.000
0.000
Zinc
0.000
0.000
Aluminum
0.000
0.000
Ammonia (as N)
0.000
0.000
Total suspended solids
0.000
0.000
Oil and grease
0.000
0.000
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.