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 274.033 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable

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 BAT:
Table 3-3
Secondary Aluminum Smelting Scrap Drying Wet Air Pollution
					 Control
BAT Effluent Limitations
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
Table 3-4
Secondary Aluminum Smelting Scrap Screening and
					 Milling
BAT Effluent Limitations
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
Table 3-5
Secondary Aluminum Smelting Dross Washing
BAT Effluent Limitations
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
3.043
1.413
Zinc
11.090
4.565
Aluminum
66.410
29.450
Ammonia (as N)
1,449.000
636.900
Table 3-6
Secondary Aluminum Smelting Demagging Wet Air Pollution
					 Control
BAT Effluent Limitations
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
Table 3-7
Secondary Aluminum Smelting Delacquering Wet Air Pollution
					 Control
BAT Effluent Limitations
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
(1) At or before the commingling of delacquering scrubber
					 liquor blowdown with other process or nonprocess waters.
Table 3-8
Secondary Aluminum Smelting Direct Chill Casting
					 Contact
BAT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per 1, of aluminu
000,000 pounds) m cast
Lead
0.372
0.173
Zinc
1.356
0.558
Aluminum
8.120
3.602
Ammonia (as N)
177.200
77.880
Table 3-9
Secondary Aluminum Smelting Ingot Conveyor Contact Cooling
					 When Chlorine Demagging Wet Air Pollution Control Is Not Practiced On
					 Site
BAT Effluent Limitations
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
Table 3-10
Secondary Aluminum Smelting Ingot Conveyor Contact Cooling
					 When Chlorine Demagging Wet Air Pollution Control Is Practiced On Site
BAT Effluent Limitations
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
Table 3-11
Secondary Aluminum Smelting Stationary Casting Contact
					 Cooling
BAT Effluent Limitations
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
Table 3-12
Secondary Aluminum Smelting Shot Casting Contact
					 Cooling
BAT Effluent Limitations
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