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 VIII - Zinc › Section NR 273.084 - New source performance standards

Current through June 24, 2024
Any new source subject to this subchapter shall achieve the
					 following standards:
Table 8-23
Zinc
Rolling Spent Emulsions
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  rolled with emulsions
Chromium
0.0005
0.0002
Copper
0.002
0.0009
Cyanide
0.0003
0.0001
Zinc
0.002
0.0006
Oil and grease
0.014
0.014
Total suspended solids
0.021
0.017
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all times
Table 8-24
Zinc
Rolling Contact Cooling Water
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  rolled with contact cooling water
Chromium
0.020
0.009
Copper
0.069
0.037
Cyanide
0.011
0.004
Zinc
0.055
0.023
Oil and grease
0.536
0.536
Total suspended solids
0.804
0.643
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all times
Table 8-25
Zinc
Drawing Spent Emulsions
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  drawn with emulsions
Chromium
0.002
0.0009
Copper
0.008
0.004
Cyanide
0.001
0.0005
Zinc
0.006
0.003
Oil and grease
0.058
0.058
Total suspended
0.087
0.070
solids
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all times
Table 8-26
Zinc
Direct Chill Casting Contact Cooling Water
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  cast by the direct chill method
Chromium
0.019
0.008
Copper
0.065
0.031
Cyanide
0.010
0.004
Zinc
0.052
0.021
Oil and grease
0.505
0.505
Total suspended solids
0.758
0.606
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all times
Table 8-27
Zinc
Heat Treatment Contact Cooling Water
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  heat treated
Chromium
0.029
0.012
Copper
0.098
0.047
Cyanide
0.016
0.006
Zinc
0.078
0.032
Oil and grease
0.763
0.763
Total suspended solids
1.15
0.916
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all times
Table 8-28
Zinc
Surface Treatment Spent Baths
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  surface treated
Chromium
0.033
0.014
Copper
0.114
0.054
Cyanide
0.018
0.007
Zinc
0.091
0.038
Oil and grease
0.887
0.887
Total suspended solids
1.33
1.07
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all times
Table 8-29
Zinc
Surface Treatment Rinse
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  surface treated
Chromium
0.133
0.054
Copper
0.459
0.219
Cyanide
0.072
0.029
Zinc
0.365
0.151
Oil and grease
3.58
3.58
Total suspended solids
5.37
4.30
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all times
Table 8-30
Zinc
Alkaline Cleaning Spent Baths
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  alkaline cleaned
Chromium
0.002
0.0006
Copper
0.005
0.002
Cyanide
0.0007
0.0003
Zinc
0.004
0.002
Oil and grease
0.036
0.036
Total suspended solids
0.054
0.043
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all times
Table 8-31
Zinc
Alkaline Cleaning Rinse
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  alkaline cleaned
Chromium
0.626
0.254
Copper
2.17
1.03
Cyanide
0.338
0.135
Zinc
1.73
0.710
Oil and grease
16.9
16.9
Total suspended solids
25.4
20.3
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all times
Table 8-32
Zinc
Sawing or Grinding Spent Emulsions
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  sawed or ground with emulsions
Chromium
0.009
0.004
Copper
0.031
0.015
Cyanide
0.005
0.002
Zinc
0.025
0.010
Oil and grease
0.235
0.235
Total suspended solids
0.357
0.286
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all times
Table 8-33
Zinc
Electrocoating Rinse
NSPS
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/off-kg (pounds per million off-pounds) of zinc
								  electrocoated
Chromium
0.085
0.035
Copper
0.293
0.140
Cyanide
0.046
0.019
Zinc
0.234
0.096
Oil and grease
2.29
2.29
Total suspended
3.44
2.75
solids
pH
(1)
(1)
(1) Within the range of 7.5 to 10.0 at all
					 times