Wis. Admin. Code Department of Natural Resources NR 274.264
Any new source subject to this subchapter shall achieve the following standards:
Table 26-29
Secondary Precious Metals Furnace Wet Air Pollution Control
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of precious metals, including silver, incinerated or smelted | |
Copper | 5.760 | 2.745 |
Cyanide | 0.900 | 0.360 |
Zinc | 4.590 | 1.890 |
Combined metals | 1.350 | |
Ammonia (as N) | 599.900 | 263.700 |
Total suspended solids | 67.500 | 54.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-30
Secondary Precious Metals Raw Material Granulation
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of precious metal in the granulated raw material | |
Copper | 0.819 | 0.390 |
Cyanide | 0.128 | 0.051 |
Zinc | 0.653 | 0.269 |
Combined metals | 0.192 | |
Ammonia (as N) | 85.310 | 37.500 |
Total suspended solids | 9.600 | 7.680 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-31
Secondary Precious Metals Spent Plating Solutions
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/liter of spent plating solution used as a raw material | |
Copper | 1.280 | 0.610 |
Cyanide | 0.200 | 0.080 |
Zinc | 1.020 | 0.420 |
Combined metals | 0.300 | |
Ammonia (as N) | 133.300 | 58.600 |
Total suspended solids | 15.000 | 12.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-32
Secondary Precious Metals Spent Cyanide Stripping Solutions
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of gold produced by cyanide stripping | |
Copper | 4.736 | 2.257 |
Cyanide | 0.740 | 0.296 |
Zinc | 3.774 | 1.554 |
Combined metals | 1.110 | |
Ammonia (as N) | 493.200 | 216.800 |
Total suspended solids | 55.500 | 44.400 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-33
Secondary Precious Metals Refinery Wet Air Pollution Control(1)
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of precious metals, including silver, produced in the refinery | |
Copper | 1.280 | 0.610 |
Cyanide | 0.200 | 0.080 |
Zinc | 1.020 | 0.420 |
Combined metals | 0.300 | |
Ammonia (as N) | 133.300 | 58.600 |
Total suspended solids | 15.000 | 12.000 |
pH | (2) | (2) |
(1) This allowance applies to either acid or alkaline wet air pollution control scrubbers. If both acid and alkaline wet air pollution control scrubbers are present in a particular facility, the same allowance applies to each.
(2) Within the range of 7.5 to 10 at all times.
Table 26-34
Secondary Precious Metals Gold Solvent Extraction Raffinate and Wash Water
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of gold produced by solvent extraction | |
Copper | 0.806 | 0.384 |
Cyanide | 0.126 | 0.050 |
Zinc | 0.643 | 0.265 |
Combined metals | 0.189 | |
Ammonia (as N) | 83.980 | 36.920 |
Total suspended solids | 9.450 | 7.560 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-35
Secondary Precious Metals Gold Spent Electrolyte
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of gold produced by electrolysis | |
Copper | 0.011 | 0.005 |
Cyanide | 0.002 | 0.001 |
Zinc | 0.009 | 0.004 |
Combined metals | 0.003 | |
Ammonia (as N) | 1.160 | 0.510 |
Total suspended solids | 0.131 | 0.104 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-36
Secondary Precious Metals Gold Precipitation and Filtration
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of gold precipitated | |
Copper | 5.632 | 2.684 |
Cyanide | 0.880 | 0.352 |
Zinc | 4.488 | 1.848 |
Combined metals | 1.320 | |
Ammonia (as N) | 586.500 | 257.800 |
Total suspended solids | 66.000 | 52.800 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-37
Secondary Precious Metals Platinum Precipitation and Filtration
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of platinum precipitated | |
Copper | 6.656 | 3.172 |
Cyanide | 1.040 | 0.416 |
Zinc | 5.304 | 2.184 |
Combined metals | 1.560 | |
Ammonia (as N) | 693.200 | 304.700 |
Total suspended solids pH | 78.000 (1) | 62.400 (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-38
Secondary Precious Metals Palladium Precipitation and Filtration
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of palladium precipitated | |
Copper | 7.680 | 3.660 |
Cyanide | 1.200 | 0.480 |
Zinc | 6.120 | 2.520 |
Combined metals | 1.800 | |
Ammonia (as N) | 799.800 | 351.600 |
Total suspended solids | 90.000 | 72.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-39
Secondary Precious Metals Other Platinum Group Metals Precipitation and Filtration
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of other platinum group metals precipitated | |
Copper | 6.656 | 3.172 |
Cyanide | 1.040 | 0.416 |
Zinc | 5.304 | 2.184 |
Combined metals | 1.560 | |
Ammonia (as N) | 693.200 | 304.700 |
Total suspended solids | 78.000 | 62.400 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-40
Secondary Precious Metals Spent Solution for PGC Salt Production
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of gold contained in PGC product | |
Copper | 1.152 | 0.549 |
Cyanide | 0.180 | 0.072 |
Zinc | 0.918 | 0.378 |
Combined metals | 0.270 | |
Ammonia (as N) | 120.000 | 52.740 |
Total suspended solids | 13.500 | 10.800 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-41
Secondary Precious Metals Equipment and Floor Wash
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of precious metals, including silver, produced in the refinery | |
Copper | 0.000 | 0.000 |
Cyanide | 0.000 | 0.000 |
Zinc | 0.000 | 0.000 |
Combined metals | 0.000 | |
Ammonia (as N) | 0.000 | 0.000 |
Total suspended solids | 0.000 | 0.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10 at all times.
Table 26-42
Secondary Precious Metals Preliminary Treatment
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of total precious metals produced through this operation | |
Copper | 64.000 | 50.000 |
Cyanide | 10.000 | 6.000 |
Zinc | 51.000 | 30.500 |
Ammonia (as N) | 6,665.000 | 2,930.000 |
Combined metals | 15.000 | |
Total suspended solids | 750.000 | 600.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Wis. Admin. Code Department of Natural Resources NR 274.264