Wis. Admin. Code Department of Natural Resources NR 274.254
Any new source subject to this subchapter shall achieve the following standards:
Table 25-19
Primary Precious Metals and Mercury Smelter Wet Air Pollution Control
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of gold and silver smelted | |
Lead | 0.364 | 0.169 |
Mercury | 0.195 | 0.078 |
Silver | 0.377 | 0.156 |
Zinc | 1.326 | 0.546 |
Gold | 0.130 | |
Oil and grease | 13.000 | 13.000 |
Total suspended solids | 19.500 | 15.600 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 25-20
Primary Precious Metals and Mercury Silver Chloride Reduction Spent Solution
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver reduced in solution | |
Lead | 0.112 | 0.052 |
Mercury | 0.060 | 0.024 |
Silver | 0.116 | 0.048 |
Zinc | 0.408 | 0.168 |
Gold | 0.040 | |
Oil and grease | 4.000 | 4.000 |
Total suspended solids | 6.000 | 4.800 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 25-21
Primary Precious Metals and Mercury Electrolytic Cells Wet Air Pollution Control
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of gold refined electrolytically | |
Lead | 5.544 | 2.574 |
Mercury | 2.970 | 1.188 |
Silver | 5.742 | 2.376 |
Zinc | 20.200 | 8.316 |
Gold | 1.980 | |
Oil and grease | 198.000 | 198.000 |
Total suspended solids | 297.000 | 237.600 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 25-22
Primary Precious Metals and Mercury Electrolyte Preparation Wet Air Pollution Control
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver in the produced electrolyte | |
Lead | 0.014 | 0.007 |
Mercury | 0.008 | 0.003 |
Silver | 0.015 | 0.006 |
Zinc | 0.051 | 0.021 |
Gold | 0.005 | |
Oil and grease | 0.500 | 0.500 |
Total suspended solids | 0.750 | 0.600 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 25-23
Primary Precious Metals and Mercury Calciner Wet Air Pollution Control
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of mercury condensed | |
Lead | 6.160 | 2.860 |
Mercury | 3.300 | 1.320 |
Silver | 6.380 | 2.640 |
Zinc | 22.440 | 9.240 |
Gold | 2.200 | |
Oil and grease | 220.000 | 220.000 |
Total suspended solids | 330.000 | 264.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 25-24
Primary Precious Metals and Mercury Calcine Quench Water
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of mercury condensed | |
Lead | 4.928 | 2.288 |
Mercury | 2.640 | 1.056 |
Silver | 5.104 | 2.112 |
Zinc | 17.950 | 7.392 |
Gold | 1.760 | |
Oil and grease | 176.000 | 176.000 |
Total suspended solids | 264.000 | 211.200 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 25-25
Primary Precious Metals and Mercury Calciner Stack Gas Contact Cooling Water
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of mercury condensed | |
Lead | 1.162 | 0.540 |
Mercury | 0.623 | 0.249 |
Silver | 1.204 | 0.498 |
Zinc | 4.233 | 1.743 |
Gold | 0.415 | |
Oil and grease | 41.500 | 41.500 |
Total suspended solids | 62.250 | 49.800 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 25-26
Primary Precious Metals and Mercury Condenser Blowdown
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of mercury condensed | |
Lead | 3.864 | 1.794 |
Mercury | 2.070 | 0.828 |
Silver | 4.002 | 1.656 |
Zinc | 14.080 | 5.796 |
Gold | 1.380 | |
Oil and grease | 138.000 | 138.000 |
Total suspended solids | 207.000 | 165.600 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 25-27
Primary Precious Metals and Mercury Mercury Cleaning Bath Water
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of mercury condensed | |
Lead | 0.392 | 0.182 |
Mercury | 0.210 | 0.084 |
Silver | 0.406 | 0.168 |
Zinc | 1.428 | 0.588 |
Gold | 0.140 | |
Oil and grease | 14.000 | 14.000 |
Total suspended solids | 21.000 | 16.800 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Wis. Admin. Code Department of Natural Resources NR 274.254