| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 
|---|---|---|
| mg/kg (pounds per million pounds) of zinc reduced | ||
| Cadmium | .334 | .134 | 
| Copper | 2.135 | 1.018 | 
| Lead | .467 | .217 | 
| Zinc | 1.702 | .701 | 
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 
|---|---|---|
| mg/kg (pounds per million pounds) of concentrate leached | ||
| Cadmium | .180 | .072 | 
| Copper | 1.153 | .550 | 
| Lead | .252 | .117 | 
| Zinc | .919 | .378 | 
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 
|---|---|---|
| mg/kg (pounds per million pounds) of zinc processed through leaching | ||
| Cadmium | .000 | .000 | 
| Copper | .000 | .000 | 
| Lead | .000 | .000 | 
| Zinc | .000 | .000 | 
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 
|---|---|---|
| mg/kg (pounds per million pounds) of cathode zinc produced | ||
| Cadmium | .086 | .035 | 
| Copper | .553 | .264 | 
| 
                     
                                
                                    Code of Federal Regulations
                                
                                492
                             
                         | 
            ||
| Lead | .121 | .056 | 
| Zinc | .441 | .182 | 
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 
|---|---|---|
| mg/kg (pounds per million pounds) of cathode zinc produced | ||
| Cadmium | .150 | .060 | 
| Copper | .961 | .458 | 
| Lead | .210 | .098 | 
| Zinc | .766 | .315 | 
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 
|---|---|---|
| mg/kg (pounds per million pounds) of zinc cast | ||
| Cadmium | .051 | .021 | 
| Copper | .329 | .157 | 
| Lead | .072 | .033 | 
| Zinc | .262 | .108 | 
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 
|---|---|---|
| mg/kg (pounds per million pounds) of zinc cast | ||
| Cadmium | .036 | .014 | 
| Copper | .232 | .110 | 
| Lead | .051 | .024 | 
| Zinc | .185 | .076 | 
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 
|---|---|---|
| mg/kg (pounds per million pounds) of cadmium produced | ||
| Cadmium | 1.234 | .494 | 
| Copper | 7.899 | 3.765 | 
| Lead | 1.728 | .802 | 
| Zinc | 6.295 | 2.592 |