421.194—Standards of performance for new sources.
         Any new source subject to this subpart shall achieve the following new source performance standards:
    
    
    | Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 
|---|---|---|
| mg/kg (pounds per million pounds) of indium metal produced | ||
| Cadmium | 2.105 | 0.929 | 
| Lead | 2.600 | 1.238 | 
| Zinc | 9.037 | 3.776 | 
| Indium | 2.724 | 1.114 | 
| Total suspended solids | 253.800 | 120.700 | 
| pH | (1) | (1) | 
| 1 Within the range of 7.5 to 10.0 at all times. | ||
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 
|---|---|---|
| mg/kg (pounds per million pounds) of cathode indium produced | ||
| Cadmium | 12.170 | 5.370 | 
| Lead | 15.040 | 7.160 | 
| Zinc | 52.270 | 21.840 | 
| Indium | 15.750 | 6.444 | 
| Total suspended solids | 1,468.000 | 698.100 | 
| pH | (1) | (1) | 
| 1 Within the range of 7.5 to 10.0 at all times. | ||