T30S112.14(b)
| SO2 Parts Per Million by Volume (ppmv) Maximum | |||||
| Two-Hour Average | Three-Hour* Average | ||||
| (1) | Primary Copper Smelter for all purposes other than those listed below: | 650 | |||
| (A) | Reverberatory Furnace | 6,000 | |||
| (2) | Primary Zinc Smelter | 1,000 | |||
| (3) | Primary Lead Smelter | ||||
| (A) | Sinter Machine Discharge End (provided gases do not pass through Sinter bed) | 2,500 | |||
| (B) | Sinter Handling Equipment Emission Collecting Systems | 2,500 | |||
| (C) | All Other Processes | 650 | |||
| (4) | Other Primary Smelter | 2,500 | |||
| (5) | Secondary Metal Recovery Facility | 3,500 | |||
| (6) | Sulfuric Acid Plant | 650 | |||
*The three-hour standards will be based on a six-hour average until September 30, 1994.