No owner or other person shall cause or permit to be discharged into the atmosphere from any sulfuric acid production unit any sulfur dioxide emissions in excess of a concentration of 2000 parts per million by volume and a mass emission rate of 27 pounds per ton of 100% acid produced when elemental sulfur is used for feed material, or 3500 ppm by volume and a mass emission rate of 45 pounds per ton of 100% acid produced when other raw materials such as recycled spent acid and ores are used as feed. These emissions levels may be exceeded for a period not longer than 24 hours during start-up.
9 Va. Admin. Code § 5-40-2850
Statutory Authority
§§ 10.1-1307 and 10.1-1308 of the Code of Virginia.