ARSD 74:36:07:37. Control system

The department must approve the control system if it is equivalent to or meets one of the following requirements: (1) An open flare designed and operated in accordance with the parameters established in 40 C.F.R. § 60.18 (July 1, 2024); (2) A control system designed and operated to reduce nonmethane organic compounds by ninety-eight percent by weight; or (3) An enclosed combustor designed and operated to either reduce nonmethane organic compounds by ninety-eight percent by weight or the outlet nonmethane organic compound concentration to twenty parts per million as hexane by volume, dry basis at three percent oxygen, or less. The EPA approved South Dakota’s 111d plan as required by the Clean Air Act on March 30, 2021. These rules are no longer in effect except for the owner or operators permitted prior to the date of the EPA approval.