South Dakota Laws > Title 34A > Chapter 2 > § 34A-2-11.1 South Dakota Codified Laws 34A-2-11.1. Presumption favoring existing quality standards Current as of: 2023 | Check for updates | Other versions For the purpose of §§ 34A-2-10 and 34A-2-11, existing valid water quality standards shall be presumed to be in accordance with such sections and the presumption shall be rebuttable. Source: SL 1978, ch 260, § 3. Previous sectionNext section Chapter 2 Contents