74:12:02:11Oil,
Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
gas, and water strata required to be sealed. During construction of oil, gas, and injection wells all oil and gas bearing strata and freshwater resources must be sealed to preclude vertical migration of fluids or gas between strata. Freshwater or freshwater muds must be used from the surface to no less than 50 feet below the base of all locally utilized freshwater resources when drilling.
Source: 38 SDR 117, effective January 12, 2012.