74:02:04:57Minimum hole size for
Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
grouting. When grouting is required, the drill hole size must be large enough to allow the casing with centralizers to be pressure grouted from the top of the producing formation up to the bottom of a pitless unit or adapter or to the ground surface.
Source: 12 SDR 50, effective September 29, 1985; 13 SDR 129, 13 SDR 141, effective July 1, 1987.