Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
plugging other test holes. Test holes that encounter no water or only low-permeability formations such as clays, shales, and till must be backfilled to restore natural conditions as nearly as possible. Backfill material must be free of contamination and have a permeability equal to or less than the permeability of the formations encountered in the borehole.
Source: 12 SDR 50, effective September 29, 1985; 13 SDR 129, 13 SDR 141, effective July 1, 1987; 18 SDR 224, effective July 16, 1992.