20:25:03:05Color standards for marking underground
Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
facilities and identification of marked facilities. Operators who must mark their underground facilities as required by SDCL 49-7A-8 shall use the following color standards: (1) Electric - Red; (2) Gas/oil/steam - Yellow; (3) Communications/CATV - Orange; (4) Water - Blue; (5) Sewer - Green; (6) Temporary survey markings - Pink; (7) Proposed excavation boundaries - White; and (8) Reclaimed water, irrigation, and slurry lines - Purple.
Source: 24 SDR 30, effective September 14, 1997; 26 SDR 161, effective June 8, 2000; 29 SDR 111, effective February 12, 2003; 34 SDR 180, effective December 24, 2007.