The operation of ambient air monitoring required by the department must be consistent with 40 C.F.R. Part 58 (July 1, 2024). Records of monitoring activities and results must be retained for a minimum of three years.

Source: 19 SDR 157, effective April 22, 1993; 21 SDR 119, effective January 5, 1995; 25 SDR 123, effective April 4, 1999; 26 SDR 168, effective June 27, 2000; 31 SDR 101, effective January 2, 2005; 32 SDR 209, effective June 13, 2006; 36 SDR 207, effective June 28, 2010; 39 SDR 219, effective June 25, 2013; 42 SDR 52, effective October 13, 2015; 44 SDR 43, effective September 13, 2017; 46 SDR 64, effective November 25, 2019 ; 52 SDR 27, effective September 17, 2025 .

General Authority: SDCL 34A-1-6 , 34A-1-15 .

Law Implemented: SDCL 34A-1-1 , 34A-1-15 .

Prior versions effective: 2019-11-25, 2017-09-13, 2015-10-13, 2013-06-25.