South Dakota Administrative Rules
Title 74 - Department of Environment And Natural Resources
Article 74:36 - Air pollution control program
Chapter 74:36:18 - Regulations for state facilities in the Rapid City area
Section 74:36:18:10 - Visible emission limit for construction and continuous operation activities

The owner or operator of a state facility or state contractor may not discharge into the ambient air from a fugitive source an air pollutant of a density equal to or greater than that designated as 20 percent opacity for a series of two minute averages with a minimum of a total of six minutes of readings. The Environmental Protection Agency's Method 9 in 40 C.F.R. Part 60, Appendix A (July 1, 2018) shall be used to determine the opacity.

General Authority: SDCL 34A-1-6.

Law Implemented: SDCL 34A-1-47, 34A-1-49.