Rapid City, SD Environmental Rules: Erosion Control (2026)

Chapter 8.34 exists, per its policy statement in § 8.34.010, to keep the city in compliance with EPA PM10 and PM2.5 air quality standards by controlling fugitive dust and smoke. Section 8.34.040's erosion and sediment control duty applies broadly, not just to active construction: it names vacant lots and homes without landscaping specifically alongside construction sites. Section 8.34.030 backs this with a general standard requiring reasonably available control technology and a trackout control device at every construction site. Two hard deadlines give the rule teeth: § 8.34.050 requires landscaping and revegetation to begin as soon as grading or construction ends and finish no later than 14 days after activity stops (temporary stabilization is allowed only if weather blocks final planting until the next season), and § 8.34.080F requires long-term stabilization within 14 days once a site sits inactive for 21 days or more.

Anyone disturbing 1 acre or more of surface area must first obtain a construction permit from the Air Quality Division under § 8.34.100A, and § 8.34.180 lets the Air Quality Division or its inspectors enter and inspect any permitted site for compliance. Chapter 8.34.220 separately declares chapter violations a public nuisance under SDCL § 9-29-13 and § 8.16.010(C)(8), opening the door to nuisance abatement in addition to the chapter's own enforcement path.