Environmental compliance
Environmental compliance in South Dakota
4,379 active EPA-regulated sites in South Dakota: 144 with an identified violation, 28 in significant violation, $5.9 million in penalties over five years — EPA ECHO, as of October 18, 2026, by county and facility.
How many facilities in South Dakota are regulated by the EPA, and how many are in violation (as of October 18, 2026)?
How many active facilities in South Dakota fall under each EPA program?
A facility can be in several programs.
| Program | Active sites |
|---|---|
| Air (Clean Air Act) | 277 |
| Water discharge permits (Clean Water Act, NPDES) | 2,070 |
| Hazardous waste (RCRA) | 1,605 |
| Drinking water systems (SDWA) | 626 |
| Toxics Release Inventory reporters | 113 |
| Greenhouse gas reporters (GHGRP) | 31 |
Which counties in South Dakota have the most facilities in significant violation of EPA rules?
EPA Enforcement and Compliance History Online (ECHO), weekly national export. Counts cover active sites in the Facility Registry Service; inspections, formal actions and penalties cover the last five years, quarters in violation the last three years. The EPA attributes a case that covers several facilities to each of them; area penalty totals here count an amount shared through the same federal case once, facility figures show the amount attributed to that facility. Large facilities are Clean Air Act majors, Clean Water Act majors and large hazardous waste generators or handlers. Source record.
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