Illustrated diagram comparing a federal Superfund NPL checklist against an NPS-run cleanup crew working at a fenced mine site, showing the two different cleanup paths

Grand Canyon contaminated sites: why none are on the Superfund list

None of Grand Canyon’s mine, landfill, or wastewater sites are on the federal Superfund or Arizona state cleanup lists. Here is who runs the cleanups instead.

September 23, 2026 · 8 min · 1642 words · Justin