An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Resource Conservation and Recovery Act (RCRA) Training Module about Land Disposal Units

This training module:

  • Cites the statutory and regulatory minimum technological requirements for land disposal units
  • Summarizes the differences between interim status (part 265) and permitted (part 264) standards for land disposal units
  • Defines "surface impoundment" and distinguishes surface impoundments from tanks
  • Describes surface impoundment retrofitting and retrofitting variance procedures
  • Explains the connection between land disposal unit standards, post-closure, and groundwater monitoring requirements

Access other training modules that provide overviews of other specific RCRA regulatory topics here.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.