Indiana Closure/Post-Closure Plans regulations & environmental compliance analysis

Indiana Closure/Post-Closure Plans: What you need to know

Governing Law and Regulations

Permitted hazardous waste treatment, storage, and disposal facility (TSDF) closure and post-closure rules: 329 Indiana Administrative Code (IAC): 3.1-9-1

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Interim-status TSDF closure and post-closure rules: 329 IAC 3.1-10-1, 329 IAC 3.1-10-2(13), and 329 IAC 3.1-10-2(14)

Regulatory Agency

Indiana Department of Environmental Management (IDEM) Office of Land Quality

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Indiana's closure and post-closure rules for permitted TSDFs are the same as federal requirements. The rules for interim-status facilities are also the same as the federal rules with one variation in connection with the submission of closure or post-closure plans. In addition to complying with the general closure and post-closure standards, owners or operators of the various types of TSDFs have to meet closure and post-closure standards specific to their facility types. Indiana follows the federal rules specific to facilities using containers, hazardous waste storage tanks, hazardous waste landfills, land treatment units, and surface impoundments.

Administration and enforcement. IDEM's Office of Land Quality administers and enforces the TSDF closure and post-closure requirements in Indiana.

State Requirements


329 IAC 3.1-10-2(13) and 329 IAC 3.1-10-2(14)

Under the federal rules, an interim-status TSDF must submit its closure or post-closure plan no later than 15 days after either:

  • Termination of interim status except when a permit is issued simultaneously with termination of interim status; or
  • The issuance of a judicial decree or ...

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