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

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

Governing Law and Regulations

Hazardous waste treatment, storage, and disposal facility (TSDF) closure and post-closure rules: Administrative Rules of Montana (ARM) 17.53.801(1) and ARM 17.53.901(1) (interim status)

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Underground storage tanks (USTs): ARM 17.56.701 to 17.56.706

Closure notices for USTs: ARM 17.56.705

Closure site assessment for USTs: ARM 17.56.703

Regulatory Agency

Montana Department of Environmental Quality (DEQ) Permitting and Compliance Division Waste and Underground Tank Management Bureau

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Montana has adopted by reference the federal closure and post-closure rules for hazardous waste treatment, storage, and disposal facilities (TSDFs), including the provisions for alternative closure standards and for allowing unpermitted facilities to obtain enforceable documents in lieu of a post-closure permit. 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. Colorado follows the federal facility-specific rules.

Montana follows the federal rules for UST closures, with additional requirements for site assessments at closure and closure notification. The state has very specific standards for the closure and post-closure period of solid (nonhazardous) waste landfills. See the state section SOLID WASTE for more information.

Administration and enforcement. Different sections of DEQ's Waste and Underground Tank Management Bureau administer and enforce the closure and post-closure ...


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