Oklahoma Surface Impoundments regulations & environmental compliance analysis

Oklahoma Surface Impoundments: What you need to know

Governing Law and Regulations

Hazardous waste surface impoundment requirements: Oklahoma Administrative Code (OAC) 252:205-3-2(f) and OAC 252:205-3-2(g) (interim status)

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Liquid hazardous waste prohibition: 27A Oklahoma Statutes Annotated (OSA) 2-7-110

Regulatory Agency

Oklahoma Department of Environmental Quality (DEQ) Land Protection Division Hazardous Waste Compliance and Inspection Section

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Oklahoma has adopted the federal rules for surface impoundments, including the organic air emissions standards. In addition, owners and operators of hazardous waste treatment, storage, and disposal facilities (TSDFs) that use surface impoundments must comply with additional permit application requirements and pay several state permit and facility fees. The state's more stringent permit standards and fees are reviewed in the state section TSDF PERMITS.

Administration and enforcement. DEQ's Land Protection Division administers and enforces the rules for hazardous waste surface impoundments in Oklahoma.

State Requirements


27A OSA 2-7-110

Oklahoma prohibits and will not grant a permit for the treatment, disposal, or temporary storage of any liquid hazardous waste in a surface impoundment unless the liquid hazardous waste was generated by the owners of the surface impoundment.


Click below to access the following DEQ checklist.

Read more about Surface Impoundments