Oklahoma Underground Injection Wells regulations & environmental compliance analysis

Oklahoma Underground Injection Wells: What you need to know

Governing Law and Regulations

Hazardous waste underground injection well permit-by-rule standards: Oklahoma Administrative Code (OAC) 252:205-3-2

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Rules for Class I, Class III, and Class V underground injection wells: OAC 252:652

Class I wells:

Siting criteria: OAC 252:652-3-1

Permit applications: OAC 252:652-5-1

Well construction requirements: OAC 252:652-7-1

Facility operating standards: OAC 252:652-9-1

Fees: OAC 252:652-1-6

Class II wells: OAC 165:10-5-1 to 165:10-5-15

Carbon sequestration: OAC 155:30-1-1 to 155:30-13-5

Regulatory Agencies

Oklahoma Department of Environmental Quality (DEQ) Land Protection Division

Oklahoma Corporation Commission (OCC) Oil and Gas Division Underground Injection Control (UIC) Department

Oklahoma Conservation Commission

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. As under the federal rules, Oklahoma prohibits the construction, installation, or operation of Class IV wells. Although the Oklahoma regulations allow hazardous waste to be injected into underground Class I wells, currently the state has no Class I wells permitted to dispose of hazardous waste.

Oklahoma has adopted the federal permit-by-rule option for underground injection wells. Wells that meet the permit-by-rule requirements (including the requirement that the facility have an underground injection well permit under the federal Safe Drinking Water Act (SDWA)) are deemed to have a hazardous waste disposal facility permit; they do not have to apply for one. In addition, Oklahoma requires facilities disposing of waste in Class I, Class III, or Class V injection wells in Oklahoma to pay various state fees.

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