Oklahoma Stormwater-General regulations & environmental compliance analysis

Oklahoma Stormwater-General: What you need to know

Governing Law and Regulations

Oklahoma Pollutant Discharge Elimination System (OPDES), 27A Oklahoma Statutes Annotated (OSA) 2-6-201 to 2-6-206 and Oklahoma Administrative Code (OAC) 252:606-1-1 to 252:606 Appendix F

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Oklahoma water quality standards: OAC 785:45-5-1 to 785:45-5-26

Regulatory Agencies

Oklahoma Department of Environmental Quality (DEQ) Water Quality Division

Oklahoma Corporation Commission (OCC)

U.S. Environmental Protection Agency (EPA) Region 6

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Oklahoma is fully authorized to administer and enforce the National Pollutant Discharge Elimination System (NPDES) program (known as OPDES in Oklahoma) for regulating discharges, including for stormwater. The state follows the federal requirements for stormwater discharges with additional requirements for submittals and fees.

See the national section STORMWATER—GENERAL for information on the federal permitting program and the state sections STORMWATER—INDUSTRIAL FACILITIES, STORMWATER—CONSTRUCTION ACTIVITIES, and STORMWATER—MUNICIPALITIES for more information on the state requirements for these specific discharges.

Administration and enforcement. The EPA-approved state OPDES program for stormwater discharges from most industrial facilities and construction activities is administered and enforced by DEQ's Water Quality Division. The EPA retains authority to administer the NPDES program on Native American lands in Oklahoma.


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