DEQ Title, click to go to DEQ home page

State Seal of Oklahoma



Compliance and
Technical Assistance


Business & Industry


Communities & Local Government


Concerned Citizens


Permit Assistance


Pollution Prevention

Environmental Education

Environmental Impact Reviews

Water Reuse




Contact Us


Email or 1-800-869-1400


Title Office of External Affairs

Permit Assistance: Water Quality

Environmental Permitting Overview



  • Wastewater Pretreatment Permit If the facility becomes a customer of an existing municipal wastewater treatment system a permit will be issued by the local community if the city has an approved pretreatment program, or by DEQ if the city does not have an approved pretreatment program. In either case, a permit can typically be issued within a few weeks to 90 days. The application form and instructions can be found on the DEQ website here: Application form and Instructions

  • Wastewater Discharge Permit If the facility proposes a new direct discharge, the permitting process can take as long as 6 to 9 months or longer. A wasteload allocation study may be required (6 months or longer) and a Tier III permit may be required (90 to 180 days). Industrial wastewater discharge permit rules

  • Wastewater System (Surface Impoundment, Tank System, or Land Application) Permit If the facility proposes to store water in an impoundment or subsurface tank, or land apply sludge or wastewater, a permit to construct and operate the wastewater system will be required. The permitting process can take as long as 6 months, depending on the complexity of the wastewater system. Industrial wastewater system rules

  • Wastewater Reuse Permit If the facility proposes to reuse reclaimed water from a municipal wastewater treatment facility, the reclaimed water must be obtained from a supplier that is permitted to supply reclaimed water of a category appropriate for the proposed reuse. The facility may also be subject to additional conditions in their wastewater discharge or wastewater system permit to address storage and reuse of the reclaimed water. Refer to the rules of reclaimed water and water reuse

Public Water Supply

If a facility develops its own source of drinking water a permit will be required. In most cases, an industrial facility will become a customer of an existing drinking water system rather than developing its own source of drinking water.

Permit Fee Schedule for the Construction of Public Water Supply and Water Pollution Control Facilities