The Oklahoma Water Resources Board licenses well drilling and pump installation professionals to ensure the integrity of well construction and prevent pollution of groundwater in Oklahoma. The program is guided by comprehensive standards developed in cooperation with the Well Driller Advisory Council.

The standards and rules developed require that all well drilling and pump installation activities meet a minimum set of requirements. These include where a well can be located in relation to potential pollution sources, installation of surface and annular seals, disinfection methods, approved materials, and other rules designed to protect the groundwater and promote public health. Licensed well drillers and pump installers are required to know and follow these standards to maintain their license in good standing.

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Who must be licensed?

Anyone who performs any of the following activities in Oklahoma must obtain a license from the OWRB:

• Drilling water wells, test holes, or water level observation wells
• Installing or repairing water well pumps and pumping equipment including windmill-driven and solar pumps
• Drilling geotechnical borings or monitoring wells
• Drilling geothermal wells
• Drilling anode groundbeds (cathodic protection wells)
• Drilling wells for marginal quality water (groundwater that has 5,000 to 10,000 parts per million in total dissolved solids)

Please feel free to reference our list of licensed contractors to make sure that anyone hired to perform well or pump work is a licensed professional.

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Find a Well Log

Licensed drillers are required to file a completion report, also referred to as a "well log", within 60 days of completing a new well or plugging or reconditioning an existing well. Well logs can be accessed using the map below or by using the search tool.