In this subtitle the following words have the meanings indicated. “Abandon” means to discontinue the use of a well permanently. “Board” means the State Board of Well Drillers. “Owner” means a person who has the right to drill into, produce, and appropriate the production of water, for the owner, for another person, or for both of them. “Underground water” means a supply of water that may be developed by any type of well or spring from beneath the surface of the ground whether the water flows from the well or spring by natural force or is withdrawn by pumping, other mechanical device, or artificial process. “Well” means a hole made in the ground: To explore for groundwater; To obtain or monitor groundwater; To inject water into any underground formation from which groundwater may be produced; or To transfer heat to or from the ground or groundwater, if the hole: Extends more than 20 feet below the surface of the ground; and Is not a well for obtaining geothermal resources under § 5-601 of this article. “Well driller” means a person who is in charge of: Making, altering, repairing, or sealing a well; or Installing, altering, repairing, or disconnecting well system equipment.