R 325.1606 Definitions; V to Y.

Rule 106. (1) "Wastewater" means a liquid waste that includes any of the following: (a) Human excreta. (b) Wastes from a sink, lavatory, bathtub, shower, or laundry. (c) Any other liquid waste of organic or chemical nature, either singularly or in combination. (2) "Water supply system" means a well, pump, and pumping equipment. (3) "Well," as defined in section 12701 of the act, also includes all of the following: (a) "Water supply well," which means a well that is used to provide potable water for drinking or domestic purposes. (b) "Irrigation well," which means a well that is used to provide water for plants, livestock, or other agricultural processes. (c) "Heat exchange well," which means a well for the purpose of utilizing the geothermal properties of earth formations for heating or air conditioning. (d) "Industrial well," which means a well that is used to supply water for industrial processes, fire protection, or similar nonpotable uses. (4) "Well drilling" means any of the following: (a) Constructing, reconstructing or repairing a well. (b) Operating a well drilling machine. (c) Installing or removing casing or a well screen. (d) Well grouting. (e) Well development. (f) Well rehabilitation. (g) Hydrofracturing. (h) Chemical treatment of a well. (i) Plugging abandoned wells. (5) "Well house" means an enclosed structure which is located above the ground surface and which houses a well or water supply system. (6) "Well log" or "water well record" means a record of information about a specific well as provided for in section 12707 of the act. (7) "Well seal" means a device to prevent the entrance of contaminants into the top of a well casing. (8) "Well used temporarily for dewatering," as used in section 12701 of the act, means a well that is used to lower the groundwater level temporarily at a construction site. (9) "Vent" means an outlet which is at the upper terminal of a well casing and which allows the equalization of air pressure in the well.