Section R. 325.1606 - Definitions; V to YRule 106.
(1) "Wastewater" means a liquid waste that includes any of the following: (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.(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.Mich. Admin. Code R. 325.1606