(a) The definitions in Section 35-11-103(a) and (c) of the Wyoming Environmental Quality Act apply to this chapter. For example: - (i) "Department" means the Department of Environmental Quality established by the Wyoming Environmental Quality Act;
- (ii) "Director" means the director of the Department of Environmental Quality;
- (iii) "Administrator" means the administrator of the Water Quality Division of the department.
- (iv) "Public water supply" means any water supply as defined in W.S. 35-11-103(c) (viii). A public water supply includes the source, treatment system, waste disposal system, distribution system, service connections, finished water storage and pumping stations.
- (v) "Small wastewater system" means any sewerage system, disposal system or treatment works having simple hydrologic and engineering needs that is intended for wastes originating from a single residential unit serving no more than four families or that distributes 2,000 gallons or less of domestic sewage per day.
(b) The following definitions supplement those definitions contained in Section 35-11-103 of the Wyoming Environmental Quality Act. - (i) "Biosolids" means solid, semi-solid, or liquid residues generated during the treatment of domestic sewage in a treatment works. Biosolids include, but are not limited to, domestic septage; scum or solids removed in primary, secondary, or advanced wastewater treatment processes; and a material derived from biosolids. Biosolids do not include ash generated during the firing of biosolids in a biosolids incinerator or grit and screenings generated during preliminary treatment of domestic sewage in a treatment works.
- (ii) "Communitized area" means an area involving more than one lease where a cooperative agreement is developed for the drilling and operation of a single oil or gas well by one operator in accordance with a spacing order of the Wyoming Oil and Gas Conservation Commission and any subsequent well density order.
- (iii) "Domestic septage" means either liquid or solid material removed from a septic tank, cesspool, portable toilet, Type III marine sanitation device, or similar treatment works that receives only domestic sewage. Domestic septage does not include liquid or solid material removed from a septic tank, cesspool, or similar treatment works that receives either commercial wastewater or industrial wastewater and does not include grease removed from a grease trap at a restaurant.
- (iv) "Domestic sewage" means waste and wastewater that is primarily from human or household operations that is discharged to or otherwise enters a treatment works.
- (v) "General permit" means a permit issued by the Director to construct, install, modify or operate all facilities of a specific type located within the State of Wyoming where coverage for each facility of that type can be permitted thereunder. The Administrator or a designee has the authority to issue acceptance of coverage under the general permit.
- (vi) "Groundwater" means subsurface water that fills available openings in rock or soil materials such that they may be considered water saturated under hydrostatic pressure.
- (vii) "Individual permit" means a permit issued by the Director to construct, install, modify or operate a specific facility at a certain location. The permit may include all facilities requiring a permit under this chapter at a specific location.
- (viii) "Noncommercial pits and wells" means pits and wells operated by an oil and gas operator and intended to receive wastes from oil or gas wells on a lease, unit or communitized area.
- (ix) "Non-discharging treatment works" means any plant or other works used for the purpose of treating, stabilizing or holding wastes without any addition of any pollution or wastes to any waters of the state.
- (x) "Permit" means written authorization issued by the Division duly executed that authorizes the permittee to land apply wastes, reuse treated wastewater or construct, install, or modify the facilities as set forth in this chapter.
- (xi) "Permit by rule" means a system authorizing the construction, installation, modification, or operation of a facility provided the owner of the facility agrees to and meets the design, construction and performance standards of applicable regulations.
- (xii) "Publicly owned or controlled facility" means a system for which a municipality, county or water and sewer district receives a permit to discharge and/or construct, modify or install any public water supply, sewerage system, treatment works, disposal system or other facility capable of causing or contributing to pollution. If an entity other than a municipality, county or water and sewer district is the applicant or recipient of a permit under Chapter 2 and 3 of the Wyoming Water Quality Rules and Regulations, the facility will be deemed to not be publicly owned or controlled.
- (xiii) "Receiver" means any zone, interval, formation or unit in the subsurface into which fluids and pollutants are or may be discharged.
- (xiv) "Sedimentation control structures" means any collection ditch, containment ditch or other conveyance or impoundment used to convey runoff to an impoundment or impound runoff for the purpose of settling out sediment or suspended solids. The impoundment will individually contain less than two acre feet of runoff in addition to sediment storage or contain less than two acres in surface area, whichever is smaller. Non-soil strainer dikes, terraces, riprap and mulches are primarily intended for soil conservation purposes and do not require permits to construct.
- (xv) "Sedimentation pond" means a primary sediment control structure designed, constructed and maintained to slow down water runoff to allow sediment to settle out, including, dams or excavated depressions or natural depressions in excess of two acre feet. The term does not include strainer dikes, terraces, riprap, check dams, mulches, or other secondary sediment control structures.
- (xvi) "Sewage collection facility" means a sewerage system, including pipelines, conduits, storm sewers, pumping stations, force mains, and all other construction, devices, appurtenances and facilities used for collection or conducting wastes to an ultimate point for treatment or disposal.
- (xvii) "Treated wastewater" means domestic sewage discharged from a treatment works after completion of the treatment process.
- (xviii) "Treatment works" means either a publicly or privately owned device or system used to treat either domestic sewage or a combination of domestic sewage and commercial or industrial waste of a liquid nature.
- (xix) "Unit" means a combination of leases by a cooperative agreement to provide for a single operator of a number of oil and gas wells during exploration and/or production.
- (xx) "Wastewater facilities" means sewerage systems, disposal systems and treatment works.
- (xxi) "Water distribution facility" means pipelines, conduits, pumping stations, storage facilities and all other constructions, devices, appurtenances and facilities used for collecting or conducting water from the source to an ultimate point for treatment and from the treatment facility to the service connections of a public water supply.