Wyoming Administrative Code
Agency 020 - Environmental Quality, Dept. of
Sub-Agency 0011 - Water Quality
Chapter 3 - REGULATIONS FOR PERMIT TO CONSTRUCT, INSTALL OR MODIFY PUBLIC WATER SUPPLIES, WASTEWATER FACILITIES, DISPOSAL SYSTEMS, BIOSOLIDS MANAGEMENT FACILITIES, TREATED WASTEWATER REUSE SYSTEMS AND OTHER FACILITIES CAPABLE OF CAUSING OR CONTRIBUTING TO POLLUTION
Section 3-3 - Definitions

(a) The definitions in this Section supplement those definitions contained in W.S. § 35-11-103;

(b) "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.

(c) "Coal combustion residuals" means fly ash, bottom ash, boiler slag, and flue gas desulfurization materials generated from burning coal for the purpose of generating electricity by electric utilities and independent power producers.

(d) "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. Domestic septage does not include grease removed from a grease trap at a restaurant.

(e) "Domestic sewage" means waste and wastewater that is primarily from human or household operations that is discharged to or otherwise enters a treatment works.

(f) "Groundwater" means subsurface water that fills available openings in rock or soil materials such that they may be considered water saturated under hydrostatic pressure.

(g) "Noncommercial pits and wells" means pits and wells that are operated by an oil and gas operator; that receive wastes from oil or gas wells on a lease, unit or communitized area; that are not operated primarily for profit; and that are owned or operated by any of the owners of the oil and gas wells that produce the received wastes.

(h) "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.

(i) "Publicly owned or controlled facility" means a system owned or controlled by a municipality, county or water and sewer district.

(j) "Receiver" means any zone, interval, formation or unit in the subsurface into which fluids and pollutants are or may be discharged.

(k) "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. Non-soil strainer dikes, terraces, riprap and mulches primarily intended for soil conservation purposes and are not sedimentation control structures.

(l) "Sedimentation pond" means a primary sediment control structure designed, constructed, or maintained to control runoff to allow sediment to settle out. Dam-created impoundments, excavated depressions, and natural depressions are sedimentation ponds if they are designed, constructed, or maintained to control runoff to allow sediment to settle out and are larger than two acre-feet. Strainer dikes, terraces, riprap, check dams, mulches, or other secondary sediment control structures are not sedimentation ponds.

(m) "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.

(n) "Treated wastewater" means domestic sewage discharged from a treatment works after completion of the treatment process.

(o) "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. Treatment works also include:

(p) "Wastewater facilities" means sewerage systems, disposal systems and treatment works.

(q) "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.