Terms used in this chapter mean: (1) "Board," the Water Management Board; (2) "Disposal system," a system for disposing of wastes, either by surface or underground methods, and includes sewerage systems, treatment works, disposal wells, septic tanks, and other systems; (3) "Person," the state or any agency or institution thereof, any municipality, political subdivision, public or private corporation, individual, partnership, limited liability company, association, federal agency, or other entity, and includes any officer or governing or managing body of any municipality, political subdivision, or public or private corporation, or limited liability company; (4) "Point source," any discernible, confined and discrete conveyance, including but not limited to any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, animal feeding operation, or vessel or other floating craft, from which pollutants are or may be discharged; (5) "Pollutant," any dredged spoil, solid waste, incinerator residue, sewage, sewage sludge, garbage, trash, munitions, chemical waste, biological material, radioactive material, heat, wrecked or discarded equipment, rock, sand, cellar dirt or any industrial, municipal or agricultural waste discharged into waters of the state. This term does not mean sewage from water craft; or water, gas or other material which is injected into a well to facilitate production of oil or gas, or water derived in association with oil or gas production and disposed of in a well, if the well used either to facilitate production or for disposal purposes is approved by authority of the state after it is determined that such injection or disposal will not result in the degradation of ground or surface water resources; (6) "Pollution," such contamination, or other alteration of the physical, chemical or biological properties, of any waters of the state as exceeds that permitted by state effluent or water quality standards, including change in temperature, taste, color, turbidity, or odor of the waters, or such discharge of any liquid, gaseous, solid, radioactive, or other substance into any waters of the state as will or is likely to create a nuisance or render such waters harmful, detrimental, or injurious to public health, safety, or welfare, or to domestic, commercial, industrial, agricultural, recreational, or other legitimate beneficial uses, or to livestock, wild animals, birds, fish, or other aquatic life; (7) "Publicly owned treatment works," any device or system used in a treatment, including recycling and reclamation, of municipal sewage or industrial waste of a liquid nature which is owned by a state or municipality. This term includes sewers, pipes or other conveyances only if they convey wastewater to a publicly owned treatment works providing treatment; (8) "Secretary," the secretary of the Department of Agriculture and Natural Resources; (9) "Sewerage system," pipelines or conduits, pumping stations, and force mains, and all other structures, devices, appurtenances and facilities used for collecting or conducting wastes to an ultimate point for treatment disposal; (10) "Treatment works," any plant or other works, used for the purpose of treating, stabilizing or holding wastes; (11) "Wastes," sewage, industrial wastes, pollutants and all other liquid, gaseous, solid, radioactive, or other substances which may pollute or tend to pollute any waters of the state; (12) "Waters of the state," all waters within the jurisdiction of this state, including all streams, lakes, ponds, impounding reservoirs, marshes, watercourses, waterways, wells, springs, irrigation systems, drainage systems, and all other bodies or accumulations of water, surface and underground, natural or artificial, public or private, situated wholly or partly within or bordering upon the state; and (13) "Water standards," water quality standards adopted pursuant to §§ 34A-2-10 and 34A-2-11 or actual existing beneficial uses, whichever is higher, and effluent standards adopted pursuant to § 34A-2-13 or pursuant to the best professional judgment of the secretary, whichever is applicable.